Hydraulic work station

Abstract

The technical scheme belongs to the technical field of hydraulic power devices, and particularly relates to a hydraulic work station which comprises a mounting seat and a pump seat arranged on the mounting seat, the pump seat covers the mounting seat, a pump cavity is formed between the pump seat and the mounting seat, two gears are rotatably connected in the pump cavity, and the two gears divide the pump cavity into a first oil cavity and a second oil cavity. The mounting seat is provided with a first oil way and a second oil way, the first oil way and the second oil way are communicated with the first oil cavity and the second oil cavity in a one-to-one correspondence mode respectively, and the ends, away from the pump cavity, of the first oil way and the second oil way are used for being connected with an execution piece. The two gears are hidden between the pump base and the mounting base, the pump base can tightly cover the pump cavity, the sealing performance of the pump cavity is ensured, and the compactness between the pump base and the mounting base is improved.

Description

Technical Field

[0001] The present technical solution relates to the technical field of hydraulic power devices, and in particular to a hydraulic workstation. Background Art

[0002] A hydraulic workstation is a device that centrally controls, operates and maintains a hydraulic system. It mainly includes a hydraulic oil tank that holds hydraulic oil and a hydraulic pump driven by a motor. It has the function of controlling the pressure, flow, direction and other parameters of the hydraulic system.

[0003] For example, Chinese patent CN106015167A discloses a gear pump hydraulic pump station, including an oil-immersed motor and a hydraulic pump arranged in an oil tank with an end cover; a connecting bracket is also arranged in the oil tank; the hydraulic pump adopts an axially oil-discharging gear pump, and the gear pump is connected to the motor shaft of the oil-immersed motor; the pressure oil discharge port of the gear pump is transmitted to the pressure oil inlet of the base through the front cover of the oil-immersed motor and the oil hole connected in the connecting bracket, and the base also has a pressure oil outlet for conveying the pressure oil to the control valve, a return oil inlet connected to the system return oil, and a return oil outlet for flowing the system return oil back into the oil tank.

[0004] The above-mentioned gear pump hydraulic pump station, the existing hydraulic pump adopts an axial oil outlet gear pump, the gear pump is directly fixed on the front cover of the oil-immersed motor through the flange mounting surface to form an integral structure, the overall structure compactness of the gear pump after installation and use is poor, and needs to be improved. Summary of the invention

[0005] In order to improve the problem of poor overall structural compactness of the gear pump after installation and use, the technical solution provides a hydraulic workstation.

[0006] The purpose of this technical solution is achieved in this way:

[0007] A hydraulic workstation includes a mounting base and a pump base arranged on the mounting base, the pump base cover is placed on the mounting base, a pump chamber is formed between the pump base and the mounting base, two gears are rotatably connected in the pump chamber, the two gears are separated into an oil chamber 1 and an oil chamber 2, the mounting base is provided with an oil circuit 1 and an oil circuit 2, the oil circuit 1 and the oil circuit 2 are respectively connected to the oil chamber 1 and the oil chamber 2 in a one-to-one correspondence, and the ends of the oil circuit 1 and the oil circuit 2 away from the pump chamber are used to connect to an actuator.

[0008] Through the above technical solution, when the hydraulic workstation is in normal use, the pump seat is directly installed on the mounting seat, and the oil chamber 1 and the oil chamber 2 in the pump chamber are divided into two independent chambers by two gears to ensure the effective flow and distribution of the oil in the pump chamber. There is a meshing relationship between the two gears in the pump chamber. When one of the gears is driven to rotate, the gear drives the other gear to keep rotating synchronously. When the two gears rotate, the oil in the oil chamber 1 is driven and the oil is driven along the oil circuit 1 to the rodless area of ​​the actuator to realize oil supply, and the oil in the rod area of ​​the actuator is conducted along the oil circuit 2 toward the direction close to the oil chamber 2 to realize oil discharge. When the two gears rotate in opposite directions, the oil flows in the same path in the opposite direction to realize alternating oil supply.

