The lifting machinery is to reduce the labor of stupid physical strength, improve operational efficiency, and realize the lifting transportation equipment for production safety. In the production and distribution of materials of various departments of the national economy, hand -streaming gourds are used as key process design or important sub -auxiliary machinery, which are widely used. A complete cycle generally includes taking objects, lifting, translation, uninstallation, and then returning to the original. Frequent starting, braking, positive, and reverse movement is the basic feature of a robotic gourd. The design of the hand -pour gourd should comply with the provisions of the GB3811's "Design Specifications of the crane" and the GB6067 "The Safety Regulations of the Liggle". The hand pour gourd is rotated by dragging the manual chain and the bracelet, pressing the rotor of the friction tablet and brake seat into a combination of the part. From the lifting chain wheel, the heavy chain is lifted up. Hand -streaming is about 0.5 tons of heavy objects. It uses a set of II -level gear to reduce transmission. Hand -streaming liquids are mainly used in factories, mines, construction sites, docks, docks, warehouses, or construction. The original motivation is transmitted by manual handlifts, reducing the handle of the hand, increasing the gear meshing ratio, making the structure compact and beautiful, and durable. The lifting machinery is a handling machine that rises, decreases, and moves horizontally by intermittent operations. The operation of the lifting machinery usually has a duplicate properties. A complete cycle generally includes taking objects, lifting, translation, uninstallation, and then returning to the original. Frequent starting, braking, positive, and reverse movement is the basic feature of a robotic gourd.