變頻器在起重機行業的應用|河南遠航工控設備有限公司:您現在的位置: 起重行業起重行業 詳細介紹 系統分析2.1、前景展望隨著電力電子技術的發展,變頻技術普遍應用于電力拖動領域,特別對一些耗能較大的設備(如起重機、引風機、送風機、給水泵、循環泵等)實行變頻調速,取得了明顯的節能效果。而 橋式起重機 采用變頻調速,取代傳統的電機轉子回路串阻調速控制方法,近幾年才開始應用的新技術,是一個新的探索和嘗試,而無速度傳感器矢量控制的變頻技術在 橋式起重機 傳動系統中已逐步得到廣泛的應用。2.2、系統結構組成 橋式起重機是工況企業中十分常用的一種起重機械,主要結構(gou)分為:橋架(jia)、大車(che)行(xing)(xing)走(zou)機(ji)構(gou)、小車(che)行(xing)(xing)走(zou)機(ji)構(gou)、起(qi)升機(ji)構(gou)。其中,大車(che)及小車(che)機(ji)構(gou)屬于平(ping)移機(ji)構(gou),主要帶動起(qi)升機(ji)構(gou)進行(xing)(xing)平(ping)移行(xing)(xing)走(zou),起(qi)升機(ji)構(gou)主要是拖動重物負(fu)載(zai)上下運動。2.3、負(fu)載(zai)特點 橋式起(qi)重機(ji)。
廣州吊車起升高度限位器 QGX_塔式起重機_工程起重機_供應信息:240){this.width=240;}" onmouseout="HAlbum();" id="DIMG"/> 本產品由提(ti)供,請致(zhi)電了解詳(xiang)情(qing)。 400-008-1892 打電話給(gei)我時,請一(yi)定說明是在中(zhong)國起(qi)(qi)重機械網看到的(de)(de),謝謝!廣州(zhou)(zhou)吊(diao)車(che)起(qi)(qi)升高(gao)度(du)(du)限(xian)(xian)位(wei)(wei)器(qi)(qi) QGX由卷筒軸(zhou)帶動(dong)(dong)蝸桿(gan)蝸輪轉(zhuan)動(dong)(dong),在蝸輪軸(zhou)上(shang)的(de)(de)凸(tu)輪亦隨之轉(zhuan)動(dong)(dong),轉(zhuan)到某一(yi)位(wei)(wei)置(zhi)時,凸(tu)輪的(de)(de)凸(tu)緣部分(fen)與限(xian)(xian)位(wei)(wei)開(kai)(kai)關接(jie)觸,使(shi)限(xian)(xian)位(wei)(wei)開(kai)(kai)關動(dong)(dong)作(zuo),切斷上(shang)升或(huo)下降(jiang)動(dong)(dong)力源,使(shi)吊(diao)具停止(zhi)在極限(xian)(xian)位(wei)(wei)置(zhi)上(shang)。QGX起(qi)(qi)升高(gao)度(du)(du)限(xian)(xian)制器(qi)(qi)設(she)有四到六(liu)個限(xian)(xian)位(wei)(wei)開(kai)(kai)關,可根據用戶需要自行設(she)定。一(yi)般可以對上(shang)升和下降(jiang)各設(she)兩道保(bao)護(hu),即報(bao)警限(xian)(xian)位(wei)(wei)和保(bao)護(hu)限(xian)(xian)位(wei)(wei)。廣州(zhou)(zhou)吊(diao)車(che)起(qi)(qi)升高(gao)度(du)(du)限(xian)(xian)位(wei)(wei)器(qi)(qi) QGX尺(chi)寸(cun)圖:工作(zuo)條件(jian)與性能:1、 工作(zuo)環境(jing)溫度(du)(du): -35℃+60℃;2、 限(xian)(xian)位(wei)(wei)開(kai)(kai)關額定電壓:380V;3、。
變頻器在起重機械上的應用_清苑吧:近年來,電(dian)(dian)(dian)(dian)控(kong)(kong)(kong)技(ji)術(shu)(shu)特別(bie)是變頻(pin)(pin)調(diao)(diao)速(su)(su)(su)技(ji)術(shu)(shu)的(de)(de)發展(zhan)十分迅速(su)(su)(su),大有(you)一(yi)統(tong)(tong)電(dian)(dian)(dian)(dian)控(kong)(kong)(kong)傳動系(xi)統(tong)(tong)的(de)(de)勢頭,起(qi)(qi)重機(ji)(ji)(ji)變頻(pin)(pin)調(diao)(diao)速(su)(su)(su)控(kong)(kong)(kong)制(zhi)系(xi)統(tong)(tong)主要(yao)采用(yong)變頻(pin)(pin)調(diao)(diao)速(su)(su)(su)技(ji)術(shu)(shu)和(he)(he)(he)可編程邏輯控(kong)(kong)(kong)制(zhi)技(ji)術(shu)(shu),真正實現(xian)了變頻(pin)(pin)器(qi)' 變頻(pin)(pin)器(qi)在位(wei)勢能負載上的(de)(de)應用(yong),可取代(dai)傳統(tong)(tong)的(de)(de)起(qi)(qi)重機(ji)(ji)(ji)調(diao)(diao)速(su)(su)(su)系(xi)統(tong)(tong),適用(yong)于新設(she)備的(de)(de)制(zhi)造和(he)(he)(he)既有(you)設(she)備改(gai)(gai)造。 起(qi)(qi)重機(ji)(ji)(ji)變頻(pin)(pin)調(diao)(diao)速(su)(su)(su)電(dian)(dian)(dian)(dian)控(kong)(kong)(kong)系(xi)統(tong)(tong)與主令(ling)控(kong)(kong)(kong)制(zhi)器(qi),重量測控(kong)(kong)(kong)儀、制(zhi)動器(qi)、限位(wei)開(kai)關等(deng)配合使用(yong),用(yong)于要(yao)求(qiu)高調(diao)(diao)速(su)(su)(su)性能的(de)(de)交流起(qi)(qi)重機(ji)(ji)(ji)起(qi)(qi)升和(he)(he)(he)平(ping)移機(ji)(ji)(ji)構(gou)或(huo)其它物(wu)料(liao)搬運系(xi)統(tong)(tong)。變頻(pin)(pin)調(diao)(diao)速(su)(su)(su)系(xi)統(tong)(tong)可工作于50Hz電(dian)(dian)(dian)(dian)網,供(gong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓位(wei)3×380V范(fan)圍內(nei),可控(kong)(kong)(kong)制(zhi)2×200KW交流變頻(pin)(pin)異步電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)的(de)(de)起(qi)(qi)動、制(zhi)動和(he)(he)(he)可逆運轉與調(diao)(diao)速(su)(su)(su)。 工作原理(li) 由異步電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)的(de)(de)轉速(su)(su)(su)公式(shi)-----可知,異步電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)的(de)(de)調(diao)(diao)速(su)(su)(su)方法可分為改(gai)(gai)變轉差率(lv)S,改(gai)(gai)變極對數P和(he)(he)(he)改(gai)(gai)變電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)供(gong)電(dian)(dian)(dian)(dian)頻(pin)(pin)率(lv)f1三種(zhong)。變頻(pin)(pin)調(diao)(diao)速(su)(su)(su)是通(tong)過改(gai)(gai)變電(dian)(dian)(dian)(dian)動機(ji)(ji)(ji)定子供(gong)電(dian)(dian)(dian)(dian)頻(pin)(pin)。