不同变速箱油对WS2001同步器性能的影响

利用自行研制的WS2001变速箱同步器油品评定台架研究了GL-5 75W/90重负荷齿轮油、重负荷多效齿轮油75W/90，80W/90，80W/140，柴油机油CF-4 15W/40和SJ/CD 15W/40等油品对WS2001惯性锁环式同步器性能的影响。试验结果表明：不同润滑油的使用寿命不同，导致同步器失效的形式不同。CF-4 15W/40和SJ/CD 15W/40汽柴油机通用机油虽能保证较好的运行稳定性，但同步器试验件磨损严重，易产生磨损失效；GL-5 75W/90、75W/90重负荷多效齿轮油、80W/90重负荷多效齿轮油、80W/140重负荷多效齿轮油等在前期具有较好的运行稳定性，氧化衰变后易发生同步器打齿，导致打齿失效。变速箱油的黏度、抗剪切性能和氧化安定性对同步器运行性能具有一定影响，选用和研发新型变速箱油应予以考虑。

INFLUENCES OF DIFFERENT TRANSMISSION OILS ON PERFORMANCE OF WS2001 SYNCHRONIZER

Based on the custom-built WS2001 synchronous test bench, the influences of synchronizer oils on the WS2001 synchronizer performance was researched with six kinds of oils, such as GL-5 75W/90, heavy load and multifunctional gear oil 75W/90, 80W/90, 80W/140, CF-4 15W/40 and SJ/CD 15W/40. The experimental results indicated that the different lubricating oils had different service life and failure mode when they were used as the synchronizer oils for WS2001 synchronizer. The engine oils, such as CF-4 15W/40 and SJ/CD 15W/40 could ensure a good running stability, but the synchronizer test parts were easy to fail for wear and tear. Heavy load multifunctional gear oils had a good running stability in the early, but a rough stability in late running for oil oxidation. So the synchronizer test parts were easy to impact failure for oil oxidation. The viscosity, shear resistance and oxidation stability of transmission oils also had a certain influence on the performance of the synchronizer, and these influences should be considered when selecting and developing new type gearbox oils.