旋挖钻机钻杆减振器研究  

Research on drillstring absorber for rotary drilling rig

作　　者：徐信芯[1] 焦生杰[1] 成建联[1] 顾海荣[1] 李金平[1] 

机构地区：[1]长安大学公路养护装备国家工程实验室,陕西西安710064

出　　处：《合肥工业大学学报（自然科学版）》2016年第6期730-735,806,共7页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51408046);中央高校基本科研业务费专项资金资助项目(310825151040);高等学校博士学科点专项科研基金资助项目(20110205110002);陕西省科技统筹创新工程重点实验室资助项目(2014SZS11-Z01)

摘　　要：为了有效地控制和减弱旋挖钻机钻杆的纵向振动,文章基于吸振原理设计了一种旋挖钻机钻杆减振器。根据钻杆纵向振动的特点,分别建立了钻杆-钻头-减振器系统与孔底无碰撞作用、钻杆-钻头-减振器系统与孔底有碰撞作用、系统受到一个周期性轴向外力激励3种典型作用状态的动力学模型,并通过仿真验证了减振器的减振效果;建立旋挖钻机钻杆减振系统,并进行试验研究其对减振器的减振效果,试验结果表明,安装减振器后钻杆的纵向振动幅度明显减小,钻杆减振器具有显著的减振作用。该研究对工程机械其他产品的减振研究具有一定的参考价值。In order to control and reduce longitudinal vibration of the drillstring of rotary drilling rig more effectively ,a drillstring absorber was designed based on vibration absorption principle .Accord-ing to the longitudinal vibrational properties of drillstring ,dynamic models in three typical situations were established respectively ,including no colliding between the system of drillstring -drill bit-absorb-er and the bottom of a borehole ,colliding between the system of drillstring-drill bit-absorber and the bottom of a borehole ,and subjecting to an external periodic force to the system .Meanwhile the effect of drillstring absorber was proved with simulation .The test of suppressing vibration was set up to verify the effect of absorber .The results show that the system is capable of suppressing vibration with the absorber ,and for the longitudinal vibration ,the effect of the absorber is better .The research can offer a reference for reducing vibration in other engineering machinery manufacture .

关 键 词：旋挖钻机 钻杆振动 吸振原理 减振器 

分 类 号：TU67[建筑科学—建筑技术科学]