JPH04197564A - Device for exchanging segment in continuous casting equipment - Google Patents

Abstract

PURPOSE:To use a segment exchanging device even in the case machine curvature is different between mutually faced strands by supporting upper and lower end parts of carriage rails as shiftable to a strand direction and supporting the intermediate part of the rails as liftable to almost rail curvature radius direction. CONSTITUTION:By advancing/retreating the rail intermediate parts C, D in between the descending limit position and the ascending limit position at the same time with the rail lifting devices 8, 9, an intermediate part rail constituting body 32 is shifted while supporting both ends with the rail lifting devices 8, 9. An upper part rail constituting body 31 is supported as connecting with the intermediate part rail constituting body 32 at the lower end thereof and shifted while supporting the upper end part E thereof to the strand direction with a rail guide 10. Further, the lower part rail constituting body 33 is supported as connecting with the intermediate rail constituting body 32 at the left end thereof and supported to the strand direction at below the lower end part with a rail guide 11. Therefore, the curvature of rail 3 is changed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for changing guide roll segments (hereinafter simply referred to as segments) in continuous casting equipment having two or more opposing strands.

[Conventional technology]

Generally, there are two types of segment replacement methods for continuous casting equipment: a method in which the segments are replaced horizontally in and out of the strand, and a method in which the segments are replaced in and out in the direction of the strand's curved center.

Conventionally, in continuous casting equipment having two facing strands, a segment changing device that adopts the former horizontal loading/unloading method has been equipped with a segment moving device that can move forward and backward toward one or the other strand between the facing strands. The segment exchange cart is provided so as to be movable up and down along the strand, and a cart drive device using a winch is provided to move the segment exchange cart up and down along the rail.
A segment exchange device is known in which segments incorporated in opposing strands can be exchanged by holding two segment exchange carts (Utility Model Publication No. 61-1).
(See Publication No. 0840).

[Problems to be Solved by the Invention] Since the segment exchange device is shared between the two strands, there is an advantage that the strand interval can be minimized. However, since the trolley rail is fixed between the opposing strands, It required that the strands both have the same or nearly the same machine curvature; it could not be used if the strands had different machine curvatures.

In recent years, continuous casting equipment with two strands has been equipped with two strands to accommodate faster casting operations and small loft production.
The machine curvature may vary between two strands, but
In such cases as well, it is desirable to share the segment exchange device.

[Object of the Invention] This invention was made to solve the above-mentioned problems, and an object of the invention is to enable a segment exchange device to be shared even if the machine curvatures of opposing strands are significantly different.

[Means to solve the problem]

The segment exchange device for continuous casting equipment according to the present invention includes:
As shown in the drawing, the machine has opposing strands IA and IB with different curvatures, and one segment exchange cart 16 is installed between the strands IA and 18.
In a continuous casting facility equipped with a trolley rail 3 for raising and lowering along the line B, a plurality of rail structures 31.3□
, 33 are connected to each other in a bendable manner to form the bogie rail 3.
The upper and lower ends E and F of the rail 3 are supported by the rail guide 10.11 provided on the structure 2 so as to be movable in the strand direction, and the intermediate parts C and D of the rail are The connecting points of the rail components 30, 32, 33 provided on the structure 2 are supported by a rail lifting device 8.9 that can be realized approximately in the direction of the radius of curvature of the rail 3, and the segment exchange cart 16 has a segment loading device. Stand 19
The present invention is characterized in that a height changing means is provided, and this configuration achieves the above object.

(Example〕 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, IA and IB are opposed strands having different machine curvatures of continuous casting equipment, and are formed on the structure 2 with the machine reference line and the height of the output side of the pinch rolls being the same, respectively.

Reference numeral 3 denotes a truck rail, which is provided between the strands IA and 18 along the strand IA or IB, and is composed of three rail structures 3□, 3□, and 33.

Upper rail structure 3. and intermediate rail structure 3□ are connected to each other by pin 4 so as to be able to bend through brackets 5I, 5z, and intermediate rail structure 3□ and lower rail structure 33 are connected to brackets 7□, 73 by pin 6. They are bendably connected to each other via.

In this way, the rail 3 can be bent at the intermediate portions C and D around the connection point (pin 4.6) of the rail structure.

8.9 are mutually parallel rail lifting devices provided on the structure 2, and the tip of the rail lifting device 8 is connected to the upper rail structure 3. The tip of the rail lifting device 9 is connected to the connection point (pin 4) between the intermediate rail structure 3□ and the lower rail structure 33 (pin 6). connected.

