JPH11277203A - Roll segment changing apparatus in continuous casting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly and inexpensively change a roll segment. SOLUTION: This roll segment changing apparatus has an elevating/lowering platform 7 to be driven along a casting line, and a truck 8 on the elevating/ lowering platform in a horizontally movable manner, the elevating/lowering platform 7 is provided with a fixed rail 18 to movably support the truck 8 and a movable rail 19 having an engagement hole 21 movable along the fixed rail 18, and after the truck 8 is retracted (a) by one pitch by a rail driving device 35 through the movable rail 19 in a condition where an engagement pin 24 is engaged with the engagement hole 21 by a pin driving device 25, the movable rail 19 is advanced (b) while the engagement pin 24 is detached from the engagement hole 21, and the same operation is repeated, and a roll segment 3 is pulled in onto the elevating/lowering platform 7 by the truck 8 while the roll segment 3 on the elevating/lowering platform 7 is pushed in the casting line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll segment exchanging apparatus capable of exchanging, for example, roll segments in a vertical continuous casting facility in a horizontal drawing manner.

[0002]

2. Description of the Related Art FIG. 11 shows an example of this type of vertical continuous casting equipment. This is mold 1
, A casting line A including a foot roll 2, a plurality of roll segments (including a pinch roll) 3 having a large number of guide rollers 3a, and the like is provided, and molten steel is poured into the mold 1, The slab M formed by cooling the molten steel is drawn out along the casting line A.

In the above configuration, for example, when the roll segment 3 is replaced, the wire 4 connected to the roll segment 3 is wound by a winch, and the roll segment 3 is pulled out from the casting line A in a laterally pulling manner. (See phantom lines in FIG. 11).

[0004]

In the above-mentioned conventional configuration,
Since a winch is required for each roll segment 3, the structure is complicated and the production cost is high.

[0005] Further, after the mold 1 is removed, the roll segment 3 is lifted by an overhead crane and removed from the casting line A. However, in this case, the use of the overhead crane is restricted, and replacement work is troublesome. Is troublesome.

[0006] Further, the replacement work is also performed by using the winch and the overhead crane together. However, this requires a complicated structure and a high production cost, and the replacement work is troublesome and troublesome. is there.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a roll segment exchanging apparatus in a continuous casting facility which can perform an inexpensive operation for exchanging roll segments and the like smoothly.

[0008]

In order to achieve the above object, the present invention is directed to a continuous casting facility for drawing a slab from a mold along a casting line. A possible elevator, and a carriage disposed on the elevator so as to be horizontally movable, and the carriage pulls a predetermined roll segment constituting the casting line onto the elevator, and conversely, moves up and down. It is characterized in that a roll segment on a table is pushed into the casting line.

In the above configuration, for example, when exchanging a roll segment, the elevator is raised and lowered to stop at the same height as the roll segment to be exchanged, and then the roll segment to be exchanged by the carriage is moved to the elevator. Pull up and raise or lower the platform to bring the roll segment to the off position. Next, the new roll segment may be pushed into the casting line in the reverse order.

[0010] In this case, the one lifting platform and the carriage are used to
The roll segments constituting the casting line can be exchanged, the construction is simple, the production cost can be reduced, and the exchange operation can be performed smoothly.

According to a second aspect of the present invention, in the first aspect of the present invention, a fixed rail for movably supporting the carriage and a movable rail movable along the fixed rail are provided on the elevator. A plurality of engaging holes are formed at a constant pitch in the movable rail along a longitudinal direction thereof, and a pin driving device for retracting and retracting an engaging pin that can be disengaged from each of the engaging holes is provided on the carriage. A rail driving device is provided, which is provided and reciprocates the movable rail by the pitch.

[0012] In the above configuration, after the engaging pin is engaged with the engaging hole of the movable rail by the pin driving device, the movable rail is retracted by the rail driving device.
The carriage is moved by one pitch, and then the engaging pin is disengaged from the fitting hole by the pin driving device. Then, the movable rail is advanced by the rail driving device, and thereafter, the same operation is repeated. In this way, the carriage can be reliably moved one pitch at a time.

In this case, the carriage can be reliably moved via the movable rail by the pin drive and the rail drive, and the carriage can be moved by one pitch at a time. However, a small one is sufficient, and the manufacturing cost can be reduced.

According to a third aspect of the present invention, in the second aspect of the invention, a large number of lock holes are formed at the pitch along the longitudinal direction of the fixed guide, and the fixed guide can be disengaged from the lock holes. A lock pin is movably provided on the carriage, the lock pin and the engagement pin are interlockingly connected, and the lock pin is engaged with the lock hole in conjunction with the release of the engagement pin from the engagement hole. The feature is that they are matched.

According to the above configuration, the bogie is locked to the fixed rail by engaging the lock pin with the lock hole in conjunction with releasing the engagement pin from the engagement hole. When returning the movable rail to the original position, it is possible to prevent the carriage from unexpectedly moving.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 10 shows a roll segment exchanging device 5 in a vertical continuous casting facility according to an embodiment of the present invention. And a carriage 8 arranged on the lift 7 so as to be horizontally movable.
In the configuration other than the above, the same parts as those of the conventional example shown in FIG.

