Latest Reliable Pushing Clutch For Durable Drilling Rig

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. The characteristics of pneumatic-tyred clutch are as follows: large transmitted torque, steady joint, easy to install, vibration absorption, compensation to an extent for the relative radial offset and relative angular offset of drive and driven shafts, small inertia of the driven parts, long service life, compact structure and good sealing.

Furthermore, due to great resistance to deformation of pneumatic tyres, the service life of such tyres will be shortened when the operating temperature is over 60°C, and they tend to become fragile when the temperature is lower than -20°C. The joint element of a pneumatic clutch is mainly made up of friction disk and friction block and so on. Pneumatic-tyred clutch can be divided into common type and ventilation type in terms of structure.

Technical parameters of air clutches
type LT300/100 LT500/125T LT600/125T LT700/135CBC LT800/135 LT700/200
rotata speed
(r/min) max 2332-2667 1642-1877 1352-1547 1198-1450 1099-1328 1009-1155
rating 1348-1542 949-1085 781-894 687-881 635-768 583-668
torsional moment (N.m) max 3080-4030 10455-13670 14810-19360 22350-32660 28850-42160 75050-98150
rating 2025-2686 6790-9114 9875-12908 14900-21775 19230-28080 50020-65440
weight(Kg) 11 44 53 85 114 67
working pressure(Mpa) 0.7—0.8 0.7-0.8 0.7—0.9 0.7—0.9 0.7—0.9 0.7—0.9
pneumatic tube cubage (L) 1.3 5 5 3.75 4 17
attrition annulus dia (mm) Φ300 Φ500 Φ600 Φ700 Φ800 Φ700
join link
size(mm) max dia. Φ450 Φ720 Φ820 Φ900 Φ1015 Φ1000
max width 115 154 154 176 176 240
bolt number and dia. 12-Φ13H13 12-Φ17H13 16-Φ17H13 20-Φ17H13 24-Φ17H13 12+4-Φ27+25H4
bolt distributing dia. Φ430 Φ690 Φ790 Φ870 Φ975 Φ1350
air tilet pipe screw thread M20*1.5/M30*1.5 M20*1.5/M20*1.5 M20*1.5/M20*1.5 M20*1.5/M30*1.5 M20*1.5/30*1.5 M33*1.5/M45*1.5