The present application relates to a stopping method and apparatus for a device with a hoisting mechanism and a crane. The method includes: generating a displacement change rate according to position offset information of a hoisting handle of the device when the position offset information meets a triggering condition; comparing the displacement change rate with a preset threshold to generate a stopping control instruction; and controlling an overhead system of the device to perform deceleration stopping according to the stopping control instruction. The stopping method and apparatus for the device with the hoisting mechanism, the crane, the electronic device and the computer readable medium involved in the present application may achieve the purpose of rapid stopping control only through the hoisting handle of the device, and reduce the requirement for the driver's reaction time and increase the safety of the device when emergency stopping is required.

An electric stair lift system for transporting people and/or cargo up and down a flight of stairs includes a pair of parallel rails, a platform that is slidably engaged with the rails, an electric winch with a take-up spool, and pair of straps attached between the slidable platform and the take-up spool of the winch. In a preferred embodiment, the electric stair lift system is portable, so that it may be installed in such a way that it may be easily removed, stored and transported, as desired.

A simulated environment includes a motion control system. The motion control system may comprise a suspension structure, a housing slidably engaged to the suspension structure such that the suspension controller translates in a planar manner relative to the suspension structure. A rotary component may be rotatably attached to the housing. A plurality of winches may be attached to the rotary component, the plurality of winches having cables to allow longitudinal movement of the cables parallel to a force of gravity.

A simulated environment includes a motion control system. The motion control system may comprise a suspension structure, a housing slidably engaged to the suspension structure such that the suspension controller translates in a planar manner relative to the suspension structure. A rotary component may be rotatably attached to the housing. A plurality of winches may be attached to the rotary component, the plurality of winches having cables to allow longitudinal movement of the cables parallel to a force of gravity.

A system for positioning equipment comprises a hoist including an electric motor coupled to a pulley for exerting a pulling force upon a tension member that extends to a distal end configured to attach to an elevated structure. The system also comprises a portable power supply including a battery supplying DC power, and an inverter configured to generate and supply AC power to the hoist for driving the electric motor and thereby lifting the hoist toward the elevated structure. A method for pre-positioning a hoist comprises attaching a tension member of a hoist to an elevated structure; generating AC power from a DC source by an inverter of a portable power supply; and lifting the hoist using the portable power supply. Thus, the hoist can be pre-positioned in an elevated location before utility power is available.

Disclosed is a winch control apparatus for a crane, which comprises: a first compensation torque value calculation section which calculates, when a hoisting manipulation being input, based on a difference speed between a detected rotational speed and a target speed according to a manipulation amount of the hoisting manipulation, a first compensation torque value for enabling an electric motor to generate a reverse-rotation-preventing torque which is a torque in a hoisting direction and corresponding to the difference speed; and a second compensation torque value calculation section which calculates, when the hoisting manipulation being input, based on a detected load value, a second compensation torque value for enabling the electric motor to generate a load bearing torque which is a torque in the hoisting direction and necessary for bearing a load of the load value.

Disclosed is a winch control apparatus for a crane, which comprises: a first compensation torque value calculation section which calculates, when a hoisting manipulation being input, based on a difference speed between a detected rotational speed and a target speed according to a manipulation amount of the hoisting manipulation, a first compensation torque value for enabling an electric motor to generate a reverse-rotation-preventing torque which is a torque in a hoisting direction and corresponding to the difference speed; and a second compensation torque value calculation section which calculates, when the hoisting manipulation being input, based on a detected load value, a second compensation torque value for enabling the electric motor to generate a load bearing torque which is a torque in the hoisting direction and necessary for bearing a load of the load value.

Systems and methods for detecting a layer-to-layer transition of a lifting steel wire rope on a reel are described. The system includes a reel assembly for winding a steel wire rope on a reel and a tensioning assembly for tensioning a segment of said steel wire rope. The system further includes a loading assembly and a lead screw sliding assembly. The loading assembly provides a vertical loading to the tensioning assembly so as to generate a loading force between the tensioned steel wire rope and the steel wire rope wound around the reel. The lead screw sliding assembly drives the tensioning assembly so as to move on a horizontal guide rail to generate a relative displacement between the tensioned steel wire rope and the steel wire rope wound around the reel. The tensioning assembly is connected to the loading assembly via a first threaded rod and a static torque sensor.

A winch is described that includes a rotatable drum comprising a winch cable windably connected to the winch drum, and a removable vehicle winch frame. The winch comprises a winch motor, a gear assembly, and a power bar spanning the winch drum, the power bar being connected to an electrical power source and comprising an electrical power connection for powering auxiliary hardware. A winch controller comprising manual and app related software in communication with the motor, allows the controller to receive manual and or app related commands from a user to operate the winch assembly.

A winch is described that includes a rotatable drum comprising a winch cable windably connected to the winch drum, and a removable vehicle winch frame. The winch comprises a winch motor, a gear assembly, and a power bar spanning the winch drum, the power bar being connected to an electrical power source and comprising an electrical power connection for powering auxiliary hardware. A winch controller comprising manual and app related software in communication with the motor, allows the controller to receive manual and or app related commands from a user to operate the winch assembly.