Rotation shaft supporting structure of disrotatory type fan motor for mine

The utility model relates to a rotation shaft supporting structure of a disrotatory type fan motor for a mine. The supporting structure is characterized in that a roller bearing and a four-point contact ball bearing are respectively installed between two end covers of the motor and the rotation shaft of the motor, wherein the roller bearing is installed on a shaft extending end of the motor rotation shaft, and the ball bearing is installed on a fan end of the motor rotation shaft. The structure can effectively improve the structure layout of the bearings of the motor rotation shaft, the service life of the motor can be prominently improved, and the service life of the bearings on two ends can reach hundreds of thousands of hours. Compared with the prior art, the supporting structure has the advantages that the structure design is rational, the end cover commonality is strong, the assembly is convenient, the maintenance is easy, the manufacture cost is low, the operation is stable and reliable, the failure rat