Aircraft wire harness pipe joint disassembly device

Abstract

The present invention discloses a disassembly device for a wire harness pipe joint of an aircraft, comprising: an upper clamp, which is a cylinder with a large upper part and a small lower part, with a stepped through hole with a large upper part and a small lower part, a notch on the side, and horizontal grooves on both sides of the notch; an upper plug, which has a shape corresponding to the notch, and has protruding edges on both sides; an intermediate spiral hoop, which is a notched circular tube spirally divided into upper and lower hoops; a lower clamp, which is a cylinder with a large lower part and a small upper part, with a through hole with a coaxial upper and lower circle, a notch on the side, and horizontal grooves on both sides of the notch; a lower plug, which has a shape corresponding to the notch, and has protruding edges at positions corresponding to the horizontal grooves on both sides; the square column of the upper clamp is inserted into the square hole of the lower clamp. The present invention fills the gap, is easy to operate, has low maintenance cost and risk, can quickly and safely complete disassembly, and ensures operation safety and efficiency.

Description

Technical Field

[0001] The invention relates to a disassembly tool for aircraft parts, in particular to a disassembly device for aircraft wire harness and wire pipe joints. Background Art

[0002] Aircraft wire harness conduits are widely used in the bearing and protection of aircraft wire harnesses, especially the wire harness conduits of landing gear systems. In harsh working environments, the metal mesh of the wire harness conduits will be damaged, and sometimes the wire harness inside the wire harness conduits also needs to be repaired. The wire harness conduit joint includes a metal bushing, a metal clamp, a plastic conduit and a metal mesh. The wire harness conduit joint is installed at the end of the wire harness conduit. The metal mesh of the conduit is closed by a metal bushing and firmly fixed to the conduit joint by an integrally formed metal clamp. The end of the plastic conduit is inside the conduit joint and is wrapped inside the metal mesh as a whole. At present, there are no tools available from foreign original manufacturers, and there are no similar tools available in China. Because the metal clamp is difficult to disassemble intact, when the conduit needs to be repaired, it can only be scrapped together with the wire harness and directly replaced with new aviation materials, resulting in excessively high maintenance costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an aircraft wire harness wire tube joint disassembly device, which fills the gap that the original factory has no wire tube joint disassembly tools, and is easy to operate, has low maintenance costs and risks, can quickly and safely complete the disassembly, and ensures operation safety and efficiency.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] An aircraft wire harness pipe joint disassembly device, characterized by comprising:

[0006] An upper fixture 3, which is a coaxial two-step stepped column with a larger upper part and a smaller lower part, the uppermost part is an oblate cylinder, the middle part is a cylinder, and the lowermost part is a square cylinder. A stepped through hole with a larger upper part and a smaller lower part is opened in the center of the column, and a notch is opened on the side of the column, which passes through the upper and lower bottom surfaces and directly reaches the through hole. The two sides of the notch are parallel, and corresponding horizontal grooves are opened on both sides of the notch of the oblate cylinder;

[0007] An upper plug 4, the shape of which corresponds to the cylindrical notch, and protrusions are provided on both sides at positions corresponding to the horizontal grooves of the cylindrical notch, so that the upper plug 4 can be inserted into and pulled out of the cylindrical notch from the side but cannot be relatively displaced up and down;

[0008] An intermediate spiral hoop 1 is a notched circular tube which is spirally split into upper and lower hoops along one side of the notch to the other side. The inner diameter of the circular tube matches and is sleeved on the outer diameter of the middle cylinder of the upper clamp 3 and the upper cylinder of the lower clamp 6. Corresponding threaded holes are drilled along both ends of the side diameter of the upper hoop and the lower hoop to be screwed in with a rotating handle with a threaded front end;

[0009] A lower fixture 5 is a coaxial one-step stepped cylinder with a larger bottom and a smaller top. The bottom is an oblate cylinder and the top is a cylinder. A through hole coaxial with the upper circle is opened in the center of the cylinder. A notch penetrating the upper and lower bottom surfaces and directly reaching the through hole is opened on the side of the cylinder. The two sides of the notch are parallel. Corresponding horizontal grooves are opened on both sides of the notch of the oblate cylinder.

