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Guide sleeve for installing aircraft braking wheel

A technology of guide sleeves and wheels, applied in the field of guide sleeves, can solve the problems of broken parts, inconsistencies, lack of axes of machine wheel assemblies and brake devices, etc., and achieve the effects of preventing bumps, convenient operation, and convenient ground operations

Inactive Publication Date: 2017-03-22
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, there is no relevant tooling or technology in the existing patented technology to solve the solution to the problem that the axis of the wheel assembly and the brake device are inconsistent during the installation process, resulting in the failure of the parts.

Method used

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  • Guide sleeve for installing aircraft braking wheel
  • Guide sleeve for installing aircraft braking wheel
  • Guide sleeve for installing aircraft braking wheel

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment is a guide sleeve for installing a brake wheel of a certain type of aircraft.

[0025] The guide sleeve 6 is cylindrical. The cylinder body of the guide sleeve is composed of an equal-diameter section and a cone section. The cylinder body of the equal-diameter section is located at one end of the guide sleeve, and its outer circular surface matches the inner circular surface of the bearing outer ring on the wheel assembly with a small clearance. There are two planes symmetrically distributed on the outer circle of the section, which can reduce the sliding friction force by reducing the contact area between the equal-diameter cylinder and the outer ring of the bearing outer ring of the wheel assembly, so that the guide sleeve and the wheel assembly are easy to move during installation and disassembly. , the plane can also play a role in reducing weight. The two radially protruding bosses on the inner surface cooperate with the outer surface of the landin...

Embodiment 2

[0029] This embodiment is a guide sleeve for installing a brake wheel of a certain type of aircraft. The guide sleeve of this embodiment has the same structure as the guide sleeve of Embodiment 1, only the dimensions are adjusted according to the shaft diameter of the landing gear and the size of the wheels, and high-strength steel materials are selected for use.

[0030] In this embodiment, the installation guide sleeve is selected from 45 steel, with a total weight of 8kg, and the surface treatment is bluish. The guide sleeve 6 has a length of 380mm and is composed of an equal-diameter section and a cone-section cylinder. The gap between the inner circular surfaces of the outer ring is 0.15mm, and two symmetrical planes are distributed on the outer circular surface. The planes are 245mm long, 35mm wide and 2mm deep. The inner circular surface of the equal-diameter section cylinder is 5mm and 150mm away from the end surface of the equal-diameter section, and each has a boss ...

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Abstract

The invention provides a guide sleeve for installing an aircraft braking wheel. An equal-diameter section cylinder of the guide sleeve is located at one end of the guide sleeve. The outer circular surface of the equal-diameter section cylinder is in clearance fit with the inner circular face of an outer ring of a bearing of a wheel assembly. Two planes are symmetrically distributed on the outer circular face of the equal-diameter section. Two bosses, protruding in the radial direction, on the inner circular face are in small clearance fit with the outer circular face of an undercarriage shaft, so that the contact area between the inner circular face of the guide sleeve and the outer circular face of the undercarriage shaft is reduced, and the sliding friction force is reduced. A conical section is located at the other end of the guide sleeve. The inner diameter and the outer diameter of the big end of a conical section cylinder are equal to the inner diameter and the outer diameter of the equal-diameter section cylinder. Two square through holes are symmetrically distributed in a cylinder at the junction of the equal-diameter section and the conical section. By the adoption of the guide sleeve, in the wheel assembly installation process, the wheel assembly can be supported and prevented from being inclining, the axis is identical to the axial direction of a braking device, the damage rate, caused by collision of a sealing ring and a steel pressure-bearing disc, of the sealing ring part is decreased, other collision problems in the installation process are reduced, and inconvenience in the installation process is avoided.

Description

technical field [0001] The invention relates to the field of aircraft brake wheels, in particular to a guide sleeve for installing aircraft brake wheels. Background technique [0002] The aircraft brake wheel comprises a wheel assembly and a brake device, and the wheel assembly and the brake device are mounted on the main landing gear shaft of the aircraft. When installing the brake wheel, first install the brake device on the landing gear shaft of the aircraft, then insert the oil deflector ring and the bearing inner ring, and finally install the wheel assembly. In the prior art, when the wheel assembly is installed, the wheel assembly is mainly lifted by manpower or small lifting equipment. When the axis of the wheel assembly is basically coincident with the axis of the landing gear, the keyway on the outer circumference of the moving plate assembly in the brake device will Align the guide rail in the cavity of the wheel assembly, and push the wheel assembly horizontally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/42B23P19/10
CPCB64C25/42B23P19/10
Inventor 张万顺张旭邓倩李柯润
Owner XIAN AVIATION BRAKE TECH
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