Sunflower-shaped bearing retainer
By optimizing the separation structure of the bearing cage and adopting a folded section and oil passage design, the problem of poor lubricant flow was solved, improving lubrication effect and production efficiency, and extending the service life of the bearing.
Patent Information
- Application Number
- CN202520589598.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The traditional bearing cage's window beam structure results in poor flow of lubricating grease between adjacent pockets, affecting lubrication performance, and its structural strength and production efficiency need to be improved.
The bearing adopts a sunflower-shaped cage design, with the first and second folded sections serving as a separation structure to form an oil passage and buffer gap. Combined with the arc-shaped transition section and wear-resistant layer, it optimizes the fluidity of lubricating grease and structural strength.
It improves lubrication, reduces wear, extends cage life, increases production efficiency and structural strength, and reduces bearing power loss.
Smart Images
Figure CN223739891U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of bearing retainer, and particularly relates to a sun-type bearing retainer. BACKGROUND
[0002] The retainer is a common component in bearings, constant-velocity joints and other types of rotary couplings including a plurality of rolling elements, and generally has a ring-shaped main body and pockets arranged on the ring-shaped main body for accommodating the rolling elements, and adjacent pockets are separated by window beams or other separation structures.
[0003] The window beam separation structure of the conventional retainer is generally of an integral structure, which has sufficient structural strength and simple structure and relatively low processing difficulty, but it completely blocks the adjacent two pockets, which is not conducive to the flow of lubricating grease between the adjacent pockets, affects the lubrication between the retainer and the rolling elements, and further affects the normal use of the bearing.
[0004] Therefore, the prior art still has certain defects. CONTENT OF THE UTILITY MODEL
[0005] Therefore, the utility model aims to provide a sun-type bearing retainer, which effectively improves the flowability of lubricating grease between the retainer, the rolling elements and the inner and outer rings of the bearing by optimizing the structure of the separation part between adjacent pockets, improves the lubrication effect, and also realizes the weight reduction of the retainer, which is conducive to reducing the weight of the bearing and improving the performance of the bearing.
[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:
[0007] A sun-type bearing retainer includes a ring-shaped main body and separation parts arranged on both sides of the ring-shaped main body in the axial direction, adjacent two separation parts on the same side of the ring-shaped main body surround a pocket, the separation parts are arranged at intervals in the circumferential direction of the ring-shaped main body, the separation parts include a first folded part arranged on the outer side of the ring-shaped main body and a second folded part arranged on the inner side of the ring-shaped main body in the radial direction of the ring-shaped main body, and the first folded part and the second folded part have an included angle therebetween.
[0008] In the above-mentioned scheme, the first folded part and the second folded part as the separation between adjacent pockets can not only play a limiting role on the rolling elements, but also effectively adapt to the stamping production of the retainer, greatly improving the production efficiency and production quality, and the above-mentioned structure can effectively realize the weight reduction of the retainer, which is conducive to reducing the power loss of the bearing.
[0009] As a preferred embodiment of the present application, the second folded portion is folded away from one end of the annular body towards the first folded portion, and an oil passage is formed between the first folded portion, the second folded portion and the annular body.
[0010] In the above scheme, the setting of the oil passage is conducive to the flow of lubricating grease between adjacent pockets and between the pockets and the rolling elements, which helps to improve the lubrication effect inside the bearing, thereby greatly reducing the wear of the retainer and the rolling elements during use, and further reducing the failure rate of the bearing due to the loss of the retainer during use, which helps to prolong the service life of the retainer and ensure the efficient, safe and stable use of the bearing.
[0011] As a preferred embodiment of the present application, along the radial direction of the annular body, the end of the second folded portion away from one end of the annular body has a buffer gap with the first folded portion.
[0012] In the above scheme, by setting the buffer gap, the first folded portion can be deflected a certain distance along the radial direction of the annular body towards the second folded portion, thereby facilitating the installation of the rolling elements into the pockets along the radial direction of the annular body from the outside to the inside of the pockets, greatly improving the installation efficiency of the rolling elements on the retainer, and further helping to improve the overall assembly production efficiency of the bearing.
[0013] As a preferred embodiment of the present application, the connection between the first folded portion and the annular body has a first arc-shaped transition portion, and the connection between the second folded portion and the annular body has a second arc-shaped transition portion.
[0014] In the above scheme, by setting the first arc-shaped transition portion and the second arc-shaped transition portion, the stress concentration at the connection between the first folded portion, the second folded portion and the annular body can be effectively reduced, avoiding the fracture at the connection due to stress concentration, and ensuring the structural strength of the cage-shaped bearing retainer in the present application.
[0015] As a preferred embodiment of the present application, along the radial direction of the annular body, the projected area of the first folded portion is greater than the projected area of the second folded portion.
[0016] As a preferred embodiment of the present application, along the axial direction of the annular body, the length of the first folded portion is greater than the length of the second folded portion.
[0017] As a preferred embodiment of the present application, the side of the first folded portion facing the pocket has a shape adapted to the outer wall of the rolling element.
