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      點(diǎn)擊:

    LK4主令控制器 LK4系列主令控制器適用于交流50Hz ,電壓至380V及直流電壓至440V的電路中, 主要用作起動(dòng)重機(jī)磁力控制屏的遙遠(yuǎn)控制。主令控制器制成保護(hù)式,必須安裝在能 防止雨雪侵襲的地方
    1. LK4系列主令控制器適用于交流50Hz電壓至380V及直流電壓至220V的電路 中,為自動(dòng)化電力傳動(dòng)裝罝中的控制原件。主令控制器可直接或經(jīng)過減速器與操作機(jī)構(gòu)聯(lián)接而主令控制器觸頭根據(jù)操作機(jī)構(gòu)的行程或轉(zhuǎn)角按一定順序閉合或斷開。 (也可借輔助電動(dòng)機(jī)來驅(qū)動(dòng))。
    1.1主令控制器的基本原件有凸輪裝配與觸頭裝配。凸輪裝配由軸與凸輪盤組合而成。凸輪盤由兩個(gè)同樣的半圓塊所組成,每塊上開有十個(gè)孔及一條圓柄,,兩孔間 隔為1良凸輪片上開有槽孔,可向固定螺檢左右兩各調(diào)動(dòng)10°30 ?因而受凸輪所控 制的觸頭斷開與閉合的位罝也可隨之調(diào)整.由于主令控制器觸頭斷弧能力及機(jī)械部 分抗磨性的限制,凸輪盤的回轉(zhuǎn)度速度不得超過60轉(zhuǎn)/分。
    1.2每一凸輪盤作用一支電路,凸輪盤數(shù)相當(dāng)于控制器的電路數(shù)。當(dāng)主令控制器有 較多的電路數(shù)時(shí),則是有兩組凸輪裝配,動(dòng)觸頭裝配與靜觸頭裝配。同是根據(jù)需 要,主令控制器的凸輪裝配可以并聯(lián)同轉(zhuǎn),即兩組凸輪裝配同時(shí)旋轉(zhuǎn)。也可串聯(lián)旋 轉(zhuǎn),即第一組的凸輪裝配和第二組凸輪裝配依次回轉(zhuǎn)。
    1.3按LK4系列主令控制器的外殼裝置可分為
    1.3.1保護(hù)式主令控制器LK4-0 LK4-1

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