KR100957904B1 - Apparatus for changing the straighting roll of the leveler - Google Patents

Abstract

Provided is a straightening roll replacement device for a rolled product straightener.

The present invention is a calibration roll replacement device installed on one side of the rolled product calibrator to facilitate the replacement of the calibration roll of the calibrator, the shank movement means moved up and down of the calibrator; A support portion formed with a seating means on which a shaft connected to the correction roll is seated; It includes, The seating means is formed of a plurality of seating grooves, or formed of a plurality of partitions.

According to the present invention, it is possible to accurately match the center of the coupling of the straightening roll and the center of the universal joint of the shaft during the replacement of the straightening roll of the straightener, so that the replacement of the straightening roll can be carried out accurately and quickly. It is possible to replace the straightening rolls and to replace the straightening rolls in a safe environment.

Rolled, Rolled Products, Straighteners, Straightening Rolls, Straightening Roll Replacement

Description

Apparatus for changing the straighting roll of the leveler}

1 is a schematic perspective view showing a device for replacing a straightening roll of a conventional rolled product straightener.

Figure 2 is a schematic perspective view showing one embodiment of a correction roll replacement device of the rolled product straightener according to the present invention.

Figure 3 is an exploded perspective view of one embodiment of a straightening roll replacement device of a rolled product straightener according to the present invention.

Figure 4 is a state diagram of use of one embodiment of the calibration roll replacement device of the rolled product straightener according to the present invention.

5 is a view showing an embodiment of the calibration roll replacement device of the rolled product calibrator according to the present invention installed on one side of the calibrator.

          Explanation of symbols on the main parts of the drawings

10,100: calibration roll replacement device 20,200: support part

21: seating groove 22: idle roll

23: guide protrusion 24: fixing protrusion

30,300: Shanghai East means 31: Vertical cylinder

40: left and right moving means 41: horizontal cylinder

42: fixing groove 43: guide ring

44: vertical guide bar 50: forward and backward movement means

51: carrier cart 52: connecting member

53: motor 54: gearbox

55 rail 60 guide member

61: guide groove 70,700: braces

710 ring 80,800 straightening roll

81,810: upper roll 82,820: lower roll

83,830: feed roll 84: coupling

90,900: straightening roll rotation drive 91,910: acceleration and deceleration

92,920: shaft 93,930: universal joint

The present invention relates to a device for replacing a straightening roll of a straightener for rolling products, and more particularly, a straightening roll replacement including a support unit on which a seating means is formed, and a shanghai step, a left and right moving means, and a forward and backward moving means capable of moving it in each direction. The present invention relates to a straightening roll replacement device capable of easily and quickly replacing a straightening roll of a rolled product straightener by configuring the device.

In general, a number of straighteners 700 are provided in industrial facilities such as steel mills in order to improve flatness of rolled products such as steel sheets produced by rolling and the like, that is, to flatten irregular and wavy shapes thereof. It is.

FIG. 1 is a diagram showing the structure of such a calibrator 700. In particular, FIG.

As shown, the hot straightener 700 used to correct the shape of the steel sheet or the like has a plurality of upper rolls 810 and lower rolls 820 and lower rolls 820 and lower rolls 820 located below them. Back is provided with a calibration roll 800 consisting of a backup roll (not shown) that serves to support the upper roll 810 and the lower roll 820.

In order to move the rolled product between the upper roll 810 and the lower roll 820 and to calibrate, that is, to move the rolled product after the flattening operation from the calibrator 700 to another process, the transfer roll (before and behind the calibrator 700) 830 is located.

On one side of the calibrator 700, as shown, a calibration roll rotating driver 900 for rotating the calibration roll 800 of the calibrator 700 is positioned.

The straightening roll rotating driver 900 includes an acceleration / deceleration part 910 composed of a gear and a motor, and a plurality of shafts 920 provided with universal joints 930 at both ends.

Although not shown, a coupling is provided at one end of the straightening roll 800 to be connected to the universal joint 930 formed at one end of the shaft 920. In addition, the universal joint 930 formed at the other end of the shaft 920 is connected to the rotation axis of the acceleration and deceleration portion 910.

