Thrust assembled bearing retainer

Abstract

The utility model discloses a thrust assembled bearing retainer, which belongs to the field of bearing retainers and comprises a first retainer body and a second retainer body which are coaxially arranged, and the opposite splicing surfaces of the first retainer body and the second retainer body are provided with convex points, concave holes and oil storage grooves. The first retainer body and the second retainer body are correspondingly connected through the multiple convex points and the multiple concave hole structures, loads can be more evenly dispersed to the whole retainer through matching of the multiple convex points and the multiple concave holes, the possibility of local stress concentration is reduced, the overall bearing capacity is improved, and when the first retainer body and the second retainer body are spliced, the bearing capacity is improved. The opposite oil storage grooves of the first retainer body and the second retainer body can form an oil storage space, lubricating oil in the oil storage space can enter the window holes through the gaps under the action of centrifugal force and then enter the gaps between the rolling bodies and the retainers, and the lubricating oil can effectively reduce friction and abrasion between the rolling bodies and the retainers, so that the service life of the rolling bodies is prolonged. Therefore, the service life of the bearing is prolonged, and the bearing capacity of the bearing is improved.

Description

Technical Field

[0001] The present application belongs to the field of bearing retainers, and in particular to a thrust assembly bearing retainer. Background Art

[0002] The main function of the thrust bearing is to bear the force in the direction parallel to the axis, that is, the axial force. The thrust bearing can bear a large axial load and can ensure that the rotating shaft will not bend too much when bearing the load. Thrust bearings are widely used in the automotive industry, aerospace, electric power industry, heavy machinery and other fields. Specifically, the axial load support in the automotive gearbox, differential, engine and other parts. The axial bearing capacity of the thrust bearing is one of its most critical performances, but under the interference of various factors, its axial bearing capacity will be reduced. The cage of the thrust bearing is mainly used to fix and guide the rolling elements (such as balls or rollers). When bearing axial loads, the cage needs to have sufficient rigidity and The strength of the cage is used to support the rolling elements and transfer the load. The low structural strength of the cage will cause it to deform or be damaged when bearing load, thereby reducing the axial load-bearing capacity of the thrust bearing. At the same time, the lubrication of the cage and the rollers will significantly affect the axial load of the thrust bearing. Good lubrication can form an effective lubrication film between the rolling elements and the cage, significantly reducing the friction between them. In the thrust bearing, when the lubrication is poor, the friction between the rolling elements and the cage will increase, which will directly affect the friction, temperature rise and contact conditions of the thrust bearing, and thus have a significant impact on its ability to withstand axial loads. Therefore, it is very necessary to develop a thrust bearing cage with enhanced structural strength and improved lubrication performance. Utility Model Content

[0003] The utility model provides a thrust assembly bearing retainer with an enhanced structure and better lubrication performance to improve the axial bearing capacity of the thrust bearing retainer.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A thrust assembly bearing retainer comprises a first retainer body and a second retainer body which are coaxially arranged, wherein the first retainer body and the second retainer body both comprise an inner ring and an outer ring, a window beam connecting the inner ring and the outer ring is arranged between the two, a plurality of window beams are arranged at intervals in the circumferential direction, and window holes are formed between adjacent window beams, and relative joint surfaces of the first retainer body and the second retainer body are provided with convex points, concave holes and oil storage grooves, the first retainer body and the second retainer body are connected as a whole through the convex points and the concave holes, and the relative oil storage grooves form an oil storage space, and the lubricating oil in the oil storage space can enter the window holes and be distributed between the rolling element and the retainer, thereby reducing friction and wear, reducing heat generation, and improving the service life and load-bearing capacity of the bearing.

[0006] The thrust assembly bearing retainer of the present application, the first retainer body and the second retainer body together constitute the main body of the bearing retainer, the first retainer body and the second retainer body are correspondingly connected through a plurality of convex points and concave hole structures to ensure that the two are firmly spliced ​​together, through the cooperation of the plurality of convex points and concave holes, the load can be more evenly distributed to the entire retainer, reducing the possibility of local stress concentration and improving the overall load-bearing capacity, when the two are spliced, the oil storage grooves relative to the first retainer body and the second retainer body will form an oil storage space, the lubricating oil in the oil storage space will be affected by centrifugal force, enter the window hole through the gap, and then enter the gap between the rolling element and the retainer, these lubricating oils can effectively reduce the friction and wear between the rolling element and the retainer, reduce heat generation, and thus improve the service life and load-bearing capacity of the bearing.

