期刊论文

中文

机械研究与应用

1007-4414

2017

30

5

82-83+86

10.16576/j.cnki.1007-4414.2017.05.022

湖南省教育厅科研项目:油菜割捆机打捆部件的设计与试验研究（编号:16C0768）； 湖南农业大学大学创新型实验项目:草绳打结器的设计（编号:XCX16046）；

本校为第一机构

为了给小型稻草打结器打结装置的设计提供理论依据,以干燥稻草绳为试验材料,分别测定草绳的拉伸强度极限σ和延伸率δ。实验结果表明：直径1 cm的双股草绳能承受6.30 N的极限拉力,拉伸极限强度为0.08 MPa,延伸率为21.96%。直径2 cm的双股草绳能承受18.68 N的极限拉力,拉伸极限强度为0.06 MPa,延伸率为12.11%。为草绳打结器的设计提供了重要的理论依据。

In order to provide theoretical basis for the design of small straw knot devices,with dry straw rope as the experimental material,the tensile strength limit σ and the elongation δ of the straw rope are separately measured. The experimental results show that: the twin straw rope with diameter of 1 cm can bear the ultimate tension of 6. 30 N,the tensile ultimate strength is 0.08 MPa,and the elongation is 21.96%. While the twin straw rope with diameter of 2 cm can bear the ultimate tension of 18.68 N,the tensile ultimate strength is 0.06 MPa,and...