Control system and method for inserting and disengaging pins of bridge body of bridge erecting vehicle and bridge erecting vehicle

Abstract

The invention provides a control system and method for inserting and disengaging pins of the bridge body of a bridge erecting vehicle and the bridge erecting vehicle. The control system comprises a first detection device which is used for generating a first signal when a turnover mechanism reaches a specified position and transmitting the first signal to a main control device, and the specified position is the position of the turnover mechanism when the gravity center of the bridge body of the bridge erecting vehicle is located on the outer side of a portal support leg grounding fulcrum; and the control system further comprises a main control device which is used for judging actions allowed to be executed by the turnover mechanism, a movable pin and a steel wire rope according to whether a first signal is received or not and the state of the movable pin. The problems that in the bridge body withdrawing process, an operator needs to reach the bridge bottom to confirm whether the turnover mechanism moves to the designated position or not, and great personnel safety risks exist are solved, and the bridge body erecting and withdrawing efficiency and safety are effectively improved.

Description

technical field [0001] The invention relates to the field of emergency rescue equipment, and in particular to a control system for plugging and unpinning a bridge body of a bridge-erecting vehicle, a method for controlling pinning-out of a bridge body for a bridge-erecting vehicle, and a bridge-erecting vehicle. Background technique [0002] The emergency bridging vehicle is mainly used to quickly erect bridges, allowing vehicles and personnel to quickly pass through rivers, ravines, etc. After natural disasters such as rainstorms, floods, and mudslides, roads and bridges are often destroyed, causing delays in emergency rescue, and emergency bridge erection vehicles are generally used to quickly build roads and bridges during rescue to facilitate the passage of rescue vehicles. The bridge body of the bridge erecting vehicle and the turning mechanism are connected by movable pins to facilitate the combination and disengagement of the turning mechanism and the bridge body. Wh...

AI Technical Summary

Problems solved by technology

[0003] When the existing emergency bridging vehicle withdraws the bridge body, it needs to move the overturning mechanism to the position where the movable pin can be inserted into the straight chute. Due to the infinite position reference, the position error is large, resulting in a large width of the straight chute. Due to the diameter of the movable pin, there is a large gap on the upper and lower sides of the straight chute after the movable pin is combined with the straight chute, so that there is a large impact during the erection and withdrawal of the bridge body by the turning mechanism, which increases the bridge erection. And the safety risk when withdrawing; on the other hand, when withdrawing the bridge body, it is necessary to move the overturning mechanism to the position where the movable pin can be inserted into the straight chute. Observing from a close distance whether the turning mechanism has moved to the designated position greatly increases the operating difficulty and safety risks of the operator, which may easily lead to casualties; the operator needs to repeatedly confirm whether the turning mechanism has moved to the designated position, which increases the bridge body. Withdrawal time

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