Hydraulic cylinder accelerated life test bench

Abstract

The utility model relates to the technical field of hydraulic cylinder production devices, and discloses a hydraulic cylinder accelerated life test bench which comprises a test bench body, a containing groove is formed in the test bench body, arc-shaped plates are fixedly connected to the two sides of the interior of the containing groove, and sliding rails are fixedly connected to the two sides of the top of the test bench body. And a sliding block is slidably connected into the sliding rail, a moving plate is in lap joint with the top of the sliding block, the moving plate is arc-shaped, a threaded rod is in threaded connection with the interior of the moving plate, a bearing is fixedly installed at the bottom of the threaded rod, and the threaded rod is rotationally connected into the bearing. Compared with the prior art, the hydraulic cylinder clamping device has the advantages that the rubber protrusions are distributed at the bottom of the clamping ring and can also be compressed, then tensile force can be generated between the clamping ring and the hydraulic cylinder, deformation can be prevented, meanwhile, the hydraulic cylinder can be firmly fixed into the containing groove, and the clamping ring clamping device is convenient to use. And the clamping effect on the hydraulic cylinder is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder production devices, in particular to an accelerated life test bench for hydraulic cylinders. Background Art

[0002] After the hydraulic cylinder is produced, it is necessary to conduct a pressure test on the hydraulic cylinder. By applying external force to the outer wall of the hydraulic cylinder, the test is conducted to see what kind of pressure the hydraulic cylinder can withstand. When the hydraulic cylinder has strong pressure resistance, the service life of the hydraulic cylinder will not be short.

[0003] In the prior art, Chinese patent publication number CN217271165U discloses a hydraulic cylinder intelligent accelerated life test bench, including a test bench, the test bench including a bottom plate, a support seat, a support frame, a fixed seat and a connecting top rod. The hydraulic cylinder intelligent accelerated life test bench is provided with a T-shaped slide groove at the bottom of the support plate. When the support plate needs to be adjusted in angle, the movable block is used to perform movable adjustment in the T-shaped slide groove provided at the bottom of the support plate, so that the support plate can be quickly adjusted to various angles. At the same time, the bolt is inserted into the limit hole through the adjustment holes provided on both sides of the support plate to adjust the limit of the movable block. The operation is quick and convenient, and the top seat is movably connected to the top of the hydraulic cylinder piston rod. The top seat is driven by the hydraulic cylinder to reciprocate inside the connecting seat for accelerated testing. At the same time, the support plate can be adjusted to different angles according to the required working conditions to obtain different load pressures for accelerated testing, making it more efficient to use.

[0004] However, the existing hydraulic cylinder life test bench has a poor clamping effect on the hydraulic cylinder. When the hydraulic cylinder is undergoing a compression test, the hydraulic cylinder is prone to shaking. At the same time, the hydraulic cylinder is prone to getting stuck inside the test bench, making it difficult to remove the hydraulic cylinder from the inside of the test bench. Therefore, improvement is needed. Utility Model Content

[0005] The utility model aims to provide a hydraulic cylinder accelerated life test bench, which has a good clamping effect on the hydraulic cylinder and prevents the hydraulic cylinder from being stuck.

[0006] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a hydraulic cylinder accelerated life test bench, including a test bench, a placement groove is opened inside the test bench, and arc-shaped plates are fixedly connected on both sides of the placement groove, and slide rails are fixedly connected on both sides of the top of the test bench, and sliders are slidably connected inside the slide rails, and a movable plate is overlapped on the top of the slider, and the movable plate is arc-shaped, and a screw is threadedly connected to the inside of the movable plate, and a bearing is fixedly installed at the bottom of the screw, and the screw is rotatably connected to the inside of the bearing, and a buffer sleeve is provided at the bottom of the bearing, and a lower pressure block is rotatably connected to the inside of the bearing, and the bottom of the lower pressure block is fixedly connected to a cross plate, and the inner bottom wall of the buffer sleeve is fixedly connected to a spring, and the cross plate is fixedly connected to the top of the spring, and the bottom of the buffer sleeve is fixedly connected to a clamping ring, and the clamping ring is arc-shaped, and the bottom of the clamping ring is fixedly connected to a rubber protrusion.

