张琰,黄河,任露泉.挖掘机仿生斗齿土壤切削试验与减阻机理研究[J].农业机械学报,2013,44(1):258-261,229.
Zhang Yan,Huang He,Ren Luquan.Experiment and Drag Reduction Mechanism of Bionic Excavator Tooth during Soil Cutting[J].Transactions of the Chinese Society for Agricultural Machinery,2013,44(1):258-261,229.
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挖掘机仿生斗齿土壤切削试验与减阻机理研究   [下载全文]
Experiment and Drag Reduction Mechanism of Bionic Excavator Tooth during Soil Cutting   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2013.01.048
中文关键词:  工程仿生学  挖掘机斗齿  蝼蛄  切削试验
基金项目:国家自然科学基金重点资助项目(50635030);吉林大学工程仿生教育部重点实验室开放基金资助项目(450060481274)
作者单位
张琰 天津科技大学 
黄河 吉林大学 
任露泉 吉林大学 
中文摘要:模仿蝼蛄爪趾形态设计了挖掘机斗齿。使用多项式拟合方法对爪趾的侧面轮廓线进行拟合,利用快速成型设备制造仿生斗齿样件。通过土壤切削试验,测定了仿生斗齿和JL80斗齿试样的土壤切削阻力。试验结果显示,仿生斗齿切削时受到的土壤阻力较原形斗齿降低约11%。分析表明,仿生斗齿易形成“自刃尖”,保持斗齿整体切削性能,且可在不改变挖掘机设计与工况的条件下,减小切削角,实现减阻。
Zhang Yan  Huang He  Ren Luquan
Tianjin University of Science and Technology;Jilin University;Jilin University
Key Words:Bionic engineering  Excavator tooth  Mole cricket  Soil cutting experiment
Abstract:A bionic excavator tooth was developed, which is bio-inspired and based on the morphology of the toe of mole cricket foreleg claw. The profile line of the mole cricket’s toe was fitted by using polynomial fitting method. The bionic tooth specimens were fabricated by a rapid prototyping machine. The cutting resistances of the bionic tooth and JL80 tooth specimens were measured during soil cutting. The experimental results show that the cutting resistances of bionic tooth is about 11% lower than that of JL80 tooth. The force analysis indicates that the bionic tooth is more likely to form self-sharpening blade so that the cutting performance of the tooth can be maintained. Besides, the bionic tooth is convenient for reducing the cutting angle, which can help for the reduction of cutting resistance, without changing the design and working condition of the excavator.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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