群吊葫芦的出现也是起重机械的一次重大革新，群吊葫芦也就是我们常说的爬架电动葫芦、焊罐电动葫芦和DHP慢速环链电动提升机，其额定起重量从5吨-20吨的都可以生产，但是一般7.5吨的群吊只用于建筑爬架，而其他吨位的群吊则用于油罐焊罐的提升。 群吊电动葫芦主要通过电机带动行星齿轮、行星齿轮通过行星架带动5尺长轴，5尺长轴带动片齿轮、4齿短轴和花键孔齿轮。这样，装置在花键孔齿轮上的起重链轮就带动起重链条，从而平稳地提升重物。群吊电动葫芦在负载状态下是靠盘式电机制动。1、使用前的保养：使用前要详细的检查一下葫芦是否有异常，避免在使用的时候发生故障，造成损失。 Group of the emergence of the crane hoist and lifting machinery, a major innovation of crane hoist is we often say climbing frame, welding tank electric hoist electric hoist and DHP were studied.the optimum processing slow link chain electric hoist, the rated lifting weight from the can production of 5 tons to 20 tons, but generally 7.5 tons of crane is used only for building up, while the other group of tonnage crane used for oil tank welding can improve. Group of crane electric hoist mainly by motor drives the planet gear, planetary gear by planetary drive 5 feet long axis, 5 feet long axis gear, 4 teeth short axis and the spline gear. In this way, the device on the spline gear of lifting chain wheel drives the lifting chain, so as to smoothly promote the weight. Group of crane electric hoist under load condition is to rely on disc brake motor. 1, before using the maintenance: use before a detailed check the gourd whether there are abnormal, avoid failure occurs when using, causing damage. 2、使用中的保养：群吊葫芦要做好防雨、防尘措施，链条上沾的灰浆焊渣等杂物要及时清除，链条定期刷油（废机油就可以），增加其使用寿命！ 2, the use of maintenance: group of crane hoist rainproof, dustproof measures is to work on your chain of mortar welding slags sundry to keep clear of in time, the chain regular brushing oil (waste oil can be), increase its service life! 3、使用后的保养：工地用完撤回来后要先清理葫芦上的杂物，将有故障的葫芦分拣出来进行检修，没有故障的葫芦齿轮上涂润滑油，链条刷油后将链条整理好放在干燥的地方保存。 3, after use, maintenance, construction site back to finished to clean up the gourd on the sundry, there will be a failure of the gourd sorting out for maintenance, there is no fault on the hoist gear of lubricating oil, tidy up the chain chain after brushing oil in a dry place preservation.