滑刀式开沟器设计与试验

Design and Experiment of Sliding Knife Furrow Openner

摘要:

针对滑刀式开沟器设计及制造随意性强、应用范围不够广泛的问题，设计了12种具有不同厚度和滑切角的滑刀式开沟器，并在实验室内通过土槽和压力机进行混合型正交试验，试验指标为牵引阻力和正压力。试验结果表明，滑切角是影响滑刀式开沟器作业性能的主要因素，刃口曲线终点的滑切角θA在35°～55°范围内时开沟器具有较好的综合性能。

Abstract:

Twelve kinds of sliding knife furrow openner with different thickness and sliding cutting angle were designed in view of this issue about the casualness in the design and manufacture and limited application. Mixed type orthogonal test was carried out through soil bin and press in the laboratory with test index of traction resistance and vertical pressure. The test results showed that the sliding cutting angle was the main factor effecting its working performance, and the furrow opener possessed better comprehensive performance when its sliding cutting angle in the edge curve terminal point was in the range of 35°～55°. 