Self-locking cage assembly
Through the design of the self-locking cage assembly, the use of a cylindrical frame and an elastic limiter solves the problems of radial displacement and axial load of the roller, realizes the stable limitation and movement of the roller, and is suitable for brake locks.
Patent Information
- Application Number
- CN202423254082.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing cage cannot meet the requirements of the roller in radial displacement and bearing axial load, especially in the brake lock, it is impossible to realize the radial displacement and axial linear motion of the roller relative to the cage.
A self-locking cage assembly is designed, which adopts a cylindrical frame body and elastic limiters. By setting upper and lower structures in the pocket hole, combined with arc design and elastic limiters, radial displacement and axial limitation of the roller are achieved to ensure that the roller does not fall out during operation.
It realizes radial displacement and axial linear motion of the roller, enhances the strength of the cage, and is suitable for use in brake locks to provide braking and self-locking effects.
Smart Images
Figure CN223411271U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bearing retainers, in particular to a self-locking retainer assembly. Background Art
[0002] Bearings are important components used for rotating support of mechanical bodies. Bearings usually include an outer ring, an inner ring and several rollers. The outer ring and the inner ring form a raceway for accommodating the rollers. In order to space and guide the rollers, a cage is also provided in the bearing. The cages in the prior art are usually nylon cages and wave-type cages. The cage and the steel balls make circular motion. The cage itself cannot withstand large axial and radial loads. The cage and the steel balls have the same center diameter and the steel balls cannot be radially displaced relative to the cage. However, with the development of bearing uses, bearings have also evolved into many types in order to adapt to different working conditions. For example, bearings used in automobile brake locks, the rollers therein need to be displaced in the radial direction relative to the cage, and can cooperate with the rollers to make circular motion. They must also be able to withstand a certain axial force and make a certain axial linear motion during operation. Therefore, the cage also needs to be improved. Utility Model Content
[0003] In view of the deficiencies of the prior art, the present invention provides a self-locking cage assembly which can allow radial displacement of rollers, has higher strength, and can perform axial linear motion during operation.
[0004] To achieve the above-mentioned purpose, the utility model provides a self-locking retainer assembly, including a frame body arranged in a cylindrical shape and an elastic limiter, the frame body is provided with a plurality of pockets for accommodating balls, and the plurality of pockets are circumferentially distributed and arranged in two rows axially at intervals, the pockets include an upper part and a lower part, the upper part extends to the outer diameter of the frame body and is arranged in a cylindrical shape corresponding to the diameter of the roller, an upper opening connected to the upper part is provided at the outer diameter of the frame body, the lower part is arranged in an arc shape that fits the roller, and a lower opening connected to the lower part is provided at the inner diameter of the frame body, and the elastic limiter is provided at the outer diameter of the frame body and can limit the roller.
[0005] The advantages of adopting the above technical solution are: by setting the upper and lower parts in the pocket of the frame, the roller is limited by the arc design of the lower part that fits the roller, and a lower opening is set to allow the roller to cooperate with the shaft, and the upper part is set to be cylindrical corresponding to the roller diameter and then connected to the upper opening, so that the roller can be radially displaced, so that this type of bearing can be assembled on the core shaft and tapered ring, used in the brake lock, to achieve the effect of braking and self-locking, and finally an elastic limiter is set at the outer diameter of the frame, which can limit the radial amplitude of the roller, ensuring that the roller will not fall out of the retaining frame pocket and can be reset after displacement.
[0006] The utility model can be further configured as follows: the elastic limiting member is an annular retaining spring, and the elastic limiting member is sleeved on the outer diameter of the frame.
[0007] Through further configuration, an annular retaining spring is provided as the elastic limiter, and by sleeved on the outer diameter of the frame, the elastic limiter can pass through the upper opening of a single row of pockets to limit the rollers in that row.
