Hydraulic station for testing hydraulic cylinder

Abstract

The utility model provides a hydraulic station for testing a hydraulic cylinder, which belongs to the technical field of hydraulic stations and comprises a testboard arranged above a base station, an oil storage tank arranged between the base station and the testboard, an oil pump fixedly mounted at the top of the base station and provided with an input end connected with the oil storage tank, and an oil pipeline fixedly connected with an output end of the oil pump and extending to the top of the testboard. A bearing seat is arranged at the top of the test table, a limiting clamping seat is slidably arranged above the bearing seat, a telescopic piece located above the limiting clamping seat is arranged on the test table, a movable plate is driven to move through the movable end of the telescopic piece, and the outer wall of a cylinder barrel of a hydraulic cylinder is attached to the inner walls of the two bearing seats; then the locking assembly drives the two limiting clamping seats to move relatively, so that the cylinder barrel of the hydraulic cylinder is fixed to the bearing seat, the stability of the hydraulic cylinder in the testing process is guaranteed, position deviation of the hydraulic cylinder in the testing process is avoided, and then the accuracy of the testing result of the hydraulic cylinder is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic stations, in particular to a hydraulic cylinder testing hydraulic station. Background Art

[0002] Hydraulic cylinder is an important energy conversion device. It has a simple structure and working principle, works reliably, and can provide a relatively large driving force. Therefore, it is widely used in industry. Since hydraulic cylinders are mainly used in areas with large loads and have high requirements for various performances such as control accuracy, the performance of hydraulic cylinders directly determines the accuracy and safety of the transmission system. Therefore, it is necessary to test the hydraulic cylinder to ensure the accuracy of hydraulic cylinder control.

[0003] Related technology (publication number: CN217842224U) discloses a hydraulic cylinder testing hydraulic station, which discloses a technical solution: the working oil is delivered to the high-pressure distributor, which divides the working oil circuit into 2×4 circuits, each of which is provided with an independent high-pressure ball valve, and a pressure gauge for pressure measurement is installed to detect the working pressure of each working oil circuit in real time. The high-pressure distributor can connect 1-4 hydraulic cylinders at the same time for testing, thereby improving the actual testing efficiency. Through the combination design of the No. 1 pressure relief ball valve and the No. 2 pressure relief ball valve, the pressure of the two working oil circuits can be manually relieved, and the pipeline between the hydraulic pump and the oil tank can be cut off through the manual butterfly valve of the oil suction pipe, thereby facilitating the maintenance and replacement of the motor pump group.

[0004] In the above-mentioned disclosed technical solutions, the following problems were found in the related technologies: during the test of the hydraulic cylinder, the hydraulic cylinder needs to be placed on the test bench. The specifications of the hydraulic cylinder required in different working environments are also different. During the test of the hydraulic cylinder, the stability of the position of the hydraulic cylinder needs to be ensured. Once the position is offset, it will affect the accuracy of the test results. For this reason, we propose a hydraulic cylinder test hydraulic station.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include prior art information that does not constitute known to ordinary technicians in the field. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology. In order to solve the problem of stability of the hydraulic cylinder test process existing in the above-mentioned prior art, the utility model provides a hydraulic cylinder test hydraulic station, which adopts a hydraulic cylinder test stabilization structure combined with a test structure to achieve the effect of improving the accuracy of the hydraulic cylinder test structure. Its specific technical solution is:

[0007] A hydraulic cylinder testing hydraulic station comprises a test bench arranged above a base, an oil storage tank is arranged between the base and the test bench, an oil pump whose input end is connected to the oil storage tank is arranged on the top of the base, an output end of the oil pump is fixedly connected to an oil pipeline extending to the top of the test bench, a bearing seat is arranged on the top of the test bench, a limit seat is slidably arranged above the bearing seat, a telescopic member located above the limit seat is arranged on the test bench, and a locking component for driving the limit seat to lock the hydraulic cylinder is arranged at the movable end of the telescopic member.

[0008] In the above technical solution, a protective cover is rotatably provided on the side wall of the test bench, and an opening and closing component for driving the protective cover to rotate is provided on the test bench.

