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| Commutator_RUIAN CITY TIANRUI COMMUTATOR CO.,LTD. |
| ADD:LuPu Industrial Area North Road, Pandai Ruian City,Zhejiang Province |
| TEL:86 577-65099298 |
| FAX:86 577-65099198 |
| ZIP:325200 |
| Email:tianrui@tianrui-china.cn |
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For the conventional approach does not resolve the problem of commutator brushes spark, then shut down, with QJ44-type double bridge measuring the adjacent commutator commutator rotor DC resistance between the two, as shown in Figure shown. Note that must not be allowed at the double bridge, with wires C, P connected to switch two test line measurements, or can not remove the table T and commutator contact resistance between the impact on the measurement results.
# 00 before measurement of water mill with sandpaper to polish the commutator surface, picked off the pieces between the residual toner, and then compressed air to blow a clean commutator rotor. Commutator pieces are numbered with a marker.
Commutator is a high-speed rotating equipment, rotor windings will be electric power and centrifugal force, although both have been run in the ratings, but increased chip rotor winding and the commutator is the commutator of welding mouth weak link in the rotor, and is using the traditional soldering process, combined with inter-chip DC resistance measurement results to determine the rotor winding and commutator pieces increased the welding point between the virtual loose wire end leading to fatigue, the contact resistance increases , increase heat to accelerate the oxidation of the contact surface, the contact resistance further increased, further increasing the heat, so a vicious cycle, eventually leading to the commutator rotor insulation burning at high temperatures, and ground arc discharge, and damage to the commutator . Disintegration of the results showed that the commutator, rotor windings of the test to determine the relevant data and conclusions are accurate.
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