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基于電容檢測(cè)技術(shù)的蒜種鱗芽扶正裝置設(shè)計(jì)與試驗(yàn)
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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(CARS-24-D-01)、泰山產(chǎn)業(yè)領(lǐng)軍人才工程項(xiàng)目和中國(guó)博士后科學(xué)基金面上項(xiàng)目(2019M662410)


Design and Test of Garlic Clove Orientation Device Based on Capacitive Detection Technology
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    摘要:

    針對(duì)傳統(tǒng)機(jī)械方式鱗芽扶正率低、可靠性差等問(wèn)題,提出了一種基于電容檢測(cè)技術(shù)的蒜種鱗芽定向方法,搭建了相應(yīng)的鱗芽檢測(cè)與扶正裝置,并對(duì)其結(jié)構(gòu)和運(yùn)行參數(shù)進(jìn)行了優(yōu)化?;贏NSYS電場(chǎng)分析驗(yàn)證了方法的可行性,基于EDEM仿真平臺(tái)進(jìn)行了接播裝置結(jié)構(gòu)的優(yōu)化。結(jié)果表明,當(dāng)接播裝置底面夾角、短軸半徑、長(zhǎng)軸半徑分別為80°、22.99mm和27.79mm時(shí),裝置性能最優(yōu),理論直立率為96.6%,物理試驗(yàn)驗(yàn)證了優(yōu)化結(jié)果的可靠性。以極板參數(shù)為試驗(yàn)因素,以信噪比為試驗(yàn)指標(biāo),開(kāi)展極板尺寸優(yōu)化試驗(yàn)。結(jié)果表明,極板參數(shù)為45mm×8mm×0.10mm時(shí),裝置性能最優(yōu)。以金鄉(xiāng)、蒼山蒜種為試驗(yàn)對(duì)象,開(kāi)展樣機(jī)試驗(yàn),正芽率為95.0%,滿足大蒜播種要求。

    Abstract:

    In order to solve the problem of low upright rate of traditional machinery, a method for determining the garlic clove orientation based on capacitive detection technology was proposed. There were differences in morphological structure between the bud and the root: under the same width, the volume of the bud was smaller than that of the root. The feature was exploited and converted to an average dielectric constant difference to determine the orientation of the garlic clove by detecting the capacitance. The feasibility of the method was verified based on the electric field analysis of ANSYS in the research process. In addition, the corresponding bud adjustment device was designed. Orthogonal tests took the short axis radius, long axis radius, and bottom angle of the device as the test factors and the upright rate as the test indicators, and the test data were analyzed by Design-Expert 11.1.2.0 software to obtain the order of influence of each factor on the index value. The results showed that when the bottom angle, short axis radius, and long axis radius were 80°, 22.99mm, and 27.79mm, respectively, the device performance was optimal and the theoretical upright rate was 96.6%. The test verification of the optimized factors was basically consistent with the optimized results. With the pole plate parameter as the test factor and the signal to noise ratio as the test indicators, the test data showed that the device performance was optimal when the pole plate parameter was 45mm×8mm×0.10mm. The prototype test was carried out with Jinxiang and Cangshan garlic cloves, and the qualified rate was 95.0%, which met the requirements of garlic sown. The research result can provide support for the application of capacitance detection technology in precision sowing equipment.

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侯加林,方立志,李玉華,吳彥強(qiáng),周凱.基于電容檢測(cè)技術(shù)的蒜種鱗芽扶正裝置設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2023,54(4):63-72. HOU Jialin, FANG Lizhi, LI Yuhua, WU Yanqiang, ZHOU Kai. Design and Test of Garlic Clove Orientation Device Based on Capacitive Detection Technology[J]. Transactions of the Chinese Society for Agricultural Machinery,2023,54(4):63-72.

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  • 收稿日期:2022-08-04
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  • 在線發(fā)布日期: 2022-10-13
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