CN119467816B - A pressure-compensating electric actuator for deep-sea high-pressure valves on ships - Google Patents
A pressure-compensating electric actuator for deep-sea high-pressure valves on shipsInfo
- Publication number
- CN119467816B CN119467816B CN202411563481.7A CN202411563481A CN119467816B CN 119467816 B CN119467816 B CN 119467816B CN 202411563481 A CN202411563481 A CN 202411563481A CN 119467816 B CN119467816 B CN 119467816B
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- China
- Prior art keywords
- output shaft
- assembly
- motor
- pressure
- worm
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/01—Damping of valve members
- F16K47/012—Damping of valve members by means of a resilient damping element
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a naval vessel deep sea high pressure valve pressure compensation electric actuator, which comprises a housing, a motor, the output shaft subassembly, the worm subassembly, compensation subassembly, multistage gear subassembly includes one-level pinion, four-level gear wheel, the multistage duplex gear subassembly of arranging between one-level pinion and four-level gear wheel, the output shaft subassembly that sets up perpendicularly is located the middle part, the motor that one side of output shaft subassembly was set up for the level, the worm subassembly that the output shaft subassembly opposite side was set up for the level, the casing inner chamber is divided into holding chamber I, holding chamber II through the bearing mounting panel, holding chamber I includes the motor holding chamber that is used for holding the motor, holding chamber I outside the motor holding chamber holds worm subassembly, the output shaft subassembly, holding chamber II middle part holds multistage duplex gear subassembly, the output shaft and the one-level pinion of the motor that stretches into in holding chamber II of multistage duplex gear subassembly side are connected fixedly. The invention has the advantages of light weight, small volume, low fault, high precision, quick response and high reliability.
Description
Technical Field
The invention relates to the technical field of deep sea high pressure, in particular to a ship deep sea high pressure valve pressure compensation electric actuator.
Background
The existing hydraulic driving executing mechanism for the deep sea valve executing mechanism adopts a hydraulic driving mode, and the hydraulic driving executing mechanism is large in size, large in required installation occupation space, complex in structure and difficult to use and maintain due to the fact that a hydraulic oil source system, a pipeline system, a switching valve system, a pressure control system and a hydraulic monitoring system are required, and is large in size and weight due to the fact that the deep sea is a high-pressure environment, and the hydraulic driving executing mechanism is large in cost for resisting pressure, and particularly under the condition that a plurality of deep sea valves are adopted, occupied space and weight of a deep sea ship are further increased, so that the requirements of miniaturization, integration and light weight of the deep sea ship are not met.
The deep sea ship has higher and higher informatization requirements, equipment on the ship needs to feed back the working state of the equipment in real time, the equipment on the ship needs to unify a communication interface due to informatization requirements, and the operability of a human-computer interface is improved, and the existing hydraulic driving executing mechanism additionally occupies limited space due to the use of electronic components and sensors in a deep sea high-pressure environment, and is high in wiring cost and compression resistance cost due to the acquisition of multi-point hydraulic information, so that the integration, the light weight, the miniaturization and the informatization are not facilitated.
The deep sea ship has the advantages that the environment of the deep sea ship is changed with each other under normal pressure and high pressure, the environment of the deep sea ship is also changed with the environment of the deep sea ship under low temperature and the environment of the deep sea ship is changed with the environment of the high pressure, the pressure-resistant design of the oil container is required to be made due to the compressibility of liquid in the process of the normal pressure and the high pressure, the volume of the oil is expanded due to the expansion and contraction effect of the liquid in the process of the high temperature, the pressure is increased rapidly under the fixed volume to generate high pressure, the volume of the oil is reduced under the low temperature, and the pressure is reduced rapidly under the fixed volume to generate negative pressure, so that the pressure-resistant design and the pressure compensation design of the oil container are required to be made, and the complexity of a hydraulic system is increased.
Under the condition that space on a deep sea ship is limited, maintenance is difficult, required equipment is high in reliability, maintenance frequency is reduced, functions such as fault feedback and remote control are achieved, the deep sea ship relates to personal safety, equipment is strictly required to be safe and reliable, personal safety is not critical, a hydraulic driving executing mechanism is low in fault detection capability, pressure fault response is slow, remote control response is slow, ship safety is not facilitated, meanwhile, a hydraulic system needs to be regularly maintained, hydraulic oil and a rubber sealing element need to be regularly replaced due to the quality guarantee period of hydraulic oil and the quality guarantee period of the rubber sealing element, the sealing performance of the hydraulic system needs to be checked every five years after replacement according to the quality guarantee period, maintenance cost is high, and large-area popularization and application of the deep sea technology are not facilitated.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the ship deep sea high-pressure valve pressure compensation electric actuator which is light in weight, small in size, low in fault, high in precision, quick in response and high in reliability.
The scheme of the invention is as follows:
The electric actuating mechanism for pressure compensation of the ship deep sea high-pressure valve comprises a shell, a motor, an output shaft assembly, a worm assembly, a compensation assembly and a multi-stage gear assembly, wherein the multi-stage gear assembly comprises a one-stage pinion, a four-stage bull gear and a multi-stage duplex gear assembly arranged between the one-stage pinion and the four-stage bull gear;
The inner cavity of the shell is divided into a first accommodating cavity and a second accommodating cavity through a bearing mounting plate, the first accommodating cavity comprises a motor accommodating cavity for accommodating a motor, the first accommodating cavity outside the motor accommodating cavity is provided with a worm assembly and an output shaft assembly, the middle part of the second accommodating cavity is provided with a multi-stage duplex gear assembly, an output shaft of the motor extending into the second accommodating cavity at one side of the multi-stage duplex gear assembly is fixedly connected with a first-stage pinion, the worm assembly comprises a worm, a four-stage big gear is fixed at the end part of the worm extending into the second accommodating cavity at the other side of the multi-stage duplex gear assembly, and the first-stage pinion, the multi-stage duplex gear assembly and the four-stage big gear are sequentially meshed to form a transmission assembly;
The output shaft assembly comprises an output shaft used for being connected with a valve rod of the valve and a worm wheel used for being meshed with the worm, and the worm wheel is fixed on the cylindrical surface of the output shaft;
The upper part of the shell corresponding to the second accommodating cavity is provided with an oil filling hole, and the oil filling hole is detachably connected with a plugging cap;
the upper part of the shell corresponding to the first accommodating cavity is provided with an upper mounting hole corresponding to the output shaft, and the output shaft is connected with a position sensor;
The compensation component is arranged outside the shell and comprises a leather cup and a leather cup protecting cover covered outside the leather cup, a bowl opening is arranged at one end of the leather cup, and an inner cavity of the leather cup is communicated with the second accommodating cavity through the bowl opening and a leather cup opposite interface;
sealing elements are arranged between the bearing cover and the shell, between the output shaft and the shell and between the side plate and the shell.
