A skip hoist of a blast furnace includes a winch system. In order to provide an improved drive system for a skip hoist of a blast furnace, the winch system includes a winch drum, rotatably mounted about a drum axis; at least three drive motors; and a transmission for transferring a drive force from each of the drive motors to the winch drum.

The skip hoist further relates to a blast furnace.

A skip hoist of a blast furnace includes a winch system. In order to provide an improved drive system for a skip hoist of a blast furnace, the winch system includes a winch drum, rotatably mounted about a drum axis; at least three drive motors; and a transmission for transferring a drive force from each of the drive motors to the winch drum.

The skip hoist further relates to a blast furnace.

A winch integrated with a permanent magnet brushless motor and a controller includes a brushless motor and a controller. The brushless motor includes a stator having a wire coil, and a motor bracket. The stator is fixedly provided in the motor bracket. A rotor and a rotating shaft fixed in a rotor center are provided inside the stator. The rotating shaft is rotatably connected to the motor bracket, one end of the rotating shaft is fixedly connected with a magnet mount, and a cylinder magnet is mounted in the magnet mount. The controller includes a control circuit board fixed to one end of the motor bracket proximal to the cylinder magnet. A sensor chip for angle sensing in conjunction with the cylinder magnet is provided on the control circuit board.

A winch integrated with a permanent magnet brushless motor and a controller includes a brushless motor and a controller. The brushless motor includes a stator having a wire coil, and a motor bracket. The stator is fixedly provided in the motor bracket. A rotor and a rotating shaft fixed in a rotor center are provided inside the stator. The rotating shaft is rotatably connected to the motor bracket, one end of the rotating shaft is fixedly connected with a magnet mount, and a cylinder magnet is mounted in the magnet mount. The controller includes a control circuit board fixed to one end of the motor bracket proximal to the cylinder magnet. A sensor chip for angle sensing in conjunction with the cylinder magnet is provided on the control circuit board.

A cable drawworks for a drilling rig is provided having a tubular cable reel with an electric motor placed within the cable reel, and a speed reducing unit coupling the motor to the cable reel. The speed reducing unit can include a cycloidal gear mechanism or a ring gear mechanism. The drawworks can include an air pathway passing through the motor and the cable reel for cooling or for heating in cold weather applications.

A cable drawworks for a drilling rig is provided having a tubular cable reel with an electric motor placed within the cable reel, and a speed reducing unit coupling the motor to the cable reel. The speed reducing unit can include a cycloidal gear mechanism or a ring gear mechanism. The drawworks can include an air pathway passing through the motor and the cable reel for cooling or for heating in cold weather applications.

A winch including a drive motor, a cable drum, and a gear train assembly coupled to the drive motor and including a planetary gear set having a ring gear positioned in a gear train housing. The gear train housing including a radial clutch mount and an axial clutch mount. A clutch mechanism is selectively positionable at the radial clutch mount, in a first configuration, and the axial clutch mount, in a second configuration. The clutch mechanism is operable to selectively lock and unlock the ring gear to the gear train housing, thereby engaging and disengaging the cable drum from the gear train assembly.

A winch including a drive motor, a cable drum, and a gear train assembly coupled to the drive motor and including a planetary gear set having a ring gear positioned in a gear train housing. The gear train housing including a radial clutch mount and an axial clutch mount. A clutch mechanism is selectively positionable at the radial clutch mount, in a first configuration, and the axial clutch mount, in a second configuration. The clutch mechanism is operable to selectively lock and unlock the ring gear to the gear train housing, thereby engaging and disengaging the cable drum from the gear train assembly.

A drum and ring gear assembly for winches with geared transmission which comprises a substantially cylindrical drum adapted to be actuated rotationally about its own longitudinal axis and a ring gear accommodated substantially coaxially inside the drum, which are mutually associated so as to rotate integrally about the longitudinal axis by virtue of connecting means; the connecting means is of the positive and/or direct friction type.

A drum and ring gear assembly for winches with geared transmission which comprises a substantially cylindrical drum adapted to be actuated rotationally about its own longitudinal axis and a ring gear accommodated substantially coaxially inside the drum, which are mutually associated so as to rotate integrally about the longitudinal axis by virtue of connecting means; the connecting means is of the positive and/or direct friction type.