一、行程開關有什么作用
行程開關是一種常用的小電流主令電器,是一種根據運動部件的行程位置而切換電路工作狀態的控制電器,它的作用主要是通過改變電動機的運動狀態,從而控制機械動作或用于程序控制,并實現電路間的切換。在電氣控制系統中,行程開關的作用是實現順序控制、定位控制和位置狀態的檢測,用于控制機械設備的行程及限位保護,因此也叫限位開關。行程開關在很多生活電器以及工業領域都有廣泛的應用,如果您需要購買行程開關,可以先來看看行程開關十大品牌。
二、行程開關符號是什么
行(xing)程開關(guan)是根據運(yun)動(dong)(dong)部(bu)件(jian)位置而切換電路的自動(dong)(dong)控(kong)制(zhi)電器(qi),廣泛用(yong)(yong)于各(ge)類機床和起重機械,用(yong)(yong)以控(kong)制(zhi)其行(xing)程、進行(xing)終端限(xian)位保護(hu),電工常用(yong)(yong)各(ge)種符號來表示開關(guan)等電器(qi)元件(jian),在電路圖上(shang),行(xing)程開關(guan)用(yong)(yong)SQ表示,有的也會用(yong)(yong)ST表示,文字(zi)符號SQ是國(guo)家標(biao)準(zhun),ST是國(guo)際標(biao)準(zhun),都是對的,但是國(guo)內一般情況下(xia)都是用(yong)(yong)SQ。
三、行程開關工作原理
行(xing)(xing)程(cheng)(cheng)開(kai)關是(shi)主令電(dian)(dian)器里的一(yi)種,其動作原理和按鈕(niu)沒有什么(me)差別,主要區別是(shi):它不是(shi)用(yong)(yong)手進行(xing)(xing)按壓(ya)操(cao)作而(er)是(shi)用(yong)(yong)機械(xie)(xie)設(she)備(bei)的一(yi)些運(yun)(yun)(yun)動部件與它的傳動部位(wei)發生碰(peng)撞,來(lai)促使行(xing)(xing)程(cheng)(cheng)開(kai)關的觸(chu)頭(tou)動作的(常(chang)(chang)開(kai)觸(chu)點閉合,常(chang)(chang)閉觸(chu)點斷(duan)開(kai)),能夠達(da)到分(fen)斷(duan)或(huo)者(zhe)切換電(dian)(dian)路的目的。行(xing)(xing)程(cheng)(cheng)開(kai)關工作時,利用(yong)(yong)內部的元件碰(peng)撞,達(da)到開(kai)啟電(dian)(dian)路或(huo)關閉電(dian)(dian)路的功能。正常(chang)(chang)情況下,行(xing)(xing)程(cheng)(cheng)開(kai)關一(yi)旦開(kai)啟,便會給機械(xie)(xie)運(yun)(yun)(yun)動添加上一(yi)個運(yun)(yun)(yun)動的軌跡,只要機械(xie)(xie)達(da)到設(she)定的位(wei)置,便會自(zi)動停止運(yun)(yun)(yun)轉,或(huo)是(shi)改變運(yun)(yun)(yun)動狀態,從而(er)達(da)到開(kai)關的目的。
四、行程開關和限位開關有什么區別
1、定(ding)義區(qu)別(bie)(bie)(bie):行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)一(yi)般(ban)指一(yi)種(zhong)(zhong)小電(dian)(dian)(dian)流主(zhu)令(ling)電(dian)(dian)(dian)器(qi),當生(sheng)產(chan)機(ji)械(xie)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)部件發生(sheng)碰撞時(shi)(shi),通(tong)過觸(chu)頭動(dong)(dong)(dong)(dong)(dong)作(zuo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)發生(sheng),來(lai)(lai)實現分斷或接通(tong)電(dian)(dian)(dian)路(lu),從(cong)而達到(dao)控(kong)制(zhi)電(dian)(dian)(dian)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)可(ke)(ke)以(yi)用(yong)(yong)(yong)(yong)來(lai)(lai)限(xian)(xian)(xian)制(zhi)機(ji)械(xie)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)形成(cheng)和(he)(he)(he)(he)位(wei)(wei)置。讓運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)機(ji)械(xie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)形成(cheng)或位(wei)(wei)置反向運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)、自動(dong)(dong)(dong)(dong)(dong)停止(zhi)(zhi)、變速(su)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)等(deng)(deng)(deng)等(deng)(deng)(deng)。限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)可(ke)(ke)以(yi)分為接觸(chu)式(shi)(shi)(shi)和(he)(he)(he)(he)非(fei)接觸(chu)式(shi)(shi)(shi)兩種(zhong)(zhong),它是(shi)(shi)一(yi)種(zhong)(zhong)可(ke)(ke)以(yi)用(yong)(yong)(yong)(yong)來(lai)(lai)限(xian)(xian)(xian)定(ding)機(ji)械(xie)設備(bei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)極(ji)限(xian)(xian)(xian)位(wei)(wei)置的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)器(qi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)。限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)更加(jia)直觀,它對機(ji)械(xie)有(you)一(yi)定(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)限(xian)(xian)(xian)制(zhi)作(zuo)用(yong)(yong)(yong)(yong),可(ke)(ke)以(yi)用(yong)(yong)(yong)(yong)來(lai)(lai)保護開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)不受損(sun)壞(huai)。