The difference between stepping motor and geared motor

by:V&T Technologies     2020-01-17
The difference between a stepping motor and a geared motor, before answering this question, first understand what is a stepping motor and a geared motor? Stepping motor is an open-loop control element stepping motor device that converts electrical pulse signal into angular displacement or linear displacement. In the case of non-overload, the rotation speed and stop position of the motor only depend on the frequency and number of pulses of the pulse signal, and are not affected by load changes, when the stepper motor driver receives a pulse signal, it drives the stepper motor to rotate at a fixed angle in the set direction, called'Step angle' Its rotation runs step by step at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, thus achieving the purpose of accurate positioning; At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency, thus achieving the purpose of speed regulation. The geared motor is made up of a reducer (Gearbox) The motor is composed of high-speed rotating speed, but the torque is very small and the inertia is large; The function of the reducer is to reduce the rotating speed, increase the torque, reduce the inertia, and have reached the ideal rotating speed and torque; For example, there are common electric curtains and electric rolling gates, all of which adopt deceleration motors with slow rotating speed and large torque. Simply put, the stepping motor can be controlled at a fixed length and speed. For example, the Workbench can walk 1 meter and the rotating speed can be freely set. Common Application cases include the Workbench stepping motor of milling machine. The difference between the two is that the stepper motor can be fixed speed, timing (How long you want to go, how fast you can set); The speed of the reducer is determined by the deceleration ratio, and the speed cannot be adjusted; However, the stepping motor torque is small and the deceleration motor torque is large. The stepping motor can be controlled at a fixed length and a fixed speed. For example, the Workbench travels 1 meter and the speed is 500R/MIN, but the geared motor cannot do it. If it is a three-phase asynchronous geared motor, it decelerates through a gear box, however, the speed is not easy to adjust, so the speed should be adjusted through the frequency converter. Moreover, it is impossible to say how many strokes I want to take. If it wants to realize the function of the stepping motor (Fixed length speed regulation), To be used with frequency converter and encoder. In addition, the speed reduction motor has a large force, the general force of the stepping motor is not very large, and the stepping speed reducer can have a large force. For more knowledge of stepping motor parameters, please consult ruite electromechanical TAG stepping motor and deceleration motor.
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