The present invention refers to loading crane comprising: an articulated arm, comprising at least one first and one second bodies successively connected in order to form an open kinematic chain, wherein the second body is translatingly and/or rotatably movable with respect to the first body; a hydraulic circuit adapted to convey a working fluid for actuating the articulated arm.

Said hydraulic circuit comprises a segment associated to one of the first and second bodies comprising: at least one sliding rigid tube slidingly translatingly connected to the body to which the segment of the hydraulic circuit is associated; at least one stationary tube integrally connected to the body to which the segment of the hydraulic circuit is associated; a flexible tube fluidically interconnecting the sliding rigid tube and the stationary tube.

A tracked vehicle, controller for the tracked vehicle, and a method performed thereon are provided that enable the pilot to steer the tracked vehicle using an existing joystick of the tracked vehicle.

The present invention relates to an eco-friendly wind power generation apparatus that can perform power generation using wind by providing the blades of a wind power generator on a jib of a tower crane, and can perform wind power generation at the optimum altitude and in the optimum direction by automatically or manually performing the lifting/lowering and swing operation of a jib even when wind speed is insufficient because wind is not blowing, or perform wind power generation using artificial wind power generated by the operation of the jib, thereby generating a lot of electricity in necessary places and supply the electricity to all industrial sectors regardless of location and environment.

A robotic system having a movable gantry robot (10) for conducting construction operations. The gantry may have an expandable bridge (20) and articulated gantry support legs (34) as well as a support track system (60) holding a gantry robot (800) which may hold one or more implements and peripheral devices (806). The device can be moved by propulsion mechanisms, a controller, and one or more geo-positioned control devices to provide position information for the robotic gantry as it moves back and forth along a plurality of work sites (700). The robotic gantry is connected to a power supply system (236). The controller is automated, self-navigating, and activates, deactivates, and/or changes the operation of the propulsion mechanisms, and deploys, retracts, activates, deactivates, and/or changes the operation of one or more of the construction implements. The height of the frame may be adjusted by extending and rotating risers and booms to accommodate different building heights or sub-level heights at a worksite. A conveyor system is optimized for removing dirt from or delivering material to the robotic arm. This invention can be applied to automating construction jobs including surveying, land preparation, excavation, foundation, masonry, framing, and additive fabrication.

A service unit apparatus, which is suited to support one or more service equipment devices such as a fuel-powered engine, an electric motor, an electric power generator, a hydraulic pump, a crane, an air compressor, tanks to hold compressed air, batteries, a battery charger, a power unit and/or a reservoir of hydraulic fluid. The service unit may be configured to attach to a service vehicle rearward of the cab of the service vehicle. The service unit may be constructed to include one or more outriggers.

A leveling system for a lift device includes a control system. The control system has programmed instructions to acquire operation data regarding operation of the lift device, fluidly couple a first leveling actuator and a second leveling actuator based on the operation data, acquire an update regarding the operation data, fluidly decouple the first leveling actuator and the second leveling actuator based on the update regarding the operation data, and selectively control the first leveling actuator and the second leveling actuator to (i) selectively reposition a first tractive element and a second tractive element relative to each other about a longitudinal axis defined by the lift device and (ii) selectively reposition the first tractive element and the second tractive element about a first lateral axis defined by the lift device.

The invention relates to a working machine, in particular material handling machine, comprising a boom and a boom bracing to be actuated by means of an actuator, characterized in that the actuator is operatively connected to the boom bracing by means of a first lever rotatably articulated to the turntable in order to introduce the required tensile force into the bracing.

A hydraulically actuated liftable and lowerable hook of a crane has a hydraulic system comprises at least one working machine with a hydraulic motor driving a winch. At least one drive machine comprising a pump is connected directly or indirectly to at least one of the working machines by means of two connections via corresponding working lines, which serve as a feed or return depending on the operating state of the working machine. A lowering brake valve is provided in one working line and is connected to the other working line via a control line such that the lowering brake valve is displaceable against a restoring force by pressure, which prevails in the other working line and is forwarded via the control line, from the blocking position of said valve into a through-flow position for lowering the hook by means of a primary winch.

A crane, a method for assembly of a crane and a method for disassembly of a crane are disclosed. In accordance with the method, a first mast is fixed in a vertical position. A top mast section of a second mast is positioned adjacent to and outside of the first mast. The top mast section is moved vertically upwards, and this movement is guided by a guide system. Then, the top mast section is fixed relative to the first mast at a position which is at a larger vertical distance from the crane base. Then, a first intermediate mast section of the second mast is fixed to a lower end of the top mast section to build up the second mast. Then, the first intermediate mast section is connected to a pivot, and the second mast is pivoted away from the first mast.

A bracket support system to connect a hoist to a connector rod and at least one hoist connector of a tractor, the bracket support system including an upper mask bracket removably disposed on a mounting mask to connect to the connector rod, at least one lower bracket removably disposed on a rear of the hoist, a stiffener bracket disposed on at least a portion of the hoist to prevent damage to the mounting mask in response to lifting at least one object on the hoist, and a support shaft disposed within at least a portion of the rear of the hoist.