
威海力建(jian)液(ye)壓設備廠
經營模式:生產(chan)加工
地址(zhi):山東(dong)省(sheng)威海市羊亭孫家灘工業園(yuan)
主營:液(ye)(ye)壓(ya)缸(gang),油缸(gang),液(ye)(ye)壓(ya)系統
業務熱線(xian):
QQ:3049278720
液壓缸的介紹
液(ye)壓缸(gang)(gang)是將液(ye)壓能轉變為機(ji)械能的、做直線往(wang)復運動(dong)(或擺動(dong)運動(dong))的液(ye)壓執行元件。它(ta)結(jie)構簡單、工作可(ke)靠。用它(ta)來實現往(wang)復運動(dong)時,可(ke)免去減(jian)速(su)裝(zhuang)(zhuang)置(zhi),并且沒(mei)有傳動(dong)間隙,運動(dong)平穩,因此在各種機(ji)械的液(ye)壓系統中(zhong)得(de)到(dao)廣(guang)泛應(ying)用。液(ye)壓缸(gang)(gang)輸(shu)出力(li)和活塞(sai)(sai)有效(xiao)面積及其兩邊的壓差成正比;液(ye)壓缸(gang)(gang)基本上由缸(gang)(gang)筒(tong)和缸(gang)(gang)蓋、活塞(sai)(sai)和活塞(sai)(sai)桿、密封裝(zhuang)(zhuang)置(zhi)、緩沖裝(zhuang)(zhuang)置(zhi)與(yu)排氣(qi)(qi)裝(zhuang)(zhuang)置(zhi)組(zu)成。緩沖裝(zhuang)(zhuang)置(zhi)與(yu)排氣(qi)(qi)裝(zhuang)(zhuang)置(zhi)視(shi)具體應(ying)用場合而定,其他裝(zhuang)(zhuang)置(zhi)則很(hen)重要(yao)。





液壓缸結構基本上(shang)可以分為缸筒和缸蓋(gai)、活(huo)塞(sai)(sai)和活(huo)塞(sai)(sai)桿、密(mi)封裝置(zhi)(zhi)、緩沖(chong)裝置(zhi)(zhi)和排氣裝置(zhi)(zhi)五個(ge)部(bu)分。今天威海力建(jian)小編著重(zhong)帶著大家了解(jie)一下缸筒和缸蓋(gai)。
缸筒和缸蓋
一般來說,缸(gang)筒(tong)(tong)和(he)(he)缸(gang)蓋的(de)(de)(de)結構(gou)形(xing)(xing)式和(he)(he)其使用(yong)(yong)的(de)(de)(de)材料有(you)關。工(gong)作壓力p<10MPa時(shi)(shi),使用(yong)(yong)鑄(zhu)鐵;p<20MPa時(shi)(shi),使用(yong)(yong)無縫鋼(gang)(gang)管;p>20MPa時(shi)(shi),使用(yong)(yong)鑄(zhu)鋼(gang)(gang)或(huo)(huo)鍛鋼(gang)(gang)。法蘭(lan)連(lian)接(jie)(jie)式,結構(gou)簡單(dan),容(rong)(rong)易加工(gong),也容(rong)(rong)易裝拆(chai)(chai),但外(wai)形(xing)(xing)尺(chi)寸(cun)和(he)(he)重(zhong)量(liang)都(dou)較(jiao)大,常用(yong)(yong)于鑄(zhu)鐵制(zhi)的(de)(de)(de)缸(gang)筒(tong)(tong)上(shang)。半環(huan)連(lian)接(jie)(jie)式,它(ta)的(de)(de)(de)缸(gang)筒(tong)(tong)壁(bi)部(bu)因開了環(huan)形(xing)(xing)槽而削弱(ruo)了強度,為此有(you)時(shi)(shi)要加厚(hou)缸(gang)壁(bi),它(ta)容(rong)(rong)易加工(gong)和(he)(he)裝拆(chai)(chai),重(zhong)量(liang)較(jiao)輕,常用(yong)(yong)于無縫鋼(gang)(gang)管或(huo)(huo)鍛鋼(gang)(gang)制(zhi)的(de)(de)(de)缸(gang)筒(tong)(tong)上(shang)。