In the process of DC gear motors, it is necessary to determine the running speed of the machine first, then calculate the reduction ratio of the gear reduction motor according to this speed, calculate the torque of the load, and select the output of the gear reduction motor according to this torque (refer to the gear reduction motor manufacturer) "Output torque meter"), determine the model of the gear reduction motor, determine the additional functions of the gear reduction motor, such as power brake, power brake, frequency conversion, shrink frame, shell material and so on.
The load torque of the DC gear motor has a direct relationship with the speed and current. The speed decreases linearly with the increase of the load, and the current increases linearly. When selecting specifications, try to work near the point of greater efficiency to achieve the desired performance, working life and stability of the characteristics.
The working life of DC gear motors generally exceeds the working life of DC motors, usually up to 1000 to 3000 hours. The total reduction ratio of the gearbox is generally in the range of 1:10 to 1:500. Specially designed to achieve 1:1000 or more, but the gearbox with a large reduction ratio is not allowed to "reverse", that is, the output shaft of the gearbox cannot be used as the drive shaft forcibly reversing.