CN211930186U - Aircraft landing gear wire harness with rigid and flexible combined structure - Google Patents
Aircraft landing gear wire harness with rigid and flexible combined structure Download PDFInfo
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- CN211930186U CN211930186U CN202020873921.XU CN202020873921U CN211930186U CN 211930186 U CN211930186 U CN 211930186U CN 202020873921 U CN202020873921 U CN 202020873921U CN 211930186 U CN211930186 U CN 211930186U
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Abstract
The utility model provides an undercarriage pencil of rigidity flexible composite construction has solved current undercarriage pencil and can not satisfy the problem that requires in the aspect of electromagnetic shield, anticorrosion, ageing resistance, fire-retardant fire prevention, waterproof sealing, anti-vibration shock resistance. The utility model discloses a pencil includes the wire, and the wire forms first branch wire and second branch wire in first branch department and second branch department, from left to right is equipped with first flexible protection section, first branch ware, the flexible protection section of second, first rigidity protection section, second deconcentrator, the flexible protection section of second, the flexible protection section of third in proper order in the periphery of wire. The utility model discloses a pencil can improve reliability, security, maintainability, guarantee nature, environmental suitability and the product life of aircraft undercarriage system, and the installation of being convenient for simultaneously is laid, guarantees the whole waterproof and impact strength of undercarriage cable seal.
Description
Technical Field
The utility model belongs to the technical field of the undercarriage pencil, a flexible integrated configuration's of rigidity undercarriage pencil is related to.
Background
The landing gear of the airplane is equivalent to a life support pillar of the airplane, and a landing gear wire harness is a nervous system of the life support pillar, is an important component of an electrical interconnection system of the airplane, is applied to all airplanes, and determines the performance, reliability and safety of the airplane according to the technical level. With the increasing requirements on indexes such as functional performance, environment resistance, reliability and safety of an airplane and the wide application of an airplane telex system, the wire harness of the airplane landing gear is developing towards the direction of functional diversity, complex structure, higher reliability, longer service life and serial forward design. The aircraft landing gear wire harness has higher requirements on electromagnetic shielding, corrosion prevention, ageing resistance, flame retardance, fire prevention, waterproof sealing and vibration and impact resistance, and is convenient to install and apply, and the existing aircraft landing gear wire harness cannot meet the current requirements.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an undercarriage pencil of flexible integrated configuration of rigidity, this pencil can improve reliability, security, maintainability, guarantee nature, environmental suitability and the product life of undercarriage system, and the installation of being convenient for simultaneously is laid, guarantees undercarriage cable integral sealing waterproof and shock resistance.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a wire harness of an aircraft landing gear with a rigid and flexible combined structure comprises a wire, wherein a first branch position and a second branch position are arranged on the wire, the wire forms a first branch wire and a second branch wire at the first branch position and the second branch position, the left end of the wire is connected with a first electric connector through a first tail accessory, the right end of the wire is connected with a second electric connector through a second tail accessory, the tail end of the first branch wire is connected with a third electric connector through a third tail accessory, and the tail end of the second branch wire is connected with a fourth electric connector through a fourth tail accessory;
a first flexible protection section, a first splitter, a second flexible protection section, a first rigid protection section, a second splitter, a second rigid protection section and a third flexible protection section are sequentially arranged on the periphery of the lead from left to right;
a fourth flexible protection section is arranged on the periphery of the first branch lead, and a third rigid protection section and a fifth flexible protection section are sequentially arranged on the periphery of the second branch lead;
one end of the first flexible protection section is connected with the first tail accessory, the first splitter is arranged on the periphery of a lead at a first branch, the first end of the first splitter is connected with the other end of the first flexible section, the second end of the first splitter is connected with one end of the second flexible protection section, the third end of the first splitter is connected with the fourth flexible protection section, the other end of the fourth flexible protection section is connected with the third tail accessory, the other end of the second flexible protection section is connected with one end of the first rigid protection section, the second splitter is arranged on the periphery of a lead at a second branch, the other end of the first rigid protection section is connected with the first end of the second splitter, the second end of the second splitter is connected with one end of the second rigid protection section, the third end of the second splitter is connected with the third rigid protection section, and the other end of the second rigid protection section is connected with one end of the third flexible section, the other end of the third flexible protection section is connected with a second tail accessory;
the other end of the third rigid protection section is connected with a fifth flexible protection section, and the other end of the fifth flexible protection section is connected with a fourth tail accessory.
