Bearing with cage tension adjustment structure

Abstract

This utility model relates to the field of bearing technology and discloses a bearing with a cage tension adjustment structure, including an adjustment assembly comprising a bearing outer ring, an annular groove, and an annular inclined surface. This utility model achieves dynamic adjustment of the cage tension by rotating the adjustment ring to drive the adjustment block and the movable ring axially, utilizing the annular inclined surface of the movable ring to convert the axial force into radial force. This allows for flexible adaptation to various operating conditions such as speed and load, avoiding excessive tightness leading to frictional heat and increased wear, or excessive looseness causing uneven rolling element distribution, vibration, and noise. It solves the problem of existing bearing cages being unable to dynamically adjust tension. Simultaneously, the adjustment tool, consisting of an adjustment hole, adjustment rod, and annular adjustment cap, combined with the directional guiding effect of the limiting block and limiting groove, makes the adjustment operation more convenient and stable, overcoming the shortcomings of traditional cage structures being simple and limited in adjustment, and meeting the needs of diverse working scenarios and complex operating conditions.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a bearing with a cage tension adjustment structure. Background Technology

[0002] Bearings are critical moving components in mechanical systems used to reduce friction, playing a vital role in supporting and positioning moving parts during rotational or linear motion. The design and manufacturing precision of bearings are extremely high; even the slightest deviation can lead to performance degradation or even premature bearing failure. Furthermore, the choice of bearing materials is crucial, as different materials can meet diverse application requirements. The cage, as an important component of the bearing, plays an indispensable role. It ensures that the rolling elements are in the correct position and guarantees their smooth rolling between the inner and outer rings.

[0003] Existing bearing cages are usually fixed in place, making it impossible to dynamically adjust their tightness according to actual operating conditions (such as changes in speed, load, and temperature). For example, when the bearing is running at high speed, an overly tight cage can lead to frictional heat and increased wear, while an overly loose cage can cause uneven distribution of rolling elements, resulting in vibration and noise. Therefore, a bearing with a cage tightness adjustment structure is proposed.

[0004] Traditional bearings typically use cages that are directly installed inside the bearing. This structure is relatively simple and cannot be flexibly adjusted according to actual usage requirements, which has certain limitations and makes it difficult to meet the requirements of diverse working scenarios and complex operating conditions. Therefore, bearings with cage tension adjustment structures are proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a bearing with a cage tension adjustment structure to solve the problems mentioned in the background art. The existing bearing cage adopts a fixed installation method, which cannot dynamically adjust the tension according to actual working conditions such as speed, load, and temperature changes. There are problems such as excessive tightness leading to frictional heat generation and increased wear, and excessive looseness leading to uneven distribution of rolling elements and causing vibration and noise. In addition, the traditional cage structure is simple and cannot flexibly adjust the tension according to actual use needs, which has limitations and makes it difficult to meet the requirements of diverse working scenarios and complex working conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bearing with a cage tension adjustment structure, comprising an adjustment assembly, the adjustment assembly including a bearing outer ring, an annular groove, an adjustment ring, an adjustment slot, an adjustment block, a movable ring, a mounting groove, a cage body, and an annular inclined surface; the upper and lower surfaces of the bearing outer ring are provided with annular grooves, the inner walls of the two annular grooves are threaded with adjustment rings, the inner walls of the two annular grooves are provided with a set of adjustment slots along the circumferential direction on the side where they are close to each other, the inner walls of the two sets of adjustment slots are slidably connected with a set of adjustment blocks, the side where the two adjustment rings are close to each other is respectively fitted to the side where the two sets of adjustment blocks are far apart, the side where the two sets of adjustment blocks are close to each other is fixedly connected with a movable ring, the middle of the inner wall of the bearing outer ring is provided with a mounting groove, the cage body is provided inside the mounting groove, the inner walls of the two movable rings are provided with annular inclined surfaces on the side where they are close to each other, the surfaces of the two annular inclined surfaces are respectively fitted to the top and bottom of the outer wall of the cage body.

[0007] Preferably, the outer walls of the two movable rings are slidably connected to the upper and lower parts of the inner wall of the mounting groove, respectively. Multiple limiting blocks are fixedly connected to the outer walls of the movable rings. Multiple limiting grooves are provided at the top and bottom of the inner wall of the mounting groove. The outer walls of the limiting blocks are slidably connected to the inner walls of the limiting grooves.

[0008] Preferably, a set of adjustment holes is provided on the circumferential direction on the side of each of the two adjustment rings that are far apart.

[0009] Preferably, an adjusting rod is attached to the inner wall of each of the two sets of adjusting holes, and an annular adjusting cap is fixedly connected to the side of each of the two sets of adjusting rods that is far apart from each other.

