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        1. 產(chǎn)(chan)品目錄
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          R900926054型(xing)德(de)國(guo)REXROTH溢(yi)流閥(fa)的產(chǎn)(chan)品內(nèi)(nei)容
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              R900926054型(xing)德(de)國(guo)REXROTH溢(yi)流閥(fa)的產(chǎn)(chan)品內(nèi)(nei)容:

              德(de)國(guo)REXROTH溢(yi)流閥(fa)是什(shen)麼呢(ne)?很(hen)多(duo)用戶(hu)不(bu)了解這(zhe)個(gè)(ge)問(wen)題。其(qi)實(shí)(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)是壹種(zhong)液壓壓(ya)力控(kong)制(zhi)閥(fa),在液(ye)壓(ya)設(shè)(she)備(bei)中(zhong)主(zhu)要(yao)起定壓(ya)溢流穩(wěn)(wen)壓(ya),系(xi)統(tǒng)卸荷和安(an)全(quan)保護(hù)(hu)作用。德(de)國(guo)REXROTH溢(yi)流閥(fa)在裝配(pei)或(huo)使(shi)用中(zhong),由(you)於(yu)O形密封(feng)圈(quan)、組合(he)密(mi)封(feng)圈(quan)的損壞(huai),或(huo)者(zhe)安(an)裝螺(luo)釘(ding)、管接頭的松(song)動(dòng)(dong),都(dou)可(ke)能造成(cheng)不(bu)應(yīng)有的外泄漏(lou)。德(de)國(guo)REXROTH溢(yi)流閥(fa)分為(wei)先(xian)導(dǎo)(dao)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)還有(you)直動(dòng)(dong)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)。

          先(xian)導(dǎo)(dao)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)中(zhong)的主(zhu)閥(fa)芯因兩(liang)端(duan)均受油(you)壓(ya)作用,主(zhu)閥(fa)彈簧只(zhi)需(xu)很(hen)小(xiao)的剛度(du),當(dāng)溢(yi)流量(liang)變化(hua)引(yin)起彈簧壓(ya)縮(suo)量(liang)變化(hua)時(shí)(shi),進(jìn)(jin)油(you)口的壓力變化(hua)不(bu)大,故(gu)先(xian)導(dǎo)(dao)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)恒(heng)定(ding)壓(ya)力(li)的性能優(yōu)(you)於(yu)直動(dòng)(dong)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)。

          直動(dòng)(dong)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)壹般(ban)只(zhi)能用於(yu)低(di)壓(ya)小(xiao)流量(liang)工(gong)況,因控(kong)制(zhi)較高(gao)壓(ya)力(li)或(huo)較(jiao)大(da)流量(liang)時(shí)(shi),需(xu)要(yao)剛度(du)較大(da)的硬彈簧,不(bu)但(dan)手(shou)動(dòng)(dong)調(diào)(tiao)節(jié)(jie)困(kun)難,而且(qie)閥(fa)口開(kai)度(du)略(lve)有(you)變化(hua),便(bian)引(yin)起較大(da)的壓力波動(dòng)(dong)。系(xi)統(tǒng)壓力(li)較高(gao)時(shí)(shi)就(jiu)需(xu)要(yao)采用先(xian)導(dǎo)(dao)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)。

              1、德(de)國(guo)REXROTH溢(yi)流閥(fa)功能

          德(de)國(guo)REXROTH溢(yi)流閥(fa)是壹種(zhong)液壓壓(ya)力控(kong)制(zhi)閥(fa),在液(ye)壓(ya)設(shè)(she)備(bei)中(zhong)主(zhu)要(yao)起定壓(ya)溢流,穩(wěn)(wen)壓(ya),系(xi)統(tǒng)卸荷和安(an)全(quan)保護(hù)(hu)作用。德(de)國(guo)REXROTH溢(yi)流閥(fa)在裝配(pei)或(huo)使(shi)用中(zhong),由(you)於(yu)O形密封(feng)圈(quan)、組合(he)密(mi)封(feng)圈(quan)的損壞(huai),或(huo)者(zhe)安(an)裝螺(luo)釘(ding)、管接頭的松(song)動(dòng)(dong),都(dou)可(ke)能造成(cheng)不(bu)應(yīng)有的外泄漏(lou)。

