Bearings all adopt roller ones and shafts are made of premium alloy steel.
Driving chains with high accuracy and high strength are forced lubricated.
The main brake adopts hydraulic disc brake, and the brake disc is water or air cooled.
The auxiliary brake adopts electromagnetic eddy current brake(water or air cooled) or pneumatic push disc brake.
Basic Parameters of DC Drive Drawworks:
Model of rig
JC40D
JC50D
JC70D
Nominal
drilling depth, m(ft)
with...
• Drawworks positive gears all adopt roller chain transmission and negative ones adopt gear transmission.
• Driving chains with high accuracy and high strength are forced lubricated.
• The drum body is grooved. The low-speed and high-speed ends of drum are equipped with ventilating air tube clutch.
The main brake adopts belt brake or hydraulic disc brake, while the auxiliary brake adopts configured electromagnetic eddy current brake(water or air cooled).
Basic Parame...
• Designing and manufacturing conform to API Spec 8C standard and SY/T5035 relevant technical standards etc.;
• Select high-class alloy steel die to forge molding;
• Intensity check uses finite element analysis and electrical measuring method stress test. There are one-arm elevator link and two-arm elevator link;
Adopt two-stage shot blasting surface strengthening technology.
One-arm Elevator Link
Model
Rated load (sh.tn)
Standard working le...
• The main components of drawworks are AC variable frequency motor, gear reducer, hydraulic disc brake, winch frame, drum shaft assembly and automatic driller etc, with high gear transmission efficiency.
• The gear is thin oil lubricated.
• Drawwork is of single drum shaft structure and the drum is grooved. Compared with similar drawworks, it is of many merits, such as simple structure, small volume, and light weight.
• It’s AC variable frequency motor drive and step...
F series mud pumps are firm and compact in structure and small in size, with good functional performances, which can adapt to drilling technological requirements such as oilfield high pump pressure and large displacement etc. The F series mud pumps can be maintained at lower stroke rate for their long stroke, which effectively improves the feeding water performance of mud pumps and prolongs the service life of the fluid end. The suction stabilizer, with advanced stru...