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魔界狂想曲- 第一四零七章 車輪-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> 第一四零七章 車輪

第一四零七章 車輪

  打氣筒自身又是什麽原理的呢?

  一個筒子,側麵存在氣門,活塞向上拔的時候氣門打開,進氣,活塞向下運動的時候氣門關閉,於是氣體隻能被推入下方的輪胎中。


  氣門的設計如前麵那樣子,一個板子掛在一個洞裏麵。


  板子上可以包有一層軟橡膠,這樣子覆蓋的時候會更緊密、沒有空隙。


  這就是一根管子的打氣筒,並不會省力,打氣的時候必須花大力氣。


  金屬管很容易製作,側麵開洞並安置氣門也很容易。


  連通輪胎的管道的前端不容易設計。


  開口處必須接一個金屬塊,方便夾子夾住。


  夾子的造型他怎麽都不會記錯。


  金屬塊接一個細管子作為出氣口。


  細管子外麵有一個粗管子。


  粗管子如果縱向受壓就會收緊。怎麽實現這個功能?

  有類似扳機一般的金屬塊裝在細管子外麵。


  這個玩意兒花費了不少時間進行設計。


  讓它勉強能用的程度花費了他很大的力氣。


  製作打氣筒。


  安裝出氣管的時候花費了不少時間。


  給出氣管前端裝那個金屬頭和那個夾子又花了不少時間。


  金屬頭是他鑄造出來的。


  又給細管子外麵裝了那個能夠通過壓力收緊的粗管子。


  越是用力按壓,粗管子收的越是緊,氣門芯的橡膠管與打氣筒的細管子就會連接的越是緊密。


  他知道自己的設計不如他老家的打氣筒。


  但是他能力有限。


  輪胎那邊,氣門芯套在一個細管子上,細管子外麵有個可以擰緊螺絲的粗管子。螺絲一擰結實,兩個管子之間便不漏氣了。


  打氣的時候,輪胎的管子套上打氣筒的那個細管子,用夾子夾好。


  如果細管子底部有軟的橡膠墊,那麽壓力就會使得輪胎那個管子的出口被橡膠墊給堵死,不會出現漏氣現象。


  那個能夠因為壓力收緊的粗管子還是有些用處。


  它套在橡膠管上,加大壓力,把縫隙給堵的更結實。


  打氣筒就這麽安裝好了。


  最麻煩的環節是那個受到壓力就會收攏的粗管子。


  勉強能用。


  給這輪胎打氣。


  越是打它脹的越是厲害。


  後麵明顯比正常輪胎大了一圈。


  說明這種合成橡膠的拉力不夠,必須做的更厚一點。


  合成橡膠是用動物膠、豬皮蛇皮碎片、腸衣碎片混合製作出來的。


  外觀不太光滑,但是彈性非常好,而且越是厚越是有韌性。


  重新倒模製作了一個合成橡膠管子。


  重新裝金屬管和氣門芯。


  他這種做法。氣門芯要套在一個較細的管子上。


  全都裝好之後,打氣的時候便出了問題。


  打氣筒與氣門芯之間漏氣。


  馬林認為是打氣筒的出氣口的設計出了問題。


  那個遇到壓力就收緊的管子裝配難度太高,壓根就不實用。


  兩個通氣的金屬管對接,中間有縫隙怎麽辦?

  馬林是被這個問題給難住了。


  他的製作自行車的計劃就這麽被打氣筒的出氣口的問題給難倒了。


  在這個世界果然做啥都很難。


  如果能夠自行搞定這個問題就好了。


  或許連氣門芯的設計都應該進行改動。


  隻是他沒有思路,他老家的打氣筒給輪胎打氣,是一種非常簡單、容易操作的事情。


  那麽兩個管子的銜接到底是怎麽實現的?

  如果不能用打氣筒打氣,車輪內胎的存在便沒有意義。


  那麽換一種做法。


  自行車那邊,橡膠管套著一個管子。這個管子帶有多條縫,口徑可以被壓縮,而且外麵薄,裏麵厚。


  在被頂入打氣筒的粗管子的時候,它便被壓的越來越細,直到完全把縫隙給封死。


  反複的實驗,覺得這種辦法也不妥。


  先不管這件事。


  考慮自行車都有哪些關鍵的零件。


  首先得有兩個齒輪。


  一個齒輪連接到腳踏上。


  一個齒輪連接到後車輪上。


  然後要有車架子。


  接著是兩個輪子。


  一個輪子上方連通車把手。


  此外車子還需要外胎。


  外胎他也能夠用自己這種合成橡膠製作。


  他覺得自己可以動手製作輪子了。


  每個輪子,外麵有個車圈,內部也有個用來支撐輻條的鋼圈。


  輻條他準備怎麽安裝?


