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Electric power steering apparatus equipped with a mechanism for adjusting the tension of a transmission belt

A technology of tension adjustment mechanism and electric steering, which is applied in the direction of electric steering mechanism, transmission device, power steering mechanism, etc., and can solve the problems of noise, rack bar 109 vibration and impact not directly transmitted, etc.

Inactive Publication Date: 2008-02-13
HL MANDO CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, the belt type electric transmission device 140 prevents the vibration and impact of the rack bar 109 from being directly transmitted to the motor 130.
However, when the tension of the belt changes due to wear of the belt or pulleys, vibrations are generated in the belt and can be transmitted to the vehicle body, causing noise

Method used

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  • Electric power steering apparatus equipped with a mechanism for adjusting the tension of a transmission belt
  • Electric power steering apparatus equipped with a mechanism for adjusting the tension of a transmission belt
  • Electric power steering apparatus equipped with a mechanism for adjusting the tension of a transmission belt

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Embodiment Construction

[0025] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description and drawings, the same reference numerals denote the same or similar elements. Also, in the following description of the present invention, a detailed description of known functions and structures contained herein will be omitted when it may make the subject matter of the present invention unclear.

[0026] Fig. 3a is a partial perspective view of the electric power steering device according to the first embodiment of the present invention, and Fig. 3b is a sectional view of the electric power steering device along the line A-A in Fig. 3a.

[0027] As shown in FIGS. 3a and 3b, an electric power steering apparatus according to a first embodiment of the present invention includes: an electric motor 130 for providing steering assist power; a driving pulley 301 extending from one end of the electric motor 130; and a driven pulley 305...

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Abstract

An electric power steering apparatus includes: a motor (130) for providing assistant steering power; a following pulley (305) connected with the motor through a belt (303) to receive a driving force; a gear housing (307) surrounding the following pulley; a motor housing (309) rotatably assembled with the gear housing; and a tension adjusting mechanism (311) for adjusting a rotation angle of the motor housing (309) so as to adjust a tension of the belt. Therefore, the relative rotation angle of the motor housing (309) respective to the gear housing (307) can be adjusted so that the tension of the belt can be easily controlled and the generation of vibration and noise of the belt can be prevented.

Description

technical field [0001] The present invention relates to an electric steering device, in particular to an electric steering device equipped with a tension adjustment mechanism, which can adjust the rotation angle of a motor cover that can rotate relative to a gear cover to adjust the tension of a belt. Background technique [0002] Generally, a hydraulic power steering device has been used as a power steering device of a vehicle. Electric power steering using an electric motor has been widely used since the 1990s. [0003] In a conventional hydraulic steering device, a hydraulic pump, which is a power source for providing auxiliary steering power, is operated by an engine, and always consumes energy regardless of whether the steering wheel is rotated or not. On the other hand, in the electric steering apparatus, if torque is generated by rotation of the steering wheel, the electric motor supplies auxiliary steering power proportional to the generated torque. Therefore, when...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04
CPCF16H2025/2096F16H7/14B62D5/0424
Inventor J·南宫
Owner HL MANDO CORP
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