Traction protection device used for vehicle collision test

Abstract

The invention discloses a protection device for a vehicle collision test and providing a traction protection device used for the vehicle collision test. The traction protection device has a simple structure and can be automatically separated from a traction steel rope when a test vehicle reaches a predetermined speed to ensure that the real collision process is completely simulated. With the adoption of the traction protection device, the technical problem of poor collision test data accuracy caused by the fact that the test vehicle can not simulate the real collision process in the prior art. The traction protection device comprises a bottom plate which synchronously moves with the traction steel rope, an opening suspending plate an opening of which faces the movement direction of the traction steel rope is arranged on the bottom plate, the opening is in a rotatable connection with a turning limiting block which is connected with a trigger mechanism, the trigger mechanism comprises a sliding block butting against the turning limiting block, the sliding block is connected in a sliding chute of the bottom plate in a sliding mode, the sliding chute is arranged outside the turning limiting block and extends along the movement direction of the traction steel rope, a baffle plate is in the rotatable connection on one side of the sliding chute, and the baffle plate corresponds to a trigger baffle block of a traction track.

Description

technical field [0001] The invention relates to a protection device for a vehicle collision test, in particular to a traction protection device for a vehicle collision test that ensures that the test vehicle hits a barrier according to inertia in a free state when the test vehicle reaches a specified speed device. Background technique [0002] In the automobile safety crash test, the test vehicle generally reaches the speed required by the test under the pull of the steel wire rope driven by the motor. When the test vehicle reaches the specified speed, it needs to be disengaged from the steel wire rope in time and hit the barrier to complete the test. A traction protection device needs to be installed between the test vehicle and the steel wire rope, so that the test vehicle can inertially hit the barrier in a free state at a specified speed, so as to ensure that the test vehicle completely simulates the real collision process. Therefore, during the test, it is required tha...

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly provides a simple structure. After the test vehicle reaches the specified speed under the traction of the traction cable, the test vehicle can automatically break away from the traction cable to ensure that the test vehicle completely simulates the real collision process. The traction protection device used for vehicle collision test that hits the barrier solves the technical problem that the test vehicle in the prior art cannot completely simulate the real collision process, resulting in poor accuracy of the collision test data

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