青贮添加剂喷洒装置自动控制仪的研制

Development of an Automatic Controller for Spray Equipment of Silage Additives

介绍了一种用于实现铡草机和青贮添加剂喷洒装置相联动的自动控制仪的工作原理和硬、软件设计。该控制仪可根据铡草机实时喂入量的大小自动调节喷洒装置的喷洒量 ,以保持草液比基本不变。测试表明 :该控制仪喂入量测试误差小于 (等于 )± 13%、喷洒量控制误差小于 (等于 )± 2 %、喷洒均匀性误差小于 (等于 )± 8%、控制周期小于 (等于 ) 1.5

This paper introduces an automatic controller for a chaff cutter coupled with a spray equipment of silage additives. The controller can automatically regulate the flow rate of the spray equipment according to the real time feeding of the chaff cutter so that the chaff liquid ratio keep under an optimum value. By testing the working current,the output speed of the driving motor and the displacement of the feeding rollers, the controller can monitor the real time feeding of the chaff cutter, calculate the corresponding flow rate according to the optimum chaff liquid ratio, and control the stepping motor to adjust the flow regulating valves to realize the flow regulation. The design of the hardware and software are also introduced. The results of the performance tests are as follows: the measuring error of feeding ≤±13%; the control error of flow rate ≤±2%; the uniformity error of spraying ≤±8%; the regulation period≤1.5 seconds.