力士樂REXROTH方向比例閥上海供應，我司：
東莞市廣聯(lián)自動化科技有限公司我司以“優(yōu)質(zhì)產(chǎn)品，優(yōu)質(zhì)服務，以客為先"的宗旨，為客戶提供原裝正廠的優(yōu)質(zhì)產(chǎn)品，以合理的性價比，快捷的交貨期，熱情周到的服務，為客戶提供高品質(zhì)、經(jīng)濟耐用、品種齊全的產(chǎn)品，從而贏得客戶的*贊賞我們將不負客戶對本公司的期望和厚愛，努力為廣大客戶提供優(yōu)質(zhì)的產(chǎn)品、良好的售后服務，努力成為*秀的自動化設備供應商。本公司所有產(chǎn)品空運到達中國！貨期穩(wěn)定！假一賠十! 歡迎廣大客戶咨詢！我們竭誠為您服務?。?br>力士樂REXROTH方向比例閥上海供應，力士樂方向比例閥：
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4WE6D51/AG24NZ4 電磁閥4WE6E系列
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，力士樂方向比例閥運行原理：
德國REXROTH力士樂比例閥當左側(cè)受力大于右側(cè)受力與感載彈簧預緊力之和時(此時的壓力為Ps),活塞不斷右移,zui后使閥門與閥座接觸而關閉,將輸入輸出油路隔絕,達到平衡狀態(tài)。P1若進一步升高時,則活塞左移,閥門再度打開,制動液流入出油口,使P2也升高。Rexroth比例閥VT-NE30-2X的輸入壓力為零 即 ;時,輸出腔的壓力通過比例閥皮圈凸筋間空酸從唇口泄去高壓,同時,當比例閥芯所受的彈簧力大于向右的液壓力時,比例閥彈簧將比例閥芯推回原始位置,使比例閥芯與比例閥皮圈內(nèi)孔*分離而*泄壓 此時輸入輸出壓力為零 隨著輸入壓力 增大,即左增大,使比例滑閥單向力平衡遭破壞 當<>&;6-時,比例閥芯左移與比例閥皮圈產(chǎn)生間隙形成節(jié)流并混合比倒閥常見的故障為:1,輸入輸出壓力同步 2,低壓時輔人輸出壓力同步,高壓時輸入輸出壓力正常 3,低壓時輸入輸出壓力正常,高壓時輸入輸出壓力不正常 ,1994 №為零時為混合比倒圉工作性能試驗，試驗時,先將管內(nèi)的空氣排凈,然后分別取低,中,高三個壓力進行試驗,輸入輔出壓力符合即為合格。 |