[0009] The opening and closing assembly includes a rotating shaft rotatably arranged on the side wall of the test bench, the protective cover is sleeved on the outside of the rotating shaft through a connecting seat, a gear is sleeved on the outer wall of the rotating shaft, and a rack meshing with the gear is slidably arranged on the test bench, and a displacement assembly driving the rack to move is arranged on the test bench.

[0010] The displacement assembly includes an active screw rotatably arranged on the side wall of the test bench, the outer wall of the active screw is threadedly connected with a moving seat, and the moving seat is fixedly connected to the rack.

[0011] The movable end of the telescopic member is fixedly connected to a movable plate, the movable plate and the locking assembly are fixedly connected via a sliding rod, a fixing frame is fixedly installed on the top of the test bench, the sliding rod passes through the inner cavity of the fixing frame, and the outer cylinder of the telescopic member is embedded in the inner cavity of the fixing frame.

[0012] The locking assembly includes a lead screw rotatably arranged at the end of the slide rod, and the lead screw is located at one end of the slide rod away from the movable plate, the outer wall of the lead screw is symmetrically threaded with a locking seat, and the locking seat is connected to the limit clamping seat.

[0013] One end of the slide rod away from the movable plate is fixedly connected to a guide frame, and a slide groove parallel to the lead screw is provided on the guide frame. The locking seat and the limit card seat are respectively arranged on both sides of the guide frame, and the limit card seat and the locking seat are connected by a slide column slidably arranged on the inner wall of the slide groove.

[0014] The two bearing seats are symmetrically slidably arranged on the top of the test bench, a support seat is symmetrically arranged on the top of the test bench, and the two bearing seats are located between the two support seats. The bearing seats and the support seats on the same side are connected by elastic members, and the side walls of the bearing seats are fixedly installed with anti-deflection guide rods that penetrate the inner cavity of the support seats, and the elastic member is sleeved on the outside of the anti-deflection guide rods.

[0015] The top of the test bench is evenly provided with directional guide grooves, and the bottom of the bearing seat is provided with a directional sliding block which is slidably arranged on the inner wall of the directional guide groove and is fixedly installed.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the hydraulic cylinder test hydraulic station:

[0017] 1. The two limit clamps are driven to move relative to each other through the locking assembly, so as to fix the cylinder barrel of the hydraulic cylinder on the bearing seat. Then, the working oil inside the oil storage tank is introduced into the high-pressure distributor from the oil pipeline through the oil pump. The hydraulic cylinder is tested through the high-pressure distributor. The hydraulic cylinder is fixed in three directions to ensure the stability of the hydraulic cylinder test process, avoid position deviation during the hydraulic cylinder test process, and thus ensure the accuracy of the hydraulic cylinder test results.

[0018] Second, the protective cover is rotated by the snap assembly to open and close the test bench. During the operation, the protective cover is closed to prevent the test process from being affected by the external environment, thereby ensuring the accuracy of the test results. The opening and closing of the protective cover is controlled by the snap assembly, making the operation process more convenient.

[0019] 3. The rack is driven to move in the vertical direction through the displacement component, so that the gear meshing with the rack rotates, and the gear drives the rotating shaft to rotate, so that the connecting seat drives the protective cover to rotate with the rotating shaft, thereby controlling the opening and closing of the protective cover, and bringing convenience to the test operation process of relevant personnel.

[0020] 4. In the process of rotating the lead screw to adjust the positions of the two locking seats, the locking seat drives the slide column to slide against the inner wall of the slide groove, and at the same time, the slide column drives the limit card seat to move. The slide groove parallel to the lead screw ensures the stability of the moving direction of the limit card seat, avoids position deviation, and thus ensures the stability of the hydraulic cylinder test process, and then ensures the accuracy of the test results.

