American VARCO Top Drive Accessories Company is the first company in the world to develop top drives, and has developed more than 10 specifications of top drives. The newly developed TDS-8SA and TDS-11SA AC variable frequency electric drive top drives cancel the original TDS-3, TDS-3S, TDS-5, TDS-7S top drives and retain the IDS-1 type. , TDS-4H type or TDS-4S type, TDS-6S type and TDS-9S type top drive. The new series top drive API lifting load is 2500～7500kN, the continuous working torque is 10.21～, the intermittent working torque is 18.47～. The maximum speed of power is 120～500r/min, and the height of the top drive system is 4.7～7.9m. All products adopt electric drive type, among which TDS-8SA, TDS-9SA, TDS-10SA and TDS-11SA top drive , adopts AC variable frequency electric drive type, AC motor; while IDS-1, TDS-4H or TDS-4S and TDS-6S top drives use AC-SCR-DC electric drive type, DC motor; TDS- The 9SA and TDS-11SA top drives use two AC motors, while the remaining 5 models use one electric motor.
VARCO Top Drive Accessories
Top drive drilling rigs consist of the following main components and accessories:
l. Faucet-drilling motor assembly (one of the key components);
Motor bracket/guide pulley assembly (one of the key components);
Drill pipe make-up and break-out device assembly (one of the key components, it is the equipment that embodies the greatest advantages of the top drive drilling device);
Balance system;
Cooling system;
Top drive drilling device control system;
Optional auxiliary equipment.
The faucet-drilling motor assembly includes the following main components:
Drilling motor and brake (air brake)
Gearbox (gearbox);
Overall faucet;
Balancer.
