Adjustable bearing pretightening force adjusting device

Abstract

The utility model discloses an adjustable bearing pre-tightening force adjusting device which comprises a pre-tightening force adjusting assembly, a bearing pre-tightening force adjusting assembly and a bearing pre-tightening force adjusting assembly. The protection assembly comprises a fixed block, a movable plate, a connecting plate, a protection pad and a spring; the fixed blocks are fixed above the inner side of the connecting frame and located on the two sides of the transverse rod, the movable plates are located on the inner side faces of the fixed blocks, the connecting plates are located on the outer side faces of the outer side ends of the movable plates, the protective pads are fixed to the outer side faces of the connecting plates, and the springs are located on the inner side faces of the movable plates. By arranging the fixed block, the movable plate, the connecting plate, the protective pad and the spring, when the limiting piece excessively rotates, the limiting piece collides with the protective pad, the connecting plate fixes the inner side face of the protective pad, and the spring is located between the movable plate and the cross rod, so that the connecting plate, the movable plate and the spring isolate the collision force on the outer side of the connecting plate; therefore, the connecting plate, the movable plate and the spring protect the cross rod, and the cross rod is prevented from being damaged due to collision of the limiting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to an adjustable bearing preload adjustment device. Background Art

[0002] A bearing is a mechanical element used to support and guide rotational or linear motion. As an indispensable basic component in various types of mechanical equipment, an adjustment device must be used to adjust the preload of the bearing during installation.

[0003] When the existing bearing preload adjustment device is in use, the limit piece in the device is clamped with the nut, and then the motor drives the limit piece to rotate slightly through the connecting rod, so that the limit piece nut rotates, thereby adjusting the preload of the bearing. However, the bearing rod is connected to the device connecting frame through a clamping block. If an accident occurs to the motor, it will cause the connecting rod to rotate excessively, thereby damaging the cross bar in the clamping block. Therefore, it is necessary to propose an adjustment device with a protective function to protect the cross bar. Utility Model Content

[0004] The purpose of the present utility model is to provide an adjustable bearing preload adjustment device to solve the problem proposed in the above background technology that when the existing bearing preload adjustment device is used, the limit piece in the device is clamped with the nut, and then the motor drives the limit piece to rotate slightly through the connecting rod, so that the limit piece nut rotates, thereby adjusting the preload of the bearing, but the bearing rod is connected to the device connecting frame through the clamping block. If an accident occurs to the motor, it will cause the connecting rod to rotate excessively, thereby causing damage to the cross bar in the clamping block.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is an adjustable bearing preload adjustment device, comprising:

[0007] A preload adjustment assembly, comprising a connecting frame and a crossbar;

[0008] The cross bar is fixed on the upper inner side of the connecting frame;

[0009] A protective assembly comprising a fixed block, a movable plate, a connecting plate, a protective pad and a spring;

[0010] The fixed block is fixed above the inner side of the connecting frame and is located on both sides of the cross bar. The movable plate is located on the inner side of the fixed block. The connecting plate is located on the outer side of the outer end of the movable plate. The protective pad is fixed on the outer side of the connecting plate. The spring is located on the inner side of the movable plate.

[0011] Furthermore, the inner side surfaces of the connecting plates are fixedly connected with connecting rings, the outer side surfaces of the movable plates are fixedly connected with an annular rod, and the connecting rings are rotatably connected to the annular rod;

[0012] A movable shaft is movably connected at the connection point between the movable plate and the fixed block.

[0013] Furthermore, a magnetic block is clamped and adsorbed on the inner side surface of the outer end of the movable plate, a mounting ring is magnetically attracted on the surface of the crossbar, and a spring is fixed between the magnetic block and the mounting ring.

[0014] Further, it also includes placing components;

[0015] The placement assembly includes a fixed rod, a movable ring and a placement frame;

[0016] The fixed rod is fixed to the bottom end of the installation ring, the movable ring is rotatably connected to the lower surface of the fixed rod, and the placement rack is fixed to both sides of the movable ring.

[0017] Furthermore, the bottom end of the fixed rod is fixedly connected to the support rod, the other end of the support rod is fixedly connected to the inner side of the connecting frame, and the movable ring is provided with an annular groove at the connection with the fixed rod.

[0018] Furthermore, the preload force adjustment assembly further includes a bearing rod, a nut, a clamping block and a limiting member;

[0019] The bearing rod is located inside the connecting frame, the nut is sleeved on the surface of the bearing rod, the clamping block is clamped on the top of the bearing rod, and the limiting piece is clamped on one side of the nut;

[0020] The cross bar is fixedly connected to the clamping block.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. The utility model provides a fixed block, a movable plate, a connecting plate, a protective pad and a spring. When the limiter rotates excessively, the limiter collides with the protective pad. The connecting plate fixes the inner side of the protective pad. At the same time, the spring is located between the movable plate and the cross bar, so that the connecting plate, the movable plate and the spring isolate the impact force of the limiter on the outer side of the connecting plate, thereby allowing the connecting plate, the movable plate and the spring to protect the cross bar and prevent the cross bar from being damaged by the impact of the limiter.