[0021] 5. In the process of clamping and fixing the hydraulic cylinder by two limit clamps, the elastic deformation of the elastic member reduces the force acting on the surface of the hydraulic cylinder, thereby providing a protective effect on the surface of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a hydraulic cylinder test hydraulic station of the utility model. Figure Ⅰ ;

[0023] Figure 2 This is a schematic diagram of the structure of a hydraulic cylinder test hydraulic station of the utility model. Figure II ;

[0024] Figure 3 The structure explosion diagram of the test bench of the utility model Figure Ⅰ ;

[0025] Figure 4 The structure explosion diagram of the test bench of the utility model Figure II ;

[0026] Figure 5 for Figure 3 A local enlarged view of point A;

[0027] in, Figures 1 to 5 The correspondence between the figure numbers and the component names is: 1-test bench, 2-protective cover, 3-base, 4-oil storage tank, 5-bearing seat, 6-oil pump, 7-fixed frame, 8-support seat, 9-rotating shaft, 10-active screw, 11-rack, 12-gear, 13-moving seat, 14-telescopic member, 15-oil pipeline, 16-enclosure, 17-connecting seat, 18-bracket, 19-directional rod, 20-slide groove, 21-guide frame, 22-limiting card seat, 23-sliding column, 24-directional sliding block, 25-anti-deflection guide rod, 26-elastic member, 27-movable plate, 28-slide rod, 29-locking seat, 30-directional guide groove, 31-screw, 32-rubber pad. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The following is a combination of specific implementation cases and attached Figure 1 -Attached Figure 5 The present invention is further described below, but the present invention is not limited to these embodiments.

[0030] A hydraulic cylinder test hydraulic station includes a test bench 1 arranged above a base 3, and an oil storage tank 4 is arranged between the base 3 and the test bench 1. The oil storage tank 4 is fixedly installed on the top of the base 3, and the test bench 1 is fixedly installed on the top of the oil storage tank 4. An oil pump 6 whose input end is connected to the oil storage tank 4 is fixedly installed on the top of the base 3, and an oil pipeline 15 extending to the top of the test bench 1 is fixedly connected to the output end of the oil pump 6. The oil pipeline 15 is laid on the top of the base 3 through a fixed seat, and the oil pipeline 15 transports the working oil in the oil storage tank 4 to the test bench 1 through the oil pump 6, and then divides the working oil through a high-pressure distributor, and then the hydraulic cylinder is tested through the high-pressure distributor. The oil pump 6 is electrically connected to an external power supply through a wire.

[0031] A bearing seat 5 is arranged on the top of the test bench 1, and a limit seat 22 is slidably arranged above the bearing seat 5. A telescopic member 14 is arranged on the test bench 1 and is located above the limit seat 22. The movable end of the telescopic member 14 is provided with a locking assembly that drives the limit seat 22 to lock the hydraulic cylinder. The telescopic member 14 can be an electric telescopic rod, and the outer cylinder of the telescopic member 14 is fixedly embedded in the top inner cavity of the fixed frame 7, and the telescopic member 14 is at a position perpendicular to the top of the fixed frame 7. The movable end of the telescopic member 14 is vertically upward and vertically fixed to the bottom of the movable plate 27. The upper end of the slide rod 28 is fixedly installed at the bottom of the movable plate 27, and the lower end of the slide rod 28 passes through the top of the fixed frame 7 and is connected to the locking assembly. The locking assembly is made to move up and down with the movable end of the telescopic member 14 above the bearing seat 5.

[0032] When testing the hydraulic cylinder, place the barrel end of the hydraulic cylinder between the two bearing seats 5, and then drive the movable plate 27 to move through the movable end of the telescopic member 14, so that the movable plate 27 drives the locking assembly to move through the slide rod 28, so that the locking assembly drives the limit clamp 22 to move toward the barrel end of the hydraulic cylinder. The outer wall of the barrel of the hydraulic cylinder is attached to the inner wall of the two bearing seats 5, and then the two limit clamps 22 are driven to move relative to each other through the locking assembly, so that the barrel of the hydraulic cylinder is fixed on the bearing seat 5. After that, the working oil inside the oil storage tank 4 is introduced into the high-pressure distributor from the oil pipeline 15 through the oil pump 6, and the hydraulic cylinder is tested through the high-pressure distributor. The stability of the hydraulic cylinder test process is ensured, the position deviation of the hydraulic cylinder test process is avoided, and the accuracy of the hydraulic cylinder test results is ensured.

