this paper analyses in quantity for the key factors to influence the fold and unfold of the grab bucket in the four-drum grab bridge ship unloader.
对四卷筒抓斗卸船机抓斗开闭的影响因素进行定量分析,根据悬索理论,给出了悬垂段钢丝绳的悬垂方程。
regarding to the special case of the coal unloading by the train in the thermal plant, a structure type and the main specification of the grab bucket type crane has been designed.
as long as claw shells with different shapes are prepared, the coverage rate of the grab bucket can be changed by changing the claw shells. therefore, various objects can be transported.
the principle and structure and technical parameter of a new type silt-clearing vehicle with grab bucket are introduced.
本文介绍了一种新型抓斗式沙井淤泥清理车的工作原理、结构和技术参数。
according to the usual failures during the practical application of grab bucket crane, the failure display is also developed to be applied to the crane.
并根据抓斗起重机实际运用中经常出现的故障,开发出故障显示 功能。
in oder to research control of grab bucket drive by stages.