A cylinder test bench

Abstract

This invention discloses a hydraulic cylinder testing bench, relating to the field of hydraulic cylinder testing technology. Specifically, it includes: a testing bench with a slide rail at its top, a first sliding plate slidably connected inside the slide rail, and a fixed frame fixedly connected inside the slide rail; a fixed plate with a fixed groove inside, an electric push rod fixedly connected inside the fixed groove, and a first circular plate fixedly connected outside the electric push rod; the hydraulic cylinder testing bench further includes: a testing mechanism fixedly connected to the top of the first sliding plate, the testing mechanism including a fixed frame, a first telescopic rod fixedly connected inside the fixed frame, a second circular plate fixedly connected outside the first telescopic rod, and the fixed frame fixedly connected to the top of the first sliding plate; and a fixing mechanism for controlling the position of the hydraulic cylinder and the oil pipe. This hydraulic cylinder testing bench achieves the purpose of improving the efficiency of equipment use.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder testing technology, specifically to a hydraulic cylinder testing bench. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It is now widely used in engineering machinery and industrial vehicles, and is one of the main components of engineering machinery.

[0003] Current hydraulic cylinder test benches place the hydraulic cylinder on the test bench during performance testing. During the opening and closing process, the hydraulic cylinder is prone to shaking or changing position, which leads to a change in the position of the pressure point. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a hydraulic cylinder test bench, specifically comprising:

[0005] A test bench, the top of which is provided with a slide rail, a first slide plate is slidably connected inside the slide rail, and a fixing frame is fixedly connected inside the slide rail;

[0006] A fixing plate has a fixing groove inside, an electric push rod is fixedly connected inside the fixing groove, and a first circular plate is fixedly connected outside the electric push rod.

[0007] The hydraulic cylinder test bench also includes:

[0008] The testing mechanism is fixedly connected to the top of the first slide plate. The testing mechanism includes a fixed frame, a first telescopic rod is fixedly connected inside the fixed frame, and a second circular plate is fixedly connected to the outside of the first telescopic rod. The fixed frame is fixedly connected to the top of the first slide plate.

[0009] A fixing mechanism is used to control the position of the hydraulic cylinder and the hydraulic pipe. The fixing mechanism is fixedly connected to the outside of the fixing frame. The fixing mechanism includes a slide rail. A lifting plate is slidably connected inside the slide rail. A connecting plate is fixedly connected to the outside of the lifting plate. A clamping assembly is fixedly connected to the outside of the connecting plate. The slide rail is opened inside the fixing frame.

[0010] Preferably, the test bench has a first channel inside, the fixed plate has a fixed box outside, the fixed box has a vibration motor inside, the first circular plate has an impact ball fixedly connected to the outside, which is used to contact the side of the oil cylinder to test the pressure performance of the oil cylinder when it is impacted, and the lifting plate has a second channel inside.

[0011] Preferably, the fixed frame has a circular groove inside, the first telescopic rod passes through the inside of the circular groove, and multiple first telescopic rods and second circular plates are provided. The top of the fixed frame is provided with a cover plate.

[0012] Preferably, the fixing frame is externally fixedly connected to a vertical plate and a locking frame. Two vertical plates and two locking frames are provided. A third channel is opened inside the locking frame. A fixing cylinder is externally fixedly connected to the locking frame. A second telescopic rod is externally fixedly connected to the vertical plate. The second telescopic rod passes through the interior of the locking frame and the interior of the lifting plate. The second telescopic rod is engaged with the fixing cylinder.

[0013] Preferably, a fourth telescopic rod is fixedly connected to the outside of the lifting plate, and an arc-shaped buckle is rotatably connected to the outside of the fourth telescopic rod to fix the oil pipe. Two of the fourth telescopic rod and the arc-shaped buckle are provided.

[0014] Preferably, an arc-shaped base plate is fixedly connected to the top of the fixing frame, a third telescopic rod is fixedly connected to the top of the fixing frame, a top plate is fixedly connected to the top of the third telescopic rod, and an arc-shaped cover is fixedly connected to the bottom of the top plate.

[0015] Preferably, the clamping assembly includes an adjusting rod, a backing plate is fixedly connected to the outside of the adjusting rod, the backing plate is cross-shaped, a circular pad is provided on the outside of the backing plate, and the adjusting rod is fixedly connected to the outside of the connecting plate.

