Asymmetric environment load resistant connecting structure

Abstract

The invention belongs to the technical field of airborne equipment mounting structure design, and particularly relates to an asymmetric environment load resistant connecting structure. According to the structure, a main mounting plate is of an asymmetric structure, the main mounting plate is provided with a first plate face and a second plate face, a plurality of transverse ribs and vertical ribs are arranged on the first plate face, and the second plate face is used for mounting airborne equipment; the corner boxes comprise the first corner box and the second corner box, the first corner box is installed at one end of the first plate face in a connected mode, the second corner box is installed at the other end of the first plate face in a connected mode, and the main installation plate is connected with a machine body structure through the first corner box and the second corner box. One end of the cross beam is connected with the first corner box, and the other end of the cross beam is connected with the second corner box. According to the asymmetric environmental load resistant connecting structure, the problem of installation of large-weight suspension airborne equipment can be solved, and the problem of deformation and incoordination caused by asymmetric environmental loads can be avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of airborne equipment installation structure design, and in particular relates to a connection structure resistant to asymmetric environmental loads. Background Art

[0002] When designing airborne equipment installation structures, in order to meet the needs of different shapes, aluminum alloy materials are often used to design and match the structure to meet the requirements of the onboard installation environment. However, when the environmental load is asymmetric, there is an overturning moment for the airborne equipment installation structure and the connecting structure on the aircraft. Therefore, conventional profiles or sheet metal parts cannot simultaneously meet the mechanical environment requirements of deformation coordination. The design problem of airborne equipment installation structures considering overturning moments needs to be solved urgently.

[0003] Therefore, it is desired to have a technical solution to overcome or at least alleviate at least one of the above-mentioned defects of the prior art. Summary of the invention

[0004] The purpose of the present application is to provide a connection structure resistant to asymmetric environmental loads, so as to solve at least one problem existing in the prior art.

[0005] The technical solution of this application is:

[0006] A connection structure resistant to asymmetric environmental loads, comprising:

[0007] The main mounting plate is an asymmetric structure, and has a first plate surface and a second plate surface, wherein the first plate surface is provided with a plurality of transverse ribs and vertical ribs, and the second plate surface is used for mounting airborne equipment;

[0008] A corner box, the corner box comprising a first corner box and a second corner box, the first corner box being installed at one end of the first panel surface and connected, the second corner box being installed at the other end of the first panel surface and connected, the main mounting plate being connected to the machine body structure through the first corner box and the second corner box;

[0009] A crossbeam, one end of which is connected to the first corner box, and the other end of which is connected to the second corner box.

[0010] In at least one embodiment of the present application, the main mounting plate is connected to the onboard equipment by bolts, the corner box is connected to the main mounting plate and the fuselage structure by bolts, and the crossbeam is connected to the corner box by bolts.

[0011] In at least one embodiment of the present application, the first panel surface is divided into an upper panel surface partition, a middle panel surface partition and a lower panel surface partition, and two ends of the middle panel surface partition are respectively connected to the first corner box and the second corner box.

[0012] In at least one embodiment of the present application,

[0013] The transverse ribs include first transverse ribs, second transverse ribs, third transverse ribs, fourth transverse ribs, fifth transverse ribs, sixth transverse ribs, and seventh transverse ribs;

[0014] The vertical ribs include first vertical ribs, second vertical ribs, third vertical ribs, fourth vertical ribs, fifth vertical ribs, sixth vertical ribs, seventh vertical ribs, eighth vertical ribs, ninth vertical ribs, tenth vertical ribs, eleventh vertical ribs, and twelfth vertical ribs;

[0015] The first transverse rib, the third transverse rib, the first vertical rib, and the second vertical rib together form the upper plate surface partition, and the second transverse rib is arranged on the upper plate surface partition;

[0016] The middle plate surface partition is surrounded by the third transverse rib, the fifth transverse rib, the sixth transverse rib, the third vertical rib, and the ninth vertical rib, and the fourth transverse rib, the fourth vertical rib, the fifth vertical rib, the sixth vertical rib, the seventh vertical rib, and the eighth vertical rib are arranged on the middle plate surface partition;

[0017] The fifth horizontal rib, the seventh horizontal rib, the tenth vertical rib, and the twelfth vertical rib together form the lower plate surface partition, and the eleventh vertical rib is arranged on the lower plate surface partition.

[0018] In at least one embodiment of the present application, the third vertical rib and the ninth vertical rib have different lengths, and the fifth horizontal rib and the sixth horizontal rib are located at different heights.