[0023] 2. Based on the beneficial effect 1, at the same time, a fixed rod is set at the bottom end of the horizontal bar, and a movable ring is rotatably connected to the surface of the fixed rod. Placement racks are fixed on both sides of the movable ring. When the movable plate is not in use, the magnetic block on the inner side is taken out and the movable plate is pushed to store and place the movable plate. At this time, the taken out magnetic block is placed on the placement rack, and the magnetic block is adsorbed with the placement rack, so that the placement rack can store and place the magnetic block, thereby avoiding the magnetic block hanging on both sides of the horizontal bar when the movable plate is in a vertical state. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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.

[0025] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the protective component of the utility model;

[0027] Figure 3 This is a schematic diagram of the exploded structure of the protective component of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the components of the utility model;

[0029] Figure 5 This is a schematic diagram of the exploded structure of the components of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 11. Connecting frame; 12. Bearing rod; 13. Nut; 14. Block; 15. Cross bar; 16. Limiting piece; 21. Fixed block; 211. Movable shaft; 22. Movable plate; 23. Connecting plate; 24. Protective pad; 25. Connecting ring; 26. Annular rod; 27. Magnetic block; 28. Spring; 29. Mounting ring; 31. Fixed rod; 32. Movable ring; 33. Placement frame; 34. Support rod; 35. Annular groove. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0035] See also Figure 1-Figure 3As shown, this embodiment is an adjustable bearing preload adjustment device, comprising:

[0036] The preload force adjustment assembly includes a connecting frame 11 and a crossbar 15;

[0037] The crossbar 15 is fixed on the upper inner side of the connecting frame 11;

[0038] The connecting frame 11 is used to connect other components such as the motor, and the crossbar 15 is used to connect the clamping block 14;

[0039] The protection assembly includes a fixed block 21, a movable plate 22, a connecting plate 23, a protection pad 24 and a spring 28;

[0040] The fixed block 21 is fixed to the upper inner side of the connecting frame 11 and is located on both sides of the crossbar 15. The movable plate 22 is located on the inner side of the fixed block 21. The connecting plate 23 is located on the outer side of the outer end of the movable plate 22. The protective pad 24 is fixed to the outer side of the connecting plate 23. The spring 28 is located on the inner side of the movable plate 22.

[0041] The fixing block 21 is used for connecting the movable plate 22, the movable plate 22 is used for connecting the connecting plate 23, the connecting plate 23 is used for connecting the protective pad 24, the protective pad 24 is used to protect the connecting plate 23, and the spring 28 is used to protect the movable plate 22;

[0042] The inner side of the connecting plate 23 is fixedly connected with a connecting ring 25, and the outer side of the movable plate 22 is fixedly connected with an annular rod 26. The connecting ring 25 is rotatably connected to the annular rod 26;

[0043] The connection between the movable plate 22 and the fixed block 21 is movably connected with a movable shaft 211;

[0044] The connecting ring 25 and the annular rod 26 are used to connect the connecting plate 23 and the outer end of the movable plate 22. The movable shaft 211 is used to rotate the movable plate 22. When the movable plate 22 is not in use, the movable plate 22 can be rotated so that the movable plate 22 is rotated to a vertical state through the movable shaft 211.

[0045] A magnetic block 27 is attached to the inner side surface of the outer end of the movable plate 22, and a mounting ring 29 is magnetically attracted to the surface of the crossbar 15. A spring 28 is fixed between the magnetic block 27 and the mounting ring 29.

[0046] The magnet 27 and the mounting ring 29 are both used to connect the spring 28, and the magnet 27 and the mounting ring 29 are used to connect the movable plate 22 and the cross bar 15. The spring 28 supports the outer end of the movable plate 22. The mounting ring 29 is adsorbed and connected to the cross bar 15 to facilitate replacement of the mounting ring 29 and the spring 28.

[0047] Working principle:

[0048] When the limiter 16 rotates excessively, the limiter 16 collides with the protective pad 24. At this time, the impact force causes the connecting plate 23 and the movable plate 22 to move backward through the spring 28. At the same time, the spring 28 absorbs part of the impact force, so that the connecting plate 23, the movable plate 22 and the spring 28 isolate the impact force of the limiter 16 on the outer side of the connecting plate 23, so that the connecting plate 23, the movable plate 22 and the spring 28 protect the cross bar 15 and prevent the cross bar 15 from being damaged by the impact of the limiter 16.

[0049] When the assembly is not in use, remove the magnetic block 27 by hand, and then push the movable plate 22 by hand so that the movable plate 22 rotates upward through the movable shaft 211. At this time, the movable plate 22 is in a vertical state, thereby storing the assembly.

[0050] When switching the direction of the connecting plate 23, manually rotate the connecting plate 23. At this time, the connecting ring 25 rotates outside the annular rod 26, so that the connecting plate 23 rotates to a vertical state through the connecting ring 25 and the annular rod 26.

[0051] In the above steps, the crossbar 15 is protected by the interaction between the connecting plate 23 , the protective pad 24 , the movable plate 22 and the spring 28 .