螺紋連(lian)接(jie)(jie)式,它(ta)的(de)(de)(de)缸(gang)筒(tong)(tong)端部(bu)結構(gou)復雜,外(wai)徑(jing)加工(gong)時(shi)(shi)要求(qiu)保證(zheng)內外(wai)徑(jing)同心,裝拆(chai)(chai)要使用(yong)(yong)工(gong)具(ju),它(ta)的(de)(de)(de)外(wai)形(xing)(xing)尺(chi)寸(cun)和(he)(he)重(zhong)量(liang)都(dou)較(jiao)小(xiao),常用(yong)(yong)于無縫鋼(gang)(gang)管或(huo)(huo)鑄(zhu)鋼(gang)(gang)制(zhi)的(de)(de)(de)缸(gang)筒(tong)(tong)上(shang)。拉桿連(lian)接(jie)(jie)式,結構(gou)的(de)(de)(de)通用(yong)(yong)性大,容(rong)(rong)易加工(gong)和(he)(he)裝拆(chai)(chai),但外(wai)形(xing)(xing)尺(chi)寸(cun)較(jiao)大,且(qie)較(jiao)重(zhong)。焊接(jie)(jie)連(lian)接(jie)(jie)式,結構(gou)簡單(dan),尺(chi)寸(cun)小(xiao),但缸(gang)底處內徑(jing)不易加工(gong),且(qie)可能引起變(bian)形(xing)(xing)。
零部件加(jia)工(gong)精(jing)度(du)(du)(du)的影(ying)響問(wen)題(ti),在液壓缸(gang)(gang)的制造過程中應嚴格控制缸(gang)(gang)體內(nei)壁(bi)(bi)和(he)活塞(sai)(sai)桿(gan)表(biao)面加(jia)工(gong)精(jing)度(du)(du)(du),特別是(shi)幾何精(jing)度(du)(du)(du),尤(you)其(qi)直(zhi)線(xian)(xian)度(du)(du)(du)是(shi)關鍵(jian),在國內(nei)加(jia)工(gong)工(gong)藝中,活塞(sai)(sai)桿(gan)表(biao)面的加(jia)工(gong)基(ji)本上是(shi)車后(hou)磨(mo)削(xue),保(bao)證直(zhi)線(xian)(xian)度(du)(du)(du)問(wen)題(ti)不(bu)(bu)大,但對于缸(gang)(gang)體內(nei)壁(bi)(bi)的加(jia)工(gong),其(qi)加(jia)工(gong)方法很多,有(you)鏜削(xue)-滾壓、鏜削(xue)-珩磨(mo)、直(zhi)接珩磨(mo)等,但由于國內(nei)材料的基(ji)礎水平(ping)較國外有(you)差距(ju),管材坯(pi)料直(zhi)線(xian)(xian)度(du)(du)(du)差,壁(bi)(bi)厚不(bu)(bu)均(jun)(jun)勻(yun)、硬度(du)(du)(du)不(bu)(bu)均(jun)(jun)勻(yun)等因(yin)素,往(wang)(wang)往(wang)(wang)直(zhi)接影(ying)響缸(gang)(gang)體內(nei)壁(bi)(bi)加(jia)工(gong)后(hou)的直(zhi)線(xian)(xian)度(du)(du)(du),因(yin)此建議采用(yong)鏜削(xue)-滾壓、鏜削(xue)-珩磨(mo)工(gong)藝,如直(zhi)接珩磨(mo),則必(bi)須首先提高管材坯(pi)料的直(zhi)線(xian)(xian)度(du)(du)(du)。
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在(zai)允許的情況(kuang)(kuang)下,液壓(ya)缸(gang)(gang)(gang)的缸(gang)(gang)(gang)體壁厚(hou)安全系數盡量選大一(yi)些,使缸(gang)(gang)(gang)體厚(hou)壁增加,特(te)別(bie)是高壓(ya)工況(kuang)(kuang)下使用的油缸(gang)(gang)(gang),以減小(xiao)油壓(ya)下的缸(gang)(gang)(gang)體變形,變形后的缸(gang)(gang)(gang)體也會引(yin)起液壓(ya)缸(gang)(gang)(gang)低速爬(pa)行(xing)。