The surface of the leather cup protecting cover is provided with a plurality of through holes, and the appearance of the leather cup protecting cover is matched with the appearance of the leather cup;
The multi-stage duplex gear assembly comprises a primary duplex gear assembly, a secondary duplex gear assembly and a tertiary duplex gear assembly, and the tertiary duplex gear assembly is in transmission connection with the worm through a four-stage large gear;
the fourth sealing ring is arranged between the bearing cover and the shell to seal the bearing cover and the shell, the fifth sealing ring is arranged between the output shaft and the shell to seal the output shaft and the shell, the sixth sealing ring is arranged between the side plate and the shell to seal the side plate and the shell, and the fourth sealing ring, the fifth sealing ring and the sixth sealing ring form a sealing piece.
The worm wheel is a sector worm wheel, and the lower end of the bearing cover is provided with a sector boss which is contacted with the sector worm wheel and used for limiting an output machine, so that the position overshoot of the output shaft during rotation is avoided.
The use method comprises the steps of opening the sealing cap, filling hydraulic oil into the shell and the leather cup, pressing the leather cup and discharging redundant air through the oil filling hole in the process of filling the hydraulic oil, standing the hydraulic oil when the hydraulic oil in the shell and the leather cup is filled, pressing the leather cup after the standing is finished, and discharging redundant air through the oil filling hole;
When the valve is required to be opened, the driving motor works in the forward direction, high-rotation-speed low-torque power of the motor is converted into low-rotation-speed high-torque output torque through the transmission assembly and the worm gear, and the torque is transmitted to the valve rod of the valve through the output shaft, so that the valve is opened;
When the valve is required to be closed, the driving motor works reversely, high-rotation-speed low-torque power of the motor is converted into low-rotation-speed high-torque output torque through the transmission assembly and the worm gear, and the torque is transmitted to the valve rod of the valve through the output shaft, so that the valve is closed.
The control assembly comprises a control shell, a control cover and a controller, wherein the controller is arranged in the control shell, the control cover is connected to the control shell in a sealing way, and a second socket, a third socket and a fourth socket are integrated on the side face of the control shell;
The outer side surface of the shell is provided with a first socket connected with the position sensor, a lead at the front end of the motor penetrates through the shell and is connected with the control assembly through the first socket and the cable assembly to form a motor power supply control loop, and the position sensor is connected with the control assembly through the first socket and the cable assembly to form a position information feedback loop.
The use method comprises the steps of opening the plugging cap, filling hydraulic oil into the shell and the leather cup, pressing the leather cup and discharging redundant air through the oil filling hole in the process of filling the hydraulic oil, standing the hydraulic oil when the shell and the leather cup are filled with the hydraulic oil, pressing the leather cup after the standing is finished, and discharging redundant air through the oil filling hole;
When the valve is required to be opened, a valve opening instruction is transmitted to the control assembly through the third socket, the control assembly drives the motor to work positively, high-rotating-speed low-torque power of the motor is converted into low-rotating-speed high-torque output torque through the transmission assembly and the worm gear, the torque is transmitted to the valve rod of the valve through the output shaft, the valve is opened, the position sensor detects that the rotation position information of the output shaft is transmitted to the control assembly through the position information feedback loop, and when the control assembly judges that the rotation position information of the output shaft is in a valve opening state, the motor is controlled by the motor power supply control loop to control the motor to be powered off;
When the valve is required to be closed, a valve closing instruction is transmitted to the control assembly through the third socket, the control assembly drives the motor to work reversely, high-rotation-speed low-torque power of the motor is converted into low-rotation-speed high-torque output torque through the transmission assembly and the worm gear, the torque is transmitted to the valve rod of the valve through the output shaft to enable the valve to be closed, the position sensor detects that rotation position information of the output shaft is transmitted to the control assembly through the position information feedback loop, when the control assembly judges that the rotation position information of the output shaft is in a valve closing state, the motor is controlled by the motor power supply control loop to control the motor to be powered off, in the process that the external environment rises from deep sea to sea, the external sea water pressure is reduced, the internal oil is increased in volume in the pressure reduction process, the leather cup is deformed outwards, the internal volume of the leather cup is increased, the volume increased by compensating the oil pressure difference between the inside and outside is kept small value.
The utility model provides a naval vessel deep sea high pressure valve pressure compensation electric actuator, which comprises a motor, position sensor, the output shaft subassembly, the worm subassembly, control assembly, the bearing mounting panel, the curb plate, first socket, compensation assembly, a housing, the bearing cap, one-level pinion, one-level duplex gear subassembly, second grade duplex gear subassembly, tertiary duplex gear subassembly, cable subassembly, the stifled cap, motor front end wire forms the motor power supply control circuit through first socket, cable subassembly and control assembly connection, motor cylindrical shell level is placed in the horizontal cylindrical cavity of housing right side downside, motor front end circular mounting face is fixed through five screws and bearing mounting panel connection, the cylindrical output shaft of motor front end is fixed through the retaining ring connection with the cylindrical hole of one-level pinion, one-level pinion left side and one-level duplex gear subassembly right side meshing, one-level duplex gear subassembly left side and second grade duplex gear subassembly right side meshing, second grade duplex gear subassembly left side and tertiary duplex gear subassembly right side meshing, tertiary duplex gear subassembly left side and worm subassembly four-level big gear right side meshing, one-level duplex gear subassembly, two-level duplex gear subassembly and worm gear subassembly, the middle position is placed between the bearing mounting panel and the bearing mounting panel, the horizontal cavity is placed to the worm between the bearing assembly and the bearing mounting panel, the horizontal cavity is placed to the middle position between the horizontal down, the worm and the bearing assembly is installed to the bearing assembly between the bearing assembly and the bearing mounting panel, the horizontal down side, the upper end face of the position sensor is fixedly connected with a circular boss on the upper part of the bearing cover through four screws, the lower end face of the position sensor is fixedly connected with the upper end face of an output shaft in the output shaft assembly through four screws, the position sensor is connected with the control assembly through a first socket and a cable assembly to form a position information feedback loop, the cylindrical boss at the lower end of the bearing cover is fixedly connected with the cylindrical cavity in the middle of the shell through six screws, the rear end face of the side plate is fixedly connected with the front end face of the shell through ten screws, the front end of the compensation assembly is fixedly connected with the middle of the left side of the shell through four screws, the bottom face of the control assembly is fixedly connected with the rear end face of the waist-shaped cavity at the upper end of the shell through four screws, the first socket is fixedly connected with the rear end face of the waist-shaped cavity at the left side of the shell, the first socket is arranged below the compensation assembly, the first plug at the lower end of the cable assembly is fixedly connected with the first socket, the second plug at the upper end of the cable assembly is fixedly connected with the second socket at the left side of the control assembly, and the waist-shaped cap is mounted on the boss at the left side of the upper end of the shell;
