本文選題：液壓圓錐破碎機(jī) + 滯回非線性模型　； 參考：《華北理工大學(xué)》2015年碩士論文

【摘要】：液壓圓錐破碎機(jī)是礦山、筑路等工業(yè)廣泛應(yīng)用的機(jī)械設(shè)備,具有高效率、高破碎比、高生產(chǎn)率、破碎顆粒度均勻等特點(diǎn),應(yīng)用十分廣泛。詳細(xì)了解國(guó)內(nèi)外液壓圓錐破碎機(jī)的發(fā)展情況,為破碎機(jī)研究做準(zhǔn)備。初步掌握國(guó)外液壓圓錐破碎機(jī)具有自動(dòng)過載保護(hù)、破碎產(chǎn)品粒度均勻、生產(chǎn)率高等功能,使工作性能大大提高,改善產(chǎn)品質(zhì)量,而國(guó)內(nèi)一直處于仿制階段,技術(shù)水平有限,其設(shè)計(jì)比較保守、機(jī)器笨重,與國(guó)外相比效率較低、破碎產(chǎn)品差距較大。對(duì)液壓圓錐破碎機(jī)運(yùn)動(dòng)學(xué)進(jìn)行了分析,并對(duì)其動(dòng)錐擺動(dòng)次數(shù)、生產(chǎn)率及電動(dòng)機(jī)功率進(jìn)行相關(guān)推導(dǎo)得到公式,對(duì)動(dòng)錐穩(wěn)定性進(jìn)行分析設(shè)計(jì)。對(duì)滯后非線性模型進(jìn)行研究,建立了柱坐標(biāo)系下的滯回力模型,對(duì)液壓圓錐破碎機(jī)動(dòng)力學(xué)進(jìn)行分析,建立了基于柱坐標(biāo)系的液壓圓錐破碎機(jī)動(dòng)力學(xué)模型,運(yùn)用MATLAB軟件進(jìn)行計(jì)算,得到動(dòng)錐幅頻響應(yīng)曲線。分析結(jié)果表明:動(dòng)錐的運(yùn)動(dòng)形式為非線性振動(dòng),其與定錐之間考慮到阻尼等因素存在一定的相位差,并不保持同步的運(yùn)動(dòng);動(dòng)錐運(yùn)動(dòng)的位移以及速度相對(duì)定錐來講都比較大,是振動(dòng)破碎過程中的主要因素,起主導(dǎo)作用,液壓圓錐破碎機(jī)正是主要依靠動(dòng)錐的高頻沖擊振動(dòng)來進(jìn)行物料的破碎作業(yè)。應(yīng)用ANSYS Workbench對(duì)液壓圓錐破碎機(jī)的主要零件進(jìn)行靜力分析,并獲得其工作狀態(tài)下的應(yīng)力應(yīng)變圖。分析結(jié)果表明:動(dòng)錐最大等效應(yīng)力發(fā)生在動(dòng)錐與主軸接觸的內(nèi)壁上邊緣處和動(dòng)錐破碎區(qū)域下邊緣;定錐的最大等效應(yīng)力發(fā)生在其破碎區(qū)最大載荷點(diǎn)處,并且各零件的強(qiáng)度以及剛度均滿足設(shè)計(jì)要求。
[Abstract]:Hydraulic cone crusher is widely used in mining, road construction and other industries. It has the characteristics of high efficiency, high crushing ratio, high productivity, uniform particle size and so on.Understand the development of hydraulic cone crusher at home and abroad and prepare for the research of crusher.Master the foreign hydraulic cone crusher with the functions of automatic overload protection, uniform particle size and high productivity, so that the working performance is greatly improved and the product quality is improved. However, the domestic hydraulic cone crusher has been in the stage of imitation, and the technical level is limited.The design is conservative, the machine is heavy, the efficiency is low compared with foreign countries, and the gap of broken products is big.The kinematics of hydraulic cone crusher is analyzed, and the formula of its swing times, productivity and motor power is derived, and the stability of moving cone is analyzed and designed.The hysteretic force model in cylindrical coordinate system is established, the dynamics of hydraulic cone crusher is analyzed, the dynamic model of hydraulic cone crusher based on cylindrical coordinate system is established, and the calculation is carried out by using MATLAB software.The amplitude-frequency response curve of moving cone is obtained.The results show that the motion form of the moving cone is nonlinear vibration, and there is a certain phase difference between the moving cone and the fixed cone considering the damping and other factors, and the motion of the moving cone is not synchronized, the displacement and velocity of the moving cone are relatively large compared to the constant cone.Hydraulic cone crusher is the main factor in the process of vibration crushing. The hydraulic cone crusher mainly relies on the high frequency shock vibration of the moving cone to carry on the crushing operation of the material.The static analysis of the main parts of the hydraulic cone crusher is carried out by ANSYS Workbench, and the stress-strain diagram of the hydraulic cone crusher is obtained.The results show that the maximum equivalent stress of the moving cone occurs at the upper edge of the inner wall of the contact between the moving cone and the spindle and the lower edge of the broken area of the moving cone, and the maximum equivalent stress of the fixed cone occurs at the point of the maximum load in the fracture zone.And the strength and stiffness of each part meet the design requirements.
【學(xué)位授予單位】：華北理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD451

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本文編號(hào)：1765955