Coaxial counter-rotating helicopter transmission system lubrication structure and helicopter

Abstract

The invention discloses a lubricating structure for a coaxial counter-rotating helicopter transmission system, which 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 support, and the inner rotor shaft assembly is provided with an inner shaft The two ends of the inner shaft sleeve are sealed and connected with the inner rotor shaft assembly to form an oil guide channel between the outer circumferential wall surface of the inner shaft sleeve and the inner circumferential wall surface of the inner rotor shaft assembly, and the inner rotor shaft assembly is provided with an outlet channel and the inlet channel, the outlet channel and the inlet channel are respectively communicated with the oil guide channel, and the lubrication structure of the coaxial counter-rotating helicopter transmission system also includes a sealed oil guide device, and the inner rotor shaft assembly is rotatably arranged relative to the sealed oil guide device. The invention also provides a helicopter. The lubricating structure of the coaxial counter-rotating helicopter transmission system of the present invention avoids the conventional technical problem of poor lubrication caused by spraying lubricating oil from the static parts so that the lubricating oil cannot be fully sprayed onto the rotating support.

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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