Wear-resistant guide device

Abstract

The utility model belongs to the technical field of airplane transmission mechanism design, and particularly relates to a wear-resistant guide device. The device mainly comprises a wear-resisting sleeve (1) which is of a barrel structure with a first notch (11), a plurality of inverted teeth are arranged on the inner wall face of a barrel of the wear-resisting sleeve (1) in the axial direction, and an annular groove (12) is formed in the outer wall face of the barrel of the wear-resisting sleeve (1); the wear-resistant sleeve (2) is divided into a front section and a rear section along the axial direction, a plurality of inverted teeth are arranged on the outer wall surface of the front section, the rear section is divided into a plurality of parts along the circumferential direction, the wear-resistant sleeve (2) is positioned in the wear-resistant sleeve (1), and the front section of the wear-resistant sleeve (2) is connected to the front position of the wear-resistant sleeve (1) through the inverted teeth; inverted teeth are arranged on the outer wall of the top sleeve (3), the top sleeve (3) is arranged outside the rear section of the wear-resistant sleeve (2) in a sleeving mode, the top sleeve (3) is connected to the rear position of the wear-resistant sleeve (1) through the inverted teeth, and the top sleeve (3) is provided with a second notch (31). The structure is simple, and rapid and convenient installation on the single side of the structural web or the partition plate is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of aircraft transmission mechanism design, and in particular relates to a wear-resistant guide device. Background Art

[0002] Due to space and access constraints, transmission components like cables and rods often need to pass through structural webs and bulkheads in aircraft mechanical connections. In actual use, these components are subject to contact, compression, and friction with the webs and bulkheads, often due to structural deformation and vibration. This can lead to damage or breakage, posing safety risks.

[0003] To this end, wear-resistant guides are typically installed on the structural webs or bulkheads, through which transmission components pass. Conventional wear-resistant guides must be installed from both sides of the webs or bulkheads when connected and installed. However, in many engineering fields, transmission components such as cables and pull rods inevitably require disassembly and maintenance from only one side of the structure during installation, making disassembly and maintenance of the wear-resistant guides more difficult. Utility Model Content

[0004] In order to solve the above problems, the present application provides a wear-resistant guide device, which mainly includes:

[0005] The wear-resistant sleeve is a cylindrical structure with a first notch, the inner wall surface of the wear-resistant sleeve has a plurality of inverted teeth along the axial direction, and the outer wall surface has an annular groove;

[0006] The wear-resistant sleeve is divided into a front section and a rear section along the axial direction. The outer wall surface of the front section is provided with a plurality of inverted teeth. The rear section is provided with multiple parts along the circumferential direction. The wear-resistant sleeve is located in the wear-resistant sleeve. The front section of the wear-resistant sleeve is connected to the front position of the wear-resistant sleeve through the inverted teeth.

[0007] The top sleeve has an outer wall with inverted teeth, is sleeved outside the rear section of the wear-resistant sleeve, and is connected to the rear position of the wear-resistant sleeve through the inverted teeth. The top sleeve has a second notch.

[0008] Preferably, the rear section of the cylinder of the wear-resistant sleeve is provided with two parts, namely a left wear-resistant sleeve and a right wear-resistant sleeve.

[0009] Preferably, the inner wall surface of the wear-resistant sleeve is provided with a step, and the inner diameter at the front position is smaller than the inner diameter at the rear position.

[0010] Preferably, the wear-resistant sleeve and the top sleeve are connected via a fuse.

[0011] Preferably, when the top sleeve is fitted into the wear-resistant sleeve, the first notch and the second notch are spaced 180° apart in the circumferential direction.

[0012] Preferably, the front end of the wear-resistant sleeve is configured as a tapered structure.

[0013] The present application has a simple structure and enables quick and convenient installation on a single side of the structural web or partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural stereogram of a preferred embodiment of the wear-resistant guide device of the present application.

[0015] Figure 2 This application Figure 1 Schematic diagram of the structural disassembly of the embodiment shown.

[0016] Figure 3 This application Figure 1 A cross-sectional view of the structure of the illustrated embodiment.

[0017] Among them, 1-wear-resistant sleeve, 11-first notch, 12-annular groove, 2-wear-resistant sleeve, 21-left wear-resistant sleeve, 22-right wear-resistant sleeve, 3-top sleeve, 31-second notch, 4-fuse. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the implementation of this application will be described in more detail below in conjunction with the drawings in the implementation of this application. In the drawings, the same or similar numbers 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 should not 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 conjunction with the drawings.

[0019] The present application provides a wear-resistant guide device, such as Figure 1-Figure 3 As shown, it mainly includes:

[0020] The wear-resistant sleeve 1 is a cylindrical structure with a first notch 11. The inner wall surface of the wear-resistant sleeve 1 has a plurality of inverted teeth along the axial direction, and the outer wall surface has an annular groove 12;

[0021] The wear-resistant sleeve 2 is divided into a front section and a rear section along the axial direction. The outer wall surface of the front section is provided with a plurality of inverted teeth. The rear section is provided with multiple parts along the circumferential direction. The wear-resistant sleeve 2 is located in the wear-resistant sleeve 1. The front section of the wear-resistant sleeve 2 is connected to the front position of the wear-resistant sleeve 1 through the inverted teeth.

[0022] The top sleeve 3 has an outer wall with inverted teeth, is sleeved outside the rear section of the wear-resistant sleeve 2, and is connected to the rear position of the wear-resistant sleeve 1 through the inverted teeth. The top sleeve 3 has a second notch 31.

