Stepping motor having a rigid swashplate which is supported in a rotationally fixed manner

摘要

In the case of stepping motors having a rigid swashplate which is supported in a rotationally fixed manner, which stepping motors are used essentially as actuating motors with a high positioning accuracy, in order to increase the drive torque while maintaining sufficient stepping speeds, the path on which axial forces act on the swashplate is intended to be enlarged. For this purpose, a constantly energised magnetic circuit which is connected to the stationary part of the motor or of the swashplate is allocated to a plurality of coils which are driven in an electrically intermittent manner and are connected to the swashplate or to a stationary part of the motor opposite the swashplate, in the field of which magnetic circuit the corresponding coil is arranged such that it can move mainly axially in such a manner that its turns are at least partially located in this field. <IMAGE>