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HYDRAULIC PRESS

机译:液压机

摘要

FIELD: technological processes.;SUBSTANCE: invention relates to metal forming. Press comprises power cylinder, pump station, hydraulic multiplier consisting of coaxially installed low-pressure cylinder and at least one high-pressure cylinder. System of distributors includes a four-way three-position reversible slide valve, the inputs of which are connected to the pressure and drain lines of the pump station. One of the outlets is connected to the return cavity of the power cylinder. In the system there is a three-way two-position slide valve, the input of which is connected to the second outlet of the reversible slide valve, the closed output – to the working cavity of the power cylinder, and the open output – to the low-pressure cylinder of the multiplier. Three-way two-position slide valves are connected to all high-pressure cylinders, their closed outputs being connected to the drain. Open outputs through normally open two-way two-position shut-off valve are connected to working cavity of power cylinder and through normally closed two-way two-position shut-off valve – with return cavity of power cylinder.;EFFECT: as a result, expansion of technological capabilities of press and reduction of installed capacity of pumps.;1 cl, 1 dwg
机译:技术领域本发明涉及金属成型。压力机包括动力缸,泵站,由同轴安装的低压缸和至少一个高压缸组成的液压倍增器。分配器系统包括一个四通三位可逆滑阀,其输入连接到泵站的压力和排放管线。出口之一连接至动力缸的回流腔。在系统中,有一个三通二位滑阀,其输入连接到可逆滑阀的第二个出口,关闭的输出(到动力缸的工作腔),打开的输出到乘法器的低压缸。三通二位滑阀连接到所有高压缸,其关闭输出连接到排放口。通过常开二通二位截止阀打开的输出连接到动力缸的工作腔,并通过常闭二通二位截止阀–带有动力缸的回油腔。结果,扩大了压机的技术能力并降低了泵的安装能力。; 1 cl,1 dwg

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