薰衣草收割机切割高度可调节机构的设计及运动仿真

Motion Simulation and Design of Lavender Harvester Cutting Height Adjustment Mechanism

薰衣草生长期长达十几年,长期农机入地作业造成了地面高低不平,既要花穗收割干净,同时不能伤害保留的茎秆,确保薰衣草后续的生长。为此,设计了高度可调节机构使薰衣草切割后的茎秆保留高度一致。同时,对仿形机构进行了受力分析,确定了影响仿形性能的初始作用角度α、上仿形角α1、连杆长度L1。根据初始工作角和最大下仿形量,设计出的仿形杆长度为440mm,最大上仿形量为214mm。最后,应用仿真分析软件Adams进行运动模拟,结果表明:仿形机构可实现上下仿形和翻转,上下仿形量可达到2 9 0 mm,翻转角度达到9 0°,满足薰衣草收割机的切割仿形量。该机构为研制薰衣草收获机的研制提供了依据。

Lavender can grow for ten years, machines work into the ground long-term resulted uneven ground. In order to ensure that lavender harvesting machine cut lavender stems reservations highly consistent, we should spikes harvest clean, while not hurt the rest of the stem to ensure that lavender subsequent growth, this paper designed harvester cutting height adjustment mechanism which make stem keeping same height. The profiling performance parameters were determined through force analysis. According to the initial work angle and the maximum amount under the profile designed contoured rod length is 440 mm, the maximum amount of the profiling 214 mm. Finally, Adams software application for motion simulation optimization, by motion simulation shows that profiling mechanism can realize up and down and rotate, top and bottom profiling could reach 290 mm, rotate angle could reach 90°, to meet the cut like lavender harvester shaped volume. The agency for the development of lavender harvesting machine provided gist.