Therefore, the rotational driving force generated by the acceleration / deceleration unit 910 is transmitted to each shaft 920 and the rotational driving force transmitted to each shaft 920 is transmitted to each of the calibration rolls 800 connected thereto so that the calibration rolls 800 rotate. Done.

The straightening rolls 800 of the hot straightener 700 of such a steel mill require replacement work due to wear or other failures, and in the case of replacement, one or several of the straightening rolls 800 may be used. Instead of replacing only 800, all of the upper and lower rolls 810 and 820 should be replaced at once.

This is because it is impossible to flatten a rolled product such as a steel sheet, which is the original purpose of the straightening roll 800, by replacing only a few straightening rolls 800. That is, if only a few of the straightening rolls 800 are replaced in the entire worn wear rolls 800, no matter how precisely the flattening work is because there is always a difference between the new and worn replacement.

The above replacement operation is to separate the universal joint 930 of the shaft 920 connected thereto from the coupling (not shown) of each of the straightening rolls 800 to separate the straightening roll 800 from the shaft 920 In this case, all the calibration rolls 800 are replaced with new ones, and the universal joint 930 of the shaft 920 is coupled to the coupling of the calibration rolls 800 connected thereto.

As shown in FIG. 1, at one side of the calibrator 700, a calibration roll replacing device including at least two vertical movement cylinders 300 including at least two vertical cylinders and a support portion 200 positioned on the shank movement means 300. 100 is located.

In order to separate or combine the coupling of the universal joint 930 and the straightening roll 800 of the shaft 920 in the above-described straightening roll replacement operation, the support part 200 is moved by the vertical cylinder, which is a moving means 300. The shaft 920 is moved to the position of the straightening roll 800 by moving up and down, and the coupling of the straightening roll 800 to be separated or combined coincides with the position of the universal joint 930 of the shaft 920. shall.

Thus, in order to separate or couple the coupling of the plurality of straightening rolls 800 at one time with the universal joint 930 of the shaft 920, the one side of the hot straightener 700 as shown in FIG. Hook the wire rope to the ring 710 formed on the top and hang the rope on the partially sag shaft 920 so that the center of the universal joint 920 of the shaft 920 coincides with the center of the coupling of the straightening roll 800. You should.

As described above, precisely matching the positions of the straightening roll 800 and the shaft 920 requires a number of skilled workers and requires a lot of time, thereby degrading worker safety and lowering productivity.

The present invention has been made to overcome the above-mentioned disadvantages, an object of the present invention is to include a support portion formed with a seating means on the top and to further include the shank movement means or front and rear movement means or left and right movement means to facilitate the replacement of the correction roll It is to be able to do it quickly.

According to an aspect of the present invention,

In the straightening roll replacement device installed on one side of the rolled product straightener to facilitate the replacement of the straightening roll of the straightener,

Shanghai moving means moved up and down of the calibrator; And

And a support portion associated with the shangdong means, and having a seating means formed thereon on which a shaft connected to the straightening roll is mounted.
The seating means is provided with a plurality of seating grooves, or provides a correction roll replacement device of the rolled product straightener, characterized in that formed by a plurality of partitions.

delete

More preferably, the seating means further comprises at least one idle roll to help seat the shaft.

More preferably, the moving means comprises at least one vertical cylinder.

More preferably, the support portion is disposed on the shankdong means, at least one end of the guide portion is formed with a guide projection, a guide member formed with a guide groove into which the guide projection is inserted at one side of the shankdong means do.

More preferably, the straightening roll replacement device further includes a left and right moving means for moving to the left and right of the straightener.

More preferably, the horizontal movement means comprises at least one horizontal cylinder.

More preferably, one side of the horizontal cylinder is installed to be fixed to the support portion and the other side is installed to be movable up and down to the guide member located on one side of the shank movement means.

More preferably, a fixing groove is formed at one side of the horizontal cylinder and at least one fixing protrusion is formed at the supporting part, so that the fixing protrusion is fitted into the fixing groove, and the other side of the horizontal cylinder is guided. A ring is formed and the guide member has a vertical guide rod is installed so that the guide ring is installed to move up and down along the vertical guide rod.

