Low-noise bearing retainer

Abstract

The utility model relates to the technical field of bearing retainers, and discloses a low-noise bearing retainer which comprises an upper holding frame, a noise reduction mechanism used for reducing noise is arranged in the upper holding frame, a lower holding frame is arranged at the bottom end of the upper holding frame, and an assembling mechanism used for assembling is arranged outside the upper holding frame. The noise reduction mechanism comprises a push plate, the exterior of the push plate is slidably connected to the interior of the upper holding frame, a buffer pad is fixedly connected to the front end of the push plate, a limiting block is fixedly connected to the end, away from the push plate, of the buffer pad, and balls are slidably connected to the exterior of the limiting block. According to the utility model, the limiting block is used for accurately limiting and restraining the ball and efficiently buffering and damping the ball by virtue of the elastic buffering characteristic of the buffering pad, so that the noise generated by collision between the ball and the retainer during high-speed rotation can be effectively reduced, and the buffering force of the buffering pad can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of bearing cage technology, and in particular to a low-noise bearing cage. Background Technology

[0002] As industrial production demands ever higher precision, efficiency, and reliability from rotating machinery, the simple shaft and hole fits of the early days are no longer sufficient to meet the requirements. Rolling bearings, as efficient rotating support components, have emerged. In the structural system of rolling bearings, in order to prevent the rolling elements from colliding and rubbing against each other during high-speed operation and to ensure their uniform distribution, thereby improving the overall performance and service life of the bearing, the bearing cage, a key component, has emerged in this context of technological evolution.

[0003] The bearing cage mainly consists of pockets, crossbeams, and guide surfaces. The working principle of the bearing cage is to prevent the rolling elements from colliding and rubbing against each other during operation by equally distributing them on the circumference of the raceway, while guiding the rolling elements and keeping them in the bearing.

[0004] Currently, some bearing cages exhibit a significant problem during actual use: excessive noise. This noise not only interferes with the surrounding working environment and has an adverse auditory impact on operators, but also directly leads to equipment instability in some fields with stringent noise control requirements, such as precision manufacturing, medical equipment, and acoustic research, affecting product quality and the accuracy of experimental results. Therefore, a low-noise bearing cage is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a low-noise bearing cage, which aims to improve the problem of excessive noise in bearings during use in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A low-noise bearing cage includes an upper support, an internal noise reduction mechanism for reducing noise, a lower support at the bottom of the upper support, and an external assembly mechanism for assembly.

[0008] The noise reduction mechanism includes a push plate, the outside of which is slidably connected to the inside of the upper support frame. A buffer pad is fixedly connected to the front end of the push plate. A limit block is fixedly connected to the end of the buffer pad away from the push plate. A ball is slidably connected to the outside of the limit block. Two fixing blocks are fixedly connected to the end of the push plate away from the buffer pad. Adjustment components for adjusting friction are provided on the outside of the two fixing blocks.

[0009] Furthermore, the limiting block is used to directly contact the ball to limit its movement, while the buffer pad cushions the ball as it rolls, greatly reducing the hard impact between the ball and the cage, and thus significantly reducing the noise caused by the collision. This provides a strong guarantee mechanism for achieving low-noise operation of the bearing cage.

[0010] As a further description of the above technical solution:

[0011] The adjustment assembly includes two guide blocks. The near ends of the two guide blocks are fixedly connected to the interior of the upper support and the lower support, respectively. The far ends of the two guide blocks are fixedly connected to sliding rings. The exteriors of the two sliding rings are slidably connected to the interiors of the upper support and the lower support, respectively. The interiors of the two sliding rings are rotatably connected to a fixing screw.

[0012] Furthermore, the adjustment component plays a crucial role in the overall bearing cage structure. It mainly consists of two ingeniously designed guide blocks that are symmetrically distributed in space. The adjacent ends of the two guide blocks are fixedly and precisely connected to specific positions inside the upper and lower cages in a stable manner. This tight connection provides a solid and reliable foundation support structure for subsequent adjustment operations.

[0013] As a further description of the above technical solution:

[0014] The two fixing screws are threaded to the interior of the upper support and the lower support respectively, and the upper support and the lower support are provided with sliding grooves on their exteriors;

[0015] Furthermore, the position of the sliding ring can be adjusted in a controllable manner through the threaded connection, ensuring its stability, and the sliding ring slides inside the groove.

