Dynamic behaviors of the electromechanical transmission system of a coal shearer in transient regimes

PDF(1289 KB)

Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (1) : 142-149.

YI Yuan-yuan，QIN Da-tong，LIU Chang-zhao，JIA Han-jie

Author information +

History +

Abstract

To investigate the dynamic behavior of the transmission system of a coal shearer under different working conditions, a cutting-haulage coupled model was established by using MATLAB/Simulink, in which the electromagnetic characteristics of the driving motors, variation of the cutting resistance of the coal seam, torsional vibration of the transmission system, time-varying meshing stiffness and tooth backlash were considered. Then, the electromechanical dynamic behaviors of the system were simulated in the regimes of run-up, drum load sudden-change and locked-rotor. Finally, a coal-cutting experiment was conducted on a realistic shearer to verify the simulation results. The results show that in the regimes of run-up and locked-rotor, strong interactions occur between the motor and the transmission system, which causes nonlinear impact phenomena including the gear contact lose and clonk. In the design of the transmission system of a coal shearer, a higher application factor should be adopted for the cutting unit than the haulage unit and a higher safety factor should be adopted for the high-speed stage gears than the low-speed stage gears.

Key words

coal shearer / transient regime / electromechanical transmission system / dynamic behavior

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

YI Yuan-yuan，QIN Da-tong，LIU Chang-zhao，JIA Han-jie. Dynamic behaviors of the electromechanical transmission system of a coal shearer in transient regimes[J]. Journal of Vibration and Shock, 2018, 37(1): 142-149

