Inflation structure of permanent magnet direct drive motor for flotation machine

The utility model discloses a permanent magnet direct drive motor inflation structure for a flotation machine, which comprises a permanent magnet direct drive motor, the permanent magnet direct drive motor comprises a motor output shaft and a motor rear end cover, a motor shield is arranged on the outer side of the motor rear end cover, and an air chamber is formed between the motor shield and the motor rear end cover. The flotation machine air inlet pipeline is connected to the motor shield and is communicated with the air chamber; the motor output shaft is a hollow shaft, one end of the motor output shaft is connected with the flotation machine hollow stirring main shaft, the other end of the motor output shaft is installed on the motor rear end cover and extends into the air chamber, and the air chamber is communicated with the interior of the other end of the motor output shaft. The air inlet pipeline of the flotation machine is directly connected to the motor shield and communicated with the air chamber,