
威海力建液壓設備廠(chang)
經營(ying)模式:生產加工
地址:山東省威海(hai)市羊亭(ting)孫家灘工業園
主營(ying):液(ye)壓缸,油缸,液(ye)壓系統(tong)
業(ye)務熱線(xian):
QQ:3049278720
擺動式液壓缸
擺(bai)動(dong)(dong)(dong)(dong)(dong)式液壓缸(gang)是(shi)輸出扭(niu)矩并實(shi)現(xian)往(wang)(wang)復(fu)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的執行元件,有單(dan)葉(xie)片、雙葉(xie)片、螺(luo)旋(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)等幾種形(xing)式。葉(xie)片式式:定子(zi)塊固定在缸(gang)體上,而(er)葉(xie)片和轉(zhuan)子(zi)連接在一起。根據進油(you)方向,葉(xie)片將帶動(dong)(dong)(dong)(dong)(dong)轉(zhuan)子(zi)作(zuo)往(wang)(wang)復(fu)擺(bai)動(dong)(dong)(dong)(dong)(dong)。螺(luo)旋(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)式又分單(dan)螺(luo)旋(xuan)擺(bai)動(dong)(dong)(dong)(dong)(dong)和雙螺(luo)旋(xuan)兩種,現(xian)在雙螺(luo)旋(xuan)比較(jiao)常用,靠兩個螺(luo)旋(xuan)副(fu)降液壓缸(gang)內活塞的直線(xian)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)轉(zhuan)變為直線(xian)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)與自轉(zhuan)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的復(fu)he運(yun)(yun)動(dong)(dong)(dong)(dong)(dong),從(cong)而(er)實(shi)現(xian)擺(bai)動(dong)(dong)(dong)(dong)(dong)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)。





故障診斷(威海(hai)力建(jian)冶(ye)金液壓設備廠)
液(ye)壓(ya)缸是(shi)液(ye)壓(ya)系統中將(jiang)液(ye)壓(ya)能(neng)轉換(huan)為(wei)機械能(neng)的執行(xing)元件。其故障(zhang)可(ke)基本歸納(na)為(wei)液(ye)壓(ya)缸誤動作、無力推動負(fu)載以及活塞滑移或爬行(xing)等。由于液(ye)壓(ya)缸出現故障(zhang)而導致設(she)備停機的現象屢見不鮮(xian),因此(ci),應重視(shi)液(ye)壓(ya)缸的故障(zhang)診斷與使用維護工作。
一、故障診斷及處理
1、誤動作或(huo)動作失靈
原因和處理方法有以下幾種:
1、液(ye)壓(ya)缸有桿腔和無(wu)桿腔存有氣(qi)體(ti)而產(chan)生(sheng)的(de)低速爬行(xing),可(ke)通過(guo)反復運行(xing)液(ye)壓(ya)缸達到排(pai)氣(qi)的(de)目的(de),必要時(shi)在管路或(huo)液(ye)壓(ya)缸的(de)兩腔設置排(pai)氣(qi)裝置,在液(ye)壓(ya)系統工(gong)作時(shi)進行(xing)排(pai)氣(qi)。
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2、液(ye)壓(ya)缸(gang)(gang)設(she)(she)計間(jian)(jian)(jian)隙(xi)(xi)不當產生的(de)(de)低(di)速(su)爬(pa)(pa)行(xing),可正確設(she)(she)計液(ye)壓(ya)缸(gang)(gang)內部(bu)活(huo)塞和(he)(he)缸(gang)(gang)體、活(huo)塞桿和(he)(he)導向(xiang)套(tao)之間(jian)(jian)(jian)的(de)(de)滑動配合間(jian)(jian)(jian)隙(xi)(xi),理論上(shang)的(de)(de)配合間(jian)(jian)(jian)隙(xi)(xi)為(wei)H9/N或H9/f8,也有H8/f8的(de)(de);根據本作者的(de)(de)經(jing)驗,液(ye)壓(ya)缸(gang)(gang)的(de)(de)缸(gang)(gang)徑(jing)和(he)(he)桿徑(jing)由小到大(da)(da),如都按此來設(she)(she)計配合間(jian)(jian)(jian)隙(xi)(xi),對于(yu)較(jiao)大(da)(da)缸(gang)(gang)徑(jing)(≥?200mm)和(he)(he)桿徑(jing)(≥?140mm)的(de)(de)配合間(jian)(jian)(jian)隙(xi)(xi)就顯得(de)間(jian)(jian)(jian)隙(xi)(xi)過(guo)大(da)(da),實(shi)際應(ying)過(guo)程中,這類(lei)液(ye)壓(ya)缸(gang)(gang)低(di)速(su)爬(pa)(pa)行(xing)現象較(jiao)小缸(gang)(gang)徑(jing)的(de)(de)液(ye)壓(ya)缸(gang)(gang)出(chu)現的(de)(de)多,國外此類(lei)液(ye)壓(ya)缸(gang)(gang)滑動面的(de)(de)配合間(jian)(jian)(jian)隙(xi)(xi)一般(ban)設(she)(she)計為(wei)0.05mm∽0.15mm,從實(shi)際比較(jiao)的(de)(de)結(jie)果來看,液(ye)壓(ya)缸(gang)(gang)的(de)(de)低(di)速(su)爬(pa)(pa)行(xing)問題明(ming)顯改(gai)善。因此對大(da)(da)缸(gang)(gang)徑(jing)的(de)(de)液(ye)壓(ya)缸(gang)(gang)建議(yi)選用這種方(fang)法(fa)。