CN212106408U - An intelligent control energy-saving hydraulic station - Google Patents

Abstract

The utility model provides an intelligent control type energy-saving hydraulic station, which is arranged in the technical field of hydraulic stations; the hydraulic control system comprises a liquid supply assembly, a hydraulic control assembly and an air cooling assembly, wherein the liquid supply assembly comprises an oil storage tank, an oil pump, an oil injector and a motor; the hydraulic control assembly comprises an electrical control box, a controller, a pressure transmitter connected with the oil pump, a pressure gauge connected with the pressure transmitter, an electromagnetic directional valve connected with the pressure transmitter through an oil way and a frequency converter electrically connected with the pressure transmitter; the electric control box is connected with the oil pump, and the controller is respectively connected with the electromagnetic directional valve and the oil pump. The utility model discloses can supply with the demand of hydraulic oil according to real-time pressure state automatic adjustment oil pump, shorten function response time for the power supply motor of oil pump reaches reliable energy-conserving effect, and avoids the hydraulic oil high temperature through the forced air cooling subassembly of hydraulic oil, has improved stationarity and precision in the operation, has improved its life.

Description

An intelligent control energy-saving hydraulic station

technical field

The utility model relates to the technical field of hydraulic stations, in particular to an intelligent control type energy-saving hydraulic station.

Background technique

The hydraulic station is also known as the oil pump station. Its working principle is: the motor drives the oil pump to rotate, the pump sucks oil from the oil tank and pumps oil, and converts the mechanical energy into the pressure energy of the hydraulic oil. The hydraulic oil is realized by the hydraulic valve through the integrated block (or valve combination). After the direction, pressure and flow are adjusted, they are transmitted to the cylinder or oil motor of the hydraulic machine through the external pipeline, so as to control the change of the direction of the hydraulic machine, the magnitude of the force and the speed of the speed, and promote various hydraulic machines to do work, while the hydraulic pressure used in production is controlled. Gear drives often require power transmission through a hydraulic tank.

At present, most of the hydraulic stations on the market use variable frequency motors, ordinary oil pumps, pressure transmitters and control cabinets. This type of hydraulic station configuration can also achieve energy-saving effects, but the energy-saving effects achieved are not good. The driving device is in a changing load state during the operation process, while the oil pump provides a constant flow at a constant speed. The pressure and flow required during operation are adjusted by the pressure proportional valve and the flow proportional valve, which can adjust the state of the single machine in time. , but still can not solve the problem of a large amount of power loss during the operation of the hydraulic station. In addition, in actual use, the temperature of the hydraulic oil is usually too high, resulting in a lower viscosity of the hydraulic oil, resulting in unstable production performance of the drive device and excessive internal leakage.

Utility model content

In order to solve the above technical problems, the utility model provides an intelligent control type energy-saving hydraulic station, which can automatically adjust the demand of the oil pump to supply hydraulic oil according to the real-time pressure state, shorten the operation response time, and make the power source motor of the oil pump achieve reliable energy saving. The hydraulic oil cooling device prevents the hydraulic oil temperature from being too high, improves the stability and accuracy during operation, and prolongs its service life.

The utility model provides the following technical solutions, an intelligent control type energy-saving hydraulic station, including a liquid supply component, a hydraulic control component and an air cooling component, and the hydraulic oil passes through the liquid supply component, the hydraulic control component, the execution device and all the components in sequence. The air-cooled component is returned to the liquid supply component to form a hydraulic oil circulation circuit.

Preferably, the liquid supply assembly includes an oil storage tank, an oil pump arranged at the oil outlet of the oil storage tank, an oil injector arranged at the oil inlet of the oil storage tank, and a motor that drives the oil pump to run. This structure realizes that hydraulic oil is drawn out from the oil storage tank to be used by the actuator.

Preferably, the hydraulic control assembly includes an electrical control box located outside the oil storage tank, a controller located on the motor, a pressure transmitter connected to the oil pump, and a pressure transmitter connected to the pressure transmitter. a pressure gauge, an electromagnetic reversing valve connected to the pressure transmitter through an oil circuit, and a frequency converter electrically connected to the pressure transmitter; the electrical control box is connected to the oil pump, and the controller They are respectively connected with the electromagnetic reversing valve and the oil pump. The structural design can automatically adjust the demand for hydraulic oil supplied by the oil pump according to the real-time pressure state, shorten the operation response time, make the power source motor of the oil pump achieve reliable energy-saving effect, and effectively suppress the effect of energy waste.

Preferably, the hydraulic control assembly further includes an oil temperature and oil level gauge disposed on the side of the oil storage tank; the oil temperature and oil level gauge is electrically connected to the controller. The structure is designed to monitor the temperature and oil quantity of the hydraulic oil in the oil storage tank in real time and feed back to the controller in time.

