Rack-and-pinion motors: hybrid of linear and rotary machines
作者:
E.R.Laithwaite,
M.T.Hardy,
期刊:
Proceedings of the Institution of Electrical Engineers
(IET Available online 1970)
卷期:
Volume 117,
issue 6
页码: 1105-1112
年代: 1970
DOI:10.1049/piee.1970.0215
出版商: IEE
数据来源: IET
摘要:
The field over an open-sided linear motor contains a rotating component which can be used to spin rotors of a variety of types. If the field of the linear motor is visualised as a magnetic ‘river’, the motion is analogous to a mechanical rack and pinion. The paper concentrates on reluctance- and hysteresis-type rotors which can develop substantial torque in small sizes. It is shown that the possible acceleration of steel rotors increases with decrease in size. The effect of linear-motor fields on iron and steel filings is investigated and a demonstration of rack-and-pinion action using a permanent magnet is described.
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