KR20140022171A - Roll device for guiding hot materials - Google Patents

Abstract

Provided is a guiding roll apparatus made of a hot material guiding the movement (proceeding) of a hot material, such as a piece like a slab continuously casted. The hot material guide roll apparatus of the present invention includes: a plurality of unit rolls provided to be rotated so that the proceeding of hot material is guided on a proceeding route of the hot material; and a sealing means for passage connection communicated between cooling medium passages provided in the unit rolls. According to the present invention, the guiding roll apparatus increases heat transferring efficiency by connecting the (cylindrical) unit rolls and provides, for the cooling medium (coolant) passage connection part of the unit rolls, a sealing means for passage connection so as to at least stably maintain cooling efficiency by blocking water leakage and to have less abrasion even if the unit rolls do not evenly rotate. Therefore, the guiding roll apparatus can ultimately have improved effect of reducing costs by simplifying a roll and extending life time by securing severity of quenching.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-temperature material guide roll apparatus for guiding the movement (progress) of a high temperature material such as a cast steel (continuously cast), more specifically, (Cooling water) passage connecting portion of the unit rolls, in particular, it is possible to maintain the cooling efficiency at least stably through the water leakage interception, so that the wear of the unit rolls is reduced even if the rotating state of the unit rolls is not uniform, Temperature guide roll device capable of dramatically reducing the cost due to the extension of the lifespan through the provision of cooling capability and the simplified rolls.

Typically, in a continuous casting facility, although not shown in separate drawings, high temperature molten steel is injected from a tundish into a mold to produce a slab (e.g., slab, bloom, or billet).

At this time, the molten steel is solidified and extracted from the mold to produce a desired size of the cast steel. The cast steel is first cooled while forming a solidified cell in the mold, and then drawn by the strand guide rolls arranged along the strand line And is then secondarily cooled.

Of course, in the course of stranding of the cast steel, there is a drive roll to which a drive source for applying the casting force is connected, and strand guide rolls which idle move are arranged therebetween.

On the other hand, in the continuous casting equipment of the casting machine, the progress of the casting is simply guided by the casting course, or the segmenting equipments for controlling the thickness of the casting casting are arranged.

Needless to say, such a segment is also provided with guide rolls, which guide the strand advancement of the cast steel or perform the thickness control of the cast steel through roll gap control in accordance with the press operation.

However, although not shown in the drawings, most of the (strand) guide rolls known so far have portions that are in direct contact with the cast steel, that is, the shells are multi-tiered, while the roll shafts in which multi- And the cooling water flows through the roll shaft.

However, such conventional multi-stage split shell type guide rolls are complicated in the parts processing, manufacture, and assembling structure because the unit rolls shells are assembled through the bearings on the outer edge of the roll shaft of the cylinder.

Particularly, even if cooling water is passed through the inside of the shaft because of the double structure in which the roll shell with which the high temperature casting is in contact is assembled to the shaft, assembly tolerance or multilayer structure between the shaft and the roll shell results in poor heat transfer efficiency Therefore, there is a problem that the life of the roll is short due to deterioration.

Accordingly, applicants of the present invention have found that the conventional multi-split roll shell is not in the way of being assembled to the shaft of the barrel, but rather the multi-unit rolls of the barrel are interconnected, Thus, the present invention has been proposed in which the cooling capability is stably maintained.

That is, in the related art, the unit rolls are connected to each other to improve the heat transfer efficiency, and in particular, the cooling medium passage portion of the unit rolls is provided with sealing means for connecting the passage, Temperature material guide roll device capable of reducing the cost by prolonging the lifespan by securing the cooling ability and realizing the simplified roll while maintaining the cooling efficiency at least stably while reducing the wear even if the rotation states of the unit rolls are not uniform. Has been required.

As a technical aspect for achieving the above requirements, the present invention is a plurality of unit rolls rotatably provided to guide the progress of the high temperature material on the progress path of the high temperature material; And

Passage connecting sealing means connected between the cooling medium passages provided in the unit roll;

It provides a high temperature material guide roll device configured to include.

Preferably, the unit roll includes: a side-side unit roll disposed on both sides of the apparatus, which is rotatably provided via a bearing unit; And at least one central side unit roll connected between the side side unit rolls.

More preferably, the assembly ring is provided between the unit roll and the bearing unit, and the assembly ring is assembled with the unit roll.

