CN215762850U

CN215762850U - Tapered roller bearing sealing structure

Info

Publication number: CN215762850U
Application number: CN202121741309.8U
Authority: CN
Inventors: 陈志强
Original assignee: Huzhou Shuangxi Bearing Co ltd; Zhejiang 8+1 Precision Machinery Co Ltd
Current assignee: Huzhou Shuangxi Bearing Co ltd; Zhejiang 8+1 Precision Machinery Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-08
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a tapered roller bearing sealing structure which comprises a bearing outer ring and a bearing inner ring, wherein the bearing outer ring is sleeved on the bearing inner ring, a cover plate is arranged on one side of the bearing inner ring, a transition ring is bent on the inner wall of the cover plate towards the side wall of the bearing outer ring, a first sealing lip is arranged on the transition ring, the first sealing lip is in interference fit with the side wall of the bearing outer ring, a matching ring extends towards the outer peripheral wall of the bearing inner ring on the inner wall of the cover plate, a first matching groove is vertically formed in the outer peripheral wall of the bearing inner ring, the first matching groove is annularly arranged, a second sealing lip extends towards the direction of the first matching groove, the second sealing lip is inserted into the first matching groove, and the outer wall of the second sealing lip is in clearance fit with the inner wall of the first matching groove. The utility model solves the problem that the sealing ring is easy to separate from the bearing when the bearing bears high load in the prior art, so that the sealing of the bearing fails.

Description

Tapered roller bearing sealing structure

Technical Field

The utility model relates to the technical field of bearings, in particular to a sealing structure of a tapered roller bearing.

Background

The 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. However, in the prior art, a sealing ring of the bearing is easy to fall off, and when the bearing bears a high load, the sealing ring on the bearing is easy to separate from the bearing, so that the sealing failure of the bearing is caused.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a tapered roller bearing sealing structure, which aims to solve the problem that a sealing ring is easy to separate from a bearing when the bearing bears a high load in the prior art, so that the sealing of the bearing is failed.

In order to achieve the purpose, the utility model provides a tapered roller bearing sealing structure which comprises a bearing outer ring and a bearing inner ring, wherein the bearing outer ring is sleeved on the bearing inner ring, a cover plate is arranged on one side of the bearing inner ring, a transition ring is bent on the inner wall of the cover plate towards the direction of the side wall of the bearing outer ring, a first sealing lip is arranged on the transition ring, the first sealing lip is in interference fit with the side wall of the bearing outer ring, a matching ring extends on the inner wall of the cover plate towards the direction of the outer peripheral wall of the bearing inner ring, a first matching groove is vertically formed in the outer peripheral wall of the bearing inner ring, the first matching groove is arranged in an annular shape, a second sealing lip extends towards the direction of the first matching groove, and the second sealing lip is inserted into the first matching groove and the outer wall of the second sealing lip is in clearance fit with the inner wall of the first matching groove.

The technical scheme is adopted, and the method has the advantages that: in the technology, the transition ring is provided with the first sealing lip, the first sealing lip is in interference fit with the side wall of the outer ring of the bearing to seal the bearing, and the sealing performance of the bearing is improved; make the bearing this load capacity part can strike the apron when bearing high-order load, make the apron outwards squint even break away from the bearing easily, and second seal lip and the setting of first cooperation groove grafting cooperation on the cooperation ring, make the apron receive this effort part can guide on the second seal lip when the effort strikes, again because second seal lip and first cooperation groove grafting cooperation set up, make the apron can not break away from the bearing easily, further improvement apron stability on the bearing, avoid the apron to break away from the bearing and lead to bearing seal to become invalid.

The utility model further provides that: the bearing inner race periphery wall slopes to have seted up second cooperation groove, second cooperation groove is cyclic annular setting, the cooperation ring has third seal lip towards second cooperation groove direction extension, third seal lip inserts second cooperation groove and third seal lip outer wall and second cooperation inslot wall clearance fit setting.

The technical scheme is adopted, and the method has the advantages that: the second cooperation groove sets up the further stability that has improved the apron on the bearing with the cooperation of pegging graft of third seal lip in the above-mentioned technique, the second cooperation groove is different with first cooperation groove simultaneously, the vertical ring of seting up in the bearing in first cooperation groove, and the second cooperation groove then is that the slope is seted up on the bearing inner race, make the bearing when bearing axial load, the third seal lip can withstand partial impact force with the grafting cooperation in second cooperation groove, the antidumping ability of bearing inner race has been improved, avoid the bearing inner race to topple and lead to the bearing inefficacy.

