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摘 要
本文闡述了目前國內(nèi)油菜收割的現(xiàn)狀，指出了國內(nèi)油菜聯(lián)合收割機研究的成績和存在的問題，并對油菜收割技術(shù)的前景做了展望。通過動力學(xué)原理來設(shè)計作為清選裝置的振動篩，采用雙風(fēng)扇配合振動篩將油菜從雜物中分離，并對清糧的原理進(jìn)行了論證。根據(jù)經(jīng)驗選擇了加密圓孔篩作為篩面。參考實驗?zāi)Ｐ筒ζ鋫鲃臃桨高M(jìn)行了改良，使傳動更加有效、合理。著重對油菜聯(lián)合收割機進(jìn)行了設(shè)計計算。對軸的設(shè)計是根據(jù)彎扭組合強度來進(jìn) 行設(shè)計校核的，在保證強度的條件下盡量節(jié)省材料。軸承和帶輪的設(shè)計和校核嚴(yán)格根據(jù)機械設(shè)計手冊進(jìn)行，強度和壽命都達(dá)到滿足實際生產(chǎn)生活的要求。其他零件非標(biāo)準(zhǔn)見參考實驗機型的設(shè)計，標(biāo)準(zhǔn)件則根據(jù)設(shè)計手冊進(jìn)行設(shè)計，滿足了油菜聯(lián)合收割機對振動篩部分的設(shè)計。
關(guān)鍵詞：油菜；收割機；設(shè)計；振動篩；軸；軸承；帶輪
ABSTRACT
This paper describes the?current situation?of domestic?rapeseedharvest,?pointed out that the?domestic research?of rape combine harvester?and the existing problems,?and?on rape?harvest?technology?prospect.?Through the dynamics?principle in the design of?vibration as the?cleaning device?screen,double?fan?with?vibration?sieve?will?rape?is separated from the?debris,?and the principle of?cleaning?are demonstrated.?According to th.?According to the experience of?selected?as encryption round hole sieve screen surface. The reference model and the improvement of its transmission scheme, the transmission more efficient,?reasonable. The rape combine harvester for the design and calculation. Is to design and check?according to the?bending and torsion?strength?of?shaft design,?ensuring the strength of the?conditions?to?save material.?Bearing?and a belt wheel?design and check?strictly?according to theHandbook of mechanical design,?strength and life?to?meet the actual productionrequirements of life.?Other?parts,?non?standard?design reference?experimentalmodels,?standard parts?according to the?design manual?design,?meet the?rape combine?part of the design?of the vibrating screen.
Keywords:?rape；harvester；design；vibration sieve；shaft； bearing；pulley