And the formula for calculating the whole efficiency of the reduction is established. Through the experimental verification of efficiency, the formula established in this paper for calculating the gearing efficiency has a higher accurary. Both theoretic analysis and experiments have verified that the internal bevel gear drive with few teeth difference possesses high transmission efficiency.
2,tooth number of the ring gear Z and dimension coefficient K etc. Pointed out the measures and approachs which improveed the mesh efficiency under the transmission performance and the structure request.
The formulae of the relation of forces acting at the teeth of the wave gear and the engaging efficiency are derived, which are the basis to improve the strength, efficiency and to select optimum parameters.
By adopting the Kpe ec method this paper derived engaging efficiency formulae for the planetary transmission with internal planet gears,analyzed factors influencing the engaging efficiency,gave out the self-locking conditions when this transmission is used in speeding-up and obtained some conclusions possessing practical significance.