Movement control method of boom, movement control system of boom and construction machinery

Abstract

The invention discloses a jib motion control method, a jib motion control system, and engineering machinery. The motion control method comprises steps: 1) activating a jib section group correspondingto a jib section group activation instruction as a master control jib section group, and designating a jib section group not corresponding to the jib section group activation instruction as a following jib section group; 2) determining whether a group section adjusting instruction is received, if not, entering step 3, and if yes, entering step 4; 3) driving an end point of the master control jib section group to correspondingly move relative to a root node thereof and controlling an end point of the following jib section group to maintain stationary relative to a root node thereof according toa jib section group motion instruction; and 4) driving an end point of the master control jib section group to correspondingly move relative to a root node thereof and driving a root node of a firstfollowing jib section group, hinged to the end point of the master control jib section group, in the following jib section group to correspondingly move relative to an end point thereof and controlling a master end point of a jib to maintain stationary relative to a master root node thereof according to a jib section group motion instruction.

Description

technical field [0001] The present invention relates to the field of construction machinery, in particular to a method for controlling the movement of a boom, a system for controlling the movement of a boom, and a construction machinery. Background technique [0002] There are many types of construction machinery, and the concrete pump truck is one of the construction machinery. The concrete pump truck can transport the concrete in the mixer truck to the farthest end (end) of the boom through the long boom delivery pipe, so as to continuously transport the concrete to the construction site. For a pump truck, there are at least 3 robotic arms and as many as 7 robotic arms. The operator needs multiple handles to control the unfolding and retracting operation of each section of the mechanical arm. In addition, a rotary handle is needed to control the overall rotation of the arm frame to change the construction direction and construction direction. Through so many handles, each...

AI Technical Summary

Problems solved by technology

The operator needs multiple handles to control the unfolding and retracting operation of each section of the mechanical arm. In addition, a rotary handle is needed to control the overall rotation of the arm frame to change the construction direction and construction direction. Through so many handles, each oil cylinder is controlled separately. , so that the boom moves to the designated position at a suitable speed and a suitable trajectory. The operation is very difficult. It is difficult for the operator to achieve smooth movement and precise positioning of the end of the boom. The operator is labor-intensive and prone to fatigue. The operation level of the operator is high. At the same time, due to the inconvenient operation, the movement of the boom is not flexible. Often, two additional people are required to hold the end hose to let the concrete spray to the designated position, which increases additional labor costs.

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