CN220378704U - Self-aligning bearing retainer capable of preventing roller from falling off - Google Patents

Abstract

The utility model discloses a self-aligning bearing retainer capable of preventing rollers from falling off, and belongs to the field of bearing retainers. The utility model adopts the technical scheme that the aligning bearing retainer for preventing the roller from falling comprises a retainer main body and pockets circumferentially distributed along the retainer main body, wherein bearing rollers are arranged in the pockets, annular extending parts which extend inwards are arranged at any end face of the retainer main body, supporting parts which are the same in number as the pockets and propped against round end faces of the bearing rollers are distributed on the annular extending parts, and supporting mechanisms for providing supporting points for the two round end faces of the bearing rollers are arranged on inner walls of two sides, adjacent to the two round end faces of the bearing rollers, of the pockets; the utility model is convenient for the bearing roller to penetrate to the inner side of the retainer main body to provide a supporting surface by the arrangement of the extension part, and further limits and supports the bearing roller so as to prevent the bearing roller from falling from the pocket, and simultaneously improve the stability of the rotation posture of the bearing roller.

Description

Self-aligning bearing retainer capable of preventing roller from falling off

Technical Field

The utility model belongs to the technical field of bearing retainers, and particularly relates to a self-aligning bearing retainer capable of preventing rollers from falling off.

Background

Bearing cage means a bearing part which partly encloses all or part of the rolling elements and moves therewith for isolating the rolling elements and usually also guiding the rolling elements and keeping them in the bearing, which cage is subjected to great centrifugal forces, impacts and vibrations during operation, in particular when the load is complex and rotates at high speed, and there is great sliding friction between the cage and the rolling elements and a great amount of heat is generated, as a result of which the cage malfunctions and in severe cases burns and breaks.

The existing aligning bearing retainer only limits the rolling bodies through the pockets, has a single structure, causes larger fit clearance between the rolling bodies and the pockets, not only easily causes the rolling bodies to drop from the retainer, but also causes unstable rolling posture of the rolling bodies, and has larger vibration amplitude, larger friction force between the rolling bodies and the pockets, and influences the service lives of the retainer and the rolling bodies.

Disclosure of Invention

The present utility model provides a self-aligning bearing cage that prevents roller drop-off to address at least one of the above-mentioned technical problems.

The technical scheme adopted by the utility model is as follows:

the utility model provides a prevent aligning bearing holder that roller drops, includes the holder main part and follows the pocket hole that holder main part circumference was arranged, be equipped with the bearing in the pocket hole and roll, arbitrary terminal surface of holder main part is equipped with the annular extension portion of inwards extending, the supporting part the same, offset with the bearing round end face of pocket hole quantity has been arranged on the annular extension portion, be equipped with the supporting mechanism who is used for providing the fulcrum for two round end faces of bearing on the both sides inner wall that pocket hole and bearing roll two round end faces are adjacent.

Preferably, the support part is a hemispherical convex structure.

Preferably, the supporting mechanism comprises a first locking point and a second locking point, and the first locking point and the second locking point are respectively arranged on inner walls of two sides of the pocket hole adjacent to two round end faces of the bearing roller.

Preferably, the first locking point adopts a strip flange structure, the first locking point is located in the middle of the inner wall of the pocket hole, and the vertex of the first locking point and the vertex of the supporting portion are located on the same plane.

Preferably, the second locking points adopt a convex block structure, the end face of the convex block structure is an arc-shaped surface, two groups of second locking points are arranged, and the two groups of second locking points are symmetrically arranged.

Preferably, two side edges of the pocket parallel to the length direction of the bearing roller are provided with supporting inclined planes, and the supporting inclined planes are provided with supporting tips which are propped against the side wall of the bearing roller.

Preferably, a groove is formed in the round end face, close to the second locking point, of the bearing roller, and two groups of side walls of the second locking point are abutted against the inner wall of the groove.

Preferably, an annular groove is arranged on one side of the bearing roller, which is close to the supporting part, and the annular groove is in sliding fit with the supporting part.

Preferably, the extension part and the retainer body are integrally designed, and the thickness of the extension part gradually increases from one side close to the retainer body to one side far away from the retainer body, so that the upper end surface of the extension part is an upward warping inclined surface.

