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Composite propulsion helicopter transmission system

A transmission system and helicopter technology, applied in the field of aircraft transmission, can solve the problems of poor transmission performance, low reliability, and large vibration of aero piston engines.

Inactive Publication Date: 2021-09-14
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a compound propulsion helicopter transmission system, which solves the problems of the prior art such as large vibration, low reliability, and poor transmission performance of the aviation piston engine when starting without load

Method used

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  • Composite propulsion helicopter transmission system
  • Composite propulsion helicopter transmission system
  • Composite propulsion helicopter transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like Figure 1 to Figure 3 As shown, a compound propulsion helicopter transmission system includes a main rotor transmission system, a two-wing propeller transmission system drivingly connected to the main rotor transmission system, and is characterized in that it also includes a belt transmission system. Main rotor drive system drive connection.

[0041] The whole transmission system is divided into three parts: the belt transmission system, the main rotor transmission system and the two-wing propeller transmission system; the main rotor transmission system can divide the power transmitted by the belt transmission system, so that the power is transmitted to the main rotor transmission system and the two-wing propellers respectively. drivetrain. Therefore, the transmission system has an input of one power source and an output of three power sources. The helicopter transmission system has more reliable transmission performance, higher transmission efficiency and smooth...

Embodiment 2

[0055] like Figure 1 to Figure 3 As shown, as a further optimization of Embodiment 1, this embodiment includes all the technical features of Embodiment 1. In addition, this embodiment also includes the following technical features:

[0056] As a preferred technical solution, the two-wing propeller transmission system includes a front diaphragm coupling 401, a long shaft 402, a rear diaphragm coupling 403, a two-wing reversing output bevel gear 408, and a two-wing propeller shaft 410. Interference connection and pin protection are used between the reversing output bevel gear shaft 204 on both sides and the front diaphragm coupling 401 , and the long shaft 402 is between the front diaphragm coupling 401 and the rear diaphragm coupling 403 An interference connection and pin protection are adopted, and an interference connection is adopted between the two-wing reversing output bevel gear 408 and the two-wing propeller shaft 410 .

[0057] This makes the transmission performance ...

Embodiment 3

[0063] like Figure 1 to Figure 3 As shown, on the basis of Embodiment 1 and Embodiment 2, this embodiment provides a more refined embodiment:

[0064] The present invention provides a composite propulsion helicopter transmission system, including a belt transmission system, a main rotor transmission system and a two-wing propeller transmission system, wherein: the belt transmission system is composed of a lower pulley 101, a transmission belt 102 (in this embodiment, a continuous group of triangles toothed belt), lower self-aligning bearing 103, actuator lower bearing seat 104, actuator 105, upper bearing seat support rod 106, actuator upper bearing seat 107, upper self-aligning bearing 108, upper bearing seat support lug 109 , an overrunning clutch 110 and an upper pulley 111; the main rotor drive system consists of a main reducer shaft 201, a main reducer shaft front support bearing 202, two sides reversing input bevel gears 203, two sides reversing output bevel gear shafts...

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Abstract

The invention discloses a composite propulsion helicopter transmission system which comprises a main rotor transmission system and a two-wing propeller transmission system in transmission connection with the main rotor transmission system, and further comprises a belt transmission system in transmission connection with the main rotor transmission system. The problems that an aviation piston engine is large in vibration, low in reliability, poor in transmission performance and the like during non-load starting in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of aircraft transmission, in particular to a compound propulsion helicopter transmission system. Background technique [0002] As one of the three key moving parts of a high-speed helicopter, the transmission system directly affects the performance of the entire helicopter, and is an indispensable power transmission component for the power output of the helicopter engine. The main function of the conventional helicopter transmission system is to transmit the power and speed of the engine to the main rotor, propeller and other accessories of the helicopter according to a certain transmission ratio to make the helicopter work normally. Conventional helicopters provide ascending power through the main rotor and provide forward power by adjusting the inclination of the rotor. Reliable air transportation, and composite propulsion helicopters is one of the development directions of future helicopters. At the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/06F16H7/14F16H57/08F16H57/04B64D35/00B64D35/04
CPCF16H37/06F16H7/14F16H57/082F16H57/0412B64D35/00B64D35/04
Inventor 黄明其何龙王亮权张卫国徐栋霞阳鹏宇尹欣繁杨仕鹏
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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