A Core Roller Device of a Large Vertical Composite Ring Rolling Machine

Abstract

The invention provides a core roller device for a large-scale vertical composite ring rolling machine. The core roller device comprises a core roller, a fixed support seat, a movable support seat, a core roller base, an ascending and descending driving device, wherein the two ends of the core roller are respectively connected with the upper ends of the fixed support seat and the movable support seat, the lower ends of the fixed support seat and the movable support seat are respectively and fixedly arranged at the two ends of the upper plane of the core roller base, the ascending and descending driving device is arranged in the middle position of the upper plane of the core roller base, and the lower end of the movable support seat is connected with the ascending and descending driving device, so that the movable support seat vertically moves, the outer side of the fixed support seat is connected with a rotating driving device, the core roller can be driven to do autorotation, the outer side of the rotating driving device is connected with a positioning baffle plate mechanism, and in addition, the precise positioning of a baffle plate is realized through installing a displacement sensor. The core roller device has the advantages that the structure is simple, reliability and practicability are realized, the installation and the debugging are convenient, and the rejection product loss can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of vertical ring rolling machines, in particular to a core roll device of a large vertical composite ring rolling machine. Background technique [0002] With the continuous development of the national economy and national defense construction, the proportion of large and complex rings used in industry is increasing. Large thick-walled deep groove rings with a diameter of more than 1 meter and complex cross-sectional shapes, such as bilateral flanges, High-pressure ball valve bodies, oil pipeline end joints and slewing bearings are widely used in construction machinery, electric power, petrochemical and other fields. Composite ring rolling process is a new technology for forming such rings. It has the advantages of low consumption, high efficiency, and high-quality forming. The forming of such rings is divided into two stages: 1) Ordinary ring rolling stage. Under the action of rotation and core roll feeding...

AI Technical Summary

Problems solved by technology

[0003] The main structure of the current small compound ring rolling machine is based on the original D51 type vertical hot ring rolling machine, and the guide roll and measuring roll parts are transformed into a pair of auxiliary rolls. The core roll device still uses the original D51 type. The structure of the vertical hot rolling ring machine, because the thick-walled deep-groove ring with a diameter of more than 1 meter has a large weight and axial height, and is vertically sleeved on the core roll, the weight of the ring billet is entirely borne by the core roll. When the pressure wheel rotates and rolls, it must overcome the moment of inertia and rotational resistance of the ring billet and the core roll, especially for the rough billet with poor quality. Therefore, the modified equipment is not suitable for the diameter For the compound rolling forming of thick-walled and deep-groove rings over 1m, it is necessary to develop new compound rolling ring equipment and its key components

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