REXROTH比例溢流閥DBETX-10/250G24-8NZ4M
電液比例閥是采用了比例控制技術(shù),介于開關(guān)型液壓閥和電液伺服閥之間的-種液壓元件,在工業(yè)生產(chǎn)中獲得了廣泛的應(yīng)用,輸入的電信號有模擬式和數(shù)字式兩大類,可以用于控制位置(轉(zhuǎn)角)、速度(轉(zhuǎn)速)、加速度(角加速度)、壓力(壓差)、力(力矩)等參數(shù)。電液比例閥等元件可以組成如下三類控制回路和系統(tǒng)
(1)電液比例壓力控制回路和系統(tǒng)。例如:用于帶鋼熱連軋機(jī)卷取機(jī)液壓輔助系統(tǒng)的電液比例壓力控制回路,用于板帶軋機(jī)輥縫控制的液壓推上系統(tǒng)電液比例壓力控制回路,用于帶材卷取設(shè)備恒張力的閉環(huán)電液比例壓力控制回路;
(2)電液比例流量控制回路和系統(tǒng)。例如:用于帶鋼熱連軋機(jī)精軋機(jī)平衡液壓系統(tǒng)的電液比例壓力控制回路,用于機(jī)床微進(jìn)給的電液比例控制回路,用于旋壓機(jī)折板機(jī)同步的電液比例控制回路,用于電梯的電液比例控制回路;
(3)電液比例多參數(shù)控制回路和系統(tǒng)。例如:用于帶鋼熱連軋機(jī)精軋換輥液壓系統(tǒng)的電液比例壓力控制回路,用于液壓缸垂直配置而采用wI型閥芯的比例控制回路,用于熱軋鋼卷步進(jìn)鏈?zhǔn)竭\(yùn)輸機(jī)的速度、加減速度控制回路。
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DB/DBW型先導(dǎo)溢流閥
1.結(jié)構(gòu)和工作原理
DB型閥是先導(dǎo)控制式的溢流閥; DBW型閥是先導(dǎo)控制式的電磁溢閥。DB
型閥是用來控制液壓系統(tǒng)的壓力; DBW型閥也可以控制液壓系統(tǒng)的壓力,并且能在任意時(shí)刻使系統(tǒng)卸荷。
DB型閥主要是由先導(dǎo)閥和主閥組成。DBW型閥是由電磁換向閥、先導(dǎo)閥和主閥組成。
DB型溢流閥:
閥腔的壓力油作用在主閥芯下端的同時(shí),通過阻尼器和通道作用在主閥芯上端和先導(dǎo)閥的錐閥上。當(dāng)系統(tǒng)壓力超過彈簧的調(diào)定值時(shí),錐閥被打開。同時(shí)主閥芯上端的壓力油通過阻尼器、通道、彈簧腔及通道流回B腔(控制油內(nèi)排型)或通過外排口流回油箱(控制油外排型)。這樣,當(dāng)壓力油通過阻尼器時(shí)在主閥芯上產(chǎn)生了一個(gè)壓力差,主閥芯在這個(gè)壓差的作用下打開,這樣在調(diào)定的工作壓力下壓力油從A腔流到B腔(即卸荷)。
DBW型電磁溢流閥:
此閥工作原理與DB型閥相同,只是可通過安裝在先導(dǎo)閥上的電磁換向閥使系統(tǒng)在任意時(shí)刻卸荷。
DB/DBW型閥均設(shè)有控制油內(nèi)部供油道和內(nèi)部排油道控制油外供口和外排口。這樣就可根據(jù)控制油供給和排出的不同形式的組合內(nèi)供內(nèi)排、外供內(nèi)排、內(nèi)供外排和外供外排4種型式。
REXROTH比例溢流閥DBETX-10/250G24-8NZ4M
力士樂REXROTH比例壓力控制閥
力士樂REXROTH比例溢流閥
力士樂REXROTH比例溢流閥,直動式
力士樂REXROTH壓力控制比例溢流閥,直動式、帶集成式電子放大版(OBE)DBETA
R901347330 DBETA-6X/B100G24K31A1M
R901352129 DBETA-6X/B100G24K31A1V
R901354432 DBETA-6X/B100G24K31F1V
R901355575 DBETA-6X/B200G24K31A1M
R901347332 DBETA-6X/B200G24K31A1V
R901366231 DBETA-6X/B200G24K31F1V
R901395862 DBETA-6X/B350G24K31A1M
R901347335 DBETA-6X/B350G24K31A1V
R901354434 DBETA-6X/B500G24K31A1M
R901347339 DBETA-6X/B500G24K31F1M
R901352128 DBETA-6X/B50G24K31F1V
R901347329 DBETA-6X/P100G24K31A1M
R901352133 DBETA-6X/P100G24K31A1V
R901434612 DBETA-6X/P100G24K31F1M
R901389528 DBETA-6X/P100G24K31F1V
R901392399 DBETA-6X/P180G24K31A1M=KM
R901355571 DBETA-6X/P200G24K31A1M
R901338404 DBETA-6X/P200G24K31A1V
R901347333 DBETA-6X/P200G24K31F1M
R901347334 DBETA-6X/P200G24K31F1V
R901195289 DBETA-6X/P250G24K31A1M
R901439791 DBETA-6X/P250G24K31A1M=KM
R901355570 DBETA-6X/P350G24K31A1M
R901352135 DBETA-6X/P350G24K31A1V
R901422861 DBETA-6X/P350G24K31F1M
