
威(wei)海力建液壓設備廠
經營(ying)模式:生產(chan)加工
地址:山東省威海市羊亭(ting)孫家灘工(gong)業園
主營:液壓缸,油缸,液壓系(xi)統
業務熱線:
QQ:3049278720
緩沖裝置
在(zai)液(ye)(ye)(ye)(ye)壓(ya)(ya)系統中使用液(ye)(ye)(ye)(ye)壓(ya)(ya)缸驅(qu)動(dong)具有一定質(zhi)量的(de)機(ji)(ji)構,當(dang)液(ye)(ye)(ye)(ye)壓(ya)(ya)缸運動(dong)至行程終點時具有較大(da)動(dong)能,如未作減(jian)速處理,液(ye)(ye)(ye)(ye)壓(ya)(ya)缸活塞與缸蓋將發生(sheng)機(ji)(ji)械碰撞,產生(sheng)沖(chong)(chong)擊、噪聲,有破壞(huai)性。為緩和及(ji)防止這種危害發生(sheng),因此可在(zai)液(ye)(ye)(ye)(ye)壓(ya)(ya)回路中設(she)置減(jian)速裝(zhuang)置或(huo)在(zai)缸體內設(she)緩沖(chong)(chong)裝(zhuang)置。
加工
缸(gang)筒作為(wei)液(ye)壓缸(gang)、礦用(yong)單體支柱、液(ye)壓支架、炮管(guan)等產品的(de)主要(yao)部件,其加(jia)工(gong)質量的(de)好壞直(zhi)接影響(xiang)整個產品的(de)壽命和可靠性(xing)。缸(gang)筒加(jia)工(gong)要(yao)求(qiu)高,其內表(biao)面(mian)粗(cu)糙度(du)要(yao)求(qiu)為(wei)Ra0.4~0.8&um,對同(tong)軸度(du)、耐磨性(xing)要(yao)求(qiu)嚴格。缸(gang)筒的(de)基本特(te)征是(shi)深孔加(jia)工(gong),其加(jia)工(gong)一直(zhi)困(kun)擾加(jia)工(gong)人(ren)員。





油缸(gang)(gang)(gang)是工程機(ji)械主要部(bu)件,傳統的加工方法是:拉削缸(gang)(gang)(gang)體(ti)(ti)(ti)——精(jing)鏜缸(gang)(gang)(gang)體(ti)(ti)(ti)——磨(mo)削缸(gang)(gang)(gang)體(ti)(ti)(ti)。采用滾(gun)(gun)壓方法是:拉削缸(gang)(gang)(gang)體(ti)(ti)(ti)——精(jing)鏜缸(gang)(gang)(gang)體(ti)(ti)(ti)——滾(gun)(gun)壓缸(gang)(gang)(gang)體(ti)(ti)(ti),工序是3部(bu)分,但時(shi)間(jian)上對比:磨(mo)削缸(gang)(gang)(gang)體(ti)(ti)(ti)1米(mi)大概在1-2天的時(shi)間(jian),滾(gun)(gun)壓缸(gang)(gang)(gang)體(ti)(ti)(ti)1米(mi)大概在10-30分鐘的時(shi)間(jian)。投入對比:磨(mo)床(chuang)或絎磨(mo)機(ji)(幾(ji)萬(wan)——幾(ji)百萬(wan)),滾(gun)(gun)壓刀(1仟——幾(ji)萬(wan))。滾(gun)(gun)壓后(hou),孔表面粗糙度由幢滾(gun)(gun)前Ra3.2~6.3um減小(xiao)為(wei)Ra0.4~0.8&um,
液壓(ya)缸(gang)結構(gou)基本上可以分為(wei)缸(gang)筒和(he)缸(gang)蓋、活(huo)塞(sai)和(he)活(huo)塞(sai)桿、密(mi)封裝置(zhi)、緩沖(chong)裝置(zhi)和(he)排氣裝置(zhi)五(wu)個部分。今天威海(hai)力建小(xiao)編著重帶(dai)著大家(jia)了解一下(xia)缸(gang)筒和(he)缸(gang)蓋。
缸(gang)(gang)筒(tong)和缸(gang)(gang)蓋
