基于STM32单片机的方形喷洒域装置的设计与试验  

Design and experiment of square spray field irrigation device based on STM32 microcontroller

作　　者：刘佳[1] 邓健 杨启良[1] 秦伟 LIU Jia;DENG Jian;YANG Qiliang;QIN Wei(School of Agriculture and Food,Kunming University of Science and Technology,Kunming,Yunnan 650500,China;School of Mechanical Engineering,Xinjiang University,Urumqi,Xinjiang 830047,China)

机构地区：[1]昆明理工大学农业与食品学院,云南昆明650500 [2]新疆大学机械工程学院,新疆乌鲁木齐830047

出　　处：《湖南农业大学学报（自然科学版）》2021年第1期81-88,共8页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家自然科学基金项目(51979134、51779113);云南省高校重点实验室建设计划项目(KKPS201923009)。

摘　　要：针对已有方形喷洒域喷头存在喷灌均匀系数低、方形程度差、转动过程精度不高等问题,设计了一种适用于方形喷洒的新型喷灌装置。该装置主要由控制模块、工作模块和喷头组成;通过滚子与空间凸轮的接触,调节喷头仰角,改变射程,实现方形区域的喷洒;采用单片机控制装置的旋转速度,以提高喷灌均匀度。在工作压力0.20 MPa、流量1.30 m^3/h条件下进行性能测试,结果装置喷洒19 m×19 m区域的方形系数可达94.55%,组合喷灌均匀系数为86.70%,方形区域上的实际未喷洒区域仅占方形总面积的7.88%。A new sprinkler irrigation device suitable for square spray field has been proposed,in aim to solve the problems such as low uniformity coefficient of spray irrigation,irregular irrigation area and low accuracy of rocker arm in the process of rotation caused by the sprinkler with square spray field.The square spray field irrigation device mainly composed of control module,operating module and sprinkler.The spraying in square spray field is realized by adjusting the jet angle of sprinkler flow through the contact of the roller and spatial cam mechanism.The sprinkler irrigation uniformity is improved by controlling the angular velocity of rotation of sprinkler with microcontroller.Under the operating pressure of 0.20 MPa and the capacity of sprinkler of 1.30 m^3/h,the performance testing results revealed that the square coefficient with the square spray field of 19 m×19 m was as high as 94.55%,with the uniformity coefficient of sprinkler irrigation 86.70%,while the actual unsprayed field on the square field accounted for 7.88%of the total square area.

关 键 词：单片机 空间凸轮 方形喷洒域 喷灌均匀系数 

分 类 号：S220.2[农业科学—农业机械化工程]