瓦斯钻机自动前动力头设计  

Design of Automatically Former Power Head of Gas Drilling Rig

作　　者：武斌波 郭文亮[1,2] 冯光 辛宇鹏[1,2] WU Binbo;GUO Wenliang;FENG Guang;XIN Yupeng(College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;Key Labor~aory of Precision Machining, Taiyuan 030024, China)

机构地区：[1]太原理工大学机械工程学院,山西太原030024 [2]精密加工山西省重点实验室,山西太原030024

出　　处：《煤矿安全》2018年第5期110-113,共4页Safety in Coal Mines

基　　金：山西省重点研发计划资助项目(201603D421036);山西省归国留学基金资助项目(2013-040)

摘　　要：针对当前钻机频繁启、停导致煤孔壁的坍塌,钻杆损坏、丢失,钻孔无法使用等问题,提出一种新型智能化瓦斯钻机概念;介绍了瓦斯钻机前动力头设计,核心装置为自动夹紧松开机械式卡盘,依靠液压马达作为动力,在不停钻的情况下完成自动夹紧、松开钻具工作。重点说明了该卡盘的设计方案,自动夹紧、松开钻具工作原理,并详细研究其动态夹紧力;在Simulink搭建数学模型,分析结果表明摩擦系数对卡盘夹紧力影响较大,减小摩擦系数对有助于增大夹紧力。For the problems that frequent start-stop of current drilling rig leads to safety accidents, such as collapse of hole wall of the coal, damage and loss of pipes, unavailable bore and so on, this paper introduced the former power head device of the gas drilling rig, the core device was the mechanical chuck which could rely on the hydraulic motor to automatically clamp and loosen rig without stopping drilling. This paper especially focuses on the design scheme, working process of clamping and loosening, and studies dynamic clamping force in detail. The results of mathematical analysis in Simulink show that the friction coefficient has a great influence on the clamping force, and reducing friction coefficient is helpful to increase clamping force.

关 键 词：钻机 动力头结设计 机械式卡盘 SIMULINK 夹紧力 

分 类 号：TD41[矿业工程—矿山机电]