Column type function test bed for airplane cabin door

Abstract

The utility model belongs to the technical field of airplane cabin door tests, and particularly relates to an airplane cabin door stand column type function test bed which comprises an installation frame and a door frame assembly. The installation frame comprises a base assembly, two supporting frames fixed to the base assembly and a connector assembly. The door frame assembly is fixedly installed on the installation frame through the connector assembly. The door frame assembly comprises an arc-shaped front end frame fake piece and an arc-shaped rear end frame fake piece which are arranged in parallel. The doorsill false piece, the lintel false piece and the stiffening beam assembly are connected between the front end frame false piece and the rear end frame false piece; a skin dummy; wherein the doorsill false part is located at the bottom, the lintel false part is located at the top, and the stiffening beam assembly is located at the topmost end; the skin false part is fixedly connected to the outer surfaces of the front end frame false part, the lintel false part, the rear end frame false part and the threshold false part, the door frame false part, the lintel false part and the threshold false part which are machined in a large size are used for replacing a real door frame structure, the number of parts is greatly reduced, the manufacturing period is shortened, the implementation manufacturability is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of aircraft cabin door testing, and in particular relates to an aircraft cabin door column-type functional test bench. Background Art

[0002] Carry out door function tests on the aircraft to verify that the function, strength and stiffness of the aircraft door's motion mechanism meet the design and use requirements. If problems are found during the test, the door design will be changed. The change of the door may lead to changes in the aircraft door frame structure, resulting in the redesign of the door frame tooling and jig. Remanufacturing the door and aircraft door frame structure will affect the development progress of the aircraft and require a huge cost.

[0003] The door function test is carried out on the sealed test cabin to verify that the function, strength and rigidity of the aircraft door's motion mechanism meet the design and use requirements. The sealed test cabin door frame structure and door area wall panels use the real aircraft structure, which has a long manufacturing cycle and high cost. If problems are found during the test, the door design will be changed, which may cause the sealed test cabin to be unusable and require redesign and manufacturing, which will cost a lot. Utility Model Content

[0004] In order to solve the above problems, the present application provides an aircraft door column type functional test bench, comprising:

[0005] Install frame and door frame components;

[0006] The installation frame includes: a base assembly, two support frames respectively fixed on the base assembly, and a joint assembly; the door frame assembly is fixedly mounted on the installation frame through the joint assembly;

[0007] The door frame assembly includes: a front end frame dummy and a rear end frame dummy arranged in parallel in an arc shape; a threshold dummy, a lintel dummy and a reinforcing beam assembly connecting the front end frame dummy and the rear end frame dummy; a skin dummy; wherein the threshold dummy is located at the bottom, the lintel dummy is located at the top, and the reinforcing beam assembly is located at the topmost; the skin dummy is fixedly connected to the outer surfaces of the front end frame dummy, the lintel dummy, the rear end frame dummy and the threshold dummy.

[0008] Preferably, each of the support frames comprises a front column, a middle column and a rear column with increasing heights, the middle column and the rear column are connected by a cross beam, and a reinforcing column and a reinforcing cross beam are connected behind the rear column for reinforcement.

[0009] Preferably, the joint assembly includes a front butt joint assembly, a middle butt joint assembly and a rear butt joint assembly, which are respectively connected to the top ends of the front column, the middle column and the rear column.

[0010] Preferably, the joint assembly includes an angle piece and reinforcing ribs connected to the inner sides of two vertical end faces of the angle piece, and the two vertical end faces of the angle piece are provided with mounting holes.

[0011] Preferably, the support frames are welded to the base assembly.

[0012] Preferably, the joint assembly is connected to the mounting frame and the door frame assembly by bolts.

[0013] Preferably, the cross beam is welded between the center pillar and the rear pillar, and the reinforcing cross beam is welded between the rear pillar and the reinforcing pillar.

[0014] Preferably, the dummy skin part has an opening in the middle of a frame structure surrounded by the dummy front frame part, the dummy door lintel part, the dummy rear frame part and the dummy door sill part.

[0015] The advantages of the present application include: designing an aircraft door column functional test bench, setting up machined door frame dummy parts, door lintel dummy parts, and threshold dummy parts to replace the real door frame structure, and the dummy parts are assembled and installed on a column support frame welded / bolted by steel sections and steel plates.