[0033] Among them, the side wall of the test bench 1 is rotatably provided with a protective cover 2, and the test bench 1 is provided with an opening and closing component for driving the protective cover 2 to rotate. An enclosure 16 is vertically fixedly installed at the edge of the rear side of the test bench 1. Two mutually parallel supports are vertically fixedly installed on the rear surface of the enclosure 16, and bearings are embedded and installed on the opposite surfaces of the two supports. The two ends of the rotating shaft 9 are respectively embedded and installed inside the two bearings. The connecting seat 17 is fixedly sleeved on the outside of the rotating shaft 9 through a mounting hole that is horizontally opened and penetrates the inner cavity, and the connecting seat 17 is fixedly installed on the outer wall of the protective cover 2, so that the protective cover 2 rotates with the rotating shaft 9 through the connecting seat 17.

[0034] The protective cover 2 is rotated by the snap-fit ​​assembly, so that the test bench 1 is opened and closed. During the operation, the protective cover 2 is closed to prevent the test process from being affected by the external environment, thereby ensuring the accuracy of the test result. The opening and closing of the protective cover 2 is controlled by the snap-fit ​​assembly, making the operation process more convenient. The side wall of the test bench 1 is rotatably provided with the protective cover 2, and the test bench 1 is provided with an opening and closing assembly for driving the protective cover 2 to rotate.

[0035] The enclosure 16 is fixedly installed vertically at the edge of the rear side of the test bench 1. Two mutually parallel supports are fixedly installed vertically on the rear surface of the enclosure 16, and bearings are embedded and installed on the opposite surfaces of the two supports. The two ends of the rotating shaft 9 are respectively embedded and installed inside the two bearings. The connecting seat 17 is fixedly sleeved on the outside of the rotating shaft 9 through a mounting hole that is horizontally opened and penetrates the inner cavity, and the connecting seat 17 is fixedly installed on the outer wall of the protective cover 2, so that the protective cover 2 rotates with the rotating shaft 9 through the connecting seat 17.

[0036] The protective cover 2 is rotated by the snap assembly, so that the test bench 1 can be opened and closed. During the operation, the protective cover 2 is closed to prevent the test process from being affected by the external environment, thereby ensuring the accuracy of the test results. The opening and closing of the protective cover 2 is controlled by the snap assembly, making the operation process more convenient.

[0037] The opening and closing assembly includes a rotating shaft 9 rotatably arranged on the side wall of the test bench 1, a protective cover 2 is sleeved on the outside of the rotating shaft 9 through a connecting seat 17, a gear 12 is sleeved on the outer wall of the rotating shaft 9, and a rack 11 meshing with the gear 12 is slidably arranged on the test bench 1. One end of the rotating shaft 9 extends through the inner cavity of the support to the outside, and the gear 12 is fixedly sleeved on the outer wall of the rotating shaft 9 extending outside the support through a mounting hole opened in the center. A displacement assembly is arranged on the test bench 1 to drive the rack 11 to move. The rack 11 is moved up and down on the same side as the gear 12 through the displacement assembly.

[0038] The rack 11 is driven to move in the vertical direction through the displacement assembly, so that the gear 12 meshing with the rack 11 rotates, and the gear 12 drives the rotating shaft 9 to rotate, so that the connecting seat 17 drives the protective cover 2 to rotate with the rotating shaft 9, thereby controlling the opening and closing of the protective cover 2, thereby bringing convenience to the test operation process of relevant personnel.

[0039] It is worth noting that the displacement assembly includes an active screw 10 rotatably arranged on the side wall of the test bench 1, and the outer wall of the active screw 10 is threadedly connected with a moving seat 13, and the moving seat 13 is fixedly connected to the rack 11. A bracket 18 is fixedly mounted on the side wall of the enclosure 16, and bearings are embedded and mounted on both sides of the inner wall of the bracket 18, and the two ends of the active screw 10 are respectively embedded and mounted inside the two bearings. The moving seat 13 is connected to the active screw 10 through a threaded through hole opened longitudinally. The motor is fixed to the bracket 18 through a machine cover, and the output shaft of the motor passes through the bracket 18 and is fixedly connected to one end of the active screw 10. The motor is electrically connected to an external power supply through a wire.