R901347337 DBETA-6X/P350G24K31F1V
R901347341 DBETA-6X/P500G24K31A1M
R901352137 DBETA-6X/P500G24K31F1M
R901347323 DBETA-6X/P50G24K31A1V
R901347327 DBETA-6X/P50G24K31F1V
力士樂REXROTH比例壓力溢流閥,直動式,位置反饋(LVDT交流/交流)DBETBX
0811104082 DBETBX-1X/180G24-16Z4M
0811402006 DBETBX-1X/180G24-16Z4M-41
0811402003 DBETBX-1X/180G24-37Z4M
0811C02003 DBETBX-1X/180G24-37Z4MPU1
0811402014 DBETBX-1X/230G24-16Z4M-37
0811402001 DBETBX-1X/250G24-37Z4M-38
0811402011 DBETBX-1X/25G24-16Z4M-37
0811402013 DBETBX-1X/28G24-37Z4M
0811104083 DBETBX-1X/315G24-16Z4M
0811402033 DBETBX-1X/315G24-25Z4M
0811402004 DBETBX-1X/315G24-37Z4M
0811402005 DBETBX-1X/315G24-37Z4M-38
0811402015 DBETBX-1X/80G24-16Z4M-37
0811402007 DBETBX-1X/80G24-37Z4M-38
0811402016 DBETX-1X/315G24-8NZ4M
0811402019 DBETX-1X/250G24-8NZ4M
0811104082 DBETBX-10/180G24-16Z4M
0811402006 DBETBX-10/180G24-16Z4M-41
0811402003 DBETBX-10/180G24-37Z4M
0811C02003 DBETBX-10/180G24-37Z4MPU1
0811402014 DBETBX-10/230G24-16Z4M-37
0811402001 DBETBX-10/250G24-37Z4M-38
0811402011 DBETBX-10/25G24-16Z4M-37
0811402013 DBETBX-10/28G24-37Z4M
0811104083 DBETBX-10/315G24-16Z4M
0811402033 DBETBX-10/315G24-25Z4M
0811402004 DBETBX-10/315G24-37Z4M
0811402005 DBETBX-10/315G24-37Z4M-38
0811402015 DBETBX-10/80G24-16Z4M-37
0811402007 DBETBX-10/80G24-37Z4M-38
0811402016 DBETX-10/315G24-8NZ4M
0811402019 DBETX-10/250G24-8NZ4M
力士樂REXROTH比例壓力溢流閥,直動式、集成式電子放大版(OBE)和位置反饋DBETBEX
0811402071 DBETBEX-1X/180G24K31A1M
0811402142 DBETBEX-1X/180G24K31A1V
0811402075 DBETBEX-1X/180G24K31F1M
R901432146 DBETBEX-1X/180G24K31F1V
0811402073 DBETBEX-1X/250G24K31A1M
R901349472 DBETBEX-1X/250G24K31A1M-42
R901332968 DBETBEX-1X/250G24K31A1V
R901223184 DBETBEX-1X/250G24K31F1M
R901182111 DBETBEX-1X/30G24K31A1M
0811402074 DBETBEX-1X/315G24K0B5M
0811402070 DBETBEX-1X/315G24K31A1M
0811402141 DBETBEX-1X/315G24K31F1M
R901329740 DBETBEX-1X/315G24K31F1V
0811402072 DBETBEX-1X/80G24K31A1M
0811402140 DBETBEX-1X/80G24K31F1M
R901274364 DBETBEX-1X/80G24K31F1V
力士樂REXROTH比例壓力溢流閥,直動式,不帶集成電子(OBE)DBET
0811402043 DBE6X-1X/315G24-8NZ4M
R901301788 DBET-6X/100G24-8K4V
R901191520 DBET-6X/100G24K4M
R901000845 DBET-6X/100G24K4V
R901344474 DBET-6X/100YG24-8K4V
R901369043 DBET-6X/100YG24-8K4V-7
R901194749 DBET-6X/100YG24K4M
R901065549 DBET-6X/100YG24K4V
R901170278 DBET-6X/200G24-8K4V
R901191521 DBET-6X/200G24K4M
R901000846 DBET-6X/200G24K4V
R901065551 DBET-6X/200G24K4V=LB
