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Why add a reducer to the motor?

Why add a reducer to the motor?

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  • Time of issue:2022-03-15 11:05
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(Summary description)Why should a reducer be added to the motor? It is easy to understand that the reducer changes the output torque and speed, providing low speed and high torque. The speed ratio of the reducer = the inp

Why add a reducer to the motor?

(Summary description)Why should a reducer be added to the motor? It is easy to understand that the reducer changes the output torque and speed, providing low speed and high torque. The speed ratio of the reducer = the inp

  • Categories:News
  • Author:
  • Origin:
  • Time of issue:2022-03-15 11:05
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Information

Why should a reducer be added to the motor? It is easy to understand that the reducer changes the output torque and speed, providing low speed and high torque. The speed ratio of the reducer = the input speed/output speed, the slower the speed, the greater the torque. The speed reducer is actually a kind of speed changer, but the general speed changer is used to adjust the speed, and it is used to call it a speed reducer.

The general reducer has a fixed transmission ratio, and there are also adjustable frequency converters, which are generally graded speed regulation. This easily reminds us of cars. We all know that there is a speed reducer on the car, so the car has several gears. The gasoline engine (diesel engine) is similar to the motor, and the speed of the accelerator can be changed. But the changes are not large.
 
Of course, the clutch and the reducer are definitely not the same thing, but when it comes to the reducer, it is easy to think of the speed change of the car, and it is the contribution of the clutch. In fact, every time the gear shift is completed after pulling the gear lever. Generally, the adjustable transmission cannot be loaded when shifting gears, so the output of the reducer should be separated from the car through the clutch, and then connected after shifting. ).
 
The output power of the motor cannot be changed for no reason, it can only be turned into heat energy due to various losses. If the power remains the same and the speed decreases, the force (torque) becomes larger; at the same output power, the (angular) speed is inversely proportional to the force (torque).
 
If it is used in low-speed applications, can it be done with only an ordinary low-speed motor? Or how about a servo motor? Of course, only an ordinary low-speed motor will not work. Under normal circumstances, the speed ratio of the reducer can be as low as 1:3 or even Smaller, can also be higher than 1:180 or even larger. That is to say, when the ordinary motor speed is 1380 rpm (4-pole motor), the output speed of the reducer can be as high as 460 rpm or even greater, or as low as 7.6 rpm or less. However, ordinary motors cannot achieve such a large speed change range. Even if it is a multi-pole variable speed motor, the speed of the fastest 2-pole motor is about 2880-2970 rpm, and the speed of the lowest 12-pole motor is 480-490 rpm. about. If the equipment only needs a few tens of revolutions per minute, the ordinary motor will not work, which is why the motor needs to add a reducer.

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