本文選題：回轉(zhuǎn)控制閥 + 獨(dú)立閥芯��； 參考：《浙江大學(xué)》2017年碩士論文

【摘要】：回轉(zhuǎn)閥是工程機(jī)械回轉(zhuǎn)系統(tǒng)的重要組成元件,用來控制上車部分相對(duì)下車部分的旋轉(zhuǎn)運(yùn)動(dòng),配合起升變幅等動(dòng)作,將重物從回轉(zhuǎn)半徑內(nèi)的一處送達(dá)指定的另一處。傳統(tǒng)的回轉(zhuǎn)閥采用三位六通換向閥,它在快速加減速時(shí),起動(dòng)、制動(dòng)緩慢,并會(huì)產(chǎn)生較大的振動(dòng)和沖擊,雖然現(xiàn)在大多數(shù)系統(tǒng)都增加了緩沖閥,但緩沖過強(qiáng)會(huì)降低推重能力,并且引發(fā)滯后,緩沖效果不佳,在大慣量工況下情況更是嚴(yán)重。這會(huì)加快其他零件的破壞,降低使用壽命,甚至引發(fā)安全事故。獨(dú)立閥芯控制技術(shù)采用兩個(gè)閥芯分別控制執(zhí)行元件的進(jìn)出油口,能夠獨(dú)立控制系統(tǒng)的流量和壓力。相對(duì)于傳統(tǒng)的換向閥系統(tǒng)來說,獨(dú)立閥芯技術(shù)使液壓系統(tǒng)多一個(gè)可控量,能達(dá)到更好的控制效果,故有必要將獨(dú)立閥芯技術(shù)應(yīng)用于大慣量工況的回轉(zhuǎn)控制系統(tǒng)中,深入研究其控制策略,使其性能優(yōu)勢(shì)得到充分發(fā)揮。本論文以某型號(hào)獨(dú)立閥芯回轉(zhuǎn)閥為控制對(duì)象,詳細(xì)分析該閥的工作原理,明確控制對(duì)象和反饋量。分析起重機(jī)回轉(zhuǎn)系統(tǒng)的主要負(fù)載工況,對(duì)各工況進(jìn)行分類,針對(duì)不同工況,利用PID控制,設(shè)置不同的控制參數(shù),制定出相應(yīng)的流量控制策略和壓力控制策略,通過搭建AMESim/Simulink聯(lián)合仿真模型不斷優(yōu)化改進(jìn)控制參數(shù),使各個(gè)工況均能達(dá)到較優(yōu)的性能。對(duì)BODAS控制器進(jìn)行數(shù)據(jù)讀取、負(fù)載識(shí)別、流量控制、壓力控制編程,完成MSC回轉(zhuǎn)閥的穩(wěn)態(tài)特性、動(dòng)態(tài)特性以及抗負(fù)載波動(dòng)特性的臺(tái)架實(shí)驗(yàn)測(cè)試。與傳統(tǒng)回轉(zhuǎn)閥相比,獨(dú)立閥芯回轉(zhuǎn)閥流量線性度、跟隨性好,控制死區(qū)大大減小,起動(dòng)、制動(dòng)平穩(wěn),滯后小,壓力沖擊降低。本課題的研究為工程機(jī)械回轉(zhuǎn)閥的控制方法和未來發(fā)展趨勢(shì)提供了理論支持和方向,具有一定的工程實(shí)用價(jià)值。本論文所研究的內(nèi)容一共分為六章,現(xiàn)簡(jiǎn)要介紹如下:第一章,首先介紹了回轉(zhuǎn)閥的概念和它的發(fā)展現(xiàn)狀,然后介紹獨(dú)立閥芯技術(shù)的原理、控制策略和目前的發(fā)展情況,最后提出了本課題研究的意義、目標(biāo)、主要內(nèi)容以及研究路線和難點(diǎn)。第二章,主要介紹了本課題研究對(duì)象—MSC獨(dú)立閥芯回轉(zhuǎn)閥的工作原理,進(jìn)行了無控制策略下的臺(tái)架實(shí)驗(yàn),建立AMESim仿真模型,設(shè)置仿真參數(shù),將仿真曲線和臺(tái)架實(shí)驗(yàn)曲線相比較,由此說明仿真模型搭建正確。第三章,對(duì)汽車起重機(jī)回轉(zhuǎn)控制系統(tǒng)的主要負(fù)載工況進(jìn)行分析并分類,介紹負(fù)載識(shí)別的概念及方法。根據(jù)負(fù)載工況的不同,對(duì)獨(dú)立閥芯回轉(zhuǎn)閥的控制策略進(jìn)行研究,并搭建AMESim和Simulink的聯(lián)合仿真模型,對(duì)控制策略進(jìn)行仿真研究,驗(yàn)證其可行性。第四章,介紹了用于控制MSC閥的博世力士樂的BODAS RC6-9控制器的基本原理和針腳分配,然后根據(jù)設(shè)計(jì)的控制策略對(duì)控制器進(jìn)行編程。第五章,對(duì)控制策略下的MSC獨(dú)立閥芯回轉(zhuǎn)閥進(jìn)行臺(tái)架試驗(yàn),介紹了試驗(yàn)臺(tái)的組成和原理,測(cè)試分析了四種工況下MSC閥的穩(wěn)態(tài)、動(dòng)態(tài)及抗負(fù)載波動(dòng)特性,并與傳統(tǒng)回轉(zhuǎn)閥進(jìn)行對(duì)比,驗(yàn)證了MSC獨(dú)立閥芯回轉(zhuǎn)閥的性能優(yōu)勢(shì)。第六章,對(duì)本課題的主要工作和研究成果作了總結(jié),同時(shí)也對(duì)未來更深入的研究改進(jìn)方向提出建議和展望。
[Abstract]:The rotary valve is an important component of the rotary system of the engineering machinery. It is used to control the rotation movement of the car part relative to the car, and cooperate with the lifting and changing movements to send the weight of the weight from one part of the revolving radius to the other place. The traditional rotary valve adopts three position six way reversing valve, which starts at fast acceleration and slows down, and the brake is slow, and Large vibration and shock can be produced, although most systems now increase the buffer valve, but too strong the buffer will reduce the load capacity, and trigger the lag, the buffer effect is not good, the condition is more serious in the large inertia condition. This will accelerate the destruction of other parts, reduce the life, and even cause safety accidents. Independent spool control technology. Two valve cores are used to control the inlet and outlet of the actuator respectively, which can control the flow and pressure of the system independently. Relative to the traditional reversing valve system, the independent spool technology makes the hydraulic system more controllable and can achieve better control effect. Therefore, it is necessary to apply the single valve core technology to the rotary control of the large inertia condition. In this paper, the control strategy is thoroughly studied, and its performance advantage is fully played. In this paper, a certain type of independent valve core rotary valve is used as the control object, the working principle of the valve is analyzed in detail, the control object and the feedback amount are clearly defined. The main load conditions of the crane rotary system are analyzed, the various working conditions are classified, and PI is used for different working conditions. D control, set different control parameters, formulate corresponding flow control strategy and pressure control strategy, through the construction of AMESim/Simulink joint simulation model to optimize and improve the control parameters, so that all conditions can achieve better performance. To BODAS controller data reading, load identification, flow control, pressure control programming, finish. The steady state characteristics, dynamic characteristics and anti load fluctuation characteristics of the MSC rotary valve are tested. Compared with the traditional rotary valve, the independent valve core rotary valve has good flow linearity, good following, the control dead zone is greatly reduced, the starting, braking, low lag and lower pressure impact are lower. The Research of this subject is the control method of the rotary valve of engineering machinery. And the future development trend provides theoretical support and direction, and has a certain practical value. The contents of this paper are divided into six chapters, which are briefly introduced as follows: first, the concept and development status of rotary valve are introduced, and then the principle of independent spool technology, control strategy and current development are introduced. Then it puts forward the significance of the research, the goal, the main content and the research route and difficulties. The second chapter mainly introduces the working principle of the research object of this subject - MSC independent valve spool rotary valve, carries out the platform experiment under the non control strategy, establishes the AMESim simulation model, sets the simulation parameters, and the simulation curve and the bench experiment Qu Xianxiang The simulation model is set up correctly. In the third chapter, the main load conditions of the truck crane rotary control system are analyzed and classified. The concept and method of load identification are introduced. According to the different load conditions, the control strategy of the independent spool rotary valve is studied, and a joint simulation model of AMESim and Simulink is built. The control strategy is simulated to verify its feasibility. In the fourth chapter, the basic principle and pin distribution of the BODAS RC6-9 controller for BOSCH Rexroth, which is used to control the MSC valve, are introduced. Then the controller is programmed according to the designed control strategy. In fifth chapter, the bench test of the independent valve core rotary valve under the control strategy is carried out. The composition and principle of the test rig are introduced. The steady-state, dynamic and anti load fluctuation characteristics of the MSC valve under four operating conditions are tested and analyzed, and compared with the traditional rotary valve, the performance advantages of the MSC independent valve core rotary valve are verified. The main work and research results of this subject are summarized, and the further research on the future is also made. In the direction of recommendations and outlook.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TH137.52;TP273

