力士樂單向閥M-SR15KE05-1X/
產(chǎn)品型號(hào): |
R900345372 |
品 牌: |
力士樂 |
|
所 在 地: |
上海浦東新區(qū) |
更新日期: |
2025-08-29 |
| 品牌:力士樂 | | 型號(hào):R900345372 | | 加工定制:否 | |
| 適用介質(zhì):油品 | | 壓力環(huán)境:常壓 | | 標(biāo)準(zhǔn):德標(biāo) | |
| 材質(zhì):鑄鐵 | | 連接形式:法蘭 | | 外形:小型 | |
| 流動(dòng)方向:?jiǎn)蜗? | | 零部件及配件:閥體 | | 驅(qū)動(dòng)方式:液壓 | |
| 工作溫度:常溫 | | 類型:直動(dòng)式 | | 形態(tài):柱塞式 | |
力士樂單向閥M-SR15KE05-1X/ R900345372,德國REXROTH單向閥,插裝式單向閥,購買進(jìn)口液壓、氣動(dòng)、自動(dòng)化控制工業(yè)配件,
認(rèn)準(zhǔn)“上海韋米機(jī)電設(shè)備有限公司”,7年老店,保證產(chǎn)品原廠原裝,價(jià)格優(yōu)惠,售后無憂,歡迎新老客戶咨詢采購!
插裝閥在液壓系統(tǒng)中的應(yīng)用.
插裝閥具有內(nèi)阻小,結(jié)構(gòu)簡(jiǎn)單,工作可靠,標(biāo)準(zhǔn)化程度高,對(duì)于大流量、高壓力、較復(fù)雜的液壓系統(tǒng)可以顯著的減小尺寸和重量等特點(diǎn);而實(shí)心胎硫化機(jī)組液壓系統(tǒng)工作時(shí)需要大流量、高壓力油,因而,此系統(tǒng)可以應(yīng)用插裝閥滿足要求。
一、
插裝閥的工作原理及特點(diǎn)
插裝閥是另一類液壓控制閥的統(tǒng)稱。其基本核心元件是一種液控型、單控制口的裝于油路主級(jí)中的兩通液阻單元(故又稱二通插裝閥)。將一一個(gè)或若干個(gè)插入元件進(jìn)行不同的組合,并配以相應(yīng)的先導(dǎo)控制級(jí),可以組成插裝閥的各種控制功能單元。比如方向控制功能單元、壓力控制單元、流量控制單元、復(fù)合控制功能單元。
插裝閥具有以下特點(diǎn):內(nèi)阻小,適宜大流量工作,閥口多數(shù)采用錐面密封,因而泄漏小,對(duì)于乳化液等地粘度的工作介質(zhì)也適宜,結(jié)構(gòu)簡(jiǎn)單、工作可靠、標(biāo)準(zhǔn)化程度高;對(duì)于大流量、高壓力、較復(fù)雜的液壓系統(tǒng)可以顯著的減小尺寸和重量。
其結(jié)構(gòu):先導(dǎo)閥,控制蓋板,插裝件。
它是由插入元件、控制蓋板、通道塊三大部分組成。插入元件有閥芯、閥套、彈簧和密封件組成;控制蓋板上根據(jù)插裝閥的不同控制功能,安裝有相應(yīng)的先導(dǎo)控制級(jí)元件;通道塊既是嵌入插入元件及安裝控制蓋板的基礎(chǔ)閥體,又是主油路和控制油路的連通體。其中A、B為主油路通口,C為控制油路通口。A、B、C油口的壓力和作用面積分別為PA、PB、PC和A1、A2、A3,A3=A1+A2, Fs為彈簧作用力。
二通插裝閥通過不同的蓋板和各種先導(dǎo)閥組合,便可構(gòu)成方向控制閥、壓力控制閥和流量控制閥。
1、插裝閥構(gòu)成壓力控制閥
根據(jù)插裝閥的工作原理當(dāng)PAA1+PBA2 >PCA3+FS時(shí),閥芯開啟,油路A、B接通。插裝閥C14,當(dāng)電磁閥得電時(shí),插裝閥C14的C口直接通油箱,其C口壓力為零。由此可知油路A、B接通,當(dāng)A口的壓力大于彈簧力的時(shí)候,系統(tǒng)壓力油回油箱,所以此插裝閥起溢流閥的作用,控制油缸徑油口壓力。
2、插裝閥構(gòu)成方向控制閥
由液壓動(dòng)作程序表可知,同時(shí)得電,來控制主油缸上行運(yùn)動(dòng)。當(dāng)兩者同時(shí)得電時(shí)插裝閥C11、C13的C口通油箱PA>FS時(shí),A、B口直接相通,油液可從A流向B口;當(dāng)只有一個(gè)電磁閥得電時(shí),主油缸下行運(yùn)動(dòng)。其中C13的PA
3、插裝閥構(gòu)成流量控制閥
在閥的頂蓋上有閥芯升高限位裝置通過調(diào)節(jié)限位裝置的位置,便可調(diào)節(jié)閥口通流截面的大小,從而調(diào)節(jié)了流量。通過調(diào)節(jié)流量,可調(diào)節(jié)主油缸的下行速度。此插裝閥作節(jié)流閥。
三、
插裝閥在液壓系統(tǒng)的簡(jiǎn)單應(yīng)用,通過更為復(fù)雜的組合,可以實(shí)現(xiàn)更多的液壓閥的功能。通過組合,插裝閥可作為壓力控制閥(順序閥、減壓閥)、流量控制閥(單向節(jié)流閥、節(jié)流閥)、方向控制閥(調(diào)速閥、液控單向閥、兩位兩通換向閥等)以及復(fù)合閥。
1、移架速度低已成為制約綜采產(chǎn)量的-一個(gè)重要因素。為加快移架速度,在支架的液壓系統(tǒng)中采用插裝閥。插裝式方向閥也是采用電磁閥作為先導(dǎo)閥,對(duì)主閥(錐閥進(jìn)行先導(dǎo)控制,控制原理等同于電液操縱閥,但插裝閥的通流能力(可達(dá)10000L/min以上大、響應(yīng)快、工作可靠等突出優(yōu)點(diǎn),是管式閥無可比擬的,使其更適于在支架的電液控制系統(tǒng)中使用,而無需研制采用電磁先導(dǎo)控制的專用大流量主閥,既能滿足使用要求,又可改善工作性能,提高通用化程度,從根本上解決由管式閥固有缺陷所產(chǎn)生的問題。
此外,采用插裝閥設(shè)計(jì)支架液壓系統(tǒng)還具有下列優(yōu)勢(shì):
(1插裝閥的優(yōu)點(diǎn)十分適合支架的工況。液壓支架的工況特點(diǎn)是:介質(zhì)粘度低、工作壓力高、流量大、工作環(huán)境惡劣、介質(zhì)污染嚴(yán)重。插裝閥的長(zhǎng)處能得到充分發(fā)揮。
(2符合流體傳動(dòng)技術(shù)的發(fā)展趨勢(shì)。為降低使用成本,消除環(huán)境污染,流體傳動(dòng)技術(shù)正向著使用純水介質(zhì)方向發(fā)展。液壓支架是用同純水性質(zhì)比較接近的高水基乳化液作為工作介質(zhì),很有可能成為該技術(shù)發(fā)展成果的受益者,正趨向于采用純水工作介質(zhì)。由于水的粘度低,要求閥的密封性好,以提高系統(tǒng)的效率。插裝閥采用錐面密封,具有優(yōu)良的密封性能,更適于在純水介質(zhì)中工作,應(yīng)作為純水支架的首選閥種。
(3抗污染能力強(qiáng)、工作可靠。支架工作在采煤面,介質(zhì)污染程度高,使閥芯磨損嚴(yán)重,縮短了閥的使用壽命,由此也導(dǎo)致了支架的各種故障,使工作可靠性降低,增加了維護(hù)時(shí)間,降低了工作面的生產(chǎn)率。插裝閥的閥芯和閥套間無嚴(yán)格的配合要求,磨損輕,不易堵塞,也不會(huì)產(chǎn)生液壓卡緊現(xiàn)象,在介質(zhì)較臟時(shí)仍能保證支架液壓系統(tǒng)正常、可靠地工作。
