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R901101640 HED8OH-20/350K14力士樂壓力繼電器
武漢百士自動化設備有限公司專注于液壓、氣動、工控自動化備件銷售,熱誠歡迎新老客戶咨詢購買!
1.壓力繼電器,液壓術語,是液壓系統(tǒng)中當流體壓力達到預定值時,使電接點動作的元件。
2.是將壓力轉(zhuǎn)換成電信號的液壓元器件,客戶根據(jù)自身的壓力設計需要,通過調(diào)節(jié)壓力繼電器,實現(xiàn)在某一設定的壓力時,輸出一個電信號的功能。
工作原理
壓力繼電器是利用液體的壓力來啟閉電氣觸點的液壓電氣轉(zhuǎn)換元件。當系統(tǒng)壓力達到壓力繼電器的調(diào)定值時,發(fā)出電信號,使電氣元件(如電磁鐵、電機、時間繼電器、電磁離合器等)動作,使油路卸壓、換向,執(zhí)行元件實現(xiàn)順序動作,或關閉電動機使系統(tǒng)停止工作,起安全保護作用等。
壓力繼電器有柱塞式、膜片式、彈簧管式和波紋管式四種結(jié)構(gòu)形式。下面對柱塞式壓力繼電器(見圖)的工作原理作一介紹:
當從繼電器下端進油口3進入的液體壓力達到調(diào)定壓力值時,推動柱塞2上移,此位移通過杠桿放大后推動微動開關4動作。改變彈簧1的壓縮量,可以調(diào)節(jié)繼電器的動作壓力。
應用場合:用于安全保護、控制執(zhí)行元件的順序動作、用于泵的啟閉、用于泵的卸荷。
注意: 壓力繼電器必須放在壓力有明顯變化的地方才能輸出電信號。若將壓力繼電器放在回油路上,由于回油路直接接回油箱,壓力也沒有變化,所以壓力繼電器也不會工作。
2選用標準
根據(jù)所測對象的壓力來選用,比如所測壓力范圍在8KG以內(nèi),那么就要選用額定10KG的壓力繼電器,還有要符合電路中的額定電壓,接口管徑的大小
3使用方法
*先用于安全保護時,將壓力繼電器設置在夾緊液壓缸的一端,液壓泵啟動后,*先將工件夾緊,此時夾緊液壓缸的右腔壓力升高,當升高到壓力繼電器的調(diào)定值時,壓力繼電器動作,發(fā)出電信號使2YA通電,于是切削液壓缸進刀切削。在加工期間,壓力繼電器微動開關的常開觸點始終閉合。若工件沒有夾緊,壓力繼電器2斷開,于是2YA斷電,切削液壓缸立即停止進刀,從而避免工件未夾緊被切削而出事故。
其實用于控制執(zhí)行元件的順序動作時,液壓泵啟動后,*先2YA通電,液壓缸左腔進油,推動活塞方向右移。當碰到限位器(或死擋鐵)后,系統(tǒng)壓力升高,壓力繼電器發(fā)出電信號,使1YA通電,高壓油進入液壓缸的左腔,推動活塞右移。這時若3YA也通電,液壓缸的活塞快速右移;若3YA斷電,則液壓缸的活塞慢速右移,其慢速運動速度由節(jié)流閥調(diào)節(jié)。
再次用于液壓泵卸荷時,壓力繼電器不是控制液壓泵停止轉(zhuǎn)動,而是控制二位二通電磁閥,將液壓泵5輸出的壓力油流回油箱,使其卸荷。
**用于液壓泵的啟閉時,有兩個液壓泵,高壓小流量泵,低壓大流量泵。當活塞快速下降時,兩泵同時輸出壓力油。當液壓缸活塞桿抵住工件開始加壓時,壓力繼電器在壓力油作用下發(fā)出動作,觸動微動開關,將常閉觸點斷開,使液壓泵停轉(zhuǎn)。在加工過程中減慢液壓缸的速度,同時減少動力消耗。
R901107369 HED8OH-2X/200K14KW
R901125810 HED8OH-2X/200K14KWV
R901102362 HED8OH-2X/200K14S
R901109074 HED8OH-2X/200K14SV
R901099789 HED8OH-2X/200K14V
R901148816 HED8OH-2X/200K35KS
R901171767 HED8OH-2X/200K35S
R901270140 HED8OH-2X/200P110K14S
R901139168 HED8OH-2X/200P145K14S
R901139169 HED8OH-2X/200P185K14S
R901099813 HED8OH-2X/200U150K14V
R901099814 HED8OH-2X/200U180K14V
R901099793 HED8OH-2X/200U185K14V
R901101640 HED8OH-2X/350K14
R901107313 HED8OH-2X/350K14A
R901108236 HED8OH-2X/350K14AS
R901109071 HED8OH-2X/350K14ASV
R901099816 HED8OH-2X/350K14AV
R901106454 HED8OH-2X/350K14KS
R901099817 HED8OH-2X/350K14KSV
R901107095 HED8OH-2X/350K14KW
R901109069 HED8OH-2X/350K14KWV
R901102713 HED8OH-2X/350K14S
R901109065 HED8OH-2X/350K14SV
R901099815 HED8OH-2X/350K14V
R901388617 HED8OH-2X/350K35
R901417246 HED8OH-2X/350K35AS
R901265207 HED8OH-2X/350K35S
R901128257 HED8OH-2X/50F004K14SV
R901219262 HED8OH-2X/50F010K14V
R901102349 HED8OH-2X/50K14
R901108007 HED8OH-2X/50K14A
R901107086 HED8OH-2X/50K14AS
R901109050 HED8OH-2X/50K14ASV
R901099798 HED8OH-2X/50K14AV
R901102356 HED8OH-2X/50K14KS
R901099800 HED8OH-2X/50K14KSV
R901107394 HED8OH-2X/50K14KW
R901109049 HED8OH-2X/50K14KWV
R901102712 HED8OH-2X/50K14S
R901215098 HED8OH-2X/50K14SV
R901099796 HED8OH-2X/50K14V
