Transmission device for automatically correcting steering

Abstract

The automatically-correcting steering transmission equipment belongs to the automobile and wheel type tractor front wheel steering assembly, and is formed from left and right side angle transfer arms, left and right side angle transfer bars, left and right side steering arms, steering longitudinal pulling bar, transverse pulling bar and correctinb body assembly and front axle. They are formed into two independent parallel four-bar mechanisms, and its correcting body assembly includes correcting cam, roller assembly and front and rear lower guide bodies. Said equipment can effectively prevent steering wheels which are steered from slipping toward side direction, and features simple structure and extensive application.

Description

technical field [0001] The invention belongs to a front wheel steering device for automobiles and wheeled tractors. Background technique [0002] The steering mechanism of transport machinery such as automobiles and wheeled tractors mainly adopts a steering trapezoidal structure, which cannot guarantee that the steering wheel can satisfy Ackermann's formula within any steering angle, that is, no sideslip steering. According to theoretical analysis and experience in actual use, the steering line formed by the steering trapezoid is significantly different from the theoretical no-side-slip line. When changing the length of the steering knuckle arm and the deflection angle of the knuckle arm in the steering trapezoid, the actual steering line can be made at a certain Approaching the non-skidding steering line within a range of angles, but there is only one point of complete overlap, and the deviation of other angles increases, which makes the steering wheel in a rolling state ac...

AI Technical Summary

Problems solved by technology

[0002] The steering mechanism of transportation machinery such as automobiles and wheeled tractors mainly adopts a steering trapezoidal structure, which cannot guarantee that the steering wheel can satisfy the Ackerman formula within any steering angle, that is, no sideslip steering

According to theoretical analysis and experience in actual use, the steering line formed by the steering trapezoid is significantly different from the theoretical no-side-slip line. When changing the length of the steering knuckle arm and the deflection angle of the knuckle arm in the steering trapezoid, the actual steering line can be made at a certain Approaching the non-skidding steering line within a range of angles, but there is only one point of complete overlap, and the deviation of other angles increases, which makes the steering wheel in a rolling state accompanied by sideslip during most of the steering time , the greater the difference between the two lines, the more serious the sideslip

At the same time, a large internal force is generated in the entire steering system, which intensifies the wear of the steering wheel and the steering mechanism, and the side slip of the steering wheel during high-speed steering also reduces the stability of the vehicle.

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