[1]赵丽娟,樊志海,周文.煤岩破落过程中螺旋滚筒的可靠性研究[J].中国安全生产科学技术,2017,13(7):100-105.[doi:10.11731/j.issn.1673-193x.2017.07.016]
ZHAO Lijuan,FAN Zhihai,ZHOU Wenchao.Study on reliability of spiral drum in the breaking and falling process of coal and rock[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(7):100-105.[doi:10.11731/j.issn.1673-193x.2017.07.016]
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煤岩破落过程中螺旋滚筒的可靠性研究
ZHAO Lijuan,FAN Zhihai,ZHOU Wenchao.Study on reliability of spiral drum in the breaking and falling process of coal and rock[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(7):100-105.[doi:10.11731/j.issn.1673-193x.2017.07.016]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 13
- 期数:
- 2017年7期
- 页码:
- 100-105
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2017-07-31
文章信息/Info
- Title:
- Study on reliability of spiral drum in the breaking and falling process of coal and rock
- 文章编号:
- 1673-193X(2017)-07-0100-06
- Keywords:
- spiral drum; coal and rock breaking and falling; discrete element; traction speed; reliability
- 分类号:
- TD421.5
- 文献标志码:
- A
- 摘要:
- 为了研究采煤机螺旋滚筒的可靠性，以散体力学理论与刚柔耦合多体系统动力学理论为基础，利用EDEM软件，建立了采煤机截割部与煤壁耦合的离散元仿真模型，分析了牵引速度与装煤率之间的关系，提取了煤岩破落过程中螺旋滚筒的工作载荷并验证了其可靠性，通过ADAMS动力学仿真分析，并找出了滚筒在工作过程中的应力分布规律。研究表明：滚筒应力随着牵引速度的增大而增大，但装煤率出现先增大后减小的规律，在保证采煤机可靠性的前提下，牵引速度控制在8 m/min左右有较高的装煤率。
- Abstract:
- In order to study the reliability of spiral drum on the shearer, a discrete element simulation model coupling the cutting unit of shearer and coal wall was established by using EDEM software based on the theory of granular material mechanics and the theory of rigid-flexible coupling multi-body system dynamics. The relationship between traction speed and coal loading efficiency was analyzed, then the working load of spiral drum in the breaking and falling process of coal and rock was extracted, and its reliability was verified. The ADAMS dynamics simulation analysis was carried out, and the stress distribution laws of drum in the working process was obtained. The results showed that the stress of drum increased with the increase of traction speed, but the coal loading efficiency increased first and then decreased. Under the premise of ensuring the reliability of shearer, the traction speed should be controlled about 8 m/min for a higher coal loading efficiency.
参考文献/References:
［1］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,2010：4-21.
［2］刘送永,杜长龙,崔新霞,等.采煤机滚筒运动参数的分析研究［J］.煤炭科学技术,2008,36(8):62-64.
LIU Songyong, DU Changlong, CUI Xinxia, et al. Analysis and research on cutting drum movement parameters of coal drum shearer［J］. Coal Science and Technology, 2008,36(8):62-64.
［3］李晓豁，高健.采煤机运动参数对块煤产量的影响［J］.煤炭学报，2009,34(9):1268-1270.
LI Xiaohuo, GAO Jian. Effect of kinematics parameters of shearer on lump coal production［J］. Journal of China Coal Society, 2009,34(9):1268-1270.
［4］Dolipski M, Jaszczuk M .Computer-aided determination of dynamic loads in a longwall shearer's cutting system［J］. Computer Applications in the Minerals Industries, 2001, (4):413-416.
［5］赵丽娟,马强,刘旭南,等.新型薄煤层采煤机装煤量与可靠性研究［J］.机械设计,2014(7):97-101.
ZHAO Lijuan, MA Qiang, LIU Xunan, et al. Study on the loading capacity and reliability of a new type of thin seam coal mining machine ［J］. Mechanical Design, 2014(7): 97-101.
［6］高魁东.薄煤层滚筒采煤机装煤性能研究［D］.徐州:中国矿业大学,2014:1-15.
［7］秦大同,王镇,胡明辉,等. 基于多目标优化的采煤机滚筒最优运动参数的动态匹配［J］.煤炭学报,2015(S2):532-539.
QIN Datong，WANG Zhen，HU Minghui， et al. Dynamic matching of optimal drum movement parameters of shearer based on multi-objective optimization［J］. Journal of China Coal Society,2015(S2):532-539.
［8］雷强.基于离散元的物料破碎机理研究［D］.赣州：江西理工大学，2012.
［9］Ferellec J.F, Mc Dowell G.R.A method to model realistic particle shape and inertia in DEM［J］.Granular Matter,2010(12):459-467.
［10］王国强，郝万军，王继新. 离散单元法及其在EDEM上的实践［M］.西安：西北工业大学出版社,2010.
［11］赵丽娟,田震,刘旭南. 薄煤层采煤机滚筒载荷特性仿真分析［J］.系统仿真学报,2015(12):3102-3108.
ZHAO Lijuan, TIAN Zhen, LIU Xunan. Simulation and analysis of the load characteristics of the thin coal seam shearer drum［J］.Journal of System Simulation,2015(12)：3102-3108.
［12］马联伟. 薄煤层采煤机可靠性与疲劳寿命研究［D］.葫芦岛：辽宁工程技术大学,2013：30-45.
［13］赵丽娟,刘旭南,刘鹏. 截齿排列方式对采煤机工作性能的影响［J］. 机械科学与技术,2014(12):1838-1844.
ZHAO Lijuan, LIU Xunan, LIU Peng. Picks arrangement mode’s influence on shearer’s working performance［J］. Mechanical Science and Technology for Aerospace Engineering,2014(12):1838-1844.
［14］赵丽娟,李明昊,范佳艺. 基于VP-MFC的采煤机摇臂系统齿轮性能退化可靠性分析［J］. 中国安全生产科学技术,2016,12(9):92-97.
ZHAO Lijuan, LI Minghao, FAN Jiayi. Reliability analysis of shearer rocker gear system performance based on VP-MFC［J］. Chinese Degradation of Safety Science and Technology, 2016,12(9): 92-97.
［15］张强,王海舰,李立莹,等. 采煤机多参数耦合匹配优化智能降尘控制研究［J］. 中国安全科学学报,2016(11):139-144.
ZHANG Qiang, WANG Haijian, LI Liying，et al. Research on intelligent multi parameter coupling matching optimization intelligent dust control ［J］. Proceedings of the Chinese Safety Science, 2016(11)：139-144.
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备注/Memo
- 备注/Memo:
- 国家自然科学基金项目(51674134)
