平地機用NMRV130蝸輪蝸桿減速機改造方案

文(wen)章(zhang)出處：admin 人氣：發表時間：2019-09-22 23:16

平(ping)地(di)機用NMRV130蝸(gua)(gua)(gua)輪(lun)蝸(gua)(gua)(gua)桿減(jian)速(su)(su)機改(gai)造方(fang)案。反向自鎖性(xing)是(shi)(shi)(shi)蝸(gua)(gua)(gua)輪(lun)蝸(gua)(gua)(gua)桿減(jian)速(su)(su)機的(de)個(ge)很重要的(de)特點(dian)，就是(shi)(shi)(shi)利用這(zhe)個(ge)顯著特點(dian),其被廣泛應(ying)用于平(ping)地(di)機上，而平(ping)地(di)機作為種(zhong)鏟(chan)(chan)運機械(xie)，是(shi)(shi)(shi)防工(gong)程、礦山(shan)建設，城鄉(xiang)道(dao)路等(deng)建筑施工(gong)和(he)水利建設，農舊(jiu)改(gai)良(liang)等(deng)所(suo)必須(xu)的(de)工(gong)程機械(xie)，RV減(jian)速(su)(su)機是(shi)(shi)(shi)平(ping)地(di)機作業裝置的(de)關(guan)鍵部件(jian)之(zhi)，其作用是(shi)(shi)(shi)驅動(dong)大(da)齒圈實現鏟(chan)(chan)刀360度回轉(zhuan)，其轉(zhuan)矩傳(chuan)遞(di)路線是(shi)(shi)(shi)：馬達(da)—蝸(gua)(gua)(gua)桿—蝸(gua)(gua)(gua)輪(lun) —驅動(dong)小齒輪(lun)—大(da)齒圈，以上結構(gou)元件(jian)共(gong)同構(gou)成平(ping)地(di)機的(de)鏟(chan)(chan)刀回轉(zhuan)裝置，可以減(jian)速(su)(su)增矩，這(zhe)種(zhong)類型的(de)RV減(jian)速(su)(su)機的(de)減(jian)速(su)(su)比可以達(da)到350左右，終端大(da)輸出轉(zhuan)矩大(da)于80000N.m。

