
威海力建液壓設備廠
經(jing)營模式:生產加工(gong)
地址:山(shan)東省威(wei)海市(shi)羊(yang)亭孫家灘工(gong)業園
主營:液(ye)壓缸,油缸,液(ye)壓系統
業務熱線:
QQ:3049278720
擺動式液壓缸
擺(bai)(bai)(bai)(bai)動(dong)(dong)式(shi)液(ye)壓(ya)(ya)缸是輸出扭矩并實現往復(fu)運(yun)動(dong)(dong)的(de)執行元件(jian),有單葉片(pian)、雙葉片(pian)、螺(luo)旋擺(bai)(bai)(bai)(bai)動(dong)(dong)等幾種形(xing)式(shi)。葉片(pian)式(shi)式(shi):定子塊(kuai)固(gu)定在(zai)缸體上,而葉片(pian)和(he)轉子連接在(zai)一起(qi)。根據進油方向(xiang),葉片(pian)將帶動(dong)(dong)轉子作(zuo)往復(fu)擺(bai)(bai)(bai)(bai)動(dong)(dong)。螺(luo)旋擺(bai)(bai)(bai)(bai)動(dong)(dong)式(shi)又分單螺(luo)旋擺(bai)(bai)(bai)(bai)動(dong)(dong)和(he)雙螺(luo)旋兩(liang)種,現在(zai)雙螺(luo)旋比較常(chang)用,靠兩(liang)個螺(luo)旋副降液(ye)壓(ya)(ya)缸內(nei)活塞的(de)直線(xian)(xian)運(yun)動(dong)(dong)轉變(bian)為直線(xian)(xian)運(yun)動(dong)(dong)與自轉運(yun)動(dong)(dong)的(de)復(fu)he運(yun)動(dong)(dong),從而實現擺(bai)(bai)(bai)(bai)動(dong)(dong)運(yun)動(dong)(dong)。





零部件(jian)加(jia)工(gong)(gong)(gong)精度的(de)影響問題(ti),在液(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)的(de)制(zhi)造過(guo)程(cheng)中(zhong)應(ying)嚴(yan)格控制(zhi)缸(gang)(gang)(gang)(gang)體(ti)內(nei)(nei)壁(bi)和活塞(sai)桿表面(mian)加(jia)工(gong)(gong)(gong)精度,特(te)別是幾何精度,尤其(qi)直(zhi)線度是關(guan)鍵,在國內(nei)(nei)加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝中(zhong),活塞(sai)桿表面(mian)的(de)加(jia)工(gong)(gong)(gong)基(ji)本上是車后磨(mo)削,保(bao)證直(zhi)線度問題(ti)不大,但(dan)(dan)對(dui)于(yu)缸(gang)(gang)(gang)(gang)體(ti)內(nei)(nei)壁(bi)的(de)加(jia)工(gong)(gong)(gong),其(qi)加(jia)工(gong)(gong)(gong)方法很多,有(you)鏜削-滾壓(ya)(ya)、鏜削-珩磨(mo)、直(zhi)接珩磨(mo)等,但(dan)(dan)由于(yu)國內(nei)(nei)材料(liao)的(de)基(ji)礎水平較國外有(you)差距,管材坯(pi)(pi)料(liao)直(zhi)線度差,壁(bi)厚(hou)不均(jun)勻、硬度不均(jun)勻等因素,往(wang)往(wang)直(zhi)接影響缸(gang)(gang)(gang)(gang)體(ti)內(nei)(nei)壁(bi)加(jia)工(gong)(gong)(gong)后的(de)直(zhi)線度,因此建議采用鏜削-滾壓(ya)(ya)、鏜削-珩磨(mo)工(gong)(gong)(gong)藝,如(ru)直(zhi)接珩磨(mo),則必須首先(xian)提(ti)高管材坯(pi)(pi)料(liao)的(de)直(zhi)線度。
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在允許的情況下,液壓(ya)缸的缸體壁厚安全(quan)系數盡量選大一些,使(shi)缸體厚壁增(zeng)加,特別是高(gao)壓(ya)工況下使(shi)用的油(you)(you)缸,以(yi)減小油(you)(you)壓(ya)下的缸體變形,變形后(hou)的缸體也會引起(qi)液壓(ya)缸低速爬行。
①缸體組件
缸(gang)(gang)體組(zu)件由(you)液壓缸(gang)(gang)缸(gang)(gang)筒與端蓋組(zu)成,缸(gang)(gang)筒與端蓋有多種(zhong)聯接(jie)形式.
②活塞組件
活(huo)塞(sai)(sai)組件(jian)由(you)活(huo)塞(sai)(sai)與活(huo)塞(sai)(sai)桿構(gou)成,活(huo)塞(sai)(sai)和活(huo)塞(sai)(sai)桿除常用的(de)螺紋(wen)聯(lian)接(jie)(jie)外,也(ye)可(ke)采(cai)用'非(fei)螺紋(wen)式'聯(lian)接(jie)(jie). ③密(mi)封裝置
在活(huo)塞和活(huo)塞桿的運動部分,端蓋和缸筒間的靜(jing)止(zhi)部分等處都需要設置(zhi)可靠的密(mi)封(feng).密(mi)封(feng)是提高系統性能與效率的有效措施(shi).
④緩沖裝置
大(da)型,高速及精度的液壓缸應(ying)設有緩沖(chong)裝(zhuang)(zhuang)置(zhi)(zhi),常見的液壓缸緩沖(chong)裝(zhuang)(zhuang)置(zhi)(zhi)有環狀間隙式,節(jie)流(liu)口可調式和節(jie)流(liu)口可變式等幾種.
⑤排氣裝置
液(ye)壓(ya)缸(gang)中存在(zai)空氣(qi)將使其運動不平穩(wen),當壓(ya)力增(zeng)大時會產生(sheng)絕熱(re)壓(ya)縮(suo)而造成局部(bu)高(gao)溫(wen),因此應在(zai)液(ye)壓(ya)缸(gang)的高(gao)部(bu)位上設置排(pai)氣(qi)裝置.
排氣(qi)裝置通(tong)常有珠形閥(fa)式(shi)排氣(qi)閥(fa)和(he)錐形閥(fa)式(shi)排氣(qi)閥(fa)兩種形式(shi).
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