CN219733972U - Ball column double-layer composite parallel plastic bearing retainer - Google Patents

Abstract

The utility model relates to the field of bearing retainers, and discloses a ball column double-layer composite parallel plastic bearing retainer which comprises a first ring body and a second ring body, wherein the first ring body is provided with a plurality of first pockets which penetrate through the end surface and are used for accommodating first rolling bodies, and the first pockets are distributed along the circumferential direction; the second ring body is provided with a plurality of second pockets penetrating through the side wall and containing second rolling bodies, and the second pockets are distributed along the circumferential direction; the end surfaces of the first ring body and the second ring body are connected to each other. The utility model can bear loads in any directions such as radial load, axial load, composite load and the like, has small friction torque, and is suitable for working environments with high-speed rotation, low noise and low vibration.

Description

Ball column double-layer composite parallel plastic bearing retainer

Technical Field

The utility model relates to the field of bearing retainers, in particular to a ball column double-layer composite parallel plastic bearing retainer.

Background

Rolling bearings are a precision mechanical element that changes sliding friction between an operating shaft and a shaft seat into rolling friction, thereby reducing friction losses. Rolling bearings are of many types, and are classified according to the main load bearing direction of the rolling elements, and are mainly classified into radial bearings and thrust bearings.

Radial bearings are capable of bearing loads perpendicular to the shaft, thrust bearings are mainly capable of bearing loads in the axial direction, and bearings capable of bearing combined radial and axial loads mainly based on radial loads, such as tapered roller bearings, exist in the prior art, however, although the radial bearings can operate at high speed, the radial bearings are far below the speed limit which can be achieved by pure radial bearings or pure thrust bearings, and the tapered roller bearings generate relatively more heat at high speed and have lower service lives.

How to make the bearing bear the combined load and rotate at high speed is needed to be solved.

Disclosure of Invention

In order to solve one or more technical problems in the prior art, or at least to provide an advantageous choice, the utility model provides a ball-column double-layer composite parallel plastic bearing retainer, which solves the problem of how to make the bearing bear combined load and rotate at high speed.

The utility model discloses a ball column double-layer composite parallel plastic bearing retainer, which comprises the following components in the technical scheme: the first ring body is provided with a plurality of first pockets penetrating through the end face and containing first rolling bodies, and the first pockets are distributed along the circumferential direction; the second ring body is provided with a plurality of second pockets penetrating through the side wall and containing second rolling bodies, and the second pockets are distributed along the circumferential direction; the end surfaces of the first ring body and the second ring body are connected to each other.

In a preferred embodiment of the ball-and-column double-layer composite parallel plastic bearing cage, the first rolling element and/or the second rolling element are roller-type rolling elements or ball-type rolling elements.

In a preferred implementation manner of the ball-column double-layer composite parallel plastic bearing retainer, the end face of the first ring body is provided with a convex elastic abutting part, the elastic abutting part is arranged around the first pocket along the rolling direction of the first rolling body, and the elastic abutting part can be abutted with the first rolling body.

In a preferred implementation of the ball stud double-layer composite parallel plastic bearing retainer, both end faces of the first ring body are provided with elastic abutment portions.

In a preferred implementation of the ball-column double-layer composite parallel plastic bearing retainer, along the rolling direction of the first rolling bodies, the side surface of the first pocket opposite to the first rolling bodies is an arc-shaped surface, and the radial dimension of the arc-shaped surface is larger than that of the first rolling bodies.

In a preferred implementation of the ball and column double-layer composite parallel plastic bearing retainer, the end face of the first ring body is perpendicular to the side wall of the second ring body.

In a preferred implementation of the ball stud double layer composite parallel plastic bearing retainer, the inner side of the first ring body is contiguous with the inner side of the second ring body.

In a preferred implementation mode of the ball column double-layer composite parallel plastic bearing retainer, a shrinkage groove formed in the circumferential direction is formed in the end face of one end, away from the second ring body, of the first ring body.

In a preferred implementation of the ball-column double-layer composite parallel plastic bearing retainer, the second rolling bodies are ball-type rolling bodies, and an opening is formed in one end, away from the first ring body, of the second pocket.

In a preferred embodiment of the ball-column double-layer composite parallel plastic bearing cage, each second pocket is respectively surrounded by two fixing claws, which have elasticity.

