本文選題：齒輪流量計 + 優(yōu)化設(shè)計�。� 參考：《安徽理工大學(xué)》2016年碩士論文

【摘要】：隨著我國經(jīng)濟的蓬勃發(fā)展以及對自動化工業(yè)生產(chǎn)水平需求的不斷提高,對流量信號的測量要求也越來越高,容積式流量計是在眾多儀表中發(fā)展并應(yīng)用起步比較早的一種。但由于齒輪嚙合時會產(chǎn)生振動以及流體的流動復(fù)雜性,使得容積式流量計一般情況下只能適用于液壓系統(tǒng)中壓力不大的回油側(cè)�？梢�,液壓系統(tǒng)中的動態(tài)流量測量是液壓測試中的難題,特別是高壓側(cè)的動態(tài)流量測量。論文在研究傳統(tǒng)齒輪流量計的結(jié)構(gòu)基礎(chǔ)上,研究設(shè)計并加工了新型行星齒輪流量計。介紹分析了該流量計的結(jié)構(gòu)創(chuàng)新點、測試組件結(jié)構(gòu)以及測試原理。計算了流量計的幾何排量和流量,利用MATLAB軟件對流量計齒輪參數(shù)優(yōu)化設(shè)計得到最佳參數(shù),對得到的參數(shù)進行強度校核。在workbench中對流量計靜態(tài)液壓力情況進行仿真分析,研究了流量計材料的適用情況并得出尼龍材料替代合金鋼材料的可行性。利用AMESim仿真,搭建了伺服閥模擬動態(tài)流量信號測試系統(tǒng),對伺服閥給出特定信號仿真分析。研究了動態(tài)液壓缸在液壓系統(tǒng)中的響應(yīng)情況以及旁路法測流量時,支油路與動態(tài)液壓缸的流量信號關(guān)系及響應(yīng)情況。旁路法測流量時,溢流閥是壓力控制上的重要元件,所以論文在FLUENT仿真軟件中,設(shè)計了溢流閥仿真模型,利用GAMBIT對模型劃分網(wǎng)格。分析了滑閥式溢流閥和錐芯式溢流閥在旁路法測流量時,相同負載及相同進口速度下,對液壓系統(tǒng)動態(tài)流量特性的影響情況。最后,提出了一種以動態(tài)液壓缸的位移信號求出流量信號方法,并加工了伺服閥模擬動態(tài)流量信號實驗臺,介紹了試驗臺的工作原理、主要元件以及操作流程。在該實驗臺上進行實驗,通過給出不同條件,采集動態(tài)液壓缸的位移信號,處理信號求出速度信號,研究了液壓缸對液壓系統(tǒng)動態(tài)流量信號的響應(yīng)情況,與系統(tǒng)的實際信號大致相同。
[Abstract]:With the rapid development of our economy and the increasing demand for the production level of automation industry, the measurement requirements for flow signals are becoming more and more high. The volumetric Flowmeter is one of the early ones developed and applied in many instruments. However, due to the vibration of gear meshing and the complexity of fluid flow, the volumetric Flowmeter can only be applied to the return side of hydraulic system with little pressure. It can be seen that dynamic flow measurement in hydraulic system is a difficult problem in hydraulic testing, especially in high pressure side. On the basis of studying the structure of traditional gear Flowmeter, a new type of planetary gear Flowmeter is designed and manufactured. The structure innovation, test component structure and test principle of the Flowmeter are introduced and analyzed. The geometric displacement and flow rate of the Flowmeter are calculated. The optimum parameters are obtained by using MATLAB software to optimize the parameters of the Flowmeter gear, and the strength of the obtained parameters is checked. The static hydraulic force of Flowmeter is simulated and analyzed in workbench. The application of Flowmeter material is studied and the feasibility of replacing alloy steel material with nylon material is obtained. Using AMESim simulation, a servo valve simulation dynamic flow signal testing system is set up, and the specific signal simulation analysis is given to the servo valve. The response of the dynamic hydraulic cylinder in the hydraulic system and the relationship and response of the flow signal between the supporting oil path and the dynamic hydraulic cylinder when the flow rate is measured by bypass method are studied. The relief valve is an important component in pressure control when measuring the flow rate by bypass method, so the simulation model of relief valve is designed in fluent simulation software, and the model is meshed by gambit. The influence of sliding valve relief valve and cone core relief valve on the dynamic flow characteristics of hydraulic system under the same load and same inlet velocity is analyzed. Finally, a method of calculating the flow signal from the displacement signal of the dynamic hydraulic cylinder is put forward, and the servo valve simulation dynamic flow signal experimental platform is machined. The working principle, main components and operation flow of the test-bed are introduced. On the experimental bench, the displacement signal of the dynamic hydraulic cylinder is collected, the velocity signal is obtained by processing the signal, and the response of the hydraulic cylinder to the dynamic flow signal of the hydraulic system is studied. The signal is roughly the same as the actual signal of the system.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TH814.8

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本文編號：2004234