APPARATUS FOR IDENTIFYING CONNECTION TRUNNION AND HOCK

摘要

An embodiment of the present invention relates to an apparatus to check coupling between a trunnion and a hook to check the condition of the coupling between a hook connected to a crane and a trunnion placed on a side surface of a chute. The apparatus to check the coupling between the trunnion and the hook comprises: a rotating shaft installed in a fixed part fixated to a side surface of an end part of a hook to be rotated; a coupling checking unit which has a coupling checking plate placed on one surface thereof, is connected to the rotating shaft to be rotated when touched by the trunnion, and is operated so that the other part of the surface of the coupling checking unit touches the trunnion to place the coupling checking plate towards the crane when the trunnion is seated on the hook; and a stopper installed in the hook part from the rotating shaft at a predetermined angle and limits the rotational range of the coupling checking unit. It is preferable to allow a driver to check the condition of the coupling between the hook and the trunnion using his/her naked eyes inside the driver′s cage of the crane by the position of the coupling checking plate during an operating process when the crane makes the hook be caught by the trunnion.