US 6,713,917 B2 · Drive device

Abstract

A drive device includes an electric drive motor, a housing, at least one shaft which is driven by the drive motor, and a compensating member for compensating the axial clearance of the shaft. A spring ring disk, which can be expanded radially counter to an elastic force and has two stopping surfaces radially extending towards each other on the axis of the shaft in the form of a wedge, is arranged on the shaft as the compensating member. The shaft has a ring-shaped projection which matches one of stopping surfaces and the housing has an annular collar which matches the other stopping surface. The spring ring disc is pre-tensed and arranged in between the projection and the annular collar.

Claims14

Dependent claims

A drive device comprising:

an electric drive motor;
a housings;
at least one shaft driven by the drive motor, the shaft having a compensating means to compensate for axial play of the shaft;
a tapered thrust bearing having two contact surfaces tapering radially toward the shaft axis, the tapered thrust bearing positioned on the shafts for compensating axial play, and operable for radially expanding against a spring force, the shaft having an annular projection for engaging one of the contact surfaces and the housing having an annular collar for corresponding to the other contact surface, the tapered thrust bearing positioned under pre-load between the annular projection and the annular collar.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/049,193Filed 17 Jun 2002

Priority

DE 100 27 9206 Jun 2000

Published

US 2002/0163267 A17 Nov 2002

Granted

30 Mar 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

F16H 57/021
Gearboxes; Mounting gearing therein: shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
B60S 1/16
Characterised by the drive: means for transmitting drive
F16C 25/04
Sliding-contact bearings: self-adjusting
H02K 7/081
Structural association with bearings: specially adapted for worm gear drives

Drive device

Life of this patent

Drive device

Life of this patent

Abstract

Claims14