猪舍轨道式自动送料系统设计与试验

Design and Experiment of Orbital Feeding System for Pig Housing

针对现有绞龙和塞盘等管道式输送粉状饲料方式存在残留量不易清理、送料量计量困难等问题,设计了一种由称量平台、送料车、平移轨道、高架轨道和控制系统组成的饲料自动输送系统。通过研究在送料车遍巡舍内圈栏位的基础上舍内圈栏与目标巡航时间的关系,确定送料车和轨道等硬件设计方案以及技术参数,结合称量传感器负反馈控制方法,设计WiFi无线控制系统,实现送料车装料和卸料的自动巡航控制,称量平台自动计量装料量,以及平移轨道机构对接称量平台与舍内双列圈栏轨道。以粉状饲料作为试验材料在中国农业大学上庄试验站进行了现场试验,结果表明:称量系统测量值与实际测量值的相对标准偏差平均值之差小于1%,系统测量值的最大相对标准偏差小于2.5%,满足精确供料要求;自动控制系统能够控制送料车按设计要求完成装料、巡航送料和卸料,具有实际应用价值。

Aiming at the problems of conveying powder feed by spiral springs and plug plates such as the clean of residue and the measurement of feed quantity,an automatic feeding conveying system consisted of weighing platform, feeding vehicle, translational orbit, overhead orbit and control system was designed. The design of feeding vehicle,orbit and parameters were determined by the relationship between the inner pigpen and the cruise time. Combined with the negative feedback control method of weighing sensor,the WiFi wireless control system was designed with Arduino control board. The system can realize automatic cruise control of feeding vehicle＇s loading and unloading,automatic measurement of loading quantity by weighing platform and the joint of weighing platform and the orbits by translational orbit mechanism. The experiment was made with powdery feed at China Agricultural University Shangzhuang Experimental Station. The results indicated that the difference between the relative standard deviation of the weighing system measured value and the actual measured value was less than 1%,the maximum relative standard deviation of the system measured value was less than 2. 5%,and the weighing system had a high degree of accuracy. Additionally,controlled by the system,the feeding vehicle can complete loading,cruising and unloading functions according to requirements to realize two rows of pigpen feeding. The orbital feeding system had practical application value for precise feeding in the pig house.