Lubricating structure for large-specific-work spline of aero-engine transmission device

• Main Authors: WANG XIANLIANG, WANG YONGMING, OU DAISONG, ZHU JIAZAN, CHANG CHENG, LI GAOMENG, WANG ZENG, HUANG HONGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention provides a lubricating structure for a large-specific-work spline of an aero-engine transmission device, the lubricating structure comprises an inner spline shaft and an outer spline shaft which are matched with each other, a dovetail groove is formed in one end, close to a lubricating oil inlet, of the inner spline shaft, and an oil discharge hole for discharging lubricating oil is formed in the other end of the inner spline shaft; a rubber oil blocking dam used for blocking oil is arranged in the dovetail groove, and the inner diameter of the rubber oil blocking dam is smaller than the small diameter of the outer spline. The oil supply injection point of the lubricating structure is close to the spline, and the defect that the lubricating effect is affected due to the long injection distance of an existing structure is overcome; oil supply and oil return are on different sides, a lubricating flow path is smooth, and chip removal is not affected; the other side in the hollow shaft can be design