NKL-01斗輪機采樣機十字行程限位開關

NKL-01斗輪機采樣機十字行程限位開關

單級限位

多(duo)功能位(wei)置(zhi)控(kong)制(zhi)器主要(yao)用(yong)(yong)于(yu)交流50HZ，額(e)定工作(zuo)電壓(ya)至380V，直流額(e)定工作(zuo)電壓(ya)至220V的控(kong)制(zhi)電路中，用(yong)(yong)以(yi)限制(zhi)起(qi)重(zhong)機(ji)(ji)旋轉運動(dong)機(ji)(ji)構的工作(zuo)轉角和進行順序控(kong)制(zhi)。應(ying)用(yong)(yong)于(yu)建筑、港(gang)口、礦山等行業的起(qi)重(zhong)、傳輸(shu)機(ji)(ji)械(xie)(xie)的空間三(san)坐標的控(kong)制(zhi)和限位(wei)，具(ju)有體積(ji)小(xiao)、功能多(duo)、精度(du)高、限位(wei)可調、通用(yong)(yong)性強及(ji)維護安(an)裝和使(shi)用(yong)(yong)調整方(fang)便等特點在工程機(ji)(ji)械(xie)(xie)中應(ying)用(yong)(yong)。

限位(wei)開關(guan)主要由開關(guan)元件，接(jie)線端子，開關(guan)操動(dong)件，傳動(dong)部分(fen)組成，根據(ju)開關(guan)觸頭接(jie)通和斷開機械機理，開關(guan)元件有(you)下屬二(er)類(lei)。

1.緩動開關

緩(huan)動(dong)開(kai)關:開(kai)關的接通和斷(duan)開(kai)動(dong)作(zuo)切換時間(jian)與開(kai)關操(cao)(cao)作(zuo)頻(pin)率有關，操(cao)(cao)作(zuo)頻(pin)率越快，開(kai)關的切換也越快。

2.速度開關

速度開(kai)(kai)關(guan):開(kai)(kai)關(guan)的接通(tong)和斷開(kai)(kai)的轉換時間(jian)(jian)與開(kai)(kai)關(guan)被(bei) 操作的頻率無關(guan)，只要開(kai)(kai)關(guan)被(bei) 操作到一定位(wei)置(zhi)，開(kai)(kai)關(guan)便發生接通(tong)和斷開(kai)(kai)切換，此過程時間(jian)(jian)一般為彈簧彈跳所需時間(jian)(jian) ，此時間(jian)(jian)段為一常(chang)數。

限位(wei)開(kai)(kai)(kai)關(guan)(guan)又稱(cheng)行(xing)(xing)程(cheng)限位(wei)開(kai)(kai)(kai)關(guan)(guan)，用(yong)(yong)(yong)于(yu)控(kong)(kong)制(zhi)(zhi)(zhi)機(ji)械設(she)備的行(xing)(xing)程(cheng)及限位(wei)保(bao)護(hu)。在實(shi)際(ji)生(sheng)產(chan)中，將行(xing)(xing)程(cheng)限位(wei)開(kai)(kai)(kai)關(guan)(guan)安(an)裝在預先(xian)安(an)排的位(wei)置，當裝于(yu)生(sheng)產(chan)機(ji)械運動(dong)部件(jian)上的模(mo)塊撞擊行(xing)(xing)程(cheng)開(kai)(kai)(kai)關(guan)(guan)時，行(xing)(xing)程(cheng)限位(wei)開(kai)(kai)(kai)關(guan)(guan)的觸點動(dong)作，實(shi)現(xian)電(dian)(dian)路的切換。因(yin)此，限位(wei)開(kai)(kai)(kai)關(guan)(guan)是(shi)一(yi)種根(gen)據(ju)運動(dong)部件(jian)的行(xing)(xing)程(cheng)位(wei)置而切換電(dian)(dian)路的電(dian)(dian)器，它的作用(yong)(yong)(yong)原理與按鈕類似。限位(wei)開(kai)(kai)(kai)關(guan)(guan)用(yong)(yong)(yong)于(yu)各類機(ji)床和起重機(ji)械，用(yong)(yong)(yong)以控(kong)(kong)制(zhi)(zhi)(zhi)其行(xing)(xing)程(cheng)、進行(xing)(xing)終端限位(wei)保(bao)護(hu)。在電(dian)(dian)梯的控(kong)(kong)制(zhi)(zhi)(zhi)電(dian)(dian)路中，還利用(yong)(yong)(yong)行(xing)(xing)程(cheng)限位(wei)開(kai)(kai)(kai)關(guan)(guan)來控(kong)(kong)制(zhi)(zhi)(zhi)開(kai)(kai)(kai)關(guan)(guan)轎(jiao)(jiao)門(men)的速度、自動(dong)開(kai)(kai)(kai)關(guan)(guan)門(men)的限位(wei)，轎(jiao)(jiao)廂的上、下限位(wei)保(bao)護(hu)。

