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A compound transition structure and processing method of oblique line and r of cylindrical rolling element

A transitional structure and processing method technology, applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as unreasonable chamfering structure of rolling elements, stress concentration, etc., achieve technical quality problems to prolong, eliminate stress concentration, improve The effect of service life

Active Publication Date: 2017-07-11
WAFANGDIAN GUANGYANG BEARING GRP
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Problems solved by technology

However, the early fatigue that occurs at the edge of the chamfer of the rolling element is related to the stress concentration caused by the unreasonable structure of the chamfer of the rolling element

Method used

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  • A compound transition structure and processing method of oblique line and r of cylindrical rolling element

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Embodiment Construction

[0013] In order to gain an in-depth understanding of a cylindrical rolling element oblique line and R compound transition structure, combined with figure 1 The description is as follows: It includes one end surface convex arc R1, one end surface chamfer R2, rolling body diameter convex arc R3, two end surface chamfers R4, two end surface convex arcs R5, one end surface angle tangent line L1, one end surface diameter angle The tangent line L2, the diameter angle tangent line L3 of the two end faces, the angle tangent line L4 of the two end faces; the cylindrical surface of the rolling element forms a convex arc R1 of one end face and a tangent line L1 of an end face angle, and the convex arc R5 of the two end faces is tangent to the angle tangent line L4 of the two end faces. Tangent; one end face chamfer R2 is tangent to one end face angle tangent L1 and one end face diameter angle tangent L2, and two end face chamfers R4 is tangent to two end face angle tangents L4 and two end...

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Abstract

The invention relates to a cylindrical rolling body slant line and R compound transition structure and processing method, belonging to the field of cylindrical rolling bearing processing; the cylindrical rolling body slant line and R compound transition structure is used to improve the service life of the rolling body, thereby improving the use of the bearing life. Eliminate stress concentration, eliminate the technical quality problems of early fatigue of rolling elements, prolong the service life of bearings, bring benefits to customers, and use forming tools in the state of quenching HRC60 to directly carve the crown and the arc into shape. Very efficient and good quality. Save electricity and save labor hours. The rolling element with this structure has no stress concentration point during work, and it cannot produce uneven contact between the rolling element and the raceway. The end surface is convex and arc-shaped, so it can rotate flexibly and eliminate the phenomenon of jamming.

Description

technical field [0001] The invention relates to a cylindrical rolling body oblique line and R composite transition structure and processing method, belonging to the field of cylindrical rolling bearing processing. Background technique [0002] At present, cylindrical rolling bearings are widely used in the machinery industry, and there are many quality problems reported by customers. In industries such as mines, steel rolling, and high-speed railways that have extremely high requirements on bearing life, early damage to the rolling elements of bearings is reported, especially in rolling bearings. Early fatigue occurs on the body surface and edges prematurely, resulting in bearing damage, causing machine damage and fatal accidents. Although the bearing is damaged, the economic loss is very serious. There are many reasons for the early fatigue quality of rolling elements, such as material problems, surface accuracy problems, service conditions, and product structure problems. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/36B23P15/00
Inventor 吕世友陈京华宋其玲
Owner WAFANGDIAN GUANGYANG BEARING GRP
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