五、電動(dòng)機(jī)運(yùn)行時(shí)響聲不正常有異響
故障原因①軸承磨損或油內(nèi)有砂粒等異物；②轉(zhuǎn)子鐵芯松動(dòng)；③軸承缺油；④電源電壓過高或不平衡。
故障排除①更換軸承或清洗軸承；②檢修轉(zhuǎn)子鐵芯；③加油；④檢查并調(diào)整電源電壓。
六、運(yùn)行中電動(dòng)機(jī)振動(dòng)較大
故障原因①由于磨損軸承間隙過大；②氣隙不均勻；③轉(zhuǎn)子不平衡；④轉(zhuǎn)軸彎曲；⑤聯(lián)軸器（皮帶輪）同軸度過低。
故障排除①檢修軸承，必要時(shí)更換；②調(diào)整氣隙，使之均勻；③校正轉(zhuǎn)子動(dòng)平衡；④校直轉(zhuǎn)軸；⑤重新校正，使之符合規(guī)定。
新聞:崇川區(qū)ATM機(jī)用步進(jìn)馬達(dá)57HS51手冊(cè)
交流伺服電機(jī)也是無刷電機(jī)，分為同步和異步電機(jī)，目前運(yùn)動(dòng)控制中一般都用同步電機(jī)，它的功率范圍大，可以做到很大的功率。大慣量，轉(zhuǎn)動(dòng)速度低，且隨著功率增大而快速降低。因而適合做低速平穩(wěn)運(yùn)行的應(yīng)用。
使用電機(jī)時(shí)要注意的問題？
答：上電運(yùn)行前要作如下檢查：
1） 電源電壓是否合適（過壓很可能造成驅(qū)動(dòng)模塊的損壞）；對(duì)于直流輸入的 +/- 極性一定不能接錯(cuò)，驅(qū)動(dòng)控制器上的電機(jī)型號(hào)或電流設(shè)定值是否合適（開始時(shí)不要太大）；
2） 控制信號(hào)線接牢靠，工業(yè)現(xiàn)場要考慮屏蔽問題（如采用雙絞線）；
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一般常用的有溶劑清洗法、化學(xué)處理清潔法和機(jī)械清潔法。表面干燥清洗干凈后可用過濾的干燥壓縮空氣吹干，或者用12~17℃的干燥器進(jìn)行干燥，也可用干凈紗布擦干。涂敷防銹油的方法1）浸泡法：一些小軸承采用浸泡在防銹油脂中，讓其表面粘附上一層防銹油脂的方法。油膜厚度可通過控制防銹油脂的溫度或粘度來達(dá)到。刷涂法用于不適用浸泡或噴涂的室外建筑設(shè)備或特殊形狀的制品，刷涂時(shí)既要注意不產(chǎn)生堆積，也要注意防止漏涂。
新聞:崇川區(qū)ATM機(jī)用步進(jìn)馬達(dá)57HS51手冊(cè)
1,直流他勵(lì)電動(dòng)機(jī):
勵(lì)磁繞組與電樞沒有電的聯(lián)系，勵(lì)磁電路是由另外直流電源供給的。因此勵(lì)磁電流不受電樞端電壓或電樞電流的影響。
2,直流并勵(lì)電動(dòng)機(jī):
并勵(lì)繞組兩端電壓就是電樞兩端電壓，但是勵(lì)磁繞組用細(xì)導(dǎo)線繞成，其匝數(shù)很多，因此具有較大的電阻，使得通過他的勵(lì)磁電流較小。
3,直流串勵(lì)電動(dòng)機(jī)：
勵(lì)磁繞組是和電樞串聯(lián)的，所以這種電動(dòng)機(jī)內(nèi)磁場隨著電樞電流的改變有顯著的變化。為了使勵(lì)磁繞組中不致引起大的損耗和電壓降，勵(lì)磁繞組的電阻越小越好，所以直流串勵(lì)電動(dòng)機(jī)通常用較粗的導(dǎo)線繞成，他的匝數(shù)較少。
4,直流復(fù)勵(lì)電動(dòng)機(jī)：
電動(dòng)機(jī)的磁通由兩個(gè)繞組內(nèi)的勵(lì)磁電流產(chǎn)生。
新聞:崇川區(qū)ATM機(jī)用步進(jìn)馬達(dá)57HS51手冊(cè)
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新聞:崇川區(qū)ATM機(jī)用步進(jìn)馬達(dá)57HS51手冊(cè)
