Steering shaft, automobile steering mechanism and automobile

Abstract

The invention discloses a steering shaft, an automobile steering mechanism and an automobile. The steering shaft comprises a first shaft and a second shaft which are connected through a universal joint, wherein one of the first shaft and the second shaft is used for being connected with an automobile steering column and the other of the first shaft and the second shaft is used for being connected with an automobile steering gear. The steering shaft provided by the invention comprises the first shaft and the second shaft which are connected through the universal joint, so that an included angle between the first shaft and the second shaft can be adjusted, an included angle between the first shaft and the steering column and an included angle the second shaft and the steering gear can be adjusted, an included angle condition which does not generate moment fluctuation is easy to achieve because of the adjustable included angles, and the moment fluctuation generation probabilities of the automobile steering mechanism during the transmission process of the rotating force are reduced by adjusting the above included angles compared with an ungovernable rotary shaft in the prior art.

Description

technical field [0001] The invention relates to automobile technology, in particular to a steering shaft, an automobile steering mechanism and an automobile. Background technique [0002] The steering system of an automobile includes a steering wheel, a steering column, a steering shaft, and a steering gear connected in sequence. The rotational force applied to the steering wheel by the driver is transmitted to the steering gear through the steering column and the steering shaft, and the steering gear drives the wheels to finally realize steering. [0003] In order to avoid torque fluctuations during the transmission of the rotating force, two conditions need to be met: first, the axes of the steering column, the steering shaft and the steering gear are in the same plane; second, the axis of the steering column and the steering shaft The included angle of the axis is equal to the included angle between the axis of the steering shaft and the axis of the steering gear. Automo...

AI Technical Summary

Problems solved by technology

[0004] The steering shaft in the prior art is a rigid straight shaft, which itself has no ability to adjust the angle. In the layout design, due to the limited space of the cab, it is necessary to comprehensively consider the layout design of each component, so it is difficult to simultaneously Satisfying the above two conditions has led to the fact that most of the steering systems in the prior art have certain torque fluctuations during use, which ultimately affects the steering feel of the driver.

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