hydraulic pilot control 中文意思是什麼
hydraulic pilot control
解釋
輔助液力控制-
In order to overcome the disadvantages of servo valves and the spool valves, the fast hydraulic system controlled by the fast on - off valve is researched which uses the on - off valves as the pilot valves. they are used to control the opening and closing of the logic valves, thus they can control the pressure and the flow. so they can control the movement direction and the velocity of the piston
為了克服伺服閥和滑閥的不足，本文所研究的基於快速開關閥的快速液壓系統採用快速開關閥作先導閥，控制邏輯閥的開啟和關閉，從而控制液流的通斷和壓力的高低、流量的大小，以實現對活塞運動方向、速度的控制。 -
First hydraulic is a large - scale manufacturer of hydraulic products with its main products such as steel tube assemblies, hydraulic tube fittings, hose assemblies, pilot control hose assemblies and hydraulic pump stations
福事特液壓是以生產鋼管總成、液壓管接頭、軟管總成、先導控制管總成、液壓泵站為主的大型液壓產品製造商。 -
From the research of the experiment and the simulation, conclusions and suggestions are gotten : ( 1 ) the fast hydraulic system which uses fast on - off valve as the pilot valves to control the logic valve is an available system
從模擬和實驗研究可得出如下結論和建議： （ 1 ）本課題所研究的採用快速開關閥作先導閥控制邏輯閥的快速液壓系統，是比較可行的方案。 -
According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly
本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。 -
Hydraulic fluid power - solenoid actuated pilot operated directional control valve and hydraulic pilot operated directional control valve
液壓電液動換向閥和液動換向閥 -
This paper carries out pilot study on water hydraulic proportional control valve, and selects water hydraulic proportional throttle valve as research object, of which the structure is comparatively simple
論文對水壓比例控制閥進行了初步研究，選擇結構較為簡單的水壓比例節流閥作為研究對象。 -
That is, through analysis of the principle on flow control and " hydraulic transistor ", design and calculation of flow control characteristic as well as main parts in valve inner chamber, a piloted reducing valve will be installed between main valve and pilot valve. after a pressure - difference compensating reducing valve was added in the non - pressure compensating piloted reducing valve of the flow control valve in vlalvistor valve, the calculation on control characteristic emulation and load characteristic emulation has been carried out. the result of the calculation shows that after pressure compensating reducing valve was added, the linearity of the control characteristics has been greatly improved thus eliminating influence upon outlet flow by load pressure - change of the hydraulic system and improving performance characteristics of the hydraulic component
文章還在對瑞典valvistor閥的插裝比例閥研究的基礎上，提出了一種新的流量控制原理，即：通過對流量控制和「液壓晶體管」原理的分析、流量控制特性及閥內腔主要結構件的設計計算，在主閥和導閥之間增設先導減壓閥，並進一步對valvistor閥的流量控制閥之無壓力補償先導減壓閥、加入壓差補償減壓閥后的控制特性進行了模擬計算和負載特性模擬計算，結果表明：增設壓力補償先導增壓閥后，其控制特性曲線變得非常線性，從而消除了液壓系統負載壓力變化對主閥輸出流量的影響。
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