三阶非圆齿轮泵的流量脉动及可滚齿性研究  

Research of Flow Pulsation & Gear Hobbing of Third-order Non-circular Gear Pumps

作　　者：叶素娣[1] 徐敬华[2] YE Su-di XU Jing-hua(School of Electrical Engineering, Wuhu Institute of Technology, Wuhu 241000,China School of Mechanical Engineering, Zhejiang University, Hangzhou 310027 , China)

机构地区：[1]芜湖职业技术学院电气工程学院,安徽芜湖241000 [2]浙江大学机械工程学院,浙江杭州310027

出　　处：《西安航空学院学报》2017年第3期37-41,77,共6页Journal of Xi’an Aeronautical Institute

基　　金：国家自然科学基金青年-面上连续资助项目(51005204;51375012);浙江省自然科学基金资助项目(Y13E050014);安徽省高校自然科研重点项目(KJ2017A553);安徽省省级质量工程项目(2016ckjh227)

摘　　要：随着齿轮泵向高压大流量低噪声方向发展,提出了一种低困油、少脉动的非圆齿轮泵,并建立相应的节曲线模型。通过2个三阶椭圆齿轮作为工作齿轮的情形(称为3-3组合)、3个三阶椭圆齿轮作为工作齿轮的情形(称为3-3-3组合)在流量和流量脉动率方面的对比,确定3-3-3组合作为非圆齿轮泵的主要结构。非圆齿轮轮齿都有特定的啮合位置,利用坐标变换法分析了非圆齿轮的齿廓方程,为CAD建模和仿真分析提供了理论依据。用图形形式直观地反映出不同阶数非圆齿轮的凸性判别,得到三阶非圆齿轮能用滚齿法加工的条件,为非圆齿轮的加工工艺路线明确了方向。With the development of gear pumps towards the direction of high pressure, high flow, and low noise,the paper presents a kind of non-circular gear pumps with low trapped oil and pulsation,and establishes the corresponding pitch-curve mode. By contrasting 3-3 combination with 3-3-3 combination in terms of flow and flow pulsation rate, the 3-3-3 combination is used as the main structure of non-circular gear pump. Coordinate transformation method is used to analyze the non-circular gear tooth profile equation, which provides a theoretical basis for establishing CAD modeling and simulation analysis. A graph is used to directly reflect the different order number convexity judging of non-circular gear, and obtain the conditions for the processing of three-order non-circular gears through the gear hobbing method, thus pointing out the direction for the technical route of non-circular gear processing.

关 键 词：非圆齿轮 流量脉动 齿轮泵 齿廓方程 凸性判别 

分 类 号：TH132.424[机械工程—机械制造及自动化]