Arm frame position control device and concrete pump truck

Abstract

The invention provides an arm frame position control device, comprising a distance measuring unit, a controller and a multi-path solenoid-operated valve group, wherein the distance measuring unit is used for acquiring the distance between an arm frame and a barrier in the vicinity of the arm frame and transmitting the acquired distance signal to the controller; the controller is connected to the multi-path solenoid-operated valve group and used for judging whether the distance between the arm frame and the barrier is less than or equal to a preset safety distance according to the distance signal, and transmitting a current adjustment signal to the multi-path solenoid-operated valve group when the distance between the arm frame and the barrier is less than or equal to the preset safety distance; and the multi-path solenoid-operated valve group is used for controlling the hydraulic oil amount of the oil cylinder of the corresponding arm frame according to the current adjustment signal so as to adjust the position of the arm frame and enable the distance between the arm frame and the barrier to be more than the preset safety distance. Through the technical scheme provided by the invention, the tail end position of the arm frame can be automatically adjusted into a safety range for construction, so that the safety and reliability for the actions of the arm frame are ensured.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a concrete pump truck. Background technique [0002] At present, boom pump trucks are becoming more and more mainstream in the market due to their large construction scope and fast operation speed. As the booms of pump trucks continue to grow, the operation becomes more complicated and the requirements for safety and reliability are higher. Due to the complex and changeable construction site, there may be obstacles or construction workers at the end of the boom, causing unnecessary injuries to construction personnel and damage to the boom. This requires that the end of the boom can be automatically and accurately controlled in real time to avoid obstacles or construction workers. personnel. [0003] In related technologies, as the length of the boom of the pump truck increases, the construction radius of the corresponding boom is also increasing. However, due to the limitati...

AI Technical Summary

Problems solved by technology

Due to the complex and changeable construction site, there may be obstacles or construction workers at the end of the boom, causing unnecessary injuries to construction personnel and damage to the boom. This requires that the end of the boom can be automatically and accurately controlled in real time to avoid obstacles or construction workers. personnel

[0003] In related technologies, as the length of the boom of the pump truck increases, the construction radius of the corresponding boom is also increasing. However, due to the limitation of the structural space and economic performance of the whole vehicle, the field of vision of the construction personnel is limited, and there are many complex construction sites. During the joint construction of the joint boom, due to the uncertain factors of the construction surface, the end of the boom may touch the construction surface or the construction personnel, resulting in unnecessary damage to the boom and personal injury

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