Design Of Control System And Experimental Study On The Spraying Machine For Deratization

In recent years, repeated outbreaks of rodent damage caused serious damage to Grassland in China. The bait spraying machine is a kind of grassland rodent machinery which is designed for meeting the requirement of positioned and quantitative spray of the bait particles, and is also of important significance to the grassland rodent control and grassland degradation. The productivity of deratization will be directly affected by the performance (capability) of the bait spraying machine. In the process of its operation, the fall feeder is always blocked and the baits-metering device is always out of nimbleness. It has a serious impact on the normal operation of the bait spraying machine without timely discovering and eliminating these problems.In order to solve the problems above and improve the overall working performance of the bait spraying machine, the paper accomplished a kind of device that be used in the bait spraying machine, the design of the hardware electric circuit, the design of the software procedures and the design of the manual remote control system and so on. The automatic control system is an open-loop system which was designed according to electromechanical integration. The monitoring agency of the automatic control system is consisted of the hall sensor and pressure sensor, it measure the speed of fan main shaft and the spindle torque of fall feeder in real time. And the single chip microcomputer in the system could automatically carry on the calculation according to collected information and output control information. The automatic control system did the work of real-time monitoring of the working status of the bait spraying machine, and made exact warning when the machine was on the blink. The manual remote control system is used remote control technology, the staff could make up their minds to spray the baits or not anytime as needed in the course of work, which is convenient for the maintenance of the equipments.Finally this kind of control device install on the bait spraying machine, and then commissioning and performance test was done. Through the comparison and analysis for the test results of statistics, the main conclusions are as follows:the combination of the two control system not only solves some problems which was the insufficient of bait spraying machine when it was used in grassland, also improves the work performance, These studies has the profound significance to realizing intelligent mechanical.