介绍了用于中板二辊轧机上的气动离合器的设计、结构及原理，该离合器在马钢中板轧机压下系统上应用一年多，取得了明显的社会效益，具有推广应用价值。 The design, structure and principle of the pneumatic clutch used in the two-plate mill are introduced. The clutch has been applied for more than a year in the Masteel medium-plate mill reduction system and has obtained obvious social benefits and has the promotion and application value.