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原裝產(chǎn)品德國Rexroth力士樂4通伺服閥/力士樂伺服閥價格
REXROTH4通伺服閥*級液壓放大的噴嘴磨損或噴嘴部分堵塞;滑閥卡澀;滑閥凸肩的銳邊磨損;EH壓力至左右側(cè)油的縮孔部分堵塞;伺服閥機械零偏調(diào)整不準確。這些原因都有可能造成滑閥凸肩不能精確封堵住壓力油的進油口和有壓回油的泄油口,使滑閥發(fā)生往復動作,油動機下油缸不斷處于進油或泄油的過程,隨著伺服閥泄漏量的增加,伺服卡與伺服閥組成的閉環(huán)系統(tǒng)就會處于振蕩狀態(tài),一但閉環(huán)系統(tǒng)出現(xiàn)振蕩,在高壓EH油的沖蝕下,滑閥凸肩的銳邊將會被磨損,進一步加重伺服閥的泄漏量,汽門的抖動幅度也將迸一步增大,這種惡性循環(huán)使得油動機的下油缸不停的進油和泄油,調(diào)門也隨之開和關,zui終引發(fā)調(diào)節(jié)汽門大幅抖動的故障。3調(diào)節(jié)汽門在靜態(tài)調(diào)試階段曾發(fā)現(xiàn)伺服閥機械零偏有偏差,機械零偏使3調(diào)門有輕微的晃動現(xiàn)象,臨時對機械零偏進行了調(diào)整,消除了晃動現(xiàn)象,但由于沒有經(jīng)過校驗臺的校驗,機械零偏的調(diào)整精度不高。所以對于3調(diào)節(jié)汽門伺服閥,經(jīng)過一段時間的使用,其滑閥凸肩的銳邊磨損應當是比較嚴重的。故障處理后,將3調(diào)節(jié)汽門的伺服閥拆下,送返至上汽廠清洗檢修,廠家檢測結果與我們的判斷是*的,滑閥凸肩的銳邊已磨損,無法修復,由廠家重新更換了新的伺服閥。力士樂REXROTH伺服閥特殊用途的特殊材料。德國公司如紅寶石噴嘴擋板材料,以防止體噴嘴飼料造成傷害和擋板,以減少靜態(tài)和動態(tài)性能,因此,縮短工作生活。機械反饋桿球頭也生產(chǎn)紅寶石,和緩沖,以防止球的小槽之間的磨損,因此,失去控制的閥門,并有尖叫聲。
原裝產(chǎn)品德國Rexroth力士樂4通伺服閥/力士樂伺服閥價格
規(guī)格10
元件系列5X
zui大工作壓力315 bar
zui大流量180 l/min
應用根據(jù)防爆指示94/9/EC
適用于美國FM許可"VH1"
環(huán)境溫度范圍–20 °C至60 °C
原裝產(chǎn)品德國Rexroth力士樂4通伺服閥/力士樂伺服閥價格
R900637136 DUESE 0,3 M8X1,0 X17,5 SW3 4WS2EM10-42/
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