[0010] Preferably, the outer side wall of the cage body is provided with a plurality of rolling grooves, and the inner side wall of each of the plurality of rolling grooves is rotatably connected to a rolling element, and the outer side wall of the rolling element is rotatably connected to the middle of the inner side wall of the mounting groove.

[0011] Preferably, the cage body described above has an inner bearing ring inside, and a rolling groove is formed in the middle of the outer side wall of the inner bearing ring. The outer side wall of the rolling element is rotatably connected to the middle of the inner side wall of the rolling groove.

[0012] Preferably, one side of the limiting block is fixedly connected to one side of the adjusting block.

[0013] Preferably, the top and bottom of the outer side wall of the bearing inner ring are rotatably connected to the top and bottom of the inner side wall of the bearing outer ring.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] This invention uses a rotating adjusting ring to drive the adjusting block and the movable ring to move axially. The annular inclined surface of the movable ring converts the axial force into radial force, enabling dynamic adjustment of the tightness of the cage body. It can be flexibly adapted to working conditions such as speed and load, avoiding frictional heat and increased wear caused by excessive tightness, or uneven distribution of rolling elements, vibration and noise caused by excessive looseness. It solves the problem that existing bearing cages cannot be dynamically adjusted. At the same time, the adjusting tool composed of adjusting holes, adjusting rods and annular adjusting caps, combined with the directional guiding effect of limiting blocks and limiting grooves, makes the adjustment operation more convenient and stable, overcoming the defects of traditional cages with simple structure and limited adjustment, and meeting the needs of diverse working scenarios and complex working conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the main structure of the adjusting ring and retainer of this utility model;

[0020] Figure 4 This is a schematic diagram of a partial cross-sectional view of the bearing outer ring of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Adjusting component; 11. Bearing outer ring; 12. Annular groove; 13. Adjusting ring; 14. Adjusting groove; 15. Adjusting block; 16. Moving ring; 17. Mounting groove; 18. Cage body; 19. Annular inclined surface; 20. Limiting block; 21. Limiting groove; 22. Adjusting hole; 23. Adjusting rod; 24. Annular adjusting cap; 25. Rolling groove; 26. Rolling element; 27. Bearing inner ring; 28. Rolling groove. Detailed Implementation

[0022] 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.

[0023] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0024] Example

[0025] In the existing technology, the cage of the existing bearing adopts a fixed installation method, which cannot dynamically adjust the tightness according to the actual working conditions such as speed, load, and temperature changes. There are problems such as excessive tightness leading to frictional heat generation and increased wear, and excessive looseness leading to uneven distribution of rolling elements and causing vibration and noise. In addition, the traditional cage structure is simple and cannot flexibly adjust the tightness according to actual use needs, which has limitations and makes it difficult to meet the requirements of diverse working scenarios and complex working conditions.

[0026] Please see Figures 1-4This utility model provides a technical solution: a bearing with a cage tension adjustment structure, including an adjustment assembly 1. The adjustment assembly 1 includes a bearing outer ring 11, an annular groove 12, an adjustment ring 13, an adjustment groove 14, an adjustment block 15, a movable ring 16, a mounting groove 17, a cage body 18, and an annular inclined surface 19. Annular grooves 12 are provided on both the upper and lower surfaces of the bearing outer ring 11. Adjustment rings 13 are threadedly connected to the inner walls of both annular grooves 12. A set of adjustment grooves 14 is provided along the circumferential direction on the adjacent side of the inner walls of the two annular grooves 12. An adjustment block 15 is slidably connected to the inner walls of both sets of adjustment grooves 14. Two adjustment rings... The sides of the two sets of adjusting blocks 15 that are close to each other are respectively attached to the sides of the two sets of adjusting blocks 15 that are far apart. The sides of the two sets of adjusting blocks 15 that are close to each other are fixedly connected to the movable rings 16. The inner sidewall of the outer ring 11 of the bearing has a mounting groove 17 in the middle. The inside of the mounting groove 17 is provided with the cage body 18. The inner sidewall of the two movable rings 16 that are close to each other is provided with annular inclined surfaces 19. The surfaces of the two annular inclined surfaces 19 are respectively attached to the top and bottom of the outer sidewall of the cage body 18. By rotating the adjusting ring 13, the adjusting blocks 15 and movable rings 16 are pushed to move, and the cage body 18 is squeezed by the annular inclined surfaces 19 on the movable rings 16.

[0027] In one implementation, specifically: the outer walls of the two movable rings 16 are slidably connected to the upper and lower parts of the inner wall of the mounting groove 17, respectively. Multiple limiting blocks 20 are fixedly connected to the outer walls of the movable rings 16. Multiple limiting grooves 21 are provided at the top and bottom of the inner wall of the mounting groove 17. The outer walls of the limiting blocks 20 are slidably connected to the inner walls of the limiting grooves 21. By limiting the limiting blocks 20 through the limiting grooves 21, the stability of the movement of the movable rings 16 is increased, and the movable rings 16 are prevented from rotating.

