一、電動葫蘆的組成結構

電動葫蘆結構(gou)緊湊，電(dian)機軸(zhou)線(xian)垂(chui)直于(yu)卷(juan)筒軸(zhou)線(xian)的(de)電(dian)動葫蘆采用(yong)蝸輪傳動裝(zhuang)置。其缺點為：長(chang)度尺寸大，寬度方(fang)面尺寸大，結構(gou)粗(cu)笨，機械(xie)效率低，加工較難等。液壓(ya)系(xi)統為雙重控(kong)(kong)制，溢流調(diao)節閥、磁(ci)接點壓(ya)力表均可對壓(ya)力進(jin)行精確的(de)控(kong)(kong)制。電(dian)器(qi)控(kong)(kong)制部門采用(yong)了低電(dian)壓(ya)控(kong)(kong)制，增加了支配系(xi)統的(de)安全性。

起重量一(yi)般(ban)為(wei) 0.3～80噸，起升高度為(wei)3～30米。由電(dian)(dian)動機(ji)(ji)(ji)、傳動機(ji)(ji)(ji)構(gou)和(he)卷筒或鏈(lian)輪組(zu)成，分為(wei)鋼絲繩電(dian)(dian)動葫(hu)(hu)(hu)蘆(lu)(lu)和(he)環(huan)鏈(lian)電(dian)(dian)動葫(hu)(hu)(hu)蘆(lu)(lu)兩種。其(qi)中環(huan)鏈(lian)電(dian)(dian)動葫(hu)(hu)(hu)蘆(lu)(lu)分為(wei)進口和(he)國(guo)產兩種；鋼絲繩電(dian)(dian)動葫(hu)(hu)(hu)蘆(lu)(lu)分單(dan)速(su)提升、雙速(su)提升；微型電(dian)(dian)動葫(hu)(hu)(hu)蘆(lu)(lu)、卷揚機(ji)(ji)(ji)、多功(gong)能(neng)提升機(ji)(ji)(ji)。

（一）組成結構

減速器(qi)、起升電(dian)機、運行(xing)電(dian)機、斷(duan)火器(qi)、電(dian)纜滑(hua)線、卷筒裝置(zhi)、吊鉤裝置(zhi)、聯軸器(qi)、軟纜電(dian)流引(yin)入(ru)器(qi)等集動(dong)力與制(zhi)動(dong)力于一體。

起重量(liang)：0.25t-80t

起升高(gao)度(du)：3m-30m

工作級(ji)別(bie)：M3，M4

運行(xing)速(su)度：20(30)m/min

起升速度：8m/min

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（二）安裝使用

電動(dong)(dong)葫蘆一般安裝在(zai)單梁(liang)起(qi)重(zhong)機(ji)(ji)，橋式起(qi)重(zhong)機(ji)(ji)，門式起(qi)重(zhong)機(ji)(ji)，懸掛起(qi)重(zhong)機(ji)(ji)上。稍加改造，還可(ke)以作卷揚(yang)機(ji)(ji)用。因此(ci)，它是提高勞動(dong)(dong)效率，改善勞動(dong)(dong)條件的必(bi)備機(ji)(ji)械(xie)。

（三）運行條件

環境溫度(du)：-20℃～+40℃

工作制度：中級(ji)JC25%

重(zhong)級：JC40%

當中級工作制度(du)電動葫蘆(lu)的起重量降低(di)30%時(shi)，即為重級工作制度(du)JC40%的電動葫蘆(lu)。

重級工作制度JC40%的(de)電動葫(hu)蘆是用在工作比較繁重，負載經常在額定值(zhi)或要求安全系數較高的(de)情況下(xia)。

電動葫蘆結構減速器：采用三級(ji)定軸斜(xie)齒輪轉動機構，齒輪和齒輪軸用經(jing)過熱(re)處理的合(he)金鋼制(zhi)成，箱(xiang)體，箱(xiang)蓋由優質鑄鐵制(zhi)成，裝配嚴密，密封良好。減速器自成一(yi)個(ge)部件，裝卸極為方便(bian)。

