Hydraulic seal multi-station testing table

By designing a multi-station testing platform for hydraulic seals and adopting a multi-station fixing and sealing testing mechanism, the problems of long sealing test cycles and low accuracy caused by a single test station are solved, and efficient and accurate testing of hydraulic seals is achieved.

CN224301161UActive Publication Date: 2026-05-29JIANHU BADA HYDRAULIC MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANHU BADA HYDRAULIC MACHINERY CO LTD
Filing Date
2025-07-11
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing hydraulic cylinder testing machines only have a single testing station, resulting in long sealing test cycles and low efficiency. Furthermore, the external environment is difficult to be consistent when different hydraulic cylinders are tested at different times, affecting the accuracy and comparability of sealing tests.

Method used

A multi-station testing platform for hydraulic seals was designed, which uses a worktable, support block, slide rail, positioning block and clamping mechanism. Through the cooperation of cylinder, connecting plate, clamping block and guide rod, the hydraulic seals can be fixed in multiple positions. It is equipped with a sealing testing mechanism with air pump, branch hose, nozzle and air pressure gauge to realize the simultaneous testing of multiple hydraulic seals.

Benefits of technology

It improves the accuracy and comparability of hydraulic seal testing, shortens the testing cycle, and ensures the consistency of testing multiple hydraulic cylinders under the same environmental conditions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224301161U_ABST
    Figure CN224301161U_ABST
Patent Text Reader

Abstract

The utility model provides hydraulic sealing piece multistation detection platform relates to sealing piece detection platform technical field, including work bench, support block and slide rail, the back side symmetry fixed connection of work bench top has the slide rail, the top of slide rail is connected with the positioning block of sliding, one side of positioning block is equipped with the clamping mechanism, and the top of work bench is equipped with the sealing detection mechanism, the utility model places hydraulic sealing piece on the top of support block, two clamping blocks are connected with the output end of pneumatic cylinder as an organic whole through the connecting plate, and the output end of pneumatic cylinder can drive two clamping blocks to move to one side of hydraulic sealing piece, and connecting plate drives guide rod to move simultaneously, and guide rod extrudes positioning block through guide groove, drives positioning block to move to the other side of hydraulic sealing piece, and clamping block cooperates with positioning block and clamps the both sides of hydraulic sealing piece, fixes two hydraulic sealing pieces on the top of work bench, to solve the problem that single test station in the prior art can not check test test accuracy and the comparability of lower.
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Description

Technical Field

[0001] This utility model relates to the field of sealing component testing bench technology, and in particular to a multi-station testing bench for hydraulic sealing components. Background Technology

[0002] The multi-station hydraulic seal testing station is a device for efficiently testing the performance of hydraulic seals. It is equipped with multiple testing stations, which can test multiple seals simultaneously, greatly improving testing efficiency. It adopts advanced sensors and data acquisition systems to accurately monitor the sealing performance of seals under different pressures and operating conditions.

[0003] Currently, common hydraulic cylinder testing machines only have a single testing station for durability testing of piston rod seals and piston seals. Only one hydraulic cylinder can be tested at a time, resulting in a long testing cycle and low efficiency. Furthermore, the external environment is difficult to be consistent when different hydraulic cylinders are tested at different times. Subtle differences in the hydraulic transmission process and the external environment have varying impacts on the sealing performance test, leading to low accuracy and comparability of the sealing test. Therefore, this utility model proposes a multi-station testing platform for hydraulic seals to solve the above problems. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a multi-station testing platform for hydraulic seals, thereby resolving the problem that existing technologies with single testing stations cannot provide comparative testing, resulting in low accuracy and comparability.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a multi-station testing platform for hydraulic seals, including a worktable, support blocks and slide rails. Support blocks are symmetrically arranged on both sides of the worktable, and slide rails are symmetrically fixedly connected to the back side of the top of the worktable. A positioning block is slidably connected to the top of the slide rails, and a clamping mechanism is provided on one side of the positioning block. A sealing testing mechanism is provided on the top of the worktable.

[0006] A further improvement is made in that: the clamping mechanism includes a cylinder, a connecting plate, a clamping block, a guide rod, and a guide groove. The cylinder is fixedly installed on the top of the worktable, the output end of the cylinder is fixedly connected to the connecting plate, the two sides of the connecting plate are fixedly connected to the clamping block, one side of the clamping block is fixedly connected to the guide rod, the positioning block has a guide groove inside, and the top end of the guide rod passes through the inside of the guide groove.

[0007] A further improvement is that the positioning block is designed with an L-shaped structure, one end of the clamping block is attached to one side of the positioning block, and the guide groove is inclined from right to left.

[0008] A further improvement is that a sealing gasket is fixedly connected to the inner side of the positioning block, one end of the hydraulic seal is engaged with the sealing gasket, and the top of the support block is provided with an arc-shaped groove that matches the hydraulic seal.