[0028] In one implementation, specifically: a set of adjustment holes 22 are provided on the circumferential direction on the side of the two adjustment rings 13 that are far apart, so that the adjustment rings 13 can be rotated by tools through the adjustment holes 22.

[0029] In one implementation, specifically: an adjusting rod 23 is attached to the inner sidewall of each of the two sets of adjusting holes 22, and an annular adjusting cap 24 is fixedly connected to the side of each of the two sets of adjusting rods 23 that are far apart. The annular adjusting cap 24 and the adjusting rod 23 form an adjusting tool, and the adjusting rod 23 is inserted into the adjusting hole 22, so as to facilitate the adjustment by rotating the adjusting ring 13.

[0030] In one implementation, specifically: the outer wall of the cage body 18 is provided with multiple rolling grooves 25, and the inner wall of each of the multiple rolling grooves 25 is rotatably connected to a rolling element 26. The outer wall of the rolling element 26 is rotatably connected to the middle of the inner wall of the mounting groove 17. By rotating the rolling element 26 along the inner wall of the mounting groove 17, low-friction rotation is achieved, thereby extending the service life of the bearing.

[0031] In one implementation, specifically: a bearing inner ring 27 is provided inside the cage body 18, and a rolling groove 28 is provided in the middle of the outer side wall of the bearing inner ring 27. The outer side wall of the rolling element 26 is rotatably connected to the middle of the inner side wall of the rolling groove 28. By rotating the rolling element 26 along the inner wall of the rolling groove 28, low-friction rotation is achieved, thereby extending the service life of the bearing.

[0032] In one implementation, specifically: one side of the limiting block 20 is fixedly connected to one side of the adjusting block 15, thereby limiting the adjusting block 15 and increasing the stability of the movement of the adjusting block 15.

[0033] In one implementation, specifically: the top and bottom of the outer sidewall of the inner ring 27 of the bearing are rotatably connected to the top and bottom of the inner sidewall of the outer ring 11 of the bearing. Through the rotatable connection between the inner ring 27 of the bearing and the outer ring 11 of the bearing, the inner ring 27 of the bearing can rotate with the external rotating component.

[0034] In terms of working principle or structural principle, after the bearing is properly assembled, the cage body 18 is located in the mounting groove 17 of the bearing outer ring 11. The rolling elements 26 installed inside it are respectively in contact with the middle of the inner side wall of the mounting groove 17 and the rolling groove 28 of the outer side wall of the bearing inner ring 27, forming a stable rolling support structure. At this time, the movable ring 16 is slightly in contact with the top and bottom of the outer side wall of the cage body 18 through the annular inclined part 19, and the cage body 18 is in an initial tightness state, meeting the basic working requirements.

[0035] When it is necessary to adjust the tightness of the cage body 18 according to the working conditions (such as speed and load changes), the adjusting rod 23 on the annular adjusting cap 24 is inserted into the adjusting hole 22 on the adjusting ring 13. By rotating the annular adjusting cap 24, the adjusting ring 13 is driven to rotate along the annular groove 12 of the outer ring 11 of the bearing (the adjusting ring 13 and the annular groove 12 are connected by threads, and axial displacement is generated when rotating).

[0036] If the cage needs to be tightened, rotate the annular adjusting cap 24 in the forward direction. The adjusting ring 13 moves axially along the annular groove 12 toward the adjusting block 15. Its end face pushes the adjusting block 15 to slide along the adjusting groove 14 (the adjusting groove 14 inside the annular groove 12 restricts the movement direction of the adjusting block 15) toward the cage body 18.

[0037] If it is necessary to loosen the main body 18 of the retainer, rotate the annular adjusting cap 24 in the opposite direction. The adjusting ring 13 moves axially along the annular groove 12 away from the adjusting block 15, thereby releasing the thrust on the adjusting block 15.

[0038] Adjusting block 15 is fixedly connected to movable ring 16 and moves synchronously with adjusting block 15; at the same time, limiting block 20 on the outer side of movable ring 16 slides along limiting groove 21 on the inner side of mounting groove 17, ensuring that movable ring 16 moves smoothly only axially (without circumferential rotation), thus ensuring adjustment stability; the annular inclined surface 19 on the inner side of movable ring 16 is tightly fitted with the top and bottom of the outer side wall of cage body 18, and their linkage determines the tightness of the cage:

[0039] During tightening, the movable ring 16 moves toward the cage body 18, and the annular inclined surface 19 converts the axial thrust into radial extrusion force through inclined contact, squeezing the cage body 18 inward, making its fit with the rolling element 26 tighter and improving the overall tightness (reducing the swaying of the rolling element 26 and adapting to high load conditions).

