| WANG Li-li,HE Meng-xue,ZHANG Wei,GE Xue,DUAN Jing-dong.Thermal Effect Analysis of Surface Micro-textured Elliptical Bearing[J],51(8):291-297 |
| Thermal Effect Analysis of Surface Micro-textured Elliptical Bearing |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.08.025 |
| KeyWord:elliptical bearing micro-texture thermal effect micro-groove width axial distribution rate of micro-groove experimental study |
| Author | Institution |
| WANG Li-li |
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Shandong Qingdao , China |
| HE Meng-xue |
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Shandong Qingdao , China |
| ZHANG Wei |
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Shandong Qingdao , China |
| GE Xue |
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Shandong Qingdao , China |
| DUAN Jing-dong |
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Shandong Qingdao , China |
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| Abstract: |
| This study aims to improve the lubrication performance of friction pair, and study the influence of different surface micro-texture parameters on the thermal effect of elliptical bearings. At the same time, experiments is used to further illustrate the anti-friction mechanism of the micro-texture. A simulation model of surface micro-textured elliptical bearings by Gambit was established, viscosity was defined by writing UDF program, and wear experiments by surface-to-surface contact friction were taken. The thermal effect of elliptical bearings under different micro-groove widths and axial distribution rate of micro-grooves was analyzed by theory and experiment. The results show that surface micro-texture can improve effectively the tribological properties of friction pair. The groove-shaped micro-texture has the lower temperature than smooth elliptical bearing, the main bearing area has a strip-shaped low temperature area in the axial direction, and the appearance position is consistent with the groove distribution position. With the increase of the axial distribution rate of micro-groove, the cooling effect of micro-groove is enhanced, bearing capacity first increases and then decreases, friction force first decreases and then increases, end discharge first decreases and then increases, and the axial distribution rate of micro-grooves is 0.6. As the micro-groove width increases, the bearing capacity first increases and then decreases, the friction force of the bearing first decreases and then increases, the elliptical bearing has better lubrication performance when the micro-groove width is between 0.6 and 0.8 mm. Both theoretical analysis and experimental research show that the friction force of surface micro-textured elliptical bearing first decreases and then increases with the increase of micro-groove width. Appropriate micro-texture parameters can maximize its anti-friction effect, the purpose of improving bearing lubrication performance and reducing bearing temperature rise can be achieved. |
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