Rotary rolling forging device for gyrorotor forging

Abstract

The invention relates to a rotary rolling forging device for a rotary forging, comprising a rotating shaft (2), on which a left rotating rotor (3) and a right rotating rotor (4) are sleeved, and the rotating shaft ( The two ends of 2) are installed on the fixed sleeve (1) through interference fit, and the fixed sleeve (1) is installed on the press (6) through the bolt (5). The rotation centers of the fixed sleeve (1), the left-rotating rotor (3) and the right-rotating rotor (4) coincide, and the press (6) can drive the left-rotating rotor (3) and the right-rotating rotor (4) to move downward ; Place the blank (8) under the left-rotating rotor (3) and the right-rotating rotor (4), the blank (8) is fixedly installed on the lower die (9), and the center of rotation between the blank (8) and the lower die (9) The line coincides with the centerline of rotation (7) of the rotating shaft (2), and the rough platform of the rotary pier of the press drives the blank (8) and the lower die (9) to rotate along the centerline of revolution (7). The tonnage of the press required by the device of the invention is relatively low, the surface quality of the obtained forging is good, and the internal deformation of the forging is continuous, without folding and uniform in structure.

Description

technical field [0001] The invention relates to a rotary rolling forging device for a rotary forging, which belongs to the technical field of metal material forging. Background technique [0002] With the development of aviation, shipbuilding and other industrial fields, the demand for large-scale rotary forgings made of large stainless steel, high-temperature alloys, titanium alloys, etc. is increasing, and the demand for low-cost forming and uniform structure is also becoming more and more urgent. . Forging forming is an important technical means for forming large-scale rotary structural parts. At present, the forging method is mainly obtained by die forging or isothermal forging, which requires a huge rated tonnage of the press and high cost. The forging force required for the closed die forging of the impeller disc with an outer diameter of 1180mm for a certain type of centrifugal fan is more than 80,000 tons, exceeding the current largest equipment tonnage in China. ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a rotary rolling forging device for forming large-scale rotary forgings. Discontinuous forging deformation, uneven structure, low material utilization rate and high forging cost of forgings

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