猪用饲喂器拨片式供料装置机理分析与参数优化  

Mechanism analysis and parameter optimization of unloading paddle device for pig-feeder

作　　者：刘朝贤 王德福[1,2] 黄会男 党春雪 张洪建 LIU Chaoxian;WANG Defu;HUANG Huinan;DANG Chunxue;ZHANG Hongjian(College of Engineering,Northeast Agricultural University,Harbin,Heilongjiang 150030,China;Key Laboratory of Swine Facilities Engineering,Ministry of Agriculture and Rural Affairs,Northeast Agricultural University,Harbin,Heilongjiang 150030,China)

机构地区：[1]东北农业大学工程学院,黑龙江哈尔滨150030 [2]东北农业大学农业农村部生猪养殖设施工程重点实验室,黑龙江哈尔滨150030

出　　处：《江苏大学学报（自然科学版）》2021年第6期661-670,共10页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51405076);国家重点研发计划项目(2016YFD0701301);黑龙江省应用技术研究与开发计划重大项目(GA16B301)。

摘　　要：为提高我国生猪养殖业应用的饲喂器的工作性能,对设计的一种猪用饲喂器拨片式供料装置进行了机理分析与试验.通过对其主要结构的理论分析以及离散元模拟仿真,确定杆绳斜置式破拱单元和拨片式排料单元的结构.在实现稳定排料基础上,以影响其排料性能的主要因素为试验因素,以排料速率和排料均匀性(以变异系数表示)为评价指标进行三因素五水平二次回归正交旋转组合试验,获得最优参数组合.试验结果表明:杆绳斜置式破拱单元实现了料斗内颗粒饲料连续、稳定排料;在填充率为80%,且拨片转速为55.5 r·min^(-1)、出口间距为14.5 mm、排料段最大后倾角为31.5°时,对应排料速率和变异系数分别为166.75 g·s^(-1)和4.39%;饲槽内颗粒饲料分布均匀,饲喂器排料性能较佳.To improve the working performance of feeders in pig breeding industry in our country,a feeding device with unloading paddle for pig-feeder was designed,and the mechanism analysis and physical experiments were conducted.Through the theoretical analysis and discrete element simulation of the main structures of device,the structures of the inclined arch-destroying unit with rods and ropes and the paddle-unloading unit were established.Base on the stable discharge,the main affecting factors on discharge performance of the device with unloading paddle were determined with the rotational speed of paddle,the exit distance and the largest backward angle of paddle as experimental factors.The discharge rate and the discharge uniformity represented by variation coefficient were chosen as evaluative indicators to obtain the optimal parameter combination.The experiment results show that with the filling rate of 80%,the paddle rotational speed of 55.5 r·min^(-1),the exit distance of 14.5 mm and the largest paddle backward angle of 31.5°,the discharge rate and the variation coefficient are 166.75 g·s^(-1) and 4.39%,respectively.The continuous and steady flow without arch formation in the hopper is realized under the action of arch-destroying,and the fine particles in the feeding trough are uniformly distributed,which is conducive to improve feeding performance of feeder.

关 键 词：饲喂器 破拱单元 排料拨片 排料性能 参数优化 

分 类 号：S817.3[农业科学—畜牧学]