[0007] In a preferred implementation, the convex points and the concave holes are arranged at intervals on the window beam, and the convex points of the first retaining frame body / the second retaining frame body are connected to the concave holes of the second retaining frame body / the first retaining frame body.

[0008] By arranging protrusions and recessed holes at intervals on the window beam, and arranging the protrusions and recessed holes at intervals on the window beam, and making them form a matching connection between the first retaining frame body and the second retaining frame body, the axial load-bearing capacity of the retaining frame can be effectively improved. The protrusions and recessed holes can disperse the load to multiple points instead of concentrating it on a single connection. This load dispersion can reduce local stress, improve the load-bearing capacity of the retaining frame, and at the same time reduce fatigue and damage caused by stress concentration.

[0009] In a preferred implementation, the oil storage tank is arranged on the window beam, and a support portion is provided in the oil storage tank to increase the contact surface.

[0010] Providing a window beam in the oil storage tank is beneficial to delivering the lubricating oil to the contact position between the retaining frame and the roller through the window hole. Providing a support portion in the oil storage tank can increase the contact surface between the first retaining frame and the second retaining frame. Specifically, the provision of the support portion significantly increases the contact area between the first retaining frame and the second retaining frame in the oil storage tank area. The increased contact area can provide more stable support and connection.

[0011] In a preferred implementation, the depth of the oil storage tank accounts for 1 / 5-1 / 4 of the width of the window beam.

[0012] Under the premise of ensuring the overall strength, the depth of the oil storage tank should not be too deep to avoid weakening the structural strength of the window beam, and the depth of the oil storage tank should not be too shallow to ensure sufficient oil storage capacity. The reasonable range of the oil storage tank depth is 1 / 5 to 1 / 4 of the window beam width. This ratio can ensure that the oil storage tank has sufficient volume to store lubricating oil without excessively weakening the structural strength of the window beam.

[0013] In a preferred implementation, one or more oil storage tanks are provided.

[0014] In a preferred implementation, the cross-section of the window beam gradually decreases from the outer ring to the inner ring.

[0015] The tapering cross-section means that less material can be used in areas where high strength and stiffness are not required, which helps save material costs while reducing the weight of the entire structure.

[0016] In a preferred implementation, the window beam is provided with a rib extending toward the center of the window hole on a surface facing the window hole so as to wrap the roller.

[0017] When the ribs of the first cage and the second cage relative to each other wrap the roller in the pocket, they form a closed space, which can limit the movement range of the roller and prevent it from escaping from the pocket.

[0018] In a preferred implementation, the contact surface between the rib and the rolling element is an arc-shaped surface adapted to the rolling element.

[0019] In a preferred implementation, the rib is provided with a rib groove, and a plurality of rib grooves are provided along the length direction of the rib.

[0020] The flange grooves are arranged in multiple lengths along the flange. The main purpose of this design is to reduce the contact area between the flange and the roller. By reducing the contact area, friction and wear can be reduced, thereby extending the service life of the roller and flange. Another important function is to reduce the overall weight of the flange. Under the premise of ensuring structural strength, the overall weight can be reduced by reducing the use of materials. The groove design also helps prevent oil scraping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 A schematic diagram of a three-dimensional structure of a first cage of a thrust assembly bearing cage of the present application is depicted;

[0023] Figure 2 A schematic diagram of a three-dimensional structure of a second cage of a thrust assembly bearing cage of the present application is depicted;

[0024] Figure 3 A schematic diagram of a three-dimensional structure of a schematic implementation of a thrust assembly bearing cage of the present application is depicted;

[0025] Description of labels:

[0026] 1A-first retaining frame; 1B-second retaining frame; 10-inner ring; 11-outer ring; 12-window beam; 120-rib; 1200-rib groove; 121-convex point; 122-concave hole; 123-oil storage tank; 124-support part; 13-window hole. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are considered to be illustrative and non-restrictive in nature.

[0028] In the description of the present invention, it is necessary to understand that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention. In the present invention, unless otherwise clearly specified and limited, a first feature being "upper" or "lower" than a second feature may be the first and second features directly contacting, or the first and second features indirectly contacting through an intermediate medium.

