CN216027959U

CN216027959U - Device for improving stability of large arc between two fan-shaped sections

Info

Publication number: CN216027959U
Application number: CN202122421681.7U
Authority: CN
Inventors: 杨慧平; 陈春风; 武宗叶
Original assignee: Masteel Heavy Machinery Manufacturing Co Of Anhui
Current assignee: Masteel Heavy Machinery Manufacturing Co Of Anhui
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-15
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a device for improving the stability of a large arc between two fan-shaped sections, and belongs to the technical field of steel rolling equipment. Aiming at the problem that the overall radian of the segment 1 and the segment 2 is subjected to dislocation deviation due to the stress of a plate blank and the action of a tail blank after the segment 1 and the segment 2 are combined in the prior art, the device comprises a stability device body which is fixed on the end surface of the segment 2 and tightly abuts against the side surface of the segment 1; the stabilizing device body comprises a base with an L-shaped section, a guide sleeve is transversely fixed on a vertical plate of the base, and a bolt penetrating through the guide sleeve is further arranged, 2 adjusting nuts are screwed on the bolt and respectively comprise a first adjusting nut and a second adjusting nut, and a belleville spring is sleeved on the bolt between the 2 adjusting nuts; the bottom plate fixed connection of base is in the up end of fan-shaped 2 sections, and the side of fan-shaped 1 section is tightly supported to the working end of bolt, can adjust to offset and have the effect because the stress of slab and tail billet after fan-shaped 1 section and 2 sections close the section.

Description

Device for improving stability of large arc between two fan-shaped sections

Technical Field

The utility model relates to the technical field of steel rolling equipment, in particular to a device for improving the stability of a large arc between two fan-shaped sections.

Background

In the prior art, the sector 1 section and sector 2 section of the steel rolling continuous casting design form are separated, the sector 1 section and sector 2 section are respectively repaired outside the line when the equipment is maintained outside the line, and then the sector 1 section and sector 2 section are integrally assembled outside the line and are aligned with the line after arc correction.

The segment 1 is vertically arranged below a foot roller of the crystallizer, supports a casting blank which just comes out of the crystallizer and has a liquid center in the thickness direction, and guides an initially solidified casting blank to the segment 2 from the vertical segment after continuous cooling. The sector 1 section is mainly composed of a bottom and upper frame for mounting and fixing the rollers, side frames, rollers, cooling nozzles, etc. The bottom and upper frames are welded structures with staggered heights, and other rib plates between the cross beams can increase the rigidity of the casting blank in the direction. The cross member with side beams is used to mount and fix the roller mounts. The side frames are fixed by bolts after the positions of the side frames are adjusted mutually. The roller is a two-section roller with a through shaft (supported by a flexible bearing) and supported in the middle. The intermediate supports of the rollers are staggered. The rollers and the intermediate supports and side frames are cooled by water spray.

The sector 2 section is vertically positioned below the sector 1 section and assembled with the sector 1 section into a whole, and is fixedly arranged on the sector supporting frame. The function of the device is to guide the casting blank to the arc sector 3 after continuous cooling and bending in the thickness direction. The sector 2 section is mainly composed of a bottom frame, an upper frame, side frames and rollers for mounting and fixing the rollers. The bottom frame and the upper frame are of uneven welding structures, so that the cross beams can better adapt to the deformation of force generated by the rollers when a casting blank passes through, and the rigidity of other rib plates between the cross beams can be increased. The cross member with side beams is used to mount and fix the roller mounts. The side frames are fixed by bolts after adjusting the positions of the side frames. The rollers are two-section rollers to increase rigidity. The rollers, bearing housings for the rollers and side frames are internally water cooled.

The sector 1 section and the sector 2 section are connected in a way of combining a section pin and a section combining hole as shown in figures 1 and 2, and then the combination is installed and used on line. As shown in fig. 3, the segment-to-segment installation between segment 1 and segment 2 is only through 2 segment-to-segment pins on segment 2, but there is a gap between the pin and the hole (for easy insertion, the diameter of the pin is smaller than the hole). However, in the continuous casting production process, due to the stress of the plate blank and the effect of the tail blank, the overall radian of the 1 section and the 2 sections of the gap can cause dislocation deviation, and due to the fact that the collision of the tail blank of the plate blank causes large arc deviation which can not be recovered, corner cracks can be generated on the plate blank in serious conditions to influence the quality of the plate blank, even steel leakage can be caused, and the online stability and the online service life of equipment can be influenced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problem that the overall radian of the segment 1 and the segment 2 is staggered and deviated due to the stress of a plate blank and the action of a tail blank after the segment 1 and the segment 2 are combined in the prior art, the utility model provides a device for improving the stability of a large arc between the segment 1 and the segment 2, which can ensure the stability of the large arc between the segment 1/2 through the synergistic action of an adjusting nut and a belleville spring, prevent the deviation of the large arc and effectively relieve the blank throwing impact force of the tail blank.

