
威(wei)海(hai)力建(jian)液壓設備廠
經營模式(shi):生產加工
地(di)址(zhi):山東(dong)省威海市羊(yang)亭孫家灘(tan)工業園
主營:液(ye)壓(ya)缸,油缸,液(ye)壓(ya)系統
業務熱線:
QQ:3049278720
液壓缸的介紹
液(ye)壓(ya)(ya)缸(gang)(gang)(gang)是(shi)將液(ye)壓(ya)(ya)能轉變為(wei)機械(xie)能的、做(zuo)直線往復運動(或擺動運動)的液(ye)壓(ya)(ya)執行元件。它(ta)結構簡單、工作可靠。用它(ta)來實現往復運動時,可免去減(jian)速裝(zhuang)置(zhi),并且沒有傳動間隙,運動平穩(wen),因此在各種機械(xie)的液(ye)壓(ya)(ya)系(xi)統中得(de)到廣(guang)泛(fan)應用。液(ye)壓(ya)(ya)缸(gang)(gang)(gang)輸出力(li)和(he)活(huo)塞有效面積及其兩邊(bian)的壓(ya)(ya)差成(cheng)(cheng)正(zheng)比;液(ye)壓(ya)(ya)缸(gang)(gang)(gang)基(ji)本上由缸(gang)(gang)(gang)筒和(he)缸(gang)(gang)(gang)蓋、活(huo)塞和(he)活(huo)塞桿、密封裝(zhuang)置(zhi)、緩沖(chong)裝(zhuang)置(zhi)與(yu)(yu)排(pai)氣裝(zhuang)置(zhi)組(zu)成(cheng)(cheng)。緩沖(chong)裝(zhuang)置(zhi)與(yu)(yu)排(pai)氣裝(zhuang)置(zhi)視(shi)具體應用場合而定,其他裝(zhuang)置(zhi)則很(hen)重(zhong)要。





液壓缸結構基(ji)本(ben)上可以(yi)分(fen)為缸筒(tong)和(he)缸蓋、活塞和(he)活塞桿、密封裝(zhuang)置(zhi)、緩沖(chong)裝(zhuang)置(zhi)和(he)排氣(qi)裝(zhuang)置(zhi)五個部分(fen)。今天威海力(li)建小編(bian)著重(zhong)帶著大家了解(jie)一下缸筒(tong)和(he)缸蓋。
缸筒和缸蓋
一般來說,缸(gang)筒和缸(gang)蓋的(de)結(jie)構形式(shi)和其使(shi)用(yong)(yong)的(de)材(cai)料有關。工(gong)(gong)(gong)作壓力p<10MPa時(shi),使(shi)用(yong)(yong)鑄(zhu)(zhu)(zhu)鐵;p<20MPa時(shi),使(shi)用(yong)(yong)無縫鋼(gang)(gang)管;p>20MPa時(shi),使(shi)用(yong)(yong)鑄(zhu)(zhu)(zhu)鋼(gang)(gang)或鍛鋼(gang)(gang)。法蘭(lan)連(lian)(lian)(lian)(lian)接(jie)式(shi),結(jie)構簡單(dan),容(rong)易加(jia)(jia)工(gong)(gong)(gong),也容(rong)易裝(zhuang)拆(chai)(chai),但(dan)(dan)外形尺(chi)寸(cun)和重(zhong)量都(dou)(dou)較(jiao)大(da)(da),常用(yong)(yong)于鑄(zhu)(zhu)(zhu)鐵制的(de)缸(gang)筒上。半環連(lian)(lian)(lian)(lian)接(jie)式(shi),它的(de)缸(gang)筒壁(bi)部(bu)因開了環形槽而削弱了強度,為此有時(shi)要(yao)加(jia)(jia)厚(hou)缸(gang)壁(bi),它容(rong)易加(jia)(jia)工(gong)(gong)(gong)和裝(zhuang)拆(chai)(chai),重(zhong)量較(jiao)輕,常用(yong)(yong)于無縫鋼(gang)(gang)管或鍛鋼(gang)(gang)制的(de)缸(gang)筒上。