[0029] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0030] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0031] The utility model is described below in conjunction with the accompanying drawings.

[0032] The specific plans adopted are:

[0033] like Figure 1-3 As shown, the utility model provides a thrust assembly bearing retainer, including two coaxially arranged first retainer bodies 1A and second retainer bodies 1B, the first retainer body and the second retainer body both include an inner ring 10 and an outer ring 11, a window beam 12 connecting the inner ring 10 and the outer ring 11 is provided between the inner ring 10 and the outer ring 11, a plurality of window beams 12 are arranged at intervals in the circumferential direction, and window holes 13 are formed between adjacent window beams, and relative joint surfaces of the first retainer body and the second retainer body are provided with convex points 121, concave holes 122 and oil storage grooves 123, the first retainer body and the second retainer body are connected as a whole through the convex points and the concave holes, and the relative oil storage grooves 123 form an oil storage space, and the lubricating oil in the oil storage space can enter the window holes and be distributed between the rolling elements and the retainer, thereby reducing friction and wear, reducing heat generation, and improving the service life and load-bearing capacity of the bearing.

[0034] The thrust assembly bearing retainer of the present application, the first retainer body and the second retainer body together constitute the main body of the bearing retainer, the first retainer body and the second retainer body are correspondingly connected through a plurality of convex points and concave hole structures to ensure that the two are firmly spliced ​​together, through the cooperation of the plurality of convex points and concave holes, the load can be more evenly distributed to the entire retainer, reducing the possibility of local stress concentration and improving the overall load-bearing capacity, when the two are spliced, the oil storage grooves relative to the first retainer body and the second retainer body will form an oil storage space, the lubricating oil in the oil storage space will be affected by centrifugal force, enter the window hole through the gap, and then enter the gap between the rolling element and the retainer, these lubricating oils can effectively reduce the friction and wear between the rolling element and the retainer, reduce heat generation, and thus improve the service life and load-bearing capacity of the bearing.

[0035] As a preferred embodiment of the present application, the protrusions 121 and the recesses 122 are arranged at intervals on the window beam, and the protrusions of the first retaining frame body / the second retaining frame body are connected to the recesses of the second retaining frame body / the first retaining frame body.

[0036] By arranging protrusions and recessed holes at intervals on the window beam, and arranging the protrusions and recessed holes at intervals on the window beam, and making them form a matching connection between the first retaining frame body and the second retaining frame body, the axial load-bearing capacity of the retaining frame can be effectively improved. The protrusions and recessed holes can disperse the load to multiple points instead of concentrating it on a single connection. This load dispersion can reduce local stress, improve the load-bearing capacity of the retaining frame, and at the same time reduce fatigue and damage caused by stress concentration.

[0037] For further information, see Figure 1Or 2, the oil storage tank 123 is arranged on the window beam, and a support part 124 is arranged in the oil storage tank to increase the contact surface. The window beam of the oil storage tank is conducive to sending the lubricating oil to the contact position between the cage and the roller through the window hole. The support part is arranged in the oil storage tank to increase the contact surface of the first cage and the second cage. Specifically, the setting of the support part significantly increases the contact area of ​​the first cage and the second cage in the oil storage tank area. This increased contact area can provide more stable support and connection. The design of the support part can be regarded as a local reinforcement of the cage structure. It can provide additional support in the area that needs to withstand higher pressure or impact force, thereby enhancing the structural strength of the entire cage.

[0038] In addition, considering that providing an oil storage tank in the window beam may reduce its structural strength, in this embodiment, the depth of the oil storage tank is designed to account for 1 / 5-1 / 4 of the width of the window beam.

[0039] Under the premise of ensuring the overall strength, the depth of the oil storage tank should not be too deep to avoid weakening the structural strength of the window beam, and the depth of the oil storage tank should not be too shallow to ensure sufficient oil storage capacity. The reasonable range of the oil storage tank depth is 1 / 5 to 1 / 4 of the window beam width. This ratio can ensure that the oil storage tank has sufficient volume to store lubricating oil without excessively weakening the structural strength of the window beam.

[0040] Furthermore, one or more oil storage tanks are provided without affecting the structural strength of the window beam.

