挖掘機液壓能回收及釋放電液系統(tǒng)的研究
發(fā)布時間：2018-08-05 20:17
【摘要】：目前,世界范圍內(nèi)的節(jié)能運動正在轟轟烈烈地開展著,作為能源消耗大戶的工程機械領域也就如何更節(jié)能、更環(huán)保而展開各項研究。液壓挖掘機作為應用最廣的工程機械之一,在諸多領域得到廣泛應用。如何提高液壓挖掘機的工作效率、降低能源消耗,已經(jīng)成為許多科研人員研究的課題。本文以某廠20T挖掘機為研究對象,提出一套能量吸收及釋放電液系統(tǒng),并通過仿真及實驗展開研究。具體內(nèi)容如下： 第一章,在查閱國內(nèi)外有關(guān)挖掘機能量回收及釋放研究文獻的基礎上,論述了國內(nèi)挖掘機生產(chǎn)和應用的概況,引出了挖掘機能量回收及釋放電液系統(tǒng)的研究意義,介紹了幾種混合動力系統(tǒng)的形式,并論述了國內(nèi)外混合動力挖掘機發(fā)展的現(xiàn)狀和趨勢。提出了本課題的研究內(nèi)容及論文的研究工作。 第二章,以某廠20T挖掘機為研究對象,分析該挖掘機典型工作循環(huán)的工作流程,確定能量回收的主要來源。建立測試系統(tǒng),對該挖掘機在典型工作循環(huán)中的動臂油缸兩腔及回轉(zhuǎn)馬達兩腔壓力進行實測分析,確定該挖掘機在典型工況時的壓力及工作時間。根據(jù)實測數(shù)據(jù)計算動臂油缸下降及回轉(zhuǎn)馬達制動時可回收油液體積,并根據(jù)原有挖掘機液壓系統(tǒng)提出能量回收及釋放電液系統(tǒng)的結(jié)構(gòu)并闡述工作原理。 第三章,對挖掘機能量回收及釋放系統(tǒng)的主要元件蓄能器及液壓馬達進行了簡單的介紹,并對蓄能器和液壓馬達進行參數(shù)匹配,并闡述了在實際樣機中蓄能器、液壓馬達以及閥塊的安裝方式。 第四章,對挖掘機動力下降能量回收系統(tǒng)、回轉(zhuǎn)制動能量回收系統(tǒng)以及能量釋放系統(tǒng)建立數(shù)學模型,并根據(jù)數(shù)學模型對三個系統(tǒng)進行分析。對整個挖掘機能量回收及釋放電液系統(tǒng)進行建模和仿真。首先介紹了應用的仿真軟件和仿真方式。應用ADAMS建立挖掘機整車機構(gòu)三維模型,并將模型導入應用AMESim所建的液壓系統(tǒng)模型中。應用兩款軟件的聯(lián)合仿真,對傳統(tǒng)挖掘機的動臂下降及回轉(zhuǎn)制動進行了仿真分析,并著重對加入動臂下降能量回收系統(tǒng)及回轉(zhuǎn)制動能量回收系統(tǒng)的挖掘機模型進行仿真,分析了不同參數(shù)對能量回收及釋放效果的影響,并對系統(tǒng)方案及元件的選型進行了優(yōu)化分析。 第五章,簡單地描述了挖掘機能量回收及釋放電液系統(tǒng)的控制策略,并對控制器進行選型。 第六章,提出針對能量回收及釋放電液系統(tǒng)的性能試驗方案,對比傳統(tǒng)挖掘機,計算安裝能量回收及釋放系統(tǒng)后的挖掘機的節(jié)能效果,并分析了試驗與仿真之間存在偏差的原因。 第七章,總結(jié)本文的主要工作,闡述研究結(jié)論,并對今后的研究工作做出了展望。
[Abstract]:At present, the worldwide energy conservation movement is being carried out vigorously, as a large consumer of energy consumption of construction machinery field on how to save energy, more environmental protection and launched various studies. As one of the most widely used construction machinery, hydraulic excavator is widely used in many fields. How to improve the working efficiency of hydraulic excavators and reduce energy consumption has become a research topic for many researchers. In this paper, the 20T excavator in a factory is taken as the research object, a set of energy absorption and release electro-hydraulic system is put forward, and the research is carried out through simulation and experiment. The specific contents are as follows: chapter 1, based on the reference to the domestic and foreign literatures on excavator energy recovery and release, the general situation of domestic excavator production and application is discussed. The research significance of energy recovery and electro-hydraulic release system of excavator is introduced. Several types of hybrid power system are introduced, and the present situation and trend of development of hybrid excavator at home and abroad are discussed. The research content of this subject and the research work of the thesis are put forward. In the second chapter, taking the 20T excavator in a factory as the research object, the working flow of the typical working cycle of the excavator is analyzed, and the main source of energy recovery is determined. A test system is established to measure and analyze the pressure of the excavator in the typical working cycle. The pressure and working time of the excavator under typical working conditions are determined by measuring and analyzing the pressure of the two cavities of the cylinder and the rotary motor in the typical working cycle. According to the measured data, the oil volume can be recovered when the cylinder drops and the rotary motor is braking. According to the original hydraulic system of the excavator, the structure of the energy recovery and release electro-hydraulic system is put forward and the working principle is expounded. In the third chapter, the main components of energy recovery