CN111795069A

CN111795069A - Three-sliding radial spherical plain bearing

Info

Publication number: CN111795069A
Application number: CN202010679752.0A
Authority: CN
Inventors: 李勇; 陈志雄; 沈重雷; 杨炳华; 林荣源
Original assignee: Fujian Longxi Bearing Group Co Ltd
Current assignee: Fujian Longxi Bearing Group Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-10-20

Abstract

The invention provides a three-sliding radial spherical plain bearing, wherein an inner ring with an outer spherical surface is sleeved in an outer ring with an inner spherical surface, and the inner ring and the outer ring are matched in a spherical way, and the three-sliding radial spherical plain bearing is characterized in that: the oil-storage cylinder is provided with a plurality of section planes which have the same interval and are vertical to the axis of the inner ring, and a plurality of oil storage holes which are uniformly distributed in the circumference are arranged on the circular section intersection line of each section plane and the inner hole wall of the inner ring. The driving end is fixedly connected with the outer ring, the oil storage hole is filled with lubricating grease, the shaft penetrates through the inner ring and is in clearance fit with the inner hole of the inner ring, and a lubricating oil film is formed between the inner hole of the inner ring and the shaft. The invention can avoid the failure of the radial spherical plain bearing due to the clamping when in use, and prolong the service life of the bearing.

Description

Three-sliding radial spherical plain bearing

Technical Field

The present invention relates to a radial joint bearing structure.

Background

The radial spherical plain bearing is a spherical plain bearing, an inner ring with an outer spherical surface is sleeved in an outer ring with an inner spherical surface, the inner ring and the outer ring are matched in a spherical way, and a shaft penetrates through the inner ring and is matched with an inner hole of the inner ring. The device is typically characterized by the capability of bearing heavy load and self-aligning.

The radial spherical plain bearing of the existing structure has the following problems:

1: the shaft and the inner ring often cause the bearing to be stuck due to too large axial friction.

2: the friction between the inner ring and the outer ring in spherical surface fit is too large, so that the jamming and the bearing function failure are caused.

3: the service life of the bearing needs to be further improved.

Disclosure of Invention

The invention provides a three-sliding radial spherical plain bearing, aiming at solving the defects of the prior art, avoiding the radial spherical plain bearing from losing efficacy due to clamping when in use and prolonging the service life of the bearing.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a three slip radial spherical plain bearing, the inner circle that has the insert cup joints in the outer lane that has the insert, and the inner circle cooperates its characterized in that with the sphere with the outer lane:

the oil-storage cylinder is provided with a plurality of section planes which have the same interval and are vertical to the axis of the inner ring, and a plurality of oil storage holes which are uniformly distributed in the circumference are arranged on the circular section intersection line of each section plane and the inner hole wall of the inner ring.

Further: the driving end is fixedly connected with the outer ring, the oil storage hole is filled with lubricating grease, the shaft penetrates through the inner ring and is in clearance fit with the inner hole of the inner ring, and a lubricating oil film is formed between the inner hole of the inner ring and the shaft.

The invention has the advantages that:

1. the axial sliding function of the shaft and the inner ring can solve the problem that the bearing is clamped due to too large axial friction force between the shaft and the bearing inner ring. 2. The radial sliding function of the shaft and the inner ring can solve the problems of jamming and bearing function failure caused by too large friction force between the spherical surfaces of the bearing. 3. The sliding between the spherical surfaces of the bearing and the radial sliding between the shaft and the inner ring can effectively prolong the service life of the bearing through the sliding combination.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a side view of the present invention;

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

fig. 3 is a usage state diagram of the present invention.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor. In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples.

It will be understood that when an element is referred to as being "secured to" 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 be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "bottom," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2:

the invention relates to an axial and radial split type radial oscillating bearing which comprises an outer ring 1 and an inner ring 2.

The inner ring 2 with an outer spherical surface is sleeved in the outer ring 1 with an inner spherical surface, the inner ring 2 is matched with the outer ring 1 through the spherical surface, and the inner hole wall of the inner ring 2 is provided with an oil storage hole 21.

The oil-storing device is provided with a plurality of section planes which are perpendicular to the axis 22 of the inner ring 2 and have the same distance, and a plurality of oil-storing holes 21 which are uniformly distributed in the circumference are arranged on a circular section intersection line 23 of each section plane and the inner hole wall of the inner ring 2.

As shown in fig. 3:

in practical use, the driving end 4 is fixedly connected with the outer ring 1, and the driving end 4 comprises an outer ring fixing device 41 and a limiting device 42.

When the lubricating oil lubrication device is used, lubricating oil grease is filled into the oil storage hole 21, the shaft 3 penetrates through the inner ring 2 and is in clearance fit with the inner hole of the inner ring 2, a lubricating oil film can be formed between the inner hole of the inner ring 2 and the shaft 3 by the lubricating oil grease, the friction coefficient between the inner hole of the inner ring 2 and the shaft 3 is effectively reduced, and the lubricating oil film can be more uniform through the uniform oil storage hole 21.

Thus, the present invention has the characteristics of radial sliding (as indicated by arrow C) of rotation between the inner ring 2 and the spherical surface of the outer ring 1 of the radial spherical plain bearing, radial sliding (as indicated by arrow C) of rotation between the inner bore 2 and the shaft 3, and axial sliding 9 (as indicated by back-and-forth arrow B) between the inner bore 2 and the shaft 3, which can be referred to as triple sliding.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a three slip radial spherical plain bearing, the inner circle that has the insert cup joints in the outer lane that has the insert, and the inner circle cooperates its characterized in that with the sphere with the outer lane:

2. A triple-sliding radial spherical plain bearing according to claim 1, wherein: the driving end is fixedly connected with the outer ring, the oil storage hole is filled with lubricating grease, the shaft penetrates through the inner ring and is in clearance fit with the inner hole of the inner ring, and a lubricating oil film is formed between the inner hole of the inner ring and the shaft.