Structural design analysis of rotary joints (swivel joints) used in steel plants

It is mainly used in places where frequent rotation is required and a medium passage needs to be provided.

Its main composition is that the rotational centerline of the rotary joint must be consistent with the rotational centerline of the rotating body, and the rotary joint must be equipped with a sealing device and an anti-drop positioning device.

The rotary joint used in steel mill continuous casting machines is designed based on modern steel continuous casting equipment. The M series rotary joint is a buried rotary joint specifically designed by Aerospace Equipment Co., Ltd. for continuous casting machines in the metallurgical industry. It is used for internal cooling of the upper roller on the continuous casting machine to improve the service life of the roller. The rotary joint is used in the cooling water part of the cold rolling mill! It is also suitable for other industries, especially in situations where external installation dimensions are limited. Its main feature is that most of the joint is deeply embedded into the roller, with only the pipe connecting elbow exposed externally. It utilizes the assembly layout of the external space and is more aesthetically pleasing. In addition to adopting a balanced design, this sealing structure also changes the original axial tandem type to an inverted concealed type, which not only reduces the axial length but also integrates the flange and shell, making it more conducive to joint disassembly and maintenance.