[0016] Preferably, a fifth telescopic rod is fixedly connected to the outside of the backing plate, a clamping plate is fixedly connected to the outside of the fifth telescopic rod, a first rubber strip is fixedly connected to the outside of the clamping plate, and four of the fifth telescopic rod and the clamping plate are provided.

[0017] Preferably, an adjusting bent rod is fixedly connected to the outside of the clamping plate, an arc-shaped fixing plate is fixedly connected to the outside of the adjusting bent rod, and a second rubber strip is fixedly connected to the outside of the arc-shaped fixing plate.

[0018] Preferably, the clamping plate has a flow groove inside, a cylinder is fixedly connected to the top of the clamping plate, and a locking ring is fixedly connected to the outside of the cylinder to limit the oil pipe head. Two cylinders and two locking rings are provided.

[0019] This invention provides a hydraulic cylinder testing bench. It has the following beneficial effects:

[0020] 1. This hydraulic cylinder test bench, through the setting of a testing mechanism and a fixing mechanism, fixes the position of the hydraulic cylinder and tests its pressure performance. During performance testing, the hydraulic cylinder is placed on the test bench. During the opening and closing process, the cylinder is prone to shaking or changing position, leading to a shift in the pressure point. Therefore, the testing mechanism and fixing mechanism are set up to fix the position of the cylinder base, and the position of the testing mechanism is adjustable to solve the above problems.

[0021] 2. This hydraulic cylinder test bench, through the setting of a testing mechanism, performs pressure tests on hydraulic cylinders. A second circular plate and contact points are set within a movable fixed frame. After the hydraulic cylinder is positioned, it is opened, and the piston rod of the cylinder contacts and presses against the contact points to test the cylinder's pressure performance. A vibration motor, a first circular plate, and an impact ball are also included in the equipment to test the pressure performance of the hydraulic cylinder when subjected to impact or vibration.

[0022] 3. This hydraulic cylinder test bench uses a fixing mechanism to secure the cylinder base and oil pipes. During performance testing, the cylinder is placed on the test bench. However, during opening and closing, the cylinder is prone to shaking or changing position, leading to a shift in the pressure point. Therefore, the fixing mechanism secures the cylinder base to address this issue. The equipment includes four oil tanks, each connected to four oil pipes. When conducting comparative tests on both sides, the corresponding oil pipe is selected. The oil pipes are changed during multiple tests to avoid prolonged use of the same oil tank and pipes, which could cause the oil temperature inside the tank to rise and affect the test results.

[0023] 4. This hydraulic cylinder test bench uses a clamping assembly to hold and fix the hydraulic cylinder base. After clamping and fixing the cylinder base, adjusting the position of the arc-shaped fixing plate can fix the two sides of the middle position of the cylinder, improving the stability of the cylinder. Flow grooves are provided in the upper and lower clamping plates to facilitate the placement of oil pipes. Two cylinders and a locking ring are installed at the top of the upper clamping plate to hold two oil pipes and fix and restrict their position. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a side view of the present invention;

[0026] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A;

[0027] Figure 4 This is a schematic diagram of the testing mechanism structure of the present invention;

[0028] Figure 5This is a schematic diagram of the fixing mechanism structure of the present invention;

[0029] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point B;

[0030] Figure 7 For the present invention Figure 5 Schematic diagram of the structure at point C;

[0031] Figure 8 This is a schematic diagram of the clamping component structure of the present invention;

[0032] Figure 9 For the present invention Figure 8 A schematic diagram of the structure at point D.

[0033] In the diagram: 1. Test bench; 2. Slide rail; 3. First slide plate; 4. Test mechanism; 401. Fixed frame; 402. Cover plate; 403. Circular groove; 404. First telescopic rod; 405. Second circular plate; 5. Fixed frame; 6. Fixed mechanism; 601. Slide rail; 602. Lifting plate; 603. Connecting plate; 604. Clamping assembly; 6041. Adjusting rod; 6042. Backing plate; 6043. Fifth telescopic rod; 6044. Clamping plate; 6045. Adjusting bent rod; 60 46. ​​Arc-shaped fixing plate; 6047. Cylinder; 6048. Locking ring; 6049. Flow groove; 605. Locking frame; 606. Fixing cylinder; 607. Vertical plate; 608. Second telescopic rod; 609. Third telescopic rod; 610. Top plate; 611. Arc-shaped cover; 612. Arc-shaped bottom plate; 613. Fourth telescopic rod; 614. Arc-shaped buckle plate; 7. First channel; 8. Fixing plate; 9. Fixing box; 10. Fixing groove; 11. Electric push rod; 12. First circular plate. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0035] like Figures 1-9 As shown, the present invention provides a technical solution, specifically including:

