
威(wei)海力建液(ye)壓設(she)備廠
經(jing)營模式:生產加工
地址:山東(dong)省威海市羊亭孫家灘工業(ye)園
主營:液(ye)壓(ya)缸,油缸,液(ye)壓(ya)系統(tong)
業務熱線:
QQ:3049278720
(5)液(ye)壓(ya)缸初始(shi)動作(zuo)緩(huan)慢。在溫(wen)(wen)度較低的情況下,液(ye)壓(ya)油(you)(you)黏度大(da),流動性(xing)差,導致液(ye)壓(ya)缸動作(zuo)緩(huan)慢。改善方法(fa)是,更換黏溫(wen)(wen)性(xing)能較好的液(ye)壓(ya)油(you)(you),在低溫(wen)(wen)下可借(jie)助加熱(re)器或用機器自身加熱(re)以提升啟動時的油(you)(you)溫(wen)(wen),系統(tong)正常工(gong)作(zuo)油(you)(you)溫(wen)(wen)應保(bao)持在40℃左右。
2、工作(zuo)時不能驅(qu)動負載
主(zhu)要(yao)表現為活塞桿停位不(bu)準、推力不(bu)足、速度(du)下降、工作不(bu)穩定(ding)等,其(qi)原因是:





故(gu)障(zhang)檢查(cha)1:進油管堵塞
故障排(pai)除(chu):疏通油管、更換油液
故障檢查2:系(xi)統中有空(kong)氣
故障排除:從(cong)放氣孔排除
故障檢查3:齒輪泵(beng)軸承磨損(sun)或齒輪泵(beng)側板磨損(sun)
故障排除:更換齒(chi)輪(lun)泵軸承或側板(ban)
附注:叉車(che)液壓系統中排空氣(qi)方法:
提起(qi)起(qi)升(sheng)油缸,將液壓油注入至(zhi)標尺規(gui)定的(de)油位,使叉車負載額定載荷的(de)1/10左右(you),擰松起(qi)升(sheng)缸上(shang)的(de)放(fang)氣螺栓,操作叉車直(zhi)升(sheng)缸起(qi)升(sheng)、下降(jiang)數(shu)次(ci),直(zhi)到(dao)放(fang)氣螺塞(sai)(sai)處沒有氣泡時為止,然(ran)后(hou)擰緊(jin)放(fang)氣螺塞(sai)(sai)即可(ke)。
零部件加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)(du)的(de)影(ying)響(xiang)問題(ti),在(zai)液壓缸的(de)制造過程(cheng)中(zhong)應(ying)嚴格控制缸體(ti)內(nei)壁(bi)(bi)(bi)和活塞(sai)桿表面加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)(du),特別是幾(ji)何精度(du)(du),尤其(qi)直線度(du)(du)是關鍵,在(zai)國內(nei)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)中(zhong),活塞(sai)桿表面的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)基(ji)本(ben)上(shang)是車后(hou)磨(mo)(mo)削(xue),保證直線度(du)(du)問題(ti)不(bu)大,但對于缸體(ti)內(nei)壁(bi)(bi)(bi)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong),其(qi)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)方法很多,有(you)鏜削(xue)-滾(gun)壓、鏜削(xue)-珩(heng)(heng)磨(mo)(mo)、直接(jie)珩(heng)(heng)磨(mo)(mo)等,但由于國內(nei)材(cai)料(liao)的(de)基(ji)礎水平較國外(wai)有(you)差(cha)(cha)距,管材(cai)坯料(liao)直線度(du)(du)差(cha)(cha),壁(bi)(bi)(bi)厚不(bu)均(jun)勻(yun)、硬度(du)(du)不(bu)均(jun)勻(yun)等因素,往(wang)往(wang)直接(jie)影(ying)響(xiang)缸體(ti)內(nei)壁(bi)(bi)(bi)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)后(hou)的(de)直線度(du)(du),因此建議(yi)采用鏜削(xue)-滾(gun)壓、鏜削(xue)-珩(heng)(heng)磨(mo)(mo)工(gong)(gong)(gong)(gong)藝(yi),如直接(jie)珩(heng)(heng)磨(mo)(mo),則必須首(shou)先(xian)提高管材(cai)坯料(liao)的(de)直線度(du)(du)。
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在允(yun)許(xu)的情(qing)況下(xia)(xia),液壓(ya)(ya)缸(gang)的缸(gang)體壁厚安(an)全(quan)系(xi)數盡量選大一些,使缸(gang)體厚壁增加(jia),特別是高壓(ya)(ya)工(gong)況下(xia)(xia)使用(yong)的油(you)缸(gang),以減小(xiao)油(you)壓(ya)(ya)下(xia)(xia)的缸(gang)體變(bian)形,變(bian)形后的缸(gang)體也會引起液壓(ya)(ya)缸(gang)低(di)速爬行。