and release system of excavator, accumulator and hydraulic motor are simply introduced, and the parameters of accumulator and hydraulic motor are matched, and the accumulator is described in the actual prototype. Installation of hydraulic motors and valve blocks. In the fourth chapter, the mathematical models of the energy recovery system, the energy recovery system of rotary braking and the energy release system of excavator are established, and the three systems are analyzed according to the mathematical model. The model and simulation of the whole excavator energy recovery and release system are carried out. First of all, the application of simulation software and simulation methods are introduced. The 3D model of excavator mechanism is established by using ADAMS, and the model is imported into the hydraulic system model built by AMESim. The joint simulation of two kinds of software is used to simulate and analyze the falling arm and rotary brake of the traditional excavator, and the model of the excavator with the drop energy recovery system and the energy recovery system of the rotary brake is simulated. The effects of different parameters on energy recovery and release are analyzed, and the system scheme and the selection of components are optimized. In the fifth chapter, the control strategy of the excavator energy recovery and release system is described, and the controller is selected. In the sixth chapter, the performance test scheme of energy recovery and release system is put forward. Compared with the traditional excavator, the energy saving effect of the excavator after installing the energy recovery and releasing system is calculated. The reason of the deviation between experiment and simulation is analyzed. Chapter seven summarizes the main work of this paper, expounds the research conclusions, and makes a prospect for the future research work.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU621
本文編號：2166901
[Abstract]:At present, the worldwide energy conservation movement is being carried out vigorously, as a large consumer of energy consumption of construction machinery field on how to save energy, more environmental protection and launched various studies. As one of the most widely used construction machinery, hydraulic excavator is widely used in many fields. How to improve the working efficiency of hydraulic excavators and reduce energy consumption has become a research topic for many researchers. In this paper, the 20T excavator in a factory is taken as the research object, a set of energy absorption and release electro-hydraulic system is put forward, and the research is carried out through simulation and experiment. The specific contents are as follows: chapter 1, based on the reference to the domestic and foreign literatures on excavator energy recovery and release, the general situation of domestic excavator production and application is discussed. The research significance of energy recovery and electro-hydraulic release system of excavator is introduced. Several types of hybrid power system are introduced, and the present situation and trend of development of hybrid excavator at home and abroad are discussed. The research content of this subject and the research work of the thesis are put forward. In the second chapter, taking the 20T excavator in a factory as the research object, the working flow of the typical working cycle of the excavator is analyzed, and the main source of energy recovery is determined. A test system is established to measure and analyze the pressure of the excavator in the typical working cycle. The pressure and