5010t跨度28m的雙粱橋式起重機(jī)結(jié)構(gòu)設(shè)計(jì)畢業(yè)論文-在線瀏覽
2024-08-02 12:29本頁(yè)面
【正文】 1) 垂直載荷2)移動(dòng)載荷作用下主梁的內(nèi)力3)水平位置4) 強(qiáng)度5)主梁跨端的切應(yīng)力6) 主梁疲勞強(qiáng)度7)主梁穩(wěn)定性1）垂直載荷2）水平載荷3）強(qiáng)度4）疲勞強(qiáng)度5）端梁中央拼接截面6）穩(wěn)定性7）端梁拼接8）翼緣拼接9）腹板拼接10）端梁拼接強(qiáng)度1）橋架的垂直靜剛度2）水平動(dòng)剛度 第一章 橋式起重機(jī)金屬結(jié)構(gòu)設(shè)計(jì)參數(shù)表11 設(shè)計(jì)參數(shù)起重機(jī)類(lèi)型通用工作級(jí)別A6軌道放置中軌橋架形式雙梁50/10t28m起升機(jī)構(gòu)主起升副起升額定起重量（噸）5010起升高度(米)1218起升速度(米/分)工作級(jí)別M6M5運(yùn)行結(jié)構(gòu)大車(chē)小車(chē)輪距（米）5軌距（米）28速度（米/分）——工作級(jí)別M6M5輪壓（MPa）441軌道型號(hào)QU80P43第二章 總體設(shè)計(jì)=（）L=（）=~ m根據(jù)小車(chē)軌距和中軌箱型梁寬度以及大車(chē)運(yùn)行機(jī)構(gòu)的設(shè)置，取=5 m端梁全長(zhǎng)B=高度h=（）L=1821~1500 mm 取腹板高度 =1600 mm腹板厚度 =6 mm翼緣板厚度 =24 mm主梁總高度 =+2=1648 mm主梁寬度 b=(~)=648~810 mm字腹板外側(cè)間距 b=760 mm=425 mm 且=540 mm上下翼緣板相同為24 mm600 mm主梁端部變截面長(zhǎng)取 d=2350 mm.圖21 雙梁橋架結(jié)構(gòu)第三章 主端梁截面積幾何性質(zhì)圖31 主梁與端梁截面a) 主梁截面 A=(60024+16006)2 =慣性矩= = mm4= = mm4b)端梁截面A= =36160 mm2== = mm4= = mm4第四章 載荷主梁自重載荷 = = = N小車(chē)軌道重= = N/m欄桿等重量=g= =981 N/m主梁的均布載荷 =++= N/m起升載荷為 =g = =49000 N小車(chē)自重 ==170422 N小車(chē)自重載荷 =mg = = N小車(chē)重力產(chǎn)生的靜輪壓和= = =50666 N= = N額定起升載荷產(chǎn)生的和P01= = NP02= = N=+= N= P02+= N小車(chē)輪壓=+= N空載輪壓 = N= N1=2=1+ =1+ ==1.+ =+ =h=1 mm,接頭高度差大小車(chē)都是4個(gè)車(chē)輪，其中主動(dòng)輪各占一半，按車(chē)輪打滑條件確定大小車(chē)運(yùn)行的慣性力一根主梁上的小車(chē)慣性力為== N大車(chē)運(yùn)行起制動(dòng)慣性力（一根主梁上）為== N= = N/m主梁跨端設(shè)備慣性力影響力小，忽略一根主梁的重量力=() = N一根端梁?jiǎn)挝婚L(zhǎng)度的重量= = = N一根端梁的重量為=B = = N一組大車(chē)運(yùn)行機(jī)構(gòu)的重量（兩組對(duì)稱(chēng)配置）為=g=5623/= N左側(cè)端梁總靜輪壓按圖41計(jì)算圖41 端梁總輪壓計(jì)算= =（490000+170422）+++ = N由=28/5==側(cè)向力= = = N 滿載小車(chē)在主梁左端極限位置左側(cè)端梁總靜輪壓= =側(cè)向力 = = N估算大車(chē)輪壓P=18 t選取大車(chē)車(chē)輪直徑為800 mm,軌道為QU80. 扭轉(zhuǎn)載荷中軌梁扭轉(zhuǎn)載荷較小，且方向相反，可忽略。via CAD, ploting and calculation can make good use of powerfull puter, try hard for a high efficiency design. I knew the various of design methods, newest machine design methods both here and abroad also found various of good data.Key Words: bridge crane。 許用應(yīng)力 AbstractThe project designs metal framework of bridge crane in use of allowable stress method and CAD. At first , I chose size assumably. Then, proofreaded the size. If the proof was not passed, must choose the size again up to pass the proof. If the proof was passed, it could carry on the specific structural design. At last, it’s plot and clean up the calculation process. Designed to make reference to the various of data in the process, make use of various paths, work hard to make use of the various of condition to plete this design in reason. I considered various design projects, discussed earnestly, calculated time after time, try hard for a reasonable design。關(guān)鍵詞: 橋式起重機(jī)。通過(guò)采取計(jì)算機(jī)輔助設(shè)計(jì)方法以及參考前人的先進(jìn)經(jīng)驗(yàn), 力求有所創(chuàng)新。由于橋架的初校是在草稿中列出，在設(shè)計(jì)說(shuō)明書(shū)中不予記錄，僅記載橋架的精校過(guò)程。然后計(jì)算出主梁和端梁的自重載荷，再用此載荷進(jìn)行橋架強(qiáng)度和剛度的精確校核計(jì)算。畢 業(yè) 設(shè)
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