| 外啮合非对称齿轮泵优势分析 |
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| 引用本文： | 李威,王成兵,王小群.外啮合非对称齿轮泵优势分析[J].北京科技大学学报,2007(Z2). |
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| 作者姓名： | 李威 王成兵 王小群 |
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| 作者单位： | 北京科技大学机械工程学院 北京100083 |
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| 基金项目： | 国家自然科学基金资助项目(No50575021) |
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| 摘 要： | 研究了新型非对称双压力角齿轮泵,得出非对称齿轮利用工作侧压力角的增大或齿数的增加能提高流量的同时可有效减小脉动系数的结论.同时工作侧压力角的增大,最小油膜厚度和油膜比厚显著增大,对改善齿面润滑极为有利,并用Matlab软件进行了仿真验证,为进一步推广非对称齿轮泵的应用提供了理论依据.
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| 关 键 词： | 非对称齿轮泵 工作原理 流量脉动 润滑性能 |
The analysis of teeth wear and flux for gear pump with external meshing and unsymmetric teeth |
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| LI Wei,WANG Chengbing,WANG Xiaoqun Mechanical Engineering School,University of Science and Technology Beijing,Beijing ,China.The analysis of teeth wear and flux for gear pump with external meshing and unsymmetric teeth[J].Journal of University of Science and Technology Beijing,2007(Z2). |
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| Authors: | LI Wei WANG Chengbing WANG Xiaoqun Mechanical Engineering School University of Science and Technology Beijing Beijing China |
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| Institution: | LI Wei,WANG Chengbing,WANG Xiaoqun Mechanical Engineering School,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | A new type unsymmetric gear pump with double pressure angles was studied.New formulas for the instantaneous flow and flow pulsation were put out.Compared with symmetric gear pump,the formulas showed that the unsymmetric gear pump could efficiently improve flow pulsation with the rise of instantaneous flow.It is concluded that the sliding coefficient of unsymmetric gear pump was smaller than that of symmetric gear pump.The increase of pressure angle of work side would cause an evident increase in the minimum oil-film thickness and in the specific ratio of oil-film thickness,which is helpful to improve the lubricant characteristics of gear teeth surface.The practical significance of the present gear is demonstrated by the computer simulation with MATLAB software,such predictions can provides the firm basis for the further engineering application of this new-type gear pump with unsymmetric teeth and double pressure angles. |
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| Keywords: | unsymmetric gear pump work principle flow pulsation lubricant characteristics |
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