Method for lubricating end face of sun gear of multi-stage planetary transmission gear box

• Main Authors: CHEN WEI, LIANG ZHIWEI, DENG FENG, LI DAIGE, FANG CHUANYUN
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention belongs to the technical field of gearbox lubrication, and relates to a multi-stage planetary transmission gearbox sun gear end face lubrication method, which is characterized in that fan-shaped lubrication oil cavities are arranged on contact end faces of relative rotation between all stages of sun gears in a multi-stage planetary transmission gearbox and between the sun gears and an output shaft; the multiple lubricating oil cavities are distributed on the contact end face in a circular array mode. Oil grooves are formed in the two sides of the lubricating oil cavity and used for feeding and discharging lubricating oil. The concave depth of the lubricating oil cavity is gradually deepened from the two sides of the sector to the middle, so that a wedge-shaped space is formed; the contact end faces are lubricated by utilizing the extrusion effect on lubricating oil in the lubricating oil cavity when the contact end faces rotate relatively. The end faces of all stages of sun gears and the end fac