On the Meshing Efficiency of 2K-2H Type Planetary Gear Reducer

Abstract EN

This paper proposes 2K-2H type planetary gear reducer and analyzes its meshing efficiency.

First, according to the concept of train value equation, the kinematic design of 2K-2H type planetary gear reducers is carried out.

Three 2K-2H type planetary gear reducers are designed to illustrate the design algorithm.

Then, based on the latent power theorem, the meshing efficiency equation of 2K-2H type planetary gear reducer is derived.

According to the meshing efficiency equation, the meshing efficiencies of 2K-2H type planetary gear reducers are analyzed.

The 2K-2H type planetary gear reducer has the following characteristics.

(1) There is a power circulation in 2K-2H type planetary gear reducer.

(2) Larger reduction ratio makes less meshing efficiency.

(3) For the same reduction ratio, larger value ξ42 (ξα) will get better meshing efficiency.

(4) For 2K-2H type planetary gear reducer, the quality of gears is an important factor.

(5) The efficiency of gears manufactured by grinding is only improved by 1.5%; however, meshing efficiency of 2K-2H type planetary gear reducer is improved by 28%~44.8%.