Lifting appliance system for balancing and accurately positioning engine during lifting and unloading

The invention discloses a lifting appliance system for balance and accurate positioning of lifting and unloading of an engine. The lifting appliance system comprises a fixing frame, a bearing frame and a stand column. A lifting opening is formed in the upper portion of the stand column, and a balance lifting tool for suspending the whole engine is arranged at the bottom end of the stand column. The transmission line penetrates through the interior of the fixing frame, the bearing frame is connected to the upper end of the fixing frame, and a guide piece is arranged at the end, away from the fixing frame, of the bearing frame and used for limiting and guiding the stand column. The lifting device has the beneficial effects that the stand columns are guided through the guide pipes distributed in a trumpet shape, so that the stand columns accurately reach the positioning cavities, the whole engine accurately falls to a specific area on a conveying line, and the lifting accuracy is guaranteed; the two ropes with d