CN2845937Y

CN2845937Y - Roller device for steel mill

Info

Publication number: CN2845937Y
Application number: CN 200520031741
Authority: CN
Inventors: 刘守胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-05
Filing date: 2005-09-05
Publication date: 2006-12-13
Anticipated expiration: 2015-09-05

Abstract

The utility model discloses a roller device used for a rolling mill, which comprises a pair of pressing seats, which is connected with a rolling mill, a supporting roller and a working roller which are respectively arranged on each of the pressing seats, wherein the inner surface of each of the pressing seats is provided with a plurality of supporting beams, the inner surfaces of which are provided with fan-shaped cylindrical faces side by side in the axial direction of the pressing seat; a bearing shell is respectively arranged on the fan-shaped cylindrical face of each of the supporting beams; the bearing shell is matched with the corresponding supporting roller in a rolling mode through a plurality of groups of cylindrical rolling bodies which are arranged on the surface of the bearing shell; the cylindrical rolling bodies are connected with each other through a chain; the working roller is combined with the corresponding supporting roller in the mode of roller face rolling. The utility model has the advantages that the bending deformation of the working roller is small, and the quality of the rolled steel plates is ensured; after the supporting roller is worn out, the shaft line position of roller shafts is adjusted through adjusting the thickness of the bearing shell and the outer diameter of each of the rolling bodies; therefore, the heat radiation problem is solved through the exposition of each of the rolling bodies, the service life of each of the rolling bodies is prolonged and the equipment investment of enterprises is saved.

Description

The roll device that is used for rolling mill

Technical field

The utility model relates to rolling mill, especially relates to the roll device that is used for rolling mill.

Background technology

The most frequently used backing roll and the supporting form of rolling mill roughly is divided into following two kinds at present, the one, backing roll is by the bearings at two ends, the stressed bending of so wayward roll of roll device, template after rolling is difficult to control, and the rolling element unbalance stress in the two supports bearing is added the restriction of roll external diameter simultaneously, make that the bearing capacity of bearing is often not enough, influenced the service life of bearing, the body of roll is longer, and the problems referred to above are just more outstanding.The 2nd, backing roll supports with back lining bearing, this design feature makes bearing size seriously limited, bearing capacity is also corresponding to be restricted, this kind structure is higher to relevant parts required precision, the difficulty and the cost of device fabrication have been increased, and because the heat radiation of back lining bearing is bad, its life-span is difficult to meet the demands.

The utility model content

The purpose of this utility model is to provide the roll device that is used for rolling mill that a kind of bearing capacity is strong, the working roller bending distortion is little and operating cost is low.

For achieving the above object, the utility model can adopt following technical proposals:

The roll device that is used for rolling mill described in the utility model, it comprises a pair of wedge that is connected with rolling mill, is separately positioned on backing roll and working roll on each wedge, inner surface at described wedge axially is arranged side by side the backbar that a plurality of inner surfaces have the fan-shaped face of cylinder along it, is respectively arranged with a bearing shell on the fan-shaped face of cylinder of each backbar; Described bearing shell cooperates with described corresponding backing roll rolling by the many groups cylinder rolling element that is arranged on its tiling; Described many group cylinder rolling elements connect by chain; Between described working roll and the corresponding backing roll with roll surface rolling combination.

Advantage of the present utility model is that many group cylinder rolling elements act on the outer peripheral face of roll shaft, make the roll carrying evenly, and bearing capacity are strong; Be not subjected to the restriction of draw ratio (L/D) in principle, barrel length significantly can extend; And between backing roll and the backing roll and be to roll by roll surface to cooperate between backing roll and the working roll, so working roller bending is out of shape for a short time, guaranteed the plate quality that rolls out.This kind roll device is simple in structure, and parts are few, makes it handling ease, and production cost is low; Behind the supporting roller abrasion, the thickness that can be by adjusting bearing shell and the external diameter of rolling element are adjusted the axial location of roll shaft, and exposing of rolling element makes heat dissipation problem be resolved, and prolonged the service life of rolling element, saved the equipment investment of enterprise.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 be Figure 1A-A to cutaway view.

The specific embodiment

As shown in the figure, the roll device that is used for rolling mill described in the utility model, it comprises a pair of wedge 1 that is connected with rolling mill, is separately positioned on backing roll 2 and working roll 3 on each wedge 1, inner surface at described wedge 1 axially is arranged side by side the backbar 4 that a plurality of inner surfaces have the fan-shaped face of cylinder along it, is respectively arranged with a bearing shell 5 on the fan-shaped face of cylinder of each backbar 4; Described bearing shell 5 cooperates with described corresponding backing roll 2 rollings by the many groups cylinder rolling element 6 that is arranged on its tiling; Described many group cylinder rolling elements 6 connect by chain; Between described working roll 3 and the corresponding backing roll 2 with roll surface rolling combination.

Claims

1, a kind of roll device that is used for rolling mill, it comprises a pair of wedge (1) that is connected with rolling mill, is separately positioned on backing roll (2) and working roll (3) on each wedge (1), it is characterized in that: the inner surface at described wedge (1) axially is arranged side by side the backbar (4) that a plurality of inner surfaces have the fan-shaped face of cylinder along it, is respectively arranged with a bearing shell (5) on the fan-shaped face of cylinder of each backbar (4); Described bearing shell (5) cooperates with described corresponding backing roll (2) rolling by the many groups cylinder rolling element (6) that is arranged on its tiling; Described many group cylinder rolling elements (6) connect by chain; Between described working roll (3) and the corresponding backing roll (2) with roll surface rolling combination.