CN214719405U

CN214719405U - Guide roller device for eliminating edge defects of strip steel

Info

Publication number: CN214719405U
Application number: CN202120519200.3U
Authority: CN
Inventors: 马啸晨; 马晨明; 常大伟; 时亮
Original assignee: Tangshan City Delong Iron and Steel Co Ltd
Current assignee: Tangshan City Delong Iron and Steel Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-16
Anticipated expiration: 2031-03-11

Abstract

A guide roller device for eliminating edge defects of strip steel comprises a plurality of groups of guide roller assemblies which are symmetrically arranged left and right; the guide roller assembly is provided with an upper supporting seat, a lower supporting seat, a roller shaft and a free roller; the upper supporting seat is fixed on the upper end surfaces of the baffles at two sides of the finishing mill inlet roller way; the lower supporting seat is fixed in the middle of the baffle plate frames at two sides of the front roller way at the inlet of the finishing mill and corresponds to the upper supporting seat in position; the roll shaft is arranged perpendicular to the feeding direction of the middle blank, and the upper end and the lower end of the roll shaft are respectively fixedly assembled with the upper supporting seat and the lower supporting seat; the free roller is a cylindrical roller and is sleeved on the roller shaft in a rotatable mode, and the outer cylindrical surface of the free roller protrudes inwards through notches in the baffle plates on two sides of the inlet roller way of the finishing mill. The utility model discloses simple structure, it is convenient to use and change, has realized the guide effect to getting into blank in the middle of the finishing mill pan feeding mouth, has reached the purpose of eliminating belted steel limit portion defect, improvement product quality.

Description

Guide roller device for eliminating edge defects of strip steel

Technical Field

The utility model relates to a metallurgical steel rolling equipment technical field specifically is an arrange before hot rolling belted steel production line finishing mill entry, be used for eliminating belted steel limit portion defect's guide roll device.

Background

In the production process of hot-rolled strip steel, an intermediate billet is conveyed to a finish rolling area after being subjected to rough rolling, and in order to ensure that the intermediate billet can accurately enter a feeding port of a finish rolling machine, the width of a roller way arranged at the front end of the finish rolling area is narrowed, so that the two sides of the roller way easily damage the edge part of the intermediate billet, thereby causing the edge defect of the strip steel, reducing the quality of the strip steel finished product, influencing the quality of downstream deep-processed products, and directly causing the degradation treatment of the strip steel finished product when the damage is serious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a guide roll device for eliminating belted steel limit portion defect aims at realizing the guide effect to middle blank through arranging a plurality of groups and middle blank feed direction vertically guide roll subassembly before the finishing mill entry, reaches the purpose of eliminating belted steel limit portion defect, improvement product quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a guide roller device for eliminating edge defects of strip steel comprises a plurality of groups of guide roller assemblies which are symmetrically arranged left and right, and openings for avoiding the guide roller assemblies are correspondingly formed on two side baffles of an inlet roller way of a finishing mill; the guide roller assembly is provided with an upper supporting seat, a lower supporting seat, a roller shaft and a free roller; the upper supporting seat is fixed on the upper end surfaces of the baffles at two sides of the finishing mill inlet roller way; the lower supporting seat is fixed in the middle of the baffle plate frames at two sides of the front roller way at the inlet of the finishing mill and corresponds to the upper supporting seat in position; the roll shaft is arranged perpendicular to the feeding direction of the middle blank, and the upper end and the lower end of the roll shaft are respectively fixedly assembled with the upper supporting seat and the lower supporting seat; the free roller is a cylindrical roller and is sleeved on the roller shaft in a rotatable mode, and the outer cylindrical surface of the free roller protrudes inwards through notches in the baffle plates on two sides of the inlet roller way of the finishing mill.

According to the guide roller device for eliminating the edge defects of the strip steel, the bearings are arranged between the upper end and the lower end of the free roller and the roller shaft.

