KR100387372B1 - A rolling roll for turks - head of rolling mill - Google Patents

Abstract

The present invention relates to a rolling roll for the tux head of a rolling mill according to the present invention, and an object thereof is to improve the structure of the rolling roll so that the shaft can be reused as it is, even when replacement of the rolling roll is required.

According to the tux head rolling roll 30 of the rolling mill according to the present invention for this purpose; Both ends are fixed to both side walls of the roll block 20, and the center portion is hollow so that the support shaft 31 having the roll fastening portion 31a is formed on the center and the roll fastening portion 31a of the support shaft 31 is fitted. A donut-shaped roll member 32 consisting of a portion 32a, and a bearing member 33a, 33b that is fitted to the hollow portion 32a of the roll member 32 to support rotation of the roll member 32. And a fastening member 34 for detachably fastening the roll member 32 provided with the bearing members 33a and 33b to the roll fastening portion 31a of the support shaft 31. Accordingly, when replacing the rolling roll 30 of the tux head due to long time use, after disassembling only the roll member 32 from the roll fastening portion 31a of the support shaft 31 and installing a new one, the rolling roll 30 There is an effect that the replacement operation is easily completed, and the support shaft 31 has the effect of preventing the waste of resources by reusing as it is.

Description

Rolling roll for tux head of rolling mill {A ROLLING ROLL FOR TURKS-HEAD OF ROLLING MILL}

The present invention relates to a tux head of a rolling mill, and more particularly, to a rolling roll for a tux head of a rolling mill that applies a predetermined pressing force to produce a release wire rod.

In general, the release wire is to refer to the wire rod other than the concentric section, the rolling production process is carried out through the tux head is equipped with two pairs of rolling rolls on the rolling stand.

That is, the tux head of a conventional rolling mill has a frame fixed to a rolling stand, a pair of horizontal rolling rolls arranged to the left and right to idle at a predetermined distance to the frame, and a direction perpendicular to the pair of horizontal rolling rolls. It consists of a pair of vertical rolling rolls and the like arranged up and down. And each of the horizontal rolling rolls and vertical rolling rolls is provided with a shaft integrally on the center, both ends of the shaft is rotatably mounted to the frame of the tux head.

Therefore, the wire rod is rolled while continuously passing between the rolling rolls. At this time, since the rolling rolls are installed in four directions, surface roughness is better than drawing, and accurate dimensions and shapes and improved metal structures can be obtained.

On the other hand, in such a conventional rolling mill tux head, if the rolling roll is used for a long time, its surface is abrasion-damaged, and thus it is impossible to apply a pressing force uniformly. Therefore, in the case of using the rolling roll for a long time, it should be replaced with a new one.

However, in the conventional tux head rolling roll structure, since the shaft is integrally formed, the rolling roll must be completely disassembled together with the shaft while completely disassembling the rolling roll. Therefore, it is difficult to replace the rolling roll, and no damage is caused. There is a problem that a considerable resource is wasted by replacing the shaft part.

The present invention is to solve this problem; It is an object of the present invention to improve the structure of the rolling rolls so that the shaft can be reused even when replacement of the rolling rolls is required, thereby preventing the waste of resources and at the same time for the tux head of the rolling mill which can facilitate the replacement work. It is to provide a rolling roll.

1 is a front view showing the tux head of the rolling mill according to the present invention.

2 is a perspective view of the tux head in accordance with the present invention.

3 is a perspective view showing an extract of a rolling roll according to the present invention.

4 is an exploded perspective view of a rolling roll according to the present invention.

5 is a cross-sectional view taken along the line V-V of Figure 3, showing the assembled state of the rolling roll.

Figure 6 shows the disassembly of the guide ring in the roll member according to the present invention.

* Description of the symbols for the main parts of the drawings *

30. Rolling roll 31. Support shaft

31a.Roll fastening part 32.roll member

32a.Heavy part 32b.

33a, 33b..bearing member 34..fastening member

35a, 35b..Guide Rings

The present invention for achieving this object is;

In the tux head of the rolling mill, which is installed on a rolling stand and has a frame in which a wire rod passes through from the rear to the front side, and a roll block disposed on the frame so that a rolling roll for rolling the wire rod is rotatably installed.

The rolling roll is a donut-shaped roll member having both ends fixed to both side walls of the roll block and having a roll fastening portion formed on a central portion thereof, and a central portion formed of a hollow portion so as to be fitted into the roll fastening portion of the support shaft, and the roll member. It is characterized in that it comprises a bearing member which is inserted into the hollow portion of the support for supporting the rotation of the roll member, and a fastening member for detachably fastening the roll member provided with the bearing member to the roll fastening portion of the support shaft .

In addition, one end of the roll fastening portion is provided with an outward flange with a diameter extending in the radial direction, a male screw is provided on the outer periphery of the other end of the roll fastening portion,

The fastening member is characterized in that it comprises a stopper nut is screwed to the male screw of the roll fastening portion after the roll member is fitted to the roll fastening portion.

The fastening member may further include a washer disposed between the stopper nut and the roll member.

