JP2000301219A - Off-line device for mounting and demounting chock for rolling mill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an off-line chock mounting/demounting device for rolling mills with which the efficiency of work is improved and roll chock changing is executed in a shot time and moreover which is also excellent in safety. SOLUTION: This device has a placing table 11 and receiving tables 31, 32 which are provided on the placing table 11 and respectively vertically movable. And the device has chock mounting/demounting trucks 21, 22 which are paired up and the interval between which is changeable, traverse rails 12 which are in the intermediate position between the chock mounting/demounteng trucks 21, 22 which are paired up and arranged so as to be movable in the orthogonal direction to the axial direction of the chock mounting/demounting trucks 21, 22 which are paired up, two roll support trucks 13 or the like which are travelable on 1st and 2nd rails which are outside the traverse rails 12 and the placing table 11 and connected to both sides of the traverse rails 12 and roll supporting parts 40, 41 which are disposed on the roll support trucks 13 or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an off-line chock attaching / detaching apparatus for a rolling mill for exchanging rolling rolls for shaping steel or the like and for exchanging chock attached thereto.

[0002]

2. Description of the Related Art Conventionally, when a roll of a rolling mill is worn,
Alternatively, when the size of the steel material to be rolled changes, the roll chock (hereinafter sometimes simply referred to as “chock”) is changed between the exchange rolls. If you want to replace the rolling rolls in the rolling line,
Or, if you want to change the chock, see FIG.
As shown in FIG. 8, the relevant rolling roll 60 is detached from the rolling line, and is mounted on the movable carriage 61 by a crane or the like. The mounted rolling roll 60 is moved by the moving cart 61
After being transported to the roll shop yard in the adjacent building, it is moved again by a crane or the like onto the chock attaching / detaching device arranged in the roll shop yard. The chocks 65 and 66 mounted on the rolling roll 60 or on both sides of the rolling roll 60 are exchanged by using the chock attaching / detaching device. When the crane capacity of the roll shop yard is small and it is impossible to suspend the roll roll 60 and the assembled products of the chocks 65 and 66 at the roll shop yard at the same time, the chock attaching / detaching device, that is, the rolling roll 60 is mounted on the movable carriage 61. A roll support 62 is provided, and choke detachable carts 63 and 64 are disposed on both sides of the roll support 62 and can adjust the distance between the roll supports 60 in the axial direction. Without
Roll rolls or chocks are exchanged from the roll chocks incorporated into the roll shop yard. In addition, 67 is a traveling rail of the movable carriage 61.

[0003]

However, in the above-mentioned conventional off-line chock attaching / detaching apparatus for a rolling mill,
After the chocks 65 and 66 are extracted in the roll shop yard, the rolling roll 60 (that is, the final pressure roll) is moved to the movable carriage 6.
Since the work of dispensing from 1 and the work of placing a new roll on the roll support are mainly performed using a crane, there is a problem that it is extremely troublesome and time-consuming. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an off-line chock attachment / detachment apparatus for a rolling mill, in which the work efficiency is improved, the roll chock can be rearranged in a relatively short time, and the safety is excellent. And

[0004]

According to the present invention, there is provided an off-line chock attachment / detachment apparatus for a rolling mill according to the present invention, which comprises a mounting table, and a receiving table provided on the mounting table and capable of moving up and down. A pair of chock detachable carts that can be changed, and a traverse located at an intermediate position between the pair of chock detachable carts and movably arranged in a direction orthogonal to the axial direction of the pair of chock detachable carts. A rail, two traversing rails, and two roll support trolleys that are able to travel on first and second fixed rails that are outside the mounting table and are connected to both sides of the traverse rails. And a roll supporting portion provided. As a result, it is possible to mount the final pressure roll transported from the rolling line on one roll support cart and mount a new roll to be replaced with another roll support cart. Since these two roll support carts can travel on the traversing rails and fixed rails that can be connected to the traversing carts, the discharging of the final pressure rolls from the mounting table and the loading of the new rolls into the mounting table require the crane. Easy to use without using.

