液压气动复合锤工作过程分析  

Analysis of hydraulic-pneumatic hammer working process

作　　者：訚耀保[1] 黄姜卿[1] 张晓琪[1] 郭传新[2] 沈耀冲 

机构地区：[1]同济大学机械工程学院,上海200092 [2]北京建筑机械化研究院,北京100007 [3]上海工程机械厂有限公司,上海200072

出　　处：《建筑机械》2012年第4期67-71,12,共5页Construction Machinery

基　　金：国家科技支撑计划资助项目(2011BAJ02B06);国家自然科技基金会资助项目(51175378;50775161);航空科学基金资助项目(20090738003)

摘　　要：分析某型液压气动打桩锤的液压回路,建立上升和下降过程的动力学方程,分析主要参数对液压锤工作性能的影响,得到了一组符合设计条件的参数,计算结果对液压锤的设计开发具有指导作用。Aimed at the problem of hydraulic speed control with restriction of hydraulic hammer,the smooth control method of with volume is discussed. The mechanism and structure of hydraulic-pneumatic composite pile driving hammer are introduced.The dynamic mathematical models of hydraulic hammer at rising process and lifting process are got.Hydraulic components decide the characteristics of hydraulic hammer.The acceleration and striking blow energy are related with hammer weight,gas pressure of nitrogen chamber in hydraulic cylinder,the maximum height of hammer and resistance loss of return pipe.The results provide a theoretical method to analysis and design the hydraulic-pneumatic pile driving hammer.

关 键 词：液压气动打桩锤 蓄能器 动力学方程 

分 类 号：TU67[建筑科学—建筑技术科学]