JP2555908Y2 - Segment exchange equipment for continuous casting equipment - Google Patents

Description

[Detailed description of the invention] [Industrial application field] In the invention, a roll segment (hereinafter simply referred to as a segment) for guiding a slab on a strand of a continuous casting machine is used in a segment exchange device in a continuous casting facility. The present invention relates to a segment exchanging device of a type in which a strand is exchanged by taking in and out a strand bending center direction.

[Conventional technology]

Conventionally, in this type of segment exchange device, a set of two fixed left and right fixed guide rails that extend from the segment installation position in the direction of the strand curvature center and then extend vertically upward are provided for each segment installation position. Guide wheels provided on both sides of the segment are engaged with the fixed guide rail. In order to carry the segments in and out along the fixed guide rails, overhead cranes and dedicated hanging devices having a link chain structure are used. This hanging tool can be hung by an overhead crane at the rear end, and can be bent by engaging with a fixed guide rail by a guide wheel attached to the end of the link pin. Further, a hanger is attached to the upper shaft portion of the guide wheel mounting shaft portions provided on both sides of the segment so as to be able to swing back and forth, and a pair of hanger is provided on each of the left and right sides of the tip of the hanging tool. And a connecting pin that can slide through from one of the brackets to the other. Then, the hanging tool is hung by the overhead crane along the guide rail to the hanger position of the segment, and the hanger on the segment side is inserted between the brackets on the hanging tool side. To penetrate into
The tip of the hanging tool can be connected to the upper part of the segment.

[Problems to be solved by the invention]

When connecting the tip of the hanger to the top of the segment, the operator must work on the top of the segment and push in the connecting pin, especially for segments in the curved zone of continuous casting equipment. There is a pipe outside the fixed guide rail, pipe outside the machine, and pipe inside the machine above the segment in the vicinity of the connecting point of, and the scaffold is poor. And it's high. For this reason, if a large number of stairs, decks, etc. are installed for safety work, the narrow work space becomes narrower even if it is not so, making it difficult to work. That work also needs to be done on both sides of the segment. Therefore, the work involves dangers, has very poor operability, and takes time. In addition, the hanger provided at the upper part of the segment not only hinders the transportation and centering of the segment, but also inevitably causes a rise in facility costs.

[Purpose of the invention]

This invention was made to solve the above-mentioned problem,
An object of the present invention is to omit a hanger projecting above a segment and to reliably and quickly connect a tip end of a hanger to an upper portion of the segment.

[Means for solving the problem]

As shown in the drawing, the segment exchanging device of the continuous casting equipment according to the present invention has two bent right and left pieces that extend from the segment installation position toward the center of the strand curve and then extend vertically upward for each segment installation position. A pair of fixed guide rails 8 is provided, and guide wheels 6 protruding from both sides of the segment 1 are engaged with the fixed guide rails 8, and an overhead crane 11 that can travel above the fixed guide rails 8 group is provided. Can be hung on this overhead crane 11,
And guide wheels 17 attached to both ends of the link pin 16
In the segment exchanging device provided with a hanging device 12 having a link chain structure which can be bent by engaging with each fixed guide rail 8, the guide wheels 6 are attached at both ends of the segment 1 and mounted at the tip end. A shaft 5 provided, two tilt hooks 23 rotatably attached to the tip of the hanging tool 12 and engageable with the shaft, and a tilt device for tilting the tilt hooks 23 in conjunction with each other. This tilting device has a connecting shaft 19 whose both ends are rotatably supported by left and right chain links 13, and the connecting shaft 19 has the two tilting hooks 23.
Are connected to the connecting shaft 19 so as to be interlocked with each other, and the rotary operating devices 21 and 22 for rotating the connecting shaft 19 are provided on the hanging member 12, and the above-described object is achieved by such a configuration. Is what you do.

〔Example〕

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

In the figure, reference numeral 1 denotes a plurality of segments which are installed on a support base 3 provided on a structure 2 to constitute a strand 4 of a continuous casting machine.

On both sides of the segment 1, a pair of shafts 5 (one in the present embodiment) is protrudingly provided on each of the upper and lower portions, and a guide wheel 6 is rotatably attached to the tip of the shaft 5. . Further, a suspension ring 7 is rotatably mounted at an intermediate portion of the upper shaft body 5 among the guide wheel mounting shaft bodies 5.

