CN219510017U

CN219510017U - Entity retainer for thrust ball bearing

Info

Publication number: CN219510017U
Application number: CN202320690142.XU
Authority: CN
Inventors: 张书豪; 张风恕; 王秀华; 刘贵新; 卫广彤
Original assignee: Wafangdian Yatong Bearing Manufacturing Co ltd
Current assignee: Wafangdian Yatong Bearing Manufacturing Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-11
Anticipated expiration: 2033-03-31

Abstract

The utility model belongs to the technical field of bearing retainers, and particularly relates to a solid retainer for a thrust ball bearing, which comprises a retainer annular body, wherein ball pockets penetrating through two end faces of the retainer annular body are distributed in the circumferential direction of the retainer annular body, one end of each ball pocket is provided with a pocket bottom which is in limit fit with a spherical roller, the other end of each ball pocket is provided with an inlet, and the inlets of two adjacent ball pockets are respectively close to different end faces of the retainer annular body; the ball pocket is characterized in that an inclined guide ball loading port is formed in the pocket opening of the ball pocket, and a convex ball locking table for locking the spherical roller is arranged on one side of the guide ball loading port, which is close to the pocket bottom. The retainer is provided with the ball locking table in the ball pocket hole, so that the position and the precision of locking quantity can be effectively controlled, the ball pocket Kong Zisuo of the retainer can be ensured, the balls can be locked by manual force when the bearing is sleeved, time and labor are saved, and the bearing sleeve-sleeving efficiency is improved.

Description

Entity retainer for thrust ball bearing

Technical Field

The utility model belongs to the technical field of bearing retainers, and particularly relates to a physical retainer for a thrust ball bearing.

Background

At present, the technology of locking rollers of a thrust ball bearing retainer is always a bottleneck technology of accessory processing in the bearing field. At present, when the bearing is assembled, the cylindrical hole surface of the retainer is stamped, so that the side wall of the pocket hole forms a bulge for locking the ball. Moreover, the thrust bearing retainer must be a double-sided bore, and two positioning and embossing lock balls are required during bearing assembly. The ball locking mode not only increases the processing procedures, causes the processing cost to be increased, but also more importantly directly damages the original pocket processing precision of the retainer, and the problems of ball falling, ball clamping, ball blocking, retainer slag falling, ball scratch and the like often occur during bearing assembly. Meanwhile, the positions of the locking balls are not uniform due to point locking, the locking amount is not uniform, and the concentricity difference of the holes on the two sides is caused. The problems directly affect the rotation precision of the bearing and the dynamic balance of the bearing. Therefore, a retainer with a self-locking ball structure is needed, so that the locking ball function can be realized, and the normal operation of the bearing is ensured.

Disclosure of Invention

According to the defects of the prior art, the utility model aims to provide a linear self-locking ball structure of a retainer for a thrust ball bearing, namely, a linear locking ball table locking ball is directly processed during retainer ball pocket processing, so that the problems of ball falling, ball clamping, ball blocking, retainer slag falling, ball scratch and the like frequently occur during bearing assembly are solved, the dimensional accuracy and the position degree of the locking ball are improved, and the rotation accuracy of the bearing and the dynamic balance of the bearing are improved.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a thrust ball is entity holder for bearing, includes the annular body of holder, the annular body of holder is arranged in circumference and is run through the ball pocket hole of the both ends face of annular body of holder, the one end of each ball pocket hole has the pocket bottom of spacing cooperation with spherical roller, and the other end is the pocket mouth, and the pocket mouth of two adjacent ball pocket holes is close to the different terminal surfaces of annular body of holder respectively; the ball pocket is characterized in that an inclined guide ball loading port is formed in the pocket opening of the ball pocket, and a convex ball locking table for locking the spherical roller is arranged on one side of the guide ball loading port, which is close to the pocket bottom.

Further, one side of the ball locking table far away from the guide ball loading port is sequentially provided with an arc transition table and a serial momentum table, and the serial momentum table is connected with the pocket bottom; the guide ball loading port, the ball locking platform, the arc transition platform, the serial momentum platform and the pocket bottom are sequentially connected and form the surface of the ball pocket along the annular structure.

Further, the serial momentum stage is a straight stage.

Further, the width of the serial momentum platform is 0.5mm.

Further, the self-locking amount of the ball locking table is smaller than the diameter of the spherical roller.

Further, the self-locking amount of the ball locking table is smaller than the diameter of the spherical roller by 0.05-0.08 mm, and the width of the ball locking table is 1mm.

