便携式液压打桩机动力学理论研究  

The Theoretical Study of Portable Hydraulic Pile Driver in Dynamics

作　　者：韩林山[1,2] 张步恩 韩剑鹏 

机构地区：[1]华北水利水电大学机械学院,河南郑州450000 [2]水资源高效利用与保障工程河南省协同创新中心,河南郑州450000 [3]华北水利水电大学电力学院,河南郑州450000

出　　处：《机械设计与制造》2015年第12期55-57,共3页Machinery Design & Manufacture

摘　　要：汛期的堤防加固以及公路建设与维护的打桩作业,由机械设备代替人力进行打桩作业是技术上的一次长足进步。针对打桩设备作业效率低、自重大及劳动强度大等缺陷,研发便携式液压打桩机用于防汛抢险、高速公路及铁路护栏建设等领域的打桩作业将促进行业发展。在简化条件下,通过建立便携式液压打桩机打桩过程的动力学模型,分析了动力学模型系统的加速度以及打桩过程中桩身周面摩擦力与桩端土壤阻力对沉桩的影响。得到基频与加速度的关系,土壤阻力对打桩机的影响,为研发便携式液压打桩机产品样机奠定良好的理论基础。In flood season, embankment reinforcement and the construction and maintenance of road need piling. Pile driving operation by machinery equipment instead of manual labor is a technological progress at a time. At present, piling equipments＇ effwiency is low piling equipments＇ self-weight and labor intensity is high and so on, so researches a portable hydraulic pile driver, which uses in areas such as flood control and emergency rescue and the guardrail construction of highway and railway, will promote the development of industry. Under the simplified conditions, by establishing the dynamic model of portable hydraulic pile driver piling process, analyzing the acceleration of the system of dynamic model and the influence of the pile body surface friction and the pile end soil resistance to the pile in the piling. And gets the relationship between the acceleration and the base frequency and the influence of the soil resistance to the pile, which will be a good theoretical basis for the development of the portable hydraulic pile driver product prototype.

关 键 词：便携式液压打桩机 动力学模型 基频 加速度 土壤阻力 

分 类 号：TH16[机械工程—机械制造及自动化] TH113