Collision-type trolley power device

Abstract

The invention discloses a collision-type trolley power device which comprises a trolley reset device and a trolley driving device. The trolley reset device is used for pulling a trolley back to two ends of a collision track and comprises a motor, a reduction gearbox, a coupling, an electromagnetic clutch, a reset roller, a brake, a reset belt, an anti-false-triggering device and a trolley displacement measuring device. The power of the motor is transmitted to the electromagnetic clutch through the reduction gearbox and the coupling, and the reset roller is connected to the electromagnetic clutch. The trolley driving device comprises elastic ropes, elastic rope tension adjusting devices, guiding devices and disengaging devices. The elastic ropes are connected to a trolley through long rods.In a trolley reset process, the elastic ropes are tensioned. In a test, the electromagnetic clutch is disconnected, the trolley accelerates under the tension of the elastic ropes, and the trolley andthe elastic ropes are separated by the disengaging devices when the trolley reaches a predetermined speed. The adjustment of a trolley collision speed can be realized by the numbers of the elastic rope tension adjusting devices and the elastic ropes.

Description

technical field [0001] The invention belongs to the field of automobile safety, in particular to a power device for a collision type trolley. Background technique [0002] With the rapid development of the automobile industry, automobile safety is more and more concerned by consumers. Improving automobile collision safety can not only improve the overall performance of automobiles, but also an important measure to effectively reduce the casualty rate of traffic accidents. In order to meet the strict requirements of national and even international standards, it is necessary to develop advanced automotive safety products and conduct a large number of experiments to verify the performance of the products. These experiments require the use of crash test devices with high simulation accuracy. [0003] At present, there are many types of automobile crash test devices, mainly including acceleration trolley and deceleration trolley. Among them, the deceleration trolley is a traditi...

AI Technical Summary

Problems solved by technology

However, it is a mechanical transmission. Due to the different manufacturing and assembly errors and the degree of wear of the hook body, there will be a certain error in the release time of the two trolleys, which will cause the two trolleys to be unable to release accurately at the preset time, which is easy. cause collision point deviation

[0005] Again, when the trolley is released, the traction rope moves with the trolley, and the traction reset roller rotates. After the trolley collides, the reset roller can easily rewind the traction rope due to the rotational inertia, thereby pulling the trolley, which affects the collision acceleration curve of the trolley. recurrence of

[0006] Moreover, the existing collision trolley system does not have a safety device, and the trolley may be towed due to system failure or misoperation. Since the trolley runs at a high speed after being towed, accidents are prone to occur

Images