【正文】 ...............................................................................................32 4 軸的設(shè)計(jì)計(jì)算 ................................................. 38 高速軸設(shè)計(jì)計(jì)算 ........................................................................................ 38 計(jì)算作用在齒輪上的力 ...................................................................................................38 初步估算軸的直徑 ............................................................................................................38 軸的結(jié)構(gòu)設(shè)計(jì) ....................................................................................................................39 低速軸設(shè)計(jì)計(jì)算 ........................................................................................ 42 計(jì)算作用在齒輪上的力 ...................................................................................................42 初步估算軸的直徑 ............................................................................................................42 軸的結(jié)構(gòu)設(shè)計(jì) ....................................................................................................................43 繪制軸的彎矩圖和扭矩圖 ...............................................................................................43 4． 按彎扭合成強(qiáng)度校核軸的強(qiáng)度 ....................................................................................46 行星輪軸的設(shè)計(jì)計(jì)算 ............................................................................... 46 計(jì)算作用在齒輪上的力 ...................................................................................................46 初步估算軸的直徑 ............................................................................................................47 軸的結(jié)構(gòu)設(shè)計(jì) ....................................................................................................................47 繪制軸的彎矩圖和扭矩圖 ...............................................................................................48 5 滾動軸承的選擇和計(jì)算 ......................................... 58 行星輪軸承 ............................................................................................... 58 第一組 .................................................................................................................................58 第二組 .................................................................................................................................59 第三組 .................................................................................................................................60 其它軸承 ................................................................................................... 60 6 鍵的選擇和計(jì)算 ............................................... 62 高速軸 ....................................................................................................... 62 低速軸 ....................................................................................................... 62 7 液壓系統(tǒng)設(shè)計(jì) ................................................. 64 中國礦業(yè)大學(xué) 2021 屆本科生畢業(yè)設(shè)計(jì) 第 4 頁 液壓系統(tǒng)方案設(shè)計(jì) .................................................................................. 64 確定回路方式 ....................................................................................................................64 選用液壓油液 ....................................................................................................................64 初定系統(tǒng)壓力 ....................................................................................................................64 選擇執(zhí)行元件 ....................................................................................................................64 確定液壓泵類型 ................................................................................................................65 選擇換向回路 ....................................................................................................................65 繪制液壓系統(tǒng)原理圖 ........................................................................................................65 液壓泵的選擇 .......................................................................................... 66 液壓泵的選擇 ....................................................................................................................66 電動機(jī)的功率計(jì)算 ............................................................................................................67 電動機(jī)的安裝形式 ............................................................................................................67 液壓控制元件和裝置的選擇 .................................................................. 68 液壓元件的選取 ................................................................................................................68 液壓輔助元件選擇與設(shè)計(jì) ..............................................................................................69 油箱的設(shè)計(jì)和計(jì)算 ............................................................................................................71 液壓泵組的連接和安裝方式 ...........................................................................................74 閥塊的設(shè)計(jì) .............................................................................................. 75 設(shè)計(jì)閥塊時應(yīng)注意以下幾點(diǎn) ..........................................................................................75 液壓閥塊的結(jié)構(gòu) ...............................................................................................................75 液壓閥塊設(shè)計(jì) ...................................................................................................................76 液壓系統(tǒng)的調(diào)試 ...................................................................................... 78 液壓系統(tǒng)的合理使用 .............................................................................. 79 液壓系統(tǒng)的電氣控制 .............................................................................. 81 PLC 設(shè)計(jì) ................................................................................................... 81 8 絞車使用說明 ................................................. 82