【正文】 作用：旋轉(zhuǎn)，產(chǎn)生電磁轉(zhuǎn)矩。轉(zhuǎn)子鐵心也是由相互絕緣的硅鋼片迭成的。根據(jù)轉(zhuǎn)子繞組構(gòu)造不同可分為兩種型式：籠型轉(zhuǎn)子和繞線型轉(zhuǎn)子。它像個鼠籠，故稱之為籠型轉(zhuǎn)子。在澆鑄的同時，把和端部的冷卻風(fēng)扇也一起用鋁鑄成。繞組的三個出線端分別接到轉(zhuǎn)軸端部的三個彼此絕緣的銅質(zhì)滑環(huán)上。故繞線式轉(zhuǎn)子又稱滑環(huán)式轉(zhuǎn)子。特別是鄉(xiāng)鎮(zhèn)企業(yè)及家用電器的迅速，更需要大量的中小功率電動機。本文主要介紹了電動機技術(shù)發(fā)展及現(xiàn)狀、工作原理、電動機的運行維護(hù)。s Daily lives have extremely extensive application especially the town enterprise and household appliances quickly, need a lot more of small and mediumsized power motors due to this kind of motor development and the widespread application, its use and maintenance work is being more and more important to maintain this article mainly introduced the motor technology development and working principle of motor operation maintenance目 錄1引言............................................................................................................................................3...................................................................................................................4 .....................................................................................................4...................................................................................................4 ...................................................................5 電動機保護(hù)及其裝置...................................................................................................6...................................................................................6 ...................................................................................7..........................................................................................7 .....................................................................................7 ..............................................................................................7 ..............................................................................................7 ..............................................................................................8 ..............................................................................................8 ..............................................................................................93電動機的運行維護(hù)........................................................................................................9.....................................................................................................9 ..................................................................................................10 電動機運行中的注意事項........................................................................................10.........................................................................................................................10 三相異步電動機日常保養(yǎng)方法..............................................................................11 5結(jié)語.........................................................................................................................................12 參考文獻(xiàn)..................................................................................................................................13三相異步電動機的維護(hù)與保養(yǎng)1引言在昆侖機電實習(xí)的兩個月的日子里，日常電機生產(chǎn)維修維護(hù)工作中，以及平時與工人師傅們的指導(dǎo)與交流，使我認(rèn)識到許多時候電機的損傷在正確的操作與維護(hù)中是可以有效避免的。為了確保機器的正常運行，保證生產(chǎn)效率，避免資源浪費，我們需要有一套系統(tǒng)的電機維護(hù)與保養(yǎng)的方法。三相異步電機的維護(hù)與保養(yǎng)主要可以分為對安裝在電動機內(nèi)部的保護(hù)以及安裝在電動機外部部分的保護(hù)。為了能夠較為全面的對電機的整體進(jìn)行維護(hù)與保養(yǎng)，我認(rèn)真的觀察學(xué)習(xí)了三相異步電動機的結(jié)構(gòu)與原理，與師傅們討論交流吸取他們的良好經(jīng)驗，查閱材料整合了所學(xué)的知識，并積極在日常工作中實踐歸納總結(jié)。三相異步電機是靠同時接入380V三相交流電源（相位差120度）供電的一類電動機，由于三相異步電機的轉(zhuǎn)子與定子旋轉(zhuǎn)磁場以相同的方向、不同的轉(zhuǎn)速成旋轉(zhuǎn)，存在轉(zhuǎn)差率，所以叫三相異步電機。按轉(zhuǎn)子結(jié)構(gòu)的不同，三相異步電動機可分為籠式和繞線式兩種。調(diào)節(jié)變阻器電阻可以改善電動機的起動性能和調(diào)節(jié)電動機的轉(zhuǎn)速。磁路又是由定子鐵心和轉(zhuǎn)子鐵心構(gòu)成的。鐵心內(nèi)圓有均勻分布的槽口，用來嵌放定子繞圈用的。電路部分是由定子繞組和轉(zhuǎn)子繞組構(gòu)成的。線圈由絕緣銅導(dǎo)線或絕緣鋁導(dǎo)線繞制。圖11 這是一臺三相籠型異步電動機工作原理的示意圖。轉(zhuǎn)子槽內(nèi)放有導(dǎo)條，導(dǎo)條兩端用短路環(huán)短接起來，