103F7851-8211
103F7851-8211
103F7851-8211
廈門伊詩(shī)圖電氣有限公司(Xiamen EASTOUR Electric Co.,Ltd.)坐落于高素質(zhì)、高顏值的創(chuàng)新創(chuàng)業(yè)之城——廈門,地理位置優(yōu)越、交通便利、資金充裕、實(shí)力雄厚。
廈門伊詩(shī)圖電氣有限公司是一家集設(shè)計(jì)研發(fā)、生產(chǎn)組裝及銷售服務(wù)為一體的高新科技企業(yè)。成立至今,一直致力于為全國(guó)用戶提供自動(dòng)化傳動(dòng)類產(chǎn)品及服務(wù)的整體解決方案。
手機(jī)/微信:181-2071-6891
qq:2586371817
主營(yíng)產(chǎn)品:
1、行星減速機(jī):標(biāo)準(zhǔn)直齒系列、精密斜齒系列、機(jī)械手專用減速機(jī);
2、90度直角減速機(jī):?jiǎn)纬鲚S系列、雙出軸系列、中空軸系列;
3、中空旋轉(zhuǎn)平臺(tái):步進(jìn)電機(jī)系列、伺服電機(jī)系列;
4、直流無(wú)刷電機(jī):無(wú)刷直流電機(jī)+普通齒輪減速箱或行星減速機(jī)+高低壓驅(qū)動(dòng)器;
5、直流伺服電機(jī):電壓12V-96V可選,功率60W-600W可選,配套行星減速機(jī)及驅(qū)動(dòng)器;
6、AGV專用:AGV直流無(wú)刷電機(jī)、AGV直流伺服電機(jī),配套普通齒輪減速箱或行星減速機(jī);
7、步進(jìn)電機(jī):2相步進(jìn)電機(jī)、3相步進(jìn)電機(jī)、5相步進(jìn)電機(jī)、同步馬達(dá)、絲桿步進(jìn)電機(jī)、閉環(huán)步進(jìn)電機(jī)、減速齒輪箱步進(jìn)電機(jī)、IP65防水步進(jìn)電機(jī);
8、AC小馬達(dá):6-250W定速電機(jī)、6-250W調(diào)速電機(jī)、3-90W轉(zhuǎn)矩電機(jī)、6-250W可逆電機(jī)、6-250W可逆調(diào)速電機(jī)、6-250W電磁剎車電機(jī);
9、中型減速電機(jī):0.1-5.5kW臥式減速電機(jī)、0.1-5.5kW立式減速電機(jī);
10、變頻器:矢量型、通用型、經(jīng)濟(jì)型、多功能型;
11、諧波減速器;
12、伺服電動(dòng)缸;
13、蝸輪蝸桿減速機(jī);
14、泰映電機(jī)、泰映馬達(dá)、TROY電機(jī)、AGV電機(jī)。
伊詩(shī)圖電氣秉承“科技創(chuàng)新、精益求精、信譽(yù)至上、真誠(chéng)服務(wù)”的經(jīng)營(yíng)理念。以客戶需求為中心,為客戶提供經(jīng)濟(jì)、可靠的設(shè)備傳動(dòng)方案。
廈庇五洲客,門納萬(wàn)頃濤,伊詩(shī)圖電氣熱忱歡迎廣大新老客戶蒞臨指導(dǎo)、攜手合作、共謀發(fā)展!
