CN219733946U - Anti-abrasion bearing structure - Google Patents

Abstract

The utility model discloses an anti-wear bearing structure which comprises an inner ring, an outer ring, two groups of rolling bodies, sealing elements and a retainer, wherein the number of each group of rolling bodies is at least nine, the rolling bodies are distributed between the inner ring and the outer ring in a circular array, limiting grooves are formed in the outer side of the inner wall of the outer ring, the sealing elements are fixedly arranged in the limiting grooves, the sealing elements are non-contacted with the inner ring, a steel skeleton is fixedly arranged in the limiting grooves, the steel skeleton is fixedly connected with the sealing elements, and the retainer is arranged outside the rolling bodies. According to the utility model, the limiting groove, the sealing piece and the steel skeleton are arranged, and the sealing piece is arranged in the limiting groove on the outer ring, so that foreign matters in the external environment are effectively prevented from entering the bearing, lubricating grease and lubricating oil in the bearing are prevented from splashing out of the bearing under high-speed rotation, and the steel skeleton plays a role in fixing and supporting the sealing piece.

Description

Anti-abrasion bearing structure

Technical Field

The utility model relates to the technical field of bearings, in particular to an anti-abrasion bearing structure.

Background

Bearings (bearings) are an important component in contemporary mechanical devices. Its main function is to support the mechanical rotator and reduce its friction coefficient in the course of motion, and the common bearings are divided into sliding bearings, knuckle bearings and rolling bearings according to friction mode.

In order to reduce the abrasion degree of the bearing, grease or lubricating oil is required to be added into the bearing, and impurities easily enter the bearing in some workshops with high oil stains and high dust to influence the normal lubrication function of the bearing.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an anti-abrasion bearing structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a wear-resistant bearing structure, includes inner circle, outer lane, two sets of rolling element, sealing member, holder, every group the quantity of rolling element is nine at least, and a plurality of the rolling element is circular array and distributes between inner circle and outer lane, the spacing groove has all been seted up to outer both sides of outer lane inner wall, sealing member fixed mounting is inside the spacing groove, sealing member and inner circle non-contact, fixed mounting has the steel skeleton in the spacing groove, steel skeleton and sealing member fixed connection, the holder sets up outside a plurality of rolling element.

Further, the rolling bodies are made of steel balls, and the sealing piece is made of fluororubber.

Further, a first groove is formed in the outer ring, close to the center, of the outer ring, two second grooves are formed in the outer wall of the inner ring, and the rolling bodies are arranged between the first grooves and the second grooves.

Further, a limit sleeve is arranged on the retainer, and the limit sleeve is positioned on the outer side of the rolling body.

Further, radial and axial gaps exist among the outer ring, the rolling bodies and the inner ring.

Further, the outer ring and the inner ring are made of tungsten steel.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the limiting groove, the sealing piece and the steel skeleton are arranged, and the sealing piece is arranged in the limiting groove on the outer ring, so that foreign matters in the external environment are effectively prevented from entering the bearing, lubricating grease and lubricating oil in the bearing are prevented from splashing out of the bearing under high-speed rotation, and the steel skeleton plays a role in fixing and supporting the sealing piece.

2. According to the utility model, by arranging the two second grooves, the rolling bodies can roll along different surfaces of the first grooves, so that the inner ring and the outer ring can be allowed to incline to a certain extent during operation, and as a certain radial and axial clearance exists among the outer ring, the rolling bodies and the inner ring, when the temperature of the bearing is increased during operation, the internal contact is not too tight due to the thermal expansion of the three, so that the bearing is prevented from being worn or blocked.

Drawings

FIG. 1 is an exploded view of a wear resistant bearing structure according to the present utility model;

FIG. 2 is a schematic diagram of an overall structure of an anti-wear bearing structure according to the present utility model;

FIG. 3 is a schematic cross-sectional view of an outer race of a wear resistant bearing structure in accordance with the present utility model;

fig. 4 is a schematic view illustrating the installation of a seal member of an anti-wear bearing structure in a limiting groove according to the present utility model.

