
威海力建液壓設備廠(chang)
經營(ying)模式:生產加工
地址:山東省(sheng)威海市羊亭(ting)孫家灘工業園
主營(ying):液壓缸,油缸,液壓系統(tong)
業(ye)務熱線:
QQ:3049278720
緩沖裝置
在(zai)液(ye)(ye)壓系統中(zhong)使用(yong)液(ye)(ye)壓缸(gang)(gang)驅動具(ju)有(you)一定(ding)質(zhi)量的機構(gou),當液(ye)(ye)壓缸(gang)(gang)運(yun)動至行程(cheng)終點時(shi)具(ju)有(you)較大動能,如未作減速(su)處理,液(ye)(ye)壓缸(gang)(gang)活塞與缸(gang)(gang)蓋將發生機械碰撞,產生沖(chong)擊、噪聲,有(you)破(po)壞性(xing)。為緩(huan)和及防止這種(zhong)危害發生,因此可在(zai)液(ye)(ye)壓回路中(zhong)設(she)置減速(su)裝置或(huo)在(zai)缸(gang)(gang)體內設(she)緩(huan)沖(chong)裝置。
加工
缸筒(tong)作為液(ye)壓(ya)缸、礦用單體(ti)支(zhi)柱、液(ye)壓(ya)支(zhi)架(jia)、炮管等產(chan)品的(de)主要部件,其加(jia)工(gong)(gong)(gong)質(zhi)量的(de)好壞直(zhi)接(jie)影響整個產(chan)品的(de)壽命和可(ke)靠性(xing)(xing)。缸筒(tong)加(jia)工(gong)(gong)(gong)要求高,其內(nei)表(biao)面粗糙度要求為Ra0.4~0.8&um,對同軸(zhou)度、耐磨性(xing)(xing)要求嚴格。缸筒(tong)的(de)基本(ben)特征是深孔加(jia)工(gong)(gong)(gong),其加(jia)工(gong)(gong)(gong)一直(zhi)困擾加(jia)工(gong)(gong)(gong)人員。





油(you)缸(gang)是(shi)工程(cheng)機械主要(yao)部件,傳統的加工方法是(shi):拉削缸(gang)體(ti)——精(jing)鏜(tang)缸(gang)體(ti)——磨(mo)削缸(gang)體(ti)。采(cai)用(yong)滾(gun)壓(ya)方法是(shi):拉削缸(gang)體(ti)——精(jing)鏜(tang)缸(gang)體(ti)——滾(gun)壓(ya)缸(gang)體(ti),工序是(shi)3部分,但時(shi)間(jian)上對(dui)比:磨(mo)削缸(gang)體(ti)1米大(da)概在1-2天的時(shi)間(jian),滾(gun)壓(ya)缸(gang)體(ti)1米大(da)概在10-30分鐘(zhong)的時(shi)間(jian)。投入對(dui)比:磨(mo)床(chuang)或絎磨(mo)機(幾萬(wan)(wan)——幾百萬(wan)(wan)),滾(gun)壓(ya)刀(1仟——幾萬(wan)(wan))。滾(gun)壓(ya)后,孔表面粗糙度由幢(chuang)滾(gun)前Ra3.2~6.3um減小為Ra0.4~0.8&um,
液壓缸(gang)(gang)結構基本上可以分(fen)為(wei)缸(gang)(gang)筒和(he)缸(gang)(gang)蓋、活塞和(he)活塞桿、密封(feng)裝(zhuang)(zhuang)置、緩沖裝(zhuang)(zhuang)置和(he)排氣裝(zhuang)(zhuang)置五個部分(fen)。今天威海力建小編著重帶著大(da)家了解(jie)一下缸(gang)(gang)筒和(he)缸(gang)(gang)蓋。
缸筒和缸蓋
一般來說,缸(gang)筒(tong)和(he)(he)缸(gang)蓋的結(jie)構形(xing)式和(he)(he)其使用(yong)(yong)(yong)的材料有關。工(gong)(gong)作壓力p<10MPa時,使用(yong)(yong)(yong)鑄(zhu)鐵;p<20MPa時,使用(yong)(yong)(yong)無縫(feng)鋼(gang)(gang)管;p>20MPa時,使用(yong)(yong)(yong)鑄(zhu)鋼(gang)(gang)或鍛鋼(gang)(gang)。法蘭(lan)連(lian)接(jie)式,結(jie)構簡單(dan),容(rong)易加(jia)(jia)工(gong)(gong),也容(rong)易裝(zhuang)拆,但外(wai)形(xing)尺寸和(he)(he)重(zhong)量(liang)(liang)都(dou)較大,常用(yong)(yong)(yong)于(yu)(yu)鑄(zhu)鐵制(zhi)(zhi)的缸(gang)筒(tong)上。半環連(lian)接(jie)式,它的缸(gang)筒(tong)壁部因(yin)開了環形(xing)槽而削弱了強度,為此有時要(yao)(yao)加(jia)(jia)厚缸(gang)壁,它容(rong)易加(jia)(jia)工(gong)(gong)和(he)(he)裝(zhuang)拆,重(zhong)量(liang)(liang)較輕,常用(yong)(yong)(yong)于(yu)(yu)無縫(feng)鋼(gang)(gang)管或鍛鋼(gang)(gang)制(zhi)(zhi)的缸(gang)筒(tong)上。螺紋連(lian)接(jie)式,它的缸(gang)筒(tong)端部結(jie)構復雜,外(wai)徑(jing)加(jia)(jia)工(gong)(gong)時要(yao)(yao)求保證內外(wai)徑(jing)同心(xin),裝(zhuang)拆要(yao)(yao)使用(yong)(yong)(yong)工(gong)(gong)具(ju),它的外(wai)形(xing)尺寸和(he)(he)重(zhong)量(liang)(liang)都(dou)較小,常用(yong)(yong)(yong)于(yu)(yu)無縫(feng)鋼(gang)(gang)管或鑄(zhu)鋼(gang)(gang)制(zhi)(zhi)的缸(gang)筒(tong)上。拉桿(gan)連(lian)接(jie)式,結(jie)構的通用(yong)(yong)(yong)性(xing)大,容(rong)易加(jia)(jia)工(gong)(gong)和(he)(he)裝(zhuang)拆,但外(wai)形(xing)尺寸較大,且(qie)(qie)較重(zhong)。焊接(jie)連(lian)接(jie)式,結(jie)構簡單(dan),尺寸小,但缸(gang)底處(chu)內徑(jing)不易加(jia)(jia)工(gong)(gong),且(qie)(qie)可(ke)能引起變(bian)形(xing)。