Stainless steel hard tube assembly for aircraft landing gear

Abstract

The invention belongs to the technical field of aircraft electrical matching components, and particularly relates to a stainless steel hard tube component for an aircraft landing gear, which is used for protecting a connecting wire of the aircraft landing gear and comprises a stainless steel tube and a plurality of joints. The plurality of joints are mounted on the stainless steel pipe and are communicated with the hollow part of the stainless steel pipe; the main body of each lead is sleeved on the hollow part, and each end part reaches the outside of each joint; the stainless steel pipe is of a sleeved double-layer structure which is attached to each other. The stainless steel hard tube assembly for the aircraft landing gear has extremely high impact resistance, vibration resistance and the like, so that an internal wire is protected from being damaged, and long-term high-reliability use of a wire harness product is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft electrical matching components, and in particular relates to a stainless steel hard pipe component used for an aircraft landing gear. Background Art

[0002] With the rapid development of the aircraft industry, the use environment of wire harness products is becoming more and more stringent, and the protective measures for wire harness products used to prevent tire explosions at aircraft landing gears are becoming more and more stringent. In response to this requirement, the present invention designs a stainless steel hard tube assembly with an inner sleeve for aircraft landing gears. Summary of the invention

[0003] In view of this, the present invention provides a stainless steel hard tube assembly for aircraft landing gear, which has extremely strong resistance to impact, vibration and the like, thereby protecting the internal wires from damage and ensuring long-term high-reliability use of the wiring harness product.

[0004] The technical solution of the present invention is:

[0005] A stainless steel hard tube assembly for aircraft landing gear is used to protect the connecting wires of the aircraft landing gear. The stainless steel hard tube assembly comprises a stainless steel tube and a plurality of joints; the plurality of joints are all installed on the stainless steel tube and are connected to the hollow part of the stainless steel tube; the main body of each wire is sleeved in the hollow part, and each end reaches outside the joints; the stainless steel tube is a double-layer structure that fits each other.

[0006] Furthermore, the outer layer of the stainless steel pipe is made of 0Cr18Ni9, the inner layer is made of polytetrafluoroethylene, and the joint is made of 1Cr18Ni9Ti.

[0007] Furthermore, the outer wall thickness of the stainless steel tube is 0.8-1.2 mm.

[0008] Furthermore, the inner wall thickness of the stainless steel tube is 0.8-1.2 mm.

[0009] Furthermore, each of the joints is welded to the stainless steel pipe based on a argon arc welding process.

[0010] Furthermore, the end of each joint is provided with a thread for connecting to the landing gear assembly.

[0011] Furthermore, the stainless steel light is provided with a plurality of bending parts, and the bending angle of each bending part is not greater than 90°.

[0012] The beneficial effects of the present invention are:

[0013] The stainless steel hard tube assembly of this structure can effectively protect the wires in the tube from mechanical damage and can work reliably for a long time.

[0014] The stainless steel tube used in the present invention has a double-layer structure, the outer layer is made of stainless steel with high mechanical strength, and the inner layer is made of polytetrafluoroethylene with a smooth surface, which reduces wear with the wire and ensures long-term use of the wiring harness product.

[0015] The stainless steel tube of the present invention has a double-layer structure, the outer layer is made of 0Cr18Ni9 stainless steel, and the inner layer is made of PTFE polytetrafluoroethylene; the outer layer has high mechanical strength, and the inner layer has a smooth surface and is not easy to wear the conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a stainless steel hard tube assembly used for an aircraft landing gear in a specific embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of a stainless steel tube in a specific embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection between the joint and the stainless steel pipe in a specific embodiment of the present invention;

[0020] 1. Stainless steel pipe; 2. Connector. DETAILED DESCRIPTION

[0021] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0022] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0023] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0024] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The illustrations only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0026] In one embodiment of the present invention, a stainless steel hard tube assembly for aircraft landing gear is provided, which is used to protect the connecting wires of the aircraft landing gear. Figure 1-Figure 3 , including a stainless steel tube 1 and multiple joints 2; the multiple joints 2 are all installed on the stainless steel tube 1 and are connected to the hollow part of the stainless steel tube 1; the main body of each wire is sleeved in the hollow part, and each end reaches the outside of each joint 2; the stainless steel tube 1 is a double-layer structure that fits each other.

