Clamp for testing bearing

Abstract

The utility model provides a clamp for testing a bearing, which relates to the technical field of bearings and comprises a clamping mechanism, an auxiliary mechanism is arranged at the bottom end of the clamping mechanism, the clamping mechanism comprises a hollow pipe, an empty plate is arranged on the inner wall of the hollow pipe, and the inner wall of the hollow pipe is slidably connected with the outer side of the empty plate in a penetrating manner. An inner clamping plate is arranged on one side of the bare plate. The telescopic rod extends to force the bare plate to extend out of the hollow pipe at the same time, when the bare plate extends, the folded plate can cause external force extrusion on the movable arm, the outer clamping plate makes contact with the outer ring of the bearing and is fixed under the influence of the front assembly, then the lead screw is rotated, and the inner clamping plate moves at the original position. The outer ring and the inner ring of the bearing are contacted and fixed, so that the inner ring and the outer ring are fixed at the same time, the fixed bearing cannot be influenced by extra load due to vibration of test equipment or other external force, and the actual test state of the bearing cannot be changed.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a fixture for testing bearings. Background Art

[0002] A bearing is a mechanical component primarily used to support rotating parts and improve motion efficiency by reducing friction. Typically consisting of an inner ring, an outer ring, rolling elements, and a cage, a bearing allows rotating parts to rotate smoothly and freely under load. Bearings are widely used in various mechanical devices, such as electric motors, automobiles, aircraft, and industrial machinery. They can be categorized into various types, including rolling bearings, plain bearings, ball bearings, and cylindrical roller bearings. Their design and material selection have a significant impact on the performance, lifespan, and efficiency of these devices.

[0003] Conventional fixtures often only secure the inner or outer ring of a bearing, making it difficult to effectively secure both simultaneously. This makes the bearing susceptible to vibration and other external forces during testing, which in turn affects the accuracy of test data. Furthermore, existing fixtures often rely on manual adjustment to secure the bearing, which is complex and time-consuming, hindering testing efficiency. Furthermore, unstable fixation can cause the bearing to shift or tilt during testing, further increasing test errors. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and provide a fixture for testing bearings.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fixture for testing bearings, comprising: a clamping mechanism, an auxiliary mechanism is provided at the bottom end of the clamping mechanism, the clamping mechanism comprises an empty tube, the inner wall of the empty tube is provided with an empty plate, the inner wall of the empty tube is slidably connected to the outer side of the empty plate, an inner plywood is provided on one side of the empty plate, one side of the empty plate is slidably connected to one end of the inner plywood, a folding plate is provided on one side of the empty plate, one side of the empty plate is fixedly connected to one end of the folding plate, a movable arm is provided on the inner wall of one end of the empty plate, the inner wall of one end of the empty plate is movably connected to the bottom end of the movable arm, the top of the movable arm is provided with an outer plywood, and the top of the movable arm is movably connected to the bottom side of the outer plywood.

[0006] As a preferred embodiment, the auxiliary mechanism includes a base support, a support rod is provided at the top of the base support, the top of the base support is fixedly connected to the bottom end of the support rod, the other end of the support rod is fixedly connected to the outside of the empty tube, and a telescopic rod is provided at the top of the base support, the top of the base support is fixedly connected to the bottom end of the telescopic rod.

[0007] As a preferred embodiment, the inner wall of the hollow plate is provided with a spring sheet, the inner wall of the hollow plate is fixedly connected to one end of the spring sheet, the other end of the spring sheet is provided with an inner plate, and the other end of the spring sheet is fixedly connected to one side of the inner plate.

[0008] As a preferred embodiment, the outer side of one end of the inner plate is in sliding contact with the inner wall of the empty plate, and one end of the inner plate is fixedly connected to the inner wall of the empty tube.

[0009] As a preferred embodiment, a cone block is provided on one side of the hollow plate, one side of the hollow plate is in sliding contact with the outer side of the cone block, and one end of the cone block is fixedly connected to one end of the telescopic rod.

[0010] As a preferred embodiment, a screw rod is provided on the inner wall of the inner splint, and the inner wall of the inner splint is threadedly connected to the outer side of the screw rod.

[0011] As a preferred embodiment, a cross bar is provided on one side of the empty tube, one side of the empty tube is fixedly connected to one end of the cross bar, and the other end of the cross bar is movably connected to the inner wall of the middle end of the movable arm.