[0009] Based on the pump cavity being formed between the pump seat and the mounting seat, the two gears are accurately built into the pump cavity, so that the two gears are hidden between the pump seat and the mounting seat. The pump seat can tightly cover the pump cavity, ensure the sealing of the pump cavity, and improve the compactness between the pump seat and the mounting seat.

[0010] Preferably, the end of the oil circuit 1 close to the pump chamber has an oil pump port 1, the end of the oil circuit 1 away from the pump chamber has an execution port 1, the mounting seat is further provided with a mounting groove 1, the mounting groove 1 is connected between the execution port 1 and the oil pump port 1, a one-way valve 1 is installed in the mounting groove 1, the one-way valve 1 allows the oil pump port 1 to be unidirectionally conducted toward the execution port 1;

[0011] The second oil circuit has a second pump oil port at one end close to the pump chamber, and has a second execution port at one end away from the pump chamber. The mounting seat is also provided with a second mounting groove, and the second mounting groove is connected between the second execution port and the second pump oil port. A second one-way valve is installed in the second mounting groove, and the second one-way valve allows the second pump oil port to be unidirectionally conducted toward the second execution port.

[0012] The second installation groove is arranged opposite to the first installation groove, and a sliding groove is connected between the first installation groove and the second installation groove, and an adjusting member is slidingly connected in the sliding groove. When the second pump oil port discharges oil, the first pump oil port supplies oil toward the first execution port to push the adjusting member to move toward the second check valve, and the adjusting member triggers the second check valve to make the second execution port conduct toward the second pump oil port for oil reflux, and the first check valve is triggered to circulate the oil;

[0013] When the oil pump port 1 discharges oil, the execution port 2 supplies oil toward the oil pump port 2 to push the adjusting member to move toward the one-way valve 1, and the adjusting member triggers the one-way valve 1 to make the execution port 1 connected toward the oil pump port 1 for the oil liquid to flow back, and the one-way valve 2 is triggered to supply the oil liquid to flow out.

[0014] Through the above technical scheme, oil circuit one and oil circuit two are respectively provided with pump oil port one and pump oil port two, and the two pump oil ports are directly connected to oil chamber one and oil chamber two in the pump cavity, ensuring that the oil can flow directly between the pump cavity and the oil circuit, and execution port one and execution port two are respectively provided at the other end of oil circuit one and oil circuit two, for connecting different areas in the external actuator, so that the oil can flow smoothly into the actuator through execution port one and execution port two to provide power for it, and the one-way valve one in the installation groove one and the one-way valve two in the installation groove two are coordinated to achieve a better control effect on the oil circulation, ensuring that the oil can only flow in the set direction, avoiding the oil from flowing back or reflux in the actuator due to hydraulic pressure difference, and ensuring the stability of hydraulic work and safety of use.

[0015] When the two gears are running, the driving oil is supplied from the pump oil port 1 toward the actuator port 1. The oil is conducted to the installation groove 1, which increases the oil pressure in the installation groove 1. The one-way valve 1 remains open during this process, allowing the oil to flow from the pump oil port 1 to the actuator port 1 and enter one side of the actuator. At the same time, the oil will push the adjusting part to move along the sliding groove toward the one-way valve 2 until the adjusting part contacts the one-way valve 2, causing the one-way valve 2 to be triggered. The oil on the other side of the actuator can flow back to the pump oil port 2 through the one-way valve 2.

[0016] On the contrary, when oil is discharged from pump oil port 1, one-way valve 2 remains open, allowing oil to flow from pump oil port 2 to actuator port 2 and enter the actuator. At the same time, the pressure of the oil will push the adjusting part to move toward one-way valve 1, and the adjusting part triggers one-way valve 1. The oil on the other side of the actuator can flow back to pump oil port 1 through one-way valve 1, flexibly controlling the flow route of the oil, thereby realizing the reciprocating drive of the actuator.