[0036] Test bench 1, the top of test bench 1 is provided with slide rail 2, the inside of test bench 1 is provided with first channel 7, the inside of slide rail 2 is slidably connected with first slide plate 3, the inside of first slide plate 3 is provided with power system, and the inside of slide rail 2 is fixedly connected with fixed frame 5.

[0037] The fixing plate 8 has a fixing groove 10 inside. There are two fixing grooves 10, which are symmetrically arranged. An electric push rod 11 is fixedly connected inside the fixing groove 10, and a first circular plate 12 is fixedly connected outside the electric push rod 11.

[0038] The hydraulic cylinder test bench also includes:

[0039] The testing mechanism 4 is fixedly connected to the top of the first slide plate 3. The testing mechanism 4 includes a fixed frame 401. A first telescopic rod 404 is fixedly connected inside the fixed frame 401. A second circular plate 405 is fixedly connected outside the first telescopic rod 404. A contact point is provided outside the second circular plate 405. A pressure sensor is connected to the contact point. The fixed frame 401 is fixedly connected to the top of the first slide plate 3.

[0040] The fixing mechanism 6 is used to control the position of the oil cylinder and the oil pipe. The fixing mechanism 6 is fixedly connected to the outside of the fixing frame 5. The fixing mechanism 6 includes a slide rail 601. A lifting plate 602 is slidably connected inside the slide rail 601. A power system is installed inside the lifting plate 602. A connecting plate 603 is fixedly connected to the outside of the lifting plate 602. A clamping assembly 604 is fixedly connected to the outside of the connecting plate 603. The slide rail 601 is opened inside the fixing frame 5.

[0041] A fixed box 9 is provided on the outside of the fixed plate 8, and a vibration motor is provided inside the fixed box 9. An impact ball is fixedly connected to the outside of the first circular plate 12. A second channel is opened inside the lifting plate 602. Four oil tanks are provided at the bottom of the test bench 1, and each of the four oil tanks is connected to four oil pipes.

[0042] Before using the equipment, manually place the standard cylinder and the cylinder to be tested into the two fixed mechanisms 6 respectively. Adjust the fixed mechanisms 6 to adjust the positions of the two cylinders, then activate the testing mechanism 4 to perform a pressure test on the cylinders. After adjusting the fixed mechanisms 6 to adjust the positions of the two cylinders, activate the electric push rod 11. The electric push rod 11 drives the first circular plate 12 and the impact ball to move, causing the impact ball to repeatedly strike the cylinder. Activate the testing mechanism 4 to perform a pressure test on the cylinders. Then activate the vibration motor to bring the impact ball into contact with the cylinder, activate the testing mechanism 4, and perform a pressure test on the cylinders.

[0043] The fixed frame 401 has a circular groove 403 inside, and the first telescopic rod 404 passes through the inside of the circular groove 403. Multiple first telescopic rods 404 and second circular plates 405 are provided. The top of the fixed frame 401 is provided with a cover plate 402.

[0044] Before the test begins, the first telescopic rod 404 is activated. The first telescopic rod 404 drives the second circular plate 405 to move towards the hydraulic cylinder, thereby moving the contact point. The power system in the first slide plate 3 is activated, and the first slide plate 3 begins to move in the slide rail 2 until the fixed frame 401 is in the designated position.

[0045] As the hydraulic cylinder opens, the piston rod contacts the contact point, and the pressure value can be detected by the pressure sensor. By setting a standard hydraulic cylinder and the hydraulic cylinder under test, the pressure values ​​can be compared for testing.