(4滿足某些特殊工況的需要。如用于周期來壓強(qiáng)烈的堅(jiān)硬且難以冒落頂板的支撐式支架,在老頂突然來壓時(shí),立柱下腔控制閥中的安全閥,要通過很大的瞬時(shí)流量,普通安全閥的通流能力遠(yuǎn)不能滿足通流要求,因而專門設(shè)計(jì)了充氣式大流量安全閥,來適應(yīng)這種工況。但該種閥的結(jié)構(gòu)復(fù)雜,制造難度大,裝配要求高,工作可靠性差,很難滿足使用要求。而且,立柱下腔還要裝設(shè)普通安全閥來適應(yīng)正常工況的需要,這無疑會(huì)增加元件數(shù)量和制造成本。而采用插裝式溢流閥,則能很容易解決這一難題,又會(huì)使系統(tǒng)簡(jiǎn)化。
力士樂單向閥M-SR15KE05-1X/ R900345372
德國力士樂REXROTH單向閥訂貨號(hào)和型號(hào):
力士樂REXROTH插裝式單向閥M-SR 6...30
R900435539 M-SR10KD50-1X/
R900381073 M-SR10KD02-1X/
R900301891 M-SR10KD05-1X/
R900440016 M-SR10KD05-1X/B12
R900301898 M-SR10KD15-1X/
R900301905 M-SR10KD30-1X/
R900365223 M-SR10KD50-1X/
R900356291 M-SR10KE00-1X/
R900484616 M-SR10KE00-1X/V
R901414189 M-SR10KE01-1X/
R900345745 M-SR10KE02-1X/
R900374787 M-SR10KE02-1X/V
R900344549 M-SR10KE05-1X/
R900348632 M-SR10KE05-1X/V
R901319215 M-SR10KE05-1X=
R901339055 M-SR10KE05-1X=V
R900346857 M-SR10KE15-1X/
R900422425 M-SR10KE15-1X/V
R900962882 M-SR10KE15-1X/V
R900346936 M-SR10KE30-1X/
R900382015 M-SR10KE30-1X/V
R900361982 M-SR10KE50-1X/
R900346343 M-SR10KE50-1X/V
R900359836 M-SR15KD00-1X/
R900365217 M-SR15KD02-1X/
R900365216 M-SR15KD02-1X/
R900301892 M-SR15KD05-1X/
R900362864 M-SR15KD05-1X/SO56
R900384870 M-SR15KD05-1X/SO72
R900301899 M-SR15KD15-1X/
R900301906 M-SR15KD30-1X/
R900365224 M-SR15KD50-1X/
R900573554 M-SR15KD50-1X/B08
R900360254 M-SR15KE00-1X/
R900405182 M-SR15KE00-1X/V
R901425705 M-SR15KE01-1X/
R900348943 M-SR15KE02-1X/
R900390429 M-SR15KE02-1X/V
R901351241 M-SR15KE02-1X=
R900345372 M-SR15KE05-1X/
R900518872 M-SR15KE05-1X/MK
R900350794 M-SR15KE05-1X/V
R901341380 M-SR15KE05-1X=
R900346858 M-SR15KE15-1X/
R900409567 M-SR15KE15-1X/SO8
R900387662 M-SR15KE15-1X/V
R900346082 M-SR15KE30-1X/
R900382309 M-SR15KE30-1X/V
R901348955 M-SR15KE30-1X=
R900348818 M-SR15KE50-1X/
R900361867 M-SR15KE50-1X/V
R900365529 M-SR20KD10-1X/
R900365218 M-SR20KD02-1X/
R900301893 M-SR20KD05-1X/
R900301900 M-SR20KD15-1X/
R900301907 M-SR20KD30-1X/
R900365225 M-SR20KD50-1X/
R900373516 M-SR20KE50-1X/SO1
R900350936 M-SR20KE00-1X/
R900382674 M-SR20KE00-1X/V
R901432713 M-SR20KE01-1X/
R900345744 M-SR20KE02-1X/
R900377614 M-SR20KE02-1X/V
R900340979 M-SR20KE05-1X/
R900392631 M-SR20KE05-1X/MT
R900468994 M-SR20KE05-1X/SO10
R900350795 M-SR20KE05-1X/V
R900346859 M-SR20KE15-1X/
R900348667 M-SR20KE15-1X/V
R900346638 M-SR20KE30-1X/
R900420865 M-SR20KE30-1X/V
R900348318 M-SR20KE50-1X/
R900430183 M-SR20KE50-1X/V
R900580084 M-SR20KE50-1X/VSO9
R900365219 M-SR25KD02-1X/
R900301894 M-SR25KD05-1X/
R900403942 M-SR25KD05-1X/B10
R900301901 M-SR25KD15-1X/
R900301908 M-SR25KD30-1X/
R900365226 M-SR25KD50-1X/
R900484361 M-SR25KD50-1X/B10
R900361983 M-SR25KE00-1X/
R900400003 M-SR25KE00-1X/V
R901432712 M-SR25KE01-1X/
R900357739 M-SR25KE02-1X/
R900593255 M-SR25KE02-1X/V
R900344778 M-SR25KE05-1X/
R900357445 M-SR25KE05-1X/V
R901324297 M-SR25KE05-1X=
R900348453 M-SR25KE15-1X/
R901062482 M-SR25KE15-1X/SO27
R900500220 M-SR25KE15-1X/V
R900346391 M-SR25KE30-1X/
R900385859 M-SR25KE30-1X/V
R900351943 M-SR25KE50-1X/
R900356765 M-SR25KE50-1X/V
R900422190 M-SR30KD50-1X/
R901192402 M-SR30KD00-1X/
R900365220 M-SR30KD02-1X/
R900301895 M-SR30KD05-1X/
R900514077 M-SR30KD05-1X/B05
