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Propeller for tilt rotor aircraft

A tilt-rotor and propeller technology, applied in propellers, aircraft parts, transportation and packaging, etc., can solve the problem of inability to guarantee the aerodynamic efficiency of tilt-rotor aircraft, achieve good comprehensive aerodynamic performance, improve flow state, and improve hovering efficiency Effect

Pending Publication Date: 2020-07-24
NORTH CHINA UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the propeller blades in a fixed state cannot guarantee good aerodynamic efficiency of the tilt rotor aircraft in both operating conditions

Method used

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  • Propeller for tilt rotor aircraft
  • Propeller for tilt rotor aircraft
  • Propeller for tilt rotor aircraft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figures 1 to 3 , 5, and 6, a propeller for a tilt rotor aircraft includes a blade 1 and a hub 2, the blade 1 is fixedly connected to the hub 2 through a rotating shaft 3, and the rotating shaft 3 can be relatively When the propeller hub 2 rotates, a torsion adjustment mechanism 12 is arranged inside the propeller hub 2, and the torsion adjustment mechanism 12 can adjust and control the rotation of the rotating shaft 3, thereby driving the propeller blade 1 to rotate; further, the The twist adjustment mechanism 12 includes a rocker arm 4, a cage 5, and a drive mechanism 6. The drive mechanism 6 is specifically an actuator. One end of the rocker arm 4 is fixedly connected to the rotating shaft 3, and the other end of the rocker arm 4 has a Follower column 7, the retainer 5 has a slot 8, the follower column 7 is located in the slot 8, the retainer 5 is fixedly connected to the drive mechanism 6, and the expansion and contraction of the drive mechanism 6 The movem...

Embodiment 2

[0030] Such as figure 1 , 4 As shown in and 6, on the basis of Embodiment 1, the upper surface root of the blade 1 is provided with air blowing holes 10, and the air blowing holes 10 are evenly distributed at the root position of the upper surface of the blade 1, and the air blowing holes 10 The specific number is specifically set according to actual needs, and also includes a blowing device (not shown in the figure), and the blowing device is connected with a blowing pipe (not shown in the figure), and the blowing pipe is aligned with the blowing hole 10, The air-flow that described blowing device blows out is blown out from described blowing hole 10 through described blowing pipe; figure 1 As shown, the root of the upper surface of the blade 1 is the position where the upper surface is close to the hub 2, the blowing device is arranged on the body outside the hub 2, and the blowing pipe passes through the inner space of the hub 2 and the rotating shaft 3, and extends into ...

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PUM

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Abstract

The invention relates to a propeller for a tilt rotor aircraft. The propeller comprises propeller blades and a propeller hub, the propeller blades are fixedly connected with the propeller hub througha rotating shaft, the rotating shaft can rotate relative to the propeller hub, a torsion adjusting mechanism is arranged in the propeller hub, and the torsion adjusting mechanism can adjust and control the rotating shaft to rotate so as to drive the propeller blades to rotate. The tilt rotor aircraft has good comprehensive aerodynamic performance, it is guaranteed that the tilt rotor / propeller canachieve good aerodynamic efficiency in the hovering state and the cruising state, and the tilt rotor / propeller can work reasonably and efficiently in the hovering state and the cruising state.

Description

technical field [0001] The present disclosure relates to the technical field of tilt-rotor aircraft, and in particular to a propeller for the tilt-rotor aircraft. Background technique [0002] Tilting rotor aircraft not only has the high-speed cruising capability that conventional helicopters do not have, but also has the vertical take-off and landing and hovering capabilities that fixed-wing aircraft do not have. The specific working state of the tilt-rotor aircraft can be described as: when the tilt-rotor aircraft is in the hovering state, the axis of the tilting-rotor / propeller is perpendicular to the fuselage, and the function of the propeller is equivalent to that of an ordinary helicopter, and the propeller in the hovering state provides lift. To overcome the gravity of the aircraft, so that the aircraft can hover in the air or move in the vertical direction; when the tilt-rotor aircraft is in the cruising state, the propeller tilts forward to play the role of the prop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C11/30B64C11/18
CPCB64C11/18B64C11/30
Inventor 闫文辉赵磊闫文静彭腾飞吴鹏穆杰
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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