WO2023225881A1

WO2023225881A1 - Deep groove ball bearing without sealing deviation after assembly

Info

Publication number: WO2023225881A1
Application number: PCT/CN2022/094816
Authority: WO
Inventors: 李建平
Original assignee: 进发轴承有限公司
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2023-11-30

Abstract

A deep groove ball bearing without sealing deviation after assembly, comprising a bearing inner ring (1), a bearing outer ring (2), balls, a retainer, and seal rings, wherein the seal rings are provided between the bearing outer ring (2) and the bearing inner ring (1); there are two seal rings, and each seal ring is composed of an assembly ring (3) and a seal unit; the lower end of the assembly ring (3) is bent towards the direction of the bearing inner ring (1) to form a first folded edge (4) for mounting the seal unit, and the upper end of the assembly ring (3) is bent towards the direction of the bearing inner ring (1) to form a second folded edge (5) for limiting the position of the seal unit; and the seal unit is composed of two seal pads (6) which are symmetrically arranged and are located between the first folded edge (4) and the second folded edge (5) and abut against the outer wall of the bearing inner ring (1). The deep groove ball bearing has the advantage of good sealing performance.

Description

A deep groove ball bearing with no deviation in sealing performance after assembly

Technical field

The utility model belongs to the technical field of bearings and relates to a deep groove ball bearing with no deviation in sealing performance after assembly.

Background technique

Bearings are an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Existing bearings generally consist of an outer ring, a sealing ring and an inner ring, and the sealing ring is generally composed of a rubber body and a skeleton. However, the equipment may be used in places with poor environments. Traditional sealing rings cannot withstand the erosion of impurities for a long time, which can easily cause damage to the sealing rings, thereby affecting the service life of the bearings and even causing the equipment to stop working.

Contents of the invention

The purpose of this utility model is to provide a deep groove ball bearing with good sealing performance and long service life in view of the above-mentioned problems existing in the prior art.

The purpose of the utility model can be achieved through the following technical solutions: a deep groove ball bearing with no deviation in sealing performance after assembly, including a bearing inner ring, a bearing outer ring, balls, a cage and a sealing ring, and the sealing ring is arranged on the bearing There are two sealing rings between the outer ring and the bearing inner ring. The sealing ring is characterized in that the sealing ring is composed of an assembly ring and a sealing unit. The lower end of the assembly ring is bent toward the direction of the bearing inner ring. Fold to form a flange one for the installation of the sealing unit, and the upper end of the assembly ring is bent toward the direction of the inner ring of the bearing to form a flange two for limiting the position of the sealing unit. The sealing unit is composed of two symmetrically arranged and located at It is composed of a sealing gasket between the first flange and the second flange and in conflict with the outer wall of the inner ring of the bearing.

In the above-mentioned deep groove ball bearing with no deviation in sealing performance after assembly, the inner peripheral wall of the bearing outer ring located at both ends is provided with stepped grooves for the assembly ring to be installed.

In the above-mentioned deep groove ball bearing with no deviation in sealing performance after assembly, the cooperation of the assembly ring and the first flange forms an L-shaped structure for the installation of the sealing unit, and the cooperation of the assembly ring and the second flange A U-shaped structure is formed to limit the position of the sealing unit.

In the above-mentioned deep groove ball bearing with no deviation in sealing performance after assembly, the lower end of the second flange is bent in the direction of the inner circle of the bearing to form a third flange that improves the limiting effect.

In the above-mentioned deep groove ball bearing with no deviation in sealing performance after assembly, an elastic elastic ring gasket is provided between the two sealing gaskets, and the elastic ring gasket leaves a gap between the two sealing gaskets. There is a gap, and the two sealing pads are in conflict with the inner ring of the bearing to form an "eight"-shaped structure. An elastic elastic ring pad is also provided between the first flange and the adjacent sealing pad.

Compared with the existing technology, this deep groove ball bearing with no deviation in sealing performance after assembly has the following advantages:

1. The sealing ring consists of an assembly ring and a sealing unit. The lower end of the assembly ring is bent toward the inner ring of the bearing to form a flange for the installation of the sealing unit, and the upper end of the assembly ring is bent toward the inner ring of the bearing to form a sealing ring. The second flange is used to limit the position of the sealing unit. The sealing unit is composed of two symmetrically arranged sealing pads located between the first flange and the second flange and in conflict with the outer wall of the inner ring of the bearing. The above structure The setting forms a double-layer sealing structure, thus enhancing the sealing effect.

Description of the drawings

Figure 1 is a schematic cross-sectional structural view of the deep groove ball bearing with no deviation in sealing performance after assembly.