R901263853 M-SR30KD05-1X=
R900301902 M-SR30KD15-1X/
R900322482 M-SR30KD15-1X/SO4
R900301909 M-SR30KD30-1X/
R900365227 M-SR30KD50-1X/
R900352608 M-SR30KE00-1X/
R900501576 M-SR30KE00-1X/V
R901432601 M-SR30KE01-1X/
R900345743 M-SR30KE02-1X/
R900356970 M-SR30KE02-1X/V
R900344919 M-SR30KE05-1X/
R900472648 M-SR30KE05-1X/SO281
R900350797 M-SR30KE05-1X/V
R901324296 M-SR30KE05-1X=
R901432895 M-SR30KE120-1X/
R901335698 M-SR30KE120-1X/SO28
R900348666 M-SR30KE15-1X/
R901062486 M-SR30KE15-1X/SO27
R900379888 M-SR30KE15-1X/V
R901347873 M-SR30KE15-1X=
R900345961 M-SR30KE30-1X/
R900516562 M-SR30KE30-1X/MK
R900356969 M-SR30KE30-1X/V
R900349973 M-SR30KE50-1X/
R900350796 M-SR30KE50-1X/V
R901338114 M-SR30KE60-1X/MT
R900365221 M-SR6KD50-1X/
R900365214 M-SR6KD02-1X/
R900301889 M-SR6KD05-1X/
R900301896 M-SR6KD15-1X/
R900301903 M-SR6KD30-1X/
R900437261 M-SR6KD50-1X/
R900392934 M-SR8KD05-1X/SO7
R900387538 M-SR8KD30-1X/
R900365222 M-SR8KD50-1X/
R900365215 M-SR8KD02-1X/
R900301890 M-SR8KD05-1X/
R900582721 M-SR8KD05-1X/B06
R900923840 M-SR8KD05-1X/B07
R900323467 M-SR8KD05-1X/B08
R900465956 M-SR8KD05-1X/B10
R900484830 M-SR8KD05-1X/B12
R900512017 M-SR8KD05-1X/B14
R900395968 M-SR8KD05-1X/B15
R900301897 M-SR8KD15-1X/
R900301904 M-SR8KD30-1X/
R900361981 M-SR8KE00-1X/
R900371497 M-SR8KE00-1X/V
R901425717 M-SR8KE01-1X/
R900357438 M-SR8KE02-1X/
R900361251 M-SR8KE02-1X/V
R901281004 M-SR8KE02-1X=
R901281718 M-SR8KE02-1X=V
R900346083 M-SR8KE05-1X/
R900357718 M-SR8KE05-1X/V
R900477349 M-SR8KE05-1X/VSO11
R901280323 M-SR8KE05-1X=
R900348143 M-SR8KE15-1X/
R900397443 M-SR8KE15-1X/V
R901349180 M-SR8KE15-1X=
R900348329 M-SR8KE30-1X/
R900483387 M-SR8KE30-1X/V
R901324291 M-SR8KE30-1X=
R900356258 M-SR8KE50-1X/
R900430077 M-SR8KE50-1X/V
R978917682 M-SR10KE05-1X/SO43A-1703
R978917686 M-SR10KE05-1X/VSO43A-1703
R978917683 M-SR10KE15-1X/SO43A-1703
R978917687 M-SR10KE15-1X/VSO43A-1703
R978917684 M-SR10KE30-1X/SO43A-1703
R978917688 M-SR10KE30-1X/VSO43A-1703
R978917685 M-SR10KE50-1X/SO43A-1703
R978917689 M-SR10KE50-1X/VSO43A-1703
R978913656 M-SR15KE05-1X/SO43A-1193
R978917690 M-SR15KE05-1X/SO43A-1703
R978917694 M-SR15KE05-1X/VSO43A-1703
R978917691 M-SR15KE15-1X/SO43-1703
R978917695 M-SR15KE15-1X/VSO43A-1703
R978917692 M-SR15KE30-1X/SO43A-1703
R978917696 M-SR15KE30-1X/VSO43A-1703
R978917693 M-SR15KE50-1X/SO43A-1703
R978917697 M-SR15KE50-1X/VSO43A-1703
R978870139 M-SR20KE05-1X/SO43A-1132
R978917698 M-SR20KE05-1X/SO43A-1703
R978917702 M-SR20KE05-1X/VSO43A-1703
R978917699 M-SR20KE15-1X/SO43A-1703
R978917703 M-SR20KE15-1X/VSO43A-1703
R978917700 M-SR20KE30-1X/SO43A-1703
R978917704 M-SR20KE30-1X/VSO43A-1703
R978917701 M-SR20KE50-1X/SO43A-1703
R978917705 M-SR20KE50-1X/VSO43A-1703
R978005975 M-SR25KE00-1X/SO43A-1703
R978917706 M-SR25KE05-1X/SO43A-1703
R978917710 M-SR25KE05-1X/VSO43A-1703
R978917707 M-SR25KE15-1X/SO43A-1703
R978917711 M-SR25KE15-1X/VSO43A-1703
R978917708 M-SR25KE30-1X/SO43A-1703
R978917712 M-SR25KE30-1X/VSO43A-1703
R978917709 M-SR25KE50-1X/SO43A-1703
R978917713 M-SR25KE50-1X/VSO43A-1703
R978917714 M-SR30KE05-1X/SO43A-1703
R978917718 M-SR30KE05-1X/VSO43A-1703
R978917715 M-SR30KE15-1X/SO43A-1703
R978917719 M-SR30KE15-1X/VSO43A-1703
