The paper analyses the mechanical performances of drill rig drawworks driven by variable frequency motors,and principles of vectors control.
文章从机电一体化的角度 ,分析了钻机绞车在矢量变换变频调速下的机械特性 ,绞车三相异步电机矢量变换控制的工作原理 ,并对绞车电机在电动运行和再生发电运行状态下的能量传递过程进行了阐述 ,以便石油机械工作者更好地了解近年迅速发展起来的交流变频钻机绞车的工作特点和方
Aiming at the heat dissipation of petroleum drilling rig winch a modeling is established for S-type splitter blades and straight splitter blades.
针对石油钻机绞车刹车盘的散热问题,对刹车盘的长短S型叶片和长短直叶片进行了实体建模,并运用CFD对流场仿真分析。
Design and Calculation of ZJ40/2250LDB Rig Drawworks
ZJ40/2250LDB钻机绞车设计计算
Performance Analyses and Researches on Drawworks of Electrically-Driven Drilling Rig;
石油钻机电动绞车特性分析及控制研究
derrick, mobile (i.e.,lorries fitted with a derrick assembly, winches or other appliances for drilling
移动式起重机（即装配有起重机组件、绞盘或其他钻井设施的大卡车）
Technical analysis of oil drilling drawworks of 6000 hp
6000hp石油钻井绞车技术分析
Development of Module Drawworks for 9 000 m Offshore Drilling Rig
海洋平台9000m钻井模块绞车的研制
To move with or as if with a winch.
用绞车拉，用起货机吊用或似乎用绞车或起货机移动
A finite element calculation and analysis of the drilling floor of the 4000 m truck-mounted rig
4000m车载钻机钻台的有限元计算与分析
winch a glider off the ground
用绞车把滑翔机拉起升空
friction geared winch
摩擦传动绞车摩擦传动起货机
electric cargo winch
电动起货机电动起货绞车
ON A CONTROL METHOD OF MICROCOMPUTER CONTROL SYSTEM FOR DISC BRAKE AUTODRILLER
钻机盘式刹车自动送钻微机控制方法的研究
Safety of disc brake automatic driller system
钻机盘式刹车自动送钻中的安全性研究
A clothes wringer.
绞衣机用于绞衣的机器
Mobile gantry crane with adjustable hoist. Dimensions can be specified.
带有可调节绞车的高架移动起重机。可指定尺寸。
The power pack of the mooring winch is placed in the steering gear room on the main deck.
系泊绞车的动力装置位于主甲板上的舵机室内。
Study on the Automatically-Controlled Hydraulic Winch Take-up System of Belt Conveyor;
带式输送机液压绞车自动张紧系统的研究
Research on High Power Automatic Take-up Winch for Belt Conveyor
大功率带式输送机自动张紧绞车的研究
Design on Hydraulic Winch Automatic Tension Device of Long Distance Belt Conveyor
长距离带式输送机液压绞车自动张紧装置设计