Preferably, the oil pump draws out the hydraulic oil from the oil storage tank through an oil pipe, one end of the oil pipe is inserted into the oil pump, and the other end of the oil pipe is connected with an oil suction filter, and extends into the hydraulic oil in the oil storage tank. . This structure is designed to filter impurities of the hydraulic oil in the oil storage tank.

Preferably, the air-cooling assembly comprises a condenser arranged on the oil storage tank, two oil guide pipes communicating with the inlet and outlet of the condenser, and a fan arranged on one side of the condenser; The oil guide pipes are respectively communicated with the oil pump and the oil storage tank. The structural design avoids the phenomenon of excessive temperature of the hydraulic oil, prevents the viscosity of the hydraulic oil from becoming low, which leads to unstable production performance and excessive internal leakage of the actuator, and improves the stability and efficiency of the actuator during operation. precision.

Preferably, the structure of the oil pump is an internal gear meshing pump. This structure adopts the effects of low starting speed, small internal leakage and low noise of the oil pump.

Preferably, the motor adopts an AC permanent magnet synchronous motor. The adoption of this structure enables the motor to have the characteristics of small rotational inertia and fast response speed.

Preferably, the bottom of the intelligent control type energy-saving hydraulic station is provided with a moving frame. The structural design has the function of carrying the intelligently controlled energy-saving hydraulic station and can be easily moved.

The beneficial effect of the utility model is that the traditional hydraulic station has the following characteristics:

1. Data collection is carried out on the pressure of the oil inlet circuit through the pressure transmitter, and temperature data collection is carried out on the hydraulic oil returning to the oil tank through the oil temperature and oil level gauge, and the collected pressure data and temperature data are fed back To the controller, the controller processes the detected and collected data, and transmits it to the motor, so that the flow rate of the oil pump is adjusted by the motor, and the hydraulic pressure of the circuit is changed by the flow rate. The structural design realizes real-time transmission of the data collected by the pressure transmitter and the oil temperature and oil level gauge, and the oil pump connected to the motor is adjusted according to the received data to achieve the dynamic balance of the hydraulic output, As a result, the pressure in the hydraulic circuit and the ideal hydraulic value can be dynamically balanced, avoiding the fact that the existing motor cannot be adjusted in real time, and the oil pump has been driven to rotate at the rated speed, resulting in unnecessary power loss, thereby improving the working efficiency and reliability of the hydraulic station. properties, while increasing the service life.

2. The condenser is used to communicate with the oil pump and the oil storage tank respectively through the two oil guide pipes, and the fan is arranged on one side of the condenser. The structural design effectively improves the cooling effect of the hydraulic oil, avoids the phenomenon that the temperature of the hydraulic oil is too high, and prevents the viscosity of the hydraulic oil from decreasing, which leads to unstable production performance and excessive internal leakage of the actuator, and improves the performance of the hydraulic oil. Describe the stability and accuracy of the actuator in operation.

3. Adopt the oil pump whose structure is an internal gear meshing pump, and the AC permanent magnet synchronous motor. Among them, the AC permanent magnet synchronous motor is half the volume of the induction asynchronous motor, which makes the entire hydraulic station small in space, compact in structure, low in energy saving and loss, and the entire hydraulic station system is quiet when the speed is low. The oil is close to the working environment temperature, energy saving and environmental protection. In addition, the oil pump used in the utility model is ultra-quiet, durable and has strong pressure-holding performance.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the intelligent control type energy-saving hydraulic station described in the utility model;

Fig. 2 is the partial exploded schematic diagram of the intelligent control type energy-saving hydraulic station according to the utility model;

Fig. 3 is another perspective schematic diagram of the intelligent control type energy-saving hydraulic station according to the present invention;

Fig. 4 is the hydraulic control principle diagram of the intelligent control type energy-saving hydraulic station according to the utility model;

Description of reference numerals: 10-liquid supply assembly, 11-oil storage tank, 12-oil pump, 13-oil injector, 14-motor, 15-oil suction filter, 20-hydraulic control assembly, 21-electrical control box, 22-control 23-pressure transmitter, 24-pressure gauge, 25-electromagnetic commutator, 26-frequency converter, 27-oil temperature and oil level gauge, 30-air cooling component, 31-condenser, 32-oil guide pipe, 33 - Fan.

