Sunflower-shaped bearing retainer and bearing
By designing the angle structure of the first and second folding parts of the sun-shaped folding part in the bearing cage and setting up an oil passage, the problem of insufficient lubrication caused by poor barrier of traditional cages is solved, and a better lubrication effect and a longer service life are achieved.
Patent Information
- Application Number
- CN202510394549.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-06-13
AI Technical Summary
The partition structure of traditional cages such as window beams leads to complete blocking of two adjacent pockets, affecting the flow of lubricating grease, and thus affecting the normal use of bearings.
A sunflower bearing cage is designed, and an angle structure is formed by the first folding part and the second folding part as the partition between adjacent pockets, and an oil passage is provided between the partitions to improve the fluidity of the lubricating grease.
It effectively improves the fluidity of lubricating grease between the cage, rolling element and the inner and outer rings of the bearing, improves the lubrication effect, reduces wear, extends the cage life, and reduces bearing weight and power loss.
Smart Images
Figure CN120140352A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of bearings, and particularly relates to a sunflower-shaped bearing cage and a bearing. Background Art
[0002] A cage is a common component in bearings, constant velocity joints, and other types of rotary couplings that include multiple rolling elements. It usually has an annular body and pocket holes provided on the annular body for accommodating the rolling elements. Adjacent pocket holes are separated by partition structures such as window beams.
[0003] The partition mechanisms such as window beams of traditional cages are usually of an integral structure, which has relatively sufficient structural strength and the structure of the traditional integral window beam is simple and the processing difficulty is relatively low. However, it usually completely blocks the adjacent two pocket holes, which is not conducive to the flow of lubricating grease between adjacent pocket holes, affects the lubrication between the cage and the rolling elements, and further affects the normal use of the bearing.
[0004] It can be seen that there are still certain defects in the prior art. Summary of the Invention
[0005] In view of this, the present invention aims to provide a sunflower-shaped bearing cage and a bearing, which can effectively improve the fluidity of lubricating grease between the cage, the rolling elements, and the inner and outer rings of the bearing by optimizing the structure of the partition between adjacent pocket holes, improve the lubrication effect, and at the same time can also achieve material reduction and weight reduction of the cage, which is beneficial to reducing the weight of the bearing and improving the performance of the bearing.
[0006] To achieve the above object, the technical solution of the present invention is realized as follows:
[0007] A sunflower-shaped bearing cage, which includes an annular body and partition parts axially arranged on both sides of the annular body along the axial direction of the annular body. Adjacent two partition parts on the same side of the annular body enclose a pocket hole. The partition parts are arranged at intervals along the circumferential direction of the annular body. Along the radial direction of the annular body, the partition part includes a first folding part arranged on the outer side of the annular body and a second folding part arranged on the inner side of the annular body. There is an included angle between the first folding part and the second folding part.
[0008] In the above solution, using the first folding part and the second folding part as the partition between adjacent pocket holes can not only play a role in limiting the rolling elements, but also effectively adapt to the stamping production of the cage, greatly improving the production efficiency and production quality. At the same time, adopting the above structure can effectively achieve material reduction and weight reduction of the cage, which is beneficial to reducing the power loss of the bearing.
[0009] As a preferred embodiment of the present application, one end of the second folding portion away from the annular body folds towards the first folding portion, and an oil passage is defined among the first folding portion, the second folding portion and the annular body.
[0010] In the above solution, the provision of the oil passage is conducive to the fluidity of the lubricating grease between adjacent pocket holes and between the pocket holes and the rolling elements, which is beneficial to improving the lubrication effect inside the bearing, thereby greatly reducing the wear of the cage and the rolling elements during use, and further reducing the failure rate of the bearing caused by the loss of the cage during use, which is beneficial to extending the life of the cage and ensuring 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, there is a buffer gap between the end of the second folding portion away from the annular body and the first folding portion.
[0012] In the above solution, by providing the buffer gap, it is convenient for the first folding portion to deflect a certain distance along the radial direction of the annular body towards the second folding portion, so that it is convenient for the rolling elements to be installed into the pocket holes from the outside of the pocket holes along the radial direction of the annular body, greatly improving the installation efficiency of the rolling elements on the cage, and further being beneficial to improving the overall assembly production efficiency of the bearing.
[0013] As a preferred embodiment of the present application, the connection between the first folding portion and the annular body has a first arc transition portion, and the connection between the second folding portion and the annular body has a second arc transition portion.
[0014] In the above solution, by providing the first arc transition portion and the second arc transition portion, the stress concentration at the connections of the first folding portion, the second folding portion and the annular body can be effectively reduced, avoiding the fracture at the connections of the first folding portion, the second folding portion and the annular body due to stress concentration, and ensuring the structural strength of the sunflower-shaped bearing 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 folding portion is larger than that of the second folding portion.
[0016] As a preferred embodiment of the present application, along the axial direction of the annular body, the length of the first folding portion is greater than that of the second folding portion.