螺紋連(lian)(lian)(lian)(lian)接(jie)式(shi),它的(de)缸(gang)筒端部(bu)結(jie)構復雜(za),外徑加(jia)(jia)工(gong)(gong)(gong)時(shi)要(yao)求保證內(nei)(nei)外徑同心,裝(zhuang)拆(chai)(chai)要(yao)使(shi)用(yong)(yong)工(gong)(gong)(gong)具,它的(de)外形尺(chi)寸(cun)和重(zhong)量都(dou)(dou)較(jiao)小,常用(yong)(yong)于無縫鋼(gang)(gang)管或鑄(zhu)(zhu)(zhu)鋼(gang)(gang)制的(de)缸(gang)筒上。拉(la)桿連(lian)(lian)(lian)(lian)接(jie)式(shi),結(jie)構的(de)通用(yong)(yong)性大(da)(da),容(rong)易加(jia)(jia)工(gong)(gong)(gong)和裝(zhuang)拆(chai)(chai),但(dan)(dan)外形尺(chi)寸(cun)較(jiao)大(da)(da),且(qie)較(jiao)重(zhong)。焊接(jie)連(lian)(lian)(lian)(lian)接(jie)式(shi),結(jie)構簡單(dan),尺(chi)寸(cun)小,但(dan)(dan)缸(gang)底處內(nei)(nei)徑不易加(jia)(jia)工(gong)(gong)(gong),且(qie)可能引起變形。
零(ling)部件加(jia)(jia)工(gong)(gong)精(jing)度(du)(du)的(de)(de)(de)影(ying)響問(wen)題,在液壓缸的(de)(de)(de)制(zhi)(zhi)造過程中應嚴(yan)格控制(zhi)(zhi)缸體內(nei)(nei)壁和活(huo)(huo)塞(sai)桿(gan)表面加(jia)(jia)工(gong)(gong)精(jing)度(du)(du),特別(bie)是幾何精(jing)度(du)(du),尤(you)其直(zhi)(zhi)(zhi)線(xian)度(du)(du)是關鍵,在國(guo)內(nei)(nei)加(jia)(jia)工(gong)(gong)工(gong)(gong)藝中,活(huo)(huo)塞(sai)桿(gan)表面的(de)(de)(de)加(jia)(jia)工(gong)(gong)基本(ben)上是車后磨(mo)削,保證直(zhi)(zhi)(zhi)線(xian)度(du)(du)問(wen)題不(bu)大,但對(dui)于(yu)缸體內(nei)(nei)壁的(de)(de)(de)加(jia)(jia)工(gong)(gong),其加(jia)(jia)工(gong)(gong)方法很多,有(you)鏜削-滾(gun)壓、鏜削-珩(heng)磨(mo)、直(zhi)(zhi)(zhi)接珩(heng)磨(mo)等,但由于(yu)國(guo)內(nei)(nei)材料的(de)(de)(de)基礎(chu)水(shui)平較國(guo)外有(you)差(cha)距,管(guan)材坯料直(zhi)(zhi)(zhi)線(xian)度(du)(du)差(cha),壁厚不(bu)均勻、硬度(du)(du)不(bu)均勻等因素,往往直(zhi)(zhi)(zhi)接影(ying)響缸體內(nei)(nei)壁加(jia)(jia)工(gong)(gong)后的(de)(de)(de)直(zhi)(zhi)(zhi)線(xian)度(du)(du),因此建議采用鏜削-滾(gun)壓、鏜削-珩(heng)磨(mo)工(gong)(gong)藝,如(ru)直(zhi)(zhi)(zhi)接珩(heng)磨(mo),則必須首先(xian)提高管(guan)材坯料的(de)(de)(de)直(zhi)(zhi)(zhi)線(xian)度(du)(du)。
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在允(yun)許的情況下(xia),液壓缸(gang)(gang)的缸(gang)(gang)體(ti)壁厚安(an)全系數盡量選大(da)一些,使缸(gang)(gang)體(ti)厚壁增加,特別是高(gao)壓工況下(xia)使用的油(you)缸(gang)(gang),以減小油(you)壓下(xia)的缸(gang)(gang)體(ti)變(bian)(bian)形,變(bian)(bian)形后(hou)的缸(gang)(gang)體(ti)也會引(yin)起液壓缸(gang)(gang)低速爬行。