R978917716 M-SR30KE30-1X/SO43A-1703
R978917720 M-SR30KE30-1X/VSO43A-1703
R978917717 M-SR30KE50-1X/SO43A-1703
R978917721 M-SR30KE50-1X/VSO43A-1703
R987116692 M-SR8KD02-1X/V
R978892073 M-SR8KE05-1X/SO43A-1318
R978917674 M-SR8KE05-1X/SO43A-1703
R978917678 M-SR8KE05-1X/VSO43A-1703
R978917675 M-SR8KE15-1X/SO43A-1703
R978917679 M-SR8KE15-1X/VSO43A-1703
R978917676 M-SR8KE30-1X/SO43A-1703
R978917680 M-SR8KE30-1X/VSO43A-1703
R978917677 M-SR8KE50-1X/SO43A-1703
R978917677 M-SR8KE50-1X/SO43A-1703
R978917681 M-SR8KE50-1X/VSO43A-1703
力士樂REXROTH止回閥安裝裝置M-SR 52...150
R900306403 M-SR102KD00-1X/
R900306441 M-SR102KD00-1X/V
R900306409 M-SR102KD05-1X/
R900306447 M-SR102KD05-1X/V
R900306415 M-SR102KD15-1X/
R900306453 M-SR102KD15-1X/V
R900700382 M-SR102KD30-1X/
R901131741 M-SR102KD30-1X/V
R900381566 M-SR102KE05-1X/
R900306422 M-SR102KE00-1X/
R900306460 M-SR102KE00-1X/V
R900306428 M-SR102KE05-1X/
R900306466 M-SR102KE05-1X/V
R900306434 M-SR102KE15-1X/
R900306472 M-SR102KE15-1X/V
R901204285 M-SR102KE30-1X
R900306404 M-SR125KD00-1X/
R900306442 M-SR125KD00-1X/V
R900306410 M-SR125KD05-1X/
R900306448 M-SR125KD05-1X/V
R901078689 M-SR125KD30-1X/SO31
R900306423 M-SR125KE00-1X/
R900306461 M-SR125KE00-1X/V
R900306429 M-SR125KE05-1X/
R900306467 M-SR125KE05-1X/V
R900306405 M-SR150KD00-1X/
R900306443 M-SR150KD00-1X/V
R900306411 M-SR150KD05-1X/
R900306449 M-SR150KD05-1X/V
R900306424 M-SR150KE00-1X/
R900306462 M-SR150KE00-1X/V
R900306430 M-SR150KE05-1X/
R900306468 M-SR150KE05-1X/V
R900306400 M-SR52KD00-1X/
R900306438 M-SR52KD00-1X/V
R900306406 M-SR52KD05-1X/
R900306444 M-SR52KD05-1X/V
R900306412 M-SR52KD15-1X/
R900306450 M-SR52KD15-1X/V
R900306416 M-SR52KD30-1X/
R900306454 M-SR52KD30-1X/V
R900382324 M-SR52KE05-1X/
R900381918 M-SR52KE15-1X/
R900306746 M-SR52KE00-1X/
R900306747 M-SR52KE00-1X/V
R900386684 M-SR52KE02-1X/
R901088957 M-SR52KE02-1X/V
R900306740 M-SR52KE05-1X/
R901064071 M-SR52KE05-1X/SO27
R900306743 M-SR52KE05-1X/V
R900306741 M-SR52KE15-1X/
R900306744 M-SR52KE15-1X/V
R900306742 M-SR52KE30-1X/
R900306745 M-SR52KE30-1X/V
R900306401 M-SR62KD00-1X/
R900306439 M-SR62KD00-1X/V
R900306407 M-SR62KD05-1X/
R900306445 M-SR62KD05-1X/V
R900306413 M-SR62KD15-1X/
R900306451 M-SR62KD15-1X/V
R900306417 M-SR62KD30-1X/
R900306455 M-SR62KD30-1X/V
R900381565 M-SR62KE00-1X/
R900381766 M-SR62KE05-1X/
R900306420 M-SR62KE00-1X/
R900306458 M-SR62KE00-1X/V
R900386685 M-SR62KE02-1X/
R900306426 M-SR62KE05-1X/
R900306464 M-SR62KE05-1X/V
R900306432 M-SR62KE15-1X/
R900306470 M-SR62KE15-1X/V
R900306436 M-SR62KE30-1X/
R900306474 M-SR62KE30-1X/V
R900306402 M-SR82KD00-1X/
R900306440 M-SR82KD00-1X/V
R900306408 M-SR82KD05-1X/
R900306446 M-SR82KD05-1X/V
R900306414 M-SR82KD15-1X/
R900306452 M-SR82KD15-1X/V
R900306418 M-SR82KD30-1X/
R900306456 M-SR82KD30-1X/V
R900381713 M-SR82KE00-1X/
R900306421 M-SR82KE00-1X/
R900306459 M-SR82KE00-1X/V
R900306427 M-SR82KE05-1X/
R900361690 M-SR82KE05-1X/SO5
R900306465 M-SR82KE05-1X/V
R900306433 M-SR82KE15-1X/
R900306471 M-SR82KE15-1X/V
R900306437 M-SR82KE30-1X/
R900306475 M-SR82KE30-1X/V
力士樂REXROTH疊加式液控單向閥Z2S 6
R987163885 Z2S6-1-6XSTAMPEDFV2225050
R900347495 Z2S6-1-6X/
R901129841 Z2S6-1-6X//60
R900727969 Z2S6-1-6X//62
R901107049 Z2S6-1-6X//62
