REXROTH流量閥2FRM6B36-2X/0.6QRV-IN001

時間：2025-01-15作者：上海韋米機(jī)電設(shè)備有限公司瀏覽：80

樂REXROTH流量閥2FRM6B36-2X/0.6QRV-IN001由上海韋米機(jī)電設(shè)備有限公司專業(yè)提供

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樂REXROTH流量閥2FRM6B36-2X/0.6QRV-IN001

2FRM 型調(diào)速閥

1.結(jié)構(gòu)和工作原理

2FRM型調(diào)速閥是兩通的流量控制閥。此閥是由減壓閥和節(jié)流閥串聯(lián)構(gòu)成的，油流進(jìn)入調(diào)速后，先以過減壓閥減壓，再由節(jié)流閥節(jié)流。由于減壓閥對節(jié)流閥進(jìn)行了壓力補(bǔ)償，所以調(diào)速閥的流量不受負(fù)載變化的影響，保持穩(wěn)定，同時節(jié)流窗口設(shè)計成薄刃狀，流量受溫度變化很小。調(diào)速閥與單向閥并聯(lián)時，油流能反向回流。

Z4S型整流板裝在調(diào)速閥下，可以穩(wěn)定通過調(diào)速閥兩個方向的流量。

2.調(diào)速閥的常見故障及排除

流量調(diào)節(jié)失靈

這是指調(diào)整節(jié)流調(diào)節(jié)部分，出油腔流量不發(fā)生變化，其主要原因是閥芯徑向減壓閥芯或節(jié)流閥芯在全閉位置時，徑向卡住會使出油腔沒有流量，在全開位置(或節(jié)流口調(diào)整好)時，徑向卡住會使調(diào)整節(jié)流調(diào)節(jié)部分出油腔流量不發(fā)生變化。

另外，當(dāng)節(jié)流調(diào)節(jié)部分發(fā)生故障時，會使調(diào)節(jié)螺桿不能軸向移動，使出油腔流量也不發(fā)生變化。發(fā)生閥芯卡住或節(jié)流調(diào)節(jié)部分故障時，應(yīng)進(jìn)行清洗和修復(fù)。

(二)流量不穩(wěn)定

減壓節(jié)流型調(diào)速閥當(dāng)節(jié)流口調(diào)整好鎖緊后，有時會出現(xiàn)流量不穩(wěn)定現(xiàn)象，特別在小穩(wěn)定流量時易發(fā)生。其主要原因是鎖緊裝置松動，節(jié)流口部分堵塞，油溫升高，進(jìn)、出油腔小壓差過低和進(jìn)、出油腔接反等。

油流反向通過QF型調(diào)速閥時，減壓閥對節(jié)流閥不起壓力補(bǔ)償作用，使調(diào)速閥變成節(jié)流閥。故當(dāng)進(jìn)、出油腔油液壓力發(fā)生變化時，流經(jīng)的流量就會發(fā)生變化，從而引起流量不穩(wěn)定。

因此在使用時要注意進(jìn)、出油腔的位置，避免接反。

(三)內(nèi)泄漏量加大

減壓節(jié)流型調(diào)速閥節(jié)流口關(guān)閉時，是靠間隙密封，因此不可避免有一定的泄漏量，故它不能作為截止閥用。當(dāng)密封面(減壓閥芯、節(jié)流閥芯和單向閥芯密封面等)磨損過大后，會引起內(nèi)泄漏量增加，使不穩(wěn)定，特別會影響到小穩(wěn)定流量。卡住和節(jié)流調(diào)節(jié)部分發(fā)生故障等。




流量控制閥

功用:通過改變閥口過流面積來調(diào)節(jié)輸出流量，從而控制執(zhí)行元件的運動速度。

分類:節(jié)流閥、調(diào)速閥、溫度補(bǔ)償調(diào)速閥、分流集流閥。

常用節(jié)流口結(jié)構(gòu)有錐形、三角槽形、矩形、三角形等。由節(jié)流方程知，當(dāng)壓力差.定時，改變開口面積即改變液阻就可改變流量。

節(jié)流閥實質(zhì)相當(dāng)于-一個可變節(jié)流口，借助控制機(jī)構(gòu)使閥芯相對于閥體孔運動改變閥口的過流面積。

結(jié)構(gòu)原理

主要零件有閥芯、閥體和螺母。閥體上右邊是進(jìn)油口，左邊是出油口。閥芯一端開有三角尖槽，另-端加工有螺紋，旋轉(zhuǎn)閥芯即可軸向移動改變閥口過流面積。為平衡液壓徑向力，三角槽須對稱布置。

