【正文】 .............. 1 液壓系統(tǒng)的形式 ................................................................................................... 1 液壓系統(tǒng)的發(fā)展概況和應(yīng)用 ................................................................................. 2 2 總體方案 ........................................................................................................................... 7 設(shè)計(jì)原理 ..................................................................................................................... 7 剪切系統(tǒng)設(shè)計(jì) ............................................................................................................. 8 剪切系統(tǒng)工況要求 ................................................................................................ 8 液壓缸結(jié)構(gòu) ........................................................................................................... 9 液壓缸的效率 ....................................................................................................... 9 液壓缸缸徑的計(jì)算 ...............................................................................................10 流量的計(jì)算 ..........................................................................................................11 最小導(dǎo)向長度的確定 ...........................................................................................12 活塞寬度 的確定 ..............................................................................................12 缸體長度的確定 ..................................................................................................12 缸筒壁厚的計(jì)算 ..................................................................................................13 缸體外徑尺寸的計(jì)算 .........................................................................................13 活塞桿強(qiáng)度和液壓缸穩(wěn)定性計(jì)算 .......................................................................14 缸筒壁厚的驗(yàn)算 .................................................................................................16 缸筒的加工要求 .................................................................................................18 法蘭設(shè)計(jì) ............................................................................................................18 缸底厚度設(shè)計(jì) ....................................................................................................19 (缸筒端部）法蘭連接螺栓的強(qiáng)度計(jì)算 ...............................................................20 B IV 活塞設(shè)計(jì) ............................................................................................................22 密封件的選用 ....................................................................................................23 活塞桿的設(shè)計(jì) ....................................................................................................24 緩沖裝置和排氣閥 .............................................................................................25 對焊前后液壓系統(tǒng)設(shè)計(jì) ..............................................................................................27 對焊前后液壓系統(tǒng) 的已知數(shù)據(jù)要求 .....................................................................27 液壓缸的效率 ......................................................................................................27 液壓缸缸徑的計(jì)算 ...............................................................................................27 活塞進(jìn)程和回程速度計(jì)算 ....................................................................................28 最小導(dǎo)向長度的確定 ...........................................................................................29 活塞寬度 B 的確定 ...............................................................................................29 缸體長度的確定 ..................................................................................................29 缸筒壁厚的計(jì)算： ...............................................................................................29 缸體外徑尺寸的計(jì)算 .........................................................................................30 活塞桿強(qiáng)度和液壓缸穩(wěn)定性計(jì)算 .......................................................................30 缸筒壁厚的驗(yàn)算 .................................................................................................31 缸筒的加工要求 .................................................................................................32 法蘭設(shè)計(jì) ............................................................................................................32 缸底厚度設(shè)計(jì) ....................................................................................................33 法蘭連接螺栓的強(qiáng)度計(jì)算 ..................................................................................34 其余設(shè)計(jì) ............................................................................................................35 液壓泵的選擇 ............................................................................................................35 確定液壓泵的最大工作壓力 ................................................................................35 確定液壓泵的流量 ...............................................................................................35 確定液壓泵的驅(qū)動功率 .......................................................................................36 液壓閥和過濾器的選 擇 ..............................................................................................38 集成塊 .......................................................................................................................39 集成塊的設(shè)計(jì)原則 ...............................................................................................39 集成塊的結(jié)構(gòu)設(shè)計(jì) ...............................................................................................39 集成塊的設(shè)計(jì)結(jié)果 ...............................................................................................40 V 裝配與調(diào)試 ..........................................................................................................42 液壓油的選取 ............................................................................................................42 選擇液壓油的依據(jù) ...