Onboard hydraulic valve performance test bench

Abstract

The utility model discloses an airborne hydraulic valve performance test bench, which relates to the technical field of hydraulic valves and comprises a test bench main body, a positioning plate is fixedly mounted on the inner wall of the right side of the test bench main body, the lower surface of the positioning plate is fixedly connected with a fixed box, and the upper side of the inner surface of the fixed box is fixedly connected with a transverse frame. A driving motor is fixedly installed on the rear side of the bottom of the inner surface of the fixed box, a cam is installed at the front end of the driving motor, a movable rod is rotationally connected to the front side of the surface of the protruding part of the cam, and a connecting rod is rotationally connected to the upper end of the movable rod. Compared with an existing common airborne hydraulic valve performance test bench, the airborne hydraulic valve performance test bench has the advantages that collision vibration and shaking vibration can simulate vibration conditions of a hydraulic valve working in airborne equipment to the greatest extent, so that detection indexes of various performances of the hydraulic valve after the hydraulic valve is mounted on the airborne equipment can be simulated more truly; performance test can be carried out on the hydraulic valve more accurately.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve technology, specifically to an airborne hydraulic valve performance testing bench. Background Technology

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressurized oil in a regulating valve and is typically used in combination with a solenoid regulating valve. It can be used for remote control of the on / off states of oil, gas, and water pipeline systems in hydropower stations. It is commonly used in clamping, control, and lubrication circuits. There are direct-acting and pilot-operated types, with the pilot-operated type being more common.

[0003] Existing airborne hydraulic valve performance testing benches maintain a stable state during hydraulic valve performance testing. However, when hydraulic valves are installed and used with machinery, the machinery will inevitably generate operational vibrations. In this case, the test results of hydraulic valves on the previously stable performance testing bench may not be applicable to vibration conditions. As a result, the hydraulic valves may not meet the operating requirements under vibration conditions, making it difficult for traditional testing benches to determine the true performance of hydraulic valves under actual vibration conditions. This leads to a mismatch between the data results and actual usage.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed an airborne hydraulic valve performance test bench. Utility Model Content

[0005] The purpose of this invention is to provide an airborne hydraulic valve performance testing bench to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an airborne hydraulic valve performance test bench, comprising a test bench body, a positioning plate fixedly installed on the inner right side of the test bench body, a fixed box fixedly connected to the lower surface of the positioning plate, a crossbar fixedly connected to the upper surface of the inner surface of the fixed box, a drive motor fixedly installed on the lower rear side of the inner surface of the fixed box, a cam installed at the front end of the drive motor, a movable rod rotatably connected to the front side of the protruding part of the cam, a connecting rod rotatably connected to the upper end of the movable rod, and an impact plate fixedly connected to the upper end of the connecting rod through the crossbar.

[0007] Preferably, an instrument frame is fixedly installed on the rear side of the upper surface of the test bench body, and a control component is installed on the left side of the upper surface of the test bench body.

[0008] Preferably, a connecting frame is fixedly installed on the right side of the lower surface of the test bench body, and the connecting frame is fitted onto the outside of the fixed box.

[0009] Preferably, damping spring rods are evenly distributed and fixedly installed on the four sides of the inner surface of the connecting frame, and the damping spring rods are composed of dampers and extension springs.

[0010] Preferably, the ends of the damping springs on the same side of the inner surface of the connecting frame are fixedly connected to the same energy-absorbing plate, and the surface of the energy-absorbing plate is in contact with the outer surface of the fixed box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the arrangement of a crossbeam, a drive motor, a cam, a movable rod, a connecting rod, and an impact plate, enables the drive motor to rotate the cam, which in turn pulls the lower end of the movable rod to rotate in an arc. At this time, the movable rod also pulls the connecting rod to move. However, the connecting rod, limited by the crossbeam, does not follow the movable rod in rotation, but only converts the rotational motion into a linear motion up and down. As the cam pulls the movable rod in a cyclical motion, the connecting rod also moves up and down in a cyclical reciprocating motion, causing the impact plate to continuously strike the positioning plate, causing the positioning plate to vibrate. Furthermore, when the cam rotates, due to its irregular shape, the convex end of the cam will generate centrifugal force, which will also cause the entire fixed box to shake, thereby causing the positioning plate to shake and vibrate. The collision vibration and shaking vibration can simulate the vibration of the hydraulic valve working in the airborne equipment to the greatest extent, thus more realistically simulating the performance test indicators of the hydraulic valve after it is installed in the airborne equipment, and more accurately conducting performance tests on the hydraulic valve.