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 吳土祥;;負(fù)載口獨(dú)立閥控制研究[J];流體傳動(dòng)與控制;2014年05期

2 易迪升;彭勇;易曦;趙敏;;起重機(jī)回轉(zhuǎn)控制閥啟制動(dòng)性能研究[J];建筑機(jī)械;2012年19期

3 劉洪波;雷雨龍;傅堯;張建國(guó);李幼德;;基于轉(zhuǎn)矩的車輛負(fù)載識(shí)別方法[J];吉林大學(xué)學(xué)報(bào)(工學(xué)版);2012年05期

4 陳晉市;劉昕暉;元萬榮;王同建;趙鋒;;典型液壓節(jié)流閥口的動(dòng)態(tài)特性[J];西南交通大學(xué)學(xué)報(bào);2012年02期

5 徐兵;曾定榮;葛耀崢;劉英杰;;負(fù)載口獨(dú)立控制負(fù)載敏感系統(tǒng)模式切換特性[J];浙江大學(xué)學(xué)報(bào)(工學(xué)版);2011年05期

6 賈文華;殷晨波;;一種壓力補(bǔ)償閥的建模及穩(wěn)定性分析[J];上海交通大學(xué)學(xué)報(bào);2011年04期

7 李鳳芹;;淺談液壓系統(tǒng)背壓[J];液壓氣動(dòng)與密封;2011年04期

8 廖常初;;PID參數(shù)的意義與整定方法[J];自動(dòng)化應(yīng)用;2010年05期

9 劉英杰;徐兵;楊華勇;曾定榮;;電液比例負(fù)載口獨(dú)立控制系統(tǒng)壓力流量控制策略[J];農(nóng)業(yè)機(jī)械學(xué)報(bào);2010年05期

10 周會(huì);鄧斌;劉桓龍;;液壓組合閥口過流面積計(jì)算及特性分析[J];機(jī)械研究與應(yīng)用;2009年01期

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