CN210937046U

CN210937046U - Off-line collecting device for stepping cooling bed of bloom continuous casting machine

Info

Publication number: CN210937046U
Application number: CN201921436995.0U
Authority: CN
Inventors: 左国保; 赵建军; 赵华; 李瑞玲
Original assignee: Handan Iron and Steel Group Co Ltd; HBIS Group Hansteel Co
Current assignee: Handan Iron and Steel Group Co Ltd; HBIS Group Hansteel Co
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-07-07
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to a step-by-step cold bed collection device that rolls off production line of bloom conticaster belongs to metallurgical industry continuous casting production facility technical field. The technical scheme is as follows: contain fixed tooth plate (2) of a plurality of parallel arrangement and setting at movable tooth plate (1) between fixed tooth plate (2) and the connecting rod actuating mechanism of drive movable tooth plate (1), its characterized in that: set up a plurality of parallel arrangement's gyro wheel (4) between two adjacent fixed tooth plate (2), gyro wheel (4) rotate through the bearing and connect on gyro wheel axle (10), and the both ends of gyro wheel axle (10) are fixed respectively on fixed tooth plate (2), and the upper surface of gyro wheel (4) is higher than the upper surface of fixed tooth plate (2). The utility model has the advantages that: the friction between the casting blank and the fixed toothed plate can be reduced, the cold bed toothed plate is prevented from being damaged due to impact or high-temperature baking, the shutdown accidents of the continuous casting machine are reduced, the production time of the continuous casting machine is prolonged, and the operation rate of the continuous casting machine is improved.

Description

Off-line collecting device for stepping cooling bed of bloom continuous casting machine

Technical Field

The utility model relates to a step-by-step cold bed collection device that rolls off production line of bloom conticaster belongs to metallurgical industry continuous casting production facility technical field.

Background

The specifications of casting blanks produced by a bloom continuous casting machine mainly comprise 280 × 380 and 280 × 325, steel types comprise high-value-added steel types such as U71Mn, U75V-T, U75V-G, GCr15, and the steel types are mainly used for rolling high-value-added products such as hectometre heavy rails, high-speed passenger rails, bearing steel, gear steel, boiler tubes and the like, particularly hectometre heavy rails and high-speed passenger rails, the requirements on the casting blanks are high, the casting blanks are required to be offline at the temperature of more than 600 ℃ and are slowly cooled, and the casting blanks cannot have defects such as scratches.

At present, a stepping cooling bed offline collecting device of a bloom continuous casting machine adopts a collecting mode that a stepping cooling bed is offline and a collecting platform is arranged at the tail end. The stepping cooling bed is a common cooling bed and mainly comprises a plurality of fixed toothed plates which are arranged in parallel, movable toothed plates which are arranged between the fixed toothed plates and a connecting rod driving mechanism which drives the movable toothed plates, the cooling bed adopts a circulating stepping forward moving mode of lifting, transverse moving, falling, retreating and re-lifting, the length from a starting point to a collecting table is 60 meters, at least 2 hours are needed for collecting a cluster from a lower line, and because gaps exist between casting blanks, the cooling of the casting blanks is accelerated, the casting blanks generate surface cracks and internal defects due to quenching, and the rolling requirements cannot be met at all.

The casting blank off-line process comprises the following specific steps: the casting blank is placed on a fixed toothed plate of a cooling bed, the movable toothed plate is driven by a connecting rod driving mechanism to enable the casting blank to directly slide on the fixed toothed plate, the casting blank and the fixed toothed plate are rough in surface and large in weight, so that the friction resistance between the casting blank and the fixed toothed plate is large, especially multiple casting blanks are pushed simultaneously, huge friction resistance can be generated, the huge friction resistance directly acts on the movable toothed plate and a driving oil cylinder, and the driving oil cylinder is damaged, the toothed plate is worn and scrapped, and equipment accidents such as the fracture of a driving connecting bolt and the like are caused. Because frictional resistance is big, and the resistance of different pinion racks is inconsistent, still can cause the casting blank to be pushed away the slope, what the slope is serious can cause the unable handling of overhead traveling crane to roll off the production line. Meanwhile, the casting blank slides on the fixed gear plate, so that the lower part of the casting blank is scratched.

In addition, in the off-line process of the casting blank, because the cooling bed bears the high-temperature casting blank, the toothed plate of the cooling bed is baked at high temperature to deform, so that the normal work of the cooling bed is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a step-by-step cold bed collection device that rolls off production line of bloom conticaster can reduce the frictional force between casting blank and the fixed tooth plate, avoids the cold bed tooth plate to damage, solves the problem that exists among the background art.

The technical scheme of the utility model is that:

the utility model provides a step-by-step cold bed collection device that rolls off production line of bloom conticaster, contains a plurality of parallel arrangement's fixed tooth plate and sets up the fishback between the fixed tooth plate and drive fishback's connecting rod actuating mechanism, sets up a plurality of parallel arrangement's gyro wheel between two adjacent fixed tooth plates, the gyro wheel passes through the bearing and rotates the connection on the gyro wheel axle, and the both ends of gyro wheel axle are fixed respectively on fixed tooth plate, and the upper surface of gyro wheel is higher than fixed tooth plate's upper surface.

The two ends of the roller shaft are respectively welded on the fixed plate, and the fixed plate is fixed on the fixed toothed plate through bolts.

Still be equipped with coolant tank between two adjacent fixed tooth plates, coolant tank is located the below of gyro wheel, and coolant tank is equipped with water tank import and water tank export.

The cooling water tank is fixed on the fixed toothed plate, and the water tank inlet and the water tank outlet are respectively positioned on two sides of the cooling water tank.

