ROPE HOIST

摘要

A rope hoist which hoists and lowers a cargo via a wire rope includes: a frame structure which rotatably supports a wheel; a rope drum mechanism which is provided on one side of the frame structure in a width direction, and includes a drum motor which rotates the rope drum; a counterweight which is provided on another side of the frame structure in the width direction and is arranged in a state of having a space with respect to the frame structure; and a control unit which is attached to a side of the counterweight opposite to the rope drum mechanism in the width direction and inverter-controls the drum motor, to the rope drum mechanism side of the counterweight, a braking resistor part which processes regenerative electric power in the inverter control is attached in a state of being located in the space.

主权项

1. A rope hoist which enables movement along a rail direction by driving a wheel with respect to a rail, and hoists and lowers a cargo suspended therefrom via a wire rope by changing a winding length of the wire rope by rotation of a rope drum, the rope hoist comprising:
a frame structure which rotatably supports the wheel; a rope drum mechanism which is provided on one side of the frame structure in a width direction orthogonal to the rail direction, and comprises the rope drum and a drum motor which rotates the rope drum; a counterweight which is provided on another side of the frame structure in the width direction and is arranged in a state of having a space with respect to the frame structure; and a control unit which is attached to a side of the counterweight opposite to the side where the rope drum mechanism is attached in the width direction and inverter-controls the drum motor, to the rope drum mechanism side of the counterweight, a braking resistor part which processes regenerative electric power in the inverter control is attached in a state of being located in the space.