ABB電機M3BP450LA8
ABB電機M3BP450LA8
中海德(de)(福建)工業(ye)設備有限公(gong)(gong)司是一家為(wei)國(guo)內外廣大(da)用(yong)戶提供工(gong)業自(zi)(zi)動(dong)化(hua)產(chan)品的公(gong)(gong)司。多(duo)年來公(gong)(gong)司為(wei)鋼(gang)鐵廠(chang),水電(dian)廠(chang),紡織機(ji)(ji)械(xie)(xie),印(yin)刷包裝(zhuang)機(ji)(ji)械(xie)(xie),電(dian)子機(ji)(ji)械(xie)(xie),食品飲料機(ji)(ji)械(xie)(xie),制(zhi)藥機(ji)(ji)械(xie)(xie),機(ji)(ji)床,石(shi)油機(ji)(ji)械(xie)(xie),電(dian)梯(ti)和(he)自(zi)(zi)動(dong)門(men),供暖和(he)泵群控制(zhi),燃氣(qi)(qi)(qi)和(he)電(dian)熱(re)鍋爐,橡膠和(he)注塑(su)機(ji)(ji)械(xie)(xie),風電(dian),化(hua)工(gong),建材,冶金等行業用(yong)戶進行多(duo)種(zhong)形式的技(ji)術(shu)合作(zuo)和(he)服務,為(wei)用(yong)戶節能增效,改進技(ji)術(shu),提高綜合競爭力起到積極作(zuo)用(yong)。針(zhen)對(dui)客(ke)戶不同的技(ji)術(shu)應用(yong)要求(qiu),實施可行,經濟的個性定制(zhi)控制(zhi)方(fang)案,為(wei)廣大(da)客(ke)戶朋(peng)友(you)提供電(dian)氣(qi)(qi)(qi)產(chan)品、輸(shu)配電(dian)設備、再(zai)生能源設備、電(dian)氣(qi)(qi)(qi)工(gong)程、工(gong)廠(chang)自(zi)(zi)動(dong)化(hua)及驅動(dong)系統(tong)解決方(fang)案。隨著公(gong)(gong)司的發展,公(gong)(gong)司已擁有一大(da)批固定客(ke)戶,并成功(gong)實施了(le)一大(da)批項目電(dian)氣(qi)(qi)(qi)配套工(gong)程。
中(zhong)海(hai)德(福(fu)建)工業設備(bei)有限公司
聯系(xi)人:田小華
電話:0591-86290139微(wei)信同號
手機:18050188551
qq: 2881506989
公司地(di)址:福州市(shi)高新區烏龍江大道(dao)正榮財富中心SOHO3號樓8層中海(hai)德(de)公(gong)司
公(gong)司(si)官(guan)網:
步進電機選型(xing)
步(bu)(bu)進(jin)(jin)電(dian)(dian)機(ji)(ji)能將電(dian)(dian)脈沖信(xin)號轉變(bian)(bian)為角位移或(huo)線位移。在額(e)定功率(lv)范(fan)圍內(nei),電(dian)(dian)機(ji)(ji)的轉速只取(qu)決于脈沖信(xin)號的頻(pin)率(lv)和脈沖數(shu),而(er)不受(shou)負載變(bian)(bian)化(hua)的影(ying)響(xiang),加上步(bu)(bu)進(jin)(jin)電(dian)(dian)機(ji)(ji)累(lei)積誤差較(jiao)小等特點,使得在速度(du)、位置等領域(yu)用步(bu)(bu)進(jin)(jin)電(dian)(dian)機(ji)(ji)來(lai)控制變(bian)(bian)得較(jiao)為簡單。步(bu)(bu)進(jin)(jin)電(dian)(dian)機(ji)(ji)分三種,目(mu)前主要(yao)廣泛應用的是(shi)。選用步進(jin)電機時,必須(xu)注意如下廠(chang)方參數。
廠房參(can)數
1) 步(bu)距(ju)(ju)角(jiao): 收到一個步(bu)進脈沖,電機所(suo)轉動的角(jiao)度。實際步(bu)距(ju)(ju)角(jiao)和驅動器的細分(fen)數有關。一般(ban)步(bu)進電機的精度為步(bu)距(ju)(ju)角(jiao)的3-5%,不累積(ji)。
2) 相數(shu)(shu): 電機內(nei)部的線(xian)圈組數(shu)(shu)。相數(shu)(shu)不(bu)(bu)同(tong),步距角不(bu)(bu)同(tong)。如使用細(xi)分驅動器,則‘相數(shu)(shu)’沒有意義:改變(bian)細(xi)分數(shu)(shu)就可改變(bian)步距角。
