3503E
3503E
【廈門莫格電氣自動(dòng)化有限公司】
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1、直流伺服電動(dòng)機(jī)的基本結(jié)構(gòu)
圖為直流伺服電動(dòng)機(jī)的結(jié)構(gòu)，主要包括定子、轉(zhuǎn)子、電刷與換向片三個(gè)部分
2. 直流伺服電動(dòng)機(jī)的分類
?。?）根據(jù)電動(dòng)機(jī)本身結(jié)構(gòu)的不同，可分為以下幾類：
改進(jìn)型直流伺服電動(dòng)機(jī)轉(zhuǎn)子的轉(zhuǎn)動(dòng)慣量較小，過載能力較強(qiáng)，且具有較好的換向性能。
小慣量直流電動(dòng)機(jī)zui大限度地減少了轉(zhuǎn)子的轉(zhuǎn)動(dòng)慣量，能獲得的快速特性。
永磁直流伺服電動(dòng)機(jī)能在較大過載轉(zhuǎn)矩下*地工作，轉(zhuǎn)動(dòng)慣量較大，無勵(lì)磁回路損耗，可在低速下運(yùn)轉(zhuǎn)。
無刷直流電動(dòng)機(jī)由同步電動(dòng)機(jī)和逆變器組成，而逆變器是由裝在轉(zhuǎn)子上的轉(zhuǎn)子位置傳感器控制。
?。?）根據(jù)直流電動(dòng)機(jī)對(duì)勵(lì)磁繞組的勵(lì)磁方式不同，可分為他勵(lì)式、并勵(lì)式、串勵(lì)式和復(fù)勵(lì)式四種。
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