本文選題：混凝土泵車 + 平衡回路　； 參考：《燕山大學(xué)》2014年碩士論文

【摘要】：混凝土泵車基于它便捷化的操作方式，，在工程中的應(yīng)用是越來越廣泛。泵車技術(shù)現(xiàn)在主要是朝著智能、安全、高效節(jié)能的方向發(fā)展。其中臂架電液控制技術(shù)作為智能化的一個(gè)重要方向，在工程實(shí)際中將有非常廣泛的應(yīng)用潛力。臂架電液控制系統(tǒng)采用的是閉環(huán)控制方法，并且每節(jié)臂都是一個(gè)獨(dú)立的閉環(huán)控制系統(tǒng)，通過控制各節(jié)臂的角度位置來實(shí)現(xiàn)控制臂架末端最終的澆筑位置的目的。 泵車臂架智能化的主要研究方向是電控，同時(shí)其液壓系統(tǒng)的好壞對(duì)其也有非常重要的影響，這主要體現(xiàn)在液壓平衡回路系統(tǒng)響應(yīng)的延遲和系統(tǒng)的穩(wěn)定性，因此在不以犧牲效率的前提下解決這兩個(gè)問題即是本文的主要研究內(nèi)容和目的。 本文首先對(duì)平衡回路系統(tǒng)進(jìn)行了分析，研究了各類平衡回路及其適應(yīng)場(chǎng)合，重點(diǎn)研究了變負(fù)載工況的平衡回路。可以看出，利用傳統(tǒng)的研究方法無法從根本上解決平衡回路存在的動(dòng)態(tài)響應(yīng)差和控制壓力高的問題，因此本文結(jié)合組合閥的思想（進(jìn)回油獨(dú)立控制），提出并設(shè)計(jì)了新的平衡回路系統(tǒng)。運(yùn)用數(shù)學(xué)建模的方法對(duì)臂架的閥控非對(duì)稱液壓缸系統(tǒng)進(jìn)行建模，得出其輸入輸出的關(guān)系。利用Simulink工具箱建立了閥控缸平衡回路的控制模型，同時(shí)利用AMESim進(jìn)行了液壓系統(tǒng)模型的搭建。在一定的實(shí)驗(yàn)基礎(chǔ)上，得到了較為準(zhǔn)確的聯(lián)合仿真模型，然后對(duì)帶傳統(tǒng)平衡閥的回路與新的平衡回路進(jìn)行了仿真實(shí)驗(yàn)的對(duì)比研究。從流量的角度分析了執(zhí)行件運(yùn)動(dòng)速度穩(wěn)定性較好，響應(yīng)較快，且超調(diào)量及調(diào)整時(shí)間都較�。粡倪M(jìn)油腔壓力的角度分析，系統(tǒng)多余壓力和壓力沖擊情況都比傳統(tǒng)的平衡回路要好，節(jié)能效果好。
[Abstract]:The concrete pump car is based on its convenient operation mode, the application in the engineering is more and more extensive. The technology of pump car is now mainly towards the direction of intelligence, safety, high efficiency and energy saving. As an important direction of intelligence, the arm electric hydraulic control technology will have a very wide application potential in the engineering practice. The system adopts a closed loop control method, and each arm is an independent closed loop control system. The end of the end of the control arm is controlled by controlling the angle position of each arm.
The main research direction of the pump truck's arm is the electric control, and the quality of its hydraulic system also has a very important influence on it. This is mainly reflected in the delay of the response of the hydraulic balance loop system and the stability of the system. Therefore, it is the main research content and purpose of this paper to solve the two problems without sacrificing the efficiency.
This paper first analyzes the balance loop system, studies all kinds of balance circuits and their adaption situations, and focuses on the balance loop of the load changing conditions. It can be seen that the traditional research methods can not solve the problems of dynamic response and high control pressure in the balance loop. Therefore, this paper combines the combined valve. The new balance loop system is put forward and designed. A mathematical modeling method is used to model the valve controlled unsymmetrical hydraulic cylinder system of the arm frame, and the relationship between the input and output is obtained. The control model of the valve control cylinder balance loop is established by using the Simulink toolbox, and the hydraulic system model is carried out by AMESim. On the basis of certain experiments, a more accurate joint simulation model is obtained, and then the comparison of the simulation experiments with the traditional balance valve circuit and the new balance loop is carried out. From the point of view of the flow, the motion speed stability of the actuator is better, the response is faster, and the overshoot and the adjustment time are small; The analysis of the pressure angle of the oil inlet chamber shows that the system's surplus pressure and pressure impact are better than the traditional balance circuit, and the energy saving effect is good.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU646

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 夏琴香,潘東升,丘宏揚(yáng),阮鋒;液壓仿真技術(shù)在鍛壓設(shè)備中的應(yīng)用及展望[J];鍛壓裝備與制造技術(shù);2005年02期

2 唐修俊;吳智勇;石培科;劉海明;;混凝土泵車智能臂架運(yùn)動(dòng)仿真與控制研究[J];中國工程機(jī)械學(xué)報(bào);2008年01期

3 金年喜;;現(xiàn)代混凝土泵車技術(shù)與發(fā)展方向[J];廣東建材;2006年12期

4 席平原;基于Simulink的機(jī)械振動(dòng)系統(tǒng)仿真[J];機(jī)床與液壓;2005年06期

5 李鄂民;;超越負(fù)載的液壓平衡方法[J];機(jī)床與液壓;2005年12期

6 葛玉柱;胡軍科;;液壓系統(tǒng)限速與鎖緊回路分析[J];機(jī)床與液壓;2010年06期

7 劉天豪;張學(xué)亮;胡守偉;劉桓龍;柯堅(jiān);;靜液壓無級(jí)變速器的聯(lián)合仿真研究[J];機(jī)床與液壓;2010年19期

8 郭津津;王曉蘭;袁旭;;FluidSIM軟件在《液壓傳動(dòng)》教學(xué)中的應(yīng)用[J];機(jī)床與液壓;2011年02期

9 陳立東;董麗濤;馮利臻;石磊;孫秀英;;清雪車液壓避障系統(tǒng)的設(shè)計(jì)[J];機(jī)床與液壓;2011年16期

10 李成義;我國混凝土泵車產(chǎn)品發(fā)展?fàn)顩r分析[J];今日工程機(jī)械;2003年10期

相關(guān)博士學(xué)位論文 前1條

1 林濤;液壓機(jī)械傳動(dòng)平地機(jī)關(guān)鍵技術(shù)研究[D];長安大學(xué);2012年

本文編號(hào)：2032376