Results 11 to 20 of about 11,147 (263)

Research on shearer performance degradation evaluation and applicatio

open access: yesGong-kuang zidonghua, 2020
Accurate identification of the wear and failure of shearer components can provide the necessary support for the prevention and early warning of shearer failures and related accidents, and shearer performance degradation evaluation is an effective way to ...
ZHAI Wenrui   +3 more
doaj   +1 more source

High-Precision Positioning Method of Coal Shearer in the Underground Environment Based on Rail Kinematics Model

open access: yesIEEE Access, 2021
The high-precision positioning of the shearer is the key technology to realize the automation of longwall mining. Since mine is a Global Position System (GPS)-denied environment, highly autonomous Inertial Navigation System (INS)/odometer integrated ...
Xiaowei Xu   +5 more
doaj   +1 more source

Design of drive and control system of 4-quadrant converter for traction shearer

open access: yesGong-kuang zidonghua, 2016
The paper designed a new drive and control system of 4-quadrant converter for traction shearer according to index requirements of 4-quadrant converter of shearer, and introduced design of hardware circuit and software implementation of the system.
DENG Yonghong, CAO Haokun, ZHANG Quanzhu
doaj   +1 more source

Design of networked remote control testing system for shearer

open access: yesGong-kuang zidonghua, 2014
Due to high cost and difficulty to research remote control system for shearer on actual working face, the paper proposed a design scheme of networked remote control testing system for shearer, researched internal control structure of shearer met testing ...
LIN Fuyan, LI Jun, HAN Yunlong
doaj   +1 more source

Data-Driven Cooperative Control Model of Shearer-Scraper Conveyor Based on Rough Set Theory

open access: yesFrontiers in Energy Research, 2022
The cooperative control of shearer and scraper conveyors is the prerequisite for the realization of intelligent comprehensive mining equipment and unmanned comprehensive mining workings. However, because of the harsh working face environment, the complex
Shuanfeng Zhao   +8 more
doaj   +1 more source

Research status and prospect of shearer positioning technology on fully mechanized coal mining face

open access: yesGong-kuang zidonghua, 2017
On the basis of development status of shearer positioning technology on fully mechanized coal mining face at home and abroad, characteristics of conventional shearer positioning technology, shearer positioning technology based on strapdown inertial ...
XIA Ting, LI Wei, WANG Chao, LI Yuche
doaj   +1 more source

Cooperative control technology of shear and hydraulic support on fully-mechanized coal mining face

open access: yesGong-kuang zidonghua, 2020
Aiming at low cooperative control efficiency of shearer and hydraulic support on fully-mechanized coal mining face, a cooperative control technology of shearer and hydraulic support on fully-mechanized coal mining face was proposed based on technologies ...
LIU Qing   +3 more
doaj   +1 more source

Research on whole life cycle service system of shearer

open access: yesGong-kuang zidonghua, 2018
In view of problems that current shearer life cycle management has low real-time performance and low accuracy of information collection, and unable to uniquely identify shearer, a design scheme of RFID-based whole life cycle service system of shearer was
CAO Xiangang   +5 more
doaj   +1 more source

Shearer positioning method based on non-holonomic constraints

open access: yesGong-kuang zidonghua, 2022
At present, the shearer positioning method is based on the combination of the inertial navigation system and odometer. The method directly uses the output of the odometer to correct the shearer forward speed calculated by the inertial navigation system ...
SONG Danyang   +5 more
doaj   +1 more source

Cable traction tension overload protection device of shearer

open access: yesGong-kuang zidonghua, 2017
In view of problem of cable and cable traction clamp damaged by tension overloading of cable traction of shearer, a cable traction tension overload protection device of shearer was designed.
LI Yuhua   +3 more
doaj   +1 more source

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