WO2018119549A1 - Dual-roller continuous casting device - Google Patents

Abstract

Disclosed is a dual-roller continuous casting device. The device comprises a first fixing device (20) for pressing a casting roller trolley (10) in a horizontal direction at a right angle with the axes of casting rollers (1a, 1b), so as to fix the casting roller trolley in the horizontal direction at a right angle with the axes of the casting rollers, and a second fixing device (40) for pressing the casting roller trolley in the axial direction of the casting rollers, so as to fix the casting roller trolley in the axial direction of the casting rollers. The casting device can easily replace a pair of casting rollers, and can fixedly support the pair of casting rollers in the correct position.

Description

Double roll continuous casting device Technical field

The present invention provides a two-roll continuous casting apparatus.

Background technique

In the twin-roll continuous casting apparatus, when the casting rolls are deteriorated due to abrasion or the like caused by the casting operation, when the belt is changed in the bandwidth, the casting rolls may need to be replaced during maintenance or inspection of the parts.

Since the replacement of the casting rolls is accompanied by the stoppage of the casting work, the work time for replacing the casting rolls is shortened, and the production performance is becoming an important issue.

For example, Patent Document 1 listed below discloses a metal strip continuous casting apparatus including a pair of casting rolls and a pair of casting rolls attached thereto, from a standby position below one side of the casting position to an intermediate position below the casting position. A roller box that is movable horizontally in the longitudinal direction of the roller, and a lifter that lifts the roller box from the intermediate position to the casting position.

Prior technical literature

Patent literature

Patent Document 1: Japanese Patent No. 4238819

Patent Document 2: Japanese National Fair 5-9185

Summary of the invention

Problem to be solved by the invention

However, when the position of the casting rolls is deviated, the molten steel is leaked or the quality of the ribbon is lowered. Therefore, in the twin-roll continuous casting apparatus, it is required to firmly support the casting rolls at the correct positions.

Patent Document 1 describes a case where an indexing device that accurately positions a frame on which a casting roll is attached is described. However, the specific configuration of the indexing device is not described, and it is considered that even in the art. The technician is also unable to securely support the casting rolls in the correct position.

Patent Document 2 describes a case where a pair of positioning pins and a pin hole provided on a lower surface of the frame are fitted, but a change in the distance between the positioning pins corresponding to the temperature of the surrounding environment is required or Since it is used for the fitting gap of the pin or the like, there is a problem in that it is necessary to enlarge the hole diameter of the pin hole for the positioning pin, and it is difficult to firmly support the casting roller at the correct position.

In view of the above, the present invention has been made to solve the problems described above, and an object of the invention is to provide a pair of casting rolls that can be easily replaced and that a pair of casting rolls can be firmly fixed at a correct position. Supported two-roll continuous casting device.

Method for solving the problem

A twin-roll continuous casting apparatus according to the present invention for solving the above-described problems includes a pair of casting rolls having a cooling function and rotating in a mutual direction, and a pair of casting rolls mounted thereon so as to be able to travel on the guide rails a trolley provided in a manner of extending from a casting position to a casting roll changing position, wherein the two-roll continuous casting device is characterized by: a first fixing device at the casting position, The axle of the casting roll presses the trolley in a horizontal direction at right angles to fix the trolley in a horizontal direction at right angles to the axis of the casting roller; a second fixing device in which Casting position At a position, the trolley is pressed in the axial direction of the casting roller to fix the trolley in the axial direction of the casting roller.

Effect of the invention

According to the present invention, since the pair of casting rolls can be moved from the casting position to the casting roll changing position while being mounted on the carriage, the pair of casting rolls can be easily replaced. Since the trolley can be fixed in the horizontal direction of the right angle and the axial direction of the casting roll with respect to the axis of the casting roll at the casting position, the pair of casting rolls can be firmly supported at the correct position. By the first fixing device and the second fixing device, even if a dimensional change of the trolley due to a temperature change occurs during the work, the trolley can be firmly fixed without a gap.

DRAWINGS

Fig. 1 is a plan view of a twin roll continuous casting apparatus according to a first embodiment of the present invention.

Figure 2 is a side view of the two-roll continuous casting apparatus.

Figure 3 is a view of the arrow III-III in Figure 2.

Fig. 4 is a plan view showing an enlarged casting position in the twin-roll continuous casting apparatus.

Fig. 5 is a side elevational view showing the casting position enlarged in the twin roll continuous casting apparatus.

