CN209959717U

CN209959717U - Tapered roller bearing with drawing groove on inner ring

Info

Publication number: CN209959717U
Application number: CN201920261549.4U
Authority: CN
Inventors: 孙朝阳; 陆晓峰; 徐超
Original assignee: QIANCHAO BEARING CO Ltd; Wanxiang Group Corp
Current assignee: QIANCHAO BEARING CO Ltd; Wanxiang Group Corp
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-01-17
Anticipated expiration: 2029-03-01

Abstract

The utility model relates to a tapered roller bearing in groove is drawn in inner circle area mainly includes the bearing main part, and the bearing main part cover is epaxial, and bearing main part from interior to exterior includes bearing inner circle, roller and bearing inner race in proper order, is equipped with the holder in the roller, and the external diameter department of the big terminal surface of bearing inner circle is equipped with draws the groove. The utility model discloses profitable effect is: the utility model discloses a structure makes at the bearing dismantlement in-process, and direct contact can not take place for roller and bearing inner race to avoided bearing inner race raceway to produce the possibility of indentation, reduced the direct damage that the dismantlement process caused the bearing.

Description

Tapered roller bearing with drawing groove on inner ring

Technical Field

The utility model relates to a tapered roller bearing structure, especially a tapered roller bearing in groove is drawn in inner circle area.

Background

The utility model discloses an application area is motor transmission, main reducer, and a root epaxial adoption two sets of tapered roller bearing support is "O" type and pairs the use, realizes the control to bearing pretension volume through selecting the space ring of joining in marriage not co-altitude. In the process of selecting and matching the space ring, the problem of disassembling the bearing for many times is inevitable.

When the bearing is disassembled in the existing structure, the mode of supporting an outer ring and pressing a shaft is generally adopted, on one hand, because a certain interference magnitude exists between the inner ring and the shaft, a large enough axial load is needed, and the inner ring can be disassembled from the shaft; on the other hand, during the process of loading the axial force, certain impact inevitably exists. Under the combined action of the two factors, the contact stress of the roller and the outer ring raceway is very large, so that the outer ring raceway generates unrecoverable plastic deformation. Leading to increased bearing vibration, reduced service life and bearing use.

Disclosure of Invention

The utility model discloses solve above-mentioned prior art's shortcoming, provide a simple structure, the tapered roller bearing in groove is drawn in inner circle area that the practicality is strong.

The utility model provides a technical scheme that its technical problem adopted: the tapered roller bearing with the drawing groove on the inner ring mainly comprises a bearing main body, wherein the bearing main body is sleeved on a shaft and sequentially comprises a bearing inner ring, a roller and a bearing outer ring from inside to outside, a retainer is arranged in the roller, and the drawing groove is arranged at the outer diameter of the large end face of the bearing inner ring.

The number of the drawing grooves is 2 or more than two.

The utility model discloses profitable effect is: the utility model discloses a structure makes at the bearing dismantlement in-process, and direct contact can not take place for roller and bearing inner race to avoided bearing inner race raceway to produce the possibility of indentation, reduced the direct damage that the dismantlement process caused the bearing.

Drawings

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

Description of reference numerals: the bearing comprises a bearing outer ring 1, a bearing inner ring 2, rollers 3, a retainer 4, a drawing groove 5 and a shaft 6.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in the figure, the tapered roller bearing with the drawing groove on the inner ring mainly comprises a bearing main body, wherein the bearing main body is sleeved on a shaft 6 and sequentially comprises a bearing inner ring 2, a roller 3 and a bearing outer ring 1 from inside to outside, a retainer 4 is arranged in the roller 3, and the drawing groove 5 is arranged at the outer diameter of the large end face of the bearing inner ring 2. The number of the drawing grooves 5 is 2 or more than two, the number is not equal, grooves can be dug along the circumferential direction, and the size and the depth of the grooves are designed according to the size of the bearing. When the bearing is disassembled, other drawing accessories are hooked on the drawing groove 5 of the bearing inner ring 2, the bearing inner ring 2 is separated from the shaft 6 in a mode of supporting the shaft and drawing the inner ring, and the roller 3 and the bearing outer ring 1 cannot be in direct contact in the disassembling process, so that overlarge contact stress generated by the roller 3 and a raceway of the bearing outer ring 1 in the bearing disassembling process is avoided.

The drawing groove is arranged at the outer diameter of the large end face of the inner ring, so that the bearing dismounting mode is changed from the traditional 'supporting outer ring and pressing shaft' into 'supporting shaft and drawing inner ring', and in the bearing dismounting process, the roller is not in direct contact with an outer ring raceway, so that an outer ring raceway indentation formed in the dismounting process is avoided.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides an inner circle area draws tapered roller bearing in groove, mainly includes the bearing main part, characterized by: the bearing main body is sleeved on the shaft (6) and sequentially comprises a bearing inner ring (2), a roller (3) and a bearing outer ring (1) from inside to outside, a retainer (4) is arranged in the roller (3), and a drawing groove (5) is arranged at the outer diameter of the large end face of the bearing inner ring (2).

2. The tapered roller bearing with the drawn groove in the inner ring according to claim 1, wherein: the number of the drawing grooves (5) is 2 or more than two.