The improvement plan, work principles and reform result on electric control system of main shaft hoist in Linhuan Coal Mine are introduced, and the result is fine.
介绍了临涣煤矿主井提升机电控系统的改造方案、工作原理及改造效果，经过改造后的电控系统效果良好。
Practice has certified that various functions of the sys-tem achieve design requirements, and greatly improve the level of running and managing of service shaft hoist system.
实践证明，系统各项功能均达到设计要求，极大地提高了副井提升系统的运行管理水平。
Wound-rotor induction motors that adjust speed by connecting resistors in series to rotor circuit have been easily found in the electrically controlled systems of shaft hoist.
绕线式异步电机采用转子回路串电阻调速广泛应用于我国工矿企业的提升机电控系统。
The electric brake of AC shaft hoist is an important part on hoisting technics low frequencies power generation brake and power are widely used in the shaft hoist of AC asynchronous drive at present.
交流拖动提升机电气制动是提升工艺中比较重要的一部分，目前交流异步电机拖动的提升机中，广泛应用的制动方式是低频发电制动和动力制动。
Safety brakes have been used at low speed shaft of ladle cranes, especially of those with planet gear boxes. Safety brakes protect the main hoist effectively.
铸造起重机(特别是采用行星减速机者)在卷筒端低速轴上安装安全制动器，对起升机构起到有效的安全保护作用。
The shortcomings existing in electrical control system in preliminary mine hoist are analyzed, and the application and effectiveness of PC in hoisting shaft are summarized.
分析了原矿井提升机电控系统存在的缺陷并阐述可编程序控制器（PC）在矿用提升机中的应用及效果。
This paper presents the transformation situation of the hoist system for service shaft and the successful experience of driving hoist room in the break and unstable rock mass near to surface.
本文介绍了金厂峪金矿副并提升系统改造概况和在破碎不稳固的近地表岩体中开挖卷扬机硐室获得成功的经验。
Moreover, the article elucidates the influence of various parameters on the dynamic response of the hoist - the damp of elastic coupling, stiffness, each turning inertia of hoist shaft, etc.
还阐明了弹性联轴器的阻尼，刚度和高速轴上各转动惯量等参数对起升机构动力响应的影响。
Moreover, the article elucidates the influence of various parameters on the dynamic response of the hoist - the damp of elastic coupling, stiffness, each turning inertia of hoist shaft, etc.
还阐明了弹性联轴器的阻尼，刚度和高速轴上各转动惯量等参数对起升机构动力响应的影响。
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