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油菜鋪膜打孔播種機(jī)滾動(dòng)式割膜打孔裝置設(shè)計(jì)與試驗(yàn)
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云南省創(chuàng)新引導(dǎo)與科技型企業(yè)培育計(jì)劃項(xiàng)目(202204BI090020)和財(cái)政部和農(nóng)業(yè)農(nóng)村部:國(guó)家現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系項(xiàng)目(CAR-S-12)


Design and Experiment of Rolling Film Cutting and Hole Punching Device for Rapeseed Seeder with Film Mulching and Perforating
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    摘要:

    針對(duì)現(xiàn)有油菜播種膜上成穴打孔裝置實(shí)際作業(yè)過程中存在膜孔尺寸偏大、形狀不規(guī)則及膜孔粘連等問題,基于滑切原理設(shè)計(jì)了一種滾動(dòng)式割膜打孔裝置,確定了打孔裝置和仿形機(jī)構(gòu)結(jié)構(gòu)參數(shù),建立了打孔裝置運(yùn)動(dòng)學(xué)模型,分析確定了影響膜孔長(zhǎng)度的主要因素及其取值范圍。運(yùn)用DEM-MFBD耦合仿真,采用三因素三水平回歸正交試驗(yàn),以整機(jī)前進(jìn)速度、縱向刀片長(zhǎng)度、縱向刀片高度為試驗(yàn)因素,膜孔長(zhǎng)度和孔距差值為評(píng)價(jià)指標(biāo)進(jìn)行仿真試驗(yàn),結(jié)果表明:各因素對(duì)膜孔長(zhǎng)度的影響由大到小依次為縱向刀片長(zhǎng)度、整機(jī)前進(jìn)速度、縱向刀片高度,各因素對(duì)孔距差值的影響由大到小依次為縱向刀片高度、整機(jī)前進(jìn)速度、縱向刀片長(zhǎng)度。整機(jī)前進(jìn)速度為3.3km/h、縱向刀片長(zhǎng)度為34mm、縱向刀片高度為31mm時(shí),膜孔長(zhǎng)度為44.78mm、孔距差值為0.64mm,打孔性能較優(yōu)。以較優(yōu)參數(shù)組合開展了滾動(dòng)式割膜打孔裝置田間試驗(yàn),結(jié)果表明膜孔平均長(zhǎng)度為43.15mm,膜孔長(zhǎng)度穩(wěn)定性變異系數(shù)為3.86%,平均孔距差值為-1.32mm,膜孔孔距誤差為4.22%,滿足油菜播種割膜打孔要求,該研究可為油菜鋪膜播種機(jī)割膜打孔裝置提供參考。

    Abstract:

    In view of the problems existing in the actual operation process of the film hole forming device for rapeseed seeding, such as the excessive size of the hole, the irregular shape of the hole and the adhesion of the hole, etc., based on the principle of sliding cutting, a rolling film cutting and hole punching device was designed, the structural parameters of the perforating device and profiling mechanism were determined, and the kinematics model of the perforating device was established, the main factors affecting the film hole length and the range of its value were determined. Using DEM-MFBD coupling simulation, three factors and three levels regression orthogonal test, the simulation test was carried out with the forward speed of the whole machine, the length of the longitudinal blade and the height of the longitudinal blade as the test factors, the film hole length and the hole distance difference as the evaluation index. The results showed that the primary and secondary order of the influence of each factor on the length of the film hole was the length of the longitudinal blade, the forward speed of the whole machine and the height of the longitudinal blade. The primary and secondary order of the influence of each factor on the hole spacing difference was the height of the longitudinal blade, the forward speed of the whole machine and the length of the longitudinal blade. When the forward speed of the whole machine was 3.3km/h, the length of the longitudinal blade was 34mm, and the height of the longitudinal blade was 31mm, the film hole length was 44.78mm, and the hole distance difference was 0.64mm, the punching performance was better. The field experiment of rolling film cutting and punching device was carried out with the optimal parameter combination. The results showed that the average length of the film hole was 43.15mm, the coefficient of variation of the stability of the film hole length was 3.86%, the average hole distance difference was -1.32mm, and the film hole distance error was 4.22%, which met the requirements of film cutting and drilling for rapeseed sowing. The research result can provide reference for film cutting and punching device for rapeseed sowing.

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廖慶喜,裴立民,張青松,王磊,羅湛程,符明聯(lián).油菜鋪膜打孔播種機(jī)滾動(dòng)式割膜打孔裝置設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2023,54(9):85-98. LIAO Qingxi, PEI Limin, ZHANG Qingsong, WANG Lei, LUO Zhancheng, FU Minglian. Design and Experiment of Rolling Film Cutting and Hole Punching Device for Rapeseed Seeder with Film Mulching and Perforating[J]. Transactions of the Chinese Society for Agricultural Machinery,2023,54(9):85-98.

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  • 收稿日期:2023-02-10
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  • 在線發(fā)布日期: 2023-09-10
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