Electric power steering system and vehicle

An electric power steering and steering gear technology, applied in the automotive field, can solve the problems of meshing clearance, inconsistent center distance, affecting driver comfort, etc., and achieve the effect of avoiding noise

Active Publication Date: 2016-05-11
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The problem to be solved by the present invention is that the meshing center distance of the worm gear and worm is not consistent with the center distance of the two cavities of t

Method used

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  • Electric power steering system and vehicle
  • Electric power steering system and vehicle
  • Electric power steering system and vehicle

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[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] reference figure 1 And combine figure 2 As shown, an embodiment of the present invention provides an electric power steering system, including:

[0042] The steering gear housing 60 is provided with a worm gear mounting cavity 61 and a worm mounting cavity 62;

[0043] The worm gear 50 is installed in the worm gear installation cavity 61;

[0044] The worm 40 is installed in the worm mounting cavity 62, and the worm wheel 50 and the worm 40 mesh with each other;

[0045] The worm 40 is provided with a first center distance adjustment mechanism at one end in the axial direction, and the second center distance adjustment mechanism is provided at the other end in the axial direction. The second center distance adjustment...

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Abstract

Provided is an electric power steering system and a vehicle. The electric power steering system comprises a steering gear housing, a worm gear, and a worm. The steering gear housing is internally provided with a worm gear installation cavity and a worm installation cavity. The worm gear is installed in the worm gear installation cavity. The worm is installed in the worm installation cavity. The worm gear and the worm are meshed with each other. One axial end of the worm is provided with a first center distance adjusting mechanism, and the other axial end is provided with a second center distance adjusting mechanism. The first center distance adjusting mechanism and the second center distance adjusting mechanism can make the worm swing deviating the axis of the worm, so as to realize adjustment of the mesh center distance of the worm gear and the worm. Using the electric power steering system can realize mesh center distance of the worm gear and the worm, so that the mesh center distance of the worm gear and the worm is consistent with the center distance of the worm gear installation cavity and the worm installation cavity, and mesh interspace is not generated, so as to prevent to generate noise in a steering process.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an electric power steering system and an automobile. Background technique [0002] Electric Power Steering (EPS for short) is a power steering system that directly relies on the motor to provide auxiliary torque. EPS is mainly composed of torque sensor, vehicle speed sensor, electric motor, electric power steering, reduction mechanism and electronic control unit (ECU), etc. composition. Among them, the electric power steering housing is provided with a worm gear installation cavity and a worm screw installation cavity. The worm screw installation cavity is installed with a worm, and the worm gear installation cavity is installed with a worm gear. [0003] Due to the influence of factors such as machining error, assembly error and tooling environment, the center distance between the worm gear installation cavity and the worm screw installation cavity will change within a certain tolera...

Claims

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Application Information

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IPC IPC(8): B62D5/04
Inventor 李杰姜旭春周中坚殷古鹏郁钧辉王凤丽谷彦东贾培峰邵磊
Owner SAIC MOTOR
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