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魔界狂想曲- 第1712章 砂輪-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1712章 砂輪

第1712章 砂輪

  在兩頭各係一根繩索。先把一根繩索正向纏到鑽頭的杆上,繃緊,繩索的頭部則是固定在杆上。


  另一根繩索反向纏在杆上,相對鬆弛一些,頭部也固定好,它跟上麵那根繩索存在高低差。


  弓鑽就製作好了。


  先試試怎麽樣。


  隨便找了個木塊。


  把鑽頭給壓上去,左手按住鑽頭屁股處那個木塊。


  右手像是拉鋸子一般來回拉這個弓,它的線帶動鑽頭旋轉。


  鑽頭是裝在一個圓木棍裏麵的,圓木棍與線之間有不小的摩擦力。


  圓木棍與鑽頭的屁股的銜接處是方形的,不是圓形的,不會產生相對轉動。


  圓木棍與後麵的木塊之間是轉軸與軸承的關係。


  先拉兩下,發現反向的繩索有點鬆,於是把它給繃緊。


  再接著拉。


  還是很好使的。


  兩隻手都需要多使用一些力氣,但是動作一定要緩慢、有節奏感。


  很容易就能夠在木頭上打出眼來。


  陶車怎麽製作?


  在一根粗木棍上打個豎直的眼。然後把木棍固定好。


  怎麽保證這個眼是豎直的?


  把一個轉軸插入裏麵,瞧這轉軸是否豎直,如果不,重新打個眼吧。


  確定垂直了。


  然後把木棍給固定在架子上。


  接著再給一塊木板打眼,保證眼是豎直的。把轉軸插進去,瞧它與木板的麵是否垂直。


  盡量不要太大的偏差。


  接著把木板給做成鋸成圓形,沒必要多圓,像個正多邊形就行了。


  再製作一個木架子,垂直於轉軸,把上麵這個圓木板給架起來。


  怎麽保證架子上部水平麵與轉軸是垂直的?


  先試、再量、再打磨。


  然後就製作出了陶車。


  他現在沒能力製作齒輪,所以也沒能力製作傳動裝置。


  畢竟他現在隻有溫度不夠高的黏土爐,也隻製作的出來生鐵。


  這個陶車上麵的圓盤怎麽才能轉動起來?


  在它下麵的轉軸上裝一個傳動帶,拉到一個軲轆上。


  讓一個小孩撥動這個軲轆。


  這個轉軸就會轉的飛快。


  傳動帶要是向下滑怎麽辦?

  係緊點,轉軸和軲轆上都加工出明顯的凹槽來。


  下麵又有一個問題。


  那就是打眼的問題。


  他可以製作一個更大的弓鑽。


  鑽頭直徑五厘米左右。


  用一張更大的弓和兩根更粗的繩索驅動。


  兩個人推拉這張弓,就像是拉鋸一般。


  鑽頭的位置用很結實的木架子固定住。不會上下左右移動。


  鑽頭的尾部也是用木架子抵住。


  這樣子可以打更大的眼。


  他也可以把鑽頭換成砂輪,專門用於打磨。


  磨一根針需要花費的時間便降低了很多倍。


  對木頭的打磨也容易了很多倍,就是可能會比較費砂輪。


  用磚頭做砂輪就可以打磨金屬,現在隻有鐵需要被打磨,隻是它們太容易壞了。


  所以還是應該用石頭製作砂輪,中間掏方形的眼。


  外圍打磨成接近圓形。先不用著急,拿它把幾把鐵斧、鐵犁、菜刀的外形進行一些加工,把凸起、難看的部分都給磨掉,使之更好看,也能夠進行一定的開刃。


  下麵的鐵粉收集起來,淘掉土,然後燒紅了進行鍛打和冶煉。


  馬林覺得自己非常需要鋼。


  但是既然沒有,那就不要強求。


  下麵還能製作什麽?

  有了弓鑽之後,一些事情變得簡單很多。


  但是很多手工製作依然很難。


  沒有鋼,事情就是難做。


  馬林想起了家裏的各種電機。


  他不用電力驅動,而用放大後的類似弓鑽的裝置驅動,是否可行?