Further, the ball locking table is in line contact with the ball roller.

Further, the guide ball loading port is inclined towards the direction far away from the central axis of the ball pocket hole, a flaring structure is formed, and the inclination angle of the guide ball loading port is 3 degrees.

Further, the pocket bottom is of a tapered structure with gradually shrinking openings.

Further, the inflection points of the ball pocket are in smooth transition.

The beneficial effects of the utility model are as follows: the retainer is provided with the ball locking table in the ball pocket hole, so that the position and the precision of locking quantity can be effectively controlled, the ball pocket Kong Zisuo of the retainer can be ensured, the balls can be locked by manual force when the bearing is sleeved, time and labor are saved, and the bearing sleeve-sleeving efficiency is improved.

Drawings

FIG. 1 is a schematic view of a physical retainer for a thrust ball bearing according to the present utility model;

FIG. 2 is a view A-A of FIG. 1;

FIG. 3 is a rotational enlarged view at I of FIG. 2;

FIG. 4 is a perspective view showing the structure of a solid cage for a thrust ball bearing according to the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at B;

in the figure: 1. the retainer ring-shaped body comprises a retainer ring-shaped body, wherein the retainer ring-shaped body comprises a retainer ring-shaped body, a ball pocket hole, a guide ball loading opening, a ball locking table, a circular arc transition table, a serial momentum table and a pocket bottom.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1-5, a solid retainer for a thrust ball bearing comprises a retainer annular body 1, wherein ball pockets 2 penetrating through two end faces of the retainer annular body 1 are distributed on the retainer annular body 1 in the circumferential direction, one end of each ball pocket 2 is provided with a pocket bottom 7 which is in limit fit with a spherical roller, the other end is provided with an inlet, and inlets of two adjacent ball pockets are respectively close to different end faces of the retainer annular body 1; the ball pocket is characterized in that the pocket mouth of the ball pocket hole 2 is provided with an inclined guide ball loading mouth 3, the other side of the guide ball loading mouth 3 is sequentially provided with a locking ball table 4, an arc transition table 5 and a serial momentum table 6, the serial momentum table 6 is connected with a pocket bottom 7, and the pocket bottom 7 is of a gradually shrinking conical structure.

Based on the technical scheme, the ball loading position of the outer diameter of the retainer is designed to form the guide ball loading port 3 with an angle of half angle 3 degrees, so that the integral strength of the retainer is not affected, the spherical roller is loaded according to the guide ball loading port, and the spherical roller is not easy to scratch, convenient and quick.

Further, the guide ball loading port 3, the ball locking table 4, the arc transition table 5, the serial momentum table 6 and the pocket bottom 7 are sequentially connected and form the surface of the ball pocket hole along the annular structure. The corner of the inflection point which is connected among the guide ball loading port 3, the ball locking table 4, the arc transition table 5, the serial momentum table 6 and the pocket bottom 7 is smoothly transited (namely, rounded), so that the spherical roller is not scratched when being loaded into the ball pocket hole, and the spherical roller is not contacted with the pocket hole of the retainer after being loaded into the ball pocket hole, so that the spherical roller has omnibearing degree of freedom in the locking port, and the rotation precision of the bearing and the dynamic balance of the bearing are improved.

Further, the serial momentum platform 6 is a straight platform, a cylindrical surface is formed in the ball pocket 2, and the axial width of the serial momentum platform 6 is 0.5mm.

Based on the above technical scheme, it should be noted that, the serial momentum stage 6 is for giving 0.5mm serial momentum value when designing the ball locking port position, guarantee that serial momentum is moderate, adopt the circular arc transition platform 5 that the ball pocket formed to connect between the face of cylinder of serial momentum stage 6 and the ball locking stage 4 position, make the junction form smooth connection. The ball is not clamped and blocked during bearing assembly, and the noise of the bearing is not too large due to too large amount of serial momentum, so that the rotation precision of the bearing and the dynamic balance of the bearing are improved.

Further, the self-locking amount of the ball locking table 4 is smaller than the diameter size of the spherical roller by 0.05-0.08 mm, the width of the ball locking table 4 is 1mm, and an outwards convex cylindrical surface is formed in the ball pocket 2. The ball locking table 4 is in line contact with the ball roller.

