Rolling bearing cage
By designing spaced-mounted pocket slots and isolation columns, bosses and smooth curved surface connections in rolling bearing cages, as well as over-the-rail slots on the equidiment line of the isolation column height direction and four corner edges, the high-speed bearings are solved. The problem of the cage withstands huge dynamic loads has achieved structural stability and strength improvement, extended service life and reduced costs.
Patent Information
- Application Number
- CN202421073445.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In high-speed rotating rolling bearings, the dynamic load borne by the bearing cage is huge, resulting in an increase in equivalent stress and affecting its service life.
A rolling bearing cage is designed, using spaced pocket slots and isolation columns. The outer end face of the isolation column is wider than the inner end face. The lock point is placed outside the cage through the boss structure, and a boss is installed on the isolation column. Connect with a smooth curved surface to increase the contact area, and at the same time, set up a boss on the equal division line of the height direction of the isolation column to increase structural stability, and set up an over-the-rail groove at the edge of the four corners to increase the contact area.
Effectively reduce equivalent stress, extend the service life of the structure, adapt to rolling elements of different specifications, improve structural stability and strength, reduce material use and processing costs, and achieve simplicity and efficiency of the structure.
Smart Images
Figure CN222163255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing parts, in particular to a rolling bearing retainer. Background Art
[0002] The cage of a rolling bearing, also known as a bearing retainer, is a key component in the bearing. Its main functions include: uniform distribution of rolling elements: the cage makes the rolling elements evenly distributed between the inner and outer rings, which can ensure uniform load distribution, reduce wear, and improve the efficiency and service life of the bearing; guiding rolling elements: during the operation of the bearing, the cage guides the rolling elements to roll along the correct path, reducing mutual collision and friction between the rolling elements; preventing the rolling elements from falling off: in a separable bearing, the cage can combine the rolling elements and a ring together to prevent the rolling elements from falling off during high-speed operation; lubrication: the cage helps to keep the rolling elements lubricated and reduce friction and wear. However, in some rolling bearings currently used for high-speed rotation, the bearing rotates very fast, the dynamic load borne by the cage is huge, and the equivalent stress also increases, affecting the service life of the cage. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a rolling bearing cage, which has a simple structure, can effectively reduce equivalent stress, ensure structural stability, extend the service life of the structure, and has good use effect.
[0004] To achieve the above-mentioned purpose, the utility model provides a rolling bearing retainer, including a frame body, on which pocket grooves for transferring rolling bodies are arranged at intervals, adjacent pocket grooves are separated by isolation columns, and a boss is arranged on the outer end surface of the isolation column, one end of the boss is connected to the isolation column, and the other end is a free end, the free end of the boss is wider than the outer end surface of the isolation column, the free end of the isolation column is connected to the isolation column through a smooth curved surface, the outer end surface of the isolation column is wider than the inner end surface, and the outer end surface and the inner end surface of the isolation column are connected by an inclined surface.
[0005] The beneficial effect of such an arrangement is as follows: such an arrangement, through the boss structure, allows the locking point to be located outside the retaining frame, and at the same time, because the outer end face of the isolation column is wider than the inner end face, the retaining frame can be adapted to rolling elements of different specifications. The different specifications here refer to rolling elements with similar diameter values, which can achieve fine-tuning of the rolling elements to meet the use requirements of high-speed bearings and have good use effects. Further, the contact area is effectively increased through the boss to ensure the stability of the structure. At the same time, the structure is simple, the layout is reasonable, the equivalent stress is reduced, and it has good use effects.
[0006] As a further configuration of the utility model, the ratio of the width of the outer end surface of the isolation column to the inner end surface of the isolation column is 2:1.
[0007] The beneficial effect of such an arrangement is that the structural layout is reasonable and reliable, the stability is strong, and the structure itself can be kept high in strength while being adaptable to rolling elements of different sizes, and materials are saved, thereby reducing production and processing costs.
[0008] As a further configuration of the utility model, the boss is arranged on a bisector of the height direction of the isolation column.
[0009] The beneficial effect of such a setting is: through such a setting, the bisector in the height direction here refers to the middle position of the isolation column, which divides the isolation column into two sections of equal length, making the overall structural layout more reasonable and reliable, ensuring the use effect of the boss as a locking point, making the structure more stable, ensuring the overall strength of the structure, and having a good use effect.
