Tension clamp for testing cage tensile strength
By designing an adjustable tension clamp, the problem of not being able to fix cages of different sizes in the existing technology is solved, and efficient testing of cage tensile strength is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI XIZHU HOLD RACK CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-19
AI Technical Summary
In the prior art, the tension clamp of the cage device cannot fix cages of different sizes, resulting in reduced detection efficiency.
A tension clamp was designed, comprising a fixed plate, a sliding plate, a clamping plate, a cylinder, a motor, and a friction wheel. Through the combination of a sliding groove, a threaded rod, and a telescopic rod, adjustable fixing and tensile testing of cages of different sizes can be achieved.
It enables stable fixation and efficient tensile testing of cages of different sizes, thus improving testing efficiency.
Smart Images
Figure CN224382972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cage testing technology, and in particular to a tensile clamp for testing the tensile strength of a cage. Background Technology
[0002] The cage (also known as a bearing retainer or isolator) is an important component of a bearing. Its core function is to separate and guide the rolling elements (such as balls and rollers) to move along the correct trajectory inside the bearing, preventing the rolling elements from directly contacting each other or derailing.
[0003] In existing technologies, some cage devices enclose the rolling elements and uniformly isolate them through pockets or windows to reduce friction and wear. They also guide the rolling elements to distribute the load evenly. Under high-speed or high-load conditions, the cage must withstand centrifugal force, inertial force, and chemical corrosion. Therefore, the material must possess high strength, low friction, wear resistance, and good thermal conductivity. Tensile strength testing of the cage is necessary. However, some cage devices use tensile clamps that cannot hold cages of different sizes, leading to reduced testing efficiency. Utility Model Content
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] A tension clamp for testing the tensile strength of a cage includes a fixed plate, a placement plate fixedly connected to the outside of the fixed plate, a motor fixedly connected to the top of the placement plate, a bidirectional threaded rod fixedly connected to the drive end of the motor, a sliding plate threaded to the outside of the bidirectional threaded rod, a groove formed on the outside of the fixed plate, one end of the sliding plate slidably connected to the inside of the groove, a clamping plate fixedly connected to the outside of the sliding plate, a spring disposed inside the clamping plate, a pull rod fixedly connected to one end of the spring, a cylinder fixedly connected to the outside of the fixed plate, a telescopic rod fixedly connected to the drive end of the cylinder and passing through the fixed plate, a clamping plate fixedly connected to one end of the telescopic rod, and a slide rail plate fixedly connected to the outside of the fixed plate, with a slider slidably connected inside the slide rail plate for fixing and stretching ring cages of different sizes.
[0006] As a further description of the above technical solution:
[0007] A connecting rod is fixedly connected to the outside of the clamping plate 2, and a telescopic rod 2 is fixedly connected to the outside of the connecting rod. A circular retainer is sleeved on the outside of the pull rod for stretching the circular retainer.
[0008] As a further description of the above technical solution:
[0009] A base plate is fixedly connected to the bottom of the fixed plate one, and a spring telescopic rod three is fixedly connected to the top of the base plate for adjusting the height of the base plate.
[0010] As a further description of the above technical solution:
[0011] One end of the elastic telescopic rod three is fixedly connected to a support plate, and the top of the support plate is fixedly connected to a motor two for supporting the motor two.
[0012] As a further description of the above technical solution:
[0013] The drive end of the second motor is fixedly connected to a rotating shaft, and a fixed plate is rotatably connected to the outside of the rotating shaft. The bottom of the fixed plate is fixedly connected to the top of the support plate, which is used to drive the friction wheel to rotate.
[0014] As a further description of the above technical solution:
[0015] The second fixed plate is rotatably connected to the outside of the second rotating shaft, and one end of the second rotating shaft is rotatably connected to the third fixed plate. The bottom of the third fixed plate is fixedly connected to the top of the support plate to allow the friction wheel to rotate.
[0016] As a further description of the above technical solution:
[0017] Friction wheels are fixedly connected to the outside of both the first and second rotating shafts. A damper is fixedly connected to the outside of the second fixed plate. A limiting plate is fixedly connected to one end of the damper, which is used to drive the ring retainer to rotate.
[0018] As a further description of the above technical solution:
[0019] The pull rod is externally slidably connected to the inside of the first clamping plate, and the slider is externally fixedly connected to the outside of the second clamping plate, for ensuring the fixation and stretching of the ring retainer.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the first motor is started, which drives the bidirectional threaded rod to rotate, thereby causing the slide plate to slide along the slide groove. The position of the pull rod is adjusted and placed on the pull rod. The cylinder is started, which drives the telescopic rod and adjusts the position of the second clamping plate, so that the second clamping plate abuts against the ring retainer, thereby achieving the effect of fixing the ring retainer and stretching the ring retainer, thus improving the efficiency of the testing work.
