Air brake device for main transmission shaft of printing machine

The utility model relates to the field of air brake devices, in particular to an air brake device for a main transmission shaft of a printing machine, which comprises a brake disc assembly mounted on the main transmission shaft, a mounting plate is fixedly arranged on a machine body, and a pneumatic brake matched with the brake disc assembly for use is mounted on the mounting plate. The braking time of the main transmission shaft and the transmission mechanism is saved, and the effect of improving the efficiency of the printing machine is achieved. 本申请涉及气刹装置的领域，尤其是涉及一种印刷机主传动轴用气刹装置，其包括安装在主传动轴上的刹盘组件，所述机体上固定设置有安装板，所述安装板上安装有配合刹盘组件使用的气动制动器。本申请有利于节省主传动轴和传动机构制动的时间，具有提高印刷机的效率的效果。