At this time, the assembly roll and the unit roll to be assembled to the assembly ring, the rotational force transmission means provided to enable the rotational force transmission of the roll; may further include.

Preferably, the passage connecting sealing means, the cooling medium passage provided in the unit roll or the sleeve is connected between the assembly groove provided in the unit roll to communicate with the cooling medium passage; And one or more sealing members provided on the sleeve.

More preferably, the sleeve may include first and second sleeves which are respectively tightly inserted into opposing cooling medium passages or assembly groove portions of the rolls, and are assembled with each other and the cooling medium flows inwardly, and the sealing member includes: And a packing provided in said first and second sleeves to maintain a seal between at least the sleeve and the roll.

The first sleeve may include a body part fitted into an assembly groove of a cooling medium passage or a roll, and an extension part in which the second sleeve is assembled to the outside while being extended from the body part. It may further include a packing member provided between the extension of the sleeve and the second sleeve.

More preferably, the mounting groove formed at the end of the cooling medium passage of the unit roll is integrally provided with a supporting step for supporting the engaging jaws provided in the first and second sleeves.

According to the present invention, since the multi-unit unit rolls of the cylinder are connected to each other to constitute one roll unit, the heat transfer efficiency is improved compared to the shaft structure of the conventional multi-stage shell and the cylinder.

Particularly, the present invention makes it possible to distribute the cooling medium (cooling water) at the connection portion of the cooling medium passage of the unit rolls linked to each other, It is possible to prevent the cooling efficiency due to the leakage of water from the inside of the roll, and corrosion of the bearing parts and the like.

Further, according to the present invention, since the wear resistant packing (member) or the like provided on the sealing means, wear is reduced even if the rotation of the unit roll is different, and thus the cooling ability of the roll can be maintained and the service life can be extended, Thereby making it possible to simplify the entire device structure and assembly, thereby enabling cost reduction.

As a result, the present invention enables the design using four bearing units to secure the rigidity of the roll for supporting the cast steel, so that even if the diameter of the roll is made smaller than the conventional roll, will be.

In addition, it is possible to realize the transmission of the rotational force of the unit rolls of the present invention, thereby making it possible to suppress the friction between the unit roll and the surface of the cast steel.

1 is a schematic view showing an application state of a high-temperature material guide roll apparatus of the present invention as an example;
Fig. 2 and Fig. 3 are a cross-sectional view and a cut-away perspective view showing the overall configuration of the high-
FIG. 4 is an exploded perspective view showing the 'A' portion of the inventive guide roll apparatus of FIG.
FIGS. 5A to 5C are a main part perspective view, a cutting perspective view and a cross-sectional view of the 'B'
FIGS. 6A and 6B are a cut-away perspective view and a cross-sectional view of the 'C' portion of the inventive guide roll apparatus of FIG.
FIG. 7 is an exploded perspective view of another modification showing the 'A'
8A to 8C are a main part perspective view, a cutting perspective view and a cross-sectional view of another modified example showing the 'B'

Hereinafter, the present invention will be described in detail with reference to the drawings.

2 to 6 show a high-temperature material guide roll device 1 according to the present invention, and Figs. 7 to 8 show some modified embodiments of the high-temperature material guide roll device 1 of the present invention.

Therefore, in the following description of the present embodiment, the high temperature material guide roll apparatus 1 of the present invention will be described based on FIG. 2 to FIG. 6, and modified embodiments will be described based on FIG. 7 to FIG.

First, FIG. 1 shows a continuous casting facility 100 to which a high temperature material guide roll device 1 according to the present invention is applied.

1, the molten steel stored in the ladle 110 of the continuous casting facility 100 is drawn through the tundish 120 and the mold 130 into a slab S such as a slab, .

At this time, the slab S is first cooled in the mold 130 and moved along the guide line of the high-temperature material guide roll device 1 of the present invention, which is disposed along the strand line, Secondly cooled.

On the other hand, the high-temperature material guide roll device 1 of the present invention may be in the form that it is in contact with the slab S to which external power (circle) is not connected and idly driven by the propelling force of the cast steel, (Not shown) can be suitably provided between the high temperature material guide roll apparatus 1 of the present invention.

1, segment equipment (not shown) is disposed in the continuous casting facility 100 to gradually produce a cast steel having a final size while pressing the cast steel S gradually along the strand line And the high temperature material guide roll device 1 of the present invention may be provided in such a segment.

