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Improvements Of The Conveying Machinery In Thermal Power Plants – Case Studies

机译：火力发电厂输送机械的改进-案例研究

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Bucket wheel boom (BWB) hoisting systems are the vital parts of the bucket wheel excavators (BWE). Failures of the mentioned systems are inevitably cause the BWE collapse followed by a very huge financial loss. This paper discusses the results of the investigation of the stress states of the BWB hoisting system connecting eye-plate. The redesign solution for the connecting eye-plate reconstruction has been chosen based on the comparative stress analysis of alternative solutions. The adopted solution satisfies all design restrictions and strength criterion. Besides that, the stress level is lower for ≈ 20 % compared to the original connecting eye-plate design. After installing the redesigned connecting eye-plates as well as during the operation of the BWE no failures have occurred.
机译：斗轮吊臂（BWB）提升系统是斗轮挖掘机（BWE）的重要组成部分。所提到的系统的故障不可避免地导致BWE崩溃，继而造成巨大的财务损失。本文讨论了连接眼板的BWB提升系统应力状态的研究结果。根据替代解决方案的比较应力分析，选择了用于连接眼板重建的重新设计解决方案。所采用的解决方案满足所有设计限制和强度标准。除此之外，与原始的连接眼板设计相比，应力水平降低了约20％。在安装重新设计的连接孔板之后以及在BWE运行期间，没有发生任何故障。

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