CN116146567A - Sectional split type piston shaft transmission booster cylinder - Google Patents

Abstract

The invention relates to a segmented split piston shaft drive booster cylinder, which comprises a left oil cylinder, a booster chamber cylinder and a right oil cylinder; the left oil cylinder is provided with a left cylinder piston; the booster chamber cylinder is provided with a booster chamber piston ; The right oil cylinder is provided with a right oil cylinder piston; the primary pressurization chamber partition is provided with two ends respectively extending into the first piston shaft in the left isolation chamber and the primary pressurization chamber, and one end extending into the left isolation chamber is connected with the left The oil cylinder piston is connected, and one end extending into the primary boosting chamber is in contact with the piston of the boosting chamber; the separator of the secondary boosting chamber is provided with a second piston extending into the secondary boosting chamber and the right isolation chamber at both ends. Shaft, one end extending into the right isolation cavity is connected with the right oil cylinder piston, and one end extending into the secondary boosting cavity is in contact with the boosting cavity piston. The invention can effectively solve the problems of easy damage to the piston and the piston shaft, difficulty in installation and disassembly, processing deformation, and high cost of use of the booster cylinder by designing the piston and the piston shaft in the booster cylinder in sections.

Description

A segmented split type piston shaft drive booster cylinder

technical field

The invention belongs to the technical field of booster cylinders, in particular to a segmented split type piston shaft drive booster cylinder.

Background technique

The high-pressure pressurization of fluid medium is mostly completed by multi-stage pressurization structure. At present, the booster unit of conventional equipment is mostly a single multi-stage booster cylinder or multiple single-stage booster cylinders connected in series, both of which use the hydraulic pump as the power source to drive the reciprocating booster cylinder driven by hydraulic oil. The booster cylinder requires multiple sets of cylinders and multiple pistons to be installed coaxially on the piston shaft. The hydraulic oil pushes the piston to alternately and reciprocally bear force along the axial direction of the piston shaft, driving the periodic reciprocating motion of the gas piston to realize the gas medium. The volume changes to achieve the purpose of supercharging.

Conventional single multi-stage booster cylinders generally use double-acting oil cylinders, and the internal structure of a single cylinder can only achieve one-stage boosting. During the working process, both the oil piston and the air piston will exert axial tension and pressure on the piston shaft. , this periodic stress makes the mechanical properties of the piston shaft body and the connection between the piston and the shaft significantly attenuated, and the mechanical damage of the piston and the piston shaft is prone to occur, and since multiple sets of pistons need to be installed on one shaft, the length of the shaft is required If it is too long, it is difficult to install and disassemble it, and it is prone to problems such as bending and deformation during shaft processing.

Conventional multiple single-stage booster cylinders are connected in series, requiring multiple sets of power hydraulic oil input units. Adding one stage of compression requires adding a set of hydraulic station units. In order to achieve the same working capacity as a single multi-stage booster cylinder, the body needs more Mechanical parts, high cost, poor economy.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a segmented and split piston shaft drive booster cylinder, which can effectively solve the problem of the piston and piston shaft being easily damaged by dividing the piston and the piston shaft in the booster cylinder into separate parts. Damage, difficult installation and disassembly, processing deformation, and high cost of booster cylinders.

In order to achieve the above object, technical scheme of the present invention is:

A segmented split piston shaft drive booster cylinder, comprising a left oil cylinder, a booster chamber cylinder and a right oil cylinder connected in sequence from left to right; the left oil cylinder connects with the booster chamber cylinder through a primary booster communicated, the cylinder barrel of the pressurized chamber communicates with the right oil cylinder through the partition of the secondary pressurized chamber;

The left oil cylinder is provided with a left oil cylinder piston that divides its cavity into a left power chamber and a left isolation cavity; The pressurized chamber piston of the chamber; the right cylinder piston is provided in the right cylinder to separate the chamber into a right isolation chamber and a right power chamber;

The first piston shaft extending into the left isolation chamber and the primary booster chamber at both ends is straddled in the through hole of the partition plate of the primary booster chamber, and the end extending into the left isolation chamber is threadedly connected with the piston of the left oil cylinder. , one end extending into the primary booster chamber, under the action of power drive, contacts with the piston of the booster chamber, and pushes the piston of the booster chamber to move to the right;

The second piston shaft extending into the secondary boosting chamber and the right isolation chamber at both ends is straddled in the through hole of the partition plate of the secondary boosting chamber. Threaded connection, one end extending into the secondary pressurization chamber, under the action of power drive, contacts with the piston of the pressurization chamber, and pushes the piston of the pressurization chamber to move to the left.

In the above-mentioned segmented split type piston shaft drive pressurized cylinder, a left oil chamber partition is provided on the left side of the left oil cylinder; a left displacement magnetic scale is axially straddled in the center hole of the left oil chamber partition, There is a left hydraulic oil inlet and outlet connected to the left power chamber on the top, and a left cylinder piston buffer groove for slowing down the left cylinder piston impulse is opened on the right side;

The inlet and outlet of the left hydraulic oil are connected with the hydraulic oil system through the oil pipeline; the electronic compartment of the left displacement magnetic scale is exposed on the left side of the left oil chamber partition, and the detection rod extends into the left oil cylinder and passes through the left oil cylinder piston , extending into the blind hole opened at the center of the first piston shaft;

The left oil piston buffer check valve and the left oil piston buffer damper are arranged side by side in the buffer groove of the left oil cylinder piston; the left oil piston buffer check valve and the left oil piston buffer damper are respectively connected with the left hydraulic oil inlet and outlet .

In the above-mentioned segmented split piston shaft drive booster cylinder, the top and bottom of the primary booster chamber partition are respectively provided with an inlet port of the primary booster chamber and an outlet port of the primary booster chamber, which communicate with the primary booster chamber. Air port; the inlet of the primary booster chamber is provided with a check valve for the intake of the primary booster chamber, and the outlet of the primary booster chamber is provided with a check valve for the outlet of the primary booster chamber;

The gas medium enters the primary pressurization chamber through the inlet check valve of the primary pressurization chamber for primary pressurization. After the primary pressurization is completed, the gas medium is discharged through the outlet check valve of the primary pressurization chamber.