Therefore, in the following description of this embodiment, the high-temperature material is described as the cast piece S, the high-temperature material guide roll device 1 is described as the guide roll 1, and the guide roll 1 of the present invention is used For example, it is assumed that the present invention is applied to the strand line of the continuous casting equipment as shown in Fig.

Needless to say, the guide roll 1 of the present invention is not necessarily applied to the continuous casting equipment, but is directly contacted when a high-temperature material such as a high-temperature steel sheet heated (annealed) is transported from steelworks or other steel companies The present invention is not limited thereto.

2 and 6 show a guide roll 1 according to the present invention. For example, Figs. 2 and 3 show the entire configuration of the guide roll 1 according to the present invention, and Fig. 4 And FIGS. 5 and 6 respectively show parts A, B, and C of FIG. 2 as major parts, and FIG. 7 shows part of the guide roll 1 as a perspective view.

2 to 4, the guide roll 1 of the present invention is roughly constituted by a plurality of roll rotation supporting means disposed on the traveling path of the steel strip S, that is, a bearing unit A plurality of unit rolls 30 provided for guiding the progress of the mast through the plurality of unit rolls 10 and a cooling medium passage 50 provided in the plurality of unit rolls 30 And a sealing means 70 for connecting the passageway, which is connected between the sealing means (described later).

That is, in the guide roll 1 of the present invention, a plurality of cylindrical unit rolls 30 are combined to form one guide roll, so that when the hot rolls come into contact with the roll surface of the rollers, The heat transfer efficiency is higher than that of conventional conventional guide rolls in which a multi-stage roll shell is assembled to an existing roll shaft, and this has an excellent cooling performance .

That is, in the case where the high-temperature cast steel S is brought into contact with the roll surface in the same manner as the guide roll 1 of the present invention, securing the cooling ability of the roll normally guides the cast steel without extending or modifying the service life of the cast steel, For example, if the roll is not cooled normally or a local cooling deviation occurs, the roll will easily deform, which will adversely affect the quality of the roll and the life of the roll.

However, as described above, most known strand guide rolls have the structure in which the roll shells are assembled between the bearings on the roll shaft of the cylinder where the bearings are assembled at multiple points. Therefore, even if the coolant flows to the roll shaft, Since the roll of the present invention has multiple layers of heat transfer paths, the cooling efficiency is lower than that of the guide roll of the present invention, which is transferred to the cooling water in the cooling water passage. .

At this time, although the cooling water passage 50 is described below, it is natural that other cooling media can be used.

2 to 4, the plurality of unit rolls 30 provided in the guide roll 1 of the present invention are arranged on both sides of the guide roll, and more specifically, Side unit roll (32) to which the inlet and outlet cooling water lines (pipes) connected to each other through the rotary joint parts are connected, and at least one central-side unit roll (34), and is rotatably linked via a bearing unit (10).

However, in the following description of this embodiment and the drawings, it is explained and illustrated that two side-side unit rolls 32 are connected to both sides and one central-side unit roll 34 is interposed therebetween. However, Of course, can be further increased.

2 to 4, in the guide roll 1 according to the present invention, one side of the side unit side rolls 32 (on both outer sides of the guide rolls) And a second roll rotation supporting portion 38 assembled to the unit 10 are integrally provided.

At the same time, on both sides of the center side unit rolls 34 facing to the other side (direction toward the center side unit roll) of the side side unit rolls 32, a first roll rotation The support portions 36 are integrally protruded.

Therefore, in the guide roll 1 of the present invention, each of the first and second roll rotation supporting portions 36, 38 is assembled into a total of four bearing units 10, and its rotational operation is realized.

In the case of the second roll rotation supporting portion 38, the length of the second roll rotation supporting portion 38 is longer than that of the first roll rotation supporting portion 36 and assembled to one bearing unit 10. The first roll rotation supporting portion 36 has one Is shorter than the second roll rotation support portion (38) because it is assembled to both sides of the bearing unit (10).

That is, the first and second roll rotation support portions 36 and 38 provided in the unit rolls of the present invention may be adjusted corresponding to the length of the inner ring portion (see 18 in FIG. 4) of the bearing unit 10.

2 and 3, a gap is formed between the bearing unit 10 and the unit roll, although not shown as a separate reference numeral. Such a gap is a space for compensating for the expansion of the unit roll at a high temperature 5, a gap (gap) is also formed between the ends of the roll rotation support 36 to compensate for the expansion of the unit roll.

