CN210397460U

CN210397460U - Dustproof bearing

Info

Publication number: CN210397460U
Application number: CN201920510285.1U
Authority: CN
Inventors: 张青山; 李盖华; 周伟; 孙忠涛; 汤小生
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-04-24
Anticipated expiration: 2029-04-15

Abstract

The utility model relates to a dust bearing, dust bearing includes bearing inner race, bearing inner race and dust guard, the dust guard with bearing inner race fixed connection, the bearing inner race with be formed with a raceway between the bearing inner race, the dust guard set up in the raceway upside, be provided with the ball in the raceway. The utility model discloses a dust bearing sets up the dust guard in one side of bearing raceway, can restrict lubricating grease's motion space for the ball obtains good lubrication, thereby the dust guard is located one side of bearing raceway and has given way the space at bearing center, and the internal diameter of bearing inner race just can reduce like this, and its area of contact with clutch separation finger increases, makes the bearing can cooperate with the clutch of multiple size specification, has promoted the commonality of bearing.

Description

Dustproof bearing

Technical Field

The utility model relates to a dustproof construction, concretely relates to hydraulic release bearing dustproof construction.

Background

The Bearing (Bearing) is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. The rolling bearing generally comprises an outer ring, an inner ring, a rolling body and a retainer. Rolling bearings are classified into ball bearings and roller bearings according to the shape of the rolling elements. The bearing is used for a long time, foreign matters can enter the lubricating oil, and the bearing is easy to damage when the bearing runs at a high speed. The dust cover is used as a part of the bearing and is mainly used for preventing dust and impurities from entering the bearing, and the use performance of the bearing is prevented from being influenced.

The dustproof structure in the prior art is generally composed of a bearing outer ring, a bearing inner ring and a dustproof plate. The dust guard is sleeved on the bearing inner ring and fixed together by an elastic pad and a retainer, so that the dust guard plays a role of dust prevention. The main problem that exists of current hydraulic release bearing dustproof construction:

1) when the bearing works, the clutch release finger is contacted with the bearing outer ring, and the bearing outer ring can be driven to rotate when the engine is started. The dust guard is arranged at the center of the bearing to occupy a certain space, so that the inner diameter of the outer ring of the bearing is slightly larger, the contact area between the outer ring of the bearing and the separation finger of the clutch is limited, and the bearing cannot be suitable for clutches with various sizes.

2) The dust guard is arranged at bearing central point and is put, and the cavity space that leads to the lubricated grease to move is great, can throw away from the bearing raceway, reduces the lubricated effect to the ball, and the lubricated grease loses can lead to the bearing jamming after serious.

In summary, it is desirable to provide a new dustproof structure to improve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dust bearing to solve the above-mentioned technical problem that current dust bearing appears.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme:

the utility model provides a dustproof bearing, dustproof bearing includes bearing inner race, bearing inner race and dust guard, the dust guard with bearing inner race fixed connection, the bearing inner race with be formed with a raceway between the bearing inner race, the dust guard set up in the raceway upside, be provided with the ball in the raceway.

Furthermore, the dust guard is an arch-shaped plate, one side of the dust guard, which faces the raceway, is an inner side surface, one side of the dust guard, which backs on the raceway, is an outer side surface, and the dust guard is fixedly connected with the inner wall of the bearing outer ring through the outer side surface of the dust guard.

Furthermore, two ends of the dust guard are bent towards the inner side surface to form an arch-shaped plate with a certain radian.

Furthermore, two ends of the dust guard are respectively abutted against the inner walls of the bearing outer ring and the bearing inner ring.

Furthermore, one end of the dust guard is attached to a corner of the bearing outer ring.

Furthermore, the dustproof bearing further comprises a retainer and an elastic cushion, the retainer is provided with a U-shaped clamping groove, an opening of the clamping groove faces towards the bearing inner ring, and one end of the bearing inner ring is arranged in the clamping groove.

Furthermore, the elastic pad is arranged in the clamping groove, one end of the elastic pad abuts against the bottom of the clamping groove, and the other end of the elastic pad abuts against the surface of one side, close to the bearing outer ring, of the bearing inner ring.

