A novel tribometer for the measurement of friction torque in microball bearings

A novel tribometer for the measurement of friction torque in microball bearings
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一种用于测量微型球轴承摩擦扭矩的新型摩擦计

DOI:
10.1016/j.triboint.2017.04.053
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发表时间:
2017-10
影响因子:
6.2
通讯作者:
Song Xintao
Song Xintao
中科院分区:
工程技术1区
文献类型:
--
作者:
Yang Weixu;Wang Xiaoli;Li Hanqing;Song Xintao

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介绍了一种新型的硅基微球轴承摩擦力矩测试仪。首先,在接触力学分析的基础上,提出了一种新型微球轴承结构。采用晕蚀法和中间层粘结法制备了轴承,并研制了摩擦力矩测试平台。结果表明,微球与滚道间的微尺度滚动摩擦力矩与载荷呈次线性关系,与宏观滚动情况不同,在相同载荷下,Si3N4球轴承产生的摩擦力矩大于440C球轴承。
A novel tribometer for the measurement of friction torque in silicon-based microball bearings is demonstrated. First, a new configuration of microball bearing is proposed based on the contact mechanics analysis. The bearing is fabricated using halo etch and intermediate layer bond processing methods and the friction torque test platform is then developed. It is found that the microscale rolling friction torque between microball and raceway exhibits a sublinear relationship with load, which is different from the case of macroscale rolling, and the Si3N4ball bearings generate larger friction torque than 440C ball bearings under the same load.
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