Drive device for several units of a machine
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsVolker Thomas, Christian Harzbecker
Life of this patent
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Abstract
The inventive drive device for several units of a machine has an inertia drive with an inertia drive spindle (1) driven by a motor, and several inertia drive nuts (2), the nuts being fitted on the inertia drive spindle (1) and being allocated to the units. The inertia drive nuts (2) are each arranged in the housings of the units in such a way that they can turn but cannot be displaced axially. During the rest phase of a particular unit, the inertia drive nut (2) is solidly connected to the inertia drive spindle (1) with a first positive and/or nonpositive fit. For the movement phase of the aggregate, the nut (2) is disconnected from the spindle (1) and is solidly connected to the housing with a second positive and/or nonpositive fit.
Claims11
A drive device for several units of a machine, each unit having a rest stage and a moving stage, the drive device comprising an inertia drive comprising a rolling inertia drive spindle driven by a motor and several inertia drive nuts which are mounted on the inertia drive spindle, each nut corresponds to one of the respective units and is mounted rotatably but axially non-displaceably in a housing of its respective unit, each unit comprises a first connection to the inertia drive spindle and a second connection to the inertia drive spindle, wherein in the rest stage of each respective unit, its allocated inertia drive nut is rotatable relative to the unit by the first connection to the inertia drive spindle and for the movement stage of the respective unit the first connection is released and the inertia drive nut can be operatively connected to the housing of the respective unit by the second connection, wherein the first connection is a force-locking connection which is configured as a brake, the force-locking connection comprising an axially displaceable sleeve arranged around the inertia drive spindle and the sleeve comprising at its circumference thread webs which engage in thread turns of the spindle and by which force locking can be produced.
Dependencies are inferred from the claim text.