Furthermore, the first rigid protection section, the second rigid protection section and the third rigid protection section are all stainless steel bent pipes, and the stainless steel bent pipes have certain three-dimensional space angles.
Furthermore, the first to fifth flexible protection sections have the same structure and respectively comprise a plastic corrugated pipe, a wave-proof sleeve and a heat-shrinkable sleeve which are sequentially coated from inside to outside.
Furthermore, the plastic corrugated pipe is made of polytetrafluoroethylene materials, and the heat-shrinkable sleeve is made of modified fluororubber.
Further, the first wire divider and the second wire divider are both made of 316L stainless steel materials.
Furthermore, the second deconcentrator is connected with the first rigid protection section, the second rigid protection section and the third rigid protection section through pipe joints, one end of each pipe joint is fixedly welded with the first rigid protection section, the second rigid protection section and the third rigid protection section, and the other end of each pipe joint is connected with the first end, the second end and the third end of the second deconcentrator in a thread matching mode.
Further, the pipe joint is made of 316L stainless steel materials.
Furthermore, the first end, the second end and the third end of the first splitter are respectively fixed with the first flexible protection section, the second flexible protection section and the fourth flexible protection section, the second flexible protection section and the first rigid protection section, the second rigid protection section and the third flexible protection section, and the third rigid protection section and the fifth flexible protection section through binding bands and then are sealed and fixed by adopting a mold shrink sleeve.
Further, the die shrink sleeve is made of modified fluororubber.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses the connection of pencil with each electric connector is flexible protection section, and flexible protection section is from inside to outside in proper order the cladding plastic corrugated pipe, prevent ripples cover and heat shrinkage bush multilayer protective structure, and the installation of the pencil of being convenient for is laid and is dismantled the maintenance.
(2) The first wire splitter and the second wire splitter are made of 316L stainless steel materials and have an electromagnetic shielding function, the rigid and flexible connection parts are sealed and protected by adopting a mold shrinkage sleeve, and the wires are distributed in the flexible and rigid protection structures and are finally connected into the electric connectors.
(3) The utility model discloses an each electric connector, each afterbody annex, coupling, first deconcentrator, second deconcentrator, each rigidity protection section all adopt 316L stainless steel material to make, and this material mechanical strength is high, corrosion resistance is good for the whole mechanical strength of undercarriage pencil is high, corrosion resistance is strong, and shock resistance, vibration ability are outstanding.
(4) The rigidity protection section and the pipe joint are filled with hot melt adhesive through seamless welding and the threaded connection part of the pipe joint and the second line splitter, waterproof sealing performance is guaranteed, the underwater use requirement of a shallow water area is met, and the product integrally has 360-degree electromagnetic shielding capacity through the close connection matching of the stainless steel bent pipe and the wave prevention sleeve.
(5) Each electric connector, each tail accessory, the pipe joint, the first wire divider, the second wire divider and each rigid protection section are made of 316L stainless steel materials, the corrugated pipe is made of polytetrafluoroethylene materials, and the heat-shrinkable sleeve and the die-shrinkable sleeve are made of modified fluororubber materials, so that the whole undercarriage wire harness has the advantages of corrosion resistance, ageing resistance, flame retardance and fire resistance, the reliability of the product is improved, and the service life of the product is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a connection structure of a second splitter;
fig. 3 is a schematic view of a connection structure of the fifth flexible guard section.
