Shanghai Wei-Mi Techonology Co., LTD
主營:REXROTH電磁閥,ATOS比例閥,PARKER柱塞泵,DUPLOMATIC齒輪泵,VICKERS葉片泵,BENTLY傳感器,AIRTEC機械閥,AVENTICS氣動閥
DBW30B2-5X/315-6EG24N9K4液壓機械溢流閥 德國博世力士樂REXROTH溢流閥
溢流閥是壓力控制閥。其作用主要是控制系統(tǒng)壓力,以保護油泵和油路系統(tǒng)的安全及保持油路系統(tǒng)的壓力恒定。通經(jīng)為8毫米的溢流閥是一個小型的直接動作的溢流閥,可以和主溢流閥的遙控口連接,對主溢流閥實現(xiàn)遠程壓力調(diào)節(jié)。溢流閥的遙控口經(jīng)換向閥和油箱連接時,可使油路卸荷。此時溢流閥起卸荷作用。溢流閥的遙控口串聯(lián)換向閥和通經(jīng)為8毫米的溢流閥時,可實現(xiàn)壓力的多級控制。更換溢流閥的調(diào)節(jié)彈簧,可改變其壓力調(diào)節(jié)范圍。手輪順時針轉(zhuǎn)動時,壓力升高。反之壓力降低。
溢流閥是一種液壓壓力控制閥,在液壓設備中主要起定壓溢流作用,穩(wěn)壓,系統(tǒng)卸荷和安全保護作用。
定壓溢流作用:在定量泵節(jié)流調(diào)節(jié)系統(tǒng)中,定量泵提供的是恒定流量。當系統(tǒng)壓力加大時,會使流量需求減小。此時溢流閥開啟,使多余流量溢回油箱,保證溢流閥進口壓力,即泵出口壓力恒定(閥口常隨壓力波動開啟)。
穩(wěn)壓作用:溢流閥串聯(lián)在回油路上,溢流閥產(chǎn)生背壓,運動部件平穩(wěn)性增加。
系統(tǒng)卸荷作用:在溢流閥的遙控口串接溢小流量的電磁閥,當電磁鐵通電時,溢流閥的遙控口通油箱,此時液壓泵卸荷。溢流閥此時作為卸荷閥使用。
安全保護作用:系統(tǒng)正常工作時,閥門關閉。只有負載超過規(guī)定的較限(系統(tǒng)壓力超過調(diào)定壓力)時開啟溢流,進行過載保護,使系統(tǒng)壓力不再增加(通常使溢流閥的調(diào)定壓力比系統(tǒng)高工作壓力高10%~20%)。
實際應用中一般有:作卸荷閥用,作遠程調(diào)壓閥,作高低壓多級控制閥,作順序閥,用于產(chǎn)生背壓(串在回油路上)。
溢流閥一般有兩種結(jié)構(gòu):1、直動型溢流閥 。2、先導式溢流閥。
對溢流閥的主要要求:調(diào)壓范圍大,調(diào)壓偏差小,壓力振擺小,動作靈敏,過載能力大,噪聲小。
先導型溢流閥的導閥部分結(jié)構(gòu)尺寸較小,調(diào)壓彈簧不必很強,因此壓力調(diào)整比較輕便。但因先導型溢流閥要在先導閥和主閥都動作后才能起控制作用,因此反應不如直動型溢流閥靈敏。
與三節(jié)同心結(jié)構(gòu)相比,二節(jié)同心結(jié)構(gòu)的特點是:①主閥芯僅與閥套和主閥座有同心度要求,免去了與閥蓋的配合,故結(jié)構(gòu)簡單,加工和裝配方便。②過流面積大,在相同流量的情況下,主閥開啟高度。换蛘咴谙嗤_啟高度的情況下,其通流能力大,因此,可做得體積小、重量輕。③主閥芯與閥套可以通用化,便于批量生產(chǎn)。
溢流閥在裝配或使用中,由于“O”形密封圈、組合密封圈的損壞,或者安裝螺釘、管接頭的松動,都可能造成不應有的外泄漏。
如果錐閥或主閥芯磨損過大,或者密封面接觸不良,還將造成內(nèi)泄漏過大,甚至影響正常工作。
電磁溢流閥常見的故障有先導電磁閥工作失靈、主閥調(diào)壓失靈和卸荷時的沖擊噪聲等。后者可通過調(diào)節(jié)加置的緩沖器來減少或消除。如不帶緩沖器,則可在主閥溢流口加一背壓閥。(壓力一 般調(diào)至5kgf/cm2左右,即0.5MPa)。
溢流閥型號
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R900510566 DBW30B2-5X/200-6AW120-60NZ4
R900528454 DBW30B2-5X/200-6AW220-50NZ4
R900502541 DBW30B2-5X/200-6AW220RNZ5
R900597199 DBW30B2-5X/200-6AW220RNZ5B
R900524010 DBW30B2-5X/200-6AW220RNZ5L
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R900910235 DBW30B2-5X/200-6EG24N9Z5L
R900707542 DBW30B2-5X/200-6EG60N9K4
R900970299 DBW30B2-5X/200-6EG96N9K4
R900907572 DBW30B2-5X/200-6EW110N9DAL
R900928523 DBW30B2-5X/200-6EW110N9K4
R900950700 DBW30B2-5X/200-6EW110N9K4/12=CSA
