Vehicle steering gear power-assisted steering mechanism

A power steering and steering gear technology, applied in the direction of fluid steering mechanism, mechanical steering gear, etc., can solve the problems of low driving comfort and difficult steering of the steering wheel, and achieve the effect of saving steering effort, reducing steering force, and strong practicability.

Inactive Publication Date: 2020-02-14
国唐汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a power steering mechanism of a vehicle steering gear to solve the problems of laborious steering of the steering wheel and low driving comfort

Method used

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  • Vehicle steering gear power-assisted steering mechanism

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Embodiment Construction

[0018] like figure 1 As shown, a power steering mechanism of a vehicle steering gear includes a steering gear, a steering tie rod 1 , a left telescopic sheath 2 , a right telescopic sheath 3 and a power assist air pipe 4 .

[0019] The steering gear includes a protective cover 5, a rack 6, a gear 7 and a ball head 8. The gear 7 is connected to the steering wheel through the steering shaft, and the gear 7 can be driven to rotate when the steering wheel rotates. The rack 6 includes a toothed portion 9 and a limiting portion 10 arranged in sequence from left to right. The toothed portion 9 is provided with a number of tooth grooves, the toothed portion 9 and the gear 7 mesh with each other, and the limiting portion 10 is a smooth rod-shaped structure. The height of the limiting portion 10 is greater than or equal to the height of the top of the tooth groove, so that the limiting gear 7 continues to rotate along the rack 6 .

[0020] This mechanism also includes a rack cover 11, ...

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PUM

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Abstract

The invention provides a vehicle steering gear power-assisted steering mechanism. The power-assisted steering mechanism comprises a steering gear, steering tie rods, a left expansion sheath, a right expansion sheath and a power-assisted air pipe. The steering gear comprises a protective cover, a rack, a gear and spherical heads. The gear is connected with a steering disk. The rack comprises an engaging tooth part and a limiting part which are arranged from left to right. The engaging tooth part is engaged with the gear. The gear and the engaging tooth part are covered with the protective cover. The left and right ends of the rack are provided with the spherical heads. Steering balls are fixed to the ends of the steering tie rods. The steering balls are mounted in the spherical heads. The left expansion sheath and the right expansion sheath are mounted at the left and right ends of the rack correspondingly. Fixing rings are mounted on the steering tie rods. the two ends of the left expansion sheath are in sealing connection with the corresponding fixing ring and the protective cover correspondingly. The two ends of the right expansion sheath are in sealing connection with the limiting part of the rack and the corresponding fixing ring correspondingly. The two ends of the power-assisted air pipe communicate with the left expansion sheath and the right expansion sheath correspondingly. Through the vehicle steering gear power-assisted steering mechanism, the problems that the steering disk is hard to steer and the using comfort degree is low are solved.

Description

technical field [0001] The invention belongs to the technical field of vehicle steering devices, and in particular relates to a power steering mechanism of a vehicle steering gear. Background technique [0002] The vehicle steering gear can amplify the force transmitted from the steering wheel to the steering transmission mechanism, and change the direction of force transmission, thereby turning the wheels. The rack and pinion steering gear is the most widely used steering gear. Its gear is connected to the steering wheel, and the gear and the rack are meshed with each other. When the steering wheel drives the gear to rotate, the gear drives the rack to make a linear motion, driving the steering tie rod to Steering wheel steering, this type of steering gear has a simple structure and is sensitive to steering, but it does not have a power assist mechanism. In a passenger car with high steering force requirements on the steering wheel, the steering wheel is very laborious to o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/16B62D5/22B62D3/12
CPCB62D3/12B62D5/16B62D5/22
Inventor 黄福良张新中康雨辰陈丽魏悦宋金行王桐
Owner 国唐汽车有限公司
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