Beihang University

Jiadong Sheng

Yan Cheng

Wei Guo

Xiangyang Xu

Peng Dong

Yanfang Liu

Shuhan Wang

Shumiao Zuo

Peter Tenberge

A device for testing a needle roller bearing of a planet gear set consists of two identical helical planet gear sets, a piston, an end cover, a spindle, and can simulate the actual operating condition of a needle roller bearing of the planet gear set; the rotating speed difference between an inner raceway and an outer raceway of the needle roller bearing is determined by adjusting the rotating speed of a sun gear and a planet carrier; the load on the needle roller bearing includes a centrifugal load and a radial load, and the centrifugal acceleration and the centrifugal load are determined by adjusting the rotating speed of the planet carrier; a method of determining the radial load by adjusting the hydraulic pressure difference of hydraulic chambers at both ends of the piston, generating a tangential force to load the planet gear, and balancing the radial load of the bearing.

Device for testing needle roller bearing of planet gear set and method thereof

Growing community of inventors

Beijing, China

Jiadong Sheng