The utility model has the beneficial effects that:

(1) The first pocket of first ring body runs through the terminal surface setting, and the pocket of second ring body runs through the lateral wall setting, and after first ring body and second ring body were installed between the outer lane in the bearing, the outer lane can have axial restraining force to the rolling element on the first ring body in the bearing for the bearing can bear axial load, can have radial restraining force to the rolling element on the second ring body, makes the bearing can bear radial load.

(2) The forms of the first rolling element and the second rolling element are not particularly limited, in actual production and use, according to specific use requirements, the first rolling element and the second rolling element can both be roller type rolling elements or ball type rolling elements, and in the same way, the roller type rolling elements and the ball type rolling elements can be simultaneously arranged and are particularly positioned in the first pocket or the second pocket without limitation.

(3) The first rolling body is horizontally arranged in the first pocket, when the first rolling body rolls in the first pocket, the first rolling body rubs with the side wall of the first pocket, and because the outer surface of the first rolling body is a curved surface, when the rolling speed is high, the first rolling body intermittently moves upwards, in order to avoid the first rolling body separating from the first pocket, the elastic abutting part is arranged, the elastic abutting part protrudes out of the end face of the first ring body and surrounds the first pocket, the elastic abutting part is arranged next to the two sides of the first pocket, and the first rolling body contacts with the elastic abutting part when moving upwards in the rapid rolling process, so that the first rolling body is elastically retracted into the first pocket, and the first rolling body is prevented from separating from the pocket. Elastic abutting parts are arranged on two end faces of the first ring body, so that the structures of the first ring body and the first pocket hole are balanced, the bearing retainer is dynamically balanced during high-speed movement, double-side anti-drop is realized on the first rolling body, and the first rolling body is more stable during high-speed movement.

(4) The radial dimension of the arc-shaped surface is larger than that of the first rolling body, so that the first rolling body is not contacted with the side surface of the first pocket when in the first pocket, the first rolling body is fixed on the side surface through the elastic abutting part, the contact area between the first pocket and the first rolling body is reduced, and friction is reduced; meanwhile, in the rolling process of the first rolling bodies, the first rolling bodies are subjected to elastic force, and the positions of the first rolling bodies are provided with adjusting spaces in the first pockets, so that the first rolling bodies are buffered when being loaded, a good buffering effect is achieved, the first rolling bodies can keep good load bearing capacity, and the bearing retainer is beneficial to stable and long-acting use.

(5) The side wall that sets up first ring body terminal surface and second ring body mutually perpendicular, the medial surface of first ring body meets with the medial surface of second ring body, and simple structure, and the processing degree of difficulty of outer lane is little in the pair bearing, and first pocket runs through the terminal surface of first ring body, and the second pocket runs through the lateral wall of second ring body, when the terminal surface of first ring body is perpendicular with the lateral wall of second ring body, can realize dislocation when placing for first rolling element and second rolling element, is applicable to the form selection to first rolling element and second rolling element under the multiple scene.

(6) The uneven cooling shrinkage that can cause of holder wall thickness is different, produces the deformation easily, appears that the skew fixed size of holder pocket hole size influences the centre gripping to the rolling element that is arranged in the pocket hole, appears that the rolling element drops or blocks, and the operation is inflexible, sets up the shrink groove in order to prevent the product shrink because of the product wall thickness causes, guarantees the cooperation effect between pocket hole and the rolling element.

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 a cage according to an embodiment of the present utility model.

Fig. 2 is a front view of a holder in an embodiment of the utility model.

Fig. 3 is a top view of a holder according to an embodiment of the utility model.

Fig. 4 is a schematic cross-sectional view of a cage according to an embodiment of the present utility model after installation.

Reference numerals illustrate:

1-a retainer;

11-a first ring, 12-a second ring;

110-first pockets, 111-resilient abutments, 112-constricting channels, 113-first rolling elements;

120-second pocket, 121-opening, 122-fixed jaw, 123-second rolling element.

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 utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and 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 utility model, 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.

The scheme adopted is as follows: as shown in fig. 1-4, a ball and column double layer composite parallel plastic bearing cage, comprising: the first ring body 11 and the second ring body 12, wherein a plurality of first pockets 110 which penetrate through the end surface and accommodate the first rolling bodies 113 are formed in the first ring body 11, and the first pockets 110 are distributed along the circumferential direction; the second ring body 12 is provided with a plurality of second pockets 120 penetrating through the side wall and containing second rolling bodies 123, and the second pockets 120 are distributed along the circumferential direction; the end surfaces of the first ring body 11 and the second ring body 12 are connected to each other.

