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.................................................................................... 6 .................................................................................................................................... 9 壓下電機容量的選擇 ............................................................................................................ 9 被平衡件重量的計算 ...................................................................................................... 9 轉(zhuǎn)動壓下螺絲靜力矩的計算 ......................................................................................... 9 壓下電機容量的選擇 ................................................................................................... 12 壓下裝置傳動機構(gòu)的設(shè)計 .................................................................................................. 13 蝸桿傳動的設(shè)計計算 ................................................................................................... 13 第 IV 頁 蝸桿軸的強度計算(第二級減速器蝸桿軸) ............................................................ 25 壓下螺絲螺母的強度計算 ........................................................................................... 32 機架的強度計算 .................................................................................................................. 35 機架的結(jié)構(gòu)尺寸 ............................................................................................................ 35 受力及其力矩 ................................................................................................................ 36 .................................................................................................................... 41 ......................................................................................................................... 42 ........................................................................................................... 43 經(jīng)濟性分析 .......................................................................................................................... 43 經(jīng)濟壽命的計算 ............................................................................................................ 43 經(jīng)濟設(shè)備大修期確定 .................................................................................................... 46 環(huán)保性分析 .......................................................................................................................... 48 結(jié)束語 .......................................................................................................................................... 50 致謝 ............................................................................................................................................... 51 參考文獻 ..................................................................................................................................... 51 第 1 頁 論 軋鋼生產(chǎn)是將鋼 錠或鋼坯制成鋼材的生產(chǎn)環(huán)節(jié)。 rolling technique。構(gòu)成了完整的壓下系統(tǒng)設(shè)計。主要包括壓下電機的容量選擇、直線環(huán)面蝸桿減速器基本尺寸的設(shè)計計算、蝸桿軸的強度校核、壓下螺絲和螺母的強度校核及軋機機架的強度校核。最終確定了 1780R2粗軋機壓下系統(tǒng)的最優(yōu)設(shè)計方案。能滿足軋制精度的要求。其粗軋機采用電動壓下系統(tǒng)。 第 I 頁 1780R2粗軋機壓下系統(tǒng)設(shè)計 摘要 隨著鋼鐵工業(yè)的不斷發(fā)展,軋機作為作為主要的軋鋼設(shè)備也在不斷的更新和發(fā)展。 1780熱帶鋼連軋機是現(xiàn)代熱帶鋼連軋機的典型代表。結(jié)構(gòu)簡單、維護方便、調(diào)整范圍大、調(diào)整迅速。本文對 1780R2粗軋機壓下系統(tǒng)進行了系統(tǒng)的設(shè)計計算,主要介紹了軋鋼技術(shù)國內(nèi)外的發(fā)展概況和熱帶鋼連軋機的現(xiàn)狀及發(fā)展趨勢,并且系統(tǒng)的分析比較了各種壓下系統(tǒng)的優(yōu)缺點。在此基礎(chǔ)上,對壓下系統(tǒng)進行了設(shè)計計算。本文還簡要介紹了潤滑方式的選擇、安裝試車規(guī)程以及經(jīng)濟性和環(huán)保性的分析等。 關(guān)鍵字 : 熱帶鋼連軋機;軋鋼技術(shù);壓 下系統(tǒng);強度校核 全套圖紙,加 153893706 第 II 頁 The Design of Pressure System of 1780R2 Rude Rolling Mill Abstract With the continuous development of the iron and steel industry, mills as the major rolling equipment are also continuously updating and developing. 1780 hot strip rolling mill is a typical of hot strip rolling mill in modern. Its rude rolling mill use of electric pressure system, it has the simple structure, the easy maintenance, large adjustment range and the rapid adjustment. It can meet the accurate requirement of 1780R2 rude rolling mill in the paper, it mainly introduces the rolling technology developments at home and abroad hot strip rolling mill of the status and the development trend, and systematically analysis the advantages and disadvantages of the pressure system. Eventually determine the options of optimal of design system of 1780R2 rude rolling mill. It carried on designing and calculating to the pressure system in this foundation, it including of the options of pressure motor of capacity, the calculation of lineartoroidal worm of reducer basic size, the strength checking of worm axis, the strength checking of adjusting screw and nut and the strength checking of mill housing . Also gave a brief account of the choice of mode lubrication, test order and the analysis of economic and environmental in the paper, and so on. Constituted an integrity of design of pressure system. 第 III 頁 Keywords: hot strip rolling mill。 pressure system。用軋制方法生產(chǎn)鋼材,具有生產(chǎn)效率高、品種多、生產(chǎn)過程連續(xù)性強、易于實現(xiàn)機械化自動化等優(yōu)點。目前,約有 90%的鋼都是經(jīng)過軋制成材的。 圖 軋鋼發(fā)展的三個方向 鋼鐵工業(yè)是國民經(jīng)濟的基礎(chǔ)產(chǎn)業(yè),是社會發(fā)展水平和綜合國力的重要標志之一。因為熱軋板帶不僅可以作為薄帶和中板直接使用,而且還作為冷軋板、焊管和冷彎型鋼生產(chǎn)的原材料,在汽車、造船、橋梁、建筑和家用電器等工業(yè)上得到了廣泛的應(yīng)用。世界先進工業(yè)國家鋼鐵工業(yè)的板帶比一般在 40%~ 60%,而我國尚不到 40%。近年來,隨著軋制新工藝的不斷涌現(xiàn)及軋制理論的日趨成熟,許多新型技術(shù)陸續(xù)地應(yīng)用到了熱軋機上,使鋼板的生產(chǎn)技術(shù)和產(chǎn)品質(zhì)量有了很大的改善。 目前我國是鋼鐵大國,還不是鋼鐵強國。鋼鐵產(chǎn)業(yè)是國民經(jīng)濟的重要基礎(chǔ)產(chǎn)業(yè),是實現(xiàn)工業(yè)化的支撐產(chǎn)業(yè),是技術(shù)、資金、資源、能源密集型的產(chǎn)業(yè),因此努力把我國建成具有國際競爭力的鋼鐵強國,必須走新型鋼鐵工業(yè)發(fā)展的道路,依靠科技進步和自主創(chuàng)新,提高我國鋼鐵工業(yè)的技術(shù)水平,提高我國企業(yè)及其鋼鐵產(chǎn)品的市場競爭力。主要是針對熱軋這一方面的,所以著重介紹一下熱軋技術(shù)的發(fā)展概況: 熱軋,是以板坯(主要為連鑄坯)為原料,經(jīng)加熱后由粗軋機組及精軋機組制成帶鋼。 自從世界上第一套板帶熱連軋機 1926 年誕生于美國阿姆柯鋼鐵公司后,熱軋板帶生產(chǎn)的發(fā)展已有 80 年的歷史。