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聯系人 張波 電話 021-60962126 13296052126

上海明豐倉庫大量現貨---博世力士樂中國總代理

液壓的定義:一個完整的液壓系統由五個部分組成，即動力元件、執行元件、控制元件、輔助元件和液壓油。動力元件的作用是將原動機的機械能轉換成液體的壓力能，指液壓系統中的油泵，它向整個液壓系統提供動力。液壓泵的結構形式一般有齒輪泵、葉片泵和柱塞泵。執行元件(如液壓缸和液壓馬達)的作用是將液體的壓力能轉換為機械能，驅動負載作直線往復運動或回轉運動。 控制元件(即各種液壓閥)在液壓系統中控制和調節液體的壓力、流量和方向。根據控制功能的不同，液壓閥可分為壓力控制閥、流量控制閥和方向控制閥。壓力控制閥又分為溢流閥(安全閥)、減壓閥、順序閥、壓力繼電器等；流量控制閥包括節流閥、調整閥、分流集流閥等；方向控制閥包括單向閥、液控單向閥、梭閥、換向閥等。根據控制方式不同，液壓閥可分為開關式控制閥、定值控制閥和比例控制閥。 輔助元件包括油箱、濾油器、油管及管接頭、密封圈、壓力表、油位油溫計等。 液壓油是液壓系統中傳遞能量的工作介質，有各種礦物油、乳化液和合成型液壓油等幾大類。
液壓元件：
　　液壓元件中可分為動力元件和控制元件以及執行元件三大類。盡管都是液壓元件，它們的自身功能和安裝裝使用的技術要求也不盡相同，現分別介紹如下：
　　一、什么是動力元件？
　　動力元件指的是各種液壓泵。
　　1、齒輪油泵和串聯泵（包括外嚙合與內嚙合）兩種結構型式。
　　2、葉片油泵（包括單級泵、變量泵、雙級泵、雙聯泵）。
　　3、柱塞油泵，又分為軸向柱塞油泵和徑向柱塞油泵，軸向柱塞泵有定量泵、變量泵、（變
　　量泵又分為手動變量與壓力補償變量、伺服變量等多種）從結構上又分為端面配油和閥式配油油兩種配油方式，而徑向柱塞泵的配油型式，基本上為閥式配油。
　　液壓元件分類
　　動力元件：齒輪泵、葉片泵、柱塞泵、螺桿泵；
　　執行元件：液壓缸、活塞液壓缸、柱塞液壓缸、擺動液壓缸、組合液壓缸；
　　液壓馬達：齒輪式液壓馬達、葉片液壓馬達、柱塞液壓馬達；
　　控制元件：方向控制閥、單向閥、換向閥；
　　壓力控制閥：溢流閥、減壓閥、順序閥、壓力繼電器等；
　　流量控制閥：節流閥、調速閥、分流閥；
　　輔助元件：蓄能器、過濾器、冷卻器、加熱器、油管、管接頭、油箱、壓力計、流量計、密封裝置等；

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