現(xiàn)(xian)貨意大利ATOS壓(ya)力繼電器(qi)MAP-320型(xing)的主(zhu)要性能：
意(yi)大(da)利ATOS壓(ya)力繼電器(qi)的主(zhu)要性能有(you)以(yi)下幾個(gè)(ge)方(fang)面。
(1)調(diào)(tiao)壓(ya)範(fàn)(fan)圍(wei)
壓(ya)力繼電器(qi)能(neng)夠(gou)發(fā)出電信(xin)號(hào)的低(di)工(gong)作壓(ya)力和(he)高(gao)工(gong)作壓(ya)力的範(fàn)圍(wei)稱(cheng)為(wei)調(diào)壓(ya)範(fàn)(fan)圍(wei)。
(2)靈(ling)敏(min)度(du)與通(tong)斷調(diào)節(jié)(jie)區(qū)(qu)間(jian)
系統(tǒng)(tong)壓(ya)力升(sheng)高到(dao)壓(ya)力繼電器(qi)的調(diào)定(ding)值時(shí)(shi)，壓(ya)力繼電器(qi)動(dòng)(dong)作接(jie)通(tong)電信(xin)號(hào)的壓(ya)力稱為(wei)開啟(qi)壓(ya)力；系統(tǒng)(tong)壓(ya)力降低(di)，壓(ya)力繼電器(qi)復(fù)位切(qie)斷電信(xin)號(hào)的壓(ya)力稱為(wei)閉合(he)壓(ya)力。開啟(qi)壓(ya)力與閉合(he)壓(ya)力的差值稱(cheng)為(wei)壓(ya)力繼電器(qi)的靈敏(min)度(du)。差值小則靈敏(min)度(du)高。為(wei)避免(mian)系統(tǒng)壓(ya)力波(bo)動(dòng)(dong)時(shí)壓(ya)力繼電器(qi)時(shí)(shi)通(tong)時(shí)斷，要求(qiu)開(kai)啟壓(ya)力與閉合(he)壓(ya)力有(you)壹定(ding)的差值，此(ci)差值若(ruo)可(ke)調(diào)，則稱為(wei)通(tong)斷調(diào)節(jié)(jie)區(qū)(qu)間(jian)。
(3)升(sheng)壓(ya)或(huo)降壓(ya)動(dòng)(dong)作時(shí)(shi)間(jian)
壓(ya)力繼電器(qi)入(ru)口(kou)側(cè)壓(ya)力由卸(xie)荷(he)壓(ya)力升(sheng)至調(diào)(tiao)定壓(ya)力時(shí)，微(wei)動(dòng)(dong)開關(guān)(guan)觸(chu)點(diǎn)(dian)接通(tong)發(fā)出電信(xin)號(hào)的時(shí)間(jian)稱為(wei)升(sheng)壓(ya)動(dòng)(dong)作時(shí)(shi)間(jian)，反之(zhi)，壓(ya)力下降，觸點(diǎn)斷開發(fā)出斷電信(xin)號(hào)的時(shí)間(jian)稱為(wei)降壓(ya)動(dòng)(dong)作時(shí)(shi)間(jian)。
(4)重(zhong)復(fù)精度(du)
在壹定(ding)的調(diào)定(ding)壓(ya)力下，多(duo)次(ci)升(sheng)壓(ya)(或(huo)降壓(ya))過程中，開啟(qi)壓(ya)力或(huo)閉(bi)合壓(ya)力本身(shen)的差值稱(cheng)為(wei)重(zhong)復(fù)精度(du)，差值小則重(zhong)復(fù)精度(du)高。
用(yong)於安(an)全(quan)保(bao)護(hù)時(shí)，將(jiang)意大利ATOS壓(ya)力繼電器(qi)設(shè)(she)置(zhi)在夾(jia)緊液(ye)壓(ya)缸的壹端(duan)，液壓(ya)泵啟(qi)動(dòng)(dong)後，首(shou)先(xian)將(jiang)工(gong)件夾(jia)緊，此(ci)時(shí)(shi)夾(jia)緊液(ye)壓(ya)缸的右腔(qiang)壓(ya)力升(sheng)高，當(dāng)(dang)升(sheng)高到(dao)壓(ya)力繼電器(qi)的調(diào)定(ding)值時(shí)(shi)，壓(ya)力繼電器(qi)動(dòng)(dong)作，發(fā)出電信(xin)號(hào)使(shi)2YA通(tong)電，於(yu)是切削(xue)液壓(ya)缸進(jìn)刀(dao)切(qie)削。在加工(gong)期間(jian)，意大(da)利ATOS壓(ya)力繼電器(qi)微(wei)動(dòng)(dong)開關(guān)(guan)的常開(kai)觸點(diǎn)(dian)始(shi)終閉(bi)合(he)。若工(gong)件沒有(you)夾(jia)緊，壓(ya)力繼電器(qi)2斷開，於(yu)是2YA斷電，切(qie)削(xue)液(ye)壓(ya)缸立即停(ting)止進(jìn)刀(dao)，從(cong)而(er)避免(mian)工(gong)件未(wei)夾(jia)緊被(bei)切(qie)削而(er)出事故(gu)。