[0040] The two ends of the directional rod 19 are fixedly mounted on the inner walls of the two sides of the bracket 18. The directional rod 19 is in a position parallel to the active screw 10. The moving seat 13 is movably sleeved on the outside of the directional rod 19. When the active screw 10 is rotated to adjust the position of the rack 11, the moving seat 13 is simultaneously fitted on the outside of the directional rod 19 and slides. The directional rod 19 parallel to the active screw 10 ensures the stability of the moving direction of the moving seat 13, avoids position deviation, and thus ensures the accuracy of the meshing position of the rack 11 and the gear 12.

[0041] When driving the protective cover 2 to open and close, the active screw 10 is driven to rotate through the output shaft of the motor, so that the movable seat 13 threadedly connected to the active screw 10 drives the rack 11 to move, and the gear 12 meshing with the rack 11 drives the rotating shaft 9 to rotate, so that the connecting seat 17 drives the protective cover 2 to rotate along with the rotating shaft 9, thereby controlling the opening and closing of the protective cover 2.

[0042] The movable end of the telescopic member 14 is fixedly connected to a movable plate 27, and the movable plate 27 is fixedly connected to the locking assembly via a sliding rod 28. A fixed frame 7 is fixedly installed on the top of the test bench 1, and the sliding rod 28 passes through the inner cavity of the fixed frame 7, and the outer tube of the telescopic member 14 is embedded in the inner cavity of the fixed frame 7.

[0043] The slide bar 28 slides in the through hole of the fixing frame 7, and the two slide bars 28 on the same side are respectively located on both sides of the directional guide groove 30. The fixing frame 7 is fixedly installed on the top of the test bench 1, and the fixing frame 7 is located above the bearing seat 5. Makeshift grooves are opened on both sides of the fixing frame 7 to facilitate the placement of the hydraulic cylinder.

[0044] In addition, the locking assembly includes a lead screw 31 rotatably arranged at the end of the slide bar 28, and the lead screw 31 is located at the end of the slide bar 28 away from the movable plate 27, and the outer wall of the lead screw 31 is symmetrically threadedly connected with a locking seat 29, and the locking seat 29 is connected to the limit clamping seat 22. The lead screw 31 has two parts of external threads with opposite threads and the same pitch from the center to both sides, and the two locking seats 29 with triangular longitudinal cross-sections are respectively connected to the two parts of the external threads of the lead screw 31 by opening threaded through holes penetrating the inner cavity. The two locking seats 29 are moved relative to or back to back by rotating the lead screw 31.

[0045] The base frames are vertically fixed at both side edges of the guide frame 21, and bearings are embedded and installed on the inner walls of both sides of the base frames. The two ends of the lead screw 31 are respectively embedded and installed inside the two bearings. The motor is fixed on the surface of one of the base frames through a machine cover, and the output shaft of the motor passes through the inner cavity of the base frame and is fixedly connected to one end of the lead screw 31. The motor is electrically connected to an external power supply through a wire.

[0046] In addition, one end of the slide bar 28 away from the movable plate 27 is fixedly connected to the guide frame 21, and the guide frame 21 is provided with a slide groove 20 parallel to the lead screw 31. The locking seat 29 and the limit clamping seat 22 are respectively arranged on both sides of the guide frame 21, and the limit clamping seat 22 and the locking seat 29 are connected by a slide column 23 slidably arranged on the inner wall of the slide groove 20. The rubber pads 32 are fixedly installed on the opposite surfaces of the two limit clamping seats 22, and the rubber pads 32 can increase the friction between the contact surface of the hydraulic cylinder and the limit clamping seat 22, thereby improving the stability of the hydraulic cylinder when it is fixed.

