US 8,527,093 B2 · Apparatus for controlling the position of crane tong according to slab bending and the method thereof

Abstract

An apparatus and method for controlling the position of the tongs of a crane depending on bending of a slab are disclosed. Side surface detection units are installed at both ends of the tongs of a crane for gripping the side surfaces of one or more slabs, and are configured to detect one or more gaps generated due to bending of one of the slabs. A distance detection unit is configured to detect the distance between an uppermost slab and the crane. A control unit is configured to adjust the final grip position of the tongs using information about the gaps generated due to the bending of the slab. The information about the gaps is detected by the side surface detection units and the distance detection unit.

Claims13

Dependent claims

An apparatus for controlling a position of tongs of a crane depending on bending of a slab, comprising:

side surface detection units installed at both ends of tongs of a crane for gripping side surfaces of one or more slabs, and configured to detect one or more gaps generated due to bending of one of the slabs;
a distance detection unit configured to detect distance between an uppermost slab and the crane;
and a control unit configured to adjust a final grip position of the tongs using information about the gaps generated due to the bending of the slab, the information about the gaps being detected by the side surface detection units and the distance detection unit.

A method of controlling a position of tongs of a crane depending on bending of a slab, comprising the steps of:

receiving work information related to one or more slabs from a work instruction system and moving tongs of a crane;
detecting information about one or more gaps generated due to bending of one of the slabs using side surface detection units and a distance detection unit while moving the tongs of the crane toward the slab;
and calculating a final grip position of the tongs by reflecting the detected information about the gaps of the slab into an initial grip position of the tongs, the initial grip position being determined based on the work information,
and then moving the tongs of the crane to the final grip position.

1 more element

Dependencies are inferred from the claim text.

Apparatus for controlling the position of crane tong according to slab bending and the method thereof

Life of this patent

Apparatus for controlling the position of crane tong according to slab bending and the method thereof

Life of this patent

Abstract

Claims13