R901315953 DBW30B2-5X/200-6EW110N9K4V
R978913145 DBW30B2-5X/200-6EW110N9K4V/12
R900906440 DBW30B2-5X/200-6EW110N9Z5L
R900941855 DBW30B2-5X/200-6EW230N9K4
R900915682 DBW30B2-5X/200-6EW230N9Z4
R900947594 DBW30B2-5X/200-6SMG96N9K4/12
R900947398 DBW30B2-5X/200-6SMW110N9K4/12
R900953345 DBW30B2-5X/200P110-6EW230N9K4
R900721974 DBW30B2-5X/200P130U6EW230N9K4
R900722051 DBW30B2-5X/200P185-6EW230N9K4
R900722218 DBW30B2-5X/200P185U6EW230N9K4
R900548466 DBW30B2-5X/200S6AG24N9K4R12
R900576524 DBW30B2-5X/200S6AG24N9Z5LR12
R900533284 DBW30B2-5X/200S6AG24NK4R10
R900576693 DBW30B2-5X/200S6AG24NK4R10V
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R900599929 DBW30B2-5X/200S6AG24NZ4R10B
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R900905874 DBW30B2-5X/200S6AG24NZ4R12B
R900510440 DBW30B2-5X/200S6AG24NZ5L1R12
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R900560721 DBW30B2-5X/200S6AG24NZ5LR12
R900561766 DBW30B2-5X/200S6AG24NZ5LR12B
R900516075 DBW30B2-5X/200S6AW110-50N9K4R12
R979040604 DBW30B2-5X/200S6EG24N9K4
R900958708 DBW30B2-5X/200S6EG24N9K4R10
R901072523 DBW30B2-5X/200S6EG24N9K4R10V
R900917473 DBW30B2-5X/200S6EG24N9K4R12
R900916163 DBW30B2-5X/200S6EG24N9Z5LR12
R900926410 DBW30B2-5X/200S6EG24N9Z5LR12B
R900374 DBW30B2-5X/200S6EW110N9K4R12
R900965806 DBW30B2-5X/200S6EW230N9K4R12
R900549409 DBW30B2-5X/200S6SMG24N9Z5LB12
R900522850 DBW30B2-5X/200U6AG24N9Z5L
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R900598279 DBW30B2-5X/200U6AG24NZ5L
R900503521 DBW30B2-5X/200U6AG24NZ5L1
R900563122 DBW30B2-5X/200U6AW120-60NDAL
R900516382 DBW30B2-5X/200U6AW220-50NZ5L
R900975828 DBW30B2-5X/200U6EG24N9K4
R901264604 DBW30B2-5X/200U6EG24N9K4V
R900906263 DBW30B2-5X/200U6EG24N9Z5L
R900924046 DBW30B2-5X/200US6AG24NK4R12
R900569879 DBW30B2-5X/200US6AG24NZ4R15
R900565648 DBW30B2-5X/200US6AG24NZ5L2R12
R900590304 DBW30B2-5X/200US6AG24NZ5LR10
R900551114 DBW30B2-5X/200US6AG24NZ5LR12
R900519453 DBW30B2-5X/200US6AW110-60Z4R10
R901173566 DBW30B2-5X/200US6EG24N9K4R10
R901171939 DBW30B2-5X/200US6EG24NK4R12
R900971934 DBW30B2-5X/200US6EW110NK4R12
R900914496 DBW30B2-5X/200X6AG24NZ5LR12
R900966111 DBW30B2-5X/200X6EG24N9K4
R901352225 DBW30B2-5X/200X6EG24N9K4V/12
R900917472 DBW30B2-5X/200XS6EG24N9K4R12
