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近年来,国外广泛采用下拉式油泵直接传动的锻造液压机。这种压机比正装式泵-蓄势器传动的锻造液压机有许多优点。下面介绍苏联第聂伯彼得罗夫斯克重型压机生产联合公司制造的1250tf锻造液压机的实验研究。 1250tf锻造液压机的性能和参数公称压力(tf) 1250活动框架最大行程(mm) 1250速度(mm/s) 空程向下速度 360,120 回程速度 300,120 额定载荷工作速度 100锻造精度(m m) ±1.5最大工作压力(Mp_a) 32主泵额定流量(L/min) 2000主传动额定功率(kW) 1000
In recent years, extensive use of pull-down pumps directly drive forging hydraulic machine. This type of press has many advantages over a sump type accumulator-accumulator powered forging press. The following is an experimental study of a 1250 tf forging hydraulic press manufactured by the United Press of Heavy Duty Press in Dnepropetrovsk, the United States. 1250tf Forging hydraulic machine performance and parameters Nominal pressure (tf) 1250 Maximum travel of the movable frame (mm) 1250 Speed (mm / s) Spread Downward speed 360,120 Backward speed 300,120 Rated load Working speed 100 Forging precision (mm) ± 1.5 Maximum work Pressure (Mp_a) 32 Main pump rated flow (L / min) 2000 Main drive rated power (kW) 1000