Characteristics of Left-Right Spiral Hollow Cylindrical Roller

Liming Lu,Qiping Chen,Yujiang Qin

(College of Mechanical and Electrical Engineering, East China Jiaotong University, Nanchang 330013, China)



Abstract:

Based on new rolling-sliding compound bearings, the wear between the one-way spiral hollow cylindrical roller and the ribs of the inner and outer ring of rolling-sliding compound bearings is reduced by innovational structural design. A new left-right spiral hollow cylindrical roller is proposed to replace the one-way spiral hollow cylindrical roller. The finite element analysis models of ordinary cylindrical rollers, one-way spiral hollow cylindrical rollers and left-right spiral hollow cylindrical rollers are respectively established by ABAQUS. The axial displacement of their center mass and the stress distribution of left-right spiral hollow cylindrical rollers are compared and analyzed. Theoretical study results show that this new left-right spiral hollow cylindrical roller not only inherits the advantages of one-way spiral hollow cylindrical rollers, but also avoids the axial offset and the serious wear of the one-way spiral hollow cylindrical roller. And the theory research conclusion is verified by the experiment. The left-right spiral hollow cylindrical roller has the advantages to overcome boundary stress concentration like logarithmic convex roller. The rolling-sliding compound bearings equipped with the new rollers can be better to adapt to the impact of vibration load.

Key words:  left-right spiral hollow cylindrical roller  finite element analysis  displacement  stress

DOI£º10.11916/j.issn.1005-9113.2015.02.011

Clc Number:TH132

Fund: