Repair method of high speed centrifuge

Repair method of high speed centrifuge

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L, judging whether the need to disassemble the armature high-speed centrifuge
Observation of high-speed centrifuge motor work between the carbon brush and the commutator can occur spark, spark level, (I) is no spark. That the carbon brush and the commutator are normal, no need to repair; (2) there are only 2 ~ 4 tiny sparks. Then carefully observe the commutator surface if flat. Most cases can not need to repair; (3) except for R 4 with minimal spark F, and another 1 to 3 large spark, it is not necessary to open the armature, just use the sandpaper grinding brush commutator; (4) suppose there big spark on the 4, you need to use sandpaper grinding commutator, to carefully to the commutator stop vehicle plus then must take the carbon brush and the armature open down. Of course a giant commutator being processed, you will want to change the brush grinding brush.
Method 2, opened the high-speed centrifuge motor
Because the cover and the armature in the open high speed centrifuge end. Oscillation will put the brush damage, should first put the brush is removed from the carbon grains. The solid two carbon tax and carrying to the device must be the same angle, in order to guarantee to restore rehabilitation sample in equipment, at the mercy of the carbon brush not anti loaded, must be removed prior to the mercy in the carbon brush. Brush do mark. Also remember don't touch bad carbon and commutator contact surface.
One end of the high-speed motor, generally have a cooling wind dysentery, at the other end may be trembling with fear must be in open cooling fan leaf and magnetic steel or speed ring a measuring speed with the magnetic steel or speed ring, not the fan leaf, speed magnetic steel broken collapse. And then in the fan sleeve or between the magnetic steel sleeve and the shaft is also proud of a mark to be repaired after the end, can according to position equipment originally because of high speed motor dynamic balancing test with fan blades or speed (speed ring alnico) do, so assembly, must according to mark assembly was apart of this point in the general motor repair is be of no great importance thing, can be in high speed motor repair is related to the overall situation of I surface. Because high-speed centrifuge once the damage speed ring or a fan film. Or segments according to mark assembly, even if other parts repair beautifully. After assembling, uneven oscillation high-speed centrifuge may cause the machine when working in high speed.
Open the high speed motor is not available when the hammer, punch? Etc. the hard knock hard lever to use puller, using puller carefully: pull it top to direct roof in top eye. In Rama's top and top of the eye with a protective pad pad, the intent is to protect the top eye on the armature shaft prevent damage.
Fixed electric pull the ends of the end cover, before open high-speed centrifuge to mark on the lower end cover seven. In order to repair after loading J as:. Disassemble the bearing r armature should heart clean, clean with gasoline clean aircraft, the gasoline to dry and then with 7014 (or 7018) bearing grease filled bearing chamber (bearing can not high speed motor for general butter, molybdenum disulfide). Put in the center of the stand-by clean surface assumption; high speed centrifuge commutator flat and a layer of purple, this is the oxide layer can protect the commutator surface, removing powder can be surface by rubbing the soft brush.