Shield cutter rotary drive pressure adapting hydraulic control system of proportional valve controlled energy accumulator
A technology of hydraulic control system and shield cutter head, which is applied in mining equipment, earthwork drilling, tunnels, etc., and can solve problems such as reduced efficiency of the pressure oil system, increased temperature, and difficult maintenance, so as to improve efficiency and reliability , avoid overflow loss and keep the system clean
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[0016] Such as figure 1 As shown, the motor 4 in the main circuit of the present invention is connected to the constant power variable pump 6 via the coupling 5; the suction port of the constant power variable pump 6 is connected to the oil outlet of the oil suction filter 2, and the oil outlet is connected in parallel with a pressure gauge 7 is connected to the inlet of the high-pressure oil filter 8; the oil outlet of the high-pressure oil filter 8 is connected in parallel with the oil inlet of the cartridge valve 9 and then the oil inlet of the one-way valve 13; the proportional relief valve 12 and the control cover plate 10 The oil inlet of the built-in safety valve 11 is connected to the control oil port of the cartridge valve 9 through the control cover 10; the oil outlet of the cartridge valve 9, the safety valve 11 and the proportional relief valve 12 and the oil return filter 1 is connected to the oil inlet; the P1 port of the electro-hydraulic reversing valve 14 is co...
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