Pressure wheel autorotation device and roasting machine

The utility model discloses a pressure wheel autorotation device and a roasting machine, and belongs to the technical field of pellet roasting. The pressure wheel autorotation device comprises a supporting frame, a swing arm and a working pressing plate. One end of the swing arm is rotatably connected with the support frame; the working pressing plate is fixedly arranged on the end face, facing the pressure wheel, of the swing arm. And the working pressing plate is in contact with the pressure wheel and is used for pressing the pressure wheel. According to the pressure wheel autorotation device and the roasting machine, the pressure wheel can realize autorotation in the operation process, so that a bearing in the pressure wheel is fully lubricated, and the service life of the pressure wheel is prolonged. 本实用新型公开了一种压力轮自转装置及焙烧机，属于球团焙烧技术领域。所述压力轮自转装置包括：支撑框架、摆臂及工作压板；所述摆臂的一端可转动式地与所述支撑框架连接；所述工作压板固定设置在所述摆臂朝向所述压力轮的端面上；所述工作压板与所述压力轮接触，所述工作压板用于压迫所述压力轮。本实用新型压力轮自转装置及焙烧机可以使压力轮在运行过程中实现自转，进而使压力轮内部轴承润滑充分，提高压力轮使用寿命。