[0023] The present application is fixed on the structural web or partition by the annular groove 12 of the wear-resistant sleeve 1. Due to the existence of the first notch 11, the wear-resistant sleeve 1 can be installed on one side of the structural web or partition. According to the installation direction, Figure 3 The right side in the middle is the front and the left side is the rear. The wear-resistant sleeve 2 and the top sleeve 3 are pressed into the rear end of the wear-resistant sleeve 1. The top sleeve 3 will cause the wear-resistant sleeve 1 to expand to achieve a fixed connection with the structural web or partition.

[0024] The wear-resistant sleeve 1 of the present application is made of a material that is wear-resistant, has a certain hardness and good toughness. The first notch opened allows it to shrink or expand in the radial direction, and partially adopts a matching type inverted tooth. The wear-resistant sleeve 2 is made of a material that is high hardness, smooth and wear-resistant, and partially adopts a matching type inverted tooth. The top sleeve 3 is made of a material that is wear-resistant, has a certain hardness and good toughness. The notch opened allows it to shrink or expand in the radial direction, and partially adopts a matching type inverted tooth. The inverted tooth here refers to an annular protrusion with a certain inclination angle. Multiple annular protrusions form a gear-like structure. Figure 3 The inverted teeth ensure non-smooth contact between the wear-resistant sleeve 1 and the wear-resistant sleeve 2, and between the wear-resistant sleeve 1 and the top sleeve 3, and the notches are used to achieve fixed connection between the structures.

[0025] In some alternative embodiments, the rear section of the wear-resistant sleeve 2 is configured as two parts: a left wear-resistant sleeve 21 and a right wear-resistant sleeve 22. The left and right wear-resistant sleeves 21 and 22 are identical in structure, being symmetrical semi-cylindrical in shape. In alternative embodiments, the wear-resistant sleeve 2 can also be configured as more parts, each of which encloses the cylindrical structure.

[0026] In some optional embodiments, the inner wall surface of the wear-resistant sleeve 2 is provided with a step, and the inner diameter at the front position is smaller than the inner diameter at the rear position. Figure 2 and Figure 3 Since the top sleeve 3 needs to be installed between the rear section of the wear-resistant sleeve 2 and the rear part of the wear-resistant sleeve 1, installation space should be reserved in the rear part of the wear-resistant sleeve 1, and the inner diameter of the inner wall surface at the rear position should be enlarged.

[0027] In some optional embodiments, the wear-resistant sleeve 1 and the top sleeve 3 are connected via a fuse 4. Figure 3 The rear end of the top sleeve 3 is set as a pressure plate structure, and the pressure plate structure forms a crimping surface inward to crimp the wear-resistant sleeve 2 into the wear-resistant sleeve 1. At the same time, a hole is opened on the pressure plate structure, and a corresponding safety hole is opened on the wear-resistant sleeve 1, so that the wear-resistant sleeve 1 and the top sleeve can be loosened with the help of the fuse 4.

[0028] In some optional embodiments, when the top sleeve 3 is assembled into the wear-resistant sleeve 1 , the first notch 11 and the second notch 31 are spaced 180° apart in the circumferential direction.

[0029] In some optional embodiments, the front end of the wear-resistant sleeve 1 is configured as a tapered structure, referring to Figure 3 The tapered structure can facilitate pressing the wear-resistant sleeve 1 into the through hole of the structural web or partition.

[0030] The wear-resistant guide device provided by this application supports, guides, and protects transmission components from wear through a wear-resistant sleeve. The wear-resistant sleeve, top sleeve, and fuse enable single-side disassembly and maintenance of the structure. This solves the problems of damage and breakage caused by contact, extrusion, and friction between transmission components and the structure, as well as the inability of conventional wear-resistant wire devices to be disassembled and maintained on one side. The design is simple and effective, with convenient and quick operation and good versatility.

[0031] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wear-resistant guide device, characterized in that: include: The wear-resistant sleeve (1) is a cylindrical structure with a first notch (11), the inner wall surface of the wear-resistant sleeve (1) has a plurality of inverted teeth along the axial direction, and the outer wall surface has an annular groove (12); The wear-resistant sleeve (2) is divided into a front section and a rear section along the axial direction, a plurality of inverted teeth are provided on the outer wall surface of the front section, and the rear section is provided with multiple parts along the circumferential direction. The wear-resistant sleeve (2) is located inside the wear-resistant sleeve (1), and the front section of the wear-resistant sleeve (2) is connected to the front position of the wear-resistant sleeve (1) through the inverted teeth; The top sleeve (3) has an inverted tooth on its outer wall, is sleeved outside the rear section of the wear-resistant sleeve (2), and is connected to the rear position of the wear-resistant sleeve (1) through the inverted tooth. The top sleeve (3) has a second notch (31).

2. The wear-resistant guide device according to claim 1, characterized in that: The rear section of the cylinder of the wear-resistant sleeve (2) is divided into two parts, namely a left wear-resistant sleeve (21) and a right wear-resistant sleeve (22).

3. The wear-resistant guide device according to claim 1, characterized in that: The inner wall surface of the wear-resistant sleeve (2) is provided with steps, and the inner diameter at the front position is smaller than the inner diameter at the rear position.

4. The wear-resistant guide device according to claim 1, characterized in that: The wear-resistant sleeve (1) and the top sleeve (3) are connected via a fuse (4).

5. The wear-resistant guide device according to claim 1, characterized in that: When the top sleeve (3) is assembled into the wear-resistant sleeve (1), the first notch (11) and the second notch (31) are spaced 180 degrees apart in the circumferential direction.

6. The wear-resistant guide device according to claim 1, characterized in that: The front end of the wear-resistant sleeve (1) is configured as a tapered structure.

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