提升机概论 Introduction of lifting machine

提升机概论 Introduction of lifting machine(中文5300字,英文3300字)
近三十年来，国外提升机机械部分都得到了飞速的发展。起初的提升机是电动机通过减速器传动卷筒的系统，后来出现了直流慢速电动机和直流电动机悬臂安装直接传动的提升机。1981年第一台用同步机悬臂传动的提升机在德国Monopol矿问世，1988年由MAVGHH和西门子合作制造的机电一体的提升机(习惯称为内装电机式)在德国Romberg矿诞生了，这是世界上第一台机械和电气融合成一体的同步电机传动提升机。在提升机机械和电气传动技术飞速发展的同时，电子技术和计算机技术的发展，使提升机的电气控制系统更是日新月异。早在上世纪七十年代，国外就将可编程控制器(PLC)应用于提升机控制。上世纪八十年代初，计算机又被用于提升机的监视和管理。计算机和PLC的应用，使提升机自动化水平、安全、可靠性都达到了一个新的高度，并提供了新的、现代化的管理、监视手段。特别要强调的是，此时期在国外一著名的提升机制造公司，如西门子、ABB、ALSTHOM都利用新的技术和装备，开发或完善了提升机的安全保护和监控装置，使安全保护性能又有了新的提高。

Introduction of lifting machine
Come nearly thirty years, foreign elevator machinery parts has been rapid development. The first hoist is the motor through reducer drive reel system, and later appeared in DC speed motor and DC motor for direct drive hoist cantilever installation. In 1981 the first synchronous machine for the cantilever drive hoist in Germany Monopol mine comes out,1988 by MAVGHH and Siemens cooperative manufacturing integrated mechanical and electrical hoist ( used to call for the built-in motor type ) in Germany Romberg mine was born, it was the world's first mechanical and electrical fused into one of the synchronous motor drive hoist. In the elevator mechanical and electrical drive technology rapid development, electronic technology and computer technology, to make the hoist electrical control system is change rapidly. Early in the last century seventy time, abroad the programmable controller ( PLC ) is applied to elevator control. In the early eighty century, the computer was used to hoist the surveillance and management. The application of the computer and PLC, hoist automation level, safety, reliability has reached a new height, and provides a new, modern management, monitoring means. In particular to emphasize is, this time in foreign famous hoist manufacturing companies such as ABB, ALSTHOM, Siemens, using new technology and equipment, development or perfection of the hoist safety protection and monitoring device, so that the safety protection . [来源：http://www.doc163.com]