閥轉換機構 的英文怎麼說

中文拼音 [fázhuǎnhuànjīgòu]
閥轉換機構 英文
valve-switching mechanism
  • 閥 : 名詞1 （指在某方面有支配勢力的人物或家族） established house or power group; a powerful person or...
  • 轉 : 轉構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 機 : machineengine
  • 構 : Ⅰ動詞1 （構造; 組合） construct; form; compose 2 （結成） fabricate; make up 3 （建造; 架屋） bui...
  • 轉換 : change; transform; convert; switch
  • 機構 : 1 [機械工程] （機械的內部構造或一個單元） mechanism 2 （機關; 團體） organ; organization; institu...
  1. Hydraulic concrete crusher detail : all round, extremely efficient concrete crusher system for concrete demolition in general, and reinforcement exposure in particular. the system works immissionfree, i. e. : it does not produce any noise, dust or cibrations and operates without water. description : pliers qty 1, hydraulic power pack qty 1, 10m long oil pipe set of hoses, high pression qty 2, accessories bag qty 1

    啟動電機帶動油泵運轉，液壓油直接返回油箱手動轉動換向閥三位四通閥一個位置后，液壓油進入系統推動活塞，活塞桿伸出，帶動鉗體收縮，從而破碎鋼筋混凝土結構，反向轉動換向閥，鉗體松開，完成一個工作循環。
  2. The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced

    論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況，在回顧電梯液壓控制系統節能技術的基礎上，介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理，分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式；詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計，重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容；最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。
  3. According to the time variation and feature extraction difficulty of rotating machinery vibration signals, the rule of choosing wavelet basis function and wavelet denoising soft - thresholding value is proposed after making further research on wavelet transform technique, using for denoising rotating machinery vibration signals the conception of " energy " is proposed, based on the theory that signals energy in all frequency can be affected by faults deeply, to construct feature vectors of rotating machinery vibration signals which can give a convenient disposal way to fault feature extraction and fault intellectual diagnosis

    針對旋轉機械振動信號的非平穩性及特徵難以提取的特點，通過對小波變換技術的進一步研究，提出旋轉機械振動信號處理的小波基函數選擇原則及小波包消噪的軟閥值原則。利用小波包變換對旋轉機械振動信號進行消噪處理和特徵提取。並以「能量」為元素，構造旋轉機械振動信號的特徵向量，從而為旋轉機械振動信號的故障特徵提取以及后續的故障智能診斷提供了一種便捷的處理方法。
  4. The nonlinear problem is ubiquitous and is difficult to solve in electro - hydraulic servo system. it is caused by the throttling property, because of the existing of the servo valve, proportion valve and throttling valve, by the dead band, the back lash and so on

    非線性是電液伺服系統中普遍存在且至今沒有很好解決的問題，這些非線性主要由電液轉換和控制元件（伺服閥、比例閥或節流閥）的節流特性和液壓動力機構的滯環及死區等因素引起。
  5. Due to the component of natural gas is very complex in different zone of our country, the product has taked on special design, it set up moore component factor of thirteen kinds, which offer user to select and setup, so as to satisfy measurement for contains various component natural gas, at the same time established many take - pressure way in order to suit to different measure device, and have automatic calculate and display super - compression factor function

    A q型操作器輸出svout ： 010ma 420ma 05v 15v信號，可直接驅動執行機構變頻器或再由伺服放大器去驅動電動調節閥門或由電氣轉換器和閥門定位器去驅動氣動薄膜閥。操作器處于自動工作狀態時，其信號輸入svin和操作輸出信號相當於是直通的。以實現dcs系統或調節器對執行機構的自動控制。
  6. This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination

    本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
  7. This project research mainly includes : consummate the design plan, hardware circuit design, software design, the match between control system and electromagnetic proportion, the anti - interference of control system, and etc. the hardware circuit design of singlechip control system mainly includes odd parts of enlarging circuit, a / d change circuit, d / a change circuit etc. adopt the module to design program in software design

    課題研究內容主要是包括:控制系統設計方案、控制系統硬體設計、軟體設計、系統抗干擾和電源電路設計。系統的硬體採用了模塊結構設計，主要是包括采樣模塊、主控制模塊、 a / d轉換模塊、 d / a轉換模塊、電液比例閥驅動模塊和電機驅動模塊等幾個部分組成。
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