  在兩個鋼圈上打眼再安裝麽?


  他決定采用的做法是,先鑄造一個整體,外麵一個鋼圈連接著二十多根粗大的輻條,裏麵再接一個鋼圈。


  他覺得自己是鑄造的出來的。


  外麵的鋼圈外部再接一個鋼圈用來容納內胎,裏麵的鋼圈內部安裝軸承,軸承內部安裝車子的轉軸。


  他覺得這個做法是可行的。


  可是後車輪又不同於前車輪,它的側麵還要有個齒輪。


  所以它內圈要多出一部分用來安裝齒輪。


  下麵開始鑄造車輪。


  他決定在石頭上雕刻出凹槽來。


  越是標準越是好。


  雕刻的過程花了他不少時間。


  鑄造出來的部分越是標準越好,可以節省掉他很多用於打磨的時間。


  一天整才在石頭上雕刻好車輪形狀的凹槽。這種石頭不怕高溫,不會被鐵水給燙的變形。


  晚上倒入鋼水,冷卻。


  取出來。


  能夠生產鋼水是因為他有熱風爐。


  它們的形狀都很不標準,打磨工作需要進行很久。


  主要難題一是外麵的鋼圈的外側麵,它要對接另一個鋼圈;二是內部的鋼圈的內側麵,它要對接軸承。


  如果形狀不標準,裝的時候肯定會出各種問題。


  先不急著打磨,把兩個輪子外麵的輪圈也給鑄造出來。


  輪圈外側麵帶有凹槽方便安裝輪胎。


  鑄造的時候應該怎麽加工出這種凹槽呢?

  他的想法是,用沙子製作模具。


  先用木頭雕刻出車圈的形狀,然後準備兩框壓緊的沙子。兩個方形木框,內部裝滿濕沙子,壓緊。


  把木頭模型放在一框沙子的表麵,然後把另一框沙子蓋在上麵。


  於是模型在兩框沙子中間留下了凹痕。


  先把兩個框都給拿開,把木頭模型拿走。


  再把兩框沙子如原先那般對接在一起。


  接著挖出孔以便把鋼水給灌進去。


  木頭模型用了一天雕刻好。


  非常的標準,打磨的非常仔細。


  接著用這種傳統的翻砂法,兩個木框裏裝滿壓緊的沙子。


  把木頭模型放在中間。


  兩個木框拚在一起,壓緊。


  兩個木框分開。


  取出木頭模型。


  沙子的凹痕真實的展示了模型的外形。


  掏好灌鋼水的洞。


  兩個木框再對接到一起。


  灌鋼水。


  一晚上,這兩個車圈都鑄造好了。


  它們的表麵都很粗糙,形狀也不標準,需要進行打磨。


  四個鑄造出來的鋼鐵部件在外形上都不標準,需要進行很多打磨。


  他有轉速非常快的砂輪,所以粗糙的打磨比較省力。


  後麵的車輪中間多出了一塊,用來安裝齒輪。


  打磨工作相當的花費力氣。


  他現在依然被打氣筒的問題給煩的夠嗆。


  沒有弄懂打氣筒的出氣口跟氣門芯是怎麽連接的,為什麽打的時候不漏氣。


  他考慮的話,應該是存在一種設置能夠通過壓力收緊。


  但是他完全想不清楚。


  他記得皮球打氣的時候需要專門的球針。


  球針又是什麽原理的他也安全不知道。


  打氣筒的出氣孔到底是怎麽回事,為什麽能夠跟氣門芯緊密相連,不漏氣?

  也許此類技術問題都有非常簡單的解決方案。


  但是一時半會就是想不出來。


  他被為難的夠嗆。


  慢慢的打磨著四個鋼鐵鑄件。


  它們兩兩拚起來,會形成兩個車輪,中間帶個洞,是留給軸承和轉軸的。


  而想把它們給拚起來還真需要花費不少力氣。


  這時候他忽然想起來一個問題,他為什麽不用翻砂法一鼓作氣把整個車輪都給鑄造出來呢?


  用木頭做出車輪的模型,用兩個木框的沙子壓到模型上,再拿開,沙子裏便留下了凹坑,輪廓跟模型一致。


  再把兩個木框給拚起來,澆鑄鋼水。


  可以省掉一次拚接,從而減少兩天的打磨時間。


  想了一下,覺得還是這個主意好。趕緊進行嚐試。

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