Flight parameter recorder mounting structure

Abstract

The utility model belongs to the field of aircraft structure design, and particularly relates to a flight parameter recorder mounting structure. Comprising a first positioning plate and a second positioning plate which are arranged on a connecting rod in parallel, the connecting rod is divided into three sections by the first positioning plate and the second positioning plate, and the three sections are a first connecting section, a second connecting section and a middle connecting section located between the first connecting section and the second connecting section respectively, the first connecting section is fixedly connected with the flight parameter recorder; the second connecting section is fixedly connected with the machine body structure; the middle connecting section is provided with a fracture section; the middle connecting section is sleeved with the spring, one end of the spring is fixedly connected with the first positioning plate, and the other end of the spring is fixedly connected with the second positioning plate. According to the flight parameter recorder mounting structure, the action time of force is prolonged, the strong impact force is reduced, and the problem that internal data cannot be read out due to the fact that the local part of the flight parameter recorder shell bears too large impact damage is solved.

Description

Technical Field

[0001] The present application belongs to the field of aircraft structure design, and in particular relates to a flight parameter recorder installation structure. Background Art

[0002] The main function of the flight data recorder is to provide objective evidence for flight accident investigation, find out the real cause of the accident, and prevent similar problems from happening again. As an airborne objective information recording device, the data provided by the flight data recorder can be used for accident investigation and analysis, aircraft maintenance, and improving equipment quality, which is of great significance to improving aircraft safety performance.

[0003] Because the environment that the flight parameter recorder is subjected to is extremely harsh when the plane crashes, the flight parameter recorder, which is an important criterion for accident handling, does not survive 100% reliably, resulting in the inability to read the flight record data, which creates great difficulties in scientifically determining the conclusion of the flight accident. In most cases, the reason why the data stored in the flight parameter recorder cannot be read is that the strong impact force when the plane crashes causes the protective structure on the outside of the storage module to be damaged, and the storage module is irreparably damaged. To improve the anti-crash performance of the protective flight parameter recorder, from the perspective of the protection of the recorder itself, it is necessary to use more advanced impact-resistant materials for the mechanical damage resistance structure of the protective flight parameter recorder and improve the impact-resistant design of the shell. From the perspective of external factors, it is necessary to reduce the impact force on the flight parameter recorder and prevent excessive local force.

[0004] The flight data recorder of previous aircraft models is installed in a similar way to other equipment, which is fixed to the body structure, and the firmness of the equipment installation connection is given priority. This firm connection method is equivalent to the flight data recorder being a rigid body with the aircraft when the aircraft crashes at high speed, and will be subject to strong impact.

[0005] 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. Utility Model Content

[0006] The purpose of this application is to provide a flight parameter recorder installation structure to solve at least one problem existing in the prior art.

[0007] The technical solution of this application is:

[0008] A flight parameter recorder installation structure, comprising:

[0009] A connecting rod, wherein a first positioning plate and a second positioning plate are arranged in parallel on the connecting rod, wherein the first positioning plate and the second positioning plate divide the connecting rod into three sections, namely a first connecting section, a second connecting section and an intermediate connecting section located between the first connecting section and the second connecting section, wherein the first connecting section is fixedly connected to a flight parameter recorder;

[0010] The second connecting section is fixedly connected to the body structure;

[0011] The middle connecting section is provided with a breaking section;

[0012] A spring is sleeved on the middle connecting section, and one end of the spring is fixedly connected to the first positioning plate, and the other end of the spring is fixedly connected to the second positioning plate.

[0013] In at least one embodiment of the present application, the flight parameter recorder includes a storage module and a flight parameter recorder shell arranged on the outside of the storage module, and the flight parameter recorder shell includes an anti-corrosion material layer, a thermal protection structure layer, and an anti-mechanical damage structure layer arranged in sequence from the inside to the outside.

[0014] In at least one embodiment of the present application, a mounting seat is provided on the anti-mechanical damage structural layer of the flight parameter recorder, and a mounting hole is provided on the mounting seat;

[0015] The first connecting section is provided with an external thread, and the first connecting section cooperates with a nut to be fixedly connected to the mounting seat.

[0016] In at least one embodiment of the present application, a base is provided on the body structure, and a support plate nut is installed on the base;

[0017] The second connecting section is provided with an external thread, and the second connecting section is fixedly connected to the support plate nut.

[0018] In at least one embodiment of the present application, the size of the breaking section of the intermediate connecting section satisfies that: when the overload borne is greater than or equal to a threshold value, the breaking section breaks.

[0019] In at least one embodiment of the present application, the threshold value is 30g, where g is the acceleration due to gravity.

[0020] The utility model has at least the following beneficial technical effects:

[0021] The flight parameter recorder installation structure of the present application prolongs the action time of force, reduces strong impact force, and avoids the problem that the flight parameter recorder shell is partially subjected to excessive impact damage, resulting in the inability to read internal data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the installation structure of a flight parameter recorder according to an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of a connecting rod of an embodiment of the present application;

[0024] Figure 3This is a schematic diagram of a flight parameter recorder according to one embodiment of the present application.

[0025] in:

[0026] 1-connecting rod; 2-first positioning plate; 3-second positioning plate; 4-spring. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] The following is combined with Figures 1 to 3 This application is described in further detail.

[0030] The present application provides a flight parameter recorder installation structure, including a connecting rod 1 and a spring 4.