[0017] As a preferred embodiment of the present application, the side of the first folding portion facing the pocket hole has a shape adapted to the outer wall of the rolling element.
[0018] Adopting the above setting method can effectively enhance the limiting effect of the first folding part on the rolling elements, ensuring that the rolling elements are located inside the pocket during smooth rolling.
[0019] As a preferred embodiment of the present application, the side of the second folding part facing the pocket adopts a straight edge structure.
[0020] Adopting this setting method can not only cooperate with the first folding part to limit the rolling elements, but also be beneficial to the contact area between the second folding part and the rolling elements, reducing frictional losses.
[0021] As a preferred embodiment of the present application, wear-resistant layers are provided on the sides of the first folding part and the second folding part facing the pocket.
[0022] In the above solution, by setting the wear-resistant layers, the wear degree of the cage during the use of the bearing can be further reduced, which is beneficial to extending the life of the cage.
[0023] Another object of the present application is a bearing, in which the sunflower-shaped bearing cage described above is provided.
[0024] The bearing of the present invention has the same beneficial effects as the above sunflower-shaped bearing cage, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:
[0026] Figure 1 is a schematic structural diagram of the sunflower-shaped bearing cage in the present application;
[0027] Figure 2 is Figure 1 an enlarged structural view of part A in
[0028] List of components and reference numerals:
[0029] 1 annular body, 11 partition part, 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 OF THE EMBODIMENTS
[0030] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the drawings of the specification.
[0031] 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 may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.
[0032] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.
[0033] In the present application, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0034] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
[0035] At present, the separating mechanisms such as the window beams of traditional cages are usually of an integral structure, which has relatively sufficient structural strength and the structure of the traditional integral window beam is simple and the processing difficulty is relatively low. However, it usually completely blocks the adjacent two pocket holes 12, which is not conducive to the flow of lubricating grease and the like between the adjacent pocket holes 12, affecting the lubrication between the cage and the rolling elements, and further affecting the normal use of the bearing.
[0036] In order to solve the above problems, the present application proposes a sunflower-shaped bearing cage and a bearing.
[0037] In a first aspect, referring to Figure 1 , Figure 2 as shown, the present application proposes a sunflower-shaped bearing cage. The sunflower-shaped bearing cage includes an annular main body 1 and partition parts 11 axially arranged on both sides of the annular main body 1. A pocket 12 is defined between two adjacent partition parts 11 on the same side of the annular main body 1. The partition parts 11 are arranged at intervals along the circumferential direction of the annular main body 1. In the radial direction of the annular main body 1, the partition part 11 includes a first folding part 111 arranged on the outer side of the annular main body 1 and a second folding part 112 arranged on the inner side of the annular main body 1. There is an included angle between the first folding part 111 and the second folding part 112. Continuing to refer to Figure 1 and Figure 2 as shown, the first folding part 111 and the second folding part 112 are folded relative to each other, and the included angle between them is an acute angle.
[0038] In the above solution, by using the first folding part 111 and the second folding part 112 as the partition between adjacent pockets 12, it can not only play a role in limiting the rolling elements, but also effectively adapt to the stamping production of the cage, greatly improving the production efficiency and production quality. At the same time, adopting the above structure can effectively reduce the material and weight of the cage, which is beneficial to reducing the bearing power loss. At the same time, adopting the above structure can well adapt to the stamping production process of the metal bearing cage, greatly improving the stamping production efficiency and production quality of the cage, and is beneficial to obtaining good economic benefits.
[0039] Furthermore, referring to Figure 1 and Figure 2 as shown, the end of the second folding part 112 away from the annular main body 1 is folded towards the first folding part 111. Preferably, the angle of the first folding part 111 folded towards the inner side of the annular main body 1 does not exceed 10°. An oil passage 113 is defined among the first folding part 111, the second folding part 112 and the annular main body 1. By adopting this setting method, a triangular structure is actually formed among the first folding part 111, the second folding part 112 and the annular main body 1. By using the stability of the triangle in this setting method, the structural strength of the partition part 11 can be effectively guaranteed, and then the structural strength of the sunflower-shaped bearing cage in the present application can be guaranteed. At the same time, in the above solution, the setting of the oil passage 113 is beneficial to the fluidity of the lubricating grease between adjacent pockets 12 and between the pockets 12 and the rolling elements, which is beneficial to improving the lubrication effect inside the bearing, thereby greatly reducing the wear of the cage and the rolling elements during use, and then reducing the failure rate caused by the cage loss during the use of the bearing, which is beneficial to extending the life of the cage and ensuring the efficient, safe and stable use of the bearing.