[0007] By adopting the above technical solution, the staff places the hydraulic cylinder into the interior of the test bench through the placement groove, and the arc-shaped plates are fixed on both sides of the placement groove, so as to support the two ends of the hydraulic cylinder. Then the staff moves the slider to make the slider displace inside the slide rail, so as to adjust the position of the movable plate, move the two movable plates to the two ends of the hydraulic cylinder respectively, and then twist the screw rod to make the screw rod displace inside the movable plate. The movement of the screw rod drives the clamping ring to expand and contract inside the movable plate, and the clamping ring contacts the outer wall of the hydraulic cylinder, so as to form a support for the hydraulic cylinder. The bearing is connected with the screw during the displacement, and the clamping ring is extended and retracted without rotating. When the clamping ring contacts the hydraulic cylinder, the spring is compressed and the rubber protrusions are distributed at the bottom of the clamping ring. The rubber protrusions are also compressed, so that tension can be generated between the clamping ring and the hydraulic cylinder, which not only prevents deformation but also firmly fixes the hydraulic cylinder in the placement groove, greatly improving the clamping effect of the hydraulic cylinder. At the same time, due to the clamping between the clamping ring and the hydraulic cylinder, the slider can be locked inside the slide rail.

[0008] The utility model is further configured as follows: the number of the rubber protrusions is several, and the several rubber protrusions are distributed in the form of an arc array.

[0009] By adopting the above technical solution, a plurality of rubber protrusions are distributed at the bottom of the clamping ring, and the plurality of rubber protrusions are in contact with the outer wall of the hydraulic cylinder.

[0010] The utility model is further configured as follows: bolts are threadedly connected to both sides of the movable plate, and the bolts extend into the interior of the sliding block.

[0011] By adopting the above technical solution, the bolts extend to the inside of the moving plate and the sliding block, thereby being able to fix the moving plate on the top of the sliding block.

[0012] The utility model is further configured as follows: a handle is fixedly connected to the top end of the screw rod, and anti-slip grooves are provided on the outside of the handle.

[0013] By adopting the above technical solution, the staff can rotate the screw by holding the handle, which is more convenient.

[0014] The utility model is further configured as follows: both sides of the inner wall of the buffer sleeve are fixedly connected with linear tracks, and the transverse plate is slidably connected inside the linear tracks.

[0015] By adopting the above technical solution, when the spring contracts, the cross plate will slide inside the linear track, and the linear track is straight, so that the end of the spring will not deviate during the contraction of the spring.

[0016] The utility model is further configured as follows: a cylinder is fixedly mounted on the bottom of the test bench, and a push rod is arranged at the output end of the cylinder.

[0017] By adopting the above technical solution, when the hydraulic cylinder is stuck inside the placement groove, the staff starts the cylinder, so that the cylinder drives the push rod to extend and retract.

[0018] The utility model is further configured as follows: a top end of the push rod is fixedly connected with a top block, and a top end of the top block is fixedly connected with a top ball head.

[0019] By adopting the above technical solution, the push rod drives the top block and the lifting ball head to extend, and the lifting ball head extends to the inside of the placement groove and contacts the hydraulic cylinder, thereby lifting the hydraulic cylinder, so that the hydraulic cylinder can be smoothly taken out from the inside of the placement groove.

[0020] The utility model is further configured as follows: a cylinder bracket is fixedly installed on the outside of the cylinder, and the cylinder bracket is fixedly connected to the bottom of the test bench.

[0021] By adopting the above technical solution, the cylinder is fixed to the bottom of the test bench through the cylinder bracket, so that the cylinder can have extremely strong stability when operating.

[0022] The utility model is further configured as follows: a bottom plate is fixedly connected to the bottom of the test bench, mounting blocks are fixedly connected to both sides of the bottom plate, and mounting rods are connected to the internal threads of the mounting blocks.

[0023] By adopting the above technical solution, the base plate supports the test bench. When the test bench is fixed on the base surface, the mounting rod is threadedly connected to the inside of the mounting block so that the mounting rod extends to the inside of the base surface, thereby fixing the test bench on the base surface.

[0024] The utility model is further configured as follows: the number of the mounting rods is four, and the four mounting rods are distributed in the form of a rectangular array.

