CN201776290U

CN201776290U - Device capable of changing working surface of vertical roll

Info

Publication number: CN201776290U
Application number: CN2010202874411U
Authority: CN
Inventors: 张仁其; 幸利军
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd; Baosteel Group Corp
Priority date: 2010-08-10
Filing date: 2010-08-10
Publication date: 2011-03-30
Anticipated expiration: 2020-08-10

Abstract

The utility model discloses a device capable of changing a working surface of a vertical roll, which is arranged between a transmission side vertical roll and a working side vertical roll and correspondingly arranged on a lower nose guard board which is under an upper nose guard board. Two grooves are symmetrically arranged on the upper end surface of the lower nose guard board along the length direction; the bottom of each groove is provided with a through hole; two bearing supports are arranged in the two grooves on the upper end surface of the lower nose guard board and matched with the grooves in shape; one end of each bearing support is pivoted to the side walls of the two grooves on the upper end surface of the lower nose guard board; two rollers are respectively arranged on the upper end surface of the two bearing supports; two lift cylinders are arranged under the lower nose guard board; and a piston rod of each lift cylinder passes through the through hole at the bottom of the groove and then is connected with the bearing support. By lifting the height of strip steels in the rolling process, the utility model has the advantages that the device changes the contact surface of the strip steel and the vertical roll, improves the utilization ratio of the roll body of the vertical roll in the length direction, reduces local wear of the vertical roll and prolongs the service life cycle of the vertical roll.

Description

A kind of device that changes the edger roll working face

Technical field

The utility model relates to steel rolling equipment, particularly a kind of device that changes the edger roll working face.

Background technology

Edger roll is necessity equipment of each hot rolling unit control band steel finished width, and its arrangement form is in the front of horizontal roller or back.Up and down the horizontal roller of Bu Zhiing and about the edger roll arranged formed the universal mill of hot rolling unit.About the last bridge of the nose and the following bridge of the nose are arranged in the middle of the edger roll arranged, the effect of the last bridge of the nose is to stop to be with steel from the middle equipment such as damage power transmission shaft that passes of two edger rolls when heap steel accident takes place; The effect of the following bridge of the nose is to play a supportive role when being with steel in the middle of entering two edger rolls, prevents to be with the steel tenesmus.

When the band steel entered the edger roll side pressure, the bridge of the nose was defended plate under band steel lower surface was close to, and both sides contact with the edger roll roll surface.Because the edger roll barrel length is about 440mm, and the thickness of finished product frame is about 35～60mm, edger roll has only the body of roll about 35～60mm to be utilized in the side pressure process, therefore at rolling 2～3mm groove that is worn out on the 35～60mm length direction of edger roll body of roll bottom, about 250,000 tons backs, have to carry out roll change then.Part beyond edger roll 35～60mm length never is utilized in process of production, but the grinding same with working face when grinding caused a large amount of wastes.

Summary of the invention

The purpose of this utility model is to design a kind of device that changes the edger roll working face, by the height of elevator belt steel in the operation of rolling, change the contact-making surface of band steel and edger roll, improved the utilization rate of edger roll barrel length direction, reduce the concentrated wear of edger roll, prolonged the life cycle of edger roll.

The technical solution of the utility model is, a kind of device that changes the edger roll working face is arranged between transmission side edger roll, the active side edger roll, and correspondence is positioned at the bridge of the nose and defends the following bridge of the nose of plate below and defend on the plate; The upper surface that the described down bridge of the nose is defended plate symmetry along its length has two grooves, and bottom portion of groove is established through hole; Two bearing blocks are arranged at down the bridge of the nose and defend two grooves in plate upper surface, shape and groove coupling; One end pivoting of bearing block is connected in down the bridge of the nose and defends two recess sidewall in plate upper surface; Two running rollers are arranged at the upper surface of two bearing blocks respectively; Two lift cylinders are positioned at the described bridge of the nose down and defend under the plate, and the through hole that the piston rod of lift cylinder passes bottom portion of groove is connected with bearing block.

