基于EDEM的笼养种鸭精准饲喂器的设计与试验
EDEM-based design and test of precision feeder for caged breeder ducks
唐诗杰 1谷月 1李传珍 1王树才2
作者信息
- 1. 华中农业大学工学院,武汉 430070
- 2. 华中农业大学工学院,武汉 430070;农业农村部长江中下游农业装备重点实验室,武汉 430070
- 折叠
摘要
为解决目前笼养种鸭饲喂系统供料量不精确、饲喂过程中个体饲喂量可控程度较低导致的不利于种鸭育种选育研究的问题,设计了一种叶片式颗粒饲料饲喂器.分析饲喂器充料排料原理以及核心工作部件参数,以饲料通过间距、排料叶片螺旋升角、叶片转速为试验因素,并以单位时间饲喂器饲料排量的变异系数为评价指标建立三因素三水平正交试验,并结合实际养殖需求,分析各因素的影响大小以及其最优组合.仿真结果显示,各参数对排料均匀性的影响大小依次为饲料通过间距、排料叶片螺旋升角、叶片转速;当饲料通过间距为9.0 mm、叶片螺旋升角为71.5°、叶片转速为58.4 r/min时,饲喂器的排料变异系数有最小值18.66%.在最优参数组合下,饲喂器排料性能台架试验结果显示,饲喂器排料变异系数为18.74%,排料速度为109.26 g/s,排料预设量与实际量的最大相对误差为3.07%,满足种鸭供料需求.
Abstract
A vane type pellet feeder was designed to solve the problems of inaccurate feeding quantity of the feeder system for current cage breeder ducks and the low degree of controlling individual feeding amounts during feeding process adverse to the breeding and selection of breeder ducks.A three factor and three level orthogonal experiment was established based on the experimental factors of feed passage pitch,blade spiral lift angle and blade speed,and the coefficient of variation of feed discharge per unit time of the feeder as evaluation indicators by analyzing the feeding and discharging principles of the feeder and the pa-rameters of its core working components.The order of influence and optimal combination of various factors based on actual breeding needs were analyzed.According to the results of simulation,the primary and sec-ondary order of the influence of each parameter on the uniformity of the discharge was the passing pitch of feed,spiral rising angle of discharge blade,and the speed of blade.When the pitch of feed passed through a spacing of 9.0 mm,the spiral rising angle of discharge blade was 71.5°,and the speed of blade was 58.4 r/min,the minimum discharge coefficient of variation of the feeder was 18.66%.The results of a bench test conducted to verify the discharge performance of the feeder under the optimal combination of parame-ters showed that the coefficient of variation of the feeder discharge was 18.74%,the discharge speed was 109.26 g/s,and the relative error between the preset amount of discharge and the actual amount of dis-charge was 3.07%,meeting the feeding needs of caged breeder ducks.
关键词
笼养种鸭/精准饲喂器/颗粒饲料/饲喂装置/均匀性Key words
caged breeder ducks/precision feeder/pelleted feed/feeding devices/uniformity引用本文复制引用
出版年
2024
NETL
NSTL
万方数据