[0046] The fixed frame 5 is externally fixedly connected to a vertical plate 607 and a locking frame 605. There are two vertical plates 607 and two locking frames 605. The locking frame 605 has a third channel inside. The locking frame 605 is externally fixedly connected to a fixed cylinder 606. The vertical plate 607 is externally fixedly connected to a second telescopic rod 608. The second telescopic rod 608 passes through the interior of the locking frame 605 and the interior of the lifting plate 602. The second telescopic rod 608 is engaged with the fixed cylinder 606.

[0047] When a pressure test is required on the hydraulic cylinder under test, the power system in the lifting plate 602 is activated, causing the lifting plate 602 to move downward in the slide rail 601. The second channel in the lifting plate 602 aligns with the second telescopic rod 608 below. The second telescopic rod 608 is then activated, passing through the second channel in the lifting plate 602 and the third channel in the locking frame 605, and gradually locking into the fixed cylinder 606.

[0048] When a pressure test is required on the hydraulic cylinder under vibration or impact, the power system in the lifting plate 602 is activated, causing the lifting plate 602 to move upward in the slide rail 601. The second channel in the lifting plate 602 aligns with the upper second telescopic rod 608. The second telescopic rod 608 is then activated, passing through the second channel in the lifting plate 602 and the third channel in the locking frame 605, and gradually locking into the fixed cylinder 606.

[0049] The lifting platform 602 is externally fixedly connected to a fourth telescopic rod 613, and the fourth telescopic rod 613 is externally rotatably connected to an arc-shaped buckle plate 614. There are two of each of the fourth telescopic rod 613 and the arc-shaped buckle plate 614.

[0050] The top of the fixed frame 5 is fixedly connected to an arc-shaped base plate 612, the top of the fixed frame 5 is fixedly connected to a third telescopic rod 609, the top of the third telescopic rod 609 is fixedly connected to a top plate 610, and the bottom of the top plate 610 is fixedly connected to an arc-shaped cover 611.

[0051] Open the third telescopic rod 609. The third telescopic rod 609 drives the top plate 610 to move upward. Manually place the four oil pipes on the four arc-shaped base plates 612 respectively. Then adjust the third telescopic rod 609 to the initial state. The arc-shaped cover 611 falls on the arc-shaped base plate 612 to fix the position of the oil pipes.

[0052] The clamping assembly 604 includes an adjusting rod 6041, and a backing plate 6042 is fixedly connected to the outside of the adjusting rod 6041. The backing plate 6042 is cross-shaped, and a circular pad is provided on the outside of the backing plate 6042. The adjusting rod 6041 is fixedly connected to the outside of the connecting plate 603.

[0053] The fifth telescopic rod 6043 is fixedly connected to the outside of the backing plate 6042. The fifth telescopic rod 6043 is fixedly connected to the outside of the clamping plate 6044. The first rubber strip is fixedly connected to the outside of the clamping plate 6044. There are four fifth telescopic rods 6043 and four clamping plates 6044.

[0054] The clamping plate 6044 is externally fixedly connected to an adjusting bent rod 6045, the adjusting bent rod 6045 is externally fixedly connected to an arc-shaped fixing plate 6046, and the arc-shaped fixing plate 6046 is externally fixedly connected to a second rubber strip.

[0055] Open the fifth telescopic rod 6043. The fifth telescopic rod 6043 drives the clamping plate 6044 to move outward. Manually bring the cylinder base into contact with the circular pad. Adjust the fifth telescopic rod 6043 to the initial state. Fix the base with the clamping plate 6044. Manually adjust the bending rod 6041 so that the arc-shaped fixing plate 6046 rests against both sides of the cylinder body, and both the first rubber strip and the second rubber strip are in contact with the cylinder.

[0056] The clamping plate 6044 has a flow groove 6049 inside. A cylinder 6047 is fixedly connected to the top of the clamping plate 6044. A locking ring 6048 is fixedly connected to the outside of the cylinder 6047. The locking ring 6048 is made of elastic material. There are two cylinders 6047 and two locking rings 6048.

[0057] Manually insert the oil pipe into the cylinder 6047 and the locking ring 6048, and manually adjust the angle of the arc-shaped buckle plate 614 so that the arc-shaped buckle plate 614 is locked outside the oil pipe, with the oil pipe head outside the locking ring 6048. Depending on the oil tank and the corresponding oil pipe used, manually pull the oil pipe to gradually pass through the locking ring 6048 and connect it to the oil cylinder.