The guide roller device for eliminating the edge defects of the strip steel is also provided with a cooling water pipe, one end of a water inlet of the cooling water pipe is connected with a cooling water source, and one end of a water outlet of the cooling water pipe is aligned to the central part of the free roller.

Above-mentioned a guide roll device for eliminating belted steel limit portion defect, both ends are square column structure about the roller, go up the quad slit that sets up on supporting seat, the under bracing seat and match with both ends about the roller, the quad slit of both ends penetrates respectively in the quad slit of supporting seat, under bracing seat about the roller.

Above-mentioned guide roll device for eliminating belted steel limit portion defect, go up the supporting seat and be equipped with the apron, the apron passes through bolt fixed mounting on last supporting seat, and the quad slit and the square post fixed assembly in the roller axle that set up on the apron.

The utility model provides a guide roll device for eliminating edge defects of strip steel, which is arranged at the roller way before the inlet of a finishing mill, when a steel billet is transported to a finishing area after rough rolling, a workpiece is fed in along the direction parallel to baffle plates at two sides of the roller way through a plurality of groups of guide roll components which are symmetrically arranged left and right, thereby effectively avoiding the contact between an intermediate billet and two side edges of the roller way, eliminating the phenomenon of edge damage of the intermediate billet and ensuring the integral quality of the strip steel; the utility model also effectively prolongs the service life of the free roller by cooling water; in addition the utility model discloses with last supporting seat design for fixing base and apron integrated configuration, the change of the free roller of being more convenient for. In a word, the utility model discloses simple structure, it is convenient to use and change, has realized the guide effect to getting into blank in the middle of the finishing mill pan feeding mouth, has reached the purpose of eliminating belted steel limit portion defect, improvement product quality.

Drawings

FIG. 1 is a schematic view of the installation structure of the present invention;

FIG. 2 is a schematic structural view of a guide roller assembly of the present invention;

FIG. 3 is a front view of FIG. 2;

fig. 4 is a top view of fig. 3.

The list of labels in the figure is:

1. 1-1 parts of a roller way before the inlet of the finishing mill, and a notch;

2. the guide roller assembly comprises a guide roller assembly 2-1, an upper supporting seat 2-1-1, a cover plate 2-1-2 and bolts. 2-2 parts of free rollers, 2-3 parts of roller shafts, 2-4 parts of lower supporting seats, 2-5 parts of bearings;

3. and cooling the water pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, 2 and 3, the guide roll device for eliminating edge defects of strip steel of the present invention is installed at a roller way before an inlet of a finishing mill, and includes a plurality of sets of guide roll assemblies 2 symmetrically arranged left and right, and openings 1-1 for avoiding the guide roll assemblies 2 are correspondingly formed on two side baffles of the roller way 1 at the inlet of the finishing mill; the utility model discloses still be equipped with condenser tube 3, 3 water inlet one ends of condenser tube are connected with cooling water source, and the central point that guide roll subassembly 2 was aimed at to delivery port one end.

Referring to fig. 2, 3 and 4, the preferred embodiment of the guide roll device for eliminating edge defects of strip steel of the present invention is: each group of guide roller assemblies 2 is provided with an upper supporting seat 2-1, a lower supporting seat 2-4, a roller shaft 2-3 and a free roller 2-2; the upper supporting seat 2-1 is fixed on the upper end surface of a baffle plate at two sides of an inlet roller table 1 of the finishing mill, a cover plate 2-1-1 is arranged on the supporting seat 2-1, and the cover plate 2-1-1 is fixedly installed with the supporting seat 2-1 through a bolt 2-1-2; the lower supporting seat 2-4 is fixed in the middle of the baffle plate frames at two sides of the front roller way at the inlet of the finishing mill and corresponds to the upper supporting seat 2-1 in position; the roll shaft 2-3 is arranged perpendicular to the feeding direction of the middle blank, the upper end and the lower end of the roll shaft 2-3 are of square column structures, square holes matched with the upper end and the lower end of the roll shaft 2-3 are correspondingly formed in the upper supporting seat 2-1 and the lower supporting seat 2-4 respectively, and the square columns at the upper end and the lower end of the roll shaft 2-3 penetrate into the square holes of the cover plate 2-1-1 and the lower supporting seat 2-4 in the upper supporting seat 2-1 respectively; the free roller 2-2 is a cylindrical roller and is sleeved on the roller shaft 2-3, bearings 2-5 are arranged between the upper end and the lower end of the free roller 2-2 and the roller shaft 2-3, and the outer cylindrical surface of the free roller 2-2 protrudes inwards through gaps 1-1 on baffles on two sides of the finishing mill inlet roller table 1.

