Automobile crumple type steering column impact test device and test method

Abstract

The present invention provides an automobile crumple type steering column impact test device. The automobile crumple type steering column impact test device comprises a bracket; the bracket is provided with a lifting frame; the lifting frame is connected with a driving device; the driving device drives the lifting frame to move up and down along a vertical direction; the lower end of the lifting frame is connected with a striking module through a locking release mechanism; an energy absorption and sliding device is arranged below the striking module; the energy absorption and sliding device is connected with the bracket; a fixing device used for fixing a tested steering column is fixed below the energy absorption and sliding device; the energy absorption and sliding device includes an energy absorption mechanism and a sliding mechanism; and when striking occurs, the energy absorption mechanism can absorb part of energy generated in striking, and the sliding mechanism can move in a vertical direction and a horizontal direction. The test device has the advantages of compact structure, strong field adaptability and high reliability. The test method carried out by the test device is simple, effective, practical and is low in test cost.

Description

technical field [0001] The invention relates to the field of automobile safety testing, in particular to an automobile crush-type steering column impact test device and a testing method using the test device. Background technique [0002] With the improvement of people's living standards, cars have gradually become a common means of transportation in people's daily life. With the increase in the number of cars, people pay more and more attention to the safety of cars. In order to ensure the safety of drivers and passengers Safety, people have formulated strict regulations and requirements for the safety of cars. [0003] When a car has an accident, especially a frontal collision, the driver tends to lean forward due to the strong stopping effect, and the head and chest of the human body will collide with the steering wheel. In order to make the driver's head and chest impacted by the steering column The impact force suffered is reduced. Some cars design the steering column ...

AI Technical Summary

Problems solved by technology

Patent document EP1160560B1 discloses an impact simulation device for the steering column of an automobile, which simulates the reverse force of the steering column on the impacting object when it is impacted and the stress on the installation part of the steering column during the impact process, which is not very good. Force and displacement changes for simulated steering column collapse cases

At present, the method of simulating the collapsing of the steering column mostly adopts the traditional real vehicle impact or horizontal traction impact. Although this method is in line with the actual working conditions, it has high requirements for the test site, high test cost, and complicated operation. For the research and development of retractable steering columns and random inspections of factory batches, the pertinence is not strong, the site adaptability is poor, and the economy is poor. This will affect the quality of the steering column under test, and may affect the safety quality of the vehicle. to hidden danger

Images