CN215950047U - Connecting piece for transmitting out-of-plane concentrated load - Google Patents
Connecting piece for transmitting out-of-plane concentrated load Download PDFInfo
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- CN215950047U CN215950047U CN202122161127.XU CN202122161127U CN215950047U CN 215950047 U CN215950047 U CN 215950047U CN 202122161127 U CN202122161127 U CN 202122161127U CN 215950047 U CN215950047 U CN 215950047U
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Abstract
The application belongs to the technical field of structural strength analysis, and particularly relates to a connecting piece for transmitting an external concentrated load. The connector includes: the upper connecting angle box comprises a first connecting plate, a second connecting plate and a first reinforcing plate, wherein the first connecting plate is provided with a mounting hole, the second connecting plate is connected with the first connecting plate and forms a first preset angle with the first connecting plate, and the first reinforcing plate is vertically arranged on the first connecting plate and the second connecting plate; the lower connecting angle box comprises a third connecting plate, a fourth connecting plate and a second reinforcing plate, the third connecting plate is perpendicularly installed on the lower bottom surface of the second connecting plate, the fourth connecting plate is connected with the third connecting plate, the third connecting plate and the fourth connecting plate are at a second preset angle, a mounting hole is formed in the fourth connecting plate, and the second reinforcing plate is perpendicularly installed on the third connecting plate and the fourth connecting plate.
Description
Technical Field
The application belongs to the technical field of structural strength analysis, and particularly relates to a connecting piece for transmitting an external concentrated load.
Background
The aircraft mainly adopts a thin-wall structure in the structural design to reduce the structural weight, and the thin-wall structure mainly bears the load in a plane. In an actual structure, concentrated loads of all parts are often in an out-of-plane load form, how to convert the out-of-plane concentrated loads into loads of a thin-wall structure in a limited design space, and a structural member for converting the out-of-plane concentrated loads into the loads of the thin-wall structure is urgently needed to be designed, so that the thin-wall support is prevented from being accidentally damaged due to unreasonable load transfer design, and the flight safety of an airplane is guaranteed.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
SUMMERY OF THE UTILITY MODEL
It is an object of the present application to provide a connection for transferring out-of-plane concentrated loads that solves at least one problem associated with the prior art.
The technical scheme of the application is as follows:
a connector for transferring out-of-plane concentrated loads, the connector comprising: an upper connecting angle box and a lower connecting angle box which are arranged in a ladder shape, wherein,
the upper connecting angle box comprises a first connecting plate, a second connecting plate and a first reinforcing plate, wherein a mounting hole is formed in the first connecting plate, the second connecting plate is connected with the first connecting plate and forms a first preset angle with the first connecting plate, and the first reinforcing plate is vertically arranged on the first connecting plate and the second connecting plate;
the lower connecting angle box comprises a third connecting plate, a fourth connecting plate and a second reinforcing plate, the third connecting plate is perpendicularly installed on the lower bottom surface of the second connecting plate, the fourth connecting plate is connected with the third connecting plate, the third connecting plate and the fourth connecting plate are at a second preset angle, a mounting hole is formed in the fourth connecting plate, and the second reinforcing plate is perpendicularly installed on the third connecting plate and the fourth connecting plate.
Optionally, the first predetermined angle is 90 degrees.
Optionally, the second predetermined angle is an obtuse angle.
Optionally, the mounting holes on the first connecting plate are symmetrically formed along the first reinforcing plate.
Optionally, the mounting holes on the fourth connecting plate are symmetrically formed along the second reinforcing plate.
Optionally, the fourth connecting plate is trapezoidal.
Optionally, the first connecting plate, the second connecting plate, the first reinforcing plate, the third connecting plate, the fourth connecting plate, and the second reinforcing plate are integrally formed.
Utility model has the following beneficial technical effects:
the connecting piece for transmitting the out-of-plane concentrated load adopts the structural piece in the form of the stepped corner box to convert the out-of-plane concentrated load into the thin-wall structure load, is favorable for reducing the stress of the supporting thin-wall piece, reduces the number of the connecting pieces, lightens the structural weight of the supporting thin-wall piece, occupies less assembly space and reduces the assembly difficulty.
Drawings
FIG. 1 is a side view of a coupling member for transferring an out-of-plane concentrated load according to one embodiment of the present application;
fig. 2 is a T-shaped ear concentrated carrying structure in the prior art.
Wherein:
11-a first connection plate; 12-a second connecting plate; 13-a first stiffening plate; 21-a third connecting plate; 22-a fourth connecting plate; 23-second reinforcing plate.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1-2.
The application provides a connecting piece of transmission off-plane concentrated load, this connecting piece includes: the last connection angle box and the lower connection angle box of notch cuttype arrangement.
Specifically, the upper connecting angle box comprises a first connecting plate 11, a second connecting plate 12 and a first reinforcing plate 13, wherein a plurality of mounting holes are formed in the first connecting plate 11, the second connecting plate 12 is connected with the first connecting plate 11, a first preset angle is formed between the second connecting plate 12 and the first connecting plate 11, and the first reinforcing plate 13 is vertically arranged on the first connecting plate 11 and the second connecting plate 12. The lower connecting angle box comprises a third connecting plate 21, a fourth connecting plate 22 and a second reinforcing plate 23, the third connecting plate 21 is vertically installed on the lower bottom surface of the second connecting plate 12, the fourth connecting plate 22 is connected with the third connecting plate 21, a second preset angle is formed between the fourth connecting plate 22 and the third connecting plate 21, a plurality of installing holes are formed in the fourth connecting plate 22, and the second reinforcing plate 23 is vertically installed on the third connecting plate 21 and the fourth connecting plate 22.
