CN220726839U - Ball bearing - Google Patents

Abstract

The utility model discloses a ball bearing, which comprises an inner ring, wherein an outer ring is arranged on the outer side of the inner ring, a retainer is fixed between the inner ring and the outer ring, a support ball is arranged on the retainer, an oil storage cavity is formed in the side wall of the outer ring, and an oil duct II is formed in the position, opposite to the support ball, in the outer ring. The beneficial effects are that: according to the utility model, on one hand, the two sealing covers are symmetrically arranged on the two sides of the ball bearing, and the lubricating balls are respectively fixed on the inner side and the outer side of the sealing covers, so that the ball bearing still has good sealing dustproof performance when in long-time use, on the other hand, under the action of the oil injection pipe, the oil storage cavity, the first oil duct and the second oil duct, lubricating oil can overflow outwards from the inside of the ball bearing when in use, so that excessive leakage of lubricating oil can be effectively avoided, pollution to the mounting position of the bearing is avoided, and the use effect of the sealing ball bearing is improved.

Description

Ball bearing

Technical Field

The utility model relates to the technical field of ball bearings, in particular to a ball bearing.

Background

The ball bearing is one of rolling bearings, and the spherical alloy steel balls are arranged between the inner steel ring and the outer steel ring, so that the friction force in the power transmission process is reduced and the transmission efficiency of mechanical power is improved in a rolling mode. Ball bearings cannot withstand large heavy loads and are common in light industrial machinery. Ball bearings are also called ball bearings.

The prior sealed ball bearing mainly comprises an inner ring, an outer ring, a retainer, balls arranged in the retainer and sealing sheets fixed on two sides of the retainer, and the ball bearing with the structure can reduce friction and wear of shaft parts in the power transmission process and has certain sealing capacity.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to solve the technical problem of the prior art, and provides the ball bearing which can realize long-time sealing and dust prevention of the roller bearing and can effectively avoid the waste of the dripping of lubricating oil during lubrication.

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model provides a ball bearing, which comprises an inner ring, wherein an outer ring is arranged on the outer side of the inner ring, a retainer is fixed between the inner ring and the outer ring, a supporting ball is arranged on the retainer, an oil storage cavity is formed in the side wall of the outer ring, an oil duct II is formed in the outer ring, which is opposite to the supporting ball, a sealing cover is symmetrically arranged on the two sides of the retainer in the outer ring, lubricating balls are arranged on the two sides of the inner side and the outer side of the sealing cover, an oil injection pipe is arranged on one side wall of the outer ring, and an oil duct I is formed in the outer ring, which is opposite to the lubricating balls.

Furthermore, the retainer is in rolling connection with the supporting balls, the supporting balls are inserted into the inner ring and the outer ring, and the contact positions of the outer ring and the inner ring with the supporting balls are of concave arc structures.

By adopting the technical scheme, the convenient rotation between the inner ring and the outer ring can be ensured under the action of the retainer.

Further, the oil storage cavity is formed on the outer ring, and the oil storage cavity is communicated with the first oil duct.

By adopting the technical scheme, the lubricating oil in the oil storage cavity can enter the lubricating ball through the first oil duct so as to lubricate the lubricating ball.

Further, the oil injection pipe is welded with the outer ring, the outer ring is communicated with the oil storage cavity, and the oil storage cavity is communicated with the second oil duct.

By adopting the technical scheme, the lubricating oil in the oil storage cavity can enter the supporting balls through the second oil duct so as to lubricate the supporting balls.

Furthermore, the lubrication ball is rotationally connected with the sealing cover, and the lubrication ball is spliced with the outer ring and the inner ring.

By adopting the technical scheme, the friction and abrasion between the sealing cover and the inner ring and between the sealing cover and the outer ring can be effectively reduced under the action of the lubricating balls.

Furthermore, the sealing covers are made of stainless steel, and two sealing covers are arranged.

Through adopting above-mentioned technical scheme, can cover the protection in this ball bearing under the sealed lid effect to effectively avoid ball bearing to be polluted by external impurity when using.

(III) beneficial effects

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

in order to solve the problem that the existing sealed ball bearing mainly comprises an inner ring, an outer ring, a retainer, balls arranged in the retainer and sealing sheets fixed on two sides of the retainer, the ball bearing with the structure can reduce friction and abrasion of shaft parts in the power transmission process and has certain sealing capacity, but on one hand, the sealing sheets on the sealed ball bearing with the structure are made of rubber, the abrasion aging phenomenon of the sealing sheets with the structure is serious in the actual use process, so that the dustproof performance of the sealed ball bearing in the actual use process is poor, on the other hand, the sealed ball bearing with the structure mainly adds lubricating oil into the sealed ball bearing from the side surface in the actual use process, the lubricating oil is exposed seriously in the lubricating mode, the problem that the environment of the installation position of the sealed ball bearing is polluted easily is solved, on the one hand, the sealed ball bearing can be symmetrically arranged on two sides of the sealed ball bearing, and the two sides of the sealed cover are respectively fixed with the sealing covers, so that the sealed ball bearing still has good anti-dust performance in the long-time use process, and the sealed ball bearing can be prevented from overflowing from the oil duct by the sealed ball bearing in the other hand, and the sealed oil duct can be prevented from being leaked outside the sealed bearing.

