径向活塞式液压卡盘动态特性仿真与试验  

Simulation and experimental study on dynamic characteristics of radial piston hydraulic chuck

作　　者：梁春苗[1,2] 姚宁平 姚亚峰 李坤[2] 彭涛 宋海涛 LIANG Chunmiao;YAO Ningping;YAO Yafeng;LI Kun;PENG Tao;SONG Haitao(China Coal Research Institute,Beijing 100013,China;Xi’an Research Institute Co.Ltd.,China Coal Technology and Engineering Group Corp.,Xi’an 710077,China)

机构地区：[1]煤炭科学研究总院,北京100013 [2]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤田地质与勘探》2020年第5期246-253,共8页Coal Geology & Exploration

基　　金：国家科技重大专项任务(2016ZX05045-003-002);国家重点研发计划课题(2018YFC0808005)。

摘　　要：卡盘是煤矿坑道钻机重要部件,卡盘的性能直接影响钻进的效率和质量。针对胶筒液压卡盘存在的问题,研究一种新型径向活塞式液压卡盘,通过分析径向活塞卡盘夹紧和松开系统的结构与工作原理,运用变质量液压学原理和动力学理论建立其运动过程的数学模型,并在AMESim环境下,进行了卡盘液压控制与机械系统的动力学协同仿真。在所建立的多机耦合模型基础上,详细分析了夹紧系统的响应和夹紧力特性,并搭建测试试验台进行了试验验证。研究结果表明:径向卡盘关键部件碟簧对系统特性的影响较大,通过优化碟簧性能参数,径向卡盘夹紧时间为0.325 s,松开时间为0.275 s,与胶筒卡盘夹紧时间0.325 s相当,与松开时间0.300 s接近,可与在用的胶筒卡盘互换,满足钻机功能需求,仿真结果与试验结果一致表明径向卡盘模型准确可信,为新型径向活塞卡盘系列化设计及改进提供了理论依据。The chuck is an important part of the coal mine tunnel drilling rig.The performance of the chuck directly affects the efficiency and quality of drilling.Aiming at the problems of the rubber cylinder hydraulic chuck.a new radial piston hydraulic chuck is studied.The objective of this paper is to devise a new radial piston hydraulic chuck instead of rubber-sleeve hydraulic chuck.Then,the motion mathematical model of radial piston hydraulic chuck was established based on the radial piston chuck clamping and loosening of system structure and working principle.At the same time,a dynamic co-simulation of chuck hydraulic control and mechanical system was made under the AMESim condition.According to the multi machine coupling model,the response and the clamping force characteristics of the clamping system were analyzed in detail,and the test bench was set up for verification.The research results show that the component saucer reed features of the radial chuck key have bigger influence on the system characteristics.By optimizing the performance parameters of the disc spring,a set of key parameters is obtained.The clamping time of radial chuck is 0.325 s,similar to the clamping time of rubber-sleeve chuck 0.325 s,and the release time is 0.275 s,close to the release time of rubber-sleeve chuck 0.300 s.In other words,it can be interchangeable with the rubber sleeve hydraulic chuck to meet the functional requirements of the drilling rig.Beside,the simulation results are consistent with the experimental results.This proves the radial chuck model is accurate.The results of this study will provide theoretical basis for the series design and improvement of new radial piston chuck.

关 键 词：径向活塞卡盘 响应特性 夹紧力特性 数学模型 AMESIM 

分 类 号：P5[天文地球—地质学] TD82[矿业工程—煤矿开采]