  讓兩個人來回拉到這張弓,就像是拉鋸一般。


  弓上栓有的兩根繩子就帶動下麵的轉軸旋轉。


  而轉軸的另一端裝有木工器械,比如圓鋸,比如打磨用的砂輪。


  這有什麽好處?

  這樣子就可以設計製作一個工作台,加工出的木條都非常的符合尺寸。


  不過目前隻用來打磨。


  之所以用弓鑽這種方式來驅動,是因為現在既沒有齒輪,也沒有質量好的傳動帶。


  如果有的話,他會用腳蹬來驅動這些儀器。


  不行就用牲口裏驅動。


  立刻就製作了這樣子一個砂輪。


  製作一塊圓餅狀石頭,中間掏個四方形的口。


  插入一根轉軸。


  轉軸固定在一個木架子上。


  轉軸的另一端比較細,用兩根繩子連在一張弓上,繩子的纏法如弓鑽那般。


  一手來回拉動這張弓,砂輪就會快速的旋轉,一會正向,一會反向。


  可以用它來打磨鐵器或者木頭。


  剛製作出的鐵疙瘩形狀太醜,用它打磨就行了。


  它的存在有什麽意義?

  先前馬林製作剪子太吃力。


  現在則是覺得容易多了。


  兩塊鐵,錘的比較平衡平整,開兩個眼。


  形狀有一點接近剪刀就行了。


  然後拿到這個砂輪這邊進行打磨、修整外形。


  一側的邊緣先修整的非常直,然後磨出刃來。


  然後兩塊並一起,兩個眼裏插一根粗鐵絲。


  再裝兩個把手,就成為了一把剪子。


  原來用磨刀石磨不知道要多少天,有了這個裝置後一天就能夠磨好。


  剪刀還可以加工的更仔細一些。


  先用鐵做好把手,燒紅後與下方帶刃的鐵塊給錘的粘結起來,合二為一。


  砂輪的砂越是細,加工的也越是精細。


  這個機械前麵裝的如果不是砂輪,而是鑽頭,就可以用於打眼。


  比弓鑽力氣大一些,可以打比較大的眼。


  製作紡車的時候不是要打很多個眼嗎?

  利用它打眼就行了。


  那麽刨子可不可以以這種方式運作呢?

  拉弓的使用兩個大漢。


  這弓比較的重,用繩索懸吊在空中。


  兩個大漢如同拉鋸一般,用繩索牽動轉軸快速旋轉,轉軸帶動一個類似刨子的工具把木板給刮平。


  這做得到麽?

  做得到。


  隻要兩個大漢力氣夠,這個刨子就足夠鋒利。


  弓繩拉著的轉軸越是細,拉一下它轉動的就越快。


  隻是這個轉軸必須是鐵的,如果它太粗,那麽拉動弓的時候它轉的就不快,不快就沒有意義。


  是否有什麽好辦法來製作較好的傳動帶,用以牽動木頭轉軸旋轉?


  傳動帶要能傳比較大的力氣。


  用漁網行不行?


  漁網與轉軸的摩擦力恐怕不大夠,導致傳動的時候出現打滑的現象,於是就無法給轉軸提供足夠的力氣來完成各種手工作業。


  前述弓鑽式動力裝置雖然不夠好,但是依然可以使用。


  這使得木工加工容易了很多倍,就是需要兩個小孩幫忙拉弓。


  即便如此,製作各種板材的時候花費的力氣可以減少很多。


  沒想到弓鑽這麽快就能夠製作好。


  還能夠派上這麽多用途。


  這個設備搞的他有點累。


  在條件這麽艱難的情況下,他依然獲得了這麽一種動力設備,使得手工製作的難度降低了不少。


  一個鑽頭怎麽磨尖?


  放在砂輪上打磨就行了。


  他搞的有點累。


  於是就出去幾天用於狩獵。


  見到大家捕獵熊、野豬、野牛這麽吃力、危險,於是就想早點把弩給製作出來。

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