The left side of the shell is a horizontal small cylinder, the middle is a square body, the right side is a horizontal big cylinder, the front end is a waist-shaped body, the left side cylinder, the middle square body and the right side cylinder are connected with the front end waist-shaped body into a whole, the left side cylinder is internally provided with a horizontal cylinder cavity, the middle square body is internally provided with a square cavity, the right side cylinder is internally provided with a horizontal cylinder cavity, the front end waist-shaped body is internally provided with a waist-shaped cavity, the left side cylinder cavity, the middle square cavity, the right side cylinder cavity and the front end waist-shaped cavity are communicated, the middle square cavity is separated from the right side cylinder cavity and is not communicated, the middle square body is provided with a cylinder in the vertical direction, the middle of the vertical cylinder is provided with a cylinder through hole, six screw holes which are uniformly distributed are all around, the cylinder through holes are communicated with the direction cavity, the upper end of the shell is provided with four cylinder bosses, the middle of the cylinder bosses are provided with screw holes, ten cylinders are evenly distributed on the outer side of the front waist body, threaded holes are formed in the middle of the ten cylinders, a rhombus body is arranged on the left side of the front waist body, a cylindrical hole is formed in the middle of the rhombus body, a leather cup butt joint port is formed by the cylindrical hole, the cylindrical hole is communicated with the front waist body, a small square body for fixedly connecting a first socket is arranged below the rhombus body on the left side of the front waist body, a cylinder is arranged at the front end of the small square body, a cylindrical through hole is formed in the middle of the small square body, threaded holes are formed in four corners of the small square body, the cylindrical through hole is communicated with the front waist body, a small cylinder is arranged on the left side of the left side cylinder, a threaded hole is formed in the middle of the small cylinder, a vertical cylindrical boss is formed in the middle of the bottom of a shell, a circular through hole is formed in the middle of the cylindrical boss, a lower mounting hole is formed by the circular through hole and a square cavity, the periphery of the cylindrical boss is formed by four small cylindrical bosses, threaded holes are formed in the middle of the small cylindrical boss, eight unevenly distributed threaded holes for connecting and fixing a bearing mounting plate are formed in the rear end of the kidney-shaped cavity, a square wiring groove is formed in the rear end of the kidney-shaped cavity, a line threading hole for wiring a position sensor is formed in the square wiring groove, a cylindrical boss is arranged at the upper end of the left side of the kidney-shaped cavity, an oil filling hole for installing a plugging cap is formed in the middle of the cylindrical boss, the oil filling hole is a threaded hole, the oil filling hole is communicated with the front end kidney-shaped cavity, and a circular sealing groove is formed in the upper end of the cylindrical boss;
the middle part of the bearing cover is provided with a placement space for placing the position sensor, the lower part of the placement space is provided with a positioning groove for positioning a second bearing of the output shaft assembly, and the outer ring of the bearing cover is provided with a circle of mounting holes;
the output shaft assembly comprises an output shaft, a worm gear, a first bearing, a second bearing and a screw, wherein the worm gear is fixed on the middle cylindrical surface of the output shaft through the screw, the first bearing is arranged on the lower end cylindrical surface of the output shaft, and the second bearing is arranged on the upper end cylindrical surface of the output shaft;
the worm assembly comprises a worm, a third bearing, a fourth-stage large gear, a flat key and a check ring, wherein the third bearing is arranged on the cylindrical surface of the tail end of the worm, the fourth bearing is arranged on the cylindrical surface of the front end of the worm, the fourth-stage large gear is arranged in front of the fourth bearing, the flat key is arranged between the fourth-stage large gears and the worm, and the check ring is arranged at the front end of the fourth-stage large gear;
The control assembly comprises a control shell, a control cover, a controller, a second socket, a third socket, a fourth socket, a first control sealing ring and a second control sealing ring, wherein the controller is placed in a cavity of the control shell and is fixedly connected with the cavity of the control shell through screws, the control cover is placed above the control shell and is fixedly connected with the cavity of the control shell through screws, the controller is respectively connected with the second socket, the third socket and the fourth socket through wires to form a power supply and signal transmission loop, the first control sealing ring is placed between the control cover and a horizontal contact surface of the control shell, the second control sealing ring is placed between the control cover and a vertical contact surface of the control shell, the second socket is placed on the left outer wall of the control shell and is fixedly connected with the left outer wall of the control shell through screws, the third socket is placed in front of the second socket, the fourth socket is placed on the left outer wall of the control shell and is fixedly connected with the second socket through screws, and the fourth socket is placed in front of the third socket;
The fifth sealing ring is arranged between the output shaft and the shell to seal the output shaft and the shell, the sixth sealing ring is arranged between the side plate and the shell to seal the side plate and the shell, and the fourth sealing ring, the fifth sealing ring and the sixth sealing ring form a sealing piece.
The bearing mounting plate is a waist-shaped plate, a cylindrical first boss is arranged on the inner surface of the bearing mounting plate, a circular groove for positioning the motor is arranged in the middle of the first boss, a circular hole I for fixing the motor is formed in the end face of the first boss, a shaft hole for penetrating out of an output shaft of the motor is formed in the middle of the circular groove, a cylindrical third boss is also arranged on the inner surface of the bearing mounting plate, a positioning groove for positioning a fourth bearing is formed in the middle of the third boss, an assembly hole for penetrating out of a worm is formed in the middle of the positioning groove, a cylindrical second boss corresponding to the assembly hole is formed in the outer surface of the bearing mounting plate, a positioning groove I for positioning one end of the multi-stage duplex gear assembly is formed in the outer surface of the bearing mounting plate, and a positioning groove II for positioning the other end of the multi-stage duplex gear assembly is formed in the inner surface of the side plate, wherein the positioning groove II corresponds to the positioning groove I;
An avoidance groove for avoiding the worm wheel is formed in the inner surface of the bearing mounting plate between the third boss and the first boss;
The side plates are waist-shaped plates.
The cup is placed in the cup guard inner chamber, and the cup rear end is the cuboid, and the cuboid inside is the cuboid cavity, and the cup middle section is the cylinder, is the circular cavity in the middle of the cylinder, and the cup front end is the rhombus, is the circular hole in the middle of the rhombus, cup rear end cuboid cavity and the circular cavity of middle section and the circular hole intercommunication of front end, the cup guard rear end is the cuboid, and the cuboid inside of cup guard is the cuboid cavity, and the cuboid rear end of cup guard rear end opens square hole, evenly distributed circular hole and cuboid cavity intercommunication in the middle of the cuboid of cup guard rear end, cup guard middle section is the cylinder, is the circular cavity in the middle of the cylinder, and cup guard front end is the rhombus, is the circular hole in the middle of the rhombus, cup guard rear end cuboid cavity and the circular cavity of middle section and the circular hole intercommunication of front end.