In the figure: 1-a wire; 2-a first caudal appendage; 3-a first electrical connector; 4-a second caudal appendage; 5-a second electrical connector; 6-third caudal appendage; 7-a third electrical connector; 8-fourth caudal appendage; 9-a fourth electrical connector; 10-a first flexible guard section; 11-a first splitter; 12-a second flexible guard section; 13-a first rigid protective segment; 14-a second splitter; 15-a second rigid guard section; 16-a third flexible guard section; 17-a fourth flexible guard section; 18-a third rigid guard section; 19-a fifth flexible guard section; 20-pipe joint; 21-plastic bellows; 22-wave proof sleeve; 23-heat shrink tubing; 24-a cassette; 25-die shrinkage sleeve; 26-connecting locking plate; 27-a lock washer; 28-a lock nut; 29-limit table.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1, the aircraft landing gear wire harness of a rigid flexible combined structure comprises a wire 1, wherein the wire 1 is provided with a first branch position and a second branch position, the wire 1 forms a first branch wire and a second branch wire at the first branch position and the second branch position, the left end of the wire 1 is connected with a first electric connector 3 through a first tail accessory 2, the right end of the wire 1 is connected with a second electric connector 5 through a second tail accessory 4, the tail end of the first branch wire is connected with a third electric connector 7 through a third tail accessory 6, and the tail end of the second branch wire is connected with a fourth electric connector 9 through a fourth tail accessory 8;
a first flexible protection section 10, a first splitter 11, a second flexible protection section 12, a first rigid protection section 13, a second splitter 14, a second rigid protection section 15 and a third flexible protection section 16 are sequentially arranged on the periphery of the lead 1 from left to right and used for protecting the lead 1;
a fourth flexible protection section 17 is arranged on the periphery of the first branch lead, and a third rigid protection section 18 and a fifth flexible protection section 19 are sequentially arranged on the periphery of the second branch lead;
one end of the first flexible protection section 10 is connected with the first tail accessory 2, the first splitter 11 is arranged on the periphery of the lead 1 at the first branch, the first end of the first splitter 11 is connected with the other end of the first flexible section, the second end of the first splitter 11 is connected with one end of the second flexible protection section 12, the third end of the first splitter 11 is connected with the fourth flexible protection section 17, the other end of the fourth flexible protection section 17 is connected with the third tail accessory 6, the other end of the second flexible protection section 12 is connected with one end of the first rigid protection section 13, the second splitter 14 is arranged on the periphery of the lead 1 at the second branch, the other end of the first rigid protection section 13 is connected with the first end of the second splitter 14, the second end of the second splitter 14 is connected with one end of the second rigid protection section 15, the third end of the second splitter 14 is connected with the third rigid protection section 18, the other end of the second rigid protection section 15 is connected with one end of a third flexible protection section 16, and the other end of the third flexible protection section 16 is connected with the second tail accessory 4;
the other end of the third rigid protection section 18 is connected with a fifth flexible protection section 19, and the other end of the fifth flexible protection section 19 is connected with the fourth tail accessory 8.
The first rigid protection section 13, the second rigid protection section 15 and the third rigid protection section 18 are all stainless steel bent pipes and are made of 316L stainless steel materials, and the stainless steel bent pipes have certain three-dimensional space angles.
Referring to fig. 3, the first to fifth flexible protection sections 10 to 19 have the same structure, and each include a plastic corrugated pipe 21, a wave-proof sleeve 22, and a heat-shrinkable sleeve 23, which are sequentially wrapped from inside to outside.
The plastic corrugated pipe 21 is made of polytetrafluoroethylene materials, and the heat-shrinkable sleeve 23 is made of modified fluororubber.
The first splitter 11 and the second splitter 14 are both made of 316L stainless steel materials.
Referring to fig. 2, the second wire divider 14 is connected with the first rigid protection section 13, the second rigid protection section 15 and the third rigid protection section 18 through pipe joints 20, one end of each pipe joint 20 is welded and fixed with the first rigid protection section 13, the second rigid protection section 15 and the third rigid protection section 18, the other end of each pipe joint is connected with the first end, the second end and the third end of the second wire divider 14 in a threaded matching manner, and hot melt adhesive is filled at the threaded connection positions to ensure waterproof sealing performance.
