双齿辊破碎机是煤矿中广泛使用的破碎设备。针对目前双齿辊破碎机能耗高、可靠性低、过粉碎严重等问题,从齿辊型式的设计、辊齿结构的设计和破碎机齿辊主轴和罩体间的密封等3个方面进行了研究和探讨,并提出了改进设想,对问题的解决具有一定的指导意义。 Double-roll crusher is widely used in coal mine crushing equipment. Aiming at the problems of high energy consumption, low reliability and over-comminution, the design of the tooth roller type, the design of the roller tooth structure and the seal between the main shaft of the crusher and the cover are carried out. Research and discussion, and put forward the idea of ​​improvement, which has certain guiding significance for the solution of the problem.