Belt misalignment sensing and sensor status sensing apparatus and method of use

摘要

A misaligned belt sensing apparatus determines when a conveyor belt becomes misaligned, indicating repair or replacement are required. At least one sensing apparatus is placed nearly in contact with the belt which produces heat due to friction between the belt and the apparatus when it comes in contact with same due to misalignment. The sensed temperature is compared to threshold values and indicates when the conveyor belt has become misaligned, as well as determining operational wear status of the sensing apparatus after a number of such misalignments. Each heat sensing apparatus comprises at least one thermally conductive plate where a moving misaligned belt rubs against the thermally conductive plate and generates heat due to friction between the moving belt and the thermally conductive plate, where each plate has one or more independent temperature sensing elements for misalignment detection and indication, also detecting wear status of the plates of the apparatus.