[0017] Preferably, the mounting seat is provided with a filter screen, and two filter screens are provided, and the two filter screens are arranged at the execution port 1 and the execution port 2 in a one-to-one correspondence.

[0018] Through the above technical solution, when there are tiny impurities or particles in the oil circulation process, the two filter covers are combined at the openings of the execution port 1 and the execution port 2, and the impurities are intercepted by the filter to prevent them from entering the oil path, thereby reducing the wear or damage caused by the impurities to the slippage of the actuator and the rotation process of the gear, extending the service life and improving the protection effect.

[0019] Preferably, the mounting seat is provided with two overflow valves, and the two overflow valves are arranged in the oil circuit 1 and the oil circuit 2 in a one-to-one correspondence.

[0020] Through the above technical solution, the two overflow valves are connected to oil circuit one and oil circuit two respectively. The two overflow valves are opened by manual operation to release excess oil or replenish oil, so that the oil pressure in the two oil circuits can be accurately controlled within the set safety range, avoiding abnormal increase or decrease in oil pressure that causes failure in normal use, thereby improving operational reliability.

[0021] Preferably, the mounting seat is provided with a mounting hole 1, the mounting hole 1 is communicated with a mounting groove 1, the mounting hole 1 is connected with a fixing member 1, and the fixing member 1 is removed to open the mounting groove 1 for installation of a one-way valve 1 and an adjusting member.

[0022] Through the above technical solution, the mounting hole 1 of the mounting seat is connected to the mounting groove 1, and the mounting groove 1 can be easily opened or closed by the fixing member 1. The shape of the groove is adapted to the one-way valve 1 and the adjusting member. The installation and disassembly of the one-way valve 1 and the adjusting member are facilitated by opening or closing the groove of the mounting groove 1, thereby improving convenience.

[0023] Preferably, the mounting seat is provided with a second mounting hole, the second mounting hole is communicated with the second mounting groove, the second mounting hole is connected with a second fixing member, and the second fixing member is removed to open the second mounting groove for installation of the second one-way valve.

[0024] Through the above technical solution, the second mounting hole of the mounting seat is connected to the second mounting groove, and the second mounting groove is easily opened or closed by the second fixing member. The shape of the groove is adapted to the second one-way valve. The installation and disassembly of the second one-way valve is facilitated by opening or closing the groove of the second mounting groove, thereby further improving convenience.

[0025] Preferably, the fixing member 1 and the fixing member 2 are both provided with sealing rings, and the two sealing rings are respectively pressed tightly between the fixing member 1 and the fixing member 2 and the mounting seat.

[0026] Through the above technical solution, sealing rings are mounted on both the fixing member 1 and the fixing member 2, and the two sealing rings are respectively tightly pressed between the fixing member 1 and the fixing member 2 and the mounting seat, thereby forming a reliable sealing effect on the gap after the fixing member 1 and the fixing member 2 are installed in the mounting hole 1 and the mounting hole 2, preventing oil from leaking through the gap and improving the sealing performance.

[0027] Preferably, the mounting seat is provided with an air venting hole, the air venting hole is connected with a sealing bolt, and the sealing bolt is loosened to allow gas to be discharged.

[0028] Through the above technical solution, one end of the bleed hole is connected to the outside and is connected to a sealing bolt. The bleed hole is made conductive by loosening the sealing bolt. The other end of the bleed hole is connected to the mounting seat to the internal space of the device. The gas accumulated in the internal space is discharged through the bleed hole to avoid the accumulation of oil and gas affecting safety.

[0029] Preferably, the pump seat has a countersunk hole, and the mounting seat is provided with connecting holes corresponding to the positions of the countersunk holes. The countersunk holes are used for fixing bolts to pass through and then be threadedly connected to the connecting holes. The pump seat and the mounting seat are detachably connected.

