
威(wei)海力建(jian)液壓(ya)設備廠
經營模式:生產加(jia)工
地址(zhi):山東省(sheng)威(wei)海(hai)市羊亭孫(sun)家灘工業園
主營(ying):液壓缸(gang),油(you)缸(gang),液壓系統
業務熱線(xian):
QQ:3049278720
油缸是工(gong)(gong)程機(ji)械主(zhu)要部件,傳(chuan)統的(de)加工(gong)(gong)方法是:拉(la)削缸體(ti)(ti)(ti)(ti)——精鏜缸體(ti)(ti)(ti)(ti)——磨削缸體(ti)(ti)(ti)(ti)。采用滾(gun)壓方法是:拉(la)削缸體(ti)(ti)(ti)(ti)——精鏜缸體(ti)(ti)(ti)(ti)——滾(gun)壓缸體(ti)(ti)(ti)(ti),工(gong)(gong)序是3部分,但時間(jian)上對比:磨削缸體(ti)(ti)(ti)(ti)1米大概(gai)在1-2天的(de)時間(jian),滾(gun)壓缸體(ti)(ti)(ti)(ti)1米大概(gai)在10-30分鐘的(de)時間(jian)。投入對比:磨床或(huo)絎(heng)磨機(ji)(幾(ji)萬(wan)——幾(ji)百(bai)萬(wan)),滾(gun)壓刀(1仟——幾(ji)萬(wan))。滾(gun)壓后(hou),孔表面粗(cu)糙度(du)由(you)幢滾(gun)前Ra3.2~6.3um減小(xiao)為Ra0.4~0.8&um,





3、叉車叉架下降速度太快
故(gu)障檢查:節流閥卡(ka)在打開位置或裝反
故障排除:重(zhong)裝(zhuang)節流閥
4、叉車(che)起升(sheng)缸(gang)自由下滑量太大或傾(qing)斜缸(gang)自傾(qing)角太大
故障(zhang)檢查:換向閥閥桿內泄(xie)漏太大(da),傾斜缸活塞密封圈(quan)失(shi)效內漏
故障排除:更(geng)換閥桿(gan)或(huo)更(geng)換密(mi)封圈
5、液壓缸活塞桿帶油
故障檢查:油封是否損壞
故障排除:更換(huan)油封(威海力建冶金液壓設備廠推薦(jian))
零部件加(jia)工(gong)(gong)(gong)精度(du)(du)(du)的影響(xiang)(xiang)問題,在液壓(ya)缸的制(zhi)造過程中應嚴格控制(zhi)缸體內壁(bi)和活塞桿表(biao)面加(jia)工(gong)(gong)(gong)精度(du)(du)(du),特別是(shi)幾何精度(du)(du)(du),尤其直(zhi)(zhi)線(xian)度(du)(du)(du)是(shi)關鍵,在國內加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝中,活塞桿表(biao)面的加(jia)工(gong)(gong)(gong)基本上是(shi)車(che)后磨(mo)削,保證直(zhi)(zhi)線(xian)度(du)(du)(du)問題不大,但(dan)(dan)對于缸體內壁(bi)的加(jia)工(gong)(gong)(gong),其加(jia)工(gong)(gong)(gong)方法很多,有鏜(tang)削-滾壓(ya)、鏜(tang)削-珩磨(mo)、直(zhi)(zhi)接(jie)珩磨(mo)等(deng),但(dan)(dan)由于國內材料(liao)的基礎水平較國外(wai)有差距,管(guan)材坯料(liao)直(zhi)(zhi)線(xian)度(du)(du)(du)差,壁(bi)厚不均勻、硬(ying)度(du)(du)(du)不均勻等(deng)因素,往往直(zhi)(zhi)接(jie)影響(xiang)(xiang)缸體內壁(bi)加(jia)工(gong)(gong)(gong)后的直(zhi)(zhi)線(xian)度(du)(du)(du),因此建議采用鏜(tang)削-滾壓(ya)、鏜(tang)削-珩磨(mo)工(gong)(gong)(gong)藝,如直(zhi)(zhi)接(jie)珩磨(mo),則必須首(shou)先提高管(guan)材坯料(liao)的直(zhi)(zhi)線(xian)度(du)(du)(du)。
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在允許的情況下,液(ye)壓(ya)缸(gang)(gang)的缸(gang)(gang)體壁厚安全系數盡量選大一(yi)些,使(shi)缸(gang)(gang)體厚壁增加,特(te)別是(shi)高壓(ya)工(gong)況下使(shi)用的油缸(gang)(gang),以減(jian)小油壓(ya)下的缸(gang)(gang)體變形(xing)(xing),變形(xing)(xing)后的缸(gang)(gang)體也會引起液(ye)壓(ya)缸(gang)(gang)低速爬(pa)行。