[0010] A lower plug 6, the shape of which corresponds to the cylindrical notch, and protruding edges are provided on both sides at positions corresponding to the horizontal grooves of the cylindrical notch, so that the lower plug 6 can be inserted and pulled out of the cylindrical notch from the side but cannot be relatively displaced up and down;

[0011] The square column of the upper clamp 3 can be inserted into the square hole of the lower clamp 5 to play a guiding and limiting role so that the upper and lower clamps can be relatively displaced up and down. The outer diameter of the middle cylinder of the upper clamp 3 corresponds to the outer diameter of the upper cylinder of the lower clamp 6.

[0012] When in use, the wire tube and the wire tube clamping ring are placed in the inner hole of the upper clamp 3, the lower square column of the upper clamp 3 cooperates with the upper square hole of the lower clamp 5 to move relatively up and down (while preventing rotation), the upper plug 4 and the lower plug 6 are respectively part of the upper clamp 3 and the lower clamp 5, and the inner hole of the lower clamp 5 is used to place and fix the bushing of the wire tube joint.

[0013] Preferably, the pitch of the spiral segmentation of the spiral hoop 1 is 20 mm.

[0014] Preferably, the upper clamp 3 is made of high-strength steel material with tensile and compressive strength greater than 1379 MPa (English strength unit, American Standard 200 KSI).

[0015] Preferably, the upper plug 4 is made of high-strength steel material with tensile and compressive strength greater than 1379 MPa (English strength unit, American standard 200 KSI).

[0016] Compared with the prior art, the disassembly device of the present invention fills the gap in wire pipe joint disassembly tools, can facilitate the disassembly of wire pipe joints of various part numbers, and ensure the safety of people and parts when the wire pipes are disassembled. The device itself is easy to operate and has reliable and durable quality. It can realize the use of wire pipe products of different models through a set of interchangeable upper and lower clamps and upper and lower plugs, and has good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 2. It is a schematic diagram of an embodiment of a device for removing a wire harness pipe joint of an aircraft according to the present invention;

[0019] Figure 2 It is a three-dimensional exploded schematic diagram of an embodiment;

[0020] Figure 3a is a schematic front view of an upper clamp of an embodiment;

[0021] Figure 3b is a left side schematic diagram of an upper clamp of an embodiment;

[0022] Figure 3c is a schematic top view of an upper clamp of an embodiment;

[0023] Figure 3d is a bottom view of the upper clamp of the embodiment;

[0024] Figure 3e is along Figure 3a AA line cross-sectional view;

[0025] Figure 4a 2 is a schematic diagram of the front view of the upper plug of the embodiment;

[0026] Figure 4b 2 is a schematic left view of an upper jammer of an embodiment;

[0027] Figure 4c is a schematic top view of an upper jammer of an embodiment;

[0028] Figure 4d 2 is a bottom view of an upper jammer of an embodiment;

[0029] Figure 4e This is one of the three-dimensional schematic diagrams of the upper plug of the embodiment;

[0030] Figure 4f This is the second three-dimensional schematic diagram of the upper plug of the embodiment;

[0031] Figure 5a is a schematic front view of the lower clamp of the embodiment;

[0032] Figure 5b is a left side schematic view of the lower clamp of the embodiment;

[0033] Figure 5c is a schematic top view of the lower clamp of the embodiment;

[0034] Figure 5d is a bottom view schematic diagram of the lower clamp of the embodiment;

[0035] Figure 5e is along Figure 5a DD line cross-sectional diagram;

[0036] Figure 6a 2 is a schematic front view of a lower jammer of an embodiment;

[0037] Figure 6b 2 is a left side schematic diagram of a lower jammer of an embodiment;

[0038] Figure 6c is a schematic top view of a lower jammer of an embodiment;