[0030] Through the above technical solution, after the pump seat and the mounting seat are close to each other, the connecting hole of the mounting seat is aligned with the countersunk hole of the pump seat and then connected. After the fixing bolts pass through the countersunk holes one by one, the bolt body of the fixing bolt is threadedly connected to the connecting hole so that the bolt head of the fixing bolt rests on the step surface of the countersunk hole, ensuring that the surface of the pump seat is flat, reducing obstructions caused by the protruding bolt head, and thereby improving the connection stability.

[0031] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:

[0032] 1. This technical solution forms a pump cavity between the pump seat and the mounting seat by covering the pump seat with the mounting seat, and the two gears are accurately built into the pump cavity, so that the two gears are hidden between the pump seat and the mounting seat, and the pump seat can tightly cover the pump cavity, thereby ensuring the sealing and compactness of the pump cavity;

[0033] 2. This technical solution is to install a one-way valve 1 in the installation groove 1, install a one-way valve 2 in the installation groove 2, the installation groove 2 is arranged opposite to the installation groove 1 and is connected with a sliding groove, and an adjusting member is slidingly connected in the sliding groove, and different oil flows are realized by the cooperation of the one-way valve 1, the one-way valve 2 and the adjusting member;

[0034] 3. This technical solution provides two overflow valves connected to oil circuit one and oil circuit two respectively on the mounting seat. The two overflow valves are opened by manual operation to release excess oil or replenish oil, thereby accurately controlling the oil pressure in the two oil circuits and improving the reliability of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0036] Figure 2 It is a partial explosion schematic diagram of this embodiment;

[0037] Figure 3 For this embodiment Figure 1 Schematic diagram from another perspective;

[0038] Figure 4 For this embodiment Figure 3 Schematic diagram of local explosion;

[0039] Figure 5 It is a partial cross-sectional schematic diagram of this embodiment;

[0040] Figure 6 For example Figure 5 Another schematic diagram of the operating structure.

[0041] : 1. mounting seat; 2. pump seat; 3. pump chamber; 4. gear; 5. oil chamber one; 6. oil chamber two; 7. oil circuit one; 8. oil circuit two; 9. pump oil port one; 10. execution port one; 11. mounting groove one; 12. one-way valve one; 13. pump oil port two; 14. execution port two; 15. mounting groove two; 16. one-way valve two; 17. sliding groove; 18. adjusting part; 19. filter screen; 20. overflow valve; 22. mounting hole one; 23. fixing part one; 24. mounting hole two; 25. fixing part two; 26. sealing ring; 27. vent hole; 28. sealing bolt; 29. ​​countersunk hole; 30. connecting hole. DETAILED DESCRIPTION

[0042] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0043] Example:

[0044] See also Figure 1 A hydraulic workstation includes a mounting base 1 and a pump base 2. The pump base 2 is arranged relative to the mounting base 1 in front and rear. The pump base 2 is located on the side in front of the mounting base 1 relative to the mounting base 1. The pump base 2 covers the mounting base 1, and the pump base 2 and the mounting base 1 are detachably connected.

[0045] See also Figure 2 The specific detachable connection method between the pump seat 2 and the mounting seat 1 can be to open a countersunk hole 29 in the pump seat 2, and there are four countersunk holes 29, which are distributed along the four corners, and each countersunk hole 29 passes through the end face of the pump seat 2 on the side away from the mounting seat 1, and the mounting seat 1 The end face of one side close to the pump seat 2 is provided with an equal number of connecting holes 30 at the position corresponding to the countersunk hole 29, and each connecting hole 30 is connected to each countersunk hole 29 in a one-to-one correspondence. The pump seat 2 is connected to the mounting seat 1 at the connecting hole 30 after the fixing bolt passes through the countersunk hole 29, and the bolt head of the fixing bolt rests on the step surface in the countersunk hole 29.

