基于激光测距的复合齿轮轴同轴度测量方法研究

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中图分类号：TN249 文献标志码：A 文章编号：1671-5276（2025）05-0040-06

Research on Coaxiality Measurement System of Compound Gear Shaft Based on Laser Ranging

FANG Yuanyuan，LU Yonghua，LIU Heng，ZHANG Tianyi

CollegeofMechanicaland Electrical Enginering，Nanjing Universityof Aeronauticsand Astronautics，Nanjing 21oo16，China

Abstract：Anon-coontact measurement method based on laser ranging isproposed forthe coaxiality measurementof internal spline一bevelgear.Laserdisplacementsensorand spectralconfocal sensorareappliedtoobtainthedata pointsof diferent sections of the measured parts，thecenter point coordinates ofeach measured sectionarecalculated acording to theleastsquare method，andfited togainreferenceaxis，andthereference axis equationof theinternalsplineand the center pointcoordinatesof thebevelgeararecombined forcalculationabtaining thecoaxial erorofthebevel gearrelative to theinternal spline.In the system accuracy verification experiment，10 groups of measurement are conducted for the same internal spline-bevel gear part，with the uncertainty of the measurement system as 0.028mm and the repeated measurement error less than 0.085mm

Keywords：laser displacement sensor;spectral confocal sensor;inner hole-outer shaft parts;least square circle method; coaxiality error

0 引言

与孔之间的同轴度误差，具有测量的局限性[4]

内花键一伞齿轮复合齿轮轴是一种复杂的内孔一外轴类零件，该零件的同轴度误差会影响到传动系统的稳定性和可靠性。（剩余6973字）