產(chǎn)品詳情
?。鳈C(jī)轉(zhuǎn)速周期性下降
出現(xiàn)這種情況,大多數(shù)是因機(jī)械部分發(fā)生了故障所引起,膠印機(jī)的膠輥比較多,每根膠輥靠軸承來支撐轉(zhuǎn)動。如果某根膠輥的任何一端軸承發(fā)生了故障,都可能使主機(jī)的轉(zhuǎn)速周期性地下峰,嚴(yán)重時,主機(jī)轉(zhuǎn)動會更加困難,應(yīng)立即更換軸承才行。另外,應(yīng)該注意主機(jī)各滾筒包括印-版-,橡皮、壓印滾筒)的軸承及其潤滑部位的工作情況是否正常,如果發(fā)生故障同樣會影響印刷速度。
?。z印機(jī)升速后機(jī)速又逐漸下降以至停機(jī)
出現(xiàn)這種情況,需要觀察膠印機(jī)電氣柜里的電流表指針的變化。如果其指示電流急劇增大,則主電機(jī)的熱繼電器等過載保護(hù)裝置必然會產(chǎn)生保護(hù)動作,使主電機(jī)斷開三相電源而停止運(yùn)轉(zhuǎn)。這時需要認(rèn)真檢查主電機(jī)回路的有關(guān)接線元件及主電機(jī)的交流接觸器,膠印機(jī)電氣柜里的所有熱繼電器等過載保護(hù)裝置的接線部位是否松動,接觸是否不良而發(fā)熱。如果這些部位有問題,則會在主電機(jī)增速后,由于電路中的導(dǎo)線和元件接觸不良使電流迅速增大,而引起保護(hù)性的停機(jī)。當(dāng)膠印機(jī)運(yùn)轉(zhuǎn)速度較低時,由于主電機(jī)的工作電流較小而不會發(fā)生機(jī)速逐漸下降以至停機(jī)的情況,但是,當(dāng)膠印機(jī)升速時,用電負(fù)荷大,電氣元件的故障就會顯露出來。
CV100-3-S-G2-RD-V9 CV100-5-S-G2-RD-V9 CV100-10-S-G2-RD-V9 CV100-15-S-G2-RD-V9 CV100-20-S-G2-RD-V9 CV100-25-S-G2-RD-V9 CV100-30-S-G2-RD-V9 CV100-40-S-G2-RD-V9 CV100-45-S-G2-RD-V9 CV100-50-S-G2-RD-V9 CV100-60-S-G2-RD-V9 CV100-70-S-G2-RD-V9 CV100-80-S-G2-RD-V9 CV100-90-S-G2-RD-V9 CV100-100-S-G2-RD-V9 CV100-120-S-G2-RD-V9 CV100-140-S-G2-RD-V9 CV100-160-S-G2-RD-V9 CV100-180-S-G2-RD-V9 CV100-200-S-G2-RD-V9 CV200-3-S-G2-RD-V9 CV200-5-S-G2-RD-V9 CV200-10-S-G2-RD-V9 CV200-15-S-G2-RD-V9 CV200-20-S-G2-RD-V9 CV200-25-S-G2-RD-V9 CV200-30-S-G2-RD-V9 CV200-40-S-G2-RD-V9 CV200-45-S-G2-RD-V9 CV200-50-S-G2-RD-V9 CV200-60-S-G2-RD-V9 CV200-70-S-G2-RD-V9 CV200-80-S-G2-RD-V9 CV200-90-S-G2-RD-V9 CV200-100-S-G2-RD-V9 CV200-120-S-G2-RD-V9 CV200-140-S-G2-RD-V9 CV200-160-S-G2-RD-V9 CV200-180-S-G2-RD-V9 CV200-200-S-G2-RD-V9 CV400-3-S-G2-RD-V9 CV400-5-S-G2-RD-V9 CV400-10-S-G2-RD-V9 CV400-15-S-G2-RD-V9 CV400-20-S-G2-RD-V9 CV400-25-S-G2-RD-V9 CV400-30-S-G2-RD-V9 