2. Technical scheme

The purpose of the utility model is realized by the following technical scheme.

A device for improving the stability of a large arc between two fan-shaped sections is applied to a stability device body which is fixed on the end surface of the fan-shaped section 2 and tightly abuts against the side surface of the fan-shaped section 1 after a section combining hole of the fan-shaped section 1 and a section combining pin of the fan-shaped section 2 which are matched are inserted; the stability device body comprises a base with an L-shaped section, a guide sleeve is transversely fixed on a vertical plate of the base, and a bolt penetrating through the guide sleeve is further arranged, the bolt is in threaded connection with 2 adjusting nuts which are respectively an adjusting nut I and an adjusting nut II, and a disc spring is sleeved on the bolt between the 2 adjusting nuts; the bottom plate fixed connection of base is in the up end of fan-shaped 2 sections, and the work end of bolt tightly supports the side of fan-shaped 1 section, through adjusting nut and belleville spring's synergism, can adjust to offset and exist because the stress of slab and the effect of tail base after fan-shaped 1 section and 2 sections close the section, and then avoid the dislocation deviation that the whole radian of fan-shaped 1 section 2 section appears, can guarantee the stability of the major arc between the 1/2 sections, prevent the major arc deviation, can effectively alleviate throwing of tail base impact again.

Preferably, the stability device body is two, and symmetrical formula branch is listed and tightly supports fan-shaped 1 section symmetrical both sides face, and the stability of the major arc between the 1/2 section is further improved to the dual effect.

Preferably, 2 symmetrical reinforcing rib plates are fixed between the vertical plate and the vertical plate of the base, so that the vertical plate of the base can be effectively prevented from being broken due to overlarge stress when the adjusting nut works.

Preferably, the disk springs are arranged according to needs, and the universality is effectively improved.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

the utility model has the advantages of convenient manufacture, low cost, convenient installation and reliable use, can improve the service life of the segment 1 and the segment 2, reduce the maintenance frequency, reduce the maintenance cost, eliminate the possibility that the segment 1 and the segment 2 can cause corner cracks on the slab, improve the quality of the slab, and simultaneously reduce the equipment replacement frequency to provide support for the release capacity of the casting machine so as to achieve the purposes of increasing the production and improving the efficiency.

Drawings

Figure 1 is a perspective view of a segment of sector 1;

FIG. 2 is a perspective view of segment 2 of the sector;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a perspective view of a body of the stabilization device of the present invention.

The reference numbers in the figures are: 1. a sector 1 section; 2. a sector 2 section; 3. a stabilization device body; 11. a section combining hole; 21. closing a section pin; 22. an upper end surface; 31. a base; 32. a guide sleeve; 33. a bolt; 34. a disc spring; 35. adjusting a first nut; 36. adjusting a second nut; 37. and a reinforcing plate.

Detailed Description

The utility model is described in detail below with reference to the drawings and specific examples.

Examples

The device for improving the stability of the large arc between the two sectors of the fan-shaped embodiment is applied to the stability device body 3 which is fixed on the end surface of the sector 2 section 2 and tightly abuts against the side surface of the sector 1 section 1 after the insertion of the segment combining hole 11 of the sector 1 section 1 and the segment combining pin 21 of the sector 2 section 2 which are arranged in a matched manner is realized as shown in fig. 3; as shown in fig. 4, the stabilizing device body 3 includes a base 31 with an L-shaped cross section, a guide sleeve 32 is transversely fixed on a vertical plate of the base 31, and a bolt 33 passing through the guide sleeve 32, the bolt 33 is screwed with 2 adjusting nuts, namely a first adjusting nut 35 and a second adjusting nut 36, and a belleville spring 34 is sleeved on the bolt 33 between the 2 adjusting nuts; the bottom plate of base 31 is fixedly connected to upper end surface 22 of segment 2, and the working end of bolt 33 is tightly pressed against the side surface of segment 1.

