环保型高地隙烟草喷雾机设计与试验

Environmental Protection Type High Clearance Tobacco Sprayer Design and Test

针对移栽后烟草在不同生长期植株形态存在显著差异,导致一般植保机械病虫害防治效果差的问题,设计了集喷杆式喷雾和隧道式喷雾两位一体的烟草喷雾机。该喷雾机由机架滑移变形机构、机架收拢机构、机架升降装置、药液喷洒系统和药液收集循环系统组成。滑移变形机构通过链条传动和变角伸缩机构改变喷雾机架形态,实现喷杆式和隧道式两种药液喷施模式;机架收拢机构实现机器工作态和运输态两种机架形态的变换。药液收集循环系统将烟叶滴落的药液经滤网过滤汇集后,再将残余药液泵回至药液箱,从而实现药液高效利用,并基于PLC的控制系统完成对喷雾机的机架变形和植保作业的控制。同时,通过大田试验验证了该机在烟草上作业的有效性。

To solve the problem that after transplanting tobacco plants growing in significant different forms lead to poor pest control using traditional plant protection machinery , this paper design a two-spray-mode-in-one tobacco sprayer which combined boom spray and tunnel spray sprayer .The sprayer is consisted of frame slip deformation mechanism , frame collapsed mechanism , frame lifting devices , liquid spray system and liquid collection and recirculation system . Frame slip deformation mechanism changes the form of spray frame through chain transmission and variable angle mecha -nism to achieve spray mode from boom spray to tunnel spray and on the contrary change .Frame collapsed mechanism is to achieve the transformation of machine from working condition to transport condition .After the liquid recirculation sys-tem collecting and filtering the tobacco liquid dripped from tobacco plants , and then the residual liquid is pumped back to the tank , in order to achieve efficient use of the liquid .The frame deformation and plant spraying are controlled by PLC based control system .Field experiments verify the effectiveness of the two-spray-mode-in-one tobacco sprayer .