[0009] A further improvement is made in that: the sealing detection mechanism includes an air pump, a branch hose, a nozzle, and a pressure gauge. An air pump is fixedly installed on the top of the workbench. The output end of the air pump is connected to a branch hose. Both ends of the branch hose are connected to nozzles. A pressure gauge is fixedly installed on the branch hose. A solenoid valve is also installed on the branch hose.

[0010] A further improvement is that a sealing cap is fixedly connected to the outside of the nozzle, and the outside of the sealing cap is engaged with the end of the hydraulic seal away from the sealing gasket.

[0011] Further improvements include: both the sealing gasket and the sealing cover are made of rubber, the slide rail is shaped like an I-beam, and the clamping block and the hydraulic seal are of equal length.

[0012] The beneficial effects of this utility model are as follows: the hydraulic seal is placed on the top of the support block, and the two clamping blocks are connected to the output end of the cylinder through the connecting plate. The output end of the cylinder can drive the two clamping blocks to move to one side of the hydraulic seal. At the same time, the connecting plate drives the guide rod to move. The guide rod squeezes the positioning block through the guide groove, driving the positioning block to move to the other side of the hydraulic seal. The clamping block and the positioning block cooperate to clamp the two sides of the hydraulic seal, fixing the two hydraulic seals on the top of the workbench. This solves the problem in the prior art that a single test station cannot compare and detect the low accuracy and comparability of the test. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention;

[0014] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0015] Figure 3 This is a diagram showing the clamping mechanism of this utility model in the released state;

[0016] Figure 4 This is a schematic diagram of the nozzle structure of this utility model.

[0017] The components include: 1. Workbench; 2. Support block; 3. Slide rail; 4. Positioning block; 5. Cylinder; 6. Connecting plate; 7. Clamping block; 8. Guide rod; 9. Guide groove; 10. Sealing gasket; 11. Air pump; 12. Branch hose; 13. Nozzle; 14. Pressure gauge; 15. Sealing cover; 16. Solenoid valve. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a multi-station testing platform for hydraulic seals, including a worktable 1, support blocks 2, and slide rails 3. Support blocks 2 are symmetrically arranged on both sides of the worktable 1, and slide rails 3 are symmetrically fixedly connected to the back side of the top of the worktable 1. Positioning blocks 4 are slidably connected to the top of the slide rails 3. A clamping mechanism is provided on one side of the positioning block 4, and a sealing testing mechanism is provided on the top of the worktable 1. The hydraulic seal is placed on the support block 2 between the positioning block 4 and the clamping mechanism. The clamping mechanism and the positioning block 4 cooperate to fix the hydraulic seal on the top of the worktable 1, and the sealing testing mechanism tests the hydraulic seal.

[0020] The clamping mechanism includes a cylinder 5, a connecting plate 6, clamping blocks 7, a guide rod 8, and a guide groove 9. The cylinder 5 is fixedly mounted on the top of the workbench 1. The output end of the cylinder 5 is fixedly connected to the connecting plate 6. Clamping blocks 7 are fixedly connected to both sides of the connecting plate 6. A guide rod 8 is fixedly connected to one side of each clamping block 7. The positioning block 4 has a guide groove 9 inside, and the top end of the guide rod 8 extends through the guide groove 9. The positioning block 4 is L-shaped. One end of the clamping block 7 fits against one side of the positioning block 4. The guide groove 9 is inclined from right to left. A hydraulic seal is placed on top of the support block 2. The two clamping blocks 7 are connected to the output end of the cylinder 5 via the connecting plate 6. The output end of the cylinder 5 can carry... The two clamping blocks 7 move to one side of the hydraulic seal, while the connecting plate 6 moves the guide rod 8. The guide rod 8 presses the positioning block 4 through the guide groove 9, causing the positioning block 4 to move to the other side of the hydraulic seal. The clamping blocks 7 and the positioning block 4 cooperate to clamp the two sides of the hydraulic seal, fixing the two hydraulic seals to the top of the workbench 1. This solves the problem of low accuracy and comparability of the existing technology due to the inability to compare the test results at a single test station. After the test is completed, the cylinder 5 drives the clamping blocks 7 and the guide rod 8 to reset through the connecting plate 6. The guide rod 8 drives the positioning block 4 to reset, and the clamping blocks 7 and the positioning block 4 separate from the two sides of the hydraulic seal. At this time, the hydraulic seal can be removed from the top of the workbench 1.

[0021] A sealing gasket 10 is fixedly connected to the inner side of the positioning block 4. One end of the hydraulic seal is engaged with the sealing gasket 10. The top of the support block 2 is provided with an arc-shaped groove that matches the hydraulic seal. The positioning block 4 fits against the other side of the hydraulic seal, and the sealing gasket 10 is automatically inserted into one end of the hydraulic seal to seal one end of the hydraulic seal.