[0039] Figure 6d 2 is a bottom view of the lower jammer of the embodiment;

[0040] Figure 6e This is one of the three-dimensional schematic diagrams of the lower plug of the embodiment;

[0041] Figure 6f This is the second three-dimensional schematic diagram of the lower plug of the embodiment;

[0042] Figure 7a is a schematic front view of an upper hoop or a lower hoop of a spiral hoop of an embodiment;

[0043] Figure 7b It is a schematic left view of an upper hoop or a lower hoop of a spiral hoop of an embodiment;

[0044] Figure 7c is a schematic top view of an upper hoop or a lower hoop of a spiral hoop of an embodiment;

[0045] Figure 7d is a schematic cross-sectional view of an upper hoop or a lower hoop of a spiral hoop of an embodiment;

[0046] Figure 7e It is a three-dimensional schematic diagram of an upper hoop or a lower hoop of a spiral hoop of an embodiment.

[0047] Description of Reference Numerals

[0048] 1- spiral clamp; 2- handle; 3- upper clamp; 4- upper plug; 5- lower clamp; 6- lower plug. DETAILED DESCRIPTION

[0049] Referring to the accompanying drawings, an embodiment of a device for removing a wire harness pipe joint of an aircraft according to the present invention comprises:

[0050] An upper fixture 3 is a coaxial two-step stepped column with a larger upper part and a smaller lower part, the uppermost part is an oblate cylinder, the middle part is a cylinder, and the lowermost part is a square cylinder. A stepped through hole with a larger upper part and a smaller lower part is opened in the center of the column, and a notch is opened on the side of the column, which passes through the upper and lower bottom surfaces and directly reaches the through hole. The two sides of the notch are parallel, and corresponding horizontal grooves are opened on both sides of the notch of the oblate cylinder; an upper plug 4 is matched, the shape of which corresponds to the notch of the column, and protruding edges are provided on both sides of the two sides corresponding to the horizontal grooves of the notch of the column, so that the upper plug 4 can be inserted and pulled out of the notch of the column from the side but cannot be relatively displaced up and down;

[0051] An intermediate spiral hoop 1 is a notched circular tube which is spirally split into upper and lower hoops along one side of the notch to the other side. The inner diameter of the circular tube matches and is sleeved on the outer diameter of the middle cylinder of the upper clamp 3 and the upper cylinder of the lower clamp 6. Corresponding threaded holes are drilled along both ends of the side diameter of the upper hoop and the lower hoop to be screwed in with a rotating handle with a threaded front end;

[0052] A lower clamp 5 is a coaxial stepped cylinder with a larger bottom and a smaller top. The lower part is an oblate cylinder and the upper part is a cylinder. A through hole coaxial with the upper circle is opened in the center of the cylinder. A notch penetrating the upper and lower bottom surfaces and directly reaching the through hole is opened on the side of the cylinder. The two sides of the notch are parallel. Corresponding horizontal grooves are opened on both sides of the notch of the oblate cylinder; a lower plug 6 is matched, the shape of which corresponds to the notch of the cylinder. The two sides of the notch are provided with protruding edges at the positions corresponding to the horizontal grooves of the notch of the cylinder, so that the lower plug 6 can be inserted and pulled out of the notch of the cylinder from the side but cannot be relatively displaced up and down;

[0053] The square column of the upper clamp 3 can be inserted into the square hole of the lower clamp 5 to play a guiding and limiting role so that the upper and lower clamps can be relatively displaced up and down. The outer diameter of the middle cylinder of the upper clamp 3 corresponds to the outer diameter of the upper cylinder of the lower clamp 6.

