【文章內(nèi)容簡介】 噸。（）對(duì)其一根橫梁進(jìn)行受力分析，并繪出剪力圖和彎矩圖。 副車架橫梁的剪力圖和彎矩圖 副車架橫梁的斷面尺寸腹板上切應(yīng)力 滿足 翼緣上切應(yīng)力 滿足綜合計(jì)算，副車架的設(shè)計(jì)符合要求。 本章小結(jié) 本章對(duì)隨車起重運(yùn)輸車的具體結(jié)構(gòu)進(jìn)行了設(shè)計(jì)，包括起升機(jī)構(gòu)、回轉(zhuǎn)結(jié)構(gòu)、起吊支腿等設(shè)計(jì)及相關(guān)的校核，隨車起重運(yùn)輸車在作業(yè)時(shí)要將貨物送到一定范圍內(nèi)的任意空間位置，所以回轉(zhuǎn)運(yùn)動(dòng)是必不可少的，因此，起重機(jī)的起重臂必須具有回轉(zhuǎn)功能，而且主車架將受到較大的附加集中載荷，為了保證車架的強(qiáng)度和提高整車的起重能力，必須設(shè)置支腿。此外，支腿還對(duì)起吊作業(yè)時(shí)整車的工作穩(wěn)定性有很大的影響。本章是本次設(shè)計(jì)的核心部分。結(jié)　　論隨車起重裝置是安放在載貨汽車上的一種附加起重設(shè)備。它屬于臂架型起重裝置，其運(yùn)行支承裝置采用氣輪胎，可以在無軌路面上行走，工作方便快捷。本文主要分析和計(jì)算了起升機(jī)構(gòu)、變幅機(jī)構(gòu)和回轉(zhuǎn)機(jī)構(gòu)。在起升機(jī)構(gòu)中，采用液壓泵、齒輪齒條傳動(dòng)裝置，結(jié)合使用條件和要求,選擇中間有合成MC尼龍板起到潤滑的作用。采用制造與使用方便的鍛造單鉤，矩形斷面，受力情況合理。變幅機(jī)構(gòu)中的起重臂為折臂式結(jié)構(gòu)，變幅由液壓缸實(shí)現(xiàn)，在設(shè)計(jì)中運(yùn)用力學(xué)原理計(jì)算和校核，為滿足強(qiáng)度條件，在不同部位采用不同強(qiáng)度的鋼材，實(shí)現(xiàn)科學(xué)合理?；剞D(zhuǎn)機(jī)構(gòu)由回轉(zhuǎn)支承裝置和回轉(zhuǎn)驅(qū)動(dòng)裝置組成，采用液壓缸驅(qū)動(dòng)和滾動(dòng)軸承式回轉(zhuǎn)支承裝置，并采用液壓缸—齒輪齒條傳動(dòng)—回轉(zhuǎn)支承的傳動(dòng)方案。液壓驅(qū)動(dòng)的小起重量起重機(jī)，通過液壓回路和換向閥的合適機(jī)能，使回轉(zhuǎn)機(jī)構(gòu)不裝制動(dòng)器，同時(shí)保證回轉(zhuǎn)部分在任意位置上停住，并避免沖擊。這種結(jié)構(gòu)自重輕，受力合理，運(yùn)行平穩(wěn)。與其他起重裝置相比，隨車起重裝置把起重和運(yùn)輸功能結(jié)合起來，節(jié)省勞動(dòng)力，節(jié)約能源、減少費(fèi)用，是國民經(jīng)濟(jì)建設(shè)中必不可少的一種高效、快捷、方便的起重與運(yùn)輸機(jī)械，值得我們?nèi)ピO(shè)計(jì)更好的產(chǎn)品來為社會(huì)服務(wù)。參考文獻(xiàn)[1] ，2002[2] ，1979[3] ，1987[4] ，1996[5] 倪慶興、：上海交通大學(xué)出版社，1990[6] ：中國礦業(yè)大學(xué)出版社，1995 [7]（德）：機(jī)械工業(yè)出版社，1991[8] ：水利電力出版社，1989[9] 胡宗武、：北京科學(xué)技術(shù)出版社，1989[10] ：化學(xué)工業(yè)出版社，1993[11] Ⅰ.徐州：中國礦業(yè)大學(xué)出版社，2001[12] Ⅱ.徐州：中國礦業(yè)大學(xué)出版社，2001[13] ：冶金工業(yè)出版社，1983[14] ：中國鐵道出版社，1998[15] ：科學(xué)出版社，2000[16] 顧必沖、：人民交通出版社，1993[17] 楊長、：機(jī)械工業(yè)出版社，1992[18] 車仁煒、2：536[19] ，10：228[20] ，11：117[21] ，2：339[22] ，7：421[23] [碩士學(xué)位論文].南京：南京理工大學(xué)， 2002[24] [碩士學(xué)位論文].大連：大連理工大學(xué)，2003[25] , . Tipping loads of mobile cranes with flexible booms. Ankara: Academic Pr, 1999[26] Awad , Wafik . A fuzzy logic approach to the selection of cranes. Wisconsin: Academic Pr, 1999[27] Guangfu Sun, Michael Kleeberger. Dynamic responses of hydraulic mobile crane with consideration of the drive system. Munich: Academic Pr, 2003[28] Jacek klosinski. Swingfree control of the slewing motion of a mobile crane. D epartment of mechanical engineering and puter science. 2004, 2: 43309 [29] Yehiel Rosenfeld. Automation of existing crane: from concept to prototype. Israel: Israel Institute of technology, 2005, 3113[30] Joop market surveymade in Today1998致 謝短短幾個(gè)月的畢業(yè)設(shè)計(jì)，是一次在實(shí)踐中檢驗(yàn)學(xué)習(xí)成果進(jìn)而完善知識(shí)結(jié)構(gòu),提高理論聯(lián)系實(shí)際能力的機(jī)會(huì)。感謝學(xué)校能夠給我這個(gè)自我鍛煉自我提高的的平臺(tái)！本次畢業(yè)設(shè)計(jì)，從開始選題，經(jīng)過調(diào)研并進(jìn)行可行性分析，到總體方案的制定,進(jìn)而到具體的設(shè)計(jì)過程，經(jīng)歷了近三個(gè)月的時(shí)間，最后才得以順利完成。設(shè)計(jì)期間齊老師給了我精心的指導(dǎo)和熱情的幫助，在此我向齊老師表示忠心的感謝！并向四年來精心培育我的所有老師致謝！通過本次畢業(yè)設(shè)計(jì)，四年來所學(xué)到的理論知識(shí)得到了具體的運(yùn)用并加以強(qiáng)化，實(shí)現(xiàn)了理論與實(shí)踐的結(jié)合，我非常感謝畢業(yè)設(shè)計(jì)給了我一個(gè)鍛煉自我，提高自我的機(jī)會(huì)，在這期間所學(xué)到的知識(shí)和能力對(duì)我以后的學(xué)習(xí)和生活都著重要的指導(dǎo)意義。所以我非常珍惜這次機(jī)會(huì)。在以后的學(xué)習(xí)和生活中，我將時(shí)時(shí)牢記齊老師的諄諄教導(dǎo)，繼續(xù)加強(qiáng)學(xué)習(xí)，完善知識(shí)結(jié)構(gòu)，不斷提高和完善自我，給自己，也給所有關(guān)心我的人一份滿意的人生答卷！謝謝！