The utility model further provides that: the first seal lip is composed of a transverse lip and a vertical lip, one end of the transverse lip is connected with the side wall of the transition ring, the other end of the transverse lip is connected with the vertical lip, and the side wall of the vertical lip is in interference fit with the side wall of the bearing outer ring.

The technical scheme is adopted, and the method has the advantages that: first seal lip comprises horizontal lip and perpendicular lip, and horizontal lip one end is connected with the transition ring lateral wall, and the other end is connected with perpendicular lip for interference can be stabilized to first seal lip on bearing inner race lateral wall, further improvement the sealing performance of bearing.

The utility model further provides that: the cover plate is made of metal materials.

The technical scheme is adopted, and the method has the advantages that: the cover plate is made of metal materials, so that the strength of the cover plate is further improved, and the cover plate cannot be easily damaged when the bearing bears high load.

Drawings

FIG. 1 is a cross-sectional view of the present invention.

Detailed Description

The utility model provides a tapered roller bearing sealing structure, which comprises a bearing outer ring 1 and a bearing inner ring 2, wherein the bearing outer ring 1 is sleeved on the bearing inner ring 2, a cover plate 3 is arranged on one side of the bearing inner ring 2, a transition ring 31 is bent on the inner wall of the cover plate 3 towards the side wall direction of the bearing outer ring 1, a first sealing lip 311 is arranged on the transition ring 31, the first sealing lip 311 is arranged in interference fit with the side wall of the bearing outer ring 1, a matching ring 32 extends from the inner wall of the cover plate 3 towards the outer peripheral wall direction of the bearing inner ring 2, a first matching groove 21 is vertically arranged on the outer peripheral wall of the bearing inner ring 2, the first matching groove 21 is annularly arranged, a second sealing lip 321 extends towards the first matching groove 21, the second sealing lip 321 is inserted into the first matching groove 21, and the outer wall of the second sealing lip 321 is arranged in clearance fit with the inner wall of the first matching groove 21, second cooperation groove 22 has been seted up on the slope on 2 periphery walls of bearing inner race, second cooperation groove 22 is cyclic annular setting, cooperation ring 32 has third seal lip 322 towards the extension of second cooperation groove 22 direction, third seal lip 322 inserts second cooperation groove 22 and third seal lip 322 outer wall and the setting of second cooperation groove 22 inner wall clearance fit, first seal lip 311 comprises horizontal lip 312 and perpendicular lip 313, horizontal lip 312 one end is connected with the 31 lateral wall of transition ring, and the other end is connected with perpendicular lip 313, erect lip 313 lateral wall and 1 lateral wall interference fit setting of bearing inner race, apron 3 is made by metal material.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A tapered roller bearing seal structure which characterized in that: including bearing inner race and bearing inner race, bearing inner race cover establishes at the bearing inner race, bearing inner race one side is provided with the apron, it has the transition ring to buckle towards bearing inner race lateral wall direction on the apron inner wall, be provided with first seal lip on the transition ring, first seal lip sets up with bearing inner race lateral wall interference fit, it has the cooperation ring to extend towards bearing inner race periphery wall direction on the apron inner wall, vertically on the bearing inner race periphery wall seted up first cooperation groove, first cooperation groove is cyclic annular setting, the cooperation ring has the second seal lip towards first cooperation groove direction extension, the second seal lip inserts first cooperation groove and second seal lip outer wall and first cooperation inslot inner wall clearance fit sets up.

2. A tapered roller bearing sealing structure according to claim 1, wherein: the bearing inner race periphery wall slopes to have seted up second cooperation groove, second cooperation groove is cyclic annular setting, the cooperation ring has third seal lip towards second cooperation groove direction extension, third seal lip inserts second cooperation groove and third seal lip outer wall and second cooperation inslot wall clearance fit setting.

3. A tapered roller bearing sealing structure according to claim 1, wherein: the first seal lip is composed of a transverse lip and a vertical lip, one end of the transverse lip is connected with the side wall of the transition ring, the other end of the transverse lip is connected with the vertical lip, and the side wall of the vertical lip is in interference fit with the side wall of the bearing outer ring.

4. A tapered roller bearing sealing structure according to claim 1, wherein: the cover plate is made of metal materials.