液压锚缆机平衡阀的故障分析

文章就某船液压锚缆机操纵阀置于中位时,收紧的缆绳在张力的作用下马上松开,回到松弛状态的现象,对平衡阀的结构、工作原理和受力状态进行分析,并提出了修理方法。

半潜式钻井平台锚缆机变速箱的检测和修理

某深海半潜式钻井平台锚缆机是进口的设备,该设备经过多年使用,锚缆机变速箱在运行时发生异常振动。文章阐述了技术参数的检查、测量和分析过程,明确了变速箱的技术参数,根据相关的国家标准、行业标准和企业标准,判断变速箱轴承座、轴承、轴和齿轮是否符合标准要求,并修理不符合标准的零件,解决了变速箱运行时发生异常振动的故障。

大型集装箱船锚缆机刹车短工期修理安排

考虑到集装箱船靠泊时间短,为提高维修效率,改进大型集装箱船锚缆机刹车片更换修理安排,使得该工程从原来的每船至少靠泊4次才能完成修理,变为每船靠泊1次就完成修理,缩短了修理工期,节约了修理费用。

锚缆机轴颈磨损后堆焊修复工艺的改进

本文详细介绍了锚缆机轴轴颈磨损后修复过程中,针对传统修复工艺存在的不足,提出了合理的工艺改进措施,包括焊接前的预处理、焊接修复工艺、校直的方法、加工要求等工艺流程改进,为行业同类锚缆机轴的修复提供借鉴。

船舶锚缆机刹车试验优化方案

文章从锚缆机刹车原理入手,通过对船舶锚缆机修理试验参数的研究,提高锚缆机修理质量,确保锚缆机刹车的安全性和可靠性,以保证其特殊货物安全。

液压锚缆机高低速转换故障分析

文章就某船液压锚缆机在收放锚链和缆绳时不能进行高低速转换的故障,进行了原因分析,并提出了修理方案。

船用液压系统平衡阀的应用和系统故障排除

为了提升对船舶液压系统故障的修理能力,分析了板式平衡阀和螺纹插装式平衡阀的结构特点,阐述了平衡阀在典型船用设备液压系统中的具体功能,开展了船用液压系统平衡阀及其系统故障的研究,结合船舶液压系统平衡回路故障实际案例,分析各类型故障的原因并提出了解决故障的具体方法,从而提高船舶工程技术人员维修、调试相关液压系统的能力。

ANALYSIS ON INCREMENTAL COHESION OF SURROUNDING ROCK DUE TO PRESTRESSED CABLE ANCHOR

A new method for determining the incremental cohesion △Cm of surrounding rock due to prestressed cable anchor is presented, and the formulas for △Cm are deduced and △Cm distributions also are discussed, based on the two anchorage effects, one is the effect with the prestressed vaIue △σ3 of cable anchor improving the stress state of surrounding rock and increasing the surrounding rock strength, the other is the fully encapsulated effect. The determined incremental cohesion △Cm is subiected to the model test and field measurement in the references, and coincides well with those tested results. The formulas for △Cm can be used in designing supoport parameters and related numerical analyses of prestressed cable anchor.

Applied on bolting-cable anchor support of full-seam roadway in weaker thick coal seam

The designing method and the supporting mechanism of both bolt and small cable anchor for full seam roadway in the weaker thick coal seam are systematically analyzed, and the construction technology and the supporting results are briefly summarized.