The groove floor that the described bridge of the nose is down defended the upper surface of plate is the inclined-plane.

Advantage of the present utility model is:

The utility model is defended plate by improving the middle following bridge of the nose of two edger rolls, in the centre that the following bridge of the nose is defended plate two running rollers that can promote have been installed, change the height of band steel by the lifting of running roller, make the band steel change contact-making surface with edger roll when rolling entering edger roll, improve edger roll barrel length direction utilization rate.

Description of drawings

Fig. 1 is the structural representation of the utility model one embodiment;

Fig. 2 is the working state schematic representation of the utility model embodiment.

The specific embodiment

Referring to Fig. 1, Fig. 2, the device that changes the edger roll working face of the present utility model is arranged between transmission side edger roll 1, the active side edger roll 2, and correspondence is positioned at the bridge of the nose and defends the following bridge of the nose of plate 3 belows and defend on the plate 4; The upper surface that the described down bridge of the nose is defended plate 4 symmetry along its length has two

grooves

41,42, and

groove

41,42 bottom surfaces 411,421 are the inclined-plane, and bottom portion of groove is established through hole; Two bearing blocks 5,5 ' are arranged at down the bridge of the nose and defend two grooves in plate

upper surface

41,42, shape and groove coupling; One end pivoting of bearing block is connected in down the bridge of the nose and defends two recess sidewall in plate upper surface; Two running rollers 6,6 ' are arranged at two bearing blocks 5,5 ' upper surface respectively; Two lift cylinders 7,7 ' are positioned at the described down bridge of the nose and defend plate 4 times, and the through hole that lift cylinder 7,7 ' piston rod 71,71

' pass groove

41,42 bottoms is connected with

bearing block

5,5 '.Transmission side edger roll 1, active side edger roll 2 connect transmission side side pressure oil cylinder 8, transmission side edger roll oil cylinder 9 and active side side pressure oil cylinder 8 ', the active side edger roll oil cylinder 9 ' of pulling back of pulling back respectively.

During use, band steel 10 is before advancing transmission side edger roll 1, active side edger roll 2, and lift cylinder 7,7 ' lift shaft bearing 5,5 ' make running roller 6,6 ' upper surface exceed down the bridge of the nose and defend plate 4 a certain height location; The band steel is entering the maintenance of edger roll operation of rolling middle roll height; The band steel leaves lift cylinder 7 behind the edger roll, 7 ' lift shaft bearing 5,5 ', makes running roller 6,6 ' upper surface exceed down the bridge of the nose and defends plate 4 and highly locate to another, for rolling next piece band steel is prepared; Repeat above-mentioned steps, make the position contact of the constantly different bodies of roll of band steel rolling with edger roll.Because the band steel has been eliminated the serious concentrated wear of edger roll together with different edger roll body of roll contacts in the operation of rolling, has improved the roll surface of edger roll, has prolonged the roll change cycle, has reduced the roller consumption.

Claims

1. the device that can change the edger roll working face is arranged between transmission side edger roll, the active side edger roll, and correspondence is positioned at the bridge of the nose and defends the following bridge of the nose of plate below and defend on the plate; It is characterized in that,

The upper surface that the described down bridge of the nose is defended plate symmetry along its length has two grooves, and bottom portion of groove is established through hole;

Two bearing blocks are arranged at down the bridge of the nose and defend two grooves in plate upper surface, shape and groove coupling; One end pivoting of bearing block is connected in down the bridge of the nose and defends two recess sidewall in plate upper surface;

Two running rollers are arranged at the upper surface of two bearing blocks respectively;

Two lift cylinders are positioned at the described bridge of the nose down and defend under the plate, and the through hole that the piston rod of lift cylinder passes bottom portion of groove is connected with bearing block.

2. the device that changes the edger roll working face as claimed in claim 1 is characterized in that, the groove floor that the described bridge of the nose is down defended the upper surface of plate is the inclined-plane.