Why use stepper motor with gearbox?
Stepper motors are often used with a 變速箱, and this combination is often called a stepper geared motor. Why do stepper motors need to be used with a gearbox? The following will detail why stepper motors are used together with gearboxes and stepper motor gearbox types.
Why should stepper motors be used with gearbox together?
1. 步進馬達 is an electric pulse signal, transformed into an angular displacement or line displacement open-loop control motor, also known as pulse motor. In the case of non-overload, the speed of the motor, stop position only depends on the frequency of the pulse signal and the number of pulses, and is not affected by changes in load.
Such as changing the input pulse of the stepper motor drive circuit to low-speed motion, low-speed stepper motor waiting for the step command, the rotor is at a stop, in the low-speed stepping, torque fluctuations will be very large, 此時, such as changing to high-speed operation, it can solve the problem of torque fluctuations, but the torque will be insufficient, 那是, low-speed will torque fluctuations, and high-speed will be insufficient torque.
2. 小的 (less than 50mm) PM-type stepper motor step angle of 7.5 °, such motors will have the problem of position control accuracy changes.
3. 為什麼要使用帶齒輪箱的步進電機? The output axis of stepper motor adopts the direct drive load, when the load inertia is large, there will be a lack of acceleration torque.
4. 為什麼要使用帶齒輪箱的步進電機? The hope that the low-speed large torque braking situation.
Stepper motor with gearbox type.
1. stepper motor worm gear reducer: worm gear reducer is characterized by a relatively large size, not compact enough, under certain conditions can be self-locking, the efficiency is relatively low, about 60%. Because the efficiency is relatively low, many occasions to meet, generally not recommended and stepper motor with the use of.
2. stepper motor planetary reducer: planetary reducer planetary as the name implies is rotating around the star, so the planetary reducer is so, there are three planetary wheels rotating around a sun wheel reducer. Planetary reducer has high strength, 小尺寸, 低噪聲, low price, 高傳遞扭矩, high life, and good transmission, about 80% 或者更多.
3. Standard stepper motor gearbox reducer: miniature standard stepper motor gearbox reducer diameter specifications between 3.4mm-38mm, 減速比, no-load output speed, load output speed, 驅動噪音, return clearance and other technical parameters can be customized according to demand.
4. Non-standard custom stepper gearbox: Non-standard stepper motor gearbox products customized according to actual application requirements, 廣泛應用於智慧家居, intelligent robot, 通訊設備, 3C electronics, 線性驅動, 醫用器材, 工業設備, virtual reality industry.