[0005] In the off-line chock attaching / detaching apparatus for a rolling mill according to the present invention, the roll supporting portion can be movable in the roll axis direction. Further, in the off-line chock attaching / detaching apparatus for a rolling mill according to the present invention, it is further preferable that the mounting table is a traveling carriage capable of reciprocating between a rolling yard and a roll shop yard, whereby the rolling roll collected in the rolling yard is provided. Can be easily transported to the roll shop yard, so that the chocks can be detached from the roll shop yard regardless of the crane capacity. Further, in the off-line chock attaching / detaching apparatus for a rolling mill according to the present invention, a groove is formed in a direction orthogonal to a moving direction of the chock attaching / detaching carriage above the mounting table, and the traversing rail is disposed at a bottom of the groove. The roll support trolley travels on the traversing rail, and the roll supporter moves on the roll support trolley in the roll axis direction, and furthermore, on the roll support trolley and on the mounting table. It is preferable that the chock attaching / detaching carriage can reciprocate between the two. Thereby, the exchange of the roll chocks of the rolling rolls of a plurality of shapes can be performed by one chock detachable cart. Furthermore, in the off-line chock attaching / detaching apparatus for a rolling mill according to the present invention, the pair of chock attaching / detaching carts are arranged in a plurality of rows on the mounting table, and the roll support portions are also provided on each of the roll support carts. It is also possible to arrange, and thereby, conveyance and rearrangement of a plurality of rolling rolls can be simultaneously performed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a front view of an off-line chock attaching / detaching device of a rolling mill according to a first embodiment of the present invention, FIGS. 2 and 3 are plan views thereof, and FIG. 4 is a schematic plan view of a rolling yard and a roll shop yard. FIG. 5, FIG. 5 and FIG. 6 are front views of an off-line chock attaching / detaching apparatus for a rolling mill according to a second embodiment of the present invention.

As shown in FIGS. 1 to 3, an off-line chock attaching / detaching apparatus 10 for a rolling mill according to a first embodiment of the present invention includes a traveling vehicle 11 as an example of a mounting table, and a traveling vehicle 11. A traverse rail 12 provided thereon, and a roll support trolley 13, 1, which can run on the traverse rail 12.
And 4. Hereinafter, these will be described in detail.

As shown in FIG. 4, the traveling carriage 11 moves on a traveling rail 18 disposed between a rolling yard 16 in which a rolling line 15 is disposed and a roll shop yard 17 in an adjacent building. ing. In the upper center of the traveling vehicle 11, a transverse rail 1 orthogonal to the traveling direction of the traveling vehicle 11 is provided.
2 are provided, and roll support carts 13 and 14 are provided thereon.
Can be rampant. Longitudinal guides (or rails) 19, 20 orthogonal to the traverse rail 12 are provided on both sides with the traverse rail 12 as a center, and the chock detachable carts 21, 22 can run on them.
The interval between the pair of chock detachable carts 21 and 22 can be changed according to the shape of the rolling roll 23.

On the other hand, in the roll shop yard 17, a fixed base 24,
A first and second fixed rails 26 and 27 are provided on the fixed bases 24 and 25 so as to be connected to both sides of the traversing rail 12 of the traveling vehicle 11. As shown in FIG. 2, a roll support cart 13 that conveys a rolling roll (final pressure roll) 23 is disposed on the traversing rail 12 of the traveling cart 11, but also on the first fixed rail 26. Another roll support cart 14 is arranged. After removing the chocks 28 and 29 from the final pressure roll 23, as shown in FIG. 3, the roll support trolley 13 is paid out to the side (downward in FIG. 3) and the roll support trolley 14 becomes a traveling trolley. 11, a new roll 30 (rolling roll to be replaced) mounted on the roll support trolley 14 is mounted on the traveling trolley 11,
8, 29 are attached.

