動(dòng)力風(fēng)機(jī)風(fēng)量調(diào)節(jié)集成式液壓閥控伺服缸系統(tǒng)特性研究

  石家莊風(fēng)機(jī)廠 石家莊風(fēng)機(jī) 石家莊市風(fēng)機(jī)廠 石家莊風(fēng)機(jī)維修 石家莊風(fēng)機(jī)銷售
本文研究了一種新型集成式風(fēng)機(jī)用機(jī)液伺服缸，通過(guò)操縱鼓風(fēng)機(jī)的風(fēng)筒轉(zhuǎn)盤實(shí)現(xiàn)風(fēng)機(jī)風(fēng)量的調(diào)節(jié)。該文在對(duì)伺服缸結(jié)構(gòu)分析的基礎(chǔ)上，著重對(duì)控制系統(tǒng)特性進(jìn)行了詳細(xì)研究。適應(yīng)全球裝備制造業(yè)市場(chǎng)的一體化發(fā)展態(tài)勢(shì)，創(chuàng)新型機(jī)械裝備的研發(fā)和生產(chǎn)，是一個(gè)國(guó)家工業(yè)化科技水平提升的重要標(biāo)志。創(chuàng)新型、集成式、高效率的現(xiàn)代機(jī)械裝備，必將成為現(xiàn)代化工業(yè)的發(fā)展主流。因此，“中國(guó)制造”正面臨著前所未有的挑戰(zhàn)。
首先，本文詳細(xì)分析研究了伺服缸的具體結(jié)構(gòu)和工作機(jī)理。結(jié)構(gòu)研究主要包括對(duì)旋轉(zhuǎn)配油裝置、集成式控制閥、集成式閥體、液壓缸缸體及連接裝置、密封支承導(dǎo)向和替換式阻尼裝置等結(jié)構(gòu)的分析；另外，結(jié)合伺服缸的結(jié)構(gòu)特點(diǎn)，也對(duì)伺服缸以及旋轉(zhuǎn)配油裝置的工作機(jī)理進(jìn)行了完整地論述；其次，基于工程流體力學(xué)、伺服缸物理模型以及古典控制理論，對(duì)集成式閥控差動(dòng)缸系統(tǒng)進(jìn)行了數(shù)學(xué)建模，并在系統(tǒng)數(shù)學(xué)模型的基礎(chǔ)上，運(yùn)用計(jì)算機(jī)仿真技術(shù)對(duì)控制系統(tǒng)的性能參數(shù)進(jìn)行了全面的分析；最后，本文對(duì)替換式阻尼裝置中阻尼孔通徑和伺服閥口面積梯度等主要參數(shù)運(yùn)用對(duì)比法進(jìn)行了分析和優(yōu)選，并討論其對(duì)控制系統(tǒng)快速性、準(zhǔn)確性、穩(wěn)定性和動(dòng)態(tài)位置剛度的影響，對(duì)以上參數(shù)的選取提供了重要的理論依據(jù)。
根據(jù)研究結(jié)果表明，本文研究的機(jī)液伺服缸體積小、重量輕、運(yùn)行可靠，系統(tǒng)穩(wěn)定性和快速性比較理想，并擁有良好的輸出精度，能夠滿足風(fēng)機(jī)工作要求，為引風(fēng)機(jī)風(fēng)量調(diào)節(jié)伺服機(jī)構(gòu)的實(shí)驗(yàn)測(cè)試和最終產(chǎn)品的定型提供理論基礎(chǔ)。 
 
關(guān)鍵詞：風(fēng)機(jī)，風(fēng)量調(diào)節(jié)，集成式閥控缸，建模仿真，控制性能

The Research of the Characteristics of Fan Air Volume Adjusting Servo Hydraulic        

With the development of science and technology, modern machinery and  equipment is turning  towards  development  of  the  integrated  form  and  highly  effective  direction.  the country's latest five-year plan clearly pointed out how to create a new situation of scientific development, the rise of the equipment manufacturing industry is the important symbol of national comprehensive national strength promotion, new science and technology and the current  equipment  manufacturing  level  of  integration  is  bound  to  fly  in  the  quality  of people's production and  life style.  Our country independent research  and development of new equipment is also gradually playing an important role in the world. Thus, cooperation and communication between countries is increasing frequently, Made In China faced with unprecedented challenges.
In this paper, a new type of integrated hydraulic servo valve control hydraulic cylinder was designed with optimization method, which manipulates the ram turntable Angle of the blower,  so  as  to  realize  the  adjustment  of  the  fan  air  volume.  The  mechanism  has  less weight  and  smaller  size  ,  but  more  reliable  operation.  It  turned  out  to  satisfy  the requirement of the fan.
At  first,  This  article  introduces  the  hydraulic  servo  mechanism  of  concrete  structure, including control valve servo cylinder and the connecting device. At the same time, it does not only made detailed introductions to the selection of the hydraulic cylinder seal and the Settings  of  bearing  guide,  but  also  the  design  of  damping  hole;  Secondly,  The mathematial model of three-way valve controlled differential cylinder was established on the  basis  of  valve  linear  equation,  continuity  equation  and  force  balance  equation,  and which  was  used  for  analyzing  and  machine  performance  parameters  of  hydraulic  servo system;  At last,  computer  simulation  was  contributed  to  the  simulation  of  the  system,  in respectively from the time domain and frequency domain analysis of system performance. In  addition,  the  main  structure  parameters,  such  as  damper  orifice  diameter  and  the  area gradient  of  servo  valve  port  was  investigated,  and  the  influence  of  rapidity,  accuracy, stability and dynamic stiffness of the system was investigated.
According to the simulation results showed that it is the reasonable for the design of the machine  hydraulic  servo  hydraulic  cylinder.  System  stability  and  rapidity  are  ideal  and have more precise output. To sum up, the designed servo hydraulic cylinder is successful, and the research results can provide some theoretical foundation for the experimental test of fan air volume adjusting servo mechanism and finalizing the design.
 
Key  words：fan,  air  regulation  integrated,  valve-controlled  cylinder,  modeling  and simulation, control characteristic