WO2023225880A1

WO2023225880A1 - Deep groove ball bearing having good sealing performance

Info

Publication number: WO2023225880A1
Application number: PCT/CN2022/094815
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

Provided is a deep groove ball bearing, comprising an outer bearing ring (1), an inner bearing ring (2), balls, a cage, and sealing rings (3); annular grooves (4) for mounting corresponding sealing rings (3) are formed on the inner and outer peripheral walls of the outer bearing ring (1) and the inner bearing ring (2) located on two corresponding ends; the inner and outer peripheral walls of the sealing rings (3) respectively abut against the outer and inner peripheral walls of the corresponding outer bearing ring (1) and inner bearing ring (2); two end faces of the outer bearing ring (1) are both provided with limiting units I fixedly connected to the end faces of the outer bearing ring (1) and used for limiting the positions of the sealing rings (3) and improving joint sealing performance; two end faces of the inner bearing ring (2) are both provided with limiting units II fixedly connected to the end faces of the inner bearing ring (2) and used for limiting the positions of the sealing rings (3) and improving joint sealing performance; the sealing performance of the bearing is improved.

Description

A kind of deep groove ball bearing with good sealing performance

Technical field

The utility model belongs to the technical field of bearings and relates to a deep groove ball bearing with good sealing performance.

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. During operation, it will be invaded by dust and moisture, which will affect the sealing, making the balls easy to rust, reducing 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 that solves the above problems existing in the prior art.

The purpose of the present utility model can be achieved through the following technical solutions: a deep groove ball bearing with good sealing performance, including a bearing outer ring, a bearing inner ring, balls, a cage and a sealing ring, characterized in that the bearing outer ring The inner and outer walls of the bearing ring and the bearing inner ring at the corresponding ends are provided with annular grooves for the installation of corresponding sealing rings. The inner and outer walls of the above-mentioned sealing rings are respectively connected with the corresponding bearing outer ring and bearing inner ring. The outer and inner peripheral walls are in conflict with each other, and both end surfaces of the bearing outer ring are provided with a limiting unit that is fixedly connected to the outer ring and is used to limit the position of the sealing ring and improve the sealing of the connection. The inner ring of the bearing There are two limiting units fixedly connected to the two end faces and used to limit the position of the sealing ring and improve the sealing of the connection.

In the above-mentioned deep groove ball bearing with good sealing performance, the limiting unit one and the limiting unit two are composed of a limiting ring and a number of studs, and the limiting ring is arranged on the corresponding bearing. On the end surfaces of the outer ring and the bearing inner ring, a number of the studs are arranged on the corresponding limiting rings, and the limiting rings are fixed on the corresponding bearing outer rings and bearing inner rings through the studs.

In the above-mentioned deep groove ball bearing with good sealing performance, there is a gap between the inner peripheral wall of the limit ring on the outer ring of the bearing and the outer peripheral wall of the limit ring on the corresponding inner ring of the bearing. The outer end face of the sealing ring located at the corresponding gap is provided with an axially outward protruding portion.

In the above-mentioned deep groove ball bearing with good sealing performance, a rubber ring to enhance sealing performance is provided between the connection between the sealing ring and the convex portion and the corresponding limit ring. The sealing ring and Embedding grooves for corresponding rubber rings are provided at the connections of the protruding parts. The end of the limiting ring that conflicts with the rubber ring is provided with an arc-shaped groove that matches the rubber ring.

Compared with the existing technology, this deep groove ball bearing with good sealing performance has the following advantages:

1. The inner and outer peripheral walls of the bearing outer ring and the bearing inner ring located at the corresponding ends are provided with annular grooves for the installation of corresponding sealing rings. The inner and outer walls of the above sealing rings are respectively connected with the corresponding bearing outer ring and The outer and inner peripheral walls of the bearing inner ring are in conflict with each other. Both ends of the bearing outer ring are provided with a limiting unit that is fixedly connected to it and is used to limit the position of the sealing ring and improve the sealing of the connection. The bearing inner ring is Both end faces are provided with two limiting units that are fixedly connected to them and used to limit the position of the sealing ring and improve the sealing of the connection. The arrangement of the above structure strengthens the sealing of the connection and forms a multiple sealing structure.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of this deep groove ball bearing with good sealing performance.

Figure 2 is a schematic cross-sectional structural diagram of the deep groove ball bearing with good sealing performance.

In the picture, 1. Bearing outer ring; 2. Bearing inner ring; 3. Seal ring; 4. Annular groove; 5. Limit ring; 6. Stud; 7. Boss; 8. Rubber ring; 9. Embedded Groove; 10. Arc groove.

