This machine gained 3 national practical new type patents invention.
1. To be equipped with hexagonal vertical shaft and hexagonal drive drilling rod,with strong rigidity and big transfer torque .
2. To be provided with cone plate friction clutch,being facile to operate,with big transfer torque.
3. To adopt rolling bearing type hoist,with wide brake band and big lifting capacity.
4. To be equipped with speed reducer and sludge pump,being integrated structure.
5. The entire machine is featured by stong adaptability,high motive power,low cost and broad compatibility.
6. To be provided with hydraulic control pressure feed mechanism for the purpose of improvement of construction efficiency.
7. To use hydraulic control well head displacement mechanism for enlargement of initial hole diameter.
It is widely used for the projects such as engineering geological investigation Geophysical investigation . small grouting hole. shot hole and water well words