In addition, a key groove is provided in the axial direction on the outer circumference of the other end of the roll fastening portion.

The inner circumference of the washer is characterized in that the stopper for catching the key groove to prevent rotation.

In addition, the hollow portion of the roll member is provided with a partition portion protruding annularly along the center of the inner wall partitioning the hollow portion to the left and right,

The bearing member may be a pair of tapered roller bearings installed to face the partition and face each other on the left and right sides thereof.

In addition, the left and right sides of the hollow portion is characterized in that the pair of guide rings made of a tapered surface of the inner circumference so as to roll motion while the tapered roller bearing is in surface contact with the opposite side is pressed in.

In addition, the partition portion is characterized in that the tool engaging groove for removing the guide ring through the tool is formed at regular intervals.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2, the tux head of the rolling mill to which the present invention is applied is to roll the release wire is transferred to the external power, the frame 10 is installed on the top of the rolling stand to form an outer body, The front surface of the frame 10 is arranged in four directions at intervals of 90 degrees and is provided with four roll blocks 20 each provided with a rolling roll 30 for rolling the wire rod.

Frame 10 is made of a metal disc shape having a predetermined thickness, a circular through hole 11 is bored in the center portion thereof to allow the release wire to be rolled through freely.

Four roll blocks 20 are disposed in the front and rear directions of the frame 10 around the through holes 11, and the roll rolls 30 are idle in a predetermined gap while maintaining a predetermined gap. Is installed. At this time, both ends of the support shaft 31 of the rolling roll 30 to be described later are fixedly installed through a pair of fixing members 21 fastened to both side walls of the roll block 20 by bolts 22.

These rolling rolls 30 have to be replaced when the outer peripheral surface is damaged when used for a long time, it is configured to reuse the support shaft 31 as it is during the replacement operation.

That is, referring to FIGS. 3 to 5, the rolling roll 30 according to the present invention includes a support shaft 31 having both ends fixed to both side walls of the roll block 20, and a center of the support shaft 31. A donut-shaped roll member 32 coupled to an area to be rotatable, bearing members 33a and 33b provided at the center of the roll member 32, and roll member 32 in the center of the support shaft 31 Includes a fastening member 34 for fastening detachably to the site, the detailed structure of each component is as follows.

First, as described above, both ends of the support shaft 31 are fixedly installed at both sides of the roll block 20 through the fixing member 21, and the diameter thereof is expanded so that the roll member 32 is fastened to the central portion thereof. The roll fastening part 31a which was formed is integrally formed. One end of the roll fastening portion 31a is provided with an outward flange 31b with a diameter extending in the radial direction, and a male screw 31c is machined for a certain period on the outer circumference of the other end of the roll fastening portion 31a.

The roll member 32 has a central portion formed of a hollow portion 32a so as to be fitted into the roll fastening portion 31a of the support shaft 31. The hollow part 32a of this roll member 32 is provided with the partition part 32b which protrudes annularly along the center of an inner wall, and partitions the hollow part 32a to the left and right.

The bearing member is constituted by a pair of tapered roller bearings 33a and 33b provided to face the partition portion 32b so as to face each other on the left and right sides of the hollow portion 33a. That is, the first tapered roller bearing 33a is disposed on the left side of the hollow portion 32a, and the second tapered roller bearing 33b is disposed on the right side of the hollow portion 32b so as to face the first tapered roller bearing 33a. Is placed. Moreover, the pair of guide rings 35a and 35b in which the inner periphery is a tapered surface is pressed in the left and right sides of the hollow part 32a opposingly. Therefore, the tapered roller bearings 33a and 33b are in contact with the inner circumference of the guide rings 35a and 35b, which makes the rolling motion of the tapered roller bearings 33a and 33b more smoothly.

In addition, in order to remove the press-in guide ring 35a, 35b through a tool, the partition part 32b is provided with the several tool locking groove 32c at regular intervals. That is, the end of the tool is fastened to the tool catching groove 32c and impacted to disassemble the guide rings 35a and 35b (see FIG. 6), which will be described in detail in the description of the disassembly process.

Meanwhile, the fastening member 34 inserts the roll member 32 provided with the bearing members 33a, 33b and the guide rings 35a, 35b into the roll fastening part 31a, and then rolls the fastening part 31a. A stopper nut 34a screwed to the male screw 31c of the screw and a washer 34b disposed between the stopper nut 34a and the roll member 32 to prevent loosening of the stopper nut 34a. Include. In the embodiment of the present invention, the washer 34b applies a toothed washer formed to protrude an elastic piece at regular intervals on the edge thereof. In addition, in order to prevent the washer 34b from rolling off the roll fastening portion 31a, a key groove 31d is provided in the axial direction on the outer circumference of the other end of the roll fastening portion 31a, and on the inner circumference of the washer 34b. The stopper 34c which catches on the keyway 31d is provided.

Next will be described the assembly process and the effects of the rolling roll for tux head according to the present invention configured as described above.

First, the pair of guide rings 35a and 35b are press-fitted into the hollow portion 32a of the roll member 32, and then the first tapered roller bearing 33a and the second tapered roller bearing 33b are sequentially inserted. Put it in.

