JTPB Mining Explosion-Proof Hoisting Winch

Start the explosion-proof motor → transmit power to the high-speed shaft of the reducer via an elastic coupling → reduce speed through two-stage gear reduction → transmit power from the reducer’s driven shaft to the main shaft assembly via a gear coupling → drive the drum to rotate

When the motor rotates forward, the wire rope wound around the drum causes the lifting container to rise.

When the motor reverses direction, the drum releases the wire rope, causing the container to descend.

By changing the motor’s direction and rotational speed, precise vertical positioning control of the container within the wellbore is achieved.

The electrical equipment adopts a flameproof design; its enclosure can withstand internal explosion pressure and prevent flames from escaping.

All electrical connections are fitted with special seals to prevent gas leakage from causing an explosion.

Normal operation: The hydraulic station supplies pressure, causing the disc brake to release.

Normal braking: the hydraulic unit releases pressure, and the spring force drives the brake disc to clamp, enabling a smooth stop.

Emergency: When a safety device is triggered, immediately cut off the power supply and apply the brakes to prevent the accident from escalating.

Advantages of variable-frequency technology: By employing AFE self-commutated variable-frequency technology, when a heavy load is lowered or decelerates, the system automatically switches to power generation mode, converting kinetic energy into electrical energy and feeding it back into the grid, thereby achieving energy savings of over 30%; additionally, it provides extra braking torque, enhancing safety.