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1、題目新型手推式割草機設(shè)計院(系)專業(yè)學(xué)生姓名學(xué)號指導(dǎo)教師職稱導(dǎo)師工作單位起訖日期摘要該設(shè)計是一種由小型汽油機帶動刀片運動切割草株,人工推動機具前進完成作業(yè)的草坪修剪機。該機主要由發(fā)動機,傳動機構(gòu),旋刀,機殼支撐座和集草袋等組成。采用XY168F發(fā)動機,最大輸出功率:5.5HP/3600rpm。工作裝置為一條形割草刀直接裝在發(fā)動機的輸出軸上,作業(yè)時高速旋轉(zhuǎn)切割草莖。將割草刀的非刃口做成風(fēng)機葉片,割草作業(yè)時對地面形成一定的真空降草莖吹成直立狀態(tài),便于切割并與罩殼相結(jié)合形成渦流將割下來的碎草送入集草裝置。護罩為渦流形狀,是草坪修剪機的支架,為沖壓件,用于保護操作者和行人安全,并形成護罩內(nèi)
2、渦流,給切下物導(dǎo)向和安裝行走裝置,發(fā)動機和工作裝置。集草裝置為集草袋,主要用于草坪切下物的收集,安裝于草坪修剪機的后部,并可以容易的安裝或拆下。行走裝置為行走輪和割草裝置高度調(diào)節(jié)裝置組成。行走輪通過一個手柄可以相對草坪修剪機的護罩進行調(diào)節(jié),將輪子升高,割草機下降,割草高度降低,反之割草高度上升。關(guān)鍵詞割草機;刀具;傳動軸;罩殼及結(jié)構(gòu)設(shè)計AbstractThisdesigninonekindcutsgrassbythesmallgasolineengineimpetusbitmovement,theartificialimpetusmachinesadvancecompletesth
3、eworklawnpruningmachine.Thismachineismainlymadeupofengine,Transmissionsystem,Turningtool,Cabinet,Compositionsupportingturnandcollectingstrawbagandsoon.Theengine:YX168F,Peakpoweroutput:5.5HP/3600rpm.Theinstallmentofworkisaknifeoflinearitycutsgrassfixingdirectontheoutputshaftoftheengine,Whenrevo
4、lvingathighspeeditcutsthegrass.Thenon-cuttingedgeoftheknifeismadeuptotheairblowerleafblade,whenworkingitformsthecertainrealgeneralgrassstalktothegroundtoblowstandserectthecondition.Isadvantagesforcutsandunifieswiththelaggingwithformthegarrulousgrasswhichtheturbulentflowwillcuttosendinthecollec
5、tiongrassinstallment.Theguardshieldistheturbulentflowshape.Isthelawnpruningmachinesupport.Forpressingpart,withbyprotectstheoperatorandthepedestriansafety.andformsintheguardshieldtheturbulentflow.Forcutstheguidanceandtheinstallmentwalkstheinstallment,Engineandworkinstallment.Thecollectiongrassi
6、nstallmentisthecollectionstrawbag.Mainlyuseinthelawncutsthecollection.Installmentinlawnpruningmachinebehind,andmaytheeasyinstallmentordismantles.Walkstheinstallmenttowalkturnandcutsgrassthealtitudemixturecontrolinstallmentcomposition.Walksturnmaytherelativelawnpruningmachineguardshieldcarryont
7、headjustmentthroughahandle.Elevatesthewheel,thegrasscutterdrops,cutegrassreduceshighly.Otherwisecutsgrassonhighly.Keywords:grasscutter;reamer;transmissionshaft;mantle;designofstructure目錄第一章總體設(shè)計...........................................