The invention discloses an overhead working truck leveling system based on boom limit and a control method thereof. Through the adoption of the boom limiting control method, after sampling is implemented by using sensors, an amplitude-variation system and a levelling system are introduced to limit and control booms, so that the levelling function of an operation platform can still be achieved when a workbench outputs a smaller levelling angle (equal to or smaller than 180 degrees) and a larger amplitude-variation angle (equal to or smaller than 260 degrees) is formed through boom lifting, the levelling function of the workbench can be achieved while the workbench is lifted in a large space, the lifting amplitude angles of arms are matched with smaller levelling output angles through the limiting and control on the booms, and the difficulty of levelling output is effectively reduced; besides, the booms are consistent with an automatic workbench levelling system in starting and stopping, so that the levelling hysteresis is low; moreover, the workbench serves as a single controlled object, so that the system is simple and easy to control.
Overhead working truck leveling system based on boom limit and control method thereof
2015-08-26
Patent
Electronic Resource
English
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
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