              2、德(de)國(guo)REXROTH溢(yi)流閥(fa)作用

          (1)定(ding)壓(ya)溢流作用

          在(zai)定(ding)量(liang)泵(beng)節(jié)(jie)流調(diào)(tiao)節(jié)(jie)系(xi)統(tǒng)中(zhong),定(ding)量(liang)泵(beng)提(ti)供(gong)的是恒(heng)定(ding)流量(liang)。當(dāng)系(xi)統(tǒng)壓力(li)增(zeng)大(da)時(shí)(shi),會(huì)(hui)使(shi)流量(liang)需(xu)求(qiu)減(jian)小。此時(shí)德(de)國(guo)REXROTH溢(yi)流閥(fa)開(kai)啟,使(shi)多(duo)余流量(liang)溢(yi)回(hui)油(you)箱,保證德(de)國(guo)REXROTH溢(yi)流閥(fa)進(jìn)(jin)口壓(ya)力(li),即(ji)泵(beng)出(chu)口壓(ya)力(li)恒(heng)定(ding)。

          (2)穩(wěn)(wen)壓(ya)作用

          德(de)國(guo)REXROTH溢(yi)流閥(fa)串聯(lián)在(zai)回油(you)路上(shang),德(de)國(guo)REXROTH溢(yi)流閥(fa)產(chǎn)(chan)生背(bei)壓(ya),運(yùn)(yun)動(dòng)(dong)部(bu)件(jian)平穩(wěn)(wen)性(xing)增(zeng)加(jia)。

          (3)系(xi)統(tǒng)卸荷作用

          在(zai)德(de)國(guo)REXROTH溢(yi)流閥(fa)的遙控口串接溢(yi)小流量(liang)的電磁(ci)閥(fa),當(dāng)電(dian)磁(ci)鐵(tie)通電(dian)時(shí),德(de)國(guo)REXROTH溢(yi)流閥(fa)的遙控口通(tong)油(you)箱,此時(shí)液壓(ya)泵(beng)卸荷。德(de)國(guo)REXROTH溢(yi)流閥(fa)此時(shí)作為(wei)卸荷閥(fa)使(shi)用。

          (4)安(an)全(quan)保護(hù)(hu)作用

          系(xi)統(tǒng)正(zheng)常工(gong)作時(shí)(shi),閥(fa)門關(guān)閉。只有負(fù)(fu)載(zai)超過規(guī)(gui)定的極時(shí)(shi)開(kai)啟溢(yi)流,進(jìn)(jin)行(xing)過載(zai)保護(hù)(hu),使(shi)系(xi)統(tǒng)壓力(li)不再增(zeng)加(jia)。

          (5)實(shí)(shi)際應(yīng)用中(zhong)壹般(ban)有(you)

          作卸荷閥(fa)用,作遠(yuǎn)(yuan)程調(diào)(tiao)壓閥(fa),作高(gao)低(di)壓(ya)多(duo)級(jí)(ji)控制(zhi)閥(fa),作順(shun)序(xu)閥(fa),用於(yu)產(chǎn)(chan)生背(bei)壓(ya)。

          (6)德(de)國(guo)REXROTH溢(yi)流閥(fa)壹般(ban)有(you)兩(liang)種(zhong)結(jié)構(gòu)

          ①直動(dòng)(dong)型(xing)德(de)國(guo)REXROTH溢(yi)流閥(fa)

          ②先(xian)導(dǎo)(dao)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)

          (7)對(duì)(dui)德(de)國(guo)REXROTH溢(yi)流閥(fa)的主(zhu)要(yao)要(yao)求

          調(diào)(tiao)壓範(fàn)圍(wei)大調(diào)(tiao)壓(ya)偏(pian)差(cha)小,壓(ya)力(li)振擺(bai)小,動(dòng)(dong)作靈(ling)敏(min),過載(zai)能力大(da),噪(zao)聲(sheng)小。