Preferably, the second locking points are in a strip-shaped flange structure, and the two groups of second locking points are symmetrically arranged about the center of the bearing roller.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. in this application, after the bearing rolls and installs in the pocket, supporting mechanism's fulcrum offsets with two circular terminal surfaces of bearing roll to carry out spacingly to the bearing roll, reduce the clearance that moves between bearing roll and the pocket, and then reduce the bearing roll and rotate the stability of gesture in the pocket, reduce the vibration range of bearing roll rotation in-process.

The bearing roller that is convenient for run through to the inboard part of holder main part provides the supporting surface through the setting of extension to the bearing roller carries out further spacing and supports to prevent that the bearing roller from coming off in the pocket hole, improve the stability of bearing roller rotation gesture simultaneously.

The support part is arranged to enable the extension part to be provided with a fulcrum corresponding to the rolling bearing in each group of pocket, after the rolling bearing is arranged in the pocket, the support part is propped against the round end face of the rolling bearing, the contact area of the rolling bearing and the extension part is reduced, friction between the rolling bearing and the extension part is further reduced, noise is reduced, the abrasion speed of the rolling bearing and the extension part is slowed down, a certain fit gap exists between the inner wall of the pocket and the round end face of the rolling bearing due to the arrangement of the support mechanism and the support part, and due to the existence of the fit gap, a worker is convenient to add lubricating oil into a gap between the rolling bearing and the pocket.

2. As a preferred embodiment of the utility model, the supporting part is of a hemispherical convex structure, the structural design can effectively reduce the contact area between the supporting part and the bearing round end surface and effectively reduce friction between the supporting part and the bearing round end surface, and the structural design ensures that the supporting part has the characteristics of high strength and difficult deformation, can ensure the stability of the bearing round rotating posture and the service life of the retainer main body.

3. As a preferred embodiment of the utility model, the first lock point and the second lock point are propped against the round end surfaces at two sides of the bearing roller, so that the axial movement gap of the bearing roller is reduced, the vibration amplitude in the rotation process of the bearing roller is reduced, the contact area between the round end surfaces of the bearing roller and the inner wall of the pocket hole can be effectively reduced by the arrangement of the first lock point and the second lock point, the friction force between the bearing roller and the pocket hole is further reduced, the performance of the bearing is improved, the service life of the bearing roller and the retainer main body is prolonged, on the other hand, the structural strength of the retainer main body can be improved by the arrangement of the first lock point and the second lock point, the service life of the retainer main body is further prolonged, a certain gap is formed between the pocket hole and the bearing roller by the arrangement of the first lock point and the second lock point, the lubricating oil is conveniently filled into the gap by workers, and oil stains in the gap are also conveniently cleaned and maintained.

4. As a preferred embodiment of the utility model, the first locking point is of a strip-shaped flange structure, which is beneficial to further increasing the stability of the bearing roller, on the other hand, the strip-shaped flange structure can increase the structural strength of the pocket hole, thereby improving the structural degree of the retainer main body, prolonging the service life of the retainer main body, so that the contact surface between the first locking point and the bearing roller is reduced, and further the friction resistance between the first locking point and the bearing roller is reduced, the first locking point is positioned on the central axis of the pocket hole, so that the first locking point can support the center of the round end surface of the bearing roller, the stability of the support is improved, the stability in the bearing roller rotating process is further ensured, and the vertex of the first locking point and the vertex of the supporting part are positioned on the same plane, thereby ensuring the stability of the bearing roller rotating posture.

5. As a preferred embodiment of the utility model, the second locking points adopt a convex block structure, the end surface of the convex block structure is an arc surface, two groups of the second locking points are symmetrically arranged, the convex block structure can form point support with the bearing roller, and the contact surface of the convex block structure and the bearing roller is smaller, so that the second locking points can play a role in supporting fibers of the bearing roller, can effectively reduce friction resistance between the second locking points and the bearing roller, and reduce noise generated by friction.

The bearing roller is provided with a groove on the round end face close to the second locking point, two groups of side walls of the second locking point are propped against the inner wall of the groove, vibration in the bearing roller rotating process is further reduced through matching of the groove and the second locking point, the bearing roller is further limited, and the bearing roller is further prevented from falling from the pocket.

