采(cai)用(yong)(yong)同(tong)(tong)(tong)步(bu)(bu)千(qian)斤(jin)(jin)頂(ding)(ding)實(shi)現(xian)雙(shuang)千(qian)斤(jin)(jin)頂(ding)(ding)同(tong)(tong)(tong)步(bu)(bu)，在(zai)(zai)液(ye)壓回(hui)路中增加一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)(ge)單(dan)(dan)作(zuo)用(yong)(yong)油(you)缸(gang)(gang)報(bao)價(jia)(jia)使(shi)之(zhi)與另兩(liang)個(ge)(ge)(ge)(ge)(ge)(ge)工作(zuo)單(dan)(dan)作(zuo)用(yong)(yong)油(you)缸(gang)(gang)報(bao)價(jia)(jia)實(shi)現(xian)串聯而實(shi)現(xian)兩(liang)個(ge)(ge)(ge)(ge)(ge)(ge)工作(zuo)千(qian)斤(jin)(jin)頂(ding)(ding)的(de)(de)(de)(de)同(tong)(tong)(tong)步(bu)(bu)。在(zai)(zai)液(ye)壓系統(tong)回(hui)路中加一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)(ge)同(tong)(tong)(tong)步(bu)(bu)用(yong)(yong)單(dan)(dan)作(zuo)用(yong)(yong)油(you)缸(gang)(gang)報(bao)價(jia)(jia)使(shi)雙(shuang)千(qian)斤(jin)(jin)頂(ding)(ding)同(tong)(tong)(tong)步(bu)(bu)，在(zai)(zai)這個(ge)(ge)(ge)(ge)(ge)(ge)系統(tong)中所使(shi)用(yong)(yong)的(de)(de)(de)(de)實(shi)現(xian)雙(shuang)單(dan)(dan)作(zuo)用(yong)(yong)油(you)缸(gang)(gang)報(bao)價(jia)(jia)同(tong)(tong)(tong)步(bu)(bu)的(de)(de)(de)(de)千(qian)斤(jin)(jin)頂(ding)(ding)是(shi)與原承載(zai)兩(liang)個(ge)(ge)(ge)(ge)(ge)(ge)千(qian)斤(jin)(jin)頂(ding)(ding)相同(tong)(tong)(tong)的(de)(de)(de)(de)千(qian)斤(jin)(jin)頂(ding)(ding)。 而在(zai)(zai)這個(ge)(ge)(ge)(ge)(ge)(ge)單(dan)(dan)作(zuo)用(yong)(yong)油(you)缸(gang)(gang)報(bao)價(jia)(jia)里的(de)(de)(de)(de)油(you)永遠不會(hui)回(hui)到油(you)箱。所以(yi)，中間千(qian)斤(jin)(jin)頂(ding)(ding)需要認真排氣與補油(you)。通過中間千(qian)斤(jin)(jin)頂(ding)(ding)與兩(liang)個(ge)(ge)(ge)(ge)(ge)(ge)承載(zai)千(qian)斤(jin)(jin)頂(ding)(ding)的(de)(de)(de)(de)連接實(shi)現(xian)力(li)(li)的(de)(de)(de)(de)傳(chuan)遞和位移的(de)(de)(de)(de)傳(chuan)遞。但此(ci)時所需要的(de)(de)(de)(de)油(you)泵的(de)(de)(de)(de)流量僅僅是(shi)前(qian)述(shu)幾個(ge)(ge)(ge)(ge)(ge)(ge)系統(tong)小(xiao)一(yi)(yi)半，而壓力(li)(li)應是(shi)前(qian)述(shu)系統(tong)的(de)(de)(de)(de)兩(liang)倍。

