CN215110121U

CN215110121U - Dust-proof sealing device for bearing

Info

Publication number: CN215110121U
Application number: CN202121534716.1U
Authority: CN
Inventors: 刘锋; 王益; 吴林华
Original assignee: Rongchang Bearing Co ltd
Current assignee: Rongchang Bearing Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-12-10
Anticipated expiration: 2031-07-07

Abstract

The utility model provides a dust sealing device for bearing, including the bottom sprag board, the bearing inner race, the roll structure, dustproof gland and fixing bolt, wherein: the bearing outer ring is welded on the outer side of the bottom supporting plate, the rolling structure is clamped in the bottom supporting plate and the bearing outer ring, and the dustproof gland is clamped in the bottom supporting plate and the bearing outer ring; the fixing bolt is installed at the top of the dustproof gland through threads. The utility model discloses bearing inner race, the setting of roll structure and dustproof gland, as an organic whole with the bearing, long-time use is difficult to wearing and tearing.

Description

Dust-proof sealing device for bearing

Technical Field

The utility model belongs to the technical field of the bearing seal is dustproof, especially, relate to a bearing dust seal device.

Background

There are two different designs, depending on the bearing family and size, where the dust cap is made of stamped steel, usually with a cylindrical extension at the inner diameter of the dust cap, forming a long sealing gap with the inner ring shoulder (a). Some dust caps do not have bearings with extended low friction seals: the suffixes are RSL, 2RSL or RZ, 2RZ, and three different structural designs exist according to different bearing series and sizes. Example (c): 60. series 62 and 63 bearings, bearings with an outer diameter of less than or equal to 25mm, bearings with series RSL sealing rings 60, 62 and 63, bearings with an outer diameter of greater than 25mm, less than or equal to 52mm, other bearings with RSL sealing rings with RZ sealing rings.

A narrow gap is formed between the sealing ring and the cylindrical surface of the shoulder part of the inner ring or the concave profile of the inner ring, and the narrow gap is not contacted actually, so that the bearing provided with the low-friction sealing ring and the bearing with the Z dust cover can operate at the same rotating speed, but the sealing performance is better, but the existing bearing sealing dust-proof equipment still has the problems that the existing bearing sealing dust-proof equipment is not integrated with the whole bearing and is easy to wear after being used for a long time.

Therefore, it is necessary to invent a dust-proof sealing device for a bearing.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a bearing dust sealing device to solve current bearing seal dust keeper still exist with the bearing wholly not integrative, the problem of long-time easy wearing and tearing of using. The utility model provides a bearing dust sealing device, includes the bottom sprag board, the bearing inner race, the roll structure, dustproof gland and fixing bolt, wherein: the bearing outer ring is welded on the outer side of the bottom supporting plate, the rolling structure is clamped in the bottom supporting plate and the bearing outer ring, and the dustproof gland is clamped in the bottom supporting plate and the bearing outer ring; the fixing bolt is installed at the top of the dustproof gland through threads.

The rolling structure comprises a support ring, a ball retainer and a rotating ball, wherein the ball retainer is embedded in the support ring, and the rotating ball is embedded in the ball retainer.

The dustproof gland comprises a bearing inner ring, an auxiliary rolling ball, a pressing plate and a wear-resistant layer, wherein the auxiliary rolling ball is embedded on the surface of the bearing inner ring, and the pressing plate is arranged inside the bearing inner ring through a fixing bolt; the wear-resistant layer is bonded on the lower surface of the laminated plate.

The bearing outer ring is a metal ring made of carbon steel, the bearing outer ring and the bottom supporting plate are integrated, and a U-shaped structure is formed between the bearing outer ring and the bottom supporting plate; inlay between bearing inner race and the dustproof gland and have the rolling structure, be favorable to being in the utility model discloses a rotate in the outside, and can save an amount of lubricating oil in its inside, this bearing inner race can rotate in the inside of dustproof gland.

The supporting ring in the rolling structure is a circular steel metal ring, the ball retainer in the rolling structure is a hollow shell made of wear-resistant engineering plastics, lubricating oil is filled between the ball retainer in the rolling structure and the rotating balls, a rolling structure is formed between the bearing outer ring and the dustproof gland, resistance is reduced, and sound generated during rotation is reduced.

The whole C font that is of dustproof gland, with bottom sprag board and bearing inner race parcel in its inside, and the supplementary spin of dustproof gland bottom adopts a plurality of small-size steel metal balls to contact with bottom sprag board's bottom, be favorable to making and form the block between bottom sprag board and the bearing inner race, prevent to change and appear dropping, this dustproof gland can rotate in the inside of bearing inner race.

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

1. the utility model discloses bearing inner race's setting is favorable to being in the utility model discloses an the outside rotates, and can save an amount of lubricating oil in its inside, and this bearing inner race can rotate in the inside of dustproof gland.

2. The utility model discloses rolling structure's setting is favorable to forming a rolling structure between bottom sprag board, bearing inner race and the dustproof gland, reduces the resistance, reduces the sound that appears when rotating.

3. The utility model discloses dustproof gland's setting is favorable to making and forms the block between bottom sprag board and the bearing inner race, prevents to change and drops regularly, and this dustproof gland can rotate in the inside of bearing inner race.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the rolling structure of the present invention.

Fig. 3 is a schematic structural view of the dust-proof gland of the present invention.

