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轴向柱塞泵中滑靴副的摩擦磨损性能研究
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山西省重点研发计划(指南)项目(201803D421041)


Study on Friction and Wear Performance of Slipper Pair in Axial Piston Pump
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    摘要:

    采用摩擦磨损试验机和白光干涉仪,考察不同载荷和转速下工具钢球与304钢组成的滑靴副的摩擦因数、磨损体积和磨痕形貌,从而找到最优工况以提高滑靴副的寿命以及工作效率。通过极差和方差分析发现:载荷、转速和半径对摩擦因数的影响都比较显著,并且载荷为100 N、转速为50 r/min和半径为20 mm时的摩擦因数达到最小值。基于正交试验的最优结果,开展控制变量试验。结果表明:随载荷的增大,磨损体积先增大后减小,在50 N时磨损体积最小,为91.468×106 μm3;磨损体积随转速的增大而逐渐增大,且在50 r/min时磨损体积最小,为926.613×106 μm3;随着载荷和转速的变化,磨痕的深度和宽度也会变化,其中载荷对磨痕宽度的影响显著,从50 N到150 N时,磨痕的宽度增大2.2倍、深度增大1.9倍;转速对磨痕深度的影响显著,从50 r/min到150 r/min时,磨痕的宽度增大34%、深度增大1.66倍。

    Abstract:

    The friction coefficient, wear volume and wear scar morphology of the slipper pair composed of tool steel ball and 304 steel under different loads and speeds were investigated by using a friction and wear tester and a white light interferometer, so as to find the optimal working conditions to improve the service life and work efficiency of the slipper pair. Through range and variance analysis, it is found that the influence of load, speed and radius on the friction coefficient is significant, and the friction coefficient reaches the minimum when the load is 100 N, the speed is 50 r/min and the radius is 20 mm. Based on the optimal results of orthogonal test, the control variable test was carried out. The results show that the wear volume first increases and then decreases with the increase of load, and the minimum wear volume is 91.468×106 μm3 at 50 N; the wear volume increases gradually with the increase of rotating speed, and the minimum wear volume is 926.613×106 μm3 at 50 r/min; with the change of load and speed, the depth and width of the wear mark also change, the load has a significant effect on the width of the wear mark; when the load is from 50 N to 150 N, the width of the wear mark increases by 2.2 times and the depth increases by 1.9 times; the speed has a significant impact on the depth of the wear mark, and the width and depth of the wear mark increase by 34% and 1.66 times respectively when the speed is from 50 r/min to 150 r/min.

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寇保福,李振顺,张涨,霍鹏亮.轴向柱塞泵中滑靴副的摩擦磨损性能研究[J].机床与液压,2022,50(1):7-12.
KOU Baofu, LI Zhenshun, ZHANG Zhang, HUO Pengliang. Study on Friction and Wear Performance of Slipper Pair in Axial Piston Pump[J]. Machine Tool & Hydraulics,2022,50(1):7-12

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  • 在线发布日期: 2022-05-13
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