[0027] In this embodiment, the outer layer of the stainless steel tube 1 is made of 0Cr18Ni9, and the inner layer is made of polytetrafluoroethylene.

[0028] In this embodiment, the outer wall thickness of the stainless steel tube 1 is 0.8-1.2 mm.

[0029] In this embodiment, the inner wall thickness of the stainless steel tube 1 is 0.8-1.2 mm.

[0030] In this embodiment, each of the joints 2 is welded to the stainless steel pipe 1 based on a argon arc welding process.

[0031] In this embodiment, the end of each joint 2 is provided with a thread for connecting to a landing gear assembly.

[0032] In this embodiment, the stainless steel light is provided with a plurality of bending parts, and the bending angle of each bending part is not greater than 90°.

[0033] The stainless steel pipe 1 of this embodiment is a double-layer structure, the outer layer is 0Cr18Ni9 stainless steel, the inner layer is PTFE polytetrafluoroethylene, the inner and outer layer wall thickness is 1mm, and the tolerance of each dimension is ±0.2mm; the stainless steel joint 2 is made of 1Cr18Ni9Ti stainless steel, and the joint 2 is provided with threads. The stainless steel pipe 1 and the stainless steel joint 2 are connected by argon arc welding. The stainless steel hard pipe assembly of this structure can effectively protect the wire in the pipe from mechanical damage and can work reliably for a long time. The material of the joint 2 of this embodiment is 1Cr18Ni9Ti.

[0034] The stainless steel tube 1 used in the stainless steel hard tube assembly for aircraft landing gear in this embodiment has a double-layer structure, with an outer layer made of stainless steel with high mechanical strength and an inner layer made of polytetrafluoroethylene with a smooth surface to reduce wear with the wires and ensure long-term use of the wiring harness product.

[0035] The stainless steel tube 1 of the present embodiment is a double-layer structure, the outer layer is made of 0Cr18Ni9 stainless steel, and the inner layer is made of PTFE polytetrafluoroethylene; the outer layer has high mechanical strength, and the inner layer has a smooth surface and is not easy to wear the conductor.

[0036] The joint 2 of this embodiment is a stainless steel joint 2 made of 1Cr18Ni9Ti stainless steel with high mechanical strength. The joint 2 is provided with threads.

[0037] In this embodiment, the stainless steel pipe 1 and the stainless steel joint 2 are connected by argon arc welding, and the connection strength is high.

[0038] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure 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 disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A stainless steel hard tube assembly for aircraft landing gear, used to protect the connecting wires of the aircraft landing gear, characterized in that: The stainless steel hard tube assembly includes a stainless steel tube and a plurality of joints; the plurality of joints are installed on the stainless steel tube and are connected to the hollow part of the stainless steel tube; the main body of each wire is sleeved in the hollow part, and each end reaches outside the joints; the stainless steel tube is a double-layer structure that fits each other.

2. The stainless steel hard tube assembly for aircraft landing gear according to claim 1, characterized in that: The outer layer of the stainless steel pipe is made of 0Cr18Ni9, and the inner layer is made of polytetrafluoroethylene; the material of the joint is 1Cr18Ni9Ti.

3. The stainless steel hard tube assembly for aircraft landing gear according to claim 2, characterized in that: The outer wall thickness of the stainless steel tube is 0.8-1.2 mm.

4. The stainless steel hard tube assembly for aircraft landing gear according to claim 3, characterized in that: The inner wall thickness of the stainless steel tube is 0.8-1.2 mm.

5. The stainless steel hard tube assembly for aircraft landing gear according to claim 4, characterized in that: Each of the joints is welded on the stainless steel pipe based on a argon arc welding process.

6. The stainless steel hard tube assembly for aircraft landing gear according to claim 5, characterized in that: The end of each joint is provided with a thread for connecting the landing gear assembly.

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