非(fei)接觸(chu)式(shi)(shi)(shi)限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)有(you)很多種(zhong)(zhong),比如干簧(huang)管式(shi)(shi)(shi)、光電(dian)(dian)(dian)式(shi)(shi)(shi)、感應(ying)式(shi)(shi)(shi)等(deng)(deng)(deng)等(deng)(deng)(deng)。2、功(gong)能(neng)(neng)區(qu)別(bie)(bie)(bie):行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)可(ke)(ke)以(yi)安裝(zhuang)在(zai)(zai)(zai)(zai)靜止(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)物體上(shang)面(mian),比如門框或固定(ding)架(jia)等(deng)(deng)(deng)等(deng)(deng)(deng)。它也(ye)可(ke)(ke)以(yi)安裝(zhuang)在(zai)(zai)(zai)(zai)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)物體上(shang)面(mian),比如平(ping)時(shi)(shi)生(sheng)活中使(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)門。當運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)物體接近靜止(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)物體時(shi)(shi),開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)接點(dian)(dian)會(hui)(hui)(hui)引起(qi)閉合或斷開(kai)(kai)(kai)(kai),從(cong)而控(kong)制(zhi)電(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)動(dong)(dong)(dong)(dong)(dong)作(zuo)。而且行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)靈敏度比較(jiao)高(gao)(gao),體積也(ye)比較(jiao)小,還具有(you)防(fang)腐(fu)蝕性和(he)(he)(he)(he)耐用(yong)(yong)(yong)(yong)性等(deng)(deng)(deng)諸(zhu)多特點(dian)(dian)。最(zui)(zui)(zui)重要(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi),行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)即便是(shi)(shi)在(zai)(zai)(zai)(zai)水(shui)里,也(ye)能(neng)(neng)正常工作(zuo)。不僅(jin)價格實惠(hui),而且使(shi)用(yong)(yong)(yong)(yong)壽命長(chang)。限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)分為極(ji)限(xian)(xian)(xian)限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)和(he)(he)(he)(he)工作(zuo)限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)。工作(zuo)限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)可(ke)(ke)以(yi)用(yong)(yong)(yong)(yong)來(lai)(lai)給(gei)出(chu)機(ji)構動(dong)(dong)(dong)(dong)(dong)作(zuo)到(dao)位(wei)(wei)信號(hao)(hao),一(yi)般(ban)安裝(zhuang)在(zai)(zai)(zai)(zai)機(ji)構需要(yao)改變工況的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)位(wei)(wei)置上(shang),在(zai)(zai)(zai)(zai)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)動(dong)(dong)(dong)(dong)(dong)作(zuo)發出(chu)后給(gei)出(chu)信號(hao)(hao),然后再進行(xing)(xing)(xing)別(bie)(bie)(bie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)動(dong)(dong)(dong)(dong)(dong)作(zuo)。極(ji)限(xian)(xian)(xian)限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)可(ke)(ke)以(yi)防(fang)止(zhi)(zhi)機(ji)構動(dong)(dong)(dong)(dong)(dong)作(zuo)超出(chu)設計范圍,發生(sheng)意外事(shi)故。一(yi)般(ban)安裝(zhuang)在(zai)(zai)(zai)(zai)器(qi)械(xie)動(dong)(dong)(dong)(dong)(dong)作(zuo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最(zui)(zui)(zui)遠處,用(yong)(yong)(yong)(yong)來(lai)(lai)防(fang)止(zhi)(zhi)器(qi)械(xie)動(dong)(dong)(dong)(dong)(dong)作(zuo)過大,出(chu)現器(qi)械(xie)損(sun)壞(huai)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)情(qing)況。3、用(yong)(yong)(yong)(yong)途區(qu)別(bie)(bie)(bie):行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)應(ying)用(yong)(yong)(yong)(yong)比較(jiao)廣(guang)(guang)泛。