原裝(zhuang)HED8OP型力士(shi)樂繼電(dian)器(qi)底板(ban)安(an)裝(zhuang)

原裝(zhuang)HED8OP型力士(shi)樂繼電(dian)器(qi)底板(ban)安(an)裝(zhuang) 
想知(zhi)道(dao)力士(shi)樂壓(ya)力繼電(dian)器(qi)怎麽(me)選型嗎(ma)？
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力士(shi)樂壓(ya)力繼電(dian)器(qi)調壓(ya)範(fan)圍
壓力繼電(dian)器(qi)能夠發出(chu)電(dian)信號(hao)的低(di)工(gong)作(zuo)壓力和高(gao)工(gong)作(zuo)壓力的範(fan)圍稱為調壓(ya)範(fan)圍。
靈(ling)敏(min)度(du)與(yu)通斷調節區(qu)間(jian)
系統(tong)壓(ya)力升高到(dao)壓力繼電(dian)器(qi)的調(tiao)定值(zhi)時(shi)，REXROTH壓(ya)力繼電(dian)器(qi)動作(zuo)接通(tong)電(dian)信號(hao)的壓(ya)力稱為開啟壓力；系統(tong)壓(ya)力降低(di)，力士(shi)樂壓(ya)力繼電(dian)器(qi)復(fu)位切(qie)斷電(dian)信號(hao)的壓(ya)力稱為閉合壓(ya)力。開啟壓力與閉合壓力的差(cha)值(zhi)稱(cheng)為(wei)壓(ya)力繼電(dian)器(qi)的靈(ling)敏(min)度(du)。差(cha)值(zhi)小(xiao)則靈(ling)敏(min)度(du)高(gao)。為避免系統(tong)壓(ya)力波(bo)動(dong)時(shi)壓(ya)力繼電(dian)器(qi)時通(tong)時斷，要求開啟壓力與閉合壓力有壹定的差(cha)值(zhi)，此(ci)差(cha)值(zhi)若(ruo)可(ke)調(tiao)，則稱(cheng)為(wei)通(tong)斷(duan)調(tiao)節區(qu)間(jian)。
(3)升壓或(huo)降壓(ya)動作(zuo)時間(jian)
REXROTH壓(ya)力繼電(dian)器(qi)入(ru)口側(ce)壓力由(you)卸荷(he)壓力升至(zhi)調(tiao)定壓力時，微動開關(guan)觸點(dian)接通(tong)發出電(dian)信號(hao)的時(shi)間(jian)稱(cheng)為升壓動(dong)作(zuo)時間(jian)，反(fan)之，壓(ya)力下(xia)降，觸點(dian)斷開發(fa)出(chu)斷電(dian)信號(hao)的時(shi)間(jian)稱(cheng)為降(jiang)壓(ya)動(dong)作(zuo)時間(jian)。
(4)重(zhong)復(fu)精(jing)度
在(zai)壹(yi)定(ding)的(de)調(tiao)定壓力下(xia)，多次升壓(或(huo)降壓(ya))過程中(zhong)，開啟壓力或(huo)閉合(he)壓力本身(shen)的差(cha)值(zhi)稱(cheng)為(wei)重(zhong)復(fu)精(jing)度，差(cha)值(zhi)小(xiao)則重(zhong)復(fu)精(jing)度高(gao)。
德(de)國(guo)力士(shi)樂壓(ya)力繼電(dian)器(qi)是利用液(ye)體(ti)的壓(ya)力來啟閉電(dian)氣(qi)觸點(dian)的液(ye)壓電(dian)氣(qi)轉(zhuan)換元件。當(dang)系統(tong)壓(ya)力達(da)到(dao)壓力繼電(dian)器(qi)的調(tiao)定值(zhi)時(shi)，發(fa)出(chu)電(dian)信號(hao)，使電(dian)氣(qi)元(yuan)件(jian)（如(ru)電(dian)磁(ci)鐵、電(dian)機、時(shi)間(jian)繼電(dian)器(qi)、電(dian)磁(ci)離合(he)器(qi)等）動(dong)作(zuo)，使油(you)路(lu)卸壓、換向，執行元件(jian)實現(xian)順序動作(zuo)，或(huo)關(guan)閉電(dian)動機(ji)使系統(tong)停(ting)止(zhi)工(gong)作(zuo)，起安(an)全(quan)保護(hu)作(zuo)用等(deng)
REXROTH壓(ya)力傳感器(qi)，力士(shi)樂壓(ya)力繼電(dian)器(qi)
1.壓力繼電(dian)器(qi)，液(ye)壓術(shu)語(yu)，是(shi)液(ye)壓系統(tong)中(zhong)當(dang)流體(ti)壓力達(da)到(dao)預(yu)定(ding)值(zhi)時(shi)，使(shi)電(dian)接點(dian)動作(zuo)的元(yuan)件(jian)。
