Authors

Abstract

This paper proposed a supplemental feeding pusher based on beef cattle's auxiliary feeding needs to solve the traditional feeding mode of manual work, labor intensity, and inconsistent manual work standards. Firstly, the conveyed feed particles movement process was established as a motion model and the basis of the design parameters of the screw conveyor was explained. ANSYS static analysis module was used to ensure that the structural parameters of the discharging device were reasonable, ANSYS vibration modal analysis module was used to verify the frame strength and stability. According to the theoretical design of the trial prototype, the control system with STM32F103RE microcontroller as the core was carried out. Finally, the orthogonal test was conducted with the screw shaft speed, sweeping roller brush height, and traveling speed as test factors; different parameters were set to verify the effect of supplemental feeding and pushing, and parameter optimization of the test results was carried out using Design-Expert software. The optional combination of working parameters was determined to be the feeding screw shaft speed 188 r/min, the sweeping roller brush speed 160 r/min, and the work speed 0.26 m/s. The test demonstrated that the residual feed width was 0.73 m, and the transverse coefficient of variation was 14.9%, which could satisfy the needs of auxiliary feeding for beef cattle. This study reduced feed waste and met the cattle feeding needs to the greatest extent, and it could provide a reference for auxiliary feeding machinery.

Abstract in Chinese

为解决传统饲喂方式以人工作业为主、劳动强度大、作业标准不统一且效率低的问题，本文基于肉牛辅助饲喂需求设计了一种的补饲推料机。首先，对输送的饲料颗粒运动过程建立运动模型并说明螺旋输送装置设计参数依据，利用ANSYS静力学分析模块确保下料装置结构参数合理，并利用ANSYS振动模态分析模块验证机架强度和稳定性；根据理论设计试制样机，对以STM32F103RE单片机为核心的补料清扫控制系统进行了设计。最后，以螺旋轴转速、清扫滚刷高度、行驶速度为试验因素进行正交试验，设置不同参数验证补饲推料效果，使用Design-Expert软件对试验结果进行参数优化，结果表明，当送料螺旋轴转速为188 r/min，清扫滚刷转速为160 r/min，行进速度为0.26 m/s时，余料幅宽为0.73 m，横向变异系数为14.9%，能够满足肉牛辅助饲喂的需求该研究减少了饲料的堆积浪费，最大程度上满足动物的采食需求，可为辅助饲喂机械的设计优化提供参考。