海思達(dá)HYSTAR葉片泵HQ15-26-F-RAA-30 HQ15-31-F-RAA-30
怎么爲(wèi)液壓系統(tǒng)選用液控單向閥?
單向閥,大家都應(yīng)該很了解,今天講的是液壓系統(tǒng)中的液控單向閥,它是特殊的單向閥,不僅能實現(xiàn)一般單向閥的功能外,還可以根據(jù)需要實現(xiàn)逆向的流動。
在選擇液壓系統(tǒng)的液控單向閥時,應(yīng)當(dāng)考慮到液控單向閥所需要的控制壓力。除此之外,還要考慮到系統(tǒng)壓力變化對控制油路壓力變化的影響,以免出現(xiàn)誤啓。
液控單向閥回路設(shè)計應(yīng)確保反向油流有足夠的控制壓力,確保閥芯的開啓。內(nèi)洩式和外洩式液控單向閥,分別用于反向出口腔油流被壓較低或較高的場合,是爲(wèi)降低控制壓力。
當(dāng)液壓系統(tǒng)中液控單向閥從控制活塞將閥芯推開,使反向油流通過,到卸掉控制油,控制活塞返回,是閥芯重新關(guān)閉的過程中,控制活塞容腔中的油要從控制油口排出。如果控制油路回油背比較高,排油會不順暢,則控制活塞不能夠迅速的返回,閥芯的關(guān)閉速度也要受到影響,這時需要快速切斷反向油流的系統(tǒng)來說是不能滿足要求的。因此,可以用外洩式液控單向閥,將壓力油引入外洩口,強迫控制活塞迅速返回。
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S-BSG-03-2B3B-D24-N1-51 S-BSG-03-2B3B-A240-N1-51 S-BSG-03-3C3-D24-N1-51 S-BSG-03-1PN/NP
S-BSG-06-2B2-D24-N1-51 S-BSG-06-2B2-A240-N1-51 S-BSG-06-2B3A-D24-N1-51 S-BSG-06-2B3A-A240-N1-51
S-BSG-06-2B3B-D24-N1-51 S-BSG-06-2B3B-A240-N1-51 S-BSG-06-1PN/NP S-BSG-10-2B3A-D24(A240)-N1-51
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BST-06-2B3B-D24(A240)-N1-48 BST-06-2B2-D24(A240)-N1-48 BST-10-2B3A-D24(A240)-N1-48
BST-10-2B3B-D24(A240)-N1-48
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