冠縣工程用液壓缸-工程用液壓缸批發-力建液壓系統
威海力建液壓設(she)備廠
經營模式：生產加工
地址：山(shan)東省(sheng)威海市羊亭孫家灘工業(ye)園
主營(ying)：液壓(ya)缸(gang)(gang),油缸(gang)(gang),液壓(ya)系統(tong)
業務(wu)熱(re)線：
QQ：3049278720
產品詳(xiang)情 聯(lian)系方式
產品品牌：威海力建
供貨總量：不限
價格說明：議定
包裝說明：不限
物流說明：貨運及物流
交貨說明：按訂單
有效期至：長期有效
擺動式液壓缸
擺動(dong)(dong)(dong)(dong)(dong)(dong)式(shi)液壓缸(gang)(gang)是輸出扭矩并實現往(wang)復運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)的執行元(yuan)件，有單葉(xie)片、雙葉(xie)片、螺(luo)旋(xuan)擺動(dong)(dong)(dong)(dong)(dong)(dong)等幾種形式(shi)。葉(xie)片式(shi)式(shi)：定子(zi)塊固定在缸(gang)(gang)體上，而葉(xie)片和轉(zhuan)子(zi)連(lian)接在一起。根據(ju)進油方向，葉(xie)片將(jiang)帶動(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)子(zi)作往(wang)復擺動(dong)(dong)(dong)(dong)(dong)(dong)。螺(luo)旋(xuan)擺動(dong)(dong)(dong)(dong)(dong)(dong)式(shi)又(you)分單螺(luo)旋(xuan)擺動(dong)(dong)(dong)(dong)(dong)(dong)和雙螺(luo)旋(xuan)兩(liang)種，現在雙螺(luo)旋(xuan)比較常(chang)用，靠兩(liang)個螺(luo)旋(xuan)副降液壓缸(gang)(gang)內活塞的直線(xian)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)變為直線(xian)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)與自(zi)轉(zhuan)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)的復he運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)，從而實現擺動(dong)(dong)(dong)(dong)(dong)(dong)運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)。
3、活塞滑移或(huo)爬(pa)行
液壓缸的活塞滑移或爬行將使液壓缸工(gong)作(zuo)不穩(wen)定。主要原(yuan)因如(ru)下：
(1)液(ye)壓(ya)缸(gang)(gang)內部(bu)澀滯。液(ye)壓(ya)缸(gang)(gang)內部(bu)零(ling)(ling)件裝(zhuang)配不(bu)當(dang)、零(ling)(ling)件變(bian)形(xing)、磨損或(huo)形(xing)位(wei)公差超限，動作(zuo)阻力過大(da)，使液(ye)壓(ya)缸(gang)(gang)活塞速度隨著行程(cheng)位(wei)置的(de)不(bu)同(tong)而變(bian)化，出現滑移或(huo)爬行。原(yuan)因大(da)多是由(you)于零(ling)(ling)件裝(zhuang)配質量差，表(biao)面有傷痕或(huo)燒結產(chan)生的(de)鐵屑(xie)，使阻力增大(da)，速度下降。
1、液(ye)壓缸內導(dao)(dao)向元(yuan)件(jian)摩擦力(li)不(bu)均勻產生(sheng)的低(di)速爬(pa)行，建議優先采(cai)(cai)用(yong)(yong)金屬(shu)作為(wei)導(dao)(dao)向支(zhi)(zhi)撐(cheng)，如ＱＴ５００－７、ＺＱＡＬ９－４等，如采(cai)(cai)用(yong)(yong)非(fei)金屬(shu)支(zhi)(zhi)撐(cheng)環，建議選用(yong)(yong)在(zai)油液(ye)中尺寸穩定性好的非(fei)金屬(shu)支(zhi)(zhi)撐(cheng)環，特別是(shi)熱膨脹系數應(ying)小，另(ling)外對支(zhi)(zhi)撐(cheng)環的厚度，必須(xu)嚴格(ge)控(kong)制尺寸公差和(he)厚度的均勻性。
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2、對于密封(feng)件材(cai)(cai)質問題引起的(de)(de)(de)液壓(ya)缸低速爬行(xing)，建議(yi)在工況(kuang)允許的(de)(de)(de)條件下，優先采用以聚四氟乙烯作為密封(feng)的(de)(de)(de)組(zu)合密封(feng)圈，如(ru)常用的(de)(de)(de)格萊圈、斯特封(feng)等(deng)(deng)等(deng)(deng)；如(ru)選唇(chun)口(kou)密封(feng)，建議(yi)材(cai)(cai)料優選丁晴橡膠或(huo)類似材(cai)(cai)料的(de)(de)(de)密封(feng)件，其跟隨(sui)性較(jiao)好。
