【正文】 nder for peace movement driven. Heating furnace bed by fixed girders and walking beam two parts, walking beam of by double round multiaxial framework, the lateral go round supported by hydraulic cylinder drive, can tilt orbit in rolling make walking beam rise or fall as sport. The upper roller direct tugged walking beam, and walking beam is driven by two other hydraulic cylinder, realize the shift movement. KeyWords ： stepping beam furnace ， walking beam ， double inclined rail rail agencies， hydraulic transmission 目 錄 III 目 錄 摘 要 ........................................................................................................................ I Abstract ..........................................................................................................................II 1 緒論 ......................................................................................................................... 1 步進(jìn)式加熱爐 ................................................................................................. 1 步進(jìn)式加熱爐概述 ............................................................................... 1 選題背景 ............................................................................................... 4 設(shè)計(jì)目的 ............................................................................................... 5 設(shè)計(jì)方案 ............................................................................................... 7 2 液壓系統(tǒng)分析與設(shè)計(jì) ............................................................................................. 9 運(yùn)動(dòng)與負(fù)載分析 ............................................................................................. 9 步進(jìn)式加熱爐原始數(shù)據(jù) ....................................................................... 9 步進(jìn)式加熱爐工況速度曲線設(shè)計(jì) ....................................................... 9 計(jì)算穩(wěn)態(tài)工作負(fù)載 ............................................................................. 11 擬定液壓原理圖 ................................................................................. 12 液壓缸參數(shù)及其型號(hào) ................................................................................... 13 平移液壓缸受力分析 ......................................................................... 13 初選平移液壓系統(tǒng)工作壓力 ............................................................. 14 平移液壓缸主要參數(shù)及其選取型號(hào) ................................................. 14 升降液壓缸受力分析 ......................................................................... 16 初選升降液壓系統(tǒng)工作壓力 ............................................................. 18 升降液壓缸主要參數(shù)及其選取型號(hào) ................................................. 18 液壓泵參數(shù)及其型號(hào) ................................................................................... 19 平移液壓泵工作壓力的確定 ............................................................. 19 平移液壓泵流量的確定 ..................................................................... 19 平移液壓泵的選取 ............................................................................. 20 升降液壓泵工作壓力的確定 ............................................................. 20 升降液壓泵流量的確定 ..................................................................... 20 目 錄 IV 升降液壓泵的選取 ............................................................................. 20 電動(dòng)機(jī)參數(shù)及其型號(hào) ................................................................................... 21 平移液壓系統(tǒng)電動(dòng)機(jī)參 數(shù)及其型號(hào) ................................................. 21 升降液壓系統(tǒng)電動(dòng)機(jī)參數(shù)及其型號(hào) ................................................. 21 液壓閥件參數(shù)及其型號(hào) ............................................................................... 22 平移液壓系統(tǒng)閥件參數(shù)及其 型號(hào) ..................................................... 22 升降液壓系統(tǒng)閥件參數(shù)及其型號(hào) ..................................................... 22 液壓油管道的選擇 ....................................................................................... 22 油管的選用 ......................................................................................... 22 液壓油管管徑的確定 ......................................................................... 23 液壓油管管壁厚的驗(yàn)算 ..................................................................... 23 液壓油管道的選擇 ....................................................................................... 24 平移液壓系統(tǒng)油箱有效容積 ............................................................. 24 升降液壓系統(tǒng)油箱有效容積 ............................................................. 24 3 液壓系統(tǒng)性能驗(yàn)算 ............................................................................................... 25 液壓系統(tǒng)壓力損失計(jì)算 ............................................................................... 25 平移液壓系統(tǒng)壓力損失 ..................................................................... 25 升降液壓系統(tǒng)壓力損失 ..................................................................... 26 液壓系統(tǒng)發(fā)熱溫升計(jì)算 ............................................................................... 26 平移液壓系統(tǒng)發(fā)熱溫升 ..................................................................... 27 升降液壓系統(tǒng)發(fā)熱溫升 ..................................................................... 27 4 液壓同步控制系統(tǒng)的設(shè)計(jì) ................................................................................... 29 控制系統(tǒng) ....................................................................................................... 29 電液比例位置控制系統(tǒng) ..................................................................... 29 設(shè)計(jì)方案 ............................................................................................. 30 傳感器的選擇 ....................................................... 錯(cuò)誤 !未定義書(shū)簽。熱軋寬帶鋼廠的規(guī)模正向大型化發(fā)展，步進(jìn)梁式爐的特點(diǎn)之一是爐長(zhǎng)不受推鋼長(zhǎng)度限制，因而能適應(yīng)軋機(jī) 的小時(shí)產(chǎn)量增長(zhǎng)的形勢(shì)。 與推鋼式加熱爐一樣，為了滿足加熱大鋼坯的需要，步進(jìn)式爐也逐步發(fā) 展了下加熱的方式，出現(xiàn)了上下加熱的步進(jìn)式加熱爐。上步進(jìn)梁通過(guò)輥輪作用在下步進(jìn)梁上，下步進(jìn)梁通過(guò)傾斜滑塊支承在輥?zhàn)由?。如何設(shè)計(jì)高質(zhì)量的液壓裝置則直接成為影響鋼坯的燒結(jié)質(zhì)量。 選題背景 軋鋼廠在熱軋鋼材時(shí)，需要對(duì)鋼坯進(jìn)行加熱。 本課題的設(shè)計(jì)內(nèi)容是設(shè)計(jì)一個(gè)步進(jìn)式加熱爐同步頂升的液壓系統(tǒng)。對(duì)連續(xù)加熱爐來(lái)說(shuō)爐長(zhǎng)受到推鋼長(zhǎng)度的限制，而步進(jìn)爐則不受限制。行進(jìn)框架是通過(guò)支撐輥和輥道落在升降框 架上，升降框架也通過(guò)支撐輥和輥道落在基礎(chǔ)上。在 內(nèi)達(dá)到 ，然后直接減速，在 的時(shí)間