R901052079 Z2S6-1-6X/=TE
R900376034 Z2S6-1-6X/J
R901426713 Z2S6-1-6X/J3
R901259432 Z2S6-1-6X/J50
R900508098 Z2S6-1-6X/JV
R900442783 Z2S6-1-6X/MIL15
R901402145 Z2S6-1-6X/SO150
R900347504 Z2S6-1-6X/V
R900372840 Z2S6-1-6X/VSO481
R901374869 Z2S6-1-6X/V/60
R901429695 Z2S6-1-6X/V/60J3
R900747681 Z2S6-1-6X/V/62
R901426712 Z2S6-1-6X/VJ3
R900072644 Z2S6-1-6X=
R900068608 Z2S6-1-6X==PL
R900913720 Z2S6-1-6X=SO450=PL
R901408551 Z2S6-1-6X=V/60
R987163885 Z2S6-1-64STAMPEDFV2225050
R900347495 Z2S6-1-64/
R901129841 Z2S6-1-64//60
R900727969 Z2S6-1-64//62
R901107049 Z2S6-1-64//62
R901052079 Z2S6-1-64/=TE
R900376034 Z2S6-1-64/J
R901426713 Z2S6-1-64/J3
R901259432 Z2S6-1-64/J50
R900508098 Z2S6-1-64/JV
R900442783 Z2S6-1-64/MIL15
R901402145 Z2S6-1-64/SO150
R900347504 Z2S6-1-64/V
R900372840 Z2S6-1-64/VSO481
R901374869 Z2S6-1-64/V/60
R901429695 Z2S6-1-64/V/60J3
R900747681 Z2S6-1-64/V/62
R901426712 Z2S6-1-64/VJ3
R900072644 Z2S6-1-64=
R900068608 Z2S6-1-64==PL
R900913720 Z2S6-1-64=SO450=PL
R901408551 Z2S6-1-64=V/60
R900347496 Z2S6-2-6X/
R901154311 Z2S6-2-6X//62
R900068376 Z2S6-2-6X/=LB
R900483209 Z2S6-2-6X/J
R900521458 Z2S6-2-6X/JV
R900595899 Z2S6-2-6X/MIL15
R900504839 Z2S6-2-6X/SO26
R900347505 Z2S6-2-6X/V
R901263932 Z2S6-2-6X/V/62
R901436568 Z2S6-2-6X/VJ3
R901286324 Z2S6-2-6X/VJ50
R901030535 Z2S6-2-6X/XCV
R900072794 Z2S6-2-6X=V
R900347497 Z2S6-3-6X/
R901052128 Z2S6-3-6X/=TE
R900458250 Z2S6-3-6X/J
R900953976 Z2S6-3-6X/J
R901417797 Z2S6-3-6X/J3=TE
R900596848 Z2S6-3-6X/MIL15
R900347506 Z2S6-3-6X/V
R900950210 Z2S6-4-6X/
R901124299 Z2S6-4-6X/V
R900347498 Z2S6A1-6X/
R901107246 Z2S6A1-6X//62
R901268716 Z2S6A1-6X/60
R900375981 Z2S6A1-6X/J
R900581522 Z2S6A1-6X/JV
R900563546 Z2S6A1-6X/MIL15
R900454978 Z2S6A1-6X/SO111
R900473528 Z2S6A1-6X/SO56
R900347507 Z2S6A1-6X/V
R901170210 Z2S6A1-6X/V/60
R901126655 Z2S6A1-6X/V/62
R900347499 Z2S6A2-6X/
R900739494 Z2S6A2-6X//62
R900786910 Z2S6A2-6X/J
R900921826 Z2S6A2-6X/MIL15
R900347508 Z2S6A2-6X/V
R901426710 Z2S6A2-6X/VJ3
R901286325 Z2S6A2-6X/VJ50
R901030539 Z2S6A2-6X/XCV
R900347500 Z2S6A3-6X/
R900595234 Z2S6A3-6X/J
R900347509 Z2S6A3-6X/V
R983056760 Z2S6A3-6X/VIN010
R900347501 Z2S6B1-6X/
R901254993 Z2S6B1-6X//60
R901107241 Z2S6B1-6X//62
R900395133 Z2S6B1-6X/J
R900372460 Z2S6B1-6X/SO111
R901437169 Z2S6B1-6X/SO150
R901239412 Z2S6B1-6X/SO710
R900347510 Z2S6B1-6X/V
R901149420 Z2S6B1-6X/V/62
R901426711 Z2S6B1-6X/VJ3
R901288118 Z2S6B1-6X/VJ50
R900702167 Z2S6B1-6X=
R900576242 Z2S6B1-6X==PL
R900347502 Z2S6B2-6X/
R900782456 Z2S6B2-6X/J
R900921825 Z2S6B2-6X/MIL15
R900438365 Z2S6B2-6X/SO62
R900347511 Z2S6B2-6X/V
R983064662 Z2S6B2-6X/VIN010
R900347503 Z2S6B3-6X/
R900595233 Z2S6B3-6X/J
R900347512 Z2S6B3-6X/V
R983030693 Z2S6B3-6X/VIN010
R983030692 Z2S6B3-6XIN010
R983030682 Z2S6-1-6XIN010
R983030683 Z2S6-1-6X/VIN010
R983030688 Z2S6-2-6XIN010
R983030694 Z2S6-2-6X/VIN010
R983030684 Z2S6-3-6XIN010
R983052557 Z2S6-3-6X/VIN010
R983030685 Z2S6-A1-6XIN010
R983030691 Z2S6-A1-6X/VIN010
R983030686 Z2S6-A2-6XIN010
R983030689 Z2S6-A3-6XIN010
R983030687 Z2S6-B1-6XIN010
R983030695 Z2S6-B1-6X/VIN010
R983030690 Z2S6-B2-6XIN010
力士樂REXROTH疊加式液控單向閥Z2S 10
R983030703 Z2S10B2-3XIN010
R900407394 Z2S10-1-3X/
