电脑桌面
添加小米粒文库到电脑桌面
安装后可以在桌面快捷访问

电梯基础知识4电梯机房、井道和底坑

电梯基础知识4电梯机房、井道和底坑_第1页
电梯基础知识4电梯机房、井道和底坑_第2页
电梯基础知识4电梯机房、井道和底坑_第3页
No: Date: Page: Original: ITSA-TD-2044/01 2004/09/27 1 of 4-39 U&D ELEVATOR ODBO (CHINA) All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner. 未经许可,不得复制。 电梯基础知识 Lift Know -how 4 电梯机房、井道和底坑 Machine room,Well and pit of lift 4-1机房 Machine room 电梯机房一般设置在电梯井道的顶部(机房上置式)。机房内安装有曳引机、导向轮、控制柜、限速器、总电源控制盒等。 Normally located on top of well (upper-placed machine room), machine room includes traction machine, diverter pulley, control cabinet, overspeed governor and main power control box. 4-1-1 控制柜 Control cabinet 电梯控制柜安装在曳引机旁边,是电梯的拖动装置和信号控制中心。如图 4-1所示。早期的电梯控制柜中有接触器、继电器、电容、电阻器、变压器、整流器等。随着电脑、电子技术的飞越发展,VVVF控制技术、光纤通讯技术、串行通信、网络技术等在电梯上得到广泛应用。大规模集成电路的应用使电梯控制柜体积越来越小,功能越来越强,可靠性越来越高。目前的电梯控制柜大多由全电脑控制板和变频器组成,达到对交流电动机进行调频调压调速控制(VVVF)。 Located near traction machine, control cabinet serves as a trailing device and signal control center, as shown in figure 4-1. Originally, control cabinet included contactor, relay, capacitor, resistor, transformer, and rectifier. With rapid development of computer and electronics as well as wide application of VVVF control technology, optical fiber communication technology, serial communication and network technology in lift, application of big scale integrated circuit makes control cabinet smaller in size, stronger in function and more reliable in operation. Currently, control cabinet is composed of computer control panel and frequency inverter, to control AC motor in terms of frequency, voltage and speed (VVVF). No: Date: Page...

1、当您付费下载文档后,您只拥有了使用权限,并不意味着购买了版权,文档只能用于自身使用,不得用于其他商业用途(如 [转卖]进行直接盈利或[编辑后售卖]进行间接盈利)。
2、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。
3、如文档内容存在违规,或者侵犯商业秘密、侵犯著作权等,请点击“违规举报”。

碎片内容

小辰+ 关注
实名认证
内容提供者

出售各种文档和资料

确认删除?
VIP
微信客服
  • 扫码咨询
会员Q群
  • 会员专属群点击这里加入QQ群
客服邮箱
回到顶部