[0058] Working Principle: Before using the equipment, manually place the standard cylinder and the cylinder to be tested into the two fixed mechanisms 6 respectively. Open the third telescopic rod 609, which moves the top plate 610 upwards. Manually place the four oil pipes onto the four arc-shaped base plates 612 respectively. Then adjust the third telescopic rod 609 to its initial state, and the arc-shaped cover 611 rests on the arc-shaped base plate 612, fixing the oil pipe positions. Open the fifth telescopic rod 6043, which moves the clamping plate 6044 outwards. Manually bring the cylinder base into contact with the circular pad. Adjust the fifth telescopic rod 6043 to its initial state, and the clamping plate 6044 fixes the base. Manually adjust the bending rod 6041 so that the arc-shaped fixing plate 6046 rests against both sides of the cylinder body, and both the first and second rubber strips are in contact with the cylinder.

[0059] Manually insert the oil pipe into the cylinder 6047 and the locking ring 6048, and manually adjust the angle of the arc-shaped buckle plate 614 so that the arc-shaped buckle plate 614 is locked outside the oil pipe, with the oil pipe head outside the locking ring 6048. Depending on the oil tank and the corresponding oil pipe used, manually pull the oil pipe to gradually pass through the locking ring 6048 and connect it to the oil cylinder.

[0060] Adjust the fixing mechanism 6 to adjust the position of the two hydraulic cylinders, and then activate the testing mechanism 4 to perform a pressure test on the hydraulic cylinders. Before the test begins, activate the first telescopic rod 404, which drives the second circular plate 405 towards the hydraulic cylinder, thereby moving the contact point. Activate the power system in the first slide plate 3, and the first slide plate 3 begins to move in the slide rail 2 until the fixing frame 401 is at the designated position.

[0061] When a pressure test is required on the hydraulic cylinder under test, the power system in the lifting plate 602 is activated, causing the lifting plate 602 to move downward in the slide rail 601. The second channel in the lifting plate 602 aligns with the second telescopic rod 608 below. The second telescopic rod 608 is then activated, passing through the second channel in the lifting plate 602 and the third channel in the locking frame 605, and gradually locking into the fixed cylinder 606.

[0062] As the hydraulic cylinder opens, the piston rod contacts the contact point, and the pressure value can be detected by the pressure sensor. By setting a standard hydraulic cylinder and the hydraulic cylinder under test, the pressure values ​​can be compared for testing.

[0063] When a pressure test is required on the hydraulic cylinder under vibration or impact, the power system in the lifting plate 602 is activated, causing the lifting plate 602 to move upward in the slide rail 601. The second channel in the lifting plate 602 aligns with the upper second telescopic rod 608. The second telescopic rod 608 is then activated, passing through the second channel in the lifting plate 602 and the third channel in the locking frame 605, and gradually locking into the fixed cylinder 606.

[0064] Then, the electric push rod 11 is activated, which drives the first circular plate 12 and the impact ball to move, causing the impact ball to repeatedly strike the hydraulic cylinder, thus activating the testing mechanism 4 to perform a pressure test on the hydraulic cylinder. Then, the vibration motor is activated, causing the impact ball to contact the hydraulic cylinder, thus activating the testing mechanism 4 to perform a pressure test on the hydraulic cylinder.

[0065] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A hydraulic cylinder test bench, specifically comprising: The test bench (1) is characterized in that: a slide rail (2) is provided on the top of the test bench (1), a first slide plate (3) is slidably connected inside the slide rail (2), and a fixing frame (5) is fixedly connected inside the slide rail (2); A fixed plate (8) is provided with a fixed groove (10) inside the fixed plate (8). An electric push rod (11) is fixedly connected inside the fixed groove (10). A first circular plate (12) is fixedly connected outside the electric push rod (11). An impact ball is fixedly connected outside the first circular plate (12). The electric push rod (11) drives the first circular plate (12) and the impact ball to move, so that the impact ball repeatedly impacts the oil cylinder. The hydraulic cylinder test bench also includes: The testing mechanism (4) is fixedly connected to the top of the first slide plate (3). The testing mechanism (4) includes a fixed frame (401). A first telescopic rod (404) is fixedly connected inside the fixed frame (401). A second circular plate (405) is fixedly connected outside the first telescopic rod (404). A contact point is provided outside the second circular plate (405). The first telescopic rod (404) can drive the second circular plate (405) to move towards the direction of the oil cylinder, thereby driving the contact point to move. A pressure sensor is connected to the contact point. The pressure value can be detected by the pressure sensor. By setting a standard oil cylinder and the oil cylinder to be tested, the pressure value can be compared and tested. The fixed frame (401) is fixedly connected to the top of the first slide plate (3). The fixing mechanism (6) is used to control the position of the oil cylinder and the oil pipe. The fixing mechanism (6) is fixedly connected to the outside of the fixing frame (5). The fixing mechanism (6) includes a slide (601). A lifting plate (602) is slidably connected inside the slide (601). A connecting plate (603) is fixedly connected to the outside of the lifting plate (602). A clamping assembly (604) is fixedly connected to the outside of the connecting plate (603). The slide (601) is opened inside the fixing frame (5).

