TRAVELING HYDRAULIC HANDLING MACHINE OF ENERGY-SAVING TYPE

摘要

A traveling hydraulic handling machine of energy-saving type includes a driving system and a control system for both hoisting and traveling. The hydraulic handling machine converts partly potential energy of a heavy object before being lowered and kinetic energy of a vehicle before being braked to pressure energy of a fluid and stores the pressure energy into a hydraulic energy accumulator (15) by using added hydraulic elements with the aid of the original hydraulic system of the handling machine during lifting and lowering of the heavy object as well as braking and starting of the vehicle, thus enabling potential energy of the heavy object and kinetic energy of the vehicle obtained by consuming power to be partly regenerated during next lifting of the heavy object and starting of the vehicle, to reduce the load and power of a power machine for driving an oil pump and starting the vehicle. The device has the advantages of high efficiency of energy recovering and regenerating, remarkable benefits of energy saving and emission reduction, simple and convenient operation, low cost and long service life. The hydraulic elements can be configured during manufacturing of a new machine or be added during rebuilding of an old one.