The upper part of the bearing cover is provided with a circular boss, a protruding cylinder is arranged below the circular boss, a circle of mounting hole is arranged on the protruding cylinder, a cylinder boss is arranged below the protruding cylinder, a circular groove for positioning a second bearing of the output shaft assembly is arranged in the middle of the lower cylinder boss, a circular hole is arranged above the circular groove, a cylindrical groove is arranged above the circular hole, the circular hole and the cylindrical groove form a positioning space for positioning the position sensor, a square groove is arranged on the left side of the lower cylinder boss, an inclined cylinder hole inclined to the right is arranged in the square groove, the inclined cylinder hole is communicated with the upper cylinder groove, a fan-shaped boss which is used for limiting an output machine is contacted with a worm gear is arranged below the lower cylinder boss, and the worm gear is a fan-shaped worm gear;
the front and the rear of the primary pinion are horizontally provided with circumferential tooth shapes, the front and the rear of the tooth shapes are provided with right cylindrical bosses, and a flat through hole is arranged in the middle of each cylindrical boss;
the first-stage duplex gear assembly comprises a first-stage large gear, a second-stage small gear, a first bearing I and a second bearing I, wherein the second-stage small gear is arranged on a cylindrical surface on the middle side of the first-stage large gear, the first bearing I is arranged on a cylindrical surface on the front end of the first-stage large gear, and the second bearing I is arranged on a cylindrical surface on the rear end of the first-stage large gear;
The second-stage duplex gear assembly comprises a second-stage large gear, a third-stage small gear, a third bearing I and a fourth bearing I, wherein the third-stage small gear is arranged on a cylindrical surface on the middle side of the second-stage large gear, the third bearing I is arranged on a cylindrical surface on the front end of the second-stage large gear, and the fourth bearing I is arranged on a cylindrical surface on the rear end of the second-stage large gear;
The three-level duplex gear assembly comprises a three-level big gear, a four-level small gear, a fifth bearing and a sixth bearing, wherein the four-level small gear is arranged on a cylindrical surface on the middle side of the three-level big gear, the fifth bearing is arranged on a cylindrical surface on the left side of the three-level big gear, and the sixth bearing is arranged on a cylindrical surface on the right side of the three-level big gear;
the cable assembly comprises a first plug, a second plug and a vulcanization cable, wherein the first plug is arranged below the vulcanization cable, the first plug is connected with the vulcanization cable at 90 degrees, the second plug is arranged above the vulcanization cable, the second plug is connected with the vulcanization cable at 90 degrees, the first plug and the second plug are staggered at 90 degrees in space, and the first plug and the second plug are communicated through the vulcanization cable to form a loop;
the plug cap comprises a plug and a third sealing ring, wherein the upper end of the plug is provided with a cylinder, a hexagonal groove is formed in the middle of the cylinder at the upper end, an external thread cylinder is arranged below the cylinder at the upper end, an annular groove is formed in the middle of the external thread cylinder and the cylinder at the upper end, and the third sealing ring is placed in the annular groove of the plug.
According to the invention, the motor is used as a power source to convert electric energy into mechanical energy, the position sensor provides rotation position information of an output shaft, the output shaft assembly is connected with the outside and transmits torque, the worm assembly converts horizontal torque into vertical torque, the control assembly controls the motor to work according to an external instruction and the output position information, the side plate and the bearing mounting plate jointly support the horizontal transmission gear assembly, the first socket is connected with an external power supply and is communicated, the compensation assembly realizes a pressure compensation function, the shell and the bearing cover are provided with other parts, and the primary pinion, the primary duplex gear assembly, the secondary duplex gear assembly and the tertiary duplex gear assembly are used for converting output power of the motor to output low rotation speed.
Based on the application of the thermal expansion and contraction characteristics and the compressibility characteristics of oil, the inventor calculates the volume change of a certain amount of oil at different temperatures according to the expansion coefficient of the oil at the temperature of 100 ℃ of the temperature environment used by the oil, and according to a liquid pressure formula, the volume change of a certain amount of liquid can lead to the change of the pressure of the oil under the condition of fixed volume, namely the volume increase can be caused by the temperature rise, but the volume of a container is unchanged, and the pressure can be increased, and vice versa. The invention eliminates the influence of constant volume of the container by the deformable characteristic of the leather cup with pressure compensation, and eliminates the pressure change caused by temperature change. Meanwhile, the invention is suitable for being used in a deep sea high pressure environment, the change of oil liquid volume can be caused by the same pressure change, and the influence of pressure is eliminated through the deformation of the leather cup. According to a pressure formula, the larger the liquid pressure is under the same volume, the smaller the volume is, the pressure is transmitted to the inside of the shell through the deformation of the leather cup by the external pressure of the shell under the deep sea high pressure environment, the volume of the leather cup is reduced, the volume of oil is reduced, the pressure of the oil is increased and approaches to the external deep sea pressure, so that the internal pressure and the external pressure are basically consistent. In the same way, under the normal pressure environment, the volume of the oil liquid is restored to the original volume through the leather cup, the pressure of the oil liquid is restored to normal pressure, the internal and external pressures are substantially uniform.
The vertical output shaft assembly is positioned in the middle of the shell, the horizontal motor and worm assembly are positioned at two sides of the output shaft assembly, the transmission assembly is positioned at the ends of the output shaft and worm assembly, the motor and worm assembly are symmetrically arranged along the output shaft assembly, and the shell is in a flat structure through the layout, so that the gravity center of the whole structure of the invention is sunk, and the vibration resistance and impact resistance of the invention are improved structurally. The valve position information is acquired through the transmission part, the motor is used for driving the transmission part, the motor is higher in precision, higher in response speed, low in failure rate and high in safety compared with a hydraulic system, the service life is greatly prolonged through test verification, the capability of bearing environmental influences such as high temperature, low temperature, vibration and impact can be realized, the structure is simple and compact, the arrangement is convenient, the stability is good, and the ship miniaturization, the light weight, the informatization and the integration are facilitated. The transmission part comprises a transmission assembly, a worm assembly and a worm wheel.
