Design and Analysis on Compression Mechanism of Small Square Bales of Sugarcane Leaf Baler

With more and more attention paid to comprehensive utilization of agricul-tural biomass resources, environment pol ution caused by large-scale burning of sug-arcane leaves can be effectively avoided, and it is urgent to resolve storage issue of sugarcane leaf. Through referring to the relevant domestic baler models and re-search findings, preliminary design and analysis were conducted on key components compression mechanism of smal sugarcane leaf baler, involving the open compres-sion principle for sugarcane leaf square baler, determination of the crank slider-type compression mechanism and the main parameters such as crank length, compres-sion frequency, feed rate and feed inlet length. Based on SolidWorks software, this paper established the 3-dimensional models of slider-crank type compression mech-anism, and imported it into ADMAMS software for the motion simulation analysis, to establish the foundation for the design and manufacture of subsequent smal sugar-cane leaf square baler prototype.

预置式扭矩扳子正常使用中“第二峰”现象研究

当预置式扭矩扳子给螺纹副施加的扭矩值达到设定值时会发出声响讯号,提醒使用者停止加载。然而,由于人体反应能力、力量差异和惯性的存在,从声响讯号发出至完全停止加载需要一段时间。若扭矩扳子的打滑机构打滑后运动距离不够,容易导致停止加载反应时间不足产生二次加载形成"第二峰"现象。"第二峰"现象在预置式扭矩扳子的使用中普遍存在,且与使用者的性别、年龄、高矮、胖瘦、力量、反应能力、惯性大小、使用经验、熟练程度和扳子设定扭矩值的大小密切相关。规范扳子使用方法、改进扳子打滑机构、加强使用监测是避免或减轻预置式扭矩扳子使用中发生"第二峰"现象的可行办法。