PIT COVER DISORDER DETECT APPARATUS

摘要

PURPOSE: A disorder detection device of a pit cover is provided to make an unloader travel smoothly by detecting the eccentric covering and derailment of a pit cover while an unloader is traveling, to shorten the time and cost required for maintenance by preventing malfunction and breakdown, and to improve unloading efficiency. CONSTITUTION: A disorder detection device(100) of a pit cover comprises a main body portion coupled to a power carriage and composed of a frame(11) and a housing, a position detection portion sensing positional changes due to derailment of a pit cover(3) and comprising an operating lever(21) fixed to the frame and equipped with a detection roller(23), a first transfer portion and a second transfer portion transferring the changed position detected by the position detection portion to a disorder detection portion finally and comprising a touch lever, a position return portion fixed to the frame to support the touch lever elastically, and a disorder detection portion attached to the main body portion to receive and to detect the disorder position and composed of a limit switch(61) interlocked with the touch lever.