[0016] The dummy door frame, dummy door lintel and dummy door threshold have great rigidity, which can effectively avoid the influence of the deformation of the real door frame on the function of the hatch during the test.

[0017] Replacing the real door frame structure with large-sized machined door frame fakes, door lintel fakes, and door sill fakes greatly reduces the number of parts, shortens the manufacturing cycle, improves the processability of the implementation, and reduces the manufacturing cost.

[0018] When problems were discovered during the test, the hatch door was redesigned and the dummy door frames, door lintels and door sills were replaced, shortening the cycle of design changes, remanufacturing and installation.

[0019] The use of machined parts eliminates the need for special tooling and jigs, reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an installation diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the composition of the column support structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the composition of the door frame structure fake parts of the utility model.

[0023] Figure 4 It is a front view of the utility model.

[0024] Figure 5 It is a side view of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation 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 implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.

[0026] The present application provides an aircraft door column type functional test bench, such as Figure 1-Figure 5 ,include:

[0027] Install frame and door frame components;

[0028] The installation frame includes: a base assembly 1, two support frames respectively fixed on the base assembly 1, and a joint assembly; the door frame assembly is fixedly mounted on the installation frame through the joint assembly;

[0029] The door frame assembly includes: a front end frame dummy 12 and a rear end frame dummy 15 arranged in parallel in an arc shape; a threshold dummy 16, a door lintel dummy 14 and a reinforcing beam assembly 13 connecting the front end frame dummy 12 and the rear end frame dummy 15; a skin dummy 11; wherein the threshold dummy 16 is located at the bottom, the door lintel dummy 14 is located at the top, and the reinforcing beam assembly 13 is located at the topmost; the skin dummy 11 is fixedly connected to the outer surfaces of the front end frame dummy 12, the door lintel dummy 14, the rear end frame dummy 15 and the threshold dummy 16, and the skin dummy 11 has an opening in the middle of the frame structure surrounded by the front end frame dummy 12, the door lintel dummy 14, the rear end frame dummy 15 and the threshold dummy 16.

[0030] In some optional embodiments, each of the support frames includes a front column 2, a middle column 3 and a rear column 4 with increasing heights, the middle column 3 and the rear column 4 are connected by a cross beam 6, and a reinforcing column 5 and a reinforcing cross beam 7 are also connected behind the rear column 4 for reinforcement.

[0031] In some optional embodiments, the joint assembly includes a front butt joint assembly 8, a middle butt joint assembly 9 and a rear butt joint assembly 10, which are respectively connected to the top ends of the front column 2, the middle column 3 and the rear column 4.

[0032] In some optional embodiments, the joint assembly includes an angle piece and reinforcing ribs connected to the inner sides of two vertical end faces of the angle piece, and the two vertical end faces of the angle piece are provided with mounting holes.

[0033] The front column 2 is welded to the two sides of the front part of the base assembly 1; the middle column 3 is welded to the two sides of the middle part of the base assembly 1; the rear column 4 is welded to the two sides of the rear part of the base assembly 1; and the reinforcement column 5 is welded to the two sides of the rear end of the base assembly 1. Figure 2 .

[0034] The front end of the cross beam 6 is welded to the upper part of the middle column 3, and the rear end is welded to the rear column 4; the front end of the reinforcing cross beam 7 is welded to the rear column 4, and the rear end is welded to the upper end of the reinforcing column 5. Figure 2 .

[0035] The front butt joint assembly 8 is bolted to the upper surface of the front pillars 2 on both sides; the middle butt joint assembly 9 is bolted to the front end surface of the cross beam 6 on both sides; the rear butt joint assembly 10 is bolted to the upper surface of the rear pillars 4 on both sides. Figure 2 .

[0036] The reinforcing beam assembly 13 is bolted to the upper end of the front frame dummy 12 and the rear frame dummy 15; the lintel dummy 14 is bolted to the upper part of the front frame dummy 12 and the rear frame dummy 15; the threshold dummy 16 is bolted to the lower part of the front frame dummy 12 and the rear frame dummy 15; the skin dummy 11 is fixedly connected to the outer surface of the front frame dummy 12, the lintel dummy 14, the rear frame dummy 15, and the threshold dummy 16. Figure 3 .

