电动葫芦是一种特起重设备，安装在天车、龙门吊之上，电动葫芦具有体积小，自重轻，操作简单，使用方便等特点，用于工矿企业，仓储，码头等场所。
　　电(dian)(dian)动(dong)葫芦(lu)结构紧凑，电(dian)(dian)机轴线(xian)垂(chui)直(zhi)于(yu)卷筒轴线(xian)的电(dian)(dian)动(dong)葫芦(lu)采(cai)用蜗轮(lun)传动(dong)装(zhuang)置(zhi)。其缺(que)点为：长度(du)尺寸大(da)，宽度(du)方面尺寸大(da)，结构粗笨(ben)，机械(xie)效率低，加(jia)工较难等。液压(ya)系(xi)统为双重(zhong)控(kong)(kong)制(zhi)，溢(yi)流(liu)调节阀(fa)、磁接(jie)点压(ya)力表均可对压(ya)力进行精确(que)的控(kong)(kong)制(zhi)。电(dian)(dian)器控(kong)(kong)制(zhi)部(bu)门采(cai)用了低电(dian)(dian)压(ya)控(kong)(kong)制(zhi)，增加(jia)了支配系(xi)统的安全性(xing)。

　　The electric hoist is a special lifting equipment, installed on the crown block and gantry crane. The electric hoist has the characteristics of small size, light weight, simple operation and convenient use, and is used in industrial and mining enterprises, warehouses, docks and other places.
　　The electric hoist has a compact structure. The electric hoist whose motor axis is perpendicular to the drum axis adopts worm gear transmission device. Its disadvantages are: large size in length, large size in width, bulky structure, low mechanical efficiency, and difficult processing. The hydraulic system is under dual control. The overflow regulating valve and magnetic contact pressure gauge can accurately control the pressure. The electrical control department adopts low voltage control, which increases the safety of the control system.