Metal-rubber ring combination support high-speed rotating system for magnetic suspension bearing

Abstract

The invention provides a magnetic suspension bearing metal rubber ring combined bearing high-speed rotation system device, belonging to the field of magnetic suspension technique; the device comprises a rotor component, a radial magnetic suspension bearing component, an axial magnetic suspension bearing component and a driving motor, wherein, the radial magnetic suspension bearing is supported by a radial magnetic bearing seat; the device is characterized in that: the radial magnetic suspension bearing seat is supported by a metal rubber ring seat through a metal rubber ring; the magnetic suspension bearing metal rubber ring combined bearing component can effectively reduce the vibration when a rotator crosses the first-order bending modal frequency and improve the dynamic performance of the system. The technical proposal is simple and feasible and has good effect; the requirement of high-speed, heavy-load and slightness development of the rotation mechanical rotor leads the mechanical dynamics problems to be outstanding increasingly; the research result of the device can provide clews and references for solving relative practical problems.

Description

technical field [0001] The invention relates to a metal-rubber ring combination supporting high-speed rotation system device of a magnetic suspension bearing, which belongs to the technical field of magnetic suspension. Background technique [0002] Compared with traditional bearings, magnetic suspension bearings have no contact with the rotor, support low power consumption, and have a long service life; do not need lubrication and sealing, and can be used in special environments such as high and low temperature for a long time; low maintenance costs, easy to actively control, etc., so It is considered to be a revolution in support technology, and it is the only active support device put into practical use at present. Magnetic suspension bearings are mainly used in rigid rotor systems. Due to the requirements of high-speed, heavy-load, and slender development of rotating machinery rotors, they are gradually being extended to flexible rotor systems. [0003] However, the rel...

AI Technical Summary

Problems solved by technology

[0005] Some research results at home and abroad show that using modern control theory or robust control theory to design a suitable control scheme can improve the dynamic performance of the system, but it is not yet possible to greatly improve the support damping of the system in subcritical and supercritical operation. Moreover, most of the research objects are experimental systems, and there are not many practical applications.

In 2000, Hirochika Ueyama, a researcher at the R&D Center of Japan’s Koyo Co., Ltd., a well-known bearing manufacturing company, published a paper at the 7th International Conference on Magnetic Suspension Bearings held in Switzerland. ∞ , μ theory, etc.) can solve this problem, but it is still a challenging problem

Images