[0010] As a further configuration of the utility model, the pocket groove is provided with overtravel grooves at the four corner edge positions.
[0011] The beneficial effect of such arrangement is that, through such arrangement, the contact area of the retaining frame can be increased through the overtravel groove, and the equivalent stress can be reduced, thereby effectively extending the service life of the structure, having a good use effect, and having a simple structure, which is easy to implement and convenient to process. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;
[0013] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the utility model. DETAILED DESCRIPTION
[0014] The implementation of the rolling bearing cage of the utility model is as follows: Figure 1 to Figure 2As shown: it includes a frame body 1, on which pocket grooves 2 for transferring rolling bodies are arranged at intervals, and adjacent pocket grooves 2 are separated by isolation columns 3, and a boss 4 is arranged on the outer end surface of the isolation column 3, one end of the boss 4 is connected to the isolation column 3, and the other end is a free end, and the free end of the boss 4 is wider than the outer end surface of the isolation column 3, and the free end of the isolation column 3 is connected to the isolation column 3 through a smooth curved surface, the outer end surface of the isolation column 3 is wider than the inner end surface, and the outer end surface and the inner end surface of the isolation column 3 are connected by an inclined surface. The beneficial effect of such an arrangement is as follows: such an arrangement, through the structure of the boss 4, allows the locking point to be located outside the retaining frame, and at the same time, because the outer end face of the isolation column 3 is wider than the inner end face, the retaining frame can adapt to rolling elements of different specifications, where the different specifications refer to rolling elements with similar diameter values, which can achieve fine-tuning of the rolling elements to meet the use requirements of high-speed bearings and have a good use effect. Further, the contact area is effectively increased through the boss 4 to ensure the stability of the structure. At the same time, the structure is simple, the layout is reasonable, the equivalent stress is reduced, and a good use effect is achieved.
[0015] As a further configuration of this embodiment, the ratio of the width of the outer end face of the spacer column 3 to the inner end face of the spacer column 3 is 2: 1. The beneficial effects of this configuration are: through this configuration, the structure layout is reasonable and reliable, the stability is strong, and the structure itself can be kept high in strength while being adapted to rolling elements of different sizes, and materials are saved, reducing the production and processing costs.
[0016] As a further configuration of this embodiment, the boss 4 is arranged on the bisector in the height direction of the isolation column 3. The beneficial effect of such configuration is that, through such configuration, the bisector in the height direction here refers to the middle position of the isolation column, and the isolation column is divided into two equal length sections, so that the overall structural layout is more reasonable and reliable, and the use effect of the boss 4 as a locking point is ensured, so that the structural stability is stronger, the overall strength of the structure is ensured, and a good use effect is achieved.
[0017] As a further configuration of this embodiment, the pocket slot 2 is provided with overrun grooves 5 at the four corner edge positions. The beneficial effect of this configuration is that through this configuration, the overrun grooves 5 can increase the contact area of the cage and reduce the equivalent stress, thereby effectively extending the service life of the structure, having a good use effect, and having a simple structure, which is easy to implement and convenient to process.
[0018] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.
Claims
1. A rolling bearing cage, comprising a frame body, on which pocket grooves for transferring rolling elements are arranged at intervals, and adjacent pocket grooves are separated by spacer columns, characterized in that: A boss is arranged on the outer end surface of the isolation column, one end of the boss is connected to the isolation column, and the other end is a free end, the free end of the boss is wider than the outer end surface of the isolation column, the free end of the isolation column is connected to the isolation column through a smooth curved surface, the outer end surface of the isolation column is wider than the inner end surface, and the outer end surface and the inner end surface of the isolation column are connected through an inclined surface.
2. The rolling bearing cage according to claim 1, characterized in that: The ratio of the width of the outer end surface of the isolation column to the inner end surface of the isolation column is 2:
1.
3. The rolling bearing cage according to claim 1, characterized in that: The boss is arranged on a bisector of the height direction of the isolation column.
4. The rolling bearing cage according to claim 1, characterized in that: The pocket hole groove is provided with overtravel grooves at the four corner edge positions.