What are the functions of a dc gear motor

A deceleration DC motor is also called a gear deceleration motor. It is composed of a reducer and a DC motor. The function of the reducer is to provide a lower speed and a higher torque. At the same time, different reduction ratios of the reducer can provide different speeds and torques, which greatly improves the application of deceleration DC motors in various fields.

A deceleration DC motor is an independent component consisting of a gear transmission, a worm transmission, and a gear-worm transmission enclosed in a rigid housing. It is often used as a deceleration transmission device between the prime mover and the working machine, and plays a role in matching the speed and transmitting torque between the prime mover and the working machine or the actuator.

A deceleration DC motor is generally used for transmission equipment with low speed and high torque. Its basic working principle is to achieve the purpose of deceleration by meshing the motor and the high-speed power through the gear with fewer teeth on the input shaft of the reducer with the large gear on the output shaft. Ordinary reducers will also have several pairs of gears with the same principle to achieve the ideal deceleration effect. The ratio of the number of teeth of the large and small gears is the transmission ratio.

The functions of the deceleration DC motor are mainly as follows:

1) Reduce speed and increase output torque at the same time. The torque output ratio is calculated by multiplying the motor output by the reduction ratio, but it should be noted that it cannot exceed the rated torque of the reducer;

2) Reduce speed and reduce the inertia of the load at the same time. The reduction in inertia is the square of the reduction ratio.

The deceleration DC motor is actually a power transmission mechanism. It does not generate power itself. Its function is to use different gear sizes and speed converters to reduce the number of revolutions of the motor (motor) to the number of revolutions it wants; and obtain a mechanism with a larger torque. Of course, some people will have doubts. Can't we just ignore the reducer and adjust the speed of the motor? In fact, the reducer does not obtain a mechanism with a larger torque when changing the speed. The motor is directly connected to the equipment. When the equipment is running, the load on the motor is very large, which will cause great damage to the motor. However, it is different after the reducer. For example, for a reducer with a reduction ratio of 100, the load on the motor is only one percent when the machine is running, which reduces the loss of the motor. In addition, if the reducer is damaged, only the gears need to be replaced, and the cost is much lower than that of the motor.