[0019] In at least one embodiment of the present application, a plurality of main mounting plate weight reduction holes are provided on the main mounting plate, and hole flanges are provided on the main mounting plate weight reduction holes.

[0020] In at least one embodiment of the present application, mounting holes are respectively provided on the main mounting plate located at the upper panel partition and the middle panel partition, the main mounting plate is connected to the airborne equipment by bolts, and two rectangular main mounting plate weight reduction holes are provided on the main mounting plate located at the lower panel partition.

[0021] In at least one embodiment of the present application, an opening avoiding the machine body structure is provided at the bottom end of the main mounting plate located in the lower panel partition.

[0022] In at least one embodiment of the present application, the corner box is a triangle having a first side, a second side and a third side, the first side being connected to the main mounting plate, the second side being connected to the body structure, and the third side being connected to the crossbeam.

[0023] In at least one embodiment of the present application, corner box flanges are provided on the first side edge and the third side edge of the corner box.

[0024] In at least one embodiment of the present application,

[0025] A first reinforcing rib and a second reinforcing rib are provided on the first side of the corner box;

[0026] A third reinforcing rib, a fourth reinforcing rib and a fifth reinforcing rib are arranged on the third side of the corner box.

[0027] In at least one embodiment of the present application,

[0028] A slot is formed between the fourth reinforcing rib and the fifth reinforcing rib;

[0029] The slot on the first corner box is adapted to the height of the fifth transverse rib and is used for plugging the fifth transverse rib;

[0030] The slot on the second corner box is matched with the height of the sixth transverse rib and is used for plugging the sixth transverse rib.

[0031] In at least one embodiment of the present application, a corner box weight-reducing hole is provided on the corner box, and a hole flange is provided on the corner box weight-reducing hole.

[0032] In at least one embodiment of the present application, the crossbeam is a U-shaped angle bar.

[0033] In at least one embodiment of the present application, the installation requirements of different onboard equipment are adapted by changing the sizes of the main mounting plate, the corner box and / or the cross beam.

[0034] In at least one embodiment of the present application, the ability of the structure to support asymmetric environmental loads is enhanced by changing the number and size of transverse and vertical ribs on the first panel, the size of the corner box, the number and size of reinforcing ribs on the corner box, and adding hole flanging.

[0035] The invention has at least the following beneficial technical effects:

[0036] The asymmetric environmental load-resistant connection structure of the present application can solve the installation problem of heavy-weight suspended airborne equipment and avoid the problem of inharmonious deformation caused by asymmetric environmental loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is an angled schematic diagram of an asymmetric environmental load resistant connection structure according to an embodiment of the present application;

[0038] Figure 2 This is a schematic diagram of an asymmetric environmental load resistant connection structure according to an embodiment of the present application from another angle;

[0039] Figure 3 This is a schematic diagram of the arrangement of the transverse reinforcement of the main mounting plate according to one embodiment of the present application;

[0040] Figure 4 This is a schematic diagram of the vertical reinforcement arrangement of the main mounting plate of an embodiment of the present application;

[0041] Figure 5 It is a schematic diagram of a corner box according to one embodiment of the present application.

[0042] in:

[0043] 1-main mounting plate; 2-first corner box; 3-second corner box; 4-crossbeam; 5-first horizontal rib; 6-second horizontal rib; 7-third horizontal rib; 8-fourth horizontal rib; 9-fifth horizontal rib; 10-sixth horizontal rib; 11-seventh horizontal rib; 12-first vertical rib; 13-second vertical rib; 14-third vertical rib; 15-fourth vertical rib; 16-fifth vertical rib; 17-sixth vertical rib; 18-seventh vertical rib; 19-eighth vertical rib; 20-ninth vertical rib; 21-tenth vertical rib; 22-eleventh vertical rib; 23-twelfth vertical rib; 24-weight-reducing hole of main mounting plate; 25-corner box flange; 26-first reinforcing rib; 27-second reinforcing rib; 28-third reinforcing rib; 29-fourth reinforcing rib; 30-fifth reinforcing rib; 31-corner box weight-reducing hole. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of this application are described in detail below in conjunction with the drawings.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.

[0046] The following is combined with Figures 1 to 5 This application is described in further detail.

[0047] The present application provides a connection structure resistant to asymmetric environmental loads, comprising: a main mounting plate 1 , a corner box and a crossbeam 4 .