In this scheme, the terminal surface setting is run through to the first pocket 110 of first ring body 11, the pocket of second ring body 12 runs through the lateral wall setting, after the bearing is installed to first ring body 11 and second ring body 12, the bearing is inside and outside the ring can have axial restraining force to the first rolling element 113 on the first ring body 11 for the bearing can bear axial load, can have radial restraining force to the second rolling element 123 on the second ring body 12, makes the bearing can bear radial load, through the cooperation of first rolling element 113 and second rolling element 123, the bearing can bear radial load, axial load and the load of any direction such as synthetic load.

The forms of the first rolling element and the second rolling element are not particularly limited, in actual production and use, the first rolling element and the second rolling element can be roller type rolling elements according to specific use requirements, or can be ball type rolling elements, and in the same way, the roller type rolling elements and the ball type rolling elements can be arranged at the same time, and the first pocket or the second pocket which is particularly positioned for the roller type rolling elements and the ball type rolling elements is not limited, and the rolling elements and the ball type rolling elements can be selected according to specific conditions of bearing load and site operation conditions.

In one embodiment, for the second rolling element 123 located in the second pocket 120, a ball type rolling element is selected, an opening 121 is formed at one end of the second pocket 120 far away from the first ring body 11 to match with the ball type rolling element, lubricating oil or grease flows into the inner side of the second pocket 120 more easily due to the arrangement of the opening 121, the flow is better, the lubricating effect on the rolling element is guaranteed, the second pocket 120 is formed by enclosing two fixing claws 122, the fixing claws 122 have elasticity, an opening 121 is formed between the two fixing claws 122, the end face of the fixing claw 122 is a curved face and is inclined towards the second pocket 120, so that the limit of the second rolling element 123 located in the second pocket 120 is guaranteed, a certain clearance exists between the fixing claw 122 and the second rolling element 123 due to the arrangement of the curved face, the second rolling element 123 has a wider moving range in the second pocket 120, and can bear axial load and radial load.

In one embodiment, the end surface of the first ring body 11 is provided with a protruding elastic contact portion 111, the elastic contact portion 111 is provided around the first pocket 110 in the rolling direction of the first rolling element 113, and the elastic contact portion 111 can contact the first rolling element 113.

Further, the elastic abutting portion 111 and the first pocket 110 are integrally formed, the inner side surface of the elastic abutting portion 111 extends along the inner side surface of the first pocket 110, the inner side surface of the first pocket 110 and the inner side surface of the elastic abutting portion 111 are smooth concave surfaces, the top end of the elastic abutting portion 111 is inclined towards the first pocket 110, contact area with the first rolling element 113 located in the first pocket 110 can be reduced, friction is reduced, abutting with the first rolling element 113 can be guaranteed, and accordingly the first rolling element 113 is prevented from falling off.

The first rolling element 113 is horizontally placed in the first pocket 110, when the first rolling element 113 rolls in the first pocket 110, the first rolling element 113 rubs against the side wall of the first pocket 110, and because the outer surface of the first rolling element 113 is a curved surface, when the rolling speed is high, the first rolling element 113 has intermittent upward movement, in order to avoid the first rolling element 113 separating from the first pocket 110, an elastic abutting part 111 is provided, the elastic abutting part 111 protrudes from the end surface of the first ring body 11, is arranged around the first pocket 110, is adjacent to two sides of the first pocket 110, and when the first rolling element 113 moves upward in the rapid rolling process, the first rolling element 113 contacts with the elastic abutting part 111, so that the first rolling element 113 is elastically retracted into the first pocket 110, thereby preventing the first rolling element 113 from separating from the first pocket.

Further, elastic abutting portions 111 are provided on both end surfaces of the first ring body 11, so that the structures of the first ring body 11 and the first pocket 110 are balanced, the bearing retainer 1 is dynamically balanced during high-speed movement, and double-sided anti-drop is realized for the first rolling bodies 113, so that the first rolling bodies 113 are more stable during high-speed movement.

