The trochoidal contours for positive shaft-hub connections in drive technology

该项目的重点是：1)基于SEW-EURODRIVE GmbH & Co.在纯扭转载荷条件下的具体实际应用，对之前DFG项目的现有成果进行延伸，是该项目的主要重点。在这里，针对给定的应用确定了基于具有肩部形状的复杂tro仿体的最佳连接。几何设计是基于可用的装配空间。结合空间约束设计，数值研究了齿数z和主偏心距e0等可变几何参数对连接承载能力的影响。优化后的复合矫形体可用于实验试样试验。为了能够在传输能力方面展示复杂齿形的潜力，根据[DIN 6885]作为标准参考化合物的标准键连接将进行实验测试并与齿形剖面进行比较。2)研究了旋转弯曲载荷作用下的轮廓特性表征。在此步骤中，主要在弯曲和复合载荷条件下对第一步确定的摆线轮廓进行数值检验。齿数z和主偏心率e0是该齿形最重要的几何参数。此外，还进行了随机实验来验证数值趋势。此外，还打算对标准键连接进行基于实验的比较。3)经济分析的目的是为了制造最优的摆线轮廓。针对可实现的型材质量、公差和加工时间，研究了适用于未来工业批量生产新型型材的可能制造技术。特别是，型材制造成本所要求的精度应进行评估。可能的制造工艺是在花键领域使用的辊成形和辊铣削。此外，在多边形连接领域，目前采用两主轴旋转和摆动方法。最后将摆线轮廓的制造成本与已知关键连接件的制造成本进行了比较。

The focal points of the project are:1) Extension of the existing results from the preceding DFG project based on a concrete practical application of SEW-EURODRIVE GmbH & Co. under pure torsional loading conditions is the main focal point of the project. Here, an optimal connection based on a complex trochoid with a shouldered form is determined for the given application. The geometric design is based on the available assembly space. In connection with the space-constrained design, the influences of the variable geometry parameters such as the teeth number z and the main eccentricity e0 on the load-bearing capacity of the connection are numerically investigated. The optimized complex trochoid can be used for the experimental specimen tests. In order to be able to demonstrate the potential of the complex trochoid in terms of its transmission capacity, a standard key connection according to [DIN 6885], which serves as a standard reference compound, will be experimentally tested and compared to the trochoidal profile.2) The characterization of the contour properties is investigated for the rotational bending loads. The trochoidal contour determined in the first step is mainly numerically examined in this step on bending and combined load conditions. The geometric parameters teeth number z and the main eccentricity e0 can be varied and optimized as the most important parameters of the profile. In addition, random experiments are carried out to validate the numerical tendencies. Furthermore, an experimentally based comparison to the standard key connections is intended.3) An economic analysis is intended for the manufacturing of the trochoidal optimal profile. Possible manufacturing technologies, which are suitable for a future industrial mass production of the novel profiles, are investigated with regard to the achievable profile quality, the tolerances and the process times. In particular, the profile manufacturing costs of a required accuracy should be evaluated. Possible manufacturing processes are the roll forming and roll milling used in the field of splines. Furthermore, in the field of polygon connection two-spindle rotating and oscillating methods are nowadays used. The manufacturing costs of the trochoidal profile is finally compared with the known costs of the key connections.