In the above-mentioned segmented split type piston shaft drive pressurized cylinder, the top and bottom of the partition plate of the secondary pressurized chamber are respectively provided with an air inlet of the secondary pressurized chamber and a secondary The gas outlet of the booster chamber; the inlet of the secondary booster chamber is provided with a secondary booster chamber inlet check valve, and the outlet of the secondary booster chamber is provided with a secondary booster chamber outlet check valve;

The outlet check valve of the primary pressurization chamber communicates with the intake check valve of the secondary pressurization chamber through the exhaust pipe; when the gas medium in the primary pressurization chamber is squeezed, the outlet check valve of the primary pressurization chamber opens , the gas medium passes through the exhaust pipe and enters the secondary pressurization chamber through the intake check valve of the secondary pressurization chamber for secondary pressurization.

In the above-mentioned segmented split piston shaft drive pressurized cylinder, a right oil chamber partition is arranged on the right side of the right oil cylinder; a right displacement magnetic scale is arranged axially across the central hole of the right oil chamber partition, There is a right hydraulic oil inlet and outlet connected to the right power chamber on the top, and a right cylinder piston buffer groove for slowing down the right cylinder piston impulse is opened on the left side;

The inlet and outlet of the right hydraulic oil are connected to the hydraulic oil system through the oil pipeline; the electronic compartment of the right displacement magnetic scale is exposed on the right side of the right oil chamber partition, and the detection rod extends into the right oil cylinder and passes through the right oil cylinder piston , extending into the blind hole opened at the center of the second piston shaft;

The right oil piston buffer check valve and the right oil piston buffer damper are arranged side by side in the buffer groove of the right oil cylinder piston; the right oil piston buffer check valve and the right oil piston buffer damper are respectively connected with the right hydraulic oil inlet and outlet .

In the above-mentioned segmented split type piston shaft drive pressurized cylinder, the end of the first piston shaft connected to the left cylinder piston is provided with a left displacement induction magnet, which is used in conjunction with the left displacement magnetic ruler to monitor the left cylinder piston The moving position of the second piston shaft; the end of the second piston shaft connected to the right oil cylinder piston is provided with a right displacement induction magnet, which is used in conjunction with the right displacement magnetic ruler to monitor the movement position of the right oil cylinder piston.

In the above-mentioned segmented split type piston shaft drive pressurized cylinder, the outer diameter of the left oil cylinder piston is provided with a left oil piston seal in contact with the inner wall of the left oil cylinder; the outer diameter of the right oil cylinder piston is provided with The right oil piston seal that is in contact with the inner wall of the right oil cylinder; the outer diameter of the booster chamber piston is provided with a booster chamber piston seal that is in contact with the inner wall of the booster chamber cylinder.

In the above-mentioned segmented split type piston shaft drive booster cylinder, the through hole of the partition plate of the primary booster chamber is respectively provided with a left oil isolation seal and a first piston shaft seal in contact with the outer diameter of the first piston shaft. Parts; the second piston shaft seal and the right oil isolating seal that are in contact with the outer diameter of the second piston shaft are respectively provided in the through hole of the secondary pressurization chamber partition.

In the above-mentioned segmented split type piston shaft drive pressurized cylinder, the bottom of the primary booster chamber partition is respectively provided with a first fluid medium leakage discharge port and a first gas medium leakage discharge port; the first fluid medium The medium leakage discharge port communicates with the left isolation cavity; the first gas medium leakage discharge port is opened at the position between the left oil isolation seal and the first piston shaft seal;

The bottom of the partition of the secondary pressurization chamber is also provided with a second fluid medium leakage discharge port and a second gas medium leakage discharge port; the second fluid medium leakage discharge port communicates with the right isolation chamber; the second The gas medium leakage discharge port is opened at a position between the second piston shaft seal and the right oil isolation seal.

In the above-mentioned segmented split type piston shaft drive supercharging cylinder, the outer wall of the supercharging chamber cylinder is provided with a cooling water jacket for the supercharging chamber, and the top end of the supercharging chamber close to the partition plate of the primary supercharging chamber is provided with a cooling water jacket. The outlet has a cooling water inlet at the end close to the partition of the secondary pressurization chamber at the bottom; both the cooling water outlet and the cooling water inlet are connected with the water cooling system.

Technical effect and advantage of the present invention:

1. The invention provides a segmented split piston shaft drive booster cylinder. By combining the first piston shaft, the booster chamber piston and the second piston shaft in the booster cylinder with a segmented split design, the piston shaft It is independent from the piston and does not use threads, ferrules, etc. to connect. When the booster cylinder is working, the piston will not exert axial tension and pressure on the piston shaft. There is only compressive stress between the piston shaft and the piston, which can effectively The attenuation of the mechanical properties of the connection between the piston and the piston shaft and the mechanical damage of the piston and the piston shaft are avoided.

2. In the segmented split piston shaft drive booster cylinder provided by the present invention, since the first piston shaft, the booster chamber piston and the second piston shaft in the booster cylinder are combined in a segmented split design, the When the booster cylinder is assembled or disassembled, the first piston shaft, the booster chamber piston and the second piston shaft can be installed or disassembled separately, which can effectively improve the efficiency of installation and disassembly, and is convenient for installation and disassembly.

3. In the segmented split piston shaft drive booster cylinder provided by the present invention, since the first piston shaft, the booster chamber piston and the second piston shaft in the booster cylinder are combined in a segmented split design, the When the piston shaft is processed, the first piston shaft and the second piston shaft can be processed separately, which avoids the difficulty in positioning during the processing due to the excessive length of the piston shaft, poor thermal diffusivity, large linear expansion, and easy thermal deformation and two ends. The problem of bending deformation is easy to occur during fixed processing.

4. A segmented split piston shaft drive booster cylinder provided by the present invention can realize The shaft diameter adjustment of each section of the piston shaft in the same pressurized cylinder is different from the existing conventional design where the piston is installed on a long piston shaft. The invention obtains different The volume of the cylinder body, only need to adjust one of the piston shafts or two shafts at the same time to obtain a larger compression ratio, the adjustment limit of the piston shaft shaft diameter is small, the combination of piston shafts with different shaft diameters and the same or different cylinders, More volumes of different sizes can be obtained, and more changes in the volume ratio can be realized in the same booster cylinder; by adjusting the diameter of the piston shaft, two-stage compression can be set in one cylinder, and most booster cylinders with this structure can do Completely symmetrical structure, the booster cylinder operates more stably, and the stress on each component is more uniform.