In this state, when the support shaft 31 is temporarily assembled to the hollow portion 32a of the roll member 32, the second tapered roller bearing 33b fitted to the roll member 32 is in contact with the outward flange 31b. At the same time, the external thread 31c of the roll fastening portion 31a is exposed to the outside. Subsequently, the washer 34b is inserted into the male screw 31c portion of the roll fastening portion 31a. At this time, the stopper 34c of the washer 34b is inserted into the keyway 31d, thereby preventing the washer 34b from turning.

When the stopper nut 34a is completely tightened to the male screw 31c of the roll fastening part 31a, the roll member 32 is firmly fastened to the roll fastening part 31a of the support shaft 31. At this time, the roll member 32 can smoothly rotate through the first and second tapered roller bearings (33a, 33b).

Therefore, when replacing the rolling roll 30 of the tux head due to long time use, the stopper nut 34a and the washer 34b are first disassembled, and then the roll member 32 is disassembled from the support shaft 31. And when the new roll member is mounted on the roll fastening portion 31a of the support shaft 31, the rolling roll 30 replacement work is completed. For this reason, the replacement work of the rolling roll 30 may be easily performed, and the support shaft 31 may be reused as it is to prevent resource waste.

Meanwhile, during the disassembly of the rolling roll 30, the guide rings 35a and 35b pressed into the hollow part 32a of the roll member 32 are disassembled through a tool such as a (−) or (+) driver. That is, as shown in FIG. 6, when the end of the driver is inclinedly inserted into the tool engaging groove 32c and an impact is applied thereto (see arrow direction), the guide ring 35a pressed into the hollow portion 32a ( 35b) comes out easily.

As described in detail above; According to the rolling roll for the tux head of the rolling mill according to the present invention, a donut having both ends fixedly installed at both side walls of the roll block and having a roll fastening portion formed on a central portion thereof, and a central portion having a hollow portion fitted to the roll fastening portion of the support shaft A roll member having a shape, a bearing member fitted to the hollow portion of the roll member to support rotation of the roll member, and a fastening member for detachably fastening the roll member provided with the bearing member to the roll fastening portion of the support shaft. It is included. Accordingly, when replacing the rolling roll of the tux head due to long time use, disassembling only the roll member from the roll fastening portion of the support shaft and then installing a new one can easily replace the rolling roll, and the support shaft can be reused as it is. By doing so, there is an effect of preventing the waste of resources.

Claims (7)

In the tux head of the rolling mill, which is installed on a rolling stand and has a frame in which a wire rod passes through from the rear to the front side, and a roll block disposed on the frame so that a rolling roll for rolling the wire rod is rotatably installed. The rolling roll 30, A support shaft 31 having both ends fixed to both side walls of the roll block 20 and having a roll fastening portion 31a formed on a central portion thereof; A donut-shaped roll member 32 having a central portion formed of a hollow portion 32a so as to be fitted into the roll fastening portion 31a of the support shaft 31; Bearing members 33a and 33b fitted to the hollow part 32a of the roll member 32 to support rotation of the roll member 32; And a fastening member 34 for detachably fastening the roll member 32 provided with the bearing members 33a and 33b to the roll fastening portion 31a of the support shaft 31. Rolling roll for tux head of rolling mill. The method of claim 1, One end of the roll fastening portion 31a is provided with an outward flange 31b having a diameter extending in the radial direction, and an external thread 31c is provided on the outer circumference of the other end of the roll fastening portion 31a. The fastening member 34 includes a stopper nut 34a that is screwed to the male screw 31c of the roll fastening part 31a after the roll member 32 is fitted to the roll fastening part 31a. Rolling roll for tux head of the rolling mill, characterized in that it comprises. The method of claim 2, The fastening member 34 further comprises a washer 34b disposed between the stopper nut 34a and the roll member 32. The rolling roll for the tux head of the rolling mill. The method of claim 3, wherein On the outer circumference of the other end of the roll fastening portion 31a, a key groove 31d is provided in the axial direction. Rolling roll for tux head of the rolling mill, characterized in that the stopper (34c) is provided on the inner circumference of the washer (34b) to prevent the rotation to be caught in the key groove (31d). The method of claim 1, The hollow portion 32a of the roll member 32 is provided with a partition portion 32b protruding annularly along the center of the inner wall to partition the hollow portion 32a left and right. The bearing member is a pair of tapered roller bearings 33a and 33b installed on the right and left sides of the hollow portion 32a with the partition portion 32b as a boundary, for rolling the tux head of the rolling mill. role. The method of claim 5, On the left and right sides of the hollow portion 32a, a pair of guide rings 35a and 35b, each of which has a tapered surface, is press-fitted so that the tapered roller bearings 33a and 33b move in surface contact with each other. Rolling roll for tux head of rolling mill. The method of claim 5, Rolling roll for tux head of the rolling mill, characterized in that the partition portion (32b) is formed at regular intervals in the tool engaging groove (32c) for pulling out the guide ring (35a) (35b) through a tool.