Rotary lifting device
Abstract:
A rotary lifting device comprises a rotary lifting shaft having a longitudinal axis, a linear motor for moving the rotary lifting shaft in the direction of its longitudinal axis, and a rotary motor for rotating the rotary lifting shaft about its longitudinal axis. The rotary motor has a stator and a hollow rotor, through which the rotary lifting shaft extends. The hollow rotor is rotationally kinematically coupled to the rotary lifting shaft. The linear motor is arranged stationary relative to the rotary motor and has an armature having a motion axis along which the armature is supported so as to be linearly movable. The armature is kinematically coupled to the rotary lifting shaft with respect to the movement of the rotary lifting shaft in the direction of its longitudinal axis at a first longitudinal end of the rotary lifting shaft. The linear motor is arranged laterally beside the rotary motor, with the longitudinal axis of the rotary lifting shaft being arranged parallel to the axis of motion of the armature of the linear motor.
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