In the hull assembly and welding operation of the shipyard, the hull can be quickly and accurate due to the use of a ring -chain hand to pull the gourd, which not only improves the size accuracy and labor productivity of the hull, but also improves the surface quality of the hull. At present, the export volume of ships in my country has been increasing, and the ring -chain gourd has become an indispensable tool for shipyards

Circle chain hand pulling gourd is mainly composed of the body, handle, upper hook, lower hook, chain and other parts. The handle is pulled, and the inside of the handle is switched to the spiny wheel, and the rhotomy, chain and lower hooks are driven through a set of transmission mechanisms in the body, thereby driving the load. The ring chain hand pulling the gourd has a direction of the chain movement. Most of them are equipped with load -loaded spiral disc brakes and clutch devices. Take off the clutch device in the air load. Use your hand to pull the chain or move the chain with a hand wheel to quickly adjust the position of the hook