[0012] As a preferred embodiment, a guide rod is provided on one side of the empty tube, one side of the empty tube is fixedly connected to one end of the guide rod, and the outer side of the guide rod is slidably connected to the inner wall of the outer splint.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. Extend the telescopic rod, thereby forcing the empty plate to extend from the empty tube at the same time. When the empty plate extends, the folding plate will cause external force to squeeze the movable arm. Under the influence of the front component, the outer clamping plate will move parallel to its original position, making contact with and fixing the outer ring of the bearing. Then, the screw rod is rotated to move the inner clamping plate at its original position, making it contact with and fixing the inner ring of the bearing. Therefore, by fixing the inner and outer rings at the same time, the fixed bearing will not be affected by additional load due to vibration or other external forces of the test equipment, thereby not changing the actual test state of the bearing.

[0015] 2. There are multiple support rods designed on the outside of the air tube, and the bottom of the support rods is designed with a bottom bracket. The existence of the bottom bracket can increase the contact area between the entire device and the ground, help to disperse the load applied to the device, lower the center of gravity, improve the stability of the equipment during the test, and avoid tilting or displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a fixture for testing bearings provided by the utility model.

[0017] Figure 2 The present invention provides a side structural schematic diagram of a clamping mechanism assembly of a fixture for testing bearings.

[0018] Figure 3 The utility model provides a schematic side sectional structure diagram of a clamping mechanism assembly of a fixture for testing bearings.

[0019] Figure 4 This is a schematic diagram of the enlarged structure of the auxiliary mechanism component of a fixture for testing bearings provided by the utility model.

[0020] Legend:

[0021] 1. Clamping mechanism; 11. Empty tube; 12. Empty plate; 13. Inner plate; 14. Screw; 15. Folding plate; 16. Movable arm; 17. Outer plate; 18. Crossbar; 19. Shrapnel; 110. Inner plate; 111. Cone block; 112. Telescopic rod; 113. Guide rod;

[0022] 2. Auxiliary mechanism; 21. Bottom support; 22. Support rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a fixture for testing bearings, comprising: a clamping mechanism 1, an auxiliary mechanism 2 is provided at the bottom end of the clamping mechanism 1, the clamping mechanism 1 comprises an empty tube 11, an inner wall of the empty tube 11 is provided with an empty plate 12, the inner wall of the empty tube 11 is slidably connected to the outer side of the empty plate 12, an inner splint 13 is provided on one side of the empty plate 12, one side of the empty plate 12 is slidably connected to one end of the inner splint 13, a folding plate 15 is provided on one side of the empty plate 12, one side of the empty plate 12 is fixedly connected to one end of the folding plate 15, a movable arm 16 is provided on the inner wall of one end of the empty plate 12, the inner wall of one end of the empty plate 12 is movably connected to the bottom end of the movable arm 16, an outer splint 17 is provided on the top end of the movable arm 16, and the top end of the movable arm 16 is movably connected to the bottom side of the outer splint 17, the inner wall of the empty plate 12 is provided with a spring piece 19, the inner wall of the empty plate 12 is fixedly connected to one end of the spring piece 19, and the spring piece 1 9 is provided with an inner plate 110 at the other end, the other end of the spring piece 19 is fixedly connected to one side of the inner plate 110, the outer side of one end of the inner plate 110 is in sliding contact with the inner wall of the empty plate 12, one end of the inner plate 110 is fixedly connected to the inner wall of the empty tube 11, a cone block 111 is provided on one side of the empty plate 12, one side of the empty plate 12 is in sliding contact with the outer side of the cone block 111, one end of the cone block 111 is fixedly connected to one end of the telescopic rod 112, and the inner side of the inner splint 13 is fixedly connected to the inner wall of the empty plate 12. A screw rod 14 is provided on the wall, and the inner wall of the inner splint 13 is threadedly connected to the outer side of the screw rod 14. A cross bar 18 is provided on one side of the empty tube 11, and one side of the empty tube 11 is fixedly connected to one end of the cross bar 18, and the other end of the cross bar 18 is movably connected to the inner wall of the middle end of the movable arm 16. A guide rod 113 is provided on one side of the empty tube 11, and one side of the empty tube 11 is fixedly connected to one end of the guide rod 113, and the outer side of the guide rod 113 is slidably connected to the inner wall of the outer splint 17.

[0026] In this embodiment, when this type of fixture for testing bearings is used, in order to ensure the stability of the testing process, the inner ring of the bearing is placed on the middle end of the hollow tube 11. At this time, the telescopic rod 112 is extended, so that the cone block 111 exerts an external force on the four hollow plates 12 during the movement, thereby forcing them to extend simultaneously from the hollow tube 11. When the hollow plates 12 extend, the folding plate 15 exerts an external force on the movable arm 16, causing its angle to change, gradually evolving from an inclined form to a vertical state. Under the influence of the front component, the outer clamping plate 17 moves parallel to its original position, so that it contacts and is fixed with the outer ring of the bearing. Subsequently, the screw rod 14 is rotated, so that the inner clamping plate 13 moves at its original position, so that it contacts and is fixed with the inner ring of the bearing. Therefore, by fixing the inner and outer rings at the same time, the fixed bearing will not be affected by additional loads due to vibration or other external forces of the testing equipment, thereby not changing the actual testing state of the bearing.

