Container reach stacker boom control system and method and container reach stacker

Abstract

The invention relates to a container reach stacker boom control system, comprising: a first detecting part (1), which is used for detecting an elongation and an elevation angle of a boom (3), a second detecting part (2), which is used for detecting the pressure of a left pitch oil cylinder, a right pitch oil cylinder (5, 6) of the boom (3); a controller (4), which is used for calculating the stabilizing moment and the overturning moment at the current location according to the elongation and the elevation angle of a boom (3) and the pressure of the left pitch oil cylinder, the right pitch oilcylinder (5, 6) detected by the first detecting part (1) and the second detecting part (2), thereby determining the moment percentage and determining the safety buffer coefficient according to the moment percentage, and the corresponding control signal is output according to the safety buffer coefficient; a boom speed control element, which is used for controlling the speed of the boom (3) according to the control signal action. Additionally, the invention also relates to a control method used for the container reach stacker boom control system and a container reach stacker which is provided with the control system.

Description

technical field [0001] The invention relates to the field of heavy machinery, in particular to a control system and method for a container front crane jib and a container front crane with the control system. Background technique [0002] Container reach stacker is a mobile port equipment widely used in ports, docks, railway and highway transfer stations, storage yards, etc. It has dual functions of forklift truck and truck crane, and is mainly used for container loading and unloading, site transfer and stacking Operation. The container reach stacker has the advantages of flexible maneuverability, convenient operation, large operation range and high yard utilization rate. [0003] The operation actions of the container reach stacker generally include: lifting, lowering, jib extension, and jib retraction. In the process of lifting and transporting containers, due to the structural characteristics of the container reach stacker itself, if the jib moves down too fast when the ...

AI Technical Summary

Problems solved by technology

In order to prevent the occurrence of tipping accidents, many container reach stackers are designed with a mechanical anti-tipping mechanism, which can provide a static balance, that is, prevent the overturning moment of the container reach stacker from being too large (generally However, for the overturning accident of the container front stacker caused by the fast downward speed of the jib (the container front stacker is in a non-static equilibrium state at this time), this The protective effect of the existing anti-overturning mechanism is very limited, and it cannot effectively prevent the container front stacker from overturning during the dynamic movement of the boom

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