【正文】 .............................. 15 50t 吊鉤組計(jì)算 ..................................................................................................................... 27 副起升機(jī)構(gòu)設(shè)計(jì) ................................................................................................................................. 39 回轉(zhuǎn)機(jī)構(gòu)設(shè)計(jì) .................................................................................................................................... 45 由 SWL 引起的載荷 ................................................................................................................. 45 由于臂架引起的載荷 ............................................................................................................. 48 由于油缸引起的載荷 ............................................................................................................. 52 由轉(zhuǎn)臺(tái)機(jī)房引起的載荷 ......................................................................................................... 54 計(jì)算載荷匯總 ......................................................................................................................... 56 回轉(zhuǎn)大軸承選型 ..................................................................................................................... 57 回轉(zhuǎn)減速機(jī)選型 ..................................................................................................................... 58 主變幅機(jī)構(gòu)設(shè)計(jì) ................................................................................................................................. 68 ................................................................................................................................ 68 設(shè)計(jì)載荷計(jì)算 ......................................................................................................................... 68 主臂架變幅油缸最大推力計(jì)算 ............................................................................................. 73 變幅油缸缸徑計(jì)算、行程確定及選型 ................................................................................. 74 主變幅油缸壓桿穩(wěn)定性計(jì)算 ................................................................................................. 75 變幅油缸流量、工作壓力及功率計(jì)算 ................................................................................. 76 各工況計(jì)算結(jié)果統(tǒng)計(jì) ............................................................................................................. 76 主變幅油缸裝配銷軸校核 ..................................................................................................... 77 副變幅機(jī)構(gòu)設(shè)計(jì) ................................................................................................................................. 79 ................................................................................................................................ 79 設(shè)計(jì)載荷計(jì)算 ......................................................................................................................... 79 副變幅油缸最大推力計(jì)算 ..................................................................................................... 83 變幅油缸缸徑計(jì)算、行程確定及選型 ................................................................................. 84 油缸選型 ................................................................................................................................. 84 副變幅油缸壓桿穩(wěn)定性計(jì)算 ................................................................................................. 84 變幅油缸流量、工作壓力及功率計(jì)算 ................................................................................. 85 副 變幅油缸裝配銷軸校核 ..................................................................................................... 86 II 第 3 章 液壓系統(tǒng)設(shè)計(jì) .................................................................................................................................... 88 主液壓泵站選型設(shè)計(jì) ......................................................................................................................... 88 系統(tǒng)主要執(zhí)行元件最大工作情況匯總 ................................................................................. 88 主泵組驅(qū)動(dòng)電機(jī)選型計(jì)算 ..................................................................................................... 88 主泵組液壓泵選型計(jì)算 ......................................................................................................... 90 應(yīng)急備用泵組選型設(shè)計(jì) ..................................................................................................................... 91 應(yīng)急備用泵驅(qū)動(dòng)電機(jī)選型 ..................................................................................................... 91 應(yīng)急備用泵選型計(jì)算 ............................................................................................................. 91 液壓泵控制形式 ................................................................................................................................. 92 液壓油箱及其附件選型 ..................................................................................................................... 92 液壓油箱容積計(jì)算 ................................................................................................................. 92 油箱附件 ................................................................................................................................. 92 循環(huán)過(guò)濾冷卻泵組 ................................................................................................................. 92 CVG 主控制閥塊 ................................................................................................................................. 93 進(jìn)油模塊 ................................................................................................................................. 93 控制模塊 ................................................................................................................................ 93 尾部模塊 ................................................................................................................................ 94 回轉(zhuǎn)馬達(dá)平衡安全閥塊 ........................................................................................