What Are The Requirements For Material Applications For Speed Reduction Motors?

As a unique form of drive, miniature geared motors are often used in low-speed and high-torque applications. Miniature geared motors are characterized by a torque that increases as the output speed decreases. The use of materials for geared motors varies depending on the environment and the nature of the motor's operation, and the following will introduce the material use requirements for geared motors

1. The magnetic density of the iron core of the miniature geared motor is high or low

Depending on the working magnetic density of the miniature geared motor, the working magnetic density of the iron core of the miniature motor can be divided into two categories: high and low. For high power magnetic density cores, silicon steel sheets or electrically pure iron can be used; when using silicon steel sheets, cold rolled silicon steel sheets are preferred. Silicon free cold rolled steel sheet is widely used in small power drive motors.

2. Magnetic field characteristics of miniature motors

The magnetic field of the core of the miniature geared motor has two kinds of magnetic fields: constant magnetic field and alternating magnetic field, and the core is the main component of the motor to carry the magnetic flux and fix the rotor winding. The cores are stacked by silicon steel sheets, and the cores in constant magnetic fields such as the main pole of DC motors, magnetic choke or rotor pole of synchronous motors can be made of electric pure iron or No.10 steel.

3. Consider the size of the iron core loss of the miniature geared motor

There are two factors to consider when calculating the core loss during design. The first is the choice of silicon steel sheet thickness, thin silicon steel sheets stacked into the core of more insulation between the sheets, iron loss is lower, but the number of stacked sheets increases, punching, stacking workload increases. With thick silicon steel sheet, stacked into the core inter-chip insulation less, iron loss increased, but the number of stacked pieces decreased, the processing volume also decreased accordingly.

Secondly, the size of the weight of the iron core of the miniature geared motor, geared motor core weight on the use of soft magnetic materials such as silicon steel sheet with small iron loss value. Small power motor core weight is small for the core material iron loss value can be appropriately relaxed.

The above is the geared motor on the application of material requirements, I hope you have a reference, for more information, please feel free to consult Vshida micro-motor