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Bearing arrangements for armature shafts of transmission drive units and transmission drive units

A technology for bearing devices and drive units, which is applied to bearing components, electromechanical devices, shafts and bearings, and can solve problems such as cost

Active Publication Date: 2018-07-17
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The provision of additional components (securing rings or clamping rings) for securing the bearing body axially in the receptacle represents an additional effort, especially with regard to assembly.

Method used

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  • Bearing arrangements for armature shafts of transmission drive units and transmission drive units
  • Bearing arrangements for armature shafts of transmission drive units and transmission drive units
  • Bearing arrangements for armature shafts of transmission drive units and transmission drive units

Examples

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Embodiment Construction

[0019] exist figure 1 A motor housing 1 is shown as a component of a transmission drive unit 100, except for the motor housing, the rest of the electric motor is not shown in the figure, the electric motor is used as a window lift drive, Seat adjustment drives and the like are used in a motor vehicle. The motor housing 1 is connected end-face to a transmission housing (not shown), in which a transmission is arranged, the driven element of which is usually designed as a driven shaft for at least indirect Adjust a component (seat, window, etc.) Arranged within the motor housing 1 are the components of the electric motor, which can be electrically connected, in particular via a plug connection 2 arranged on the motor housing 1 , to a cable harness of the motor vehicle. .

[0020] An armature shaft 5 protrudes from the end face of the motor housing 1 facing the transmission housing, which armature shaft has a drive worm 6 over part of its length, which has a helical toothing 7...

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Abstract

The device has a retainer for a bearing body (15) for supporting an armature shaft (5) and arranged in an area of a brush carrier (10). The body lies at a contact surface of the retainer in a form-fit manner. The body is fixedly accommodated in the retainer by a clamping connection, where the connection comprises clamping geometry for insertion of the body into the retainer in a radially and elastically expandable manner. The connection is radially engaged into the retainer in an axial end position of the body and force-loaded axially in the direction against the contact surface.

Description

technical field [0001] The invention relates to a bearing arrangement for an armature shaft of a transmission drive unit. Furthermore, the invention relates to a transmission drive unit using a bearing arrangement according to the invention. Background technique [0002] Bearing arrangements according to the invention are known from practice in transmission drive units, which are used in motor vehicles, for example, in window regulators, seat adjustment drives, sunroof drives and the like. Such transmission drive units or their armature shafts are usually supported in three bearing points, wherein the two bearing points are located with a relatively small axial distance on the two end faces of the drive motor which is designed as an electric motor, and when present In the event of transverse forces acting on a worm toothing of the armature shaft, a third bearing point supports the armature shaft in a region spaced from the drive motor. The known bearing arrangement is arra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C35/00
CPCH02K5/148H02K7/081
Inventor L-D.安丁
Owner ROBERT BOSCH GMBH
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