單級限位

結構：

限位開關(guan)，指為保護內(nei)置(zhi)微(wei)動開關(guan)免(mian)受外(wai)力、水、油、氣(qi)體和塵埃等的損害，而組裝在外(wai)殼內(nei)的開關(guan)，尤其適用(yong)于對機械強度和環境適應性有特殊要求的地方。形狀(zhuang)大致分為橫向型(xing)、豎向型(xing)和復合型(xing)。

限位(wei)開關是一(yi)種常用(yong)(yong)的(de)小(xiao)電(dian)(dian)流(liu)主令電(dian)(dian)器。利用(yong)(yong)生產(chan)機械運動(dong)(dong)(dong)(dong)(dong)部件的(de)碰撞使(shi)其(qi)觸頭動(dong)(dong)(dong)(dong)(dong)作來(lai)實現接(jie)通(tong)或分斷控(kong)制(zhi)電(dian)(dian)路，達到一(yi)定(ding)的(de)控(kong)制(zhi)目的(de)。通(tong)常，這類開關被(bei)用(yong)(yong)來(lai)限制(zhi)機械運動(dong)(dong)(dong)(dong)(dong)的(de)位(wei)置或行程，使(shi)運動(dong)(dong)(dong)(dong)(dong)機械按一(yi)定(ding)位(wei)置或行程自動(dong)(dong)(dong)(dong)(dong)停止、反向(xiang)運動(dong)(dong)(dong)(dong)(dong)、變(bian)速(su)運動(dong)(dong)(dong)(dong)(dong)或自動(dong)(dong)(dong)(dong)(dong)往返運動(dong)(dong)(dong)(dong)(dong)等。

行程開關按(an) 其結(jie)構可分為直動(dong)式、滾輪(lun)式、微(wei)動(dong)式和組合(he)式；

單級限位

直動式行程開關：

動作原理同按鈕類似，所不同的是:一個是手動，另一個則由(you)運(yun)動部(bu)件的撞(zhuang)塊(kuai)碰(peng)撞(zhuang)。當(dang)外(wai)界運(yun)動部(bu)件上(shang)的撞(zhuang)塊(kuai)碰(peng)壓按鈕使(shi)其觸(chu)頭(tou)動作，當(dang)運(yun)動部(bu)件離開(kai)后，在彈簧作用下，其觸(chu)頭(tou)自動復位。

滾輪式行程開關：

當運動(dong)(dong)機械的擋(dang)(dang)鐵(撞(zhuang)塊)壓(ya)到(dao)行程開(kai)關(guan)(guan)的滾輪(lun)(lun)(lun)上(shang)時(shi)，傳動(dong)(dong)杠連(lian)同轉(zhuan)軸一(yi)同轉(zhuan)動(dong)(dong)，使凸輪(lun)(lun)(lun)推動(dong)(dong)撞(zhuang)塊，當撞(zhuang)塊碰壓(ya)到(dao)一(yi)定(ding)位(wei)(wei)置時(shi)，推動(dong)(dong)微動(dong)(dong)開(kai)關(guan)(guan)快速動(dong)(dong)作(zuo)(zuo)。當滾輪(lun)(lun)(lun)上(shang)的擋(dang)(dang)鐵移開(kai)后，復位(wei)(wei)彈簧就(jiu)使行程開(kai)關(guan)(guan)復位(wei)(wei)。這種是單輪(lun)(lun)(lun)自動(dong)(dong)恢復式(shi)行程開(kai)關(guan)(guan)。而(er)雙輪(lun)(lun)(lun)旋轉(zhuan)式(shi)行程開(kai)關(guan)(guan)不能自動(dong)(dong)復原，它是依靠運動(dong)(dong)機械反向移動(dong)(dong)時(shi)，擋(dang)(dang)鐵碰撞(zhuang)另一(yi)滾輪(lun)(lun)(lun)將其(qi)復原。在電氣控制(zhi)(zhi)系統(tong)中(zhong)，限(xian)位(wei)(wei)開(kai)關(guan)(guan)的作(zuo)(zuo)用是實現順序控制(zhi)(zhi)、定(ding)位(wei)(wei)控制(zhi)(zhi)和(he)位(wei)(wei)置狀(zhuang)態的檢測。用于控制(zhi)(zhi)機械設備的行程及(ji)限(xian)位(wei)(wei)保護。構造:由操(cao)作(zuo)(zuo)頭(tou)、觸點系統(tong)和(he)外(wai)殼組成(cheng)。

DXZ-001

DXZ-006

NKL-01

NKL-06

FCR-001

FCR-006

FFH-001FFH-006