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 and Figure 2, this deep groove ball bearing with good sealing performance includes a bearing outer ring 1, a bearing inner ring 2, balls, a cage and a sealing ring 3. The sealing ring 3 is arranged between the bearing outer ring 1 and the bearing inner ring 2. Between the bearing inner ring 2, and the number of the sealing rings 3 is two, the bearing outer ring 1 and the bearing inner ring 2 are located on the inner and outer peripheral walls of the corresponding ends, and there are holes for the corresponding sealing rings 3 to be installed. In the annular groove 4, the inner and outer walls of the above-mentioned sealing ring 3 respectively conflict with the outer and inner peripheral walls of the corresponding bearing outer ring 1 and bearing inner ring 2. Both end faces of the bearing outer ring 1 are provided with holes that are fixedly connected to them. And a limiting unit is used to limit the position of the sealing ring 3 and improve the sealing performance of the connection. Both ends of the bearing inner ring 2 are provided with a limiting unit that is fixedly connected to it and is used to limit the position of the sealing ring 3, and The second limiting unit improves the sealing of the connection. The limiting unit 1 and the limiting unit 2 are composed of a limiting ring 5 and a number of studs 6. The limiting ring 5 is arranged on the corresponding bearing outer ring 1 and the bearing inner ring. 2. On the end face, several studs 6 are arranged on the corresponding limiting ring 5, and the limiting ring 5 is fixed on the corresponding bearing outer ring 1 and the bearing inner ring 2 through the studs 6. The bearing inner ring 2. A sealing gasket to enhance sealing performance is provided between the bearing outer ring 1 and the corresponding limiting ring 5.

To elaborate further, in order to improve the sealing performance of the connection, there is a gap between the inner peripheral wall of the limit ring 5 on the bearing outer ring 1 and the outer peripheral wall of the limit ring 5 on the corresponding bearing inner ring 2, and the sealing ring 3 is located in the corresponding position. An axially outwardly protruding raised portion 7 is provided on the outer end face corresponding to the gap, and a rubber ring 8 for enhanced sealing is provided between the connection between the sealing ring 3 and the raised portion 7 and the corresponding limiting ring 5 , the connection between the sealing ring 3 and the raised portion 7 is provided with an embedding groove 9 for the corresponding rubber ring 8 to be embedded and installed, and the end of the limit ring 5 that conflicts with the rubber ring 8 is provided with a matching groove 9 for the rubber ring 8 Arc groove 10.

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 good sealing performance, including a bearing outer ring (1), a bearing inner ring (2), balls, a cage and a sealing ring (3), characterized in that the bearing outer ring (1) The inner and outer peripheral walls located at the corresponding ends of the bearing inner ring (2) are provided with annular grooves (4) for installing the corresponding sealing rings (3). The inner and outer walls of the above-mentioned sealing rings (3) are respectively It conflicts with the outer and inner peripheral walls of the corresponding bearing outer ring (1) and bearing inner ring (2). Both end faces of the bearing outer ring (1) are provided with sealing rings that are fixedly connected to it and used to limit the sealing ring. (3) position, and to improve the sealing of the joint, a limiting unit is provided on both end surfaces of the bearing inner ring (2) that is fixedly connected to it and is used to limit the position of the sealing ring (3), and Limiting unit 2 to improve the sealing of the joint.
A deep groove ball bearing with good sealing performance according to claim 1, characterized in that the first limiting unit and the second limiting unit are composed of a limiting ring (5) and a plurality of studs (6) Composed of, the limiting ring (5) is arranged on the end surface of the corresponding bearing outer ring (1) and the bearing inner ring (2), and several of the studs (6) are arranged on the corresponding limiting ring (5) on the bearing, and fix the limit ring (5) on the corresponding bearing outer ring (1) and bearing inner ring (2) through the stud (6).
A deep groove ball bearing with good sealing performance according to claim 2, characterized in that the inner peripheral wall of the limiting ring (5) on the bearing outer ring (1) is in contact with the corresponding bearing inner ring (2). There are gaps between the outer peripheral walls of the upper limit rings (5), and the sealing ring (3) is provided with an axially outward protruding portion (7) on its outer end face located at the corresponding gap.
A deep groove ball bearing with good sealing performance according to claim 3, characterized in that the connection between the sealing ring (3) and the raised portion (7) and the corresponding limiting ring (5) A rubber ring (8) is provided to enhance the sealing performance. The connection between the sealing ring (3) and the raised portion (7) is provided with an embedding groove (9) for the corresponding rubber ring (8) to be embedded and installed. , the end of the limiting ring (5) that conflicts with the rubber ring (8) is provided with an arc-shaped groove (10) that matches the rubber ring (8).