A hoisting device for hot processing of large ring forgings

Abstract

The invention belongs to the field of advanced manufacturing, in particular to a hoisting device for hot processing of large-scale ring forgings, which includes three parts: a top lug frame, a middle beam support frame and a bottom hook; The hanging tube is connected by welding; the middle beam support frame is connected by a support ring, a beam, an L-shaped hook block and a reinforcing rib by welding; the bottom hook is used for direct contact with the ring. The use of the present invention can make the ring parts be evenly stressed in the process of hoisting large ring forgings after ring rolling and heat treatment, without deformation under the action of its own gravity, and the hanger itself is stable without shaking, ensuring product quality and making The product repair rate is reduced from 10% to 3%, which greatly shortens the production cycle and saves production costs.

Description

technical field [0001] The invention belongs to the field of ring forging, in particular to a large-scale ring forging hot processing hoisting device. Background technique [0002] To solve the hoisting problem of large ring forgings in the manufacturing process, the hot processing process of large ring forgings is: ingot - heating - forging - heating - billet making - heating - ring rolling - heat treatment, the device is mainly used after ring rolling and heat treatment process The lifting ring is used. The outer diameter of large ring forgings after ring rolling is generally 5.5m to 7.8m, and the weight is 12t to 30t. The existing hoisting device has only three hooks. During the hoisting process, the three hooks have low thermal ring strength and relatively large diameter. Large, under the action of its own gravity, the ring forging will be deformed such as warping and ellipse, which will affect the subsequent processing and cannot be adjusted according to the size of th...

AI Technical Summary

Problems solved by technology

The outer diameter of large ring forgings after ring rolling is generally 5.5m to 7.8m, and the weight is 12t to 30t. The existing hoisting device has only three hooks, and the strength of the three hooks is very low during hoisting due to the low strength of the hot ring and the relatively small diameter. Large, under the action of its own gravity, the ring forging will be warped, elliptical and other deformations, which will affect the subsequent processing and cannot be adjusted according to the size of the ring

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