无钻杆钻孔机液压支护装置研究  

Hydraulic bearing structure of rodless drilling rig

作　　者：胡长胜[1] 赵伟民[2] 李瑰贤[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001 [2]大庆石油学院机械科学与工程学院,黑龙江大庆163000

出　　处：《哈尔滨工业大学学报》2009年第7期46-48,共3页Journal of Harbin Institute of Technology

基　　金：黑龙江省自然科学基金资助项目(F2004-15);哈尔滨工业大学校基金资助项目(HIT2003320)

摘　　要：为保证液压支护装置能够有效地撑压在孔壁上,提出了液压支护装置的结构及支护液压缸布置参数.采用几何分析、受力状态分析方法研究了无钻杆钻具支护液压缸布置参数对支撑有效性和土体稳定性的影响.结构的机械强度和液压支护装置作用下孔壁土剪切破坏计算分析表明,按照所给出的支护液压缸布置参数布置支护液压缸即可保证支护装置有效地支撑在孔壁上,同时孔壁土体也不会发生剪切破坏.In order to ensure the hydraulic bearing structure to press stably against the hole wall, the method to design the bearing structure and installing parameters of its hydraulic cylinders were studied. Influences of installing parameters of the rodless drilling rig＇ s hydraulic cylinders on the efficiency of bearing and the earth stability were analyzed with methods of geometric analysis and force state analysis. The calculation of structural strength and earth stability proves that installing parameters of the hydraulic cylinder given in this paper are right. The bearing structure can press stably against the hole wall without shear failure when the hydraulic cylinders are installed according to the parameters given.

关 键 词：无钻杆钻孔机 液压支护装置 支护液压油缸 布置参数 有限元 

分 类 号：TH137[机械工程—机械制造及自动化]