本文選題：軋機(jī)　切入點(diǎn)：傳動(dòng)軸　出處：《安徽工業(yè)大學(xué)》2017年碩士論文

【摘要】：軋機(jī)是軋制線上使軋件發(fā)生塑性變形的重要設(shè)備,軋機(jī)傳動(dòng)軸的功能是將電機(jī)的轉(zhuǎn)動(dòng)和力矩傳遞到工作機(jī)架的軋輥上,所以軋機(jī)主傳動(dòng)裝置對(duì)于軋機(jī)能否正常工作起到了至關(guān)重要的作用。伴隨社會(huì)對(duì)軋制品數(shù)目需求的激烈猛增以及對(duì)該產(chǎn)品的品質(zhì)要求不斷提升,軋機(jī)主傳動(dòng)裝置的承載能力也在經(jīng)歷著嚴(yán)峻的考驗(yàn)。不久以前,某鋼廠粗軋機(jī)的傳動(dòng)軸在裝軸承處發(fā)生斷裂事故,本文以該鋼廠粗軋機(jī)的主傳動(dòng)裝置為分析對(duì)象,經(jīng)過對(duì)軋機(jī)傳動(dòng)軸斷裂現(xiàn)場(chǎng)的調(diào)研,從多方面展開對(duì)傳動(dòng)軸的研究,具體研究?jī)?nèi)容如下:(1)首先根據(jù)軋機(jī)主傳動(dòng)軸的斷裂事故,從軋機(jī)的操作工藝、設(shè)備設(shè)計(jì)、設(shè)備維護(hù)以及宏觀斷口等多方面進(jìn)行分析,查找R2軋機(jī)傳動(dòng)軸的斷裂原因。(2)其次將某鋼廠軋機(jī)主傳動(dòng)裝置中的構(gòu)件進(jìn)行適當(dāng)簡(jiǎn)化,根據(jù)軋機(jī)主傳動(dòng)裝置的尺寸參數(shù),建立軋機(jī)主傳動(dòng)裝置的三維模型。(3)軋機(jī)主傳動(dòng)裝置中支撐平衡裝置提供的平衡力對(duì)于傳動(dòng)軸的應(yīng)力分布影響很大,通過對(duì)該裝置進(jìn)行力學(xué)分析,建立各構(gòu)件的平衡方程,從而推導(dǎo)出傳動(dòng)軸受到的平衡力與液壓缸驅(qū)動(dòng)力之間的函數(shù)關(guān)系式。(4)根據(jù)傳動(dòng)軸受到的平衡力與液壓缸驅(qū)動(dòng)力之間函數(shù)關(guān)系式,在MATLAB中編寫平衡力的程序語(yǔ)言,計(jì)算出傳動(dòng)軸受到平衡力的最大值以及所在工況的角度。(5)將軋機(jī)主傳動(dòng)裝置的三維模型導(dǎo)入ADAMS中進(jìn)行動(dòng)力學(xué)仿真,提取傳動(dòng)軸受到平衡力的最大值以及所在工況的角度,并和理論計(jì)算對(duì)比分析。(6)根據(jù)分析的結(jié)論,將軋機(jī)傳動(dòng)軸放在危險(xiǎn)角度下進(jìn)行力學(xué)計(jì)算。研究了傳動(dòng)軸由于缺陷帶來的危險(xiǎn),得出了傳動(dòng)軸斷裂的原因。
[Abstract]:The rolling mill is an important equipment for the plastic deformation of the workpiece on the rolling line. The function of the drive shaft of the mill is to transfer the rotation and torque of the motor to the roll of the working frame.So the main transmission of rolling mill plays a vital role in the normal operation of the mill.With the rapid increase of the demand for the number of rolling products and the continuous improvement of the quality of the products, the bearing capacity of the main transmission device of the rolling mill is also undergoing a severe test.Not long ago, the driving shaft of a rough rolling mill in a certain steel plant had a fracture accident at the bearing installation. This paper takes the main transmission device of the roughing mill in the steel mill as an analysis object, and through the investigation and investigation on the site of the fracture of the drive shaft of the mill.The research on the drive shaft is carried out from many aspects. The specific research contents are as follows: 1) first of all, according to the fracture accident of the main drive shaft of the mill, the operation process, the design of the equipment, the maintenance of the equipment and the macroscopic fracture surface of the mill are analyzed.To find out the fracture reason of drive shaft of R2 mill.) secondly, to simplify the components of the main transmission device of a steel mill properly, according to the dimension parameters of the main transmission device of the mill,The balance force provided by the support balancing device in the main transmission device of rolling mill has a great influence on the stress distribution of the transmission shaft. Through the mechanical analysis of the device, the balance equation of each component is established.Thus, the function relation between the balance force of the drive shaft and the driving force of the hydraulic cylinder is deduced. According to the function relation between the balance force of the drive shaft and the driving force of the hydraulic cylinder, the program language of balance force is written in MATLAB.The maximum value of the balancing force on the drive shaft and the angle of the working condition are calculated. (5) the three-dimensional model of the main drive device of the mill is introduced into ADAMS for dynamic simulation, and the maximum value of the balancing force on the drive shaft and the angle of the working condition are extracted.According to the conclusion of the analysis, the driving shaft of the rolling mill is calculated at the dangerous angle.The danger caused by the defect of the drive shaft is studied, and the reason of the fracture of the drive shaft is obtained.
【學(xué)位授予單位】：安徽工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TG333

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