【正文】 條件計算張力 .......................................................................................... 14 滿足輸送帶垂度所需張力 ................................................................................... 15 輸送帶強(qiáng)度校驗 .......................................................................................................... 16 電動機(jī)功率校驗 .......................................................................................................... 17 第 4章 大巷電機(jī)車的選型計算 .............................................................................................. 18 電機(jī)車及礦車的初選 ................................................................................................. 18 列車組成的計算 .......................................................................................................... 18 按粘著力計算 .................................................................................................... 19 按牽引電動機(jī)溫升計算 ...................................................................................... 20 按制動條件計算 ................................................................................................. 21 列車組成的確定 ................................................................................................. 22 電動機(jī)臺數(shù)的計算 ...................................................................................................... 22 一臺機(jī)車在一個工作班內(nèi)能往返運(yùn)行的次數(shù) ....................................................... 22 每班運(yùn)煤所需列車數(shù) .......................................................................................... 23 每班運(yùn)送總次數(shù) ................................................................................................. 23 工作機(jī)車臺數(shù) .................................................................................................... 23 備用與檢修臺數(shù) ................................................................................................. 23 所需機(jī)車總數(shù) .................................................................................................... 23 第 5章 主井提升設(shè)備選型計算 .............................................................................................. 24 箕斗的選擇 ................................................................................................................. 24 確定合理的經(jīng)濟(jì)速度 .......................................................................................... 24 估算一次提升循環(huán)時間 39。xT .................................................................................. 25 平頂山工業(yè)職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計說明書（論文） 2 2 確定一次合理提升量 39。Q ..................................................................................... 25 選擇標(biāo)準(zhǔn)箕斗 .................................................................................................... 25 選擇提升鋼絲繩 .......................................................................................................... 26 單繩端荷重 ........................................................................................................ 26 鋼絲繩懸垂長度 ................................................................................................. 26 鋼絲繩單位長度質(zhì)量 .......................................................................................... 27 鋼絲繩安全系數(shù)校核 ......................................................................................... 27 鋼絲繩的使用與維護(hù) .......................................................................................... 27 鋼絲繩的檢查和試驗 .......................................................................................... 28 選擇提升機(jī)和天輪 .................................................................................................... 28 提升機(jī)卷筒直徑 D ............................................................................................. 28 實(shí)際需要卷筒的容繩寬度 ................................................................................... 29 計算實(shí)際纏繞層數(shù) ............................................................................................. 29 鋼絲繩實(shí)際最大靜張力的校驗 ............................................................................ 29 鋼絲繩實(shí)際最大靜張力差的校驗 ........................................................................ 29 天輪的選擇 ........................................................................................................ 30 提升機(jī)與井筒相對位置的計算 ..................................................................................... 30 確定井架高度 .................................................................................................... 30 計算卷筒中心至井筒中鋼絲繩間的水平距離 ....................................................... 30 計算鋼絲繩弦長 ................................................................................................. 30 鋼 絲繩最大外偏角 ............................................................................................. 31 鋼絲繩最大內(nèi)偏角 ............................................................................................. 31 鋼絲繩下出繩角 ................................................................................................. 31 預(yù)選提升電動機(jī) ........................................................................................................ 31 確定電機(jī)額定轉(zhuǎn)數(shù) ............................................................................................. 32 預(yù)選電動機(jī)功率 ................................................................................................. 32 電動機(jī)額定拖動力 ............................................................................................. 32 提升系統(tǒng)總變位質(zhì)量 ................................................................................................... 33 電動機(jī)轉(zhuǎn)子變位質(zhì)量 .......................................................................................... 33 提升機(jī)變位質(zhì)量 ................................................................................................. 33 天輪變位質(zhì)量 .................................