title: [Study on no-load running-in wear of power-shift steering transmission based on oil spectrum analysis].
abstract: The running-in process wear rule of power-shift steering transmission can be studied conveniently and timely by using spectral analysis of oil. The configuration characteristic and the running-in mechanism of power-shift steering transmission were introduced firstly in the present paper. According to the discussion of running-in wear factors such as load, rotation speed, time, oil temperature, shifting number and original concentration of running-in oil, the wear calculation mode was established. The no-load running-in experiments of two power-shift steering transmissions were done, with different rotation speed and time. Based on the spectrum analysis of experiment result, the function relation between running-in wear and the oil original concentration and running-in speed was obtained, so the no-load running-in process wear calculation mode of power-shift steering transmission was confirmed. Through the experiment of other two power-shift steering transmissions, it was validated that the Cu element concentration can be calculated accurately by the wear calculation mode, which included the parameters such as oil original concentration, running-in speed, running-in time and gear shift alternate time. So the reference to evaluate the running-in quality and to constitute running-in regulations was gained.
authors.affiliation: School of Mechanical and Vehicle Engineering, Beijing Institute of Technology, Beijing 100081, China. lheyan@sohu.com
authors.forename: He-yan
authors.initials: HY
authors.lastname: Li
authors.forename: Li-yong
authors.initials: LY
authors.lastname: Wang
authors.forename: Biao
authors.initials: B
authors.lastname: Ma
authors.forename: Chang-song
authors.initials: CS
authors.lastname: Zheng
authors.forename: Man
authors.initials: M
authors.lastname: Chen