The device of the stability of big arc between fan-shaped two sections of improvement of this embodiment, through adjusting nut and 34's of belleville spring synergism, can adjust to offset and exist because the stress of slab and the effect of tail blank after fan-shaped 1 section and 2 sections close the section, and then avoid the dislocation deviation that the whole radian of fan-shaped 1 section 2 section appears, can guarantee 1/2 section between the stability of big arc, prevent the big arc deviation, can effectively alleviate throwing of tail blank impact again.

Further, the stability device body 3 is two, and symmetrical formula branch is listed as and tightly supports the both sides face of sector 1 section 1 symmetry, and dual effect further improves 1/2 section between the stability of major arc. 2 symmetrical reinforcing rib plates 37 are fixed between the vertical plate and the vertical plate of the base 31, so that the vertical plate of the base 31 can be effectively prevented from being broken due to overlarge stress when the adjusting nut works. The disk springs 34 are arranged according to needs, and universality is effectively improved.

The device of the improvement fan-shaped two intersegmental large arc stability of this embodiment, the preparation is convenient, with low costs, simple to operate, uses reliably, can improve 1 section 2 section life and reduce the maintenance number of times, reduces cost of maintenance, has eliminated 1 section 2 section deviations and can cause the possibility of angular crack to the slab, promotes the slab quality. Meanwhile, the replacement frequency of the equipment can be reduced, and the purposes of increasing production and increasing efficiency can be achieved by providing support for the release capacity of the casting machine, and the calculation is as follows:

1. the service life of the segment 1 and the segment 2 can be prolonged, the overhaul times are reduced by 30%, the maintenance cost is reduced by 95 ten thousand yuan, the continuous casting yield is improved by 2 hours, 9.5 times of overhaul is 19 hours, the yield per hour is 312 tons, 19 times of 312 tons is 5928 tons is 0.6 ten thousand tons, the profit of the steel per ton is calculated according to 100 yuan, and 0.6 times of 100 tons is 60 ten thousand.

2. The possibility that the slab can be subjected to corner cracks due to 1-section and 2-section deviation is eliminated, and the quality of the slab is improved.

3. Can reduce the cost and the maintenance cost per year by 155 ten thousand and the steel yield.

The present invention and its embodiments have been described above schematically, without limitation, and the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The representation in the drawings is only one of the embodiments of the utility model, the actual construction is not limited thereto, and any reference signs in the claims shall not limit the claims concerned. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the present invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the protection scope of the present invention. Furthermore, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Several of the elements recited in the product claims may also be implemented by one element in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Claims

1. A device for improving the stability of a large arc between two fan-shaped sections is characterized by comprising a stability device body (3) which is fixed on the end surface of the fan-shaped section 2 and tightly abuts against the side surface of the fan-shaped section 1 (2) after being applied to the insertion of a section combining hole (11) of the fan-shaped section 1 and a section combining pin (21) of the fan-shaped section 2 which are arranged in a matched mode; the stability device body (3) comprises a base (31) with an L-shaped section, a guide sleeve (32) is transversely fixed on a vertical plate of the base (31), and the stability device further comprises a bolt (33) penetrating through the guide sleeve (32), 2 adjusting nuts, namely an adjusting nut I (35) and an adjusting nut II (36), are screwed on the bolt (33), and a disc spring (34) is sleeved on the bolt (33) among the 2 adjusting nuts; the bottom plate of base (31) fixed connection is in sector 2 up end (22) of section (2), and the working end of bolt (33) is tight to be supported against sector 1 side of section (1).

2. A device for increasing the stability of a large arc between two segments of a sector as claimed in claim 1, wherein the number of said stabilizing device bodies (3) is two, symmetrically arranged and abutting against the two symmetrical sides of segment (1) of sector 1.

3. The device for improving the stability of the large arc between two segments of the sector as claimed in claim 1, wherein 2 symmetrical reinforcing rib plates (37) are fixed between the vertical plate and the vertical plate of the base (31).

4. A device for improving the stability of a large arc between two segments of a sector as claimed in any one of claims 1 to 3, wherein the disc springs (34) are provided in a plurality as required.