5. In the segmented split type piston shaft drive pressurized cylinder provided by the present invention, the piston buffer groove of the left oil cylinder is set on the partition plate of the left oil chamber and the piston buffer groove of the right oil cylinder is opened on the partition plate of the right oil chamber. Oil piston buffer check valve and oil piston buffer damping are installed in the oil cylinder piston buffer groove and the right oil cylinder piston buffer groove, when the left oil cylinder piston or right oil cylinder piston moves to the left oil chamber partition and the right oil chamber partition, it can Make the pressurized cylinder more stable at the limit position of the cycle, and the reciprocating change is softer.

Description of drawings

Fig. 1 is a schematic structural view of the segmented split piston shaft drive booster cylinder of the present invention;

Fig. 2 is the schematic diagram of the compression system of the segmented split type piston shaft drive booster cylinder of the present invention;

Fig. 3 is a partially enlarged view of the segmented split piston shaft drive booster cylinder of the present invention;

Fig. 4 is a schematic diagram of the compression system of the segmented split piston shaft drive booster cylinder based on Embodiment 2 of the present invention;

Fig. 5 is a schematic diagram of the compression system of the segmented split piston shaft drive booster cylinder based on Embodiment 3 of the present invention;

Fig. 6 is a schematic diagram of the compression system of the segmented split piston shaft drive booster cylinder of the present invention based on Embodiment 4 of the present invention.

Labels in the figure: 1. Left oil chamber partition; 2. Left backup nut; 3. Left displacement magnetic scale; 4. Left oil piston buffer damping; 5. Left oil piston buffer check valve; 6. Left oil cylinder; 7 , left oil cylinder piston; 8, left oil piston seal; 9, left displacement induction magnet; 10, first piston shaft; 11, primary pressurized chamber partition; 12, left oil isolation seal; Intake check valve; 14. First piston shaft seal; 15. Cooling water jacket of booster chamber; 16. Cylinder barrel of booster chamber; 17. Piston of booster chamber; 18. Piston seal of booster chamber; 19. Secondary pressurization chamber partition; 20. Secondary pressurization chamber intake check valve; 21. Second piston shaft seal; 22. Right oil isolation seal; 23. Right oil cylinder; 24. Second piston shaft; 25. Right oil piston seal; 26. Right oil cylinder piston; 27. Right displacement induction magnet; 28. Right oil piston buffer check valve; 29. Right oil piston buffer damping; 30. Right displacement magnetic scale; 31. Backup Tie rod; 32, right backup nut; 33, right oil chamber partition; 34, secondary booster chamber outlet check valve; 35, primary booster chamber outlet check valve; A1, left power chamber; A2, left isolation chamber; A3, primary pressurized chamber; A4, secondary pressurized chamber; A5, right isolation chamber; A6, right power chamber; a, left hydraulic oil inlet and outlet; b, right hydraulic oil inlet and outlet; c, primary booster chamber air inlet; d, primary pressurized chamber air outlet; e, secondary pressurized chamber air inlet; f, secondary pressurized chamber air outlet; g, first fluid medium leakage discharge port; h, first gas Medium leakage discharge port; i, second gas medium leakage discharge port; j, second fluid medium leakage discharge port; k, cooling water inlet; m, cooling water outlet.

Detailed ways

The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.

As shown in FIG. 1 , a segmented split piston shaft drive booster cylinder, the cylinder body includes a left cylinder 6 , a booster chamber cylinder 16 and a right cylinder 23 which are connected in sequence from left to right. Wherein, the right end of the left oil cylinder 6 communicates with the left end of the pressurized chamber cylinder 16 through the primary pressurized chamber partition 11, and the right end of the pressurized chamber cylinder 16 communicates with the right oil cylinder through the secondary pressurized chamber partition 19. The left end of 23 is connected. A left oil chamber partition 1 is provided on the left side of the left oil cylinder 6 ; a right oil chamber partition 33 is provided on the right side of the right oil cylinder 23 .

During specific implementation, in order to improve the integrity of the cylinder block of the booster cylinder, a partition board 1 through the left oil chamber, a partition board 11 of the primary booster chamber, and a partition board of the secondary booster chamber are arranged axially on the four corners of the cylinder body. 19 and the tight pull rod 31 of the right oil chamber dividing plate 33, the two ends of 4 tight pull rods 31 are all provided with external thread. The end of the backup tension rod 31 exposed on the left side of the left oil chamber partition 1 is locked by the left backup nut 2, and the end of the backup tension rod 31 exposed on the right side of the right oil chamber partition 33 is locked by the right backup nut 2. Nut 32 is locked.

In this embodiment, referring to FIG. 1 , the left oil cylinder 6 is provided with a left cylinder piston 7 that divides its cavity into a left power chamber A1 and a left isolation chamber A2; There is a pressurized chamber piston 17 that divides its cavity into a primary pressurized chamber A3 and a secondary pressurized chamber A4; the right oil cylinder 23 is provided with a cavity that is divided into a right isolation chamber A5 and a right power chamber A6 Right oil cylinder piston 26.

In the present embodiment, referring to Fig. 1, a left piston buffer table is provided on the left side of the left oil cylinder piston 7, and a right piston buffer table is provided on the right side of the right oil cylinder piston 26; when the left oil cylinder piston 7 moves to the left When running close to the left oil chamber partition 1, insert it into the left oil cylinder piston buffer groove on the left oil cylinder piston 7; when the right oil cylinder piston 26 runs to the right and approaches the right oil chamber partition 33, it is inserted into the Inside the right oil cylinder piston buffer groove.

Further, in order to prevent the fluid medium in the left power chamber A1 from entering the left isolation chamber A2 in large quantities, which will affect the performance of the pressurized cylinder, a sealing groove is provided on the outer diameter of the left oil cylinder piston 7, and in the sealing groove A left oil piston seal 8 in contact with the inner wall of the left oil cylinder 6 is arranged inside.