Therefore, in the off-line chock attaching / detaching device 10 of the rolling mill, the rolling roll 23 mounted from the rolling yard 16 is transported to the roll shop yard 17 by the traveling carriage 11, but the traveling carriage 11 is
A sensor such as a limit switch is detected and stopped so that the position 2 just coincides with the first and second fixed rails 26 and 27. At this position, the chocks 28 and 29 of the rolling rolls 23 are removed by opening the choke attaching and detaching carts 21 and 22, and then the roll support cart 13 on which the rolling rolls 23 are mounted is discharged to the fixed base 25 side.
In this state, the roll support trolley 14 on which the new roll 30 is mounted enters the traveling trolley 11 from the other side, and stops with the chock detachable trolleys 21 and 22 aligned with their axes. In this state, the chock detachable carts 21 and 22 move to the center side, and the chock 28 and 29 are mounted on the new roll 30. If the vertical axes of the new roll 30 and the chocks 28, 29 do not match, adjustment is performed by lifting and lowering the pedestals 31, 32 of the chock detachable carts 21, 22 (when removing the chocks 28, 29). The same).

The traveling trolley 11 to which the new roll 30 is fixed via the roll support trolley 14 moves toward the rolling yard 16. When the roll support carts 13 and 14 and the chock detachable carts 21 and 22 are not used, a lock device for fixing to the traveling cart 11 is provided. In addition, the roll support parts 40 and 41 provided on the roll support carts 13 and 14 are
May be integral with the roll, or may be movable in the roll axis direction. Further, the traveling vehicle described as an example of the mounting table in the first embodiment is not necessarily required to travel, and may be a fixed mounting table disposed on the floor.

Next, an off-line chock attaching / detaching apparatus 3 for a rolling mill according to a second embodiment of the present invention shown in FIGS.
5, the same components as those in the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted. In the off-line chock attaching / detaching device 35 of this rolling mill, a groove 37 perpendicular to the traveling direction of the traveling cart 36, that is, the moving direction of the chock attaching / detaching carts 21, 22 is provided at the upper center of the traveling cart 36, which is an example of a mounting table. Are provided at the bottom of the groove 37, and a traversing rail 38 communicating with the first and second fixed rails 26 and 27 is provided. And, on this, two roll support carts 13,
14 is running. Each roll support cart 1
Roll support portions 40 and 41 are mounted on the rolls 3 and 14, respectively. The roll supports 40, 41 are usually fixed at predetermined positions on the roll support carts 13, 14, but depending on the shape of the rolling rolls 42, 43, FIGS.
As shown in (1), the distance between the roll support carts 13 and 14 is changed by moving in the roll axis direction. When the total length of the rolling rolls is short (rolling roll 43), the interval between the roll supporting portions 40 and 41 is short, but the chock attaching / detaching carts 21 and 22 are also shifted inward, so that the roll supporting carts 13 and
14. As a result, it is possible to change the roll chocks of various types of rolling rolls with one traveling vehicle.

In the above-described embodiment, only one rolling roll can be mounted on the traveling vehicle. However, a plurality of rows (for example, two examples) of chock detachable vehicles are arranged on the traveling vehicle.
It is also possible to arrange a plurality of roll supports on each roll support cart so that a plurality of rolling rolls can be exchanged at the same time.

[0014]

According to the off-line chock attachment / detachment device for a rolling mill according to the first to fifth aspects, as is apparent from the above description, two roll support carts are provided and these are reciprocated to the side of the mounting table. Because it is possible, new rolls can be prepared in advance, and final pressure rolls can be cleaned after the fact. Further, since no crane is used, the waiting time for transporting the final pressure roll and the new roll is reduced, and the roll replacement work can be shortened. Furthermore, loading, unloading, and maintenance of the rolling rolls can be performed at a location away from the chock attaching / detaching cart, thereby preventing occurrence of an accident due to device malfunction or the like, and improving safety. In particular, in the off-line chock attaching / detaching device for a rolling mill according to the third aspect, since the mounting table is a traveling vehicle, transport of the rolling rolls between the rolling yard and the roll shop yard is extremely easy. Further, the chocks can be attached and detached at the roll shop yard regardless of the capacity of the crane at the roll shop yard.
Furthermore, since the number of crane transfer operations at the roll shop is reduced as compared with the case where the mounting table is fixed, the occupation time of the crane is also reduced, and the work efficiency can be improved. In the off-line chock attaching / detaching apparatus for a rolling mill according to the fourth aspect, since a plurality of rolling rolls can be attached / detached with one apparatus, the cost can be reduced, and the installation place can be reduced. Effective use of the site is possible. In the off-line chock attaching / detaching apparatus for a rolling mill according to the fifth aspect, the chock attaching / detaching of a plurality of rolling rolls can be performed at once. Thereby, the roll exchange operation can be further shortened.

