CN219159374U

CN219159374U - Universal ball joint bearing

Info

Publication number: CN219159374U
Application number: CN202223120539.XU
Authority: CN
Inventors: 刘志斌; 顾伟杰; 邵若男; 苏文文; 赵成
Original assignee: Shanghai Bearing Technology Research Institute Co ltd
Current assignee: Shanghai Bearing Technology Research Institute Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-09
Anticipated expiration: 2032-11-23

Abstract

The utility model provides a universal ball joint bearing, comprising: the bearing ball, the rod end body and the outer ring; the bearing ball is connected with a plurality of rod end bodies in a sliding fit mode, the outer sides of the rod end bodies are provided with outer rings, and the outer rings are fixedly connected with each other and limit the rod end bodies to move along the axial direction. The flexible motion in a plurality of rotational degrees of freedom can be realized, and radial and axial pulling and pressing loads in all working angles can be borne at the same time.

Description

Universal ball joint bearing

Technical Field

The utility model relates to the field of bearing structures, in particular to a universal ball joint bearing.

Background

The existing ball joint bearing can swing at multiple angles, but is limited in structural form and cannot bear radial and axial tension and compression loads at all working angles. The traditional ball joint bearing is usually extruded and assembled, the assembly form is not firm enough, and meanwhile, because the ball seat product is required to be plastically deformed by extrusion, the ball seat cannot use high-strength steel, so that the bearing capacity of the ball joint bearing is greatly reduced; and after extrusion, the ball head and the ball head seat form a whole, so that the maintenance and replacement of parts can not be performed. In order to improve the bearing capacity of the ball joint bearing at all working angles and simplify the assembly mode, a novel universal ball joint bearing needs to be designed.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a universal ball joint bearing.

According to the utility model, a universal ball joint bearing comprises: the bearing ball, the rod end body and the outer ring;

the bearing ball is connected with a plurality of rod end bodies in a sliding fit mode, the outer sides of the rod end bodies are provided with outer rings, and the outer rings are fixedly connected with each other and limit the rod end bodies to move along the axial direction.

Preferably, the rod end body is formed by an extrados connecting rod piece of an arc surface;

and the intrados of the arced surface is connected with the bearing ball and slides relative to the surface of the bearing ball.

Preferably, the outer ring is provided with a semicircular shell, the outer ring is arranged on one side of the outer cambered surface of the cambered surface and is matched with the outer cambered surface of the cambered surface in shape, and the outer cambered surface of the cambered surface slides relative to the inner side of the outer ring;

the outer ring is provided with a circular opening, and the rod piece of the rod end body extends outwards from the circular opening.

Preferably, the diameter of the arc surface is larger than the diameter of the circular opening, and the circular opening interferes with the arc surface to move out of the circular opening.

Preferably, the rod piece is connected with a sealing ring at the periphery, and the sealing ring is covered at the circular opening in a sealing way.

Preferably, the bearing balls are coated with a lubricant layer.

Preferably, a plurality of outer rings are fixedly connected through a hinged hole bolt and a matched nut.

Preferably, a gap is arranged between the arc-shaped surfaces of the adjacent rod end bodies.

Preferably, the rod has a diameter smaller than the diameter of the circular opening, the rod being allowed to oscillate within the circular opening.

Preferably, the sealing ring has a diameter greater than the diameter of the circular opening and is adapted to cover the circular opening when the lever swings to the edge of the circular opening.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The device can flexibly move in a plurality of rotational degrees of freedom, and can bear radial and axial pulling and pressing loads at all working angles.

(2) The metal material of the ball joint bearing can use high-strength bearing steel due to the advantage that extrusion assembly is not needed, when radial load is born, the inner cambered surface of the rod end body is contacted with the bearing ball, and the outer cambered surface is contacted with the inner spherical surface of the outer ring, so that the pressure of the rod end body can be greatly dispersed, and the bearing capacity of the rod end body is greatly improved;

(3) The axial pulling load which can be born by the bearing is determined by the fixed form of the two outer rings, and according to actual needs, the connection of the outer rings can be reinforced to improve the bearing capacity of the axial pulling load;

(4) According to the bearing, the sealing ring is assembled on the rod piece, so that the problems of water resistance, dust resistance, lubricant leakage resistance and the like of the bearing are solved;

(5) The bearing parts are all revolving bodies or standard parts, so that the strength is ensured, and meanwhile, the processing difficulty is reduced.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a cross-sectional view of a universal ball joint bearing;

FIG. 2 is a schematic perspective view of a universal ball joint bearing;

the figure shows:

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

Example 1

As shown in fig. 1 and 2, the present embodiment includes: the bearing ball 1, the rod end body 3 and the outer ring 4; the bearing ball 1 is connected with a plurality of rod end bodies 3 in a sliding fit manner, outer rings 4 are arranged on the outer sides of the rod end bodies 3, and the plurality of outer rings 4 are fixedly connected through hinging hole bolts 6 and nuts 5 and limit the rod end bodies 3 to move along the axial direction. A lubricant layer 2 is filled between the bearing ball 1 and the outer race 4.

