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Fixed bearings, steering gear and steering system

A technology of steering transmission and fixed bearings, which is applied to steering mechanisms, electric steering mechanisms, power steering mechanisms, etc., can solve problems such as noise, and achieve the effect of ensuring readjustment and lasting no gaps

Active Publication Date: 2021-05-04
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Undesirable noise situations can also occur with the steering gear known from the mentioned publication, especially after a relatively long service life of the steering gear

Method used

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  • Fixed bearings, steering gear and steering system
  • Fixed bearings, steering gear and steering system
  • Fixed bearings, steering gear and steering system

Examples

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Embodiment Construction

[0030] figure 1 The main components of the steering gear of the steering system according to the invention are shown. The steering gear comprises a housing 1 in which a gear 2 and a helical pinion 3 meshing with the gear 2 are rotatably arranged. The helical pinion 3 and the helical pinion shaft 4 surrounding the helical pinion 3 are formed in one piece in the form of a worm.

[0031] The gear 2 is firmly fixed on the output shaft 5 of the steering transmission mechanism. In the exemplary embodiment shown, this output shaft 5 has a toothing for a rotationally fixed connection to the pinion 2 , which can be configured, for example, with at least one section as a toothed rack (Zahnstange). Steering link (Lenkstange) meshes, whereby the toothed rack performs a translational movement, which can be converted (übersetzt) ​​into energy of the motor vehicle in a known manner via a wheel steering link (not shown) The swivel movement (Schwenkbewegung) of the steered wheels (not shown...

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PUM

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Abstract

A fixed bearing (6) for a steering transmission mechanism comprises a rotary bearing (9) having an inner bearing ring (11) and an outer bearing ring (12), the inner bearing ring (11) being arranged for To receive the pinion shaft (4) of the steering gear, the outer bearing ring (12) is received in a bushing (15). Furthermore, the fixed bearing comprises a swivel ring (16) with an outer ring (20) and an inner ring (17), which are connected in a deflectable manner via one or more torsion webs, wherein the The inner ring (17) is connected to the bushing ((15) and the outer ring is arranged to support the fixed bearing in the housing (1) of the steering transmission. Such a fixed bearing -wherein the inner ring and the outer bearing ring of the rotary bearing are clamped between the axial stop (19) of the bushing and the clamping ring (18) -that is to say with a defined preload force loading. By clamping the inner ring of the slewing ring and the outer bearing ring (20) of the rotary bearing between the axial stop of the bushing and the clamping ring, Plays between these elements received inside the bushing can be eliminated, thereby preventing undesirable occurrences during operation of a steering transmission comprising such a fixed bearing due to the movability of these elements inside the bushing. noise.

Description

technical field [0001] The invention relates to a fixed bearing for a steering transmission mechanism. Furthermore, the invention relates to a steering gear having such a fixed bearing and to a steering system for a motor vehicle having such a steering gear. In particular, the steering system can be a power steering system. Background technique [0002] Power steering systems are installed in most motor vehicles, which generate an auxiliary torque during steering and thereby reduce the steering torque to be applied by the driver to the steering column of the motor vehicle. [0003] Known power steering systems are based on a steering gear that converts the drive power of a hydraulic or electric steering motor and transmits it, for example, to a steering column. Such steering gears can often be designed in the form of hob gears and in particular as helical gears or worm gears. They consist of a gear which is directly or indirectly connected to the steering column and which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C35/077B62D5/04F16C27/06F16H57/039F16C35/067F16C25/06
CPCB62D5/0409F16C19/06F16C25/06F16C27/066F16C35/067F16C2229/00F16C2240/14F16C2326/24F16C2380/27F16H57/039
Inventor J-U.哈费尔马尔茨D.菲克泽尔
Owner ROBERT BOSCH GMBH