R900520265 DBW30B2-5X/200XY6AG24NZ5L
R900708540 DBW30B2-5X/200XYS6EG24N9K4R12
R900518631 DBW30B2-5X/200Y6AG24NK4B
R900517374 DBW30B2-5X/200Y6AG24NZ4
R900502688 DBW30B2-5X/200Y6AG24NZ4B
R900500487 DBW30B2-5X/200Y6AG24NZ4R10
R900519034 DBW30B2-5X/200Y6AG24NZ4R10B
R900507472 DBW30B2-5X/200Y6AG24NZ5L1B
R900501293 DBW30B2-5X/200Y6AG24NZ5LB
R900522526 DBW30B2-5X/200Y6AG24NZ5LB
R900528268 DBW30B2-5X/200Y6AW110-50NZ5L
R900597200 DBW30B2-5X/200Y6AW110RNZ5L
R901412944 DBW30B2-5X/200Y6EG24N9K4V
R900913031 DBW30B2-5X/200Y6EG24N9Z4
R900949652 DBW30B2-5X/200Y6EG96N9K4
R900945181 DBW30B2-5X/200Y6EW110N9K4
R900577090 DBW30B2-5X/200YS6AG24NK4R12
R900577313 DBW30B2-5X/200YS6AG24NZ4R12B
R900505542 DBW30B2-5X/200YS6AG24NZ5L1R12B
R900520462 DBW30B2-5X/200YS6AG24NZ5LR12B
R900961712 DBW30B2-5X/200YS6EG24N9K4R12
R900959878 DBW30B2-5X/200YS6EG24N9K4R12B
R900553809 DBW30B2-5X/200YS6EG24N9Z4R12B
R900535004 DBW30B2-5X/200YU6AG24Z4
R900760138 DBW30B2-5X/200YU6EG24N9K4
R900551758 DBW30B2-5X/200YUS6AG24N9K4R12
R900903206 DBW30B2-5X/200YUS6AG24NZ4R12
R900900036 DBW30B2-5X/200YUS6AW110-60N9K4R12
R900900036 DBW30B2-5X/200YUS6AW110-60N9K4R12
R900917594 DBW30B2-5X/200YUS6EG24N9K4R12
R900917224 DBW30B2-5X/200YUS6EG24N9Z4R12B
R900546537 DBW30B2-5X/210-6AG24NZ4B
R900951007 DBW30B2-5X/210-6EG24N9Z5LVB
R900906778 DBW30B2-5X/210S6AG24NZ4R12B
R900948081 DBW30B2-5X/210S6EG24N9K4R12B
R900546538 DBW30B2-5X/220-6AG24N9Z5L1B
R900546539 DBW30B2-5X/220S6AG24NZ5LR12B
R900927583 DBW30B2-5X/230-6EG24N9K4B
R900935204 DBW30B2-5X/235-6EG24N9K4B
R900923716 DBW30B2-5X/240Y6EG24N9K4B
R900927760 DBW30B2-5X/250XS6EG24N9K4R12B
R900915157 DBW30B2-5X/280S6EG24N9Z4R12B
R900546540 DBW30B2-5X/280Y6AG24NZ5LR10B
R900546541 DBW30B2-5X/300-6AG24NZ5L1B
R900970017 DBW30B2-5X/310-6SMG24N9K4B
R900578998 DBW30B2-5X/310XS6AG24NZ4R12B
R900933070 DBW30B2-5X/310XS6SMG24N9K4B12B
R901282964 DBW30B2-5X/315-165-6EG24N9K4
R900952401 DBW30B2-5X/315-250-6EG110N9K4
R900928053 DBW30B2-5X/315-250-6EG24N9K4
R900740491 DBW30B2-5X/315-250XU6EG24N9K4
R900905226 DBW30B2-5X/315-270-6AG24NZ4
R900929487 DBW30B2-5X/315-280-6EG24N9K4
R900905225 DBW30B2-5X/315-290-6AG24NZ4
R900507233 DBW30B2-5X/315-6AG110NZ4
R900501160 DBW30B2-5X/315-6AG110NZ5L