The rod end body 3 is formed by connecting rod pieces with the outer cambered surface of an arc-shaped surface, the inner cambered surface of the arc-shaped surface is connected with the bearing ball 1 and slides relative to the surface of the bearing ball 1, and other parts can be connected with the rod pieces through threads. The outer ring 4 is arranged as a semicircular shell, the outer ring 4 is arranged on one side of the outer cambered surface of the cambered surface and is matched with the outer cambered surface of the cambered surface in shape, the outer cambered surface of the cambered surface slides relative to the inner side of the outer ring 4, a circular opening is formed in the outer ring 4, and a rod piece of the rod end body 3 extends outwards from the circular opening. The sealing ring 7 is connected to the member week side, and sealing ring 7 sealing cover is in circular opening part.

The diameter of the arc-shaped surface is larger than that of the circular opening, the circular opening interferes with the arc-shaped surface to move out of the circular opening, a gap is arranged between the arc-shaped surfaces of the adjacent rod end bodies 3, the diameter of the rod piece is smaller than that of the circular opening, and the rod piece is allowed to swing in the circular opening. The diameter of the sealing ring 7 is larger than the diameter of the circular opening and the sealing ring 7 covers the circular opening when the rod piece swings to the edge of the circular opening.

Example 2

Example 2 is a preferred example of example 1.

As shown in fig. 1 and 2, this embodiment is composed of a carrier ball 1, a rod end body 3, an outer ring 4, a lubricant layer 2, a seal ring 7, a reaming bolt 6, and a nut 5.

The two rod end bodies 3 are arranged on two sides of the bearing ball 1, can bear all loads except the axial tension direction of the assembly, and realize the pivoting and multidirectional swinging of the rod end bodies 3; two outer rings 4 are matched with the outer surfaces of the two rod end bodies 3, the two outer rings 4 are fixed in a mode of fastening by a reaming hole bolt 6 and a nut 5, and the bearing can bear the axial pulling load of the rod end bodies 3; a sealing ring 7 is arranged on the rod end body 3 to realize the functions of antifouling, sealing and the like of the universal ball joint bearing; the inner cavity between the carrier ball 1 and the outer ring 4 can be filled with a lubricant layer 2 or subjected to other self-lubricating surface treatments as required to achieve lubrication of the universal ball joint bearing. According to the actual working condition, the universal ball joint bearing meeting the requirements of different working loads and different swing angles can be designed.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. A universal ball joint bearing, comprising: the bearing ball (1), the rod end body (3) and the outer ring (4);

the bearing ball (1) is connected with a plurality of rod end bodies (3) in a sliding fit mode, the outer rings (4) are arranged on the outer sides of the rod end bodies (3), and the outer rings (4) are fixedly connected and limit the rod end bodies (3) to move along the axial direction.

2. The universal ball joint bearing according to claim 1, wherein: the rod end body (3) is formed by connecting rod pieces with the outer cambered surface of the cambered surface;

the inner cambered surface of the cambered surface is connected with the bearing ball (1) and slides relative to the surface of the bearing ball (1).

3. The universal ball joint bearing of claim 2, wherein: the outer ring (4) is arranged into a semicircular shell, the outer ring (4) is arranged on one side of the outer cambered surface of the cambered surface and is matched with the outer cambered surface of the cambered surface in shape, and the outer cambered surface of the cambered surface slides relative to the inner side of the outer ring (4);

the outer ring (4) is provided with a circular opening, and the rod piece of the rod end body (3) extends outwards from the circular opening.

4. A universal ball joint bearing according to claim 3, wherein: the diameter of the arc-shaped surface is larger than that of the circular opening, and the circular opening interferes with the arc-shaped surface to move out of the circular opening.

5. A universal ball joint bearing according to claim 3, wherein: the periphery of the rod piece is connected with a sealing ring (7), and the sealing ring (7) is covered at the circular opening in a sealing way.

6. The universal ball joint bearing according to claim 1, wherein: the bearing ball (1) is coated with a lubricant layer (2).

7. The universal ball joint bearing according to claim 1, wherein: the outer rings (4) are fixedly connected through a reaming hole bolt (6) and a nut (5).

8. The universal ball joint bearing of claim 2, wherein: and a gap is arranged between the arc-shaped surfaces of the adjacent rod end bodies (3).

9. A universal ball joint bearing according to claim 3, wherein: the rod has a diameter smaller than the diameter of the circular opening, and is allowed to oscillate within the circular opening.

10. The universal ball joint bearing according to claim 5, wherein: the diameter of the sealing ring (7) is larger than that of the circular opening, and the sealing ring (7) covers the circular opening when the rod piece swings to the edge of the circular opening.