Planetary reducer

Abstract

The invention discloses a planetary reducer comprising a first-grade center gear, a second-grade center gear, a third-grade center gear, a first-grade planet gear, a second-grade planet gear, a third-grade planet gear, a first-grade planet carrier, a second-grade planet carrier, a third-grade planet carrier, an inner ring gear and a first-grade inner ring gear. One end of the first-grade center gear is installed together with a spline shaft through a three-piece clamp ring in an embedded manner. The first-grade center gear is provided with a clamping groove. The three-piece clamp ring is arranged in the clamping groove. The first-grade center gear is connected with a stop sheet. A gap is formed between the three-piece clamp ring and the stop sheet. A gap exists between the other end of thefirst-grade center gear and the end face of the first-grade inner ring gear. The gap between the first-grade center gear and the first-grade inner ring gear is larger than the gap between the three-piece clamp ring and the stop sheet. The right end of the first-grade center gear is in the floating state. It is avoided that the left end face of the first-grade center gear and the right end of thesecond-grade center gear generate sliding friction, sliding friction between the gear right end face of the first-grade center gear and the first-grade inner ring gear is avoided, and friction loss and friction heat are reduced.

Description

technical field [0001] The invention relates to the technical field of reducers, in particular to a planetary reducer. Background technique [0002] Shell-rotating planetary reducers are widely used in construction machinery, marine machinery and military machinery, and have been used by key domestic construction machinery manufacturers. A large number of applications such as figure 1 The total number of planetary reducers shown is not less than several hundred million units at home and abroad. Most of the transmission power is greater than 100kW. How to improve the transmission efficiency of the illustrated reducer has very important practical economic and social significance for energy saving and emission reduction, and this patent is proposed to achieve this purpose. It can increase the transmission efficiency of this planetary reducer by 0.5% to 1.5%. Calculated on an average increase of 1%, if it is fully popularized and applied, the total energy saving will reach 10...

AI Technical Summary

Problems solved by technology

The baffle and the first-level center wheel 1 are fixed together, and the baffle and the second-level center wheel 6 rub at high speed. The friction is sliding friction, and the high-speed friction between the first-level center wheel 1 and the cylindrical pin 11 makes the reducer heat up, and the transmission efficiency is low.

Images