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Vertical-lifting device with combined propellers

A technology of combined propellers and blades, which is applied in transportation and packaging, rotorcraft, aircraft, etc., can solve the problems of rare application examples of cycloidal propellers, reduce the overall size of the airframe and shipboard space, and improve the structure Strength, the effect of shortening the blade length

Inactive Publication Date: 2014-06-18
郑全逸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Propellers based on the principle of cycloidal propellers have been applied in the marine field to a certain extent, and are generally called flat-rotating propellers, straight-wing propellers or omnidirectional propellers, but in the aviation field, there are not many application examples of cycloidal propellers See

Method used

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  • Vertical-lifting device with combined propellers
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  • Vertical-lifting device with combined propellers

Examples

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Embodiment Construction

[0039] Preferred embodiments of the present invention are given below and described in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, an orthogonal rotation mechanism of a helicopter with combined blades includes: a vertical shaft 1, a rotor hub 2, a fixed bevel gear 3, a revolution shaft sleeve 4, a revolution drive wheel 5, a thrust bearing 6, and a buffer spring 7 , vertical shaft seat 8, rotation shaft sleeve 9, blade shaft 10 and movable bevel gear 11; wherein, the lower end of the vertical shaft 1 is fixedly connected with the helicopter body by means of the vertical shaft seat 8, and the fixed bevel gear with the tooth shape facing downward is fixed on the top coaxial line 3. The revolving bushing 4 is rotatably matched with the vertical shaft 1, and the outer part of the former is fixed with the coaxial rotor hub 2 and the revolving drive wheel 5 from top to bottom, and the lower end is equipped with a thrust bearing 6 supported on the ...

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Abstract

The invention aims at disclosing a mechanism with revolution and autorotation around an orthogonal axis and five types of vertical-lifting devices with combined propellers. Since the combined propellers for generating lifting force are still driven by a main engine, the vertical-lifting device belongs to the series of helicopters, but the principle for generating the lifting force not only includes the part based on the wing theory, but also includes the part based on the Magnus effect, while the structure for generating the lifting force not only has the part that the whole combined propellers carry out revolution around the vertical shaft (fixed shaft), but also has the part that rotary parts in the combined propellers carry out autorotation around a propeller shaft (movable shaft), or utilizes the principle of an anemometer to realize autorotation of the rotary part in the combined propeller. The five types of combined propellers comprise a rotary-drum type, a flap-rod type, a fan-wing plane type, a roller-wing type and a wind-cup type. Each set of vertical-lifting device is provided with the same type of combined propellers, the quantity of the combined propellers is equal to that of propeller shafts arranged on a rotary wing hub and is 2-4. The vertical-lifting device has the beneficial effects that various principles for generating the lifting force are fully utilized, and the length of propellers of the existing helicopter is shortened, so that the strength and the lifting force are improved.

Description

technical field [0001] A helicopter with combined blades is a supplement and improvement to the existing helicopter vertical take-off and landing principle and structure, and belongs to the field of helicopter rotors and blades. Background technique [0002] The current aeronautical technology still mainly relies on the classical wing theory, and mature models mainly include fixed-wing and rotary-wing. The design theory of the former is quite mature, and the size, weight, speed and flying height of the whole machine have reached an amazing level. However, although the helicopters belonging to the latter have shown their talents in the military field where cutting-edge technologies gather, some shortcomings are still there. obviously. [0003] The present invention is concerned with the low efficiency of helicopter rotor blades. According to information, the blades of a general helicopter range from 2 to 8, or even double-layer, and the total effective area that interacts w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/32
Inventor 郑全逸
Owner 郑全逸
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