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A loading device for a bearing testing machine

A loading device and bearing test technology, which is applied in the direction of mechanical bearing test, measuring device, impact test, etc., can solve the problems that the loaded load value cannot meet the requirements of the wheel bearing test, high test cost, poor safety, etc., and shorten the development cycle Effect

Active Publication Date: 2016-06-01
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In order to overcome the shortcomings of the loading load value existing in the prior art that cannot meet the test requirements of the wheel bearing, as well as the long test period, poor safety, and high test cost, the present invention proposes a loading device for a bearing testing machine

Method used

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  • A loading device for a bearing testing machine
  • A loading device for a bearing testing machine
  • A loading device for a bearing testing machine

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Embodiment Construction

[0048] This embodiment is a loading device used for a certain aircraft wheel bearing testing machine.

[0049] The loading device is a vertical hydraulic loading method.

[0050] The loading device is mainly composed of a hydraulic cylinder 1, a fixed plate 2, a load sensor 3, a column 4, a movable plate 5, a rubber wheel 6, a loading head 7, a loading shaft 8, a brake 9, a force platform 10, a shaft sleeve 19 and a brake disc 20 compositions. The loading device is fixed on the upper surface of the ground plate 11 through four uprights 4 . And four columns 4 are used as guide rails for the movable plate 5 to move up and down, and can bear the load from the loading head at the same time.

[0051] In the loading device, the fixed plate 2 is fixedly installed on the top end surfaces of the four columns 4 . The hydraulic cylinder 1 is installed on the geometric center of the upper surface of the fixed plate 2 , and the telescopic rod of the hydraulic cylinder 1 passes through t...

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Abstract

The invention provides a loading device for a bearing tester. A movable place moves upwards and downwards with a stand column as a guide rail, and a loading base plate of a loading head is arranged in a guide rail groove in the lower surface of the movable plate. A test bearing is arranged on a loading shaft. A rubber wheel is arranged on the periphery of the test bearing in a sleeved mode. When the test bearing is tested, the test bearing is a group of machine wheel bearings including two sets of the machine wheel bearings which are arranged in the rubber wheel symmetrically. When the test bearing is tested, the stress working condition of the machine wheel bearings is simulated in the stop state of an airplane. The rubber wheel with the test bearing is arranged on the loading head of a loading system, a drum wheel is loaded through the rubber wheel, and the radial loading test of the bearing and the laterodeviation test loading test of the machine wheel bearings of the airplane are achieved. By means of the loading device for the bearing tester, large load loading can be achieved at a high rotation speed, the stress conditions of the machine wheel bearings in the processes of taking-off, high-speed gliding, instant impact at landing, laterodeviation landing and stop of the airplane can be simulated, the strength and service life of the machine wheel bearings can be assessed precisely, the reliable test basis is provided, and the development time can be shortened effectively.

Description

technical field [0001] The invention relates to a loading device of a bearing testing machine, in particular to a loading device for simulating the actual stress working condition of an aircraft wheel bearing. 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, various economic indicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04G01M7/08
Inventor 邓伟林张炜姚剑峰杨薇程卫平肖继平
Owner XIAN AVIATION BRAKE TECH
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