
威海力建液壓設備廠
經營模式:生(sheng)產加(jia)工
地(di)址:山東省威海市羊亭孫家(jia)灘(tan)工(gong)業園
主營:液壓(ya)缸,油(you)缸,液壓(ya)系統(tong)
業務熱線(xian):
QQ:3049278720
擺動式液壓缸
擺動(dong)(dong)(dong)式(shi)(shi)液壓缸是輸出(chu)扭矩并實(shi)現(xian)往(wang)復(fu)運(yun)(yun)動(dong)(dong)(dong)的(de)執行元件,有單葉(xie)片(pian)、雙(shuang)(shuang)葉(xie)片(pian)、螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)等幾種形式(shi)(shi)。葉(xie)片(pian)式(shi)(shi)式(shi)(shi):定子塊(kuai)固(gu)定在(zai)缸體(ti)上(shang),而(er)葉(xie)片(pian)和轉(zhuan)(zhuan)子連接在(zai)一起。根據進油方向(xiang),葉(xie)片(pian)將帶動(dong)(dong)(dong)轉(zhuan)(zhuan)子作往(wang)復(fu)擺動(dong)(dong)(dong)。螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)式(shi)(shi)又分單螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)和雙(shuang)(shuang)螺(luo)旋(xuan)(xuan)兩(liang)種,現(xian)在(zai)雙(shuang)(shuang)螺(luo)旋(xuan)(xuan)比較常用,靠(kao)兩(liang)個(ge)螺(luo)旋(xuan)(xuan)副降液壓缸內活塞(sai)的(de)直線運(yun)(yun)動(dong)(dong)(dong)轉(zhuan)(zhuan)變為直線運(yun)(yun)動(dong)(dong)(dong)與自轉(zhuan)(zhuan)運(yun)(yun)動(dong)(dong)(dong)的(de)復(fu)he運(yun)(yun)動(dong)(dong)(dong),從(cong)而(er)實(shi)現(xian)擺動(dong)(dong)(dong)運(yun)(yun)動(dong)(dong)(dong)。





液(ye)壓缸(gang)(gang)結構(gou)基本上可以分為缸(gang)(gang)筒和缸(gang)(gang)蓋、活塞(sai)和活塞(sai)桿、密(mi)封裝置、緩沖(chong)裝置和排氣裝置五個部分。今天(tian)威海力建小編著重帶著大家(jia)了解一下(xia)缸(gang)(gang)筒和缸(gang)(gang)蓋。
缸筒和缸蓋
一般來說,缸(gang)(gang)筒(tong)和(he)(he)(he)缸(gang)(gang)蓋的(de)(de)(de)(de)(de)結構(gou)形(xing)(xing)(xing)式(shi)和(he)(he)(he)其使(shi)(shi)用(yong)的(de)(de)(de)(de)(de)材料有關(guan)。工作壓力p<10MPa時(shi)(shi),使(shi)(shi)用(yong)鑄(zhu)(zhu)鐵(tie);p<20MPa時(shi)(shi),使(shi)(shi)用(yong)無(wu)縫鋼(gang)管;p>20MPa時(shi)(shi),使(shi)(shi)用(yong)鑄(zhu)(zhu)鋼(gang)或(huo)鍛鋼(gang)。法蘭連(lian)接(jie)式(shi),結構(gou)簡(jian)單(dan),容(rong)易加(jia)工,也(ye)容(rong)易裝拆(chai)(chai),但外(wai)形(xing)(xing)(xing)尺(chi)寸(cun)(cun)和(he)(he)(he)重(zhong)(zhong)量(liang)都較(jiao)大(da),常用(yong)于(yu)鑄(zhu)(zhu)鐵(tie)制的(de)(de)(de)(de)(de)缸(gang)(gang)筒(tong)上(shang)。半環連(lian)接(jie)式(shi),它(ta)的(de)(de)(de)(de)(de)缸(gang)(gang)筒(tong)壁(bi)部因開(kai)了(le)環形(xing)(xing)(xing)槽(cao)而削(xue)弱了(le)強(qiang)度,為(wei)此(ci)有時(shi)(shi)要(yao)加(jia)厚缸(gang)(gang)壁(bi),它(ta)容(rong)易加(jia)工和(he)(he)(he)裝拆(chai)(chai),重(zhong)(zhong)量(liang)較(jiao)輕,常用(yong)于(yu)無(wu)縫鋼(gang)管或(huo)鍛鋼(gang)制的(de)(de)(de)(de)(de)缸(gang)(gang)筒(tong)上(shang)。螺紋連(lian)接(jie)式(shi),它(ta)的(de)(de)(de)(de)(de)缸(gang)(gang)筒(tong)端部結構(gou)復雜,外(wai)徑加(jia)工時(shi)(shi)要(yao)求保證內外(wai)徑同心,裝拆(chai)(chai)要(yao)使(shi)(shi)用(yong)工具,它(ta)的(de)(de)(de)(de)(de)外(wai)形(xing)(xing)(xing)尺(chi)寸(cun)(cun)和(he)(he)(he)重(zhong)(zhong)量(liang)都較(jiao)小(xiao),常用(yong)于(yu)無(wu)縫鋼(gang)管或(huo)鑄(zhu)(zhu)鋼(gang)制的(de)(de)(de)(de)(de)缸(gang)(gang)筒(tong)上(shang)。拉桿(gan)連(lian)接(jie)式(shi),結構(gou)的(de)(de)(de)(de)(de)通用(yong)性大(da),容(rong)易加(jia)工和(he)(he)(he)裝拆(chai)(chai),但外(wai)形(xing)(xing)(xing)尺(chi)寸(cun)(cun)較(jiao)大(da),且較(jiao)重(zhong)(zhong)。焊接(jie)連(lian)接(jie)式(shi),結構(gou)簡(jian)單(dan),尺(chi)寸(cun)(cun)小(xiao),但缸(gang)(gang)底(di)處內徑不(bu)易加(jia)工,且可能引起變形(xing)(xing)(xing)。
、液壓缸低(di)速爬(pa)行的(de)現象(xiang)
液(ye)壓(ya)缸的(de)活塞桿(gan)在油(you)壓(ya)的(de)作用(yong)下伸出或縮回時(shi),經(jing)(jing)常出現速(su)度(du)不均(jun)勻(yun)現象(xiang),并有時(shi)伴(ban)有振(zhen)動和(he)異(yi)響(xiang),從而引起整(zheng)個(ge)液(ye)壓(ya)系統(tong)的(de)振(zhen)動,并帶(dai)動主機(ji)其它部(bu)件(jian)振(zhen)動,在主機(ji)調試(shi)過程(cheng)中經(jing)(jing)常出現,有時(shi)速(su)度(du)快了,這(zhe)(zhe)種(zhong)現象(xiang)會減輕。除因(yin)液(ye)壓(ya)系統(tong)管路引起這(zhe)(zhe)種(zhong)現象(xiang)以外,液(ye)壓(ya)缸自身產生的(de)振(zhen)動也經(jing)(jing)常引發此類(lei)現象(xiang)。
原因分析
液壓(ya)缸有(you)(you)桿(gan)腔和無桿(gan)腔存有(you)(you)氣(qi)體而產生(sheng)的(de)(de)低(di)速爬行,由(you)于氣(qi)體混在液壓(ya)油中,在壓(ya)力的(de)(de)作用下,容器(qi)內體積變化,在高(gao)壓(ya)作用下甚至(zhi)發生(sheng)氣(qi)體瞬間,從而引起液壓(ya)缸的(de)(de)速度不(bu)穩定。