IMPROVEMENTS IN CONVEYOR AND COMPONENTS THEREFOR, MONITORING METHODS AND COMMUNICATION SYSTEMS

摘要

A method and system for determining the relative wear rate of an idler roller (18) employing an information system (12) having electrical circuitry to generate information, such as number of rotations per period (NRP), about the idler roller. The information system (12) may be provided in a module (10) having a stator (14) for fastening to a shaft (20) of the idler roller (18) and a rotor (16) configured to engage with a rotatable shell (22) of the idler roller. The stator (14) and rotor (16) may be configured to generate electricity to supply the information system (12) as the rotor rotates relative to the shaft (20). There is also disclosed a method of monitoring an idler bearing (24) for anticipated failure on the basis of changes in magnitude of spectral energy at calculated failure frequencies.