JPH0741387B2 - Strand carrier - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a strand conveying device, and more particularly to a strand conveying device for a continuous casting device such as a slab having a supporting segment having a plurality of rollers. Here, the plurality of support segments are fixed to a side frame that is integrated in the vertical direction, in particular, an arched side frame, and two adjacent support segments each have a transport element disposed at each end. , And is jointly provided on a conveyance support plate supported by one side frame.

(Prior Art and Problems) A bow-shaped continuous casting device having a supporting segment with a plurality of rollers is manufactured by Iron and Steel Inter
national December 1978, Vol. 51, No. 6, 373-380, AT-B-
360.690). This is a plurality of supporting segments arranged in a series of arcuate side frames or foundation frames,
The support segment, which has a specially shaped support surface, bears directly against the opposing support surface of the foundation frame.

In order to avoid the movement of the roller position between adjacent support segments, it is necessary to machine the support surface and the counter support surface particularly precisely. Therefore, due to the space between the base frames, enormous cost is required for the technology for strengthening and measuring the base frames. Moreover, the overall maintenance of such a strand transport device is very expensive when the opposing support surfaces have to be repaired in order to remove the spaced base frames from the device.

One of the strand conveying devices of the type described at the beginning devised to avoid such difficulties is a French patent.
Known to FR-PS 2,447,764. This is movably attached to the side frame to which the transport support plate of the equilibrium method is joined, and the direction change transmission device attached to the transfer support plate via the direction change crank is used between the adjacent support segments. This is an apparatus of the type that is provided to correct the movement of the roller position. This has the advantage that there is no need to be careful in accurately positioning the transport support plate on the joined side frame, but the rotation of the transport support plate fixes the arc-shaped roller paths of all the support segments. However, it is very difficult or almost impossible to prevent the movement of the roller position at the same time. That is, by making the transport support plate movable, one support segment is lowered and the next support segment placed on this transport support plate is raised. With this,
Bending occurs in the roller path.

In addition, it is structurally very expensive to attach the transfer support plate in a movable state. Especially, the part that guides the strands in an arc shape is the most difficult part in the continuous casting device due to heat, cold water, metal dust, and rust. It is very difficult to guarantee the operation of the diverting transmission after a long period of operation of the continuous casting machine. Further, there are the following drawbacks. That is, it is not possible to take into consideration the longitudinal extension of the support segments of the transport support plate, and in particular, the position of the transport support plate is not originally accurately determined, and the direction change transmission is provided without provisional roller mutual movement. It is only after a long time of driving that it is decided by the driving situation, and thus more or less by chance.

The present invention aims to avoid such drawbacks and difficulties and solves the following problems. That is, it is possible to prevent the movement of the roller position between the adjacent support segments from occurring while ensuring the reliability, and especially to avoid the deviation of the roller path from the ideal arc-shaped path. It is an object of the present invention to provide a strand conveying device of the above method. It has a supporting segment here, which guarantees that the joined side frames can be easily produced, minimizes the measurement work, and allows the supporting segment to be easily installed and removed. Become.

(Means for Solving the Problems) A strand conveying device according to the present invention includes a supporting segment having a plurality of rollers, and particularly in a strand conveying device for a continuous casting device, a plurality of supporting segments are integrated in the longitudinal direction. Fixed to the side frame, in particular an arched side frame, two adjacent support segments each having a carrier element supported on one side frame via carrier elements arranged at their respective ends. Co-deployed on the support plates, each transport support plate is fixed to the side frame by a pair of parallel, coupling bolts, and the coupling bolts on all transport support plates are approximately:
It is on the midline of the side frame, and each support segment can be fixed to the side frame by a connecting member.

(Operation) According to the present invention, the above problems are solved as follows. That is, each transport support plate is fixed to the side frame by a pair of parallel coupling bolts, all the transport support plate coupling bolts are approximately on the midline of the side frame, and each support segment is It can be fixed to the side frame by a connecting member.