[0052] See also Figure 1-Figure 5 As shown, this embodiment is based on the above embodiment 1 and also includes:

[0053] Place components;

[0054] The placement assembly includes a fixed rod 31, a movable ring 32 and a placement frame 33;

[0055] The fixed rod 31 is fixed to the bottom end of the mounting ring 29, the movable ring 32 is rotatably connected to the lower surface of the fixed rod 31, and the placement rack 33 is fixed to both sides of the movable ring 32;

[0056] The fixed rod 31 is used for connecting and rotating the movable ring 32, the movable ring 32 is used for connecting the placement rack 33, and the placement rack 33 is used for placing the magnetic block 27;

[0057] The bottom end of the fixed rod 31 is fixedly connected to a support rod 34, and the other end of the support rod 34 is fixedly connected to the inner side of the connecting frame 11. The movable ring 32 is provided with an annular groove 35 at the connection with the fixed rod 31;

[0058] The support rod 34 is used to support the fixed rod 31, and the annular groove 35 is used for the rotation of the movable ring 32;

[0059] The preload force adjustment assembly further includes a bearing rod 12, a nut 13, a clamping block 14 and a limiter 16;

[0060] The bearing rod 12 is located inside the connecting frame 11, the nut 13 is sleeved on the surface of the bearing rod 12, the clamping block 14 is clamped on the top of the bearing rod 12, and the limiting member 16 is clamped on one side of the nut 13;

[0061] The cross bar 15 is fixedly connected to the clamping block 14;

[0062] The bearing rod 12 is a vertical rod inside the bearing, the nut 13 is used to limit the bearing, the clamping block 14 is used to limit the bearing rod 12, and the limiting member 16 is used to drive the nut 13 to rotate;

[0063] Working principle:

[0064] After the magnetic block 27 is taken out, the placement rack 33 is rotated by hand so that the movable ring 32 rotates in the annular groove 35. The movable ring 32 drives the placement rack 33 to rotate to the outside. Then, the taken out magnetic block 27 is placed on the placement rack 33 so that the magnetic block 27 and the placement rack 33 are attracted to each other. Thus, the placement rack 33 stores and supports the magnetic block 27, preventing the magnetic block 27 from hanging on both sides of the cross bar 15 when the movable plate 22 is in the vertical state.

[0065] The above steps can improve your functionality.

[0066] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0067] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. Adjustable bearing preload adjustment device, characterized in that: include: A preload adjustment assembly, the preload adjustment assembly comprising a connecting frame (11) and a crossbar (15); The cross bar (15) is fixed on the upper inner side of the connecting frame (11); A protection assembly, comprising a fixed block (21), a movable plate (22), a connecting plate (23), a protection pad (24) and a spring (28); The fixed block (21) is fixed to the upper inner side of the connecting frame (11) and is located on both sides of the cross bar (15). The movable plate (22) is located on the inner side of the fixed block (21). The connecting plate (23) is located on the outer side of the outer end of the movable plate (22). The protective pad (24) is fixed to the outer side of the connecting plate (23). The spring (28) is located on the inner side of the movable plate (22).

2. The adjustable bearing preload adjustment device according to claim 1, characterized in that: The inner side of the connecting plate (23) is fixedly connected to a connecting ring (25), the outer side of the movable plate (22) is fixedly connected to an annular rod (26), and the connecting ring (25) is rotatably connected to the annular rod (26); A movable shaft (211) is movably connected at the connection between the movable plate (22) and the fixed block (21).

3. The adjustable bearing preload adjustment device according to claim 1, characterized in that: The inner side surface of the outer end of the movable plate (22) is snap-connected with a magnetic block (27), the surface of the cross bar (15) is magnetically attracted with a mounting ring (29), and the spring (28) is fixed between the magnetic block (27) and the mounting ring (29).

4. The adjustable bearing preload adjustment device according to claim 1, characterized in that: It also includes placing components; The placement assembly includes a fixed rod (31), a movable ring (32) and a placement frame (33); The fixed rod (31) is fixed to the bottom end of the mounting ring (29), the movable ring (32) is rotatably connected to the lower surface of the fixed rod (31), and the placement frame (33) is fixed to both sides of the movable ring (32).

5. The adjustable bearing preload adjustment device according to claim 4, characterized in that: The bottom end of the fixed rod (31) is fixedly connected to a support rod (34), and the other end of the support rod (34) is fixedly connected to the inner side of the connecting frame (11). The movable ring (32) is provided with an annular groove (35) at the connection with the fixed rod (31).

6. The adjustable bearing preload adjustment device according to claim 1, characterized in that: The preload adjustment assembly further includes a bearing rod (12), a nut (13), a clamping block (14), and a limiting member (16); The bearing rod (12) is located inside the connecting frame (11), the nut (13) is sleeved on the surface of the bearing rod (12), the clamping block (14) is clamped on the upper side of the bearing rod (12), and the limiting member (16) is clamped on one side of the nut (13); The cross bar (15) is fixedly connected to the clamping block (14).

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