[0027] Secondly, a spring clip 19 is installed on the inner wall of the empty plate 12. When the external force of the cone block 111 disappears, the spring clip 19 uses its own retraction to reset the empty plate 12. Due to the reset of the empty plate 12, the various components will also be linked accordingly, thereby releasing the clamping of the bearing. The design of the spring clip 19 can reduce the need for manual intervention by the operator, and can automatically release the clamping state after each test is completed, thereby simplifying the operation process.

[0028] Example 2

[0029] like Figure 1-Figure 4 As shown, the auxiliary mechanism 2 includes a base 21, a support rod 22 is provided at the top of the base 21, the top of the base 21 is fixedly connected to the bottom end of the support rod 22, the other end of the support rod 22 is fixedly connected to the outside of the empty tube 11, and a telescopic rod 112 is provided at the top of the base 21, and the top of the base 21 is fixedly connected to the bottom end of the telescopic rod 112.

[0030] In this embodiment, a plurality of support rods 22 are designed on the outside of the empty tube 11, and a base 21 is correspondingly designed at the bottom end of the support rod 22. The presence of the base 21 can increase the contact area between the entire device and the ground, help disperse the load applied to the device, lower the center of gravity, improve the stability of the equipment during the test, avoid tilting or displacement, and the larger contact area can effectively absorb and disperse vibrations from the ground, prevent external interference from affecting the test results, and improve the reliability of the test data.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A fixture for testing bearings, characterized in that: include: A clamping mechanism (1) is provided at the bottom end of the clamping mechanism (1), wherein an auxiliary mechanism (2) is provided, wherein the clamping mechanism (1) comprises an empty tube (11), wherein an empty plate (12) is provided on the inner wall of the empty tube (11), wherein the inner wall of the empty tube (11) is slidably connected to the outer side of the empty plate (12), wherein an inner clamping plate (13) is provided on one side of the empty plate (12), wherein one side of the empty plate (12) is slidably connected to one end of the inner clamping plate (13), wherein A folding plate (15) is provided on one side of the empty plate (12), and one side of the empty plate (12) is fixedly connected to one end of the folding plate (15). A movable arm (16) is provided on the inner wall of one end of the empty plate (12), and the inner wall of one end of the empty plate (12) is movably connected to the bottom end of the movable arm (16). An outer splint (17) is provided on the top end of the movable arm (16), and the top end of the movable arm (16) is movably connected to the bottom side of the outer splint (17).

2. A fixture for testing bearings according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a base (21), a support rod (22) is provided at the top end of the base (21), the top end of the base (21) is fixedly connected to the bottom end of the support rod (22), the other end of the support rod (22) is fixedly connected to the outside of the empty tube (11), and a telescopic rod (112) is provided at the top end of the base (21), and the top end of the base (21) is fixedly connected to the bottom end of the telescopic rod (112).

3. A fixture for testing bearings according to claim 1, characterized in that: The inner wall of the hollow plate (12) is provided with a spring piece (19), the inner wall of the hollow plate (12) is fixedly connected to one end of the spring piece (19), the other end of the spring piece (19) is provided with an inner plate (110), and the other end of the spring piece (19) is fixedly connected to one side of the inner plate (110).

4. A fixture for testing bearings according to claim 3, characterized in that: The outer side of one end of the inner plate (110) is in sliding contact with the inner wall of the empty plate (12), and one end of the inner plate (110) is fixedly connected to the inner wall of the empty tube (11).

5. The fixture for testing bearings according to claim 1, characterized in that: A cone block (111) is provided on one side of the hollow plate (12), one side of the hollow plate (12) is in sliding contact with the outer side of the cone block (111), and one end of the cone block (111) is fixedly connected to one end of the telescopic rod (112).

6. A fixture for testing bearings according to claim 1, characterized in that: The inner wall of the inner clamping plate (13) is provided with a screw rod (14), and the inner wall of the inner clamping plate (13) is threadedly connected to the outer side of the screw rod (14).

7. The fixture for testing bearings according to claim 1, characterized in that: A cross bar (18) is provided on one side of the empty tube (11), one side of the empty tube (11) is fixedly connected to one end of the cross bar (18), and the other end of the cross bar (18) is movably connected to the inner wall of the middle end of the movable arm (16).

8. The fixture for testing bearings according to claim 1, characterized in that: A guide rod (113) is provided on one side of the empty tube (11), one side of the empty tube (11) is fixedly connected to one end of the guide rod (113), and the outer side of the guide rod (113) is slidably connected to the inner wall of the outer clamping plate (17).

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