摘要
通过对旋转运动与往复运动转换机理的研究,设计了一种新型旋转冲击复合钻井工具,利用一对由啮合棘轮组成的冲击发生机构产生高频轴向冲击和振动,提供了一种将螺杆钻具的高速旋转与冲击器的高频冲击相结合的破岩方式。对冲击发生及能量传递机构、防掉及防磨扶正机构、动力及联动机构展开了详细的结构设计分析。利用Creo Parametric 2.0软件完成了冲击发生及能量传递机构三维实体造型及整体装配,并对其进行了运动仿真和室内原理验证试验,结果表明,冲击发生机构能够实现将旋转动力转化为从动件的往复冲击,工具工作原理可行,结构简单,具有良好应用前景。
A new type composite rotary percussion drilling tool was designed by studying the conversion mechanism of rotary to reciprocating motion. High-frequency axial impact and vibration was generated by an impact and energy transfer mechanism consisting of a couple of mating cams. A new kind of high rock breaking efficiency method was provided by combining the high speed rotation of positive displacement motor（PMD） with the high-frequency impact of impactor. Detailed structural design and working principle analysis was carried out on impact and energy transfer mechanism, righting and falling and abrasion proof mechanism, power and binding mechanism, using software Creo Parametric 2.0, Three dimensional solid modeling and the whole assembly of impact and energy transfer mechanism was completed. Motion simulation and indoor principle verification test were carried through. Results show that rotary power can be transferred into followers＇ reciprocating impact by the impact and energy transfer mechanism, and that the tool＇ s working principle is feasible, and it has simple structure and a good application prospect.
出处
《机械强度》
CAS
CSCD
北大核心
2017年第2期392-396,共5页
Journal of Mechanical Strength
基金
中石化科技部前瞻项目
中石化科技部攻关项目资助~~
关键词
旋冲钻井
啮合棘轮
冲击发生机构
运动仿真
Rotary percussion drilling
Mating cams
Impact mechanism
Motion simulation
