本文關(guān)鍵詞： 凸輪機(jī)構(gòu) 高壓柱塞水泵 傳動(dòng)函數(shù) 虛擬樣機(jī)技術(shù) ADAMS 有限元分析　出處：《濟(jì)南大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：針對(duì)洗井用高壓柱塞水泵的方案設(shè)計(jì)與參數(shù)確定、剛?cè)狁詈蟿?dòng)力學(xué)模型的建立和虛擬樣機(jī)仿真進(jìn)行了較為系統(tǒng)的研究，為設(shè)計(jì)高性能的高壓柱塞水泵提供了技術(shù)支持。 根據(jù)洗井用高壓水泵的工作條件，分析研究了其面臨的腐蝕、內(nèi)泄漏、磨損等技術(shù)問題，確定了軸向柱塞式的主體結(jié)構(gòu)型式，采用了凸輪驅(qū)動(dòng)八個(gè)單作用缸對(duì)置式布置的技術(shù)方案。 針對(duì)工程中常用的兩種凸輪傳動(dòng)的運(yùn)動(dòng)規(guī)律進(jìn)行了運(yùn)動(dòng)學(xué)仿真，得出了蓋特曼函數(shù)與變余弦函數(shù)對(duì)應(yīng)的柱塞運(yùn)動(dòng)位移、速度、加速度曲線。蓋特曼和變余弦兩種傳動(dòng)函數(shù)對(duì)應(yīng)的柱塞運(yùn)動(dòng)位移、速度的變化規(guī)律相似，但是，兩種傳動(dòng)函數(shù)對(duì)應(yīng)的柱塞運(yùn)動(dòng)加速度的變化規(guī)律存在本質(zhì)區(qū)別，變余弦函數(shù)對(duì)應(yīng)的最大加速度略小，但在運(yùn)動(dòng)開始與結(jié)束階段存在突變，而蓋特曼函數(shù)整個(gè)運(yùn)動(dòng)階段加速度連續(xù)無突變，運(yùn)動(dòng)平穩(wěn)，理論上沒有沖擊。蓋特曼傳動(dòng)函數(shù)適用于大流量重負(fù)載的洗井用高壓柱塞水泵。 導(dǎo)出了采用蓋特曼函數(shù)作為運(yùn)動(dòng)規(guī)律的槽凸輪輪廓曲線的坐標(biāo)方程，，并給出了槽凸輪輪廓曲線的設(shè)計(jì)過程。結(jié)合Pro/E、ANSYS與ADAMS建立了高壓柱塞水泵的剛?cè)狁詈蟿?dòng)力學(xué)模型，并進(jìn)行了動(dòng)力學(xué)仿真分析。 建立了洗井用高壓柱塞水泵的虛擬樣機(jī)模型，按照實(shí)際工作狀況設(shè)置仿真參數(shù)，驗(yàn)證了虛擬樣機(jī)模型的正確性。在ADAMS中對(duì)高壓柱塞水泵的影響因素進(jìn)行仿真分析，并總結(jié)了產(chǎn)生影響的規(guī)律。在ANSYS中對(duì)凸輪軸進(jìn)行有限元分析，得到高壓柱塞水泵柱塞受到最大壓力時(shí)凸輪軸的應(yīng)力與應(yīng)變分布云圖，驗(yàn)證了其滿足強(qiáng)度要求。通過分析高壓柱塞水泵柱塞的運(yùn)動(dòng)速度，總結(jié)出高壓柱塞水泵流量恒定的條件，驗(yàn)證了其輸出的流量恒定。解決了高壓柱塞水泵流量不穩(wěn)定、壓力波動(dòng)大的缺點(diǎn)，改善了高壓柱塞水泵的運(yùn)動(dòng)學(xué)與動(dòng)力學(xué)特性。
[Abstract]:The scheme design and parameter determination of high pressure plunger pump for well washing, the establishment of rigid-flexible coupling dynamic model and the simulation of virtual prototype are studied systematically, which provides technical support for the design of high performance high pressure plunger pump. According to the working conditions of high pressure water pump for well washing, the technical problems such as corrosion, internal leakage and wear are analyzed and studied, and the main structure type of axial plunger type is determined. The technical scheme of cam driving eight single acting cylinders is adopted. Based on the kinematics simulation of two kinds of cam drives, the displacement and velocity of plunger corresponding to the Gatman function and the variable cosine function are obtained. Acceleration curve. The displacement and velocity of plunger movement corresponding to the transmission function of Gettmann and variable cosine are similar, but there are essential differences between them. The maximum acceleration corresponding to the variable cosine function is a little small, but there is a sudden change in the beginning and the end of the motion, while the acceleration of the Gettmann function in the whole motion phase has no mutation continuously, and the motion is stable. There is no shock in theory. The Gatman transmission function is suitable for high pressure plunger pumps for large flow and heavy loads. The coordinate equation of groove-cam contour curve using Guytmann function as motion law is derived, and the design process of groove-cam contour curve is given. The rigid-flexible coupling dynamic model of high-pressure plunger pump is established by using Pro-Eansys and ADAMS. Dynamics simulation analysis is also carried out. The virtual prototype model of high pressure plunger pump for well washing is established. The simulation parameters are set up according to the actual working conditions, and the correctness of the virtual prototype model is verified. The influence factors of high pressure plunger pump are simulated and analyzed in ADAMS. The finite element analysis of camshaft is carried out in ANSYS, and the distribution of stress and strain of camshaft is obtained when the piston of high pressure plunger is subjected to the maximum pressure. By analyzing the moving speed of the plunger of the high pressure plunger pump, the condition of constant flow rate of the high pressure plunger pump is summarized, and the constant flow rate of its output is verified, and the unstable flow rate of the high pressure plunger pump is solved. The disadvantage of high pressure fluctuation improves the kinematics and dynamics of high pressure plunger pump.
【學(xué)位授予單位】：濟(jì)南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH322

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