起重機械類型多種多樣，不論設備載重量大與小，內部結構是復雜還是簡單，都可以分為三大部分：一為鋼結構，相當于人的骨格，在起重機中起支承作用：二為起升結構，包括鏈條、吊鉤、鋼絲繩等，相當于人的胳膊腿，在電機的控制下做出各種動作;三為控制部分，電氣控制系統相當于人的神經系統，液壓控制相當于人體血液循環系統，用來作為控制動作用。專門在建筑行業、化工行業吊運大型重物的鏈條電動葫蘆也不例外，它同(tong)樣離不開上述的三(san)種結構。

1、鋼結構特點

鋼結(jie)構均為由(you)雙(shuang)根主(zhu)梁(liang)和(he)兩根端梁(liang)，通(tong)過(guo)減(jian)載(zai)凸緣十螺栓連接而(er)成一雙(shuang)梁(liang)形橋架，用來支承吊載(zai)，他必(bi)須有足(zu)夠(gou)的強度(du)、剛度(du)和(he)穩(wen)定性。

由于起(qi)重(zhong)量不(bu)大跨度(du)(du)又(you)小(xiao)，主(zhu)梁(liang)多采用H鋼型(xing)鋼材，H鋼垂直和水平剛度(du)(du)(剛性)均(jun)好。H鋼翼緣厚度(du)(du)大局部穩定性又(you)很(hen)好，又(you)因雙梁(liang)橋架為簡支梁(liang)靜(jing)定結(jie)構，整機穩定性也很(hen)好。強度(du)(du)是專(zhuan)用起(qi)重(zhong)機必(bi)須重(zhong)點考慮的(de)問題，特別是因為(生產(chan)線上專(zhuan)用起(qi)重(zhong)設備)使用頻繁利用等(deng)級高、載荷(he)狀態重(zhong)，所以(yi)疲勞強度(du)(du)更(geng)應(ying)引起(qi)重(zhong)視(不(bu)可(ke)回避)，疲勞破壞(huai)將是最大的(de)隱患(huan)。

2、機構特點

一(yi)(yi)般(ban)橋式類型(xing)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)機(ji)(ji)(ji)(ji)(ji)有(you)二種機(ji)(ji)(ji)(ji)(ji)構，即起(qi)(qi)(qi)(qi)(qi)(qi)(qi)升機(ji)(ji)(ji)(ji)(ji)構和(he)(he)運(yun)行(xing)機(ji)(ji)(ji)(ji)(ji)構，運(yun)行(xing)機(ji)(ji)(ji)(ji)(ji)構又分橫(heng)行(xing)機(ji)(ji)(ji)(ji)(ji)構和(he)(he)縱行(xing)機(ji)(ji)(ji)(ji)(ji)構，即共有(you)上(shang)述(shu)三(san)個(ge)機(ji)(ji)(ji)(ji)(ji)構。加(jia)氣混凝土(tu)生產(chan)線上(shang)使(shi)用(yong)(yong)(yong)的(de)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)設(she)備(bei)，僅有(you)二個(ge)機(ji)(ji)(ji)(ji)(ji)構，即起(qi)(qi)(qi)(qi)(qi)(qi)(qi)升機(ji)(ji)(ji)(ji)(ji)構和(he)(he)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)機(ji)(ji)(ji)(ji)(ji)運(yun)行(xing)機(ji)(ji)(ji)(ji)(ji)構，這是(shi)專(zhuan)(zhuan)用(yong)(yong)(yong)的(de)緣故。生產(chan)線上(shang)專(zhuan)(zhuan)用(yong)(yong)(yong)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)設(she)備(bei)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)升機(ji)(ji)(ji)(ji)(ji)構是(shi)由驅(qu)動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)(zhi)電動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)、制(zhi)動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)(zhi)制(zhi)動(dong)(dong)(dong)器和(he)(he)傳動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)(zhi)減(jian)速(su)器，三(san)者合(he)為一(yi)(yi)體的(de)“三(san)合(he)一(yi)(yi)”型(xing)驅(qu)動(dong)(dong)(dong)體，與取物纏(chan)(chan)繞裝(zhuang)置(zhi)(zhi)(zhi)組成。其(qi)(qi)中取物裝(zhuang)置(zhi)(zhi)(zhi)為專(zhuan)(zhuan)用(yong)(yong)(yong)吊(diao)夾具，纏(chan)(chan)繞系(xi)統除了網(wang)片起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)機(ji)(ji)(ji)(ji)(ji)、拔釬(han)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)機(ji)(ji)(ji)(ji)(ji)采(cai)用(yong)(yong)(yong)鏈條鏈輪纏(chan)(chan)繞外，其(qi)(qi)他專(zhuan)(zhuan)用(yong)(yong)(yong)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)機(ji)(ji)(ji)(ji)(ji)均采(cai)用(yong)(yong)(yong)鋼絲繩(sheng)卷(juan)筒(tong)纏(chan)(chan)繞形式。為保證起(qi)(qi)(qi)(qi)(qi)(qi)(qi)升吊(diao)運(yun)長方體吊(diao)載的(de)穩定性，而(er)采(cai)用(yong)(yong)(yong)結構緊(jin)湊輕巧的(de)集中驅(qu)動(dong)(dong)(dong)(一(yi)(yi)個(ge)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)升驅(qu)動(dong)(dong)(dong)體)雙出(chu)繩(sheng)兩吊(diao)點的(de)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)升纏(chan)(chan)繞系(xi)統，是(shi)專(zhuan)(zhuan)用(yong)(yong)(yong)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)重(zhong)設(she)備(bei)起(qi)(qi)(qi)(qi)(qi)(qi)(qi)升機(ji)(ji)(ji)(ji)(ji)構突出(chu)特點之(zhi)一(yi)(yi)。

3、控制特點

鏈條電動葫蘆為了滿足生產線工藝流程(cheng)需求(qiu)，對于不同(tong)的(de)載重狀態，不同(tong)的(de)運輸要求(qiu)等，都(dou)可以采用電動(dong)(dong)自動(dong)(dong)化控制技術等多種綜(zong)合控制技術。