In the picture, 1. Bearing inner ring; 2. Bearing outer ring; 3. Assembly ring; 4. Folding one; 5. Folding two; 6. Sealing gasket; 7. Step groove; 8. Folding three; 9. Elastic ring pad.

Detailed ways

The following are specific embodiments of the present utility model and are combined with the accompanying drawings to further describe the technical solution of the present utility model, but the utility model is not limited to these embodiments.

As shown in Figure 1, this assembled deep groove ball bearing with no deviation in sealing performance includes bearing inner ring 1, bearing outer ring 2, balls, cage and sealing ring, and the sealing ring is arranged in bearing outer ring 2 and inside the bearing. Between the rings 1, the number of the sealing rings is two. The sealing ring is composed of an assembly ring 3 and a sealing unit. The lower end of the assembly ring 3 is bent toward the direction of the bearing inner ring 1 to form a flange 4 for the installation of the sealing unit. , and the upper end of the assembly ring 3 is bent toward the direction of the bearing inner ring 1 to form a flange 2 5 for limiting the position of the sealing unit. The sealing unit is composed of two symmetrically arranged, and is located at the flange 1 4 and the flange 2 5 and is composed of a sealing gasket 6 that conflicts with the outer wall of the bearing inner ring 1. The assembly ring 3 and the flange 4 cooperate to form an L-shaped structure for the installation of the sealing unit. The assembly ring 3 and the flange 1 The cooperation of 2 and 5 forms a U-shaped structure for limiting the position of the sealing unit.

To elaborate further, in order to facilitate assembly and prevent the sealing ring from contacting the cage, the inner peripheral wall of the bearing outer ring 2 at both ends is provided with stepped grooves 7 for the assembly ring 3 to be installed.

To elaborate further, in order to enhance the limiting effect, the lower end of the flange 2 5 is bent in the direction of the inner circle of the bearing to form a flange 3 8 that improves the limiting effect.

Elaborate further. In order to facilitate assembly, reduce wear during assembly, and at the same time enhance the stability and sealing after assembly, an elastic elastic ring gasket 9 is provided between the two sealing gaskets 6. The elastic ring gasket 9 makes the two sealing gaskets There is a gap between the sealing pads 6, and the two sealing pads 6 are in contact with the bearing inner ring 1 to form an "eight"-shaped structure. An elastic seal is also provided between the folding edge 14 and the adjacent sealing pad 6. Elastic ring pad 9.

The specific embodiments described herein are merely illustrations of the spirit of the present invention. Those skilled in the technical field to which this utility model belongs can make various modifications or additions to the described specific embodiments or adopt similar replacement methods, but this will not deviate from the spirit of the utility model or exceed the appended claims. defined range.

Claims

A deep groove ball bearing with no deviation in sealing performance after assembly, including a bearing inner ring (1), a bearing outer ring (2), balls, a cage and a sealing ring, and the sealing ring is arranged on the bearing outer ring (2) and the bearing Between the inner ring (1), the number of the sealing rings is two. It is characterized in that the sealing ring is composed of an assembly ring (3) and a sealing unit. The lower end of the assembly ring (3) faces the bearing. The inner ring (1) is bent in the direction to form a flange (4) for the installation of the sealing unit, and the upper end of the assembly ring (3) is bent in the direction of the bearing inner ring (1) to form a flange (4) for limiting the position of the sealing unit. Flange two (5), the sealing unit is arranged symmetrically between two flanges (4) and flange two (5), and is opposite to the outer wall of the bearing inner ring (1). It is composed of a conflicting seal (6).
A deep groove ball bearing with no deviation in sealing performance after assembly according to claim 1, characterized in that the inner peripheral walls of the bearing outer ring (2) located at both ends are provided with assembly rings ( 3) Installed step groove (7).
A deep groove ball bearing with no deviation in sealing performance after assembly according to claim 1, characterized in that the cooperation of the assembly ring (3) and the flange one (4) forms an L-shape for the installation of the sealing unit. Structure, the cooperation of the assembly ring (3) and the flange (5) forms a U-shaped structure for limiting the position of the sealing unit.
A deep groove ball bearing with no deviation in sealing performance after assembly according to claim 1, characterized in that the lower end of the second flange (5) is bent in the direction of the inner circle of the bearing to improve the limiting effect. Fold three (8).
A deep groove ball bearing with no deviation in sealing performance after assembly according to claim 1, characterized in that an elastic elastic ring gasket (9) is provided between the two sealing gaskets (6). The elastic ring gasket (9) leaves a gap between the two sealing gaskets (6), and makes the two sealing gaskets (6) and the bearing inner ring (1) conflict with each other to form an "eight"-shaped structure. An elastic elastic ring gasket (9) is also provided between the flange one (4) and the adjacent sealing gasket (6).