[0041] As a preferred embodiment of the present application, the cross section of the window beam gradually decreases from the outer ring to the inner ring. For example, the isosceles triangle in the attached figure is used as an example. As the cross section of the window beam gradually decreases, the stress on the tip portion is relatively concentrated. However, considering that the tip is connected to the inner ring, this area is usually not the main load-bearing area. The opposite end of the tip is connected to the outer ring and bears a greater load. Its larger cross-sectional area can provide sufficient strength and rigidity, thereby optimizing the stress distribution of the entire window beam. The design of gradually decreasing cross section means that the use of materials can be reduced in areas that do not require high strength and high rigidity, which helps save material costs and reduce the weight of the entire structure.

[0042] As a preferred embodiment of the present application, the window beam is provided with a rib extending toward the center of the window hole to wrap the roller towards the window hole, and when the relative ribs of the first retaining frame and the second retaining frame wrap the roller in the pocket, they form a closed space, which can limit the movement range of the roller and prevent it from escaping from the pocket.

[0043] Furthermore, the contact surface between the rib and the rolling element is an arc-shaped surface adapted to the rolling element. The main purpose of this design is to ensure that the rolling element can form a smoother contact with the rib during movement, thereby reducing friction and wear and increasing the service life of the rolling element.

[0044] In addition, the rib is provided with a rib groove, and a plurality of rib grooves 1200 are arranged along the length direction of the rib 120 .

[0045] A plurality of flange grooves 1200 are provided along the length direction of the flange. The main purpose of this design is to reduce the contact area between the flange and the roller. By reducing the contact area, friction and wear can be reduced, thereby extending the service life of the roller and flange. At the same time, another important function is to reduce the overall weight of the flange. Under the premise of ensuring structural strength, the overall weight can be reduced by reducing the use of materials. The groove design also helps to prevent oil scraping. Lubricating oil is used to reduce the friction between the rolling element and the raceway. If the flange is in direct contact with the lubricating oil, the lubricating oil may be scraped away, resulting in insufficient lubricating oil in other pockets. The groove design can reduce the direct contact area between the flange and the lubricating oil, thereby preventing the occurrence of oil scraping.

[0046] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0047] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A thrust assembly bearing cage, characterized in that: The invention comprises a first retaining frame body and a second retaining frame body which are coaxially arranged, wherein the first retaining frame body and the second retaining frame body both comprise an inner ring and an outer ring, a window beam connecting the inner ring and the outer ring is arranged between the two, a plurality of window beams are arranged at intervals in the circumferential direction, and window holes are formed between adjacent window beams, and relative joint surfaces of the first retaining frame body and the second retaining frame body are provided with convex points, concave holes and oil storage grooves, the first retaining frame body and the second retaining frame body are connected as a whole through the convex points and the concave holes, and the relative oil storage grooves form an oil storage space, and the lubricating oil in the oil storage space can enter the window holes and be distributed between the rolling element and the retaining frame, thereby reducing friction and wear, reducing heat generation, and improving the service life and load-bearing capacity of the bearing.

2. The thrust assembly bearing retainer according to claim 1, characterized in that: The convex points and the concave holes are arranged at intervals on the window beam, and the convex points of the first retaining frame body / the second retaining frame body are connected to the concave holes of the second retaining frame body / the first retaining frame body.

3. The thrust assembly bearing retainer according to claim 1, characterized in that: The oil storage tank is arranged on the window beam, and a support portion is arranged in the oil storage tank to increase the contact surface.

4. The thrust assembly bearing retainer according to claim 1, characterized in that: The depth of the oil storage tank accounts for 1 / 5-1 / 4 of the width of the window beam.

5. The thrust assembly bearing retainer according to claim 2, characterized in that: One or more oil storage tanks are provided.

6. The thrust assembly bearing retainer according to claim 1, characterized in that: The cross section of the window beam gradually decreases from the outer ring to the inner ring.

7. The thrust assembly bearing retainer according to claim 1, characterized in that: The window beam is provided with a retaining edge extending toward the center of the window hole to wrap the roller.

8. The thrust assembly bearing retainer according to claim 7, characterized in that: The contact surface between the rib and the rolling element is an arcuate surface adapted to the rolling element.

9. The thrust assembly bearing retainer according to claim 7, characterized in that: The rib is provided with a rib groove, and a plurality of rib grooves are arranged along the length direction of the rib.

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