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首頁 > 技術支持 > VICKERS電磁換向閥工作技術特征

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VICKERS電磁換向閥工作技術特征
更新時間:2024-04-17   點擊次數:122次

VICKERS電(dian)(dian)磁(ci)閥(fa)產生的(de)(de)先導(dao)油控制(zhi)(zhi)主(zhu)閥(fa)門閥(fa)桿(gan)的(de)(de)運(yun)動(dong),使工作泵(beng)上(shang)(shang)的(de)(de)油進入致動(dong)器缸,使吊(diao)桿(gan)上(shang)(shang)升(sheng)。比(bi)例(li)先導(dao)閥(fa)的(de)(de)輸(shu)出壓力越(yue)大(da),主(zhu)閥(fa)閥(fa)芯的(de)(de)位移(yi)越(yue)大(da),主(zhu)方向閥(fa)通過(guo)的(de)(de)流量越(yue)大(da),動(dong)臂(bei)上(shang)(shang)升(sheng)的(de)(de)速度(du)就越(yue)快。操縱手(shou)柄(bing)(bing)拉動(dong)限(xian)(xian)(xian)制(zhi)(zhi)位置(zhi)(zhi)(zhi)時,手(shou)柄(bing)(bing)的(de)(de)限(xian)(xian)(xian)制(zhi)(zhi)電(dian)(dian)磁(ci)鐵將(jiang)(jiang)打開,手(shou)柄(bing)(bing)將(jiang)(jiang)從(cong)限(xian)(xian)(xian)制(zhi)(zhi)位置(zhi)(zhi)(zhi)吸收。擺臂(bei)以(yi)較大(da)速度(du)上(shang)(shang)升(sheng),上(shang)(shang)升(sheng)到被擺臂(bei)上(shang)(shang)極(ji)限(xian)(xian)(xian)開關限(xian)(xian)(xian)制(zhi)(zhi)的(de)(de)位置(zhi)(zhi)(zhi),手(shou)柄(bing)(bing)限(xian)(xian)(xian)位電(dian)(dian)磁(ci)鐵的(de)(de)電(dian)(dian)源(yuan)將(jiang)(jiang)關閉,手(shou)柄(bing)(bing)將(jiang)(jiang)自動(dong)恢(hui)復到中(zhong)(zhong)心,擺臂(bei)可以(yi)保持在(zai)有限(xian)(xian)(xian)的(de)(de)位置(zhi)(zhi)(zhi)。吊(diao)桿(gan)上(shang)(shang)升(sheng)時,如果胳(ge)膊需(xu)要停留在(zai)特定位置(zhi)(zhi)(zhi),則需(xu)要將(jiang)(jiang)操縱手(shou)柄(bing)(bing)返回中(zhong)(zhong)心。

威(wei)格(ge)士(shi)電磁閥(fa)(fa)出來的(de)先(xian)導油(you)(you)控(kong)制主換(huan)向(xiang)閥(fa)(fa)閥(fa)(fa)芯的(de)移(yi)動,使(shi)工作泵的(de)來油(you)(you)進(jin)入動臂(bei)(bei)油(you)(you)缸實現(xian)(xian)動臂(bei)(bei)上(shang)升(sheng)(sheng)(sheng)。另一方面,在(zai)伺(si)服(fu)系(xi)統中(zhong)傳(chuan)遞信號和校(xiao)正特性(xing)(xing)時多用電氣元(yuan)件。因此,現(xian)(xian)代(dai)高性(xing)(xing)能的(de)伺(si)服(fu)系(xi)統也都采用電液(ye)方式(shi),伺(si)服(fu)閥(fa)(fa)就是這種(zhong)系(xi)統的(de)必需(xu)元(yuan)件。比例先(xian)導減(jian)壓閥(fa)(fa)的(de)輸出壓力(li)越(yue)(yue)大,控(kong)制主換(huan)向(xiang)閥(fa)(fa)閥(fa)(fa)芯的(de)位(wei)移(yi)越(yue)(yue)大,主換(huan)向(xiang)閥(fa)(fa)通(tong)過(guo)(guo)的(de)流量越(yue)(yue)大,動臂(bei)(bei)上(shang)升(sheng)(sheng)(sheng)的(de)速度(du)越(yue)(yue)快。當操(cao)作手(shou)柄拉限(xian)位(wei)置(zhi)時,手(shou)柄中(zhong)的(de)限(xian)位(wei)電磁鐵通(tong)電,手(shou)柄在(zai)極(ji)限(xian)位(wei)置(zhi)被(bei)吸(xi)合。動臂(bei)(bei)以大的(de)速度(du)上(shang)升(sheng)(sheng)(sheng),當升(sheng)(sheng)(sheng)至(zhi)動臂(bei)(bei)上(shang)位(wei)限(xian)位(wei)開(kai)關所限(xian)定的(de)位(wei)置(zhi)時,操(cao)作手(shou)柄限(xian)位(wei)電磁鐵斷電,手(shou)柄自動恢復到(dao)中(zhong)位(wei),動臂(bei)(bei)就可保持在(zai)所限(xian)定的(de)位(wei)置(zhi)。在(zai)動臂(bei)(bei)上(shang)升(sheng)(sheng)(sheng)的(de)過(guo)(guo)程(cheng)中(zhong),若需(xu)要動臂(bei)(bei)在(zai)某一位(wei)置(zhi)停留,則需(xu)將操(cao)作手(shou)柄退回中(zhong)位(wei)。