[0046] The mounting base 1 is provided with a vent hole 27, one end of the vent hole 27 penetrates through to the upper end surface of the mounting base 1 to form a hole 1, and the other end of the vent hole 27 penetrates through to the end surface of the mounting base 1 on the side where the pump base 2 is provided to form a hole 2, and the vent hole 27 is connected to a sealing bolt 28, and the sealing bolt 28 is threadedly connected to the hole 1 of the vent hole 27. When the sealing bolt 28 is loosened, the hole 1 of the vent hole 27 is opened to discharge the internal accumulated gas from the hole 2 along the vent hole 27 to the outside of the device.

[0047] See also Figure 3 and Figure 4A pump chamber 3 is formed between the pump seat 2 and the mounting seat 1. This example shows that the pump chamber 3 is formed on the pump seat 2. The pump chamber 3 is opened on the end surface of the pump seat 2 close to the mounting seat 1. When the pump seat 2 is installed on the mounting seat 1, the pump chamber 3 faces the mounting seat 1 to block the opening of the pump chamber 3. Two gears 4 are rotatably connected in the pump chamber 3. The rotation axes of the two gears 4 are arranged in the horizontal direction and are parallel to each other. The two gears 4 are relatively distributed up and down and mesh with each other, so that the rotation of one gear 4 can drive the other gear 4 to rotate synchronously; the two gears 4 are separated by an oil chamber 1 5 and an oil chamber 2 6. The oil chamber 1 5 and the oil chamber 2 6 cooperate to provide a space for the oil. The bottoms of the oil chamber 1 5 and the oil chamber 2 6 are higher than the pump chamber 3, so that the inner wall of the pump chamber 3 has a larger clamping surface for the gear 4 to improve stability.

[0048] See also Figure 2 and Figure 5 An oil circuit 1 7 and an oil circuit 2 8 are provided in the mounting seat 1. The end of the oil circuit 1 7 close to the pump chamber 3 has an oil pump port 1 9, and the end of the oil circuit 2 8 close to the pump chamber 3 has an oil pump port 2 13. The positions of the oil pump port 1 9 and the oil pump port 2 13 correspond to the positions of the oil chamber 1 5 and the oil chamber 2 6 one by one. The oil circuit 1 7 is connected to the oil chamber 1 5 through the oil pump port 1 9, and the oil circuit 2 8 is connected to the oil chamber 2 6 through the oil pump port 2 13.

[0049] The end of the oil circuit 1 7 away from the pump chamber 3 has an actuator port 10, and the end of the oil circuit 2 8 away from the pump chamber 3 has an actuator port 2 14. The actuator port 10 and the actuator port 2 14 are both passed through the lower end surface of the mounting base 1. The ends of the oil circuit 1 7 and the oil circuit 2 8 away from the pump chamber 3 are used to connect the actuator. The actuator can have two chambers, a rodless chamber and a rod chamber, and both chambers can contain oil. The oil circuit 1 7 is connected to the rodless chamber of the actuator through the actuator port 10, and the oil circuit 2 8 is connected to the rod chamber of the actuator through the actuator port 2 14.

[0050] A mounting groove 2 15 is provided in the mounting seat 1, and the mounting groove 2 15 is connected between the execution port 2 14 and the pump oil port 2 13. A mounting hole 24 is provided in the mounting seat 1, and the mounting hole 24 is located at a position of the side wall of the mounting seat 1 corresponding to the mounting groove 2 15, and a one-way valve 2 16 is installed in the mounting groove 2 15. The one-way valve 2 16 is installed in the mounting groove 2 15 through the opening of the mounting hole 24. The one-way valve 2 16 is used for one-way conduction of oil from the pump oil port 2 13 toward the execution port 2 14. The one-way valve 2 16 has a through groove 1 at one end close to the regulating member 18, and the oil is guided through the through groove 1. The mounting hole 24 is connected to a fixing member 25, and the fixing member 25 blocks the mounting hole 24 to seal the mounting groove 25, thereby realizing the built-in one-way valve 2 16.

