【摘要】 非正交锥齿轮是四缸双作用斯特林发动机可变倾角斜盘传动装置关键部件,在斜盘倾角调节过程中承受较大的斜盘倾角维持力矩。为保证发动机可靠有效工作,锥齿轮的设计及精细强度分析尤为必要。基于此,针对大功率四缸双作用斯特林斜盘驱动发动机,依据可变倾角斜盘传动装置传动布局要求,开展了斯特林发动机非正交锥齿轮传动系统参数设计研究,建立了精细锥齿轮接触强度分析三维模型。其次,利用有限元分析软件Workbench进行了仿真分析,检验非正交锥齿轮传动系统性能。在此基础上,探讨了几何参数变化对锥齿轮啮合性能的影响。结果表明,在满足斯特林发动机整机结构参数设计要求情况下,齿轮最大形变量以及最大应力均随齿数在一定范围内增加而减小。这一结论将为非正交锥齿轮参数设计及动态分析提供一定的理论依据,为四缸双作用斯特林发动机可变倾角斜盘驱动系统的优化及性能提升提供理论参考。更多还原

【Abstract】 The non-orthogonal bevel gear is the key component of a four-cylinder double-acting Stirling engine variable incline angle swashplate drive device,which can be used to support the torque of the inclined plate inclination in the angle adjustment of the inclined plate. In order to ensure the reliable and effective operation of the engine,the design of bevel gear and the analysis of fine strength are necessary. Based on this,in view of the high power four-cylinder double-acting Stirling swashplate engine,based on the variable angle of inclined plate transmission device layout requirements,the parameter design research of a Stirling engine nonorthogonal bevel gear transmission system is conducted,three-dimensional model of fine bevel gear contact strength analysis is established. Secondly,simulation analysis is carried out by using the finite element analysis software Workbench to verify the performance of the non-orthogonal bevel gear transmission system. On this basis,the influence of geometrical parameters on meshing properties of bevel gears is discussed. The results show that the maximum shape variables and the maximum stress of the gear are decreased with the increase of the tooth number in a certain range. This conclusion will provide certain theoretical basis for design and dynamic analysis for four-cylinder double-acting Stirling engine variable angle of inclined plate drive system optimization and performance improvement.更多还原