目前生產的CD型鋼絲繩電動葫蘆起重量分別為0.5、1t、2t、3t、5t、10t。該系列產品均采用ZZ型錐形轉子電動機，即轉子與定于呈錐形，其結構如圖7-3所示。當錠子通電后，產生磁場，磁力線垂直于轉子表面，于是產生一個軸向分力，使轉子3客服彈簧力，向錐形小端方向軸向移動，轉子被吸進定子，并使錐形制動器7脫離后蓋6，允許轉子自由轉動。當初斷電源時，在被壓縮彈簧4的作用下，轉子向方向軸向移動，使錐形制動圈緊剎于后蓋上，實現轉子停車制動。

錐(zhui)形電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機制(zhi)(zhi)(zhi)(zhi)造工藝(yi)較為發雜。一些工廠常采用磅(bang)磁(ci)(ci)式電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機來代替錐(zhui)形電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機。磅(bang)磁(ci)(ci)式電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機轉(zhuan)子和錠子都是普通圓柱形，在轉(zhuan)子端面裝(zhuang)有磁(ci)(ci)板環（即銜鐵盤），當(dang)電(dian)(dian)(dian)流(liu)接通后，瓷板環與(yu)磁(ci)(ci)盤圈（即制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)器(qi)）相互(hu)吸引(yin)產生軸向拉(la)力(li)(li)，克服(fu)彈簧(huang)阻力(li)(li)，使(shi)錐(zhui)形制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)圈和后蓋分開(kai)，電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機的(de)轉(zhuan)子可(ke)自行運轉(zhuan)，不受制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)；斷電(dian)(dian)(dian)后錐(zhui)形制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)圈在彈簧(huang)的(de)作用下(xia)，與(yu)后蓋緊合對(dui)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機進行制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)。