What is a stepper gear motor? The geared stepper motor is a widely used deceleration device. 12v geared stepper motor is a common type of geared stepper motor. The following will introduce in details stepper motors, reducers, stepper gear motor, and their structure.
Stepper motor is a kind of sensor motor. Its working principle is to use electronic circuit to convert direct current into multi-phase sequential control current. With this current, the stepper motor can work normally. The driver is a multi-phase sequential controller to provide time-sharing power supply for the stepper motor. Stepping motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement. It is the main executive element in modern digital program control systems and is widely used. In the case of non-overload, the motor speed and stop position only depend on the frequency and pulse number of the pulse signal, and are not affected by the load change. When the stepper driver receives a pulse signal, it drives the stepper motor to rotate at a fixed angle, which is called “step angle”, and its rotation runs step by step at a fixed angle.
The reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid shell. It is often used as a reduction transmission device between the original moving part and the working machine. It plays the role of matching the speed and transmitting torque between the prime mover and the working machine or the actuator. It is widely used in modern machinery. It is generally used for low-speed and high-torque transmission equipment. The motor, internal combustion engine or other high-speed running power is used to achieve the purpose of deceleration by meshing with the large gear on the output shaft through a gear with a small number of teeth on the input shaft of the reducer. There will also be several pairs of gears with the same principle to achieve the desired deceleration effect. The ratio of the number of teeth of the large and small gears is the transmission ratio. The drive source of the reducer can be a DC motor, a stepper motor, a coreless motor, a micro motor. This type of deceleration equipment is also called a DC gear motor, a stepper gear motor, a coreless gear motor, a micro gear motor, etc.
The geared stepper motor is composed of a reducer (gearbox) and a motor. The motor can provide a considerably high speed, but the torque is very small, and the movement inertia generated is quite large. The function of the reducer is to reduce the speed. The inertia of increasing torque and decreasing movement has reached the desired speed and torque. For example, rare electric blinds and electric rolling gates all use geared motors, which have slow speed and large torque.
In short, a stepper motor can be controlled with a fixed length and a fixed speed. The difference between the stepper motor and geared stepper motor is that the stepper motor can achieve constant speed and punctuality (you can set how long you want it to go and how fast it needs to rotate), but the speed of the geared stepper motor is determined by the reduction ratio and cannot be adjusted. The speed is fast. However, the stepping motor has a small torque, and the stepper gear motor has a large rolling torque.