There are many types and models of geared motors. The process of product selection will be involved in the purchase of motors. The importance of selection is self-evident. Next, Celent Industrial will teach you how to select the correct type of geared motor?

1. The size of the geared motor

When choosing gears, it is always required that the smaller the size, the better. In fact, this is a misunderstanding in use. In product design, try to reserve as much space for product assembly as possible to better match the appropriate gear box.

2. Electrical performance of geared motor

(1) Rated torque/speed: In many cases, customers themselves do not know the real torque required by their products, but want the torque to be as large as possible. In fact, the torque can be measured by the following simple methods, and an approximate For the geared motor, the current and voltage regulation power supply are connected in series in the line, and then the speed and torque are controlled by adjusting the voltage. By comparing this data with the graph, the actual torque and speed can be accurately known.

(2) Maximum allowable current/torque: Many automation products have a maximum allowable current. When the current exceeds a certain value, it will cause damage to the electrical circuit, causing major defects such as product heating, short circuit, and burning. Usually we think that the bigger the torque, the better. The actual excessive torque will cause damage to the dragging system, causing wear and damage to the mechanical structure of the product. At the same time, excessive torque will also cause damage to the motor and gearbox itself and short life. . If the installation is not limited by the air noise, choose a low-speed motor to match a small-speed reduction gearbox to obtain a high reliability and long life.

3. Noise of geared motor

Usually, the noise is the mechanical noise of the gear, that is, the sound that the ear can hear. The reduction box found that the sound was loud, and it was required to improve the noise. Repeated sample delivery still could not solve the problem. In fact, this kind of noise is not the noise emitted by the product itself, but is caused by various reasons, such as the vibration caused by the high rotation speed of the motor, the resonance formed by the rigid connection between the geared motor and the machinery and equipment, and the dragging of the load. noise caused by eccentricity, etc. The noise of plastic gears is lower than that of gold brush gears, the noise of helical gears and spur gears is lower, the metal worm gear and worm structure have larger noise, and the planetary gears have larger noise.

4. The priority direction of geared motor product guarantee

To clarify the direction of the product guarantee, it is very important to select different geared motors according to the different use environments. For example, as a financial machine, priority should be given to product reliability, such as toys, and product safety and environmental protection. For example, industrial machinery such as valves should give priority to product life, and household products should give priority to product mute requirements.