| 摘要 |
FIELD: mechanical engineering. ^ SUBSTANCE: invention relates to creating or modifying vertical hydraulic presses of different application. Proposed press contains upper cross rail and bed frame clamped by columns along which ram with upper tool travels, and intermediate plate with drawout table with lower tool secured on table. Bed frame is furnished with hydraulic cylinders and vertical tie rods from side of lower surface. Trunnions rigidly attached to intermediate plate are found on side surfaces of intermediate plate. Trunnions and bed frame are provided with holes through which vertical tie rods pass. Heads resting on trunnions are made on upper ends of tie rods. Lower ends of tie rods are connected with hydraulic cylinders by nuts. Plungers of hydraulic cylinders rest through spherical washers of lower surface of frame. Hydraulic cylinders are powered by constant liquid pressure from press hydraulic drive. ^ EFFECT: reduced wear of mating surfaces of intermediate plate and bed frame, reduced labor input at repairing, improved precision of drop castings. ^ 1 ex, 2 dwg |
