The utility model discloses a
coal mining
machine roller wear monitoring and early warning device, which belongs to the technical field of
coal mining machinery monitoring, and comprises a pair of monitoring semi-rings, a plurality of non-contact displacement sensors and a control module, the two side ends of each monitoring semi-ring are fixedly provided with mounting components, the pair of monitoring semi-rings is assembled into a monitoring ring through the mounting components, and the non-contact displacement sensors are arranged on the monitoring ring. A plurality of uniformly distributed monitoring holes are formed in the inner end of the monitoring semi-ring, the control module comprises a power supply and a
microprocessor, the power supply is fixedly installed at the outer end of the monitoring semi-ring, the power supply and the non-contact displacement sensor are electrically connected with the
microprocessor, and a plurality of sound-light alarm lamps are further installed at the outer end of the monitoring semi-ring. By adopting the non-contact displacement sensor and the
laser measurement technology, the
radial displacement change of the surface of the roller caused by abrasion can be monitored in real time, and
data processing and abrasion degree calculation are performed through the
microprocessor, so that the measurement accuracy and reliability are improved, and the
measurement precision is improved. And errors caused by human factors in a traditional monitoring method can be avoided.