The first end, the second end and the third end periphery of second deconcentrator 14 all have the external screw thread, and the external screw thread periphery of second end is equipped with connection locking plate 26, check washer 27 and lock nut 28, and the inboard of external screw thread is equipped with spacing platform 29 for the connection between the mounting bracket of pencil and aircraft landing gear pillar is fixed. During the installation, the second end of second deconcentrator 14 passes the mounting hole on the mounting bracket panel, one side of mounting bracket panel is arranged in to connecting locking plate 26, locking washer 27 and lock nut 28 arrange the opposite side of mounting bracket panel in proper order, connecting locking plate 26 end is equipped with the screw, it will be fixed with the mounting bracket to connect locking plate 26 with the screw is passed through the screw through the bolt corresponding and on the mounting bracket, will connect locking plate 26 to fix between spacing platform 29 and mounting bracket panel through screwing up lock nut 28 simultaneously, realize the fixed of pencil and the mounting bracket of aircraft landing gear pillar.
The pipe joint 20 is made of 316L stainless steel material.
And a first end, a second end and a third end of the first splitter 11 are respectively bound and fixed with the first flexible protection section 10, the second flexible protection section 12 and the fourth flexible protection section 17, the second flexible protection section 12 and the first rigid protection section 13, the second rigid protection section 15 and the third flexible protection section 16, and the third rigid protection section 18 and the fifth flexible protection section 19 through the clamping bands 24 and then sealed and fixed by adopting the mold shrinkage sleeve 25.
The mold shrinkage sleeve 25 is made of modified fluororubber.
The first electric connector 3, the second tail accessory 4, the second electric connector 5, the third tail accessory 6, the third electric connector 7, the fourth tail accessory 8 and the fourth electric connector 9 have sealing, anti-loosening and electromagnetic shielding functions and are all made of 316L stainless steel materials.
The utility model discloses an each electric connector, each afterbody annex, coupling, first deconcentrator, second deconcentrator, each rigidity protection section all adopt 316L stainless steel material to make, and this material mechanical strength is high, corrosion resistance is good for the whole mechanical strength of undercarriage pencil is high, corrosion resistance is strong, and shock resistance, vibration ability are outstanding.
The utility model discloses a pencil product adopts the sectional type design, and the main part adopts the stainless steel return bend protection, and each branch's terminal department adopts the protection of the flexible protective tube of multilayer. The branching of the wiring harness and the switching of the rigid-flexible pipe are realized by adopting a deconcentrator, a pipe joint and the like. The branch parts (the first branch part and the second branch part) are structurally connected by adopting a wire divider, the wire divider is made of 316L stainless steel materials and has an electromagnetic shielding function, the connecting parts of each rigid protection section and each flexible protection section are fixed by a clamping band 24 and then are sealed and protected by adopting a mold shrinking sleeve 25, and the wires are distributed in the flexible protection structure and the rigid protection structure and finally connected into each electric connector.
The utility model discloses the pencil has characteristics such as electromagnetic shield, anticorrosion, ageing resistance, fire-retardant fire prevention, waterproof sealing, anti-vibration impact, has improved current undercarriage pencil security, reliability and life-span, has realized that the undercarriage pencil under water uses.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. The aircraft landing gear wire harness with the rigid and flexible combined structure is characterized by comprising a wire, wherein a first branch position and a second branch position are arranged on the wire, the wire forms a first branch wire and a second branch wire at the first branch position and the second branch position, the left end of the wire is connected with a first electric connector through a first tail accessory, the right end of the wire is connected with a second electric connector through a second tail accessory, the tail end of the first branch wire is connected with a third electric connector through a third tail accessory, and the tail end of the second branch wire is connected with a fourth electric connector through a fourth tail accessory;
a first flexible protection section, a first splitter, a second flexible protection section, a first rigid protection section, a second splitter, a second rigid protection section and a third flexible protection section are sequentially arranged on the periphery of the lead from left to right;
a fourth flexible protection section is arranged on the periphery of the first branch lead, and a third rigid protection section and a fifth flexible protection section are sequentially arranged on the periphery of the second branch lead;
one end of the first flexible protection section is connected with the first tail accessory, the first splitter is arranged on the periphery of a lead at a first branch, the first end of the first splitter is connected with the other end of the first flexible section, the second end of the first splitter is connected with one end of the second flexible protection section, the third end of the first splitter is connected with the fourth flexible protection section, the other end of the fourth flexible protection section is connected with the third tail accessory, the other end of the second flexible protection section is connected with one end of the first rigid protection section, the second splitter is arranged on the periphery of a lead at a second branch, the other end of the first rigid protection section is connected with the first end of the second splitter, the second end of the second splitter is connected with one end of the second rigid protection section, the third end of the second splitter is connected with the third rigid protection section, and the other end of the second rigid protection section is connected with one end of the third flexible section, the other end of the third flexible protection section is connected with a second tail accessory;
the other end of the third rigid protection section is connected with a fifth flexible protection section, and the other end of the fifth flexible protection section is connected with a fourth tail accessory.