R900507098 DBW30B2-5X/315-6AG125NZ5L
R900511548 DBW30B2-5X/315-6AG12NZ4
R900575316 DBW30B2-5X/315-6AG24N9K4SO160
R900548851 DBW30B2-5X/315-6AG24N9Z4
R900523082 DBW30B2-5X/315-6AG24N9Z5L
R900578575 DBW30B2-5X/315-6AG24N9Z5LSO160
R900529916 DBW30B2-5X/315-6AG24N9Z5L1B
R900514148 DBW30B2-5X/315-6AG24NDL
R900526394 DBW30B2-5X/315-6AG24NDLSO405
R900536695 DBW30B2-5X/315-6AG24NDZL
R900536695 DBW30B2-5X/315-6AG24NDZL
R900500304 DBW30B2-5X/315-6AG24NK4
R900512456 DBW30B2-5X/315-6AG24NK4SO31
R900594675 DBW30B2-5X/315-6AG24NZ4
R900501384 DBW30B2-5X/315-6AG24NZ4SO31
R900525382 DBW30B2-5X/315-6AG24NZ4SO578
R900536642 DBW30B2-5X/315-6AG24NZ4SO602
R900533014 DBW30B2-5X/315-6AG24NZ45
R900599093 DBW30B2-5X/315-6AG24NZ45V
R900562622 DBW30B2-5X/315-6AG24NZ45V/12
R900520222 DBW30B2-5X/315-6AG24NZ4B
R900534092 DBW30B2-5X/315-6AG24NZ4R12
R900588392 DBW30B2-5X/315-6AG24NZ4V
R900560522 DBW30B2-5X/315-6AG24NZ5
R900911009 DBW30B2-5X/315-6AG24NZ55LV/12
R900502148 DBW30B2-5X/315-6AG24NZ5B15
R900598754 DBW30B2-5X/315-6AG24NZ5L
R900594414 DBW30B2-5X/315-6AG24NZ5L
R900594440 DBW30B2-5X/315-6AG24NZ5L
R900510498 DBW30B2-5X/315-6AG24NZ5LSO31
R900595311 DBW30B2-5X/315-6AG24NZ5LSO31
R900501676 DBW30B2-5X/315-6AG24NZ5L1
R900507995 DBW30B2-5X/315-6AG24NZ5L1SO31
R900503402 DBW30B2-5X/315-6AG24NZ5L1B
R900523351 DBW30B2-5X/315-6AG24NZ5L1QBG24
R900525967 DBW30B2-5X/315-6AG24NZ5L1V
R900902262 DBW30B2-5X/315-6AG24NZ5L2
R900902262 DBW30B2-5X/315-6AG24NZ5L2
R900506211 DBW30B2-5X/315-6AG24NZ5LB
R900504342 DBW30B2-5X/315-6AG24NZ5LR10
R900550748 DBW30B2-5X/315-6AG24NZ5LR12
R900573399 DBW30B2-5X/315-6AG24NZ5LR12
R900546279 DBW30B2-5X/315-6AG24NZ5LV
R900521824 DBW30B2-5X/315-6AG24NZ5LV
R900902976 DBW30B2-5X/315-6AG24NZ5LV
R900533614 DBW30B2-5X/315-6AG24NZ5LVSO31
R900507528 DBW30B2-5X/315-6AG24Z4
R900517710 DBW30B2-5X/315-6AG24Z4QAG24
R900504247 DBW30B2-5X/315-6AG42NZ5L
R900500012 DBW30B2-5X/315-6AG48NDZ6L
R900500015 DBW30B2-5X/315-6AG48NDZ6LB
R900500021 DBW30B2-5X/315-6AG48NDZL
R900502713 DBW30B2-5X/315-6AG48NZ5L
R900510242 DBW30B2-5X/315-6AG48NZ5LSO31
R900901318 DBW30B2-5X/315-6AG48NZ5LV
R900512418 DBW30B2-5X/315-6AW110-50N9K4
R900523145 DBW30B2-5X/315-6AW110-50NK4V
