JCIPRNET
Interference protection device and method for hydraulic support and cutting part of shearer
Disclosed is an interference protection device and method for a hydraulic support and a cutting part of a shearer. The device includes: a plurality of dust-proof cases evenly and fixedly provided on a surface of one side of a hauling part of the shearer that faces away from a coal wall, and a dust-proof housing fixed on the hydraulic support. A first ultrasonic transducer and a flash lamp are fixedly provided in each dust-proof case, and a second ultrasonic transducer, a receiver, and a data processing module are fixedly provided in the dust-proof housing. The data processing module is electrically connected to the second ultrasonic transducer and the receiver separately, the first ultrasonic transducers and the flash lamps are all electrically connected to an external single-chip microcomputer, and the data processing module is electrically connected to a hydraulic support control computer. The present invention obtains a distance from the shearer to the hydraulic support by calculation from a difference between time points at which the second ultrasonic transducer and the receiver on the hydraulic support respectively receive an ultrasonic signal and an optical signal, and thus timely controls a guard plate to retract, thereby achieving the advantages of low cost, high applicability and high reliability.
China University of Mining and Technology XUZHOU GOLDFLUID HYDRAULIC TECHNOLOGY DEVELOPMENT CO., LTD.
E E E B E
E21D E21C E21F B23D E21C
inventional inventional inventional inventional inventional
Bowen Chao Xuliang Yue Xiaoyu Hongya Zhongbin Honglin
Liu Tan Lu Wu Li Zhou Wang Wu