As shown in FIGS. 1 and 2, four pillars 6 are provided on the inner peripheral surface of the building 10, and a pair of guide rails 11 are fixed to each pillar 6 along the longitudinal direction thereof. A stopper 12 is protruded from each of the columns 6 at predetermined intervals along the longitudinal direction.

As shown in FIG. 1 and FIG.
At the four corners, there are provided a pair of upper and lower guide rollers 13 abutting on the guide rails 11, and an extension drive device 15 including an actuator for extending and retracting a locking pin 14 which can be disengaged from the stopper 12. The elevator 7 is moved up and down along a guide rail 11 by a crane or a winch (not shown) and stopped at a predetermined position.
By engaging the locking pin 14 with the stopper 12 with the reference 5 (see the phantom line in FIG. 1), the elevator 7 can be fixed. In FIG. 1, reference numeral 16 denotes a rail provided on the upper surface of the lift 7 for moving the roll segment (including a pinch roll) 3.

As shown in FIG. 3 and FIG.
A fixed rail 18 and a movable rail 19 are provided along an imaginary line connecting the elevator 7 and the casting line A at a central portion of the base. The fixed rail 18 is fixed to the base frame 18a fixed on the lifting platform 7, a substrate 18b fixed on the base frame 18a, and parallel to the substrate 18b at a predetermined interval. A pair of substantially U-shaped rail bodies 18 having a transverse cross section
c, and a large number of lock holes 20 are formed in the both rail main bodies 18c at a constant pitch P along the longitudinal direction. Further, the movable rail 19 is provided with the both rail main bodies 1.
The plurality of engagement holes 21 are formed so as to be movable on the substrate portion 18b between 8c and along the longitudinal direction at the pitch P.

As shown in FIGS. 3 and 4, the carriage 8 includes a pair of upper and lower nipping rollers 8b and a pair of upper and lower nipping rollers 8b rotatably provided on both sides of a carriage body 8a straddling the fixed rail 18. The board portion 18b is formed by the pair of left and right holding rollers 8c.
Is configured to be movable along the fixed rail 18 by being sandwiched from above and below.

As shown in FIGS. 4 and 5, an engaging pin 24 is vertically movably inserted into a guide tube 23 projecting from a lower portion of the bogie main body 8a, and a pin formed of an actuator provided on the bogie main body 8a. A connecting block 26 fixed to a lower end of a piston rod 25a hanging down from a driving device 25 and an upper end protruding portion 24a of the engaging pin 24 are connected via a connecting rod 27, and the pin driving device 25 is driven to expand and contract. Thereby, the engagement pin 24 can be disengaged from the engagement hole 21.

As shown in FIGS. 5 and 6, a lock pin 30 is vertically movably inserted into a pair of left and right guide cylinders 29 protruding from a lower portion of the bogie main body 8a, and a central portion thereof is connected to a pivot shaft 31. One end of a pair of left and right swing levers 32 that are swingably supported by the bogie main body 8 a through the lock pins 30.
And the other end of each swing lever 32 is connected to the connecting rod 27,
The lock pin 30 is engaged with the lock hole 20 in conjunction with the release of the engagement pin 24 from the engagement hole 21, and the carriage 8 is locked to the fixed rail 18 (see FIG. 7).

As shown in FIG. 3, a rail driving device 3 comprising an actuator is provided between the lift 7 and the movable rail 19.
The movable rail 19 can be reciprocated by the pitch P by driving the rail driving device 35 to expand and contract.

According to the above configuration, the carriage 8 can be reliably moved via the movable rail 19 by the pin drive device 25 and the rail drive device 35, and the carriage 8
Are moved one pitch P at a time, so that a small rail drive device 35 is sufficient and the manufacturing cost can be reduced.

A roll connecting mechanism 37 is provided at a leading end 8d of the carriage 8 extending toward the casting line A. As shown in FIGS. 8 and 9, the leading end 8d of the carriage 8 is provided.
A pair of front and rear rotating levers 40 and 41 pivotally supported by pivot shafts 38 and 39 on the front and rear,
A connecting link 42 for connecting the first and second 0 and 41, and a connecting shaft with an operating rod 44a which is inserted through a through hole 43 penetratingly provided at the end of the front rotation lever 40 so as to be able to be inserted and withdrawn and engaged with the bracket 3b of the roll segment 3. 44. FIG.
Reference numeral 45 denotes a bolt for fixing the connection shaft 44 to the front rotation lever 40, and reference numeral 46 denotes a stopper rod protruding from the front end of the front rotation lever 40, and the operation rod 44 a abuts the stopper rod 46. By doing so, the flat portion 4 of the connection shaft 44
4b can be opposed to the bolt 45. Reference numeral 47 denotes a gripping portion projecting from the upper end of the rear rotation lever 41, and reference numeral 48 denotes a front rotation lever 40 projecting forward from the front end 8d of the carriage 8.
Are supported so as not to be rotated downward from the horizontal state.