6. As a preferred embodiment of the utility model, two sides of the pocket parallel to the length direction of the bearing roller are provided with supporting inclined planes, the supporting inclined planes are provided with supporting tips propped against the side wall of the bearing roller, the contact area between the side wall of the bearing roller and the inner wall of the pocket is conveniently reduced by the arrangement of the supporting tips, the friction resistance between the side wall of the bearing roller and the inner wall of the pocket is further reduced, the abrasion speed of the bearing roller and the inner wall of the pocket is slowed down, the service life of the bearing roller is prolonged, and mounting holes gradually shrinking from the inner side of the retainer body to the outer side of the retainer body are formed between the two sides of the pocket parallel to the length direction of the bearing roller, so that the bearing roller is conveniently mounted from the inner side of the retainer body.

7. As a preferable implementation mode of the utility model, one side of the bearing roller, which is close to the supporting part, is provided with an annular groove, the annular groove is in sliding fit with the supporting part, the annular groove is arranged to be convenient for being matched with the supporting part to form limit, and the stability of the rolling gesture of the bearing is further improved.

Drawings

FIG. 1 is a schematic diagram of a specific embodiment of the present utility model;

FIG. 2 is a second schematic structural view of an embodiment of the present utility model;

FIG. 3 is an enlarged view of portion A of FIG. 1 in accordance with the present utility model;

fig. 4 is an enlarged view of portion B of fig. 2 in accordance with the present utility model.

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

In the drawings:

1. a holder body; 2. a pocket; 201. a first lock point; 202. a second lock point; 203. a support slope; 3. an extension; 301. a support part; 4. a bearing roller; 401. a groove; 402. an annular groove.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the descriptions of the terms "implementation," "embodiment," "one embodiment," "example," or "particular example" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1-4, a self-aligning bearing retainer for preventing rollers from falling off comprises a retainer main body 1 and pockets 2 circumferentially distributed along the retainer main body 1, wherein bearing rollers 4 are arranged in the pockets 2, annular extending parts 3 extending inwards are arranged at any end face of the retainer main body 1, supporting parts 301 which are the same in number as the pockets 2 and are propped against the round end faces of the bearing rollers 4 are distributed on the annular extending parts 3, and supporting mechanisms for providing supporting points for the two round end faces of the bearing rollers 4 are arranged on inner walls of two sides, adjacent to the two round end faces of the bearing rollers 4, of the pockets 2.

It can be understood by those skilled in the art that the bearing roller 4 is installed in the pocket hole 2, after all the pocket holes 2 on the retainer main body 1 are all provided with the bearing roller 4, the inner ring and the outer ring of the bearing are respectively sleeved on the inner side and the outer side of the retainer main body 1, so that the assembly of the whole bearing can be completed, the stability of the posture of the bearing roller 4 can be ensured by the arrangement of the retainer main body 1 and the pocket hole 2, the vibration of the rotation process of the bearing roller 4 is reduced, and the stability of the performance of the bearing is improved so as to prolong the service life.

After the bearing roller 4 is arranged in the pocket 2, the supporting point of the supporting mechanism abuts against two circular end faces of the bearing roller 4, so that the bearing roller 4 is limited, the movable gap between the bearing roller 4 and the pocket 2 is reduced, the stability of the rotating gesture of the bearing roller 4 in the pocket 2 is further reduced, the vibration amplitude of the bearing roller 4 in the rotating process is reduced, the bearing roller 4 is conveniently penetrated to the inner side of the retainer main body 1 through the arrangement, the supporting surface is provided for the bearing roller 4, the bearing roller 4 is further limited and supported, the bearing roller 4 is prevented from falling from the pocket 2, the stability of the rotating gesture of the bearing roller 4 is improved, the supporting point corresponding to the rotating bearing roller 4 in each group of pocket 2 is arranged on the extending part 3 through the arrangement of the supporting part 301, after the bearing roller 4 is arranged in the pocket 2, the supporting part 301 abuts against the circular end faces of the bearing roller 4, the contact area between the bearing roller 4 and the extending part 3 is reduced, the friction between the bearing roller 4 and the extending part is further reduced, the noise generation is reduced, the abrasion speed of the bearing roller 4 and the extending part 3 is slowed down, the bearing roller 4 is conveniently matched with the bearing roller 4 through the arrangement of the supporting mechanism and the supporting part 301, and the inner wall of the bearing roller 4 in the pocket 2 is matched with the gap between the bearing roller 4 and the pocket 2 due to the fact that the gap is matched with the bearing roller 4 in the gap 2 through the gap between the supporting part and the bearing roller 4 and the gap 2.