[0051] A mounting groove 11 is provided in the mounting seat 1, and the mounting groove 11 is connected between the execution port 10 and the pump oil port 19. A one-way valve 12 is installed in the mounting groove 11, and the one-way valve 12 is used for one-way conduction of oil from the pump oil port 9 toward the execution port 10. The one-way valve 12 has a through groove 2 at one end close to the adjusting member 18, and the oil is guided through the through groove 2. The one-way valve 12 and the one-way valve 2 16 cooperate with each other to control the oil flow; the mounting groove 11 and the mounting groove 2 15 are relatively distributed, and a sliding groove 17 is connected between the mounting groove 11 and the mounting groove 2 15, and an adjusting member 18 is slidingly connected in the sliding groove 17, and the sliding direction of the adjusting member 18 is perpendicular to the rotation axis of the gear 4 along the horizontal direction.

[0052] The mounting seat 1 is provided with a mounting hole 22, which is located on the side wall of the mounting seat 1 away from the mounting hole 24, and the mounting hole 22 is connected to the position of the mounting groove 11. The one-way valve 12 and the adjusting member 18 are respectively installed in the mounting hole 22 and the sliding groove 17 through the opening of the mounting hole 22. The mounting hole 22 is connected with a fixing member 23, which blocks the mounting hole 22 to make the mounting groove 11 sealed, thereby realizing the internalization of the one-way valve 12 and the adjusting member 18.

[0053] Both the fixing member 1 23 and the fixing member 25 are provided with sealing rings 26. When the fixing member 1 23 is connected to the mounting hole 1 22, one sealing ring 26 is pressed tightly between the fixing member 1 23 and the mounting seat 1, and the sealing ring 26 is used to block the oil from escaping from the gap between the fixing member 1 23 and the mounting hole 1 22. When the fixing member 25 is connected to the mounting hole 24, another sealing ring 26 is pressed tightly between the fixing member 25 and the mounting seat 1, and the sealing ring 26 is used to block the oil from escaping from the gap between the fixing member 25 and the mounting hole 24.

[0054] See also Figure 5 and Figure 6 When the two gears 4 stop running, the one-way valve 12 and the one-way valve 2 16 cooperate to block the oil flow; when the two gears 4 are running, the driving oil supplies oil to the oil circuit 7, and the oil enters through the pump oil port 9 and is conducted along the oil circuit 7 toward the execution port 10. When the oil is conducted into the installation groove 11, the oil increases the oil pressure in the installation groove 11. The oil pushes the one-way valve 12 to be triggered due to the oil pressure, and the one-way valve 12 opens, allowing the oil to pass through the one-way valve 12 is connected to the actuator port 10, and then enters the rodless cavity of the actuator through the actuator port 10. At the same time, the oil will push the adjusting member 18 to slide along the sliding groove 17 due to the oil pressure. The adjusting member 18 slides close to the one-way valve 16. The adjusting member 18 contacts the one-way valve 16 and triggers the one-way valve 16, allowing the oil in the rod cavity of the actuator to pass through the actuator port 14 and the one-way valve 16, and flow back to the pump oil port 13 along the oil path 8. At this time, the pump oil port 13 discharges oil.

[0055] On the contrary, when the two gears 4 rotate in the opposite direction, the driving oil supplies oil to the oil circuit 2 8. The oil enters through the pump oil port 2 13 and is conducted along the oil circuit 2 8 toward the direction of the execution port 2 14. When the oil is conducted into the installation groove 2 15, the oil increases the oil pressure in the installation groove 2 15. The oil pushes the one-way valve 2 16 to be triggered due to the oil pressure. The one-way valve 2 16 opens, allowing the oil to pass through the one-way valve 2 16 to be conducted to the execution port 2 14, and then enter the actuator through the execution port 2 14. In the rod cavity, at the same time, the oil will push the adjusting member 18 to slide along the sliding groove 17 due to the oil pressure, and the adjusting member 18 slides close to the one-way valve 12. The adjusting member 18 contacts the one-way valve 12 and triggers the one-way valve 12, allowing the oil in the rodless cavity of the actuator to pass through the actuator port 10 and the one-way valve 12, and flow back to the pump oil port 9 along the oil path 7. At this time, the pump oil port 9 discharges oil, thereby realizing the continuous adjustment of the oil in the actuator chamber, and then realizing the reciprocating drive of the actuator.

