Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/35611
標題: 有機肥深層施肥機掘溝鏈條掘削特性之研究
Study on the Trenching Characteristics of Excavating-Type
作者: 翁郁凱
Wong, Yue-Kai770
關鍵字: compost;有機肥;trenching;subsoil fertilizing;掘溝;深層施肥
出版社: 農業機械工程學系
摘要: 
Trenching-type applicator is a suitable machine to
distribute compostin orchards. To determine the performance
of this fertilizer applicator,the trenching characteristics
should be evaluated. The objective of thisstudy is to
establish the relationships among thetrenching resistance,
bladespeed and cutting thickness of soil. Experimentswere
conducted in a soil binin laboratory. The soil is classified as
sandyclay loam, its moisture contentand penetration resistance
are at 14-16%(d.b.)and 16-20kgf/cm^2, respectively.The ranges
of blade speed in thisexperiment are 80, 100, 120, 140 and
160cm/sec and cutting thickness ofsoil are 5, 10, 15 and 20
mm. Results showthat the resistance increased at
adecreasing rate while the cuttingthicknessis increased.
Meanwhile, thecutting resistance increased as bladespeed is
increased in various cuttingthickness. An optimization result,
as thepower requirement is 3.6 PS, showsthat the field
capacity may reach maximumwhen the speeds of applicator
andexcavating chain are 15 and 149 cm/sec,respectively.

利用掘溝式施肥機來從事果園有機肥之施用,為增加施肥效果與節省
勞力的方法之一。而研製掘溝式施肥機之前須先了解掘溝鏈條的掘削特性
,期能使施肥機與掘溝鏈條之作業速度能得到最佳的搭配,以提高施肥機
的田間作業能量。 本研究建立了一試驗土槽,藉由單支刀對土壤的切
削試驗及整組鏈條的排土試驗,來建立掘削速度、掘削厚度對掘削阻力的
關係。試驗所使用的土壤為砂質黏壤土,試驗進行中土壤的含水率維持
在14-16%(d.b.), 土壤硬度則在SRII貫穿阻力16-20kgf/cm^2之間,在切
削速度為80、100、120、140、160 cm/sec及切削厚度為5、10、15、20
mm的組合下進行試驗。結果顯示切削阻力與排土阻力均會隨著切削與排土
厚度增加而增加但阻力的增量有遞減之趨勢;切削阻力亦將隨著切削速度
增加而增加,排土阻力則會隨速度之增加而降低,但在不同的試驗厚度會
有不同的趨勢,因此速度對阻力之關係尚有待進一步研究探討。當掘削動
力設定為3.6PS,理論上車行速度與鏈條線速度各為15cm/sec及149cm/sec
時可得最高之田間作業能量。
URI: http://hdl.handle.net/11455/35611
Appears in Collections:生物產業機電工程學系

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