Detailed ways

In order to make the invention purpose, technical scheme and technical effect of the present utility model clearer, the present utility model will be further described below with reference to the specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

Referring to Figures 1 and 2, an intelligently controlled energy-saving hydraulic station includes a liquid supply assembly 10, a hydraulic control assembly 20 and an air cooling assembly 30. The hydraulic oil passes through the liquid supply assembly 10 and the hydraulic control assembly in sequence. 20. The actuator and the air cooling assembly 30, and then return to the liquid supply assembly 10 to form a hydraulic oil circulation circuit. In this embodiment, the liquid supply assembly 10 includes an oil storage tank 11 , an oil pump 12 disposed at the oil outlet of the oil storage tank, an oil injector 13 disposed at the oil inlet of the oil storage tank, and a motor 14 that drives the oil pump 12 to operate . Preferably, the oil pump 12 draws out the hydraulic oil from the oil storage tank 11 through an oil pipe, one end of the oil pipe is inserted into the oil pump 12 , and the other end of the oil pipe is connected with an oil suction filter 15 and extends into the oil storage tank 11 In the hydraulic oil; wherein, the oil suction filter 15 is provided to filter impurities in the hydraulic oil in the oil storage tank 11, preventing impurities from flowing into the actuator through the oil pump 12, and ensuring the stability of the energy-saving hydraulic station run. The execution device involved in the present invention is a power device of an external device, and its structure is not described one by one because it is not related to the technical point protected by the present invention.

Further, in this embodiment, the motor 14 and the oil pump 12 are installed on the upper cover of the oil storage tank 11 in a horizontal arrangement, so that the energy-saving hydraulic station has a small overall volume and a compact structure. In addition, the motor 14 and the oil pump 12 are driven by involute splines, which enhances the load-bearing attachment force and prolongs the life of the motor 14 and the oil pump 12. At the same time, the involute spline drive does not generate radial thrust. , reduce heat and power consumption, and achieve the effect of saving energy.

Further, the structure of the oil pump 12 is an internal gear meshing pump. The oil pump 12 with this structure can reduce leakage, and the hydraulic control assembly 20 can be used to directly control the motor 14. According to this energy-saving hydraulic station system The oil pump 12 can be adjusted according to the flow pressure required by the work to directly output the corresponding power, thereby reducing energy consumption and redundant power consumption. In addition, the structure adopts the effects of low starting speed, small internal leakage and low noise of the oil pump 12 .

Further, the motor 14 adopts an AC permanent magnet synchronous motor. The utility model adopts the AC permanent magnet synchronous motor as the power source, does not need the excitation coil or the excitation current, and has high efficiency, so that the rotational inertia is small and the response speed is fast. In addition, the AC permanent magnet synchronous motor is half the volume of the induction asynchronous motor, which makes the entire hydraulic station small in space, compact in structure, low in energy saving and loss, and the entire hydraulic station system is quiet at low speed. When working, the hydraulic oil is close to Working environment temperature, energy saving and environmental protection.

Further, the bottom of the intelligent control type energy-saving hydraulic station is provided with a moving frame. Through the arrangement of the moving frame, the utility model has the function of carrying the intelligent control type energy-saving hydraulic station, and can be easily moved.

Referring to FIG. 3 , the hydraulic control assembly 20 includes an electrical control box 21 disposed outside the oil storage tank 11 , a controller 22 disposed on the motor 14 , and a pressure transmitter connected to the oil pump 12 . 23. The pressure gauge 24 connected with the pressure transmitter, the electromagnetic reversing valve 25 connected with the pressure transmitter 23 through the oil circuit, and the frequency converter 26 electrically connected with the pressure transmitter 23; the The electrical control box 21 is connected to the oil pump 12 , and the controller 22 is connected to the electromagnetic reversing valve 25 and the oil pump 12 respectively. The structural design can automatically adjust the demand for hydraulic oil supplied by the oil pump according to the real-time pressure state, shorten the operation response time, make the power source motor of the oil pump achieve reliable energy-saving effect, and effectively suppress the effect of energy waste. Specifically, the controller 22 receives the pressure data monitored by the pressure transmitter 23 in real time, and adjusts the operation speed of the motor 14 in real time, so that the operation of the energy-saving hydraulic station is more reasonable, and the effect of saving electricity is achieved; The setting of the pressure gauge 24 enables real-time display of current pressure data and real-time control of the pressure during operation; the electrical control box 21 is the electrical circuit connection collection of the entire energy-saving hydraulic station, ensuring that the circuit is clean and beautiful, and a separate control box The structure of the hydraulic station is simple, and the electric circuit is not easy to make mistakes.

Further, the hydraulic control assembly 20 further includes an oil temperature and oil level gauge 27 disposed on the side of the oil storage tank 11 ; the oil temperature and oil level gauge 27 is electrically connected to the controller 22 . This structure is designed to monitor the temperature and oil volume of the hydraulic oil in the oil storage tank 11 in real time and feed it back to the electrical control box 21 in time, so that the hydraulic components are not prone to local failures and improve the performance and life of the energy-saving hydraulic station.

