CN220505581U - Conveniently assembled high-speed ball injection molding bearing retainer - Google Patents

Abstract

The application discloses a convenient assembled high-speed ball injection bearing retainer, which comprises a first split body and a second split body which can be mutually spliced; the first split body and the second split body both comprise a seat ring, a plurality of groups of pocket claws which are bent in opposite directions extend from the end surface of the seat ring along the axial direction, each group of pocket claws comprises a long claw and a short claw, and the extending length of the long claw is longer than that of the short claw; the long claw and the short claw of the first split can be spliced with the short claw and the long claw of the second split respectively and enclose a pocket groove for accommodating the bearing balls together; the end face of the seat ring is provided with a through weight-reducing groove, and the weight-reducing groove is positioned between every two adjacent groups of pocket claws. The junction of the first components of a whole that can function independently and the second components of a whole that can function independently of assembled bearing holder of this application is difficult for deformation, and the terminal surface of the seat insert of first components of a whole that can function independently and the second components of a whole that can function independently is opened there is the weight reduction groove that link up, and the weight reduction groove can alleviate the weight of bearing holder to can form the passageway that lubricating oil circulated, will subtract the weight groove setting between every group pocket hole claw of adjacent, can avoid influencing the structural strength of pocket hole claw.

Description

Conveniently assembled high-speed ball injection molding bearing retainer

Technical Field

The utility model relates to the technical field of bearing retainers, in particular to a conveniently assembled high-speed ball injection molding bearing retainer.

Background

The high-speed deep groove ball bearing retainer is the most representative of the bearing retainers, can bear loads in any direction such as radial load, axial load, composite load and the like, has small friction torque and very wide application, and is one of the bearings most suitable for high-speed rotation and low-vibration application.

In order to enable the rolling bodies to be installed in the conventional bearing retainer, the opening on one side of the retainer pocket is usually arranged to be larger, so that the rolling bodies are deflected to the side with larger opening when the bearing runs at high speed, abrasion between the rolling bodies and the bearing retainer is larger, bad vibration and noise can be generated, the bearing is heated seriously, and the service life is influenced.

At present, an assembled bearing retainer is formed, so that pockets are kept coherent, openings on two sides are the same, however, the connecting surface of the existing assembled bearing retainer is usually arranged along the radial surface of the bearing retainer, and when the bearing retainer and a rolling body rotate at high speed, the connecting surface is easy to deform due to concentrated centrifugal force, the existing assembled bearing retainer is heavy, and the flowing property of lubricating oil is poor.

Therefore, there is an urgent need for an assembled bearing retainer that is less likely to deform at the joint, is light in weight, and has good lubricating oil circulation.

Disclosure of Invention

In order to solve the technical problems of difficult deformation, light weight and good lubricating oil circulation of the joint of an assembled bearing retainer, the utility model aims to provide a convenient assembled high-speed ball injection molding bearing retainer, which divides the bearing retainer into a first split body and a second split body, on one hand, the first split body and the second split body are assembled in a butt joint way along the axial direction, the first split body and the second split body are provided with pockets Kong Zhao, the pockets Kong Zhao of the first split body and pocket claws of the second split body can enclose a pocket groove for accommodating a bearing rolling body, the pocket claws of the first split body and the second split body are of a short and long structure which can be complemented, so that the joint surfaces of the first split body and the second split body are staggered, the joint of the first split body and the second split body is more stable, and the phenomenon of deformation caused by stress concentration is avoided, therefore, the joint of the first split body and the second split body of the assembled bearing retainer of the utility model is difficult to deform; on the other hand, the end surfaces of the seat rings of the first split body and the second split body are provided with through weight reducing grooves, the weight of the bearing retainer can be reduced by the weight reducing grooves, and a channel for lubricating oil to circulate can be formed.

In order to achieve the above purpose, the present application adopts the following technical solutions:

a convenient assembled high-speed ball injection bearing retainer comprises a first split body and a second split body which can be mutually spliced; the first split body and the second split body both comprise a seat ring, a plurality of groups of pocket claws which are bent in opposite directions extend from the end surface of the seat ring along the axial direction, each group of pocket claws comprises a long claw and a short claw, and the extension length of the long claw is longer than that of the short claw; the long claw and the short claw of the first split body can be spliced with the short claw and the long claw of the second split body respectively and form a pocket groove for accommodating bearing balls together; the end face of the seat ring is provided with a through weight-reducing groove, and the weight-reducing groove is positioned between every two adjacent pocket claws.

