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Rotor shaft assembly, final drive and aircraft

A rotor shaft and aircraft technology, applied in the field of aircraft, can solve the problems of affecting flight safety, reducing the reliability of the planetary carrier, and the planetary carrier being easily affected by the rotor load, etc. Effect

Active Publication Date: 2020-02-04
AECC HUNAN AVIATION POWERPLANT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this structure is that the planetary carrier is easily affected by the rotor load, which reduces the reliability of the planetary carrier and even affects flight safety

Method used

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  • Rotor shaft assembly, final drive and aircraft
  • Rotor shaft assembly, final drive and aircraft
  • Rotor shaft assembly, final drive and aircraft

Examples

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Embodiment Construction

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the present disclosure. However, one skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, materials, devices, etc. may be employed. In other instances, well-known solutions have not been shown or ...

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Abstract

The invention provides a rotor shaft assembly, an aircraft transmission system main speed reducer provided with the rotor shaft assembly and an aircraft provided with the aircraft transmission systemmain speed reducer. The rotor shaft assembly comprises a shaft body, a planetary frame arranged at one end of the shaft body, and at least one deformation compensating part, wherein the deformation compensating part is formed on a position, between the two ends of the shaft body, of the shaft body. The rotor shaft assembly reduces load, borne in a working process, of the planetary frame, reduces influences on the planetary frame, and improves stability of the planetary frame; and meanwhile, the deformation compensating part enables the planetary frame to generate micro displacement in a radialdirection in a working process, so that a contact state between each planetary gear and a solar wheel trends to be consistent, and therefore, uniform-load performances of the planetary gears are improved.

Description

technical field [0001] The invention relates to the field of mechanical engineering, in particular to a rotor shaft assembly, an aircraft transmission system main reducer with the rotor shaft assembly, and an aircraft with the aircraft transmission system main reducer. Background technique [0002] As one of the most distinctive creations of aviation technology in the 20th century, helicopters are widely used in military transportation, patrol, tourism, rescue and other fields. The three key moving parts are the helicopter transmission system, rotor system and engine. As the main power and load transmission parts of the main reducer of the transmission system, the performance of the rotor shaft assembly is of great significance to the transmission system. [0003] At present, there are only locating pins or splines between the main reducer planetary carrier and the rotor shaft in domestic research and service. The main disadvantage of this structure is that the planet carri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C3/02F16H57/08F16H57/00B64C27/12B64C27/32
CPCB64C27/12B64C27/32F16C3/02F16H57/0006F16H57/0037F16H57/082
Inventor 张志龙孙炫琪蔡智杰张燕李雅娜尹伟杰
Owner AECC HUNAN AVIATION POWERPLANT RES INST