Before the operation of the tunnel drilling rig, the operator must carefully study the operating instructions of the tunnel drilling rig and master the performance and operation methods of the drilling rig. Before starting the rig, check whether all parts of the rig are complete, whether the fasteners are loose, whether the operating mechanisms are flexible, whether the oil quantity in the oil mist device is sufficient, and the operating switch should be in the off state.
Before drilling, install hexagonal drill pipe and place tunnel drilling rig according to eye position and eye position angle. Rotate the motor control switch at a small angle to make the drill pipe rotate slowly. At the same time, Shandong Zhongmei unscrewed the control switch of the leg by a small angle, so that the drill bit gradually touched the roof and turned on the control water switch. After drilling about 100mm, turn on all motor control switches and drill at full speed.
Before formal drilling, the operator should do no-load test on the anchor drilling rig to ensure that all kinds of operating mechanisms are flexible, the legs are normal in expansion and contraction, the motor is normal in operation, and the feng shui is smooth, before drilling, otherwise maintenance treatment must be carried out.
When drilling, the propulsion speed and penetration speed should be appropriate to prevent sticking from damaging the drill pipe and bit. When drilling, the drill pipe and the English-Cheng Yi line of the drilling rig shall not be inclined relatively. After the anchor drill is used, rinse it with water and put the feng shui pipes in order. It is forbidden to put the drilling rig in disorder.
During the drilling of tunnel drilling rig, it is forbidden to touch the rotating drill pipe ali 1 1 with your hands, or put your hands on the air legs to prevent them from squeezing your hands when the air legs expand and contract. At the same time, the operator should stand on the side far away from the drilling rig, and should not stand directly below the drilling rig to prevent the drilling rig from breaking and hurting people.