[0025] By adopting the above technical solution, four mounting rods and mounting blocks are distributed at the corners of the base plate, thereby improving the fixing effect of the test bench.

[0026] The beneficial effects of the utility model are:

[0027] The utility model, through the arrangement among the test bench, placement groove, arc plate, slide rail, slider, movable plate, screw rod, mounting rod, bearing, buffer sleeve, lower pressure block, cross plate, spring, clamping ring and rubber protrusion, can not only prevent deformation, but also firmly fix the hydraulic cylinder inside the placement groove, greatly improving the clamping effect of the hydraulic cylinder, and at the same time, due to the clamping formed between the clamping ring and the hydraulic cylinder, the slider can be locked inside the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the internal structure of the movable plate of the utility model;

[0031] Figure 3 This is a schematic diagram of the top view structure of the bearing of the utility model;

[0032] Figure 4 This is a schematic diagram of the internal structure of the buffer sleeve of the utility model.

[0033] In the figure, 1, test bench; 2, placement groove; 3, arc plate; 4, slide rail; 5, slider; 6, moving plate; 7, screw; 8, mounting rod; 9, bearing; 10, buffer sleeve; 11, lower pressure block; 12, cross plate; 13, spring; 14, clamping ring; 15, rubber protrusion; 16, bolt; 17, handle; 18, linear track; 19, cylinder; 20, push rod; 21, lift block; 22, lift ball head; 23, cylinder bracket; 24, bottom plate; 25, mounting block. DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0035] Reference Figure 1-4A hydraulic cylinder accelerated life test bench comprises a test bench 1, a placement groove 2 is provided inside the test bench 1, arc-shaped plates 3 are fixedly connected to both sides of the placement groove 2, slide rails 4 are fixedly connected to both sides of the top of the test bench 1, a slider 5 is slidably connected to the inside of the slide rail 4, a moving plate 6 is overlapped on the top of the slider 5, the moving plate 6 is arc-shaped, a screw 7 is threadedly connected to the inside of the moving plate 6, a bearing 9 is fixedly installed at the bottom of the screw 7, and the screw 7 is rotatably connected to the inside of the bearing 9, a buffer sleeve 10 is provided at the bottom of the bearing 9, a lower pressing block 11 is rotatably connected to the inside of the bearing 9, a cross plate 12 is fixedly connected to the bottom of the lower pressing block 11, a spring 13 is fixedly connected to the inner bottom wall of the buffer sleeve 10, and the cross plate 12 is fixedly connected to the top of the spring 13, and the buffer sleeve 10 is fixedly connected to the inner bottom wall of the buffer sleeve 10. The bottom of the punch sleeve 10 is fixedly connected with a clamping ring 14, and the clamping ring 14 is arc-shaped. The bottom of the clamping ring 14 is fixedly connected with a rubber protrusion 15. The staff places the hydraulic cylinder into the interior of the test bench 1 through the placement groove 2. The arc plate 3 is fixed on both sides of the placement groove 2, so that the two ends of the hydraulic cylinder can be supported. Then the staff moves the slider 5 so that the slider 5 is displaced inside the slide rail 4, and then the position of the movable plate 6 can be adjusted. The two movable plates 6 are moved to the two ends of the hydraulic cylinder respectively, and then the screw 7 is twisted so that the screw 7 is displaced inside the movable plate 6. The movement of the screw 7 drives the clamping ring 14 to expand and contract inside the movable plate 6, and the clamping ring 14 contacts the outer wall of the hydraulic cylinder, so that the hydraulic cylinder can be clamped. , and during the displacement of the screw rod 7, the bearing 9 is rotatably connected to the screw rod 7, and then the clamping ring 14 is extended and retracted without rotating. When the clamping ring 14 contacts the hydraulic cylinder, the spring 13 will be compressed, and the rubber protrusions 15 are distributed at the bottom of the clamping ring 14. The rubber protrusions 15 will also be compressed, so that a tensioning force can be generated between the clamping ring 14 and the hydraulic cylinder, which can not only prevent deformation, but also firmly fix the hydraulic cylinder in the placement groove 2, greatly improving the clamping effect of the hydraulic cylinder. At the same time, due to the clamping between the clamping ring 14 and the hydraulic cylinder, the slider 5 can be locked inside the slide rail 4. The number of rubber protrusions 15 is several, and the several rubber protrusions 15 are distributed in the form of an arc array, and multiple Rubber protrusions 15 are distributed at the bottom of the clamping ring 14, and multiple rubber protrusions 15 are in contact with the outer wall of the hydraulic cylinder. Bolts 16 are threadedly connected on both sides of the movable plate 6. The bolts 16 extend into the interior of the slider 5. The bolts 16 extend into the interior of the movable plate 6 and the slider 5, so that the movable plate 6 can be fixed to the top of the slider 5. A handle 17 is fixedly connected to the top of the screw rod 7. The outside of the handle 17 is provided with anti-slip grooves. It is convenient for the staff to hold the handle 17 and rotate the screw rod 7. Linear tracks 18 are fixedly connected on both sides of the inner wall of the buffer sleeve 10. The cross plate 12 is slidably connected to the inside of the linear track 18. When the spring 13 contracts, the cross plate 12 will slide inside the linear track 18. The linear track 18 is straight.Thereby, during the contraction of the spring 13, the end of the spring 13 will not deviate. A cylinder 19 is fixedly installed at the bottom of the test bench 1, and a push rod 20 is provided at the output end of the cylinder 19. When the hydraulic cylinder is stuck inside the placement groove 2, the staff starts the cylinder 19, so that the cylinder 19 drives the push rod 20 to extend and retract. The top of the push rod 20 is fixedly connected to a top block 21, and the top of the top block 21 is fixedly connected to a lifting ball head 22. The push rod 20 drives the top block 21 and the lifting ball head 22 to extend. The lifting ball head 22 extends to the inside of the placement groove 2 and contacts the hydraulic cylinder, so that the hydraulic cylinder can be lifted up, so that the hydraulic cylinder can be smoothly taken out from the inside of the placement groove 2. A cylinder bracket 23 is fixedly installed on the outside of the cylinder 19, and the cylinder bracket 23 is fixedly connected Connected to the bottom of the test bench 1, the cylinder 19 is fixed to the bottom of the test bench 1 through the cylinder bracket 23, so that the cylinder 19 can have extremely strong stability when working. The bottom of the test bench 1 is fixedly connected to the bottom of the test bench 1. The two sides of the bottom plate 24 are fixedly connected to the mounting blocks 25. The internal threads of the mounting blocks 25 are connected to the mounting rods 8. The bottom plate 24 supports the test bench 1. When the test bench 1 is fixed on the base surface, the mounting rods 8 are threadedly connected to the inside of the mounting blocks 25, so that the mounting rods 8 extend to the inside of the base surface, and then the test bench 1 can be fixed on the base surface. The number of mounting rods 8 is four, and the four mounting rods 8 are distributed in the form of a rectangular array. The four mounting rods 8 and the mounting blocks 25 are distributed at the corners of the bottom plate 24 to improve the fixing effect of the test bench 1.

