本文選題：鋼管碼垛機(jī) + 仿真分析��； 參考：《天津理工大學(xué)》2017年碩士論文

【摘要】：隨著近幾年中國(guó)經(jīng)濟(jì)的快速發(fā)展,對(duì)管的需求量也與日俱增。傳統(tǒng)的人工碼垛方式已經(jīng)不能滿足市場(chǎng)對(duì)鋼管的需求,并且市場(chǎng)的通用鋼管碼垛機(jī)定位精度低、耗能大,為了解決這一突出性的問(wèn)題,本文針對(duì)鋼管碼垛機(jī)全自動(dòng)輸送機(jī)構(gòu)進(jìn)行設(shè)計(jì)研究。本文涉及的主要內(nèi)容如下:(1)基于ADAMS的鋼管碼垛機(jī)輸送機(jī)構(gòu)的仿真分析利用ADAMS軟件,在其中建立鋼管碼垛機(jī)輸送機(jī)構(gòu)的運(yùn)動(dòng)模型,對(duì)鋼管碼垛機(jī)輸送機(jī)構(gòu)進(jìn)行動(dòng)力學(xué)分析。通過(guò)動(dòng)力學(xué)分析,得到鋼管碼垛機(jī)自動(dòng)輸送機(jī)構(gòu)的液壓缸的推進(jìn)力、各個(gè)鉸接點(diǎn)受力、液壓缸的功率等在運(yùn)動(dòng)過(guò)程中隨時(shí)間的變化曲線。在ADMAS/PostProcessor后處理功能中可以清楚的得到各個(gè)力隨參數(shù)的變化曲線和最大值,為機(jī)構(gòu)的優(yōu)化設(shè)計(jì)、桿件的強(qiáng)度校核、選擇最佳電機(jī)提供了理論依據(jù)。(2)基于ADAMS的鋼管碼垛機(jī)自動(dòng)輸送機(jī)構(gòu)的優(yōu)化設(shè)計(jì)利用ADAMS軟件中的參數(shù)化建模和分析功能,通過(guò)建立參數(shù)化點(diǎn),建立鋼管碼垛機(jī)自動(dòng)輸送機(jī)構(gòu)的參數(shù)化模型。以液壓缸能耗最小為優(yōu)化目標(biāo),經(jīng)過(guò)研究找到合適的設(shè)計(jì)變量及其取值范圍,然后進(jìn)行優(yōu)化設(shè)計(jì),找到了Φ219鋼管碼垛機(jī)輸送機(jī)構(gòu)在安裝時(shí)最佳的起始位置。優(yōu)化設(shè)計(jì)之后,使得液壓缸的最大推進(jìn)力從23137.7N減少到12227.9N,降低了47.2%,平均推進(jìn)力從1865.1N減少到1364.76N,降低了26.8%,最大功率從4627.5W減少到2389.2W,平均功率從373.83W減少到316.95W。(3)基于ANSYS的有限元分析及可靠性分析根據(jù)ADAMS中的動(dòng)力學(xué)分析,得出關(guān)鍵零部件的載荷分布情況,為了驗(yàn)證零部件在工作時(shí)是否安全,利用ANSYS對(duì)其進(jìn)行有限元分析,測(cè)出其最大等效應(yīng)力。然后對(duì)零部件進(jìn)行可靠度分析,以概率的形式反映零部件在工作時(shí)的可靠程度。最后得出結(jié)論:所研究的零部件均滿足強(qiáng)度要求,并且可靠度均在99.99%以上。最后對(duì)鋼管碼垛機(jī)輸送機(jī)構(gòu)進(jìn)行模態(tài)分析,測(cè)得其固有頻率為44.041-169.67Hz之間,為避免發(fā)生共振,應(yīng)該避開(kāi)此頻率的范圍。
[Abstract]:With the rapid development of Chinese economy in recent years, the demand for management is increasing day by day. The traditional manual palletizing method can not meet the market demand for steel pipe, and the positioning accuracy of the general steel pipe palletizing machine in the market is low, and the energy consumption is large. In order to solve this outstanding problem, In this paper, the design of automatic conveying mechanism of steel pipe palletizing machine is studied. The main contents of this paper are as follows: (1) the simulation analysis of steel pipe palletizing conveyor mechanism based on ADAMS. The kinematic model of steel pipe palletizing conveyor mechanism is established by using ADAMS software, and the dynamics analysis of steel pipe palletizing conveyor mechanism is carried out. Through dynamic analysis, the propelling force of the hydraulic cylinder of the automatic conveying mechanism of the steel pipe palletizing machine, the force acting on each hinge point, the power of the hydraulic cylinder and so on are obtained in the course of movement. In the post-processing function of ADMAS/PostProcessor, the curves and maximum values of various forces with parameters can be clearly obtained, which can be used to optimize the design of the mechanism and check the strength of the members. The optimum design of automatic conveying mechanism of steel pipe palletizing machine based on ADAMS and the function of parameterized modeling and analysis in ADAMS software are used to establish parameterized points. The parameterized model of automatic conveying mechanism of steel pipe palletizing machine is established. Taking the minimum energy consumption of hydraulic cylinder as the optimization objective, the proper design variables and their range of values are found through the research, and the optimum starting position of the 桅 219 steel pipe palletizing conveyor is found after the optimization design. After optimizing the design, The maximum propulsion force of the hydraulic cylinder was reduced from 23137.7N to 12227.9N, the average propulsion force was reduced from 1865.1N to 1364.76N, the maximum power was reduced from 4627.5W to 2389.2W, and the average power was reduced from 373.83W to 316.95W.3N) based on ANSYS finite element analysis and reliability analysis. According to the kinetic analysis in ADAMS, The load distribution of the key parts is obtained. In order to verify whether the parts are safe or not, the finite element analysis is carried out by using ANSYS, and the maximum equivalent stress is measured. Then the reliability of the parts is analyzed and the reliability of the parts is reflected in the form of probability. Finally, it is concluded that all the parts studied meet the requirements of strength, and the reliability is above 99.99%. Finally, the modal analysis of steel pipe palletizing conveyor is carried out, and the natural frequency is found to be between 44.041-169.67Hz. In order to avoid resonance, the range of this frequency should be avoided.
【學(xué)位授予單位】：天津理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TH22

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