In this way, the rail intermediate portions C and D are connected to the rail lifting device 8.
9, the strand I on the side with greater machine curvature
It is possible to move back and forth approximately in the radial direction of the rail curvature between the lower limit position corresponding to the relevant position of A and the upper limit position corresponding to the relevant position of the strand 1"IB on the side where the machine curvature is smaller.

10.11 is a rail guide provided in the structure 2, and a guide groove 12 along the strand direction (vertical direction) is formed in the upper rail guide 10, and in this guide groove 12,
A guide roller 13 provided on the side of the upper end of the upper rail structure 3 is engaged (see FIG. 5). Further, a guide groove 14 along the strand direction (horizontal direction) is formed in the lower rail guide 11, and a guide roller 15 provided on the side of the lower end of the lower rail structure 33 engages with this guide groove 14. (See Figure 5).

In this way, the rail 3 is supported by the upper rail guide 10 via the guide roller 13 at the upper end portion E, and is movable in the strand direction (vertical direction), and is supported by the lower rail guide 10 via the guide roller 15 at the lower end portion F. It is supported by a guide 11 and is movable in the strand direction (horizontal direction).

Reference numeral 16 denotes one segment exchange trolley.The trolley frame 17 is formed in a cross-shaped shape when viewed from the side so that the segment S can be mounted even in a tilted state.
Four sets of wheels 18 are provided at intervals in the direction of carriage movement. Further, a segment mounting table 19 and a segment transfer device 20 are provided on the upper part of the truck frame 17.

The reason why the four sets of wheels 18 are provided at intervals in the direction of movement of the segment exchange truck 16 is that when the rail intermediate portions C and D are placed at the upper limit position, the upper rail structure 31 and the intermediate portion rail Since a gap t is created between the structure 3□ and between the intermediate rail structure 3□ and the lower rail structure 33, when one set of wheels passes through this gap, the remaining three sets This is to enable wheels (actually two sets because the rails are curved) to support the segment exchange cart 16 and move on the rail 3 without coming off the wheels.

The segment mounting table 19 has two support stands 21 arranged at intervals in the cart running direction, and is supported on the top of the cart frame 17 via a height adjustment device 22 (a screw jack in the embodiment). The heights of the segment mounting surfaces of the segment mounting table 19 can be adjusted independently of each other by the respective height adjustment devices 22.

The segment transfer device 20 is for transferring the segment S between the segment mounting table 19 and the strand IA or IB, and includes a moving bar 23, and the moving bar 23 is moved to one side or the other side of the strand IA or IB. The moving cylinder 24 is configured to reciprocate by a certain stroke.

A plurality of retaining grooves 25 are provided in the moving bar 23 at intervals in the longitudinal direction of the bar. On the other hand, an engaging pawl 26 is provided at the lower part of the segment S so as to be movable up and down, and is biased downward by a spring or the like. When the moving bar 23 is moved forward, the engaging claw 26 hits the tip of the moving bar 23 and is pushed up, sliding on the upper surface of the moving bar and forming the first retaining groove 25.
When the moving bar 23 is moved back in this state, the engagement pawl 26 is caught on one end of the engagement groove 25 and the segment S is carried out. When the moving bar 23 is moved forward again, the segment S is unengaged. The mating pawl 26 hits one end of the engagement groove 25, is pushed up, is automatically removed, and slides on the upper surface of the moving bar of the next engagement groove 25. By repeating the segment unloading operation by the moving bar 23 for the number of engagement grooves, the strand IA (
or IB) onto the segment mounting table 19.
can be removed intermittently. In addition, when carrying out the segment S, the engaging claw 26 is rotated so that the direction of the engaging claw 26 is adjusted appropriately so that the segment S on the opposite side of the segment S to be carried out is not carried out, and contrary to the above, the segment S can be carried in. It can be changed by 180°.

The reason why such a second drive method was adopted is that the movable cylinder 24 with a small stroke can be used, and even if the height of the segment mounting surface of the segment mounting table 19 is slightly adjusted, it will not be affected by the adjustment. This is because the engagement claw 26 can be engaged with the engagement groove 25.

In this embodiment, the rail 3 is connected to the rail structure 31.3.
Although an example has been described in which the area is divided into three parts, □ and 33, the number of divisions is not limited at all.

Also, the upper and lower ends of the rail 3 are connected to the rail guide 10.
．． Although an example has been described in which guide rollers 13 and 15 are used as means for supporting the rails 11, a sliding block into which a shaft protruding from the rail 3 is fitted so as to be relatively rotatable may also be used.