[0018] Adopt the above setting mode can effectively improve the first folding part for the limiting effect of the rolling body, guarantee the rolling body in the process of smooth rolling using in the pocket inside.
[0019] As a preferred embodiment of the application, the second folding part towards the side of the pocket adopts a straight edge structure.
[0020] Adopt this setting mode can both cooperate with the first folding part for limiting the rolling body, also conducive to the contact area between the second folding part and the rolling body, reduce friction loss.
[0021] As a preferred embodiment of the application, the first folding part, the second folding part towards the side of the pocket is provided with wear-resistant layer.
[0022] In the above scheme, by setting wear-resistant layer can further reduce the wear degree of the cage in the process of bearing use, is conducive to prolong the service life of the cage.
[0023] As a preferred embodiment of the application, the first folding part and the angle between the annular body axial is not more than 10°, the second folding part and the angle between the annular body axial is not more than 45°. BRIEF DESCRIPTION OF DRAWINGS
[0024] The drawings described herein are used to provide further understanding of the application, constitute a part of the application, the illustrative embodiments of the application and its explanation are used to explain the application, and do not constitute improper limitation on the application. In the drawings:
[0025] Figure 1 For the structure of sun type bearing cage in the application;
[0026] Figure 2 For Figure 1 The structure of part A is enlarged.
[0027] Parts and list of reference numerals:
[0028] 1 annular body, 11 partition, 111 first folding part, 112 second folding part, 113 oil passage, 114 buffer gap, 115 first arc transition part, 116 second arc transition part, 12 pocket. DETAILED DESCRIPTION
[0029] In order to more clearly explain the overall idea of the application, the following will be described in detail with reference to the drawings.
[0030] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present application. It can be understood that the embodiments of the present application and the characteristics of the embodiments can be combined with each other under the condition of no conflict.
[0031] In addition, in the description of the present application, it needs to be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0032] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0034] At present, the window beam and other partition mechanisms of the traditional retainer are usually of an integral structure, which has sufficient structural strength and the structure of the traditional integral window beam is simple and has relatively low processing difficulty, but it usually completely blocks the adjacent two pockets 12, which is not conducive to the flow of lubricating grease between the adjacent pockets 12, affects the lubrication between the retainer and the rolling body, and further affects the normal use of the bearing.
[0035] In order to solve the above problems, the present application provides a V-shaped bearing retainer.
[0036] Referring to Figure 1 , Figure 2 , the sun type bearing retainer comprises a ring-shaped main body 1 and a partition 11 arranged on both sides of the ring-shaped main body 1 in the axial direction, a pocket 12 is surrounded between two adjacent partitions 11 on the same side of the ring-shaped main body 1, the partitions 11 are arranged at intervals in the circumferential direction of the ring-shaped main body 1, and the partition 11 comprises a first folded portion 111 arranged on the outer side of the ring-shaped main body 1 and a second folded portion 112 arranged on the inner side of the ring-shaped main body 1 in the radial direction of the ring-shaped main body 1, and the first folded portion 111 and the second folded portion 112 have an included angle therebetween, and referring to Figure 1 and Figure 2 , the first folded portion 111 and the second folded portion 112 are oppositely folded, and the included angle therebetween is an acute angle.
[0037] In the above scheme, by taking the first folded portion 111 and the second folded portion 112 as the partition between adjacent pockets 12, both the limiting effect on the rolling body and the effective adaptation to the stamping production of the retainer can be achieved, which greatly improves the production efficiency and production quality, and at the same time, the above structure can effectively realize the weight reduction of the retainer by material removal, which is conducive to reducing the bearing power loss. At the same time, the above structure can well adapt to the stamping production process of the metal bearing retainer, greatly improving the stamping production efficiency and production quality of the retainer, and is conducive to obtaining good economic benefits.
[0038] Further, referring to Figure 1 and Figure 2 , one end of the second folded portion 112 away from the ring-shaped main body 1 is folded towards the first folded portion 111, preferably, the angle of the first folded portion 111 folded towards the inner side of the ring-shaped main body 1 is not more than 10°, that is, the included angle between the first folded portion 111 and the axial direction of the ring-shaped main body 1 is not more than 10°, and the angle of the second folded portion 113 folded towards the outer side of the ring-shaped main body 1 is not more than 45°, that is, the included angle between the second folded portion 112 and the axial direction of the ring-shaped main body 1 is not more than 45°, and an oil passage 113 is surrounded between the first folded portion 111, the second folded portion 112 and the ring-shaped main body 1. By adopting this arrangement, a triangular structure is actually formed between the first folded portion 111, the second folded portion 112 and the ring-shaped main body 1, and the stability of the triangular structure can effectively guarantee the structural strength of the partition 11, and further guarantee the structural strength of the sun type bearing retainer in the present application. At the same time, in the above scheme, the arrangement of the oil passage 113 is conducive to the flowability of the lubricating grease between adjacent pockets 12 and between the pocket 12 and the rolling body, which is conducive to improving the lubrication effect inside the bearing, thereby greatly reducing the wear of the retainer and the rolling body during use, thereby reducing the failure rate of the bearing caused by the wear of the retainer during use, and prolonging the service life of the retainer, and guaranteeing the efficient, safe and stable use of the bearing.