CV400-40-S-G2-RD-V9 CV400-45-S-G2-RD-V9 CV400-50-S-G2-RD-V9 CV400-60-S-G2-RD-V9 CV400-70-S-G2-RD-V9 CV400-80-S-G2-RD-V9 CV400-90-S-G2-RD-V9 CV400-100-S-G2-RD-V9 CV400-120-S-G2-RD-V9 CV400-140-S-G2-RD-V9 CV400-160-S-G2-RD-V9 CV400-180-S-G2-RD-V9 CV400-200-S-G2-RD-V9 CV750-3-S-G2-RD-V9 CV750-5-S-G2-RD-V9 CV750-10-S-G2-RD-V9 CV750-15-S-G2-RD-V9 CV750-20-S-G2-RD-V9 CV750-25-S-G2-RD-V9 CV750-30-S-G2-RD-V9 CV750-40-S-G2-RD-V9 CV750-45-S-G2-RD-V9 CV750-50-S-G2-RD-V9 CV750-60-S-G2-RD-V9 CV750-70-S-G2-RD-V9 CV750-80-S-G2-RD-V9 CV750-90-S-G2-RD-V9 CV750-100-S-G2-RD-V9 CV750-120-S-G2-RD-V9 CV750-140-S-G2-RD-V9 CV750-160-S-G2-RD-V9 CV750-180-S-G2-RD-V9 CV750-200-S-G2-RD-V9
新聞:懷柔5相步進(jìn)馬達(dá)28HS5007A產(chǎn)地
IKO軸承中滾動軸承在使用過程中由于本身質(zhì)量和外部條件的原因,其承載能力,旋轉(zhuǎn)精度和減摩性能等會發(fā)生變化,其實(shí)任何東西在使用都會減少壽命的。不過我們這里要說的是,當(dāng)塑料軸承的性能指標(biāo)低于使用要求而不能正常工作時,就稱為軸承損壞或失效,軸承一旦發(fā)生損壞等意外情況時,將會出現(xiàn)其機(jī)器、設(shè)備停轉(zhuǎn),功能受到損傷等各種異?,F(xiàn)象。因此需要在短期內(nèi)查處發(fā)生的原因,并采取相應(yīng)措施,當(dāng)然,滾動軸承損壞的情況比一般機(jī)械零件的損壞要復(fù)雜得多,塑料軸承損壞的特點(diǎn)是表現(xiàn)形式多,原因復(fù)雜,IKO軸承的損壞除了軸承設(shè)計(jì)和制造的內(nèi)在因素外,大部分是由于使用不當(dāng),支承設(shè)計(jì)不合理,安裝不當(dāng),潤滑不良,密封不好等外部因素引起的。
新聞:懷柔5相步進(jìn)馬達(dá)28HS5007A產(chǎn)地
關(guān)于交流伺服電機(jī)的幾個問題
A):交流同步伺服、交流異步伺服的額定轉(zhuǎn)速與極數(shù)是否有關(guān)?n1=60f/2p?額定轉(zhuǎn)速以下輸出恒轉(zhuǎn)矩,額定轉(zhuǎn)速以上恒功率,那么額定轉(zhuǎn)速的界定是由電機(jī)本身的機(jī)械決定還是驅(qū)動器來決定?
有關(guān),同步轉(zhuǎn)速n1=60f/2p,異步機(jī)還有滑差s,n=(1-s)n1,同步機(jī)n=n1,2p為極對數(shù)??刂浦腥醮潘俣鹊慕缍ㄊ怯沈?qū)動器判斷的。
額定轉(zhuǎn)速可以由幾個方面決定:同步伺服的反電勢高低、電機(jī)鐵心材料允許的驅(qū)動電流交變頻率、額定轉(zhuǎn)矩下電機(jī)的功率、溫升等,主要還是反電勢;異步電機(jī)主要受材料允許的頻率以及極對數(shù)限制。
新聞:懷柔5相步進(jìn)馬達(dá)28HS5007A產(chǎn)地
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