KR100807566B1 - Roll and segment have no rotary joint - Google Patents

Abstract

The present invention relates to a roll and a segment in which a rotary joint is not mounted, and includes: an inner pipe disposed in a longitudinal direction through a center of a roll mounted on a segment frame; An inner pipe external flow path communicating with an end of the inner pipe and configured to allow the coolant to flow in the same length on the outer circumference; A drain block connected to one end of the inner pipe external flow path and provided at one end of the shaft of the roll so as not to interfere with the rotation of the roll so that cooling water can be discharged; An inlet cooling water block installed at an adjacent side of the drain block and in communication with an inlet side of the inner pipe in the same manner as the drain block; It is configured to include a bellows pipe for connecting the side cooling water block and the inner pipe.

According to the present invention, in the roll to which the coolant is supplied, the connection between the frame and the roll is connected to the manifold block and the insert and the bellows pipe is used to extend the life of the equipment without using the rotary joint in use to cool the roll. It works.

Description

ROLL AND SEGMENT HAVE NO ROTARY JOINT}

1 is a front view and a side view of a segment according to the prior art,

Figure 2 is a sectional view of the main portion of the segment according to the prior art,

3 is a front view of a segment without a rotary joint according to the present invention;

4 is a cross-sectional view of a roll according to the present invention;

5 is an external view of a roll according to the present invention.

Explanation of symbols on the main parts of the drawings

100a, b: segment frame 200a, b: roll

201d: Bellows pipe 201b, 202c: Insert

203a: bearing housing 210a, b, c, d: manifold block

The present invention is a rotary joint in which a cooling water is supplied to a rotary joint which extends the life of the equipment by connecting the connection portion between the frame and the roll with the manifold block and the insert and using bellows pipe without using the rotary joint in use to cool the roll. Relates to rolls and segments not mounted.

In general, segment equipment is used to produce slabs in a performance factory.

As shown in FIG. 1, the segment equipment includes an upper frame 1b and a lower frame 1a, pillars 5a.5b for fixing them, and upper and lower rolls 2a, b, c, and d.

Here, the slab is passed between the upper and lower rolls (2a, b, c, c) to produce a product of a suitable thickness, at this time to prevent the roll degradation because the deterioration of the roll occurs as the high-temperature slab passes through Rotary joint (10a.bcd) for supplying the coolant in the roll serves to supply the coolant to the roll is assembled and rotated by the frame and the flexible tube (33a.b).

As shown in FIG. 2, the rotary joints 10a, b, c, and d have a bush 30a mounted on a roll, a rotating rotor 31d, a spring 30c supporting the same, and a coolant leak. Various seals (SEAL) 31a and b for prevention are assembled, and the rotor 31d is connected to the frame 32a and nipples 32b and 32c for supplying cooling water. The rotary joint and the coolant pipe are assembled by using the flexible tubes 33a and b. To assemble the rotary joint to protect the rotary joint attached to the roll and to prevent the coolant leakage when the roll is deformed by heat. .

However, since the flexible tube and the rotary joint are exposed to the outside of the facility, the service life is short due to scale and foreign substances generated during casting, occupies a lot of space during assembly, poor maintenance, and short service life.                         

In addition, the rotary joint has a disadvantage that the price is high and the service life is only one time.

The present invention is provided to solve the problems of the prior art as described above, for cooling the rotating roll to cool the inside of the roll using a manifold block and insert without using a rotary joint assembled to the roll as in the conventional method. The purpose is to provide rolls and segments that do not have rotary joints that can be mounted.

The above object of the present invention is an inner pipe disposed in the longitudinal direction through the center of the roll mounted to the segment frame; An inner pipe external flow path communicating with an end of the inner pipe and configured to allow the coolant to flow in the same length on the outer circumference; A drain block connected to one end of the inner pipe external flow path and provided at one end of the shaft of the roll so as not to interfere with the rotation of the roll so that cooling water can be discharged; An inlet cooling water block installed at an adjacent side of the drain block and in communication with an inlet side of the inner pipe in the same manner as the drain block; A rotary joint is achieved by providing a roll and segment that is not mounted, comprising a bellows pipe connecting the incoming coolant block and the inner pipe.

