东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (12): 1763-1767.DOI: 10.12068/j.issn.1005-3026.2014.12.021

• 机械工程 • 上一篇    下一篇

定轴横轧螺杆压缩机阴转子的辊型曲线

杨光， 张康生， 胡正寰   

  1. (北京科技大学 机械工程学院， 北京100083)
  • 收稿日期:2013-12-16 修回日期:2013-12-16 出版日期:2014-12-15 发布日期:2014-09-12
  • 通讯作者: 杨光
  • 作者简介:杨光(1986-)，男，山西运城人，北京科技大学博士研究生； 张康生(1952-)，男，北京人，北京科技大学研究员，博士生导师； 胡正寰(1934-)，男，湖北孝感人，北京科技大学教授，博士生导师，中国工程院院士.
  • 基金资助:
    国家自然科学基金资助项目(51075030)； “现代交通金属材料与加工技术北京实验室”资助项目.

Profile Curves of Roller Forming Screw Compressor Driven Rotor with Fixed Cross Rolling

YANG Guang， ZHANG Kang-sheng， HU Zheng-huan   

  1. School of Mechanical Engineering， University of Science and Technology Beijing， Beijing 100083， China.
  • Received:2013-12-16 Revised:2013-12-16 Online:2014-12-15 Published:2014-09-12
  • Contact: ZHANG Kang-sheng
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摘要： 定轴横轧直接近净成形带有螺旋齿形的螺杆转子是一种新型工艺，轧制耦合曲线是其核心和关键.该轧制工艺中，轧辊和轧件的啮合关系与原有啮合关系有较大差异，因此需要根据轧制工艺需求重新构建具有普遍适用性的轧辊和轧件的耦合曲线.以轧制某型号的螺杆阴转子为例，依据轧辊和轧件的共轭啮合运动关系，构建了适合于定轴横轧工艺的轧辊和轧件耦合曲线的几何模型；结合建立的变换矩阵推导求解了相应耦合曲线的参数化方程，实现了轧制工艺的通用性.三维动态啮合仿真模拟显示啮合过程良好，无冲突干涉现象发生，表明所建立的描述轧辊和轧件耦合曲线的数学模型是正确的.

关键词: 耦合曲线, 定轴横轧, 螺杆阴转子, 楔横轧, 动态仿真

Abstract: Fixed cross rolling is an improved process to achieve the near-net forming of the screw rotor with big-spiral teeth， and the key of the process is to couple with the profile curves. In the rolling process， the meshing relationship between the roller and the workpiece is different from the original between the screw rotors， therefore， couple profile of the roller and the workpiece need to be redesigned to accommodate to variable rolling forming. Taking a driven rotor as an example， the geometric model of the coupled profile curves of the roller and the driven rotor propitious to fixed cross rolling was rebuilt by means of envelope analysis. Then，using matrix theory， the corresponding parametric equations of the coupled profile curves were established to realize the parametric design of the roller profile and increase technology universality. Finally， the dynamic simulation results verified the correctness of the previous parametric equations and without the interference phenomenon.

Key words: coupled profile curves, fixed cross rolling, driven rotor, cross wedge rolling, dynamic simulation

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