Ball bearing reliability design method

A design method, ball bearing technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as lack of principled solutions

Inactive Publication Date: 2017-04-12
梁明轩
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Problems solved by technology

In addition, there have always been some urgent technical problems in the reliability design of ball bearings, and there is a lack of practical

Method used

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  • Ball bearing reliability design method

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Embodiment 1

[0076] A reliability design method for ball bearings,

[0077] (1) The reliability design method of the ball bearing is based on the following premise: it is considered that the contact between the rolling elements of the rolling bearing and the raceways of the inner and outer rings satisfies the Hertz (Hertz) contact theory, and the contact type between the rolling elements and the raceways of the inner and outer rings of the bearing is point contact or / and line contact, in which the ball bearing rolling element and the inner and outer rings belong to point contact, and the contact between cylindrical and tapered roller bearings belongs to line contact; the relevant specific requirements of Hertz (Hertz) contact theory are as follows:

[0078] ①In ball bearings, the contact between the rolling elements and the raceways of the inner and outer rings is a point contact. Under the action of load Q, the contact point gradually expands into an elliptical contact surface. At the ce...

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Abstract

A ball bearing reliability design method is based on the following prerequisites: 1, the contact between an antifriction bearing rolling body and internal/external raceway satisfies the Hertz contact theory, and the contact type between the rolling body and the bearing internal/external raceway is point contact or/and line contact; 2, the ball bearing reliability design method satisfies the following requirements: firstly building a deep groove ball bearing flexible multi-body contact dynamics model, simulating and parsing a deep groove ball bearing rotation process so as to obtain each part angular velocity and dynamic contact impact stress changing rules, and using obtained data to finish the ball bearing reliability design. The invention provides the reference method for ball bearing reliability design and fatigue life research; related principles can be promoted to all transplantable related technical fields; the ball bearing reliability design method has large latent economy value and social value.

Description

technical field [0001] The invention relates to the field of reliability design of ball bearings and related application technologies, and in particular provides a method for reliability design of ball bearings. Background technique [0002] When the rolling bearing rotates, its rolling elements come into contact with the raceway, resulting in various rotational movements and frictions. The stiffness, load capacity and even service life of the bearing mainly depend on the working conditions of the bearing and the contact between the rolling elements and the raceway properties, so the research on the contact dynamics of rolling bearings has become an important research direction for researchers (see literature: Xiong Xiaojin, Zhang Xiaokun, etc. Nonlinear finite element analysis of rolling bearing contact [J]. Journal of Testing Technology, 2009, 23(1 ): 23-27.). In addition, there have always been some urgent technical problems in the reliability design of ball bearings, an...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 梁明轩
Owner 梁明轩
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