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Bearing protection device, magnetic suspension bearing and system thereof

A bearing protection device and magnetic technology, applied in the direction of bearing, shaft and bearing, electromechanical device, etc., can solve the problems of protecting bearing damage, rotor damage, reducing bearing service life, etc., to avoid collision, simple structure and convenient operation.

Active Publication Date: 2022-03-04
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the rotor falls, since the gap between the rotor and the rolling bearing cannot be eliminated, the bearing will be greatly impacted and vibrated by the rotor, which will damage the protective bearing, and at the same time cause certain damage to the rotor, reducing the service life of the bearing

Method used

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  • Bearing protection device, magnetic suspension bearing and system thereof
  • Bearing protection device, magnetic suspension bearing and system thereof
  • Bearing protection device, magnetic suspension bearing and system thereof

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Embodiment Construction

[0033] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0034] Existing magnetic levitation systems all include magnetic bearings and protective bearings to stabilize the rotor. The protective bearings are mainly used to support the rotor when the magnetic bearings are not working. Currently, the protective bearings mainly use rolling bearings, and there is no gap between the rolling bearings...

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Abstract

Related to the technical field of bearing protection equipment, the application discloses a bearing protection device, a magnetic suspension bearing and a system thereof. The bearing protection device is assembled in the motor casing and sleeved outside the motor rotor, and also includes a magnetic support mechanism and an electromagnetic assembly. The magnetic support mechanism is movably assembled between the motor rotor and the motor casing, and the electromagnetic assembly is assembled in the motor. The motor housing and the electromagnetic component adjust the radial distance of the magnetic support mechanism relative to the motor rotor by controlling the interaction force with the magnetic support mechanism in the radial direction. Compared with the prior art, in the present application, the radial distance between the electronic rotor and the magnetic support mechanism is adjusted by the interaction force between the magnetic support mechanism and the electromagnetic assembly along the radial direction of the motor rotor, and then the distance between the electronic rotor and the magnetic support mechanism is adjusted. The volume of the overall structure can be simplified, and the overall reliability can be improved. In addition, the purpose of eliminating the radial gap can be directly facilitated, and at the same time, the axial interference can be effectively avoided.

Description

technical field [0001] The present application relates to the technical field of bearing protection equipment, in particular, to a bearing protection device, a magnetic suspension bearing and a system thereof. Background technique [0002] The magnetic levitation system usually includes a magnetic bearing for stabilizing the rotor and a protection bearing for supporting the rotor when the magnetic bearing does not work or becomes unstable. The protection bearing mostly uses rolling bearings with high reliability. At present, most of the technical features applied to the magnetic levitation products in the market are that the outer ring of the bearing is fixed on the shell, and there is a certain amount of clearance between the inner ring and the suspended rotor. There are no other auxiliary components between the rolling bearing and the rotor. The protective bearing mainly plays the role of rotor support. Prevent the rotor from contacting and colliding with the magnetic bear...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/16F16C32/04
CPCH02K5/165F16C32/0442F16C32/0465F16C32/0444F16C32/0493
Inventor 梁豪龚高李欣王建辉邓明星
Owner GREE ELECTRIC APPLIANCES INC
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