Dynamic load simulation test method of airplane wheel bearing

A simulation test, dynamic load technology, applied in the direction of mechanical bearing testing, etc., can solve problems such as triggering failures

Inactive Publication Date: 2015-02-11
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] In order to overcome the deficiencies in the prior art that cannot simulate the rotation and stress conditions of the wheel bearing when the aircraft is taxiing a

Method used

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  • Dynamic load simulation test method of airplane wheel bearing
  • Dynamic load simulation test method of airplane wheel bearing
  • Dynamic load simulation test method of airplane wheel bearing

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Embodiment Construction

[0092] This embodiment is a dynamic load test of a certain type of aircraft wheel bearing, and the testing machine used is an aircraft wheel bearing load impact testing machine. The content of the dynamic load test includes whether the test bearing has cracks and deformation under rated load and speed, whether there is fatigue spalling or spalling depth, area size, and the temperature change curve of the inner ring of the test bearing under the action of load and rotating speed, Changes in clearance before and after the test.

[0093] The aircraft wheel bearing load impact testing machine includes a loading system and a driving system.

[0094] The loading system is a vertical hydraulic loading method, which is disclosed in the invention of 2014102708950. The loading system includes a base plate 5, a rubber wheel 6, a U-shaped loading head 7, a loading shaft 8, a brake 9, a movable plate 10, a load sensor 11, a column 12, a fixed plate 13, a hydraulic cylinder 14, a coupling ...

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Abstract

The invention relates to a dynamic load simulation test method of an airplane wheel bearing. A test machine comprises a dragging system and a loading system, wherein a tested bearing rotates through the dragging system according to the stipulated rotation speed, the loading system is used for providing a test load to the tested bearing, the tested bearing is enabled to simulate the use working conditions such as the stress working condition and test condition of the airplane wheel bearing in the flying, high-speed sliding, landing impact moment, laterodeviation landing and stopping processes of an airplane, the working condition of the airplane wheel bearing can be comprehensively reflected, the strength and service life can be accurately evaluated, the credible test evidence is provided for researching the airplane wheel bearing at a higher rotation speed and heavier load, and the research period can be effectively shortened.

Description

technical field [0001] The invention relates to an aircraft wheel bearing load testing machine, in particular to a test method for simulating the load condition of the aircraft wheel bearing when the aircraft is gliding at high speed. Background technique [0002] With the development of aircraft, the speed and weight of the aircraft are gradually increasing during take-off and landing, and the safety problems during take-off and landing are becoming more and more prominent. The requirements for the performance and reliability of the wheel bearing are also getting higher and higher, which is related to the safety of the aircraft. Return flight, sustained combat capability and ability to adapt to airports. [0003] Wheel bearings are not only used to support the wheel, guide the direction of rotation of the wheel, reduce friction during rotation, and bear various loads between the wheel and the axle. Moreover, bearings have a great influence on the working performance, life,...

Claims

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Application Information

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IPC IPC(8): G01M13/04
Inventor 邓伟林张炜
Owner XIAN AVIATION BRAKE TECH
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