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1.河南科技大学 机电工程学院, 河南 洛阳 471003
2.河南科技大学 机械装备先进制造河南省协同创新中心, 河南 洛阳 471003
汤义博(1997— ),男,河南漯河人,硕士研究生;主要研究方向为轴承设计;1362984581@qq.com。
邱明(1969— ),女,江苏无锡人,教授,博士研究生导师;主要研究方向为轴承设计及性能评价;qiuming69@126.com。
纸质出版日期:2023-10-15,
收稿日期:2022-08-15,
修回日期:2022-08-26,
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汤义博,邱明,杨传猛等.不对称轮毂轴承主承载列结构参数对摩擦力矩的影响[J].机械传动,2023,47(10):96-103.
Tang Yibo,Qiu Ming,Yang Chuanmeng,et al.Influence of Structural Parameters of Main Load Train of Asymmetric Hub Bearings on Friction Torque[J].Journal of Mechanical Transmission,2023,47(10):96-103.
汤义博,邱明,杨传猛等.不对称轮毂轴承主承载列结构参数对摩擦力矩的影响[J].机械传动,2023,47(10):96-103. DOI: 10.16578/j.issn.1004.2539.2023.10.014.
Tang Yibo,Qiu Ming,Yang Chuanmeng,et al.Influence of Structural Parameters of Main Load Train of Asymmetric Hub Bearings on Friction Torque[J].Journal of Mechanical Transmission,2023,47(10):96-103. DOI: 10.16578/j.issn.1004.2539.2023.10.014.
针对不对称轮毂轴承摩擦引起的能耗问题,为更加准确分析结构参数对摩擦力矩的影响,采用坐标转换法,建立了考虑预紧力的不对称轮毂轴承摩擦力矩改进分析模型,并进行了试验验证。假设不对称轮毂轴承右列结构参数不变,研究左列(主承载列)结构参数对轴承摩擦力矩的影响。结果表明,存在一个最佳倾覆力矩,使不对称轮毂轴承摩擦力矩最小。随着中心距的增大,当倾覆力矩小于最佳倾覆力矩,不对称轮毂轴承摩擦力矩增大;当倾覆力矩大于最佳倾覆力矩,不对称轮毂轴承摩擦力矩减小。适当增大左列沟曲率半径系数与左列钢球数,不对称轮毂轴承摩擦力矩减小。增大不对称轮毂轴承左列节圆直径与左列钢球直径,不对称轮毂轴承摩擦力矩增大。在倾覆力矩
M
1
=30 000 N·mm时,不对称轮毂轴承左列结构参数对摩擦力矩的影响权重为:左列沟曲率半径系数
>
左列钢球数
>
左列节圆直径
>
左列钢球直径
>
中心距。
Aiming at the problem of energy consumption caused by the asymmetric hub bearing friction and in order to more accurately analyze the influence of structural parameters on the friction torque
an improved analysis model of friction torque of asymmetric hub bearing considering pretightening force is established and verified by experiments
by using the coordinate transformation method. Assuming that the structural parameters of the right row of asymmetric hub bearings remain unchanged
the influence of the structural parameters of the left row (main bearing row) on the bearing friction torque is studied. The results show that there is an optimal overturning moment to minimize the friction moment of asymmetric hub bearings. With the increase of center distance
when the overturning moment is less than the optimal overturning moment
the friction moment of asymmetric hub bearings increases
and when the overturning moment is greater than the optimal overturning moment
the friction torque of asymmetrical hub bearings decreases. The friction torque of asymmetrical hub bearings decreases when the curvature radius coefficient of left row groove and the number of steel balls of left row are appropriately increased. The friction torque of asymmetrical hub bearings increases when the diameter of the left row of pitch circle and the diameter of the left row of steel ball of asymmetrical hub bearings increase. When overturning moment
M
1
is equal to 30 000 N·mm
the influence weights of left row structural parameters of asymmetric hub bearings on friction torque are as follows: curvature radius coefficient of the left row groove is greater than the number of steel balls in the left row; the number of steel balls in the left row is greater than the diameter of the pitch circle in the left row; the diameter of the pitch circle in the left row is greater than the diameter of steel balls in left row; the diameter of steel balls in left row is greater than the center distance.
不对称轮毂轴承预紧力摩擦力矩主承载列结构参数
Asymmetrical hub bearingPretightening forceFriction torqueMain load trainStructure parameter
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