[0056] The mounting base 1 is provided with a filter screen 19 , and two filter screens 19 are provided. The two filter screens 19 correspond to the positions of the execution port 1 10 and the execution port 2 14 one by one, and the filter screens 19 cover the openings of the execution port 1 10 and the execution port 2 14 respectively.

[0057] The mounting seat 1 is provided with a relief valve 20, and two relief valves 20 are provided. Both relief valves 20 are located at the upper end of the mounting seat 1. The two relief valves 20 correspond to oil circuit 1 7 and oil circuit 2 8 one by one. One relief valve 20 can open oil circuit 1 7, and the other relief valve 20 can open oil circuit 2 8. The two relief valves 20 cooperate with each other to control the maximum working oil pressure of the hydraulic system. When the oil pressure exceeds the set value, the two relief valves 20 are opened to discharge the excess hydraulic oil to prevent damage caused by excessive system pressure.

[0058] The specific working process of this program is as follows:

[0059] The present technical solution is achieved by directly mounting a pump seat 2 on a mounting seat 1, a pump chamber 3 is formed between the pump seat 2 and the mounting seat 1, two gears 4 are rotatably connected in the pump chamber 3, oil chamber 1 5 and oil chamber 2 6 are divided into two independent chambers by two gears 4, ensuring that the oil flows effectively in the pump chamber 3, the two gears 4 are meshed with each other so that driving one of the gears 4 to rotate drives the other gear 4 to rotate synchronously, when the two gears 4 rotate, the oil in the oil chamber 1 5 is driven and the oil is led along the oil path 1 7 to the actuator to realize oil supply, and the oil of the actuator is led along the oil path 2 8 toward the direction close to the oil chamber 2 6 to realize oil discharge, when the two gears 4 rotate in opposite directions, the oil circulates in the same reverse direction along the same path to realize alternating oil supply, the two gears 4 are hidden between the pump seat 2 and the mounting seat 1, the pump seat 2 can tightly cover the pump chamber 3, ensure the sealing of the pump chamber 3, and improve the compactness between the pump seat 2 and the mounting seat 1.

[0060] The above shows and describes the basic principle and main features of the technical solution and the advantages of the technical solution. The technicians in this industry should understand that the technical solution is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, the technical solution will have various changes and improvements, which fall within the scope of the technical solution to be protected. The scope of protection claimed by the technical solution is defined by the attached claims and their equivalents.

Claims

1. A hydraulic workstation, comprising a mounting base (1) and a pump base (2) arranged on the mounting base (1), characterized in that: The pump seat (2) is covered on the mounting seat (1), and a pump cavity (3) is formed between the pump seat (2) and the mounting seat (1). Two gears (4) are rotatably connected in the pump cavity (3), and the two gears (4) are meshed with each other. The two gears (4) are separated into an oil cavity (5) and an oil cavity (6). The mounting seat (1) is provided with an oil circuit (7) and an oil circuit (8). The oil circuit (7) and the oil circuit (8) are respectively connected to the oil cavity (5) and the oil cavity (6) in a one-to-one correspondence. The ends of the oil circuit (7) and the oil circuit (8) away from the pump cavity (3) are used for connecting an actuator.

