US 8,674,560 B2 · Linear drive module for a rotary/linear drive

Abstract

The aim of the invention is to provide a cost-effective, easily regulated rotary-linear drive. Therefore, the invention provides for the rotary-linear drive to connect a rotary drive (10) to a linear drive module (11). The linear drive module (11) comprises a rotatable drive-side receiving device for receiving a torque from the rotary drive (10). Additionally, the linear drive module has a linear motor, the armature (15) of which is rotatable, is rotated by a stator (14), and comprises an output element for the purpose of driving the shaft (12) in a rotary-linear fashion. To this end, the linear drive module (11) also comprises a coupling device (16) that couples the receiving device and the armature (15) in a rotationally secure but not linear fashion.

Claims10

Dependent claims

A linear drive module, comprising:

a drive-side rotatable reception device receiving a torque from a drive shaft of a rotary drive and releasably connected in fixed rotative engagement to the drive shaft so as to allow attachment of the linear drive module to the rotary drive in a modular set-up;
a linear motor having a stator and a rotor which is movable for rotation, said rotor being moved linearly by the stator and having an output element to drive an output shaft in a rotary/linear manner;
and
a coupling device received inside the rotor, said coupling device connected to the drive shaft via longitudinal grooves, which are formed on the drive shaft, and coupling the reception device and the rotor in fixed rotative engagement, thereby allowing a movement of the rotor in linear direction.

1 more element

Dependencies are inferred from the claim text.

Linear drive module for a rotary/linear drive

Life of this patent

Linear drive module for a rotary/linear drive

Life of this patent

Abstract

Claims10