[0047] Four slide bars 28 are vertically fixedly installed at the bottom of the movable plate 27. The four slide bars 28 are distributed on both sides of the telescopic member 14. Every two slide bars 28 are located on both sides of the slide slot 20. The slide slot 20 is a through slot that penetrates the guide frame 21. The lower end of the slide bar 28 is vertically fixed to the top of the guide frame 21. The locking seat 29 slides on the top of the guide frame 21, and the limit clamping seat 22 slides on the bottom of the guide frame 21. The two ends of the slide column 23 are respectively vertically fixed on the opposite surfaces of the limit clamping seat 22 and the locking seat 29. And the slide column 23 slides on the inner wall of the slide slot 20.

[0048] In the process of rotating the lead screw 31 to adjust the positions of the two locking seats 29, the locking seats 29 drive the slide column 23 to slide against the inner wall of the slide groove 20, and at the same time, the limit clamping seat 22 is driven to move by the slide column 23. The slide groove 20 parallel to the lead screw 31 ensures the stability of the moving direction of the limit clamping seat 22, avoids position deviation, and thus ensures the stability of the hydraulic cylinder test process, and further ensures the accuracy of the test results.

[0049] Furthermore, two bearing seats 5 are symmetrically slidably arranged on the top of the test bench 1, and a support seat 8 is symmetrically arranged on the top of the test bench 1, and the two bearing seats 5 are located between the two support seats 8. The bearing seat 5 and the support seat 8 on the same side are connected by an elastic member 26, and an anti-deflection guide rod 25 penetrating the inner cavity of the support seat 8 is fixedly installed on the side wall of the bearing seat 5, and the elastic member 26 is sleeved on the outside of the anti-deflection guide rod 25.

[0050] The elastic member 26 can be a compression spring, and the two ends of the elastic member 26 are respectively fixedly mounted on the opposite surfaces of the bearing seat 5 and the support seat 8 on the same side. One end of the anti-deflection guide rod 25 is vertically fixedly mounted on the opposite sides of the two bearing seats 5, and the other end of the anti-deflection guide rod 25 passes through the inner cavity of the support seat 8 and extends to the outside. The elastic member 26 is movably sleeved on the outer wall of the anti-deflection guide rod 25, so that the elastic member 26 fits on the outer wall of the anti-deflection guide rod 25 to telescopically slide.

[0051] In the process of clamping and fixing the hydraulic cylinder by the two limiting clamping seats 22, the elastic deformation of the elastic member 26 reduces the force acting on the surface of the hydraulic cylinder, thereby providing a protective effect on the surface of the hydraulic cylinder.

[0052] The top of the test bench 1 is evenly provided with directional guide grooves 30, and the bottom of the bearing seat 5 is provided with a directional slider 24 slidably arranged on the inner wall of the directional guide groove 30. When the bearing seat 5 is subjected to the force of the hydraulic cylinder clamping, the bearing seat 5 drives the directional slider 24 to slide against the inner wall of the directional guide groove 30. The bearing seat 5 is prevented from being deviated in direction when subjected to force, thereby ensuring the stability of the hydraulic cylinder when it is fixed.

[0053] The present embodiment is a hydraulic cylinder testing hydraulic station, and its working principle is as follows: when testing the hydraulic cylinder, the cylinder end of the hydraulic cylinder is placed between the two bearing seats 5, and then the movable end of the telescopic member 14 drives the movable plate 27 to move, so that the movable plate 27 drives the limit clamping seat 22 to move toward the cylinder end of the hydraulic cylinder through the sliding rod 28, so that the outer wall of the cylinder of the hydraulic cylinder fits against the inner walls of the two bearing seats 5.

[0054] Then rotate the screw 31 to make the two locking seats 29 move relative to each other, so that the locking seat 29 drives the sliding column 23 to slide against the inner wall of the sliding groove 20, and at the same time drives the limiting seat 22 to move through the sliding column 23, and fixes the hydraulic cylinder through the limiting seats 22 on both sides and the supporting seat 5 at the bottom.

[0055] Afterwards, the working oil in the oil storage tank 4 is introduced into the high-pressure distributor from the oil pipeline 15 through the oil pump 6, and the hydraulic cylinder is tested through the high-pressure distributor.

