Coaxial contra-rotating helicopter transmission system lubricating structure and helicopter

Abstract

The invention discloses a coaxial contra-rotating helicopter transmission system lubricating structure. The coaxial contra-rotating helicopter transmission system lubricating structure comprises an inner rotor shaft assembly and an outer rotor shaft, the outer rotor shaft is supported on the inner rotor shaft assembly through a rotating supporting piece, and an inner shaft sleeve is arranged in the inner rotor shaft assembly. The two ends of the inner shaft sleeve are connected with the inner rotor shaft assembly in a sealed mode, so that an oil guide channel is formed between the circumferential outer wall face of the inner shaft sleeve and the circumferential inner wall face of the inner rotor shaft assembly, an outlet channel and an inlet channel are formed in the inner rotor shaft assembly, and the outlet channel and the inlet channel separately communicate with the oil guide channel. The coaxial contra-rotating helicopter transmission system lubricating structure further comprises a sealing oil guide device, and the inner rotor shaft assembly is rotatably arranged relative to the sealing oil guide device. The invention further provides a helicopter. According to the coaxial contra-rotating helicopter transmission system lubricating structure, the technical problem of poor lubrication caused by the fact that lubricating oil cannot be comprehensively sprayed to a rotating supporting piece due to the fact that the lubricating oil is sprayed from a static part for lubrication in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of coaxial counter-rotating dual-rotor helicopters, in particular to a lubrication structure for a transmission system of a coaxial counter-rotating helicopter. The invention also relates to a helicopter. Background technique [0002] In the coaxial counter-rotating dual-rotor helicopter transmission system, both the inner rotor shaft assembly and the outer rotor shaft are rotor parts, and the bearing between the inner rotor shaft assembly and the outer rotor shaft (the inner ring of the bearing cooperates with the inner rotor shaft assembly, the bearing The inner ring and the outer ring of the outer ring and the outer rotor shaft are all rotating parts, and the bearing is located between the two moving parts. [0003] At present, the lubrication method used in the helicopter transmission system is generally to install nozzles in the static parts (such as the casing), and spray oil through the nozzles to lu...

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Problems solved by technology

[0004] The lubricating structure of the transmission system of the coaxial counter-rotating helicopter provided by the present invention solves the problem of the rotating support between the two moving parts caused by the conventional lubrication structure of the coaxial counter-rotating helicopter transmission system using the traditional direct oil injection lubrication from the static part. Technical problems with poor lubrication and cooling

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