| 引用本文: | 林超,樊 宇,张正文,才立忠,李忠华.增材制造椭圆锥齿轮的齿面与齿距误差分析[J].哈尔滨工业大学学报,2014,46(7):69.DOI:10.11918/j.issn.0367-6234.2014.07.012 |
| LIN Chao,FAN Yu,ZHANG Zhengwen,CAI Lizhong,LI Zhonghua.Tooth surface and pitch error analysis of elliptical bevel gearing by additive manufacturing[J].Journal of Harbin Institute of Technology,2014,46(7):69.DOI:10.11918/j.issn.0367-6234.2014.07.012 |
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| 摘要: |
| 为提高椭圆锥齿轮增材制造的加工精度,减少其加工误差,对增材制造加工的椭圆锥齿轮进行误差测量,并分析误差产生的原因．运用齿轮啮合空间传动原理及增材制造的基本原理,建立了椭圆锥齿轮空间啮合坐标系、增材加工坐标系、分层模型、椭圆锥齿轮的理论误差模型和误差检测模型;对椭圆锥齿轮进行前处理分析,并对增材制造过程进行研究,获得该齿轮增材制造的加工方法;采用超景深三维显微系统和三坐标测量机对该齿轮进行检测,分析其表面误差精度与齿距误差．结果表明:利用增材制造法加工的椭圆锥齿轮误差偏大;优化STL模型,减小金属粉末直径,减少激光半径和热效应对加工层的影响,均有助于提高增材制造加工精度． |
| 关键词: 齿轮 椭圆锥齿轮 误差分析 增材制造 加工精度 |
| DOI：10.11918/j.issn.0367-6234.2014.07.012 |
| 分类号:TH132.424 |
| 基金项目:国家自然科学基金资助项目 (51275537); 中央高校基本科研业务费资助项目(CDJZR12110072). |
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| Tooth surface and pitch error analysis of elliptical bevel gearing by additive manufacturing |
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LIN Chao, FAN Yu, ZHANG Zhengwen, CAI Lizhong, LI Zhonghua
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(The State Key Laboratory of Mechanical Transmission, Chongqing University, 400030 Chongqing, China)
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| Abstract: |
| To improve accuracy and reduce processing error, the elliptical bevel gearing by additive manufacturing is measured, and the causes of error are analyzed. Space spherical coordinate system, additive manufacturing coordinate system, layers model, theoretical error model and error detection model of ellipse elliptical bevel gear are established by the meshing theory of space transmission and the theory of additive manufacturing. The pre-process of elliptical bevel gearing is analyzed, the process of additive manufacturing is researched and the additive manufacturing method of this gear is obtained. The gears are detected by digital microscope system and coordinate measuring machine, to analyze the surface precision and gear pitch error. The analysis results show that the error of ellipse bevel gear is a little big by the use of material manufacturing method. Optimizing STL model, reducing the diameter of metal powder, decreasing the effect on the processing layer by laser radius and thermal effect, will contribute to raise additive manufacturing precision. |
| Key words: gear elliptical bevel gear error analysis additive manufacturing precision |