2 to 4, in the case of the guide roll 1 of the present invention, the second roll rotation support portion 38 is disposed on the outer side of the unit side unit rolls 32 disposed on both sides of the apparatus, The first roll rotation support portions 36 are provided on both sides of the other side of the unit side roll 32 and on the opposite sides of the center side unit roll 34 facing to each other.

Meanwhile, the bearing unit 10, which is the roll rotation support means, may be formed by assembling the first and second roll rotation support portions 36 and 38 provided on the unit rolls, or more preferably, The assembly ring 90 in which the first roll rotation support portions 36 are assembled can be assembled.

Therefore, the guide roll 1 of the present invention is characterized in that the first and second roll rotation supports 36 and 38 of the side unit rolls 32 and one or more center side unit rolls 34 interposed therebetween are supported by the bearing The cast steel S having a predetermined width can be guided while contacting each of the unit rolls, and the heat of the casting can be guided along the unit rods, And is directly transferred to the cooling water circulated from the inside through the unit roll, thereby ensuring an effective cooling capability.

As described briefly above, referring to Figs. 2 and 3, and as shown in Figs. 4 and 5, more preferably, the guide roll 1 of the present invention preferably has the above- And an assembly ring 90 connected between the other side of the side unit rolls 32 on both sides and the first roll rotation support 36 provided on both sides of the center side unit roll 34.

That is, the assembling ring 90 as described above is provided on the side where the unit rolls are connected, that is, on the other side of the unit side unit roll and the other side of the unit side unit roll, and the first roll rotation supporting portion 36 is assembled Location.

4 and 5, the assembly ring 90 is assembled to the inner ring portion 18 of the bearing unit 10, and the first roll rotation support portion 36 is assembled to the assembly ring 90 ). ≪ / RTI >

Needless to say, the assembly ring 90 is designed so that the first roll rotation support 36 assembled to the assembly ring as a cylindrical body is also cylindrical, and its outer diameter is tightly fitted and supported by the inner diameter of the assembly ring 90.

Of course, the assembly ring 90 is assembled by inserting the joint portion of the unit roll, that is, the first roll rotation assembly 36, from both sides, and the assembly ring 90 is fastened to the bearing unit 10, The second roll rotation support portions 38 on both sides of the unit roll 32 can be assembled to the bearing unit 10 disposed on both sides immediately without the assembling ring because the rolls are not connected.

2 to 5, the first roll rotation support portions 36 are shown as being assembled via the assembly ring 90. However, as described above, the first roll rotation support portions 36 are formed by the assembly rings 90 The inner ring portion 18 of the bearing unit 10 can be assembled directly.

However, it is preferable that the first roll rotation supporting portion 36, that is, for example, one side first roll rotation supporting portion 36 of the side side unit roll 32 and the first side roll rotation supporting portion 36 of the center side unit The first roll rotation support portion 36 of the roll 34 or both the first roll rotation support portions 36 of the center side unit roll are inserted and assembled. In this case, the assembling ring will stably maintain the rotation of the unit rolls while making uniform contact with the inner ring part of the bearing unit, while solidifying the assembling structure (rigidity) of the connecting part of the unit roll.

On the other hand, since the first roll rotation support portions 36 of the unit rolls are closely inserted and assembled on both sides of the assembly ring 90, the assembly ring will be able to transmit rotational force between the unit rolls.

However, when one of the unit rolls is not rotated due to an external factor or the like, it is difficult to transmit the rotational force between the unit rolls only with the assembly ring 90. [

7 and 8, the assembly ring 90 and the first roll rotation support portion 36 can be provided through the rotation force transmission means so as to be capable of transmitting the rotational force between the unit rolls .

As will be described in detail below, the passage connecting sealing means 70 of the present invention is characterized in that the first roll rotation support portion 36 is assembled to the assembly ring 90, and between the cooling water passages 50 And sealing ability is enhanced to prevent leakage. Particularly, such a sealing means 70 for connecting the passages enables effective prevention of leakage of water or the like at the joint portions of the unit rolls on both sides.

For example, even when the width of the cast steel S is the smallest, the width of the cast steel comes into contact with the center side unit roll 34 and the side side unit rolls 36 on both sides thereof, The rolls 32 and 34 are rotated by applying rotational force.

