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起重机
相关语句
  crane
    Functions extensions of series F crane remote control device with application of PLC
    用可编程序控制器实现 F 系列起重机遥控器的功能扩展
短句来源
    Taking the digital control system which consists of Mitsubishi FX2-80MR PLC controlling Anchuan 616G5 converter for example, this paper describes the relevant action among the hardware of application of the system in QTZ80 crane and PLC and converter.
    文章以三菱FX2-80MR可编程控制器(PLC)控制安川616G5变频器组成的数字控制系统为例,介绍了该系统在QTZ80起重机中应用的硬件结构及PLC和变频器的相关作用。
    The Application of PLC in Crane Control
    PLC在起重机控制中的应用
短句来源
    The Intelligent Protectors for the Motor in a Portal Crane
    起重机电动机的智能保护器
短句来源
    Application of Programmable Controller (PLC) in Retrofit of the Crane Control System
    可编程控制器(PLC)在起重机控制系统改造中的应用
短句来源
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  hoist crane
    PLC Control in Bridge Type Hoist Crane Examination Application
    PLC控制在桥式起重机检测中的应用
短句来源
    Settles the Sichuan highly effective frequency changer to lift in the organization automatic control system application in the harbor medium hoist crane
    安川高效变频器在港口中型起重机起升机构自控系统中的应用
短句来源
  “起重机”译为未确定词的双语例句
    Technical Improvement on Boiler Lifting Scheme of 660 MW Thermal Power Units
    660MW火电机组锅炉吊装方案的技术改进——兼谈利渤海尔LR1400全液压履带式起重机的特点及应用
短句来源
    The VVVF project of the derrick of coal transmission system in power plant
    发电厂输煤系统起重机的变频调速方案
短句来源
    Electrical control system of Zhougongzhai cableway
    周公宅缆索起重机电气控制系统
短句来源
    Stability of induction motor is analyzed with Lyapunov stability theory and center manifold theorem. It is shown that saddle-node bifurcation happens in induction motor when there is not enough input power to drive load.
    一是应用Lyapunov方法及中心流形定理研究了感应电动机本体的运动稳定性,揭示了感应电动机在输入功率不足以驱动负载时,电动机运行过程中将出现鞍结分岔,这对于分析感应电动机应用于垂直牵引如电梯、起重机的运动过程,避免发生故障具有重要的实际意义;
短句来源
    The experiment results show that it has good static characteristic and adjustable speed range of 20:1 and its dynamic characteristics can meet the requirements of frequent starting and braking.
    实验结果表明:其静态特性好,调速范围 20:1,动态特性能够满足频繁起动和制动的要求,因此,它适用于起重机的重复短时工作;
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  crane
The algorithm of control of a multivariable plant was used to solve the problems of control of the overhead crane and calculation of the cost of option for buy (sell) of shares.
      
An experiment is described on artificial insemination of females of the white-naped crane Grus vipio by the frozen-thawed semen of the Siberian white crane G.
      
As a result, an interspecific hybrid of cranes was obtained, which confirmed the possibility of producing a bank of cryoconserved crane semen.
      
The use of the white-naped crane females was due to the absence of conspecific males and unavailability of Siberian white crane females.
      
Problems of artificial insemination and cryoconservation of semen of rare crane species are discussed.
      
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This paper discusses a microprocessor-based voltage-adjusting direct digital speed control system of an A.C. induction motor. This system consists of such functions as digital comparision, digital regulation, digital timing control, pulse trigger for thyristors, logical change of the rotation direction of the motor, automatical display of the trouble locations and alarm making. It has the advantages of rapid response, high accuracy, compact size of control device and easy operation. The experiment results show...

This paper discusses a microprocessor-based voltage-adjusting direct digital speed control system of an A.C. induction motor. This system consists of such functions as digital comparision, digital regulation, digital timing control, pulse trigger for thyristors, logical change of the rotation direction of the motor, automatical display of the trouble locations and alarm making. It has the advantages of rapid response, high accuracy, compact size of control device and easy operation. The experiment results show that it has good static characteristic and adjustable speed range of 20:1 and its dynamic characteristics can meet the requirements of frequent starting and braking. Hence it is fit for repetitive short time work of cranes and for ventilation and pump loads that can obtain good results in saving energy under their operations at lower speed.

本文研究一种利用微处理机对交流异步电动机调压调速的直接数字控制系统。该系统包括数字比较、数字调节、数字定时控制、对可控硅的脉冲触发、对电动机实现逻辑换向、自动显示故障和报警等多种功能。它具有响应较快、精度较高、控制设备体积小和操作方便等优点。实验结果表明:其静态特性好,调速范围 20:1,动态特性能够满足频繁起动和制动的要求,因此,它适用于起重机的重复短时工作;对风机、泵类负载在低速运行下可收到好的节能效益。

This paper introduces a new type lifting device with hydraulic drive,which is light in weight,large in the lifting power.using a gang of the devices,the weight of hundreds even a thousand tons can be lifted.It is of wide use for the work lifting and installing large weight in the industrial departments,such as power plant construc- tion,petroleum,chemical industry and building site,etc.Compared with ordinary cranes,the new device makes a feature of safety,in- expensiveness,high efficiency and universal employablity....

This paper introduces a new type lifting device with hydraulic drive,which is light in weight,large in the lifting power.using a gang of the devices,the weight of hundreds even a thousand tons can be lifted.It is of wide use for the work lifting and installing large weight in the industrial departments,such as power plant construc- tion,petroleum,chemical industry and building site,etc.Compared with ordinary cranes,the new device makes a feature of safety,in- expensiveness,high efficiency and universal employablity. In this paper,the working principle,the structure,the hydraulic circuit and the usage characteristics have been introduced.

本文介绍一种自身重量轻、起重力大,全部采用液压传动的新型起重装置。若干只液压起重器成组使用,能起重数百吨以至上千吨的重物。可广泛应用于电力、石油、化工、建筑等各工业部门巨型重物的起重安装作业中。新型液压起重装置与目前的起重机比较,具有安全、经济、高效率、通用性强等特点。本文介绍了这种装置的工作原理,结构型式,液压传动系统和使用特点。

In this paper,wc take main-hanger motor of 30 / 5 ton bridge crane for example,and analyzes retarding action,cquivalcnt circuit,mechanical characteristic,power relations,calculations of the resistances in series with the rotor and so on,when a three-phase wind type asynchronous motor is retarded by single-phase.

本文以30/5吨桥式起重机的主钩出动机为例对三相绕线式异步电动机进行单相制动时的制动作用、等值电路、机械特性、功率关系及转子所串电阻的计算进行了分析。

 
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