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Vertical lifting-falling low-altitude civil rotary-wing aircraft roof propeller structure

A vertical lift and rotorcraft technology, applied in the field of rotorcraft, can solve the problems of airflow impact on the wings and fuselage, affecting the flight safety of the aircraft, and achieve the effect of reducing airflow impact and ensuring flight safety

Inactive Publication Date: 2015-06-03
无锡市明珠烤漆厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The vertical lift and low-altitude civilian rotorcraft is a low-altitude civilian aircraft. The top wing provides power for the aircraft to rise through the rotation of the top propeller when it takes off. If it is large, it will cause a large airflow impact on the wings and fuselage of the aircraft, which will affect the flight safety of the aircraft.

Method used

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  • Vertical lifting-falling low-altitude civil rotary-wing aircraft roof propeller structure
  • Vertical lifting-falling low-altitude civil rotary-wing aircraft roof propeller structure
  • Vertical lifting-falling low-altitude civil rotary-wing aircraft roof propeller structure

Examples

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Embodiment Construction

[0010] See figure 1 , figure 2 and image 3 As shown, a top propeller structure of a vertical lift and low-altitude civil rotorcraft includes a base propeller 1, which is arranged on a base propeller seat 2, an end propeller 3 is set on the base propeller 1, and an adjustment The screw tube 5 and the end paddle 3 are provided with an adjusting bolt 4 that cooperates with the adjusting screw tube 5. The adjusting screw tube 5 is connected to the rotating shaft 6, and the rotating shaft 6 drives the adjusting screw tube 5 to rotate, driving the adjusting screw 4 to move linearly, realizing The extension and contraction of the end propeller 3 realizes vertical lifting and lowering. The end propeller stretches out when the civil rotorcraft takes off, and the end propeller retracts during normal flight or storage, which ensures the normal take-off of the aircraft and can effectively reduce the impact on the wings of the aircraft. The impact of the airflow with the fuselage ensur...

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PUM

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Abstract

The invention provides a vertical lifting-falling low-altitude civil rotary-wing aircraft roof propeller structure having simple structure; a roof propeller is telescopic, the airflow impact on two aircraft wings and an aircraft body can be effectively reduced, and the flight safety of an aircraft can be ensured. The vertical lifting-falling low-altitude civil rotary-wing aircraft roof propeller structure is characterized by comprising a base propeller, wherein the base propeller is arranged on a base propeller seat, the base propeller is sleeved with an end propeller, the base propeller is internally provided with a regulating screw tube, and the end propeller is provided with a regulating bolt matched with the regulating screw tube.

Description

technical field [0001] The invention relates to the technical field of rotorcraft, in particular to a top propeller structure of a vertical lift and low-altitude civil rotorcraft. Background technique [0002] The vertical lift and low-altitude civilian rotorcraft is a low-altitude civilian aircraft. The top wing provides power for the aircraft to rise through the rotation of the top propeller when it takes off. If it is too large, it will cause a large airflow impact on the wings and fuselage of the aircraft, which will affect the flight safety of the aircraft. Contents of the invention [0003] In view of the above problems, the present invention provides a vertical lifting and lowering civil rotorcraft top propeller structure, which is simple in structure, and the top propeller is retractable, which can effectively reduce the airflow impact on the two wings and the fuselage of the aircraft when the aircraft is flying normally. Ensure the flight safety of the aircraft. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C11/28B64C27/46
Inventor 高锡民
Owner 无锡市明珠烤漆厂
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