[0008] The utility model can be further configured as follows: an annular groove is provided on the frame body, the annular groove is provided through the upper opening, and the position where the annular groove passes through the upper opening is provided at an edge close to the axial direction of the upper opening, and the elastic limiting member is sleeved on the annular groove.
[0009] Through further settings, a ring groove is provided on the frame body, and the ring groove is allowed to pass through the upper opening, so that the elastic part can be fitted into the ring groove for easy installation, and the position is close to the axial edge of the upper opening, avoiding the high point of the radial displacement of the ball and forming a limit with the edge. While achieving the limiting effect, the ring groove can also be made deeper to prevent the elastic limit part from falling out under impact.
[0010] The present invention can be further configured as follows: the cross section of the annular groove is configured in a V-shape.
[0011] By further setting the cross section of the annular groove into a V-shape, the shape of the annular groove can be used to guide the elastic limiter so that it can always slide back to the bottom of the annular groove after deformation and displacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model after the ball bearing is installed;
[0013] Figure 2 This is a schematic diagram of the axial structure of the embodiment of the utility model after the ball is installed;
[0014] Figure 3 For the embodiment of the utility model Figure 2 Cross-sectional view at AA in the middle;
[0015] Figure 4 This is a schematic diagram of the cooperation between the elastic limiting member and the annular groove in the embodiment of the present utility model;
[0016] Among them: frame 1; pocket hole 11; upper part 111; lower part 112; upper opening 12; lower opening 13; annular groove 14; elastic limiter 2; roller 3. DETAILED DESCRIPTION
[0017] The embodiment of the self-locking retainer assembly of the utility model is as follows: Figure 1-4As shown: it includes a cylindrical frame 1 and an elastic limit member 2, the frame 1 is provided with a plurality of pockets 11 for accommodating the balls 3, and the plurality of pockets 11 are distributed circumferentially and arranged in two rows axially at intervals, the pockets 11 include an upper part 111 and a lower part 112, the upper part 111 extends to the outer diameter of the frame 1 and is cylindrical corresponding to the diameter of the roller 3, an upper opening 12 connecting to the upper part 111 is provided at the outer diameter of the frame 1, the lower part 112 is arranged in an arc shape that fits the roller 3, and a lower opening 13 connecting to the lower part is provided at the inner diameter of the frame 1, and the elastic limit member 2 is arranged at the outer diameter of the frame 1 and can limit the roller 3.
[0018] The elastic limiting member 2 is an annular retaining spring, and the elastic limiting member 2 is sleeved on the outer diameter of the frame 1 .
[0019] The frame body 1 is provided with an annular groove 14 , which passes through the upper opening 12 and is located near the axial edge of the upper opening 12 . The elastic limiting member 2 is sleeved on the annular groove 14 .
[0020] The cross section of the annular groove 14 is V-shaped.
[0021] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.
Claims
1. A self-locking retainer assembly, characterized in that: It includes a cylindrical frame and an elastic limiter, the frame is provided with a plurality of pockets for accommodating balls, and the pockets are circumferentially distributed and arranged in two rows axially at intervals, the pockets include an upper part and a lower part, the upper part extends to the outer diameter of the frame and is cylindrical corresponding to the diameter of the roller, an upper opening connected to the upper part is provided at the outer diameter of the frame, the lower part is arranged in an arc shape that fits the roller, and a lower opening connected to the lower part is provided at the inner diameter of the frame, and the elastic limiter is provided at the outer diameter of the frame and can limit the roller.
2. The self-locking retainer assembly according to claim 1, characterized in that: The elastic limiting member is an annular retaining spring, and the elastic limiting member is sleeved on the outer diameter of the frame.
3. The self-locking retainer assembly according to claim 2, wherein: The frame body is provided with an annular groove, which passes through the upper opening. The position where the annular groove passes through the upper opening is arranged at an edge close to the axial direction of the upper opening, and the elastic limiting member is sleeved on the annular groove.
4. The self-locking retainer assembly according to claim 3, characterized in that: The cross section of the annular groove is V-shaped.