Steering gear

A steering mechanism, longitudinal technology, applied in steering mechanism, power steering mechanism, electric steering mechanism, etc., can solve the problems of complex assembly, undesired mobility of rolling bearings, weakening of bearing sleeves, etc.

Active Publication Date: 2015-12-16
ROBERT BOSCH AUTOMOTIVE STEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Disadvantages in this fixed bearing are the relatively complex production (due to the introduction of longitudinal gaps) and the relatively complicated assembly (due to the required precise orientation of the bearing sleeve relative to the deflection ring)
In addition, the bearing sleeve is structurally weakened by the longitudinal gap, which can lead to undesired movability of the rolling bearing and thus the bearing of the pinion shaft

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] figure 1 The essential components of an embodiment of the steering mechanism according to the invention are shown. The steering mechanism comprises a housing 1 in which a gear 2 and a pinion meshing with the gear 2 are supported. The pinion and the pinion shaft 3 including the pinion are integrally formed in the form of a worm.

[0028] The gear 2 is securely fastened to the steering column 4 or to the output shaft of the steering mechanism of the motor vehicle.

[0029] The pinion shaft 3 has a drive-side end via which it is connectable to the output shaft of a drive (not shown), for example an electric motor. In the region of this drive-side end, the pinion shaft 3 is supported in the housing 1 by means of a first bearing. This bearing is designed as a fixed bearing 5 which essentially does not allow a translation of the pinion shaft 3 relative to the housing 1 , but allows a deflection about the pivot axis 6 .

[0030] This deflection causes a deflection of the f...

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PUM

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Abstract

The invention relates to a solid bearing (5) for a steering gear comprising a swivel, which solid bearing comprises an inner bearing shell provided for accommodating a pinion shaft (3) of the steering gear, and an outer bearing shell, which is accommodated in a bearing bushing (12), and comprising a swivel ring (13) having an outer ring (14) and an inner ring (15), which rings are pivotally connected via one or more torsion webs(16), wherein the outer ring (14) is provided for bearing the solid bearing (5) in a housing (1) of the steering gear, characterized in that the inner ring (15) of the pivot ring (13) is mounted and axially fixed on the outer side on the bearing bushing (12).

Description

technical field [0001] The invention relates to a steering mechanism for a power steering system of a motor vehicle and in particular to a fixed bearing for such a steering mechanism. Background technique [0002] Power steering systems are installed in most motor vehicles, which generate an auxiliary torque during steering and thus reduce the steering torque that has to be exerted by the driver on the steering column. [0003] Known power steering systems are based on a steering mechanism that converts the drive power of a hydraulic or electric drive and transmits it to a steering column. Such a steering mechanism is generally formed in the form of a screw drive and in particular as a helical gear or worm gear, that is to say, the steering mechanism comprises a gear connected directly or indirectly to the steering rod as well as to the Pinion gear meshed by a drive unit through a pinion shaft. [0004] In such steering gears, the problem is gear mesh play, which develops ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04
CPCB62D5/0409F16C19/06F16C19/54F16C27/04F16C2226/50F16C2326/24F16C2361/61F16H25/24F16H57/039F16H2057/0213F16H2057/0222F16H2057/127B62D3/02B62D5/00F16C35/06
Inventor J·哈费尔马尔茨D·菲克泽尔
Owner ROBERT BOSCH AUTOMOTIVE STEERING
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