[Brief description of the drawings]

FIG. 1 is a front view of an off-line chock attaching / detaching device of a rolling mill according to a first embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a schematic plan view of a rolling yard and a roll shop yard.

FIG. 5 is a front view of an off-line chock attaching / detaching device of a rolling mill according to a second embodiment of the present invention.

FIG. 6 is a front view of an off-line chock attaching / detaching device of a rolling mill according to a second embodiment of the present invention.

FIG. 7 is a front view of an off-line chock attaching / detaching device of a rolling mill according to a conventional example.

FIG. 8 is a plan view of the same.

[Explanation of symbols]

10: Off-line chock attaching / detaching device for rolling mill, 11: traveling trolley, 12: traversing rail, 13, 14: roll support trolley, 15: rolling line, 16: rolling yard, 17:
Roll shop yard, 18: running rail, 19, 2
0: vertical guide, 21, 22: chock detachable trolley, 2
3: rolling roll, 24, 25: fixed base, 26: first
Fixed rail, 27: second fixed rail, 28, 29:
Chock, 30: New roll, 31, 32: Cradle, 3
5: Off-line chock attachment / detachment device for rolling mill, 36: traveling cart, 37: groove, 38: traversing rail, 40, 41: roll support, 42, 43: rolling roll

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomonori Kamioka 46-46 Nakahara, Toba-ku, Kitakyushu-shi, Fukuoka Prefecture Inside Nippon Steel Plant Design Co., Ltd. (72) Yoshikazu Kitayama 46-46, Nakahara, Tobata-ku, Kitakyushu, Fukuoka 59 Nippon Steel Corporation Engineering Division

Claims (5)

[Claims] 1. A mounting table, and a pair of mounting and dismounting trolleys, each of which has a receiving table provided on the mounting table and capable of moving up and down, the distance between which is variable, and an intermediate between the pair of mounting and dismounting trolleys. And a traversing rail disposed in a direction orthogonal to the axial direction of the paired chock detachable trolleys, and the traversing rail, and both sides of the traversing rail outside of the mounting table and connected to both sides of the traversing rail. An off-line chock attachment / detachment device for a rolling mill, comprising: two roll support carts capable of traveling on first and second fixed rails; and a roll support portion disposed on the roll support carts. 2. An off-line chock attaching / detaching apparatus for a rolling mill according to claim 1, wherein said roll supporting portion is movable in a roll axis direction. 3. The off-line chock attaching / detaching apparatus for a rolling mill according to claim 1, wherein the mounting table is a traveling carriage that can reciprocate between a rolling yard and a roll shop yard. Chock attachment / detachment device. 4. The off-line chock attaching / detaching apparatus for a rolling mill according to claim 1, wherein a groove is formed above the mounting table in a direction orthogonal to a moving direction of the chock attaching / detaching carriage. The traversing rail is disposed at the bottom of the groove, the roll support trolley travels on the traversing rail, and the roll support moves on the roll support trolley in the roll axis direction, and An off-line chock attaching / detaching device for a rolling mill, wherein the chock attaching / detaching cart is reciprocally movable between a roll support cart and a table. 5. The off-line chock attaching / detaching apparatus for a rolling mill according to claim 1, wherein the pair of chock attaching / detaching carts are arranged in a plurality of rows on the mounting table, and the roll support section is provided. Also, a plurality of off-line chock attaching / detaching devices for a rolling mill, wherein a plurality of the devices are arranged on each of the roll support carts.