In a preferred embodiment of the present application, the first predetermined angle between the second connection plate 12 and the first connection plate 11 is 90 degrees, and the second predetermined angle between the fourth connection plate 22 and the third connection plate 21 is an obtuse angle, for example 150 degrees.
In the preferred embodiment of the present application, the first reinforcing plate 13 is vertically installed at the position of the symmetry axis of the first connecting plate 11 and the second connecting plate 12, and a plurality of installation holes are symmetrically formed on the first connecting plate 11 along the first reinforcing plate 13 for connection with other structures through bolts.
In the preferred embodiment of the present application, the second reinforcing plate 23 is vertically installed at the symmetrical axis position of the third connecting plate 21 and the fourth connecting plate 22, and a plurality of installation holes on the fourth connecting plate 22 are symmetrically opened along the second reinforcing plate 23 for realizing connection with other structures through bolts.
Advantageously, in the present embodiment, the fourth connecting plate 22 has a trapezoid shape, and the first connecting plate 11, the second connecting plate 12, the first reinforcing plate 13, the third connecting plate 21, the fourth connecting plate 22 and the second reinforcing plate 23 are integrally formed.
In one embodiment of the application, the large concentrated load F of a certain airplane is transmitted through the connecting piece for transmitting the out-of-plane concentrated load, and the concentrated load F can be converted into the in-plane and out-of-plane loads of the thin-wall structure in a certain design space.
Specifically, in a limited design space, as shown in fig. 1, the concentrated load F applied at the point O can be decomposed into a vertical load FVAnd horizontal load FhVertical load FVThe concentrated load is transmitted as an in-plane load by the bolts a and B of the first connecting plate 11 (A, B two-point bolt load is F)VA、FVB) Horizontal load FhThe concentrated load is transmitted in an out-of-plane extrusion mode (A, B the pressure load of the two-point bolt is F)hA、FhB) Vertical load FVMoment M of center point P of action on boltV＝FVL and FhMoment M of center point P of action on bolth＝FhH is from FMA、FMBA couple is formed and balanced, wherein L is the horizontal distance from the point P to the point O, and H is the vertical distance from the point P to the point O.
The connecting piece structure in the embodiment is subjected to accurate stress solving, and compared with a T-shaped lug concentrated load transmission structure form in the prior art, as shown in fig. 2, the stress level of the connecting piece structure is 2315.6MPa under the same weight and the same external load, the connecting piece for the stepped type transmitting surface concentrated load can effectively reduce the weight by 19.8 percent, the number of the connecting pieces is obviously reduced, and the stepped type corner box is in a thin-wall form, so that the assembly space is saved.
The connecting piece for transmitting the out-of-plane concentrated loads adopts a step-type corner box configuration design form, the out-of-plane concentrated loads are converted into thin-wall structure loads, the stress strain value of the thin-wall structure is reduced, the tensile force of the bolt connecting piece is effectively reduced due to the loading in the thin-wall structure surface, the bolt loading is facilitated, meanwhile, the number of the connecting pieces is reduced due to the step-type corner box design form, and the weight of the supporting thin-wall piece is reduced. The assembling form is simple, the process is convenient to implement, and the device has good interchangeability.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. A connector for transferring out-of-plane concentrated loads, the connector comprising: an upper connecting angle box and a lower connecting angle box which are arranged in a ladder shape, wherein,
the upper connecting angle box comprises a first connecting plate (11), a second connecting plate (12) and a first reinforcing plate (13), a mounting hole is formed in the first connecting plate (11), the second connecting plate (12) is connected with the first connecting plate (11) and forms a first preset angle with the first connecting plate (11), and the first reinforcing plate (13) is vertically arranged on the first connecting plate (11) and the second connecting plate (12);
connect the angle box down and include third connecting plate (21), fourth connecting plate (22) and second reinforcing plate (23), third connecting plate (21) are installed perpendicularly the lower bottom surface of second connecting plate (12), fourth connecting plate (22) with third connecting plate (21) are connected, and both are the predetermined angle of second, the mounting hole has been seted up on fourth connecting plate (22), second reinforcing plate (23) are installed perpendicularly third connecting plate (21) and on fourth connecting plate (22).
2. An out-of-plane concentrated load transfer connection as recited in claim 1, wherein the first predetermined angle is 90 degrees.
3. An out-of-plane concentrated load transfer connection as recited in claim 1, wherein the second predetermined angle is an obtuse angle.
4. The connecting member for transmitting an out-of-plane concentrated load according to claim 1, wherein the mounting holes of the first connecting plate (11) are symmetrically opened along the first reinforcing plate (13).
5. A connection element for transmitting concentrated loads outside of a plane according to claim 1, characterized in that the mounting holes of said fourth connection plate (22) are symmetrically opened along said second reinforcement plate (23).
6. The connection for transferring out-of-plane concentrated loads according to claim 1, characterized in that said fourth web (22) is trapezoidal in shape.
7. The out-of-plane concentrated load transfer connection of claim 1, wherein the first connection plate (11), the second connection plate (12), the first reinforcement plate (13), the third connection plate (21), the fourth connection plate (22), and the second reinforcement plate (23) are of unitary construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122161127.XU CN215950047U (en) | 2021-09-08 | 2021-09-08 | Connecting piece for transmitting out-of-plane concentrated load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122161127.XU CN215950047U (en) | 2021-09-08 | 2021-09-08 | Connecting piece for transmitting out-of-plane concentrated load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215950047U true CN215950047U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122161127.XU Active CN215950047U (en) | 2021-09-08 | 2021-09-08 | Connecting piece for transmitting out-of-plane concentrated load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215950047U (en) |
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2021
- 2021-09-08 CN CN202122161127.XU patent/CN215950047U/en active Active
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