R901377147 DBET-6X/200YG24-8K4V
R901369045 DBET-6X/200YG24-8K4V-7
R901194748 DBET-6X/200YG24K4M
R901065548 DBET-6X/200YG24K4V
R901191522 DBET-6X/250G24K4M
R901198956 DBET-6X/250YG24K4M
R901383287 DBET-6X/315G24-8K4M
R901170279 DBET-6X/315G24-8K4V
R901191523 DBET-6X/315G24K4M
R901000847 DBET-6X/315G24K4V
R901065553 DBET-6X/315G24K4V=DE
R901065552 DBET-6X/315G24K4V=LB
R901416841 DBET-6X/315YG24-8K4M
R901308350 DBET-6X/315YG24-8K4V
R901369047 DBET-6X/315YG24-8K4V-7
R901194747 DBET-6X/315YG24K4M
R901065547 DBET-6X/315YG24K4V
R902650849 DBET-6X/350G24K4VRD29162
R901403499 DBET-6X/350G24-8K4M
R901318924 DBET-6X/350G24-8K4V
R901191524 DBET-6X/350G24K4M
R901000848 DBET-6X/350G24K4V
R901373134 DBET-6X/350YG24-8K4M
R901443821 DBET-6X/350YG24-8K4V
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R901194745 DBET-6X/350YG24K4M
R901065546 DBET-6X/350YG24K4V
R901229279 DBET-6X/420G24-8K4V
R901108319 DBET-6X/420G24K4V
R901097344 DBET-6X/420YG24K4V
R901412251 DBET-6X/50G24-8K4M-6
R901278288 DBET-6X/50G24-8K4V
R901000842 DBET-6X/50G24K4V
R901406176 DBET-6X/50YG24-8K4M
R901369036 DBET-6X/50YG24-8K4V-7
R901065545 DBET-6X/50YG24K4V
R901236313 DBET-6X=350G24K4V
R901351510 DBET-6X=420G24K4V-320
力士樂REXROTH比例溢流閥,直動式、帶集成電子放大版(OBE)DBETE
R901029967 DBETE-6X/100G24K31A1V
R901423919 DBETE-6X/100G24K31F1M
R901045242 DBETE-6X/100G24K31F1V
R901064545 DBETE-6X/100YG24K31A1V
R901150563 DBETE-6X/100YG24K31F1V
R988003769 DBETE-6X/100YG24K31F1V-1
R901093993 DBETE-6X/200G24K31A1M
R901029968 DBETE-6X/200G24K31A1V
R901064705 DBETE-6X/200G24K31A1V=LB
R901415729 DBETE-6X/200G24K31F1M
R901045243 DBETE-6X/200G24K31F1V
R901064677 DBETE-6X/200YG24K31A1V
R901103801 DBETE-6X/200YG24K31F1V
R901039512 DBETE-6X/250G24K31A1V
R901045244 DBETE-6X/250G24K31F1V
R901433959 DBETE-6X/250YG24K31A1M
R901064546 DBETE-6X/250YG24K31A1V
R901137745 DBETE-6X/315G24K31A1M
R901029969 DBETE-6X/315G24K31A1V
R901362533 DBETE-6X/315G24K31F1M
R901045246 DBETE-6X/315G24K31F1V
R901194830 DBETE-6X/315YG24K31A1M
R901064278 DBETE-6X/315YG24K31A1V
R901119906 DBETE-6X/315YG24K31F1V
R901029970 DBETE-6X/350G24K31A1V
R901064699 DBETE-6X/350G24K31A1V=LB
R901045248 DBETE-6X/350G24K31F1V
R901197016 DBETE-6X/350YG24K31A1M
R901064548 DBETE-6X/350YG24K31A1V
R901209459 DBETE-6X/350YG24K31F1V
R901198613 DBETE-6X/420G24K31A1V
R901411345 DBETE-6X/420G24K31F1M
R901121103 DBETE-6X/420G24K31F1V
