Sealing structure capable of presetting clearance and fastening method
A technology of sealing structure and preset gap, applied in the direction of chord/longitudinal beam, aircraft parts, transportation and packaging, etc., can solve the problems such as gap is not controlled by structure, drilling accuracy cannot be guaranteed, etc., to achieve the effect of ensuring accuracy
Active Publication Date: 2019-12-03
BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC +1
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Problems solved by technology
However, the design of the sealing corners of the existing wing sealing ribs usually considers the sealing structure of the metal wall plate and the metal sealing ribs. The commonly used design schemes are as follows: figure 1 As shown, the gap between the seal corner piece and the stringer is not controlled by the structure
The existing technical scheme first makes the initial hole in the state of the wing rib, and then drills the final hole together with the wing rib and the sealing angle piece after the wing rib is put on the shelf. Since the sealing angle piece can move left and right, the drilling accuracy cannot be guaranteed.
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[0025] The technical scheme of the present invention will be further described below in conjunction with the drawings.
[0026] Such as figure 2 As shown, the embodiment of the present disclosure discloses a sealing structure with a preset gap, and the sealing structure with a preset gap includes a fixed structure and an auxiliary structure;
[0027] Wherein, the fixing structure is used to compress and limit the parts to be positioned, and to realize finishing holes on the surface of the parts to be positioned;
[0028] The auxiliary structure is used to assist the fixing structure in assisting the positioning of the parts to be positioned;
[0029] The side walls of the end faces where the fixing structure and the auxiliary structure cooperate with each other are provided with protrusions for preset clearance.
[0030] According to an embodiment of the present disclosure, the fixed structure includes a fixed body, one end of the fixed body is provided with a fixed working surface, th...
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The invention relates to a sealing structure capable of presetting a clearance during typical composite material wallboard and metal sealing wing rib connection. The sealing structure capable of presetting the clearance comprises a fixing structure and an auxiliary structure, wherein the fixing structure is used for pressing and limiting a part to be positioned and making a final hole in the surface of the part to be positioned; and the auxiliary structure is used for assisting the fixing structure to carry out auxiliary limiting on the part to be positioned, and the side wall of the end surface in which the fixing structure and the auxiliary structure are matched with each other is provided with an adjusting bulge for a presetting the clearance. According to the sealing structure capableof presetting the clearance, the technical scheme is adopted, the accuracy of drilling and assembling can be guaranteed through the adjusting bulge with preset thickness according to requirements on aworking surface of the sealing structure, and the gap clearance between a sealing angle sheet and a stringer web plate can be controlled through the adjusting bulge; and the sealing angle sheet adopts a glass fiber material to be lighter than an aluminum alloy material structure, and the lightning protection design requirements between a composite material stringer and the metal wing rib are met.
Description
Technical field [0001] The invention relates to a sealing structure and a fastening method for a preset gap when a typical composite material wall panel is connected with a metal sealing rib. Background technique [0002] The wing rib is an important part of the wing. The wing rib is located in the wing box of the aircraft wing, and the wing rib is connected with the upper and lower wall panels and the front and rear beams. The main purpose is to support the skin to maintain aerodynamic appearance and enhance the stability of the wall panel, spread the load to the wing box, and provide support for the system pipeline. The wing ribs connect the ribs and the wall panels and are mainly subjected to tensile and shear loads and fatigue loads. The wing fuel tank is divided into the center wing fuel tank, the fuel collecting tank, the outer wing fuel tank and the overflow fuel tank by the sealing rib. Therefore, the sealing of the sealing rib is extremely important for the wing fuel t...
Claims
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Login to View More IPC IPC(8): B64C3/18
CPCB64C3/185B64C3/187
Inventor 彭志琦周俊孙见卓白鸿博石林李同肖志鹏王栋刘传军
Owner BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC