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概述了黄河小浪底工程所用的４ ０００ｋＮ液压自动抓梁的结构及工作原理，介绍了其泵站系统、液压穿轴装置及抓梁体的设计和有关参数的选择，实践表明，效果良好。
The structure and working principle of the 4 000 kN hydraulic automatic grab beam used in Xiaolangdi Project of the Yellow River are summarized. The design of pump station system, hydraulic penetration shaft device and grab beam body and the selection of relevant parameters are introduced. Practice shows that the effect is good.