In order to prevent the fluid medium in the right power chamber A6 from entering the right isolation chamber A5 in large quantities, which will affect the performance of the pressurized cylinder, a sealing groove is provided on the outer diameter of the right cylinder piston 26, and a sealing groove is provided in the sealing groove. The right oil piston seal 25 that is in contact with the inner wall of the right oil cylinder 23 .

In order to avoid a large amount of gas media in the primary pressurization chamber A3 and the secondary pressurization chamber A4 from communicating with each other and affecting the compression performance of the pressurization cylinder, a sealing groove is provided on the outer diameter of the piston 17 of the pressurization chamber. A pressurized chamber piston seal 18 in contact with the inner wall of the pressurized chamber cylinder 16 is arranged inside.

In this embodiment, as shown in FIG. 1 , the through hole of the primary pressurization chamber partition 11 is respectively provided with a left oil isolation seal 12 and a first piston shaft seal that are in contact with the outer diameter of the first piston shaft 10 14. A second piston shaft seal 21 and a right oil isolating seal 22 that are in contact with the outer diameter of the second piston shaft 24 are respectively provided in the through hole of the secondary pressurization chamber partition 19 .

During specific implementation, in order to ensure the sealing effect, the left oil piston seal 8, the left oil isolation seal 12, the first piston shaft seal 14, the pressurized chamber piston seal 18, the second piston shaft seal 21, the right Oil isolation seal 22 and right oil piston seal 25 all adopt rubber sealing ring.

During implementation in this city, as shown in Fig. 1 and Fig. 2, the top and bottom of the primary booster chamber partition 11 are respectively provided with a primary booster chamber air inlet c and a primary booster chamber communicating with the primary booster chamber A3. Pressure cavity air outlet d. In order to ensure that the gas medium in the primary pressurization chamber A3 does not flow back, a primary booster chamber intake check valve 13 is provided at the inlet c of the primary pressurization chamber, and a primary booster chamber air outlet d is provided at the primary pressurization chamber air outlet d. Pressure cavity air outlet check valve 35.

During specific implementation, when the pressurized cylinder works and the piston rod moves to the right, the gas medium enters the primary pressurized chamber A3 from the intake check valve 13 of the primary pressurized chamber to realize primary pressurization. The medium is discharged by the air outlet check valve 35 of the primary pressurized chamber.

In this embodiment, as shown in Fig. 1 and Fig. 2, the top and the bottom of the partition plate 19 of the secondary pressurization chamber are respectively provided with the air inlet e of the secondary pressurization chamber A4 communicating with the secondary pressurization chamber A4. And the outlet f of the secondary pressurized chamber. In order to ensure that the gas medium in the secondary pressurization chamber A4 does not flow back, a secondary pressurization chamber inlet check valve 20 is provided at the air inlet e of the secondary pressurization chamber, and a secondary pressurization chamber air outlet f There is a check valve 34 for the air outlet of the secondary pressurized chamber.

During specific implementation, the outlet check valve 35 of the primary pressurization chamber communicates with the intake check valve 20 of the secondary pressurization chamber through the exhaust pipe; , the piston rod changes direction and runs from right to left. At this time, the gas medium in the primary pressurization chamber A3 is squeezed, and the gas outlet check valve 35 of the primary pressurization chamber is opened. The pressure chamber intake check valve 20 enters the secondary pressurization chamber A4 for secondary pressurization.

In this embodiment, as shown in FIG. 1 and FIG. 2 , a first fluid medium leakage discharge port g and a first gas medium leakage discharge port h are respectively opened at the bottom of the partition plate 11 of the primary booster chamber. The first fluid medium leakage discharge port g communicates with the left isolation chamber A2; the first gas medium leakage discharge port h is opened at a position between the left oil isolation seal 12 and the first piston shaft seal 14 .

During specific implementation, when the left oil piston seal 8 is unstable or damaged, when the fluid medium in the left power chamber A1 leaks into the left isolation chamber A2, the leaked fluid medium is discharged through the first fluid medium leakage discharge port g Outside the left isolation chamber A2.

During specific implementation, when the first piston shaft seal 14 and the left oil isolation seal 12 are unstable or damaged, the gas medium leaked from the left isolation chamber A2 and the primary pressurized chamber A3 will pass through the first gas medium leakage discharge port h is discharged from the pressurized cylinder to balance the internal pressure of the left isolation chamber A2.

In this embodiment, as shown in FIG. 1 and FIG. 2 , a second fluid medium leakage discharge port j and a second gas medium leakage discharge port i are respectively opened at the bottom of the partition plate 19 of the secondary pressurization chamber. The second fluid medium leakage discharge port j communicates with the right isolation chamber A5 ; the second gas medium leakage discharge port i is opened at a position between the second piston shaft seal 21 and the right oil isolation seal 22 .

During specific implementation, when the right oil piston seal 25 is unstable or damaged, when the fluid medium in the right power chamber A6 leaks into the right isolation chamber A5, the leaked fluid medium is discharged through the second fluid medium leakage discharge port j Outside the right isolation chamber A5.

During specific implementation, when the second piston shaft seal 21 and the right oil isolation seal 22 are unstable or damaged, the gas medium leaked from the right isolation chamber A5 and the secondary pressurization chamber A4 is discharged through the leakage of the second gas medium Port i is discharged from the pressurized cylinder to balance the internal pressure of the left isolation chamber A5.

In this embodiment, as shown in Fig. 1, the first piston shaft 10 is straddled in the through hole of the partition plate 11 of the primary pressurization chamber, and its two ends extend into the left isolation chamber A2 and the primary pressurization chamber respectively. In A3, one end extending into the left isolation chamber A2 is threadedly connected with the left oil cylinder piston 7, and one end extending into the primary boosting chamber A3 contacts with the boosting chamber piston 17 under the action of power drive, and pushes the booster Chamber piston 17 moves to the right.

During specific implementation, the center of one end of the first piston shaft 10 extending into the left isolation cavity A2 is provided with a blind hole to facilitate the insertion of the left displacement magnetic ruler 3, and a left displacement induction magnet 9 is arranged at the blind hole, and the left cylinder The piston 7 is sleeved on the outer diameter of the first piston shaft 10 .

