XDKD-4A Full Hydraulic Underground Drill Rig

Main Machine

Please refer the following diagram for the main machine section. It is made up with 5 sections: 1. Foot Clamp Assembly , 2. Mast Assembly, 3. Machine Frame, 4. Drill Head, 9.Support Bar Assembly.

Instructions for the Main Machine:

1. Foot Clamp

It is in the structure of clamping or releasing hydraulic chuck with two cylinders pushing the taper sleeve. It is in the function as: ① To work together with drill head, the clamp can hold rod for making and breaking. ② There is a centralizer to control the rod for its reliability to guarantee the well drilling.

2. Mast assembly

Mast is rectangular box-type structure whose inside has an oil cylinder. It has chain wheel and chain on front and rear side. The clamp is equipped on the front side of the mast. The chain is the multiplication transmission-mechanism system made with cylinder, chains and chain-wheels. There are flat guides on the mast, and there are clamp installed at the front of the mast. The guides can make the drill head movement in stability.

3. Machine Frame

It is consists of one swing arm and base. It is in the most stable tri-angle framework with under installation of dual hydraulic cylinders structure. The swing arm is controlled by hydraulic cylinders for its movement (in vertical way), and it is controlled and operated manually for its horizontal movement, i.e. releasing the four pressure plates(not allowed to have them removed) and fixed or compacted tightly after their properly adjustment.

4. Drill Head

It is driven by hydraulic motors and controlled for its rotation speed hydraulically in mechanical two shifts top driving structure. It is in the function of adjustable of motor speed, working together with foot clamp for drill rod making and breaking or tightening. A speed device installed at the drill head base for the easy speed adjustment. The extension or retraction of cylinder piston bar in the mast is driven by chain for its moving forward or backward of the drill head.

Power Station

Please refer the following diagram for the power unit section. The power unit is consisted of two sections: 7. Power Unit Assembly  8. Power Assembly

Please refer the instruction for Power Unit as below:

7. Power Station Assembly

It consists of four tires and frame rack with steering organization

8. Power Assembly

The power assembly is consisted of direct connected triple-hydraulic pump, front-pump, mid-pump and rear-pump. The front pump provides hydraulic liquid to the drill head motor and auxiliary and motor speed adjustment device to provide pressure oil for motor rotation and auxiliary winch lifting. The mid-pump provides pressure oil to feeding cylinder for its fast feeding, to foot clamp, to mixer, swing cylinder and mast movement cylinder. The rear-pump provides pressure oil to feeding cylinder for its feeding operation.

Other Parts

5. Hydraulic System; 6. Control Panel; 10. Mud Pump; 11. Electric System etc.

Instructions for other Parts:

5. Hydraulic System

Adopted the famous brands of hydraulic components made in China to form a operation system to control each hydraulic component for its operation action. In the documents, the hydraulic system consists of hydraulic scheme and piping arrangement.

Adopting the advanced hydraulic system of load-sensitive, proportional control in the design for XDKD-4 AFull Hydraulic Underground Drill Rig. With feedback of loading-sensitive system of the hydraulic system, the pump displacement can be adjusted to the best state.

10. Control Panel

It consists of position instrument, indication device, hydraulic control valve and control valve. They are used for monitoring and control of the hydraulic system.

10. Mud Pump

The mud pump section a mud pump in BW-160 model driven by electric motor. It is the main corollary equipment of the rig.

The main corollary equipments and hydraulic components are famous brands made in China with guaranteed service and spare parts providing.