More preferably, the straightening roll replacement device further includes a front and rear movement means for moving in a direction closer to or away from the straightener.

More preferably, the guide member located on one side of the shank movement means and the shank movement means is disposed on the front and rear movement means.

More preferably, the back and forth movement means comprises a carriage vehicle which is manually or mechanically driven.

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

Figure 2 is a perspective view of one embodiment of a straightening roll replacement device of a rolled product straightener according to the present invention and Figure 3 is an exploded perspective view of one embodiment of a straightening roll replacement device of a rolled product straightener according to the present invention.

As shown in the correction roll replacement device 10 is a support portion 20 having a plurality of seating grooves 21 are formed as a seating means on the top, and vertical cylinders 31 installed on both sides of the support portion 20 below. Shanghai moving means 30 and each of which is located below the Shanghai moving means 30, including a forward and backward movement means 50 including a transport trolley, and the Shanghai movement means 30 and above the forward and backward movement means 50; Positioned together and consists of a guide member 60, the guide groove 60 is formed long and up and down, horizontal movement means 40 including a horizontal cylinder 41 is installed in the guide member 60.

The seating grooves 21 formed as a plurality of seating means on the upper portion of the support 20 is preferably formed as many as the number of straightening rolls 80 to be replaced at one time, even if more or less than the straightening rolls 80 If there is no problem in replacing), any number is possible.

In addition, the interval between each seating groove 21 is preferably the same as the interval between each calibration roll 80, but may be any interval if there is no problem in replacing the calibration roll (80).

And, in the present embodiment, the seating groove 21 is formed in the upper portion of the support portion 20 as a seating means to seat the shaft 92 connected to the straightening roll 80, if the shaft 92 is seated Any number of barrier ribs may be formed on the base 20.

As shown in FIGS. 2 and 3, both sides of the mounting groove 21, which is a seating means, are provided with idle rolls 22 so that the shaft 92 of the straightening roll rotation driving unit 90 shown in FIGS. 4 and 5 is provided. To be seated in the seating groove 21 more securely, that is, not moved.

Guide protrusions 23 are formed at both lower ends of the supporting part 20, as shown in FIGS. 2 and 3, and guide grooves 61 are formed in the guide member 60 to extend up and down. 23 is inserted into the guide groove 61 is movable up and down.

Therefore, the guide protrusion 23 of the support part 20 is the guide groove 61 of the guide member 60 when the support part 20 is moved up and down by the shank moving means 30 made of the vertical cylinder 31. Move up and down along).

Each guide member 60 is provided with a horizontal cylinder 41 constituting the left and right moving means 40. That is, a guide ring 43 is formed on one side of the horizontal cylinder 41 as shown in FIG. 2, and the guide ring 43 is inserted into the vertical guide rod 44 to be movable up and down. The vertical guide rod 44 is fixed to the guide member 60 so that the horizontal cylinder 41 is installed in the guide member 60.

In addition, fixing grooves 42 are formed at the other side of each of the horizontal cylinders 41, and fixing protrusions 24 are formed at both lower ends of the front surface of the supporting part 20, so that the fixing grooves of the respective horizontal cylinders 41 are formed. 42 is inserted into the fixing projections 24 of the base 20 to be fixed.

Therefore, the support part 20 can move left and right by the movement of each horizontal cylinder 41, and the support part 20 moves up and down by the operation of the vertical cylinder 31 which comprises the shanghai moving means 30. As shown in FIG. Since the horizontal cylinder 41 can be moved up and down along the vertical guide rod 44 even if it is moved, the left side of the supporting portion 20 is moved by the horizontal cylinder 41 separately from the up and down movement of the supporting portion 20. Right move is possible.

In addition, when the support portion 20 moves up and down, the horizontal cylinder 41 as the guide protrusion 23 of the support portion 20 is guided up and down along the guide groove 61 of the guide member 60. Even when the support part 20 moves left and right by the guide protrusion 23 of the support part 20 is guided left and right along the guide groove 61 of the guide member 60.

