新聞:興國(guó)縣二相直流電動(dòng)機(jī)PF265P-B原裝
直流電機(jī)電樞反應(yīng)的問(wèn)題
1、直流電機(jī)的電樞磁場(chǎng)，對(duì)轉(zhuǎn)矩沒(méi)有貢獻(xiàn)；
2、直流電機(jī)的電樞磁場(chǎng)，對(duì)主極磁場(chǎng)是交軸去磁作用，負(fù)載大時(shí)電樞電流大，去磁作用越強(qiáng)；
3、直流電機(jī)的定子磁場(chǎng)，都安裝有換向極，換向極的勵(lì)磁電流就是電樞電流；
4、換向極的磁極方向與電樞磁場(chǎng)方向始終相反，互相抵消，這樣保證主極磁場(chǎng)方向不變，磁場(chǎng)不會(huì)因電樞反應(yīng)而減?。?br>
5、直流電機(jī)的電樞電流與勵(lì)磁電流分別控制并沒(méi)有優(yōu)勢(shì)可言；而恰恰是交流電機(jī)的電樞電流磁勢(shì)與轉(zhuǎn)子電流磁勢(shì)互相抵消從而保持旋轉(zhuǎn)磁勢(shì)恒定有優(yōu)勢(shì)！
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新聞:興國(guó)縣二相直流電動(dòng)機(jī)PF265P-B原裝
一般來(lái)說(shuō)，聲音清脆的磚密度大、強(qiáng)度高、吸水率較小，磚的質(zhì)量較好；反之，聲音悶啞的磚密度較小、強(qiáng)度較代、吸水率較大，磚的質(zhì)量較差?？矗菏怯媚繙y(cè)的方法來(lái)檢查釉面磚的表面質(zhì)量。合格的釉面磚不應(yīng)有開(kāi)裂、夾層和釉面開(kāi)裂現(xiàn)象；磚背面不應(yīng)有深度為1/2磚厚的磕碰傷；磚的顏色應(yīng)基本一致；距磚1米處觀(guān)測(cè)，好的釉面磚不應(yīng)有剝邊、波紋、缺釉、棕眼，正面磕破等表面缺陷。比：對(duì)磚的方正和平整，我們可以采用比的方法來(lái)檢查。
新聞:興國(guó)縣二相直流電動(dòng)機(jī)PF265P-B原裝
3、安裝減速機(jī)時(shí)，應(yīng)重視傳動(dòng)中心軸線(xiàn)對(duì)中，其誤差不得大于所用聯(lián)軸器的使用補(bǔ)償量。
不采用鋼性固定式聯(lián)軸器，因該類(lèi)聯(lián)軸器安裝不當(dāng)，會(huì)引起不必要的外加載荷，以致造成軸承的早期損壞，嚴(yán)重時(shí)甚至造成輸出軸的斷裂。
快速處理減速機(jī)常見(jiàn)問(wèn)題（一）減速機(jī)軸承室磨損減速機(jī)軸承室出現(xiàn)磨損，問(wèn)題發(fā)生后，傳統(tǒng)方法難以現(xiàn)場(chǎng)解決，必須依靠外協(xié)修復(fù)，需要長(zhǎng)時(shí)間停機(jī)停產(chǎn)，浪費(fèi)企業(yè)寶貴的生產(chǎn)時(shí)間。
而且都是用金屬修復(fù)金屬，無(wú)法改變“硬對(duì)硬”的配合關(guān)系，在各種力的綜合作用下，仍會(huì)造成再次磨損。
高分子復(fù)合材料具有的粘著力，優(yōu)異的抗壓強(qiáng)度等綜合性能，采用美嘉華高分子復(fù)合材料，可免拆卸、免機(jī)加工，快速有效修復(fù)軸承室磨損。
即無(wú)補(bǔ)焊熱應(yīng)力影響，修復(fù)厚度也不受限制，同時(shí)產(chǎn)品所具有的金屬材料不具備的退讓性，吸收設(shè)備的沖擊震動(dòng)，避免了再次出現(xiàn)磨損的可能。
高分子復(fù)合材料具有的粘著力，優(yōu)異的抗壓強(qiáng)度等綜合性能
新聞:興國(guó)縣二相直流電動(dòng)機(jī)PF265P-B原裝
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