The invention does not set up the spring, avoid relying on the compensation mode of the spring elasticity to change the poor problem of temperature stability. The invention provides a ship deep sea high-pressure valve pressure compensation electric actuating mechanism which has the advantages of small volume, high safety coefficient and low sealing cost, adopts a pressure compensation structure mode to balance the inside and outside high-pressure environments of a transmission part, reduces the pressure difference between the inside and the outside, is beneficial to the rotary sealing of the transmission part, avoids the extremely high cost of high-pressure rotary sealing, simultaneously reduces the pressure resistance requirement of a shell due to the balance of the inside and the outside pressure, solves the problems of hydraulic pressure compensation and temperature compensation, and has the advantages of light weight and miniaturization design of the shell, small external dimension and light weight, and reduces the occupied space and weight of the ship.
The hydraulic pressure used in the present invention is greatly reduced. Compared with 10L of hydraulic oil used by a 500Nm valve hydraulic driving device of a certain ship, the hydraulic oil in the 500Nm valve pressure compensation electric actuator for the deep sea valve of the ship is 0.9L, and 0.9L fills a shell and a leather cup, so that the weight reduction is realized from the aspect of oil quantity.
The movable part is soaked in oil liquid, so that the oil liquid has a full lubrication effect, mechanical abrasion is avoided, the service life of the movable part is prolonged, and the reliability is improved. The movable parts comprise a motor rotor, a bearing, a gear, a worm gear, an output shaft, a position sensor, a leather cup, a sealing ring and the like.
The shell and the sealing element are equivalent to low-pressure sealing, so that the sealing cost is low and the reliability is high. The number of the sealing elements is greatly reduced, high maintenance cost is avoided, and popularization and application are facilitated. The sealing element only comprises a control component sealing ring, a bearing cover sealing ring, an output shaft sealing ring and a side cover sealing ring.
Drawings
FIG. 1 is a schematic diagram of the structure of the belt-made assembly 5 of the electric actuator for pressure compensation of the deep sea valve of the ship;
FIG. 2 is a schematic structural view of the non-control assembly 5 of the electric actuator for pressure compensation of the deep sea valve of the ship according to the present invention;
FIG. 3 is one of the partial cross-sectional views of the deep sea high pressure valve pressure compensating electric actuator of the present invention;
FIG. 4 is a second partial cross-sectional view of the marine deep sea high pressure valve pressure compensating electric actuator of the present invention;
FIG. 5 is a schematic illustration of an output shaft assembly;
FIG. 6 is a schematic view of a worm assembly;
FIG. 7 is a schematic diagram of a control assembly;
FIG. 8 is a cross-sectional view of the control assembly;
FIG. 9 is one of the schematic views of the bearing mounting plate;
FIG. 10 is a second schematic view of a bearing mounting plate;
FIG. 11 is one of the side panels schematic;
FIG. 12 is one of the side panel schematic views;
FIG. 13 is a schematic diagram of a compensation assembly;
FIG. 14 is a schematic view of a cup;
FIG. 15 is a schematic view of a cup shield;
FIG. 16 is one of the schematic views of the housing;
FIG. 17 is a second schematic view of the housing;
FIG. 18 is a schematic view of a bearing cap;
FIG. 19 is a cross-sectional view of a bearing cap;
FIG. 20 is a schematic view of a primary tandem gear assembly;
FIG. 21 is a schematic diagram of a two-stage double-gear assembly;
FIG. 22 is a schematic view of a three stage double gear assembly;
FIG. 23 is a schematic view of a cable assembly;
FIG. 24 is a cross-sectional view of the closure cap;
Fig. 25 is a perspective view of the plugging cap.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In fig. 1, the in-paper direction is the rear, the out-of-paper direction is the front, and the up-down-left-right direction is unchanged.
In fig. 1-4, the electric actuating mechanism for pressure compensation of the ship deep sea high-pressure valve comprises a motor 1, a position sensor 2, an output shaft assembly 3, a worm assembly 4, a control assembly 5, a bearing mounting plate 6, a side plate 7, a first socket 8, a compensation assembly 9, a shell 10, a bearing cover 11, a primary pinion 12, a primary duplex gear assembly 13, a secondary duplex gear assembly 14, a tertiary duplex gear assembly 15, a cable assembly 16 and a blocking cap 17, wherein a lead at the front end of the motor is connected with the control assembly 5 through the first socket 8 and the cable assembly 16 to form a motor power supply control loop. The lead wire at the front end of the motor is a lead wire of a motor three-phase and rotor position sensor, the three-phase wire is a lead wire of a motor three-phase winding, the lead wire of the rotor position sensor is a lead wire of a motor rotor tail position sensor, the lead wire supplies power to the position sensor and feeds back a rotor position signal, and the lead wire at the front end of the motor passes through a square wiring groove (10V) at the front end of the shell. The cylindrical shell of the motor 1 is horizontally arranged in a horizontal cylindrical cavity at the right lower side of the shell 10, a front end circular mounting surface of the motor 1 is fixedly connected with a bearing mounting plate 6 through five screws, a front end cylindrical output shaft of the motor 1 is fixedly connected with a cylindrical inner hole of a primary pinion 12 through a check ring, circumferential tooth shapes are horizontally arranged on the front and back sides of the primary pinion 12, tooth-shaped front and back right cylindrical bosses are provided with flat through holes in the middle, the left side of the primary pinion 12 is meshed with the right side of a primary duplex gear assembly 13, the left side of the primary duplex gear assembly 13 is meshed with the right side of a secondary duplex gear assembly 14, the left side of the secondary duplex gear assembly 14 is meshed with the right side of a tertiary duplex gear assembly 15, the left side of the tertiary duplex gear assembly 15 is meshed with the right side of a fourth-stage large gear 4d of a worm assembly 4, the primary duplex gear assembly 13, The two-stage duplex gear assembly 14 and the three-stage duplex gear assembly 15 are horizontally arranged between the bearing mounting plate 6 and the side plate 7. The right side of the middle worm cylindrical surface of the worm assembly 4 is meshed with the left side of the middle worm wheel 3b cylindrical surface of the output shaft assembly 3, the worm assembly 4 is horizontally installed in a cylindrical cavity on the left side of the shell 10, the middle worm end of the worm assembly 4 is positioned by the bearing installation plate 6, the output shaft assembly 3 is vertically placed between the middle cylindrical cavity of the shell 10 and the bearing cover 11, the position sensor 2 is horizontally placed between the output shaft assembly 3 and the bearing cover 11, the upper end surface of the position sensor 2 is fixedly connected with the upper part of the bearing cover 11 through four screws, the round boss 11a is fixedly connected with the upper end surface of the output shaft 3a in the output shaft assembly 3 through four screws, the lower end surface of the position sensor 2 is fixedly connected with the upper end surface of the output shaft 3a in the output shaft assembly 3, the position sensor 2 is connected with the first socket 8, The cable assembly 16 is connected with the control assembly 5 to form a position information feedback loop, the cylindrical boss at the lower end of the bearing cover 11 is placed in the middle cylindrical cavity of the shell 10 and is fixedly connected with the first socket 8 through six screws, the rear end face of the side plate 7 is fixedly connected with the front end face of the shell 10 through ten screws, the front end of the compensation assembly 9 is fixedly connected with the middle left side of the shell 10 through four screws, the bottom face of the control assembly 5 is fixedly connected with the four cylindrical surfaces at the upper end of the shell 10 through four screws, the rear end face of the bearing mounting plate 6 is fixedly connected with the rear end face of the waist-shaped cavity at the front end of the shell 10 through six screws, the first socket 8 is placed below the compensation assembly 9, the first plug at the lower end of the cable assembly 16 is fixedly connected with the first socket 8, the second plug 16b at the upper end of the cable assembly 16 and the second socket 5d at the left side of the control assembly 5 are fixedly connected with each other, the blocking cap 17 is mounted on the cylindrical boss 10u at the upper end of the left side of the waist-shaped body of the shell 10, the bearing cover 11 is fixedly connected with the rear end face of the waist-shaped cavity through six screws, the first socket 8 is placed in the middle of the left side of the shell 10, the first socket 8 is fixedly connected with the first socket 8, the first socket 8 is fixedly connected with the first plug 8, the second plug is fixedly arranged at the left side of the left plug seat 2, and the second socket 3, the second socket is fixedly arranged at the left end of the left side of the left plug assembly 5. The fourth sealing ring 18 is arranged between the bearing cover 11 and the shell 10 to seal the bearing cover 11 and the shell 10, the fifth sealing ring 19 is arranged between the output shaft 3a and the shell 10 to seal the output shaft 3a and the shell 10, the sixth sealing ring 20 is arranged between the side plate 7 and the shell 10 to seal the side plate 7 and the shell 10, and the fourth sealing ring 18, the fifth sealing ring 19 and the sixth sealing ring 20 form a sealing piece.