Below the respective vertical cylinders 31 constituting the shank movement means 30 and each guide member 60 disposed on one side thereof, the transport cart 51 constituting the front and rear movement means 50 is positioned. The transport cart 51 is connected to the connection member 52 as shown in Figs. 2 and 3 so as to move together.

In addition, as shown in FIGS. 2 and 3, one of the transport carts 51 is provided with a motor 53 and the other is provided with a gear box 54. ) Is driven.

A rail 55 is positioned below each transport cart 51 so that each transport cart 51 moves along the rail 55.

Since the straightening roll replacement device 10 is configured with the structure as described above, the support portion 20 can be moved up and down by the operation of the vertical cylinder 31 constituting the shank moving means 30, The support part 20 can be moved left and right by the operation of each horizontal cylinder 41 constituting the moving means 40, and the support part is moved by the movement of the transport cart 51 constituting the front and rear movement means 50. (20) can be moved back and forth.

Since the shank movement means 30, the left and right movement means 40 and the front and rear movement means 50 operate independently of each other, it is possible to move the support 20 to a desired position.

Figure 4 is a state diagram of the use of one embodiment of the calibration roll replacement device of the rolled product straightener according to the present invention, Figure 5 is an embodiment of a straightening roll replacement device of the rolled product straightener according to the present invention It is a figure which shows what installed in one side.

As shown, first place the calibration roll replacement device 10 under the shaft 92 of the calibration roll rotary drive 90 of the calibrator 70.

Subsequently, the shaft 92 is positioned in the seating groove 21 of the support 20 using the shank movement means 30, the left and right movement means 40, and the forward and backward movement means 50. When the shaft 92 is located in the seating groove 21 of the support portion 20, the support portion 20 as described above, the shanghai hydraulic end 30, the left and right movement means 40 and the front and rear movement means 50 And the position of the shaft 92 is easy to separate the universal joint 93 of the shaft 92 connected thereto from the coupling 84 of the straightening roll 80, that is, the center of the shaft 92. And the center of the straightening roll 80 is moved to match the position.

After the position of the shaft 92 is moved as described above, the coupling 84 of the straightening roll 80 and the universal joint 93 of the shaft 92 are separated.

When the coupling 84 of the straightening roll 80 and the universal joint 93 of the shaft 92 are separated, the straightening roll 80 can be disassembled or coupled from the straightener 70. Therefore, the straightening roll 80 used in the state in which the coupling 84 of the straightening roll 80 and the universal joint 93 of the shaft 92 are separated is dismantled from the straightening machine 70 and the new straightening roll 80 is removed. To the straightener 70 to replace the straightening roll (80).

Installing the new straightening roll 80 to the straightener 70 and connecting the shaft 92 and the straightening roll 80 again, after replacing all of the straightening roll 80 with a new shaft 92 as described above ) Is positioned in the seating groove 21 of the supporting portion 20, and then the position of the supporting portion 20 is left and right with the shank east means 30 so that the center of the straightening roll 80 and the center of the shaft 92 coincide with each other. By using the movement means 40 and the front and rear movement means 50 to connect the coupling 84 of the straightening roll 80 and the universal joint 93 of the shaft 92 to be connected thereto.

In the embodiment of the present description, the shape of the seating groove 21 as the seating means is merely an example, and any shape can be used as long as the shaft 92 can be seated. As described above, if the shaft 92 is seated in addition to the seating groove 21, any one of the barrier ribs may be formed.

In addition, the idle roll 22 of the seating groove 21 is not limited to the embodiment of the present description and may be any as long as it helps the shaft 92 to be seated in the seating groove 21.

In addition, the structure of the shanghai movement means 30, the left and right movement means 40 and the front and rear movement means 50 of the embodiment of the present invention is not limited to this embodiment, but the up and down, left, right Any structure that can be moved back and forth is possible.

In the embodiment of the present invention has a structure using both the Shanghai moving means 30, the left and right movement means 40 and the front and rear movement means 50, but is not limited to this, the receiving groove 21 is formed as a mounting means In the case where the unit 20 includes only the shanghai moving means 30, a combination of the shanghai moving means 30 and the left and right moving means 50 or the shanghai moving means 30 and the forward and backward moving means 50 is also possible.

