Please wait a minute...
工程设计学报
Chinese Journal of Engineering Design  2018, Vol. 25 Issue (1): 118-122    DOI: 10.3785/j.issn.1006-754X.2018.01.016
    
Tension analysis of the drum shearer hydraulic pull rod
CHEN Hong-yue1, LI Yong-hong1, DENG Wen-hao2, YUAN Zhi3, LI En-dong1
1. College of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China;
2. School of Engineering and Applied Science, University of Pennsylvania, Pennsylvania 19104, America;
3. China National Coal Mining Equipment Co., Ltd., Beijing 100011, China
Download: HTML     PDF(2776KB)
Export: BibTeX | EndNote (RIS)      

Abstract  

To study the effect of the shearer drum cutting load to the four hydraulic pull rods, the force model of the four hydraulic pull rods was established under the shearer working load by using the small displacement deformation coordination principal and the statics equilibrium equation, and the load formula was derived. Assuming the pre-tension load of four pull rods was 500 kN, the force model of the pull rod was solved by input the test loading of the drum and the sliding shoes. The test results showed that the deformation average of four pull rods were 3.164 2, 1.934 8, 2.353 8, 2.248 8 mm respectively. The loads of the four pull rods were different in the working process of the shearer, where the largest load of pull rods was on the upper coal wall, the average value was 536 578 N, the lowest load of pull rods was on the goaf, and the average value was 449 991 N. The accuracy of the pull rod force model was verified by the test. The research results provide the convenience to the setting of the pre-tension force of the shearer hydraulic pull rod and the lifetime analysis.

Key words： shearer      hydraulic pull rod      pre-tension force      deformation coordinate principle     
Received: 22 April 2016      Published: 28 February 2018
CLC:  TD421.61  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
CHEN Hong-yue
LI Yong-hong
DENG Wen-hao
YUAN Zhi
LI En-dong
Cite this article:

CHEN Hong-yue, LI Yong-hong, DENG Wen-hao, YUAN Zhi, LI En-dong. Tension analysis of the drum shearer hydraulic pull rod. Chinese Journal of Engineering Design, 2018, 25(1): 118-122.

URL:

https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2018.01.016     OR     https://www.zjujournals.com/gcsjxb/Y2018/V25/I1/118


滚筒采煤机液压拉杆受力分析

为了研究采煤机滚筒截割载荷对其机身上4根液压拉杆负载的影响，采用小位移变形协调原理和静力学平衡方程，建立了采煤机工况载荷下4根液压拉杆的受力模型，推导了拉杆的载荷公式，设定4根拉杆的初始预紧力均为500 kN，以滚筒和滑靴的实验测试载荷为输入，对拉杆受力模型进行了求解。结果表明：4根拉杆的变形量均值分别为3.164 2，1.934 8，2.353 8，2.248 8 mm；采煤机工作过程中4根拉杆载荷相差较大，其中煤壁区上侧拉杆的载荷最大，均值为536 578 N，采空区上侧拉杆的载荷最小，均值为449 991 N。最后通过实验对拉杆受力模型的准确性进行了验证，研究结果为采煤机液压拉杆的预紧力设定及寿命分析提供依据。


