Misaligned spline vibration wear contrast experimental device

Abstract

The invention relates to a misaligned spline vibration wear experimental device and belongs to the aeronautics and astronautics vibration field. The misaligned spline vibration wear experimental device is characterized in that the misaligned spline vibration wear experimental device is composed of temperature sensors, constant-temperature covers, ball bearings, vibration displacement sensors, wheel discs, a rotor 1, bearing seats, grease collecting covers, spline jackets, splines, a rotor 2, double-row bearings, a motor, a frequency converter, a synchronizing belt, a synchronizing wheel, a driven wheel, a preamplifier, a signal acquisition device, an industrial personal computer, a rotor 3, a rotation speed sensor, electric heating wires, bearing elevation adjusting devices, an integrated bearing seat, a basic platform, infrared thermometers, flexible couplings and magnetic powder brakes. The misaligned spline vibration wear experimental device of the invention has a spline comprehensive condition contrast test function, a spline lubricating oil temperature and temperature rise research function, a spline / bearing misalignment research function, a spline engaging torque loading function and a comprehensive data online monitoring function. The misaligned spline vibration wear experimental device is advantageous in multiple experiment functions, strong comparability, excellent repeatability, stable operation, convenience in assembly and disassembly.

Description

technical field [0001] The invention belongs to the field of aerospace vibration, and relates to a vibration and wear comparison experimenter for misaligned splines. technical background [0002] Couplings are important connecting parts of rotating machinery. In aircrafts, in order to reduce weight and improve connection reliability, spline couplings with simple structure and easy installation are often used to connect gearboxes, pumps, generators, engines, etc., to achieve Torque transmission; for example, each American A-4 Skyhawk attack aircraft has 174 spline connections. So far, there has not been any alternative that is superior to splines that has been so recognized by military industry standards. [0003] According to the data survey of the U.S. Navy aircraft maintenance database, 40% of fixed-wing aircraft and 70% of rotary-wing aircraft have spline connection problems, mainly due to misalignment vibration wear. Although the spline installation standard requires g...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the lack of spline research experimenters and the existing problems in the function, structure and practicality of the existing experimenters, the present invention proposes a misaligned spline vibration and wear comparison experimenter

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