一般來說,缸(gang)(gang)(gang)筒和(he)(he)缸(gang)(gang)(gang)蓋的(de)(de)(de)結(jie)(jie)構(gou)(gou)(gou)形(xing)式(shi)(shi)和(he)(he)其使(shi)用(yong)(yong)(yong)的(de)(de)(de)材(cai)料有關。工(gong)(gong)作壓力p<10MPa時,使(shi)用(yong)(yong)(yong)鑄鐵(tie);p<20MPa時,使(shi)用(yong)(yong)(yong)無(wu)縫(feng)鋼(gang)管;p>20MPa時,使(shi)用(yong)(yong)(yong)鑄鋼(gang)或(huo)鍛鋼(gang)。法蘭連接式(shi)(shi),結(jie)(jie)構(gou)(gou)(gou)簡(jian)單,容(rong)易加(jia)工(gong)(gong),也容(rong)易裝(zhuang)(zhuang)拆,但(dan)外形(xing)尺(chi)寸和(he)(he)重(zhong)(zhong)(zhong)量(liang)(liang)都(dou)較(jiao)大(da),常(chang)(chang)用(yong)(yong)(yong)于鑄鐵(tie)制的(de)(de)(de)缸(gang)(gang)(gang)筒上。半環連接式(shi)(shi),它(ta)的(de)(de)(de)缸(gang)(gang)(gang)筒壁(bi)部因開(kai)了環形(xing)槽而削弱(ruo)了強度(du),為此有時要加(jia)厚(hou)缸(gang)(gang)(gang)壁(bi),它(ta)容(rong)易加(jia)工(gong)(gong)和(he)(he)裝(zhuang)(zhuang)拆,重(zhong)(zhong)(zhong)量(liang)(liang)較(jiao)輕,常(chang)(chang)用(yong)(yong)(yong)于無(wu)縫(feng)鋼(gang)管或(huo)鍛鋼(gang)制的(de)(de)(de)缸(gang)(gang)(gang)筒上。螺紋連接式(shi)(shi),它(ta)的(de)(de)(de)缸(gang)(gang)(gang)筒端(duan)部結(jie)(jie)構(gou)(gou)(gou)復(fu)雜,外徑(jing)(jing)加(jia)工(gong)(gong)時要求保證內(nei)外徑(jing)(jing)同心,裝(zhuang)(zhuang)拆要使(shi)用(yong)(yong)(yong)工(gong)(gong)具,它(ta)的(de)(de)(de)外形(xing)尺(chi)寸和(he)(he)重(zhong)(zhong)(zhong)量(liang)(liang)都(dou)較(jiao)小(xiao),常(chang)(chang)用(yong)(yong)(yong)于無(wu)縫(feng)鋼(gang)管或(huo)鑄鋼(gang)制的(de)(de)(de)缸(gang)(gang)(gang)筒上。拉桿連接式(shi)(shi),結(jie)(jie)構(gou)(gou)(gou)的(de)(de)(de)通用(yong)(yong)(yong)性(xing)大(da),容(rong)易加(jia)工(gong)(gong)和(he)(he)裝(zhuang)(zhuang)拆,但(dan)外形(xing)尺(chi)寸較(jiao)大(da),且(qie)較(jiao)重(zhong)(zhong)(zhong)。焊(han)接連接式(shi)(shi),結(jie)(jie)構(gou)(gou)(gou)簡(jian)單,尺(chi)寸小(xiao),但(dan)缸(gang)(gang)(gang)底處內(nei)徑(jing)(jing)不易加(jia)工(gong)(gong),且(qie)可(ke)能引起變(bian)形(xing)。