2. The hydraulic workstation according to claim 1, characterized in that: The end of the oil circuit (7) close to the pump chamber (3) is provided with an oil pump port (9), and the end of the oil circuit (7) away from the pump chamber (3) is provided with an execution port (10). The mounting seat (1) is also provided with a mounting groove (11), and the mounting groove (11) is connected between the execution port (10) and the oil pump port (9). A one-way valve (12) is installed in the mounting groove (11), and the one-way valve (12) allows the oil pump port (9) to be unidirectionally conducted toward the execution port (10); The second oil circuit (8) has a second pump oil port (13) at one end close to the pump chamber (3), and has a second execution port (14) at one end of the second oil circuit (8) away from the pump chamber (3). The mounting seat (1) is further provided with a second mounting groove (15). The second mounting groove (15) is connected between the second execution port (14) and the second pump oil port (13). A second check valve (16) is installed in the second mounting groove (15). The second check valve (16) allows the second pump oil port (13) to be unidirectionally conducted toward the second execution port (14). The second installation groove (15) is arranged opposite to the first installation groove (11), and a sliding groove (17) is connected between the first installation groove (11) and the second installation groove (15), and an adjusting member (18) is slidingly connected in the sliding groove (17). When the second pump oil port (13) discharges oil, the first pump oil port (9) supplies oil toward the first execution port (10) to push the adjusting member (18) toward the second check valve (16). The adjusting member (18) triggers the second check valve (16) to make the second execution port (14) conduct toward the second pump oil port (13) for oil reflux, and the first check valve (12) is triggered to circulate the oil. When the oil pump port 1 (9) discharges oil, the execution port 2 (14) supplies oil toward the oil pump port 2 (13) to push the adjustment member (18) to move toward the one-way valve 1 (12), and the adjustment member (18) triggers the one-way valve 1 (12) to make the execution port 1 (10) conduct toward the oil pump port 1 (9) for oil liquid to flow back, and the one-way valve 2 (16) is triggered to supply oil liquid to flow out.

3. The hydraulic workstation according to claim 2, characterized in that: The mounting seat (1) is provided with a filter screen (19), and two filter screens (19) are provided. The two filter screens (19) are arranged in a one-to-one correspondence at the execution port 1 (10) and the execution port 2 (14).

4. The hydraulic workstation according to claim 1, characterized in that: The mounting seat (1) is provided with two overflow valves (20), and the two overflow valves (20) are arranged in the oil circuit 1 (7) and the oil circuit 2 (8) in a one-to-one correspondence.

5. The hydraulic workstation according to claim 2, characterized in that: The mounting seat (1) is provided with a mounting hole (22), the mounting hole (22) being in communication with the mounting groove (11), the mounting hole (22) being connected with a fixing member (23), the fixing member (23) being removed to open the mounting groove (11) for installation of the one-way valve (12) and the adjusting member (18).

6. The hydraulic workstation according to claim 5, characterized in that: The mounting seat (1) is provided with a second mounting hole (24), the second mounting hole (24) is in communication with the second mounting groove (15), the second mounting hole (24) is connected with a second fixing member (25), and the second fixing member (25) is removed so that the second mounting groove (15) is opened for the installation of the second one-way valve (16).

7. The hydraulic workstation according to claim 6, characterized in that: The fixing member 1 (23) and the fixing member 2 (25) are both sleeved with sealing rings (26), and the two sealing rings (26) are respectively pressed tightly between the fixing member 1 (23) and the fixing member 2 (25) and the mounting seat (1).

8. The hydraulic workstation according to claim 1, characterized in that: The mounting seat (1) is provided with a vent hole (27), the vent hole (27) is connected with a sealing bolt (28), and the sealing bolt (28) is loosened to allow gas to be discharged.

9. The hydraulic workstation according to claim 1, characterized in that: The pump seat (2) has a countersunk hole (29), and the mounting seat (1) is provided with connecting holes (30) at positions corresponding to the countersunk holes (29). The countersunk holes (29) are used for fixing bolts to pass through and then be threadedly connected to the connecting holes (30). The pump seat (2) and the mounting seat (1) are detachably connected.

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