Double-post inclined type multi-pull-rod prestress machine frame of free forging hydrostatic press

Abstract

The invention provides a double-post inclined type multi-pull-rod prestress machine frame of a free forging hydrostatic press, which relates to a forging hydrostatic press. The invention solves the problems of poor integral rigidity, poor antifatigue intensity, poor load-deflection resistance capability and poor technical adaptability of a traditional machine frame. The invention is characterized in that two upright posts are in hollow rectangular structures, a plurality of high-intensity pull rods are placed in the two upright posts, both ends of the pull rods pass through an upper cross beam and a lower cross beam, the upper cross beam and the upright post, and the lower cross beam and the upright posts are respectively embedded through rectangular positioning keys, the pretensioning pull force is generated on the full length of the pull rods through pretensioning screw nuts, and pretensioning pressure is exerted on the upper cross beam, the lower cross beam and the upright posts at the same time, so the double-post prestress combined stressed machine frame is formed. The figure center connecting line of the two hollow rectangular upright posts is in inclined arrangement with an angle alpha correspondingly to the center line in the moving direction of a work table of the forging hydrostatic press. The invention can be applied to the free forging hydrostatic press, can also be applied to vertical hydrostatic presses of proper technology, and can be used for improving the traditional forging hydrostatic press.

Description

technical field [0001] The invention relates to a free forging hydraulic press, in particular to a frame of the free forging hydraulic press. Background technique [0002] The free forging hydraulic press is the key equipment for the production of forgings in the forging industry. The traditional free forging hydraulic press is a non-full prestressed frame structure with three beams and four cylinders. Under severe forging conditions, it must bear alternating loads with a large value in one direction. Rapid loading and sudden unloading often cause the frame to vibrate violently. and shaking. The circular tension column serves as both the frame and the tie rod, and also serves as the guide body of the movable beam. It not only bears the full tonnage of axial tension, but also always works under the unidirectional alternating tensile stress of a large value. During eccentric forging, it also It should bear the lateral thrust and bending moment of the movable beam, as well as...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a double-column oblique multi-rod prestressed frame for free forging hydraulic presses, and to solve the problem of the overall rigidity, fatigue resistance and partial load resistance of the traditional three-beam four-cylinder non-full prestressed frame Poor capacity and process adaptability, and high maintenance costs of the press

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