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Steering machine and car steering system

A technology of automobile steering system and steering gear, which is applied to steering column, mechanical steering gear, steering control mounted on the vehicle, etc., can solve the problems such as the inability to guarantee the backlash-free meshing of the rack and pinion, steering failure, etc., and achieves a simple structure, Improved reliability and high inverse efficiency

Inactive Publication Date: 2017-08-18
HENAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The steering gear includes a rack and pinion steering gear, which form a pair of transmission pairs through the cooperation of the rack and pinion, and drive the steering knuckle through the steering rack. However, in the actual operation process, due to the absence of external pressure, the gear cannot be guaranteed. The gap-free meshing between the racks is prone to problems such as steering failure

Method used

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  • Steering machine and car steering system
  • Steering machine and car steering system
  • Steering machine and car steering system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, the present embodiment provides a steering gear, including a steering gear 100, a steering rack 200, a housing 300, and a preload adjustment mechanism 400; the steering gear 100 is supported in the housing 300 through bearings; the steering The rack 200 is set in the housing 300 through the slide rail; the steering gear 100 is sleeved on the steering shaft 18 in the circumferential direction, and the steering gear 100 is meshed with the steering rack 200; the preload adjustment mechanism 400 is set in the housing body 300 and press the steering rack 200 tightly.

[0052]It should be pointed out that, in order to ensure that the rack and pinion mesh without clearance, the steering gear and the steering rack are pressed together by the pre-tightening force adjustment mechanism to prevent the steering gear and the steering rack from being out of joint and unable to turn during operation. Improve the reliability of the structure. The steering ma...

Embodiment 2

[0058] like figure 2 As shown, the automobile steering system includes a steering wheel 15, a steering gear, a steering column 16, a steering shaft 18 and a gear transmission mechanism connecting the steering column 16 and the steering shaft 18.

[0059] It should be pointed out that the automobile steering system has the advantages of simple and convenient operation and strong performance stability.

[0060] Specifically, the upper end of the steering column 16 is connected with the steering wheel 15, and the lower end of the steering shaft 18 is connected with the steering gear.

[0061] such as 2 to Figure 4 As shown, the gear transmission mechanism includes a bracket 14 , a switching assembly, an input shaft 1 , an output shaft 3 , an intermediate shaft 2 , an input shaft gear 4 , an output shaft gear 6 and an intermediate shaft gear 5 .

[0062] More specifically, as figure 2 and image 3 As shown, the bracket 14 is fixed on the vehicle body; the input shaft 1, the...

Embodiment 3

[0071] On the basis of the second embodiment, this embodiment also provides an automobile, including an automobile steering system.

[0072] It should be pointed out that, because the automobile includes the automobile steering system and the steering gear, it has all the advantages of the above two, so it will not be repeated here.

[0073] In addition, since the structure of the automobile has been disclosed in the prior art, refer to the publication number CN104010925A, the patent name is an invention patent for a vehicle body structure for a motor vehicle, especially a car, and a method for manufacturing the vehicle body structure, I won't go into details here.

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PUM

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Abstract

The invention provides a steering machine and a car steering system and belongs to the technical field of cars. The steering machine comprises a steering gear, a steering rack, a shell and a pretension force adjusting mechanism. The steering gear is supported in the shell through a bearing, the steering rack is arranged in the shell through a sliding rail, and the periphery of a steering shaft is sleeved with the steering gear; the steering gear is engaged with the steering rack; and the pretension force adjusting mechanism is arranged in the shell and tightly presses the steering rack. According to the steering machine, the steering gear and the steering rack are pressed together through the pretension force adjusting mechanism to ensure that the gear and the rack are engaged in a gapless mode, and mechanism combination is tighter and firmer.

Description

technical field [0001] The invention belongs to the technical field of vehicles, and relates to an automobile, in particular to a steering gear and an automobile steering system. Background technique [0002] Automobile refers to a vehicle that is driven by its own power plant, generally has four or more wheels, and does not rely on rails or wires to drive on land. Cars can be divided into cars, passenger cars, trucks and special-purpose cars according to their uses. [0003] The steering gear is an important assembly in the steering system, and its function mainly has three aspects. One is to increase the torque from the steering wheel to make it large enough to overcome the steering resistance moment between the steering wheel and the road surface; The end obtains the required displacement, or converts the rotation of the driving gear connected to the steering drive shaft into the linear motion of the rack and pinion to obtain the required displacement; the third is to o...

Claims

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Application Information

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IPC IPC(8): B62D3/12B62D1/20
CPCB62D3/12B62D1/20
Inventor 何莉陈东锋尹冠飞
Owner HENAN POLYTECHNIC
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