[0016] As a further description of the above technical solution:

[0017] The limiting block is externally slidably connected to the inside of the lower support frame, and the buffer pad is externally slidably connected to the inside of the lower support frame;

[0018] Furthermore, the sliding of the limit block and buffer pad on the outside of the lower holder ensures the integrity of its internal structure when the ball bearings are assembled later.

[0019] As a further description of the above technical solution:

[0020] The ball bearing is externally rotatably connected to the interior of the upper and lower supports, and the push plate is externally slidably connected to the interior of the lower support.

[0021] Furthermore, by allowing the balls and push plate to slide inside the lower holder, the integrity of the internal structure is ensured during subsequent assembly of the balls.

[0022] As a further description of the above technical solution:

[0023] The assembly mechanism includes a sliding block, the outside of which is slidably connected to the inside of the upper support frame, the inside of which is rotatably connected to a fixing screw, and the outside of which is fixedly connected to a connecting rod.

[0024] Furthermore, the connecting rod is used to connect the upper holding plate and the lower holding plate. The sliding of the sliding block ensures that the upper holding plate and the lower holding plate can be opened and closed vertically.

[0025] As a further description of the above technical solution:

[0026] The upper support has a sliding groove on its outer side, and the connecting rod is slidably connected to the inside of the sliding groove.

[0027] Furthermore, the sliding groove guides the connecting rod, ensuring the consistency of the positions between the upper and lower holding plates.

[0028] As a further description of the above technical solution:

[0029] The connecting rod is externally fixedly connected to the interior of the lower support frame, and the external of the fixing screw is threadedly connected to the interior of the upper support frame.

[0030] Furthermore, the rotation of the fixing screw facilitates the fixing and loosening of the upper and lower holding plates.

[0031] This utility model has the following beneficial effects:

[0032] 1. In this utility model, the limiting block utilizes the elastic buffering characteristics of the buffer pad to precisely limit and constrain the balls and efficiently buffer and dampen vibrations. Through this ingenious structural design and collaborative operation mechanism, the noise generated by the collision between the balls and the cage during high-speed rotation can be effectively reduced, significantly improving the smoothness and quietness of bearing operation, creating favorable conditions for the stable and efficient operation of the equipment. When the sliding ring slides, the guide block squeezes the fixed block, thereby adjusting the buffering force of the buffer pad. Under light load conditions, appropriately loosening the buffering force can reduce the friction between the balls and the buffer pad, making the bearing run more smoothly and reducing energy consumption and noise. Under heavy load conditions, tightening the buffering force can enhance the load-bearing capacity, ensure the stable movement of the balls under greater forces, prevent excessive displacement from causing collision noise, and ensure that the bearing maintains good performance under different operating conditions.

[0033] 2. In this utility model, the sliding block slides inside the sliding groove, which facilitates the maintenance and replacement of the balls. The setting of the fixing screw effectively completes the stable connection between the upper and lower supports, ensuring the integrity and stability of the entire bearing cage structure. This ensures that the bearing can continuously and reliably perform its supporting and operating functions during subsequent operation, greatly improving the efficiency and convenience of bearing maintenance, reducing maintenance costs and difficulties, extending the service life of the bearing, and providing a strong guarantee for the stable operation of related equipment. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of a low-noise bearing cage proposed in this utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the balls in a low-noise bearing cage proposed in this utility model.

[0036] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0038] Legend:

[0039] 1. Upper support; 2. Lower support; 3. Ball bearing; 4. Limiting block; 5. Buffer pad; 6. Push plate; 7. Fixing block; 8. Guide block; 9. Sliding ring; 10. Fixing screw one; 11. Sliding groove; 12. Sliding block; 13. Connecting rod; 14. Fixing screw two; 15. Sliding groove. Detailed Implementation

[0040] 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.

[0041] Reference Figures 1 to 3This utility model provides an embodiment of a low-noise bearing cage, which features a unique structural design and numerous practical functions, aiming to effectively reduce noise generated during bearing operation and improve the overall performance of the bearing. It mainly includes an upper support 1, inside which a noise-reducing mechanism is carefully designed to reduce noise, playing a crucial role in lowering bearing operating noise. A lower support 2 is located at the bottom of the upper support 1, and the two work together to provide support for the stable operation of the bearing. Simultaneously, an assembly mechanism is provided on the outside of the upper support 1 for assembly, which greatly facilitates the assembly process of the entire bearing cage.

