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半喂入聯(lián)合收獲機同軸差速脫粒滾筒設(shè)計與試驗
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浙江省科技重大專項資助項目(2007C12SA700013)


Design and Test on Coaxial Differential Threshing Rotor of Head-feed Combine Harvester
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    摘要:

    針對半喂入聯(lián)合收獲機收獲超級稻和難脫粒的粳稻時脫粒不凈引起損失的問題,設(shè)計了半喂入同軸差速脫粒滾筒,并與單速脫粒滾筒進行了脫粒對比試驗,對各種脫出物料的實測數(shù)據(jù)用Matlab軟件建立了3D圖像及其數(shù)學(xué)模型。結(jié)果表明:差速滾筒未脫凈籽粒約0.06%,比單速滾筒降低61.25%;3D圖像顯示差速脫粒的各種脫出物料在篩面上分布比單速脫粒均勻。半喂入同軸差速脫粒裝置集高、低轉(zhuǎn)速對脫粒性能的有利作用于一體,能較好解決半喂入聯(lián)合收獲機收獲超級稻和粳稻時脫粒不凈引起的損失,并使損失率、破碎率和含雜率等性能指標(biāo)都達到較優(yōu)水平。

    Abstract:

    Aiming at the threshing loss during super-rice and round-grained rice harvesting, the head-feed coaxial differential rotor was designed. The threshing test between the different speed and single speed rotor was preceded. The 3-D image and mathematical modal were built by Matlab on the basis of measured data of mixture and its compositions. The results showed that the 0.06% grains were not threshed clearly by differential rotor, which reduced by 61.25% compared to the single speed one. The 3-D image showed that uniform distribution of mixture and its compositions along on sieve was better than the single speed one. The coaxial differential threshing rotor set the benefit of high-speed and low-speed in one, which can solve the problem of the threshing loss during super-rice and round-grained harvesting and reduce the loss rate, the damage rate and impurity loss.

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陳霓,余紅娟,陳德俊,龔永堅,張正中.半喂入聯(lián)合收獲機同軸差速脫粒滾筒設(shè)計與試驗[J].農(nóng)業(yè)機械學(xué)報,2011,42(Z1):39-42. Chen Ni, Yu Hongjuan, Chen Dejun, Gong Yongjian, Zhang Zhengzhong. Design and Test on Coaxial Differential Threshing Rotor of Head-feed Combine Harvester[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(Z1):39-42.

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