
威海力建(jian)液壓設備廠(chang)
經營模式:生(sheng)產加工
地址:山東省威海市羊亭孫家灘工業園
主(zhu)營:液(ye)壓缸(gang)(gang),油缸(gang)(gang),液(ye)壓系統
業務熱線:
QQ:3049278720
液壓缸的介紹
液壓(ya)(ya)缸(gang)(gang)是將(jiang)液壓(ya)(ya)能轉(zhuan)變(bian)為機械(xie)能的、做(zuo)直線往(wang)復運動(或(huo)擺(bai)動運動)的液壓(ya)(ya)執行元(yuan)件。它結構簡單、工作可靠(kao)。用(yong)它來實現往(wang)復運動時,可免去減速裝(zhuang)(zhuang)置(zhi),并且沒有傳動間隙,運動平(ping)穩,因此在各種機械(xie)的液壓(ya)(ya)系統中得到廣泛(fan)應(ying)用(yong)。液壓(ya)(ya)缸(gang)(gang)輸出力和活(huo)塞(sai)有效面積(ji)及(ji)其兩邊的壓(ya)(ya)差成正(zheng)比;液壓(ya)(ya)缸(gang)(gang)基(ji)本(ben)上(shang)由(you)缸(gang)(gang)筒和缸(gang)(gang)蓋、活(huo)塞(sai)和活(huo)塞(sai)桿、密封裝(zhuang)(zhuang)置(zhi)、緩沖裝(zhuang)(zhuang)置(zhi)與排(pai)(pai)氣裝(zhuang)(zhuang)置(zhi)組成。緩沖裝(zhuang)(zhuang)置(zhi)與排(pai)(pai)氣裝(zhuang)(zhuang)置(zhi)視具體應(ying)用(yong)場(chang)合而定,其他裝(zhuang)(zhuang)置(zhi)則(ze)很(hen)重要。





液壓缸(gang)(gang)結構基本上可以分為缸(gang)(gang)筒和缸(gang)(gang)蓋、活塞和活塞桿、密封裝(zhuang)置(zhi)、緩沖裝(zhuang)置(zhi)和排(pai)氣裝(zhuang)置(zhi)五個部分。今(jin)天威海力建小編著重(zhong)帶(dai)著大家(jia)了(le)解一下缸(gang)(gang)筒和缸(gang)(gang)蓋。
缸筒(tong)和缸蓋
一(yi)般(ban)來(lai)說,缸(gang)筒(tong)(tong)和缸(gang)蓋的(de)結(jie)(jie)構形(xing)(xing)式和其使(shi)(shi)(shi)用(yong)的(de)材料有(you)關。工(gong)(gong)(gong)作壓力p<10MPa時(shi),使(shi)(shi)(shi)用(yong)鑄(zhu)(zhu)鐵(tie);p<20MPa時(shi),使(shi)(shi)(shi)用(yong)無(wu)縫(feng)鋼管;p>20MPa時(shi),使(shi)(shi)(shi)用(yong)鑄(zhu)(zhu)鋼或(huo)(huo)鍛鋼。法蘭(lan)連(lian)接(jie)(jie)(jie)式,結(jie)(jie)構簡(jian)單(dan),容易(yi)(yi)加(jia)(jia)(jia)工(gong)(gong)(gong),也(ye)容易(yi)(yi)裝拆,但(dan)外形(xing)(xing)尺(chi)寸(cun)和重量都較(jiao)大,常(chang)用(yong)于(yu)鑄(zhu)(zhu)鐵(tie)制的(de)缸(gang)筒(tong)(tong)上(shang)(shang)。半環連(lian)接(jie)(jie)(jie)式,它(ta)的(de)缸(gang)筒(tong)(tong)壁部因開了環形(xing)(xing)槽而削弱了強度(du),為(wei)此(ci)有(you)時(shi)要加(jia)(jia)(jia)厚缸(gang)壁,它(ta)容易(yi)(yi)加(jia)(jia)(jia)工(gong)(gong)(gong)和裝拆,重量較(jiao)輕,常(chang)用(yong)于(yu)無(wu)縫(feng)鋼管或(huo)(huo)鍛鋼制的(de)缸(gang)筒(tong)(tong)上(shang)(shang)。