[0031] Specifically, Figure 1-Figure 2 As shown, the first positioning plate 2 and the second positioning plate 3 are arranged in parallel on the connecting rod 1, and the first positioning plate 2 and the second positioning plate 3 divide the connecting rod 1 into three sections, namely the first connecting section, the second connecting section and the middle connecting section between the first connecting section and the second connecting section, wherein the first connecting section is fixedly connected to the flight parameter recorder; the second connecting section is fixedly connected to the body structure; and the middle connecting section is provided with a breaking section. The spring 4 is sleeved on the middle connecting section, and one end of the spring 4 is fixedly connected to the first positioning plate 2, and the other end is fixedly connected to the second positioning plate 3.

[0032] In a preferred embodiment of the present application, Figure 3As shown, the flight parameter recorder includes four parts, namely a storage module and an anti-corrosion material layer, a thermal protection structural layer, and an anti-mechanical damage structural layer which are sequentially arranged on the outside of the storage module. The anti-corrosion material layer, the thermal protection structural layer, and the anti-mechanical damage structural layer together form the flight parameter recorder shell to protect the storage module.

[0033] In a preferred embodiment of the present application, a mounting seat is provided on the anti-mechanical damage structural layer of the flight parameter recorder. The structural form of the mounting seat can be appropriately selected according to actual conditions. A mounting hole is provided on the mounting seat, and the first connecting section is provided with an external thread. The first connecting section passes through the mounting hole on the mounting seat and is fixedly connected to the mounting seat with a nut, thereby realizing the connection between the connecting rod 1 and the flight parameter recorder.

[0034] In a preferred embodiment of the present application, a base is provided on the body structure, and the structural form of the base can be appropriately selected according to actual conditions. A support plate nut is fixedly installed on the base, and the second connecting section is provided with an external thread. The second connecting section is fixedly connected to the support plate nut, thereby realizing the connection between the connecting rod 1 and the body structure.

[0035] The flight parameter recorder installation structure of the present application, when the connecting rod 1 is installed with the flight parameter recorder and the body structure, the first positioning plate 2 and the second positioning plate 3 can realize the positioning of the installation height, and the first positioning plate 2 can be used as a preload force detection position, and the second positioning plate 3 can be used as the action position of the wrench during installation.

[0036] In a preferred embodiment of the present application, the size of the breaking section of the middle connecting section of the connecting rod 1 can be designed according to actual needs, so that when the overload is greater than or equal to the threshold, the breaking section breaks. Advantageously, in this embodiment, the threshold is designed to be 30g, where g is the acceleration of gravity.

[0037] The flight parameter recorder mounting structure of the present application connects the flight parameter recorder with the body structure through the flight parameter recorder mounting structure. When the flight parameter recorder mounting structure is subjected to an overload greater than or equal to 30g, the breaking section of the flight parameter recorder mounting structure breaks, and the flight parameter recorder and the body structure are separated from the fixed connection mode and switched to an elastic connection mode connected by spring 4, thereby extending the time of force action.

[0038] When an airplane crashes at high speed, the force borne locally on the flight parameter recorder housing can be described by the following formula:

[0039] ;

[0040] Where, F is the force locally borne by the flight parameter recorder housing, m is the mass of the flight parameter recorder, is the acceleration of the flight parameter recorder.

[0041] Under the premise that the aircraft crash speed is uncontrollable, prolonging the time of force action is equivalent to reducing the magnitude of the impact force, that is, reducing the magnitude of the acceleration that the flight parameter recorder is subjected to.

[0042] The flight parameter recorder installation structure of the present application adopts a weak connection method to connect the flight parameter recorder to the body structure, which prolongs the action time of the force, reduces the strong impact force, and avoids the problem that the flight parameter recorder shell is partially subjected to excessive impact damage, resulting in the inability to read the internal data.

[0043] 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 flight parameter recorder installation structure, characterized in that: include: A connecting rod (1), wherein a first positioning plate (2) and a second positioning plate (3) are arranged in parallel on the connecting rod (1), wherein the first positioning plate (2) and the second positioning plate (3) divide the connecting rod (1) into three sections, namely a first connecting section, a second connecting section and an intermediate connecting section located between the first connecting section and the second connecting section, wherein: The first connecting section is fixedly connected to the flight parameter recorder; The second connecting section is fixedly connected to the body structure; The middle connecting section is provided with a breaking section; A spring (4), wherein the spring (4) is sleeved on the middle connecting section, and one end of the spring (4) is fixedly connected to the first positioning plate (2), and the other end of the spring (4) is fixedly connected to the second positioning plate (3).

2. The flight parameter recorder installation structure according to claim 1, characterized in that: The flight parameter recorder includes a storage module and a flight parameter recorder shell arranged on the outside of the storage module, and the flight parameter recorder shell includes an anti-corrosion material layer, a thermal protection structure layer, and an anti-mechanical damage structure layer arranged in sequence from the inside to the outside.

3. The flight parameter recorder installation structure according to claim 2, characterized in that: A mounting seat is provided on the anti-mechanical damage structural layer of the flight parameter recorder, and a mounting hole is provided on the mounting seat; The first connecting section is provided with an external thread, and the first connecting section cooperates with a nut to be fixedly connected to the mounting seat.

4. The flight parameter recorder installation structure according to claim 1, characterized in that: The body structure is provided with a base, and a support plate nut is installed on the base; The second connecting section is provided with an external thread, and the second connecting section is fixedly connected to the support plate nut.

5. The flight parameter recorder installation structure according to claim 1, characterized in that: The size of the breaking section of the intermediate connecting section satisfies that when the overload borne is greater than or equal to a threshold value, the breaking section breaks.

6. The flight parameter recorder installation structure according to claim 5, characterized in that: The threshold value is 30g, where g is the acceleration due to gravity.

Images