以機(ji)構(gou)(gou)來看,運轉中存在著公(gong)轉跟(gen)自(zi)轉現(xian)象(xiang)都稱為行(xing)(xing)(xing)(xing)星式(shi)減速機(ji).目前市面上常見行(xing)(xing)(xing)(xing)星機(ji)構(gou)(gou)多(duo)屬NGW機(ji)構(gou)(gou),與其他機(ji)構(gou)(gou)最(zui)明顯(xian)特徵(zhi)就是可(ke)以看到(dao)太陽齒(chi),行(xing)(xing)(xing)(xing)星齒(chi)跟(gen)內齒(chi)圈,因(yin)此多(duo)數人就認為行(xing)(xing)(xing)(xing)星式(shi)減速機(ji)就只是這種;其實NN系列少齒(chi)差或擺線針輪行(xing)(xing)(xing)(xing)星并非(fei)自(zi)成一族!
近(jin)年來推出(chu)一款無間隙減速機,也(ye)造成(cheng)市(shi)面上許多回響(xiang),當(dang)然也有不少(shao)誤解(jie).在(zai)(zai)漸開線齒(chi)型上(shang)間隙補正,我們處理小(xiao)功率機構會采用彈簧,或在(zai)(zai)小(xiao)型NGW機構上(shang)對分度著手,但這種效能(neng)比(bi)對滿載轉矩落差較大,對於(wu)動(dong)態角度傳(chuan)達是弱些.也有些廠商以蝸(gua)輪蝸(gua)桿來表現無(wu)間隙狀態,但存屬(shu)磨擦傳(chuan)動(dong)特性(xing)無(wu)間隙能維持多久是較令(ling)人擔憂(you).
球體減速機怎麼(ma)實現無(wu)間隙傳動
一(yi)般的(de)行星減(jian)速機(ji),包含少齒差或擺線針(zhen)輪(lun)等,轉矩產生(sheng)多數由固定(ding)的(de)內齒圈或針(zhen)輪(lun)產生(sheng)相(xiang)對運動(dong)而(er)來(lai),在(zai)這些減(jian)速機(ji)組裝時則(ze)必許保(bao)留適度的(de)間隙(xi),否則(ze)機(ji)構件(jian)無法(fa)完成組合,所以僅能稱這些減(jian)速機(ji)為低(di)背隙(xi)減(jian)速機(ji)或微背隙(xi)減(jian)速機(ji),因為保(bao)留適當背隙(xi)為組合條件(jian)之一(yi)!!
球體減速機運(yun)(yun)動(dong)(dong)來源(yuan)(yuan)取自兩條(tiao)在同一平面上兩條(tiao)因相對運(yun)(yun)動(dong)(dong)的曲(qu)線(xian),經(jing)由滾(gun)動(dong)(dong)的鋼球為介(jie)質將源(yuan)(yuan)源(yuan)(yuan)不絕動(dong)(dong)力傳達出來.其(qi)作用力不在減速機外殼上,故沒(mei)有(you)徑(jing)向(xiang)(xiang)保(bao)留(liu)間隙問題, 球體減速(su)(su)機(ji)組裝進完(wan)成後(hou)需適當調(diao)整預壓,然後(hou)固定整個軸(zhou)(zhou)向(xiang)(xiang)尺(chi)寸,所以球體減速(su)(su)機(ji)的最(zui)終剛性會(hui)由(you)軸(zhou)(zhou)向(xiang)(xiang)尺(chi)寸來決定強弱,換言之球體減速(su)(su)機(ji)除(chu)無間隙特性外,更能承受絕無僅有(you)的負(fu)載沖擊,能完(wan)整不致損毀.并因兩曲(qu)線間運(yun)動(dong)純為滾動(dong),所以更能得到持(chi)久而安定的無間隙運(yun)轉(zhuan) .