一、電動葫蘆的組成結構

電動葫蘆結構緊湊，電機(ji)軸(zhou)線垂(chui)直于卷筒軸(zhou)線的電動(dong)葫蘆(lu)采用蝸輪傳動(dong)裝置。其缺(que)點為：長度尺寸(cun)大，寬度方面尺寸(cun)大，結構粗笨(ben)，機(ji)械(xie)效(xiao)率低(di)，加工(gong)較(jiao)難等。液壓系統(tong)為雙(shuang)重控(kong)(kong)制，溢流調節閥、磁接點壓力表(biao)均可對壓力進行精確的控(kong)(kong)制。電器控(kong)(kong)制部門采用了低(di)電壓控(kong)(kong)制，增加了支配系統(tong)的安全性。

起重量一(yi)般為(wei) 0.3～80噸，起升(sheng)(sheng)高度為(wei)3～30米。由(you)電(dian)(dian)動(dong)(dong)機(ji)、傳動(dong)(dong)機(ji)構和卷(juan)筒或鏈(lian)輪(lun)組成，分為(wei)鋼絲(si)繩電(dian)(dian)動(dong)(dong)葫(hu)(hu)(hu)(hu)蘆(lu)和環鏈(lian)電(dian)(dian)動(dong)(dong)葫(hu)(hu)(hu)(hu)蘆(lu)兩(liang)種。其(qi)中環鏈(lian)電(dian)(dian)動(dong)(dong)葫(hu)(hu)(hu)(hu)蘆(lu)分為(wei)進口和國產兩(liang)種；鋼絲(si)繩電(dian)(dian)動(dong)(dong)葫(hu)(hu)(hu)(hu)蘆(lu)分單速(su)提(ti)升(sheng)(sheng)、雙速(su)提(ti)升(sheng)(sheng)；微型電(dian)(dian)動(dong)(dong)葫(hu)(hu)(hu)(hu)蘆(lu)、卷(juan)揚(yang)機(ji)、多功能提(ti)升(sheng)(sheng)機(ji)。

（一）組成結構

減速(su)器、起升電(dian)機、運行電(dian)機、斷火器、電(dian)纜滑線、卷筒(tong)裝置、吊(diao)鉤裝置、聯軸器、軟(ruan)纜電(dian)流引(yin)入器等集動(dong)力(li)與制動(dong)力(li)于一體。

起重(zhong)量：0.25t-80t

起升高度：3m-30m

工(gong)作級別：M3，M4

運行(xing)速度：20(30)m/min

起升(sheng)速度：8m/min

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（二）安裝使用

電動(dong)葫蘆一般(ban)安(an)裝在(zai)單梁起(qi)(qi)重(zhong)(zhong)機，橋(qiao)式(shi)起(qi)(qi)重(zhong)(zhong)機，門式(shi)起(qi)(qi)重(zhong)(zhong)機，懸掛起(qi)(qi)重(zhong)(zhong)機上(shang)。稍加改造(zao)，還可以(yi)作卷揚機用。因此，它是提高勞動(dong)效(xiao)率，改善勞動(dong)條件的必備(bei)機械。

（三）運行條件

環境(jing)溫(wen)度：-20℃～+40℃

工作制度：中級JC25%

重級：JC40%

當中級(ji)工作制度電動葫蘆的起重量降低30%時，即為重級(ji)工作制度JC40%的電動葫蘆。

重(zhong)級(ji)工作制度JC40%的(de)電動葫蘆是用(yong)在(zai)(zai)工作比較繁重(zhong)，負載經(jing)常在(zai)(zai)額定值或(huo)要求安(an)全系數較高的(de)情況下。

電動(dong)葫蘆結構減速器：采用(yong)(yong)三級(ji)定軸(zhou)斜(xie)齒(chi)輪(lun)轉動(dong)機構，齒(chi)輪(lun)和齒(chi)輪(lun)軸(zhou)用(yong)(yong)經過熱處理的合金鋼制成，箱(xiang)體，箱(xiang)蓋由優(you)質鑄鐵制成，裝(zhuang)配嚴密，密封良好(hao)。減速器自成一個部(bu)件，裝(zhuang)卸極為方便。

控(kong)制(zhi)箱：采用(yong)能在緊急情況下切斷(duan)主電(dian)路，并帶有上下行程保(bao)護斷(duan)火限位(wei)器的裝置(zhi)。確保(bao)了(le)電(dian)動葫蘆的安全(quan)運行。電(dian)器元(yuan)件壽命長(chang)，使(shi)用(yong)可靠(kao)。

鋼絲(si)繩(sheng)(sheng)(sheng)：起重鋼絲(si)繩(sheng)(sheng)(sheng)包括磷化涂層鋼絲(si)繩(sheng)(sheng)(sheng)、鍍鋅鋼絲(si)繩(sheng)(sheng)(sheng)和(he)不銹鋼絲(si)繩(sheng)(sheng)(sheng)，執(zhi)行(xing)現行(xing)國(guo)家(jia)標(biao)準GB8918-2006重要(yao)用(yong)途鋼絲(si)繩(sheng)(sheng)(sheng)，保證了(le)經久(jiu)耐用(yong)。

