吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (2): 501-507.doi: 10.13229/j.cnki.jdxbgxb201502025

• Orignal Article • Previous Articles     Next Articles

Experimental study of friction and tensile properties of wheat

FU Jun1,2,QIAN Zhi-hui1,2,YIN Wei1,2,WANG Jia-jia1,2,REN Lu-quan1,2   

  1. 1.College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China;
    2.Key Laboratory of Bionic Engineering of Ministry of Education,Jilin University,Changchun 130022,China
  • Received:2014-06-05 Online:2015-04-01 Published:2015-04-01

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Abstract:

To overcome the problems in wheat harvesting machine such as loss, damage, high impurity rate, fracture and adhesion, the friction and tensile properties of wheat were studied by experiments. The 'Jinan wheat 20' was used as subject. The moisture content of the wheat was 36.16% measured with a PM-8188 grain moisture tester. The static friction coefficient was measured on a mechanical static friction test bench. The tensile curve was obtained using a QT-1186 electronic testing machine. Results show that the static friction between rubber and wheat is higher than other materials. So the bionic reel and threshing mechanism made of rubber could increase the static friction force. The tensile strength gradually increases from the bottom to top. Using horizontal rotation rub threshing process and bionic cutting parts could improve the threshing performance and reduce the impurity rate with lower power consumption.

Key words: agricultural mechanization engineering, harvest machinery, friction, wheat, tension property

CLC Number: 

  • S225.3
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