[0056] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0058] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder test hydraulic station, comprising a test bench (1) arranged above a base (3), and an oil storage tank (4) arranged between the base (3) and the test bench (1), characterized in that: An oil pump (6) having an input end connected to the oil storage tank (4) is arranged on the top of the base (3); an output end of the oil pump (6) is fixedly connected to an oil pipeline (15) extending to the top of the test bench (1); a bearing seat (5) is arranged on the top of the test bench (1); a limit seat (22) is slidably arranged above the bearing seat (5); a telescopic member (14) located above the limit seat (22) is arranged on the test bench (1); and a locking component for driving the limit seat (22) to lock the hydraulic cylinder is arranged at the movable end of the telescopic member (14).

2. A hydraulic cylinder testing hydraulic station according to claim 1, characterized in that: A protective cover (2) is rotatably provided on the side wall of the test bench (1), and an opening and closing component for driving the protective cover (2) to rotate is provided on the test bench (1).

3. A hydraulic cylinder testing hydraulic station according to claim 2, characterized in that: The opening and closing assembly comprises a rotating shaft (9) rotatably arranged on a side wall of the test bench (1); the protective cover (2) is sleeved on the outside of the rotating shaft (9) via a connecting seat (17); a gear (12) is sleeved on the outer wall of the rotating shaft (9); a rack (11) meshing with the gear (12) is slidably arranged on the test bench (1); and a displacement assembly is arranged on the test bench (1) to drive the rack (11) to move.

4. A hydraulic cylinder testing hydraulic station according to claim 3, characterized in that: The displacement assembly comprises an active screw (10) rotatably arranged on a side wall of the test bench (1), an outer wall of the active screw (10) being threadedly connected to a moving seat (13), and the moving seat (13) being fixedly connected to the rack (11).

5. The hydraulic cylinder testing hydraulic station according to claim 1, characterized in that: The movable end of the telescopic member (14) is fixedly connected to a movable plate (27), the movable plate (27) and the locking assembly are fixedly connected via a sliding rod (28), a fixing frame (7) is fixedly mounted on the top of the test bench (1), the sliding rod (28) passes through the inner cavity of the fixing frame (7), and the outer tube of the telescopic member (14) is embedded in the inner cavity of the fixing frame (7).

6. A hydraulic cylinder testing hydraulic station according to claim 5, characterized in that: The locking assembly comprises a lead screw (31) rotatably arranged at the end of the slide rod (28), and the lead screw (31) is located at an end of the slide rod (28) away from the movable plate (27), and the outer wall of the lead screw (31) is symmetrically threadedly connected to a locking seat (29), and the locking seat (29) is connected to the limit clamping seat (22).

7. A hydraulic cylinder testing hydraulic station according to claim 6, characterized in that: One end of the slide rod (28) away from the movable plate (27) is fixedly connected to a guide frame (21), and a slide groove (20) parallel to the lead screw (31) is provided on the guide frame (21). The locking seat (29) and the limit clamping seat (22) are respectively arranged on both sides of the guide frame (21) in a close fit, and the limit clamping seat (22) and the locking seat (29) are connected via a slide column (23) slidably arranged on the inner wall of the slide groove (20).

8. The hydraulic cylinder testing hydraulic station according to claim 1, characterized in that: The two bearing seats (5) are symmetrically slidably arranged on the top of the test bench (1), a support seat (8) is symmetrically arranged on the top of the test bench (1), and the two bearing seats (5) are located between the two support seats (8), the bearing seats (5) and the support seats (8) located on the same side are connected via an elastic member (26), an anti-deflection guide rod (25) penetrating the inner cavity of the support seat (8) is fixedly installed on the side wall of the bearing seat (5), and the elastic member (26) is sleeved on the outside of the anti-deflection guide rod (25).

9. The hydraulic cylinder testing hydraulic station according to claim 1, characterized in that: The top of the test bench (1) is evenly provided with directional guide grooves (30), and the bottom of the bearing seat (5) is provided with a directional sliding block (24) fixedly mounted thereon and slidably arranged on the inner wall of the directional guide groove (30).

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