In one embodiment, along the rolling direction of the first rolling element 113, the side surface of the first pocket 110 opposite to the first rolling element 113 is an arc surface, and if the radial dimension of the arc surface is larger than that of the first rolling element 113, the first rolling element 113 is not contacted with the side surface of the first pocket 110 when in the first pocket 110, the fixation of the first rolling element 113 on the side surface is realized through the elastic abutting part 111, so that the contact area between the first pocket 110 and the first rolling element 113 is reduced, and the friction is reduced; meanwhile, in the rolling process of the first rolling bodies 113, the first rolling bodies 113 are subjected to elastic force, and an adjusting space is formed in the first pocket 110 for adjusting the positions of the first rolling bodies 113, so that the first rolling bodies 113 are buffered when being loaded, a good buffering effect is achieved, the first rolling bodies 113 can keep good load bearing capacity, and the bearing retainer 1 is beneficial to stable and long-acting use.

In one embodiment, the end face of the first ring body 11 is perpendicular to the side wall of the second ring body 12, the inner side face of the first ring body 11 is connected with the inner side face of the second ring body 12, the structure is simple, the processing difficulty of the inner ring and the outer ring of the bearing is small, the first pocket 110 penetrates through the end face of the first ring body 11, the second pocket 120 penetrates through the side wall of the second ring body 12, when the end face of the first ring body 11 is perpendicular to the side wall of the second ring body 12, dislocation can be achieved when the first rolling body 113 and the second rolling body 123 are placed, and the method is suitable for form selection of the first rolling body 113 and the second rolling body 123 under various scenes.

In one embodiment, the end face of the end, far away from the second ring body 12, of the first ring body 11 is provided with a shrinkage groove 112 formed along the circumferential direction, the shrinkage rate of cooling is different in the injection molding process when the wall thickness of the retainer 1 is thick, deformation is easy to occur, the size of the pocket of the retainer 1 deviates from a preset size, the clamping of the rolling bodies in the pocket is affected, the rolling bodies fall or are blocked, the rolling bodies are inflexible to operate, the shrinkage groove 112 is arranged to prevent the shrinkage of the product caused by the wall thickness of the product, and the matching effect between the pocket and the rolling bodies is effectively ensured.

The technical solution protected by the present utility model is not limited to the above embodiments, and it should be noted that, the combination of the technical solution of any one embodiment with the technical solution of the other embodiment or embodiments is within the scope of the present utility model. While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (10)

1. A ball stud double layer composite parallel plastic bearing cage, comprising: the first ring body is provided with a plurality of first pockets penetrating through the end face and containing first rolling bodies, and the first pockets are distributed along the circumferential direction; the second ring body is provided with a plurality of second pockets penetrating through the side wall and containing second rolling bodies, and the second pockets are distributed along the circumferential direction; the end surfaces of the first ring body and the second ring body are connected with each other.

2. The ball and column double-layer composite parallel plastic bearing cage according to claim 1, wherein the first rolling element and/or the second rolling element is a roller type rolling element or a ball type rolling element.

3. The ball and column double-layer composite parallel plastic bearing retainer according to claim 1, wherein the end face of the first ring body is provided with a convex elastic abutting portion, the elastic abutting portion is arranged around the first pocket along the rolling direction of the first rolling body, and the elastic abutting portion can abut against the first rolling body.

4. A ball and column double-layer composite parallel plastic bearing retainer according to claim 3, wherein the elastic abutment portions are provided on both end surfaces of the first ring body.

5. A ball and column double-layer composite parallel plastic bearing cage according to claim 3, wherein the side of the first pocket opposite to the first rolling element is an arcuate surface in the rolling direction of the first rolling element, the arcuate surface having a radial dimension greater than the first rolling element.

6. The ball stud bi-layer composite parallel plastic bearing cage of claim 1 wherein the end face of the first ring body is perpendicular to the side wall of the second ring body.

7. The ball stud bi-layer composite parallel plastic bearing retainer of claim 6 wherein said first ring body inner side meets said second ring body inner side.

8. The ball and column double-layer composite parallel plastic bearing retainer according to claim 1, wherein the end surface of one end of the first ring body far away from the second ring body is provided with a shrinkage groove opened along the circumferential direction.

9. The ball and column double-layer composite parallel plastic bearing retainer of claim 1, wherein the second rolling bodies are ball type rolling bodies, and an opening is formed in one end of the second pocket, which is far away from the first ring body.

10. The ball and column double-layer composite parallel plastic bearing retainer of claim 9, wherein each of said second pockets is defined by two respective retaining claws, said retaining claws having elasticity.