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Eddy current loss power calculation method of mining permanent magnet coupler

A permanent magnet coupler, eddy current loss technology, applied in the direction of permanent magnet clutch/brake, electric brake/clutch, synchronous motor with static armature and rotating magnet, etc., can solve the problem of low calculation accuracy, large limitations, etc. problems, to achieve the effect of simple calculation, extended life, and high engineering application value

Active Publication Date: 2021-02-26
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] In order to solve the problems of low calculation accuracy and large limitations in the above-mentioned prior art, and overcome the defects of the prior art, the present invention invents a method for calculating and analyzing eddy current loss power based on a mine-used permanent magnetic coupler

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  • Eddy current loss power calculation method of mining permanent magnet coupler
  • Eddy current loss power calculation method of mining permanent magnet coupler
  • Eddy current loss power calculation method of mining permanent magnet coupler

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and technical solutions.

[0040] In this embodiment, a mining permanent magnet coupler with a single-conductor disc structure containing 6 pairs of permanent magnets is selected for power calculation of eddy current loss by selecting a mine-used permanent magnet coupler with an input speed of 1467r / min and a speed difference of 100r / min. For a flowchart of the calculation method, see figure 1 , figure 2 It is a simplified schematic diagram of the equivalent magnetic circuit based on the unilateral structure of the mine permanent magnetic coupler of the present invention.

[0041] The structure of mine permanent magnetic coupler is attached image 3 , The basic size of the mine permanent magnetic coupler is: conductor disk thickness 6mm, conductor disk diameter 330mm, back iron thickness 10mm, permanent magnet thickness 30mm, air gap thickness 10mm, conductor...

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Abstract

The invention discloses an eddy-current loss power calculation method for a mining permanent magnet coupler, belongs to the technical field of permanent magnet transmission, and relates to an eddy-current loss power calculation method for a mining permanent magnet coupler. The method comprises the following steps: establishing a mining permanent magnet coupler magnetic circuit model by adopting anequivalent magnetic circuit principle, respectively calculating the magnetic resistance of each part of a magnetic circuit according to the magnetic circuit model, further solving the numerical valueof the magnetic flux of each part and the magnetic induction intensity of the surface of a conductor disc, and then calculating the output torque and the output power of the mining permanent magnet coupler. According to the principle of conservation of energy, most of the difference between the input power and the output power of the mining permanent magnet coupler is composed of eddy-current loss power, the obtained power difference serves as the power of eddy-current loss, and finally the calculated value of the eddy-current loss power of the mining permanent magnet coupler is obtained. According to the invention,, the method is high in engineering application value, simple in calculation, high in precision and high in practicability, and has important significance in the aspects of service life prolonging, temperature rise control, overload protection and the like of the mining permanent magnet coupler.

Description

technical field [0001] The invention relates to the technical field of permanent magnet transmission, and relates to a method for calculating eddy current loss power of conductor disks of mine permanent magnet couplers Background technique [0002] With the continuous development of my country's mining, electric power, chemical and other industries, the demand for high-power and high-efficiency transmission technology is becoming more and more urgent. In mining, energy and power, etc., high-efficiency and energy-saving transmission technology is the key to efficient transportation. In recent years, permanent magnet coupling transmission technology has been widely concerned by researchers. Due to the effect of electromagnetic field, power transmission between the power end and load end of the mine permanent magnet coupler can be carried out in a non-contact manner, which greatly improves the transmission efficiency. At the same time, the mining permanent magnetic coupler ha...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K49/10H02K21/14
CPCH02K21/14H02K49/108
Inventor 刘巍谭子亮程习康罗唯奇刘思彤逯永康李俊卿张洋
Owner DALIAN UNIV OF TECH
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