CN202686753U - Cockpit cover door frame for helicopter - Google Patents

Abstract

The utility model relates to the field of design of helicopters, and provides a cockpit cover door frame for a helicopter. The quadrilateral cockpit cover door frame for the helicopter is encircled by three pipe beams and a U-shaped structural component, wherein each pipe beam and the U-shaped component are sunken along the length direction so as to be matched with a cabin door to meet a theoretical shape requirement; the left side of the door frame is a foam sandwich plate which is formed by connecting an upper pipe beam and a left pipe beam; the foam sandwich plate is connected with the front frame of the helicopter; the lower side of a lower pipe beam is a laminated plate which is connected with the lower component of the helicopter; the right side of the door frame is provided with a U-shaped structure which is connected with a back door frame or a window frame. By utilizing the cockpit cover assembled by the cockpit cover door frame, connecting pieces such as joints required for assembling a separated cockpit cover are greatly reduced, the assembly process is simplified, the weight of the structure is reduced, the rigidity of the cockpit cover is greatly improved, and the total cost is reduced.

Description

Helicopter cockpit cover doorframe

Technical field

The utility model relates to the helicopter design field, relates in particular to a kind of helicopter cockpit cover doorframe.

Background technology

The version of existing helicopter cockpit cover doorframe all is separation design, and namely warm glue riveting (splicing adds the laggard stove of riveted joint and solidifies) method manufacturing forms in the employings such as composite material forming Guan Liang, composite material laminated board (covering), honeycomb structure shaping plate and multiple material joint.This kind version Guan Liang, ply wood, honeycomb structure profiled sheeting etc. all are the part of making separately moulding, and quantity is many, and need the position coordinating, cooperate more when assembling, and assembly quality is difficult the assurance, and it is many to expend man-hour, and weight is large; Driving compartment cover bulk deformation also is difficult to control, often is difficult to and the fuselage assembling.

The utility model content

The technical problems to be solved in the utility model: the utility model provides the whole co-curing of a plurality of sealed tube beams of a kind of composite material and sandwich structure, lightweight, assembly difficulty is little, rigidity is large, deflection is very little helicopter cockpit cover doorframe.

The technical solution of the utility model: a kind of helicopter cockpit cover doorframe, the integral body of helicopter cockpit cover doorframe surrounds a quadrangle with three Guan Liang and a U-shaped framing member, each Guan Liang and U-shaped elongatedness direction are made sagging, meet theoretical shape requirement so that cooperate to install with hatch door; The doorframe left side is the foam layer plate that links together with upper Guan Liang and left Guan Liang, and links to each other with frame before the fuselage; Lower pipe beam downside is ply wood, is connected with the fuselage lower member; The right side is U-shaped structure, is connected with rear door frame or window frame.

The beneficial effects of the utility model: the more existing separation type driving compartment of the driving compartment cover cover structure that this driving compartment cover doorframe assemblies forms, and obvious advantage is arranged.Owing to be Guan Liang and foam layer plate, ply wood hybrid structure, the attaching parts such as needed joint has been simplified fitting process when having greatly reduced the cover assembling of separation type cabin, has reduced structural weight, and the rigidity of driving compartment cover is improved greatly, has reduced total cost.This kind version is suitable for various intensity, rigidity requirement, and satisfies aviator's visual field requirement.The utility model can widespread use on the helicopter cockpit cover.

Description of drawings

Fig. 1 is the utility model co-curing scheme drawing.

Fig. 2 is pipe beam 1 section-drawing among Fig. 1.

Fig. 3 is pipe beam 2 section-drawings among Fig. 1.

Fig. 4 is pipe beam 3 section-drawings among Fig. 1.

Fig. 5 is U-shaped structure 4 section-drawings among Fig. 1.

Fig. 6 is the utility model structure example figure.

The specific embodiment

Driving compartment cover doorframe as shown in Figure 1, by upper pipe beam 1, left pipe beam 2, lower pipe beam 3, U-shaped structure 4, foam layer plate 5, ply wood 6, foam 7 global formations form.Three Guan Liang are hollow structure, and pipe beam 2,3 all is that uniform cross section is long-pending, considers both to guarantee that enough large space is arranged in the driving compartment, makes again doorframe have enough large rigidity, and in addition for easily manufactured, pipe beam section direction length and width size is between 30mm-40mm; For increasing the rigidity at covering place, the front end area of pipe beam 2 is designed to foamed sandwich structure 5(section as shown in Figure 3); Pipe beam 1 front end shape is comparatively complicated, adopt the form moulding (foam 7 does not take out behind the curing molding) of folder foam among the Guan Liang, follow the theoretical profile of hyperbolic, pipe beam cross-sectional area elongatedness is gradually large to opening direction, according to thickness of glass, pipe back section is designed to sink (referring to 6e face and Fig. 2 of Fig. 6) of certain size; According to hatch door size and theoretical shape requirement, the size of sinking around determining is smoothly molding after the assurance moulding, and the place of will sinking is designed to certain angle (section as shown in Figure 3); Pipe beam 3 downsides are designed to ply wood 6(section as shown in Figure 4), be connected with airframe structure; The right side is designed to U-shaped structure 4(section as shown in Figure 5), be connected with rear side driving compartment cover doorframe or window frame.

(6a, 6b face such as Fig. 6 are installed cabin door lock at doorframe, at the 6c face door-down switch strut is installed, at the 6d face two hinge seats are installed, the installation place is designed to sink and opening, the handle of boarding is installed in the inside at pipe beam 1(section as shown in Figure 2), each face is because the stressing conditions different designs has become different thickness, and each face has carried out local reinforcement (increasing the laying number of plies realizes) owing to stress area and the stressed order of severity is different.

In order to guarantee the pneumatic effect of good flight, the whole surface of doorframe is parallel with the theoretical profile of fuselage, so Guan Liang will be parallel to theoretical profile with the face that door cooperates; The pipe beam face that cooperates with windshield is parallel with upper theoretical profile also, and is good with the visual field that guarantees windshield place chaufeur.

Claims (1)

1. helicopter cockpit cover doorframe, it is characterized in that, the integral body of helicopter cockpit cover doorframe surrounds a quadrangle with three Guan Liang and a U-shaped framing member, and each Guan Liang and U-shaped elongatedness direction are made sagging, meets theoretical shape requirement so that cooperate to install with hatch door; The doorframe left side is the foam layer plate that links together with upper Guan Liang and left Guan Liang, and links to each other with frame before the fuselage; Lower pipe beam downside is ply wood, is connected with the fuselage lower member; The right side is U-shaped structure, is connected with rear door frame or window frame.

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