Other accessories for phase asynchronous motors

Other accessories for phase asynchronous motors

1. End cap: support function.

2. Bearing: Connect the rotating part and the moving part.

3. Bearing end cover: protect the bearing.

4. Fan: Cool the motor.

Second, the DC motor adopts an octagonal full laminated structure, which not only has high space utilization, but also can withstand fluctuations in ripple current and rapid load current when powered by a static rectifier. DC motors generally do not have series-excited windings and are suitable for use in automatic control techniques that require forward and reverse rotation. It can also be made with series excitation winding according to user needs. The motor with a center height of 100 to 280 mm has no compensation winding, but the motor with a center height of 250 mm and 280 mm can be made with a compensation winding according to the specific conditions and needs. The motor with a center height of 315 to 450 mm has a compensation winding. The shape and technical requirements of the motor with a center height of 500-710mm are in line with IEC international standards, and the mechanical dimensional tolerances of the motor comply with ISO international standards.

The working principle of DC motor:

In the figure, the coil is connected to the commutator piece, the commutator piece is fixed on the rotating shaft, rotates together with the motor shaft, and the commutating piece and the commutating piece and the rotating shaft are insulated from each other, and the whole structure thereof is called commutation Device. The brushes A and B are fixed in space.

The DC voltage is applied to the two brush ends of the motor, and the electric energy is introduced into the armature coil due to the action of the brush and the commutator, and the current in the same lower coil side is always in one direction, which in turn ensures the The direction of the electromagnetic force received by the lower coil side is constant, which ensures that the motor can continuously rotate to convert electrical energy into mechanical energy to drive the production machine. This is the working principle of the DC motor. Note: The current direction in each coil side is alternating.