[0013] 2. This utility model, through the arrangement of a connecting frame, a damping spring rod, and an energy-absorbing plate, ensures that when the fixed box itself shakes, the shaking force transmitted to all directions will push the energy-absorbing plate, thereby causing the energy-absorbing plate to move and compress the damping spring rod. The damping spring rod weakens the shaking force under the characteristics of the damper, ensuring that when the fixed box shakes, only the shaking force is transmitted to the positioning plate, preventing the overall sinking distance of the fixed box from causing shaking, which would lead to the shaking of the entire test bench body, thus ensuring the stability of the test bench body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0015] Figure 2 This is a front sectional view of the fixing box of this utility model;

[0016] Figure 3 This is a cross-sectional view of the connecting frame of this utility model.

[0017] In the diagram: 1. Main body of the test bench; 2. Positioning plate; 3. Fixing box; 4. Horizontal frame; 5. Drive motor; 6. Cam; 7. Movable rod; 8. Connecting rod; 9. Impact plate; 10. Connecting frame; 11. Damping spring rod; 12. Energy absorbing plate; 13. Instrument frame; 14. Control components. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-3 As shown, an airborne hydraulic valve performance test bench includes a test bench body 1. A positioning plate 2 is fixedly installed on the inner right side of the test bench body 1. A fixed box 3 is fixedly connected to the lower surface of the positioning plate 2. A crossbeam 4 is fixedly connected to the upper side of the inner surface of the fixed box 3. A drive motor 5 is fixedly installed on the lower rear side of the inner surface of the fixed box 3. A cam 6 is installed at the front end of the drive motor 5. A movable rod 7 is rotatably connected to the front side of the protruding part of the cam 6. A connecting rod 8 is rotatably connected to the upper end of the movable rod 7. An impact plate 9 is fixedly connected to the upper end of the connecting rod 8 through the crossbeam 4.

[0020] By adopting the above technical solution, the positioning plate 2 can be fixedly installed with the hydraulic valve device to be tested by bolts;

[0021] The drive motor 5 drives the cam 6 to rotate, and the cam 6 will pull the lower end of the movable rod 7 to rotate in an arc. At this time, the movable rod 7 will also pull the connecting rod 8 to move.

[0022] Under the limit of the crossbar 4, the connecting rod 8 will not rotate with the movable rod 7, but will only convert the rotational motion into the up and down linear motion. As the cam 6 pulls the movable rod 7 to move in a cycle, the connecting rod 8 will also move up and down in a cycle, causing the impact plate 9 to continuously hit the positioning plate 2, causing the positioning plate 2 to vibrate.

[0023] When the cam 6 rotates, due to its irregular shape, the protruding end of the cam 6 will generate centrifugal force, which will also cause the entire fixed box 3 to shake.

[0024] Furthermore, an instrument rack 13 is fixedly installed on the rear side of the upper surface of the test bench body 1, and a control component 14 is installed on the left side of the upper surface of the test bench body 1.

[0025] Furthermore, a connecting frame 10 is fixedly installed on the right side of the lower surface of the test bench body 1, and the connecting frame 10 is fitted onto the outside of the fixed box 3.

[0026] By adopting the above technical solution, the connecting frame 10 is used to fix the buffer component and provide the installation position for the buffer component.

[0027] Furthermore, damping spring rods 11 are evenly distributed and fixedly installed on the four sides of the inner surface of the connecting frame 10, and the damping spring rods 11 are composed of dampers and extension springs.

[0028] The same energy-absorbing plate 12 is fixedly connected to the end of the damping spring 11 on the same side of the inner surface of the connecting frame 10, and the surface of the energy-absorbing plate 12 is in contact with the outer surface of the fixed box 3.