R901425911 DBETE-6X/420YG24K31A1M
R901104476 DBETE-6X/420YG24K31A1V
R901236003 DBETE-6X/420YG24K31F1V
R901029966 DBETE-6X/50G24K31A1V
R901048602 DBETE-6X/50G24K31A1V=DE
R901045240 DBETE-6X/50G24K31F1V
R901064544 DBETE-6X/50YG24K31A1V
R901344569 DBETE-6X=350G24K31F1V
R901322756 DBETE-6X=350YG24K31F1V-320
力士樂REXROTH比例減壓閥,直接操作
R901187998 DBET-1-6X/100G24XEJV
R901188001 DBET-1-6X/200G24XEJV
R901240326 DBET-1-6X/200YG24XEJV
R901188002 DBET-1-6X/250G24XEJV
R901164642 DBET-1-6X/315G24XEJV
R901188005 DBET-1-6X/315YG24XEJV
R901187993 DBET-1-6X/350G24XEJV
R901188004 DBET-1-6X/420G24XEJV
R901187995 DBET-1-6X/50G24XEJV
力士樂REXROTH減壓閥,直接操作,直流電動機(jī)操作DBGT
R901358101 DBGT-2X/700VP2
力士樂REXROTH比例溢流閥,直接操作,上升特性曲線KBPS.8A
R901131559 KBPSB8AA/HCG24K40V-8
R901143246 KBPSB8AA/HCG24K4V
R901066847 KBPSC8AA/HCG12C4V
R901068773 KBPSC8AA/HCG12K40V
R901066358 KBPSC8AA/HCG12K4V
R901088102 KBPSC8AA/HCG24C4V
R901049804 KBPSC8AA/HCG24K4V
R901192299 KBPSC8AA/HCG24K4V-8
R901075092 KBPSF8AA/HCG12K4V
R901369146 KBPSF8AA/HCG24C4V
R901405052 KBPSF8AA/HCG24K40V
R901049817 KBPSF8AA/HCG24K4V
R901192301 KBPSF8AA/HCG24K4V-8
R901092244 KBPSH8AA/HCG12K4V
R901170842 KBPSH8AA/HCG24C4V
R901171171 KBPSH8AA/HCG24C4V-8
R901047003 KBPSH8AA/HCG24K40V
R901049868 KBPSH8AA/HCG24K4V
R901321897 KBPSL8AA/HCG12C4V
R901321903 KBPSL8AA/HCG12K40V
R901260259 KBPSL8AA/HCG12K4V
R901027410 KBPSL8AA/HCG24C4V
R901207215 KBPSL8AA/HCG24C4V-8
R901064393 KBPSL8AA/HCG24K40V
R901027408 KBPSL8AA/HCG24K4V
R901053398 KBPSL8AA/HCG24K4V-8
R901071080 KBPSN8AA/HCG12C4V
R901068772 KBPSN8AA/HCG12K40V
R901149527 KBPSN8AA/HCG12K4V
R901208991 KBPSN8AA/HCG24C4V-8
R901415515 KBPSN8AA/HCG24K40V
R901049877 KBPSN8AA/HCG24K4V
R901048791 KBPSP8AA/HCG12C4V
R901175377 KBPSP8AA/HCG12K40V
R901069317 KBPSP8AA/HCG12K4V
R901069687 KBPSP8AA/HCG24C4V
R901132980 KBPSP8AA/HCG24C4V-8
R901064392 KBPSP8AA/HCG24K40V
R901353142 KBPSP8AA/HCG24K40V-8
R901047007 KBPSP8AA/HCG24K4V
R901053647 KBPSP8AA/HCG24K4V-8
R901286040 KBPSR8AA/HCG12C4V
R901321893 KBPSR8AA/HCG12K40V
R901365431 KBPSR8AA/HCG12K4V
R901073298 KBPSR8AA/HCG24C4V
R901128882 KBPSR8AA/HCG24C4V-8
R901047001 KBPSR8AA/HCG24K40V
R901249051 KBPSR8AA/HCG24K40V-31
R901188580 KBPSR8AA/HCG24K40V-8
R901049860 KBPSR8AA/HCG24K4V
R901250673 KBPSR8AA/HCG24K4V-31
R901192304 KBPSR8AA/HCG24K4V-8
R901367996 KBPST8AA/HCG12K40V
R901197639 KBPST8AA/HCG12K4V
R901045871 KBPST8AA/HCG24K40V
