Dynamic impact test bed for automobile steering column

Abstract

The invention discloses a dynamic impact test bed for an automobile steering column. The dynamic impact test bed comprises a fixing base. The fixing base is provided with a U-shaped support and a U-shaped plate, wherein the U-shaped support is used for being hinged to a lower fixed point of the steering column, and the U-shaped plate is used for fixing an upper fixed point of the steering column. A fixing plate connected with the upper fixed point of the steering column is arranged in the U-shaped plate. The fixing plate is arranged in the U-shaped plate in a movable and adjustable mode relative to the fixing base. The U-shaped plate is arranged on the fixing base in a movable and adjustable mode relative to the U-shaped support. By the adoption of the dynamic impact test bed, the angle and the distance between the fixed points of the steering column can be adjusted; the dynamic impact test bed can be applied to dynamic impact tests of the automobile steering columns with different vehicle types and different impact angles and can truly reflect the crushing conditions of the steering column in the actual impact process.

Description

technical field [0001] The invention relates to the technical field of automobile steering system testing, in particular to an automobile steering column dynamic impact test stand. Background technique [0002] With the increasing popularization of automobile safety knowledge, the safety of automobile occupants has been paid more and more attention by all walks of life. When a collision accident occurs, especially a 40% offset collision, the occupant compartment is seriously intruded under the action of a huge impact. On the one hand, the steering column and steering wheel move backwards, and the driver continues to move forward due to inertia to impact the steering wheel, resulting in a violent secondary collision with the driver's chest and head, causing casualties to the driver. [0003] At present, cars generally use crushable steering column. When the driver collides with the steering wheel to a certain extent, the steering column will be crushed to absorb energy, there...

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Problems solved by technology

[0004] For example, a steering column static crush test device disclosed in Chinese Patent Publication No. CN203443771U adopts a static impact test, and a motor drives a briquetting block to slowly apply pressure from a static state. After the briquetting pressure reaches a certain pressure, the steering column begins to Crushing and deformation. This test device cannot truly reflect the movement and crushing of the steering column at the moment of car collision. The static test data cannot be used for occupant protection steering column and other parts benchmarking work, and it cannot meet the needs of different models and collision angles. steering column test

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