In addition, both of the shank movement means 30, the front and rear movement means 40 and the left and right movement means 50 can be automatically driven by the driving device, some movements can be made manually and some movements can be done automatically. .

When using the straightening roll replacement device 10 according to the present invention, it is possible to automatically move the supporting portion 20, so that a large number of people are not required to replace the straightening roll 80, thereby increasing the number of spare members. The advantage is that it can be put into more important processes.

In addition, since it is possible to exactly match the center position of the universal joint 93 of the shaft 92 with the center position of the coupling 84 of the straightening roll 80, replacement or connection work of the straightening roll 80 is performed. The advantage is that it can proceed quickly and accurately.

Since the replacement work of the straightening roll 80 can be performed quickly and accurately, there is an advantage that productivity is improved by reducing replacement time.

And, there is an advantage that the worker can work in a safe environment.

Due to the above advantages there is also an advantage that the production cost is reduced.

According to the present invention as described above, the coupling portion of the correction roll when the correction roll replacement operation is provided with a moving portion and the left and right moving means and the forward and backward movement means for moving the support portion and the support portion with the seating means formed on the upper side up, down, left and right The effect is that the center and the center of the universal joint of the shaft can be exactly matched.

Therefore, it is possible to accurately and quickly replace the straightening roll and reduce the replacement time, thereby improving productivity.

In addition, since the work can be automatically carried out instead of manual work, it is possible to work with a small number of people, and there is an effect that the spare people can be put into other important work.

And because it is not a manual operation, there is an effect that the worker can work in a safe environment.

Finally, there is an effect that the cost for the replacement of the calibration roll is reduced.

Claims (12)

In the straightening roll replacement device installed on one side of the rolled product straightener to facilitate the replacement of the straightening roll of the straightener, Shanghai moving means moved up and down of the calibrator; And And a support portion associated with the shangdong means, and having a seating means formed thereon on which a shaft connected to the straightening roll is mounted. The seating means is formed with a plurality of seating grooves, or a roll correction device of the rolled product straightener, characterized in that formed by a plurality of partitions. delete 2. The apparatus of claim 1, wherein the seating means further comprises at least one idle roll to assist in seating of the shaft. 2. The apparatus of claim 1, wherein the moving means comprises at least one vertical cylinder. The guide member of claim 1, wherein the support portion is disposed on the shank movement means, a guide protrusion is formed at at least one end of the support portion, and a guide member having a guide groove into which the guide protrusion is inserted is formed at one side of the shandong movement means. Straightening roll replacement device of the rolled product straightener, characterized in that further arranged. The apparatus of claim 1, wherein the straightening roll replacement device further comprises a left and right moving means for moving from side to side of the straightener. 7. The apparatus of claim 6, wherein the horizontal movement means comprises at least one horizontal cylinder. 8. The rolled product straightener of claim 7, wherein one side of the horizontal cylinder is installed to be fixed to the support part, and the other side of the horizontal cylinder is installed to be movable up and down in a guide member positioned at one side of the shank moving means. Calibration roll changer. The method of claim 8, wherein the fixing groove is formed on one side of the horizontal cylinder and at least one fixing protrusion is formed in the support portion has a configuration in which the fixing projection is fitted in the fixing groove, The guide ring is formed on the other side of the horizontal cylinder and the guide member is provided with a vertical guide rod is provided with the guide roll is a calibration roll of the rolled product straightener, characterized in that it is configured to be moved up and down along the vertical guide rod. Replacement device. 7. The apparatus of claim 1 or 6, wherein the apparatus for replacing a straightening roll further includes back and forth moving means for moving in a direction approaching or away from the straightener. 12. The apparatus of claim 10, wherein a guide member positioned on one side of the shank moving means and the shank moving means is disposed on the back and forth moving means. 12. The apparatus of claim 10, wherein the forward and backward movement means comprises a transport trolley which is manually or mechanically driven.

Images