2819 弧板-滾筒式核桃破殼機(jī)設(shè)計
2819 弧板-滾筒式核桃破殼機(jī)設(shè)計,弧板,滾筒,核桃,破殼機(jī),設(shè)計
12 屆畢業(yè)設(shè)計弧板-滾筒式核桃破殼機(jī)設(shè)計說明書學(xué)生姓名 李文正 學(xué) 號 8011208215 所屬學(xué)院 機(jī)械電氣化工程學(xué)院 專 業(yè) 機(jī)械設(shè)計制造及其自動化 班 級 12-2 指導(dǎo)教師 張宏 日 期 2012.6 塔里木大學(xué)教務(wù)處制 前 言核桃，是人們常見的食物。它營養(yǎng)豐富，具有健腦、補(bǔ)腎、美容、降血脂四大功效。核桃和核桃仁還是我國傳統(tǒng)的出口商品。但是，由于核桃殼堅硬，手工剝核極其不便而且費時費力。因此，提高核桃取仁的機(jī)械化程度，是生產(chǎn)過程中急需解決的問題。鑒于此，本設(shè)計根據(jù)以往的研究與資料，提出了弧板—滾筒式核桃破殼原理，研制了核桃破殼機(jī)。本機(jī)能完美的解決核桃難剝核和人工剝核不能保證仁的完全性難題，且又有較高的生產(chǎn)率和較高的高路仁率。本次設(shè)計采用常見的電機(jī)作動力源，利用 V 帶傳遞功率。利用軸旋轉(zhuǎn)帶動滾筒的轉(zhuǎn)動，利用氣缸實現(xiàn)破殼，從而使機(jī)器能夠連續(xù)的工作，大大提高了生產(chǎn)率。 目錄1 在國內(nèi)（外）研究現(xiàn)狀及分析·······································11.1 堅果類破殼機(jī)現(xiàn)狀··············································11.1.1 堅果類破殼機(jī)常見的機(jī)械脫殼方法 ································11.1.2 新型核桃脫殼方法·············································11.1.3 幾種典型的堅果類破殼機(jī)·······································21.2 對堅果類破殼機(jī)械未來展望分析···································22 破殼機(jī)設(shè)計的目的、意義···········································33 弧板-滾筒式破殼機(jī)工作原理········································33.1 破殼機(jī)的總體裝配思路··········································44 氣動裝置的選取···················································45 弧板-滾筒式核桃破殼機(jī)的設(shè)計·····································55.1 電動機(jī)的選擇·················································56 帶及設(shè)計··················································56.1 傳動帶的設(shè)計·············································66.1.1 確定計算功率················································66.1.2 選擇 V 帶的型號·············································66.1.3 確定帶輪的基準(zhǔn)直徑···········································66.1.4 確定傳動中心距和帶長·········································66.1.5 驗算主動輪上的包角···········································76.1.6 確定 V 帶的根數(shù)·············································76.1.7 確定帶的初拉力···············································76.1.8 求 V 帶傳動作用在軸上的壓力····································87V 帶帶輪的設(shè)計····················································87.1 帶輪的材料選擇···············································87.2 結(jié)構(gòu)設(shè)計·····················································87.3 從動帶輪的設(shè)計················································98 傳動軸的設(shè)計·····················································98.1 根據(jù)軸向定位的要求確定軸的各段直徑和長度·························108.2 初步選擇輸出軸系··············································108.3 確定輸出軸上的圓角半徑······································108.4 按彎扭合成條件校核軸的強(qiáng)度·····································118.4.1 求輸出軸上的所受作用力的大小··································118.4.2 求滾筒上所受的的合力·········································118.4.3 軸上水平面內(nèi)所受支反力如圖···································118.4.4 軸在垂直面內(nèi)所受的支反力·····································118.4.5 作彎矩圖···················································128.4.6 軸的載荷分析················································128.4.7 當(dāng)量彎矩計算················································128.5 校核軸的強(qiáng)度·················································139 入料斗的結(jié)構(gòu)設(shè)計···············································1310 滾筒的設(shè)計····················································1311 軸承端蓋······················································1412 氣缸撞擊裝置················································1413 影響核桃破殼的因素··········································1413.1 核桃的性質(zhì)···············································14 13.1.2 核桃飽滿程度和均勻度····································1413.1.3 核桃的濕度要適中········································1513.1.4 破殼板的硬度···········································1513.2 喂料速度對破殼效果的影響··································1514 結(jié)論························································1614.1 本課題所完成的工作········································1614.2 需要重點研究的、關(guān)鍵的問題及解決的思路·······················1614.2.1 目前核桃破殼取仁機(jī)械存在的主要問題························1615 致謝························································1716 參考文獻(xiàn)····················································18
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弧板
滾筒
核桃
破殼機(jī)
設(shè)計
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2819 弧板-滾筒式核桃破殼機(jī)設(shè)計,弧板,滾筒,核桃,破殼機(jī),設(shè)計
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