The utility model discloses a dust bearing sets up the dust guard in one side of bearing raceway, can restrict lubricating grease's motion space for the ball obtains good lubrication, thereby the dust guard is located one side of bearing raceway and has given way the space at bearing center, and the internal diameter of bearing inner race just can reduce like this, and the area of contact that bearing and clutch separation indicate increases, makes the bearing can cooperate with the clutch of multiple size specification, has promoted the commonality of bearing.

Drawings

Fig. 1 is a schematic structural diagram of the dust-proof bearing provided by the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Fig. 1 is a schematic structural diagram of the dust-proof bearing provided by the present invention. As shown in fig. 1, the dust-proof bearing 20 includes a bearing outer ring 21, a bearing inner ring 22 and a dust-proof plate 23, wherein a raceway 24 is formed between the bearing outer ring 21 and the bearing inner ring 22, and balls 25 are arranged in the raceway 24. The dust guard 23 is arranged between the bearing outer ring 21 and the bearing inner ring 22 and is positioned on the upper side of the raceway 24, and the dust guard 23 is fixedly connected with the bearing outer ring 21.

The dust-proof plate 23 of the present embodiment is a dome plate. Specifically, one side of the dust-proof plate 23 facing the raceway 24 is an inner side 231, one side of the dust-proof plate 23 leaning against the raceway 24 is an outer side 232, and the dust-proof plate 23 is fixedly connected with the inner wall of the bearing outer ring 21 through the outer side 232. As shown in fig. 1, both ends of the dust-proof plate 23 are bent in the direction of the inner surface 231 to form a dome plate having a certain curvature. The two ends of the dust guard 23 are respectively abutted to the inner walls of the bearing outer ring 21 and the bearing inner ring 22, and one end of the dust guard 23 is attached to the corner of the bearing outer ring 21 to prevent dust from entering the raceway 24.

In this embodiment, the dust-proof bearing 20 further includes a retainer 26 and a spring washer 27, the retainer 26 has a U-shaped slot 261, an opening of the slot 261 faces the bearing inner ring 22, and one end of the bearing inner ring 22 is disposed in the slot 261.

The elastic pad 27 is disposed in the slot 261, and one end of the elastic pad 27 abuts against the bottom of the slot 261, and the other end abuts against the surface of the bearing inner ring 22 close to the bearing outer ring 21.

The dust bearing 20 of this embodiment is hydraulic release bearing, set up dust guard 23 in one side of bearing raceway 24, can restrict the motion space of lubricating grease, make ball 25 obtain good lubrication, thereby dust guard 23 is located one side of bearing raceway 24 and has made the space at bearing center, the internal diameter of bearing inner race 21 just can reduce like this, its area of contact with clutch separation finger increases, make the bearing can cooperate with the clutch of multiple size specification, the commonality of bearing has been promoted.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims

1. The utility model provides a dust bearing (20), its characterized in that, dust bearing (20) include bearing inner race (21), bearing inner race (22) and dust guard (23), dust guard (23) with bearing inner race (21) fixed connection, bearing inner race (21) with be formed with a raceway (24) between bearing inner race (22), dust guard (23) set up in raceway (24) upside, be provided with ball (25) in raceway (24).

2. The dust bearing (20) of claim 1, wherein the dust guard (23) is a dome plate, a side of the dust guard (23) facing the raceway (24) is an inner side surface (231), a side of the dust guard (23) facing away from the raceway (24) is an outer side surface (232), and the dust guard (23) is fixedly connected with the inner wall of the bearing outer ring (21) through the outer side surface (232).

3. A dust bearing (20) according to claim 2, wherein the dust guard (23) is curved at both ends thereof towards the inner side surface (231) to form a cambered arched plate.

4. Dust bearing (20) according to claim 2, wherein both ends of the dust shield (23) abut against the inner walls of the bearing outer ring (21) and the bearing inner ring (22), respectively.

5. The dust bearing (20) of claim 2, wherein one end of the dust shield (23) abuts a corner of the bearing outer race (21).

6. The dust bearing (20) of claim 1, wherein the dust bearing (20) further comprises a cage (26) and a spring washer (27), the cage (26) having a U-shaped slot (261), the slot (261) opening toward the bearing inner ring (22), an end of the bearing inner ring (22) being disposed within the slot (261).

7. The dust bearing (20) of claim 6, wherein the spring washer (27) is disposed in the slot (261), and one end of the spring washer (27) abuts against the bottom of the slot (261), and the other end abuts against a side surface of the bearing inner ring (22) close to the bearing outer ring (21).