When will the spring of the right angle planetary reducer come?

In the field of mechanical transmission, the beam reducer is an intermediate device connecting the power source and the actuator. Usually, the small gear on the input shaft is meshed with the large gear on the output shaft to achieve the purpose of reducing the speed and transmitting greater torque. At present, mature and standardized beam reducer includes: cylindrical gear beam reducer, turbine beam reducer, right angle planetary beam reducer, RV beam reducer, cycloid gear beam reducer and harmonic beam reducer. Since the 1980 s and 1990 s, with the development of aerospace, robotics, medical equipment and other emerging industries, high-performance precision beam reducers with simple and compact structure, high transmission power, low noise, and stable transmission have been required. Among them, RV beam reducers and Harmonic beam reducer are two important right-angle planetary reducers.

For the robotics industry, the beam reducer is a key component of the robot, and the cost accounts for 1/3 of the entire robot production cost. China's research on the robot beam reducer is late, the technology is not mature, and now heavily dependent on imports. Beam reducer is a key factor restricting the development of China's robot industry. Conquering the beam reducer technology is the inevitable choice for the industrialization of domestic robot enterprises.

At present, the situation of Chinese robots is still very serious, and the typical is the lack of overall breakthrough in the core technology of robots. The core components are mainly divided into three parts, robot reducer, AC/DC servo motor and controller. In terms of cost, at present, about 35% of the cost of the global robot industry is reducer, about 20% is servo motor, about 15% is control system, only about 15% is processing body, and the rest is mainly application. It can be seen that the beam reducer is a key factor restricting the development of the robot industry, and the core technology of the reducer is almost monopolized by two Japanese companies, and all Chinese robot companies are working for Japanese companies.

At present, there are two kinds of beam reducers used in the field of robotics, one is RV beam reducer, and the other is harmonic beam reducer. In the articulated robot, because the RV beam reducer has high rigidity and rotation accuracy, the RV beam reducer is usually placed on the base, arm, shoulder and other heavy loads, while the harmonic beam reducer is placed on the arm, wrist or hand. Japan has an absolute lead in high-precision right-angle planetary reducers for robots.

The right-angle planetary reducer is a reducer composed of three planetary gears rotating around a sun gear. The right-angle planetary reducer is small in size, light in weight, high in carrying capacity, long in service life, stable in operation, low in noise, and has power split and multi-tooth meshing. It is an industrial product with a wide range of uses. Its performance is comparable to other military-grade planetary beam reducer products, but it has the price of industrial-grade products and is used in a wide range of industrial applications. Compared with the harmonic beam reducer, the RV beam reducer has higher stiffness and rotation accuracy. Therefore, in the articulated robot, the RV beam reducer is generally placed at the position of the heavy load such as the base, the boom, and the shoulder. The harmonic beam reducer is placed on the forearm, wrist or hand; Cartesian robots generally use right-angle planetary reducers. The core components have been restricting the rapid development of this Chinese robot, so it is very important to realize the localization of the accelerator as soon as possible.