离心式变量撒肥机的设计与试验  

Design and performance test of centrifugal type of variable rate fertilizer

作　　者：杨怀君[1] 汤智辉[1] 孟祥金[1] 何义川[1] 

机构地区：[1]新疆农垦科学院机械装备研究所,新疆石河子832000

出　　处：《甘肃农业大学学报》2017年第1期144-149,共6页Journal of Gansu Agricultural University

基　　金：国家科技支撑计划项目(2014BAD06B04-2-3)

摘　　要：【目的】针对有机肥播撒问题,研究设计了一种离心式变量撒肥机,阐述了该机的结构及工作原理.【方法】对影响撒肥效果的各因素进行了正交试验研究.【结果】当机具前进速度为5.5km/h,链板转速为5r/s,撒肥圆盘转速为540r/min时,得到均匀性变异系数为10.2%,作业幅宽为19.3m,施肥量为1 268.97kg/667m2.【结论】前进速度、圆盘转速及链板转速对有机肥抛撒的均匀性变异系数、幅宽和撒肥量均有影响,撒肥圆盘的转速对作业质量影响极显著,其次为链板转速,最后为机组前进速度.[Objective] To develop a kind of the centrifugal variable rate fertilizer for fertilizing organic fertilizer in farmland, and descript the structural characteristics and working principle of the machine. [Method] The effect factors were screened by orthogonal test. [Result] When the forward speed was 5.5 km/h,the rotation rate of disk was 5 r/s,and the rotation rate of harrow-chain was 540 r/min, the coeffi- cient of variation was 10. 2%, the bed width was 19. 3 m, and the fertilizing amount was 1 268. 97 kg/667m2. [Conclusion] Coefficient of variation, bed width and fertilizing amount were influenced by for- ward speed, rotation rate of disk and rotation rate of harrow-chain. The fertilization effect was significantly affected by speed of fertilizing disk, then was rotation rate of harrow-chain, the forward speed of fertilizer had a less effect.

关 键 词：施肥 变量施肥机 正交试验 

分 类 号：S224[农业科学—农业机械化工程]