R901402344 Z2S10-1-3X/=KM
R900558982 Z2S10-1-3X/=LB
R900438180 Z2S10-1-3X/J
R901436572 Z2S10-1-3X/J3
R900437771 Z2S10-1-3X/JV
R900407439 Z2S10-1-3X/V
R900576597 Z2S10-1-3X=
R900421985 Z2S10-2-3X/
R900902866 Z2S10-2-3X/J
R901140423 Z2S10-2-3X/JV
R900507607 Z2S10-2-3X/SO32
R900436801 Z2S10-2-3X/V
R901404994 Z2S10-2-3X/VS0150
R901436574 Z2S10-2-3X/VJ3
R900431003 Z2S10-3-3X/
R983030701 Z2S10-3-3X/IN010
R900506964 Z2S10-3-3X/MIL15
R900440349 Z2S10-3-3X/V
R983042025 Z2S10-3-3X/VIN010
R983046862 Z2S10-4-3XIN010
R900420049 Z2S10-4-3X/
R901393675 Z2S10-4-3X/=NE
R901052092 Z2S10-4-3X/=TE
R901330981 Z2S10-4-3X/SO150
R900506366 Z2S10-4-3X/V
R983043156 Z2S10-A3-3X/IN010
R983042996 Z2S10-A4-3X/VIN010
R983043155 Z2S10-B3-3X/IN010
R900407424 Z2S10A1-3X/
R900584523 Z2S10A1-3X/J
R901436573 Z2S10A1-3X/J3
R900407440 Z2S10A1-3X/V
R900503728 Z2S10A1-3X/VSO49
R900434028 Z2S10A2-3X/
R900591534 Z2S10A2-3X/J
R900436812 Z2S10A2-3X/V
R900447732 Z2S10A3-3X/
R900437010 Z2S10A3-3X/
R901416254 Z2S10A3-3X/QMA
R900468484 Z2S10A3-3X/V
R900516212 Z2S10A4-3X/
R900567281 Z2S10A4-3X/V
R901425743 Z2S10A4-3X=J3
R900407434 Z2S10B1-3X/
R900464449 Z2S10B1-3X/J
R900583942 Z2S10B1-3X/SO18
R900407465 Z2S10B1-3X/V
R901424397 Z2S10B1-3X/V/XY
R900576598 Z2S10B1-3X=
R900435525 Z2S10B2-3X/
R900428795 Z2S10B2-3X/V
R983064332 Z2S10B2-3X/VIN010
R900436800 Z2S10B3-3X/
R901416255 Z2S10B3-3X/QMB
R900439705 Z2S10B3-3X/V
R900440312 Z2S10B4-3X/
R900519395 Z2S10B4-3X/V
R983030706 Z2S10B1-3X/VIN010
R983030696 Z2S10-1-3XIN010
R983030696 Z2S10-1-3XIN010
R983030697 Z2S10-1-3X/VIN010
R983030702 Z2S10-2-3XIN010
R983030705 Z2S10-2-3X/VIN010
R983030699 Z2S10-A1-3XIN010
R983030704 Z2S10-A1-3X/VIN010
R983030700 Z2S10-A2-3XIN010
R983030698 Z2S10-B1-3XIN010
力士樂疊加式液壓鎖單向閥Z2S 16
R900328797 Z2S16-1-5X/
R901402345 Z2S16-1-5X/=KM
R900535419 Z2S16-1-5X/J
R900085346 Z2S16-1-5X/ML
R900518562 Z2S16-1-5X/SO280
R900505825 Z2S16-1-5X/SO40
R900412459 Z2S16-1-5X/V
R901417166 Z2S16-1-5X/VJ3
R901299705 Z2S16-1-5X/VJ50
R900072647 Z2S16-1-5X=
R900401212 Z2S16-2-5X/
R900434675 Z2S16-2-5X/V
R900412346 Z2S16-3-5X/
R900412893 Z2S16-3-5X/V
R900442636 Z2S16-4-5X/
R900508670 Z2S16-4-5X/V
R900328798 Z2S16A1-5X/
R900525761 Z2S16A1-5X/J
R901318732 Z2S16A1-5X/SO18
R900518561 Z2S16A1-5X/SO280
R900061071 Z2S16A1-5X/SO30
R900407720 Z2S16A1-5X/V
R900402493 Z2S16A2-5X/
R900427329 Z2S16A2-5X/V
R900444118 Z2S16A3-5X/
R900085134 Z2S16A3-5X/V
R900566082 Z2S16A4-5X/
R900328799 Z2S16B1-5X/
R900446290 Z2S16B1-5X/V
R900477274 Z2S16B2-5X/
R900500092 Z2S16B2-5X/V
R900422295 Z2S16B3-5X/
R901168688 Z2S16B3-5X/V
R900539653 Z2S16B4-5X/
R901348885 Z2S16B4-5X/V
R971893714 Z2S16-1-5X/
R971893715 Z2S16-2-5X/
R971893710 Z2S16A1-5X/
R900427364 Z2S16A2-5X/V
R971893711 Z2S16B1-5X/
R971893712 Z2S16B1-5X/V
R971893713 Z2S16B2-5X/
R900328797 Z2S16-1-51/
R901402345 Z2S16-1-51/=KM
R900535419 Z2S16-1-51/J
R900085346 Z2S16-1-51/ML
R900518562 Z2S16-1-51/SO280
R900505825 Z2S16-1-51/SO40
R900412459 Z2S16-1-51/V
R901417166 Z2S16-1-51/VJ3
R901299705 Z2S16-1-51/VJ50
R900072647 Z2S16-1-5X=
R900401212 Z2S16-2-51/
R900434675 Z2S16-2-51/V
R900412346 Z2S16-3-51/
R900412893 Z2S16-3-51/V
R900442636 Z2S16-4-51/
R900508670 Z2S16-4-51/V
R900328798 Z2S16A1-51/
