The actual DC motor has multiple coils, and each coil is connected to a pair of commutator segments. Some motors do not use permanent magnets, but use electromagnets to generate a stronger magnetic field.
Commutator material and model features:
1. Chassis: Cast iron with high rigidity FC-25;
2. Gear: Made of high-quality and high-purity alloy steel 50CrMnT quenched and tempered, carburized, quenched and ground;
3. Main shaft: It is made of high-quality and high-purity alloy steel 40Cr quenched and tempered, and has the ability of high suspension load. How the commutator works
Time: 2011-10-22 08:24 Author: Yanning Electromechanical Equipment Click: 199 times
The commutator is a part of the DC permanent magnet series motor in order to allow the motor to continue to rotate.
Structurally, the commutator is a circle with several contact pieces connected to each tap on the rotor. Two electrodes connected to the outside are called brush contacts, and only two of them are contacted.
The commutator is two copper half rings with a gap in the middle. Rely on the commutator to cooperate with the commutation action of the brushes to change the direction of the current.
4. Bearings: equipped with cone roller bearings with heavy load capacity;
5. Oil seal: Imported double lip oil seal is used, which has extremely high dust and oil leakage resistance. 1. Purpose
The commutator is one of the indispensable main components in the liquid flow standard device. It is installed on the upper part of the metering container to realize the reversing function.
A magnetic signal converter (consisting of a permanent magnet, a reed switch, and a changeover switch) is used to accurately control the commutation timing. All parts that contact the medium are made of stainless materials.
Three, working principle
With 0.4～0.6MPa compressed air as the power, the cylinder piston moves to make the nozzle swing to achieve the purpose of reversing.
T2, T4, T6, T7, T8, T10, T12, T16, T20, T25