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PARKER比例閥D31FCE01CC1N1B70維修保養(yǎng)技術(shù)支持

更新時間:2017-10-24      點擊次數(shù):2498

PARKER比例閥D31FCE01CC1N1B70維修保養(yǎng)輸入信號增大,供氣用電磁閥先導閥1換向,而排氣用電磁先導閥7處于復位狀態(tài),則供氣壓力從SUP口通過閥1進入先導室5,先導室壓力上升,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,與目標值進行快速比較修正,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。

特點

1)可實現(xiàn)壓力、速度的無極調(diào)節(jié),避免了常通的開關(guān)式氣閥換向時的沖擊現(xiàn)象。

2)能實現(xiàn)遠程控制和程序控制。

3)與斷續(xù)控制相比,系統(tǒng)簡化,元件大大減少。

4)與液壓比例閥相比,體積小、重量輕、結(jié)構(gòu)簡單、成本較低,但響應速度比液壓系統(tǒng)慢得多,對負載變化也比較敏感。

5)使用功率小、發(fā)熱少、噪聲低。

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