As a preferred example of the supporting portion 301, referring to fig. 1 to 4, the supporting portion 301 is in a hemispherical convex structure, and the structural design can effectively reduce the contact area between the supporting portion 301 and the circular end surface of the bearing roller 4, and effectively reduce friction between the supporting portion 301 and the circular end surface of the bearing roller 4.

As a specific embodiment of the supporting mechanism, according to fig. 1-4, the supporting mechanism comprises a first locking point 201 and a second locking point 202, wherein the first locking point 201 and the second locking point 202 are respectively arranged on two inner walls of the pocket 2 adjacent to two circular end surfaces of the bearing roller 4.

The first lock point 201 and the second lock point 202 are propped against the round end surfaces on two sides of the bearing roller 4, the bearing roller 4 is limited, the axial movable gap of the bearing roller 4 is reduced, the vibration amplitude in the rotation process of the bearing roller 4 is reduced, the contact area between the round end surfaces of the bearing roller 4 and the inner wall of the pocket 2 can be effectively reduced by the arrangement of the first lock point 201 and the second lock point 202, the friction force between the bearing roller 4 and the pocket 2 is further reduced, the performance of the bearing is improved, the service life of the bearing roller 4 and the retainer main body 1 is prolonged, on the other hand, the structural strength of the retainer main body 1 can be improved by the arrangement of the first lock point 201 and the second lock point 202, the retainer main body 1 is further prolonged, a certain gap is formed between the pocket 2 and the bearing roller 4 by the arrangement of the first lock point 201 and the second lock point 202, lubricating oil is conveniently filled into the gap by workers, and greasy dirt in the gap is also conveniently cleaned, and the bearing is maintained.

As a preferred example of the above embodiment, referring to fig. 1 to 4, the first locking point 201 adopts a bar-shaped flange structure, the first locking point 201 is located at the middle of the inner wall of the pocket 2, and the vertex of the first locking point 201 is on the same plane with the vertex of the supporting portion 301.

The first lock point 201 is the stability that strip flange structure is favorable to further increasing the support to the bearing roller 4, on the other hand, strip flange structure can increase the structural strength of pocket 2, and then promote the structural degree of holder main part 1, increase the life of holder main part 1, the protruding terminal surface of first lock point 201 is the cambered surface, so that reduce the contact surface of first lock point 201 and bearing roller 4, and then reduce frictional resistance between the two, first lock point 201 is located the axis of pocket 2 and makes first lock point 201 can support the center of the circular terminal surface of bearing roller 4, improve the stability of support, and then guarantee the stability of bearing roller 4 rotation in-process, the summit of first lock point 201 is in the coplanar with the summit of supporting part 301, and then guarantee the stability of bearing roller 4 rotation gesture.

The second lock point 202 adopts the lug structure, and lug structure terminal surface is the arcwall face, and second lock point 202 is equipped with two sets of, and two sets of second lock points 202 symmetry set up, and the lug structure can form the point support with bearing round 4, and both contact surfaces are less, makes second lock point 202 both play the fibre supporting role to bearing round 4 and can effectively reduce the frictional resistance between second lock point 202 and the bearing round 4 again, reduces the noise that the friction produced.

The bearing roller 4 is provided with a groove 401 on the round end surface close to the second locking point 202, the side walls of the two groups of second locking points 202 are propped against the inner wall of the groove 401, vibration in the rotation process of the bearing roller 4 is further reduced through matching of the groove 401 and the second locking point 202, the bearing roller 4 is further limited, and the bearing roller 4 is further prevented from falling from the pocket 2.

As another preferable example of the second lock points 202, the second lock points 202 are in a strip-shaped flange structure, and the two sets of second lock points 202 are symmetrically arranged about the axis of the bearing roller 4, so as to increase the contact area between the second lock points 202 and the bearing roller 4, further increase the supporting effect on the bearing roller 4, and further improve the stability of the rotation posture of the bearing roller 4.

