四圆弧齿廓齿轮泵的设计

发布时间：2018-03-08 23:32

本文选题：圆弧齿轮泵　切入点：流量特性　出处：《宁夏大学》2013年硕士论文　论文类型：学位论文

【摘要】：齿轮泵具有结构简单、体积小、重量轻、自吸性能好、对油液污染不敏感、工作可靠、寿命长、成本低和维修方便等众多优点,故在各种液压机械中得到了广泛应用。本文对渐开线齿轮泵、内啮合摆线泵等常见齿轮泵进行了系统研究,对常见齿轮泵的工作机理进行了分析,明确了其优缺点,并对常见齿轮泵的困油现象、径向不平衡力、间隙泄漏等问题进行了分析。齿轮作为齿轮泵的核心,通过对圆弧齿轮的研究,首次提出了四圆弧齿廓齿轮泵的设计思想,并以泵的最小体积为目标函数,泵的排量,极限速度,齿轮啮合径向间隙等为约束条件,模数、齿数、齿宽为设计变量建立了四圆弧齿廓齿轮泵优化设计数学模型,对其基本参数进行优化设计,解决该类泵的基本参数选择问题；将这些参数与渐开线齿轮泵、普通摆线泵的参数进行比较。对四圆弧齿廓齿轮泵排量、理论流量、瞬时流量、平均流量、流量脉动、压力脉动等特性进行求解分析,并与常见的渐开线齿轮泵的相关参数进行对比,提出了相关的改进措施。最后通过SolidWorks对四圆弧齿轮泵零件进行设计,并建立四圆弧齿轮泵三维模型。本文对四圆弧齿廓齿轮泵进行了系统的研究,解决该类泵的基本参数选择问题,并建立三维模型,将对圆弧齿廓齿轮泵以后的研究具有一定的理论指导作用。
[Abstract]:Gear pump has many advantages, such as simple structure, small volume, light weight, good self-priming performance, insensitive to oil pollution, reliable operation, long life, low cost and convenient maintenance. In this paper, the involute gear pump, inner meshing cycloid pump and other common gear pumps are studied systematically, the working mechanism of common gear pumps is analyzed, and its advantages and disadvantages are clarified. The problems of oil trap, radial imbalance and clearance leakage of gear pump are analyzed. Gear as the core of gear pump, through the research of circular gear, the design idea of four-arc tooth profile gear pump is put forward for the first time. Taking the minimum volume of pump as the objective function, the displacement and limit speed of the pump are obtained. The optimal design mathematical model of four-arc tooth profile gear pump is established based on the design variables of gear meshing radial clearance, modulus, tooth number and tooth width, and the basic parameters are optimized to solve the problem of selecting the basic parameters of this kind of pump. These parameters are compared with those of involute gear pump and common cycloid pump. The characteristics of displacement, theoretical flow, instantaneous flow rate, average flow rate, flow pulsation and pressure pulsation of four-arc tooth profile gear pump are solved and analyzed. Compared with the common involute gear pump, the relative improvement measures are put forward. Finally, the four-arc gear pump parts are designed by SolidWorks, and the three-dimensional model of the four-arc gear pump is established. In this paper, a systematic study on four-arc tooth profile gear pump is carried out to solve the problem of selecting the basic parameters of this kind of pump and to establish a three-dimensional model, which will have a certain theoretical guidance for the future research of circular arc tooth profile gear pump.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH325

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