Low-inertia integrated rotor structure of permanent magnet motor

The invention discloses a low-inertia integrated rotor structure of a permanent magnet motor, which comprises a rotor core and a rotor body, and is characterized in that the rotor body is fixedly mounted on the inner side of the rotor core; the middle position of the rotor body is connected with one end of the first water bag through an oil conveying pipe, the left side position of the rotor body is connected with the output end of the permanent magnet motor through an anti-falling mechanism, and the rotor body can be prevented from falling off from the output end of the permanent magnet motor. According to the low-inertia integrated rotor structure of the permanent magnet motor, the limiting mechanism and the attaching mechanism are arranged, hydraulic oil in a first water bag can be conveyed into a second water bag and a third water bag by rotating a rotating rod, and at the moment, the hydraulic oil can be conveyed; and the limiting mechanism and the attaching mechanism can be attached to the outer side of