A kind of manufacturing method of large-diameter folding table spoke wheel

Abstract

The invention discloses a method for manufacturing a large-diameter folding table radial plate wheel. The method includes the following processes of blank sawing, heating before forging, forging, rolling and bending, wherein the forging process includes pressing to form a folding table of a wheel radial plate on a forming blank during wheel forming, and reasonably distributing metal quantity inside and outside the folding table at a preforming stage; the rolling process includes enabling interference not to be generated between a radial plate roller during rolling and the folding table, and reserving a noncontact angle between an inner diameter face of the wheel and a profile of the radial plate roller; the bending process includes adopting a bending mode of enabling a bending die to be fitted with a concave-side radial plate of the folding table during bending, and reserving a space at a position, close to the folding table, of the bending die during positioning of the bending die. By the method, potential risk generated to the folding table radial plate wheel by a conventional wheel rolling method is avoided, metal yield and production efficiency are improved, and stable and mass production of the wheel is realized.

Description

technical field [0001] The invention relates to a production method of a wheel, in particular to a method for manufacturing a large-diameter folding platform spoke wheel with a diameter of more than 1000mm and a folding platform on the spoke. Background technique [0002] The large-diameter folding table wheel is used on the high-speed locomotive wheel. Depend on figure 1 As shown, the spoke wheel with folding platform has a folding platform in the middle section of its spoke plate, and there is a drop △ in the center line of the spoke plate of the spoke plate wheel with folding platform. Such as image 3 As shown, the web centerline of the conventional wheel is smooth and coherent. The applicant found that using the conventional wheel rolling method to produce the large-diameter folding platform web wheel has the following defects: the deformation resistance of the large-diameter wheel during rolling is large, and the rolling is stable. The rolling quality is poor and th...

AI Technical Summary

Problems solved by technology

like image 3 As shown, the web centerline of the conventional wheel is smooth and coherent. The applicant found that using the conventional wheel rolling method to produce the large-diameter folding platform web wheel has the following defects: the deformation resistance of the large-diameter wheel during rolling is large, and the rolling is stable. The rolling quality is poor and the rolling quality is not high; the wheel rolling mill itself can only roll out the web with a straight center line of the web; the eccentricity generated during wheel rolling will affect the margin distribution at the folding table of the web; During bending, because the steel temperature has generally dropped to 900°C, the web plate cracking is likely to occur at the folding platform with severe deformation; the thickness control of the web plate fluctuates greatly during the rolling process of large-diameter wheels, and it is difficult to ensure the bending after bending. Parallelism of the inner and outer webs of the platform

Conventional wheel rolling methods cannot adapt to the production of large-diameter folding table webs, especially when the wheel diameter D exceeds 1000mm, the wheel deformation resistance is large, and the production difficulty is intensified

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