鵠興牌減速機電機，平地機用NMRV130蝸輪蝸桿減速機改造方案
鵠興牌RV130蝸輪蝸桿減速機型號對照表

平(ping)地(di)機(ji)作業(ye)時，常常需要(yao)調整(zheng)工作鏟刀在(zai)水平(ping)面的(de)(de)回(hui)轉(zhuan)角度，這(zhe)(zhe)樣做的(de)(de)目的(de)(de)有兩個(ge)：是(shi)調整(zheng)作業(ye)寬度以(yi)減(jian)少(shao)作業(ye)阻力，二是(shi)使物料沿著偏轉(zhuan)的(de)(de)側(ce)流出，鏟刀得以(yi)實(shi)施連續(xu)作業(ye)。用RV減(jian)速(su)箱驅動(dong)(dong)(dong)鏟刀回(hui)轉(zhuan)相當(dang)方便，但由于蝸(gua)(gua)(gua)輪(lun)(lun)蝸(gua)(gua)(gua)桿減(jian)速(su)機(ji)的(de)(de)自鎖性，在(zai)鏟刀受到(dao)沖(chong)擊(ji)載(zai)荷(he)時容(rong)易造(zao)成結構損(sun)壞(huai)，比如齒(chi)(chi)(chi)(chi)輪(lun)(lun)副(fu)斷齒(chi)(chi)(chi)(chi)或蝸(gua)(gua)(gua)輪(lun)(lun)蝸(gua)(gua)(gua)桿斷裂。而平(ping)地(di)機(ji)在(zai)復雜工況(kuang)下(xia)，鏟刀受到(dao)沖(chong)擊(ji)是(shi)經常發生(sheng)的(de)(de)，所(suo)以(yi)要(yao)延長回(hui)轉(zhuan)裝置的(de)(de)使用壽命，必(bi)須克服(fu)這(zhe)(zhe)種(zhong)自鎖性（NMRV減(jian)速(su)機(ji)的(de)(de)自鎖性即只能(neng)由蝸(gua)(gua)(gua)桿驅動(dong)(dong)(dong)蝸(gua)(gua)(gua)輪(lun)(lun)，反過來就(jiu)算驅動(dong)(dong)(dong)力施加到(dao)蝸(gua)(gua)(gua)輪(lun)(lun)上，蝸(gua)(gua)(gua)輪(lun)(lun)也不能(neng)轉(zhuan)動(dong)(dong)(dong)，因為這(zhe)(zhe)時它會(hui)被(bei)蝸(gua)(gua)(gua)桿自鎖）。鏟刀受到(dao)沖(chong)擊(ji)的(de)(de)結果就(jiu)是(shi)大齒(chi)(chi)(chi)(chi)圈帶動(dong)(dong)(dong)小齒(chi)(chi)(chi)(chi)輪(lun)(lun)反轉(zhuan)，蝸(gua)(gua)(gua)輪(lun)(lun)要(yao)驅動(dong)(dong)(dong)蝸(gua)(gua)(gua)桿反轉(zhuan)，這(zhe)(zhe)種(zhong)情況(kuang)下(xia)就(jiu)會(hui)造(zao)成疲勞損(sun)傷或直(zhi)接損(sun)壞(huai)，也就(jiu)是(shi)平(ping)地(di)機(ji)在(zai)實(shi)際(ji)使用中(zhong)，缺少(shao)沖(chong)擊(ji)保護的(de)(de)蝸(gua)(gua)(gua)輪(lun)(lun)蝸(gua)(gua)(gua)桿減(jian)速(su)機(ji)容(rong)易損(sun)壞(huai)。