In the above configuration, when the carriage 8 and the roll segment 3 are connected, the two rotating levers 40, 41
By holding the grip portion 47 and pushing it forward from the upright position (see the phantom line in FIG. 8), the front rotation lever 40 is rotated forward via the rear rotation lever 41 and the connection link 42. Then, the front rotation lever 40 and the bracket 3b of the roll segment 3 may be connected by the connection shaft 44 (see the solid line in FIG. 8).

The procedure for replacing the roll segment 3 will be described. The elevator 7 is raised and lowered to stop at the same height position as the roll segment 3 to be replaced (see FIG. 10), and then locked by the retracting drive device 15. The pin 14 is projected to engage with the stopper 12 (see FIG. 10), and the lift 7 is fixed to the column 6. Next, the carriage 8 located at the front end of the elevating platform 7 and the bracket 3b of the roll segment 3 are connected by a roll connecting mechanism 37 (see FIG. 3), and the engaging pin 24 is inserted into the engaging hole 21 by the pin driving device 25. In the engaged state (see FIG. 5), the movable rail 19 is retracted by a pitch P by the rail driving device 35, and the roll segment 3 is pulled into the elevator 7 by one pitch P. Subsequently, the engaging pin 24 is disengaged from the engaging hole 21 by the pin driving device 25,
In conjunction with this, the lock pin 30 is engaged with the lock hole 20 (see FIG. 7). Thereafter, the movable rail 19 is advanced b by one pitch P by the rail driving device 35 to return to the original position. Thereafter, by repeating the same operation, the carriage 8 is moved by one pitch P, and the roll segment 3 is moved.
Is pulled onto the lift 7 (see the phantom line in FIG. 10), and the lift 7 is raised or lowered to bring the roll segment 3 to the removal position. Next, new roll segment 3
May be pushed into the casting line A in the reverse order to the above.

In this case, a plurality of roll segments 3 constituting the casting line A can be exchanged by one elevating platform 7 and the carriage 8, so that the construction is simple and the production cost can be reduced, and the exchange is possible. Work can be performed smoothly.

[0029]

According to the first aspect of the present invention, the roll segments constituting the casting line can be exchanged by one elevating platform and the bogie, so that the configuration is simple and the production cost can be reduced. At the same time, the replacement work can be performed smoothly.

According to the second aspect of the present invention, the bogie can be reliably moved via the movable rail by the pin driving device and the rail driving device, and the bogie can be moved one pitch at a time. Therefore, a small-sized rail drive device is sufficient, and the manufacturing cost can be reduced.

According to the third aspect of the present invention, the bogie is locked to the fixed rail by engaging the lock pin with the lock hole in conjunction with releasing the engagement pin from the engagement hole. Therefore, when the movable rail is returned to the original position, it is possible to prevent the bogie from moving unexpectedly.

[Brief description of the drawings]

FIG. 1 is a plan view of a roll segment exchange device in a vertical continuous casting facility according to an embodiment of the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is a longitudinal sectional view of the same.

FIG. 4 is a cross-sectional view of a state where the carriage and the movable rail are connected.

FIG. 5 is a longitudinal sectional view of the same state.

FIG. 6 is a horizontal sectional view of the same state.

FIG. 7 is a longitudinal sectional view showing a state where the bogie and the fixed rail are connected.

FIG. 8 is a longitudinal sectional view of the roll coupling mechanism.

FIG. 9 is a plan view of the mechanism.

FIG. 10 is a schematic overall side view of the same.

FIG. 11 is a schematic overall side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mold 3 Roll segment 7 Elevating stand 8 Dolly 18 Fixed rail 19 Movable rail 20 Lock hole 21 Engagement hole 24 Engagement pin 25 Pin drive 30 Lock pin 35 Rail drive A Casting line M Cast piece P Pitch

Claims (3)

[Claims] 1. A continuous casting facility in which a slab is drawn from a mold along a casting line, comprising: a lifting platform capable of ascending and descending along the casting line; and a bogie arranged on the lifting platform so as to be horizontally movable. Having a predetermined roll segment constituting the casting line drawn by the carriage onto the elevator, and conversely, a roll segment on the elevator is pushed into the casting line. Segment exchange equipment in continuous casting equipment. 2. A fixed rail movably supporting the carriage and a movable rail movable along the fixed rail are provided on the elevator, and the movable rail has a constant pitch along its longitudinal direction. A plurality of engaging holes are formed in the carriage, and a pin driving device is provided on the carriage to move an engaging pin which can be disengaged from each of the engaging holes, and reciprocates the movable rail by the pitch. The roll segment changing device in the continuous casting facility according to claim 1, further comprising a rail drive device. 3. A plurality of lock holes are formed in the fixed guide at the pitch along the longitudinal direction thereof, and lock pins capable of being disengaged from the lock holes are movably provided on the carriage. The lock pin and the engagement pin are interlocked and connected, and the lock pin is engaged with the lock hole in conjunction with the release of the engagement pin from the engagement hole. Roll segment exchange equipment in continuous casting equipment.