1, reducer: key parts of the transmission system, rich downstream applications

The reducer is a common mechanical transmission device, the reason why it is called deceleration is the value of most of its cases are used to reduce the rotation speed of the output end while increasing the torque of the output end, if the reverse operation is called the speed reducer, the reducer is the key part of the robot, the servo motor output speed is high, the torque is small does not meet the movement needs of the robot. The reducer can ensure the normal operation of the robot.

MELFA-CR1-571 According to the different architecture and transmission principle, the reducer can be divided into general reducer, special reducer and precision reducer, of which the general reducer is mainly small and medium-sized specifications, modularization, serialization, and more widely used; The special reducer is generally large and extra-large, which needs to be specialized and customized according to different application scenarios. Precision reducer light weight, easy to control large power, mainly used in robots, CNC machine tools and other industries.

In addition, the reducer can be divided into single stage and multistage reducer according to different transmission stages; According to the shape of the gear can be divided into cylindrical gear reducer, bevel gear reducer and cone, cylindrical gear reducer; According to the layout of the transmission, it can be divided into expanded type, shunt type and coaxial reducer.

The downstream application of the reducer is rich, and the market space is broad. Reducer downstream applications are rich, can be used for lifting and transportation, cement building materials, robots, heavy mining, metallurgy, etc., according to the statistics of the Industrial Research Institute of China, as of 2022, the downstream applications of the reducer in China, lifting and transportation, cement building materials, robots are the top three applications in the market, accounting for 25%, 15%, 11% respectively.

According to the forecast of the China Business Industry Research Institute, the market size of China’s reducer industry will reach 132.1 billion yuan in 2022, an increase of 5.01%, and the market size of China’s reducer will grow to 138.7 billion yuan in 2023. From the production point of view, China’s reducer production in 2021 reached 12.03 million units, an increase of 31.19%, about 13.8 million units in 2022, and is expected to further increase to 15.7 million units in 2023.

2, precision reducer: humanoid robot is essential

2.1 Precision reducer can be divided into harmonic reducer, RV reducer, precision planetary reducer

MELFA-CR1-571 Compared with the traditional reducer, the precision reducer has small return clearance, higher precision and longer service life, and is widely used in high-end fields such as robots and digital control machine tools. Precision reducer can be divided into harmonic reducer, RV reducer, precision planetary reducer and so on. RV reducer is composed of the first stage involute cylindrical gear planetary reducer and the second stage cycloidal pinwheel planetary reducer, which is characterized by compact structure, low vibration and low energy consumption, and is widely used in robots. The harmonic reducer is a structure that uses the elastic deformation wave of flexible components for power transmission transformation, including harmonic generator, flexible wheel and steel wheel, which has a large transmission ratio and high transmission precision. The motion of the planetary reducer is similar to that of the Earth rotating around the sun, with small size, large load and smooth operation.