QD10t-22.5m 箱型雙梁橋式起重機主梁及端梁設計（含CAD圖紙和說明書）,QD10t-22.5m,箱型雙梁橋式起重機主梁及端梁設計（含CAD圖紙和說明書）,QD10t,22.5,箱型雙梁,橋式起重機,設計,CAD,圖紙,說明書 摘 要 起重機中種數(shù)量最多，在大小工廠之中均有應用的就是小噸位的起重機，小噸位的橋式起重機廣泛的用于輕量工件的吊運，在我國機械工業(yè)中占有十分重要的地位。但是，我國現(xiàn)在應用的各大起重機還是仿造國外落后技術制造出來的，而且已經(jīng)在工廠內(nèi)應用了多年，有些甚至還是七八十年代的產(chǎn)品，無論在質(zhì)量上還是在功能上都滿足不了日益增長的工業(yè)需求。如何設計使其成本最低化，布置合理化，功能現(xiàn)代化是我們研究的課題。 雙梁箱型橋式起重機,是分別驅(qū)動起重機，額定起重量為10噸，起升高度為12m，跨度為22.5m，整機高度受到廠房的限制。 本設計采用許用應力法以及計算機輔助設計方法對橋式起重機橋架金屬結構進行設計。設計過程先用估計的橋式起重機各結構尺寸數(shù)據(jù)對起重機的強度、疲勞強度、穩(wěn)定性、剛度進行粗略的校核計算，待以上因素都達到材料的許用要求后，畫出橋架結構圖。然后計算出主梁和端梁的自重載荷，再用此載荷進行橋架強度和剛度的精確校核計算。 關鍵詞：起重機 大車運行機構 主端梁 ABSTRACT The largest number of species of cranes, both in the size of the factory into the application is small tonnage cranes, bridge cranes small tonnage of lightweight parts for a wide range of lifting, in China's machinery industry plays a very important position. However, our current application, or copy large crane behind the technology produced abroad, and has been applied in the factory for many years, and some 70 to 80 years of products, both in quality or functionality are not growing to meet the industrial demand. How to design it the lowest cost, rationalize the layout, function modernization is the subject of our study. Double beam box bridge type，the sum settles to rise the weight as 10 tons, rising to go up the degree as 12 ms, across the degree as 22.5 ms, the whole machine is limited by the factory premises highly. The project designs metal framework of bridge crane in use of allowable stress method and CAD. At first , I chose size assumable. Then, proofread the size. KEYWORDS：Crane The moving mainframe Main beam and end beam