In this embodiment, as shown in FIG. 1 , the second piston shaft 24 straddles the through hole of the partition plate 19 of the secondary pressurization chamber, and its two ends extend into the secondary pressurization chamber A4 and the right side respectively. In the isolation cavity A5, one end extending into the right isolation cavity A5 is threadedly connected with the right oil cylinder piston 26, and one end extending into the secondary boosting cavity A4 contacts with the boosting cavity piston 17 under the action of power drive, and Push boost chamber piston 17 to move to the left.

During specific implementation, the center of one end of the second piston shaft 24 extending into the right isolation cavity A5 is provided with a blind hole for the insertion of the right displacement magnetic ruler 30, and a right displacement induction magnet 27 is arranged at the blind hole, and the right cylinder The piston 26 is sleeved on the outer diameter of the second piston shaft 24 .

In this embodiment, as shown in Fig. 1 and Fig. 2, a center hole is opened on the left oil chamber separator 1, the center hole is concentric with the first piston shaft 10, and the left displacement magnetic ruler 3 is axially It is straddled in the center hole, and its electronic compartment is exposed on the left side of the left oil chamber partition 1. The detection rod extends into the left oil cylinder 6, passes through the left oil cylinder piston 7, passes through the left displacement induction magnet 9, and extends to the second In the blind hole of a piston shaft 10.

During specific implementation, the left displacement magnetic ruler 3 is connected with the control system, and is used in cooperation with the left displacement induction magnet 9 for monitoring the moving position of the left oil cylinder piston 7 .

In this embodiment, as shown in Fig. 1 and Fig. 2, the top of the left oil chamber separator 1 is provided with a left hydraulic oil inlet and outlet a communicating with the left power chamber A1, and the left hydraulic oil inlet and outlet a passes through the oil The liquid pipeline communicates with the hydraulic oil system, and the hydraulic oil system is connected with the control system for controlling the input and output of the fluid medium in the left power chamber A1.

In this embodiment, referring to Fig. 1, the right side of the left oil chamber separator 1 is provided with a left oil cylinder piston buffer groove for slowing down the impulse force of the left oil cylinder piston 7; the left oil cylinder piston buffer groove is an annular groove, when When the left oil cylinder piston 7 moves to the limit to the left, its buffer table is inserted in the buffer groove.

Further, the left oil piston buffer check valve 5 and the left oil piston buffer damper 4 are arranged side by side in the buffer groove of the left oil cylinder piston; microchannel.

The microchannel, the left oil piston buffer check valve 5 and the left oil piston buffer damper 4 are respectively connected with the left hydraulic oil inlet and outlet a.

Specifically, as shown in Figure 3, the left oil piston buffer check valve 5 is unidirectionally connected from the left hydraulic oil inlet and outlet a to the B1 cavity. When the oil cylinder piston is in the buffer groove, the B1 chamber, B2 chamber and the original left power chamber A1 are formed. When the left oil cylinder piston 7 continues to move to the left, the fluid medium in the left power chamber A1 and B2 chamber can directly pass through the left hydraulic oil inlet and outlet a directly returns to the hydraulic oil system, at this time, the buffer check valve 5 of the left oil piston is closed, and the fluid medium in the B1 cavity can only return to the hydraulic oil system through the buffer damper 4 of the left oil piston, and the buffer damper 4 of the left oil piston acts on the fluid medium Due to the damping effect, the fluid medium in the B1 chamber returns to the hydraulic oil system at a slower speed. This damping effect can provide reverse acceleration to the left oil cylinder piston 7, so that the left oil cylinder piston 7 can be decelerated, which can ensure that the booster cylinder operates more smoothly at the limit position. Stable; when the left oil cylinder piston 7 moves to the right, the power fluid medium passes through the left hydraulic oil inlet and outlet a to the left power chamber A1 channel, the left hydraulic oil inlet and outlet a passes through the left oil piston buffer check valve 5 to the B1 chamber channel, and the left hydraulic oil The passages from oil inlet and outlet a to chamber B2 enter the left power chamber A1 at the same time, and each passage has no damping, so that the left oil cylinder piston 7 leaves the left power chamber A1 smoothly.

In this embodiment, as shown in Fig. 1 and Fig. 2, a center hole is opened on the right oil chamber separator 33, the center hole is coaxial with the second piston shaft 24, and the right displacement magnetic scale 30 is axially It is straddled in the center hole, and its electronic compartment is exposed on the right side of the right oil chamber partition 33. The detection rod extends into the right oil cylinder 23, passes through the right oil cylinder piston 26, and extends to the second position through the right displacement induction magnet 27. In the blind hole of the two piston shafts 24.

During specific implementation, the right displacement magnetic scale 30 is connected with the control system, and is used in cooperation with the right displacement induction magnet 27 for monitoring the movement position of the right cylinder piston 26 .

In this embodiment, as shown in Fig. 1 and Fig. 2, the top of the right oil chamber separator 33 is provided with a right hydraulic oil inlet and outlet b communicating with the right power chamber A6, and the right hydraulic oil inlet and outlet b passes through the oil The liquid pipeline communicates with the hydraulic oil system, and the hydraulic oil system is connected with the control system for controlling the input and output of the fluid medium in the right power chamber A6.

In this embodiment, referring to Fig. 1, the right side of the right oil chamber partition 33 is provided with a right oil cylinder piston buffer groove for slowing down the impulse force of the right oil cylinder piston 26; the right oil cylinder piston buffer groove is an annular groove, when When the right oil cylinder piston 26 moves to the limit to the right, its buffer table is inserted in the buffer groove.

Further, a right oil piston buffer check valve 28 and a right oil piston buffer damper 29 are arranged side by side in the buffer groove of the right oil cylinder piston; microchannel.

The microchannel, the right oil piston buffer check valve 28 and the right oil piston buffer damper 29 communicate with the right hydraulic oil inlet and outlet b respectively.

Specifically, the buffering principle realized by the right oil cylinder piston 26 is the same as the buffering principle of the left oil piston 7, and will not be repeated here.