However, in the case where the casting is not normally cast and is bent by other external factors or the like, the casting and the unit roll contact may not be performed in one of the side rolls 32. In this case, And the rotation of some of the unit rolls is stopped.

However, since the passage connecting sealing means 70 of the present invention, which will be described in detail below, is connected between the cooling water passages 50 to the connecting portion of the unit rolls 32 and 34, This makes it possible to distribute stable cooling water without leaking easily.

5 and 6, according to the structure in which the first and second roll rotation supporting portions 36 and 38 or the assembling ring 90 are assembled, the bearing unit 10 of the present invention is configured such that, The bearing units on both sides and the center side bearing unit may differ only in the structure of the bearing blocks 12 and 12 ', but the basic bearing structure is the same.

For example, as shown in Figs. 4 and 5, the two bearing units 10 on the center side, which are arranged at the center and on which the assembling ring 90 assembled with the first roll rotation supporting portions 36 are assembled, The housing 22 is assembled on both sides of the bearing block 12 in which the bearing 16 is assembled and the inner ring portion 18, the dual bearing 16 and the outer ring portion 20 are assembled to the inside of the bearing block 12, There is provided a retainer 24 forming an oil chamber to be supplied.

At this time, a space (not shown) for compensating the expansion of the unit roll is formed between the both side housings 22 of the bearing unit and the unit roll.

5 and 6, the space between the covers 14 covered with the bearing blocks 12 and 12 'of the bearing unit 10 can be provided with circulating cooling water.

4 to 5, when the assembly ring 90 is fastened to the inner ring part 18 of the bearing unit 10 and the first roll rotation parts 36 of the unit rolls are tightly inserted into the assembly ring, The ring is supported by the bearing unit.

2 and 3, one of the upper and lower portions of the bearing block 12 of the bearing unit 10 is elongated to be assembled to a segment frame of a strand line, for example, The blocks 12 and 12 'may be provided with supply passages (not shown) to which grease or the like is supplied.

In this case, as shown in Figs. 2 and 4 and as shown in Fig. 6, in the case of the two bearing units 10 on the side of the side where the second roll rotation supporting portion 38 of the side unit side roll 32 is assembled, The structure of the bearing block 12 'is different from that of the center side bearing unit 10 and the bearing block 12' has a structure in which the housing is integrally formed on one side. The bearing block 12 ' A stationary ring 26 (a stationary ring on the inner side of the bearing is not shown) for supporting the outer rim portion 20 and the inner ring portion 18 is assembled and the stationary retainer 28 is fixed to the outer side of the bolt B And a fixed ring portion 29 to which a cooling water line is connected in a rotary manner to the bearing block 12 'can be assembled with a bolt.

At this time, the dual bearing 16 is assembled to the outer ring part and the inner ring part of the bearing unit 10, and in the case of the center side bearing unit 10, (20).

Therefore, the guide roll 1 of the present invention guides the progress of the casting stably while the roll rotation supporting parts are mounted to the bearing units 10 so that the rotational force can be transmitted. Other, unexplained components of the bearing unit are known.

2 to 5, the guide roll 1 of the present invention includes a cooling water passage 50 integrally formed through an inner central portion of the unit guide rolls. In particular, the guide roll 1 of the present invention The cooling water passage 50 is not simply connected by a pipe or the like but the cooling water can be circulated while the cooling water passages are connected by using the passage connecting sealing means 70. [

Therefore, in the case of the present invention, instead of simply connecting the unit side rolls and the cooling water passages 50 associated with the central unit rolls by a pipe or the like, the passage connecting sealing means of the present invention 70, the leakage of water from the passage connecting portion is effectively blocked, so that the decrease in the cooling efficiency due to the leakage does not occur.

For example, as shown in Figs. 4 and 5, the passage connecting sealing means 70 provided in the guide roll 1 of the present invention has the unit rolls 32 on the side and center sides, The end of the cooling water passage communicating with the cooling water passage 50 or the cooling water passage formed in the inside of the first roll rotation support portion 36 provided in the first roll rotation support portion 34 is inserted into the end assembly groove portion 72 of the roll, And one or more sealing members provided on the sleeve 74. The sleeve 74 may be provided with a sleeve 74,

Preferably, as shown in Figs. 4 and 5, the sleeve 74 of the present invention has an inner diameter enlarged and processed at the end of the cooling water passage 50 facing each other or the cooling water passage 50 of the unit roll And first and second sleeves 76 and 78, which are tightly assembled and fitted to each other in the assembly groove portion 72 of the roll.