其實(shí)用(yong)於控(kong)制執(zhí)行(xing)元(yuan)件的順(shun)序(xu)動(dòng)(dong)作時(shí)(shi)，液(ye)壓(ya)泵啟(qi)動(dòng)(dong)後，首(shou)先(xian)2YA通(tong)電，液(ye)壓(ya)缸左(zuo)腔(qiang)進(jìn)油(you)，推動(dòng)(dong)活(huo)塞(sai)方(fang)向右(you)移(yi)。當(dāng)(dang)碰到(dao)限位(wei)器(qi)(或(huo)死(si)擋鐵(tie))後，系(xi)統(tǒng)壓(ya)力升(sheng)高，意(yi)大利ATOS壓(ya)力繼電器(qi)發(fā)出電信(xin)號(hào)，使(shi)1YA通(tong)電，高(gao)壓(ya)油(you)進(jìn)入(ru)液壓(ya)缸的左(zuo)腔(qiang)，推動(dòng)(dong)活(huo)塞(sai)右(you)移。這時(shí)若(ruo)3YA也通(tong)電，液(ye)壓(ya)缸的活(huo)塞(sai)快(kuai)速(su)右(you)移(yi);若(ruo)3YA斷電，則液壓(ya)缸的活(huo)塞(sai)慢(man)速(su)右(you)移(yi)，其慢速(su)運(yùn)動(dòng)(dong)速(su)度(du)由節(jié)流(liu)閥(fa)調(diào)(tiao)節(jié)(jie)。
再(zai)次(ci)用(yong)於液(ye)壓(ya)泵卸(xie)荷(he)時(shí)，意大利ATOS壓(ya)力繼電器(qi)不是控制液(ye)壓(ya)泵停(ting)止轉(zhuǎn)動(dòng)(dong)，而(er)是控制二(er)位(wei)二通(tong)電磁(ci)閥，將(jiang)液壓(ya)泵5輸(shu)出的壓(ya)力油流(liu)回(hui)油(you)箱，使(shi)其卸荷。
最(zui)後用(yong)於液(ye)壓(ya)泵的啟閉(bi)時(shí)，有(you)兩個(gè)(ge)液壓(ya)泵，高(gao)壓(ya)小流(liu)量(liang)泵，低(di)壓(ya)大(da)流(liu)量(liang)泵。當(dāng)(dang)活(huo)塞(sai)快(kuai)速(su)下(xia)降時(shí)，兩泵同(tong)時(shí)(shi)輸出壓(ya)力油。當(dāng)(dang)液(ye)壓(ya)缸活(huo)塞(sai)桿(gan)抵住工(gong)件開始(shi)加壓(ya)時(shí)(shi)，壓(ya)力繼電器(qi)在(zai)壓(ya)力油作(zuo)用(yong)下發(fā)出動(dòng)(dong)作，觸(chu)動(dòng)(dong)微動(dòng)(dong)開關(guān)(guan)，將(jiang)常閉觸(chu)點(diǎn)斷開，使(shi)液(ye)壓(ya)泵停(ting)轉(zhuǎn)。在加(jia)工(gong)過程中減慢(man)液(ye)壓(ya)缸的速(su)度(du)，同時(shí)減(jian)少(shao)動(dòng)(dong)力消耗(hao)。
意(yi)大(da)利ATOS壓(ya)力繼電器(qi)是利用(yong)液體的壓(ya)力來啟閉電氣(qi)觸(chu)點(diǎn)(dian)的液壓(ya)電氣(qi)轉(zhuǎn)(zhuan)換元(yuan)件。當(dāng)系(xi)統(tǒng)壓(ya)力達(dá)到(dao)壓(ya)力繼電器(qi)的調(diào)定(ding)值時(shí)(shi)，發(fā)出電信(xin)號(hào)，使(shi)電氣(qi)元(yuan)件（如(ru)電磁(ci)鐵(tie)、電機(jī)(ji)、時(shí)(shi)間(jian)繼電器(qi)、電磁(ci)離合(he)器等）動(dòng)(dong)作，使(shi)油(you)路卸(xie)壓(ya)、換向，執(zhí)行(xing)元(yuan)件實(shí)現(xiàn)(xian)順(shun)序(xu)動(dòng)(dong)作，或(huo)關(guān)(guan)閉電動(dòng)(dong)機(jī)使(shi)系(xi)統(tǒng)(tong)停(ting)止工(gong)作，起(qi)安(an)全(quan)保(bao)護(hù)作用(yong)等。
意(yi)大(da)利ATOS壓(ya)力繼電器(qi)是將(jiang)液壓(ya)系(xi)統(tǒng)壓(ya)力轉(zhuǎn)換為(wei)電信(xin)號(hào)的液壓(ya)元(yuan)器(qi)件，屬於(yu)電工(gong)技術(shù)(shu)領(lǐng)域(yu)。其通(tong)過感(gan)知(zhi)流(liu)體壓(ya)力變(bian)化，在達(dá)(da)到(dao)設(shè)定(ding)值時(shí)(shi)觸發(fā)微動(dòng)(dong)開關(guān)(guan)輸(shu)出電信(xin)號(hào)，實(shí)現(xiàn)(xian)安(an)全(quan)保(bao)護(hù)、油路換向或(huo)設(shè)(she)備啟停(ting)等功(gong)能。主(zhu)要結(jié)(jie)構(gòu)(gou)包(bao)括柱塞式、膜(mo)片(pian)式、彈(dan)簧(huang)管式和(he)波(bo)紋管式，其中柱塞(sai)式通(tong)過杠桿(gan)機(jī)(ji)構(gòu)(gou)放(fang)大(da)壓(ya)力位移(yi)驅(qū)動(dòng)(dong)開關(guān)(guan)動(dòng)(dong)作。
產(chǎn)(chan)品(pin)實(shí)(shi)物(wu)如(ru)下(xia)圖所示(shi)：
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