In this embodiment, as shown in FIG. 1 , a cooling water jacket 15 for the boosting chamber is set on the outer wall of the cylinder barrel 16 of the boosting chamber, and a cooling water jacket is provided at the top end of the booster chamber partition 11 close to the primary boosting chamber. The outlet m has a cooling water inlet k at the bottom end close to the partition plate 19 of the secondary pressurization chamber; both the cooling water outlet m and the cooling water inlet k are connected to the water cooling system.

During specific implementation, the segmented split type piston shaft transmission booster cylinder provided by the present invention, when the cylinder body is running, the fluid medium enters the left power chamber A1 from the hydraulic oil system to push the left oil cylinder piston 7 to drive the first piston shaft 10 to run to the right, Contact with the booster chamber piston 17 and push the booster chamber piston 17 to move to the right, and push the second piston shaft 24 to run to the right. While running to the right, the fluid medium in the right power chamber A6 is discharged back to the hydraulic oil system, and the gas medium is discharged from the hydraulic oil system. The intake check valve 13 of the primary pressurization chamber enters the primary pressurization chamber A3, the gas medium in the secondary pressurization chamber A4 is discharged by the secondary pressurization chamber outlet check valve 34 after the second pressurization, and the right cylinder piston 26 runs to the right side, the control system completes the suction of the primary pressurization chamber A3 when the limit limit is detected by the displacement magnetic ruler 30, and completes the exhaust of the secondary pressurization chamber A4; the control system controls the hydraulic oil system to enter the fluid medium into the right The power chamber A6 pushes the right cylinder piston 26 to drive the second piston shaft 24 to run to the left, pushes the pressurized chamber piston 17 to run to the left, pushes the first piston shaft 10 to run to the left, and drives the left cylinder piston 7 to run to the left; While running, the fluid medium in the left power chamber A1 is discharged back to the hydraulic oil system, and the gas medium in the primary pressurization chamber A3 is pressurized for the first time, and enters the secondary pressurization through the gas outlet check valve 35 of the primary pressurization chamber Chamber A4, since the volume of the secondary pressurization chamber A4 is smaller than the volume of the primary pressurization chamber A3, the pressurized gas medium needs to enter the small volume from the large volume, the pressure rises, the left cylinder piston 7 moves to the left, and the control system passes through the left When the displacement magnetic ruler 3 detects the limit position, the gas medium in the primary pressurization chamber A3 is compressed into the secondary pressurization chamber A4, and the gas medium completes the first pressurization; the left cylinder piston 7 and the right cylinder piston 26 are under control Under the cooperation of system displacement detection and hydraulic oil system, it reciprocates between the left limit position and the right limit position, and completes the periodic intake and exhaust of the first pressurized chamber A3, and the periodic intake and exhaust of the secondary pressurized chamber A4 , the pressurized cylinder completes the first pressurization and the second pressurization of the gas medium to be pressurized.

The segmented split piston shaft drive booster cylinder provided by the present invention can also be improved as follows:

Example 2

Referring to Fig. 4, the cylinder structure and supercharging principle to realize the double pressurization of the gas medium;

The power oil enters chamber A11, while the hydraulic oil in chamber A18 is discharged back to the oil tank, the piston rod and piston in the cylinder run to the right, the gas medium to be pressurized enters chamber A13 from the intake line, and the gas medium in chamber A16 is pressurized for the first time to A15 chamber, the volume of A15 chamber is smaller than that of A16 chamber, the gas medium needs to be pressurized from the large volume to the small volume, the pressure rises, the gas medium in A14 chamber is discharged from the exhaust port after the second pressurization, and the piston moves to the right and is controlled by the control system When the limit position is detected, the suction of chamber A13 is completed, the gas medium in chamber A16 is compressed to chamber A15, and the exhaust of chamber A14 is completed; power oil enters chamber A18 and hydraulic oil in chamber A11 is discharged back to the oil tank. When the piston rod and piston run to the left, The gas medium to be pressurized enters the A16 cavity from the intake pipeline, and the fluid in the A13 cavity enters the A14 cavity after the first pressurization, and the volume of the A14 cavity is smaller than that of the A13 cavity, and the gas medium to be pressurized enters the small volume from the large volume, and the pressure increases , the gas medium in chamber A15 is discharged from the exhaust port after the second pressurization, when the piston moves to the left limit position detected by the control system, the suction of chamber A6 is completed, the gas medium in chamber A13 is compressed to chamber A14, and the discharge of chamber A15 is completed. The gas is completed; the piston reciprocates between the left limit position and the right limit position, the A13 chamber, A14 chamber, A15 chamber, and A16 chamber complete the alternate intake and exhaust, and the booster cylinder completes the first and second pressurization of the gas medium that needs to be pressurized. Secondary two-way double-acting booster.

The cold water system provides cold water for cooling the two pressurized cylinders. The cold water enters the cold water chamber through the k1 port and the n1 port to cool the pressurized cylinders. After circulating cooling, it returns to the cold water system through the m1 port and the o1 port respectively.

Example 3

Referring to Fig. 5, the cylinder structure and principle of supercharging to realize the three-time pressurization of the gas medium;

The power oil enters the A21 chamber and the hydraulic oil in the A210 chamber is discharged back to the oil tank. The piston rod and the piston in the cylinder run to the right. The gas medium that needs to be pressurized enters the A25 chamber from the intake pipeline, and the gas medium in the A26 chamber is pressurized for the first time to A27 The volume of chamber A27 is smaller than that of chamber A26. The gas medium needs to be pressurized from the large volume to the small volume, and the pressure rises. The exhaust port is exhausted, and when the piston moves to the right and the limit position is detected by the control system, the suction of the A25 chamber is completed, the gas medium in the A26 chamber is compressed into the A27 chamber, the gas medium in the A24 chamber is compressed into the A23 chamber, and the exhaust of the A28 chamber is completed; The power oil enters the A210 cavity and the hydraulic oil in the A21 cavity is discharged back to the oil tank. When the piston rod and the piston run to the left, the pressurized gas medium enters the A26 cavity from the intake line, and the gas medium in the A25 cavity enters the A24 cavity after the first pressurization , the volume of chamber A24 is smaller than the volume of chamber A25, the gas medium needs to be pressurized from the large volume to the small volume, the pressure rises, the gas medium in chamber A27 is pressurized for the second time and enters chamber A28, and the gas medium in chamber A23 is pressurized for the third time Excluded by the exhaust port, when the piston moves to the left and the limit position is detected by the control system, the suction of A26 chamber is completed, the gas medium in A25 chamber is compressed into A24 chamber, the gas medium in A27 chamber is compressed into A28 chamber, and the A23 chamber is exhausted Complete; the piston reciprocates between the left limit position and the right limit position, A23 cavity, A24 cavity, A25 cavity, A26 cavity, A27 cavity, A28 cavity complete alternate intake and exhaust, and the pressurized cylinder completes the process of pressurized gas medium The first, second and third two-way double-acting supercharging.

