How to distinguish between harmonic reducer and RV reducer

update:2022-04-25

abstract: The robot is composed of a controller, a servo motor and a reducer. The three core components of th...

The robot is composed of a controller, a servo motor and a reducer. The three core components of the reducer, servo and controller cost 30% to 50%, 20% to 30%, and 10% to 20% of the robot's cost, respectively. The reducers used in industrial robots mainly include RV reducers and harmonic reducers. How to distinguish between harmonic reducers and RV reducers?

Application characteristics of RV reducer

RV reducer is suitable for heavy duty robots. It is generally used in the three joints of the leg waist and elbow of the heavy-duty robot. Compared with the harmonic reducer, the key to the RV reducer lies in the processing technology and assembly technology. RV reducer has higher fatigue strength, rigidity and life. Unlike harmonic drive, the motion accuracy will be significantly reduced with the increase of use time. The disadvantage is that it is heavy in weight and large in size.

Application characteristics of harmonic reducer

The harmonic reducer is used for several axes at the end of small robots or large robots. It is characterized by small size, light weight, large bearing capacity, high motion accuracy and large single-stage transmission ratio.

Through the above description, you should already know how to distinguish the harmonic reducer from the RV reducer. The RV reducer is mainly used for heavy-duty robots, focusing on the first few joints. The harmonic reducer is mainly used in light and small industries. A few axes at the end of the robot.

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