变载工况下钻机动力头传动系统动态特性

王清峰;朱才朝 史春宝 龙威

振动与冲击 ›› 2014, Vol. 33 ›› Issue (17) : 18-23.

PDF(2124 KB)
PDF(2124 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (17) : 18-23.
论文

变载工况下钻机动力头传动系统动态特性

  • 王清峰1,2 朱才朝1 史春宝2 龙威2
作者信息 +

Dynamic Characteristics of Drilling Rig's Driving Head Transmission SystemUnder Verying Working Environment

  • WANG Qing-feng1,2 ZHU Cai-chao1 SHI Chun-bao2 LONG Wei2
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摘要

基于弹性力学和接触力学的有关理论,对煤矿瓦斯抽放水平定向长钻孔千米钻机动力头的聚晶金刚石复合片钻头(PDC钻头)压入切削岩石时的接触特性进行分析,通过计算机编程仿真得到钻机在实际运行过程中的负载并作为钻机动力头齿轮传动系统的外部激励;综合考虑钻机动力头齿轮传动系统中各个齿轮副的时变啮合刚度,各个齿轮副综合啮合误差等引起的内部激励;并考虑各个滚动轴承的支撑刚度以及轴的扭转刚度;采用集中参数法建立钻机动力头齿轮传动系统的耦合动力学模型,并基于数值分析方法求解得到钻机动力头切削砂岩时各个齿轮构件和轴承构件的振动速度响应、振动位移响应以及动态啮合力,对动力头齿轮传动系统的动态响应进行研究,研究结果为钻机动力头传动系统的动态性能优化奠定基础。

Abstract

The drilling rig's driving head transmission system is studied based on the method of gear system dynamics. The contact force of cutting rock by PDC bit is studied based on the theory of elastic mechanics and contact mechanics, and time-varying input torque of gear transmission system of drilling rig's driving head, caused by Verying Working Environment is then obtained. A coupling dynamic model of the gear transmission system is built using lumped-parameter method, the model includes the time-vary mesh stiffness of gear pair, the stiffness of rolling element bearing, the meshing error and etc. Then dynamic differential equation is built on that basis, and vibration responses, dynamic meshing forces of gears as well as bearing forces of the gear transmission system are obtained using numerical method. Research results lay a foundation for dynamic performance optimization and reliability design of the gear transmission system of drilling rig's driving head.

关键词

变工况 / PDC钻头 / 动力头 / 齿轮传动 / 动态特性

Key words

Verying working environment / PDC bit / Driving head / Gear transmission / Dynamic characteristic

引用本文

导出引用
王清峰;朱才朝 史春宝 龙威. 变载工况下钻机动力头传动系统动态特性[J]. 振动与冲击, 2014, 33(17): 18-23
WANG Qing-feng;ZHU Cai-chao SHI Chun-bao LONG Wei. Dynamic Characteristics of Drilling Rig's Driving Head Transmission SystemUnder Verying Working Environment [J]. Journal of Vibration and Shock, 2014, 33(17): 18-23

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