Ball Screw Drive Having Overload Clutch
AssigneeSiemens Aktiengesellschaft
InventorsSimon Abraham, Michael Beyer
Life of this patent
Estimating the term…
Abstract
A ball screw drive has a housing in which a spindle nut is arranged on a ball screw spindle. An overload clutch disengages when a force acting on the ball screw spindle reaches a release force. A preloading device, with at least one adjusting member, can be set to a preloading force and acts on the overload clutch. A moveable pressure element is provided on which the preloading device can engage in order to transmit the preloading force to the overload clutch. The housing is of single-part design and the pressure element is disposed so as to slide on a housing face and on a peripheral face of the spindle nut.
Claims12
1-11. (canceled)
A ball screw device, comprising:
- a housing formed in one piece;
- a spindle nut disposed on a ball screw spindle in said housing, said spindle nut having a peripheral surface;
- an overload clutch configured to trip when a force acting on said ball screw spindle reaches a given tripping force;
- a preloading device to be set, by way of at least one setting member, to a preloading force and acting on said overload clutch;
- and
- at least one moving pressure element to be contacted by said preloading device for transmitting the preloading force to said overload clutch, said at least one pressure element being disposed to slide along a surface of said housing and along said peripheral surface of said spindle nut.
Dependencies are inferred from the claim text.