力矩電動(dòng)機(jī)重要性能指標(biāo)之一是力矩波動(dòng),這是因?yàn)樗ǔ_\(yùn)行在低速狀態(tài)或長(zhǎng)期堵轉(zhuǎn),力矩波動(dòng)將導(dǎo)致運(yùn)行不平穩(wěn)或不穩(wěn)定。力矩波動(dòng)系數(shù)是指轉(zhuǎn)子處于不同位置時(shí),堵轉(zhuǎn)力矩的峰值與平均值之差相對(duì)平均值的百分?jǐn)?shù)。力矩波動(dòng)的主要原因是由于繞組元件數(shù)、換向器片數(shù)有限使反電勢(shì)產(chǎn)生波動(dòng),電樞鐵心存在齒槽引起磁場(chǎng)脈動(dòng),以及換向器表面不平使電刷與換向器之間的滑動(dòng)摩擦力矩有所變化等。 結(jié)構(gòu)上采用扁平式電樞,可增多電樞槽數(shù)、元件數(shù)和換向器片數(shù);適當(dāng)加大電機(jī)的氣隙,采用磁性槽楔、斜槽等措施,都可使力矩波動(dòng)減小。 2. 機(jī)械特性和調(diào)節(jié)特性的線性度 在前面所述的直流電動(dòng)機(jī)機(jī)械特性和調(diào)節(jié)特性是在勵(lì)磁磁通不變的條件下得出的。事實(shí)上,與直流發(fā)電機(jī)一樣,電動(dòng)機(jī)中同樣也存在著電樞反應(yīng)的去磁作用,而且它的去磁程度與電樞電流或負(fù)載轉(zhuǎn)矩有關(guān),它導(dǎo)致機(jī)械特性和調(diào)節(jié)特性的非線性。為了提高特性的線性度,在設(shè)計(jì)直流力矩電動(dòng)機(jī)時(shí),把磁路設(shè)計(jì)成高度飽和,并采取增大空氣隙等方法,使電樞反應(yīng)的影響顯著減小。 3. 響應(yīng)迅速,動(dòng)態(tài)特性好 由 1.8 節(jié)可知,決定過(guò)渡過(guò)程快慢的兩個(gè)時(shí)間常數(shù)是機(jī)電時(shí)間常數(shù)τj和電磁時(shí)間常數(shù)τd。雖然直流力矩電動(dòng)機(jī)電樞直徑大,轉(zhuǎn)動(dòng)慣量大,但由于它的堵轉(zhuǎn)力矩很大,空載轉(zhuǎn)速很低,力矩電動(dòng)機(jī)的機(jī)電時(shí)間常數(shù)還是比較小的,這樣,其電磁時(shí)間常數(shù)τd相對(duì)變大。已知τd=La/Ra,其中電樞繞組電感La主要取決于電樞繞組的電樞反應(yīng)磁鏈??梢宰C明,增加極對(duì)數(shù)可以減少電樞反應(yīng)磁鏈。 所以,為減小電磁時(shí)間常數(shù),提高力矩電機(jī)的快速反應(yīng)能力,采用了多極結(jié)構(gòu),如圖 1 - 28 所示。此外,力矩電動(dòng)機(jī)的餅式結(jié)構(gòu)有利于將電動(dòng)機(jī)的軸直接套在短而粗的負(fù)載軸上,從而大大提高了系統(tǒng)的耦合剛度。
因?yàn)殡姌写艌?chǎng)對(duì)主磁場(chǎng)的去磁作用隨電樞電流的增加而增加,故而峰值堵轉(zhuǎn)電流是受磁鋼去磁限制的最大電樞電流。與其相對(duì)應(yīng)的堵轉(zhuǎn)轉(zhuǎn)矩稱為峰值堵轉(zhuǎn)轉(zhuǎn)矩,它是力矩電機(jī)最大的堵轉(zhuǎn)轉(zhuǎn)矩。 需要指出,由于電機(jī)定子上裝有永久磁鋼,所以在拆裝電機(jī)時(shí),務(wù)必使定子磁路處于短路狀態(tài)。即取出轉(zhuǎn)子之前,應(yīng)先用短路環(huán)封住定子,再取出轉(zhuǎn)子,否則, 永久磁鋼將失磁。如果使用中發(fā)生電樞電流超過(guò)峰值堵轉(zhuǎn)電流,使電機(jī)去磁,并導(dǎo)致堵轉(zhuǎn)轉(zhuǎn)矩不足時(shí),則必須重新充磁。
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