3) 保(bao)持(chi)(chi)轉(zhuan)(zhuan)(zhuan)(zhuan)矩:亦(yi)稱為(wei)靜轉(zhuan)(zhuan)(zhuan)(zhuan)矩。指額定電(dian)(dian)(dian)(dian)流下轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)為(wei)零(ling)時,外力(li)(li)迫使(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)轉(zhuan)(zhuan)(zhuan)(zhuan)動所(suo)需的力(li)(li)矩。保(bao)持(chi)(chi)轉(zhuan)(zhuan)(zhuan)(zhuan)矩與(yu)(yu)驅動電(dian)(dian)(dian)(dian)壓(ya)及(ji)驅動電(dian)(dian)(dian)(dian)源等(deng)無關(guan)。步(bu)進(jin)電(dian)(dian)(dian)(dian)機(ji)(ji)在低速(su)時的力(li)(li)矩接近保(bao)持(chi)(chi)轉(zhuan)(zhuan)(zhuan)(zhuan)矩。由于步(bu)進(jin)電(dian)(dian)(dian)(dian)機(ji)(ji)的輸(shu)出力(li)(li)矩和功率隨速(su)度(du)增(zeng)大(da)而不(bu)斷(duan)變(bian)化,所(suo)以保(bao)持(chi)(chi)轉(zhuan)(zhuan)(zhuan)(zhuan)矩是衡量(liang)步(bu)進(jin)電(dian)(dian)(dian)(dian)機(ji)(ji)的參數之一(yi)。雖然保(bao)持(chi)(chi)轉(zhuan)(zhuan)(zhuan)(zhuan)矩與(yu)(yu)電(dian)(dian)(dian)(dian)磁(ci)激(ji)磁(ci)安(an)匝(za)數成正比,與(yu)(yu)定齒轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)間(jian)的氣隙有關(guan)。但過份采用(yong)減小氣隙,增(zeng)加(jia)激(ji)磁(ci)安(an)匝(za)來提(ti)高靜力(li)(li)矩是不(bu)可取的,這樣會造成電(dian)(dian)(dian)(dian)機(ji)(ji)的發熱及(ji)機(ji)(ji)械噪音。
保(bao)持轉矩(ju)的選型確定:
步進(jin)(jin)電(dian)機的(de)(de)(de)動態力(li)矩一(yi)下子很難確定,往往先確定電(dian)機的(de)(de)(de)靜(jing)力(li)矩。靜(jing)力(li)矩選擇的(de)(de)(de)依據是(shi)電(dian)機工作的(de)(de)(de)負(fu)(fu)載(zai),而(er)負(fu)(fu)載(zai)可分(fen)為慣性負(fu)(fu)載(zai)和摩擦負(fu)(fu)載(zai)二種(zhong)。單(dan)一(yi)的(de)(de)(de)慣性負(fu)(fu)載(zai)和單(dan)一(yi)的(de)(de)(de)摩擦負(fu)(fu)載(zai)是(shi)不存在的(de)(de)(de)。階越(突然)起動時(shi)(一(yi)般由(you)低(di)速)時(shi)二種(zhong)負(fu)(fu)載(zai)均(jun)要(yao)考(kao)慮(lv),加速(斜坡)起動時(shi)主(zhu)要(yao)考(kao)慮(lv)慣性負(fu)(fu)載(zai),恒速運行進(jin)(jin)只要(yao)考(kao)慮(lv)摩擦負(fu)(fu)載(zai)。一(yi)般情(qing)況下,保持(chi)轉矩應為摩擦負(fu)(fu)載(zai)的(de)(de)(de)2-3倍內好(hao),保持(chi)轉(zhuan)矩(ju)一旦選定,電機的機座及長度(du)便能確(que)定下來(lai)。
4) 額(e)(e)定相電(dian)流(liu)(liu):指電(dian)機實現(xian)各項額(e)(e)定廠方參數(shu)時的每相(每個(ge)線(xian)圈)電(dian)流(liu)(liu)。實驗證(zheng)明高于和低于該(gai)電(dian)流(liu)(liu)均可造(zao)成電(dian)機工作時某些(xie)指標超標而同(tong)時另一些(xie)指標不達標。
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