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id="3gagya7" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江蘇質(zhì)量電機(jī),電機(jī)</p><p><span>***更新：</span>2020-10-31 01:06:48</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="vzwogyk" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">昆山博途自動(dòng)化科技有限公司</a></p><p><span>聯(lián)系人：</span>李經(jīng)理</p><p><span>郵箱: </span>lizc163@139.com</p><p><span>電話: </span>15358836958</p><p><span>傳真: </span>0512_36684975</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0512-36685475</p><p><span>地址: </span>昆山市周市鎮(zhèn)昌靈路119號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="t79ldv7" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="j7k23pz" class="box"><p><p style="text-indent:25px">直流電機(jī)的勵(lì)磁方式是指對(duì)勵(lì)磁繞組如何供電、產(chǎn)生勵(lì)磁磁通勢(shì)而建立主磁場(chǎng)的問題。根據(jù)勵(lì)磁方式的不同，直流電機(jī)可分為下列幾種類型。他勵(lì)勵(lì)磁繞組與電樞繞組無聯(lián)接關(guān)系，而由其他直流電源對(duì)勵(lì)磁繞組供電的直流電機(jī)稱為他勵(lì)直流電機(jī)，接線如圖1.23（a）所示，江蘇質(zhì)量電機(jī)。圖中M表示電動(dòng)機(jī)，若為發(fā)電機(jī)，則用G表示。永磁直流電機(jī)也可看作他勵(lì)直流電機(jī)，江蘇質(zhì)量電機(jī)。并勵(lì)并勵(lì)直流電機(jī)的勵(lì)磁繞組與電樞繞組相并聯(lián)，江蘇質(zhì)量電機(jī)。作為并勵(lì)發(fā)電機(jī)來說，是電機(jī)本身發(fā)出來的端電壓為勵(lì)磁繞組供電；作為并勵(lì)電動(dòng)機(jī)來說，勵(lì)磁繞組與電樞共用同一電源，從性能上講與他勵(lì)直流電動(dòng)機(jī)相同。江蘇質(zhì)量電機(jī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇質(zhì)量電機(jī),電機(jī)" src="http://tyunfile.71360.com/UpLoadFile/2019/12/7/15/637113296233430119_KSbotuzidonghua_1225199.jpg"></div><p> 無刷直流電動(dòng)機(jī)是采用半導(dǎo)體開關(guān)器件來實(shí)現(xiàn)電子換向的，即用電子開關(guān)器件代替?zhèn)鹘y(tǒng)的接觸式換向器和電刷。它具有可靠性高、無換向火花、機(jī)械噪聲低等優(yōu)點(diǎn)，廣泛應(yīng)用于**錄音座、錄像機(jī)、電子儀器及自動(dòng)化辦公設(shè)備中。無刷直流電動(dòng)機(jī)由永磁體轉(zhuǎn)子、多極繞組定子、位置傳感器等組成。位置傳感按轉(zhuǎn)子位置的變化，沿著一定次序?qū)Χㄗ永@組的電流進(jìn)行換流（即檢測(cè)轉(zhuǎn)子磁極相對(duì)定子繞組的位置，并在確定的位置處產(chǎn)生位置傳感信號(hào)，經(jīng)信號(hào)轉(zhuǎn)換電路處理后去控制功率開關(guān)電路，按一定的邏輯關(guān)系進(jìn)行繞組電流切換）。定子繞組的工作電壓由位置傳感器輸出控制的電子開關(guān)電路提供。位置傳感器有磁敏式、光電式和電磁式三種類型。采用磁敏式位置傳感器的無刷直流電動(dòng)機(jī)，其磁敏傳感器件（例如霍爾元件、磁敏二極管、磁敏詁極管、磁敏電阻器或**集成電路等）裝在定子組件上，用來檢測(cè)永磁體、轉(zhuǎn)子旋轉(zhuǎn)時(shí)產(chǎn)生的磁場(chǎng)變化。江蘇質(zhì)量電機(jī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇質(zhì)量電機(jī),電機(jī)" src="http://tyunfile.71360.com/UpLoadFile/2019/12/7/15/637113296233585989_KSbotuzidonghua_4785259.jpg"></div><p> 工作原理： </p> <p> 導(dǎo)體受力的方向用左手定則確定。這一對(duì)電磁力形成了作用于電樞一個(gè)力矩，這個(gè)力矩在旋轉(zhuǎn)電機(jī)里稱為電磁轉(zhuǎn)矩，轉(zhuǎn)矩的方向是逆時(shí)針方向，企圖使電樞逆時(shí)針方向轉(zhuǎn)動(dòng)。如果此電磁轉(zhuǎn)矩能夠克服電樞上的阻轉(zhuǎn)矩（例如由摩擦引起的阻轉(zhuǎn)矩以及其它負(fù)載轉(zhuǎn)矩），電樞就能按逆時(shí)針方向旋轉(zhuǎn)起來。