A hoisting device for height-limited space structural members

Abstract

This invention discloses a hoisting device for structural components in height-restricted spaces, comprising a lifting beam, a winch assembly mounted on the lifting beam, and a sling wound around the winch assembly. The two ends of the sling pass under both ends of the lifting beam, and the middle portion of the sling is wound around the winch assembly. The winch assembly rotates to raise one end of the sling and lower the other, thus lifting the structural component. This invention significantly reduces the lifting distance between the hook of the gantry crane and the lifted component through the rigid lifting beam and the sling mounted on it, ensuring that the wire rope angle meets hoisting specifications and preventing component deformation. By using the winch assembly and winding the sling around it, the rotation of the winch assembly allows one end of the sling to rise and the other to fall, thereby adjusting the center of gravity of the lifted component to be aligned vertically with the hook of the gantry crane, improving hoisting stability.

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