【作者】 王琦；

【导师】 李文辉；

【作者基本信息】 太原理工大学 ， 机械工程， 2018， 硕士

【摘要】 齿轮传动是机械行业里常见的一种传动形式,由于其适用范围宽、传递效率高、工作可靠等优点而得到广泛应用,由于齿轮表面质量直接影响其使用性能、寿命以及整机性能等。因此,对齿轮精加工提出了更高的要求。本文立足于研发一种能解决油泵齿轮现存问题的新工艺,希望能一次性光整加工齿轮的整个表面,既而在保证齿轮表面质量满足要求的同时还能提高光整加工的效率。研究内容如下:(1)在查阅资料及调研的基础下,针对油泵齿轮现存的问题,从理论分析以及案例分析的角度出发,分析了几种常用的滚磨光整加工工艺在加工中的特点,明确了各自的适用范围。(2)结合几种常用滚磨光整加工工艺各自的优点以及油泵齿轮的要求,提出了一种往复旋流复合光整加工工艺方案,并通过实验验证其可行性。(3)建立了运动分析模型并推导计算公式,通过MATLAB软件详细分析了往复旋流复合光整加工工艺中各参数对于齿轮表面质量的影响,明确了齿轮在该工艺方案下的运动特点,并在此基础上对比分析了往复旋流复合光整加工工艺中齿轮被迫转动与否对于齿轮表面质量的影响。(4)通过ADAMS软件进行仿真验证,验证了本课题推导出的切削速度和切削角公式的正确性。同时通过EDEM软件进行仿真分析,从而明确抛磨块与工件之间的相互作用机理,对往复旋流复合光整加工工艺、旋流式滚磨光整加工工艺、两种平行主轴式滚磨光整加工工艺的理论分析了解更为清晰透彻。本文致力于研究往复旋流复合光整加工工艺的特点以及重要参数对工件表面质量的影响,解决油泵齿轮端面加工质量差、寿命低、批量加工效率低等问题;其次,通过多种加工方式的对比,更深入的了解了各种光整加工方式的优点及适用范围,为今后根据工件自身需求选择何种光整加工方式以及加工工艺参数范围的确定提供了理论依据;最后,本文推导出的理论公式以及公式推导的过程,可为其他光整加工理论的推导提供一定的参考价值,同时明确参数的影响有助于缩短设备及产品的研发周期,对滚磨光整加工技术的后续发展意义更为重大。更多还原

【Abstract】 Gear transmission is a common form of transmission in the mechanical industry.Because of its wide application range,high transmission efficiency,and reliable operation,it is widely used.However,the surface quality of the gear directly affects its performance,life,and overall performance.Therefore,higher requirements are placed on gear finishing.This paper is based on the research and development of a new process that can solve the existing problems of the oil pump gear.It is hoped that the entire surface of the gears can be finished by one-time finishing,and the efficiency of the finishing process can be improved while ensuring that the surface quality of the gears meets the requirements.The main research of paper is as follows:1.Based on the review of data and research,aiming at the existing problems of the oil pump gear,from the perspective of theoretical analysis and case analysis,the characteristics of several commonly used barrel finishing processes in processing are analyzed,and their respective application scopes are clarified.2.Combining the advantages of several common barrel finishing processes and the requirements of the oil pump gear,a reciprocating swirling composite finishing process scheme is proposed,and the feasibility is verified by experiments.3.The motion analysis model is established and the calculation formula is deduced.The influence of parameters in the reciprocating swirling composite finishing process is analyzed in detail through the MATLAB software,the motion characteristics of the gear under the process scheme are clarified,and on this basis,through the theoretical analysis,it is clarified that the gears are forced to rotate or fixed in the reciprocating swirling composite finishing process,which affecte the surface quality of the gears.4.Simulation verification by ADAMS software proves the correctness of the cutting speed and cutting angle formula deduced in this paper.At the same time,simulation analysis is performed by EDEM software to clearly define the interaction mechanism between the grinding blocks and the workpiece.The theoretical analysis of the reciprocating swirling composite finishing process,the swirling barrel finishing process,and the two parallel-spindle barrel finishing process is more clearly understood.This article is devoted to the study of the characteristics of the reciprocating swirling composite finishing process and the impact of important parameters on the surface quality of the workpiece,solving the problems of poor processing quality,low life,and low batch processing efficiency of the gear end face of the oil pump;Secondly,through the comparison of various processing methods,we have more in-depth understanding of the advantages and application scope of various finishing methods.In the future,the workpieces according to their own needs to choose what kind of finishing method and the selection of the finishing process parameters provide a theoretical basis;Finally,the theoretical formulas and derivation process of formula from this paper can provide some reference value for the derivation of other finishing theories.At the same time,the optimization of parameters can shorten the research and development cycle of equipment and products,and it is even more significant for the subsequent development of barrel finishing technology.更多还原