Therefore, on one hand, each group of pocket claws comprises a long claw and a short claw, the extending length of the long claw is long and short, the long claw of the first split is spliced with the short claw of the second split, the short claw of the corresponding first split can be spliced with the long claw of the second split, and accordingly, the connecting parts of the pocket claws of the first split and the second split are staggered, after the first split and the second split are spliced and assembled along the axial direction, the connecting surfaces of the first split and the second split are distributed at two positions, deformation caused by stress concentration is avoided, and therefore the connecting parts of the first split and the second split of the assembled bearing retainer are not easy to deform.

On the other hand, the end face of the seat ring of the first split body and the end face of the seat ring of the second split body are provided with through weight reduction grooves, the weight of the bearing retainer can be reduced by the weight reduction grooves, a channel for lubricating oil to circulate can be formed, and the weight reduction grooves are arranged between every two adjacent pocket claws, so that the influence on the structural strength of the pocket claws can be avoided.

As a preferred implementation mode of the convenient-to-assemble high-speed ball injection molding bearing retainer, one of the long claw and the short claw is far away from the outer side wall of the pocket groove and is provided with a convex strip, the other is far away from the outer side of the pocket groove and is provided with an extension part, and the extension part is provided with a groove capable of being inserted into the convex strip.

As a preferred implementation manner of the conveniently assembled high-speed ball injection bearing retainer, the long claw is abutted with the end part of the short claw, and the extension part is abutted between the inner wall of the pocket groove and the outer side wall with one of the convex strips.

As a preferred implementation of the easy-to-assemble high speed ball injection bearing cage, the long claws have the raised strips and the short claws have the extensions.

As a preferred implementation of the conveniently assembled high-speed ball injection bearing retainer, the bending directions of the long claws in the pocket claws are the same, and the bending directions of the short claws are the same.

As a preferred implementation manner of the conveniently assembled high-speed ball injection bearing retainer, in each group of pocket claws, one side of the long claw away from the pocket groove is connected with a reinforcing rib extending along the circumferential direction; the reinforcing ribs of the first split body and the reinforcing ribs of the second split body can be clamped.

As a preferred implementation mode of the convenient-to-assemble high-speed ball injection bearing retainer, in each group of pocket claws, a clamping block is arranged on one side of the reinforcing rib far away from the seat ring, and the clamping block protrudes out of the side wall of the reinforcing rib towards one side far away from the long claw; the clamping block of the first split or the second split is abutted with one side, close to the seat ring, of the second split or the first split.

As a preferred implementation of the conveniently assembled high speed ball injection molded bearing cage, the stiffener is provided with a stiffener web extending toward and connecting with the race.

As a preferred implementation of the conveniently assembled high-speed ball injection molded bearing retainer, the radial thickness of the pocket claw is smaller than that of the seat ring, and an inclined chamfer surface is arranged between the end surface of the seat ring and the radial side wall of the pocket claw.

The beneficial effects of this application lie in:

1. each group of pocket claws comprises a long claw and a short claw which extend to a length equal to a length of the pocket claw, the long claw of the first split is spliced with the short claw of the second split, and the corresponding short claw of the first split can be spliced with the long claw of the second split, so that the connecting parts of the pocket claws of the first split and the second split are staggered, and after the first split and the second split are spliced and formed along the axial direction, the connecting surfaces of the first split and the second split are distributed at two positions, and the phenomenon of deformation caused by stress concentration is avoided, so that the connecting parts of the first split and the second split of the assembled bearing retainer are not easy to deform;

2. the end surfaces of the seat rings of the first split body and the second split body are provided with through weight reduction grooves, the weight of the bearing retainer can be reduced by the weight reduction grooves, a lubricating oil circulation channel can be formed, and the weight reduction grooves are arranged between every two adjacent groups of pocket claws, so that the influence on the structural strength of the pocket claws can be avoided;

3. in each group of pocket claws, one side of the long claw far away from the pocket groove is connected with a reinforcing rib extending along the circumferential direction; the reinforcing ribs of the first split and the reinforcing ribs of the second split can be clamped, so that the reinforcing ribs of the first split and the reinforcing ribs of the second split are elastic structures which can be clamped mutually, and the reinforcing ribs can strengthen connection between the first split and the second split.

Drawings

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:

FIG. 1 is a schematic perspective view of an assembled first split and second split of an exemplary embodiment of a convenient assembly type high speed ball injection molded bearing retainer according to the present application;

FIG. 2 is a schematic perspective view of a first split in an exemplary embodiment of a conveniently assembled high speed ball injection molded bearing retainer according to the present application;

fig. 3 is a schematic perspective view of a second split in an exemplary embodiment of a conveniently assembled high speed ball injection molded bearing retainer according to the present application.