2.是(shi)將(jiang)壓(ya)力轉(zhuan)換成(cheng)電(dian)信號(hao)的液(ye)壓元(yuan)器(qi)件，客戶根(gen)據(ju)自(zi)身(shen)的壓力設(she)計需(xu)要，通(tong)過(guo)調節壓力繼電(dian)器(qi)，實現(xian)在(zai)某(mou)壹(yi)設(she)定的壓(ya)力時，輸(shu)出壹個(ge)電(dian)信號(hao)的功(gong)能。壓(ya)力繼電(dian)器(qi)是利用液(ye)體(ti)的壓(ya)力來啟閉電(dian)氣(qi)觸點(dian)的液(ye)壓電(dian)氣(qi)轉(zhuan)換元件。當(dang)系統(tong)壓(ya)力達(da)到(dao)壓力繼電(dian)器(qi)的調(tiao)定值(zhi)時(shi)，發(fa)出(chu)電(dian)信號(hao)，使電(dian)氣(qi)元(yuan)件(jian)（如(ru)電(dian)磁(ci)鐵、電(dian)機、時(shi)間(jian)繼電(dian)器(qi)、電(dian)磁(ci)離合(he)器(qi)等）動(dong)作(zuo)，使油(you)路(lu)卸壓、換向，執行元件(jian)實現(xian)順序動作(zuo)，或(huo)關(guan)閉電(dian)動機(ji)使系統(tong)停(ting)止(zhi)工(gong)作(zuo)，起安(an)全(quan)保護(hu)作(zuo)用等(deng)。
壓(ya)力繼電(dian)器(qi)有柱(zhu)塞式(shi)、膜片(pian)式(shi)、彈(dan)簧(huang)管式(shi)和波(bo)紋(wen)管(guan)式(shi)四(si)種結構(gou)形(xing)式(shi)。下(xia)面對柱(zhu)塞式(shi)壓力繼電(dian)器(qi)（見圖(tu)）的工(gong)作(zuo)原理作(zuo)壹介(jie)紹(shao)：
當(dang)從繼電(dian)器(qi)下(xia)端進油(you)口3進(jin)入(ru)的液(ye)體(ti)壓力達(da)到(dao)調定(ding)壓(ya)力值(zhi)時(shi)，推(tui)動(dong)柱(zhu)塞2上(shang)移(yi)，此(ci)位移通(tong)過(guo)杠(gang)桿放大後推動微(wei)動(dong)開關(guan)4動作(zuo)。改變(bian)彈(dan)簧(huang)1的壓縮量，可(ke)以調節(jie)繼電(dian)器(qi)的動(dong)作(zuo)壓力。
應(ying)用場(chang)合(he)：用於安(an)全(quan)保護(hu)、控(kong)制(zhi)執行元件(jian)的(de)順序動作(zuo)、用於(yu)泵(beng)的啟閉、用於(yu)泵(beng)的卸荷(he)。
註意： 壓力繼電(dian)器(qi)必須(xu)放在(zai)壓(ya)力有明顯變(bian)化的(de)地方(fang)才(cai)能輸(shu)出電(dian)信號(hao)。若(ruo)將(jiang)壓(ya)力繼電(dian)器(qi)放在(zai)回油(you)路(lu)上，由(you)於(yu)回油(you)路(lu)直接接回油(you)箱，壓力也(ye)沒有(you)變(bian)化，所(suo)以壓力繼電(dian)器(qi)也(ye)不會(hui)工(gong)作(zuo)。
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原裝(zhuang)HED8OP型力士(shi)樂繼電(dian)器(qi)底板(ban)安(an)裝(zhuang)
REXROTH壓力繼電(dian)器(qi)HED8O系列型號(hao)表示方(fang)法如(ru)下(xia);力士(shi)樂壓(ya)力繼電(dian)器(qi)HED8OP型使(shi)用(yong)註意事項(xiang)
(1)根(gen)據(ju)具體(ti)用途(tu)和系統(tong)壓(ya)力選用適當(dang)結構(gou)形(xing)式(shi)的壓力繼電(dian)器(qi)，為了保證壓力繼電(dian)器(qi)動作(zuo)靈(ling)敏(min)，避(bi)免(mian)低(di)壓系統(tong)選(xuan)用(yong)高(gao)壓壓力繼電(dian)器(qi)。
(2)應(ying)按照(zhao)制(zhi)造(zao)廠(chang)的(de)要求，正(zheng)確(que)安(an)裝(zhuang)壓力繼電(dian)器(qi)。
(3)按照(zhao)所(suo)要求的(de)電(dian)源(yuan)形(xing)式(shi)和具體(ti)要求對(dui)壓(ya)力繼電(dian)器(qi)中(zhong)的(de)微動(dong)開關(guan)進行接線。
(4)壓力繼電(dian)器(qi)調整(zheng)完畢(bi)後，應(ying)鎖(suo)定(ding)或(huo)固(gu)定其位(wei)置．以免受(shou)振(zhen)動後變(bian)動。
(5)壓力繼電(dian)器(qi)的泄(xie)油腔(qiang)應(ying)直接接回油(you)箱，否(fou)則會(hui)使(shi)泄(xie)油(you)口背(bei)壓(ya)過高(gao)，影(ying)響其靈(ling)敏(min)度(du)。