基于Pro/E的免耕垄作播种机清垄装置设计

    Design for ridge cleaning equipment of no-tillage planter based on Pro/E

    • 摘要: 破茬清垄装置是免耕播种机防止堵塞保证良好播种质量的重要工作部件。清垄装置在工作时,残茬经常会落到临近地垄上,而不一定会落进垄沟之中,这就需要对影响残茬运动轨迹的因素进行分析,优化,最终使残茬可以落入垄沟中。为此,该文应用Pro/E软件的建模和运动仿真等功能建立了清垄装置仿真模型,并对其清垄的运动情况进行了仿真分析。分析结果表明,影响残茬运动轨迹的主要参数是破茬清垄装置的前进速度v,水平圆盘的摆动速度u,后翼的开合角度a。通过取b角为不同值时对水平圆盘进行仿真,并对残茬的运动情况进行了观察。经分析,当前进速度v=1.153 m/s,后翼的夹角a?=60°~120°范围取值时,残茬的落地位置较好。为垄作免耕播种机破茬防堵装置的设计提供了技术支持。

       

      Abstract: The residues cutting and ridge cleaning equipment of ridge-tillage planter are important working parts which can prevent no-tillage planter from clogging and ensure good quality of seeding. While ridge cleaning equipment is in operation, the residues often fall onto the neighboring ridge instead of falling into the furrow. So, the factors influenced the motion trace of residues are needed to be analyzed, optimized for making residues fall into the furrow. For this, how to use Pro/E software to establish the simulation model of residues cleaning equipment was introduced, and the simulation analysis of its ridge cleaning was done in this paper. The analysis results showed that the main parameters influenced the motion trace of residues is forward speed v of residue cutting and ridge cleaning equipment, oscillatory speed of level disc and the open-close angle of the back wings of ridge cleaning equipment. By taking different a and simulating the level disc and observing the motion of residues ,the better location of residues was achieved when v=1.153 m/s and a?=60°~120°,which provided the technology support to the design of residues cutting and ridge cleaning equipment of ridge and no-tillage planter.

       

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