Adopt the utility model discloses, at the in-process that the casting blank rolls off the production line: the casting blank is placed on the idler wheel and pushed forwards by the movable toothed plate of the cooling bed, and the friction between the casting blank and the fixed toothed plate is changed from original sliding friction into rolling friction, so that the friction force is reduced. In addition, in the casting blank off-line process, the cooling water tank can be used for cooling the cooling bed toothed plate, so that the cooling bed toothed plate is prevented from being baked and deformed at high temperature.

The utility model has the advantages that: the friction between the casting blank and the fixed toothed plate can be reduced, the cold bed toothed plate is prevented from being damaged due to impact or high-temperature baking, the shutdown accidents of the continuous casting machine are reduced, the production time of the continuous casting machine is prolonged, and the operation rate of the continuous casting machine is improved.

Drawings

FIG. 1 is a schematic diagram of a background art structure;

FIG. 2 shows a state after the casting blank is pushed in the background art;

FIG. 3 illustrates a state before a casting blank is pushed according to the background art;

FIG. 4 is a schematic structural view of the present invention;

FIG. 5 shows the state of the casting blank of the present invention before it is pushed;

FIG. 6 shows the casting blank in a pushed state;

figure 7 is a front view of the fixed tooth plate;

figure 8 is a left side view of the fixed tooth plate;

figure 9 is a top view of the fixed tooth plate;

FIG. 10 is a front view of the roller;

FIG. 11 is a side view of the roller;

FIG. 12 is a schematic view of a roller mounting;

FIG. 13 is a schematic view of the roller shaft and fixed tooth plate mounting;

in the figure: the casting device comprises a movable toothed plate 1, a fixed toothed plate 2, a casting blank 3, a roller 4, a cement support 5, an oil cylinder 6, a cooling water tank 7, a water tank inlet 8, a water tank outlet 9, a roller shaft 10, a fixed plate 11 and a bolt 12.

Detailed Description

The invention will be further explained by way of example with reference to the accompanying drawings.

Referring to fig. 4-13, a step-by-step cold bed collection device that rolls off production line of bloom conticaster contains a plurality of parallel arrangement's fixed tooth plate 2 and sets up the movable tooth plate 1 between fixed tooth plate 2 and the connecting rod actuating mechanism who drives movable tooth plate 1, sets up a plurality of parallel arrangement's gyro wheel 4 between two adjacent fixed tooth plate 2, gyro wheel 4 rotates through the bearing and connects on gyro wheel axle 10, and the both ends of gyro wheel axle 10 are fixed respectively on fixed tooth plate 2, and the upper surface of gyro wheel 4 is higher than the upper surface of fixed tooth plate 2.

In this embodiment, referring to fig. 12 and 13, two ends of the roller shaft 10 are respectively welded to the fixing plate 11, and the fixing plate 11 is fixed to the fixed tooth plate 2 by bolts 12.

Referring to fig. 4-13, the fixed toothed plates 2 are fixed on the cement support 5, a cooling water tank 7 is further disposed between two adjacent fixed toothed plates 2, the cooling water tank 7 is a rectangular box welded by steel plates and welded on the fixed toothed plates 2, and a water tank inlet 8 and a water tank outlet 9 are respectively located on two sides of the cooling water tank 7.

Adopt the utility model discloses, concrete economic benefits calculates as follows:

(1) the shutdown accidents caused by equipment damage are reduced, the shutdown treatment time is reduced by 8 hours every time every three months, and the benefits can be increased all the year round:

4 times/year × 8 hours/time × 149.4.4 tons/hour yield × 500 yuan/ton billet (heavy rail) yield increase benefit 239.04 ten thousand yuan

(2) Reduce the equipment damage, calculate according to 2 ten thousand yuan of spare part damage of each time of average, reduce the artificial consumption of salvage each time 0.5 ten thousand yuan/each time (2 ten thousand yuan +0.5 ten thousand yuan) × 4 times/year as 10 ten thousand yuan

The total economic benefits all year round can be created: 249.04 ten thousand yuan.

Claims

1. The utility model provides a step-by-step cold bed collection device that rolls off production line of bloom conticaster, contains a plurality of parallel arrangement's fixed tooth plate (2) and sets up movable tooth plate (1) between fixed tooth plate (2) and the connecting rod actuating mechanism of drive movable tooth plate (1), its characterized in that: set up a plurality of parallel arrangement's gyro wheel (4) between two adjacent fixed tooth plate (2), gyro wheel (4) rotate through the bearing and connect on gyro wheel axle (10), and the both ends of gyro wheel axle (10) are fixed respectively on fixed tooth plate (2), and the upper surface of gyro wheel (4) is higher than the upper surface of fixed tooth plate (2).

2. The step cooling bed offline collecting device of the bloom continuous casting machine as claimed in claim 1, wherein: the two ends of the roller shaft (10) are respectively welded on a fixing plate (11), and the fixing plate (11) is fixed on the fixed toothed plate (2) through bolts (12).

3. The apparatus for collecting the lower line of the stepping cooling bed of the bloom continuous casting machine according to claim 1 or 2, wherein: still be equipped with coolant tank (7) between two adjacent fixed tooth plates (2), coolant tank (7) are located the below of gyro wheel (4), and coolant tank (7) are equipped with water tank import (8) and water tank export (9).

4. The stepping cold bed off-line collecting device of the bloom continuous casting machine according to claim 3, characterized in that: the cooling water tank (7) is fixed on the fixed toothed plate (2), and the water tank inlet (8) and the water tank outlet (9) are respectively positioned on two sides of the cooling water tank (7).