基于等强度的起重机行星减速机传动方案研究

发布时间：2019-03-12 17:11

【摘要】：随着我国工程机械行业的迅速发展,对起重机的需求越来越多,与其配套的传动装置——行星减速机的市场需求也在不断扩大。行星齿轮传动是行星减速机的重要传动副,其方案设计的合理与否直接影响减速机传动性能,进而影响机械设备的使用性能。针对系列起重机用2K-H (NGW)型行星减速机产品,深入研究齿轮传动系统中各齿轮参数及关键零部件结构对齿轮等强度的影响,同时开发其相应的设计软件,实现行星减速机齿轮系统设计的程序化。本文主要研究内容包括： (1)研究了起重机用行星减速机齿轮传动方案。基于等强度原则,深入研究了行星齿轮配齿计算算法与设计流程,得到一套较为准确和通用的行星齿轮传动系统方案设计算法,并开发了其设计软件。 (2)基于国际标准化组织(ISO)最新齿轮强度计算标准ISO6336-2006,同时考虑起重机用行星减速机工作特点及使用要求,研究了行星齿轮强度计算中各项参数对齿轮等强度目标的影响,按此行星齿轮强度计算算法,以Matlab为平台开发了齿轮强度计算专用模块。 (3)对行星齿轮变位系数确定的问题进行了深入研究。基于齿轮等强度原则及变位系数取值的限制条件,选取设计变量,确定约束条件,得到优化设计目标函数,立足工程实际实现了变位系数取值的程序化。 (4)研究了行星减速机齿轮传动系统方案评价的各项性能指标及评价方法,对等接触和等弯曲强度分配指标权重值,得到多指标综合评价程序。研究成果应用于25吨汽车起重机用行星减速机产品研发中,并经减速机试验台试验,结果验证了以本文研究方法设计的行星减速机整机性能良好。
[Abstract]:With the rapid development of construction machinery industry in China, there is more and more demand for cranes, and the market demand for planetary reducer, which is supporting the crane, is expanding. Planetary gear transmission is an important transmission pair of planetary reducer. Whether the scheme design is reasonable or not directly affects the transmission performance of the reducer and then affects the service performance of machinery and equipment. Aiming at the products of 2K-H (NGW) planetary reducer used in series cranes, the influence of gear parameters and key parts structure on the strength of gears in gear transmission system is deeply studied, and the corresponding design software is developed at the same time. The programming of gear system design of planetary reducer is realized. The main contents of this paper are as follows: (1) the gear transmission scheme of planetary reducer for crane is studied. Based on the principle of equal strength, the calculation algorithm and design flow of planetary gear matching are studied deeply, and a set of accurate and general scheme design algorithm of planetary gear transmission system is obtained, and its design software is developed. (2) based on the latest (ISO) gear strength calculation standard ISO6336-2006, of the International Organization for Standardization (ISO), the working characteristics and application requirements of planetary reducer for cranes are considered at the same time. The influence of the parameters on the equal strength target of the planetary gear is studied. According to the calculation algorithm of the planetary gear strength, the special module of the gear strength calculation is developed on the platform of Matlab. (3) the determination of displacement coefficient of planetary gear is deeply studied. Based on the principle of equal strength of gears and the limiting conditions of the value of displacement coefficient, the design variables are selected, the constraint conditions are determined, and the objective function of optimal design is obtained. Based on the engineering practice, the programming of the value of displacement coefficient is realized. (4) the performance index and evaluation method of the scheme evaluation of gear transmission system of planetary reducer are studied, the weight value of equal contact and equal bending strength distribution index is studied, and the multi-index comprehensive evaluation program is obtained. The research results have been applied to the research and development of 25 ton planetary reducer for truck cranes. The test results show that the planetary reducer designed in this paper has good performance.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH21;TH132.46

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