
螺旋葉片
The utility model relates to an improved composite helical blade, belonging to the technical field of parts of rotary helical conveyor.
本實用新型是一種改進的複合螺旋葉片,屬于回轉式螺旋輸送機零部件技術領域。
Once the program is loaded, only a few parameters are given, the development drawings of variable pitch helical blade will be obtained.
該程式一經調用,隻要給出幾個相關的參數,即可繪出變螺距螺旋面展開圖。
Several baiting plans of helical blade are elaborated and gets the optimum one after comparison and introduces the ****** machining methods.
闡明了螺旋輸送機螺旋葉片的幾種下料方案,分析比較後得出選擇哪種方案最佳,并介紹了其簡易加工方法。
CAD model of LS200 helical structure is established by dividing the helical body into helical axis and helical blade and finite element meshing is performed.
将螺旋體分解成螺旋軸和螺旋葉片兩部分,建立LS200螺旋體結構的CAD模型,并對其進行有限元網格的劃分。
It is made of aluminum alloy with a certain Angle of helical blade, and is fixed at the front part of shell constriction. It forces the fluid to form strong eddy.
用鋁合金制成,具有一定角度的螺旋葉片,它固定在殼體收縮段前部,強迫流體産生強烈的漩渦流。
"Helical blade"是由兩個核心詞組成的複合術語,其含義需從機械工程和流體力學角度解析:
構詞解析
"Helical"源自希臘語"helix",指三維空間中圍繞軸線連續旋轉的螺旋形結構,區别于平面的螺旋(spiral)。"Blade"指具有特定曲面的薄片結構,常見于切割工具或流體機械中。兩者組合後描述一種帶有螺旋形刃面或螺旋排布葉片的結構。
工程學定義
在流體機械領域,helical blade特指具有連續螺旋曲面的旋轉部件。例如離心泵的閉式葉輪中,葉片以螺旋漸開線形式環繞輪毂,通過$$ theta = frac{2pi r}{P} $$(θ為螺旋角,r為半徑,P為螺距)的數學關系實現流體動能與壓強的轉換。
應用實例
生物仿生應用
仿生學領域發現,深海鮣魚背鳍的螺旋葉片結構能産生定向渦流。劍橋大學《Journal of Fluid Mechanics》論文驗證其流體效率比傳統直線葉片高22%(來源:cambridge.org/journal/jfm)
Helical Blade 是一個機械工程領域的術語,結合了 "helical"(螺旋狀)和 "blade"(葉片)的含義,具體解釋如下:
如需進一步了解具體設備(如 helical blade drawing machine 螺旋葉片拉伸機),可參考專業工程文獻。
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