In the figure:

1-bottom support plate, 2-bearing outer ring, 3-rolling structure, 31-support ring, 32-ball retainer, 33-rotating ball, 4-dustproof gland, 41-bearing inner ring, 42-auxiliary rolling ball, 43-laminated plate, 44-wear-resistant layer and 5-fixing bolt.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in figures 1 to 3.

The utility model provides a pair of bearing dust sealing device, including bottom sprag board 1, bearing inner race 2, rolling structure 3, dustproof gland 4 and fixing bolt 5, wherein: the bearing outer ring 2 is welded on the outer side of the bottom supporting plate 1, the rolling structure 3 is clamped in the bottom supporting plate 1 and the bearing outer ring 2, and the dustproof gland 4 is clamped in the bottom supporting plate 1 and the bearing outer ring 2; the fixing bolt 5 is installed at the top of the dust-proof gland 4 through threads.

The rolling structure 3 includes a cage 31, a ball retainer 32, and a rotary ball 33, and the ball retainer 32 is fitted in the cage 31, and the rotary ball 33 is fitted in the ball retainer 32.

The dustproof gland 4 comprises a bearing inner ring 41, an auxiliary rolling ball 42, a pressing plate 43 and a wear-resistant layer 44, wherein the auxiliary rolling ball 42 is embedded on the surface of the bearing inner ring 41, and the pressing plate 43 is arranged inside the bearing inner ring 41 through a fixing bolt 5; the abrasion resistant layer 44 is bonded to the lower surface of the laminate panel 43.

The utility model provides a dust-proof sealing device for a bearing, wherein a bottom supporting plate 1 adopts a metal ring made of carbon steel and is used for forming a whole with a bearing outer ring 2; the bearing outer ring 2 is a metal ring made of carbon steel, the bearing outer ring 2 and the bottom support plate 1 are integrated, and a U-shaped structure is formed between the bearing outer ring 2 and the bottom support plate 1; a rolling structure 3 is embedded between the bearing outer ring 2 and the dustproof gland 4, which is beneficial to the rotation of the outermost side of the utility model, and a certain amount of lubricating oil can be stored in the bearing outer ring 2, and the bearing outer ring 2 can rotate in the dustproof gland 4; the supporting ring 31 in the rolling structure 3 is a circular steel metal ring, the ball retainer 32 in the rolling structure 3 is a hollow shell made of wear-resistant engineering plastics, and lubricating oil is filled between the ball retainer 32 and the rotating balls 33 in the rolling structure 3, so that a rolling structure is formed among the bottom supporting plate 1, the bearing outer ring 2 and the dust-proof gland 4, the resistance is reduced, and the sound generated during rotation is reduced; dustproof gland 4 is whole to be the C font, wraps up bottom sprag board 1 and bearing inner race 2 inside it, and the supplementary spin 42 of dustproof gland 4 bottom adopts a plurality of small-size steel metal balls to contact with bottom sprag board 1's bottom, be favorable to making and form the block between bottom sprag board 1 and the bearing inner race 2, prevent to change and appear dropping regularly, this dustproof gland 4 can rotate in bearing inner race 2's inside.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a bearing dust sealing device which characterized in that: including bottom sprag board (1), bearing inner race (2), rolling structure (3), dust gland (4) and fixing bolt (5), wherein: the bearing outer ring (2) is welded on the outer side of the bottom supporting plate (1), the rolling structure (3) is clamped in the bottom supporting plate (1) and the bearing outer ring (2), and the dustproof gland (4) is clamped in the bottom supporting plate (1) and the bearing outer ring (2); and the fixing bolt (5) is installed at the top of the dustproof gland (4) through threads.

2. A dust seal for a bearing as claimed in claim 1, wherein: the rolling structure (3) comprises a support ring (31), a ball retainer (32) and rotating balls (33), the ball retainer (32) is embedded in the support ring (31), and the rotating balls (33) are embedded in the ball retainer (32).

3. A dust seal for a bearing as claimed in claim 1, wherein: the dustproof gland (4) comprises a bearing inner ring (41), an auxiliary rolling ball (42), a pressing plate (43) and a wear-resistant layer (44), the auxiliary rolling ball (42) is embedded on the surface of the bearing inner ring (41), and the pressing plate (43) is installed inside the bearing inner ring (41) through a fixing bolt (5); the wear-resistant layer (44) is bonded to the lower surface of the laminated plate (43).

4. A dust seal for a bearing as claimed in claim 1, wherein: the bearing outer ring (2) is a metal ring made of carbon steel, the bearing outer ring (2) and the bottom support plate (1) are integrated, and a U-shaped structure is formed between the bearing outer ring (2) and the bottom support plate (1); and a rolling structure (3) is embedded between the bearing outer ring (2) and the dustproof gland (4).

5. A dust seal for a bearing as claimed in claim 1, wherein: the supporting ring (31) in the rolling structure (3) is a circular steel metal ring, the ball retainer (32) in the rolling structure (3) is a hollow shell made of wear-resistant engineering plastics, and lubricating oil is filled between the ball retainer (32) in the rolling structure (3) and the rotating balls (33).

6. A dust seal for a bearing as claimed in claim 1, wherein: the dustproof gland (4) is integrally C-shaped, the bottom supporting plate (1) and the bearing outer ring (2) are wrapped in the dustproof gland, and the auxiliary rolling balls (42) at the bottom of the dustproof gland (4) are made of a plurality of small steel metal balls and are in contact with the bottom of the bottom supporting plate (1).