[0029] By adopting the above technical solution, when the fixed box 3 shakes, the shaking force that spreads to all sides will push the energy-absorbing plate 12, thereby causing the energy-absorbing plate 12 to move and squeeze the damping spring rod 11. The damping spring rod 11 weakens the shaking force under the characteristics of the damper, ensuring that when the fixed box 3 shakes, only the shaking force is transmitted to the positioning plate 2, preventing the fixed box 3 from shaking due to the distance of its overall sinking, which would cause the entire test bench body 1 to shake.

[0030] Working Principle: When using this onboard hydraulic valve performance testing bench, firstly, the hydraulic valve to be tested is fixed on the positioning plate 2. Then, various input and output pipes are connected to the hydraulic valve, and the equipment can be started to test the hydraulic valve. During the test, the drive motor 5 drives the cam 6 to rotate. The cam 6 pulls the lower end of the movable rod 7 to rotate in an arc. At this time, the movable rod 7 also pulls the connecting rod 8 to move. However, under the limit of the crossbar 4, the connecting rod 8 will not follow the movable rod 7 to rotate, but will only convert the rotational motion into up and down linear motion. As the cam 6 pulls the movable rod 7 to rotate cyclically, the connecting rod 8 will also rotate up and down cyclically, causing the impact plate 9 to continuously hit the positioning plate 2, causing the positioning plate 2 to vibrate. Furthermore, when the cam 6 rotates, due to its irregular shape, the protruding end of the cam 6 will generate centrifugal force. The force of the impact will also cause the entire fixed box 3 to shake, which in turn will cause the positioning plate 2 to shake. The impact vibration and shaking vibration can simulate the vibration of the hydraulic valve working in the airborne equipment to the greatest extent, so as to more realistically simulate the performance test indicators of the hydraulic valve after it is installed in the airborne equipment. However, when the fixed box 3 shakes, the shaking force transmitted to the surroundings will push the energy-absorbing plate 12, which will move and squeeze the damping spring rod 11. The damping spring rod 11 weakens the shaking force under the characteristics of the damper, ensuring that when the fixed box 3 shakes, only the shaking is transmitted to the positioning plate 2, preventing the fixed box 3 from sinking and causing the entire test bench body 1 to shake, thus ensuring the stability of the test bench body 1. This is the working principle of the airborne hydraulic valve performance test bench.

Claims

1. An airborne hydraulic valve performance test bench, comprising a test bench body (1), characterized in that, A positioning plate (2) is fixedly installed on the inner right side of the main body (1) of the test bench. A fixed box (3) is fixedly connected to the lower surface of the positioning plate (2). A cross frame (4) is fixedly connected to the upper side of the inner surface of the fixed box (3). A drive motor (5) is fixedly installed on the rear side of the bottom of the inner surface of the fixed box (3). A cam (6) is installed at the front end of the drive motor (5). A movable rod (7) is rotatably connected to the front side of the protruding part of the cam (6). A connecting rod (8) is rotatably connected to the upper end of the movable rod (7). An impact plate (9) is fixedly connected to the upper end of the connecting rod (8) through the cross frame (4).

2. The airborne hydraulic valve performance test bench according to claim 1, characterized in that, An instrument rack (13) is fixedly installed on the rear side of the upper surface of the test bench body (1), and a control component (14) is installed on the left side of the upper surface of the test bench body (1).

3. The airborne hydraulic valve performance test bench according to claim 1, characterized in that, A connecting frame (10) is fixedly installed on the right side of the lower surface of the test bench body (1), and the connecting frame (10) is sleeved on the outside of the fixed box (3).

4. The airborne hydraulic valve performance test bench according to claim 3, characterized in that, The inner surface of the connecting frame (10) is uniformly distributed and fixedly installed with damping spring rods (11) on all four sides, and the damping spring rods (11) are composed of dampers and extension springs.

5. The airborne hydraulic valve performance test bench according to claim 4, characterized in that, The end of the damping spring rod (11) on the same side of the inner surface of the connecting frame (10) is fixedly connected to the same energy-absorbing plate (12), and the surface of the energy-absorbing plate (12) is in contact with the outer surface of the fixed box (3).

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