如何有效的控制龍門吊
由于龍門吊具有起升重(zhong)量大、凈空低、輪壓小、運行平穩以及(ji)安全可靠(kao)使用壽命(ming)加長的(de)因素被廣泛運用在(zai)(zai)車間以及(ji)倉庫等室外環(huan)境(jing)下工作(zuo)。在(zai)(zai)龍(long)門(men)吊的(de)作(zuo)業過程中,控(kong)制(zhi)系(xi)統起到(dao)了至關重(zhong)要的(de)作(zuo)用。除了比較常(chang)見(jian)的(de)凸輪控(kong)制(zhi)器控(kong)制(zhi)和(he)主令控(kong)制(zhi)器控(kong)制(zhi)這兩種控(kong)制(zhi)形式之外,龍(long)門(men)吊還成(cheng)功實現了自動控(kong)制(zhi),從而(er)提高了每個動作(zuo)的(de)精確性(xing)。
龍門(men)吊(diao)的(de)(de)(de)自動(dong)控(kong)(kong)(kong)制(zhi)(zhi)系統中包括了可(ke)編程序控(kong)(kong)(kong)制(zhi)(zhi)器(qi)自動(dong)控(kong)(kong)(kong)制(zhi)(zhi)、自動(dong)定(ding)位(wei)裝(zhuang)置(zhi)控(kong)(kong)(kong)制(zhi)(zhi)、大車運(yun)行(xing)(xing)機構的(de)(de)(de)糾偏和(he)電(dian)(dian)氣同步、電(dian)(dian)磁鐵及(ji)其控(kong)(kong)(kong)制(zhi)(zhi)電(dian)(dian)路以(yi)及(ji)地(di)面控(kong)(kong)(kong)制(zhi)(zhi)等幾個(ge)方面。龍門(men)吊(diao)的(de)(de)(de)各個(ge)機構的(de)(de)(de)運(yun)行(xing)(xing)時按照(zhao)程序設計的(de)(de)(de)規則(ze)實現(xian)的(de)(de)(de),它的(de)(de)(de)自動(dong)定(ding)位(wei)則(ze)是根據被控(kong)(kong)(kong)制(zhi)(zhi)對象(xiang)的(de)(de)(de)使(shi)用(yong)環境(jing)以(yi)及(ji)精(jing)度要求來確定(ding)裝(zhuang)置(zhi)的(de)(de)(de)機構形式,自動(dong)定(ding)位(wei)裝(zhuang)置(zhi)通(tong)常使(shi)用(yong)各種檢測元件(jian)與繼(ji)電(dian)(dian)器(qi)、接觸(chu)器(qi)或可(ke)編程序控(kong)(kong)(kong)制(zhi)(zhi)器(qi)相互(hu)配(pei)合,以(yi)達到自動(dong)定(ding)位(wei)的(de)(de)(de)目的(de)(de)(de)。
龍門吊中大(da)車運(yun)行機(ji)構的(de)(de)糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)和電(dian)(dian)(dian)氣同步分為(wei)人為(wei)糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)和自(zi)動(dong)(dong)(dong)糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian),人為(wei)糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)是(shi)當(dang)糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)超(chao)過(guo)(guo)一定值(zhi)后,糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)信(xin)(xin)號發生(sheng)器發出信(xin)(xin)號,司機(ji)斷開超(chao)前支腿側(ce)的(de)(de)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji),接通(tong)滯(zhi)后支腿偏(pian)(pian)的(de)(de)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)進行調整(zheng)。而大(da)車自(zi)動(dong)(dong)(dong)糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)是(shi)當(dang)偏(pian)(pian)斜超(chao)過(guo)(guo)一定值(zhi)時(shi),糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)指令發生(sheng)器發出指令,系(xi)統進行自(zi)動(dong)(dong)(dong)糾(jiu)(jiu)(jiu)(jiu)偏(pian)(pian)。電(dian)(dian)(dian)氣同步是(shi)在交流傳動(dong)(dong)(dong)中,常用(yong)帶有均衡電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)(de)電(dian)(dian)(dian)軸系(xi)統來實現電(dian)(dian)(dian)氣同步。有的(de)(de)龍門吊則會利用(yong)手動(dong)(dong)(dong)按鈕(niu)開關(guan)來實現地(di)面控(kong)制,其(qi)中有線遙控(kong)是(shi)通(tong)過(guo)(guo)專(zhuan)用(yong)電(dian)(dian)(dian)纜或動(dong)(dong)(dong)力(li)線作為(wei)載波(bo)體,對信(xin)(xin)號用(yong)調制解調器傳輸方式(shi),達到(dao)只用(yong)少(shao)量(liang)通(tong)道即可實現控(kong)制的(de)(de)方法。無線遙控(kong)利用(yong)當(dang)代電(dian)(dian)(dian)子技術,將信(xin)(xin)息以電(dian)(dian)(dian)波(bo)或光波(bo)為(wei)通(tong)道形式(shi)傳輸,達到(dao)控(kong)制的(de)(de)目的(de)(de)。
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