Actuator, in particular for a motor vehicle

A servo drive, drive shaft technology, applied in transmissions, transmission parts, gear transmissions, etc., can solve the problems of increasing component costs and assembly costs, and achieve the effect of improving service life and reducing noise.
CN1897416AInactive Publication Date: 2007-01-17BROSE FAHRZEUGTEILE GMBH & CO KG HALLSTADT (DE)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BROSE FAHRZEUGTEILE GMBH & CO KG HALLSTADT (DE)
Publication Date
2007-01-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The actuator has a cylindrical bearing housing (18) protruding, along with a bearing and a drive shaft of a rotor, into an opening (7) in a gear housing (21) of a gear unit (2). An outer side of the bearing housing and an inner side of the opening are geometrically mutually harmonized such that clamping points (14, 15) and tension-free places (29) are formed between the bearing housing and the gear housing, when the actuator is assembled. The clamping points exert pre-tensioning force on the bearing through the bearing housing.
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Description

technical field

[0001] The invention relates to an actuating drive having a gearbox unit and a motor unit. The gearbox unit has a gearbox housing and the motor unit has a motor housing, an inner rotor with a drive shaft and, in particular, a cylindrical bearing housing at the drive end. The bearing housing projects into an opening in the gearbox housing together with a bearing and the drive shaft guided therein. The invention also relates to the application of the servo drive device in automobiles. Background technique

[0002] Actuating drives are already known, such as window pane drives or drives for actuating sunroofs. They have a gearbox unit and a motor unit. The gearbox unit has a worm gear and a transmission shaft formed by the worm gear shaft. The motor unit consists of a motor housing, a brush housing and an integrated rotor. The rotor here consists of a so-called rotor pack, which has a number of lamellas fastened to the motor shaft. The transmission shaft a...

Claims

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