China University of Mining and Technology (CUMT)

Xuzhou Goldfluid Hydraulic Technology Development Co., Ltd.

Honglin Wu

Zhongbin Wang

Chao Tan

Yue Wu

Xuliang Lu

Bowen Liu

Hongya Zhou

Xiaoyu Li

Peng Liu

Lei Si

Xinhua Liu

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.

Interference protection device and method for hydraulic support and cutting part of shearer

A system and method for remotely locating a communication error support for hydraulic supports. The system includes a control panel, a support controller, a data converter, and two support drivers of the same type. Each support driver has two bus interfaces. The control panel transmits a control command to the data converter in a form of a WiFi signal. The data converter converts the WiFi signal into a message signal and transmits the message signal to the support controller. The support controller transmits the control command to the two support drivers, respectively. The support drivers transmit the command through CANH twisted pairs and CANL twisted pairs. When a bus for transmitting the command of a certain node has an error, the support controller calculates the fault node according to a formula and feeds back the fault node onto the control panel.

System and method for remotely locating communication error support for hydraulic supports

Growing community of inventors

Jiangsu, China

Honglin Wu