2. The hydraulic cylinder test bench according to claim 1, characterized in that: The test bench (1) has a first channel (7) inside, the fixed plate (8) has a fixed box (9) outside, the fixed box (9) has a vibration motor inside, and the lifting plate (602) has a second channel inside.

3. The hydraulic cylinder test bench according to claim 1, characterized in that: The fixed frame (401) has a circular groove (403) inside, and the first telescopic rod (404) passes through the inside of the circular groove (403). Multiple first telescopic rods (404) and second circular plates (405) are provided. The top of the fixed frame (401) is provided with a cover plate (402).

4. The hydraulic cylinder test bench according to claim 1, characterized in that: The fixed frame (5) is externally fixedly connected to a vertical plate (607) and a locking frame (605). There are two vertical plates (607) and two locking frames (605). A third channel is opened inside the locking frame (605). A fixed cylinder (606) is externally fixedly connected to the locking frame (605). A second telescopic rod (608) is externally fixedly connected to the vertical plate (607). The second telescopic rod (608) passes through the inside of the locking frame (605) and the inside of the lifting plate (602). The second telescopic rod (608) is engaged with the fixed cylinder (606).

5. The hydraulic cylinder test bench according to claim 4, characterized in that: The lifting plate (602) is externally fixedly connected to a fourth telescopic rod (613), and the fourth telescopic rod (613) is externally rotatably connected to an arc-shaped buckle plate (614). There are two of each of the fourth telescopic rod (613) and the arc-shaped buckle plate (614).

6. The hydraulic cylinder test bench according to claim 1, characterized in that: The top of the fixed frame (5) is fixedly connected to an arc-shaped bottom plate (612), the top of the fixed frame (5) is fixedly connected to a third telescopic rod (609), the top of the third telescopic rod (609) is fixedly connected to a top plate (610), and the bottom of the top plate (610) is fixedly connected to an arc-shaped cover (611).

7. The hydraulic cylinder test bench according to claim 1, characterized in that: The clamping assembly (604) includes an adjusting rod (6041), and a backing plate (6042) is fixedly connected to the outside of the adjusting rod (6041). The backing plate (6042) is configured in a cross shape, and a circular pad is provided on the outside of the backing plate (6042). The adjusting rod (6041) is fixedly connected to the outside of the connecting plate (603).

8. The hydraulic cylinder test bench according to claim 7, characterized in that: The backing plate (6042) is externally fixedly connected to a fifth telescopic rod (6043), the fifth telescopic rod (6043) is externally fixedly connected to a clamping plate (6044), the clamping plate (6044) is externally fixedly connected to a first rubber strip, and four of the fifth telescopic rod (6043) and the clamping plate (6044) are provided.

9. The hydraulic cylinder test bench according to claim 8, characterized in that: An adjusting bending rod (6045) is fixedly connected to the outside of the clamping plate (6044), an arc-shaped fixing plate (6046) is fixedly connected to the outside of the adjusting bending rod (6045), and a second rubber strip is fixedly connected to the outside of the arc-shaped fixing plate (6046).

10. The hydraulic cylinder test bench according to claim 8, characterized in that: The clamping plate (6044) has a flow groove (6049) inside. A cylinder (6047) is fixedly connected to the top of the clamping plate (6044). A locking ring (6048) is fixedly connected to the outside of the cylinder (6047). There are two cylinders (6047) and two locking rings (6048).

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