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魔界狂想曲- 第一四七三章 為難-玄幻奇幻-萬花小說
当前位置:萬花小說>书库>玄幻奇幻>魔界狂想曲> 第一四七三章 為難

第一四七三章 為難

  然後還有一個問題,那就是兩條鉸鏈之間要有金屬片進行連接,這樣子便是履帶的模樣。


  如果采用另一種做法。


  一根鉸鏈中間的金屬柱做的特別長,跟履帶寬度一致,是否可行?


  馬林認為可行。


  雖然這樣一來要耗費很多原料,打磨的時候也會麵臨很多問題。


  再考慮兩根鉸鏈這種做法。


  金屬片怎麽固定在圓柱上?


  相關工藝有點麻煩。


  還是采用前麵那種做法吧。


  有沒有難點?

  打磨和安裝的時候可能有一點點費力氣。


  馬林馬上開始製作樣品。


  然後用翻砂法多生產幾個出來。


  一上午就能夠各生產幾十個。


  接著就快了,把幾十個一起當做翻砂法的模範,一次就能夠生產幾十個。


  兩天多就能夠把需要的零件都給鑄造好。


  接下來還需要手工進行打磨,以及用衝床給金屬片打孔。


  打孔的模具製作起來幾乎毫不費力,一次給一個金屬片開兩個孔,不用一天就能夠全部造好。


  方孔圓片的製作更是快。


  馬林在想不如就用錫來製作這些方孔圓片,套上轉軸後用氫氣把它們給烤化,於是就焊死了。


  他對於用錫焊缺少經驗。


  要是在一個爐子裏把錫給燒化,然後用針管式的東西吸取錫液再滴下去,不知道是否可行。


  針管做的像是氣缸、活塞那樣不怕高溫。


  似乎是可行的。


  可以進行實驗。


  大約三天時間就準備好了所有這些零件,都是打磨過的。


  接著進行安裝。


  最麻煩的就是焊錫。


  用針管吸取錫液並滴到目標位置的做法不見得比用小勺子舀更方便。


  考慮到要焊接的重量也不是那麽大,還是手動用小勺子慢慢焊接吧。


  先前生產過自行車鉸鏈。


  所以這次也不算太生疏。


  事實上一天時間這履帶就做好了。


  製作了兩對齒輪,履帶套在它們上麵旋轉。


  調試了幾次之後就不再出現卡死現象。


  這一點非常的棒。


  然後’機靈鬼’就可以對聯合收割機的前半部進行測試了。


  它要能夠割草並把草推入收割機的傳送裝置,接著從履帶的一個口子中出去。


  把這些東西都裝到拖拉機上,再調試好是需要花費不少時間的。


  尤其麻煩的是傳動裝置。


  五件東西需要被驅動,各自都分布的比較遠。


  於是就需要比較麻煩的齒輪組。


  那個風車狀釘耙離的實在太遠,用一個獨立的電動機驅動。


  安裝和調試都需要非常久。


  這種設計被證明了是可行的,用來割草可以割的非常幹淨。


  故障也很多。


  尤其是自製液壓裝置讓人很是不放心。


  重點回到了聯合收割機後麵的脫粒機。


  馬林先前的想法是,秸稈與穀粒經過飛速旋轉的金屬片後進入螺旋狀的管道,接著多次用風力進行分離。


  馬林對於飛行中的亂糟糟的秸稈的控製缺少思考。


  最好是用一條較寬的管道把它們直接送出脫粒機。


  問題是這個過程中穀粒怎麽才能被分離出來。


  想不明白。


  馬林先前的三層螺旋結構實在是太麻煩了,尤其是風力太麻煩了。


  馬林最怕的問題是秸稈被卡在機器裏。


  如果能夠把秸稈給打的更碎,那就一點都不用擔心了。


  隻是這樣子很耗電,而且可能把穀粒也給打碎了。


  采用攔網到底行不行?

  攔網把秸稈給擋住,而穀粒可以輕鬆的通過。


  那怎麽保證秸稈不卡住網眼?

  這個實驗需要做很多遍。


  如果網眼是一直變化的,同時風力足夠大,馬林覺得秸稈被卡住的幾率會大幅度變低。


  比如說網眼分為兩層,其中一層一直在來回滑動,甚至如同收割用的鋸齒那樣子一直剪個不停。


  剪的頻率沒有必要多高。


  那麽怎麽設計這個?

  這個剪子,一邊左右移動,一邊上下移動,到了頭之後會自動返回。


  其實不需要,就設計成前麵的鋸齒那種樣子就行了。


  穀粒會由於重力自發聚集到一張網上,然後漏下去。


  大部分秸稈都被吹風機給吹進管道。


  隻有小部分纏在網上。


  可是緊貼著網存在兩層鋸齒呈剪刀狀,其中一層會不停的左右抖動進行剪切,抖動速度非常快,足以把漏下來的秸稈給剪斷。


  這種鋸齒結構會不會擋住強風?

  不會。


  這種抖動比較容易實現,一個齒輪加上曲柄搖杆裝置就行了。


  穀子在進一步下落的過程中還會再次遇到網和吹風機。


  於是需要兩個吹風機,兩道網。


  下麵那道網不用再設置剪刀了。


  網與剪刀的結構比先前簡潔了一些。


  但是依然很麻煩。


  先進行製作吧。


  秸稈從履帶盡頭落入打穀機。


  下麵是非常旋轉的很多金屬片。


  它們的速度足夠快,把穀粒都給打飛,把秸稈都給打軟、碎,穀粒和秸稈都下落,來到一個管道的底部,這裏有張網和一台吹風機,秸稈下不了網,於是被風給吹入管道深處,穀粒即使受到吹風機一些影響,也飛不遠,還是會遇到網並落下去。


  網的存在會影響管道中的風力麽?


  馬林自己見過的打穀機風力都很大。


  網漏風,導致管道中風力不強,這是正常現象。


  而風力太強的話來穀粒也會被吹走。


  這個平衡點怎麽設計?


  所有穀粒能夠飛到的位置都設置網。


  前方的管道風力不夠怎麽辦?

  再額外設一個鼓風機吧。


  於是這就有三個鼓風機了,兩個功率小的一個功率大的。、


  其實就是三個小電扇,問題不大。


  小電扇可以自帶電動機,要是怕用電不安全,也可以用齒輪組驅動。


  這個脫粒機的結構。


  兩張網。


  兩根管道,一大一小。


  三個鼓風機。


  此外還有兩排鋸齒。


  怎麽製作?


  一想到怎麽製作馬林就頭大無比。


  螺旋形管道對他來說是個難題。


  煉鋼廠的技術他是自己發明的。


  太複雜的形狀他是沒辦法製作的。


  直管子他造的出來。


  那就製作直管子。


  秸稈與穀粒從飛速旋轉的金屬片上落下來,進入一個傾斜的直管子。


  管子半腰存在兩張網。


  每張網側麵各存在一個鼓風機。


  上麵那張網的下麵還存在不停進行剪切的鋸齒。


  鼓風機把輕盈、鬆軟的秸稈吹離網,吹入一個直管道。


  管道在一定距離外連接斜向下的管道。


  穀子則是一直斜著下落。


  現在的問題是擔憂第一張網那裏由於鋸齒的存在,導致穀粒下落太慢,而鼓風機力氣太大把穀粒給吹走。


  仔細想一下。橫著吹的風再大,應該也不至於把穀粒給吹多遠。所以網稍微寬一點就行了。


  還有個問題,秸稈的量很大,於是上麵的管道就應該比較粗。


  這給鑄造帶來了很大的麻煩。

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