The production of the side frame is particularly simple, as the holes for the connecting bolts provided in the side frame can be drilled with high precision and without a great expense in the coordinate drilling operation. Similarly, the manufacture of the carrier support plate is also very simple. When disassembling and repairing the entire device, it is not necessary to disassemble the joined side frames. On the contrary, it is sufficient to remove and dismantle the support segment and the carrier support plate.

To counter thermal expansion, each transport support plate has a recess for immovably accommodating the transport element of the support segment and, with play, the transport element of the adjacent support segment, which is formed especially as a slider. And a recess. Here, this play is
It is provided in parallel with the strand conveying device at a passing portion from one supporting segment to an adjacent supporting segment.

In order to ensure the connection of the bow-shaped strand conveying device to the adjacent conveying path part of the continuous casting device without causing the roller position to move, the supporting segment adjacent to the bow-shaped part of the strand conveying device has an arc region. Alternatively, like a support segment in the straight path region, it is preferably meshed with a carrier support plate provided at the end of the arcuate side frame.

(Example) Hereinafter, the present invention will be described in detail based on a schematic view showing an example. FIG. 1 shows a side view of a strand conveying apparatus according to the present invention, and FIGS. 2 and 3 show cross sections taken along line II-II and III-III of FIG. Has been done.

The strand conveying device 1 of the bow-shaped continuous casting apparatus is provided with bow-shaped parallel side frames 3 and 4 for accommodating a plurality of supporting segments 2, 2, ...
It is supported through 5,5, ... and the joining plates 6,6 ,. To be more precise, the lower end is directly on the bearing 5, and the upper end and the center are
It is supported via the joint joint plate 6. Each side frame 3,
The reference numeral 4 is composed of two parallel side plates 8 and 8 between which carrier support plates 9, 9 are arranged to support the support segments 2, 2. Here, the transport support plate 9 provided on the side frames 3 and 4
Are arranged in the direction in which the strands are conveyed with a distance between the support segments 2 in addition to the distance between the support segments 2 in the longitudinal direction.

Each transport support plate 9 has a median line 10 of the two side frames 3 and 4.
It is fixed to the side frames 3 and 4 via a coupling bolt 11 arranged above. In order to support the support segments 2,2, ... With the rollers 12,12, ..., each transport support plate 9 has two U-shaped recesses 13,14 arranged back and forth along the side frame. Is provided.
Here, the bolt-shaped carrier elements 15, 16 arranged on both sides of the support segment 2 are supported.

Each two adjacent supporting segments 2,2 are provided with a side frame 3 or 4
Each one is supported by one transport support plate 9. Recess 13,1
Reference numeral 4 is a notch opened toward the center of the arc of the strand conveying device, and the supporting segment 2 can be removed toward the center. Here, the transport elements 15,16 are recessed 13,14.
You can slide it off more. The side surfaces of the recesses 13 and 14 face the direction in which the respective support segments 2 are removed.
For this reason, the side surfaces of the recesses 13 and 14 of the adjacent transport support plates 9 that receive one support segment are parallel to each other,
The side surfaces of the recesses 13 and 14 of one transport support plate 9 face each other at an angle.

The U-shaped recesses 13 of each transport support plate 9 respectively support the transport elements 15 of each support segment 2 in a play-free manner.
Adjacent U-shaped recesses 14 in the same transport support plate 9 allow play 18 to allow thermal expansion of the transport elements 16 of adjacent support segments 2.
Is provided.

As is clearly shown in FIG. 1, the conveying element 16, which is shown here as a slide, is located approximately in the center of the recess 14. Therefore, the play 18 exists in both the longitudinal and longitudinal directions of the support segment 2.

In order to prevent the movement of the roller position between adjacent support segments 2 when thermal expansion takes place, the play 18, and thus the bottom of the recess 14, extends from one support segment 2 to the next adjacent support segment. It is parallel to the strand conveying device 17 at the time of passing to the segment 2.