In the above configuration, when the rail intermediate parts C and D are simultaneously moved back and forth between the lower limit position and the upper limit position by the rail lifting device 8.9, the intermediate rail structure 3□ moves to the rail lifting device 8.9. It moves while being supported at both ends. The upper rail structure 31 has its lower end connected and supported by the intermediate rail structure 3□, and moves while its upper end E is supported by the rail guide 10 in the strand direction. Moreover, the lower rail structure 3. The left end is connected and supported by the intermediate rail structure 3□, and the lower part F is supported by the rail guide 11 in the strand direction while moving. Therefore, rail 3
It becomes possible to change the curvature of.

When carrying out the segment S onto the segment mounting table 19 from a predetermined position on the strand F' IA having a large machine curvature, and conversely carrying it in from the segment mounting table 19 to a predetermined position on the strand IA, first, the rail lifting device 8. After holding the rail intermediate portions C and D at the lower limit position shown by the imaginary line using 9 and aligning the rail 3 along the strand IA, the segment exchange trolley I6 is pulled by the winch of the trolley drive device.
The segment transfer device 20 is moved up and down along the rail 3 and stopped at the position of the segment to be replaced by the stopper.
It becomes possible to carry in and out the segment S.

Moreover, when carrying out the segment S onto the segment mounting table 19 from the predetermined position 1 of the strand IB with a small machine curvature, and conversely carrying it in from the segment mounting table 19 to the predetermined position of the strand IB, first, the rail lifting device 8. After raising the rail intermediate parts C and D by 9 and holding them at the upper limit position shown by the solid line to align the rail 3 with the strand IB,
The segment exchange cart 16 is raised and lowered along the rail 3 while being pulled by a winch of a cart driving device. Unlike the above, only a gap is created in the rail 3 that opens in the radial direction of the rail curvature due to the rise of the rail intermediate parts C and D, but the wheels 18 of the segment exchange trolley 16 pass through this gap without coming off. Therefore, the segment exchange cart 16 can be moved up and down reliably. After the segment exchange cart 16 is raised and lowered, it is stopped at the position of the segment to be exchanged using a stopper.

Next, the segment mounting table 1 is adjusted by the height adjustment device 22.
If the level of the segment mounting surface 9 is adjusted to the lower surface level of the segment S installed in the strand IB machine, the segment S can be carried in and out by the segment transfer device 20. In addition, the above level adjustment is performed using the fixed support stand 21 in addition to the height adjustment device 22 (screw jack).
A liner of a predetermined thickness may be fixed on top with bolts.

[Effects of the Invention] As described above, the present invention configures a bogie rail by connecting a plurality of rail structures to each other in a bendable manner, and moves the upper and lower ends of this rail in the strand direction via a rail guide. Since the intermediate part of the rail (the connecting point of the rail structure) was supported so that it could be raised and lowered almost in the direction of the radius of rail curvature via the rail lifting device, the machine curvature was significantly different between opposing strands. Also, by changing the position of the middle part of the rail by the rail lifting device, it becomes possible to match the machine curvature of each strand, and the segment exchange device can be shared.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line P in FIG. 1 showing a segment exchange cart,
3 and 4 are a plan view and a side view showing details of the segment exchange cart, and FIG. 5 is a plan view taken along the line Q in FIG. 1. IA, IB...Strand, 2...Structure, 3...Bolly rail, 38.3□
, 33...Rail structure, 4.6...
Hint, 53.5□, 7□, 73...Bracket, 8.
9...Rail lifting device, C, D...Rail intermediate part, E...Rail upper end, F...Rail lower end, 10.11. ...Rail Guide, 12.14...
...Guide groove, 13.15...Guide roller, 16...
・Segment exchange cart, 17...Dolly frame, 18...Wheels, 19...Segment mounting table, 20...Segment transfer device, 21... ...
・Support stand, 22... Height adjustment device, 23...
...Movement cylinder λ-124...Movement cylinder, 2
5...Engagement groove, 26...Engagement claw, S.
·····segment.

Claims (1)

[Claims] (1) In a continuous casting facility that has opposing strands with different machine curvatures and is provided with a truck rail between the strands for raising and lowering one segment exchange truck along the strands, a plurality of rail configurations are used. the bodies are connected to each other so as to be bendable to constitute the bogie rail, the upper and lower ends of the rail are supported movably in the strand direction by rail guides provided on the structure, and the middle part of the rail is supported by a rail lifting device which is provided on the structure and is capable of raising and lowering the connecting point of the rail structure approximately in the radial direction of the rail curvature, and the segment exchange cart is provided with means for changing the height of the segment mounting table. Features: Segment exchange device for continuous casting equipment.