電(dian)動葫蘆是一(yi)種起(qi)重(zhong)量較小，結構簡單的(de)起(qi)重(zhong)機構，它用于工(gong)礦企(qi)業中(zhong)進行小型設(she)備的(de)吊(diao)運、安裝(zhuang)與修(xiu)理工(gong)作；由于其體積(ji)小，占用廠房面積(ji)較少，使用靈活(huo)方便。

目前生產的CD型鋼絲繩電動葫蘆起(qi)重(zhong)量(liang)分別為0.5、1t、2t、3t、5t、10t。該系列產品均采用ZZ型錐(zhui)(zhui)形(xing)(xing)(xing)轉(zhuan)子電(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)，即轉(zhuan)子與定(ding)于(yu)(yu)呈錐(zhui)(zhui)形(xing)(xing)(xing)，其結構如圖7-3所示(shi)。當錠子通(tong)電(dian)(dian)后(hou)，產生(sheng)磁(ci)(ci)(ci)場，磁(ci)(ci)(ci)力(li)(li)線(xian)垂直(zhi)于(yu)(yu)轉(zhuan)子表面，于(yu)(yu)是(shi)產生(sheng)一個軸向(xiang)分力(li)(li)，使轉(zhuan)子3客(ke)服(fu)彈(dan)簧(huang)力(li)(li)，向(xiang)錐(zhui)(zhui)形(xing)(xing)(xing)小端方向(xiang)軸向(xiang)移(yi)動(dong)(dong)(dong)(dong)，轉(zhuan)子被吸進定(ding)子，并使錐(zhui)(zhui)形(xing)(xing)(xing)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)器7脫(tuo)離(li)后(hou)蓋(gai)6，允許轉(zhuan)子自(zi)由轉(zhuan)動(dong)(dong)(dong)(dong)。當初斷電(dian)(dian)源時，在被壓縮彈(dan)簧(huang)4的作(zuo)用下，轉(zhuan)子向(xiang)方向(xiang)軸向(xiang)移(yi)動(dong)(dong)(dong)(dong)，使錐(zhui)(zhui)形(xing)(xing)(xing)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)圈(quan)緊剎于(yu)(yu)后(hou)蓋(gai)上，實現轉(zhuan)子停車(che)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)。                                                                                                                                                                           錐(zhui)(zhui)形(xing)(xing)(xing)電(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)制(zhi)(zhi)(zhi)造工藝較為發雜。一些工廠常采用磅磁(ci)(ci)(ci)式(shi)電(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)來代替錐(zhui)(zhui)形(xing)(xing)(xing)電(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)。磅磁(ci)(ci)(ci)式(shi)電(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)轉(zhuan)子和錠子都是(shi)普通(tong)圓柱形(xing)(xing)(xing)，在轉(zhuan)子端面裝有磁(ci)(ci)(ci)板(ban)環(huan)（即銜(xian)鐵盤），當電(dian)(dian)流(liu)接通(tong)后(hou)，瓷板(ban)環(huan)與磁(ci)(ci)(ci)盤圈(quan)（即制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)器）相互吸引產生(sheng)軸向(xiang)拉力(li)(li)，克服(fu)彈(dan)簧(huang)阻力(li)(li)，使錐(zhui)(zhui)形(xing)(xing)(xing)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)圈(quan)和后(hou)蓋(gai)分開，電(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)的轉(zhuan)子可自(zi)行運轉(zhuan)，不受制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)；斷電(dian)(dian)后(hou)錐(zhui)(zhui)形(xing)(xing)(xing)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)圈(quan)在彈(dan)簧(huang)的作(zuo)用下，與后(hou)蓋(gai)緊合對電(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)進行制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)。