發(fā)布時(shí)間：2018-10-17 22:21

【摘要】：汽車起重機(jī)在起重作業(yè)中,以其移動(dòng)方便、操作靈活,在國(guó)民經(jīng)濟(jì)建設(shè)中得到廣泛應(yīng)用,而且現(xiàn)在產(chǎn)品已經(jīng)系列化。活動(dòng)支腿是汽車起重機(jī)的關(guān)鍵部件之一,它的主要作用是在作業(yè)時(shí),能使整機(jī)快速離開地面,并迅速調(diào)平,以完成移動(dòng)重物的工作。支腿設(shè)計(jì)工作量重復(fù)較大,而且結(jié)構(gòu)相近,零部件容易被系列化。本文查閱了大量計(jì)算支腿支反力的相關(guān)資料,基于目前對(duì)汽車起重機(jī)的活動(dòng)支腿結(jié)構(gòu)研究,就活動(dòng)支腿結(jié)構(gòu)型式的選擇、傳統(tǒng)的支腿支承反力計(jì)算、ANSYS分析和結(jié)構(gòu)試驗(yàn)論證,做出了論述。同時(shí)結(jié)合汽車起重機(jī)的活動(dòng)支腿結(jié)構(gòu),建立有限元模型,利用ANSYS有限元分析軟件,對(duì)汽車起重機(jī)活動(dòng)支腿結(jié)構(gòu)從剛度、強(qiáng)度兩個(gè)方面進(jìn)行分析,從而得到支腿應(yīng)力集中區(qū)域及其分布規(guī)律,以此為基礎(chǔ),對(duì)起重機(jī)的活動(dòng)支腿結(jié)構(gòu)進(jìn)行改進(jìn),改進(jìn)后的支腿用應(yīng)變片電測(cè)的方法驗(yàn)證,將試驗(yàn)結(jié)果和有限元分析結(jié)果進(jìn)行對(duì)比,支腿的改進(jìn)取得了不錯(cuò)的效果。
[Abstract]:Truck crane is widely used in the construction of national economy because of its convenient movement and flexible operation, and now the products have been serialized. The movable leg is one of the key parts of the truck crane. Its main function is to make the whole machine leave the ground quickly and adjust it quickly to finish the work of moving the heavy object. The design workload of leg is large, and the structure is similar, the parts are easy to be serialized. Based on the current research on the structure of the movable leg of the truck crane, the selection of the structure type of the movable leg, the traditional calculation of the supporting reaction force of the supporting leg, the ANSYS analysis and the structural test and demonstration are reviewed in this paper. A discussion is made. At the same time, combined with the movable leg structure of the truck crane, the finite element model is established, and the stiffness and strength of the moving leg structure of the truck crane are analyzed by using the ANSYS finite element analysis software. On the basis of this, the structure of the movable leg of the crane is improved. The improved method is verified by strain gauges, and the test results are compared with the results of finite element analysis. The improvement of the leg has achieved good results.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TH213.6

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 張強(qiáng);林博;;汽車起重機(jī)活動(dòng)支腿結(jié)構(gòu)改進(jìn)設(shè)計(jì)[J];工程機(jī)械;2011年09期

2 沈永明;;當(dāng)前我國(guó)工程起重機(jī)行業(yè)概況[J];建設(shè)機(jī)械技術(shù)與管理;2005年12期

3 寧富立;成凱;馮敏;;基于ANSYS的混凝土泵車伸縮支腿的接觸分析[J];建筑機(jī)械;2010年23期

4 盧耀祖;;汽車起重機(jī)支腿位移對(duì)臂端位移的影響[J];建筑機(jī)械化;1992年01期

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本文編號(hào)：2278204