Abstract:

For the purpose of resolving the problem of the opening amount on the ZDY1200S drilling rig is too small, this paper has designed a new type of clamper that regulate the stroke by the use of nitrogen gas spring. The type and pre-compression of the nitrogen gas spring is confirmed by the reference of the clamper force, then check the key components, that proved the rationality of the clamper.

Key words: All Hydraulic Power Head Type Drilling Rig, Clamper, Nitrogen Gas Spring, Screw Arbor