發(fā)布時間：2018-10-22 07:39

【摘要】：準確稱重和可靠運行是煤礦立井箕斗裝載系統(tǒng)升級改造中的關(guān)鍵問題,本文以銅川市王石凹煤礦的液壓定重稱載系統(tǒng)為研究對象,采用AMESim液壓仿真技術(shù),對定重稱載過程進行了仿真,分析了影響稱重系統(tǒng)性能指標的因素。主要研究內(nèi)容有:(1)依據(jù)定重稱載液壓系統(tǒng)的工作原理和系統(tǒng)組成,分析得到了稱載過程中液壓元件之間的邏輯控制關(guān)系,建立了 AMESim液壓仿真模型。(2)對定重稱載過程進行仿真,結(jié)果表明液壓缸舉升速度平穩(wěn),裝載過程中液壓缸活塞較下降位移小,定重稱載的稱重誤差小于0.09%,系統(tǒng)的準確性和剛度符合要求。稱載過程中產(chǎn)生的壓力沖擊小于系統(tǒng)工作壓力的1.5倍,系統(tǒng)能夠安全工作。(3)建立了衡量稱重系統(tǒng)動態(tài)性能、測量誤差和剛度的指標,分析得到了液壓系統(tǒng)管道長度和內(nèi)徑、裝載過程對系統(tǒng)性能指標的影響。建立了系統(tǒng)性能指標與管道長度和內(nèi)徑之間的對應(yīng)關(guān)系,為根據(jù)系統(tǒng)性能指標選擇合適的管道提供了依據(jù)。本文建立的定重稱載仿真模型,能夠?qū)崿F(xiàn)對該液壓系統(tǒng)的仿真與性能分析,得到的研究結(jié)論為系統(tǒng)的改進提供了參考依據(jù)。
[Abstract]:Accurate weighing and reliable operation are the key problems in upgrading and reforming the skip loading system of coal mine vertical shaft. In this paper, the hydraulic weighing and weighing system of Wang Shi au Coal Mine in Tongchuan City is taken as the research object, and the AMESim hydraulic simulation technology is adopted. The process of constant weight weighing is simulated, and the factors influencing the performance of weighing system are analyzed. The main research contents are as follows: (1) according to the working principle and system composition of the constant weight weighing hydraulic system, the logical control relationship between the hydraulic components in the weighing process is analyzed, and the AMESim hydraulic simulation model is established. (2) the constant weight weighing process is simulated. The results show that the lifting speed of the hydraulic cylinder is stable, the piston of the cylinder is smaller than the falling displacement during the loading process, the weighing error of the fixed load is less than 0.09, and the accuracy and stiffness of the system meet the requirements. The pressure shock produced in the weighing process is less than 1.5 times of the working pressure of the system, and the system can work safely. (3) the dynamic performance, measurement error and stiffness of the weighing system are measured, and the length and inner diameter of the hydraulic system pipeline are analyzed. The effect of loading process on system performance. The corresponding relationship between the system performance index and pipe length and inner diameter is established, which provides the basis for selecting the appropriate pipeline according to the system performance index. The simulation model established in this paper can realize the simulation and performance analysis of the hydraulic system. The research results provide a reference for the improvement of the system.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD531.1

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本文編號：2286528