If the clearance is too large, it will reduce the working efficiency of the compressor, resulting in insufficient air output and insufficient power, which will cause the machine to over-temperature and automatically stop; if the clearance is too small, even if it runs normally temporarily for a long time, after the shaft pump is worn out, It is also easy to cause the rotor end face to rub against the exhaust end cover and damage the main engine.
[pdf] As a kind of friction clutch that uses compressed air as manipulating power source, pneumatic-tyred clutch is widely used in such equipment as oil drilling rig and workover rig, and is also an important part of the drive systems of oil drilling rig and workover rig.
[pdf] Drilling derricks and Rig Masts consist of a steel framework with a square or rectangular cross-section. Their purpose is to support the hoisting equipment and rack the tubulars while tripping pipe. The numbe.
[pdf] 