关键词： 采煤机,  液压拉杆,  预紧力,  变形协调原理 
[1] 宋泽锋,王维发,王培科.采煤机液压拉杠断裂原因[J].煤矿机械,2010,31(11):109-111. SONG Ze-feng, WANG Wei-fa, WANG Pei-ke. Analysis on fracture reasons of shearer hydraulic rod[J]. Coal Mine Machinery, 2010, 31(11):109-111.
[2] 刘显军,洪军,刘志刚.不同载荷工况下机床主轴预紧力选取的数值分析方法[J].计算机辅助工程,2011,20(2):90-94. LIU Xian-jun, HONG Jun, LIU Zhi-gang. Numerical analysis method on preload selection for machine tool spindle under different load conditions[J]. Computer Aided Engineering, 2011, 20(2):90-94.
[3] 黄奎,莫健华,陈柏金,等.双柱上传动锻造水压机多根拉杆顺序加载预紧力分析[J].中国机械工程,2008,19(7):865-871. HUANG Kui, MO Jian-hua,CHEN Bai-jin, et al. Pretension analysis for sequence loaded tension-bolts of twin columns drive-up assembled frame hydraulic forging press[J]. China Mechanical Engineering, 2008, 19(7):865-871.
[4] 李玲,蔡力钢,郭铁能.不同预紧力下栓接结合部法向等效特性[J].北京工业大学学报,2013,35(9):660-666. LI Ling, CAI Li-gang, GUO Tie-neng. Normal equivalent properpulls of the bolted joints in different reload[J]. Journal of Beijing University of Technology, 2013, 35(9):660-666.
[5] 毛君,姜鹏,谢苗.斜切状态下滚筒采煤机液压拉杠力学分析与寿命预测[J].工程设计学报,2015,22(1):95-100. MAO Jun, JIANG Peng, XIE Miao. Force analysis and life prediction of hydraulic rod on drum shear under the condition of oblique cutting[J]. Chinese Journal of Engineering Design, 2015, 22(1):95-100.
[6] 单东生,贾向东,赵长财.全预紧组合框架液压机的预紧力研究[J].机械工程学报,2015,51(14):150-157. SHAN Dong-sheng, JIA Xiang-dong, ZHAO Chang-cai. Research on pre-tension force of the preloaded composite frame hydraulic press[J]. Journal of Mechanical Engineering, 2015, 51(14):150-157.
[7] 吴生富,聂绍珉,金淼,等.大型锻造液压机全预紧机架的整体性分析[J].燕山大学学报,2006,30(2):143-146. WU Sheng-fu, NIE Shao-min, JIN Miao, et al. Overall working performance analysis of fully pretightened frame[J]. Journal of Yanshan University, 2006, 30(2):143-146.
[8] 何敏,孙智.基于接触理论的高速精密压力机预紧力研究[J].机械工程学报,2010,46(11):165-172. HE Min, SUN Zhi. Research on pre-tightened loads of the high-speed precision press with contact theory[J]. Journal of Mechanical Engineering, 2010, 46(11):165-172.
[9] 金淼,董晓传,邹宗园,等.给定预紧力下组合机架的上限载荷计算[J].中国机械工程,2012,23(20):2476-2581. JIN Miao, DONG Xiao-chuan, ZOU Zong-yan, et al. Calculation of upper limit load for assembled frame hydraulic press under given per-tightened force[J]. China Mechanical Engineering, 2012, 23(20):2476-2581.
[10] 董晓传,金淼,姚阳,等.基于等效梁长法的组合深梁临界预紧力计算模型[J].机械工程学报,2015,51(15):46-52. DONG Xiao-chuan,JIN Miao,YAO Yang, et al. Calculation model of critical preload of prestressed composite deep beam based on the method of equivalent-beam-length[J]. Journal of Mechanical Engineering, 2015, 51(15):46-52.
[11] 董晓传,金淼.预紧组合结构液压机临界预紧力的研究[J].中国机械工程,2014,25(9):1158-1163. DONG Xiao-chuan, JIN Miao. Study on critical preload of prestressed composite structure hydraulic press[J]. China Mechanical Engineering, 2014, 25(9):1158-1163.
[12] 郭宝峰,于琳琳,金淼.预应力组合下横梁临界预紧力影响因素研究[J].中国机械工程,2013,24(19):2567-2572. GUO Bao-feng, YU Lin-lin, JIN Miao. Research on influence factors of critical pretension force in prestressed assembled lower beam[J]. China Mechanical Engineering, 2013, 24(19):2567-2572.
[13] 段志东,苏铁明.组合机架的刚度分析和拉杆预紧力研究[J].机械科学与技术,2009,28(4):450-454. DUAN Zhi-dong, SU Tie-ming. Analysis of the deformation of assembled frames and the pretension of tension bolts[J]. Mechanical Science and Technology for Aerospace Engineering, 2009, 28(4):450-454.
[14] 唐景林,李志明,马丽霞,等.预应力框架大型液压机拉杆预紧力非缓解测量研究[J].机械工程学报,2010,46(22):70-74. TANG Jing-lin, LI Zhi-ming, MA Li-xia, et al.Research on non-release measurement of pretension force of the tie rod in pre-stressed frame hydraulic press[J]. Journal of Mechanical Engineering, 2010, 46(22):70-74.