控制箱：采用(yong)能在緊(jin)急(ji)情況下切斷主電(dian)路，并帶有上下行(xing)程保(bao)護斷火(huo)限位器的裝置。確(que)保(bao)了電(dian)動(dong)葫蘆的安(an)全(quan)運(yun)行(xing)。電(dian)器元件壽(shou)命長，使用(yong)可靠。

鋼(gang)絲(si)繩：起重(zhong)鋼(gang)絲(si)繩包括磷化涂層鋼(gang)絲(si)繩、鍍(du)鋅鋼(gang)絲(si)繩和不銹鋼(gang)絲(si)繩，執行(xing)現行(xing)國家標準(zhun)GB8918-2006重(zhong)要用(yong)途鋼(gang)絲(si)繩，保證(zheng)了經久耐用(yong)。

錐(zhui)形電(dian)(dian)動(dong)機：起升電(dian)(dian)機采用(yong)較大起動(dong)力矩錐(zhui)形轉子(zi)制(zhi)動(dong)異步電(dian)(dian)動(dong)機，無須外加(jia)制(zhi)動(dong)器。電(dian)(dian)機負載(zai)持續率為(wei)25%，電(dian)(dian)機采用(yong)B級(ji)或F級(ji)絕緣，電(dian)(dian)機防護等級(ji)IP44/IP54。

按鈕開(kai)關：手(shou)操(cao)作(zuo)輕巧靈便，分有(you)繩操(cao)縱和無線遙控兩種方式。

電動葫蘆(lu)的(de)組成部分有：電機、傳(chuan)動機構、卷筒和鏈輪。

以電機和(he)卷(juan)筒相互位(wei)置不(bu)同(tong)大致(zhi)可分為四種(zhong)類(lei)型：

1、電機(ji)軸(zhou)線垂直于卷(juan)筒軸(zhou)線的電動葫蘆(lu)采(cai)用(yong)蝸輪傳動裝(zhuang)置，寬(kuan)度方面尺(chi)寸大， 結構(gou)笨重， 機(ji)械效率(lv)低，加(jia)工較困難，已(yi)沒有廠家生產這種(zhong)結構(gou)型式的產品了。

2、電(dian)動機軸線(xian)平行(xing)于卷筒軸線(xian)的電(dian)動葫蘆，其(qi)優點為(wei)高度(du)與長(chang)度(du)尺(chi)寸小。其(qi)缺點為(wei)寬度(du)尺(chi)寸大(da)，分組性、制造與裝配(pei)復雜，軌(gui)道轉(zhuan)彎半徑大(da)。

3、電(dian)機(ji)裝在卷筒里面(mian)的電(dian)動葫(hu)蘆，其(qi)優點為長度(du)尺寸小，結構(gou)緊湊。其(qi)主要缺點為電(dian)機(ji)散熱(re)條件差，分(fen)組(zu)性差，檢查、安裝、維護電(dian)機(ji)不便， 供(gong)電(dian)裝置復雜。

4、電機裝在(zai)卷筒(tong)外面的電動(dong)葫(hu)蘆(lu)，其優(you)點為分組性好、通用化程度(du)高(gao)、改變起升高(gao)度(du)容易(yi)、安裝檢修方便。其缺點為長度(du)尺寸大。

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(juan)筒(tong)的(de)起重量主流的(de)有5t、1t、2t、3t、5t、10t、16t等(deng)，對應的(de)卷(juan)筒(tong)外罩的(de)具體(ti)型號如(ru)下(xia)：

0.5t-6m卷筒(tong)外罩、0.5t-9m卷筒(tong)外罩、0.5t-12m卷筒(tong)外罩、0.5t-18m卷筒(tong)外罩;

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

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

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

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

10t-9m卷(juan)筒(tong)(tong)外(wai)(wai)(wai)罩、10t-12m卷(juan)筒(tong)(tong)外(wai)(wai)(wai)罩、10t-18m卷(juan)筒(tong)(tong)外(wai)(wai)(wai)罩、10t-24m卷(juan)筒(tong)(tong)外(wai)(wai)(wai)罩、10t-30m卷(juan)筒(tong)(tong)外(wai)(wai)(wai)罩;

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

下面是(shi)電(dian)動葫蘆卷筒(tong)外(wai)罩型號尺寸(cun)圖：

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（二）電動葫蘆卷筒尺寸

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