Motor control architecture including a travel, a hoist, and a controller is disclosed. The travel disposed on a main rail having an auxiliary-encoder includes a master-driver and a slave-driver for driving two motors. Each motor has a main-encoder. The hoist drives a rope and calculates a rope length continuously. The controller calculates an anti-sway position command based on the rope-length and a position command. The two drivers perform a full closed-loop computation based on a feedback of one main-encoder, a feedback of the auxiliary-encoder, and the anti-sway position command. Wherein, the master-driver controls one motor based on a speed command generated by the full closed-loop computation and the slave-driver follows the speed command and a torque command of the master-driver to drive another motor; or the two drivers compensate the torque command based on an error value between the feedback of one main-encoder and the feedback of the auxiliary-encoder.

A bridge crane assembly includes a crane track that is positioned in a warehouse. A cylinder is included that has a plurality of tracks integrated into the cylinder. A drive unit is integrated into the cylinder and the drive unit has a pair of drive wheels that each engages the crane track. The drive unit rotates each of the drive wheels in a first direction or a second direction. A carriage extends around the cylinder and a plurality of rollers is each rotatably coupled to the carriage. Each of the rollers engages a respective one of the tracks on the cylinder thereby facilitating the carriage to travel along the cylinder. A transport unit is integrated into the carriage and the transport unit engages the cylinder. The transport unit is actuatable to urge the carriage to travel along the cylinder in either a primary direction or a secondary direction.

A bridge crane assembly includes a crane track that is positioned in a warehouse. A cylinder is included that has a plurality of tracks integrated into the cylinder. A drive unit is integrated into the cylinder and the drive unit has a pair of drive wheels that each engages the crane track. The drive unit rotates each of the drive wheels in a first direction or a second direction. A carriage extends around the cylinder and a plurality of rollers is each rotatably coupled to the carriage. Each of the rollers engages a respective one of the tracks on the cylinder thereby facilitating the carriage to travel along the cylinder. A transport unit is integrated into the carriage and the transport unit engages the cylinder. The transport unit is actuatable to urge the carriage to travel along the cylinder in either a primary direction or a secondary direction.

The present disclosure provides a device for fixing a gantry crane rail in a factory building and a gantry crane system using the same. The device comprises a main body, which comprises a top portion, a first surface and a second surface opposite the first surface. The top portion is fixed to a bottom surface of a beam of the factory building, and the first surface and the second surface are substantially parallel to the crane rail. The device further comprises a first protruded support positioned on the first surface and a second protruded support positioned on the second surface.

The present disclosure provides a device for fixing a gantry crane rail in a factory building and a gantry crane system using the same. The device comprises a main body, which comprises a top portion, a first surface and a second surface opposite the first surface. The top portion is fixed to a bottom surface of a beam of the factory building, and the first surface and the second surface are substantially parallel to the crane rail. The device further comprises a first protruded support positioned on the first surface and a second protruded support positioned on the second surface.

A system and method for construction of a framed structure which permits on-site storage and relocation of construction materials using trolleys and cranes supported by the framed structure. The system provides a runway surface for removable attachment of trolleys, crane bridges, and platforms by offsetting the first longitudinal beam and a second longitudinal beam from a cross beam and where the first longitudinal beam, second longitudinal beam, and cross beam of the system provide components for the framed structure.

A system and method for construction of a framed structure which permits on-site storage and relocation of construction materials using trolleys and cranes supported by the framed structure. The system provides a runway surface for removable attachment of trolleys, crane bridges, and platforms by offsetting the first longitudinal beam and a second longitudinal beam from a cross beam and where the first longitudinal beam, second longitudinal beam, and cross beam of the system provide components for the framed structure.

A crane girder for a crane, such as an overhead or gantry crane, that is configured as a trussed girder with an upper chord, a lower chord, and braces connecting the chords to each other. At least one of the braces is designed flatly and has a main surface which extends transversely to a longitudinal direction of the crane girder. The brace is removably secured to the upper chord and/or the lower chord.

A crane girder for a crane, such as an overhead or gantry crane, that is configured as a trussed girder with an upper chord, a lower chord, and braces connecting the chords to each other. At least one of the braces is designed flatly and has a main surface which extends transversely to a longitudinal direction of the crane girder. The brace is removably secured to the upper chord and/or the lower chord.

A system includes a load moving machine, including a frame and a movable assembly coupled to the frame. The movable assembly includes a lift portion, a rotational portion, a first translational portion, and a second translational portion.