working time of the excavator under typical working conditions are determined by measuring and analyzing the pressure of the two cavities of the cylinder and the rotary motor in the typical working cycle. According to the measured data, the oil volume can be recovered when the cylinder drops and the rotary motor is braking. According to the original hydraulic system of the excavator, the structure of the energy recovery and release electro-hydraulic system is put forward and the working principle is expounded. In the third chapter, the main components of energy recovery and release system of excavator, accumulator and hydraulic motor are simply introduced, and the parameters of accumulator and hydraulic motor are matched, and the accumulator is described in the actual prototype. Installation of hydraulic motors and valve blocks. In the fourth chapter, the mathematical models of the energy recovery system, the energy recovery system of rotary braking and the energy release system of excavator are established, and the three systems are analyzed according to the mathematical model. The model and simulation of the whole excavator energy recovery and release system are carried out. First of all, the application of simulation software and simulation methods are introduced. The 3D model of excavator mechanism is established by using ADAMS, and the model is imported into the hydraulic system model built by AMESim. The joint simulation of two kinds of software is used to simulate and analyze the falling arm and rotary brake of the traditional excavator, and the model of the excavator with the drop energy recovery system and the energy recovery system of the rotary brake is simulated. The effects of different parameters on energy recovery and release are analyzed, and the system scheme and the selection of components are optimized. In the fifth chapter, the control strategy of the excavator energy recovery and release system is described, and the controller is selected. In the sixth chapter, the performance test scheme of energy recovery and release system is put forward. Compared with the traditional excavator, the energy saving effect of the excavator after installing the energy recovery and releasing system is calculated. The reason of the deviation between experiment and simulation is analyzed. Chapter seven summarizes the main work of this paper, expounds the research conclusions, and makes a prospect for the future research work.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU621
【參考文獻】
相關(guān)期刊論文 前10條
1 裴磊;管成;邱清盈;;混合動力挖掘機動臂勢能回收系統(tǒng)研究[J];機床與液壓;2009年03期
2 張彥廷;王慶豐;肖清;;混合動力液壓挖掘機液壓馬達能量回收的仿真及試驗[J];機械工程學報;2007年08期
3 黃宗益,李興華,陳明;液壓挖掘機節(jié)能措施[J];建筑機械化;2004年08期
4 吳學松;;混合動力工程機械潮起[J];建筑機械化;2009年04期
5 趙波;劉杰;戴麗;鄧子龍;;挖掘機液壓系統(tǒng)的節(jié)能技術(shù)分析[J];流體傳動與控制;2007年04期
6 高峰,潘雙夏;液壓挖掘機負流量負荷傳感控制策略[J];農(nóng)業(yè)機械學報;2005年07期
7 宋世鵬;朱新云;趙磊;;液壓挖掘機功率損失分析及節(jié)能控制技術(shù)[J];中國設備工程;2008年11期
8 于安才;姜繼海;;液壓混合動力挖掘機回轉(zhuǎn)裝置控制方式的研究[J];西安交通大學學報;2011年07期
9 陳華志,苑士華;城市用車輛制動能量回收的液壓系統(tǒng)設計[J];液壓與氣動;2003年04期
10 姜繼海;于安才;沈偉;;基于CPR網(wǎng)絡的全液壓混合動力挖掘機[J];液壓與氣動;2010年09期
相關(guān)博士學位論文 前4條
1 徐琳;汽車液電饋能式減振器研究[D];武漢理工大學;2011年
2 林添良;混合動力液壓挖掘機勢能回收系統(tǒng)的基礎研究[D];浙江大學;2011年
3 張棟;基于功率匹配的挖掘機節(jié)能控制技術(shù)的研究[D];吉林大學;2005年
4 張彥廷;基于混合動力與能量回收的液壓挖掘機節(jié)能研究[D];浙江大學;2006年
相關(guān)碩士學位論文 前6條
1 紀云鋒;液壓挖掘機動力系統(tǒng)的節(jié)能控制研究[D];中南大學;2004年
2 裴磊;混合動力挖掘機勢能回收系統(tǒng)的研究[D];浙江大學;2008年
3 何為;長安混合動力汽車排放研究[D];重慶交通大學;2009年
4 劉全川;三自由度搖擺臺方案設計與動力學分析[D];南京理工大學;2009年
5 段武斌;大噸位六分力測量系統(tǒng)原位標定及數(shù)據(jù)處理方法研究[D];南京理工大學;2009年
6 張敏杰;油液混合動力挖掘機動力系統(tǒng)研究[D];浙江大學;2010年
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