[0036] In the utility model, the staff places the hydraulic cylinder into the interior of the test bench 1 through the placement groove 2, and the arc plate 3 is fixed on both sides of the placement groove 2, so that the two ends of the hydraulic cylinder can be supported. Then the staff moves the slider 5, so that the slider 5 is displaced inside the slide rail 4, and then the position of the movable plate 6 can be adjusted, and the two movable plates 6 are moved to the two ends of the hydraulic cylinder respectively. Then the screw rod 7 is twisted to make the screw rod 7 displace inside the movable plate 6. The movement of the screw rod 7 drives the clamping ring 14 to expand and contract inside the movable plate 6, and the clamping ring 14 contacts the outer wall of the hydraulic cylinder, so that the hydraulic cylinder can be clamped. In the process of displacement of the screw rod 7, the bearing 9 is rotatably connected with the screw rod 7, and then the clamping ring 14 is expanded and contracted without rotating. When the clamping ring 14 contacts the hydraulic cylinder, the spring 13 will be compressed, and the rubber protrusions 15 are distributed at the bottom of the clamping ring 14. The rubber protrusions 15 will also be compressed, and then This allows tension to be generated between the clamping ring 14 and the hydraulic cylinder, which not only prevents deformation but also firmly fixes the hydraulic cylinder inside the placement groove 2, greatly improving the clamping effect of the hydraulic cylinder. At the same time, due to the clamping between the clamping ring 14 and the hydraulic cylinder, the slider 5 can be locked inside the slide rail 4. When the spring 13 contracts, the cross plate 12 will slide inside the linear track 18, and the linear track 18 is straight, so that the end of the spring 13 will not deviate during the contraction process. When the hydraulic cylinder is stuck inside the placement groove 2, the staff starts the cylinder 19, so that the cylinder 19 drives the push rod 20 to retract and retract, and the push rod 20 drives the top block 21 and the lifting ball head 22 to extend. The lifting ball head 22 extends to the inside of the placement groove 2 and contacts the hydraulic cylinder, so that the hydraulic cylinder can be lifted up, so that the hydraulic cylinder can be smoothly taken out from the inside of the placement groove 2.

