| 履带自走式双隧道喷雾机设计与试验 |
| |
| 引用本文： | 殷慧子,奚小波,陈金楚,张翔,徐金,张瑞宏.履带自走式双隧道喷雾机设计与试验[J].中国农机化学报,2022,43(9):73. |
| |
| 作者姓名： | 殷慧子 奚小波 陈金楚 张翔 徐金 张瑞宏 |
| |
| 作者单位： | 1. 扬州大学机械工程学院，江苏扬州，225127； 2. 扬州大学农学院，江苏扬州，225009；
3. 江苏银涛智能装备有限公司，江苏泰州，225311
|
| |
| 基金项目： | 泰州市科技项目（TN201913） |
| |
| 摘 要： | 针对篱架型作物施药环节存在雾滴飘失、农药利用率低等问题，设计一种履带自走式双隧道喷雾机。分析机具工作原理并设计履带行走底盘，底盘最小离地间隙289 mm。设计风送系统可增加篱架型作物雾滴沉积量及减少雾滴飘失作用；设计隧道幅宽伸缩装置，能够满足不同作物施药宽度，幅宽伸缩范围为600~1 200 mm。对喷头数量及布局进行设计，基于EDEM-Fluent耦合仿真研究不同幅宽下雾滴颗粒状态，在不同幅宽作业下，有风情况下相较于无风情况下雾滴密集程度高、颗粒运动速度快，更利于雾滴沉积。研制样机并进行田间试验，结果表明，有风情况下雾滴均匀度DR值提升8.45%；有风情况下900 mm幅宽DR平均值为0.85，更接近1，最终，试验结果与仿真结果一致。该研究为隧道喷雾机设计提供新的参考。
|
| 关 键 词： | 隧道喷雾 风送系统 EDEM-Fluent耦合 幅宽 雾滴均匀度 |
Design and experiment of track self propelled double tunnel sprayer |
| |
| Abstract: | In order to solve the problems of fog drop loss and low pesticide utilization rate in the application process of hedge frame crops, a crawler self walking double tunnel sprayer was designed in this paper. The working principle of the machine was analyzed and the crawler chassis was designed. The minimum clearance of the chassis was 289 mm. An air delivery system was designed to increase the amount of fog drop deposition and reduce the droplet drift loss of hedge frame crops. The tunnel width expansion device was designed, which meet the application width of different crops, and the width expansion range was 600-1 200 mm. The number and layout of spray heads were designed. Based on the EDEM-Fluent coupling simulation, the state of fog droplets in different widths was studied. Under different widths, compared with the condition without wind, fog droplets were denser, and particles moved faster, which was more conducive to the deposition of fog droplets. A prototype was developed, and field tests were carried out. The results showed that the DR value of fog droplet uniformity increased by 8.45% under windy conditions. In windy conditions. The average value of DR was 0.85 in 900 mm, which was closer to 1. Finally, the test results were consistent with the simulation results. This study provided a new reference for the design of tunnel sprayers. |
| |
| Keywords: | tunnel spray air supply system EDEM-Fluent coupling width droplet uniformity |
|
| 点击此处可从《中国农机化学报》浏览原始摘要信息 |
| 点击此处可从《中国农机化学报》下载免费的PDF全文 |
|
