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水稻直播機氣吹輔助勺輪式排種器設(shè)計與試驗
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“十二五”國家科技支撐計劃資助項目(2012BAD14B13)和安徽省農(nóng)業(yè)機械管理局富民工程科技攻關(guān)資助項目(2014)


Design and Experiment on Rice Hill Seeder with Air-blowing Special Hole and Scoop-wheel
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    摘要:

    為滿足水稻直播精量排種的需要,在勺輪式排種器基礎(chǔ)上,設(shè)計了一種氣吹異形孔勺輪式水稻穴播排種器。在確定最佳排種轉(zhuǎn)速與最佳清種方式情況下,用4種不同型孔的排種盤,與不同氣吹壓力和氣吹角度相配合,對培兩優(yōu)98與Ⅱ優(yōu)8006,2種雜交水稻進(jìn)行穴播排種試驗。試驗結(jié)果表明:2種稻種在4個型孔下的各項排種指標(biāo)均達(dá)穴播要求,坡狀型孔的穴粒合格率和穴距合格率兩項指標(biāo)在4種型孔中最優(yōu),梯形孔的穴距標(biāo)準(zhǔn)差和穴距變異系數(shù)兩項指標(biāo)在4種型孔中最優(yōu)。氣吹壓力范圍在1~1.05kPa之間,氣吹角度在40°~45°之間,4種型孔穴粒合格率可達(dá)93%以上,穴距合格率可達(dá)92%以上。通過水稻直播機樣機田間試驗,驗證了排種器和直播機設(shè)計參數(shù)的準(zhǔn)確性和整機傳動的可行性,排種性能滿足水稻穴直播的農(nóng)藝要求。

    Abstract:

    In order to meet the need of precision rice drilling, the rice hill seeder was designed with the air-blowing special hole and scoop-wheel based on the scoop-wheel seeder. With the optimum metering speed and optimum cleaning way, the seeding plates with four kinds of seeding holes were matched with different air-blowing pressures and air-blowing angles. The seeding tests were conducted on two kinds of hybrid rice, Peiliangyou98 andⅡyou8006. The test results indicated that the seeding performance of both two kinds of rice met the hill seeding requirements with the different seeding holes. The successful rate of hill seed number and hill distance of wavy shape hole were better than the others. The standard deviation and variation coefficient of hill distance in trapezoidal hole were better than the others. In addition, the qualified rate of hill seed number achieved above 93% and hill distance achieved above 92% under the condition of the air blowing pressure of 1~1.05kPa, and the air blowing angle of 40°~ 45°. The whole farmland experiments on prototype verified the accuracy of designed parameters for seed sowing device. The metering performance could meet the agronomic requirements of rice direct seeding.

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曹成茂,秦 寬,王安民,孫 燕,周 敏,李威亞.水稻直播機氣吹輔助勺輪式排種器設(shè)計與試驗[J].農(nóng)業(yè)機械學(xué)報,2015,46(1):66-72. Cao Chengmao, Qin Kuan, Wang Anmin, Sun Yan, Zhou Min, Li Weiya. Design and Experiment on Rice Hill Seeder with Air-blowing Special Hole and Scoop-wheel[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(1):66-72.

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  • 收稿日期:2014-08-18
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  • 在線發(fā)布日期: 2015-01-10
  • 出版日期: 2015-01-10