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魔界狂想曲- 第一三六二章 設備的限製-玄幻奇幻-萬花小說
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第一三六二章 設備的限製

  車間中有兩個並排放在一起的軲轆。


  把它們對齊,然後用一根傳動帶把它們給連接在一起。


  傳動帶纏的也不是很緊。


  拉力還不錯,但是想再提高難度就比較大了。


  用一個直徑四米的軲轆帶動一個直徑四厘米的軲轆轉動,用傳動帶連接,會發生什麽?

  他覺得如果兩個軲轆的尺寸不夠標準,它們的位置擺的不夠正,那麽傳動帶會越來越鬆,也越來越沒力氣。


  他在想,牛皮不是那種能夠精確加工的工業品,他也沒有別的材料來製作傳動帶,還是改用齒輪組比較好。


  而使用齒輪組之後就麵臨著精確度的問題。


  對於他的水力機床而言,這些齒輪組都傳導著巨大的力量。


  不管是加工木材還是加工金屬,都需要機床比較有力。


  所以齒輪組如果咬合的不夠精密,出現鋸齒互相衝突的情況,那麽傳動裝置肯定會崩壞,甚至可能把設備給推翻,傷到工作人員。


  齒輪對馬林來說算是另一種幾何體,多加練習的話也可以徒手加工的比較標準。


  先用車間裏現有的機床進行加工,再靠眼力進行調整。


  他覺得應該單獨從鴨子河引來一道水流,用於驅動這些機床,水流比較平穩,動力裝置也比較平穩,容易控製,這樣子對齒輪組的要求就會降低。


  否則製作起來太難了。


  事實上有了水磨與水力鼓風機之後,鐵爐村的原始人便已經非常滿意了。


  隻有‘小樹’等木工急著使用水力機床,不停的催促馬林快點加工那些零件。


  馬林在調試自己的機床,希望能夠提高它們的精度。


  每當他的手變得更為靈巧,他就會首先升級自己的機床。


  機床的很多零部件在安裝前需要他徒手進行打磨、調整。


  如果他的手工不夠好,那麽機床便始終不夠精密。


  他現在要加工齒輪。


  首先他要能打磨出非常標準的圓柱。


  其次他要能夠在這個圓柱內部開出比較標準的轉軸。


  打磨和開洞都涉及到一個問題,那就是他要推著刀具直線前進。


  讓他為難的就是這個環節。


  想推著刀具直線前進,就應該有三道滑杆支撐著刀具所在的架子,也對架子進行約束。


  三道滑杆都必須非常直、圓,架子上的洞眼也必須非常標準。


  否則,要麽推動的時候路線不直,要麽推不動。


  這就是考驗老師傅的能力的時刻。


  就像是一個畫師能夠把幾何體給畫的非常標準,他這位加工金屬的老師傅也需要這方麵的手工能力。


  而這種能力很是不好獲得。


  那個三道滑杆以及三個洞眼,他可以先用儀器給加工出個大概,然後再用手進行調整和修正。


  足夠銳利的眼睛和足夠靈巧的手。


  這是靠手藝支撐起的精密製造業。


  他其實心裏有點懷疑,真的需要把齒輪給加工的那麽精準嘛?

  馬虎一點不行麽?


  但是如果他不想使用傳動帶,而想使用齒輪組驅動機床,那沒法子,還是製作的更精密一點吧。


  機床要飛快的轉動。


  比如說,每秒十轉以上。


  水輪正常情況下每秒四分之一個轉,這是建立在鴨子河一直水流較急的情況下的。


  相差四十倍。


  用一個直徑兩米的大齒輪帶動一個直徑五厘米的小齒輪,就能夠實現這種轉速轉變。


  或者用直徑二點四米的大齒輪帶動一個直徑六厘米的小齒輪。


  不管哪種,在手工製作方麵都存在不小的難度。


  他覺得直接用直徑兩米的大齒輪帶動直徑五厘米的小齒輪,非常的麻煩。


  如果小齒輪有六個齒,大齒輪就要有兩百四十個齒。


  中間可以再過渡一次或者兩次。


  比如說,直徑五厘米的齒輪用直徑三十厘米的三十六齒齒輪驅動,這個齒輪再驅動更大的齒輪,這樣子在咬合的時候能夠更容易一些。


  即使嘴上說更容易。實際製作起來可是一點都不容易。


  直徑五厘米的齒輪,它的齒應該有多深呢?


  最多兩厘米深。


  於是整個齒輪組的精度要求就是,誤差不超過一厘米。


  直徑兩米的齒輪,誤差不超過一厘米。


  它自身的圓盤是存在誤差的,它的轉軸與軸承之間也是存在誤差的。


  兩者加在一起不能超過一厘米。


  否則這個齒輪組運行的時候肯定會發生崩壞現象。


  這對他的手工加工能力來說是一種嚴峻的考驗。


  沒有這種能力,就沒有齒輪組,沒有水力驅動的機床。


  同樣也沒法用蒸汽機驅動。


  如果他降低對車床的轉速要求,從每秒十轉改成每秒五轉,是否可行呢?

  其實也不是不能用。


  一個直徑二十厘米的圓鋸,每秒五轉的話,鋸齒的移動速度是每秒六米。


  人揮斧子用盡全力砍下去,斧頭的速度是多少呢?


  大約是每秒十米以上。


  而直徑四十厘米的圓鋸,每秒五轉,鋸齒速度可以達到每秒十二米,是可以輕鬆的鋸開木材的。


  這種尺寸的圓鋸是比較常見的。


  所以說,把大的齒輪的直徑降低到一米也不是不行,這種條件下他的工具和手在精密度上是達標了。


  可是這樣子的鋸子不夠好使,遇到硬木頭可能會鋸不動,比如說,胡桃木和紫檀木就很硬,另外木頭長瘤的地方也會很硬,這種鋸子的鋸齒可能會被彎折。


  他的想法是,先製作幾個小的,湊合著使用。再製作幾個大的。


  水輪的轉軸上自帶一個直徑一米的齒輪,它咬合著一個直徑二十厘米的齒輪,後者又咬合著直徑五厘米的齒輪。


  這樣子行不行?


  不行。


  問題在於,直徑五厘米的齒輪,如果齒深兩厘米,那內部實心的部分直徑隻有一厘米。


  不結實。


  車床的轉軸自己就得有五厘米直徑,再加上兩厘米深的齒,總共直徑九厘米。


  直徑變大,轉速就會降低。


  所以最小的齒輪的直徑應該是十厘米,把齒的深度可以稍微改大一點,二點五厘米,給製作降低一點難度。


  於是水輪上的那個齒輪直徑應該是兩米以上,否則實在是保證不了轉速。而保證不了轉速,圓鋸就會經常崩壞。


  他的想法是,不妨把這個直徑做成三米,它允許的誤差是一厘米零兩毫米。


  馬林被為難的腦門上直冒蒸汽。


  他的儀器沒有這麽準。所以他隻能手工矯正。


  對精鋼製作的齒輪進行手工矯正。


  這個誤差實在是令他頭疼。


  首先,這個大齒輪的鐵塊怎麽割出來?

  它可是直徑三米。


  它的厚度會有二十厘米。


  想把它給打磨的比較光滑就挺吃力的。


  他的機床的尺寸不夠。


  於是隻能先用機床進行粗加工,然後自己手動細加工。

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