Based on the above technical scheme, it should be noted that, the ball locking table 4 is a ball roller that enters the guide ball loading port 3 of the retainer, is pressed manually and lightly, enters the ball pocket by elastic deformation of the retainer, and does not fall out of the ball pocket. The design self-locking quantity is smaller than the diameter size of the spherical roller by 0.05-0.08 mm, the width is 1mm, the ball is not dropped, clamped and scratched when the bearing is assembled, and the spherical roller is easily installed. The size precision and the position precision of the lock ball are improved; and the rotation precision of the bearing and the dynamic balance of the bearing are improved.

Further, the guide ball loading port 3 is inclined in a direction far away from the central axis of the ball pocket, a flaring structure is formed, and the inclination angle of the guide ball loading port 3 is 3 degrees.

The contact surface of the retainer ball pocket 2 and the spherical roller is changed from the original point locking roller to the line locking roller, and the point contact is changed to the line contact, so that the function of stabilizing the concentric rotation of the guide roller along the axial direction is realized. And the rotation precision of the bearing is improved. In addition, the contact strength of the external light is high, the abrasion is not easy, and the processing is convenient.

The ball locking table 4 is characterized in that the linear boss is in arc transition, the ball inlet end of the boss is different from the ball locking end in angle, the ball inlet end is set at an angle of 3 degrees for facilitating ball loading, the ball locking end angle is set for avoiding burrs during machining, and the burrs during machining are caused by the fact that the burrs are formed due to the fact that the arc transition cannot be realized due to the fact that the ball locking amount is too small without setting the angle. The ball roller is easy to enter and difficult to fall out, so that the ball loading speed of the lock ball is easy to be improved, and the precision and quality of the ball falling-free ball required by customers are ensured. The linear boss of the lock ball is smooth and burr-free, so that the problem of manual burr removal is solved, and the technical difficulty that the lock point of the point lock is sharp to scratch the rolling body is also solved. The consistency and reliability of the locking ball positions of the locking ball length of the linear locking ball boss. The size precision and the position degree of the lock balls are improved, and the rotation precision of the bearing and the dynamic balance of the bearing are improved.

It should be noted that the detailed portions of the present utility model are not described in the prior art.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "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 device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore 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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically 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 mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The foregoing list is only the preferred embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.

Claims

1. A solid cage for thrust ball bearings, characterized in that: the retainer comprises a retainer annular body, wherein ball pockets penetrating through two end faces of the retainer annular body are distributed in the circumferential direction of the retainer annular body, one end of each ball pocket is provided with a pocket bottom in limit fit with a spherical roller, the other end of each ball pocket is provided with an inlet, and the inlets of two adjacent ball pockets are respectively close to different end faces of the retainer annular body; the ball pocket is characterized in that an inclined guide ball loading port is formed in the pocket opening of the ball pocket, and a convex ball locking table for locking the spherical roller is arranged on one side of the guide ball loading port, which is close to the pocket bottom.

2. The solid cage for thrust ball bearings according to claim 1, wherein: the side of the ball locking table, which is far away from the guide ball loading port, is sequentially provided with an arc transition table and a serial momentum table, and the serial momentum table is connected with the bottom of the pocket; the guide ball loading port, the ball locking platform, the arc transition platform, the serial momentum platform and the pocket bottom are sequentially connected and form the surface of the ball pocket along the annular structure.

3. The solid cage for thrust ball bearings according to claim 2, wherein: the serial momentum platform is a straight platform.

4. The solid cage for thrust ball bearings according to claim 2, wherein: the axial width of the serial momentum platform is 0.5mm.

5. The solid cage for thrust ball bearings according to claim 1, wherein: the self-locking amount of the ball locking table is smaller than the diameter of the spherical roller.

6. The solid cage for a thrust ball bearing of claim 5, wherein: the self-locking amount of the ball locking table is smaller than the diameter of the spherical roller by 0.05-0.08 mm, and the axial width of the ball locking table is 1mm.

7. The solid cage for thrust ball bearings according to claim 1, wherein: the ball locking table is in line contact with the spherical roller.

8. The solid cage for thrust ball bearings according to claim 1, wherein: the guide ball loading port is inclined towards the direction far away from the central axis of the ball pocket hole, a flaring structure is formed, and the inclination angle of the guide ball loading port is 3 degrees.

9. The solid cage for thrust ball bearings according to claim 1, wherein: the bottom of the pocket is of a tapered structure with gradually shrinking openings.

10. A solid cage for thrust ball bearings according to any one of claims 1-9, characterized in that: and each inflection point of the ball pocket is in smooth transition.