[0039] In one example, continuing to refer to Figure 1 and Figure 2 shown, along the radial direction of the annular body 1, there is a buffer gap 114 between the end of the second folded portion 112 away from the end of the annular body 1 and the first folded portion 111. By providing the buffer gap 114, the first folded portion 111 is facilitated to deflect a certain distance along the radial direction of the annular body 1 towards the second folded portion 112, so as to facilitate the installation of the rolling body along the radial direction of the annular body 1 from the outside of the pocket 12 into the pocket 12, and the deflection buffer of the first folded portion 111 reduces the pressure on the first folded portion 111 during the installation of the rolling body, avoiding mechanical damage to the rolling body and the first folded portion 111, greatly improving the installation efficiency of the rolling body on the retainer, and further facilitating the improvement of the overall assembly production efficiency of the bearing.
[0040] As a preferred embodiment of the present application, referring to Figure 2 shown, the connection between the first folded portion 111 and the annular body 1 has a first arc-shaped transition portion 115, and the connection between the second folded portion 112 and the annular body 1 has a second arc-shaped transition portion 116. By providing the first arc-shaped transition portion 115 and the second arc-shaped transition portion 116, the stress concentration at the connection between the first folded portion 111, the second folded portion 112 and the annular body 1 can be effectively reduced, avoiding the rupture at the connection due to stress concentration, ensuring the structural strength of the cage-shaped bearing retainer in the present application, and this setting method is also beneficial to avoid damage to the inner and outer rings of the bearing caused by sharp structures on the outside of the retainer.
[0041] In one preferred example, referring to Figure 1 and Figure 2 shown, along the radial direction of the annular body 1, the projected area of the first folded portion 111 is greater than that of the second folded portion 112. Along the axial direction of the annular body 1, the length of the first folded portion 111 is greater than that of the second folded portion 112, and the side of the first folded portion 111 facing the pocket 12 has a shape adapted to the outer wall of the rolling body, and the side of the second folded portion 112 facing the pocket 12 adopts a straight edge structure. By adopting this setting method, while ensuring the separation and limiting function of the separation portion 11, it is beneficial to reduce the contact area between the first folded portion 111, the second folded portion 112 and the rolling body, thereby reducing the wear of the first folded portion 111, the second folded portion 112 and the rolling body.
[0042] Further, as a preferred embodiment of the present application, the side of the first folded portion 111 and the second folded portion 112 facing the pocket 12 is provided with a wear-resistant layer. By providing the wear-resistant layer, the wear degree of the retainer during use of the bearing can be further reduced, which is beneficial to prolong the service life of the retainer.
[0043] The places not described in the application can be realized by using or referring to the existing technology.
[0044] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. The above is only the embodiment of the application and is not used to limit the application. The application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the scope of the claims of the application.
Claims
1. A caged bearing cage characterized in that, The device comprises a ring-shaped body and partition parts arranged axially on both sides of the ring-shaped body, a pocket is enclosed between two adjacent partition parts on the same side of the ring-shaped body, the partition parts are arranged at intervals along the circumference of the ring-shaped body, and the partition parts comprise a first folded part arranged on the outer side of the ring-shaped body and a second folded part arranged on the inner side of the ring-shaped body along the radial direction of the ring-shaped body, and the first folded part and the second folded part have an included angle.
2. The caged bearing of claim 1, wherein, The second folded part is folded towards the first folded part from one end of the ring-shaped body, and an oil passage is enclosed between the first folded part, the second folded part and the ring-shaped body.
3. The caged bearing of claim 2, wherein, Along the radial direction of the ring-shaped body, the end of the second folded part away from the ring-shaped body and the first folded part have a buffer gap.
4. The caged bearing of claim 1, wherein, The connection between the first folded part and the ring-shaped body has a first arc-shaped transition part, and the connection between the second folded part and the ring-shaped body has a second arc-shaped transition part.
5. The caged bearing of claim 1, wherein, Along the radial direction of the ring-shaped body, the projection area of the first folded part is greater than that of the second folded part.
6. The caged bearing of claim 1, wherein, Along the axial direction of the ring-shaped body, the length of the first folded part is greater than that of the second folded part.
7. The caged bearing of claim 1, wherein, The side of the first folded part towards the pocket has a shape suitable for the outer wall of the rolling body.
8. The caged bearing of claim 1, wherein, The side of the second folded part towards the pocket adopts a straight edge structure.
9. The caged bearing of claim 1, wherein, The side of the first folded part and the second folded part towards the pocket is provided with a wear-resistant layer.
10. The caged bearing of claim 1, wherein, The included angle between the first folded part and the axial direction of the ring-shaped body is not greater than 10°, and the included angle between the second folded part and the axial direction of the ring-shaped body is not greater than 45°.