工作原(yuan)理：泵吸(xi)油(you)(you)(you)過(guo)程當用(yong)手提起(qi)杠(gang)桿手柄(bing)1時，小活(huo)塞就被帶動上行，泵體(ti)中(zhong)(zhong)(zhong)的(de)(de)密封工作容積便大。這時由于排油(you)(you)(you)單(dan)向(xiang)閥(fa)和放油(you)(you)(you)閥(fa)分(fen)別(bie)關閉(bi)了它們各自所在(zai)的(de)(de)油(you)(you)(you)路，所以在(zai)泵體(ti)2中(zhong)(zhong)(zhong)的(de)(de)工作容積大形成(cheng)了部分(fen)真空。在(zai)大氣壓的(de)(de)作用(yong)下，油(you)(you)(you)箱中(zhong)(zhong)(zhong)的(de)(de)油(you)(you)(you)液經油(you)(you)(you)管打(da)開吸(xi)油(you)(you)(you)單(dan)向(xiang)閥(fa)4流(liu)入泵體(ti)2中(zhong)(zhong)(zhong)，完成(cheng)一次吸(xi)油(you)(you)(you)動作。

泵壓(ya)(ya)油(you)和重(zhong)(zhong)物(wu)舉升過(guo)程，當壓(ya)(ya)下杠桿手(shou)柄(bing)l時，帶動小活塞(sai)下移(yi)，泵體中的小油(you)腔工作(zuo)容積減小，便把其(qi)中的油(you)液(ye)擠出，推(tui)開排(pai)油(you)單向(xiang)閥(fa)，油(you)液(ye)便經(jing)油(you)管進入(ru)液(ye)壓(ya)(ya)缸(gang)，由于液(ye)壓(ya)(ya)缸(gang)也是一個(ge)密封的工作(zuo)容積，所以(yi)進入(ru)的油(you)液(ye)因受擠壓(ya)(ya)而產生的作(zuo)用力就會推(tui)動大活塞(sai)上升，并將重(zhong)(zhong)物(wu)頂起做功(gong)。反復提(ti)、壓(ya)(ya)杠桿手(shou)

柄，就(jiu)可以使(shi)重(zhong)(zhong)物不斷上升，達到(dao)(dao)起(qi)重(zhong)(zhong)的目的。重(zhong)(zhong)物落下(xia)(xia)過程(cheng)：需(xu)要大活塞向下(xia)(xia)返回(hui)時，將(jiang)放油閥開啟，則在(zai)重(zhong)(zhong)物自重(zhong)(zhong)的作(zuo)用(yong)下(xia)(xia)，液(ye)壓缸中的油液(ye)流(liu)回(hui)油箱，大活塞就(jiu)下(xia)(xia)降(jiang)到(dao)(dao)原位。

1、如需幾只電動單作用(yong)(yong)油(you)缸報(bao)價同(tong)時起(qi)重時請選(xuan)(xuan)用(yong)(yong)TYZF型(xing)同(tong)步(bu)千(qian)斤頂(ding)(ding)(ding)，除(chu)應(ying)正確(que)安放大(da)噸位(wei)電動千(qian)斤頂(ding)(ding)(ding)外，應(ying)使用(yong)(yong)多頂(ding)(ding)(ding)分(fen)流閥，且每(mei)臺大(da)噸位(wei)電動千(qian)斤頂(ding)(ding)(ding)的(de)負(fu)荷應(ying)均(jun)衡，單作用(yong)(yong)油(you)缸報(bao)價，注(zhu)意(yi)保持起(qi)升速(su)度(du)同(tong)步(bu)。還必須(xu)考慮因重量不勻地面可能下(xia)(xia)陷(xian)的(de)情況，防止(zhi)被舉重物產生(sheng)傾斜而(er)發生(sheng)危險。2、使用(yong)(yong)時先(xian)將手動泵(beng)的(de)快速(su)接頭與頂(ding)(ding)(ding)對接，然后選(xuan)(xuan)好位(wei)置，將油(you)泵(beng)上的(de)放油(you)螺釘旋緊(jin)，即可工作。欲使活塞桿(gan)下(xia)(xia)降，將手動油(you)泵(beng)手輪按逆時針方向(xiang)微(wei)微(wei)旋song，油(you)缸卸(xie)荷，活塞桿(gan)即逐漸(jian)下(xia)(xia)降。否則下(xia)(xia)降速(su)度(du)過快將產生(sheng)危險。