Referring to fig. 1 to 4, the present invention provides a guide roll apparatus for eliminating edge defects of strip steel, which is installed at a roller table 1 before an inlet of a finishing mill, when a steel billet is transported to a finishing rolling area after rough rolling, a workpiece is fed in a direction parallel to baffles at both sides of the roller table by a plurality of sets of guide roll assemblies 2 symmetrically arranged in left and right directions, thereby effectively avoiding contact between an intermediate billet and both sides of the roller table, eliminating edge damage of the intermediate billet, and ensuring the overall quality of the strip steel; the utility model also effectively prolongs the service life of the free roller by cooling water; in addition, the upper supporting seat 2-1 of the utility model is designed into a combined structure of a fixed seat and a cover plate 2-1-1, which is convenient for replacing the free roller 2-2 in the guide roller component 2.

Claims

1. A guide roll device for eliminating edge defects of strip steel is characterized by comprising a plurality of groups of guide roll assemblies (2) which are arranged in a bilateral symmetry way, and notches (1-1) for avoiding the guide roll assemblies (2) are correspondingly arranged on two side baffles of an inlet roller way (1) of a finishing mill; the guide roller assembly (2) is provided with an upper supporting seat (2-1), a lower supporting seat (2-4), a roller shaft (2-3) and a free roller (2-2); the upper supporting seat (2-1) is fixed on the upper end surfaces of the baffles on the two sides of the finishing mill inlet roller way (1); the lower supporting seat (2-4) is fixed in the middle of the baffle plate frames at two sides of the front roller way at the inlet of the finishing mill and corresponds to the upper supporting seat (2-1); the roll shaft (2-3) is arranged perpendicular to the feeding direction of the middle blank, and the upper end and the lower end of the roll shaft are respectively fixedly assembled with the upper supporting seat (2-1) and the lower supporting seat (2-4); the free roller (2-2) is a cylindrical roller and is sleeved on the roller shaft (2-3) in a rotatable mode, and the outer cylindrical surface of the free roller (2-2) protrudes inwards through notches (1-1) on baffle plates on two sides of the finishing mill inlet roller way (1).

2. The apparatus of claim 1, wherein bearings (2-5) are installed between the upper and lower ends of the free roll (2-2) and the roll shaft (2-3).

3. The apparatus of claim 2, further comprising a cooling water pipe (3), wherein the cooling water pipe (3) has an inlet end connected to a cooling water source and an outlet end aligned with the center of the free roll (2-2).

4. The guide roll device for eliminating the edge defects of the strip steel according to claim 1, 2 or 3, wherein the upper end and the lower end of the roll shaft (2-3) are both square column structures, square holes matched with the upper end and the lower end of the roll shaft (2-3) are formed in the upper supporting seat (2-1) and the lower supporting seat (2-4), and the square columns at the upper end and the lower end of the roll shaft (2-3) respectively penetrate into the square holes of the upper supporting seat (2-1) and the lower supporting seat (2-4).

5. The guide roll device for removing edge defects of strip steel according to claim 4, wherein the upper support base (2-1) is provided with a cover plate (2-1-1), the cover plate (2-1-1) is fixedly arranged on the upper support base (2-1) through bolts (2-1-2), and a square hole formed in the cover plate (2-1-1) is fixedly assembled with a square column at the upper end of the roll shaft (2-3).