[0048] Specifically, Figure 1-Figure 2 As shown, in order to adapt to asymmetric environmental loads, the main mounting plate 1 is designed as an asymmetric structure. The main mounting plate 1 has a first plate surface and a second plate surface. The first plate surface is provided with a plurality of transverse ribs and vertical ribs, and the second plate surface is used to install airborne equipment; the corner box comprises a first corner box 2 and a second corner box 3. The first corner box 2 is installed at one end of the first plate surface and connected, and the second corner box 3 is installed at the other end of the first plate surface and connected. The main mounting plate 1 is connected to the body structure through the first corner box 2 and the second corner box 3; one end of the crossbeam 4 is connected to the first corner box 2, and the other end is connected to the second corner box 3, so as to connect the two corner boxes together.

[0049] The asymmetric environmental load resistant connection structure of the present application is preferably connected in a detachable manner between the various components, and a mounting hole is opened on each component. The main mounting plate 1 is connected to the airborne equipment by bolts, the corner box is connected to the main mounting plate 1 and the body structure by bolts, and the crossbeam 4 is connected to the corner box by bolts.

[0050] In a preferred embodiment of the present application, Figure 3-Figure 4As shown, the first board surface of the main mounting plate 1 is divided into an upper board surface partition, a middle board surface partition and a lower board surface partition, and the two ends of the middle board surface partition are respectively connected to the first corner box 2 and the second corner box 3. The horizontal ribs include the first horizontal rib 5, the second horizontal rib 6, the third horizontal rib 7, the fourth horizontal rib 8, the fifth horizontal rib 9, the sixth horizontal rib 10, and the seventh horizontal rib 11; the vertical ribs include the first vertical rib 12, the second vertical rib 13, the third vertical rib 14, the fourth vertical rib 15, the fifth vertical rib 16, the sixth vertical rib 17, the seventh vertical rib 18, the eighth vertical rib 19, the ninth vertical rib 20, the tenth vertical rib 21, the eleventh vertical rib 22, and the twelfth vertical rib 23; wherein, the first horizontal rib 5, the third horizontal rib 7, the first vertical rib 12, and the second vertical rib 13 together form an upper board surface partition, and the second horizontal rib 6 is arranged on the upper board surface partition, so that the upper board The surface partition is divided into two parts, the upper and lower parts; the third horizontal rib 7, the fifth horizontal rib 9, the sixth horizontal rib 10, the third vertical rib 14, and the ninth vertical rib 20 are used to enclose the middle plate surface partition, and the fourth horizontal rib 8, the fourth vertical rib 15, the fifth vertical rib 16, the sixth vertical rib 17, the seventh vertical rib 18, and the eighth vertical rib 19 are arranged on the middle plate surface partition to divide the middle plate surface partition into multiple parts of different sizes; the fifth horizontal rib 9, the seventh horizontal rib 11, the tenth vertical rib 21, and the twelfth vertical rib 23 are used to enclose the lower plate surface partition, and the eleventh vertical rib 22 is arranged on the lower plate surface partition to divide the lower plate surface partition into two parts. In this embodiment, according to the actual environmental load conditions, the lengths of the third vertical rib 14 and the ninth vertical rib 20 are designed to be different, and the fifth horizontal rib 9 and the sixth horizontal rib 10 are located at different heights. In addition, a plurality of main mounting plate weight reduction holes 24 are provided on the main mounting plate 1, and preferably, hole flanges are provided on the main mounting plate weight reduction holes 24. Each main mounting plate weight reduction hole 24 can adopt different structural forms, such as elongated holes and rectangular holes.

[0051] In one embodiment of the present application, mounting holes are respectively provided at the positions of the main mounting plate 1 located at the upper plate surface partition and the middle plate surface partition, and the main mounting plate 1 is connected to the airborne equipment by bolts, and two rectangular main mounting plate weight reduction holes 24 are provided at the position of the main mounting plate 1 located at the lower plate surface partition. The mounting point is set at the upper part, and the lower part does not need to be installed. The weight of the overall structure is reduced by these two weight reduction holes, and the rigidity is ensured by adding a hole flange to the rectangular main mounting plate weight reduction hole 24. In this embodiment, it is preferred that an opening is provided at the bottom end of the main mounting plate 1 located at the lower plate surface partition to avoid the body structure.

