LINEAR STEPPING MOTOR Russian patent published in 2001 - IPC

FIELD: actuating motors for industrial robots. SUBSTANCE: motor has cylindrical traction electromagnet core carrying control winding rigidly fixed to electromagnetic lock. Armature is, essentially, set of magnetic circuits made in the form of first, second, and third concentric cylinders entering one into other. First, second, and third taper springs provide for draw-out position of armature. Electromagnetic coupling is built up of two relatively movable first and second guides of first and second electromagnets. The latter carries first and second windings loaded with first and second springs to hold electromagnetic coupling in open position when first and second windings are de-energized. EFFECT: enlarged functional capabilities. 2 dwg