Referring to FIG. 4 , the operating mechanism of the hydraulic control assembly 20 is as follows: the pressure transmitter 23 is used to collect data on the pressure of the oil inlet circuit, and the oil temperature and oil level gauge 27 is used to return the pressure to the oil tank. The temperature data of the hydraulic oil is collected, and the collected pressure data and temperature data are fed back to the controller 22. After the controller 22 processes the data collected by the detection, it is sent to the motor 14, so as to pass the The motor 14 is used to adjust the flow of the oil pump 12, and the hydraulic pressure of the circuit is changed through the flow. The hydraulic control assembly 20 realizes real-time transmission of the data collected by the pressure transmitter 23 and the oil temperature and oil level gauge 24, and the oil pump 12 connected to the motor 14 is adjusted according to the received data, The dynamic balance of the hydraulic output is achieved, resulting in the dynamic balance between the pressure in the hydraulic circuit and the ideal hydraulic value; the technical effect achieved is to avoid the fact that the existing motor cannot be adjusted in real time, and the oil pump has been driven at the rated speed to rotate, resulting in unnecessary unnecessary The power loss occurs, thereby improving the working efficiency and reliability of the hydraulic station, and at the same time increasing the service life.

Referring to FIG. 3 , the air-cooling assembly 30 includes a condenser 31 disposed on the oil storage tank 11 , two oil guide pipes 32 communicating with the inlet and outlet of the condenser, and a fan disposed on one side of the condenser 31 . 33; the condenser 31 is communicated with the oil pump 12 and the oil storage tank 11 through the two oil guide pipes 32, respectively. The setting of the air-cooling assembly 30 can prevent the hydraulic oil from being overheated, prevent the viscosity of the hydraulic oil from becoming low, and prevent the production performance of the execution device from being unstable and excessive internal leakage. Stability and precision in the operation of the device.

The above content is a further detailed description of the present invention in conjunction with the specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, on the premise of not departing from the concept of the present invention, its architectural form can be flexible and changeable, and a series of products can be derived. Just making some simple deductions or substitutions should be regarded as belonging to the scope of patent protection of the present invention determined by the submitted claims.

Claims (7)

1. An intelligent control type energy-saving hydraulic station comprises a liquid supply assembly, a hydraulic control assembly and an air cooling assembly, wherein hydraulic oil sequentially passes through the liquid supply assembly, the hydraulic control assembly, an executing device and the air cooling assembly and then returns to the liquid supply assembly to form a hydraulic oil circulation loop; the method is characterized in that: the liquid supply assembly comprises an oil storage tank, an oil pump arranged at an oil outlet of the oil storage tank, an oil injector arranged at an oil inlet of the oil storage tank and a motor driving the oil pump to operate;

the hydraulic control assembly comprises an electric control box arranged on the outer side of the oil storage box, a controller arranged on the motor, a pressure transmitter connected with the oil pump, a pressure gauge connected with the pressure transmitter, an electromagnetic directional valve connected with the pressure transmitter through an oil way and a frequency converter electrically connected with the pressure transmitter; the electric control box is connected with the oil pump, and the controller is respectively connected with the electromagnetic directional valve and the oil pump.

2. The intelligent control type energy-saving hydraulic station as claimed in claim 1, wherein: the hydraulic control assembly further comprises an oil temperature and oil level meter arranged on the side surface of the oil storage tank; the oil temperature and oil level meter is electrically connected with the controller.

3. The intelligent control type energy-saving hydraulic station as claimed in claim 1, wherein: the oil pump is followed hydraulic oil through an oil pipe the batch oil tank is taken out, and the one end of this oil pipe is inserted the oil pump, and its other end is connected with one and inhales oily filter, and stretches into in the hydraulic oil in the batch oil tank.

4. The intelligent control type energy-saving hydraulic station as claimed in claim 1, wherein: the air cooling assembly comprises a condenser arranged on the oil storage tank, two oil guide pipes communicated with an inlet and an outlet of the condenser and a fan arranged on one side of the condenser; the condenser is respectively communicated with the oil pump and the oil storage tank through the two oil guide pipes.

5. The intelligent control type energy-saving hydraulic station as claimed in claim 1, wherein: the oil pump is structurally an internal gear meshing pump.

6. The intelligent control type energy-saving hydraulic station as claimed in claim 1, wherein: the motor adopts an alternating current permanent magnet synchronous motor.

7. The intelligent control type energy-saving hydraulic station as claimed in claim 1, wherein: the bottom of the intelligent control type energy-saving hydraulic station is provided with a movable frame.

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