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Why is it called a miniature planetary gear reducer

2022-01-12

    In our daily life, we often encounter moving equipment or products, such as sweeping robots and smart electric curtains. If we take it apart, we will find that these devices have a power source, which is called a motor, also called a motor. The speed of the motor is very fast. According to different requirements, the speed of the motor is from 3,000 rpm to 18,000 rpm. The higher the speed, the less the rotating force. The high speed and small torque cannot meet the requirements of the equipment, which requires deceleration. The equipment linked with the motor is called a gearbox. While decelerating, the rotational torque (or output torque) also increases. This is the function of the gearbox.

    The reduction box is divided into parallel shaft gear reduction box (as shown in the picture) and planetary gear reduction box according to the shape. According to the size of the product, there are large gearboxes. This kind of large gearboxes are mainly used in large industrial equipment. The voltage of the drive motor is also 380V or 220V. The small gearboxes are even smaller, and there are miniature gearboxes. Planetary gear reducer. The voltage used by this reducer is generally between 1.5-24 volts. This product is generally used in small devices, especially household appliances and consumer electronics, such as sweepers in smart homes. Side brushes, middle brushes and rollers; the tubular motor reducer in the electric curtain; and the gear box in the massager.



     Here, I will introduce you to the miniature planetary gear reducer. As the name suggests, miniature means that the size is very small, and the diameter is generally between 4-35mm. Why is it called a planet? We all know that the solar system in the universe, our earth will autobiography, while autobiography, the earth also revolves around the sun. At least one gear in the planetary gear reducer is like the earth. While rotating, the axis of the gear rotates around a fixed main axis (revolution). This kind of gear transmission is called planetary gear transmission. Structure as shown below


    In particular, in the micro planetary gear transmission, the module of the gear is relatively small, that is, the module of each gear is m<1.0. Therefore, the miniature planetary gear reducer can also be called a planetary gear reducer with small modulus gears.