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the present invention at the same time.

In FIG. 3, rolls 200a, b, c, and d are mounted on segment frames 100a and b, which are main devices, and coolant is provided at both ends of the rolls to cool the rolls 200a, b, c and d. Manifold blocks (210a, b, c, d) that can supply the are provided.

The manifold blocks 210a, b, c, and d serve to supply the coolant to the inside of the roll through which the slab of high heat passes during casting.

Referring to FIG. 4, when the coolant enters the coolant tank 201c outside the roll through the insert 201b in the inlet coolant block 201a, the bellows assembled in the block is welded through the pipe 201d. The bush 201e assembled inside the roll is connected to the inner pipe 201f so that the cooling water can be supplied to the rotating roll.

The supplied cooling water passes through the inner pipe 201f inside the roll to the end of the roll, and the cooling water is discharged out of the roll through the outer passage 202a of the inner pipe inside the roll.

The discharged cooling water is collected inside the drain block 202b and is discharged to the outside of the frame through the drain insert 202c.

Two oil seals 204a and b are assembled in a double manner so that the coolant cannot flow into the bearing in the direction where the coolant is collected and drained.

The oil seals 204a and b are pushed in the roll direction so that the coolant cannot escape to the outside by the coolant pressure drained during casting.

In addition, when the oil seals 204a and b are worn out and the coolant leaks to the bearing side, the coolant is allowed to escape through the drain hole 202e so that the coolant does not enter the bearing side.                     

In addition, the grease supply hole 204c is installed on the bearing 204 side assembled to the roll 200a to supply grease (lubricating oil) supplied to the inside of the bearing during casting to supply grease to the bearing assembled to the roll in use. Give it.

On the side of the bearing housing 203a, two oil seals 203e and f are assembled in duplicate so that grease supplied to the bearing cannot be drained to the side to which the cooling water is supplied during casting.

Further, one oil seal 203g is assembled to the bearing cover 203b on the roll side so that grease can be drained in the roll direction.

The oil seal 203g prevents foreign matter from entering the roll during casting.

The inserts 201b and 202c, which are assembled to the coolant blocks 201a and 202d, have a circular end, and can move in any direction from side to side, even after the deformation of the roll, and to prevent leakage of the coolant. It is assembled up and down, and O-ring is assembled on the upper part to prevent foreign matter from penetrating.

Here, the most important is a structure in which the cooling water can be supplied without the bellows pipe 201d and the rotary joint manufactured by welding the pipe to the bellows made of stainless steel.

As described in detail above, the present invention can reduce the expensive rotary joint purchase cost and flexible tube purchase cost by using the internal cooling of the roll without using the rotary joint on the roll requiring the internal cooling, the use of the rotary joint Since it is not possible to reduce the equipment troubles caused by the scale failure, there is an advantage that the foreign matter does not penetrate the roll bearing part because the part where the coolant is supplied to the roll is a manifold block.

Claims (3)

An inner pipe 201f disposed in the longitudinal direction through the center of the rolls 200a, b, c, and d mounted on the segment frames 100a and b; An inner pipe outer flow passage 202a which is in communication with an end of the inner pipe 201f and formed so that cooling water can be distributed at the same length on its outer circumference; A drain block 202b connected to one end of the inner pipe external flow path 202a and provided at one end of the shaft of the rolls 200a, b, c and d so as not to interfere with the rotation of the roll; An entry coolant block (201a) installed adjacent to the drain block (202b) and in communication with an inlet side of the inner pipe (201f); And a bellows pipe (201d) connecting the side cooling water block (201a) and the inner pipe (201f). The roll and segment of claim 1, wherein a coolant tank (201c) is installed between the side cooling water block (201a) and the bellows pipe (201d) to temporarily store coolant. The rotary joint of claim 1, wherein a drain hole 202e is disposed between the drain block 202b and the bearing housing 203a to prevent the leaked coolant from flowing into the bearing 204. Unmounted rolls and segments.

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