直纹面准双曲线齿轮切齿法研究

发布时间：2018-05-28 19:35

本文选题：准双曲线齿轮 + 齿面形成原理　；参考：《吉林大学》2011年硕士论文

【摘要】：随着我国经济建设的高速发展,准双曲线齿轮在生产建设中的应用越来越广泛。主要用于传递交错轴之间的运动和动力,因为准双曲线齿轮相对于其他形式的锥齿轮,小轮的轴线要偏置一个距离,使得准双曲线齿轮能够做到重合度大、传动效率高,传动平稳,啮合平顺,满足汽车行业对于齿轮布置的要求。但是由于准双曲线齿轮其齿面形成的复杂性,导致齿轮设计和制造都不是十分容易的事情。因此对于准双曲线齿轮在设计加工制造方面的问题,长久以来困扰着齿轮研究方面的专家和学者。本文完全抛弃了传统的理论思路,针对直纹面准双曲线齿轮,提出了一种全新的齿面形成、啮合传动以及设计加工的理论和方法。首先摒弃现有复杂繁琐的齿面形成原理,新型直纹面准双曲线齿轮的大轮齿面是两个与齿轮轴线既不垂直又不平行的平面构成,齿轮的齿槽截面形状为V型,若干个V型槽绕大轮轴线阵列就可得到大轮轮齿。因而对于大轮采用成型法走刀一次即可加工齿面;小轮齿面是由大轮相应齿面按照齿轮恒定传动比共轭展成的直纹曲面,因此对于小轮齿面加工采用两个内联系回转运动(即大小轮的定比传动)包络形成齿面。对大小轮双侧面的加工方法进行探讨、阐述、论证,推导加工过程机床调整参数和刀具运动轨迹坐标方程式。论文当中以新型的直纹面准双曲线齿轮为例,利用CATIA、ADAMS三维设计仿真软件进行了齿轮传动和加工的仿真模拟。通过对该种准双曲线齿轮的加工仿真,进而对提出的新型传动原理和齿面形成原理进行可行性的论证。最后根据新的加工理论,在现有机床的基础上,进行直纹面准双曲线齿轮加工原理相配套的机床初步设计。加工过程中采用片铣刀沿走刀方向线并配合相应的两轴联动即可一次加工出所需齿面。通过本文的研究和讨论,使得所设计的齿轮传动平稳、啮合正确,只需要通过简单刀具和简单的加工过程就可实现切制符合设计要求的直纹面准双曲线齿轮。本文基于新型直纹面准双曲线齿轮齿面形成原理和加工方法,对于解决准双曲线齿轮设计加工制造中的问题,有了创新性的突破,推动了对于直纹面准双曲线齿轮的研究,对提高现在准双曲线齿轮加工水平具有重要意义。
[Abstract]:With the rapid development of economic construction in China, quasi-hyperbolic gears are more and more widely used in production and construction. It is mainly used to transfer motion and power between staggered shafts, because quasi hyperbolic gears are offset by a distance from other bevel gears, so that quasi hyperbolic gears can achieve high coincidence and high transmission efficiency. Smooth transmission, smooth meshing, to meet the automotive industry for gear layout requirements. However, due to the complexity of the tooth surface formation of the quasi-hyperbolic gear, it is not easy to design and manufacture the gear. Therefore, the design, processing and manufacture of quasi-hyperbolic gears have long puzzled the experts and scholars in gear research. In this paper, a new theory and method of tooth surface formation, meshing transmission and design and processing are put forward for straight surface quasi hyperbolic gear. First of all, the complicated and complicated forming principle of tooth surface is abandoned. The large gear tooth surface of a new type of straight-line quasi-hyperbolic gear is composed of two planes which are neither vertical nor parallel to the gear axis, and the profile of the tooth groove section of the gear is V-shaped. A number of V-shaped grooves are arranged around the axis of large wheels and large wheel teeth can be obtained. Therefore, the tooth surface of the small wheel can be machined at one time by using the shaping method for the large wheel, and the tooth surface of the small wheel is a straight surface formed by the conjugation of the corresponding tooth surface of the large wheel according to the constant transmission ratio of the gear. Therefore, the tooth surface is formed by the envelope of two internal contact rotary motion (that is, the constant ratio drive of the large and small wheel) for the machining of the tooth surface of the small wheel. In this paper, the machining methods of the two sides of the large and small wheels are discussed, expounded and demonstrated, and the adjustment parameters and the coordinate equations of the tool movement track during the machining process are deduced. In this paper, a new type of straight surface quasi-hyperbolic gear is taken as an example, and the gear transmission and machining are simulated by using the three-dimensional design simulation software of CATIAA and Adams. Through the machining simulation of this kind of quasi-hyperbolic gear, the feasibility of the new transmission principle and tooth surface forming principle is proved. Finally, according to the new machining theory and on the basis of the existing machine tools, the primary design of the machine tool matching the machining principle of the straight surface quasi hyperbolic gear is carried out. In the process of machining, the needed tooth surface can be machined once by using the milling cutter along the direction of the cutter and with the corresponding two axis linkage. Through the research and discussion in this paper, the designed gear transmission is stable and meshing is correct, and the straight surface quasi-hyperbolic gear can be cut by simple cutting tool and simple machining process. Based on the forming principle and machining method of the tooth surface of a new type of straight surface quasi-hyperbolic gear, this paper has made an innovative breakthrough in solving the problems in the design and manufacture of the quasi-hyperbolic gear, which has promoted the research of the straight surface quasi-hyperbolic gear. It is of great significance to improve the machining level of quasi hyperbolic gear.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.415

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