Traction device for large structure crash test

Abstract

The invention relates to large-scale structure collision test equipment, in particular to a traction device for large-scale structure collision test. The traction device comprises a traction body, a clamping mechanism connected with a transmission steel rope is arranged on the lower side of the traction body, a traction hook connected with the large-scale structure and a locking mechanism capableof locking the traction hook are arranged on the upper side of the traction body, the locking mechanism is used for locking the traction hook, and meanwhile, the clamping mechanism can clamp the transmission steel rope, the locking mechanism is used for unlocking the traction hook, and meanwhile the clamping mechanism can release the transmission steel rope. According to the locking mechanism, thetraction hook can be locked or unlocked, so that the safe and firm traction of the large-scale structure can be ensured, and the large-scale structure can be timely released; and moreover, when the locking mechanism locks or unlocks the traction hook, and the power transmission between the transmission steel rope and the traction device can be clamped or cut off, so that the transmission is safeand reliable, and the damage of the traction device can be reduced.

Description

technical field [0001] The invention relates to equipment for large-scale structure collision tests, in particular to a traction device for large-scale structure collision tests. Background technique [0002] Large structure crash test such as car crash test is the most basic and effective method to comprehensively evaluate the safety performance of cars. The test reproduces the shape of the traffic accident to analyze the motion state and damage of the vehicle and the dummy inside the vehicle before and after the collision, and use this as a basis to improve the vehicle structure design or improve the occupant protection device in the vehicle to improve the anti-collision ability and protect the occupants Safety. Since the automobile crash test is a non-repeatable destructive test for the test vehicle, the test is unique, and it is required that the test vehicle must accurately complete the collision according to the preset procedure. During the test, the traction device ...

AI Technical Summary

Problems solved by technology

The existing traction device generally clamps the traction cable through the clamping device, and then disconnects the connection with the traction cable through the release mechanism. Due to the instability of this device during the test, the traction device releases the trolley in advance or lags behind, resulting in a test speed. The requirements cannot be met; at the same time, the traction device is easily damaged due to the untimely release of the transmission steel rope

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