R900525761 Z2S16A1-51/J
R901318732 Z2S16A1-51/SO18
R900518561 Z2S16A1-51/SO280
R900061071 Z2S16A1-51/SO30
R900407720 Z2S16A1-51/V
R900402493 Z2S16A2-51/
R900427329 Z2S16A2-51/V
R900444118 Z2S16A3-51/
R900085134 Z2S16A3-51/V
R900566082 Z2S16A4-51/
R900328799 Z2S16B1-51/
R900446290 Z2S16B1-51/V
R900477274 Z2S16B2-51/
R900500092 Z2S16B2-51/V
R900422295 Z2S16B3-51/
R901168688 Z2S16B3-51/V
R900539653 Z2S16B4-51/
R901348885 Z2S16B4-51/V
R971893714 Z2S16-1-51/
R971893715 Z2S16-2-51/
R971893710 Z2S16A1-51/
R900427364 Z2S16A2-51/V
R971893711 Z2S16B1-51/
R971893712 Z2S16B1-51/V
R971893713 Z2S16B2-51/
力士樂疊加式液壓鎖單向閥Z2S 22
R900433032 Z2S22A1-5X/
R900539017 Z2S22A1-5X/SO21
R900346704 Z2S22A1-5X/V
R900457907 Z2S22A2-5X/
R900589414 Z2S22A2-5X/V
R900507469 Z2S22A3-5X/
R900988977 Z2S22A3-5X/V
R900522102 Z2S22A4-5X/
R900433037 Z2S22B1-5X/
R900533752 Z2S22B1-5X/V
R901017619 Z2S22B1-5X/VSO60
R900072796 Z2S22B1-5X=
R900437818 Z2S22B2-5X/
R900591053 Z2S22B2-5X/V
R900528638 Z2S22B3-5X/
R900509911 Z2S22B4-5X/
R900432915 Z2S22-1-5X/
R900443803 Z2S22-1-5X/SO21
R900436495 Z2S22-1-5X/V
R900072795 Z2S22-1-5X=
R900433031 Z2S22-2-5X/
R900525586 Z2S22-2-5X/V
R900439719 Z2S22-3-5X/
R900476296 Z2S22-3-5X/V
R900435968 Z2S22-4-5X/
R901337072 Z2S22-4-5X/V
R987123806 Z2S22-4-5X/V
R987123806 Z2S22-4-5X/V
R978859136 Z2S22B3-5X/V
R978859137 Z2S22B4-5X/V
力士樂REXROTH單向閥,先導(dǎo)式Z2S 32
R900561268 Z2S32A1X/
R900902028 Z2S32B1X/
R900941301 Z2S32B1X/V
R900342107 Z2S32-1X/
R901254994 Z2S32-1X/V
力士樂REXROTH液控單向閥SV 6
R901320289 SV6PA1-6X/
R901429568 SV6PA1-6X/V
R901407741 SV6PA2-6X/
R901394118 SV6PA3-6X/J50
R900494086 SV6PB1-6X/
R900516740 SV6PB1-6X/J
R900593008 SV6PB1-6X/V
R900411995 SV6PB1-6X/W64
R900589253 SV6PB2-6X/
R901353602 SV6PB2-6X/J50
R900516497 SV6PB2-6X/V
R900598166 SV6PB3-6X/
R900597481 SV6PB3-6X/V
R900586840 SV6PB4-6X/
R900247185 SV6PB4-6X/V
力士樂液控單向閥SV 10...32
R900483368 SV10GA1-4X/
R900481097 SV10GA1-4X//12
R900426680 SV10GA1-4X//5
R900586980 SV10GA1-4X/J
R901430216 SV10GA1-4X/J3
R900469894 SV10GA1-4X/SO43
R900465776 SV10GA1-4X/V
R900462117 SV10GA1-4X/V/12
R900437841 SV10GA1-4X/V/5
1、液壓閥的作用:控制液流的壓力、流量和方向,保證執(zhí)行元件按照要求進(jìn)行工作。
2、液壓閥的基本結(jié)構(gòu):包括閥芯、閥體和驅(qū)動(dòng)閥芯在閥體內(nèi)作相對(duì)運(yùn)動(dòng)的裝置。
3、液壓閥的工作原理:利用閥芯在閥體內(nèi)作相對(duì)運(yùn)動(dòng)來控制閥口的通斷及閥口的大小,實(shí)現(xiàn)壓力、流量和方向的控制。
液壓閥的分類:
1根據(jù)結(jié)構(gòu)形式分類
滑閥:滑閥為間隙密封,閥芯與閥口存在一定的密封長(zhǎng)度,因此滑閥運(yùn)動(dòng)存在一個(gè)死區(qū)。
錐閥:錐閥閥芯半錐角一 般為12°-20°,閥口關(guān)閉時(shí)為線密封,密封性能好且動(dòng)作靈敏。
球閥:性能與錐閥相同
2.根據(jù)控制制方式不同分:
定值或開關(guān)控制閥:被控制量為定值的閥類,包括普通控制閥、插裝閥、疊加閥。
比例控制閥:被控制量與輸入信號(hào)成比例連續(xù)變化的閥類,包括普通比例閥和帶內(nèi)反饋的電液比例閥。
伺服控制閥:被控制量與(輸出與輸入之間的)偏差信號(hào)成比例連續(xù)變化的閥類,包括機(jī)液伺服閥和電液伺服閥。.
數(shù)字控制閥:用數(shù)字信息直接控制閥口的啟閉,來控制液流的壓力、流
量、方向的閥類。
3.根據(jù)用途分:
壓力控制閥、流量控制閥、方向控制閥
方向控制閥的作用:在液壓系統(tǒng)中控制液流方向。
方向控制閥包括:單向閥和換向閥
單向閥包括:普通單向閥和液控單向閥
1.普通單向閥
使油液只能沿一個(gè)方向流動(dòng),反向則被截止的方向閥。
普通單向閥的應(yīng)用
常被安裝在泵的出口,一方面防止壓力沖擊影響泵的正常工作,另一方面防止泵不工作時(shí)系統(tǒng)油液倒流經(jīng)泵回油箱。
被用來分隔油路以防止高低壓干擾。:
與其他的閥組成單向節(jié)流閥、單向減壓閥、單向順序閥等復(fù)合閥。
安裝在執(zhí)行元件的回油路上,使回油具有一定背壓。作背壓閥的單向閥應(yīng)更換剛度較大的彈簧,其正向開啟壓力為( 0. 3~0.5) MPa。
2.液控單向閥
外泄式液控單向閥,內(nèi)泄式單向閥
工作原理:當(dāng)控制油口不通壓力油時(shí),油液只能從pi→P:當(dāng)控制油口通壓力油時(shí),正、反向的油液均可自由通過。
