Elektromotor mit relativ zueinander drehbar und axial verschiebbar gelagertem Rotor und Stator

摘要

The invention relates to a stepping motor which has a further excitation system in addition to the excitation system for rotating the rotor step by step. By the indirect or direct action of the magnetic field produced by the second excitation system on the rotor, which is supported such that it can be displaced relative to the stator in the axial direction, it becomes possible to carry out a movement at right angles to the rotational movement, in addition to said step by step rotational movement. The two excitation systems can be controlled independently of one another, so that the step by step rotational movement can be carried out in any axial position of the rotor, and an axial displacement of the rotor can also be carried out during the rotational movement or when the rotor is stationary.