| 液压气动复合锤的快速下降过程分析 |
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| 引用本文： | 阉耀保,梁之超,黄帅,郭传新.液压气动复合锤的快速下降过程分析[J].流体传动与控制,2012(2):10-13. |
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| 作者姓名： | 阉耀保 梁之超 黄帅 郭传新 |
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| 作者单位： | [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 |
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| 基金项目： | 国家科技支撑计划资助项目（2011BAJ02806）;国家自然科学基金资助项目（50775161,5175378）;航空科学基金资助项目（20090738003）. |
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| 摘 要： | 液压气动锤的回油管路一般长达50m以上，管路压力损失大，回油压力高。液压气动锤下降过程中管路直接影响液压锤的下降速度，进而影响系统的打击能量；为此采用低压蓄能器吸收液压锤排油，实现快速下降。建立下降阶段液压锤的动力学模型，分析回油管路和低压蓄能器的参数对下降速度和打击能量的影响，得出了回油管路和蓄能器参数对液压锤打桩速度和打击能量的影响规律。
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| 关 键 词： | 液压气动锤 快速下降 蓄能器 管路 |
Analysis of Fast Dropping Process of Hydraulic-pneumatic Hammer |
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| Yin Yaobao Liang Zhichao Huang Shuai Guo Chuanxin.Analysis of Fast Dropping Process of Hydraulic-pneumatic Hammer[J].Fluid Power Transmission & Control,2012(2):10-13. |
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| Authors: | Yin Yaobao Liang Zhichao Huang Shuai Guo Chuanxin |
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| Affiliation: | Yin Yaobao Liang Zhichao Huang Shuai Guo Chuanxin |
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| Abstract: | Pipe line of hydraulic hammer is generally up to 50m, so pipe line pressure losses is huge. In the dropping process of hydraulic hammer, oil retum pipe directly affects the body＇s speed and driving power. So low pressure accumulator is considered here to absorb the discharge oil. the dynamic mathematical model of hydraulic hammer＇s down stage is established. The speed and driving power and its influence of hydraulic hammer are obtained. |
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| Keywords: | hydraulic-pneumatic hammer fast dropping process accumulator pipe line |
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