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擺動式液壓缸

擺動(dong)(dong)(dong)(dong)(dong)(dong)(dong)式(shi)液(ye)壓缸(gang)(gang)是輸出扭矩并實現往(wang)復運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的執行元(yuan)件，有單葉(xie)片(pian)(pian)、雙(shuang)葉(xie)片(pian)(pian)、螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)(dong)(dong)(dong)(dong)等幾種形式(shi)。葉(xie)片(pian)(pian)式(shi)式(shi)：定子(zi)塊固定在(zai)缸(gang)(gang)體上(shang)，而(er)葉(xie)片(pian)(pian)和轉(zhuan)子(zi)連接在(zai)一起。根(gen)據進油方向(xiang)，葉(xie)片(pian)(pian)將帶動(dong)(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)子(zi)作往(wang)復擺動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)(dong)(dong)(dong)(dong)式(shi)又(you)分單螺(luo)旋(xuan)(xuan)擺動(dong)(dong)(dong)(dong)(dong)(dong)(dong)和雙(shuang)螺(luo)旋(xuan)(xuan)兩種，現在(zai)雙(shuang)螺(luo)旋(xuan)(xuan)比較常用，靠兩個(ge)螺(luo)旋(xuan)(xuan)副降液(ye)壓缸(gang)(gang)內活塞(sai)的直線(xian)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)變為直線(xian)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)與自轉(zhuan)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的復he運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，從而(er)實現擺動(dong)(dong)(dong)(dong)(dong)(dong)(dong)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。

若溢流(liu)(liu)(liu)閥(fa)(fa)進(jin)入(ru)臟物卡住閥(fa)(fa)芯，使溢流(liu)(liu)(liu)閥(fa)(fa)常開，液壓(ya)油會(hui)經溢流(liu)(liu)(liu)閥(fa)(fa)旁通直接(jie)流(liu)(liu)(liu)回油箱，導致(zhi)液壓(ya)缸(gang)沒油進(jin)入(ru)。若負載過大，溢流(liu)(liu)(liu)閥(fa)(fa)的調(diao)節壓(ya)力(li)(li)(li)雖已達到極大額定值(zhi)，但液壓(ya)缸(gang)仍(reng)得不(bu)(bu)(bu)到連續動作所需(xu)的推力(li)(li)(li)而不(bu)(bu)(bu)動作。若調(diao)節壓(ya)力(li)(li)(li)較低，則因(yin)壓(ya)力(li)(li)(li)不(bu)(bu)(bu)足達不(bu)(bu)(bu)到仍(reng)載所需(xu)的椎(zhui)力(li)(li)(li)，表現為推力(li)(li)(li)不(bu)(bu)(bu)夠。此時(shi)應檢查并調(diao)整溢流(liu)(liu)(liu)閥(fa)(fa)。(威(wei)海力(li)(li)(li)建冶金液壓(ya)設備(bei)廠(chang))

① 裝(zhuang)配時(shi)混入異物(wu)造成傷痕液壓缸在總組裝(zhuang)前，所有零(ling)件必須充(chong)分去除毛刺并洗凈(jing)， 零(ling)件上帶有毛刺或臟(zang)物(wu)進(jin)行安裝(zhuang)時(shi)，由于(yu)'別勁'及零(ling)件自重(zhong)，異物(wu)易嵌(qian)進(jin)缸壁表面，造成傷痕。

② 安裝零件中發生(sheng)的傷(shang)痕液壓缸安裝時(shi)，活塞及缸蓋等零件質量大、尺寸(cun)大、慣性(xing)大，即(ji)使(shi)有起重設備輔助安裝，由于規定配合間隙(xi)都(dou)較小(xiao)，無論怎(zen)樣均(jun)會別勁投(tou)入，