錐(zhui)形電(dian)動機(ji)：起升(sheng)電(dian)機(ji)采用(yong)較大起動力矩錐(zhui)形轉子(zi)制動異步電(dian)動機(ji)，無須(xu)外(wai)加(jia)制動器。電(dian)機(ji)負載持續率為25%，電(dian)機(ji)采用(yong)B級(ji)(ji)或(huo)F級(ji)(ji)絕緣(yuan)，電(dian)機(ji)防(fang)護等級(ji)(ji)IP44/IP54。

按鈕開關：手操(cao)作(zuo)輕巧靈(ling)便，分有繩操(cao)縱(zong)和無線遙控兩種方(fang)式。

電(dian)動葫蘆的組成部分有(you)：電(dian)機、傳動機構、卷筒(tong)和(he)鏈輪。

以電(dian)機和卷筒相互位置不同大致可分為四種(zhong)類型：

1、電(dian)機(ji)(ji)軸線(xian)垂直于(yu)卷筒軸線(xian)的電(dian)動葫蘆采用蝸(gua)輪傳動裝置(zhi)，寬度方面尺寸大， 結構(gou)笨重， 機(ji)(ji)械效率低，加工較困難，已沒有(you)廠家生產這(zhe)種結構(gou)型式的產品了。

2、電(dian)(dian)動機(ji)軸線(xian)平(ping)行于卷筒軸線(xian)的電(dian)(dian)動葫蘆，其優點(dian)為高度與長度尺(chi)寸小(xiao)。其缺點(dian)為寬度尺(chi)寸大，分組性(xing)、制造與裝(zhuang)配復雜，軌(gui)道(dao)轉彎半(ban)徑大。

3、電機(ji)(ji)裝(zhuang)在(zai)卷筒(tong)里(li)面的電動葫蘆，其(qi)優點為長度(du)尺寸小(xiao)，結構緊湊。其(qi)主要(yao)缺點為電機(ji)(ji)散熱(re)條(tiao)件差，分(fen)組性(xing)差，檢查、安裝(zhuang)、維護電機(ji)(ji)不便， 供電裝(zhuang)置復雜。

4、電(dian)機裝在卷筒(tong)外面的電(dian)動葫蘆，其優點為分組性(xing)好(hao)、通(tong)用化程度高、改變起升高度容易、安裝檢修方便。其缺點為長度尺寸(cun)大。

二、電動葫蘆卷筒外罩型號與卷筒尺寸

（一）電動葫蘆卷筒外罩型號

電動葫蘆卷筒的起重量主流的有(you)5t、1t、2t、3t、5t、10t、16t等，對應的卷筒外(wai)罩的具體型(xing)號(hao)如(ru)下(xia)：

0.5t-6m卷(juan)筒(tong)(tong)外(wai)罩(zhao)、0.5t-9m卷(juan)筒(tong)(tong)外(wai)罩(zhao)、0.5t-12m卷(juan)筒(tong)(tong)外(wai)罩(zhao)、0.5t-18m卷(juan)筒(tong)(tong)外(wai)罩(zhao);

1t-6m卷筒外(wai)(wai)罩、1t-9m卷筒外(wai)(wai)罩、1t-12m卷筒外(wai)(wai)罩、1t-18m卷筒外(wai)(wai)罩、1t-24m卷筒外(wai)(wai)罩、1t-30m卷筒外(wai)(wai)罩;

2t-6m卷(juan)(juan)筒外(wai)罩(zhao)、2t-9m卷(juan)(juan)筒外(wai)罩(zhao)、2t-12m卷(juan)(juan)筒外(wai)罩(zhao)、2t-18m卷(juan)(juan)筒外(wai)罩(zhao)、2t-24m卷(juan)(juan)筒外(wai)罩(zhao)、2t-30m卷(juan)(juan)筒外(wai)罩(zhao);

3t-6m卷筒(tong)外(wai)(wai)罩(zhao)、3t-9m卷筒(tong)外(wai)(wai)罩(zhao)、3t-12m卷筒(tong)外(wai)(wai)罩(zhao)、3t-18m卷筒(tong)外(wai)(wai)罩(zhao)、3t-24m卷筒(tong)外(wai)(wai)罩(zhao)、3t-30m卷筒(tong)外(wai)(wai)罩(zhao);

5t-6m卷筒(tong)(tong)外(wai)罩(zhao)、5t-9m卷筒(tong)(tong)外(wai)罩(zhao)、5t-12m卷筒(tong)(tong)外(wai)罩(zhao)、5t-18m卷筒(tong)(tong)外(wai)罩(zhao)、5t-24m卷筒(tong)(tong)外(wai)罩(zhao)、5t-30m卷筒(tong)(tong)外(wai)罩(zhao);

10t-9m卷(juan)筒(tong)外罩(zhao)(zhao)、10t-12m卷(juan)筒(tong)外罩(zhao)(zhao)、10t-18m卷(juan)筒(tong)外罩(zhao)(zhao)、10t-24m卷(juan)筒(tong)外罩(zhao)(zhao)、10t-30m卷(juan)筒(tong)外罩(zhao)(zhao);

16t-9m卷筒(tong)(tong)外罩、16t-12m卷筒(tong)(tong)外罩、16t-18m卷筒(tong)(tong)外罩。

下面是電動葫(hu)蘆(lu)卷筒外罩型號尺寸圖：

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（二）電動葫蘆卷筒尺寸

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