[0022] The sealing detection mechanism includes an air pump 11, a branch hose 12, a nozzle 13, and a pressure gauge 14. The air pump 11 is fixedly installed on the top of the workbench 1. The output end of the air pump 11 is connected to the branch hose 12, and both ends of the branch hose 12 are connected to the nozzles 13. A pressure gauge 14 is fixedly installed on the branch hose 12, and a solenoid valve 16 is also installed on the branch hose 12. A sealing cover 15 is fixedly connected to the outside of the nozzle 13. The outside of the sealing cover 15 engages with the end of the hydraulic seal away from the sealing gasket 10. After one end of the hydraulic seal is closed, the nozzle... Insert 13 into the end of the hydraulic seal away from the sealing gasket 10, and the sealing cap 15 is engaged inside this end to seal the other end of the hydraulic seal. After the solenoid valve 16 on the branch hose 12 is opened, air is injected into the hydraulic seal through the air pump 11 in cooperation with the branch hose 12. After the air pressure protection is balanced, the pointer on the pressure gauge 14 swings steadily. Close the solenoid valve 16 and observe whether there is a large change in the position of the pointer on the pressure gauge 14 within a certain period of time to determine whether the sealing performance of the hydraulic seal is good. After the test is completed, pull the nozzle 13 out of the hydraulic seal.

[0023] Both the sealing gasket 10 and the sealing cover 15 are made of rubber, the slide rail 3 is shaped like an I-beam, and the clamping block 7 is the same length as the hydraulic seal.

[0024] This multi-station testing platform for hydraulic seals places the hydraulic seal on top of support block 2. Two clamping blocks 7 are connected to the output end of cylinder 5 via connecting plate 6. The output end of cylinder 5 can drive the two clamping blocks 7 to move to one side of the hydraulic seal. At the same time, connecting plate 6 drives guide rod 8 to move. Guide rod 8 presses positioning block 4 through guide groove 9, driving positioning block 4 to move to the other side of the hydraulic seal. The clamping blocks 7 and positioning block 4 cooperate to clamp the two sides of the hydraulic seal, fixing the two hydraulic seals to the top of the workbench 1. This solves the problem of low accuracy and comparability of existing single testing stations, which cannot be compared with each other. After the test, cylinder 5 drives clamping blocks 7 and guide rod 8 to reset via connecting plate 6. Guide rod 8 drives positioning block 4 to reset. Clamping blocks 7 and positioning block 4 separate from the two sides of the hydraulic seal. At this time, the hydraulic seal can be removed from the top of the workbench 1.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-station testing table for hydraulic seals, comprising a worktable (1), a support block (2), and a slide rail (3), characterized in that: The workbench (1) is symmetrically provided with support blocks (2) on both sides, and slide rails (3) are symmetrically fixedly connected to the back side of the top of the workbench (1). A positioning block (4) is slidably connected to the top of the slide rail (3). A clamping mechanism is provided on one side of the positioning block (4), and a sealing detection mechanism is provided on the top of the workbench (1). The clamping mechanism includes a cylinder (5), a connecting plate (6), a clamping block (7), a guide rod (8), and a guide groove (9). The cylinder (5) is fixedly installed on the top of the workbench (1). The output end of the cylinder (5) is fixedly connected to the connecting plate (6). The clamping blocks (7) are fixedly connected to both sides of the connecting plate (6). The guide rod (8) is fixedly connected to one side of the clamping block (7). The positioning block (4) has a guide groove (9) inside. The top end of the guide rod (8) passes through the interior of the guide groove (9).

2. The multi-station testing station for hydraulic seals according to claim 1, characterized in that: The positioning block (4) is designed to be L-shaped, with one end of the clamping block (7) fitting against one side of the positioning block (4), and the guide groove (9) is inclined from right to left.

3. The multi-station testing station for hydraulic seals according to claim 1, characterized in that: The inner side of the positioning block (4) is fixedly connected to a sealing gasket (10), one end of the hydraulic seal is engaged with the sealing gasket (10), and the top of the support block (2) is provided with an arc groove that matches the hydraulic seal.

4. The multi-station testing station for hydraulic seals according to claim 3, characterized in that: The sealing detection mechanism includes an air pump (11), a branch hose (12), a nozzle (13), and a pressure gauge (14). The air pump (11) is fixedly installed on the top of the workbench (1). The output end of the air pump (11) is connected to the branch hose (12). The two ends of the branch hose (12) are respectively connected to the nozzle (13). The pressure gauge (14) is fixedly installed on the branch hose (12). A solenoid valve (16) is also installed on the branch hose (12).

5. The multi-station testing station for hydraulic seals according to claim 4, characterized in that: A sealing cover (15) is fixedly connected to the outside of the nozzle (13), and the outside of the sealing cover (15) is engaged with the end of the hydraulic seal away from the sealing gasket (10).

6. The multi-station testing station for hydraulic seals according to claim 5, characterized in that: The sealing gasket (10) and sealing cover (15) are both made of rubber, the slide rail (3) is shaped like an I-beam, and the clamp (7) is the same length as the hydraulic seal.