Double-bearing hybrid power motor

Abstract

The invention discloses a double-bearing hybrid power motor which is suitable for a parallel type hybrid driving structure. The double-bearing hybrid power motor comprises a motor rotating shaft, a motor rotor, double bearings, a motor stator and a motor cover plate, wherein the motor rotating shaft is ground and machined to form double bearing installation positions, the motor rotor is assembled on the motor rotating shaft in an interference mode, the double bearings are installed on the double bearing installation positions of the motor rotating shaft, the motor stator is installed in a motor shell, the motor cover plate and an inner hole in the motor shell are used as bearing pedestals of the double bearings, and the motor stator and the motor rotor are sealed. The double-bearing hybrid power motor is simple and reasonable in structure, the double bearings are installed on the motor rotating shaft, the motor rotating shaft is ground and machined, the size precision is high, when the positions of the double bearings on the rotating shaft are machined, clamping and machining of the two bearing positions on the rotating shaft can be completed at a time, the coaxiality of the two bearing positions is ensured, and the operation reliability of the double-bearing hybrid power motor is improved.

Description

technical field [0001] The invention relates to the field of engines, in particular to a double-bearing hybrid electric motor. Background technique [0002] The double-bearing hybrid motor is suitable for the parallel hybrid drive structure, which is better than the general parallel structure. First, the engine-motor-transmission is driven on the same shaft, which is similar to the traditional engine-transmission, and there are minor changes to the vehicle. The transmission with intersecting axes needs to be driven by bevel gears, which has high noise and low efficiency. In addition, the motor and engine torque are recombined after the clutch, which can realize the separation of the motor and the engine, realize pure electric power, and improve feedback efficiency. [0003] Wherein, the separation mechanism at the clutch shell end of the motor can loosen the clutch. At this moment, the motor acts as a motor, and the torque is output to the gearbox purely by the rotation of ...

AI Technical Summary

Problems solved by technology

[0005] Because the structure of the rotor determines that grinding can not be used, only turning can be used, and the dimensional accuracy is difficult to guarantee. Therefore, after the motor shaft and the motor rotor are assembled, the position of the motor rotor assembly bearing should be processed twice to meet the accuracy requirements. , which makes it difficult to ensure the coaxiality of the bearing position of the rotor; and after machining one bearing position, it needs to be turned around, and then the other one is processed. The second clamping also determines that the coaxiality of the two bearing positions will not be very good. Risk of motor rotor colliding with stator

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