手(shou)(shou)動(dong)卷(juan)(juan)揚(yang)機(ji)(ji)(ji)又叫(jiao)手(shou)(shou)搖絞車，是(shi)(shi)(shi)指以人力(li)作為動(dong)力(li)，通(tong)過驅動(dong)裝置使卷(juan)(juan)筒回轉的(de)(de)卷(juan)(juan)揚(yang)機(ji)(ji)(ji)。手(shou)(shou)動(dong)卷(juan)(juan)揚(yang)機(ji)(ji)(ji)就是(shi)(shi)(shi)一個經(jing)常用(yong)(yong)得到得起重工(gong)具。 手(shou)(shou)動(dong)卷(juan)(juan)揚(yang)機(ji)(ji)(ji)是(shi)(shi)(shi)水平拖(tuo)拽、垂(chui)體提升(sheng)的(de)(de)理想的(de)(de)起重工(gong)具，廣泛(fan)應用(yong)(yong)于車輛、船舶、碼頭、倉庫、野外等(deng)場(chang)合。可(ke)用(yong)(yong)鋼絞線、尼龍彩(cai)帶。手(shou)(shou)動(dong)卷(juan)(juan)揚(yang)機(ji)(ji)(ji)質量(liang)可(ke)靠，結(jie)構(gou)(gou)科(ke)學、耐用(yong)(yong)，卷(juan)(juan)揚(yang)機(ji)(ji)(ji)主要(yao)用(yong)(yong)提升(sheng)、牽移、裝卸重物，如各種(zhong)大中型(xing)砼、鋼結(jie)構(gou)(gou)及機(ji)(ji)(ji)械設備的(de)(de)安裝和移動(dong)，適用(yong)(yong)于建(jian)筑(zhu)(zhu)安裝公(gong)司、廠礦(kuang)的(de)(de)土木(mu)建(jian)筑(zhu)(zhu)工(gong)程及橋梁施工(gong)。特別適用(yong)(yong)于配套(tao)起重機(ji)(ji)(ji)主卷(juan)(juan)揚(yang)機(ji)(ji)(ji)起重用(yong)(yong)。
手(shou)動(dong)(dong)(dong)卷(juan)(juan)揚機(ji)(ji)(ji)的工(gong)(gong)作原(yuan)理是把(ba)電能(neng)(neng)經過電動(dong)(dong)(dong)機(ji)(ji)(ji)轉(zhuan)換為(wei)機(ji)(ji)(ji)械能(neng)(neng)bai，即電動(dong)(dong)(dong)機(ji)(ji)(ji)的轉(zhuan)子轉(zhuan)動(dong)(dong)(dong)輸出(chu)，經三角(jiao)帶、軸、齒輪減(jian)速(su)后再帶動(dong)(dong)(dong)卷(juan)(juan)筒旋轉(zhuan)。卷(juan)(juan)筒卷(juan)(juan)繞(rao)鋼絲繩并通(tong)過滑(hua)輪組(zu)，使起重機(ji)(ji)(ji)吊鉤提(ti)升或落下載(zai)荷Q，把(ba)機(ji)(ji)(ji)械能(neng)(neng)轉(zhuan)變為(wei)機(ji)(ji)(ji)械功，完成(cheng)載(zai)荷的垂直(zhi)運輸裝(zhuang)卸(xie)工(gong)(gong)作。電動(dong)(dong)(dong)卷(juan)(juan)揚機(ji)(ji)(ji)構造由電動(dong)(dong)(dong)機(ji)(ji)(ji)、聯軸節(jie)、制動(dong)(dong)(dong)器、齒輪箱和卷(juan)(juan)筒組(zu)成(cheng)，共同安裝(zhuang)在機(ji)(ji)(ji)架(jia)上。
電動卷(juan)揚機又(you)可稱(cheng)為電動葫蘆(lu)。對于起升高度和裝卸量大，工作繁忙的情況下，要求調速(su)性能(neng)好，特別(bie)要空鉤能(neng)快速(su)下降。對安裝就位或敏感的物料，要能(neng)以微動速(su)度下降。
卷揚機(ji)(ji)(ji)包(bao)括JK快速(su)卷揚機(ji)(ji)(ji)和JM慢(man)速(su)卷揚機(ji)(ji)(ji)，僅能在(zai)地上使用，它(ta)以電動機(ji)(ji)(ji)為(wei)動力(li)，經彈性聯軸節，三級封閉(bi)式齒輪(lun)減速(su)器，牙嵌式聯軸節驅動卷筒，采(cai)用電磁制動。
該產品通用性高、結構緊湊、體積小、重量輕、起重大、使用轉移方便，被廣泛應用于建筑、水利工程、林業、礦山、碼頭等的物料升降或平拖，還可作現代化電控自動作業線的配套設備。
