| 深孔加工负压抽屑装置的优化设计与仿真 |
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| 引用本文： | 赵丽琴,王彪,杨琼瑶.深孔加工负压抽屑装置的优化设计与仿真[J].中北大学学报,2012(3):266-271. |
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| 作者姓名： | 赵丽琴 王彪 杨琼瑶 |
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| 作者单位： | 中北大学机械工程与自动化学院;北方通用动力集团有限公司 |
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| 基金项目： | 山西省科技攻关项目(20080322019);2011年中北大学校科学基金 |
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| 摘 要： | 为解决深孔加工排屑的难题,在分析现有DF深孔钻削系统结构的基础上,运用液压相关理论分析了影响负压抽屑的影响因素.采用Fluent软件对DF系统中负压抽屑装置的喷射角k和负压间隙S进行了力学、速度、能量场仿真,最终通过理论分析与仿真试验的对比研究,得出当k=30°,S=0.4mm时负压效果最好,当k=29°,S=0.5mm时次之.为研究准干式深孔加工新型负压射流结构、负压机理及排屑特性提供了理论基础.
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| 关 键 词： | 负压抽屑 喷射角 负压间隙 优化设计 准干式深孔加工 |
Optimization Design and Simulation of Negative-Pressure Chip Removing Device of Deep-Hole Processing |
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| ZHAO Li-qin,WANG Biao,YANG Qiong-yao.Optimization Design and Simulation of Negative-Pressure Chip Removing Device of Deep-Hole Processing[J].Journal of North University of China,2012(3):266-271. |
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| Authors: | ZHAO Li-qin WANG Biao YANG Qiong-yao |
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| Affiliation: | 1.School of Mechanical Engineering and Automatization,North University of China,Taiyuan 030051,China;2.North General Power Group Co.,Ltd.,Datong 037036,China) |
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| Abstract: | To solve the problem of chip removing of deep-hole processing,both the existing DF deep-hole drilling system structure and the influence factors of the negative-pressure removing crumbs were analyzed by the hydraulic theory.The negative pressure,rate and energy field of the injection angle k and negative pressure gap S in the DF negative pressure device were simulated by using the software Fluent.Through the comparison between the theoretical analysis and the simulation test,it was concluded that when k was 30°and S was 0.4 mm,negative pressure effect were best;when k was 29°and S was 0.5 mm,negative pressure effect were better.The above coclusion provided theoretical basis for the new type negative pressure jet structure,the negative pressure mechanism and characteristics of scraps of near-dry deep-hole processing. |
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| Keywords: | negative-pressure chip removing injection angle negative pressure gap optimization design near-dry deep-hole processing |
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