液壓千斤頂使用注意事項
1液(ye)壓(ya)千(qian)斤(jin)(jin)(jin)頂在(zai)頂升作業時,要選(xuan)擇合(he)(he)適噸位的液(ye)壓(ya)千(qian)斤(jin)(jin)(jin)頂:承載(zai)能力(li)不可(ke)超(chao)負荷(he),選(xuan)擇液(ye)壓(ya)千(qian)斤(jin)(jin)(jin)頂的承載(zai)能力(li)需大(da)于(yu)(yu)重物重力(li)的1.2倍;液(ye)壓(ya)千(qian)斤(jin)(jin)(jin)頂最低高度(du)合(he)(he)適,為了便于(yu)(yu)取出,選(xuan)用(yong)液(ye)壓(ya)千(qian)斤(jin)(jin)(jin)頂的最小高度(du)應(ying)與重物底部施力(li)處(chu)的凈(jing)空相(xiang)適應(ying),起落過程中(zhong)墊枕(zhen)木(mu)(mu)支持重物時,液(ye)壓(ya)千(qian)斤(jin)(jin)(jin)頂的起升高度(du)要大(da)于(yu)(yu)枕(zhen)木(mu)(mu)厚度(du)與枕(zhen)木(mu)(mu)變形之和(he)。
2若使用(yong)多臺液壓千斤(jin)頂(ding)(ding)頂(ding)(ding)升同一設備時,應選用(yong)同一型號的液壓千斤(jin)頂(ding)(ding),且每臺液壓千斤(jin)頂(ding)(ding)的額定起(qi)重量(liang)之和不(bu)得小于所承擔設備重力的1.5倍。
3液壓(ya)千斤頂在使用前(qian)應擦拭干凈(jing),并(bing)應檢查各部(bu)件是否靈活,有無損傷,在有載荷時切忌將快速接頭(tou)卸下,以免發(fa)生(sheng)事故及損壞部(bu)件。
4液壓(ya)千斤頂(ding)在使用前應放置平(ping)整,不能傾斜(xie),底部要(yao)墊(dian)平(ping),嚴防(fang)(fang)地基偏(pian)沉或(huo)載荷偏(pian)移而使液壓(ya)千斤頂(ding)傾斜(xie)或(huo)翻倒,可(ke)在液壓(ya)千斤頂(ding)底部墊(dian)堅韌的(de)枕術或(huo)鋼板來(lai)擴大(da)承壓(ya)面積,以免(mian)陷落(luo)或(huo)滑(hua)動而發生事(shi)故(gu);切勿用有(you)油(you)污的(de)木板或(huo)鋼板作為襯墊(dian),防(fang)(fang)止受力(li)時(shi)打滑(hua),發生安全事(shi)故(gu);重物(wu)被頂(ding)升(sheng)位(wei)置必(bi)須是安全、堅實的(de)部位(wei),以防(fang)(fang)損壞設備。
5使(shi)用(yong)液(ye)壓(ya)(ya)千斤頂(ding)時,應(ying)先將重物先試頂(ding)起(qi)一(yi)部分,仔細檢查(cha)液(ye)壓(ya)(ya)千斤頂(ding)無(wu)異(yi)常后(hou)(hou),再繼續(xu)頂(ding)升重物。若發(fa)現墊(dian)板受壓(ya)(ya)后(hou)(hou)不平整、不牢固或液(ye)壓(ya)(ya)千斤頂(ding)有傾斜(xie)時,必(bi)須(xu)將液(ye)壓(ya)(ya)千斤頂(ding)卸壓(ya)(ya)回程,及時處理好后(hou)(hou)方可再次操作。
6在頂升(sheng)過程中(zhong),應隨重(zhong)物(wu)的(de)不斷上升(sheng)及時(shi)在液(ye)(ye)壓千斤(jin)(jin)頂下方鋪墊保險枕木(mu)(mu)架(jia),以(yi)防(fang)液(ye)(ye)壓千斤(jin)(jin)頂傾(qing)斜(xie)或引起活塞突然下降而造(zao)成事(shi)故(gu),下放重(zhong)物(wu)時(shi)要逐步向外抽出(chu)枕木(mu)(mu),枕木(mu)(mu)與重(zhong)物(wu)間的(de)距(ju)離(li)不得超過一塊(kuai)枕木(mu)(mu)的(de)厚(hou)度(du),以(yi)防(fang)意外!
7若重(zhong)物(wu)的(de)頂(ding)升高度(du)需超出液(ye)壓千(qian)斤頂(ding)額定高度(du)時(shi),需先(xian)在液(ye)壓千(qian)斤頂(ding)頂(ding)起的(de)重(zhong)物(wu)下墊好枕(zhen)木(mu),降下液(ye)壓千(qian)斤頂(ding),墊高其底部,重(zhong)復頂(ding)升,直(zhi)至(zhi)需要的(de)起升高度(du)。
8液壓(ya)千斤(jin)(jin)頂(ding)不(bu)(bu)可作為永(yong)久支承設(she)備。如需(xu)長時間(jian)支承,應在重(zhong)物下方增加支承部分,以保證液壓(ya)千斤(jin)(jin)頂(ding)不(bu)(bu)受損壞(huai)。
9若頂升(sheng)重(zhong)(zhong)(zhong)物(wu)一(yi)端只(zhi)用(yong)一(yi)臺液(ye)壓(ya)(ya)千(qian)(qian)(qian)斤(jin)頂時,則應將(jiang)液(ye)壓(ya)(ya)千(qian)(qian)(qian)斤(jin)頂放(fang)置在重(zhong)(zhong)(zhong)物(wu)的對(dui)稱(cheng)軸(zhou)線上,并使液(ye)壓(ya)(ya)千(qian)(qian)(qian)斤(jin)頂底(di)座(zuo)長的方向和重(zhong)(zhong)(zhong)物(wu)易傾倒的方向一(yi)致。若重(zhong)(zhong)(zhong)物(wu)一(yi)端使用(yong)兩(liang)臺液(ye)壓(ya)(ya)千(qian)(qian)(qian)斤(jin)頂時,其(qi)底(di)座(zuo)的方向應略呈八字形對(dui)稱(cheng)放(fang)置于重(zhong)(zhong)(zhong)物(wu)對(dui)稱(cheng)軸(zhou)線兩(liang)側。
10使用兩(liang)臺或多臺液壓千斤頂同(tong)時頂升(sheng)作業時,須統一指(zhi)揮、協(xie)調一致(zhi)、同(tong)時升(sheng)降。
11液(ye)壓(ya)千斤頂應存放在(zai)干燥(zao)、無塵的地方,不適(shi)宜在(zai)有酸堿,腐蝕性氣(qi)體的工作場所使用,更(geng)不能放在(zai)室(shi)外日曬雨淋!
操作時應嚴格遵守技術規范,用戶需根據使用情況定期檢查和保養。