R900523145 DBW30B2-5X/315-6AW110-50NK4V
R900597051 DBW30B2-5X/315-6AW110-50NZ4
R900563754 DBW30B2-5X/315-6AW110-50NZ4V
R900524 DBW30B2-5X/315-6AW110-50NZ5L
R900503895 DBW30B2-5X/315-6AW110-50NZ5LSO31
R900598056 DBW30B2-5X/315-6AW110-50NZ5LV
R900933677 DBW30B2-5X/315-6AW110-60N9K4MK
R900939841 DBW30B2-5X/315-6AW110-60N9K4MK
R900560802 DBW30B2-5X/315-6AW110-60NDL
R900598572 DBW30B2-5X/315-6AW110-60NZ4
R900596656 DBW30B2-5X/315-6AW110-60NZ5L
R900562559 DBW30B2-5X/315-6AW110RNZ5L
R900521898 DBW30B2-5X/315-6AW120-60N9Z4MK/12
R900509781 DBW30B2-5X/315-6AW120-60NDK25L
R900503046 DBW30B2-5X/315-6AW120-60NZ4
R900599815 DBW30B2-5X/315-6AW120-60NZ45SO31
R900549652 DBW30B2-5X/315-6AW120-60NZ45V/12
R900564925 DBW30B2-5X/315-6AW120-60NZ45V/12SO31
R900500646 DBW30B2-5X/315-6AW120-60NZ55LSO31
R900562161 DBW30B2-5X/315-6AW120-60NZ55L/12
R900529482 DBW30B2-5X/315-6AW120-60NZ55LV/12SO31
R900513682 DBW30B2-5X/315-6AW120-60NZ5L
R900533367 DBW30B2-5X/315-6AW127-50NZ4V
R900527020 DBW30B2-5X/315-6AW220-50NK4
R900597762 DBW30B2-5X/315-6AW220-50NZ4
R900597762 DBW30B2-5X/315-6AW220-50NZ4
R900553572 DBW30B2-5X/315-6AW220-50NZ4SO31
R900509714 DBW30B2-5X/315-6AW220-50NZ4VSO31
R900596507 DBW30B2-5X/315-6AW220-50NZ5L
R900501899 DBW30B2-5X/315-6AW220-50NZ5LV
R900501899 DBW30B2-5X/315-6AW220-50NZ5LV
R900500661 DBW30B2-5X/315-6AW220RNZ5
R900534458 DBW30B2-5X/315-6BG12N1Z4
R900571806 DBW30B2-5X/315-6BG12N1Z4
R900534572 DBW30B2-5X/315-6BG24NEX
R900568217 DBW30B2-5X/315-6BG24NZ5L3SO31
R900518921 DBW30B2-5X/315-6BG24NZ5LB
R900599452 DBW30B2-5X/315-6BG26N1Z4
R900517334 DBW30B2-5X/315-6BG26N1Z4SO449
R900536827 DBW30B2-5X/315-6BW220RNEX
R900536827 DBW30B2-5X/315-6BW220RNEX
R900516004 DBW30B2-5X/315-6CG24N9Z5L1
R901045756 DBW30B2-5X/315-6EG110N9K4
R900909638 DBW30B2-5X/315-6EG110N9Z5L
R900977117 DBW30B2-5X/315-6EG12N4K4
R900567569 DBW30B2-5X/315-6EG12N4Z4
R900977851 DBW30B2-5X/315-6EG12N9K4
R900247924 DBW30B2-5X/315-6EG12NK4
R900921393 DBW30B2-5X/315-6EG205N9K4
R900945554 DBW30B2-5X/315-6EG220N9K4
R900740198 DBW30B2-5X/315-6EG220N9K4V
R900905385 DBW30B2-5X/315-6EG24N2Z45/12
R900968142 DBW30B2-5X/315-6EG24N4K4
R901215163 DBW30B2-5X/315-6EG24N9DL
R900922311 DBW30B2-5X/315-6EG24N9K4