A coupling member 20 is used to fix the support segment 2 to the side frames 3 and 4. This connecting member 20 is made of a connecting screw, but on the one hand the bolts 21 that connect the side frames 3, 4 and the side surfaces 8, 8 or the side frames 3, 4 to each other, and on the other hand to the support segment It penetrates through the forged support plate 22.

Adjacent support segments of the arcuately curved strand conveying device 1 are likewise provided with conveying elements 15, 16 in each of the curved region 23 and the linear region 24. These transport elements are provided in the recess 1 of the transport support plate 16 arranged at the ends of the side frames 3 and 4 which are curved in an arc shape.
It fits in 3,14. Here again, the conveying element 16 below the curved region 23 is in the shape of a slider and the recess 14
Then, it can move in the direction of the strand transport path 17. The recess 14 is in this case parallel to the strand transport path 17 and is open towards the solidified shell layer.

(Effects of the Invention) The above-described strand conveying device 1 makes it possible to obtain high accuracy without incurring a great expense. Here, the holes for the connecting bolts 11 are formed in the side frames 3 and 4 by the coordinate drilling work. The manufacture of the carrier support plate 9 is likewise easy.

In the case of disassembly and repair of the entire apparatus, the support segment can be removed by loosening the connecting screw 20, and the transport support plate 9 can be removed by removing the connecting bolt 11. This allows each part to be easily repaired at the workshop. The bulky side frames 3 and 4 can be left in the device and need not always be repaired.

Since the carrying support plate 9 is automatically set back to its original position by the connecting bolt 11, the costly adjustment work is minimized when reassembling the carrying support plate 9 and the supporting segment 2. Can be suppressed to

As is apparent from FIG. 1, the carrier support plate can also be outstandingly installed in the horizontal straight section of the strand carrier 1. In this case, the adjacent support segments 2 ', 2'which form the linear roller path are located on the upper part of the carrier support plate 9'on the bolt-shaped carrier elements 15', 16 'on the straight side. It is fixed to the frame 3 '. Here, the installation of the transport support plate 9'is likewise carried out on the connecting bolt 11 whose axis is located on the midline 10 'of the side frame 3'.

The invention is not limited to the embodiments shown here, but can be modified in various respects. For example, the coupling screw 20
Alternatively, a wedge-shaped coupling member may be provided, and similarly, the side frames 3 and 4 on both sides may be coupled to a frame-shaped side frame that is integrally fixed using a cross beam. .

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention. 2 and 3 show the II-II line and III-I of FIG. 1, respectively.
It is sectional drawing in the II line. 2,2 ′ …… Supporting segment, 3,4,3 ′ …… Side frame, 15,16,15 ′, 1
6 '... transport element, 9, 9' ... transport support plate, 11 ... coupling bolt, 12, 12, roller, 20 ... coupling member.

Claims (3)

[Claims] 1. A strand conveying device, in particular for a continuous casting machine, comprising a supporting segment with a plurality of rollers, in a side frame in which a plurality of supporting segments are integrated in the longitudinal direction, in particular in an arched side frame. Each of the two fixed supporting adjoining support segments is jointly arranged on a carrier support plate supported by one side frame via a carrier element arranged at each end of the carrier support plate. The plate is fixed to the side frame by a pair of parallel connecting bolts, and the connecting bolts of all transport support plates are approximately on the midline of the side frame, and each supporting segment is attached to the side frame. On the other hand, a strand conveying device characterized in that it can be fixed by a connecting member. 2. A strand conveying device according to claim 1, in which each conveying support plate is adjacent to a recess for immovably accommodating the conveying element of the supporting segment and in particular formed as a slide. A recess for accommodating the carrying element of the supporting segment with play, the play being provided at the transition from one supporting segment to the next supporting segment in parallel with the strand conveying path. Characteristic strand conveying device. 3. The strand carrier according to claim 1 or 2, wherein the supporting segment adjacent to the arcuate portion of the strand carrier is
A strand conveying device characterized by being meshed in a preferable state with a conveying support plate provided at an end of an arcuate side frame like a supporting segment in an arc region or a straight region.