[0052] In a preferred embodiment of the present application, Figure 5As shown, the corner box is triangular, having a first side, a second side and a third side, the first side is connected to the main mounting plate 1, the second side is connected to the machine body structure, and the third side is connected to the cross beam 4. The first side and the third side of the corner box are provided with a corner box flange 25. In this embodiment, the first side of the corner box is provided with a first reinforcing rib 26 and a second reinforcing rib 27; the third side of the corner box is provided with a third reinforcing rib 28, a fourth reinforcing rib 29, and a fifth reinforcing rib 30. Advantageously, a slot is formed between the fourth reinforcing rib 29 and the fifth reinforcing rib 30; the slot on the first corner box 2 is adapted to the height of the fifth cross rib 9, for plugging the fifth cross rib 9; the slot on the second corner box 3 is adapted to the height of the sixth cross rib 10, for plugging the sixth cross rib 10. In addition, in this embodiment, a corner box weight reduction hole 31 is provided on the corner box, and a hole flange is provided on the corner box weight reduction hole 31, and the weight reduction hole is triangular.

[0053] In the preferred implementation of the present application, the structure and installation method of the cross beam 4 are selected according to the actual structure installation form to ensure stability under a mechanical environment. In this embodiment, the cross beam 4 is preferably made of U-shaped angle material.

[0054] In the preferred embodiment of the present application, by changing the size of the main mounting plate 1, the corner box and / or the crossbeam 4, the installation requirements of different airborne equipment can be adapted. According to the different weights of the airborne equipment, the thickness of the main mounting plate 1 and the corner box, the arrangement of the ribs, the size of the mounting holes, etc. can be changed to effectively meet the design requirements. By changing the number and size of the horizontal and vertical ribs on the first plate surface, the size of the corner box, the number and size of the reinforcing ribs on the corner box, and adding the method of hole flanging, the ability of the structure to support asymmetric environmental loads is improved.

[0055] The asymmetric environmental load resistant connection structure of the present application realizes resistance to asymmetric loads through the main mounting plate 1 structure and the transverse and vertical ribs and corner boxes thereon, so that the airborne equipment can withstand asymmetric environmental loads. The transverse and vertical ribs of the main mounting plate 1 meet the torque caused by the asymmetric load; the flanges and reinforcing ribs on the corner box have a certain deformation space, and the corner box can support the airborne equipment to meet the design requirements under a mechanical environment. The flanges of the corner box ensure the rigidity, and the reinforcing ribs of the corner box ensure the stability and strength of the installation of the airborne equipment; the hole connection method enhances the deformation coordination ability of the corner box and the onboard structure. Therefore, the above structure can simultaneously meet the requirements of deformation coordination against overturning moment and resistance to mechanical environment, can realize the installation of heavy airborne equipment that can withstand asymmetric environmental loads, and meet the requirements of resistance to vibration environment while avoiding asymmetric load transfer.

[0056] The asymmetric environmental load resistant connection structure of the present application is used in scenarios where airborne equipment is installed on an aircraft and fixed support for asymmetric environmental loads needs to be considered. It can avoid the situation where the conventional installation structure is unable to match the connection structure under the overturning moment generated by the asymmetric environmental load and cannot meet the technical requirements of the mechanical environment, especially the assessment of the installation structure with self-powered vibration. By changing the optimized arrangement of the transverse and vertical ribs on the main mounting plate 1, the thickness of the corner box and the distribution and direction of the mounting holes, it can accurately and effectively adapt to the deformation requirements required by the asymmetric load, so that the connection structure meets the required installation requirements, and the manufacturing process is simple and easy to install.

[0057] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A connection structure resistant to asymmetric environmental loads, characterized in that: include: The main mounting plate (1) is an asymmetric structure, the main mounting plate (1) comprising a first plate surface and a second plate surface, the first plate surface being provided with a plurality of transverse ribs and vertical ribs, the second plate surface being used for mounting airborne equipment; A corner box, the corner box comprising a first corner box (2) and a second corner box (3), the first corner box (2) being mounted on one end of the first panel surface and connected thereto, the second corner box (3) being mounted on the other end of the first panel surface and connected thereto, the main mounting plate (1) being connected to the machine body structure via the first corner box (2) and the second corner box (3); A crossbeam (4), one end of the crossbeam (4) being connected to the first corner box (2), and the other end of the crossbeam (4) being connected to the second corner box (3).

2. The asymmetric environmental load resistant connection structure according to claim 1, characterized in that: The main mounting plate (1) is connected to the onboard equipment via bolts, the corner box is connected to the main mounting plate (1) and the body structure via bolts, and the crossbeam (4) is connected to the corner box via bolts.

3. The asymmetric environmental load resistant connection structure according to claim 1, characterized in that: The first panel surface is divided into an upper panel surface partition, a middle panel surface partition and a lower panel surface partition, and two ends of the middle panel surface partition are respectively connected to the first corner box (2) and the second corner box (3).