The cold water system provides cold water for cooling the three cylinders of the pressurized cylinder. The cold water enters the cold water chamber from the p2 port, r2 port and t2 port to cool the pressurized cylinder, and returns to the q2 port, s2 port and u2 port respectively after circulating cooling cold water system.

Example 4

Referring to Fig. 6, the cylinder structure and supercharging principle for four pressurization of the gas medium are realized;

The power oil enters the A31 chamber and the hydraulic oil in the A38 chamber is discharged back to the oil tank. The piston rod and the piston in the cylinder run to the right. The gas medium that needs to be pressurized enters the A33 chamber from the intake line, and the gas medium in the A36 chamber is pressurized for the second time to A35 The volume of chamber A35 is smaller than that of chamber A36. The gas medium needs to be pressurized to enter the small volume from the large volume, and the pressure rises. The gas medium in chamber A34 is discharged after the fourth pressurization. When the piston moves to the right and the limit position is detected by the control system The suction of chamber A33 is completed, the gas medium in chamber A36 is compressed to chamber A35, and the exhaust of chamber A34 is completed; the power oil enters chamber A38 and the hydraulic oil in chamber A31 is discharged back to the oil tank. When the piston rod and piston move to the left, the gas medium in chamber A33 After the first pressurization, it enters the A36 cavity, and the volume of the A36 cavity is smaller than that of the A33 cavity. The gas medium needs to be pressurized from the large volume to the small volume, and the pressure rises. The gas medium in the A35 cavity enters the A34 cavity after the third pressurization, and the piston When running to the left and the control system detects the limit position, the gas medium in chamber A33 is compressed to chamber A36, and the gas medium in chamber A35 is compressed to chamber A34; the piston reciprocates between the left limit position and the right limit position, A33 chamber, A34 cavity, A35 cavity and A36 cavity complete alternate intake and exhaust, and the booster cylinder completes the first, second, third and fourth two-way double-action supercharging of the gas medium to be pressurized.

The cold water system provides cooling water for the two cylinders of the pressurized cylinder. The cooling water enters the cold water cavity through the k3 port and the n3 port respectively, and returns to the cold water system through the m3 port and the o3 port respectively after circulating cooling.

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the present invention. protection scope of the invention.

Claims (10)

1. The utility model provides a segmentation split type piston shaft transmission booster cylinder which characterized in that: the hydraulic cylinder comprises a left oil cylinder (6), a pressurizing cavity cylinder barrel (16) and a right oil cylinder (23) which are sequentially communicated from left to right; the left oil cylinder (6) is communicated with the pressurizing cavity cylinder barrel (16) through a primary pressurizing cavity partition plate (11), and the pressurizing cavity cylinder barrel (16) is communicated with the right oil cylinder (23) through a secondary pressurizing cavity partition plate (19);

a left cylinder piston (7) which divides the cavity of the left cylinder (6) into a left power cavity (A1) and a left isolation cavity (A2) is arranged in the left cylinder; a pressurizing cavity piston (17) which divides the cavity of the pressurizing cavity cylinder barrel (16) into a primary pressurizing cavity (A3) and a secondary pressurizing cavity (A4) is arranged in the pressurizing cavity cylinder barrel; a right cylinder piston (26) which divides the cavity of the right cylinder (23) into a right isolation cavity (A5) and a right power cavity (A6) is arranged in the right cylinder;

a first piston shaft (10) with two ends extending into the left isolation cavity (A2) and the primary pressurizing cavity (A3) is arranged in the through hole of the primary pressurizing cavity partition plate (11) in a crossing manner, one end extending into the left isolation cavity (A2) is in threaded connection with the left cylinder piston (7), and the other end extending into the primary pressurizing cavity (A3) is in contact with the pressurizing cavity piston (17) under the action of power driving and pushes the pressurizing cavity piston (17) to move rightwards;

the through hole of the secondary pressurizing cavity baffle plate (19) is internally spanned with a second piston shaft (24) of which two ends respectively extend into the secondary pressurizing cavity (A4) and the right isolating cavity (A5), one end extending into the right isolating cavity (A5) is in threaded connection with the right cylinder piston (26), one end extending into the secondary pressurizing cavity (A4) is in contact with the pressurizing cavity piston (17) under the action of power driving, and the pressurizing cavity piston (17) is pushed to move leftwards.

2. A segmented split piston shaft driven booster cylinder as defined in claim 1, wherein: a left oil cavity baffle plate (1) is arranged on the left side of the left oil cylinder (6); a left displacement magnetic ruler (3) is axially arranged in the central hole of the left oil cavity baffle plate (1) in a crossing manner, a left hydraulic oil inlet and outlet (a) communicated with the left power cavity (A1) is formed in the top of the left oil cavity baffle plate, and a left oil cylinder piston buffer groove for slowing down the buffer force of a left oil cylinder piston (7) is formed in the right side of the left oil cavity baffle plate;

the left hydraulic oil inlet and outlet (a) is communicated with a hydraulic oil system through an oil pipeline; the electronic bin of the left displacement magnetic ruler (3) is exposed out of the left side of the left oil cavity partition board (1), the detection rod extends into the left oil cylinder (6) and penetrates through the left oil cylinder piston (7) to extend into a blind hole formed in the axis of the first piston shaft (10);

a left oil piston buffering one-way valve (5) and a left oil piston buffering damper (4) are arranged in the left oil cylinder piston buffering groove in parallel up and down; the left oil piston buffering one-way valve (5) and the left oil piston buffering damping (4) are respectively communicated with the left hydraulic oil inlet and outlet (a).

