Self-adjustment type five-freedom-degree magnetic bearing

Abstract

The invention discloses a self-adjustment type five-freedom-degree magnetic bearing. The self-adjustment type five-freedom-degree magnetic bearing comprises outer stator cores, inner stator cores and a cylindrical rotor. The cylindrical rotor is sequentially sleeved with the cylindrical inner stator cores and the cylindrical outer stator cores from the inner circle to the outer circle. A tooth socket structure is adopted for the inner stator cores. Four pairs of inner stator teeth are evenly distributed in each inner start core along the circumference. Two pairs of inner stator teeth are oppositely arranged on each inner stator core in the horizontal direction. Two pairs of inner stator teeth are also oppositely arranged on each inner stator core in the vertical direction. The eight inner stator teeth are formed, and a radial suspension winding is wound around each of the eight inner stator teeth. The self-adjustment type five-freedom-degree magnetic bearing solves the problems that when an existing magnetic bearing bears heavy rotors and loads are too large, the torsion of the rotor is too large, and the rotor suspension is influenced; meanwhile, the structure of the five-freedom-degree magnetic bearing is simplified; meanwhile, a control element of the five-freedom-degree magnetic bearing is omitted; and the self-adjustment type five-freedom-degree magnetic bearing has the beneficial effects that the suspension performance is reliable and the self-adjustment type five-freedom-degree magnetic bearing is easy to control.

Description

technical field [0001] The invention relates to a non-contact magnetic suspension bearing, in particular to a hybrid magnetic bearing with four-degree-of-freedom active suspension control in the radial direction and translational active suspension in the axial direction, which can be used as a rotating part in mechanical equipment such as magnetic suspension motors and wind power generation non-contact support. Background technique [0002] Due to the realization of no mechanical contact and electronic control, the magnetic bearing has the advantages of no friction loss, no need for lubrication and sealing, strong environmental resistance, less heat generation, low power consumption, and high peripheral speed, which makes the magnetic bearing work at high speed, high precision and high cleanliness. and other fields have high application value. Magnetic bearings are divided into active magnetic bearings, passive magnetic bearings and hybrid magnetic bearings. For passive mag...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of insufficient control of the degree of freedom of the radial suspension force of the rotor and high power consumption due to the large radial torsion of the rotor when the existing magnetic bearing is overloaded, and proposes a self-adjusting magnetic bearing.

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