CN211145355U

CN211145355U - Bearing sealing device

Info

Publication number: CN211145355U
Application number: CN201922350586.5U
Authority: CN
Inventors: 张松; 张卫玲; 胡润宇; 王海东; 毛亮; 孙佳星; 董建保; 陈朝; 沈健; 杨杰; 张江伟; 史学武; 高欢欢; 王荣鹏
Original assignee: Sanyou Silicon Industry Co ltd
Current assignee: Tangshan Sanyou Silicon Industry Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-07-31
Anticipated expiration: 2029-12-24

Abstract

The utility model provides a bearing sealing device, including bearing gland and oil blanket, the bearing gland hole is equipped with wear-resisting bush. Adopt the utility model discloses a hidden danger that oil blanket and axle direct contact brought has been eliminated to the device, has prolonged equipment life, makes production even running, reduces worker intensity of labour.

Description

Bearing sealing device

Technical Field

The utility model relates to a bearing grease seals the field, particularly relates to a bearing sealing device.

Background

At present, bearing lubricating grease is mostly sealed by a single oil seal, the oil seal is in direct contact with a shaft, the oil seal is abraded greatly by the sealing mode, the oil seal is in direct contact with the shaft, and the shaft is abraded when the oil seal is abraded. After the oil seal is worn, lubricating grease in the bearing is lost, a pollution source enters the bearing, and the bearing locking condition occurs in the operation process of equipment. At present, the method for solving the faults is to replace the bearing on line or replace the equipment integrally, the maintenance time for replacing the bearing on line is about 12 hours, if the whole equipment is replaced, the maintenance time is longer, the replacement workload is larger, the labor intensity of workers is increased, and more serious influence is caused on the stable operation of the production.

SUMMERY OF THE UTILITY MODEL

To the above circumstances, the utility model provides a reduce the wearing and tearing of axle and prevent that the filth from getting into the bearing sealing device of bearing.

The utility model adopts the following technical scheme:

The utility model provides a bearing seal device, includes bearing gland and skeleton oil blanket, its characterized in that: the bearing gland bore is equipped with wear-resisting bush.

Adopt the technical scheme of the utility model following beneficial effect has: through the installation wear-resisting bush, prevent the wearing and tearing of oil blanket and axle that cause because oil blanket and axle direct contact among the prior art.

Preferably, the outer edge of the wear-resistant bushing is of a stepped structure, the small-diameter structure is arranged on an inner hole of the framework oil seal, and the large-diameter structure is matched with an inner hole of the bearing gland.

Preferably, the bearing gland is provided with an annular seal groove.

Preferably, the inner bore of the wear bushing is of a stepped configuration.

Preferably, the framework oil seals are arranged in two, and the specifications of the two framework oil seals are the same.

Drawings

FIG. 1 is a cross-sectional view of a bearing gland;

FIG. 2 is a cross-sectional view of a bearing seal assembly;

FIG. 3 is a cross-sectional view of a wear bushing;

In the figure, a bearing gland 1; bolt holes 2; a wear-resistant bushing 3; an O-shaped ring mounting groove 4; and an oil seal 5.

Detailed Description

The bearing seal arrangement of the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a sectional view of a prior art bearing gland 1. The bearing gland is step-shaped outside, and inside is the hole that has a plurality of steps, and the top of hole has the chamfer. A plurality of bolt holes 2 are arranged on the outer step part of the bearing gland. During installation, the bearing cover 1 can be fastened to the bearing holder by inserting bolts into the bolt holes 2.

Fig. 2 is a cross-sectional view of a bearing seal assembly. The bearing sealing device comprises a bearing gland 1. Two aggregate oil seals 5 are clamped in a stepped hole below the chamfer part of the inner hole of the bearing gland 1, and preferably, the specifications of the two aggregate oil seals 5 are the same. In order to avoid direct contact between the aggregate oil seal 5 and a shaft arranged on a bearing seat, a wear-resistant bushing 3 is arranged between an inner hole of the aggregate oil seal 5 and the shaft, and the wear-resistant bushing is made of a wear-resistant material, so that the service life can be prolonged.

Referring to fig. 2 and 3, the outer edge of the wear-resistant lining 3 is in a step-like structure, with a larger upper diameter and a smaller lower diameter. The major diameter structure matches with the hole of bearing cover 1, and minor diameter structure installs on the hole of aggregate oil seal 5 to form sealed face between the lower surface of major diameter structure and the upper surface of upper portion aggregate oil seal 5, prevent that the external pollution source from getting into, minor diameter structure surface then with the surface contact of aggregate oil seal 5 hole. The inner hole of the wear-resistant bush 3 is also of a stage-shaped structure, so that the shaft is limited and forms transition fit with the shaft.

Referring to fig. 2 again, an annular seal groove 4 is further disposed on the bearing gland 1, and an O-ring is mounted in the groove to prevent grease in the bearing from leaking outwards, so as to achieve better sealing.

Through adopting the technical scheme of the utility model, add wear-resisting bush 3 between axle and aggregate oil blanket 5, the oil blanket can not with axle direct contact. When the equipment runs, the shaft drives the wear-resistant bushing 3 to rotate simultaneously due to transition fit between the shaft and the wear-resistant bushing 3, and abrasion is transferred to the wear-resistant bushing 3 and the aggregate oil seal 5. Because two aggregate oil seals 5 are arranged, when one oil seal is worn, the other oil seal can play a compensation role, and a sealing surface is formed between the aggregate oil seal 5 and the wear-resistant bushing 3, so that the loss of lubricating grease in the bearing can be prevented, and a pollution source can be prevented from entering the bearing.

The equipment operates for a period of time and then inspects the wear-resistant bushing and the oil seal, when the abrasion of the aggregate oil seal and the wear-resistant bushing is found, only the abraded aggregate oil seal and the wear-resistant bushing are required to be replaced, and the bearing does not need to be replaced, so that the service life of the equipment is prolonged, the labor intensity of workers is reduced, and the benefit of enterprises is increased.

Claims

1. The utility model provides a bearing seal device, includes bearing gland and skeleton oil blanket, its characterized in that: the bearing gland bore is equipped with wear-resisting bush.

2. The bearing seal arrangement of claim 1 wherein: the outer edge of the wear-resistant bush is of a step-shaped structure, the small-diameter structure is arranged on an inner hole of the framework oil seal, and the large-diameter structure is matched with an inner hole of the bearing gland.

3. The bearing seal arrangement of claim 1 or 2, wherein: an annular sealing groove is arranged on the bearing gland.

4. The bearing seal arrangement of claim 1 or 2, wherein: the inner hole of the wear-resistant bush is of a stage-shaped structure.

5. The bearing seal arrangement of claim 1 or 2, wherein: the framework oil seals are arranged into two, and the specifications of the two framework oil seals are the same.