直流電動(dòng)機(jī)是依靠直流工作電壓運(yùn)行的電動(dòng)機(jī)，廣泛應(yīng)用于收錄機(jī)、錄像機(jī)、影碟機(jī)、電動(dòng)剃須刀、電吹風(fēng)、電子表、玩具等。 </p> <p> 電磁式直流電動(dòng)機(jī)由定子磁極、轉(zhuǎn)子（電樞）、換向器（俗稱整流子）、電刷、機(jī)殼、軸承等構(gòu)成， </p><p style="text-indent:25px">并勵(lì)直流電動(dòng)機(jī)的勵(lì)磁繞組與轉(zhuǎn)子繞組相并聯(lián)，其勵(lì)磁電流較恒定，起動(dòng)轉(zhuǎn)矩與電樞電流成正比，起動(dòng)電流約為額定電流的2.5倍左右。轉(zhuǎn)速則隨電流及轉(zhuǎn)矩的增大而略有下降，短時(shí)過載轉(zhuǎn)矩為額定轉(zhuǎn)矩的1.5倍。轉(zhuǎn)速變化率較小，為5%~15%。可通過消弱磁場(chǎng)的恒功率來調(diào)速。他勵(lì)直流電動(dòng)機(jī)的勵(lì)磁繞組接到**的勵(lì)磁電源供電，其勵(lì)磁電流也較恒定，起動(dòng)轉(zhuǎn)矩與電樞電流成正比。轉(zhuǎn)速變化也為5%~15%?？梢酝ㄟ^消弱磁場(chǎng)恒功率來提高轉(zhuǎn)速或通過降低轉(zhuǎn)子繞組的電壓來使轉(zhuǎn)速降低。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇質(zhì)量電機(jī),電機(jī)" src="http://tyunfile.71360.com/UpLoadFile/2019/12/7/15/637113296233430119_KSbotuzidonghua_7152426.jpg"></div><p> 固定磁場(chǎng)無刷電機(jī)一 </p> <p> 般的無刷直流電機(jī)本質(zhì)上屬于伺服電機(jī)，由同步電機(jī)和驅(qū)動(dòng)器構(gòu)成，是變頻調(diào)速電機(jī)。變壓調(diào)速的無刷直流電機(jī)是真正意義上的無刷直流電機(jī)，它由定子和轉(zhuǎn)子構(gòu)成，定子由鐵心構(gòu)成，線圈采用“順-逆-順-逆……”繞組，由此產(chǎn)生N-S群的固定磁場(chǎng)，轉(zhuǎn)子由一個(gè)圓柱體磁鐵構(gòu)成（中間帶軸），或由電磁鐵加集電環(huán)組成，此無刷直流電機(jī)可以產(chǎn)生轉(zhuǎn)矩，但不能控制方向，無論怎么說，本電機(jī)都是一項(xiàng)非常有意義的發(fā)明。當(dāng)作為一個(gè)直流發(fā)電機(jī)，本發(fā)明可以產(chǎn)生連續(xù)振幅的直流電流，從而避免使用濾波電容器，轉(zhuǎn)子可以是永磁、有刷勵(lì)磁或無刷勵(lì)磁。當(dāng)作為大型電機(jī)時(shí)，本電機(jī)會(huì)產(chǎn)生自感，需要采用保護(hù)裝置。 </p> <p> <br /> 江蘇質(zhì)量電機(jī)</p><p style="text-indent:25px">江蘇質(zhì)量電機(jī)</p><p> 電機(jī)（英文：Electric machinery，俗稱“馬達(dá)”）是指依據(jù)電磁感應(yīng)定律實(shí)現(xiàn)電能轉(zhuǎn)換或傳遞的一種電磁裝置。電機(jī)在電路中是用字母M（舊標(biāo)準(zhǔn)用D）表示，它的主要作用是產(chǎn)生驅(qū)動(dòng)轉(zhuǎn)矩，作為用電器或各種機(jī)械的動(dòng)力源，發(fā)電機(jī)在電路中用字母G表示，它的主要作用是利用機(jī)械能轉(zhuǎn)化為電能。 </p> <p> 直流發(fā)電機(jī)的工作原理就是把電樞線圈中感應(yīng)的交變電動(dòng)勢(shì)，靠換向器配合電刷的換向作用，使之從電刷端引出時(shí)變?yōu)橹绷麟妱?dòng)勢(shì)的原理。感應(yīng)電動(dòng)勢(shì)的方向按右手定則確定（磁感線指向手心，大拇指指向?qū)w運(yùn)動(dòng)方向，其他四指的指向就是導(dǎo)體中感應(yīng)電動(dòng)勢(shì)的方向）。江蘇質(zhì)量電機(jī)</p><p style="text-indent:25px">昆山博途自動(dòng)化科技有限公司致力于農(nóng)業(yè)，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。博途科技擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供電缸，電動(dòng)缸，力位移，壓裝機(jī)。博途科技不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。博途科技始終關(guān)注農(nóng)業(yè)行業(yè)。滿足市場(chǎng)需求，提高產(chǎn)品價(jià)值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1778241.html</p></div></div></div></div></div><div id="peby3kc" class="page-right twoColRt"><div id="dn3tgyv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8jgdkht" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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