[15] 李艳聪,张连洪,刘占稳,等.刚度和质量驱动的预紧组合框架式液压机多目标优化设计[J].机械工程学报,2010,46(1):140-146. LI Yan-cong, ZHANG Lian-hong, LIU Zhan-wen, et al. Multi-objective optimization design of heavy forge framed hydraulic press driven by stiffness and mass[J]. Journal of Mechanical Engineering, 2010, 46(1):140-146.
[16] 李艳聪,张连洪,喻宏波,等.液压机主机有限元分析模型建立及实验验证[J].机械科学与技术,2012,31(2):229-233. LI Yan-cong, ZHANG Lian-hong, YU Hong-bo, et al. Finite element analysis of hydraulic press and experimental verification[J]. Mechanical Science and Technology for Aerospace Engineering, 2012, 31(2):229-233.
[17] 单祖辉.材料力学[M].北京:高等教育出版社,2010:35-38. SHAN Zu-hui. Mechanics of Materials[M]. Beijing:Higher Education Press, 2010:35-38.
[18] 徐芝纶.弹性力学[M]. 北京:高等教育出版社,2013:15-19. XU Zhi-lun. Elastic theory[M]. Beijing:Higher Education Press, 2013:15-19.
[1] BAI Yang-xi, CHEN Hong-yue, CHEN Hong-yan, WANG Xin, LI Jian-gang. Vibration analysis and experimental verification of shearer sliding shoes based on drum load[J]. Chinese Journal of Engineering Design, 2021, 28(3): 358-366.
[2] BAI Yang-xi, CHEN Hong-yue, CHEN Hong-yan, WANG Xin. Analysis and test verification of transverse vibration of shearer rocker arm under multiple constraints[J]. Chinese Journal of Engineering Design, 2020, 27(6): 707-712.
[3] QIAO Chun-guang, WANG Xue-wen, XIE Jia-cheng, YANG Zhao-jian. Vertical plane shape calculation method of scraper conveyor based on running track of shearer[J]. Chinese Journal of Engineering Design, 2018, 25(5): 495-502.
[4] ZHANG Qiang, WU Ze-guang, CHU Viet Dung, WU Ze-yang, LI Li-ying. Research on mechanical detecting system of hydraulic rod on shearer[J]. Chinese Journal of Engineering Design, 2017, 24(5): 595-600.
[5] ZHANG Qiang, WANG Hai-jian, WU Ze-guang, LIU Zhi-heng, MAO Jun. Research of coal-rock cutting mechanical characteristic and test system for drum shearer[J]. Chinese Journal of Engineering Design, 2017, 24(4): 459-464,479.
[6] LI Qiang, MAO Jun, ZHANG Ming-yu, XIE Miao. Three-axis force testing scheme design and experimental study of shearer cutter[J]. Chinese Journal of Engineering Design, 2016, 23(5): 506-512.
[7] CHEN Hong-yue, LIU Lie-bei, MAO Jun, SONG Qiu-shuang, YUAN Zhi. The analysis of the shearer dynamic feature in the coupling relation between the the motivation and the drum vibration[J]. Chinese Journal of Engineering Design, 2016, 23(3): 228-234.
[8] MAO Jun, PAN De-wen, LI Qiang, XIE Miao, YOU Xu-ping. Analysis of mechanical properties of shearer drum in the process of oblique feed[J]. Chinese Journal of Engineering Design, 2015, 22(6): 613-618.
[9] LIU Chun-sheng， TIAN Cao. The mechanical properties and design of shearer hydraulic adjustable posture traction mechanism[J]. Chinese Journal of Engineering Design, 2015, 22(3): 243-249.
[10] MAO Jun， JIANG Peng， XIE Miao. Force analysis and life prediction of hydraulic rod on drum shearer under the condition of oblique cutting[J]. Chinese Journal of Engineering Design, 2015, 22(1): 95-100.
[11] LI Xiao-huo，ZHOU Yang，LIU Shi-jun ，DONG Wei-song，GUO Na，YANG Jie. Research on parametric design system for pick arrangement on drum shearer[J]. Chinese Journal of Engineering Design, 2014, 21(6): 550-554.
[12] ZHAO Li-juan，LI Minghao. Analysis of the shearer´s rocker arm shell based on the multi-field coupling[J]. Chinese Journal of Engineering Design, 2014, 21(3): 235-239.
[13] ZHOU Jia-Wei, LIU Yu, LIU Song-Yong, DU Chang-Long. Characteristic analysis of dynamic meshing for shearer walking mechanism[J]. Chinese Journal of Engineering Design, 2013, 20(3): 230-235.
[14] ZHAO Cun-You, CHEN Guo-Jing, ZHU Li. Energy-saving program design of shearer cutting drum based on ARIZ[J]. Chinese Journal of Engineering Design, 2011, 18(3): 159-166.
[15] ZHAO Li-Juan, WANG Cheng-Yun. Modeling and dynamic simulation of shearer cutting unit[J]. Chinese Journal of Engineering Design, 2010, 17(2): 119-123.