[0042] The noise reduction mechanism includes a push plate 6, which is externally slidably connected to the inside of the upper support 1. This sliding connection allows the push plate 6 to flexibly move within the upper support 1, laying the foundation for subsequent noise reduction. A buffer pad 5 is fixedly connected to the front end of the push plate 6. A limit block 4 is fixedly connected to the end of the buffer pad 5 away from the push plate 6. A ball bearing 3 is slidably connected to the outside of the limit block 4. The buffer pad 5 is made of a material with good elasticity and cushioning properties, effectively absorbing and dispersing the impact force from the ball bearing 3, thereby reducing noise generation. The limit block 4 precisely limits the ball bearing 3, ensuring stable rolling within a specified range. Simultaneously, the buffer pad 5's cushioning characteristics reduce collisions between the ball bearing 3 and surrounding structures during its movement. Two fixing blocks 7 are fixedly connected to the end of the push plate 6 away from the buffer pad 5. Adjustment components for adjusting friction are provided on the outside of the two fixing blocks 7. These adjustment components can flexibly adjust the tightness of the buffer structure according to actual working conditions, further optimizing the bearing's operating state.

[0043] The adjustment assembly includes two guide blocks 8. The proximal ends of the two guide blocks 8 are fixedly connected to the interiors of the upper support 1 and the lower support 2, respectively. The two guide blocks 8 are securely connected to the upper support 1 and the lower support 2, providing reliable support points for subsequent adjustment. Sliding rings 9 are fixedly connected to the distal ends of the two guide blocks 8. The exteriors of the two sliding rings 9 are slidably connected to the interiors of the upper support 1 and the lower support 2, allowing the sliding rings 9 to move smoothly within the upper support 1 and the lower support 2, thereby driving the related structures to achieve the adjustment function. Fixing screws 10 are rotatably connected to the interiors of the two sliding rings 9. The exteriors of the two fixing screws 10 are threadedly connected to the interiors of the upper support 1 and the lower support 2, respectively. By rotating the fixing screws 10, the sliding position of the sliding rings 9 can be precisely controlled, thereby achieving effective adjustment of the tightness of the entire buffer structure. The upper support frame 1 and the lower support frame 2 are provided with sliding grooves 11 on their exteriors. The external limit block 4 is slidably connected to the interior of the lower support frame 2. The external buffer pad 5 is slidably connected to the interior of the lower support frame 2. The external ball bearing 3 is rotatably connected to the interior of the upper support frame 1 and the lower support frame 2. The external push plate 6 is slidably connected to the interior of the lower support frame 2. This connection method between the components ensures that the entire noise reduction mechanism can work together and play an effective role.

[0044] Reference Figure 1 , Figure 2 and Figure 4 The assembly mechanism includes a sliding block 12, which is externally slidably connected to the interior of the upper support frame 1. The sliding block 12 can slide along a specific track inside the upper support frame 1 to change the relative position between the upper support frame 1 and the lower support frame 2. A fixing screw 14 is rotatably connected inside the sliding block 12, allowing for easy locking or unlocking of the sliding block 12's position by rotating the fixing screw 14. A connecting rod 13 is fixedly connected externally to the sliding block 12. A sliding groove 15 is formed on the exterior of the upper support frame 1, and the connecting rod 13 is externally slidably connected to the interior of the sliding groove 15. The connecting rod 13 is externally fixedly connected to the interior of the lower support frame 2. This structural design allows for flexible adjustment of the distance between the upper support frame 1 and the lower support frame 2 through the cooperation of the sliding block 12, the connecting rod 13, and the sliding groove 15. The outer part of the fixing screw 14 is threaded to the inner part of the upper support 1. With the help of the threaded engagement between the fixing screw 14 and the upper support 1, the relative positions of the upper support 1 and the lower support 2 can be firmly fixed, ensuring the stability of the entire bearing cage structure.