In the figure: 1. an inner ring; 2. an outer ring; 3. a rolling element; 4. a seal; 5. a retainer; 6. a limit groove; 7. a steel skeleton; 8. a first groove; 9. a second groove; 10. and a limit sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1, 3 and 4, an anti-wear bearing structure comprises an inner ring 1, an outer ring 2, two groups of rolling bodies 3, sealing elements 4 and a retainer 5, wherein the number of the rolling bodies 3 in each group is at least nine, the rolling bodies 3 are distributed between the inner ring 1 and the outer ring 2 in a circular array, limit grooves 6 are formed in the outer two sides of the inner wall of the outer ring 2, the sealing elements 4 are fixedly arranged in the limit grooves 6, the sealing elements 4 are not in contact with the inner ring 1, steel frameworks 7 are fixedly arranged in the limit grooves 6, the steel frameworks 7 are fixedly connected with the sealing elements 4, the sealing elements 4 are arranged in the limit grooves 6 on the outer ring 2, so that foreign matters in the external environment are effectively blocked from entering the bearing, meanwhile, lubricating grease and lubricating oil in the bearing are prevented from being discharged out of the bearing under high-speed rotation, the steel frameworks 7 play a fixed supporting role on the sealing elements 4, and the retainer 5 is arranged outside the rolling bodies 3.

Referring to fig. 1 and 2, the present utility model is specifically: the rolling elements 3 are made of steel balls, and the sealing element 4 is made of fluororubber and has the characteristic of high temperature resistance.

Referring to fig. 1, the present utility model is specifically: the inner part of the outer ring 2 is close to the center position and provided with a first groove 8, the outer wall of the inner ring 1 is provided with two second grooves 9, the rolling bodies 3 are arranged between the first groove 8 and the second grooves 9, and the rolling bodies 3 can roll along different surfaces of the first groove 8, so that the inner ring 1 and the outer ring 2 can be allowed to have certain inclination during operation.

Referring to fig. 1, the present utility model is specifically: the retainer 5 is provided with a limit sleeve 10, the limit sleeve 10 is positioned on the outer side of the rolling body 3, and the rolling body 3 is always positioned in the limit sleeve 10.

Referring to fig. 1, the present utility model is specifically: radial and axial gaps exist among the outer ring 2, the rolling bodies 3 and the inner ring 1, and when the temperature becomes high in the bearing working process, the thermal expansion of the outer ring, the rolling bodies 3 and the inner ring can not cause the internal contact to be too tight, so that the bearing is prevented from being worn or blocked.

Referring to fig. 1, the present utility model is specifically: the outer ring 2 and the inner ring 1 are made of tungsten steel, and have the characteristics of wear resistance, heat resistance and corrosion resistance.

Working principle: through set up sealing member 4 in spacing groove 6 on outer lane 2, effectively blocked outside environment debris entering bearing inside, avoid inside lubricating grease of bearing, lubricating oil to splash outside the bearing under high-speed rotation simultaneously, steel skeleton 7 plays fixed support effect to sealing member 4, because there is certain radial and axial clearance between outer lane 2, rolling element 3, inner lane 1, when the temperature became high in the bearing work, the thermal expansion of three can not lead to inside contact too tight, thereby avoid the condition that the bearing is worn and shut, through two second recesses 9 of inner lane 1 and a first recess 8 of outer lane 2, rolling element 3 can roll along the different face of first recess 8, thereby can allow inner lane 1 and outer lane 2 to have certain slope when the operation.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

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

Claims (6)

1. The utility model provides a wear-resistant bearing structure, its characterized in that, including inner circle (1), outer lane (2), two sets of rolling element (3), sealing member (4), holder (5), every group rolling element (3) quantity is nine at least, and a plurality of rolling element (3) are circular array and distribute between inner circle (1) and outer lane (2), spacing groove (6) have all been seted up to outer both sides of outer lane (2) inner wall, sealing member (4) fixed mounting is inside spacing groove (6), sealing member (4) and inner circle (1) non-contact, fixed mounting has steel skeleton (7) in spacing groove (6), steel skeleton (7) and sealing member (4) fixed connection, holder (5) set up outside a plurality of rolling element (3).

2. The wear-resistant bearing structure according to claim 1, characterized in that the material of the rolling bodies (3) is steel balls and the material of the sealing member (4) is fluororubber.

3. The anti-wear bearing structure according to claim 1, wherein a first groove (8) is formed in the outer ring (2) near the center, two second grooves (9) are formed in the outer wall of the inner ring (1), and the rolling elements (3) are arranged between the first grooves (8) and the second grooves (9).

4. The wear-resistant bearing structure according to claim 1, characterized in that the retainer (5) is provided with a stop collar (10), the stop collar (10) being located outside the rolling elements (3).

5. A wear resistant bearing arrangement according to claim 1, characterized in that radial and axial clearances are present between the outer ring (2), the rolling bodies (3), the inner ring (1).

6. The wear-resistant bearing structure according to claim 1, wherein the material of the outer ring (2) and the inner ring (1) is tungsten steel.