四圆弧齿廓齿轮成形磨削法的研究、仿真及试验
发布时间：2018-11-22 15:51
【摘要】：理论研究表明圆弧齿轮在承载能力等方面展现出明显的优势,尤其是高精度的硬齿面圆弧齿轮具有较高的承载能力,但硬齿面磨削一直是其难点。四圆弧齿廓齿轮是一种新型的圆弧齿轮,因为其齿形较为复杂,且齿廓参数繁多,对它的加工提出了更高的要求。数控成形法磨削加工是提高硬齿面齿轮加工精度,降低齿轮齿面粗糙度的有效途径,且具有高效、高精度等优点。理论上数控成形法磨削能够适应任何齿廓曲线的齿面加工,所以将成形法磨削应用到硬齿面四圆弧齿轮的加工中是较好的选择。因此,本文将以成形法磨削加工原理为基础,针对硬齿面四圆弧齿廓齿轮的制造加工问题进行探索和研究,该项研究工作对硬齿面四圆弧齿轮实际加工制造具有一定理论指导价值和现实参考意义。本课题对四圆弧齿廓齿轮的成形法磨削进行了研究、探索,论文主要内容以及取得的成果如下：(1)基于成形法磨削原理及成形磨削运动,建立四圆弧齿轮成形磨削几何模型及相关空间坐标系。通过四圆弧齿轮齿面方程、曲面空间啮合接触条件以及空间坐标系之间的相互转换,得到四圆弧齿轮齿槽面与成形砂轮磨削表面之间的空间接触线数学模型,最终求得成形砂轮轴向截形。利用MATLAB数值计算和图形处理等功能对所求成形砂轮轴向截形进行了计算并输出仿真图形。(2)根据成形法磨削时所需运动,运用SOLIDWORKS软件建立成形磨齿机的三维虚拟样机,并将其导入VERICUT软件平台里,与求得的砂轮轴向截形形成的成形砂轮相结合,编写数控程序驱动虚拟样机进行四圆弧齿轮成形磨削加工的仿真。为四圆弧齿廓齿轮的实际生产提供理论参考。(3)完成了硬齿面四圆弧齿轮的实际加工和四圆弧齿轮减速器的组装,根据设计的性能试验方案搭建具体的实物试验台,实现了四圆弧齿轮减速器的空载试验、加载试验和超载试验,并对转速转矩、传动效率、噪声、油池温度等进行了数据采集和对比分析。通过本次试验,验证了硬齿面四圆弧齿廓齿轮的承载能力,为后续工作奠定了基础。
[Abstract]:Theoretical research shows that circular arc gear has obvious advantages in bearing capacity, especially the high precision hard tooth arc gear has higher bearing capacity, but hard tooth surface grinding is always its difficulty. The four-arc tooth profile gear is a new type of circular arc gear, because its tooth shape is more complicated, and the tooth profile parameters are various, the higher requirements for its machining are put forward. NC forming grinding is an effective way to improve the machining accuracy and reduce the surface roughness of hard gear, and has the advantages of high efficiency and high precision. In theory, NC forming grinding method can adapt to the tooth surface machining of any tooth profile curve, so it is a better choice to apply the forming method grinding to the machining of hard tooth surface four circular arc gear. Therefore, based on the principle of forming grinding, this paper will explore and study the manufacturing and processing of four circular arc gear with hard tooth surface. The research work has certain theoretical guiding value and practical reference significance for the manufacture of hard tooth surface four circular arc gear. The main contents and achievements of this paper are as follows: (1) based on the principle of forming grinding and the movement of forming grinding, The geometric model of forming grinding of four circular arc gears and the related space coordinate system are established. Based on the tooth surface equation of four circular arc gear, the contact condition of surface space meshing and the transformation of space coordinate system, the mathematical model of space contact line between the tooth groove surface of four circular arc gear and the grinding surface of forming grinding wheel is obtained. Finally, the axial section of the forming grinding wheel is obtained. The axial section of the formed grinding wheel is calculated and simulated by using the functions of MATLAB numerical calculation and graphic processing. (2) according to the motion required in the forming grinding process, the 3D virtual prototype of the forming grinding machine is established by using SOLIDWORKS software. It is introduced into the VERICUT software platform, and combined with the obtained grinding wheel formed by axial section, a numerical control program is written to drive the virtual prototype to simulate the forming grinding of four circular arc gears. It provides a theoretical reference for the practical production of four circular arc gear. (3) the actual machining of the four circular arc gear with hard tooth surface and the assembly of the gear reducer with four circular arc gears are completed, and the concrete physical test bench is built according to the designed performance test scheme. The no-load test, loading test and overload test of four-circular arc gear reducer are realized, and the data collection and comparative analysis of rotational speed torque, transmission efficiency, noise, oil pool temperature and so on are carried out. Through this experiment, the bearing capacity of the four circular arc gear with hard tooth surface is verified, which lays a foundation for the following work.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TG616
本文编号：2349803
[Abstract]:Theoretical research shows that circular arc gear has obvious advantages in bearing capacity, especially the high precision hard tooth arc gear has higher bearing capacity, but hard tooth surface grinding is always its difficulty. The four-arc tooth profile gear is a new type of circular arc gear, because its tooth shape is more complicated, and the tooth profile parameters are various, the higher requirements for its machining are put forward. NC forming grinding is an effective way to improve the machining accuracy and reduce the surface roughness of hard gear, and has the advantages of high efficiency and high precision. In theory, NC forming grinding method can adapt to the tooth surface machining of any tooth profile curve, so it is a better choice to apply the forming method grinding to the machining of hard tooth surface four circular arc gear. Therefore, based on the principle of forming grinding, this paper will explore and study the manufacturing and processing of four circular arc gear with hard tooth surface. The research work has certain theoretical guiding value and practical reference significance for the manufacture of hard tooth surface four circular arc gear. The main contents and achievements of this paper are as follows: (1) based on the principle of forming grinding and the movement of forming grinding, The geometric model of forming grinding of four circular arc gears and the related space coordinate system are established. Based on the tooth surface equation of four circular arc gear, the contact condition of surface space meshing and the transformation of space coordinate system, the mathematical model of space contact line between the tooth groove surface of four circular arc gear and the grinding surface of forming grinding wheel is obtained. Finally, the axial section of the forming grinding wheel is obtained. The axial section of the formed grinding wheel is calculated and simulated by using the functions of MATLAB numerical calculation and graphic processing. (2) according to the motion required in the forming grinding process, the 3D virtual prototype of the forming grinding machine is established by using SOLIDWORKS software. It is introduced into the VERICUT software platform, and combined with the obtained grinding wheel formed by axial section, a numerical control program is written to drive the virtual prototype to simulate the forming grinding of four circular arc gears. It provides a theoretical reference for the practical production of four circular arc gear. (3) the actual machining of the four circular arc gear with hard tooth surface and the assembly of the gear reducer with four circular arc gears are completed, and the concrete physical test bench is built according to the designed performance test scheme. The no-load test, loading test and overload test of four-circular arc gear reducer are realized, and the data collection and comparative analysis of rotational speed torque, transmission efficiency, noise, oil pool temperature and so on are carried out. Through this experiment, the bearing capacity of the four circular arc gear with hard tooth surface is verified, which lays a foundation for the following work.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TG616
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