常用(yong)(yong)的軟(ruan)(ruan)(ruan)軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)結構形(xing)式分為(wei)(wei)兩種:一種為(wei)(wei)功率型軟(ruan)(ruan)(ruan)軸(zhou)(zhou)(zhou),該鋼(gang)絲軟(ruan)(ruan)(ruan)軸(zhou)(zhou)(zhou)接(jie)頭(tou)端部為(wei)(wei)固(gu)定式(螺紋連接(jie)),軟(ruan)(ruan)(ruan)管接(jie)頭(tou)內帶滑(hua)動(dong)(dong)軸(zhou)(zhou)(zhou)套(一般用(yong)(yong)青銅軸(zhou)(zhou)(zhou)套)。液壓開孔鉆(zhan)的軟(ruan)(ruan)(ruan)軸(zhou)(zhou)(zhou)動(dong)(dong)力(li)就是使(shi)用(yong)(yong)這(zhe)種形(xing)式;另(ling)一種為(wei)(wei)控制型軟(ruan)(ruan)(ruan)軸(zhou)(zhou)(zhou),該鋼(gang)絲軟(ruan)(ruan)(ruan)軸(zhou)(zhou)(zhou)接(jie)頭(tou)端部為(wei)(wei)滑(hua)動(dong)(dong)式,軟(ruan)(ruan)(ruan)管接(jie)頭(tou)為(wei)(wei)鐓壓連接(jie)(用(yong)(yong)于汽車里程表)。下(xia)面(mian)來說說傳(chuan)動(dong)(dong)軟(ruan)(ruan)(ruan)軸(zhou)(zhou)(zhou)的傳(chuan)動(dong)(dong)效率。
一、傳(chuan)遞功率(lv)小(xiao)于1kw時,直線的(de)傳(chuan)動(dong)效果為95%;
二、與(yu)長度成(cheng)正(zheng)比,越(yue)(yue)長損(sun)耗越(yue)(yue)大;
三(san)、與(yu)彎曲半徑(jing)成反(fan)比,彎曲半徑(jing)越(yue)小損耗越(yue)大;
四(si)、實際損耗比較大,從溫(wen)(wen)升上(shang)表(biao)現出(chu)來,彎曲地方(fang)溫(wen)(wen)度比直(zhi)線部(bu)分(fen)高,而且壽命測(ce)試中軟軸斷裂通常是在彎曲處。
因此(ci),軟(ruan)軸(zhou)在大功率液壓開孔(kong)機及(ji)管(guan)道切割設(she)備(bei)中(zhong)一(yi)般(ban)很少(shao)采用(yong)。但也有它(ta)的(de)優點(dian):軟(ruan)軸(zhou)可(ke)以彎(wan)曲的(de)繞越障礙,實現(xian)較(jiao)遠(yuan)距(ju)離的(de)回轉(zhuan)(zhuan)運(yun)動(dong),可(ke)以用(yong)于各種手持動(dong)力(li)機械的(de)傳(chuan)(chuan)(chuan)動(dong),以及(ji)里程(cheng)表等非動(dong)力(li)傳(chuan)(chuan)(chuan)遞。能減緩(huan)傳(chuan)(chuan)(chuan)動(dong)中(zhong)所(suo)帶來的(de)沖擊及(ji)震動(dong);軟(ruan)軸(zhou)一(yi)般(ban)用(yong)于高速度低轉(zhuan)(zhuan)矩(ju)的(de)場合,否(fou)則會出現(xian)轉(zhuan)(zhuan)速不(bu)穩定及(ji)扭轉(zhuan)(zhuan)剛度不(bu)能保(bao)證的(de)情況。