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典型故障对直齿轮啮合刚度的影响
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国家自然科学基金资助项目(51665054);新疆自治区科技人才培养项目(QN2016BS0082);自治区研究生科研创新项目(XJGRI2017005)


Influence of Typical Faults on Meshing Stiffness of Spur Gears
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    摘要:

    以外啮合圆柱直齿轮为研究对象,采用有限元法计算典型故障齿的啮合刚度,分析故障齿齿面应力分布特征以及主动轮的齿向载荷分配,研究含齿根裂纹、齿面断裂、齿面点蚀故障的齿轮副对啮合刚度的影响以及载荷变化引起的裂纹故障齿的啮合刚度的变化。分析结果表明:贯通裂纹齿啮合刚度相比斜裂纹齿啮合刚度变化明显,单齿啮合刚度变化更为突出;载荷较小时裂纹故障齿啮合刚度随载荷增大而增大,载荷超过一定值后啮合刚度趋于定值;齿面断裂面的大小严重影响齿轮啮合刚度。

    Abstract:

    Taking the outside meshing spur gear as the research object, the meshing stiffness of fault gear was calculated by finite element method, the fault gear surface stress distribution characteristics and the load distribution on driving wheel tooth were analyzed, the impact of fault gear pairs with tooth root crack, tooth fracture, tooth surface pitting failure on meshing stiffness and the change of the meshing stiffness of the tooth crack gear caused by load change were studied. The analysis results show that the through crack gear meshing stiffness changes obviously than oblique crack gear, the single tooth meshing stiffness change is more prominent; under the condition of low load, crack fault tooth meshing stiffness increases as the load increases, the meshing stiffness tends to a fixed value when the load exceeds a certain value; the tooth fracture size affects the gear meshing stiffness heavily.

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张斌生,周建星,章翔峰.典型故障对直齿轮啮合刚度的影响[J].机床与液压,2019,47(7):164-168.
. Influence of Typical Faults on Meshing Stiffness of Spur Gears[J]. Machine Tool & Hydraulics,2019,47(7):164-168

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  • 在线发布日期: 2019-12-04
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