3.換向閥
換向閥是利用閥芯在閥體孔內(nèi)作相對(duì)運(yùn)動(dòng),使油路接通或切斷而改變油流方向的閥。
換向閥的分類
按結(jié)構(gòu)形式可分:滑閥式、轉(zhuǎn)閥式、球閥式。
按閥體連通的主油路數(shù)可分:兩通、三通、四通...等。
按閥芯在閥體內(nèi)的工作位置可分:兩位、三位、四位等。
按操作閥芯運(yùn)動(dòng)的方式可分:手動(dòng)、機(jī)動(dòng)、電磁動(dòng)、液動(dòng)、電液動(dòng)等。
換向閥的中位機(jī)能,多位閥在不同工作位置時(shí),各油口的連通方式體現(xiàn)了換向閥的不同的控制機(jī)能,稱之為換向閥的機(jī)能。對(duì)于三位閥,左、右位實(shí)現(xiàn)執(zhí)行元件的換向,中位則能滿足執(zhí)行元件處于非工作狀態(tài)時(shí)系統(tǒng)的不同要求。
4.壓力控制閥
壓力控制閥的作用:
1、用來控制液壓系統(tǒng)中油液壓力;
1)溢流閥:直動(dòng)式溢流閥、先導(dǎo)式溢流閥
2)減壓閥
2、以壓力為控制信號(hào)實(shí)現(xiàn)油路通斷。
3)順序閥
4)壓力繼電器
共同工作原理:利用作用于閥心上的液壓力與彈簧力相平衡的原理進(jìn)行工作。
溢流閥應(yīng)用實(shí)例
(1)為定量泵系統(tǒng)溢流穩(wěn)壓和定量泵、節(jié)流閥并聯(lián),閥口常開。
(2)變量泵系統(tǒng)提供過載保護(hù)
和變量泵組合,正常工作時(shí)閥口關(guān)閉,過載時(shí)打開,起安全保護(hù)作用,故又稱安全閥。
(3)實(shí)現(xiàn)遠(yuǎn)程調(diào)壓 p遠(yuǎn)程< p主調(diào)
(4)系統(tǒng)卸荷和多級(jí)調(diào)壓 和二位二通閥組合(先導(dǎo)式)
(5)形成背壓
減壓閥用于降低并穩(wěn)定系統(tǒng)中某一支路的油液壓力,常用于夾緊、控制等油路中。
順序閥是一種利用壓力控制閥口通斷的壓力閥,因用于控制多個(gè)執(zhí)行元件的動(dòng)作順序而得名。按控制油來源不同分內(nèi)控和外控,按彈簧腔泄漏油引出方式不同分內(nèi)泄和外泄。
壓力繼電器功用:根據(jù)系統(tǒng)壓力變化,自動(dòng)接通或斷開電路,實(shí)現(xiàn)程序控制或安全保護(hù)。
工作原理: pk> pT時(shí),柱塞上升,發(fā)出信號(hào)pk< pT時(shí),柱塞下降,斷開信號(hào)。
5.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(yùn)動(dòng)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(shí),改變開口面積即改變液阻就可改變流量。
節(jié)流閥實(shí)質(zhì)相當(dāng)于-一個(gè)可變節(jié)流口,借助控制機(jī)構(gòu)使閥芯相對(duì)于閥體孔運(yùn)動(dòng)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(dòng)改變閥口過流面積。為平衡液壓徑向力,三角槽須對(duì)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)通過的流量自動(dòng)補(bǔ)
償負(fù)載變化的影響。
插裝閥
上世紀(jì)70年代初發(fā)展起來的一種新元件,是古老錐閥的新應(yīng)用。配以蓋板、先導(dǎo)閥組成的-種多功能的復(fù)合閥。因每個(gè)插裝閥基本組件有且只有兩個(gè)油口,故被稱為二通插裝閥。
特點(diǎn):
閥芯為錐閥,密封性能好,且動(dòng)作靈敏;
通流能力大,抗污染;
一閥多用,易組成各式系統(tǒng),結(jié)構(gòu)緊湊。
特別對(duì)大流量及非礦物油介質(zhì)的場(chǎng)合,優(yōu)點(diǎn)更為突出。
插裝閥基本組件由閥芯、閥套、彈簀和密封圈組成。根據(jù)用途不同分為方向閥組件、壓力閥組件和流量閥組件。
插裝閥的應(yīng)用
單向閥
將方向閥組件的控制口通過閥塊和蓋板上的通道與油口A或B直接溝通,可組成單向閥。
二通閥
由一個(gè)二位三通電磁滑閥控制方向閥組件控制腔的通油方式,可組成二位二通閥。
三通閥
由兩個(gè)方向閥組件并聯(lián)而成,對(duì)外形成-一個(gè)壓力油口、-一個(gè)工作油口和一一個(gè)回油口。三通插裝閥的工作狀態(tài)數(shù)取決于先導(dǎo)換向閥的工作位置數(shù)。
四通閥由兩個(gè)三通閥并聯(lián)而成。
疊加閥以板式閥為基礎(chǔ),每個(gè)疊加閥不僅起到單個(gè)閥的功能,而且還溝通閥與閥的流道。換向閥安裝在*上方,對(duì)外連接油口開在*下邊的底板上,其他的閥通過螺栓連接在換向閥和底板之間。
由疊加閥組成的系統(tǒng)結(jié)構(gòu)緊湊,配置靈活,設(shè)計(jì)制造周期短。
6.伺服閥是-種根據(jù)輸入信號(hào)及輸出信號(hào)反饋量連續(xù)成比例地控制流量和壓力的液壓控制閥。根據(jù)輸入信號(hào)的方式不同,又分電液伺服閥和機(jī)液伺服閥。電液伺服閥將小功率的電信號(hào)轉(zhuǎn)換為大功率的液壓能輸出,實(shí)現(xiàn)執(zhí)行元件的位移、速度、加速度及力的控制。
電液伺服閥由電氣一機(jī)械轉(zhuǎn)換裝置、液壓放大器和反饋(平衡)機(jī)構(gòu)三部分組成。
電氣一機(jī)械轉(zhuǎn)換裝置將輸入的電信號(hào)轉(zhuǎn)換為轉(zhuǎn)角或直線位移輸出,常稱為力矩馬達(dá)或力馬達(dá)。
電液比例閥是一種性能介于普通控制閥和電液伺服閥之間的新閥種。它既可以根據(jù)輸入電信號(hào)的大小連續(xù)成比例地對(duì)油液的壓力、流量、方向?qū)崿F(xiàn)遠(yuǎn)距離控制、計(jì)算機(jī)控制,又在制造成本、抗污染等方面優(yōu)于電液伺服閥。
電液比例閥根據(jù)用途分為:電液比例壓力閥,電液比例流量閥,電液比例方向閥。
電液比例閥的控制性能低于電液伺服閥,因此廣泛應(yīng)用于要求不高的一般工業(yè)部門。
電液比例溢流閥
組成:
比例電磁鐵+直動(dòng)式溢流閥主體
工作原理:
輸入一I,產(chǎn)生一電磁力,作用于閥心上,得到- -控制壓力,其pI, I變化,p也變化。
電液比例換向閥
比例電磁鐵替代普通電磁換向閥中的普通電磁鐵即可。
工作原理:輸入- ~I,得到一個(gè)運(yùn)動(dòng)方向,并且還可改變輸出流量的
大小;改變電流信號(hào)極性,即可改變運(yùn)動(dòng)方向。
比例調(diào)速閥
組成:
比例電磁鐵替代調(diào)速閥中的調(diào)節(jié)螺帽即可。
工作原理:輸入—I, 得到一相應(yīng)運(yùn)動(dòng),使節(jié)流閥閥口變化,流量變化,qV∞I。