【摘要】：隨著機(jī)電控制技術(shù)的發(fā)展和計(jì)算機(jī)應(yīng)用的不斷普及，數(shù)字流體元件作為一種機(jī)電一體化產(chǎn)品，有著越來越廣泛的應(yīng)用前景，它的突出優(yōu)點(diǎn)在于能夠克服傳統(tǒng)模擬控制元件所固有的缺點(diǎn)，如重復(fù)誤差及滯環(huán)誤差大、抗干擾能力差等，并能在自動(dòng)化、節(jié)能、編程控制、靈活性方面表現(xiàn)出其適應(yīng)性及生命力，對(duì)新型數(shù)字變量軸向柱塞泵的研究就是在此條件下產(chǎn)生的。從未來發(fā)展的趨勢(shì)看，數(shù)字系統(tǒng)將會(huì)成為液壓控制系統(tǒng)的主流。 目前，數(shù)字式軸向柱塞變量泵還存在著許多問題。因此，，本課題在前人的基礎(chǔ)上，對(duì)其進(jìn)行改進(jìn)，提出利用單片機(jī)AT89S52控制步進(jìn)電機(jī)驅(qū)動(dòng)的數(shù)字式軸向柱塞變量泵。它以市場(chǎng)化為前提，以成本低廉的單片機(jī)為控制核心，大大降低了研究成本，便于以后中小企業(yè)的生產(chǎn)和推廣。 本文綜述了國(guó)內(nèi)外有關(guān)數(shù)字元件的研究和發(fā)展?fàn)顩r；介紹了斜盤式軸向柱塞泵單片機(jī)控制的工作原理；采用單片機(jī)直接驅(qū)動(dòng)步進(jìn)電機(jī)的方法；建立了斜盤式軸向柱塞泵的單片機(jī)控制系統(tǒng)的數(shù)學(xué)模型，并對(duì)其進(jìn)行特性分析。在MATLAB下進(jìn)行了動(dòng)態(tài)仿真，取得了滿意的結(jié)果，從理論上證實(shí)了斜盤式軸向柱塞泵的單片機(jī)控制系統(tǒng)工作原理是可行的。 本課題的主要內(nèi)容包括：設(shè)計(jì)了以AT89S52單片機(jī)為核心的硬件電路，主要包括步進(jìn)電機(jī)的驅(qū)動(dòng)電路、A/D轉(zhuǎn)換電路、鍵盤顯示電路、看門狗電路等；本課題所設(shè)計(jì)的變量調(diào)節(jié)機(jī)構(gòu)采用結(jié)構(gòu)簡(jiǎn)單、應(yīng)用方便的雙邊滑閥作為執(zhí)行機(jī)構(gòu)，大大簡(jiǎn)化了變量機(jī)構(gòu)的結(jié)構(gòu)，提高了數(shù)字泵的性能，從而使得在一個(gè)普通模擬的軸向柱塞泵上，加裝上變量機(jī)構(gòu)和單片機(jī)系統(tǒng)，就能得到一個(gè)精確控制的數(shù)字式軸向柱塞泵變量泵。 因此，本課題所設(shè)計(jì)的變量調(diào)節(jié)機(jī)構(gòu)具有結(jié)構(gòu)簡(jiǎn)單、控制精度高、成本低廉等特點(diǎn)，可以滿足市場(chǎng)化的需求。
[Abstract]:With the development of electromechanical control technology and the popularization of computer application, digital fluid components, as a kind of mechatronics product, have more and more extensive application prospects. Its outstanding advantage lies in its ability to overcome the inherent shortcomings of traditional analog control elements, such as large repetition error and hysteresis error, poor anti-interference ability, etc., and can be used in automation, energy saving, programming control, etc. Flexibility shows its adaptability and vitality. The research of new digital variable axial piston pump is produced under this condition. From the trend of future development, digital system will become the mainstream of hydraulic control system. At present, there are still many problems in digital axial piston variable pump. Therefore, on the basis of the previous research, this paper proposes a digital axial plunger variable pump driven by stepping motor by using AT89S52 of single chip computer. It takes the market as the premise and the low cost single chip microcomputer as the control core, which greatly reduces the research cost and facilitates the production and promotion of small and medium-sized enterprises in the future. This paper summarizes the research and development of digital components at home and abroad, introduces the working principle of single-chip microcomputer control of oblique disc axial piston pump, and introduces the method of using single-chip microcomputer to drive stepping motor directly. The mathematical model of single-chip microcomputer control system of inclined disc axial piston pump is established and its characteristic is analyzed. The dynamic simulation is carried out under MATLAB, and the satisfactory results are obtained. The working principle of the single-chip microcomputer control system of the inclined disc axial piston pump is proved to be feasible theoretically. The main contents of this thesis are as follows: the hardware circuit based on AT89S52 single chip microcomputer is designed, which includes the driving circuit of step motor, the conversion circuit of Ar / D, the circuit of keyboard display, the circuit of watchdog and so on. The variable adjusting mechanism designed in this paper adopts simple structure and convenient two-sided slide valve as actuating mechanism, which greatly simplifies the structure of variable mechanism and improves the performance of digital pump. Thus, a precisely controlled digital axial piston pump can be obtained by adding a variable mechanism and a single chip microcomputer system to a common analog axial piston pump. Therefore, the variable regulation mechanism designed in this paper has the characteristics of simple structure, high control precision and low cost, which can meet the needs of market economy.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH322

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 郭初生,王向周,王渝;變轉(zhuǎn)速軸向柱塞泵恒流量控制的建模與仿真[J];北京理工大學(xué)學(xué)報(bào);2004年11期

2 楊威,那焱青,尹文波,那成烈;數(shù)字式軸向柱塞泵[J];甘肅工業(yè)大學(xué)學(xué)報(bào);2003年01期

3 陳惠民;黃新華;劉天民;林保華;;直接式數(shù)字閥的開發(fā)研究[J];機(jī)床與液壓;1987年02期

4 唐中一;譚躍綱;;流體傳動(dòng)與機(jī)電一體化技術(shù)[J];機(jī)床與液壓;1987年05期

5 唐中一;王麗萍;石崇輝;;流體動(dòng)力節(jié)能與數(shù)字控制技術(shù)[J];機(jī)床與液壓;1990年02期

6 王少丹;駱涵秀;;脈寬調(diào)制式數(shù)字閥系統(tǒng)的研究[J];機(jī)床與液壓;1991年05期

7 李世倫，陳愛民，駱涵秀，張才佑;高速數(shù)控步進(jìn)液壓缸系統(tǒng)的研究[J];機(jī)床與液壓;1995年06期

8 沈健,王慶國(guó);微機(jī)控制數(shù)字變量軸向柱塞泵的研究[J];機(jī)電一體化;2000年02期

9 劉忠;;液壓脈沖寬度調(diào)制技術(shù)的應(yīng)用研究[J];機(jī)械與電子;2006年04期

10 雷秀,張治務(wù),李軍;數(shù)控軸向柱塞變量泵開發(fā)及靜特性實(shí)驗(yàn)研究[J];內(nèi)蒙古工業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2000年02期

相關(guān)會(huì)議論文 前1條

1 孫宗穎;;電液傳動(dòng)及控制技術(shù)競(jìng)爭(zhēng)現(xiàn)狀和今后發(fā)展[A];液壓氣動(dòng)密封行業(yè)信息�？瘏R編第二卷[C];2003年

相關(guān)碩士學(xué)位論文 前1條

1 王慶瑋;單片機(jī)控制數(shù)字變量柱塞泵的研究[D];沈陽(yáng)工業(yè)大學(xué);2005年

本文編號(hào)：2382326