2. An aircraft landing gear harness of a rigid and flexible composite structure according to claim 1, wherein the first rigid protective section, the second rigid protective section and the third rigid protective section are stainless steel elbows, and the stainless steel elbows have a certain three-dimensional space angle.
3. An aircraft landing gear harness of a rigid and flexible combined structure as claimed in claim 1, wherein the first to fifth flexible protection sections are identical in structure and comprise a plastic corrugated pipe, a wave-proof sleeve and a heat-shrinkable sleeve which are sequentially coated from inside to outside.
4. An aircraft landing gear harness of rigid and flexible composite construction according to claim 3, wherein the corrugated plastics tubing is of polytetrafluoroethylene and the heat shrink tubing is of modified viton.
5. An aircraft landing gear harness in a rigid flexible composite structure as claimed in claim 1, wherein the first and second wire splitters are made of 316L stainless steel.
6. An aircraft landing gear harness of a rigid and flexible combined structure as claimed in claim 1, wherein the second wire divider is connected with the first rigid protection section, the second rigid protection section and the third rigid protection section through pipe joints respectively, one end of each pipe joint is fixedly connected with the first rigid protection section, the second rigid protection section and the third rigid protection section through welding, and the other end of each pipe joint is connected with the first end, the second end and the third end of the second wire divider through a thread matching mode.
7. An aircraft landing gear harness of rigid flexible composite construction according to claim 6, wherein the pipe joint is made of 316L stainless steel.
8. An aircraft landing gear harness of a rigid and flexible combined structure according to claim 1, wherein the first end, the second end and the third end of the first splitter are fixed with the first flexible protection section, the second flexible protection section and the fourth flexible protection section, the second flexible protection section and the first rigid protection section, the second rigid protection section and the third flexible protection section, and the third rigid protection section and the fifth flexible protection section through binding of clamping bands and then are sealed and fixed by using a mold shrinkage sleeve.
9. An aircraft landing gear strand in a rigid flexible composite structure according to claim 8, wherein the shrink sleeve is formed from a modified fluoroelastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020873921.XU CN211930186U (en) | 2020-05-22 | 2020-05-22 | Aircraft landing gear wire harness with rigid and flexible combined structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020873921.XU CN211930186U (en) | 2020-05-22 | 2020-05-22 | Aircraft landing gear wire harness with rigid and flexible combined structure |
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| CN211930186U true CN211930186U (en) | 2020-11-13 |
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| CN202020873921.XU Active CN211930186U (en) | 2020-05-22 | 2020-05-22 | Aircraft landing gear wire harness with rigid and flexible combined structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097946A (en) * | 2021-04-07 | 2021-07-09 | 中航通飞研究院有限公司 | Aircraft wiring harness laying structure |
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2020
- 2020-05-22 CN CN202020873921.XU patent/CN211930186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097946A (en) * | 2021-04-07 | 2021-07-09 | 中航通飞研究院有限公司 | Aircraft wiring harness laying structure |
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