More preferably, the first sleeve 76 of the sleeve 74 of the sealing means of the present invention is provided with the cooling water passage (not shown) of the central unit roll 34 or the side unit roll 32 as shown in Figs. 4 and 5, The cooling water passage 50 provided at the end of the cooling water passage 50 or the assembly groove portion 72 which is enlarged in inner diameter than the cooling water passage and is integrally formed on the roll.

Specifically, the first sleeve 76 is integrally extended from the cooling water passage or, preferably, the body portion 76 'fitted to the fitting groove portion 72 and the body portion 76' And a stretching portion 76 "where the sleeve 78 is assembled from the outside.

At this time, a cooling water passage 50 'communicating with the cooling water passage 50 of both unit rolls is integrally formed on the inside of the first sleeve 76.

At the same time, the second sleeve 78 is tightly fitted between the outer side of the extension 76 "of the first sleeve 76 and the assembly groove 72 of the unit roll.

Therefore, the sleeve 74 of the passage connecting sealing means 70, that is, the first and second sleeves 76 and 78 of the passage connecting means of the present invention can be connected to the end of the cooling water passage 50 of both unit rolls, ) Of the second sleeves (76) while tightly adhering tightly to the assembling recesses (72) formed by enlarging the inner diameters of the first sleeves (76) and the second sleeves (76) The cooling water passage 50 'of the first sleeve 76 is communicated with the cooling water passage 50' of the first sleeve 76 through the cooling water passages 50 while tightly sealing the cooling water passages 50 so that the cooling water flows smoothly through at least the unit rolls, To implement what is circulated without.

In particular, as shown in Figs. 4 to 5, the first and second sleeves 76 and 78 of the present invention are in close contact with each other between the roll surface of the assembly groove 72 of the unit roll and the first and second sleeves, respectively. A plurality of packings 80 (eg, O-rings) that are in close contact with each other are provided on the outer edge of the first and second sleeves 76 and 78 and on the second sleeve (inner edge), respectively.

At the same time, a ring-shaped packing member 82 is further interposed between the first and second sleeves 76 and 78.

5A to 5C, the passage connecting sealing means 70 of the present invention is such that the first and second sleeves closely contact the roll surface in the mounting groove portion 72 of the roll, Since at least a pair of packings 80 are provided between the surface and the sleeves and the packing 80 and the packing member 82 are also interposed between the first and second sleeves 76 and 78 assembled with each other, The cooling water flowing through the cooling water passage 50 and the inner cooling water passage 50 'of the first sleeve 76 is not leaked at all at the joint portion of the roll.

As a result, since the cooling water is not leaked, the cooling water leaking from the inside of the roll is prevented from corroding the bearing parts and the like. In particular, the cooling efficiency of the roll is lowered So that the cost of maintaining the machine cooling water can be reduced.

Particularly, since the passage connecting sealing means 70 of the guide roll 1 of the present invention has a structure in which the packing 80 is tightly provided between the roll surfaces, one unit of unit rolls connected to both sides of the sealing means Wear of the packing with resilience of the wear resistance even if the roll is poor is smaller than that of simply connecting the pipe between the passages, or is less than simply connecting with the O-ring, so that wear suppression can also be expected.

For example, when the unit roll, that is, the first roll rotation support portions 36 of the unit side rolls 32 or the center side unit rolls 34 is assembled to the assembly ring 90, Is not deformed (for example, bent) and does not uniformly contact the unit rolls so that one unit roll is not in contact with the cast steel S, 70 is capable of suppressing the occurrence of a local concentrated load (abrasion), as compared with a case where the cooling water passage 50 is simply connected with a pipe or the like through the assembly structure of the first and second sleeves and the packing 80 .

That is, when the cooling water passage is simply connected by a pipe instead of the passage connecting sealing means 70 of the present invention, if one of the unit rolls does not rotate due to external factors such as material deformation, Intensive abrasion of the connection portion is caused.

In particular, the guide roll 1 of the present invention can easily assemble the unit rolls with the bearing unit and the sleeve structure (linking means), while implementing the guide rolls in combination with the unit rolls having excellent cooling efficiency, It is possible to use a plurality of unit rolls. This is because even if the number of the slide guides installed in the bearing unit of the roll is increased, the problem of leakage from the roll (cooling water passage) Therefore, it is possible to secure the rigidity of the roll, which makes it possible to reduce the diameter of the roll, thereby making it possible to reduce the cost in manufacturing the guide roll.

