采煤机截割部齿轮传动系统可靠性研究  

Research on the Reliability of the Gear System in Shearer Cutting Transmission Section

作　　者：盛连超 陈家俊 姜耸 李威[2] SHENG Lian-chao;CHEN Jia-jun;JIANG Song;LI Wei(School of Mechatronic Engineering,Jiangsu Normal University,Jiangsu Xuzhou 221116,China;School of Mechatronic Engineering,China University of Mining and Technology,Jiangsu Xuzhou 221116,China)

机构地区：[1]江苏师范大学机电工程学院,江苏徐州221116 [2]中国矿业大学机电工程学院,江苏徐州221116

出　　处：《机械设计与制造》2024年第6期75-80,共6页Machinery Design & Manufacture

基　　金：国家自然基金面上项目(52005232、51775543)。

摘　　要：针对采煤机截割负载易引起齿轮传动系统失效的问题,首先,充分考虑煤层中矸石参数的不确定性,建立末端负载不确定性模型,模拟截割负载;其次,基于集中质量法,构建负载影响下永磁电机驱动的采煤机截割部齿轮传动系统动力学模型,探究其在服役过程中的动态行为;最后,基于应力-强度干涉理论,建立系统模型,确定齿轮服役周期。研究结果表明:齿轮传动系统中主动齿轮可靠服役时间更短,相同条件下,按失效相关原则分析的可靠性则更加合理,该研究可以为采煤机截割部的进一步优化设计提供参考。Aiming at the problem that the cutting load of the shearer is easy to cause the failure of the gear transmission system,firstly,fully considering the uncertainty of coal gangue parameters,the uncertainty model of terminal load is established.Sec-ondly,based on the concentrated mass method,the dynamic model of the shearer cutting drive system driven by a permanent magnet motor under the influence of load is constructed.Finally,based on the stress-strength interference theory,the system stress-mild interference model is established,and the service life of the gear transmission system is predicted.The results of the study show that the gears in the high-speed zone have a shorter service life.Under the same conditions,the structure designed ac-cording to the principle of independence will be more redundant.The reliability analysis based on the failure-related principles is more reasonable.It can provide a reference for the further optimization design of the shearer cutting drive system.

关 键 词：可靠性 动态特性 齿轮动力学 采煤机 截割负载 

分 类 号：TH16[机械工程—机械制造及自动化] TH113