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          液壓增壓器工作原理
          發布時間: 2022-02-14 10:37

          液壓增壓器又稱油壓增壓器、連續自動增壓器、往復增壓器、液壓增壓閥、液壓放大器等,工作原理如上圖所示:
                液壓增壓器本質上就是自動化增壓缸。
                液壓增壓器為虛線框內所有零件,包含低壓活塞LP,高壓活塞HP,液控換向閥,進液單向閥,出液單向閥,液控單向閥,外部殼體。
               當電磁換向閥換向到右位時候,低壓系統供油到液壓增壓器P口,低壓液壓油經過進液單向閥,到達高壓活塞HP頂部,推動高、低壓活塞向下運動;
               當高壓活塞HP到達下止點位置時候,液控換向閥先導控制口上腔與低壓液壓油接通,由于先導控制口上腔面積比下腔大,液控換向閥將往下移動,實現自動換向。
               液控換向閥換向后,低壓液壓油從P口進入,經過液控換向閥,到達低壓活塞LP底部,推動高壓活塞HP向上運動,壓縮高壓活塞HP頂部液柱,這時,進液單向閥將關閉,出液單向閥打開,輸出高壓液壓油。
               當高壓活塞HP到達上止點位置時候,液控換向閥先導控制口上腔將與回油接通,先導控制口下腔的壓力油將推動換向閥往上移動,再次換向到圖上所示位置。
          如此往復,實現連續增壓。
               當電磁換向閥換向到中位時候,液壓增壓器自動保壓。
               當電磁換向閥換向到左位時候,低壓系統供油到液壓增壓器T口,頂開內部液控單向閥,同時也供油至負載油缸有桿腔,推動油缸回程。


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