Drawings

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

fig. 2 is a right side cross-sectional view of a ball bearing according to the present utility model.

The reference numerals are explained as follows:

1. a filler pipe; 2. an outer ring; 3. sealing cover; 4. an inner ring; 5. lubricating the balls; 6. an oil storage chamber; 7. a retainer; 8. supporting the balls; 9. an oil duct I; 10. and an oil duct II.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1-2, a ball bearing in this embodiment includes an inner ring 4, an outer ring 2 is disposed outside the inner ring 4, a retainer 7 is fixed between the inner ring 4 and the outer ring 2, a supporting ball 8 is mounted on the retainer 7, an oil storage cavity 6 is formed in a side wall of the outer ring 2, an oil channel two 10 is formed in the outer ring 2 opposite to the supporting ball 8, sealing covers 3 are symmetrically mounted on two sides of the retainer 7 in the outer ring 2, lubrication balls 5 are mounted on two sides inside and outside the sealing covers 3, lubrication oil in the oil storage cavity 6 can enter the lubrication balls 5 through the first oil channel 9 so as to lubricate the lubrication balls 5, an oil injection pipe 1 is mounted on one side wall of the outer ring 2, the first oil channel 9 is formed in the outer ring 2 opposite to the lubrication balls 5, lubrication oil in the oil storage cavity 6 can enter the supporting ball 8 through the second oil channel 10 so as to lubricate the supporting ball 8, and friction wear between the sealing covers 3 and the inner ring 4 and 2 can be effectively reduced under the action of the lubrication balls 5.

As shown in fig. 1-2, in this embodiment, the retainer 7 is in rolling connection with the supporting balls 8, the supporting balls 8 are inserted into the inner ring 4 and the outer ring 2, the contact positions between the outer ring 2 and the inner ring 4 and the supporting balls 8 are of concave arc structures, the oil storage cavity 6 is formed on the outer ring 2, the oil storage cavity 6 is communicated with the first oil duct 9, the oil filling pipe 1 is welded with the outer ring 2, the outer ring 2 is communicated with the oil storage cavity 6, the oil storage cavity 6 is communicated with the second oil duct 10, the lubricating balls 5 are rotationally connected with the sealing cover 3, the lubricating balls 5 are inserted into the outer ring 2 and the inner ring 4, the sealing cover 3 is made of stainless steel, and the sealing cover 3 can cover and protect the ball bearing under the action of the sealing cover 3, so that the ball bearing is effectively prevented from being polluted by external impurities when in use.

The specific implementation process of this embodiment is as follows: during use, the external transmission shaft piece is inserted on the inner ring 4, the sealed ball bearing is mounted on a preset bearing seat, and then the ball bearing can be used, wherein in the use process, the sealed ball bearing still has good sealing and dustproof performance through the design of the sealing cover 3 and the lubricating ball 5, and meanwhile, under the action of the oil filling pipe 1, the oil storage cavity 6, the oil duct I9 and the oil duct II 10, lubricating oil can overflow outwards from the inside of the ball bearing during use, so that excessive leakage of lubricating oil can be effectively avoided, pollution to the mounting position of the bearing is avoided, and the use effect of the sealed ball bearing is improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. 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 utility model. Thus, the present utility model 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 (6)

1. A ball bearing, characterized in that: including inner circle (4), inner circle (4) outside is provided with outer lane (2), inner circle (4) with be fixed with holder (7) between outer lane (2), install on holder (7) and support ball (8), oil storage chamber (6) have been seted up in outer lane (2) lateral wall, just in outer lane (2) support ball (8) department and seted up oil duct two (10), be located in outer lane (2) sealed lid (3) are installed to holder (7) bilateral symmetry, lubricated ball (5) are all installed to sealed lid (3) inside and outside both sides, annotate oil pipe (1) are installed on outer lane (2) a lateral wall, just in outer lane (2) lubricated ball (5) department has seted up oil duct one (9).

2. A ball bearing according to claim 1, wherein: the retainer (7) is in rolling connection with the supporting balls (8), the supporting balls (8) are inserted into the inner ring (4) and the outer ring (2), and the contact positions of the outer ring (2) and the inner ring (4) with the supporting balls (8) are of concave arc structures.

3. A ball bearing according to claim 1, wherein: the oil storage cavity (6) is formed on the outer ring (2), and the oil storage cavity (6) is communicated with the first oil duct (9).

4. A ball bearing according to claim 1, wherein: the oil filling pipe (1) is welded with the outer ring (2), the outer ring (2) is communicated with the oil storage cavity (6), and the oil storage cavity (6) is communicated with the oil duct II (10).

5. A ball bearing according to claim 1, wherein: the lubrication ball (5) is rotationally connected with the sealing cover (3), and the lubrication ball (5) is spliced with the outer ring (2) and the inner ring (4).

6. A ball bearing according to claim 1, wherein: the sealing covers (3) are made of stainless steel, and the number of the sealing covers (3) is two.