Mike Krzyzewski is really a famous coach of Dream Team. She has coached north america men's basketball team for some time, that's clinched numerous medals for his country. Following Londonfl jerseys supplyn Olympic was over, Krzyzewski told The Associated Press that this game will be his final one as national coach, a job he's held for seven years. He had left open the possibility of swomen nfl jerseystaying with the team beyond the London Games, when practice on Saturday said these will be his last Olympics.When asked if he was sure, Krzyzewski didn't hesitate before again saying, "yecheap nfl jerseys wholesales," this will be his last game "If we could win it, then it might be three major championships in a row, i always do not know when that has been done because we haven't usually won http://govoriotkrito.bg/libs/nflcn08.htmthe globe championships," Krzyzewski said. "It becomes an enormous thing for the program." Whatever, he's an awesome coach. His achievement are going to be remembered by the country.cheap nfl jerseys
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LK4主令控制器

2014-2-22 8:44:54      点击:

LK4主令控制器 LK4系列主令控制器适用于交流50Hz ,电压至380V及直流电压至440V的电路中, 主要用作起动重机磁力控制屏的遥远控制。主令控制器制成保护式,必须安装在能 防止雨雪侵袭的地方
1. LK4系列主令控制器适用于交流50Hz电压至380V及直流电压至220V的电路 中,为自动化电力传动装罝中的控制原件。主令控制器可直接或经过减速器与操作机构联接而主令控制器触头根据操作机构的行程或转角按一定顺序闭合或断开。 (也可借辅助电动机来驱动)。
1.1主令控制器的基本原件有凸轮装配与触头装配。凸轮装配由轴与凸轮盘组合而成。凸轮盘由两个同样的半圆块所组成,每块上开有十个孔及一条圆柄,,两孔间 隔为1良凸轮片上开有槽孔,可向固定螺检左右两各调动10°30 ?因而受凸轮所控 制的触头断开与闭合的位罝也可随之调整.由于主令控制器触头断弧能力及机械部 分抗磨性的限制,凸轮盘的回转度速度不得超过60转/分。
1.2每一凸轮盘作用一支电路,凸轮盘数相当于控制器的电路数。当主令控制器有 较多的电路数时,则是有两组凸轮装配,动触头装配与静触头装配。同是根据需 要,主令控制器的凸轮装配可以并联同转,即两组凸轮装配同时旋转。也可串联旋 转,即第一组的凸轮装配和第二组凸轮装配依次回转。
1.3按LK4系列主令控制器的外壳装置可分为
1.3.1保护式主令控制器LK4-0 LK4-1