Adjustable clearance guide rail of pre stressed stand in large scale forging pump press

A hydraulic press and prestressing technology, applied in the direction of presses, forging/pressing/hammering machines, forging/pressing/hammer devices, etc., can solve the problems of reduced reliability and service life of columns, large thermal deformation of components, and decreased accuracy of hydraulic presses, etc. problem, to achieve the effect of improving reliability and anti-eccentric moment ability, high dimensional and shape accuracy, and improving fatigue resistance

Active Publication Date: 2007-05-09
CHINA FIRST HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The column is prestressed connected with the upper beam and the lower beam by the inner and outer nuts respectively, and the column between the upper and lower beams is not prestressed, and this part accounts for 2/3 of the length of the entire stressed part; , The column section between the lower beam and the movable beam are affected by the eccentric moment of the forging process, which makes the force of the column in this part very complicated. There are both axial tensile force and bending moment. The above load is Alternate cycle, the reliability and service life of the column are greatly reduced, and co

Method used

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  • Adjustable clearance guide rail of pre stressed stand in large scale forging pump press
  • Adjustable clearance guide rail of pre stressed stand in large scale forging pump press

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Embodiment Construction

[0011] In the embodiment shown in Fig. 1-Fig. 3, the column (5) is made into a square shape, the slide plate (13) is fastened on the column (5) by screws, and the tension bolt (1) connects the upper cross beam through the nut (2). (3) and the lower beam (6) are pre-tightened on the column (5), and the column (5) is fixed between the upper beam (3) and the lower beam (6); the movable beam (4) is sleeved on the column (5) on the surface of the slide plate (13), the movable crossbeam (4) is close to the upper and lower surfaces of the slide plate (13) to install wedge backing plates (10), which are fixed by the wedge backing plate fixing bolts (11); the movable crossbeam (4) is close to the slide plate (13) Bolts (7) are screwed into the upper and lower facades of the upper and lower facades, and the wedge-shaped guide plate (12) is inserted between the wedge backing plate (10) and the slide plate (13). 7), the adjusting gasket (9) is sleeved on the bolt (7), between the façade o...

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PUM

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Abstract

A gap-adjustable guide track unit for the pre-stressed machine frame of large hydraulic press used for forging is composed of pull screw bolts, nuts, top and bottom transverse beams, square vertical posts between top and bottom transverse beams, movable transverse beam, regulating spacers, wedged guide plate, wedged pads and their fixing screw bolts, and slide plates for said square vertical posts.

Description

Technical field [0001] The invention relates to an adjustable gap guide rail for a prestressed frame of a large forging hydraulic press, which is a manufacturing technology for manufacturing a prestressed frame of a large forging hydraulic press, and is especially suitable for large and high-precision free forging hydraulic presses, belonging to the technical field of large forging hydraulic presses. Background technique [0002] At present, the column of the known free forging hydraulic press adopts a cylindrical guide method, which bears the working load of the hydraulic press, and the movable beam moves up and down on the outer surface of the cylinder through the guide sleeve supported by the spherical bearing, so that it is in the upper and lower position. The forging is deformed between the dies to complete the forging process. The column is prestressed connected with the upper beam and the lower beam by the inner and outer nuts respectively, and the column between the ...

Claims

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Application Information

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IPC IPC(8): B21J13/04
CPCB21J13/04B30B15/041
Inventor 吴生富马克宋清玉于兆卿周维海王忠玉殷文齐
Owner CHINA FIRST HEAVY IND
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