Drive unit for rotating outer ring and fixing inner ring of airplane wheel bearing

A technology of bearing outer ring and driving device, which is applied in the direction of mechanical bearing testing, etc., can solve the problems that cannot meet the test requirements of aircraft wheel bearings, and achieve the effects of shortening the development cycle, bearing large loads, and high rotation speed

Active Publication Date: 2014-10-22
XIAN AVIATION BRAKE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In order to solve the problem that the existing technology can only simply realize the driving of the outer ring rotation of the rolling bearing, but cannot meet the test requirements of the aircraft wheel bearing, the present invention proposes a method to make the outer ring of the aircraft wheel bearing rotate and the inner ring is fixed. drive

Method used

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  • Drive unit for rotating outer ring and fixing inner ring of airplane wheel bearing
  • Drive unit for rotating outer ring and fixing inner ring of airplane wheel bearing
  • Drive unit for rotating outer ring and fixing inner ring of airplane wheel bearing

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Embodiment Construction

[0034] This embodiment is a driving device used in a certain aircraft wheel bearing load impact testing machine, and the driving device passively drives the wheel bearing by means of counter-rolling rotation. This embodiment includes a motor 1, a clutch 2, a bearing housing 3, a drum 4, an axle 5, a rubber wheel 6, a brake 9 and a coupling 14. The motor 1 adopts a three-phase AC variable frequency speed regulation asynchronous motor.

[0035] In this embodiment, the clutch 2 is installed on the output shaft of the motor 1 . The wheel shaft 5 is installed on two bearing blocks, and one end of the wheel shaft is connected with the flange at one end of the clutch 2 through a coupling 14 . The drum 4 is mounted on the axle 5 through a key and is located between the two bearing seats. The outer peripheral surface of the drum 4 is in friction fit with the peripheral surface of a rubber wheel 6 mounted on the loading device. The rubber wheel 6 is sleeved on the outer ring of the tes...

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Abstract

The invention relates to a drive unit for rotating an outer ring and fixing an inner ring of an airplane wheel bearing. The drive unit is composed of a motor, a clutch, bearing seats, a drum wheel, a wheel axle and a coupler. The wheel axle is installed at the two bearing seats; and one end of the wheel axle is connected with a flange arranged at one end of the clutch by the coupler. The drum wheel is installed at the wheel axle by a key and is between the two bearing seats; and the external circumferential surface of the drum wheel rubs against the circumferential surface of a rubber wheel installed at a loading device in a cooperative mode. The rubber wheel is sleeved at the outer ring of the tested bearing. A brake plate is fixed at one end surface of the rubber wheel by a flange; and the braking disc of the brake plate is arranged at a braking clamping plate of a brake. The upper end of the brake is fixed at the lower surface of a loading substrate of the loading device. According to the invention, the working situation of the wheel bearing of the airplane in a sliding state can be simulated; and the bearing load is large and the rotating speed is fast. Therefore, the provided drive unit can be applied to various bearing testing machines.

Description

technical field [0001] The invention relates to a driving device for fixing the rotating inner ring of the outer ring of the aircraft wheel bearing, in particular to a driving device for fixing the rotating inner ring of the outer ring of the 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 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04
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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