Magnetic worm drive for contactless torque transmission for two shafts at right angles - spaced from each other so that magnetised worm and worm wheel face each other with variable polarity at periphery

摘要

The worm wheel (1) is magnetised with multi-poles of alternating polarity at its circumference. The worm (2) is spindle shaped and is magnetised with polarity alternating axially. The magnetic poles of the worm wheel and the worm have the same pitch. The magnetising of the individual poles of the worm wheel (1) is carried out obliquely so that the angle of skew coincides with the pitch of the work. The worm wheel and the worm are made of soft magnetic material on which magnet poles of permanent magnetic material are applied. ADVANTAGE - Facilitates transmission of high torque, and drive can be produced at relatively small mfg. cost.