R901127550 KBPST8AA/HCG24K40V-8
R901049865 KBPST8AA/HCG24K4V
R901105195 KBPST8AA/HCG24K4V-8
力士樂REXROTH比例溢流閥,直接操作,遞減特性曲線KBPS.8B
R901268443 KBPSB8BA/HCG12K40V
R901144800 KBPSB8BA/HCG24C4V-8
R901131538 KBPSB8BA/HCG24K40V-8
R901283227 KBPSB8BA/HCG24K4V
R901064003 KBPSC8BA/HCG12C4V
R901066477 KBPSC8BA/HCG12K4V
R901145245 KBPSC8BA/HCG24K40V
R901018586 KBPSC8BA/HCG24K4V
R901269378 KBPSC8BA/HCG24K4V-2
R901192443 KBPSF8BA/HCG12K4V
R901209587 KBPSF8BA/HCG24K40V
R901018587 KBPSF8BA/HCG24K4V
R901426298 KBPSF8BA/HCG24K4V-2
R901336926 KBPSH8BA/HCG12K40V
R901154420 KBPSH8BA/HCG24C4V
R901210101 KBPSH8BA/HCG24K40V
R901049691 KBPSH8BA/HCG24K4V
R901441125 KBPSH8BA/HCG24K4V-2
壓力繼電器用途性能
壓力繼電器是一種將油液的壓力信號轉(zhuǎn)換成電信號的液一電轉(zhuǎn)換元件。當(dāng)油液壓力達(dá)到壓力繼電器的調(diào)定壓力時(shí),能自動接通或斷開電路,使電磁鐵、繼電器、電動機(jī)等電氣元件通電運(yùn)轉(zhuǎn)或斷電停止工作,以實(shí)現(xiàn)對液壓系統(tǒng)工作程序的控制、安全保護(hù)或元件動作的聯(lián)鎖等。任何壓力繼電器都是由壓力一位移轉(zhuǎn)換裝置和微動開關(guān)兩部分組成的,按壓力一位移轉(zhuǎn)換裝置的結(jié)構(gòu)劃分,有柱塞式、彈簧管式、膜片式和波紋管式四類
壓力繼電器是利用液體的壓力來啟閉電氣觸點(diǎn)的液壓電氣轉(zhuǎn)換元件。當(dāng)系統(tǒng)壓力達(dá)到壓力繼電器的調(diào)定值時(shí),發(fā)出電信號,使電氣元件(如電磁鐵、電機(jī)、時(shí)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(shí)現(xiàn)順序動作,或關(guān)閉電動機(jī)使系統(tǒng)停止工作,起安全保護(hù)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的工作原理作一介紹:
當(dāng)從繼電器下端進(jìn)油口3進(jìn)入的液體壓力達(dá)到調(diào)定壓力值時(shí),推動柱塞2上移,此位移通過杠桿放大后推動微動開關(guān)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(yīng)用場合:用于安全保護(hù)、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。
選用標(biāo)準(zhǔn)
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
首先用于安全保護(hù)時(shí),將壓力繼電器設(shè)置在夾緊液壓缸的一端,液壓泵啟動后,首先將工件夾緊,此時(shí)夾緊液壓缸的右腔壓力升高,當(dāng)升高到壓力繼電器的調(diào)定值時(shí),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(jìn)刀切削。在加工期間,壓力繼電器微動開關(guān)的常開觸點(diǎn)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(jìn)刀,從而避免工件未夾緊被切削而出事故。
其實(shí)用于控制執(zhí)行元件的順序動作時(shí),液壓泵啟動后,首先2YA通電,液壓缸左腔進(jìn)油,推動活塞方向右移。當(dāng)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(jìn)入液壓缸的左腔,推動活塞右移。這時(shí)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(yùn)動速度由節(jié)流閥調(diào)節(jié)。
再次用于液壓泵卸荷時(shí),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。
后用于液壓泵的啟閉時(shí),有兩個(gè)液壓泵,高壓小流量泵,低壓大流量泵。當(dāng)活塞快速下降時(shí),兩泵同時(shí)輸出壓力油。當(dāng)液壓缸活塞桿抵住工件開始加壓時(shí),壓力繼電器在壓力油作用下發(fā)出動作,觸動微動開關(guān),將常閉觸點(diǎn)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(shí)減少動力消耗。