References

[1] 周久华，米林. 采煤机摇臂齿轮箱故障与可靠性分析[J]. 神华科技，2011, 9(3):39-41.
Zhou Jiu-hua, Mi Lin. Ranging arm gearbox fault analysis of shearer and its reliability analysis [J]. Shenghua Technology, 2011, 9(3): 39-41.
[2] 宋相坤，胡俊，朱信平. 复杂地质条件下大功率采煤机行走系统常见故障与对策[J]. 煤矿机械，2014, 35(11): 288-290.
Song Xiang-kun, Hu Jun, Zhu Xin-ping. Common faults and measures of high-power shearers running system under complex geological condition[J]. Coal Mine Machinery, 2014, 35(11): 288-290.
[3] 刘长钊，秦大同，廖映华. 采煤机截割部机电传动系统动力学特性分析[J]. 机械工程学报，2016, 52(7): 14-22.
Liu Chang-zhao, Qin Da-tong, Liao Ying-hua. Dynamic analysis for the cutting electromechanical transmission system in the long-wall shearer[J]. Journal of Mechanical Engineering, 2016, 52(7): 14-22.
[4] 杨阳，邹佳航，秦大同，等. 采煤机高可靠性机电液短程截割传动系统[J]. 机械工程学报，2016, 52(4): 111-119.
Yang Yang, Zou Jia-hang, Qin Da-tong, et al. High reliability electromechanical-hydraulic short-range cutting transmission system of shearer[J]. Journal of Mechanical Engineering, 2016, 52(4): 111-119.
[5] 周笛，张旭方，杨周，等. 采煤机牵引部传动系统动态可靠性分析[J]. 煤炭学报，2015, 40(11): 2546-2551.
Zhou Di, Zhang Xu-fang, Yang Zhou, et al. Vibration reliability analysis on tractive transmission system of shearer[J]. Journal of China Coal Society, 2015, 40(11): 2546-2551.
[6] 张业林. 采煤机摇臂传动系统动力学及传感器优化布置研究[D]. 徐州：中国矿业大学，2014: 26-46.
Zhang Ye-lin. Research on dynamics and optimal sensor placement of shearer ranging arm[D]. Xuzhou: China University of Mining and Technology, 2014: 26-46.
[7] 赵丽娟，田震. 薄煤层采煤机振动特性研究[J]. 振动与冲击，2015, 34(1): 195-199.
Zhao Li-juan, Tian Zhen. Vibration characteristics of thin coal seam shearer[J]. Journal of Vibration and Shock, 2015, 34(1): 195-199.
[8] Khabou M T, Bouchaala N, Chaari F, et al. Study of a spur gear dynamic behavior in transient regime[J]. Mechanical Systems and Signal Processing, 2011, 25(8): 3089-3101.
[9] Liu C, Qin D, Lim T C, et al. Dynamic characteristics of the herringbone planetary gear set during the variable speed process[J]. Journal of Sound and Vibration, 2014, 333(24): 6498-6515.
[10] 韩如成，潘峰，智泽英. 直接转矩控制理论及应用[M]. 北京：电子工业出版社，2012:31-35.
Han Ru-cheng, Pan Feng, Zhi Ze-ying. The direct torque control theory and application[M]. Beijing: Publishing House of Electronics Industry, 2012: 31-35.
[11] 刘春生，于信伟，任昌玉. 滚筒式采煤机工作机构[M]. 哈尔滨：哈尔滨工程大学出版社，2010: 13-20.
Liu Chun-sheng, Yu Xin-wei, Ren Chang-yu. Operating mechanism of drum shear[M]. Harbin: Harbin Engineering University Press, 2010: 13-20.
[12] 王丹玉，王启佳，孙维. 采煤机牵引速度的分析与选择[J]. 煤矿机械，2012, 33(10): 195-197.
Wang Dan-yu, Wang Qi-jia, Sun Wei. Analysis and selection of shearer haulage speed[J]. Coal Mine Machinery, 2012, 33(10): 195-197.
[13] Liang X, Zuo M J, Patel T H. Evaluating the time-varying mesh stiffness of a planetary gear set using the potential energy method[J]. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2014, 228(3): 535-547.
[14] Kahraman A, Singh R. Interactions between time-varying mesh stiffness and clearance non-linearities geared system[J]. Journal of Sound and Vibration, 1991, 146(1): 135-156.
[15] Liang X, Zuo M J, Hoseini M R. Vibration signal modeling of a planetary gear set for tooth crack detection[J]. Engineering Failure Analysis, 2015, 48(11): 185-200.
[16] Guo Y, Parker R G. Analytical determination of back-side contact gear mesh stiffness[J]. Mechanism & Machine Theory, 2014, 78(4): 263-271.
[17] 张策. 机械动力学[M]. 北京：高等教育出版社，2008: 300-340.
Zhang Ce. Machinery dynamics[M]. Beijing: Higher Education Press, 2008: 300-340.
[18] 闻邦椿，顾家柳，夏松波，等. 高等转子动力学[M]. 北京：机械工业出版社，1999: 228-242.
Wen Bang-chun, Gu Jia-liu, Xia Song-bo, et al. Advanced rotor dynamics[M]. Beijing: Machinery Industry Press, 1999: 228-242.
[19] 续艳珍，王建民. 异步电动机起动过程中转轴上的扭矩振荡现象研究[J]. 中小型电机，2005, 32(5): 10-13.
Xu Yan-zhen, Wang Jian-min. Study on torsional torque oscillation in starting process of induction motor[J]. S&M Electric Machines, 2005, 32(5): 10-13.
[20] 顾绳谷. 电机及拖动基础[M]. 北京：机械工业出版社，2007:111-115.
Gu Sheng-gu. Fundamentals of electrical machines and drives[M]. Beijing: Machinery Industry Press, 2007:111-115.
[21] 张强，王海舰，毛君，等. 刮板输送机系统机电耦合模型及仿真分析[J]. 中国机械工程，2015, 26(23): 3134-3139.
Zhang Qiang, Wang Hai-jian, Mao Jun, et al. Electromechanical coupling modeling and simulation analysis of scraper conveyor system[J]. China Mechanical Engineering, 2015, 26(23): 3134-3139.
[22] 闻邦椿. 机械设计手册[M]. 北京：机械工业出版社，2014:47-48.
Wen Bang-chun. Machine design handbook[M]. Beijing: Machinery Industry Press, 2014:47-48.
[23] Wei J, Lv C, Sun W, et al. A study on optimum design method of gear transmission system for wind turbine[J]. International Journal of Precision Engineering and Manufacturing, 2013, 14(5): 767-778.