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Actuator drive

A driving device and transmission technology, applied in the directions of transmission device parts, electromechanical devices, hoisting devices, etc., can solve the problems of high cost and achieve the effect of simple structure

Inactive Publication Date: 2016-12-14
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known axial play compensators consist of several parts and are relatively expensive to construct

Method used

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Examples

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Embodiment Construction

[0015] exist figure 1 A first transmission drive 10 according to the invention is shown in a greatly simplified manner, as it is used in a motor vehicle as part of a comfort drive. A comfort drive is understood here to mean, for example, a seat adjustment drive, a window lift drive or the like.

[0016] The transmission drive 10 has a housing 11 in which a transmission wheel 12 is arranged rotatably in a shaft 13 . In the exemplary embodiment shown, the transmission wheel 12 is part of a single-stage transmission, but the transmission can also have several gears or transmission wheels and thus have a multi-stage design. An element (not shown) of the comfort drive, for example a seat or a glass, is driven at least indirectly by means of the transmission wheel 12 , wherein the transmission wheel 12 is movable in two rotational directions .

[0017] The transmission wheel 12 is driven by means of an electric motor 15 having an armature shaft 16 which is rotatably mounted in t...

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PUM

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Abstract

The invention relates to a geared driving device (10; 10a to 10d), with a housing (11) in which an electric motor (15) which is at least indirectly mounted in an armature shaft (16; 16a to 16d) is arranged, wherein the armature shaft (16; 16a to 16d) interacts with a gearwheel (12) via a toothing region (30; 30a to 30d), with at least two bearing devices (18, 20) which are arranged on opposite end regions of the armature shaft (16; 16a to 16d) and of which the first bearing device (18) is acted upon by the armature shaft (16; 16a to 16d) with an axial force and bears against a housing-mounted first stop (26; 53), and with an axial play compensating device (100) which is arranged in a manner operatively connected to the armature shaft (16; 16a to 16d) and acts upon the second bearing device (20), which has an inner ring (32) and an outer ring (33) with axial force against a second housing-mounted stop (35; 37). According to the invention, the axial play compensating device (100) is arranged at least indirectly in operative connection with the inner ring (32) of the second bearing device (20).

Description

technical field [0001] The invention relates to a transmission drive device. Background technique [0002] A transmission drive of this type is known from DE 10 2009 020 283 A1. It is used in particular in transmission drives which adjust an element, such as a seat or a window pane, via a transmission wheel such that the axial play of the shaft cooperating with said transmission wheel Minimize, because otherwise when the direction of rotation of the shaft is reversed, noise will be generated, which may cause a loss of comfort. The known transmission drive has an armature shaft supported in two bearing arrangements, wherein an axial play compensation device is provided which faces a second shaft arranged between the drive motor and the transmission wheel. The outer ring of the bearing arrangement rests, which in turn presses with its inner ring against a sleeve ring on the armature shaft. In contrast, the first bearing arrangement is accommodated positively in an end regio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/08F16H55/24
CPCH02K7/081F16H57/039F16H2057/02082F16H2057/0213
Inventor A.哈维希霍斯特S.施托伊雷尔
Owner ROBERT BOSCH GMBH