In fig. 5, the output shaft assembly 3 includes an output shaft 3a, a worm wheel 3b, a first bearing 3c, a second bearing 3d, and a screw 3e, wherein the worm wheel 3b is fixed on the middle cylindrical surface of the output shaft 3a through the screw 3e, the first bearing 3c is placed on the lower end cylindrical surface of the output shaft 3a, and the second bearing 3d is placed on the upper end cylindrical surface of the output shaft 3 a.
In fig. 6, the worm assembly 4 includes a worm 4a, a third bearing 4b, a fourth bearing 4c, a fourth-stage large gear 4d, a flat key 4e, and a retainer ring 4f, wherein the third bearing 4b is disposed on a cylindrical surface of a tail end of the worm 4a, the fourth bearing 4c is disposed on a cylindrical surface of a front end of the worm 4a, the fourth-stage large gear 4d is disposed in front of the fourth bearing 4c, the flat key 4e is disposed between the fourth-stage large gears 4d and the worm 4a, and the retainer ring 4f is disposed at a front end of the fourth-stage large gear 4 d.
In fig. 7 and 8, the control assembly 5 includes a control housing 5a, a control cover 5b, a controller 5c, a second socket 5d, a third socket 5e, a fourth socket 5f, a first control sealing ring 5g, and a second control sealing ring 5h, wherein the controller 5c is placed in a cavity of the control housing 5a and is fixedly connected with the power plate through a screw, the control cover 5b is placed above the control housing 5a and is fixedly connected with the outer wall of the left side of the control housing 5a through a screw, the controller 5c is respectively connected with the second socket 5d, the third socket 5e, and the fourth socket 5f through wires to form a power supply and signal transmission loop, the first control sealing ring 5g is placed between the control cover 5b and a horizontal contact surface of the control housing 5a, the second control sealing ring 5h is placed between the control cover 5b and the vertical contact surface of the control housing 5a, the controller 5c includes a control board and a power plate, the control board is mounted on the power plate and is connected with the power plate through a pin, the second socket 5d is placed on the outer wall of the left side of the control housing 5a and is fixedly connected with the third socket 5e through a wire, the third socket 5e is placed on the outer wall of the front of the control housing 5f and is placed on the front of the fourth socket 5f through the screw. The controller comprises control panel and power board, avoids the mutual interference, adopts upper and lower 2 layers structural design simultaneously, make full use of space, reduce control assembly volume, and little volume control assembly is favorable to deep sea high pressure environment adaptability, and little volume control assembly warp for a short time under the deep sea high pressure, can not lead to seal structure inefficacy because of warping, guarantees seal reliability, and seal inefficacy can lead to inside controller to damage, finally leads to the valve inefficacy, takes place serious accident.
In fig. 9 and 10, the bearing mounting plate 6 is a kidney-shaped plate, the front end on the left side has a cylindrical first boss 6a, a circular groove 6b is formed in the middle of the first boss 6a, five unevenly distributed circular holes one 6c are formed in the outer side of the first boss 6a, a shaft hole 6e is formed in the middle of the left side, a cylindrical second boss 6d is formed on the rear end on the right side, a cylindrical third boss 6f is formed in the front end on the right side, a positioning groove 6h is formed in the middle of the third boss 6f, an assembly hole 6g is formed in the middle of the right side, four unevenly distributed circular holes two 6j are formed in the outer side on the right side, an avoidance groove 6k is formed in the middle of the front end, the avoidance groove is a square groove, a cylindrical fourth boss 6q, a cylindrical fifth boss 6w, a cylindrical sixth boss 6r are formed in the middle of the rear end, the fourth boss 6q is arranged between the second boss 6d and the fifth boss 6w, the fifth boss 6w is connected in the middle of the sixth boss 6r, the fourth boss 6q is provided with a circular groove 6t in the middle of the fifth boss 6w, the fifth boss 6w is provided with a circular groove 6y in the middle, and the circular boss 6p is formed in the middle of the sixth boss 6r is provided with a circular hole in the middle on the middle.
In fig. 11 and 12, the side plate 7 is a kidney-shaped plate 7a, ten semicircular bosses 7b are arranged on the outer side of the kidney-shaped plate 7a, a circular hole 7c is arranged in the middle of the semicircular boss 7b, a kidney-shaped boss 7d is arranged in the middle of the front end, a kidney-shaped groove 7e is arranged in the middle of the rear end, three unevenly horizontally distributed cylindrical bosses 7f are arranged in the middle of the kidney-shaped groove 7e, and a circular groove 7h is arranged in the middle of the three cylindrical bosses 7 f.