威格士KCG-3系列溢流(liu)閥(fa)(fa)(fa)(fa)的(de)結(jie)構組(zu)成它由閥(fa)(fa)(fa)(fa)體、閥(fa)(fa)(fa)(fa)芯、彈簧和調(diao)節螺釘組(zu)成。圖中(zhong)(a)型(xing)是球形(xing)(xing)閥(fa)(fa)(fa)(fa),(b)型(xing)是錐(zhui)形(xing)(xing)閥(fa)(fa)(fa)(fa)。球形(xing)(xing)閥(fa)(fa)(fa)(fa)用(yong)在低壓(ya)、小(xiao)流(liu)量液壓(ya)系統中(zhong);錐(zhui)形(xing)(xing)閥(fa)(fa)(fa)(fa)用(yong)在較高壓(ya)小(xiao)流(liu)量液壓(ya)系統中(zhong)。錐(zhui)形(xing)(xing)閥(fa)(fa)(fa)(fa)的(de)閥(fa)(fa)(fa)(fa)芯密封效果好于球形(xing)(xing)閥(fa)(fa)(fa)(fa)。
   威格士KCG-3系(xi)(xi)(xi)(xi)列(lie)溢(yi)流(liu)(liu)閥(fa)(fa)(fa)工(gong)(gong)作(zuo)(zuo)時,是利用(yong)彈(dan)(dan)簧的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)來調(diao)節、控制(zhi)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)大(da)小(xiao)。從圖3-50中可(ke)以看到(dao):當液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)小(xiao)于工(gong)(gong)作(zuo)(zuo)需要壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)時,閥(fa)(fa)(fa)芯(xin)被彈(dan)(dan)簧壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)在液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)流(liu)(liu)入口(kou),當液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)超過其工(gong)(gong)作(zuo)(zuo)允許(xu)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)即(ji)大(da)于彈(dan)(dan)簧壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)時,閥(fa)(fa)(fa)芯(xin)被液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)頂起,液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)流(liu)(liu)入,從圖示方向右側口(kou)流(liu)(liu)出(chu),回油(you)(you)(you)(you)箱。液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)越(yue)大(da),閥(fa)(fa)(fa)芯(xin)被液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)頂起得(de)越(yue)髙,7a64e78988e69d83330液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)經威格士KCG-3系(xi)(xi)(xi)(xi)列(lie)溢(yi)流(liu)(liu)閥(fa)(fa)(fa)流(liu)(liu)回油(you)(you)(you)(you)箱的(de)(de)(de)流(liu)(liu)量(liang)越(yue)大(da)o如過液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)小(xiao)于或等于彈(dan)(dan)簧壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li),則閥(fa)(fa)(fa)芯(xin)落下,封住液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)進口(kou)。由(you)于油(you)(you)(you)(you)泵輸出(chu)的(de)(de)(de)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)固定,而工(gong)(gong)作(zuo)(zuo)油(you)(you)(you)(you)缸(gang)(gang)用(yong)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)總要比油(you)(you)(you)(you)泵輸出(chu)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)小(xiao),所以正常(chang)工(gong)(gong)作(zuo)(zuo)時總會(hui)有一些液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)從威格士KCG-3系(xi)(xi)(xi)(xi)列(lie)溢(yi)流(liu)(liu)閥(fa)(fa)(fa)處流(liu)(liu)回油(you)(you)(you)(you)箱,以保持液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)缸(gang)(gang)的(de)(de)(de)工(gong)(gong)作(zuo)(zuo)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)平(ping)衡、正常(chang)工(gong)(gong)作(zuo)(zuo)。由(you)此可(ke)見(jian),威格士KCG-3系(xi)(xi)(xi)(xi)列(lie)溢(yi)流(liu)(liu)閥(fa)(fa)(fa)的(de)(de)(de)作(zuo)(zuo)用(yong)是能夠防止液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)系(xi)(xi)(xi)(xi)統中的(de)(de)(de)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)超出(chu)額(e)定負(fu)荷,起安(an)全(quan)保護(hu)作(zuo)(zuo)用(yong)。另外,溢(yi)流(liu)(liu)閥(fa)(fa)(fa)與節流(liu)(liu)閥(fa)(fa)(fa)配合(he),節流(liu)(liu)閥(fa)(fa)(fa)調(diao)節液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)(you)的(de)(de)(de)流(liu)(liu)量(liang)大(da)小(xiao),可(ke)控制(zhi)活塞的(de)(de)(de)移動速(su)度。

VICKERS電磁閥安(an)裝注意:
1、安裝(zhuang)時(shi)應注意閥(fa)(fa)體上(shang)箭頭(tou)應與(yu)介質流向一致。不可(ke)裝(zhuang)在有直(zhi)接滴水或濺水的地方。電磁閥(fa)(fa)應垂直(zhi)向上(shang)安裝(zhuang);
2、電磁閥應(ying)保證在電源電壓(ya)為額定電壓(ya)的(de)15%-10%波動范圍(wei)內正(zheng)常工作;
3、電(dian)磁閥安裝后,管道中不得有反向壓差。并需通電(dian)數次,使(shi)之(zhi)適溫后方可正式(shi)投入(ru)使(shi)用;
4、電(dian)磁(ci)閥安裝前應*清洗管道。通入的介質應無雜(za)質。閥前裝過(guo)濾器(qi);
5、當電磁(ci)閥發生故障或(huo)清洗時,為(wei)保證系統繼續運行,應(ying)安裝(zhuang)旁(pang)路裝(zhuang)置。

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