Combined-type multi-way reversing valve for coal-mine full-hydraulic underground drilling machine
A multi-way reversing valve, tunnel drilling rig technology, applied in the field of hydraulic valves, can solve the problems of difficult operation, serious power loss, difficult centralized control and the like
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[0026] like figure 1 As shown, the combined multi-way reversing valve for coal mine full hydraulic tunnel drilling rig consists of oil inlet valve body 1, motor direction control valve body 2, motor speed control valve body 3, auxiliary control valve body 4, oil cylinder direction and speed control valve Body 5, hydraulic chuck control valve body 6, gripper control valve body 7, and hydraulic chuck oil return valve body 8 are connected in sequence; among them, the oil outlet P of oil inlet valve body 1 1 ' and the oil inlet P of the motor direction control valve body 2 2 Connected, the first oil outlet P of the motor direction control valve body 2 21 ' and the first oil inlet P of the motor speed control valve body 3 31 Connected, the second oil outlet P of the motor direction control valve body 2 22 ' and the direction of the oil cylinder, the first oil inlet P of the speed control valve body 5 51 , the second oil inlet P 52 Connected sequentially, the third oil outlet...
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