Hoisting device for heat treatment of multiple workpieces

The utility model relates to a lifting device for heat treatment of multiple workpieces, which is formed by connecting a combined lifting chain and a combined lifting frame, a plurality of chains are mounted on a main lifting ring of the combined lifting chain, and a chain hook is arranged at the terminal of each chain; the combined hanging bracket is a rectangular combined hanging bracket formed by connecting a plurality of combined rods and a plurality of combined joints, and a plurality of combined hooks are connected to two symmetrical combined rods; according to the utility model, a plurality of heat treatment workpieces can be simultaneously lifted to enter a rapid cooling process, so that the consistency of heat treatment effects of the workpieces in the same furnace is ensured, and the performance and quality of products are improved. The cooling device is simple in structure and easy and convenient to operate, and the problem of performance difference of roller workpieces in the same furnace caused b