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Actually has a plurality of coils of a DC motor, each coil is connected to a pair of the commutator segments. Some motors do not use permanent magnets, electromagnets used to produce a more powerful magnetic field. Commutator works is that when the current through the coil, it will in the role of the permanent magnet, attracting and repelling force by rotation, when it goes to and magnet equilibrium, through the power of the original line representing the corresponding commutator The electrical contacts on Shuafen leave, and the brush is connected to the line with a set of coils that generate driving force corresponding to the contact pad, so keep repeating it, the DC motor to turn up. If there is no effect of the commutator, and that the motor can only be transferred within a half-circle on the card is dead, only as electric brakes. Commutator material characteristics: 1, housing: high rigidity cast iron FC-25; 2, gear: high-quality high-purity alloy 50CrMnT quenching process, the carburizing and grinding together; 3. Spindle: high quality alloy steel 40Cr quenched and tempered high purity processing, have hung load carrying capacity. 4, bearing: with a load carrying capacity of tapered roller bearings; 5. Seal: imports lips seal with high dust and anti-spill. |
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Commutator works and material characteristics
Source： Time：2015-04-22 14:27:00 views：
Actually has a plurality of coils of a DC motor, each coil is connected to a pair of the commutator segments. Some motors do not use permanent magnets, electromagnets used to produce a more powerful magnetic field.