[0045] Working principle: During cage assembly, the fixing screw 14 can be rotated to move it away from the interior of the upper holder 1. This allows the sliding block 12 to slide within the sliding groove 15, thus changing the distance between the upper holder 1 and the lower holder 2. This facilitates the assembly of the ball bearings 3 between the upper holder 1 and the lower holder 2. After assembly, the sliding block 12 is returned to its original position, and the fixing screw 14 is rotated in the opposite direction to secure the upper holder 1 and the lower holder 2. The quick-connect mechanism between the ball bearings 3 and the cage facilitates maintenance and production, thereby improving maintenance and production efficiency.

[0046] Under different working conditions, the load on the bearing varies greatly. Under light load, appropriately loosening the tightness of the buffer structure can reduce the friction between the ball 3 and the slider, making the bearing run more smoothly and reducing unnecessary energy loss and noise. By rotating the fixing screw 10, the sliding ring 9 slides inside the slide groove 11, which causes the guide block 8 to squeeze and loosen the fixing block 7. This causes the push plate 6 to drive the buffer pad 5, and the buffer pad 5 to drive the limiting block 4 to slide between the upper holder 1 and the lower holder 2. When the ball 3 rolls, the limiting block 4 limits and buffers the ball 3 through the buffer pad 5, reducing the noise of the ball 3 colliding with the cage during rotation. By squeezing the fixing block 7 with the guide block 8, the tightness of the buffer pad 5 can be adjusted, thereby adjusting the friction of the ball 3. Tightening the tightness can enhance the load-bearing capacity of the buffer structure, ensuring that the ball 3 can maintain a stable movement under large forces and preventing excessive displacement of the ball 3 and the generation of collision noise.

[0047] 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 low-noise bearing cage, comprising an upper holder (1), characterized in that: The upper support frame (1) is provided with a noise reduction mechanism for reducing noise inside, the lower support frame (2) is provided at the bottom of the upper support frame (1), and the upper support frame (1) is provided with an assembly mechanism for assembly outside. The noise reduction mechanism includes a push plate (6), which is externally slidably connected to the inside of the upper support frame (1). A buffer pad (5) is fixedly connected to the front end of the push plate (6). A limit block (4) is fixedly connected to the end of the buffer pad (5) away from the push plate (6). A ball bearing (3) is slidably connected to the outside of the limit block (4). Two fixing blocks (7) are fixedly connected to the end of the push plate (6) away from the buffer pad (5). Adjustment components for adjusting friction are provided on the outside of the two fixing blocks (7).

2. The low-noise bearing cage according to claim 1, characterized in that: The adjustment assembly includes two guide blocks (8). The near ends of the two guide blocks (8) are fixedly connected to the interior of the upper support (1) and the lower support (2), respectively. The far ends of the two guide blocks (8) are fixedly connected to sliding rings (9). The exterior of the two sliding rings (9) are slidably connected to the interior of the upper support (1) and the lower support (2), respectively. The interior of the two sliding rings (9) is rotatably connected to a fixing screw (10).

3. A low-noise bearing cage according to claim 2, characterized in that: The two fixing screws (10) are threaded to the interior of the upper support (1) and the lower support (2), respectively. The upper support (1) and the lower support (2) are provided with sliding grooves (11).

4. A low-noise bearing cage according to claim 1, characterized in that: The limiting block (4) is externally slidably connected to the inside of the lower support (2), and the buffer pad (5) is externally slidably connected to the inside of the lower support (2).

5. A low-noise bearing cage according to claim 1, characterized in that: The ball bearing (3) is externally rotatably connected to the interior of the upper support (1) and the lower support (2), and the push plate (6) is externally slidably connected to the interior of the lower support (2).

6. A low-noise bearing cage according to claim 1, characterized in that: The assembly mechanism includes a sliding block (12), the outside of which is slidably connected to the inside of the upper support (1), the inside of which is rotatably connected to a fixing screw (14), and the outside of which is fixedly connected to a connecting rod (13).

7. A low-noise bearing cage according to claim 6, characterized in that: The upper support (1) has a sliding groove (15) on its outside, and the connecting rod (13) is slidably connected to the inside of the sliding groove (15).

8. A low-noise bearing cage according to claim 6, characterized in that: The external of the connecting rod (13) is fixedly connected to the inside of the lower support (2), and the external of the fixing screw (14) is threadedly connected to the inside of the upper support (1).

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