As a preferred embodiment of the present application, referring to fig. 1-4, two sides parallel to the length direction of the pocket 2 and the bearing roller 4 are provided with supporting inclined planes 203, the supporting inclined planes 203 are provided with supporting tips which are propped against the side wall of the bearing roller 4, the contact area between the side wall of the bearing roller 4 and the inner wall of the pocket 2 is conveniently reduced through the arrangement of the supporting tips, the friction resistance between the side wall of the bearing roller 4 and the inner wall of the pocket 2 is further reduced, the wear speed of the inner wall of the bearing roller 4 and the inner wall of the pocket 2 is slowed down, the service life of the bearing roller is prolonged, and the mounting holes gradually contracted from the inner side of the retainer body 1 to the outer side of the retainer body 1 are formed between the two sides parallel to the length direction of the pocket 2 and the bearing roller 4.

As a preferred example of the bearing roller 4 in the application, referring to fig. 2 and 4, an annular groove 402 is arranged on one side of the bearing roller 4 close to the supporting portion 301, the annular groove 402 is in sliding fit with the supporting portion 301, the annular groove 402 is arranged to be convenient for being matched with the supporting portion 301 to form limit, and the stability of the rotation posture of the bearing roller 4 is further improved.

As another preferred embodiment of the present application, the extension portion 3 is integrally designed with the holder body 1, and the thickness of the extension portion 3 gradually increases from the side close to the holder body 1 to the side far from the holder body 1 so that the upper end surface of the extension portion 3 is an upward-warping slope. The whole structure of extension 3 and holder main part 1 adopts mechanical stretching technology to process, and after stretching technology processing, the thickness of one side that extension 3 kept away from holder main part 1 is greater than the thickness of one side that extension 3 is close to holder main part 1, and the up end of extension 3 is the inclined plane of upwards warping, and inclined plane angle is 5 ~ 15 to increase the holistic structural strength of holder that this application provided.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (10)

1. The utility model provides a prevent aligning bearing holder that roller drops, includes the holder main part and follows the pocket hole that holder main part circumference was arranged, be equipped with the bearing in the pocket hole and roll, its characterized in that, arbitrary terminal surface of holder main part is equipped with the annular extension portion of inwards extending, the supporting part the same with pocket hole quantity, offset with the bearing round terminal surface is arranged on the annular extension portion, be equipped with the supporting mechanism who is used for providing the fulcrum for two round terminal surfaces of bearing roll on the both sides inner wall that pocket hole and bearing roll two round terminal surfaces are adjacent.

2. The self-aligning bearing retainer for preventing roller drop off according to claim 1, wherein said supporting portion is a hemispherical convex structure.

3. The self-aligning bearing retainer for preventing roller drop off according to claim 1, wherein said supporting means comprises a first locking point and a second locking point, said first locking point and said second locking point being respectively provided on inner walls of both sides of said pocket adjacent to both circular end surfaces of said bearing roller.

4. A self-aligning bearing retainer for preventing roller drop out according to claim 3, wherein said first locking point is in a strip flange structure, said first locking point is located in the middle of the inner wall of the pocket, and the apex of said first locking point is on the same plane as the apex of the supporting portion.

5. A self-aligning bearing retainer for preventing a roller from falling off according to claim 3, wherein the second locking points adopt a bump structure, the end surface of the bump structure is an arc surface, and the second locking points are provided with two groups of second locking points which are symmetrically arranged.

6. A self-aligning bearing retainer for preventing roller drop out according to any one of claims 1 to 5, wherein both sides of said pocket parallel to the length direction of the bearing roller are provided with support slopes having support tips abutting against the side walls of the bearing roller.

7. The aligning bearing retainer for preventing roller drop off according to claim 5, wherein a groove is provided on a circular end surface of said bearing roller near the second locking point, and two sets of side walls of said second locking point are abutted against inner walls of the groove.

8. A self-aligning bearing retainer for preventing roller drop off according to claim 1, wherein the side of the bearing roller adjacent to the support portion is provided with an annular groove which is in sliding engagement with the support portion.

9. The aligning bearing cage for preventing roller drop off according to claim 8, wherein the extension portion is integrally designed with the cage body, and the thickness of the extension portion is gradually increased from a side close to the cage body to a side far from the cage body so that an upper end surface of the extension portion is formed as an upwardly warped slope.

10. A self-aligning bearing retainer for preventing roller drop out according to claim 3, wherein said second locking points are in a strip-shaped flange structure, and two sets of said second locking points are symmetrically disposed about the center of the bearing roller.