R901156058 HED8OH-2X/50K35KS
R901231720 HED8OH-2X/50K35S
R901101658 HED8OH-2X/630K14
R901109035 HED8OH-2X/630K14AS
R901109039 HED8OH-2X/630K14ASV
R901136386 HED8OH-2X/630K14KS
R901307873 HED8OH-2X/630K14KSV
R901336213 HED8OH-2X/630K14KW
R901109029 HED8OH-2X/630K14S
R901101649 HED8OH-2X/630K14V
R901369355 HED8OH-2X=200K14
R901342162 HED8OH-2X=50K14
R901232375 HED8OH-2X=50K14S
R987140394 HED8OH2X/350K14+PISTOKE
R901102747 HED8OP-2X/100K14
R901108229 HED8OP-2X/100K14A
R901107790 HED8OP-2X/100K14AS
R901162988 HED8OP-2X/100K14ASV
R901321355 HED8OP-2X/100K14AV
R901107997 HED8OP-2X/100K14KS
R901107370 HED8OP-2X/100K14KW
R901106509 HED8OP-2X/100K14S
R901109028 HED8OP-2X/100K14SV
R901108265 HED8OP-2X/100K14V
R901437159 HED8OP-2X/100K35
R901206318 HED8OP-2X/100K35KW
R901127492 HED8OP-2X/100K35S
R901354506 HED8OP-2X/100P020K14S
R901354507 HED8OP-2X/100P030K14S
R901109027 HED8OP-2X/100P070K14S
R901102721 HED8OP-2X/200K14
R901108023 HED8OP-2X/200K14A
R901108003 HED8OP-2X/200K14AS
R901109024 HED8OP-2X/200K14ASV
R901137607 HED8OP-2X/200K14AV
R901108258 HED8OP-2X/200K14KS
R901108018 HED8OP-2X/200K14KW
R901109010 HED8OP-2X/200K14KWV
R901107093 HED8OP-2X/200K14S
R901109004 HED8OP-2X/200K14SV
R901107397 HED8OP-2X/200K14V
R901336909 HED8OP-2X/200K35S
R901233431 HED8OP-2X/200P110K14S
R901108992 HED8OP-2X/200P160K14S
R901106453 HED8OP-2X/350K14
R901107326 HED8OP-2X/350K14A
R901091138 HED8OP-2X/350K14AS
R901108531 HED8OP-2X/350K14ASV
R901126082 HED8OP-2X/350K14AV
R901107914 HED8OP-2X/350K14KS
R901107129 HED8OP-2X/350K14KW
R901122124 HED8OP-2X/350K14KWV
R901102365 HED8OP-2X/350K14S
R901107913 HED8OP-2X/350K14SV
R901107330 HED8OP-2X/350K14V
R901127494 HED8OP-2X/350K35S
R901434285 HED8OP-2X/350P120K14KS
R901108252 HED8OP-2X/350P140K14S
R901456336 HED8OP-2X/350P280K14S
R901107083 HED8OP-2X/50K14
R901107999 HED8OP-2X/50K14A
R901107396 HED8OP-2X/50K14AS
R901123736 HED8OP-2X/50K14AV
R901108012 HED8OP-2X/50K14KS
R901108249 HED8OP-2X/50K14KW
R901106504 HED8OP-2X/50K14S
R901140517 HED8OP-2X/50K14SV
R901108001 HED8OP-2X/50K14V
R901131275 HED8OP-2X/50K35
R901336910 HED8OP-2X/50K35S
R901159161 HED8OP-2X/50K35V
R901245432 HED8OP-2X/50U025K14AV
R901108147 HED8OP-2X/630K14
R901210429 HED8OP-2X/630K14A
R901280745 HED8OP-2X/630K14AS
R901171255 HED8OP-2X/630K14ASV
R901124650 HED8OP-2X/630K14KS
R901315271 HED8OP-2X/630K14KW
R901106449 HED8OP-2X/630K14S
R901108529 HED8OP-2X/630K14V
R901437158 HED8OP-2X/630K35
R901251521 HED8OP-2X=50K14AS
R987437823 HED8OH-2X/100K14SSETTO80BARFALLING
R987411811 HED8OP2X/350K14SSETTO280BAR
R971012678 HED8OA-2X/350K14S(12.3MPA)
R971012679 HED8OA-2X/350K14S(17.2MPA)
R971012681 HED8OA-2X/350K14S(21.6MPA)
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