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A coaxial double-rotor helicopter transmission device with cylindrical gear shunt

A technology of coaxial double rotors and cylindrical gears, which is applied in the direction of transmission, transmission parts, rotorcraft, etc., can solve the problems of the last stage transmission with unbalanced load, and achieve the effect of reducing volume, easy implementation and reducing complexity

Active Publication Date: 2022-08-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention proposes a cylindrical gear splitter that can combine the advantages of small size, compact structure, and reasonable space layout while solving the problems of partial load in the power transmission process and the relatively small final stage of transmission. Road coaxial twin-rotor helicopter transmission

Method used

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  • A coaxial double-rotor helicopter transmission device with cylindrical gear shunt
  • A coaxial double-rotor helicopter transmission device with cylindrical gear shunt
  • A coaxial double-rotor helicopter transmission device with cylindrical gear shunt

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Embodiment Construction

[0031] In order to clearly illustrate the technical features of the present patent, the present patent will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0032] The present invention is as Figure 1-3 As shown, it includes the bevel gear power confluence transmission unit, the spur gear power division transmission unit, the spur gear power confluence transmission unit and the output unit all adopting the fixed axle gear train; The power is divided and decelerated by the cylindrical gear power splitting transmission unit to the power splitting gear shaft, and the split power is merged through the cylindrical gear power converging transmission unit, and is output to the inner rotor shaft and the outer rotor shaft in the output unit;

[0033] The bevel gear power converging transmission unit includes a first-stage reversing bevel gear pair and a second-stage power converging bevel gear pair;

[0034]The first-stage...

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Abstract

The utility model relates to a coaxial double-rotor helicopter transmission device with cylindrical gear branching. The invention relates to the field of configuration of the transmission system of a coaxial twin-rotor helicopter. A coaxial dual-rotor with spur gears is proposed, which can solve the problems of eccentric load in the process of power transmission and the relatively small transmission of the last stage, and can combine the advantages of small size, compact structure and reasonable space layout. Helicopter transmission. It includes bevel gear power converging transmission unit, cylindrical gear power dividing transmission unit, cylindrical gear power converging transmission unit and output unit; the converging and dividing gear shaft and the inner rotor shaft and the outer rotor shaft in the output unit are coaxial. The invention has high overall technical maturity, simple structure and high reliability, reduces the weight and volume of the transmission system, and satisfies the requirement of high power-to-weight ratio.

Description

technical field [0001] The invention relates to the field of configuration of a coaxial dual-rotor helicopter transmission system, in particular to a coaxial dual-rotor helicopter transmission device with cylindrical gear shunt. Coaxial reversing coaxial reversing twin-rotor helicopter transmission system configuration. Background technique [0002] Traditional single-rotor helicopters mostly use a single-rotor with tail rotor layout, which has many configurations, and the tail rotor is only used to balance the torque generated by the rotor, and does not generate forward thrust, which cannot meet the increasing speed requirements of helicopters. Compared with a single-rotor helicopter, the coaxial twin-rotor helicopter rotates at the same speed in the opposite direction of the upper and lower rotors, which can offset the torque by itself and achieve balance. The precise control of the rotation speed also makes the transmission system more complicated. [0003] At present, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C27/12B64C27/10F16H37/06F16H57/023
CPCB64C27/12B64C27/10F16H37/065F16H57/023F16H2057/02086F16H2057/02091
Inventor 闫卫平朱如鹏李苗苗扶碧波谭武中
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS