Method for controlling discretization of rolling bodies of retainer-free bearing

Abstract

The invention relates to the technical field of retainer-free ball bearings, in particular to a method for controlling discretization of rolling elements of a retainer-free bearing, which comprises the following steps of: 1) establishing an ADAMS user creation interface, inputting relevant parameters of the retainer-free ball bearing, and generating the retainer-free ball bearing; 2) establishing an ADAMS contact creation interface, inputting contact parameters between the bearing inner ring and the rolling bodies and between the bearing outer ring and the rolling bodies, and importing a command stream program to modify material attributes of all the rolling bodies; 3) aiming at the simulated revolution track and rotation track of the rolling body, acquiring the revolution track of the rolling body of the retainer-free bearing and the rotation track of a certain point on a ball relative to the center of the ball; and 4) evaluating and analyzing the revolution track of the rolling body and the rotation track of a certain point on the ball relative to the center of the ball. Through simulation research on rotation and revolution of the rolling bodies, various parameters of the retainer-free bearing can be conveniently modified, so that the motion paths of the rolling bodies are changed, and discretization among the rolling bodies is improved.

Description

technical field [0001] The invention relates to the technical field of cageless ball bearings, in particular to a method for controlling the dispersion of rolling bodies in cageless bearings. Background technique [0002] During the operation of a bearing with a cage, there are collisions and frictions between the rolling elements and the cage, resulting in wear and tear of the cage. However, the existing full complement ball bearing removes the cage, but because the distance between the rolling elements is too small, there will be continuous collisions, and it is only suitable for low-speed working conditions. The existing cageless bearings are mostly used as support bearings of magnetic bearings. The cageless bearings remove the cage and have moderate intervals between the rolling elements, but there is still the problem of collision and friction between the rolling elements. [0003] Because the rotating speed of the bearing is too high, it is difficult to observe and me...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the existing bearing simulation involving the establishment and import of the bearing model, the setting of the contact between the parts, the modification of the material, and the setting of the grid, resulting in a long operation and simulation time , it is necessary to learn modeling software and simulation software. The present invention provides a method for controlling the discretization of the rolling elements of a cageless bearing. A user-defined interactive interface is established through a command flow program, which simplifies the steps of establishing a cageless bearing model. Studying the rotation and revolution of rolling elements through simulation facilitates the modification of various parameters of cageless bearings, thereby changing the motion path of rolling elements and improving the dispersion between multiple rolling elements

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