【正文】 ............................................................................................................. 29 供貨范圍 ................................................................................................................................................... 29 交貨條件 ................................................................................................................................................... 30 3 起重機適用的自然條件 ................................................................................................................................... 31 4 標準和規(guī)范 ........................................................................................................................................................ 32 5 主要技術(shù)參數(shù)要求 ........................................................................................................................................... 32 6 工作級別 ............................................................................................................................................................ 33 起重機工作級別 ........................................................................................................................................ 33 各機構(gòu)工作級別 ....................................................................................................................................... 33 起重機整機穩(wěn)定性和抗風防滑安全性 ................................................................................................. 33 7 材料和制造工藝 ............................................................................................................................................... 33 材料 ........................................................................................................................................................... 33 制造工藝 ................................................................................................................................................... 34 8 金屬結(jié)構(gòu) ............................................................................................................................................................ 35 一般要求 ................................................................................................................................................... 35 門架、臂架 ............................................................................................................................................... 35 機器房 ....................................................................................................................................................... 36 電氣房 ....................................................................................................................................................... 36 司機室 ....................................................................................................................................................... 37 平臺、走道、梯子和欄桿 ...................................................................................................................... 38 9 機構(gòu) .................................................................................................................................................................... 38 一般要求 ................................................................................................................................................... 38 起升機構(gòu) ................................................................................................................................................... 39 變幅機構(gòu) ................................................................................................................................................... 39 旋轉(zhuǎn)機構(gòu) ................................................................................................................................................... 39 行走機構(gòu) ................................................................................................................................................... 40 防風安全裝置 ........................................................................................................................................... 40 電纜卷筒裝置 ........................................................................................................................................... 41 10 主要零部件 ...................................................................................................................................................... 41 鋼絲繩 ..................................................................................................................................................... 41 鋼絲繩卷筒 ............................................................................................................................................. 41 滑輪 ......................................................................................................................................................... 42 聯(lián)軸器 ..................................................................................................................................................... 42 減速器 ..................................................................................................................................................... 42 車輪 ......................................................................................................................................................... 43 軸承 ......................................................................................................................................................... 43 制動器 ..................................................................................................................................................... 43 緩沖器 .................................................................................................................................................