Variable frequency speed regulation two-stage driving device for electric storage locomotive

The utility model discloses a variable frequency speed regulation secondary driving device for a power storage locomotive, which belongs to the technical field of driving devices and comprises a driving motor, the output end of the driving motor is connected with a primary transmission mechanism, a rotating shaft is fixedly mounted in the middle of the primary transmission mechanism, a secondary transmission mechanism is arranged on the surface of the rotating shaft, and the secondary transmission mechanism is connected with the driving motor. A driving shaft is mounted in the middle of the secondary transmission mechanism; the driving shaft and the rotating shaft are rotationally installed on two sets of supporting frames through bearings, a mounting plate for supporting the driving motor is welded to the tops of the supporting frames, mounting holes are formed in the four corners of the mounting plate, and a lubricating assembly located over the first-stage transmission mechanism and the second-stage transm