Reference numerals illustrate:

1. a first split;

2. a second split;

3. a seat ring; 31. a weight reduction groove;

4. a pocket Kong Zhao; 41. a long claw; 42. a short claw; 43. a convex strip; 44. an extension; 441. a groove; 45. reinforcing ribs; 46. a clamping block; 47. reinforcing rib plates; 48. chamfer surface.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

It should be noted that 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 as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on 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.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

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; 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. However, it is noted that direct connection indicates that two connected bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. 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, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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. 1-3, the present application proposes a conveniently assembled high speed ball injection molded bearing cage comprising a first split 1 and a second split 2 that can be spliced to each other; the first split body 1 and the second split body 2 both comprise a seat ring 3, a plurality of groups of pocket claws 4 which are bent towards each other extend from the end surface of the seat ring 3 along the axial direction, each group of pocket claws 4 comprises a long claw 41 and a short claw 42, and the extending length of the long claw 41 is longer than that of the short claw 42; the long claw 41 and the short claw 42 of the first split body 1 can be spliced with the short claw 42 and the long claw 41 of the second split body 2 respectively and enclose a pocket groove for accommodating bearing balls together; the end face of the seat ring 3 is provided with a through weight reducing groove 31, and the weight reducing groove 31 is positioned between every two adjacent groups of pocket claws 4.

On the other hand, each group of pocket claws 4 includes a long claw 41 and a short claw 42 with a length equal to a length of the pocket claw, the long claw 41 of the first split body 1 is spliced with the short claw 42 of the second split body 2, and the short claw 42 of the corresponding first split body 1 can be spliced with the long claw 41 of the second split body 2, so that the connection positions of the pocket claws 4 of the first split body 1 and the second split body 2 are staggered, and after the first split body 1 and the second split body 2 are spliced and formed along the axial direction, the connection surfaces of the first split body 1 and the second split body 2 are distributed at two positions, so that the phenomenon of deformation caused by stress concentration is avoided, and therefore, the connection positions of the first split body 1 and the second split body 2 of the assembled bearing retainer of the embodiment are not easy to deform.

On the other hand, the end surfaces of the seat rings 3 of the first and second split bodies 1 and 2 are provided with through weight reduction grooves 31, and the weight reduction grooves 31 can reduce the weight of the bearing cage, and can form a channel through which lubricating oil flows, and the weight reduction grooves 31 are provided between each adjacent group of pocket claws 4, so that the influence on the structural strength of the pocket claws 4 can be avoided.

In this embodiment, the long claw 41 of the first split body 1 and the short claw 42 of the second split body 2 are spliced, and the short claw 42 of the first split body 1 and the long claw 41 of the second split body 2 are spliced, so that the first split body 1 and the second split body 2 can be assembled into the bearing retainer, and the assembly is convenient and quick.

In a preferred embodiment of the conveniently assembled high-speed ball injection bearing retainer, one of the long claw 41 and the short claw 42 is provided with a convex strip 43 on the outer side wall far away from the pocket groove, the other is provided with an extension part 44 on the outer side far away from the pocket groove, and the extension part 44 is provided with a groove 441 capable of being inserted into the convex strip 43. Therefore, the convex strips 43 can be spliced by inserting into the grooves 441, and the splicing is convenient and quick.

In a preferred embodiment of a conveniently assembled high speed ball injection molded bearing retainer, the long pawl 41 abuts the end of the short pawl 42 such that the extension 44 abuts between the inner wall facing the pocket groove and the outer sidewall of one of the ribs 43. In this way, the long claw 41 and the short claw 42 can be abutted against each other, and the connecting surfaces can be abutted together, so that the structure of the pocket hole is stronger after the first split body 1 and the second split body 2 are assembled.

In a preferred embodiment of a convenient assembled high speed ball injection molded bearing cage, the long pawl 41 has a rib 43 and the short pawl 42 has an extension 44. The long claws 41 have a longer extension length, and the short claws 42 have a shorter extension length, and the short claws 42 have a higher structural strength than the long claws 41, so that in each group of pocket claws 4, the long claws 41 are located at positions farther inward than the short claws 42, so that the short claws 42 can support the long claws 41 in the radial direction of the pocket, so that the pocket structure is stronger.

In a preferred embodiment of the easy-to-assemble high speed ball injection bearing cage, the long claws 41 in each pocket claw 4 are bent in the same direction, and the short claws 42 are bent in the same direction. Therefore, the structural strength of the bearing retainer is balanced, the stress is more uniform, and the die is more convenient to manufacture.

In a preferred embodiment of the conveniently assembled high speed ball injection molded bearing cage, in each set of pocket claws 4, the side of the long claw 41 away from the pocket groove is connected with a reinforcing rib 45 extending along the circumferential direction; the reinforcing ribs 45 of the first split 1 and the reinforcing ribs 45 of the second split 2 can be engaged with each other. In this way, the reinforcing ribs 45 of the first and second split bodies 1 and 2 are elastic structures that can be engaged with each other, and the reinforcing ribs 45 can strengthen the connection between the first and second split bodies 1 and 2.