In fig. 13-15, the compensation component 9 comprises a leather cup 9a and a leather cup shield 9b, the leather cup is realized through deformation of the leather cup, the square structure of the leather cup is used for increasing the internal volume of the leather cup as much as possible under the existing size and compensating the amount as much as possible, the leather cup shield structure protects the leather cup from damage of external objects such as scratches, the leather cup 9a is placed in a cuboid cavity of the leather cup shield 9b, the rear end of the leather cup 9a is cuboid, the cuboid is internally provided with the cuboid cavity, the middle section of the leather cup 9a is a cylinder, the middle of the cylinder is a circular cavity, the front end of the leather cup 9a is a rhombus, the middle of the rhombus is a circular hole, the cuboid cavity at the rear end of the leather cup shield 9a is a cuboid, the cuboid cavity at the rear end of the leather cup shield 9b is a cuboid, the cuboid middle of the rear end of the leather cup shield 9b is a cuboid cavity, the round hole is uniformly distributed in the middle of the cuboid is communicated with the cuboid cavity, the middle section of the leather cup shield 9b is a cylinder, the middle section is a circular shield, the middle section is a cuboid cavity at the front end of the cuboid cavity is a cuboid cavity, and the front end of the middle section is communicated with the front end of the cuboid cavity is a round hole at the front end of the cup shield 9b is.
In fig. 16 and 17, the left side of the shell 10 is a horizontal small cylinder 10a, the middle is a square body 10b, the right side is a horizontal large cylinder 10c, the front end is a kidney-shaped body 10d, the left side cylinder 10a, the middle square body 10b and the right side cylinder 10c are connected with the front end kidney-shaped body 10d into a whole, the left side cylinder 10a is internally provided with a horizontal cylinder cavity 10e, the middle square body is internally provided with a square cavity 10f, the right side cylinder is internally provided with a horizontal cylinder cavity 10h, the front end kidney-shaped body is internally provided with a kidney-shaped cavity 10g, the left side cylinder cavity 10e, the middle square cavity 10f, the right side cylinder cavity 10h and the front end kidney-shaped cavity 10g are communicated, the middle square cavity 10f is separated from the right side cylinder cavity 10h and is not communicated, the purpose of separation is to protect a motor, the worm wheel rotation is prevented from exceeding the limit impact motor damage caused by the fault of a control or a position sensor, the middle square body 10b is vertically provided with a cylinder 10j, the middle of the vertical cylinder 10j is provided with a cylindrical through hole 10k, the periphery of the vertical cylinder 10j is communicated with a directional cavity 10f by six screw holes which are uniformly distributed, the upper end of the shell 10 is provided with four cylindrical bosses 10q, the middle of the cylindrical bosses 10q is provided with a threaded hole, the outer side of the front waist-shaped body 10d is uniformly distributed with ten cylinders 10w, the middle of the ten cylinders 10w is provided with a threaded hole, the left side of the front waist-shaped body 10d is provided with a rhombus 10r, the middle of the rhombus 10r is provided with a cylindrical hole 10, the cylindrical hole 10t forms a leather cup butt joint, the cylindrical hole 10t is communicated with the front waist-shaped cavity 10g, a small Fang Xingti y for fixedly connecting the first socket 8 is arranged below the rhombus 10r at the left side of the front waist-shaped body 10d, the front end of the small Fang Xingti y is provided with a cylinder 10p, the middle of the small square body 10y is provided with a cylindrical through hole 10s, the small Fang Xingti y is provided with a threaded hole, the cylindrical through hole 10s is communicated with the front waist-shaped cavity 10g, the left side of the cylinder 10a is provided with a small cylinder 10z, the middle of the small cylinder 10z is provided with a threaded hole, the middle of the bottom of the shell 10 is provided with a vertical cylinder boss 10x, the middle of the cylinder boss 10x is provided with a circular through hole 10m, the circular through hole 10m is formed into a lower mounting hole, the circular through hole 10m is communicated with a square cavity 10f, four small cylinder bosses 10n are arranged around the cylinder boss 10x, the middle of the small cylinder boss 10n is provided with a threaded hole, the rear end of the kidney-shaped cavity 10g is provided with eight unevenly distributed threaded holes for connecting and fixing the bearing mounting plate 6, the rear end of the kidney-shaped cavity 10g is provided with a square wiring groove 10V, the square wiring groove is used for wiring a wire at the front end of a motor and a wire of a position sensor to a first socket, the square wiring groove 10V is provided with a wire threading hole 10i for wiring the position sensor, the upper end of the left side of the kidney-shaped cavity 10d is provided with a cylinder boss 10u, the middle of the cylinder boss 10u is provided with a fuel filling hole for installing a blocking cap, the fuel filling hole is provided with a threaded hole, the fuel filling hole is communicated with the front end kidney-shaped cavity 10g, and the upper end of the cylinder boss 10u is provided with a circular sealing groove.
In fig. 18 and 19, the upper part of the bearing cover 11 is provided with a circular boss 11a, a protruding cylinder 11b is arranged below the circular boss 11a, a circle of mounting holes are formed in the protruding cylinder 11b, a cylinder boss 11c is arranged below the protruding cylinder 11b, a circular groove 11d for positioning a second bearing 3d of the output shaft assembly is arranged in the middle of the lower cylinder boss 11c, a circular hole 11e is arranged above the circular groove 11d, a cylindrical groove 11f is arranged above the circular hole 11e, the circular hole 11e and the cylindrical groove 11f form a positioning space for positioning the position sensor 2, a square groove 11g is arranged on the left side of the lower cylinder boss 11c, an inclined cylinder hole 11h inclined to the right of the 11g is formed in the square groove, the inclined cylinder hole 11h is communicated with the upper cylinder groove 11f, a fan-shaped boss 11j which is in contact with a worm gear for mechanical limiting output is arranged below the lower cylinder boss 11c, the square groove and the circular boss is used for threading of the position sensor when the square groove and the inclined cylinder hole are used for positioning the output shaft assembly, the fan-shaped boss is used for preventing the output shaft from rotating, the position sensor from being positioned in the position when the output shaft is in the circular groove 11d is positioned in the second bearing 3d.
In fig. 20, the primary duplex gear assembly 13 includes a primary large gear 13a, a secondary small gear 13b, a first bearing 13c, and a second bearing 13d, wherein the secondary small gear 13b is placed on a middle side cylindrical surface of the primary large gear 13a, the first bearing 13c is placed on a front end cylindrical surface of the primary large gear 13a, and the second bearing 13d is placed on a rear end cylindrical surface of the primary large gear 13 a.
In fig. 21, the secondary double gear assembly 14 includes a secondary large gear 14a, a tertiary small gear 14b, a third bearing one 14c, and a fourth bearing one 14d, the tertiary small gear 14b is placed on a middle side cylindrical surface of the secondary large gear 14a, the third bearing one 14c is placed on a front end cylindrical surface of the secondary large gear 14a, and the fourth bearing one 14d is placed on a rear end cylindrical surface of the secondary large gear 14 a.