調(diào)速閥定差減壓閥與節(jié)流閥串聯(lián)而成，用來調(diào)節(jié)通過的自動補(bǔ)

償負(fù)載變化的影響。

樂REXROTH流量控制閥

樂REXROTH雙向流量控制閥2FRM6A

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樂REXROTH二通流量控制閥2FRM6B

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樂REXROTH雙向流量控制閥2FRM6SB

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樂REXROTH二通流量控制閥2FRM

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R900212686 2FRM10-3X=10L

R901247928 2FRM10-3X=50LB

R900771371 2FRM10-7-3X/16L

R900745525 2FRM10-7-3X/25LB

R901196197 2FRM10-7-3X/35LB

R900744247 2FRM10-7-3X/50L

R900745526 2FRM10-7-3X/50LB

R900770289 2FRM10-7-3X/50LV

R900424905 2FRM16-3X/100L

R900466056 2FRM16-3X/100LSO100

R900462063 2FRM16-3X/100LSO130

R900462671 2FRM16-3X/100LSO132

R900586538 2FRM16-3X/100LSO182

R900443804 2FRM16-3X/100LSO280

R900488082 2FRM16-3X/100LSO50

R900420287 2FRM16-3X/100LB

R900371837 2FRM16-3X/100LBSO122

R900478768 2FRM16-3X/100LBSO130

R901250980 2FRM16-3X/100LBSO263

R900337958 2FRM16-3X/100LBSO466

R900411378 2FRM16-3X/100LBJ

R900447368 2FRM16-3X/100LBJSO218

R900471183 2FRM16-3X/100LBV

R900433570 2FRM16-3X/100LJ

R900344432 2FRM16-3X/100LJSO174

R900429596 2FRM16-3X/100LV

R900456011 2FRM16-3X/100

R900447971 2FRM16-3X/125L

R900415315 2FRM16-3X/125LB

R900424906 2FRM16-3X/160L

R900465439 2FRM16-3X/160LSO130

R900391601 2FRM16-3X/160LSO70

R900574724 2FRM16-3X/160L=LB

R900424902 2FRM16-3X/160LB

R900473620 2FRM16-3X/160LBSO122

R900595383 2FRM16-3X/160LBSO130

R900525060 2FRM16-3X/160LBSO253

R900416601 2FRM16-3X/160LBJ

R900534016 2FRM16-3X/160LBJV

R900424034 2FRM16-3X/160LBV

R900463601 2FRM16-3X/160LJ

R900342887 2FRM16-3X/160LJSO198

R900427777 2FRM16-3X/160LV

R900571979 2FRM16-3X/160LVSO208

R900424907 2FRM16-3X/25L

R978011611 2FRM16-3X/25LBV

R900443812 2FRM16-3X/40L

R900499578 2FRM16-3X/40LSO100

R900485839 2FRM16-3X/40LB

R900423271 2FRM16-3X/60L

R900473263 2FRM16-3X/60LSO100

R900469562 2FRM16-3X/60LSO130

R900583939 2FRM16-3X/60LSO70

R900424903 2FRM16-3X/60LB

R900470226 2FRM16-3X/60LBSO130

R900411046 2FRM16-3X/60LBJ

R900335911 2FRM16-3X/60LBJSO168

R900428280 2FRM16-3X/60LBV

R900498326 2FRM16-3X/60LJ

R900335894 2FRM16-3X/60LJSO198

R900424904 2FRM16-3X/60LV

R900437666 2FRM16-3X/60

R900463262 2FRM16-3X/80L

R900468913 2FRM16-3X/80LB

R900361497 2FRM16-3X/80LBSO169

R900414597 2FRM16-3X/80LJ

R900993373 2FRM16-3X=100L=PL

R900081196 2FRM16-3X=100LB=PL

R901411199 2FRM16-3X=125LB

R900072937 2FRM16-3X=160L=PL

R901266648 2FRM16-3X=160LBV

R900080634 2FRM16-3X=60LB=PL

R900755435 2FRM16-7-3X/100L

R900770290 2FRM16-7-3X/100LV

R900744248 2FRM16-7-3X/160L

R900779565 2FRM16-7-3X/160LB

R978878880 2FRM10-3X/10LSO43A-1107

R978877468 2FRM10-3X/10LBVSO43A-1107

R978869471 2FRM10-3X/16LSO43A-1107

R978869224 2FRM10-3X/25LSO43A-1107




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上海韋米機(jī)電設(shè)備有限公司專注于液壓泵閥,進(jìn)口氣動元件,電子電控類進(jìn)口件等, 歡迎致電 15800947702

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