A kind of automobile and its steering column

Abstract

The invention discloses an automobile steering pipe column, which comprises: a transmission shaft, a pipe column support, a collapse shear retaining ring, an upper release bearing, a lower release bearing, a buffer spring and a spring positioning device located at the bottom end of the buffer spring. The transmission shaft is provided with a groove at the position opposite to the crushing and shearing retaining ring, and the crushing and shearing retaining ring is provided with a positioning protrusion that matches with the groove and can break under a set axial force; On the transmission shaft, the upper release bearing and the lower release bearing are respectively located between the two ends of the transmission shaft and the pipe column support; the upper release bearing is connected to the bottom end of the collapse shear ring; the buffer spring is in a compressed state, and the positioning is set Between the inner ring of the lower release bearing and the spring retainer. The steering column of the automobile realizes the collapse of the transmission shaft relative to the support of the column, reduces the collision force between the human body and the steering wheel, and further reduces the damage of the automobile to the human body. The invention also discloses an automobile with the above-mentioned steering column.

Description

technical field [0001] The invention relates to the technical field of automobile parts manufacturing, in particular to an automobile and a steering pipe column thereof. Background technique [0002] With the rapid development of automobile manufacturing technology, people pay more and more attention to the safety performance of automobiles, especially the safety performance of automobiles in the event of a collision. [0003] When the automobile collides, the driver's body leans forward due to the inertia, so that the human body collides with the steering wheel, resulting in injury to the human body. [0004] At present, when a car collides, the protection of the car to the human body is mainly realized by the steering column and the bracket of the front wall of the vehicle body. The steering column is located on the bracket of the front wall of the vehicle body and is connected with the steering wheel. When the car collides, the front wall of the car body is subject to ex...

AI Technical Summary

Problems solved by technology

However, under normal circumstances, when the car collides, the driver leans forward, and his chest and above parts (such as the head) will hit the steering wheel. And the up and down adjustment function, it does not have the collapse function, so that the human chest or head will collide with the steering wheel, which will eventually lead to human injury

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