双组摆线针轮差速器用于卧螺离心机的探讨

Discussion of Double Cycloidal Pinwheel Differentials Used in Horizontal Spiral Centrifuges

鉴于摆线针轮差速器具有效率高、噪音小、使用可靠、维修方便、制造成本低等优点,被国内外离心机厂商广泛应用。但其缺点,一是与同样承载能力的其他类型行星差速器相比,体积与重量较大,不适用于大规格的卧螺离心机;其二,存在理论上难以解决的力偶不平衡问题,一定程度上影响离心机运转平稳。针对双组摆线针轮差速器用于卧螺离心机进行研究探讨,将采用单组摆线轮的摆线针轮传动形式改进为采用双组摆线轮的摆线针轮传动形式,原由一台差速器承担的载荷改为由二台相同规格的差速器来分担,使摆线针轮差速器的承载能力提高一倍,而体积及重量仅增大20%~30%。从而克服了上述两大缺点。

The cycloidal pinwheel differential is widely used by domestic and foreign centrifuges manufactures because of the advantages of high efficiency, low noise, reliable use, convenient maintenance and low manufacturing cost. etc. One disadvantage of the cycloidal pinwheel differential is the larger volume and weight compared with other types of planetary gear differentials at the same capacity, and not suitable for larger horizontal spiral centrifuges; another is the couple unbalance problem which is hardly solved in theory and affect the smooth operations of centrifuges to a certain extent. In this paper, double cycloidal pinwheel differentials used in horizontal spiral centrifuges were discussed. The cycloid gear drive form was improved from a single group into double groups, then the load originally assumed by one differential was shared by two identical specifications differentials, which doubled the load capacity of cycloidal differential, while the volume and weight were increased only by 20%~30%. Thus overcome the above two disadvantages.