R900945 DBW30B2-5X/315-6EG24N9K4SO602
R900941920 DBW30B2-5X/315-6EG24N9K4/12
R978013910 DBW30B2-5X/315-6EG24N9K4=CSA
R900926881 DBW30B2-5X/315-6EG24N9K4B
R900935205 DBW30B2-5X/315-6EG24N9K4B
R901209576 DBW30B2-5X/315-6EG24N9K4B08
R900944849 DBW30B2-5X/315-6EG24N9K4V
R900947401 DBW30B2-5X/315-6EG24N9K4V/12
R900576083 DBW30B2-5X/315-6EG24N9Z4
R900907807 DBW30B2-5X/315-6EG24N9Z45
R900978585 DBW30B2-5X/315-6EG24NK4
R901208771 DBW30B2-5X/315-6EG26N4K4K
R900568552 DBW30B2-5X/315-6EG26N4Z4
R900912140 DBW30B2-5X/315-6EG26N9Z4
R901196388 DBW30B2-5X/315-6EG42N9K4
R900950153 DBW30B2-5X/315-6EG48N9DZ6L
R900952466 DBW30B2-5X/315-6EG48N9K4
R900977910 DBW30B2-5X/315-6EG60N9K4
R900911011 DBW30B2-5X/315-6EG60N9Z4
R900617089 DBW30B2-5X/315-6EG96N9K4
R900915217 DBW30B2-5X/315-6EW110N9K4
R901033726 DBW30B2-5X/315-6EW110N9K4/12
R900244626 DBW30B2-5X/315-6EW110N9K4=CSA
R901162441 DBW30B2-5X/315-6EW110N9K4B08
R901236547 DBW30B2-5X/315-6EW110N9K4B10
R900911655 DBW30B2-5X/315-6EW110N9K4V
R978913080 DBW30B2-5X/315-6EW110N9K4V/12
R900969902 DBW30B2-5X/315-6EW110N9K4V/12=CSA
R901314141 DBW30B2-5X/315-6EW110N9K4V=CSA
R900910899 DBW30B2-5X/315-6EW110N9Z4
R900915150 DBW30B2-5X/315-6EW110N9Z45V/12
R900910900 DBW30B2-5X/315-6EW110N9Z5LV
R900908480 DBW30B2-5X/315-6EW110NZ55L/12
R900949651 DBW30B2-5X/315-6EW127N9K4V
R900908661 DBW30B2-5X/315-6EW220N9Z4
R900908661 DBW30B2-5X/315-6EW220N9Z4
R900926947 DBW30B2-5X/315-6EW230N9K4
R900922238 DBW30B2-5X/315-6EW230N9K4B
R900927155 DBW30B2-5X/315-6EW230N9K4V
R900911411 DBW30B2-5X/315-6EW230N9Z4
R900914498 DBW30B2-5X/315-6EW230N9Z5L
R900597130 DBW30B2-5X/315-6SLG24NZ4
R900539938 DBW30B2-5X/315-6SLG24NZ5L
R900508233 DBW30B2-5X/315-6SLW110RNZ5LSO31
R900921505 DBW30B2-5X/315-6SMG24N9K4
R900546650 DBW30B2-5X/315-6SMG24N9Z4
R900951432 DBW30B2-5X/315-6SMG48N9K4
R900902906 DBW30B2-5X/315-6SMG48N9Z5L/12
先導型溢流閥的導閥部分是一個易振部位所示。在高壓情況下溢流時,導閥的軸向開口很小,僅0.003~0.006厘米。過流面積很小,流速很高,可達200米/秒,易引起壓力分布不均勻,使錐閥徑向力不平衡而產(chǎn)生振動。另外錐閥和錐閥座加工時產(chǎn)生的橢圓度、導閥口的臟物粘住及調(diào)壓彈簧變形等,也會引起錐閥的振動。所以一般認為導閥是發(fā)生噪聲的振源部位。由于有彈性元件(彈簧)和運動質(zhì)量(錐閥)的存在,構(gòu)成了一個產(chǎn)生振蕩的條件,而導閥前腔又起了一個共振腔的作用,所以錐閥發(fā)生振動后易引起整個閥的共振而發(fā)出噪聲,發(fā)生噪聲時一般多伴隨有劇烈的壓力跳動。
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