[0037] 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 accelerated life test bench, comprising a test bench (1), characterized in that: The test bench (1) is provided with a placement groove (2) inside, and arc-shaped plates (3) are fixedly connected to both sides of the placement groove (2). The top of the test bench (1) is fixedly connected with slide rails (4). The inside of the slide rails (4) is slidably connected with a slider (5). The top of the slider (5) is overlapped with a moving plate (6). The moving plate (6) is arc-shaped. The inside of the moving plate (6) is threadedly connected with a screw rod (7). A bearing (9) is fixedly installed at the bottom of the screw rod (7), and the screw rod (7) is rotatably connected to the bearing (9). Internally, a buffer sleeve (10) is provided at the bottom of the bearing (9), and a lower pressure block (11) is rotatably connected inside the bearing (9), and a transverse plate (12) is fixedly connected to the bottom of the lower pressure block (11), and a spring (13) is fixedly connected to the inner bottom wall of the buffer sleeve (10), and the transverse plate (12) is fixedly connected to the top of the spring (13), and a clamping ring (14) is fixedly connected to the bottom of the buffer sleeve (10), and the clamping ring (14) is arc-shaped, and a rubber protrusion (15) is fixedly connected to the bottom of the clamping ring (14).

2. The hydraulic cylinder accelerated life test bench according to claim 1, characterized in that: The number of the rubber protrusions (15) is several, and the several rubber protrusions (15) are distributed in the form of an arc-shaped array.

3. The hydraulic cylinder accelerated life test bench according to claim 1, characterized in that: Bolts (16) are threadedly connected to both sides of the moving plate (6), and the bolts (16) extend into the interior of the sliding block (5).

4. The hydraulic cylinder accelerated life test bench according to claim 1, characterized in that: The top end of the screw rod (7) is fixedly connected with a handle (17), and the outside of the handle (17) is provided with anti-slip grooves.

5. The hydraulic cylinder accelerated life test bench according to claim 1, characterized in that: Linear tracks (18) are fixedly connected to both sides of the inner wall of the buffer sleeve (10), and the transverse plate (12) is slidably connected to the inside of the linear track (18).

6. The hydraulic cylinder accelerated life test bench according to claim 1, characterized in that: A cylinder (19) is fixedly mounted on the bottom of the test bench (1), and a push rod (20) is provided at the output end of the cylinder (19).

7. The hydraulic cylinder accelerated life test bench according to claim 6, characterized in that: The top end of the push rod (20) is fixedly connected to a top block (21), and the top of the top block (21) is fixedly connected to a top ball head (22).

8. The hydraulic cylinder accelerated life test bench according to claim 6, characterized in that: A cylinder bracket (23) is fixedly mounted on the outside of the cylinder (19), and the cylinder bracket (23) is fixedly connected to the bottom of the test bench (1).

9. The hydraulic cylinder accelerated life test bench according to claim 1, characterized in that: The bottom of the test bench (1) is fixedly connected to a base plate (24), both sides of the base plate (24) are fixedly connected to mounting blocks (25), and the internal threads of the mounting blocks (25) are connected to mounting rods (8).

10. The hydraulic cylinder accelerated life test bench according to claim 9, characterized in that: The number of the mounting rods (8) is four, and the four mounting rods (8) are distributed in the form of a rectangular array.

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