4. The asymmetric environmental load resistant connection structure according to claim 3, characterized in that: The transverse bars include a first transverse bar (5), a second transverse bar (6), a third transverse bar (7), a fourth transverse bar (8), a fifth transverse bar (9), a sixth transverse bar (10), and a seventh transverse bar (11); The vertical ribs include a first vertical rib (12), a second vertical rib (13), a third vertical rib (14), a fourth vertical rib (15), a fifth vertical rib (16), a sixth vertical rib (17), a seventh vertical rib (18), an eighth vertical rib (19), a ninth vertical rib (20), a tenth vertical rib (21), an eleventh vertical rib (22), and a twelfth vertical rib (23); The first transverse rib (5), the third transverse rib (7), the first vertical rib (12), and the second vertical rib (13) together form the upper plate surface partition, and the second transverse rib (6) is arranged on the upper plate surface partition; The third transverse rib (7), the fifth transverse rib (9), the sixth transverse rib (10), the third vertical rib (14), and the ninth vertical rib (20) together enclose the middle plate surface partition; the fourth transverse rib (8), the fourth vertical rib (15), the fifth vertical rib (16), the sixth vertical rib (17), the seventh vertical rib (18), and the eighth vertical rib (19) are arranged on the middle plate surface partition; The fifth transverse rib (9), the seventh transverse rib (11), the tenth vertical rib (21), and the twelfth vertical rib (23) together enclose the lower plate surface partition, and the eleventh vertical rib (22) is arranged on the lower plate surface partition.

5. The asymmetric environmental load resistant connection structure according to claim 4, characterized in that: The third vertical rib (14) and the ninth vertical rib (20) have different lengths, and the fifth transverse rib (9) and the sixth transverse rib (10) are located at different heights.

6. The asymmetric environmental load resistant connection structure according to claim 5, characterized in that: The main installation plate (1) is provided with a plurality of main installation plate weight reduction holes (24), and the main installation plate weight reduction holes (24) are provided with hole flanges.

7. The asymmetric environmental load resistant connection structure according to claim 6, characterized in that: Mounting holes are respectively provided on the main mounting plate (1) at positions located in the upper plate surface partition and the middle plate surface partition, and the main mounting plate (1) is connected to the airborne equipment by bolts. Two rectangular main mounting plate weight reduction holes (24) are provided on the main mounting plate (1) at positions located in the lower plate surface partition.

8. The asymmetric environmental load resistant connection structure according to claim 7, characterized in that: An opening is provided at the bottom end of the main installation plate (1) located in the lower plate surface partition, avoiding the machine body structure.

9. The asymmetric environmental load resistant connection structure according to claim 8, characterized in that: The corner box is triangular in shape and has a first side, a second side and a third side, the first side being connected to the main mounting plate (1), the second side being connected to the machine body structure, and the third side being connected to the crossbeam (4).

10. The asymmetric environmental load resistant connection structure according to claim 9, characterized in that: Corner box flanges (25) are provided on the first side edge and the third side edge of the corner box.

11. The asymmetric environmental load resistant connection structure according to claim 10, characterized in that: A first reinforcing rib (26) and a second reinforcing rib (27) are provided on the first side of the corner box; A third reinforcing rib (28), a fourth reinforcing rib (29), and a fifth reinforcing rib (30) are arranged on the third side of the corner box.

12. The asymmetric environmental load resistant connection structure according to claim 11, characterized in that: A slot is formed between the fourth reinforcing rib (29) and the fifth reinforcing rib (30); The slot on the first corner box (2) is adapted to the height of the fifth transverse rib (9) and is used for plugging the fifth transverse rib (9); The slot on the second corner box (3) is matched with the height of the sixth transverse rib (10) and is used for inserting the sixth transverse rib (10).

13. The asymmetric environmental load resistant connection structure according to claim 12, characterized in that: A corner box weight-reducing hole (31) is provided on the corner box, and a hole flange is provided on the corner box weight-reducing hole (31).

14. The asymmetric environmental load resistant connection structure according to claim 13, characterized in that: The crossbeam (4) is a U-shaped angle bar.

15. The asymmetric environmental load resistant connection structure according to claim 14, characterized in that: By changing the dimensions of the main mounting plate (1), the corner box and / or the crossbeam (4), the installation requirements of different airborne equipment can be met.

16. The asymmetric environmental load resistant connection structure according to claim 15, characterized in that: By changing the number and size of the transverse and vertical ribs on the first panel, the size of the corner box, the number and size of the reinforcing ribs on the corner box, and adding hole flanging, the ability of the structure to support asymmetric environmental loads is improved.

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