• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2016, Vol. 52 ›› Issue (4): 111-119.doi: 10.3901/JME.2016.04.111

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High Reliability Electromechanical-hydraulic Short-range Cutting Transmission System of Shearer

YANG Yang, ZOU Jiahang, QIN Datong, YUAN Aihui   

  1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044
  • Online:2016-02-15 Published:2016-02-15

Abstract: The cutting unit is the most important component of the shearer, but it is also the part that produces failure easily. Aim at solving the shearer’s low reliability and poor adaptability, a new kind of high reliability electromechanical-hydraulic short-range cutting transmission system is designed. The system can realize buffering and damping with the load’s mutation and the roller speed can be controlled with the variation of coal seam. The mathematical models of the cutting motor, the pump control motor system and the accumulator are established. The simulation model of MG300 shearer cutting transmission system is established based on AMESim software. The efficiency and the performance of speed regulation and coping with the load’s mutation are analyzed by the simulation. The results show that the system can not only regulate roller speed well but also process the buffering and damping function and keep high transmission efficiency in the typical working conditions. Consequently, the system can improve shearer’s reliability and adaptability. The simulation results illustrate the effectiveness and feasibility of the program which lays the foundation for the design and optimization of the cutting transmission system of shearer.

Key words: buffering and damping, cutting transmission system, roller speed regulation, shearer

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