最(zui)(zui)(zui)典型的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)在(zai)(zai)(zai)(zai)冰箱(xiang)方(fang)面(mian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)使(shi)用(yong)(yong)(yong)(yong),在(zai)(zai)(zai)(zai)打開(kai)(kai)(kai)(kai)冰箱(xiang)門的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時(shi)(shi)候(hou)(hou),冰箱(xiang)里面(mian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)燈(deng)就會(hui)(hui)(hui)自動(dong)(dong)(dong)(dong)(dong)亮起(qi),當關(guan)(guan)(guan)上(shang)冰箱(xiang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)門后,冰箱(xiang)里面(mian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)燈(deng)就會(hui)(hui)(hui)自動(dong)(dong)(dong)(dong)(dong)熄滅。不但(dan)方(fang)便了(le)(le)人(ren)們的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)日(ri)常生(sheng)活,而且也(ye)更加(jia)節約能(neng)(neng)源,減少(shao)資源浪(lang)費。除(chu)了(le)(le)在(zai)(zai)(zai)(zai)冰箱(xiang)上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)運(yun)(yun)用(yong)(yong)(yong)(yong),日(ri)常使(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)洗衣(yi)機(ji)也(ye)運(yun)(yun)用(yong)(yong)(yong)(yong)了(le)(le)行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan),特別(bie)(bie)(bie)是(shi)(shi)在(zai)(zai)(zai)(zai)洗衣(yi)機(ji)脫水(shui)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時(shi)(shi)候(hou)(hou),脫水(shui)桶會(hui)(hui)(hui)高(gao)(gao)速(su)運(yun)(yun)轉,有(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)老(lao)人(ren)或小孩兒安全(quan)意識(shi)較(jiao)差。可(ke)(ke)能(neng)(neng)會(hui)(hui)(hui)在(zai)(zai)(zai)(zai)洗衣(yi)機(ji)脫水(shui)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時(shi)(shi)候(hou)(hou),打開(kai)(kai)(kai)(kai)洗衣(yi)機(ji)蓋,這本身是(shi)(shi)非(fei)常危險的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)行(xing)(xing)(xing)為。但(dan)應(ying)用(yong)(yong)(yong)(yong)了(le)(le)行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)后,就能(neng)(neng)很好(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)改善這種(zhong)(zhong)問(wen)題,從(cong)而保證了(le)(le)用(yong)(yong)(yong)(yong)戶的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)安全(quan)。行(xing)(xing)(xing)程(cheng)(cheng)(cheng)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)在(zai)(zai)(zai)(zai)起(qi)重機(ji)械(xie)、電(dian)(dian)(dian)梯控(kong)制(zhi)電(dian)(dian)(dian)路(lu)等(deng)(deng)(deng)等(deng)(deng)(deng)許多領(ling)域(yu)也(ye)已經廣(guang)(guang)泛運(yun)(yun)用(yong)(yong)(yong)(yong),發揮了(le)(le)它的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)優勢。限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)途也(ye)很廣(guang)(guang),不僅(jin)是(shi)(shi)在(zai)(zai)(zai)(zai)家用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)器(qi)和(he)(he)(he)(he)工業控(kong)制(zhi)上(shang)等(deng)(deng)(deng)等(deng)(deng)(deng)。在(zai)(zai)(zai)(zai)電(dian)(dian)(dian)梯井道的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最(zui)(zui)(zui)上(shang)方(fang)和(he)(he)(he)(he)最(zui)(zui)(zui)下方(fang)會(hui)(hui)(hui)安裝(zhuang)限(xian)(xian)(xian)位(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan),用(yong)(yong)(yong)(yong)來(lai)(lai)控(kong)制(zhi)電(dian)(dian)(dian)梯的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)停止(zhi)(zhi)和(he)(he)(he)(he)減速(su)。在(zai)(zai)(zai)(zai)錄像機(ji)和(he)(he)(he)(he)錄音機(ji)中,常常會(hui)(hui)(hui)用(yong)(yong)(yong)(yong)到(dao)倒(dao)退或者(zhe)快進,這時(shi)(shi)磁帶會(hui)(hui)(hui)快速(su)地(di)轉動(dong)(dong)(dong)(dong)(dong)。但(dan)是(shi)(shi)到(dao)達磁帶端(duan)點(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時(shi)(shi)候(hou)(hou),就會(hui)(hui)(hui)自動(dong)(dong)(dong)(dong)(dong)停下來(lai)(lai)。