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如何使螺旋輸送機(ji)達到較佳(jia)輸送狀態?
螺(luo)旋輸(shu)(shu)(shu)送(song)(song)(song)機(ji)設(she)計的(de)(de)(de)主要目的(de)(de)(de)就(jiu)是(shi)實現輸(shu)(shu)(shu)送(song)(song)(song)機(ji)的(de)(de)(de)較(jiao)(jiao)大(da)化(hua)輸(shu)(shu)(shu)送(song)(song)(song),保(bao)證輸(shu)(shu)(shu)送(song)(song)(song)機(ji)一(yi)直處(chu)于較(jiao)(jiao)佳(jia)的(de)(de)(de)輸(shu)(shu)(shu)送(song)(song)(song)狀態(tai),這(zhe)樣生(sheng)產(chan)的(de)(de)(de)螺(luo)旋輸(shu)(shu)(shu)送(song)(song)(song)機(ji)才具有價值性(xing)和(he)(he)(he)可實施性(xing)。輸(shu)(shu)(shu)送(song)(song)(song)機(ji)如何(he)實現較(jiao)(jiao)佳(jia)狀態(tai)下的(de)(de)(de)輸(shu)(shu)(shu)送(song)(song)(song)和(he)(he)(he)使(shi)用(yong),是(shi)技術(shu)人員一(yi)直在(zai)探究的(de)(de)(de)問題(ti)(ti),也是(shi)用(yong)戶(hu)關(guan)心的(de)(de)(de)問題(ti)(ti)。在(zai)以往的(de)(de)(de)設(she)計和(he)(he)(he)選用(yong)中(zhong),常根據產(chan)量采(cai)用(yong)簡單的(de)(de)(de)經驗公式求出轉(zhuan)速,這(zhe)樣設(she)計和(he)(he)(he)選用(yong)的(de)(de)(de)輸(shu)(shu)(shu)送(song)(song)(song)機(ji)并非在(zai)較(jiao)(jiao)佳(jia)轉(zhuan)速和(he)(he)(he)較(jiao)(jiao)大(da)輸(shu)(shu)(shu)送(song)(song)(song)效率(即較(jiao)(jiao)佳(jia)輸(shu)(shu)(shu)送(song)(song)(song)狀態(tai))下工作,那么如何(he)使(shi)螺(luo)旋輸(shu)(shu)(shu)送(song)(song)(song)機(ji)達到較(jiao)(jiao)佳(jia)狀態(tai)呢?
1.物料運(yun)動與受力(li)分析
在(zai)正常輸送物(wu)(wu)料(liao)時(shi),物(wu)(wu)料(liao)的(de)(de)(de)牽連速(su)(su)度(du)(du)為(wei)(wei)物(wu)(wu)料(liao)所在(zai)螺(luo)旋體處(chu)圓周(zhou)速(su)(su)度(du)(du);物(wu)(wu)料(liao)的(de)(de)(de)相對(dui)速(su)(su)度(du)(du)為(wei)(wei)物(wu)(wu)料(liao)沿葉片滑(hua)動的(de)(de)(de)速(su)(su)度(du)(du),方(fang)(fang)向(xiang)(xiang)(xiang)沿螺(luo)旋葉片向(xiang)(xiang)(xiang)上;物(wu)(wu)料(liao)的(de)(de)(de)速(su)(su)度(du)(du)為(wei)(wei)與(yu)水(shui)平面之夾角(jiao)y稱為(wei)(wei)物(wu)(wu)料(liao)升角(jiao),可分為(wei)(wei)物(wu)(wu)料(liao)垂(chui)直向(xiang)(xiang)(xiang)上方(fang)(fang)向(xiang)(xiang)(xiang)速(su)(su)度(du)(du)和水(shui)平方(fang)(fang)向(xiang)(xiang)(xiang)速(su)(su)度(du)(du),其受力(li)(li)(li)為(wei)(wei):(1)重力(li)(li)(li)mg;(2)葉片對(dui)物(wu)(wu)料(liao)的(de)(de)(de)正反(fan)力(li)(li)(li)Ⅳ;(3)葉片對(dui)物(wu)(wu)料(liao)的(de)(de)(de)摩擦(ca)(ca)力(li)(li)(li);(4)機殼(ke)(ke)處(chu)物(wu)(wu)料(liao)的(de)(de)(de)離心(xin)慣性力(li)(li)(li);(5)機殼(ke)(ke)對(dui)物(wu)(wu)料(liao)的(de)(de)(de)支反(fan)力(li)(li)(li)Ⅳ2;(6)機殼(ke)(ke)對(dui)物(wu)(wu)料(liao)的(de)(de)(de)摩擦(ca)(ca)力(li)(li)(li)F,方(fang)(fang)向(xiang)(xiang)(xiang)與(yu)運動速(su)(su)度(du)(du)相反(fan)。
2.較佳輸送狀態參數
較(jiao)(jiao)佳輸送(song)(song)狀態參數主要包(bao)括較(jiao)(jiao)大(da)(da)輸送(song)(song)效(xiao)率(lv)和較(jiao)(jiao)佳轉(zhuan)(zhuan)速。由牽連速度與(yu)轉(zhuan)(zhuan)速的(de)關系(xi)得(de)螺旋的(de)轉(zhuan)(zhuan)速為當物(wu)料升角(jiao)等于0時(shi)即為臨界(jie)轉(zhuan)(zhuan)速。機械效(xiao)率(lv)為有(you)效(xiao)功率(lv)與(yu)軸功率(lv)之比,經推(tui)導(dao)可得(de)當輸送(song)(song)機結構確定后,輸送(song)(song)效(xiao)率(lv)、轉(zhuan)(zhuan)速只與(yu)物(wu)料升角(jiao)有(you)關。較(jiao)(jiao)大(da)(da)輸送(song)(song)效(xiao)率(lv)的(de)物(wu)料升角(jiao)為果,即佳轉(zhuan)(zhuan)速和較(jiao)(jiao)大(da)(da)輸送(song)(song)效(xiao)率(lv)。
螺旋輸(shu)(shu)送(song)(song)機(ji)(ji)廣(guang)泛應(ying)用(yong)在各工(gong)業企業中,是(shi)煤炭、冶(ye)金(jin)、化工(gong)、糧(liang)食及機(ji)(ji)械加(jia)工(gong)等行業大量使(shi)用(yong)的(de)(de)連續輸(shu)(shu)送(song)(song)設備,螺旋輸(shu)(shu)送(song)(song)機(ji)(ji)在生(sheng)產中,具有(you)結構簡單,占地面積小(xiao),性能(neng)穩定等特(te)點(dian),因而廣(guang)受用(yong)戶的(de)(de)喜(xi)愛(ai)和認可(ke)。輸(shu)(shu)送(song)(song)機(ji)(ji)采用(yong)優異無縫管,整體剛性好,可(ke)隨意(yi)選(xuan)擇(ze)工(gong)作(zuo)位置和工(gong)作(zuo)狀態,不(bu)會發生(sheng)粉(fen)塵泄漏等情(qing)況,安(an)全(quan)可(ke)靠,一種工(gong)業熱門(men)產品,同時還使(shi)用(yong)高質量減(jian)速機(ji)(ji),具有(you)轉矩大、噪音低、不(bu)滲油,壽命長的(de)(de)特(te)性。螺旋輸(shu)(shu)送(song)(song)機(ji)(ji)在發展的(de)(de)同時,還要(yao)緊跟時代潮流,順應(ying)社會發展的(de)(de)浪潮,不(bu)斷的(de)(de)自我更(geng)新和創新意(yi)識(shi) 。
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