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新结构原理的余摆线机械真空泵相继在西德(1971)和我国研制成功。该真空泵具有转数高、振动小、低压下抽速大等优点,是真空获得方面的一大突破。 本文导出了余摆线机械真空泵转子和泵腔的理论型线和实际型线方程式;论述了以C为创成半径、等移距为r、偏心距为e的泵实际型线与以(C-r)为创成半径、偏心距为e的泵理论型线相差甚微;引出了用泵的理论型线方程式很好(但近似)地解决泵的某些问题的方法。根据这种方法,给出了泵入口位置公式和泵吸气腔面积简便公式,讨论了泵的容积利用系数;分析了泵型线设计的各方因素;推出了控制转子相位小齿轮所承受的最大工作扭矩公式;提供了以小齿轮抗弯强度初算泵型线的方法。 文中还给出了泵腔型线长径M的计算公式。
The new principle of the trochanter mechanical vacuum pump successively in West Germany (1971) and China successfully developed. The vacuum pump with a high number of revolutions, small vibration, pumping speed under low pressure and other advantages, is a major breakthrough in vacuum access. This paper derived the trochoid mechanical vacuum pump rotor and pump cavity of the theoretical line and the actual line equation; discusses the C as a radius, equidistant distance r, eccentric distance e actual pump line and (Cr ) There is a very small difference between the theoretical lines for creating a radius and the eccentricity e and leads to a good (but approximate) solution to some of the problems with the pump using the theoretical line equation. According to this method, a simple formula of pump inlet position formula and pump suction cavity area is given, volumetric utilization factor of pump is discussed, various factors of pump line design are analyzed, and the control method of controlling rotor phase pinion Maximum working torque formula; provides a method of calculating the initial pump line with the flexural strength of pinion. The paper also gives the calculation formula of the cavity length M of the pump cavity.