[0054] The implementation steps of the aircraft wire harness pipe joint disassembly device of the present invention are as follows:

[0055] (1) preparing a wire conduit to be disassembled and the aircraft wire harness conduit joint disassembly device of the present invention;

[0056] (2) Remove the upper plug 4 and the lower plug 6;

[0057] (3) Pass the wire tube through the lower clamp 5, spiral clamp 1 and upper clamp 3 (insert it through the side notch);

[0058] (4) Place the bushing part of the wire pipe joint into the lower fixture 5;

[0059] (5) Install the lower plug 6 onto the lower fixture 5;

[0060] (6) Install the upper plug 4 onto the upper fixture 3;

[0061] (7) Slightly rotate the spiral hoop 1 to adjust the position of the handle 2 so that the upper and lower handles are parallel;

[0062] (8) Confirm that the bushing of the wire pipe joint is in the inner holes of the lower clamp 5 and the lower plug 6;

[0063] (9) Confirm that the metal clamp ring of the wire pipe joint is on the outside of the upper clamp 3 and the upper plug 4;

[0064] (10) From Figure 2 Looking down, the upper and lower handles 2 are quickly rotated counterclockwise in opposite directions to drive the spiral hoop 1 to rotate;

[0065] (11) The upper clamp 3 and the upper plug 4 are pushed upward by the upper part of the spiral hoop 1, while the lower clamp 5 and the lower plug 6 are pushed downward by the lower part of the spiral hoop 1;

[0066] (12) The metal clamping ring will be pushed out of the clamping groove position on the wire tube by the upper clamp 3 and the upper plug 4, and the disassembly is completed.

Claims

1. An aircraft wire harness pipe joint disassembly device, characterized in that include: An upper fixture (3) is a coaxial two-step stepped column with a larger upper portion and a smaller lower portion, the uppermost portion being an oblate cylinder, the middle portion being a cylinder, and the lowermost portion being a square cylinder, a stepped through hole with a larger upper portion and a smaller lower portion being provided at the center of the column, a notch penetrating the upper and lower bottom surfaces and directly reaching the through hole being provided on the side surface of the column, the two side surfaces of the notch being parallel, and corresponding horizontal grooves being provided on the two side surfaces of the notch of the oblate cylinder; An upper plug (4) having a shape corresponding to the cylindrical notch, and having protruding edges on both side surfaces at positions corresponding to the horizontal grooves of the cylindrical notch, so that the upper plug can be inserted into and pulled out of the cylindrical notch from the side but cannot be relatively displaced up and down; An intermediate spiral hoop (1) is a notched circular tube which is spirally split into upper and lower hoops along one side of the notch to the other side. The inner diameter of the circular tube matches and is sleeved on the outer diameter of the middle cylinder of the upper clamp and the upper cylinder of the lower clamp. Corresponding threaded holes are drilled along the side diameters of the upper hoop and the lower hoop at both ends to match a rotating handle with a threaded front end to be screwed in. A lower fixture (5) is a coaxial one-step cylindrical body with a larger bottom and a smaller top. The bottom is an oblate cylinder and the top is a cylinder. A through hole coaxial with the upper circle is opened in the center of the cylinder. A notch is opened on the side of the cylinder, which passes through the upper and lower bottom surfaces and directly reaches the through hole. The two side surfaces of the notch are parallel. The two side surfaces of the notch of the oblate cylinder are opened with corresponding horizontal grooves. A lower plug (6) having a shape corresponding to the cylindrical notch, and having protruding edges on both side surfaces at positions corresponding to the horizontal grooves of the cylindrical notch, so that the lower plug can be inserted into and pulled out of the cylindrical notch from the side but cannot be relatively displaced up and down; The square column of the upper fixture can be inserted into the square hole of the lower fixture to play a guiding and limiting role so that the upper and lower fixtures can move up and down relatively, and the outer diameter of the middle cylinder of the upper fixture corresponds to the outer diameter of the upper cylinder of the lower fixture; The pitch of the spiral section of the spiral hoop is 20 mm.

2. The aircraft wire harness pipe joint removal device according to claim 1, characterized in that: The upper clamp is made of high-strength steel material with tensile and compressive strength greater than 1379 MPa.

3. The aircraft wire harness pipe joint removal device according to claim 1 or 2, characterized in that: The upper plug is made of high-strength steel material with tensile and compressive strength greater than 1379 MPa.

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