An anti-rotation device for suspending a load under a machine for lifting and moving this load includes a sling system provided with a fastener to the machine. It further includes a spreader beam, having a main longitudinal axis and a yaw rotation vertical transverse axis, including: a system for upper fastening to the sling system so it can be suspended in a substantially horizontal arrangement of its main longitudinal axis and free about its vertical transverse axis under the machine using the sling system; a system for lower fastening to the load, allowing driving of the load by the spreader beam about its vertical transverse axis. The spreader beam includes a propulsion unig disposed in such a way as to engage its rotation, selectively in one direction or in the other, about its vertical transverse axis when it is suspended from the machine via the sling system.

The present invention relates to an assembly for rotating a suspended load around a substantially vertical axis, the assembly comprising an inner rim configured to have a fixed relationship with the suspended load to be rotated, an outer rim engaging the inner rim in a manner so that the inner and outer rims are configured to perform rotational movements relative to each other during rotation of the suspended load, and a drive unit for performing the relative rotational movement between the inner and outer rims. The assembly of the present invention may be secured to a lifting yoke for lifting wind turbine related components, such as entire wind turbine towers, wind turbine tower sections, nacelles, rotor blades or containers.

The present disclosure provides a novel multi-purpose adjustable hanging beam and a hanging method. The novel multi-purpose adjustable hanging beam includes two parallel main beams, two ends of each main beam are respectively connected with end beams, a plurality of displacement hangers sliding relative to the main beams are arranged on the main beams, screw rods are arranged between the two main beams, the displacement hangers are in threaded connection with the screw rods, a first motor is arranged at one end of each screw rod, reduction gearboxes are arranged between the first motors and the screw rods, one end of each screw rod is connected with the corresponding reduction gearbox, and the first motors and the reduction gearboxes are mounted on the end beams.

A method for positioning a straddle carrier for containers and a container to be placed behind a container that has already been placed. The straddle carrier is moved by means of travel supports, travel drives, and a controller that interacts with same, and measurement signals from sensors arranged on the straddle carrier are processed by the controller in order to move and position the straddle carrier and the container to be placed.

A method, computer program and equipment for controlling a crane and method for updating a crane. A crane is controlled or the crane is updated to be controlled by: a) forming video image at a lifting point of a crane; b) determining a current and a future position of a lifting member or of a load with respect to the formed video image; c) combining to the formed video image an indication of the future position of the lifting member or of the load; and d) performing repeatedly again steps b) and c) for real time indicating of the future position of the lifting member or of the load.

A crane load centering assembly includes a crane that has a boom, a sheave that is rotatably coupled to the boom and a load block. A transmitting unit is coupled to the sheave having the transmitting unit being directed downwardly from the sheave. The transmitting unit transmits an alignment signal along a line that is vertically oriented. In this way the alignment signal can travel in the direction of the force of gravity with respect to the boom. A plurality of sensors is provided and each of the sensors is coupled to the load block such that each of the sensors is positioned below and is aligned with the transmitting unit. One of the sensors receives the alignment signal when the crane lifts a load and the load deflects from beneath the sheave. A plurality of light emitters is provided and each of the light emitters is coupled to the load block. Each of the light emitters is in electrical communication with a respective one of the sensors and each of the light emitters has one of the sensors associated therewith. Each of the light emitters is turned on when the associated sensor receives the alignment signal to communicate a visual alert for the deflection of the load.

A crane load centering assembly includes a crane that has a boom, a sheave that is rotatably coupled to the boom and a load block. A transmitting unit is coupled to the sheave having the transmitting unit being directed downwardly from the sheave. The transmitting unit transmits an alignment signal along a line that is vertically oriented. In this way the alignment signal can travel in the direction of the force of gravity with respect to the boom. A plurality of sensors is provided and each of the sensors is coupled to the load block such that each of the sensors is positioned below and is aligned with the transmitting unit. One of the sensors receives the alignment signal when the crane lifts a load and the load deflects from beneath the sheave. A plurality of light emitters is provided and each of the light emitters is coupled to the load block. Each of the light emitters is in electrical communication with a respective one of the sensors and each of the light emitters has one of the sensors associated therewith. Each of the light emitters is turned on when the associated sensor receives the alignment signal to communicate a visual alert for the deflection of the load.

A method for controlling operation of a wood-handling device in a work machine. The wood-handling device is attached through a rotation device to an end of a set of booms of the work machine to create a desired orientation of the wood-handling device for the operation. The orientation of the wood-handling device using the rotation device is tied on the basis of the operation to be performed using the set of booms. The orientation of the wood-handling device is tied to the position of the end of the set of booms. The position of the end of the set of booms is defined while performing the operation, on the basis of the position of the end of the set of booms. The wood-handling device is oriented using the rotation device, according to the said tie.

This crane is provided with: a operable functional unit; an actuator; a generation unit that generates a first control signal including a first deceleration signal section composed of a control signal for decelerating a speed of the operable functional unit from a first speed to a second speed and a first constant-speed signal section composed of a control signal for maintaining the speed of the operable functional unit at the second speed; a filter unit for filtering the first control signal to generate a second control signal; and a control unit that controls the actuator so as to decelerate the operable functional unit based on the second control signal, then controls the actuator so as to maintain the speed at the second speed, and controls the actuator so as to zero the speed when a load has been moved to a location satisfying a prescribed condition.

A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.