CN219455409U

CN219455409U - Aircraft structure oil tank sealing detection tool

Info

Publication number: CN219455409U
Application number: CN202320297923.2U
Authority: CN
Inventors: 周源; 杨鹏
Original assignee: State Run Wuhu Machinery Factory
Current assignee: State Run Wuhu Machinery Factory
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-08-01
Anticipated expiration: 2033-02-23

Abstract

The utility model relates to the technical field of seal detection tools, in particular to an aircraft structure oil tank seal detection tool which comprises a cylinder with a hollow cylindrical structure, wherein a round hole is formed in the top of the cylinder, the bottom of the cylinder is a detection end face matched with the shape of a detected interface, and a seal groove for realizing seal between the detection end face and the detected interface is formed in the detection end face. According to the tool for detecting the sealing of the oil tank of the aircraft structure, disclosed by the utility model, the internal or external leakage points of the oil tank can be rapidly determined, compared with a traditional airtight test, the detection time is shortened by 75%, the detection efficiency is improved, and the problem that the internal or external leakage points are difficult to determine after the oil leakage fault occurs in the external field of the aircraft is solved.

Description

Aircraft structure oil tank sealing detection tool

Technical Field

The utility model relates to the technical field of seal detection tools, in particular to an aircraft structure oil tank seal detection tool.

Background

Chinese patent CN200510136036.3 describes a leak detection device for an aircraft fuel tank, by installing a sealing cover plate and a leak detection box, the inner leak point of the fuel tank can be detected through the outer leak point of the aircraft fuel tank, which has the disadvantages that the whole set of device has a complex structure, is inconvenient to operate, and part of fuel tank leak channels are not simple straight channels, namely, the inner leak point cannot be determined through the outer leak point.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an aircraft structure oil tank sealing detection tool. The method can rapidly determine the internal or external leakage points of the oil tank, solve the problem that the internal or external leakage points are difficult to determine after the oil leakage fault occurs in the external field of the aircraft, and improve the positioning efficiency of the oil leakage fault.

The technical problems to be solved by the utility model are realized by adopting the following technical scheme:

the utility model provides an aircraft structure oil tank sealing detection instrument, is including being the cylinder of hollow cylindric structure, the round hole has been seted up at the top of cylinder, the bottom of cylinder be with the detection terminal surface of being surveyed interface shape adaptation, the sealed recess that realizes sealing between the interface with being surveyed has been seted up on the detection terminal surface.

As a further improvement of the utility model, the outer circle radius of the cylinder is 60mm, the inner circle radius is 50mm, and the thickness is 5mm.

As a further improvement of the utility model, the cylinder is made of resin.

As a further development of the utility model, the cylinder is produced by means of 3D printing technology.

As a further improvement of the utility model, the diameter of the round hole is 10mm.

As a further development of the utility model, the detection end face comprises a plane surface and an arc surface.

As a further improvement of the utility model, the radius of the arc surface is 300mm.

As a further improvement of the utility model, the depth dimension of the sealing groove is 2mm and the width dimension is 3mm.

The beneficial effects of the utility model are as follows:

according to the tool for detecting the sealing of the oil tank of the aircraft structure, disclosed by the utility model, the internal or external leakage points of the oil tank can be rapidly determined, compared with a traditional airtight test, the detection time is shortened by 75%, the detection efficiency is improved, and the problem that the internal or external leakage points are difficult to determine after the oil leakage fault occurs in the external field of the aircraft is solved.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the bottom view of the present utility model;

fig. 4 is a schematic structural diagram of the failure detection principle of the present utility model.

In the figure: 1. a cylinder; 2. a round hole; 3. detecting an end face; 4. sealing the groove; 5. an air supply device; 6. an inflatable hose; 7. a member to be detected.

Detailed Description

In order that the manner in which the utility model is attained, as well as the features and advantages thereof, will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

As shown in fig. 1 to 3, an aircraft structure oil tank seal detection tool is a hollow cylindrical structure cylinder 1 with an outer circle radius of 60mm, an inner circle radius of 50mm and a thickness of 5mm, and in order to facilitate rapid forming of the tool, the cylinder 1 is made of resin materials through a 3D printing technology.

A round hole 2 with the diameter of 10mm is formed in the top of the cylinder 1, and when the cylindrical body is used, HM109 sealant is coated on the round hole 2 to install and connect the straight-through pipe joint HB4-4-2-6 and the locking nut HB4-46M 12X 1.

The bottom of the cylinder 1 is provided with a detection end face 3 which is matched with the shape of the detected interface, the detection end face 3 is divided into a plane and an arc surface, the radius of the arc surface is 300mm, and the cylinder is suitable for the outer skin of the oil tank with the detected interface being the arc surface.

Further, the detecting end face 3 is provided with a sealing groove 4 with the depth of 2mm and the width of 3mm, and sealing rubber strips are adhered in the sealing groove 4 to realize sealing with the detected surface.

When the novel air supply device is used, as shown in fig. 4, an air supply device 5, an air charging hose 6 and a cylinder 1 are sequentially connected, wherein a connecting joint with internal threads of M12×1 is arranged on the end head of the air charging hose 6, a straight-through pipe joint HB4-4-2-6 and a locking nut HB4-46M12×1 are arranged on a round hole 2 of the cylinder 1, and a sealing rubber strip is adhered to a sealing groove 4 at the bottom of the cylinder 1; then, brushing neutral soapy water on the inner surface of the oil seepage area of the structural oil tank, and protecting the surrounding area; then fixing by hand and covering the cylinder 1 on the surface of a fastener or a joint in the leakage area of the detected piece 7, so that the detection end face 3 is completely contacted and attached with the detected interface; then, the switch of the air supply device 5 is started, the air supply pressure is regulated, and the output pressure is kept to be 39kpa; the internal leakage points are determined by observing whether the surface of the detected piece 7 is bubbling or not through the inspection port by means of a reflector, an explosion-proof power supply and other tools, the speed in the inspection process is not too high, the fasteners or joints on the outer surface of the structural oil tank are inspected one by one, and the inspection time of each part is not less than 30 seconds; marking the detected leakage points on the inner surface by using a marker; after the detection is completed, the air supply device 5 is closed, and the soapy water in the oil tank is removed.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An aircraft structure oil tank seals detects instrument which characterized in that: including being hollow cylinder structure's cylinder (1), round hole (2) have been seted up at the top of cylinder (1), and the bottom of cylinder (1) is with the detection terminal surface (3) of being detected interface shape adaptation, has seted up on detection terminal surface (3) realize with the sealed recess (4) of being detected between the interface.

2. An aircraft structure tank seal inspection tool according to claim 1, wherein: the outer circle radius of the cylinder (1) is 60mm, the inner circle radius is 50mm, and the thickness is 5mm.

3. An aircraft structure tank seal inspection tool according to claim 1, wherein: the cylinder (1) is made of resin.

4. An aircraft structure tank seal inspection tool according to claim 1, wherein: the cylinder (1) is manufactured by 3D printing technology.

5. An aircraft structure tank seal inspection tool according to claim 1, wherein: the diameter of the round hole (2) is 10mm.

6. An aircraft structure tank seal inspection tool according to claim 1, wherein: the detection end face (3) comprises a plane and an arc surface.

7. An aircraft structure tank seal inspection tool according to claim 6, wherein: the radius of the arc surface is 300mm.

8. An aircraft structure tank seal inspection tool according to claim 1, wherein: the depth dimension of the sealing groove (4) is 2mm, and the width dimension is 3mm.