處理因絞龍螺旋葉片長螺旋曲折形成的噪聲

2018-10-17 00:00:00

次

針對螺旋輸送機因絞龍螺旋葉片長螺(luo)旋曲折而形(xing)成的(de)不規則(ze)噪(zao)聲(sheng),對(dui)螺(luo)旋輸(shu)送機體系和制造(zao)工藝體系改(gai)善(shan)規劃,處(chu)理了上述問題,噪(zao)聲(sheng)顯著(zhu)下降(jiang),徹底滿足了運用要求(qiu).

一、螺旋輸送機屬一般機械設備,由于其長度太長,絞龍葉片螺旋軸撓曲度很大,發作曲折現象,在運用進程中極易發作螺旋葉片外圓與殼體內孔磕碰磨損.

螺(luo)(luo)旋(xuan)軸越長其撓曲(qu)(qu)度(du)越大(da),也即曲(qu)(qu)折(zhe)越大(da),長螺(luo)(luo)旋(xuan)軸曲(qu)(qu)折(zhe)問(wen)題(ti)是螺(luo)(luo)旋(xuan)輸送機設備普(pu)遍(bian)存在的一個共(gong)性問(wen)題(ti),由于(yu)選用兩頭軸承支承結構(gou),必(bi)定帶來(lai)曲(qu)(qu)折(zhe)問(wen)題(ti),原因很(hen)簡單,從材料力學方面剖析,長螺(luo)(luo)旋(xuan)軸是簡支梁(liang)安置方式,缺陷是中(zhong)心部(bu)位(wei)(wei)撓曲(qu)(qu)度(du)太(tai)大(da),致使中(zhong)心部(bu)位(wei)(wei)曲(qu)(qu)折(zhe)很(hen)大(da),絞龍葉片外圓與(yu)殼體內孔極易發(fa)生(sheng)彼此磕碰現(xian)象(xiang),發(fa)出(chu)強壯(zhuang)噪聲,嚴重(zhong)者可(ke)導致電(dian)動機憋停(ting),乃(nai)至形成電(dian)動機線圈焚毀等現(xian)象(xiang).

依據實踐經驗(yan),采納(na)了(le)如下辦法(fa),一般制造進螺(luo)旋(xuan)葉片(pian)外(wai)(wai)圓與(yu)殼體(ti)內(nei)孔(kong)之(zhi)間(jian)留有空隙10mm,選用偏疼(teng)結構規(gui)劃,螺(luo)旋(xuan)輸送機螺(luo)旋(xuan)軸(zhou)(zhou)(zhou)(zhou)反(fan)轉(zhuan)(zhuan)中(zhong)(zhong)心(xin)(xin)線與(yu)殼體(ti)反(fan)轉(zhuan)(zhuan)中(zhong)(zhong)心(xin)(xin)線偏疼(teng)8mm,奇妙地(di)處理了(le)螺(luo)旋(xuan)軸(zhou)(zhou)(zhou)(zhou)曲折帶來(lai)的(de)磕碰和噪聲(sheng)等(deng)問題,把螺(luo)旋(xuan)輸送機螺(luo)旋(xuan)軸(zhou)(zhou)(zhou)(zhou)反(fan)轉(zhuan)(zhuan)中(zhong)(zhong)心(xin)(xin)線上移8mm,雖然螺(luo)旋(xuan)軸(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)(xin)部位撓曲度很大(da),可是兩距離(li)處撓曲度很小(xiao),使中(zhong)(zhong)心(xin)(xin)部位與(yu)殼體(ti)下問空隙加大(da),螺(luo)旋(xuan)軸(zhou)(zhou)(zhou)(zhou)向下曲折,由于(yu)加大(da)了(le)空隙,所以減少了(le)絞龍葉片(pian)外(wai)(wai)圓與(yu)殼體(ti)內(nei)孔(kong)相(xiang)碰的(de)時(shi)機,處理了(le)曲折形成的(de)噪聲(sheng)問題.

二(er)、改善(shan)螺(luo)旋(xuan)軸(zhou)加工制(zhi)造工藝,由于(yu)頭(tou)軸(zhou)、尾軸(zhou)、中(zhong)心(xin)管軸(zhou)分隔(ge)加工、組焊(han)后(hou)(hou)各件同心(xin)度驗證以確保(bao),今后(hou)(hou)再焊(han)接(jie)絞龍葉片后(hou)(hou)又發生了曲折變形,其變形難以操控(kong),焊(han)接(jie)時螺(luo)旋(xuan)軸(zhou)部(bu)分高溫又冷卻,相當于(yu)部(bu)分回火熱處(chu)理,改變了此(ci)部(bu)分力學性(xing)能.

1、選(xuan)(xuan)用(yong)工(gong)裝(zhuang)規劃,車削選(xuan)(xuan)用(yong)一(yi)夾、一(yi)支(zhi)(zhi)承和一(yi)輔佐支(zhi)(zhi)承的過(guo)定位裝(zhuang)夾辦(ban)法,頭(tou)軸(zhou)部分選(xuan)(xuan)用(yong)四爪卡盤裝(zhuang)夾,床身(shen)尾(wei)部處用(yong)中心架支(zhi)(zhi)承,在(zai)床身(shen)的外延伸部分選(xuan)(xuan)用(yong)專(zhuan)門托輥工(gong)裝(zhuang)支(zhi)(zhi)承,托輥工(gong)裝(zhuang)支(zhi)(zhi)承作為輔佐支(zhi)(zhi)承來(lai)添加工(gong)藝體系(xi)的剛性(xing).

2、車(che)削(xue)進程,螺(luo)旋軸(zhou)(zhou)軸(zhou)(zhou)頭(tou)(tou)部分在(zai)車(che)削(xue)前要(yao)求其精加(jia)工(gong)(gong)(gong)(gong)處留加(jia)工(gong)(gong)(gong)(gong)余量10mm,軸(zhou)(zhou)頭(tou)(tou)處留有80mm長的(de)工(gong)(gong)(gong)(gong)藝(yi)卡距離便于裝夾(jia),尾(wei)軸(zhou)(zhou)端的(de)管軸(zhou)(zhou)上(shang)車(che)出(chu)寬80mm光面外圓,供(gong)中心(xin)架支承(cheng)用.依(yi)照機(ji)械加(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)車(che)削(xue)頭(tou)(tou)軸(zhou)(zhou)部分,完(wan)(wan)結(jie)(jie)仇人(ren)軸(zhou)(zhou)部分的(de)精加(jia)工(gong)(gong)(gong)(gong),用鋸(ju)床鋸(ju)去頭(tou)(tou)軸(zhou)(zhou)處工(gong)(gong)(gong)(gong)藝(yi)卡頭(tou)(tou)即可,在(zai)銑床上(shang)加(jia)工(gong)(gong)(gong)(gong)鍵槽(cao),完(wan)(wan)結(jie)(jie)悉數加(jia)工(gong)(gong)(gong)(gong),制(zhi)造出(chu)合格工(gong)(gong)(gong)(gong)件.

螺旋軸(zhou)焊接(jie)葉片時,選用(yong)雙人雙側同(tong)步接(jie)技能,確保其(qi)變形(xing)量雙側相同(tong),彼(bi)此抵消,用(yong)此方式操控(kong)并(bing)減少了(le)變形(xing)量,奇(qi)妙地處理了(le)制(zhi)造工(gong)藝帶來的長螺旋軸(zhou)曲折問題(ti).

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絞龍螺旋葉片