In a preferred embodiment of the convenient assembly type high-speed ball injection bearing retainer, in each group of pocket claws 4, a clamping block 46 is arranged on one side of the reinforcing rib 45 away from the seat ring 3, and the clamping block 46 protrudes out of the side wall of the reinforcing rib 45 towards one side away from the long claw 41; the engagement piece 46 of the first split 1 or the second split 2 is in contact with the second split 2 or the side of the first split 1 close to the seat ring 3. With this, the joint piece 46 is elastic structure, when first components of a whole that can function independently 1 and second components of a whole that can function independently 2 splice along the axial direction of seat circle 3, the joint piece 46 of first components of a whole that can function independently 1 can be close to the one side butt of seat circle 3 with the strengthening rib 45 of second components of a whole that can function independently 2, the joint piece 46 of second components of a whole that can function independently 2 can be close to one side butt of seat circle 3 with the strengthening rib 45 of first components of a whole that can function independently 1 to this is in the same place with the strengthening rib 45 joint lock of first components of a whole that can function independently 1 and second components of a whole that can function independently 2, improves structural strength, and joint process convenient and fast.

In a preferred embodiment of a convenient assembled high speed ball injection molded bearing cage, the stiffener 45 is provided with a stiffening rib 47 extending toward the race 3 and connected to the race 3. In this way, the reinforcing ribs 47 can support the reinforcing ribs 45 in the axial direction of the race 3, and strengthen the structural strength of the bearing retainer.

In a preferred embodiment of a convenient assembled high speed ball injection molded bearing cage, the radial thickness of the pocket claw 4 is less than the radial thickness of the seat ring 3, and an inclined chamfer 48 is provided between the end surface of the seat ring 3 and the radial side wall of the pocket claw 4. This can reduce the thickness of the pocket claw 4 and reduce the friction area between the pocket claw 4 and the rolling element of the bearing.

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. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method 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 (9)

1. The convenient assembled high-speed ball injection bearing retainer is characterized by comprising a first split body and a second split body which can be mutually spliced; the first split body and the second split body both comprise a seat ring, a plurality of groups of pocket claws which are bent in opposite directions extend from the end surface of the seat ring along the axial direction, each group of pocket claws comprises a long claw and a short claw, and the extension length of the long claw is longer than that of the short claw; the long claw and the short claw of the first split body can be spliced with the short claw and the long claw of the second split body respectively and form a pocket groove for accommodating bearing balls together; the end face of the seat ring is provided with a through weight-reducing groove, and the weight-reducing groove is positioned between every two adjacent pocket claws.

2. The conveniently assembled high-speed ball injection molded bearing retainer according to claim 1, wherein one of the long claw and the short claw is provided with a convex strip on an outer side wall away from the pocket groove, and the other is provided with an extension part on an outer side away from the pocket groove, and the extension part is provided with a groove into which the convex strip can be inserted.

3. The easy-to-assemble high speed ball injection molded bearing retainer of claim 2, wherein said long pawl abuts an end of said short pawl, and said extension abuts between an inner wall of said pocket groove and an outer sidewall of one of said ribs.

4. A conveniently assembled high speed ball injection molded bearing retainer according to claim 3 wherein said long claws have said ribs and said short claws have said extensions.

5. The conveniently assembled high speed ball injection molded bearing retainer of claim 1, wherein the long claws of each pocket claw have the same bending direction and the short claws have the same bending direction.

6. The conveniently assembled high speed ball injection molded bearing retainer according to claim 5, wherein in each group of the pocket claws, a side of the long claw away from the pocket groove is connected with a reinforcing rib extending along the circumferential direction; the reinforcing ribs of the first split body and the reinforcing ribs of the second split body can be clamped.

7. The conveniently assembled high-speed ball injection molded bearing retainer according to claim 6, wherein in each group of pocket claws, a clamping block is arranged on one side of the reinforcing rib away from the seat ring, and the clamping block protrudes out of the side wall of the reinforcing rib towards one side away from the long claw; the clamping block of the first split or the second split is abutted with one side, close to the seat ring, of the second split or the first split.

8. The easy-to-assemble high speed ball injection molded bearing retainer of claim 6, wherein said reinforcing ribs are provided with reinforcing ribs extending toward and connecting with said race.

9. The conveniently assembled high speed ball injection molded bearing retainer of claim 1 wherein said pocket claws have a radial thickness less than the radial thickness of said seat ring, and wherein inclined chamfer surfaces are provided between the end surfaces of said seat ring and the radial side walls of said pocket claws.