本文選題：剪叉升降平臺 + 液壓同步�。� 參考：《昆明理工大學(xué)》2012年碩士論文

【摘要】：隨著我國制造業(yè)的高速發(fā)展,升降平臺已經(jīng)成為自動生產(chǎn)線上的一個重要環(huán)節(jié)。企業(yè)產(chǎn)能規(guī)模的擴(kuò)大,研究升降平臺在生產(chǎn)線有限的空間承受更大的載荷是具有現(xiàn)實(shí)的意義。 本文主要是研究在銅電解陽極板準(zhǔn)備機(jī)組受板裝置中的升降平臺。根據(jù)設(shè)計(jì)和使用要求,首先對目前運(yùn)用比較廣泛的水平驅(qū)動剪叉升降平臺、鉸接單油缸驅(qū)動剪叉升降平臺兩種方案進(jìn)行運(yùn)動及力學(xué)分析。提出四油缸對稱驅(qū)動重載剪式升降平臺的設(shè)計(jì),對該升降平臺進(jìn)行力學(xué)分析,得出油缸驅(qū)動力只需鉸接單油缸驅(qū)動剪叉升降平臺1/4。若四油缸安裝與水平線夾角相等,中間的鉸鏈軸剪切力理論計(jì)算為零,非常利于重載情況。 其次對液壓同步系統(tǒng)分析比較,提出用同步閥液壓同步系統(tǒng)來保證四液壓缸的同步運(yùn)動。用SolidEdge對升降平臺整體及主要零部件進(jìn)行三維實(shí)體建模,將實(shí)體模型導(dǎo)入ANSYS中進(jìn)行有限元分析。 最后對升降平臺在起始位置即最差工況下的主體結(jié)構(gòu)進(jìn)行了有限元強(qiáng)度分析研究。對鉸鏈軸承用彈簧單元進(jìn)行處理,在滿載荷的情況,得出結(jié)構(gòu)應(yīng)力分布圖,整個系統(tǒng)主體結(jié)構(gòu)的應(yīng)力在190MPa以內(nèi)。升降平臺主要整體結(jié)構(gòu)應(yīng)力分析后最大值都在45鋼屈服應(yīng)力范圍。從分析結(jié)果看,均得到了滿意的效果,對稱驅(qū)動重載剪式升降平臺整體結(jié)構(gòu)強(qiáng)度符合設(shè)計(jì)要求。 隨著我國工業(yè)自動化的快速推進(jìn),重載升降平臺的使用面、服務(wù)領(lǐng)域不斷擴(kuò)大。論文的研究方法具有一定的工程實(shí)用價值和較廣的適用性,它對于同類結(jié)構(gòu)的設(shè)計(jì)和結(jié)構(gòu)改造有重要的借鑒作用。
[Abstract]:With the rapid development of China's manufacturing industry, lifting platform has become an important part of automatic production line. With the expansion of production capacity scale, it is of practical significance to study the lifting platform to bear more loads in the limited space of production line. This paper mainly studies the lifting platform in copper electrolytic anode plate preparation unit. According to the requirements of design and application, the motion and mechanics analysis of two schemes, which are widely used at present, namely, horizontal driven fork lifting platform and hinged single oil cylinder driven fork lifting platform, is carried out. The design of four-cylinder symmetrical drive heavy load shear lifting platform is put forward, and the mechanical analysis of the lifting platform is carried out. It is concluded that the driving force of oil cylinder only needs to be hinged to single oil cylinder to drive the shear fork lift platform 1 / 4. If the angle between the four cylinder mounting and the horizontal line is equal, the central hinge shaft shear force is calculated to be zero, which is very favorable for heavy loading. Secondly, by analyzing and comparing the hydraulic synchronization system, the synchronous valve hydraulic synchronization system is proposed to ensure the synchronous motion of the four hydraulic cylinders. SolidEdge is used to model the whole and main parts of the lifting platform, and the solid model is introduced into ANSYS for finite element analysis. At last, the finite element strength analysis of the main structure in the starting position, that is, the worst working condition, is carried out. In the case of full load, the stress distribution diagram of the structure is obtained, and the stress of the whole system is within 190MPa. The maximum value of stress analysis of the main integral structure of lifting platform is in the yield stress range of 45 steel. From the analysis results, satisfactory results are obtained, and the overall structural strength of the symmetrical drive heavy load shear lifting platform meets the design requirements. With the rapid development of China's industrial automation and the use of heavy lift platform, the service field is expanding. The research method of this paper has certain engineering practical value and wide applicability, and it has important reference function for the design and reconstruction of similar structures.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH211.6

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