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Upper beam, helicopter body and helicopter using the upper beam

A technology for helicopters and airframes, applied in the direction of fuselage frame, weight reduction, etc., can solve the problems that restrict the wide application and development of unmanned helicopters, low structural strength, high manufacturing cost, etc., to improve maneuverability and earthquake resistance, support and stability Superior performance and stable triangular support structure

Inactive Publication Date: 2017-11-17
张伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This airframe structure results in a narrow space, and has defects such as insufficient rigidity, low structural strength, relatively heavy weight, complex structure, high manufacturing cost, and difficulty in disassembly and maintenance.
Restricts the wide application and development of unmanned helicopters, model airplane helicopters or manned helicopter technologies

Method used

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  • Upper beam, helicopter body and helicopter using the upper beam
  • Upper beam, helicopter body and helicopter using the upper beam
  • Upper beam, helicopter body and helicopter using the upper beam

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Embodiment Construction

[0060] In order to describe the content of the present invention in more detail, specific embodiments will be introduced in detail in conjunction with the accompanying drawings.

[0061] The upper beam of a kind of helicopter body of the present invention, as figure 1 as shown, figure 1 It is a schematic diagram of the upper frame structure of a helicopter body of the present invention. The upper beam 3 includes a U-shaped member composed of a bridging portion 15 and two straight rod portions 14, and the two straight rod portions 14 are near the bridging portion 15. One end is bent or bent toward the same direction at the same position to form the bent structure 16 . The upper beam 3 is made of an aluminum bent pipe, and the bridging part 15 and the two straight rod parts 14 can be an integral structure, or can be a split structure assembled together by socket or other means when the body is larger.

[0062] The two straight rod parts 14 are bent or bent downward near the br...

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PUM

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Abstract

The invention discloses an upper beam, a helicopter airframe adopting the upper beam and a helicopter. The upper beam is a U-shaped component formed by two straight rod parts which are parallel to each other and a bridge joint part for connecting one ends of the two straight rod parts. The airframe is of a damping structure formed by mutual connection of an upper frame and a tripod through an engine assembly and a damper, the upper frame is of a rigid structure formed by the upper beam, a front beam, an upper bearing beam, supporting rods and a tail pipe through two pairs of middle beams with five connecting supporting arms, and three of the supporting rods are connected with three of the middle beams. A gearbox is positioned on the upper bearing beam. The airframe has the beneficial effects of being simple in structure, easy to manufacture, cost-saving, light in weight, good in rigidity, excellent in damping performance, easy for disassembling, assembling and maintenance, and the like.

Description

technical field [0001] The invention relates to an upper beam of an unmanned helicopter, an aeromodelling helicopter or a manned helicopter, and also relates to a helicopter body and a helicopter using the upper beam. Background technique [0002] As the central support mechanism of the helicopter, the helicopter body is responsible for supporting and fixing the engine and other components. It has the function of fixing and connecting them together, and plays the role of bearing and force transmission. Therefore, its entire body structure design makes it extremely rigid for an unmanned helicopter. [0003] At present, most of the body structures of unmanned helicopters, model airplane helicopters or manned helicopters in the prior art adopt side plate structure, and a few adopt bent pipe structure and skeleton structure. Among them, the side plate structure uses two side plates as the main frame of the fuselage to maintain its rigidity and force the side plates, such as Chi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C1/06
CPCY02T50/40
Inventor 张伟
Owner 张伟
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