In fig. 22, the three-stage double gear assembly 15 includes a three-stage large gear 15a, a four-stage small gear 15b, a fifth bearing 15c, and a sixth bearing 15d, the four-stage small gear 15b is placed on the middle side cylindrical surface of the three-stage large gear 15a, the fifth bearing 15c is placed on the left side cylindrical surface of the three-stage large gear 15a, and the sixth bearing 15d is placed on the right side cylindrical surface of the three-stage large gear 15 a.
In fig. 23, the cable assembly 16 includes a first plug 16a, a second plug 16b, and a vulcanization cable 16c, the first plug 16a is below the vulcanization cable 16c, the first plug 16a is connected to the vulcanization cable 16c at 90 °, the second plug 16b is above the vulcanization cable 16c, the second plug 16b is connected to the vulcanization cable 16c at 90 °, the first plug 16a and the second plug 16b are spatially staggered at 90 °, and the first plug 16a and the second plug 16b are communicated through the vulcanization cable 16c to form a loop.
In fig. 24 and 25, the cap 17 includes a cap 17a and a third seal ring 17b, the upper end of the cap 17a has a cylinder, the middle of the upper cylinder has a hexagonal groove, the lower part of the upper cylinder has an external thread cylinder, the middle of the external thread cylinder and the upper cylinder has an annular groove, and the third seal ring 17b is placed in the annular groove of the cap 17 a.
The using method comprises the following steps: firstly, the plugging cap 17 is opened, hydraulic oil is filled into the shell 10 and the leather cup, hydraulic oil can enter the space between the bearing mounting plate 6 and the side plate 7, namely, the second accommodating cavity, the motor mounting cavity, the inside of the motor 1, the worm gear mounting cavity in the shell, the sensor cavity at the mounting position of the output shaft in the shell and the inside of the leather cup. The front end, the rear end and the middle of the motor are provided with through holes, oil can enter the motor, and the through holes allow the inside of the motor to be fully filled with oil. The oil filling device comprises a shell, a rubber cup, a control assembly 5, a cable assembly 16, a valve rod and an output shaft 3a, wherein the oil filling cavity is filled with oil, the oil filling quantity of the oil is calculated on the basis of the volumes of the shell and the rubber cup, the oil quantity of the oil is 0.9+/-0.2 liter of capacity, in the process of filling hydraulic oil, the rubber cup 9a is pressed to discharge redundant air through an oil filling hole, the rubber cup is pressed to help the oil to discharge air in the cavity, whether the deformation function of the rubber cup is normal or not and the sealing performance of the rubber cup are checked through pressing, when the shell 10 and the rubber cup are filled with hydraulic oil, the hydraulic oil is kept still (the standing time is 0.5-3 days), after the standing is finished, the rubber cup 9a is pressed to discharge redundant air through the oil filling hole, the cap 17 is mounted and sealed on the shell 10 after the exhausting is finished, the control assembly 5 is mounted above the shell 10, the cable assembly 16 is connected with the control assembly 5 and the first socket 8, and the valve rod is connected with the output shaft 3 a.
When the valve is required to be opened, a valve opening instruction is transmitted to the control assembly 5 through the third socket 5e, the control assembly 5 drives the motor 1 to work positively, high-rotation-speed low-torque power of the motor 1 is converted into low-rotation-speed high-torque output torque through the transmission assembly and the worm gear, torque is transmitted to the valve rod through the output shaft 3a, the valve is opened, the position sensor 2 detects that rotation position information of the output shaft 3a is transmitted to the control assembly 5 through the position information feedback loop, when the control assembly 5 judges that the rotation position information of the output shaft 3a is in a valve opening state, the motor is controlled by the motor power supply control loop to cut off, in the external environment submergence process from sea, external sea water pressure is increased, sea water pressure is transmitted to the leather cup 9a, internal oil is reduced in volume in the pressure increasing process, the leather cup 9a is deformed inwards, the internal volume of the leather cup 9a is reduced, the volume of the compensation oil is reduced, the internal and external pressure difference is kept smaller, the shell and the sealing element are equivalent to low-pressure sealing cost, and reliability is high.
When the valve is required to be closed, a valve closing instruction is transmitted to the control assembly 5 through the third socket 5e, the control assembly 5 drives the motor 1 to work reversely, high-rotation-speed low-torque power of the motor 1 is converted into low-rotation-speed high-torque output torque through the transmission assembly and the worm gear, the torque is transmitted to the valve rod of the valve through the output shaft, the valve is closed, the position sensor 2 detects that the rotation position information of the output shaft 3a is transmitted to the control assembly 5 through the position information feedback loop, when the control assembly 5 judges that the rotation position information of the output shaft 3a is in a valve closing state, the motor is controlled by the motor power supply control loop to control the motor to be powered off, in the process of rising the sea from the deep sea in the external environment, the external sea water pressure is reduced, the sea water pressure reduction change is transmitted to the motor 9a, the volume of internal oil is increased in the process of reducing the pressure, the cup 9a is deformed outwards, the internal volume of the cup 9a is increased, the volume of the oil is compensated, and the pressure difference between the internal and external pressure is kept to be smaller.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411563481.7A CN119467816B (en) | 2024-11-05 | 2024-11-05 | A pressure-compensating electric actuator for deep-sea high-pressure valves on ships |
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| CN202411563481.7A CN119467816B (en) | 2024-11-05 | 2024-11-05 | A pressure-compensating electric actuator for deep-sea high-pressure valves on ships |
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| CN223203813U (en) * | 2024-11-05 | 2025-08-08 | 襄阳航力机电技术发展有限公司 | Electric actuating mechanism of ship deep sea high-pressure valve |
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| US11156295B2 (en) * | 2015-09-11 | 2021-10-26 | Pressure Biosciences, Inc. | Ultrahigh pressure compact valve with throttling capability |
| GB2627648A (en) * | 2021-12-02 | 2024-08-28 | Onesubsea Ip Uk Ltd | Subsea valve actuator |
| CN217260679U (en) * | 2022-05-12 | 2022-08-23 | 襄阳航力机电技术发展有限公司 | Electric speed reducing mechanism used in aviation fuel tank |
| KR102843026B1 (en) * | 2022-08-29 | 2025-08-11 | 주식회사 아모텍 | Pinion Gear Unit and Swivel Actuator Using the Same |
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| CN223203813U (en) * | 2024-11-05 | 2025-08-08 | 襄阳航力机电技术发展有限公司 | Electric actuating mechanism of ship deep sea high-pressure valve |
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