Motor rotor assembly inspection items: 1 Appeara […]
Motor rotor assembly inspection items:
1 Appearance quality
The surface of the sample is smooth without scratches, rust, burrs, or burrs. The surface of the rotor wheel should be coated with anti-rust paint. The lines of magnetic force are clear, without broken lines, curves, sand holes, and the aluminum injection ring is filled with aluminum.
The dimensions of the rotor and shaft should meet the relevant technical requirements and drawings.
3 Shaft inspection
The thread and direction of rotation shall meet the requirements of the drawings. The rotation of the rotating shaft should be ≤0.03mm.
4 Concentricity test.
Place the concentricity meter on a horizontal surface, fix the rotor on the test fixture, adjust the height of the dial indicator, and use the dial indicator to test the rotor runout should be ≤0.03mm.
5 Shaft core hardness
(1) Measure the shaft core with Rockwell hardness tester, the hardness value is 18 ～ 25HRC.
(2) Component detection: Rotating shaft, iron core, and cast aluminum are used for component analysis.
6 Rotor salt spray test
Put the rotor in a salt spray test chamber with a temperature of 35 degrees and a concentration of 5%. After 24 hours of salt spray, there should be no rust or rust spots that cannot be washed.
7 Drop test
The rotor is placed vertically, and the end of the shaft extension is 300 ± 20mm away from a horizontal solid plane (such as a thick steel plate above 20mm). It can fall freely once, and the displacement between the rotor core and the shaft should be less than 0.2mm.
8 Whole machine test
Install the rotor into the relative model motor, then load and test speed should meet the requirements.