3. A segmented split piston shaft driven booster cylinder as defined in claim 1, wherein: the top and the bottom of the primary pressurizing cavity partition plate (11) are respectively provided with a primary pressurizing cavity air inlet (c) and a primary pressurizing cavity air outlet (d) which are communicated with the primary pressurizing cavity (A3); the primary pressurizing cavity air inlet (c) is provided with a primary pressurizing cavity air inlet one-way valve (13), and the primary pressurizing cavity air outlet (d) is provided with a primary pressurizing cavity air outlet one-way valve (35);

the gas medium enters the primary pressurizing cavity (A3) through the primary pressurizing cavity air inlet one-way valve (13) to be pressurized once, and the gas medium is discharged through the primary pressurizing cavity air outlet one-way valve (35) after the primary pressurizing is completed.

4. A segmented split piston shaft driven booster cylinder as defined in claim 3, wherein: the top and the bottom of the secondary pressurizing cavity partition plate (19) are respectively provided with a secondary pressurizing cavity air inlet (e) and a secondary pressurizing cavity air outlet (f) which are communicated with the secondary pressurizing cavity (A4); the secondary pressurizing cavity air inlet (e) is provided with a secondary pressurizing cavity air inlet one-way valve (20), and the secondary pressurizing cavity air outlet (f) is provided with a secondary pressurizing cavity air outlet one-way valve (34);

the primary pressurizing cavity air outlet one-way valve (35) is communicated with the secondary pressurizing cavity air inlet one-way valve (20) through an exhaust pipeline; when the gas medium in the primary pressurizing cavity (A3) is extruded, the primary pressurizing cavity air outlet one-way valve (35) is opened, and the gas medium enters the secondary pressurizing cavity (A4) through the secondary pressurizing cavity air inlet one-way valve (20) through the exhaust pipeline to carry out secondary pressurizing.

5. A segmented split piston shaft driven booster cylinder as defined in claim 2, wherein: a right oil cavity baffle plate (33) is arranged on the right side of the right oil cylinder (23); a right displacement magnetic ruler (30) is axially arranged in the central hole of the right oil cavity baffle plate (33) in a crossing manner, a right hydraulic oil inlet and outlet (b) communicated with the right power cavity (A6) is formed in the top of the right oil cavity baffle plate, and a right oil cylinder piston buffer groove for slowing down the buffer force of a right oil cylinder piston (26) is formed in the left side of the right oil cavity baffle plate;

the right hydraulic oil inlet and outlet (b) is communicated with a hydraulic oil system through an oil pipeline; the electronic bin of the right displacement magnetic ruler (30) is exposed to the right side of the right oil cavity partition plate (33), the detection rod extends into the right oil cylinder (23) and penetrates through the right oil cylinder piston (26) to extend into a blind hole formed in the axis of the second piston shaft (24);

a right oil piston buffering one-way valve (28) and a right oil piston buffering damper (29) are arranged in the right oil cylinder piston buffering groove in parallel up and down; the right oil piston buffering one-way valve (28) and the right oil piston buffering damping (29) are respectively communicated with the right hydraulic oil inlet and outlet (b).

6. A segmented split piston shaft driven booster cylinder as defined in claim 5, wherein: one end of the first piston shaft (10) connected with the left oil cylinder piston (7) is provided with a left displacement induction magnet (9) which is matched with the left displacement magnetic ruler (3) for use and is used for monitoring the moving position of the left oil cylinder piston (7); one end of the second piston shaft (24) connected with the right oil cylinder piston (26) is provided with a right displacement induction magnet (27) which is matched with a right displacement magnetic ruler (30) for monitoring the moving position of the right oil cylinder piston (26).

7. A segmented split piston shaft driven booster cylinder as defined in claim 1, wherein: a left oil piston sealing piece (8) which is contacted with the inner wall of the left oil cylinder (6) is arranged on the outer diameter of the left oil cylinder piston (7); a right oil piston sealing piece (25) which is in contact with the inner wall of the right oil cylinder (23) is arranged on the outer diameter of the right oil cylinder piston (26); and a pressurizing cavity piston sealing piece (18) contacted with the inner wall of the pressurizing cavity cylinder barrel (16) is arranged on the outer diameter of the pressurizing cavity piston (17).

8. A segmented split piston shaft driven booster cylinder as defined in claim 1 or 4, wherein: a left oil isolation sealing piece (12) and a first piston shaft sealing piece (14) which are in contact with the outer diameter of the first piston shaft (10) are respectively arranged in the through hole of the primary pressurizing cavity partition plate (11); and a second piston shaft sealing piece (21) and a right oil isolation sealing piece (22) which are in contact with the outer diameter of the second piston shaft (24) are respectively arranged in the through hole of the secondary pressurizing cavity partition plate (19).

9. The segmented split piston shaft driven booster cylinder of claim 8, wherein: the bottom of the primary pressurizing cavity partition plate (11) is also provided with a first fluid medium leakage discharge port (g) and a first gas medium leakage discharge port (h) respectively; the first fluid medium leakage discharge port (g) is communicated with the left isolation cavity (A2); the first gas medium leakage discharge port (h) is arranged at a position between the left oil isolation sealing piece (12) and the first piston shaft sealing piece (14);

the bottom of the secondary pressurizing cavity partition plate (19) is also provided with a second fluid medium leakage discharge port (j) and a second gas medium leakage discharge port (i) respectively; the second fluid medium leakage discharge port (j) is communicated with the right isolation cavity (A5); the second gas medium leakage discharge port (i) is formed at a position between the second piston shaft sealing element (21) and the right oil isolation sealing element (22).

10. A segmented split piston shaft driven booster cylinder as defined in claim 1, wherein: a booster cavity cooling water jacket (15) is sleeved on the outer wall of the booster cavity cylinder barrel (16), a cooling water outlet (m) is formed in one end, close to the primary booster cavity partition plate (11), of the top of the booster cavity cooling water jacket, and a cooling water inlet (k) is formed in one end, close to the secondary booster cavity partition plate (19), of the bottom of the booster cavity cooling water jacket; the cooling water outlet (m) and the cooling water inlet (k) are communicated with a water cooling system.

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