On the other hand, as shown in Figure 5a, More preferably, the packing (80) (O-ring) is assembled to the first and second sleeves 76 and 78 of the sealing means 70 for the passage connection of the present invention Assembly grooves 76a and 78a are provided, and an assembly groove 78a 'is provided to which the packing member 82 is assembled.

The outer circumferential surface of the first and second sleeves 76 and 78 of the passage connecting sealing means 70 is formed in the mounting groove portion 72 provided at the end of the cooling water passage 50 of the unit roll of the present invention, The supporting jaws 72a are integrally provided so that the assembly grooves 72 of the rolls of the first and second sleeves are fixed and the assembling structure is made rigid .

Next, in FIGS. 7 and 8, one side and the other side of the side rollers 32 and 34 assembled to the assembly ring 90 and the assembly ring 90 in the guide roll 1 of the present invention, The rotational force transmission means is provided to the first roll rotation support portion 36 provided on the first roll rotation support portion 36. [

In other modified embodiments of the guide roll according to the present invention shown in FIGS. 7 and 8, the rotational force between the unit rolls is transmitted to a portion where the unit rolls are assembled, so that the strip S contacts the unit roll So that the rotating force of the adjacent unit roll to be rotated is transmitted even if the unit roll is not rotated, so that the unit rolls are rotated when passing through the cast as much as possible.

7 and 8, the basic structure of the guide roll 1 of the present invention is the same as the structure of the guide roll of the present invention shown in Figs. 2 to 6.

That is, in the case of the guide roll including the torque transmitting means of the present invention, since the rotational force between the unit rolls is transmitted to the adjacent unit rolls, deformation such as banding of the casting roll occurs in one of the unit rolls, Even when one or plural unit rolls are not rotated because the contact is not made or rotation of the unit rolls is not smooth due to malfunction of one of the bearing units 10 enabling rotation operation of the unit rolls, Thereby enabling rotation of the rolls.

Therefore, in this case, the progress of the cast steel during the continuous casting will be stably maintained, and surface defects or the like of the cast steel due to the local friction with the cast steel due to the rotation failure of some unit rolls will not be generated.

That is, since the structure of transmitting the rotational force between the unit rolls uniformly rotates the entire unit rolls, it prevents the local (local) intensive wear of the unit rolls. Therefore, the period of periodic polishing, It is possible to extend the lifetime of the roll, thereby making it possible to reduce the cost.

7 and 8, the rotational force transmitting means provided in the guide roll 1 of the present invention includes a first roll rotation support portion 36 provided on the side and center side unit rolls 32 and 34, And the rotational force is transmitted to the outer periphery of the first roll rotation support portion 36 which is closely assembled with the inner surface of the assembly ring 90 which is fastened to the inner ring portion 18 of the bearing unit 10. [

For example, in the present invention, as an example of the rotational force transmitting means, although not shown in the figures, the first roll rotation support portion 36 (provided on the side and center side unit rolls 320 (34) Can be provided in the form of a spline or a key that is assembled to transmit the rotational force, although the horizontal displacement (flow) is possible.

Alternatively, as shown in Figs. 7 and 8, the rotational force transmitting means of the other type may include an inner surface of an assembling ring 90 fastened to the bearing unit 10, And can be provided as a polygonal contact surface 92b or 92a which is engaged with the outer surface of the support part 36 to transmit rotational force or an arm or a male coupling part (concave / convex part) not shown in a separate figure.

Therefore, the assembly ring 90 is forcibly rotated when one of the assembled first roll rotation support portions 36 is applied, and therefore, the other first roll rotation support portion 36 is rotated by the non-contacted casting, The rotational force is applied even if it is not rotated.

8A, grooves 92b 'are integrally formed at a boundary portion of the polygonal contact surface 92b provided on the inner surface of the assembling ring 90 so that the polygonal contact surface 92b' of the first roll rotation supporting portion 36 92a. That is, the grooves 92b 'facilitate the insertion of the assembling ring at the boundary edge portion of the polygonal contact surface of the first roll rotation supporting portion, thereby facilitating the assembly and suppressing fatigue failure due to stress concentration.