A positioning projection is provided on a tilting hook, which will be described later, around the periphery of the suspension ring 7.

Reference numeral 8 denotes a pair of bent right and left fixed guide rails, which are provided on the structure 2 for each segment installation position, extend from the segment installation position in the direction of the strand bending center, and then extend vertically upward. The upper end of each fixed guide rail 8 is aligned with the upper part of the structure 2.

A groove 9 opening on the opposite side of the fixed guide rail 8
Are formed continuously.

The segment 1 is disposed between the left and right fixed guide rails 8, and guide wheels 6 provided on both sides of the segment 1 are engaged in the grooves of the fixed guide rail 8, and the segments 1 are moved along the fixed guide rail 8. Is movable.

An overhead crane 11 is provided so as to be able to travel above the fixed guide rails 8 group.

12 is a dedicated hanging tool with a bendable link chain structure,
A hanging beam 14 is provided across the right and left links 13 at the base end, and a hook hanging portion 15 is projected above the hanging beam 14, and is suspended by the overhead crane 11 via the hanging portion 15. It is possible. A guide wheel 17 to be engaged with the groove of the fixed guide rail 8 is rotatably attached to an end of each link pin 16. In addition, the left and right links 13 at the ends are deviated outwardly from the line connecting the link pins 16 at both ends, and the connection shaft 19 is rotatably pivoted via bearings 18. Attach the rope drum 20 to the end of the left and right links 13 and attach the rope drum 20
A worm gear mechanism 21 and a handle 22 for rotating the worm gear via a connecting shaft 19 are provided. On the other hand, the left and right links 13 at the tip
The lowermost link pin 16 pivoted to the
Two tilt hooks 23 are fixedly provided one by one. The tip of a rope 24 wound around the rope drum 20 is connected to the anti-hook side of these tilt hooks 23. The tilting hook 23 can be lifted via the rope 24 to the side bent and recessed when being moved along the fixed guide rail 8 by the overhead crane 11. In addition, the left and right links at the tip
A stopper 25 for preventing interference with the segment 1 is provided below the link pin 16 connecting the link 13.

Reference numeral 26 denotes an arc deck, which is provided so as to connect fixed guide rails 8 erected on both sides along the strand 1 on the side of the center of the strand curve of the segment 1.

In the above configuration, when the new segment 1 transported from the machine maintenance yard to the casting yard is carried into the strand 4, the work is performed in the following procedure.

The two tilting hooks 23 provided at the tip of the hanging tool 12 are engaged with the hanging rings 7 provided on both sides of the new segment 1,
After hanging the new segment 1 on the overhead crane 11 via the hanging tool 12, the overhead crane 11 traverses and travels to a position immediately above the fixed guide rail 8 provided corresponding to the installation position of the new segment 1. Transport.

When the overhead crane 11 is lowered, the guide wheel 6 of the new segment 1 is first engaged in the groove (vertical groove 10) of the fixed guide rail 8, and then the guide wheel 17 of the special hanging device 12 is engaged. And the exclusive hanging tool 12 is suspended along the fixed guide rail 8.

After the new segment 1 is mounted on the support base 3 provided on the structure 2, the hanging tool 12 is further lowered by about 200 mm.
The new segment 1 is subsequently fixed to the support base 3.

By rotating the handle 22 of the tilting device provided at the tip of the hanging tool 12 on the arc deck 26, the worm gear mechanism 21 is rotated.
Then, the tilting hook 23 is lifted by the rope 24 by rotating the rope drum 20 in the rope winding direction via the connecting shaft 19, and the two tilting hooks 23 supported by the pivot pin (link pin 16).
Is opened in the anti-casting direction side around the pivot pin and tilted to remove it from the suspension rings 7 provided on both upper sides of the new segment 1.

When the overhead crane 11 hoists, the lifting tool 12 is pulled out from the fixed guide rail 8 and transported to a predetermined temporary storage place.

When unloading the old segment 1 from the strand 4, work is performed in the following procedure.

