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Dustproof device of electric power steering system

A technology of electric power steering and dustproof device, applied in electric steering mechanism, power steering mechanism, steering mechanism, etc., can solve problems such as air pressure imbalance, slow speed, resistance, etc., and achieve the effect of improving comfort and reliability.

Pending Publication Date: 2019-02-05
WUHU DEFU STEERING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the vehicle is running, when the steering wheel rotates in one direction, the movement of the rack will drive the change of the position of the outer tie rod assembly, which will cause the compression of the dust cover on one side and the stretching of the dust cover on the other side. The speed of the air directly passing through the two sides is very slow, which will easily cause the air pressure imbalance at both ends, thereby generating corresponding resistance and affecting the power-assisted effect of the electric power steering system

Method used

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  • Dustproof device of electric power steering system
  • Dustproof device of electric power steering system
  • Dustproof device of electric power steering system

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Embodiment Construction

[0023] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention will be described in further detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

[0024] It should be noted that, in the following embodiments, the “first”, “second” and “third” do not represent absolute distinctions in structure and / or function, nor do they represent a sequential execution order. , but only for convenience of description.

[0025] like Figure 1 to Figure 9 As shown, it is an electric power steering system, the electric power steering system includes a motor, a steering gear housing 8, a power assist gear 12, a deceleration mechanism, a rack positioning device, a movably arranged in the steering gear housing 8 and is connected with The gear r...

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Abstract

The invention discloses a dustproof device of an electric power steering system. The dustproof device of the electric power steering system comprises dustproof covers arranged at the end of a steeringmachine shell, wherein exhaust grooves which enable inner cavities of the dustproof covers and an inner cavity of the steering machine shell to be in a communication state are formed in the steeringmachine shell. According to the dustproof device of the electric power steering system, the exhaust grooves are formed in the steering machine shell, so that the inner cavities of the dustproof coversand the inner cavity of the steering machine shell are in a communicated state, air in the two dustproof covers can flow back and forth, so that an air path is unblocked, the air pressure balance ina closed space is rapidly realized during steering a wheel, the problem that the boosting effect is influenced due to resistance caused by uneven internal air pressure during steering the wheel is solved, the reliability of the electric power steering system is improved, and the comfort level of drivers is improved.

Description

technical field [0001] The invention belongs to the technical field of vehicle steering systems, and in particular, the invention relates to a dustproof device for an electric power steering system. Background technique [0002] The Electric Power Steering System (EPS) is a steering system that is directly powered by the motor. Purpose of steering wheel assist. [0003] The electric power steering system has precise steering return; the magnitude of the power assist can be adjusted according to the change of the vehicle speed, so that it can take into account the ease of operation when the vehicle is running at low speed and the directional stability at high speed; reduce engine power consumption and save fuel; non-existent Due to the many advantages of the application of hydraulic oil, such as pollution to the environment, it meets the needs of social development. Therefore, the electric power steering system is the main development direction of the automobile steering sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04
CPCB62D5/0403
Inventor 刘培培袁鲁平王静陈顺
Owner WUHU DEFU STEERING SYST
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