德國力士樂比例閥3DREP6C-2X/25EG24N9K4/M現(xiàn)貨

比例閥結(jié)構(gòu)原理：
輸入信號增大，供氣用電磁閥先導(dǎo)閥1換向，而排氣用電磁先導(dǎo)閥7處于復(fù)位狀態(tài)，則供氣壓力從SUP口通過閥1進(jìn)入先導(dǎo)室5，先導(dǎo)室壓力上升，氣壓力作用在膜片2的上方，則和膜片2相連的供氣閥芯4便開啟，排氣閥芯3關(guān)閉，產(chǎn)生輸出壓力。此輸出壓力通過壓力傳感器6反饋至控制回路8。在這里，與目標(biāo)值進(jìn)行快速比較修正，知道輸出壓力與輸入信號成一定比例為止，從而得到輸出壓力與輸入信號的變化成比例的變化。由于沒有噴嘴擋板機構(gòu)，故閥對雜質(zhì)不敏感，可靠性高。
一般說來，好像伺服系統(tǒng)都是閉環(huán)控制，比例閥多用于開環(huán)控制;其次比例閥類型要多，有比例壓力、流量控制閥等，控制比伺服要靈活一些。從他們內(nèi)部結(jié)構(gòu)看，伺服閥多是零遮蓋，比例閥則有一定的死區(qū)，控制精度要低，響應(yīng)要慢。但從發(fā)展趨勢看，特別在比例方向流量控制閥和伺服閥方面，兩者性能差別逐漸在縮小，另外比例閥的成本比伺服閥要低許多，抗污染能力也強!

Rexroth比例閥在使用過程中,應(yīng)注意對感載比例閥的檢查調(diào)整.當(dāng)感載彈簧過松時,后輪制動力就會減小,此時應(yīng)調(diào)整感載彈簧,但不可調(diào)得過緊,否則會使后輪制動力太大而失去側(cè)向控制能力,發(fā)生甩尾。正確的調(diào)整方法是.在平坦的地面上使車身落地,車輛空載,調(diào)整感載彈簧,使杠桿與活塞間無間隙即可.在有條件的情況下,可采用的調(diào)整方法.通過測量前后輪制動管路壓力,繪制壓力分配特性曲線,確認(rèn)調(diào)整是否合格。

R900974816 3DREP6A-2X/16EG24N9K4/M

R900967209 3DREP6A-2X/16EG24N9K4/V

R900954417 3DREP6A-2X/25EG24K4/M

R900945686 3DREP6A-2X/25EG24K4/V

R900955803 3DREP6A-2X/25EG24N9K4/M

R900945801 3DREP6A-2X/25EG24N9K4/V

R901395467 3DREP6A-2X/45EG24JK31/V

R900954418 3DREP6A-2X/45EG24K4/M

R900962045 3DREP6A-2X/45EG24N9K4/M

R900959129 3DREP6A-2X/45EG24N9K4/V

R901323921 3DREP6A-2X/45EG24NJK31/V

R901089114 3DREP6B-2X/16EG24N9K4/M

R901244923 3DREP6B-2X/16EG24N9K4/V

R900964865 3DREP6B-2X/25EG24K4/M

R900961227 3DREP6B-2X/25EG24K4/V

R900956636 3DREP6B-2X/25EG24N9K4/M

R900947955 3DREP6B-2X/25EG24N9K4/V

R901058810 3DREP6B-2X/25EG24NJK31/M

R900728553 3DREP6B-2X/45EG24K4/M

R900713629 3DREP6B-2X/45EG24N9K4/M

R901077122 3DREP6B-2X/45EG24NJK31/M

R900954419 3DREP6C-2X/16EG24K4/M

R900978482 3DREP6C-2X/16EG24K4/V

R900956100 3DREP6C-2X/16EG24N9K4/M

R900944231 3DREP6C-2X/16EG24N9K4/V

R901366934 3DREP6C-2X/16EG24NJK31/M

R900974956 3DREP6C-2X/25EG24JK31/M

R901015797 3DREP6C-2X/25EG24JK31/V

R900954420 3DREP6C-2X/25EG24K4/M

R900932154 3DREP6C-2X/25EG24K4/V

R900754960 3DREP6C-2X/25EG24N5K4/M

R901047699 3DREP6C-2X/25EG24N6JK31/M

R900753106 3DREP6C-2X/25EG24N6K4/M

R901432622 3DREP6C-2X/25EG24N6K4/V

R900955887 3DREP6C-2X/25EG24N9K4/M

R900929529 3DREP6C-2X/25EG24N9K4/V

R900959251 3DREP6C-2X/25EG24NJK31/M

R900961820 3DREP6C-2X/25EG24NJK31/V

R900967702 3DREP6C-2X/45EG24JK31/M

R900954421 3DREP6C-2X/45EG24K4/M

R901352667 3DREP6C-2X/45EG24K4/V

R901412135 3DREP6C-2X/45EG24N5K4/M

R900955796 3DREP6C-2X/45EG24N9K4/M

R900947444 3DREP6C-2X/45EG24N9K4/V

德國力士樂比例閥3DREP6C-2X/25EG24N9K4/M現(xiàn)貨