Of course, as described above, the rotating force is applied even when the inner surface of the assembling ring and the outer rim of the first roll rotation supporting portion are formed into a cylindrical body, but concave / convex portions (female and male fastening portions) .

As a result, rotational force is applied between the unit rolls due to the linkage structure of the unit ring and the assembling ring 90 including the rotational force transmitting means of the present invention shown in Figs. 7 and 8, Compared to the assembly of the assembly rings of the rolls and the insertion of the first roll rotation support, the structure is complicated, but enables the uniform rotation of the unit rolls and allows the passage connection seals of the present invention The unit 70 is rotated at the same time when the unit roll is rotated, so that wear due to the rotation failure of the unit roll as shown in Figs. 2 to 6 will not occur.

Of course, since the passage connecting sealing means 70 of the present invention basically blocks the leakage of the cooling water at the unit-roll connecting portion, it is possible to prevent leakage of the cooling water to the guide rolls of the present invention shown in Figs. 2 to 6 or Figs. 7 and 8 What is used is to provide several advantages.

Accordingly, the guide roll 1 of the present invention described so far can smoothly transfer heat as a unitary roll structure of the cylinder while stably guiding the high-temperature cast steel S, that is, the high-temperature material, Since the cooling water passage of the unit roll is connected to the passage connecting sealing means 70 of the present invention only, stable cooling water flow and wear can be suppressed without rotating the unit roll.

1 .... High-temperature material guide roll unit 10 .... Roll rotation support unit (bearing unit)
30 .... unit roll 32 .... side unit roll
34 .... Central side unit roll 36 .... First rotation support
38 .... second rotary support 50 .... cooling medium passage
70 .... Passage sealing means 72 .... Assembly groove
74 .... Sleeves 76,78 .... First and second sleeves
76 '.... sleeve body portion 76' .... extension portion
80 .... packing 82 .... packing member
90 .... Assembly rings 92a, 92b .... Multiple faces (torque transmission means)

Claims (8)

A plurality of unit rolls (30) rotatably provided on the path of the high temperature material so as to guide the progress of the high temperature material; And
Passage connecting sealing means (70) connected between the cooling medium passages (50) provided in the unit roll (30);
High temperature material guide roll device configured to include.
The method of claim 1,
The unit roll is rotatably provided via a bearing unit (10)
Side unit rolls 32 disposed on both sides of the apparatus; And
At least one central side unit roll (34) interlocked between the side side unit rolls;
Wherein the high-temperature material guide roll device comprises:
The method of claim 3,
An assembly ring (90) provided between the unit roll and the bearing unit (10), in which a unit roll is assembled;
Further comprising: a high-temperature material guide roll device for heating the high-temperature material.
The method of claim 3,
Rotation force transmission means provided to the assembly roll 90 and the unit roll assembled to the assembly ring, the rotational force transmission of the roll;
Further comprising: a high-temperature material guide roll device for heating the high-temperature material.
5. The method according to any one of claims 1 to 4,
The passage connecting sealing means 70 includes a sleeve 74 connected between the cooling medium passage 50 provided in the unit roll or the mounting groove portion 72 provided in the unit roll so as to communicate with the cooling medium passage; And
At least one sealing member provided on the sleeve 74;
High temperature material guide roll device, characterized in that configured to include.
The method of claim 5,
The sleeve 74 includes first and second sleeves 76 and 78 which are tightly inserted into the assembling grooves 72 of the cooling medium passages or rolls facing each other, and are assembled with each other and the cooling medium flows inward. and,
The sealing member may include: a packing 80 provided in the first and second sleeves to maintain a sealing between the sleeve and the roll;
High temperature material guide roll device comprising a.
The method according to claim 6,
The first sleeve 76 is a body portion 76 'fitted into the assembly groove 72 of the cooling medium passage or the roll, and an extension portion in which the second sleeve 78 is assembled outside while being extended from the body portion. (76 "),
The sealing member may include: a packing member 82 provided between the extension portion 76 "of the first sleeve 76 and the second sleeve 78;
High temperature material guide roll device further comprising a.
The method according to claim 6,
The support tabs 72a for supporting the engagement protrusions 76b and 78b of the first and second sleeves 76 and 78 are integrally formed with the assembly groove 72 formed at the end of the cooling medium passage of the unit roll Wherein the high-temperature material guide roll device further comprises a high-temperature material guide roll device.

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