附 錄外文文獻(xiàn)原文：The Introduction of cranesA crane is defined as a mechanism for lifting and lowering loads with a hoisting mechanism Shapiro, 1991. Cranes are the most useful and versatile piece of equipment on a vast majority of construction projects. They vary widely in configuration, capacity, mode of operation, intensity of utilization and cost. On a large project, a contractor may have an assortment of cranes for different purposes. Small mobile hydraulic cranes may be used for unloading materials from trucks and for small concrete placement operations, while larger crawler and tower cranes may be used for the erection and removal of forms, the installation of steel reinforcement, the placement of concrete, and the erection of structural steel and precast concrete beams. On many construction sites a crane is needed to lift loads such as concrete skips, reinforcement, and formwork. As the lifting needs of the construction industry have increased and diversified, a large number of general and special purpose cranes have been designed and manufactured. These cranes fall into two categories, those employed in industry and those employed in construction. The most mon types of cranes used in construction are mobile, tower, and derrick cranes.1. Mobile cranesA mobile crane is a crane capable of moving under its own power without being restricted to predetermined travel. Mobility is provided by mounting or integrating the crane with trucks or all terrain carriers or rough terrain carriers or by providing crawlers. Truckmounted cranes have the advantage of being able to move under their own power to the construction site. Additionally, mobile cranes can move about the site, and are often able to do the work of several stationary units.Mobile cranes are used for loading, mounting, carrying large loads and for work performed in the presence of obstacles of various kinds such as power lines and similar technological installations. The essential difficulty is here the swinging of the payload which occurs during working motion and also after the work is pleted. This applies particularly to the slewing motion of the crane chassis, for which relatively large angular accelerations and negative accelerations of the chassis are characteristic. Inertia forces together with the centrifugal force and the Carioles force cause the payload to swing as a spherical pendulum. Proper control of the slewing motion of the crane serving to transport a payload to the defined point with simultaneous minimization of the swings when the working motion is finished plays an important role in the model.Modern mobile cranes include the drive and the control systems. Control systems send the feedback signals from the mechanical structure to the drive systems. In general, they are closed chain mechanisms with flexible members [1].Rotation, load and boom hoisting are fundamental motions the mobile crane. During transfer of the load as well as at the end of the motion process, the motor drive forces, the structure inertia forces, the wind forces and the load inertia forces can result in substantial, undesired oscillations in crane. The structure inertia forces and the load inertia forces can be evaluated with numerical methods, such as the finite element method. However, the drive forces are difficult to describe. During startup and breaking the output force