Lubrication branch of planetary gear train

Abstract

The invention relates to a lubrication branch of a planetary gear train. The branch comprises a box body oil path, planet carrier oil paths and a planet wheel hinge pin oil path, wherein a mounting hole of a planet carrier shaft neck is formed in a box body; the oil outlet hole of the box body oil path is formed in the mounting hole of the planet carrier shaft neck; the planet carrier oil paths comprise an axial oil path and a radial oil path which are communicated with each other; the oil outlet hole of the box body oil path is communicated with the oil inlet hole of the axial oil path of the planet carrier oil paths through a combined annular oil path; the combined annular oil path comprises a fixed sliding ring and a moving sliding ring; the fixed sliding ring is positioned in the box body on the inner side of the oil outlet hole of the box body oil path; the moving sliding ring is positioned on the planet carrier shaft neck of the planet carrier shaft neck; after being assembled, the moving sliding ring is positioned on the outer side of the oil outlet hole of the box body oil path; the distance between the inner walls of the fixed sliding ring and the moving sliding ring is larger than the diameter of the oil outlet hole of the box body oil path; the inner wall of the mounting hole of the planet carrier shaft neck of the box body, the outer wall of the planet carrier shaft neck and the inner walls of the fixed sliding ring and the moving sliding ring are arranged in a surrounding manner to form an annular oil path.

Description

technical field [0001] The invention relates to a lubrication branch of a planetary gear train. Background technique [0002] The shifting principle of the planetary gear system actually follows the principle of gear shifting. It has a gear with a fixed axis position called a center wheel or a sun gear. There are planetary gears with a variable axis on the side of the sun gear. The planetary gear supports the planet carrier. That is to rotate and revolution. During work, the planet carrier is also responsible for the power transmission function. Due to the existence of planet carrier support bearings in the planetary gear train, multiple parts such as the planet wheel support bearings, and the meshing teeth of the planet gear and the sun gear need to be lubricated. [0003] Since the lubrication branch of the planetary gear train generally includes a stationary tank oil passage and a moving planetary carrier oil passage, the transition connection between the tank oil passa...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to: aim at the fact that there are many consumables in the lubrication branch of the existing planetary gear system through the "L" shaped oil ring to realize the dynamic and static transition connection in the lubrication branch, the processing difficulty is large, and the installation accuracy is high. problem, providing a new lubrication branch for the planetary gear train

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