[0037] After the skin dummy 11, the front end frame dummy 12, the reinforcing beam assembly 13, the lintel dummy 14, the rear end frame dummy 15, and the threshold dummy 16 are assembled, the front end frame dummy 12 is bolted to the front butt joint assembly 8, the middle butt joint assembly 9, and the rear butt joint assembly 10, respectively, and the rear end frame dummy 15 is bolted to the front butt joint assembly 8, the middle butt joint assembly 9, and the rear butt joint assembly 10, respectively. Figure 1 .

[0038] In some optional embodiments, the advantages of the present application include: designing an aircraft door pillar functional test bench, providing machined door frame dummy parts, door lintel dummy parts, and door sill dummy parts to replace the real door frame structure, and after the dummy parts are assembled, they are installed on a pillar support frame welded / bolted by steel sections and steel plates.

[0039] The dummy door frame, dummy door lintel and dummy door threshold have great rigidity, which can effectively avoid the influence of the deformation of the real door frame on the function of the hatch during the test.

[0040] Replacing the real door frame structure with large-sized machined door frame fakes, door lintel fakes, and door sill fakes greatly reduces the number of parts, shortens the manufacturing cycle, improves the processability of the implementation, and reduces the manufacturing cost.

[0041] When problems were discovered during the test, the hatch door was redesigned and the dummy door frames, door lintels and door sills were replaced, shortening the cycle of design changes, remanufacturing and installation.

[0042] The use of machined parts eliminates the need for special tooling and jigs, reducing manufacturing costs.

[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. An aircraft door column functional test bench, characterized in that: include: Install frame and door frame components; The installation frame comprises: a base assembly (1), two support frames respectively fixed on the base assembly (1), and a joint assembly; the door frame assembly is fixedly mounted on the installation frame via the joint assembly; The door frame assembly comprises: an arc-shaped front frame dummy (12) and a rear frame dummy (15) arranged in parallel; a threshold dummy (16), a door lintel dummy (14) and a reinforcing beam assembly (13) connected between the front frame dummy (12) and the rear frame dummy (15); and a skin dummy (11); wherein the threshold dummy (16) is located at the bottom, the door lintel dummy (14) is located at the top, and the reinforcing beam assembly (13) is located at the topmost; and the skin dummy (11) is fixedly connected to the outer surfaces of the front frame dummy (12), the door lintel dummy (14), the rear frame dummy (15) and the threshold dummy (16).

2. The aircraft door pillar type functional test bench according to claim 1, characterized in that: Each support frame comprises a front column (2), a middle column (3) and a rear column (4) whose heights increase successively; the middle column (3) and the rear column (4) are connected via a crossbeam (6); and a reinforcing column (5) and a reinforcing crossbeam (7) are also connected behind the rear column (4) for reinforcement.

3. The aircraft door pillar type functional test bench according to claim 1, characterized in that: The joint assembly comprises a front butt joint assembly (8), a middle butt joint assembly (9) and a rear butt joint assembly (10), which are respectively connected to the top ends of the front column (2), the middle column (3) and the rear column (4).

4. The aircraft door pillar type functional test bench according to claim 1, characterized in that: The joint assembly comprises an angle piece and reinforcing ribs connected to the inner sides of two vertical end faces of the angle piece, and the two vertical end faces of the angle piece are provided with mounting holes.

5. The aircraft door pillar type functional test bench according to claim 1, characterized in that: The support frames are all welded to the base assembly (1).

6. The aircraft door pillar type functional test bench according to claim 1, characterized in that: The joint assembly is connected to the mounting frame and the door frame assembly by bolts.

7. The aircraft door pillar type functional test bench according to claim 1, characterized in that: The cross beam (6) is welded between the middle column (3) and the rear column (4), and the reinforcement cross beam (7) is welded between the rear column (4) and the reinforcement column (5).

8. The aircraft door pillar type functional test bench according to claim 1, characterized in that: The skin dummy (11) has an opening in the middle of a frame structure surrounded by a front end frame dummy (12), a door lintel dummy (14), a rear end frame dummy (15) and a door sill dummy (16).

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