Hydraulic lifting unit for agricultural machine - consists of two or more lifting cylinders connected between base unit and machine assembly

摘要

The lifting cylinders (8, 13) are controlled by hydraulic control circuits separated from each other. One of the lifting cylinders at least is connected with a hydraulic pressure accumulator (11). The pressure in the lifting cylinders (8) specified by an evaluating electronic control unit (20) can be varied by an adjusting element (22). Three lifting cylinders can be installed so that two lifting cylinders are controlled by a first hydraulic control circuit, and are connected together by a hydraulic line, and the third cylinder is controlled by a second hydraulic control circuit. USE/ADVANTAGE - For cutting table e.g. of harvester thresher. Cost and space saving lifting spring unit which satisfies all functional requirements.