| 方草压捆机D型打结器驱动齿盘重建与优化 |
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| 引用本文： | 李 慧,李洪文,何 进,王庆杰,吴红丹,何 卿.方草压捆机D型打结器驱动齿盘重建与优化[J].农业工程学报,2010,26(5):96-102. |
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| 作者姓名： | 李 慧 李洪文 何 进 王庆杰 吴红丹 何 卿 |
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| 作者单位： | 1. 中国农业大学工学院,北京,100083
2. 国家知识产权局协作中心,北京,100190 |
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| 基金项目： | 公益性行业（农业）科研专项（200903009） |
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| 摘 要： | 中国目前方草压捆机打结器主要依赖进口，而进口打结器驱动齿盘由于凸轮工作曲面连续性差、未达静平衡,易使驱动齿盘磨损，影响打结器工作稳定性，不能满足秸秆高速打捆要求。该文针对这一问题，基于逆向工程原理，以Imageware和pro/E软件为工具，优化设计了一种曲面质量高、传动平稳的配重式驱动齿盘。驱动齿盘凸轮槽工作面曲面连续性和等值面分析结果表明，优化后的配重式驱动齿盘凸轮曲面位置偏差为0.0013～0.0037 mm，切率变化为0.1393°～0.1400°。曲面曲率变化连续，弦偏差为0.100 mm，达到A级曲面要求。凸轮曲面配合零件工作平稳，可有效保证打结作业时序。齿盘平衡检测结果表明，设计的配重式驱动齿盘静平衡性能高，可以满足我国收获时节大秸秆量下高速打捆的要求。
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| 关 键 词： | 农业机械，逆向工程，曲面重建，D型打结器，驱动齿盘，三维重建，曲面优化 |
| 收稿时间： | 2009/8/23 0:00:00 |
| 修稿时间： | 2009/12/4 0:00:00 |
Reconstruction and optimal design of driving dentate disc of D-bale knotter based on reverse engineering |
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| Li Hui,Li Hongwen,He Jin,Wang Qingjie,Wu Hongdan,He Qing.Reconstruction and optimal design of driving dentate disc of D-bale knotter based on reverse engineering[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(5):96-102. |
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| Authors: | Li Hui Li Hongwen He Jin Wang Qingjie Wu Hongdan He Qing |
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| Abstract: | Driving dentate disc is the power source of mechanical bale knotter. The bale knotters used in domestic mostly depend on imports and the knotters could not meet the requirements of high-efficient straw belting due to the unstable working status caused by un-smooth cam working surface of driving dentate disc and discontent with static equilibrium. This paper took the D-twine knotter as the research objective and optimal designed a weight driving dentate disc with the features of high surface quality and stable transmission based on the theory of reverse engineering. Through the analysis of the working principle of D-twine knotter, the paper reconstructed the 3D driving dentate disc and optimized its surface and structure with the Imageware and Pro/E software. The analysis of multi-surface continuity and surface contour of driving dentate disc showed that after the optimization of weight driving dentate disc, its surface position deviation and change rate of tangent were 0.0013-0.0037 mm and 0.1393°-0.1400°, respectively. The change of surface curvature was continuous and the chord deviation was 0.100 mm, indicating the disc surface met the requirements of A-class surface. Furthermore, the parts matched with disc surface worked steadily, which ensured the operation order in straw-belting. The new center of the disc was about (2.87, 0, 0) mm, which reached the requirements of static equilibrium and could meet the requirements of high-speed belting in heavy straw cover fields in harvest season in China. |
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| Keywords: | agricultural machinery reverse engineering surface reconstruction D-bale knotter driving dentate disc 3D restruction surface optimization |
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