
威海力建液(ye)壓設備廠(chang)
經(jing)營模式:生(sheng)產加(jia)工
地址:山東(dong)省威海市羊亭孫家(jia)灘工業園
主營:液壓缸,油缸,液壓系統
業務熱線:
QQ:3049278720
擺動式液壓缸
擺(bai)動(dong)(dong)式液(ye)(ye)壓(ya)缸是輸出扭矩并(bing)實現往復運(yun)動(dong)(dong)的執行(xing)元(yuan)件,有單葉(xie)(xie)片、雙葉(xie)(xie)片、螺旋(xuan)(xuan)擺(bai)動(dong)(dong)等幾種形式。葉(xie)(xie)片式式:定子塊(kuai)固定在缸體上,而(er)葉(xie)(xie)片和轉(zhuan)子連接在一起。根據(ju)進油(you)方向,葉(xie)(xie)片將帶(dai)動(dong)(dong)轉(zhuan)子作往復擺(bai)動(dong)(dong)。螺旋(xuan)(xuan)擺(bai)動(dong)(dong)式又分單螺旋(xuan)(xuan)擺(bai)動(dong)(dong)和雙螺旋(xuan)(xuan)兩種,現在雙螺旋(xuan)(xuan)比較常用(yong),靠兩個螺旋(xuan)(xuan)副降液(ye)(ye)壓(ya)缸內活塞的直(zhi)線運(yun)動(dong)(dong)轉(zhuan)變為直(zhi)線運(yun)動(dong)(dong)與自轉(zhuan)運(yun)動(dong)(dong)的復he運(yun)動(dong)(dong),從而(er)實現擺(bai)動(dong)(dong)運(yun)動(dong)(dong)。





液壓(ya)缸(gang)結構基本上可以分為缸(gang)筒(tong)和(he)(he)缸(gang)蓋、活塞和(he)(he)活塞桿、密封裝(zhuang)置(zhi)、緩(huan)沖裝(zhuang)置(zhi)和(he)(he)排氣裝(zhuang)置(zhi)五個部分。今天威(wei)海力(li)建小編(bian)著重帶(dai)著大家了解一下缸(gang)筒(tong)和(he)(he)缸(gang)蓋。
缸筒和缸蓋
一般來說,缸筒(tong)和(he)(he)缸蓋的(de)(de)(de)結(jie)構(gou)形(xing)式和(he)(he)其使(shi)用(yong)的(de)(de)(de)材(cai)料有(you)關。工(gong)作壓力p<10MPa時(shi)(shi)(shi),使(shi)用(yong)鑄(zhu)鐵(tie);p<20MPa時(shi)(shi)(shi),使(shi)用(yong)無(wu)縫(feng)鋼(gang)(gang)(gang)管;p>20MPa時(shi)(shi)(shi),使(shi)用(yong)鑄(zhu)鋼(gang)(gang)(gang)或(huo)(huo)鍛鋼(gang)(gang)(gang)。法蘭連接式,結(jie)構(gou)簡(jian)單(dan),容易加(jia)工(gong),也容易裝(zhuang)拆,但外(wai)(wai)(wai)形(xing)尺寸和(he)(he)重(zhong)(zhong)量(liang)都較(jiao)大,常用(yong)于鑄(zhu)鐵(tie)制的(de)(de)(de)缸筒(tong)上(shang)。半環連接式,它的(de)(de)(de)缸筒(tong)壁(bi)部因開了環形(xing)槽而削弱(ruo)了強(qiang)度(du),為此有(you)時(shi)(shi)(shi)要加(jia)厚缸壁(bi),它容易加(jia)工(gong)和(he)(he)裝(zhuang)拆,重(zhong)(zhong)量(liang)較(jiao)輕,常用(yong)于無(wu)縫(feng)鋼(gang)(gang)(gang)管或(huo)(huo)鍛鋼(gang)(gang)(gang)制的(de)(de)(de)缸筒(tong)上(shang)。螺紋連接式,它的(de)(de)(de)缸筒(tong)端部結(jie)構(gou)復雜,外(wai)(wai)(wai)徑加(jia)工(gong)時(shi)(shi)(shi)要求保證內外(wai)(wai)(wai)徑同(tong)心,裝(zhuang)拆要使(shi)用(yong)工(gong)具,它的(de)(de)(de)外(wai)(wai)(wai)形(xing)尺寸和(he)(he)重(zhong)(zhong)量(liang)都較(jiao)小(xiao),常用(yong)于無(wu)縫(feng)鋼(gang)(gang)(gang)管或(huo)(huo)鑄(zhu)鋼(gang)(gang)(gang)制的(de)(de)(de)缸筒(tong)上(shang)。拉桿連接式,結(jie)構(gou)的(de)(de)(de)通用(yong)性大,容易加(jia)工(gong)和(he)(he)裝(zhuang)拆,但外(wai)(wai)(wai)形(xing)尺寸較(jiao)大,且(qie)較(jiao)重(zhong)(zhong)。焊接連接式,結(jie)構(gou)簡(jian)單(dan),尺寸小(xiao),但缸底處(chu)內徑不(bu)易加(jia)工(gong),且(qie)可能(neng)引起變形(xing)。
、液壓缸低速(su)爬行的(de)現(xian)象
液壓(ya)缸的(de)(de)活塞(sai)桿在(zai)油壓(ya)的(de)(de)作用下伸(shen)出(chu)或縮回(hui)時(shi),經(jing)常(chang)出(chu)現(xian)(xian)(xian)(xian)速度不均勻現(xian)(xian)(xian)(xian)象(xiang),并有時(shi)伴有振(zhen)動和(he)異(yi)響(xiang),從而引起整(zheng)個液壓(ya)系統(tong)的(de)(de)振(zhen)動,并帶動主機其它部件振(zhen)動,在(zai)主機調試過程(cheng)中經(jing)常(chang)出(chu)現(xian)(xian)(xian)(xian),有時(shi)速度快(kuai)了,這種(zhong)現(xian)(xian)(xian)(xian)象(xiang)會減(jian)輕。除(chu)因液壓(ya)系統(tong)管路引起這種(zhong)現(xian)(xian)(xian)(xian)象(xiang)以(yi)外,液壓(ya)缸自身(shen)產生的(de)(de)振(zhen)動也經(jing)常(chang)引發此類現(xian)(xian)(xian)(xian)象(xiang)。
原因分析
液(ye)(ye)壓(ya)(ya)缸有桿(gan)腔(qiang)(qiang)和(he)無(wu)桿(gan)腔(qiang)(qiang)存有氣(qi)體(ti)而(er)(er)產生的(de)低速(su)爬行,由于氣(qi)體(ti)混(hun)在(zai)(zai)液(ye)(ye)壓(ya)(ya)油中,在(zai)(zai)壓(ya)(ya)力的(de)作用下,容器(qi)內體(ti)積變化,在(zai)(zai)高(gao)壓(ya)(ya)作用下甚至發(fa)生氣(qi)體(ti)瞬間,從而(er)(er)引起液(ye)(ye)壓(ya)(ya)缸的(de)速(su)度(du)不穩定。