R900441810 Z2FS6-7-4X/2QV
R900441810 Z2FS6-7-4X/2QV
R900441810 Z2FS6-7-4X/2QV
力士樂REXROTH液控單向閥應用
(1)保持壓力。
滑閥式換向閥都有間隙泄漏現(xiàn)象，只能短時間保壓。當有保壓要求時，可在油路上加一個液控單向閥，利用錐閥關閉的嚴密性，使油路長時間保壓。
(2)液壓缸的“支承”。
在立式液壓缸中，由于滑閥和管的泄漏，在活塞和活塞桿的重力下，可能引起活塞和活塞桿下滑。將液控單向閥接于液壓缸下腔的油路，則可防止液壓缸活塞和滑塊等活動部分下滑。
(3)實現(xiàn)液壓缸鎖緊。
當換向閥處于中位時，兩個液控單向閥關閉，可嚴密封閉液壓缸兩腔的油液，這時活塞就不能因外力作用而產生移動。
(4)大流量排油。
液壓缸兩腔的有效工作面積相差很大。在活塞退回時，液壓缸右腔排油量驟然增大，此時若采用小流量的滑閥，會產生節(jié)流作用，限制活塞的后退速度；若加設液控單向閥，在液壓缸活塞后退時，控制壓力油將液控單向閥打開，便可以順利地將右腔油液排出。
(5)作充油閥。
立式液壓缸的活塞在高速下降過程中，因高壓油和自重的作用，致使下降迅速，產生吸空和負壓，必須增設補油裝置。液控單向閥作為充油閥使用，以完成補油功能。
(6)組合成換向閥。
本公司是力士樂REXROTH武漢一級代理，如有需求請聯(lián)系力士樂REXROTH
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