HYDROSTATIC INSTALLATION FOR ACTUATING THE MOBILE BEAM OF THE GATE SHEARS

摘要

The invention relates to a hydraulic installation for actuating the mobile beam of gate shears using serial hydraulic cylinders. According to the invention, the installation comprises a compensating device (6) whose dispensing piston (9) introduces an oil volume into the serial circuit (d) after starting the cutting operation, under the action of the working fluid in the main circuit, said oil volume being adjusted in relation to the cutting angle and the working pressure, thereby preventing the angle decrease as a result of the abrupt compression of the oil and the angle increase as a result of the slow decompression of the oil, as the cutting is being performed.