The tilting hook 23 provided at the tip of the hanging tool 12 in the temporary storage area
After confirming that the opening is open,
The overhead crane 11 is transported to the position just above the fixed guide rail 8 provided corresponding to the installation position of the old segment 1 by traversing and traveling of the overhead crane 11.

When the overhead crane 11 is lowered, the guide wheel 17 of the hanging tool 12 is engaged in the groove (vertical groove 10) of the fixed guide rail 8, and the hanging tool 12 is suspended along the fixed guide rail 8 to a predetermined position. .

In the arc deck 26, the handle 22 of the tilting device provided at the tip of the hanging tool 12 is rotated in the opposite direction to that described above, and the rope drum 20 is rotated in the rope rewinding direction to rotate the rope 24.
And the two tilting hooks 23 are closed and tilted toward the casting direction side about the pivot pin (link pin 16) by their own weight to engage with the suspension rings 7 provided on both upper sides of the old segment 1. .

After confirming that the tilting hook 23 is engaged with the suspension ring 7,
When the overhead crane 11 is hoisted, the old segment 1 and
Is lifted along the fixed guide rail 8 and pulled out from the fixed guide rail 8, and then the old segment 1 is transported to the machine maintenance yard by traversing and traveling of the overhead crane 11, and then the lifting tool 12 is transported to a predetermined temporary storage place.

In the above embodiment, the suspension ring is loosely fitted to the shaft body 5 protruding from the segment, and is guided by the positioning projection provided on the peripheral portion thereof when engaged to easily position the tilting hook. However, if it is sufficient that the positioning is performed manually by other external force, the suspension ring may be engaged with a projection ring without projection, or the suspension ring may be omitted and directly engaged with the shaft body.

[Effect of the invention]

As described above, according to the present invention, the two tilting hooks provided at the tip of the hanging tool are engaged with the shafts or the hanging rings provided on both sides of the segment, so that the connection between the hanging tool and the segment is easy and quick. And can be operated by one operator. Therefore, the work efficiency can be improved and the danger of working at a high place can be reduced.

In addition, by interlocking the left and right hooks, the hanging tool can be quickly connected to the segment, and the left and right hooks can be interlocked and rotated by a simple and inexpensive device.

[Brief description of the drawings]

1 and 2 are a front view and a side view showing an embodiment of the present invention before a segment is loaded, and FIGS. 3 and 4 are front views and side views of a hanging tool after the segment is loaded. Figure, fifth
FIG. 6 and FIG. 6 are an enlarged front view and a side view, respectively, of the main parts of FIG. 3 and FIG. DESCRIPTION OF SYMBOLS 1 ... Segment, 2 ... Structure, 3 ... Support base, 4 ... Strand, 5 ... Shaft, 6 ... Guide wheel, 7 ... Suspension ring, 8 ... Fixed guide rail, 9 ... Groove,
11 ... overhead crane, 12 ... hanging equipment, 13 ... link, 14 ...
... suspension beam, 16 ... link pin, 17 ... guide wheel, 18
…… Bearing, 19 …… Connection shaft, 20 …… Rope drum, 21 ……
Worm gear mechanism, 22 ... handle, 23 ... tilting hook, 24 ... rope, 25 ... stopper, 26 ... arc deck.

Claims (1)

(57) [Scope of request for utility model registration] 1. A set of two fixed left and right fixed guide rails extending from the segment installation position toward the center of the strand curve and then extending vertically upward at each segment installation position. An overhead crane capable of engaging guide wheels provided on both sides of the segment and traveling above the fixed guide rail group, and guides which can be suspended by the overhead crane and provided at both ends of link pins In a segment exchanging device provided with a link chain structure suspending tool that can be bent by engaging with each fixed guide rail by a wheel, a shaft protruding from both sides of the segment and having a guide wheel attached to a distal end portion. Body, two tilting hooks rotatably attached to the tip of the hanging tool and engageable with the shaft, and tilting for tilting the tilting hooks in conjunction with each other This tilting device has a connecting shaft whose both ends are rotatably supported by left and right chain links, and connects the tilting hooks to the connecting shaft so as to be able to interlock with the connecting shaft, and A segment exchanging device for a continuous casting facility, wherein a rotation operating device for rotating the connection shaft is provided on a hanging tool.