[0022] 2. In this utility model, the limiting plate is squeezed to deform the damper, the circular ring retainer is placed on the friction wheel, the limiting plate is released to clamp the circular ring retainer, the cylinder is started, the position of the connecting rod is adjusted, and then the first telescopic rod is stretched to clamp the circular ring retainer. The first motor is started to drive the pull rod to move closer to the outside of the circular ring retainer and squeeze the circular ring retainer, thereby achieving the effect of testing the compressive strength of the circular ring retainer. Attached Figure Description
[0023] Figure 1 This is a perspective view of the tension clamp for testing the tensile strength of a cage proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the telescopic rod of the tension clamp for testing the tensile strength of a cage, as proposed in this utility model.
[0025] Figure 3 This is a schematic diagram of the motor structure of the tension clamp for testing the tensile strength of a cage proposed in this utility model.
[0026] Figure 4 This is a schematic diagram of the pull rod structure of the tension clamp for testing the tensile strength of a cage proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the friction wheel structure of the tension clamp for testing the tensile strength of a cage, as proposed in this utility model.
[0028] Legend:
[0029] 1. Fixed plate one; 2. Placement plate; 3. Motor one; 4. Double-sided threaded rod; 5. Slide groove; 6. Slide plate; 7. Clamping plate one; 8. Spring; 9. Pull rod; 10. Cylinder; 11. Telescopic rod one; 12. Slide rail plate; 13. Slider; 14. Clamping plate two; 15. Connecting rod; 16. Telescopic rod two; 17. Circular ring retainer; 18. Base plate; 19. Elastic telescopic rod three; 20. Support plate; 21. Motor two; 22. Rotating shaft one; 23. Fixed plate two; 24. Friction wheel; 25. Rotating shaft two; 26. Fixed plate three; 27. Damper; 28. Limiting plate. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a tension clamp for testing the tensile strength of a cage, comprising a fixed plate 1, a placement plate 2 fixedly connected to the outside of the fixed plate 1, a motor 3 fixedly connected to the top of the placement plate 2, a bidirectional threaded rod 4 fixedly connected to the drive end of the motor 3, a sliding plate 6 threadedly connected to the outside of the bidirectional threaded rod 4, a groove 5 formed on the outside of the fixed plate 1, one end of the sliding plate 6 slidably connected inside the groove 5, a clamping plate 7 fixedly connected to the outside of the sliding plate 6, a spring 8 disposed inside the clamping plate 7, a pull rod 9 fixedly connected to one end of the spring 8, a cylinder 10 fixedly connected to the outside of the fixed plate 1, a telescopic rod 11 fixedly connected to the drive end of the cylinder 10, the telescopic rod 11 penetrating the fixed plate 1, and a clamping plate 14 fixedly connected to one end of the telescopic rod 11.
[0032] Reference Figures 2 to 4 The fixed plate 1 is externally fixedly connected to a slide rail 12, and the slide rail 12 is internally slidably connected to a slider 13 for fixing and stretching ring retainers 17 of different sizes. The pull rod 9 is externally slidably connected to the inside of the clamping plate 7, and the slider 13 is externally fixedly connected to the outside of the clamping plate 14 to ensure the fixing and stretching of the ring retainer 17.
[0033] Reference Figure 1 , Figure 5 A connecting rod 15 is fixedly connected to the outside of the clamping plate 14. A telescopic rod 16 is fixedly connected to the outside of the connecting rod 15. A circular retainer 17 is sleeved on the outside of the pull rod 9 for stretching the circular retainer 17. A base plate 18 is fixedly connected to the bottom of the fixing plate 1. A spring telescopic rod 19 is fixedly connected to the top of the base plate 18 for adjusting the height of the base plate 18. A support plate 20 is fixedly connected to one end of the spring telescopic rod 19. A motor 21 is fixedly connected to the top of the support plate 20 for supporting the motor 21.
[0034] Reference Figure 5 The drive end of motor 21 is fixedly connected to a rotating shaft 22. A fixing plate 23 is rotatably connected to the outside of the rotating shaft 22, and the bottom of the fixing plate 23 is fixedly connected to the top of the support plate 20 for driving the friction wheel 24 to rotate. A rotating shaft 25 is rotatably connected to the outside of the fixing plate 23. A fixing plate 3 26 is rotatably connected to one end of the rotating shaft 25, and the bottom of the fixing plate 3 26 is fixedly connected to the top of the support plate 20 for allowing the friction wheel 24 to rotate. Friction wheels 24 are fixedly connected to the outside of both rotating shaft 22 and rotating shaft 25. A damper 27 is fixedly connected to the outside of the fixing plate 23. A limiting plate 28 is fixedly connected to one end of the damper 27 for driving the ring retainer 17 to rotate.