              很(hen)多(duo)用戶(hu)不(bu)了解德(de)國(guo)REXROTH溢(yi)流閥(fa)工作原(yuan)理。下(xia)面(mian)小編(bian)就(jiu)來簡單(dan)介紹(shao)不(bu)同的德(de)國(guo)REXROTH溢(yi)流閥(fa)工作原(yuan)理。有需(xu)要(yao)的用戶(hu)們來簡單(dan)的了解壹下(xia)吧(ba)!

          先(xian)導(dǎo)(dao)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)是由(you)先(xian)導(dǎo)(dao)閥(fa)和主(zhu)閥(fa)組成(cheng)。先(xian)導(dǎo)(dao)閥(fa)用以控(kong)制(zhi)主(zhu)閥(fa)芯兩端(duan)的壓差,主(zhu)閥(fa)芯用於(yu)控制(zhi)主(zhu)油(you)口的溢流。目前(qian)應(yīng)用廣泛(fan)的先(xian)導(dǎo)(dao)式(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)按閥(fa)芯結(jié)構(gòu)形式(shi),可(ke)分為(wei)三節(jié)(jie)同心(xin)式和二節(jié)(jie)同心(xin)式兩種(zhong)結(jié)構(gòu)。

          在定(ding)量(liang)泵(beng)節(jié)(jie)流調(diào)(tiao)節(jié)(jie)系(xi)統(tǒng)中(zhong),定(ding)量(liang)泵(beng)提(ti)供(gong)的是恒(heng)定(ding)流量(liang)。當(dāng)系(xi)統(tǒng)壓力(li)增(zeng)大(da)時(shí)(shi),會(huì)(hui)使(shi)流量(liang)需(xu)求(qiu)減(jian)小。此時(shí)德(de)國(guo)REXROTH溢(yi)流閥(fa)開(kai)啟,使(shi)多(duo)余流量(liang)溢(yi)回(hui)油(you)箱,保證德(de)國(guo)REXROTH溢(yi)流閥(fa)進(jìn)(jin)口壓(ya)力(li),即(ji)泵(beng)出(chu)口壓(ya)力(li)恒(heng)定(ding)(閥(fa)口常(chang)隨(sui)壓力波(bo)動(dòng)(dong)開(kai)啟)。安(an)全(quan)保護(hù)(hu)作用:系(xi)統(tǒng)正(zheng)常工(gong)作時(shí)(shi),閥(fa)門關(guān)閉。只有負(fù)(fu)載(zai)超過規(guī)(gui)定的極限(系(xi)統(tǒng)壓力(li)超過調(diào)(tiao)定壓力)時(shí)開(kai)啟溢(yi)流,進(jìn)(jin)行(xing)過載(zai)保護(hù)(hu),使(shi)系(xi)統(tǒng)壓力(li)不再增(zeng)加(jia)(通(tong)常使(shi)德(de)國(guo)REXROTH溢(yi)流閥(fa)的調(diào)定壓力比系(xi)統(tǒng)*工作壓(ya)力(li)高(gao)10%~20%)。

              產(chǎn)(chan)品實(shí)(shi)物(wu)如(ru)下(xia)圖(tu)所示:


          上(shang)壹篇 三個(gè)(ge)點(diǎn)(dian)來介紹(shao)R900902940型(xing)德(de)國(guo)REXROTH液(ye)壓(ya)閥(fa)的應(yīng)用及維(wei)護(hù)(hu) 下(xia)壹篇 PK6524型(xing)德(de)國(guo)IFM壓(ya)力(li)傳感器(qi)的故障(zhang)與(yu)檢(jian)測(ce)
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          R900932137包郵銷(xiao)售(shou)德(de)國(guo)REXROTH力(li)士樂(le)齒(chi)輪(lun)泵(beng)
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