The core function of precision reducers is to reduce speed and increase torque, which is an indispensable device in the field of precision transmission.

A reducer is a power transmission device that is an intermediate mechanism connecting the power source and the actuator. It can convert high-speed and low torque inputs into low-speed and high torque outputs through internal transmission mechanisms such as gears and worms. At the same time, it can also increase transmission accuracy and increase load capacity. Among them, precision reducers with small return clearance and high transmission accuracy have high technical barriers and strong market demand.

Precision reducers can generally be divided into planetary reducers, harmonic reducers, RV reducers, toroidal enveloping worm gear reducers, etc. according to their structure, and are commonly used in high-end fields such as robots and CNC machine tools.

The development of the humanoid robot industry is helping to rapidly expand the market for precision planetary reducers, harmonic reducers, and toroidal enveloping worm gear reducers. From the current structure of various humanoid robots, there are many planetary, harmonic reducers, and toroidal enveloping worm gear reducers used. Taking the Tesla humanoid robot Optimus Gen-2 as an example, it uses a total of 14 harmonic reducers and 12 planetary reducers throughout its body. The 14 harmonic reducers are used in the rotating joints of the shoulders, elbows, waist, and other parts, while the 12 planetary reducers are used in the internal transmission device of the dexterous hand (6 for one hand). Some domestic humanoid robots have started to experiment with torus enveloping worm gear reducers for their dexterous hand joints, adapting to limited finger space with their compact size.

Definition: A reducer is a device located between the power source and the actuator, which is a power transmission mechanism that uses a gear speed converter to reduce the number of rotations of the motor to the desired number and obtain a larger torque.

 
effect:
a) Reduce speed: During the operation of the equipment, the motor can provide a higher speed, but different application scenarios and functional requirements require matching different speeds. Therefore, a reducer is needed to reduce the output speed of the motor.
b) Increasing torque: The decrease in speed results in an increase in torque, allowing the motor with a constant rated output power to cope with larger loads and resist greater resistance.
c) Increasing transmission accuracy: The reducer can improve the transmission accuracy of the motor, reduce transmission errors and return errors, and is suitable for occasions with high requirements for transmission accuracy.
d) Increasing load capacity: The deceleration motor increases the output torque through the reducer, enhancing the system's adaptability to loads and enabling it to withstand larger loads and impact loads.

Classification: Reducers can be divided into three categories based on their purpose and accuracy: 1) Universal reducers, widely used in multiple fields to meet basic power transmission needs;

2) Specialized reducers, mainly large and extra large, are mostly non-standard and industry-specific products, including marine gearboxes, metallurgical gearboxes, wind power gearboxes, engineering machinery gearboxes, etc;

3) Precision reducers with small return clearance and high transmission accuracy are commonly used in high-end fields such as robots and CNC machine tools, including precision planetary reducers, RV reducers, harmonic reducers, and toroidal enveloping worm gear reducers.