3K（Ⅲ）型行星传动配齿计算方法及程序设计

在对3K（ΙΙΙ）型行星传动结构分析的基础之上,推导了3K（ΙΙΙ）型行星齿轮传动配齿计算方法,归纳了详细的配齿步骤。通过计算机编程实现了配齿程序化设计,并编制了程序界面。在实际设计工作中只需输入相关参数,即可得到所需要的配齿方案。     

基于空间包络理论的双刀盘铣齿关键参数优化

针对直线廓形的单铣刀盘铣削斜齿轮时齿面法向偏差较大且分布不均匀的问题,提出一种双铣刀盘铣齿法来减少齿面法向偏差。根据空间包络原理,对双刀盘铣齿进行建模并通过解析算法求取双刀盘所包络的端面齿形和齿面法向偏差。在不过切的前提下,求取刀盘间距的调整范围,并结合刀轴中心距分析两者与齿面最大法向偏差的关系。根据所得规律,以双刀盘铣齿关键参数—刀盘间距、刀轴中心距与法向偏差的关系为约束条件,通过调整刀盘间距与刀轴中心距,使用离散变量网格直接寻优算法,以减少齿面最大法向偏差为优化目标,对双刀盘铣齿关键参数进行优化研究,从而实现对齿面法向偏差的优化。通过物理样机试验表明,该优化方法可有效减少齿面最大法向偏差。     

面向特大型齿轮的激光跟踪多站位定位

提出了面向特大型齿轮的激光跟踪多站位定位测量方法以提高特大型齿轮激光跟踪在位测量系统的齿轮定位精度并精确确定测量仪器与被测齿轮位置与姿态的关系。根据激光跟踪仪多站位测量提供的冗余数据优化求解空间两点间共线方程,建立了特大型齿轮激光跟踪多站位测量模型。然后,提出了利用奇异值分解修正多站位测量模型解析矩阵条件数的方法。 实验结果表明,使用多站位测量模型求得的不同站位待测点间距离的标准差的均值为0.008 mm,明显小于直接在不同站位下测量的标准差均值0.024 mm,表明多站位测量模型具有良好精度控制效果。本文的研究提高了齿轮定位时所需测量点的三维测量精度,为特大型齿轮激光跟踪多站位测量系统建立齿轮坐标模型提供了可靠的数据来源。     

多轴压缩机逆向设计方法研究

阐述了多轴压缩机相对于一般压缩机所具有的优点及其主要结构特征,对多轴压缩机半开式叶轮的数据采集方法、三维模型重建进行了详细分析,并介绍了多轴压缩机齿轮箱和蜗壳的逆向设计过程与注意事项,论述了多轴压缩机逆向设计技术所存在的问题,进一步说明逆向工程技术是满足市场需求、促进新产品研发以及加快先进透平机械设备国产化步伐的重要手段。     

PROTOS 70卷接机组卷烟纸补偿差动齿轮箱的改进

PROTOS 70卷接机组卷烟纸补偿差动齿轮箱存在渗漏油问题,通过对卷烟纸补偿传动机构的工作原理及故障原因进行分析,提出了改进措施:在箱体上加装泄压装置和呼吸器,可将箱体内的油气释放出来,从而达到延缓箱体泄漏的目的。     

瓦楞辊的齿形设计

本文通过对瓦辊楞型使用性能分析进行楞型设计。     

从动轴粘滞阻尼器安装对齿轮轴系减振的实验研究

针对齿轮箱较为复杂的振动与噪声问题,对齿轮轴系振动特性及粘滞阻尼器的减振特性进行了研究,并提出了一种新型粘滞阻尼器用于控制齿轮轴系的振动。该粘滞阻尼器通过轴承与齿轮轴连接实施了齿轮轴系振动能量的消耗,从而达到了减振的目的。搭建了粘滞阻尼器—齿轮减速箱实验台,对粘滞阻尼器作用于输出轴时对齿轮轴系统减振特性进行了实验研究。研究结果表明,该粘滞阻尼器能有效抑制齿轮轴系的振动的各频率成分,减振幅度主动轴和从动轴分别高达55.4%和65.2%,从而可保证齿轮轴系稳定运行。     

Modeling and Calculation of Impact Friction Caused by Corner Contact in Gear Transmission

Corner contact in gear pair causes vibration and noise,which has attracted many attentions.However,teeth errors and deformation make it difficulty to determine the point situated at corner contact and study the mechanism of teeth impact friction in the current researches.Based on the mechanism of corner contact,the process of corner contact is divided into two stages of impact and scratch,and the calculation model including gear equivalent error-combined deformation is established along the line of action.According to the distributive law,gear equivalent error is synthesized by base pitch error,normal backlash and tooth profile modification on the line of action.The combined tooth compliance of the first point lying in corner contact before the normal path is inversed along the line of action,on basis of the theory of engagement and the curve of tooth synthetic complianceload-history.Combined secondarily the equivalent error with the combined deflection,the position standard of the point situated at corner contact is probed.Then the impact positions and forces,from the beginning to the end during corner contact before the normal path,are calculated accurately.Due to the above results,the lash model during corner contact is founded,and the impact force and frictional coefficient are quantified.A numerical example is performed and the averaged impact friction coefficient based on the presented calculation method is validated.This research obtains the results which could be referenced to understand the complex mechanism of teeth impact friction and quantitative calculation of the friction force and coefficient,and to gear exact design for tribology.     

新型圆柱滚子式回转驱动装置的设计

大型、超大型港口用门座起重机很大一部分都使用转柱式回转支承装置,这一结构形式的回转驱动大部分都采用回转针齿轮式。但传统回转驱动装置的驱动齿轮与圆柱滚子只有很小的间隙,且不能调整,使用过程中容易发生卡死与跳齿现象。文中提出一种新型的圆柱滚子式回转驱动装置,解决了由加工、安装等误差而造成的卡死以及由磨损引起的跳齿现象。通过工程实际验证,这一新型回转驱动装置使用情况良好,可以在实际工程项目中推广使用。     

Topological Modeling of a One Stage Spur Gear Transmission

Finding a basis of unification for the modeling of mechatronic systems is the search subject of several works.This paper is a part of a general research designed to the application of topology as a new approach for the modeling of mechatronic systems.Particularly,the modeling of a one stage spur gear transmission using a topological approach is tackled.This approach is based on the concepts of topological collections and transformations and implemented using the MGS（modeling of general systems）language.The topological collections are used to specify the interconnection laws of the one stage spur gear transmission and the transformations are used to specify the local behavior laws of its different components.In order to validate this approach,simulation results are presented and compared with those obtained with MODELICA language using Dymola solver.Since good results are achieved,this approach might be used as a basis of unification for the modeling of mechatronic systems.