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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.

Inactive Publication Date: 2012-04-25
BROSE FAHRZEUGTEILE GMBH & CO KG HALLSTADT (DE)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drawback of this solution is the increased component and assembly costs

Method used

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  • Actuator, in particular for a motor vehicle
  • Actuator, in particular for a motor vehicle
  • Actuator, in particular for a motor vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] figure 1 A sectional view of an exemplary actuating drive 1 with a gearbox unit 2 and a motor unit 8 is shown. The gearbox unit 2 has a gearbox housing 12 in which a worm wheel 4 is accommodated and a worm shaft 4 which engages in the worm wheel 4 . The motor unit 8 consists of a motor housing 11 , a rotor 9 accommodated therein with a drive shaft 5 , and a bearing housing 18 at the drive end of the motor unit 8 . The worm shaft 3 is situated on the free end of the drive shaft 5 , which is driven by the motor unit 8 and is partially accommodated in the motor housing 11 . On the motor side, the drive shaft 5 is guided in a bearing 6 opposite the gearbox unit 2 and in a motor end bearing 10 . exist figure 1 In the embodiment of the present invention, the drive shaft 5 is formed in one piece. A two-part embodiment of the drive shaft 5 is likewise conceivable, which has a motor shaft and a transmission shaft and a connection therebetween.

[0041] figure 2 shows a co...

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PUM

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Abstract

The actuator has a gear unit with a gear housing and a motor unit with a motor housing and an internally located rotor with a drive shaft, and a cylindrical bearing housing on the drive side. The bearing housing protrudes, along with a bearing and the drive shaft ducted therein, into an opening in the gear housing. The motor housing is flange-mounted, along with a drive shaft mounted therein, to the gear housing. The outside of the bearing housing and the inside of the opening in the gear housing have been geometrically mutually harmonized such that clamping points and tension-free places will form between them when the actuator has been assembled. The pretensioning force resulting therefrom produces a permanent frictional engagement between the outer circumference of the bearing and the bearing support or the bearing shell located opposite it. The operating life of an actuator of such type is increased. The actuator is in particular applied for a motor vehicle.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/116F16H57/021F16H57/039
CPCF16C23/04F16H57/039F16H1/16F16H2057/0213F16H57/021Y10T74/18792Y10T74/2186Y10T74/19828
Inventor G·菲尔内克斯K·扎普斯
Owner BROSE FAHRZEUGTEILE GMBH & CO KG HALLSTADT (DE)
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