• <mark id="l0x4h"></mark>

      <u id="l0x4h"></u>
        <ins id="l0x4h"></ins>

      1. <bdo id="l0x4h"></bdo>
      2. 油菜基質塊苗移栽機傾斜式分苗裝置設計與穩定性分析
        DOI:
        作者:
        作者單位:

        作者簡介:

        通訊作者:

        中圖分類號:

        基金項目:

        國家油菜產業技術體系專項(CARS-12); 農業部農業科研杰出人才及創新團隊; 湖北省丘陵山區主要農作物機械化生產關鍵技術裝備研發與集成示范


        Design and stability analyses of inclined detach device for rapeseed substrate seedling transplanter
        Author:
        Affiliation:

        Fund Project:

        • 摘要
        • |
        • 圖/表
        • |
        • 訪問統計
        • |
        • 參考文獻
        • |
        • 相似文獻
        • |
        • 引證文獻
        • |
        • 資源附件
        • |
        • 文章評論
          摘要:

          針對傳統移栽機在油菜移栽過程中苗塊易翻倒導致分苗裝置分苗失效的問題,設計了一種適用于油菜基質塊苗移栽機的傾斜式分苗裝置。分析了分苗裝置結構組成與分苗過程,確定了分苗裝置主要結構參數;構建了分苗過程依次連續輸送和夾持分離階段苗塊力學模型,依據動力學分析明確了影響分苗穩定性的主要因素。分析得出,當苗塊摩擦系數一定且同步帶傾角在24.5°~35.0°時,有利于依次連續輸送階段苗塊不翻倒;分苗夾持力越大,夾持分離階段苗塊分苗效果越優。優選得出分苗裝置關鍵參數:同步帶傾角為30°,分苗夾持力fj1>0.8 N,分苗氣缸工作氣壓P為0.5~0.8 MPa。分苗裝置分苗試驗表明:苗塊翻倒率為4.2%,分苗成功率為92.5%,滿足油菜基質塊苗分苗需求。

          Abstract:

          Mechanized transplanting of rapeseed is an efficient planting mode. However,the complicated structure and instability of seedling detaching process affects the transplanting quality of rapeseed substrate seedling. An inclined detach device for rapeseed substrate seedling transplanter was developed to solve the problem that the seedling transplanting device of the traditional transplanting machine is easy to tip over during the transplanting of rapeseed. The structural composition and the seedling detach processes were analyzed. The key components were designed and the main structural parameters of the seedling detach device were determined. A mechanical model of seedlings in the transporting and separating stages of the seedling detach process was constructed to analyze the main factors affecting the stability of the seedlings. The results showed that the seedling block was stable during the transporting stage when the frictional characteristics of the seedlings were constant and the inclination angle of the belt was between 24.5° and 35.0°. The lager of the clamping force,the better of the separation effect in the separating stage. The optimized key parameters of the seedling detach device included 30° inclination angle of the belt,lager than 0.8 N clamping force(fj1),and 0.5-0.8 MPa air pressure of the cylinder(P). The results of bench experiment showed that the capsizes rate of seedlings block was 4.2% and the detaching rate was 92.5%,meeting the needs of seedling detaching of rapeseed substrate seedling. It will provide a reference for designing detach device of rapeseed substrate seedling transplanter

          參考文獻
          相似文獻
          引證文獻
        引用本文

        王洋,張青松,胡喬磊,何坤,肖文立,廖慶喜.油菜基質塊苗移栽機傾斜式分苗裝置設計與穩定性分析[J].華中農業大學學報,2020,39(4):147-155

        復制
        分享
        文章指標
        • 點擊次數:
        • 下載次數:
        • HTML閱讀次數:
        • 引用次數:
        歷史
        • 收稿日期:2020-04-24
        • 最后修改日期:
        • 錄用日期:
        • 在線發布日期: 2020-07-30
        • 出版日期:
        牌九游戏