[0035] Working principle: Start motor 3, which drives the bidirectional threaded rod 4 to rotate, thereby moving the slide plate 6 along the slide groove 5, moving the clamping plate 7, and bringing the pull rods 9 closer together. Then stop, ensuring that the ring retainer 17 can be placed on the pull rod 9, and squeeze the limiting plate 28 to deform the damper 27. Place ring retainers 17 of different sizes between the friction wheels 24, release the pressure on the limiting plate 28, and the damper 27 begins to rebound, moving the limiting plate 28 to clamp the ring retainer 17. Then, start motor 3 in reverse as described above. 3. Move the pull rod 9 in its original direction until it abuts against the inner surface of the ring retainer 17. Start the cylinder 10 to extend and retract the telescopic rod 11, which in turn moves the clamping plate 14. The clamping plate 14 slides on the slide rail 12 via the slider 13, ensuring that the slide rail 12 can move smoothly and abut against the pull rod 9, thus fixing the ring retainer 17 in place. Then, start the motor 3 to move the pull rod 9 in the opposite direction, stretching the ring retainer 17 to achieve the effect of stretching the ring retainer 17 for testing.
[0036] When it is necessary to test the compressive strength of the ring retainer 17, the starting cylinder 10 drives the telescopic rod 11 to continue extending and retracting, causing the clamping plate 14 to continue moving towards the ring retainer 17. This allows the clamping plate 14 to press against the side surface of the ring retainer 17, while the pull rod 9 slides inside the clamping plate 17. Simultaneously, the clamping plate 14 presses against the pull rod 9, causing it to continue sliding and compressing the spring 8. This ensures that the pull rod 9 does not affect the movement of the clamping plate 14, achieving the effect of testing the side surface of the ring retainer 17. If testing the side surface of the ring retainer 17... When adjusting the pressure resistance of other parts, first, as described above, start the cylinder 10 to move the clamping plate 14 a certain distance away. At the same time, the spring 8 begins to rebound, driving the pull rod 9 back to its original position. Start the motor 21 to drive the rotating shaft 22 to continue rotating, thereby driving the friction wheel 24 to continue rotating. The friction wheel 24 drives the ring retainer 17 to rotate through friction. Adjust the position of the ring retainer 17, and then continue to start the cylinder 10 to allow the clamping plate 14 to continue to press different positions on the side of the ring retainer 17.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tensile fixture for testing the tensile strength of a retainer, comprising a fixed plate (1), characterised in that: A placement plate (2) is fixedly connected to the outside of the fixed plate (1). A motor (3) is fixedly connected to the top of the placement plate (2). A bidirectional threaded rod (4) is fixedly connected to the drive end of the motor (3). A sliding plate (6) is threadedly connected to the outside of the bidirectional threaded rod (4). A groove (5) is provided on the outside of the fixed plate (1). One end of the sliding plate (6) is slidably connected to the inside of the groove (5). A clamping plate (7) is fixedly connected to the outside of the sliding plate (6). An internal spring (8) is provided, and a pull rod (9) is fixedly connected to one end of the spring (8). A cylinder (10) is fixedly connected to the outside of the fixed plate (1). A telescopic rod (11) is fixedly connected to the driving end of the cylinder (10), and the telescopic rod (11) passes through the fixed plate (1). A clamping plate (14) is fixedly connected to one end of the telescopic rod (11). A slide rail plate (12) is fixedly connected to the outside of the fixed plate (1). A slider (13) is slidably connected inside the slide rail plate (12).
2. The tensile grip for testing the tensile strength of a retainer cage of claim 1, wherein: The clamping plate 2 (14) is fixedly connected to the outside of a connecting rod (15), the connecting rod (15) is fixedly connected to the outside of a telescopic rod 2 (16), and the pull rod (9) is fitted with a circular retainer (17).
3. The tensile grip for testing the tensile strength of a retainer cage of claim 1, wherein: The bottom of the fixed plate (1) is fixedly connected to a base plate (18), and the top of the base plate (18) is fixedly connected to a spring telescopic rod (19).
4. The tensile grip for testing the tensile strength of a retainer cage of claim 3, wherein: One end of the elastic telescopic rod three (19) is fixedly connected to a support plate (20), and the top of the support plate (20) is fixedly connected to a motor two (21).
5. The tensile grip for testing the tensile strength of a retainer cage of claim 4, wherein: The drive end of the second motor (21) is fixedly connected to a rotating shaft (22), and the outside of the rotating shaft (22) is rotatably connected to a fixing plate (23), and the bottom of the fixing plate (23) is fixedly connected to the top of the support plate (20).
6. The tensile grip for testing the tensile strength of a retainer cage of claim 5, wherein: The second fixed plate (23) is rotatably connected to the outside of the second rotating shaft (25), and one end of the second rotating shaft (25) is rotatably connected to the third fixed plate (26), and the bottom of the third fixed plate (26) is fixedly connected to the top of the support plate (20).
7. The tensile grip for testing the tensile strength of a retainer cage of claim 5, wherein: Friction wheels (24) are fixedly connected to the outside of the first rotating shaft (22) and the second rotating shaft (25). A damper (27) is fixedly connected to the outside of the second fixed plate (23). A limiting plate (28) is fixedly connected to one end of the damper (27).
8. The tensile grip for testing cage tensile strength of claim 1, wherein: The pull rod (9) is externally slidably connected to the inside of the first clamping plate (7), and the slider (13) is externally fixedly connected to the outside of the second clamping plate (14).