A mobile shaft winch includes a carrier vehicle with a vehicle drive, which has an internal combustion engine, a rigid base frame and a rotary platform which is arranged on the base frame via a rotary connection. A drum winch is arranged on the rotary platform with a rope drum which is driven by a winch drive and designed for the winding on and unwinding of a haulage rope. The winch drive includes only an electric motor. A control system is designed for a selective operation of the electric motor on a mains supply system or on an electric generator. The internal combustion engine of the vehicle drive, drives the generator, and the generator and the internal combustion engine are arranged on the carrier vehicle.

A mobile shaft winch includes a carrier vehicle with a vehicle drive, which has an internal combustion engine, a rigid base frame and a rotary platform which is arranged on the base frame via a rotary connection. A drum winch is arranged on the rotary platform with a rope drum which is driven by a winch drive and designed for the winding on and unwinding of a haulage rope. The winch drive includes only an electric motor. A control system is designed for a selective operation of the electric motor on a mains supply system or on an electric generator. The internal combustion engine of the vehicle drive, drives the generator, and the generator and the internal combustion engine are arranged on the carrier vehicle.

A self-propelling drilling machine includes: an undercarriage. a rotary tower, a mast, a kelly bar supported by the mast, a drilling tool fixed at one end of the kelly bar, and a winch associated with the kelly bar to move the kelly bar upwards or downwards. An electric rotary machine is configured to operate as an electric motor suitable for rotating the winch and as an electric generator during the lowering of the kelly bar that causes a rotation of the winch. The machine includes a power supply unit operatively connected to the electric rotary machine.

This electric hoisting machine comprises: a motor driven by single-phase current; a cylindrical motor housing; a starting capacitor; a operating capacitor; a starting capacitor disconnecting switch; a control unit which controls the operation of the motor and which is covered by a control housing; and a housing case in which small-diameter cylindrical portions for accommodating the starting capacitor, a large-diameter cylindrical portion for accommodating the operating capacitor, and a large-diameter cylindrical portion for accommodating the starting capacitor disconnecting switch are integrally provided in a state of continuing in a horizontal row, the housing case being mounted on the outer periphery of the motor housing in such a manner that the cylindrical portions are oriented parallel to a rotation axis.

This electric hoisting machine comprises: a motor driven by single-phase current; a cylindrical motor housing; a starting capacitor; a operating capacitor; a starting capacitor disconnecting switch; a control unit which controls the operation of the motor and which is covered by a control housing; and a housing case in which small-diameter cylindrical portions for accommodating the starting capacitor, a large-diameter cylindrical portion for accommodating the operating capacitor, and a large-diameter cylindrical portion for accommodating the starting capacitor disconnecting switch are integrally provided in a state of continuing in a horizontal row, the housing case being mounted on the outer periphery of the motor housing in such a manner that the cylindrical portions are oriented parallel to a rotation axis.

To achieve a size reduction by on-off controlling non-contact switching devices with a microcomputer. When a three-phase alternating-current electric motor is to be used, lead wires of the three-phase alternating-current electric motor are connected to output terminals of a control board. When a single-phase alternating-current electric motor is to be used, two supply terminals of the control board are electrically connected together through a first connecting member, and one end of the first connecting member is defined as a single-phase alternating-current power supply terminal. A second connecting member is connected to a supply terminal, and one end of the second connecting member is defined as a single-phase alternating-current power supply terminal. A main winding of the single-phase alternating-current electric motor is connected to the output terminals, and an auxiliary winding is connected to the output terminal and the second connecting member.

To achieve a size reduction by on-off controlling non-contact switching devices with a microcomputer. When a three-phase alternating-current electric motor is to be used, lead wires of the three-phase alternating-current electric motor are connected to output terminals of a control board. When a single-phase alternating-current electric motor is to be used, two supply terminals of the control board are electrically connected together through a first connecting member, and one end of the first connecting member is defined as a single-phase alternating-current power supply terminal. A second connecting member is connected to a supply terminal, and one end of the second connecting member is defined as a single-phase alternating-current power supply terminal. A main winding of the single-phase alternating-current electric motor is connected to the output terminals, and an auxiliary winding is connected to the output terminal and the second connecting member.

A power winch for motor vehicles includes a display panel for displaying the operation status of the power winch and letting users know whether or not the power winch is situated at an electrical connection status for use, the voltage of a vehicle power supply connected to the power winch, whether or not the power winch is connected to the wireless handheld controller normally, and whether a steel wire rope of the power winch is wound or unwound, so as to improve the safety of operation, control, and use. The power winch further includes a storage holder installed on a surface of the power winch for storing the wireless handheld controller to facilitate a quick access or use of the wireless handheld controller, so as to improve the convenience of operation, control and use.

A power winch for motor vehicles includes a display panel for displaying the operation status of the power winch and letting users know whether or not the power winch is situated at an electrical connection status for use, the voltage of a vehicle power supply connected to the power winch, whether or not the power winch is connected to the wireless handheld controller normally, and whether a steel wire rope of the power winch is wound or unwound, so as to improve the safety of operation, control, and use. The power winch further includes a storage holder installed on a surface of the power winch for storing the wireless handheld controller to facilitate a quick access or use of the wireless handheld controller, so as to improve the convenience of operation, control and use.

The present invention relates to a lifting device for example in the form of a crane such as a tower crane, with a hoisting gear comprising a hoisting cable which runs off from a drum that can be driven by a hoisting gear drive, and a hoisting gear brake for holding the hoisting cable in a braked position. The invention furthermore relates to a method for starting up the hoisting gear of such a lifting device from the braked position in which the hoisting gear brake holds a hoisting load, wherein a starting torque is built up by a hoisting gear drive against the closed hoisting gear brake, and the hoisting gear brake is released upon or after reaching the starting torque. According to the invention it is proposed that when the hoisting gear brake is closed, the current hoisting load is detected by means of a load detection device and the starting torque is adjusted by the hoisting gear controller with reference to the detected current hoisting load such that the hoisting force provided by the starting torque of the hoisting gear corresponds to the detected, current hoisting load.