What Are The Common Types Of Reducers For Industrial Robots?
In industrial robots, the speed reducer is one of the three important components, and the cost can account for one-third of the total cost of the robot. Due to the high requirements of industrial robots for reducers, the choice of precision reducers is to choose from the aspects of torsional stiffness, starting torque, transmission accuracy, transmission error, transmission efficiency, etc. At present, only precision can meet the requirements of industrial robot reducers. There are three kinds of harmonic reducer, precision planetary reducer, and precision RV reducer.
RV reducer
RV reducer is developed on the basis of cycloidal pin wheel transmission, with a two-stage reduction and a central disc supporting structure. Since it was put on the market in 1986, it has become the “”queen”” reducer for robots because of its advantages such as large transmission ratio, high transmission efficiency, high motion accuracy, small backlash, low vibration, high rigidity and high reliability.
Harmonic reducer
The harmonic reducer consists of three parts: harmonic generator, flexibility theory and rigid wheel. Its working principle is that the harmonic generator makes the flexible wheel produce controllable elastic deformation, and the power is transmitted by the meshing of the flexible wheel and the rigid wheel. And to achieve the purpose of deceleration; according to the different wave generators, there are cam type, roller type and eccentric disc type.
Planetary reducer
As the name implies, a planetary reducer is a reducer with three planetary wheels rotating around a sun wheel. The planetary reducer is small in size, light in weight, high in carrying capacity, long in service life, stable in operation and low in noise. It has the characteristics of power splitting and multi-tooth meshing alone; it is an industrial product with a wide range of uses. Its performance is comparable to other military grade planetary reducer products, but it has an industrial-grade product price and is used in a wide range of industrial occasions.
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