[0040] When loosening, the movable ring 16 returns to its original position away from the cage body 18 along with the adjusting block 15 (affected by the cage reaction force or gravity), the radial extrusion force of the annular inclined surface 19 decreases, the fit clearance between the cage body 18 and the rolling element 26 increases, and the tightness decreases (reducing friction and adapting to high-speed operating conditions).

[0041] After adjustment, when the inner ring 27 of the bearing rotates with the external rotating component, it drives the rolling element 26 to rotate in the rolling groove 25 of the cage body 18. At the same time, the rolling element 26 rolls along the inner side wall of the mounting groove 17 of the outer ring 11 of the bearing and the rolling groove 28 of the inner ring 27 of the bearing, achieving low-friction rotation. At this time, the adjusted cage body 18 ensures that the rolling element 26 is evenly distributed and without deviation through a stable tightness, avoiding vibration or excessive wear, and adapting to the working conditions after adjustment.

[0042] In summary, this utility model achieves dynamic adjustment of the tightness of the cage body 18 through the threaded transmission of the adjusting ring 13, the directional movement of the adjusting block 15 and the movable ring 16, and the radial force conversion of the annular inclined surface 19, thus taking into account both the operational stability and working condition adaptability of the bearing.

[0043] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A bearing having a cage tension adjustment structure, characterized in that, The assembly includes an adjustment component (1), which comprises a bearing outer ring (11), an annular groove (12), an adjustment ring (13), an adjustment groove (14), an adjustment block (15), a movable ring (16), a mounting groove (17), a cage body (18), and an annular inclined surface (19). The upper and lower surfaces of the bearing outer ring (11) are provided with annular grooves (12). The inner walls of both annular grooves (12) are threaded with adjustment rings (13). On the side of the inner walls of the two annular grooves (12) that are close to each other, a set of adjustment grooves (14) is provided along the circumferential direction. The inner walls of both sets of adjustment grooves (14) are... A set of adjusting blocks (15) is slidably connected. The two adjusting rings (13) are respectively attached to the two sets of adjusting blocks (15) on opposite sides. The two sets of adjusting blocks (15) are fixedly connected to movable rings (16) on opposite sides. The inner wall of the bearing outer ring (11) is provided with a mounting groove (17). The mounting groove (17) is provided with a retainer body (18). The inner walls of the two movable rings (16) are provided with annular inclined surfaces (19) on opposite sides. The surfaces of the two annular inclined surfaces (19) are respectively attached to the top and bottom of the outer wall of the retainer body (18).

2. The bearing with a cage tension adjustment structure according to claim 1, characterized in that: The outer walls of the two movable rings (16) are slidably connected to the upper and lower parts of the inner wall of the mounting groove (17), respectively. Multiple limiting blocks (20) are fixedly connected to the outer walls of the movable rings (16). Multiple limiting grooves (21) are provided at the top and bottom of the inner wall of the mounting groove (17). The outer walls of the limiting blocks (20) are slidably connected to the inner walls of the limiting grooves (21).

3. The bearing with a cage tension adjustment structure according to claim 1, characterized in that: Each of the two adjusting rings (13) has a set of adjusting holes (22) on the circumferential direction on the side that is far apart from each other.

4. The bearing with a cage tension adjustment structure according to claim 3, characterized in that: An adjusting rod (23) is attached to the inner wall of each of the two sets of adjusting holes (22), and an annular adjusting cap (24) is fixedly connected to the side of each of the two sets of adjusting rods (23) that is far apart from each other.

5. The bearing with a cage tension adjustment structure according to claim 1, characterized in that: The outer side wall of the cage body (18) is provided with a plurality of rolling grooves (25), and the inner side wall of each of the plurality of rolling grooves (25) is rotatably connected to a rolling element (26), and the outer side wall of the rolling element (26) is rotatably connected to the middle of the inner side wall of the mounting groove (17).

6. The bearing with a cage tension adjustment structure according to claim 5, characterized in that: The cage body (18) is provided with a bearing inner ring (27) inside. A rolling groove (28) is provided in the middle of the outer side wall of the bearing inner ring (27). The outer side wall of the rolling element (26) is rotatably connected to the middle of the inner side wall of the rolling groove (28).

7. The bearing with a cage tension adjustment structure according to claim 2, characterized in that: One side of the limiting block (20) is fixedly connected to one side of the adjusting block (15).

8. The bearing with a cage tension adjustment structure according to claim 6, characterized in that: The top and bottom of the outer sidewall of the inner ring (27) of the bearing are rotatably connected to the top and bottom of the inner sidewall of the outer ring (11) of the bearing.

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