為(wei)(wei)了克服常規RV減(jian)(jian)速電機(ji)(ji)在(zai)沖擊保護(hu)上的(de)(de)(de)不足，蝸(gua)(gua)輪(lun)不直接(jie)(jie)驅動(dong)(dong)小齒輪(lun)軸，提出(chu)兩者之(zhi)間(jian)增加套摩(mo)(mo)(mo)(mo)擦離(li)(li)合(he)器結(jie)構(gou)(gou)以及(ji)相(xiang)應的(de)(de)(de)壓(ya)(ya)力(li)(li)調(diao)整(zheng)機(ji)(ji)構(gou)(gou)方案，即RV減(jian)(jian)速機(ji)(ji)的(de)(de)(de)蝸(gua)(gua)輪(lun)與(yu)小齒輪(lun)不再是剛性(xing)的(de)(de)(de)同(tong)軸轉(zhuan)動(dong)(dong)，摩(mo)(mo)(mo)(mo)擦離(li)(li)合(he)器由上壓(ya)(ya)板、壓(ya)(ya)板組(zu)(zu)件、調(diao)整(zheng)墊(dian)片(pian)(pian)(pian)(pian)、摩(mo)(mo)(mo)(mo)擦片(pian)(pian)(pian)(pian)組(zu)(zu)，壓(ya)(ya)緊螺栓(shuan)等(deng)組(zu)(zu)成(cheng)，摩(mo)(mo)(mo)(mo)擦片(pian)(pian)(pian)(pian)組(zu)(zu)由動(dong)(dong)片(pian)(pian)(pian)(pian)和靜(jing)(jing)片(pian)(pian)(pian)(pian)組(zu)(zu)成(cheng)，母(mu)材(cai)為(wei)(wei)65Mn,兩面粘接(jie)(jie)耐磨(mo)粉(fen)末(mo)治金(jin)材(cai)料。動(dong)(dong)片(pian)(pian)(pian)(pian)外(wai)部(bu)(bu)(bu)為(wei)(wei)圓環狀，內部(bu)(bu)(bu)為(wei)(wei)矩(ju)形花鍵(jian)，由小齒輪(lun)軸帶動(dong)(dong)旋轉(zhuan)，靜(jing)(jing)片(pian)(pian)(pian)(pian)外(wai)部(bu)(bu)(bu)為(wei)(wei)矩(ju)形花鍵(jian)，內部(bu)(bu)(bu)為(wei)(wei)圓環狀，帶動(dong)(dong)蝸(gua)(gua)輪(lun)旋轉(zhuan)。離(li)(li)合(he)器內部(bu)(bu)(bu)摩(mo)(mo)(mo)(mo)擦力(li)(li)由施于壓(ya)(ya)板的(de)(de)(de)壓(ya)(ya)力(li)(li)來(lai)決定，通過調(diao)整(zheng)墊(dian)片(pian)(pian)(pian)(pian)的(de)(de)(de)數量使壓(ya)(ya)板產生(sheng)需要的(de)(de)(de)壓(ya)(ya)力(li)(li)。在(zai)內部(bu)(bu)(bu)，齒輪(lun)軸與(yu)摩(mo)(mo)(mo)(mo)擦片(pian)(pian)(pian)(pian)組(zu)(zu)動(dong)(dong)片(pian)(pian)(pian)(pian)通過花鍵(jian)聯(lian)接(jie)(jie)組(zu)(zu)成(cheng)離(li)(li)合(he)器結(jie)構(gou)(gou)的(de)(de)(de)主動(dong)(dong)部(bu)(bu)(bu)分(fen)，RV減(jian)(jian)速機(ji)(ji)蝸(gua)(gua)輪(lun)與(yu)摩(mo)(mo)(mo)(mo)擦組(zu)(zu)靜(jing)(jing)片(pian)(pian)(pian)(pian)通過花鍵(jian)聯(lian)接(jie)(jie)組(zu)(zu)成(cheng)離(li)(li)合(he)器的(de)(de)(de)從動(dong)(dong)部(bu)(bu)(bu)分(fen)，壓(ya)(ya)力(li)(li)調(diao)整(zheng)結(jie)構(gou)(gou)由壓(ya)(ya)板組(zu)(zu)件，調(diao)整(zheng)墊(dian)片(pian)(pian)(pian)(pian)，耐磨(mo)襯(chen)墊(dian)，滑動(dong)(dong)軸承(cheng)，耐磨(mo)襯(chen)墊(dian)和小齒輪(lun)和鎖緊螺母(mu)組(zu)(zu)成(cheng)；外(wai)部(bu)(bu)(bu)為(wei)(wei)箱體和上蓋。

作用(yong)于鏟刀的沖(chong)擊(ji)力(li)(li)依次通過(guo)大齒圈(quan)，小齒輪和(he)齒輪軸后傳遞到離(li)合(he)(he)器的摩(mo)擦片(pian)(pian)(pian)組(zu)，當(dang)外部沖(chong)擊(ji)力(li)(li)大于離(li)合(he)(he)器的預(yu)設力(li)(li)時，離(li)合(he)(he)器摩(mo)擦片(pian)(pian)(pian)組(zu)內的動片(pian)(pian)(pian)和(he)靜片(pian)(pian)(pian)產(chan)生滑(hua)轉(zhuan)(zhuan)。從動片(pian)(pian)(pian)到鏟刀沒有(you)了(le)(le)蝸輪蝸桿自鎖力(li)(li)的制約，能(neng)夠反向自由(you)滑(hua)轉(zhuan)(zhuan)，在鏟刀背部阻力(li)(li)的作用(yong)下使沖(chong)擊(ji)減(jian)緩，而靜片(pian)(pian)(pian)與(yu)RV減(jian)速機(ji)蝸輪蝸桿這端由(you)于離(li)合(he)(he)器摩(mo)擦片(pian)(pian)(pian)分開，也不會受到過(guo)載沖(chong)擊(ji)，避(bi)免了(le)(le)過(guo)早損壞。

鵠興牌減速(su)機(ji)電機(ji)，平地機(ji)用NMRV130蝸(gua)輪蝸(gua)桿(gan)減速(su)機(ji)改造方(fang)案

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