Stepping servo motor speed _ shenzhen mini stepper motor mute
stepper motor ( Commonly known as & other; & throughout; ) Refers to according to the law of electromagnetic induction electrical power conversion or transfer of an electromagnetic device. Its main function is to produce drive torque, as with all electrical appliances or mechanical power. Generator is the main purpose of use of electrical energy into mechanical energy. Stepper motor mainly includes a magnetic field to produce electromagnetic winding or the distribution of the stator winding and a rotation of the armature and rotor or other accessories. Under the effect of rotating magnetic field of stator winding, its a current in the armature squirrel-cage aluminum box by and by the magnetic field effect and make the turn.
stepper motor parts
a. The stator
1. The stator iron core: part of motor magnetic circuit, and placed on the stator winding;
2. Stator winding: is the circuit part of the motor, to the three-phase alternating current (ac), produce a rotating magnetic field;
3. Frame: fixed ends and to support the rotor, stator core and plays a role of protection, heat dissipation and so on;
2. Rotor ( Rotating parts)
1. Rotor core: as part of motor magnetic circuit as well as in the core place rotor winding groove;
2. Rotor winding: cutting the stator rotating magnetic field induced electromotive force and the current, and form the electromagnetic torque and motor rotation;
stepper motor product category
1. Dc motor
dc motor is a dc can be converted into mechanical energy or converting mechanical energy into direct current to the rotation of the motor. It is to achieve can direct current planetary gear motor and mechanical energy conversion from each other. When it is a dc motor, motor runtime converts electrical energy into mechanical energy. Make generator operation is a dc generator, the mechanical energy into electricity.
2. Stepper motor
the stepping motor is the electrical pulse signal into angular displacement or linear displacement of open loop control stepping motor. In the case of the overload, motor speed, stop position depends only on the pulse signal frequency and pulse number, and not affected by load change, when the stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed Angle. Can be controlled by controlling the pulse number of angular displacement, so as to achieve the purpose of accurate positioning; As well as by controlling the pulse frequency to control motor rotation speed and acceleration, so as to achieve the purpose of regulating.
3. One-way asynchronous motor
asynchronous motor is also called induction motor, is by the air gap interact to produce a rotating magnetic field and rotor winding induced current electromagnetic torque, so as to realize the mechanical and electrical energy into mechanical energy of an ac motor.
4. Permanent magnet motor
permanent magnet motor is provided using permanent magnet motor magnetic field. power, need two conditions, a magnetic field, another is the presence of movement of the current magnetic field.
working principle of the step motor
when current flows through the stator winding of the stator winding is a vector field. The magnetic field can drive the rotor rotating an Angle, make a pair of rotor magnetic field direction in line with the stator magnetic field direction. When the vector magnetic field of the stator rotating an Angle. Also as the rotor magnetic field to turn an Angle. For every input electrical impulses, a rotary Angle of motor before further. The output angular displacement is proportional to the input pulse count, speed is proportional to the pulse frequency. Changing the order of the winding current, the motor will be reversed. So the available control pulse number, frequency and various phase winding of the motor power in order to control the step motor rotation.
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