新聞:豐城市剝線機專用步進(jìn)電機103H7123-5710型錄
調(diào)速電機在長期使用過程中，由于周圍的工作環(huán)境條件較差、地面不整潔，時間一長，由于帶電以及電樞的吸氣作用、電機電磁的吸引等原因，很容易使塵埃、紙毛、金屬屑等進(jìn)入電機內(nèi)部，黏附于離合器電樞的內(nèi)孔和磁極轉(zhuǎn)子的表面。一旦積累過多便會堵塞其間的空隙，使磁極轉(zhuǎn)子與異步電機同速旋轉(zhuǎn)，出現(xiàn)印刷高速"飛車"、轉(zhuǎn)速無法調(diào)整的現(xiàn)象，嚴(yán)重時甚至損環(huán)電機轉(zhuǎn)差離合器控制裝置的有關(guān)元件。因此，對于膠印機滑差電機，應(yīng)每年定期拆下對其邊行除塵清洗，以避免此類問題的發(fā)生。膠印機的電氣系統(tǒng)因保養(yǎng)不善常會出現(xiàn)以下故障。
�。鱾鲃与姍C運轉(zhuǎn)不正常
滑差電機在運轉(zhuǎn)過程中會劇烈振動，引起軸承發(fā)熱。拆開離合器電樞與磁極轉(zhuǎn)子，檢查電機的軸承是否嚴(yán)重缺乏潤滑油脂，而造成軸承嚴(yán)重磨損，電動機的運轉(zhuǎn)性能下降。此時需要更換已損壞的軸承，并加注好潤滑油脂。正常情況下，應(yīng)對這部分機構(gòu)的所有部件進(jìn)行一次清洗、加油，以保證主傳動電機的正常運行。
新聞:豐城市剝線機專用步進(jìn)電機103H7123-5710型錄
CV750-3-S-B-G3-TL-V3
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一般固體材料中的聲速隨其溫度升高而降低，有試驗數(shù)據(jù)表明，熱態(tài)材料每增加1C，聲速下降1%。對于高溫在役設(shè)備常常碰到這種情況。應(yīng)選用高溫專用探頭和高溫耦合劑（3－6C)，切勿使用普通探頭。層疊材料、復(fù)合（非均質(zhì)）材料。要測量未經(jīng)耦合的層疊材料是不可能的，因超聲波無法穿透未經(jīng)耦合的空間，而且不能在復(fù)合（非均質(zhì)）材料中勻速傳播。對于由多層材料包扎制成的設(shè)備（像尿素高壓設(shè)備），測厚時要特別注意，測厚儀的示值僅表示與探頭接觸的那層材料厚度。
減速器-型號選擇
盡量選用接近理想減速比：
減速比=伺服馬達(dá)轉(zhuǎn)速/減速機出力軸轉(zhuǎn)速
扭力計算：
對減速機的壽命而言,扭力計算非常重要,并且要注意加速度的轉(zhuǎn)矩值(TP),是否超過減速機之負(fù)載扭力.
適用功率通常為市面上的伺服機種的適用功率,減速機的適用性很高,工作系數(shù)都能維持在1.2以上,但在選用上也可以以自己的需要來決定:
要點有二:
A.選用伺服電機的出力軸徑不能大于表格上使用軸徑.
B.若經(jīng)扭力計算工作,轉(zhuǎn)速可以滿足平常運轉(zhuǎn),但在伺服全額輸出時,有不足現(xiàn)象時,我們可以在電機側(cè)之驅(qū)動器,做限流控制,或在機械軸上做扭力保護(hù),這是很必要的.
新聞:豐城市剝線機專用步進(jìn)電機103H7123-5710型錄
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不少人都認(rèn)為電動閥貴，使用成本高，據(jù)知，其實不然，如果以整體計算，傳統(tǒng)閥要加上許多配件及管路安裝，價格并未占優(yōu)勢，反而要承擔(dān)較多的保養(yǎng)費用。就電動閥而言，因電動閥具備裝配容易、故障率低以及符合業(yè)界自動化需求的優(yōu)點，是業(yè)者較劃算的選擇。因為使用一般傳統(tǒng)氣動閥，免不了要有配管、電磁閥及壓縮機等才能匹配，而電動閥是以馬達(dá)驅(qū)動，安裝簡易省事，且電動閥安裝配合工廠原有的自控線路即可，可節(jié)省其他成本支出。此外，以馬達(dá)驅(qū)動方式開閉較平順，無瞬間沖力過大的缺點，故障率可大幅降低。
新聞:豐城市剝線機專用步進(jìn)電機103H7123-5710型錄