螺紋(wen)連(lian)接(jie)(jie)(jie)式,它(ta)的(de)缸(gang)筒(tong)(tong)端部結(jie)(jie)構復雜,外徑(jing)加(jia)(jia)(jia)工(gong)(gong)(gong)時(shi)要求(qiu)保證內外徑(jing)同心,裝拆要使(shi)(shi)(shi)用(yong)工(gong)(gong)(gong)具,它(ta)的(de)外形(xing)(xing)尺(chi)寸(cun)和重量都較(jiao)小,常(chang)用(yong)于(yu)無(wu)縫(feng)鋼管或(huo)(huo)鑄(zhu)(zhu)鋼制的(de)缸(gang)筒(tong)(tong)上(shang)(shang)。拉桿連(lian)接(jie)(jie)(jie)式,結(jie)(jie)構的(de)通用(yong)性大,容易(yi)(yi)加(jia)(jia)(jia)工(gong)(gong)(gong)和裝拆,但(dan)外形(xing)(xing)尺(chi)寸(cun)較(jiao)大,且較(jiao)重。焊接(jie)(jie)(jie)連(lian)接(jie)(jie)(jie)式,結(jie)(jie)構簡(jian)單(dan),尺(chi)寸(cun)小,但(dan)缸(gang)底(di)處內徑(jing)不易(yi)(yi)加(jia)(jia)(jia)工(gong)(gong)(gong),且可能引起變形(xing)(xing)。
零部件加(jia)(jia)工(gong)(gong)(gong)精度(du)的影(ying)響問(wen)題,在液(ye)壓缸(gang)的制造過程中應嚴格控制缸(gang)體(ti)內(nei)(nei)壁和活塞桿表面(mian)加(jia)(jia)工(gong)(gong)(gong)精度(du),特別是(shi)(shi)幾何精度(du),尤其直(zhi)(zhi)(zhi)線度(du)是(shi)(shi)關鍵,在國內(nei)(nei)加(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝中,活塞桿表面(mian)的加(jia)(jia)工(gong)(gong)(gong)基本(ben)上是(shi)(shi)車后(hou)(hou)磨(mo)削,保證(zheng)直(zhi)(zhi)(zhi)線度(du)問(wen)題不(bu)(bu)大,但對(dui)于缸(gang)體(ti)內(nei)(nei)壁的加(jia)(jia)工(gong)(gong)(gong),其加(jia)(jia)工(gong)(gong)(gong)方法很多,有鏜削-滾壓、鏜削-珩(heng)(heng)磨(mo)、直(zhi)(zhi)(zhi)接珩(heng)(heng)磨(mo)等(deng),但由于國內(nei)(nei)材(cai)料的基礎水平較國外(wai)有差(cha)(cha)距,管(guan)材(cai)坯料直(zhi)(zhi)(zhi)線度(du)差(cha)(cha),壁厚不(bu)(bu)均(jun)勻(yun)、硬度(du)不(bu)(bu)均(jun)勻(yun)等(deng)因素,往往直(zhi)(zhi)(zhi)接影(ying)響缸(gang)體(ti)內(nei)(nei)壁加(jia)(jia)工(gong)(gong)(gong)后(hou)(hou)的直(zhi)(zhi)(zhi)線度(du),因此建(jian)議采用鏜削-滾壓、鏜削-珩(heng)(heng)磨(mo)工(gong)(gong)(gong)藝,如直(zhi)(zhi)(zhi)接珩(heng)(heng)磨(mo),則(ze)必須首(shou)先提高管(guan)材(cai)坯料的直(zhi)(zhi)(zhi)線度(du)。
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在允(yun)許(xu)的(de)情況(kuang)下(xia),液壓(ya)(ya)(ya)缸(gang)的(de)缸(gang)體壁(bi)厚安(an)全(quan)系(xi)數盡量選大一些,使(shi)缸(gang)體厚壁(bi)增加,特別是高(gao)壓(ya)(ya)(ya)工況(kuang)下(xia)使(shi)用的(de)油(you)缸(gang),以減小(xiao)油(you)壓(ya)(ya)(ya)下(xia)的(de)缸(gang)體變(bian)(bian)形,變(bian)(bian)形后的(de)缸(gang)體也會引起(qi)液壓(ya)(ya)(ya)缸(gang)低(di)速爬(pa)行。