[0040] In an example, continuing to refer to Figure 1 and Figure 2As shown in the figure, along the radial direction of the annular body 1, there is a buffer gap 114 between the end of the second folding portion 112 away from one end of the annular body 1 and the first folding portion 111. By setting the buffer gap 114, it is convenient for the first folding portion 111 to deflect a certain distance along the radial direction of the annular body 1 towards the second folding portion 112, so that the rolling elements can be installed into the pocket 12 from the outside of the pocket 12 along the radial direction of the annular body 1. Through the deflection buffer of the first folding portion 111, the pressure on the first folding portion 111 during the installation of the rolling elements is reduced, avoiding mechanical hard damage to the rolling elements and the first folding portion 111, greatly improving the installation efficiency of the rolling elements on the cage, and thus being beneficial to improving the overall assembly production efficiency of the bearing.
[0041] As a preferred embodiment of the present application, referring to Figure 2 As shown in the figure, at the connection between the first folding portion 111 and the annular body 1, there is a first arc transition portion 115, and at the connection between the second folding portion 112 and the annular body 1, there is a second arc transition portion 116. By setting the first arc transition portion 115 and the second arc transition portion 116, the stress concentration at the connections between the first folding portion 111, the second folding portion 112 and the annular body 1 can be effectively reduced, avoiding the occurrence of fractures at the connections between the first folding portion 111, the second folding portion 112 and the annular body 1 due to stress concentration, ensuring the structural strength of the sunflower-shaped bearing cage in the present application, and also being beneficial to avoiding the appearance of sharp structures on the outside of the cage that may damage the inner and outer rings of the bearing.
[0042] In a preferred example, referring to Figure 1 and Figure 2 As shown in the figure, along the radial direction of the annular body 1, the projected area of the first folding portion 111 is larger than that of the second folding portion 112. Along the axial direction of the annular body 1, the length of the first folding portion 111 is greater than that of the second folding portion 112, and the side of the first folding portion 111 facing the pocket 12 has a shape adapted to the outer wall of the rolling element, while the side of the second folding 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 partition portion 11, it is beneficial to reduce the contact area between the first folding portion 111, the second folding portion 112 and the rolling elements, thereby reducing the wear of the first folding portion 111, the second folding portion 112 and the rolling elements.
[0043] Furthermore, as a preferred embodiment of the present application, wear-resistant layers are provided on the sides of the first folding portion 111 and the second folding portion 112 facing the pocket 12. By setting the wear-resistant layers, the wear degree of the cage during the use of the bearing can be further reduced, which is beneficial to extending the service life of the cage.
[0044] Another object of the present application is to provide a bearing, in which the sunflower-shaped bearing cage as described above is provided. Since the bearing includes the above-mentioned sunflower-shaped bearing cage, it also has the beneficial effects of the above-mentioned sunflower-shaped bearing cage. The bearing provided by the embodiment of the present invention includes each structure of the sunflower-shaped bearing cage in any of the above embodiments. To avoid repetition, it will not be described in detail here.
[0045] What is not described in this application can be realized by adopting or referring to the prior art.
[0046] Each embodiment in this specification is described in a progressive manner. For the same and similar parts between the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.
Claims
1. A sunflower-shaped bearing retainer, characterized in that: It includes an annular body and a partition part axially arranged on both sides of the annular body, a pocket hole is surrounded between two adjacent partition parts on the same side of the annular body, the partition parts are arranged at intervals along the circumference of the annular body, and the partition part radially includes a first folding part arranged on the outer side of the annular body and a second folding part arranged on the inner side of the annular body, and an angle is formed between the first folding part and the second folding part.
2. The sunflower-shaped bearing retainer according to claim 1, characterized in that: One end of the second folded portion away from the annular body is folded toward the first folded portion, and an oil passage is surrounded by the first folded portion, the second folded portion and the annular body.
3. The sunflower-shaped bearing retainer according to claim 2, characterized in that: Along the radial direction of the annular body, a buffer gap is provided between an end of the second folded portion away from one end of the annular body and the first folded portion.
4. The sunflower-shaped bearing retainer according to claim 1, characterized in that: A first arc-shaped transition portion is provided at a connection between the first folded portion and the annular body, and a second arc-shaped transition portion is provided at a connection between the second folded portion and the annular body.
5. The sunflower-shaped bearing retainer according to claim 1, characterized in that: Along the radial direction of the annular body, a projection area of the first folded portion is larger than a projection area of the second folded portion.
6. The sunflower-shaped bearing retainer according to claim 1, characterized in that: 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.
7. The sunflower-shaped bearing retainer according to claim 1, characterized in that: The side of the first folded portion facing the pocket has a shape adapted to the outer wall of the rolling body.
8. The sunflower-shaped bearing retainer according to claim 1, characterized in that: The side of the second folded portion facing the pocket hole adopts a straight edge structure.
9. The sunflower-shaped bearing retainer according to claim 1, characterized in that: A wear-resistant layer is provided on one side of the first folded portion and the second folded portion facing the pocket hole.
10. A bearing, characterized in that: The bearing is provided with a sunflower-shaped bearing retainer as described in any one of claims 1 to 9.
Citation Information
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