Multi-type aircraft nose landing gear clamping groove nut disassembling and assembling tool

By designing tools for disassembling and assembling nose landing gear nut slots on various aircraft, the problems of damage and inadequate tightening during nut disassembly and installation were solved, achieving efficient and damage-free nut disassembly and tightening, and improving work efficiency.

CN223493120UActive Publication Date: 2025-10-31DALIAN CHANGFENG IND CORP
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Patent Information

Application Number
CN202422881561.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-10-31
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

In the existing technology, the disassembly and installation methods of aircraft nose landing gear slot nuts have problems such as damaged nuts, inadequate tightening, high rework rate, and long working time, which affect product quality.

Method used

Design a tool for removing and installing nose landing gear slot nuts for various types of aircraft. It is made of 45# steel and has a strip-shaped plate structure. The inner diameter of the ring structure matches the outer diameter of the slot nut. The inner wall of the ring structure has protrusions evenly distributed around the circumference. The position, number and size of the protrusions match the slot nut. The handheld part is designed according to ergonomics and the tightening torque requirements of the nut.

Benefits of technology

It enables nut disassembly without damage and more secure installation, reduces rework, and improves disassembly and installation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a dismounting tool for clamping groove nuts of nose landing gears of various aircrafts, which belongs to the technical field of aviation equipment maintenance, the whole dismounting tool is in a strip-shaped plate shape, the end part of the dismounting tool is annular, the other parts of the dismounting tool are handheld parts, the inner diameter of the annular structure is matched with the outer diameter of the clamping groove nuts, and a plurality of bulges are uniformly distributed on the inner wall of the annular structure along the circumferential direction and are matched with the clamping groove nuts. The clamping groove nut is sleeved with the annular structure, and the clamping groove nut can be disassembled and assembled by pulling the handheld part. The nut is not damaged when disassembled, the nut is installed more firmly, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of aviation equipment maintenance technology and relates to a tool for disassembling and assembling nose landing gear slot nuts for various types of aircraft. Background Technology

[0002] The outer wall of the nose landing gear nut has multiple slots evenly distributed circumferentially. Different aircraft models have different outer diameters for the nut slots, and the size and number of slots also vary. During the repair of the nose landing gear strut, the nut is typically removed and installed by placing the edge of a chisel into the nut's slot and striking it with a hammer. This process frequently results in damaged nut slots or inadequate tightening, requiring rework. This method of removing and installing nuts leads to a high rework rate, long working time, and the risk of inadequate tightening and unreliable installation, ultimately affecting product quality. Utility Model Content

[0003] To enable high-quality and efficient disassembly and installation of nose landing gear strut nut, this utility model provides a tool for disassembling and assembling nose landing gear nut for various types of aircraft.

[0004] The present invention adopts the following technical solution:

[0005] A tool for removing and installing slot nuts on the nose landing gear of various types of aircraft is disclosed. The tool is a strip-shaped plate with a ring-shaped end and a hand-held part. The inner diameter of the ring structure matches the outer diameter of the slot nut. Multiple protrusions are evenly distributed circumferentially on the inner wall of the ring structure. The position, number, and size of the protrusions match the position, number, and size of the slots on the slot nut. The length and width of the hand-held part are designed according to ergonomics and the tightening torque requirements of the nut.

[0006] Furthermore, the disassembly and assembly tools are designed in various sizes, and the inner diameter of the annular structure, as well as the position, number, and size of the protrusions, are set according to the compatible slot nut.

[0007] Furthermore, the disassembly and assembly tools are made of 45# steel.

[0008] The beneficial effects of this utility model are as follows:

[0009] (1) The nut was undamaged when it was removed.

[0010] (2) When installing the nut, the nut is more secure.

[0011] (3) The time for disassembling and installing nuts is shorter, there is no rework, and the efficiency is higher. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention, wherein (a) is the front view and (b) is the top view. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments that are improved or adjusted by those skilled in the art based on the embodiments of this utility model are within the protection scope of this utility model.

[0014] By consulting the part drawings of the nose landing gear strut nut of a certain type of aircraft, the Russian parts catalog, and by measuring the outer diameter of the slot nut, the angle and depth of the slot from the center point, and based on ergonomics and the tightening torque requirements of the nut, this embodiment provides a tool for disassembling and assembling nose landing gear slot nuts of various types of aircraft. 45# steel is selected as the raw material, and 45 steel is heat-treated to increase its strength.

[0015] like Figure 1 As shown, the disassembly and assembly tool is a strip-shaped plate with a ring-shaped end and the rest being a handheld part. The inner diameter of the ring structure matches the outer diameter of the slot nut. Multiple protrusions are evenly distributed along the circumference of the inner wall of the ring structure. The position, number, and size of the protrusions match the position, number, and size of the slots on the matching slot nut. The length and width of the handheld part are designed according to ergonomics and the tightening torque requirements of the nut.

[0016] When using the tool, fit the ring-shaped structure onto the slot nut, allowing its protrusion to embed into the slot. Then, by turning the handle, the slot nut can be quickly installed or removed.

[0017] The above-described embodiments are merely illustrative of the implementation of this utility model, but should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A tool for removing and installing nose landing gear retainer nuts on various types of aircraft, characterized in that, The disassembly and assembly tool is a strip-shaped plate with a ring-shaped end and the rest being a handheld part. The inner diameter of the ring structure matches the outer diameter of the slot nut. Multiple protrusions are evenly distributed along the circumference of the inner wall of the ring structure. The position, number, and size of the protrusions match the position, number, and size of the slots on the slot nut.

2. The tool for disassembling and assembling the nose landing gear slot nut of various types of aircraft according to claim 1, characterized in that, The length and width of the handheld part of the disassembly and assembly tool are designed according to ergonomics and the torque requirements for tightening nuts.

3. The tool for disassembling and assembling nose landing gear slot nuts for various types of aircraft according to claim 1, characterized in that, The disassembly and assembly tools are designed in various sizes, and the inner diameter of the annular structure, as well as the position, number, and size of the protrusions, are set according to the compatible slot nut.

4. The tool for disassembling and assembling nose landing gear slot nuts for various aircraft as described in claim 1, characterized in that, The disassembly and assembly tools are made of 45# steel.