變頻器在單梁起重機上的應用特點
高性能、安全性好的變頻單梁起重機慢慢得到用戶的認可,變頻單梁起重機不僅降低了(le)維(wei)修成本,而且在安全方面做了(le)全面升級。那么(me)單梁起重(zhong)機在選用(yong)變頻器(qi)時(shi),如何確定呢?
變(bian)(bian)頻(pin)(pin)器(qi)(qi)分(fen)為(wei)兩種(zhong)(zhong):一種(zhong)(zhong)是(shi)(shi)通(tong)用(yong)(yong)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi),一種(zhong)(zhong)是(shi)(shi)矢(shi)(shi)量(liang)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi)。通(tong)用(yong)(yong)變(bian)(bian)頻(pin)(pin)器(qi)(qi)相對便宜,有些起(qi)重(zhong)機(ji)廠家為(wei)了節省成本使(shi)(shi)用(yong)(yong)通(tong)用(yong)(yong)性變(bian)(bian)頻(pin)(pin)器(qi)(qi)。但(dan)通(tong)用(yong)(yong)性變(bian)(bian)頻(pin)(pin)器(qi)(qi)是(shi)(shi)不適合在(zai)起(qi)重(zhong)機(ji)械上使(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)(de)。通(tong)用(yong)(yong)型(xing)(xing)變(bian)(bian)頻(pin)(pin)的(de)(de)(de)(de)(de)特(te)點是(shi)(shi)恒功率,矢(shi)(shi)量(liang)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi)的(de)(de)(de)(de)(de)特(te)點是(shi)(shi)恒扭矩。單梁(liang)起(qi)重(zhong)機(ji)的(de)(de)(de)(de)(de)主梁(liang)是(shi)(shi)有一定(ding)拱度的(de)(de)(de)(de)(de),中間(jian)高,兩端(duan)低。如(ru)使(shi)(shi)用(yong)(yong)通(tong)用(yong)(yong)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi),當小(xiao)車慢速(su)行駛到主梁(liang)中間(jian)位置時(shi),車輪會(hui)打滑,甚(shen)至有可(ke)能(neng)導致小(xiao)車會(hui)滑下來。因為(wei)通(tong)用(yong)(yong)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi)雖(sui)然是(shi)(shi)恒功率,但(dan)并(bing)非恒扭矩,在(zai)受到一定(ding)的(de)(de)(de)(de)(de)阻力時(shi),會(hui)顯得驅動無力。這(zhe)時(shi),只有用(yong)(yong)快(kuai)速(su)沖過去,就滿足不了一定(ding)工況,同時(shi)增加了危險(xian)性。而矢(shi)(shi)量(liang)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi)的(de)(de)(de)(de)(de)扭矩是(shi)(shi)恒定(ding)不變(bian)(bian)的(de)(de)(de)(de)(de)。在(zai)任(ren)何坡度下都能(neng)保證勻速(su)、通(tong)暢地運行。這(zhe)就是(shi)(shi)矢(shi)(shi)量(liang)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi)和通(tong)用(yong)(yong)型(xing)(xing)變(bian)(bian)頻(pin)(pin)器(qi)(qi)典型(xing)(xing)的(de)(de)(de)(de)(de)區(qu)別。有的(de)(de)(de)(de)(de)客戶可(ke)能(neng)也(ye)會(hui)發現(xian),同樣(yang)都是(shi)(shi)變(bian)(bian)頻(pin)(pin)配(pei)置的(de)(de)(de)(de)(de)單梁(liang)起(qi)重(zhong)機(ji),價(jia)格(ge)差異還是(shi)(shi)挺大的(de)(de)(de)(de)(de),因為(wei)配(pei)置選(xuan)擇也(ye)很(hen)重(zhong)要。
靖江市起重設備廠有(you)著近(jin)30年從(cong)事起重(zhong)機(ji)(ji)設計、研發、制造、安(an)裝等起重(zhong)搬運解決方案廠家(jia),以智能起重(zhong)機(ji)(ji)、液壓龍門(men)吊、集(ji)裝箱龍門(men)吊、輪胎吊、歐式起重(zhong)機(ji)(ji)以及各類非(fei)標起重(zhong)機(ji)(ji)為主,有(you)自營進出口權,是(shi)世界500強企業的合格供應(ying)商,為全球5000多家(jia)企業非(fei)標定制各類起重(zhong)機(ji)(ji)和方案服務。