Fig. 6 is a plan view showing an enlarged casting position in the twin-roll continuous casting apparatus according to the second embodiment of the present invention.

Fig. 7 is a side elevational view showing the casting position enlarged in the twin roll continuous casting apparatus.

Fig. 8 is an enlarged view of a line VIII in Fig. 7.

Fig. 9 is a front elevational view showing a casting position in the twin roll continuous casting apparatus.

detailed description

Hereinafter, a specific embodiment of the twin roll continuous casting apparatus according to the present invention will be described. However, the present invention is not limited to the following embodiments described with reference to the drawings.

[First Embodiment]

A twin-roll continuous casting apparatus according to a first embodiment of the present invention will be described with reference to Figs. 1 to 5 .

Further, Fig. 1 shows a state before the casting roller carriage is fixed by the first (casting roll axis right angle horizontal direction) fixing means and the second (casting roll axial direction) fixing means at the casting position. Fig. 4 shows a state in which the casting roller carriage is fixed by the first fixing means and the second fixing means at the casting position. Fig. 5 shows a state in which the casting roller carriage is fixed by the second fixing means at the casting position.

In the twin-roll continuous casting apparatus 100 according to the present embodiment, as shown in FIGS. 1 to 5, the pair of left and right guide rails 103 extending in the spanning from the casting position P1 to the casting roll replacing position P3, A pair of left and right casting rolls 1a and 1b are mounted on the casting roll table 10 provided in the manner of 104. In the twin-roll continuous casting apparatus 100, the casting position P1, the intermediate position P2, the casting roll replacement position P3, and the carriage moving device retraction position P4 are adjacent to each other in the order described. The pair of right and left guide rails 103 and 104 are respectively the first rail main bodies 103A and 104A and the second rail main bodies 103B and 104B corresponding to the casting position P1, the intermediate position P2, the casting roll replacing position P3, and the bogie moving device retracting position P4. The three rail main bodies 103C and 104C and the fourth rail main bodies 103D and 104D are configured.

A casting apparatus frame 102 is provided outside the first rail main bodies 103A and 104A of the guide rails 103 and 104 in the left-right direction (width direction). The casting apparatus frame 102 includes a first frame main body 102a disposed on the outer right side of the first rail main body 103A of the guide rail 103, and a first one disposed in the guide rail 104 The second frame body 102b on the left side of the rail main body 104A. At the casting roll changing position P3, a casting roll carriage replacing device 50, which will be described later in detail, is provided. Further, the pair of right and left guide rails 103, 104, the casting device frame 102, and the casting roller carriage changing device 50 are provided on the frame 101.

The foundry roller bogie 10 includes a pallet main body 11 and four wheels 13a, 13B, 14a, and 14b. The wheel 13a is disposed on the side of the front end portion 11a at the right end portion 11c of the bogie body 11, and the wheel 13b is disposed on the side of the rear end portion 11b at the right end portion 11c of the bogie body 11. The wheel 14a is disposed on the side of the front end portion 11a at the left end portion 11d of the bogie body 11, and the wheel 14b is disposed on the side of the rear end portion 11b at the left end portion 11d of the bogie body 11. That is, the wheels 13a and 13b are provided on the carriage main body 11 so as to be able to travel on the guide rail 103, and the wheels 14a and 14b are provided on the carriage main body 11 so as to be able to travel on the guide rails 104.

The pair of right and left casting rolls 1a and 1b mounted on the casting roll carriage are supported by the bearing blocks 2aa, 2ab, 2ba, and 2bb so as to be rotatable. The bearing housings 2aa, 2ba are supported by the support member 3a. The bearing housings 2ab, 2bb are supported by the support 3b. The support members 3a, 3b are provided on the carriage body 11 of the casting roller carriage 10. These devices are disposed so as to extend in the front-rear direction of the bogie body 11 in the axial direction of the casting rolls 1a and 1b, and are disposed symmetrically in the front-rear direction and the left-right direction at the bogie body 11.

Inside the casting rolls 1a and 1b, a cooling water passage (not shown) through which the cooling water flows is provided. On the end side of the casting roll 1a, rotary joints 4aa, 4ab are provided, respectively. The rotary joints 4aa and 4ab are connected to one end side of the hoses 5a and 5b. The other end side of the hoses 5a and 5b is connected to a cooling water passage (not shown) provided in the bogie body 11. On the end side of the casting roll 1b, rotary joints 4ba, 4bb are provided, respectively. Similarly to the rotary joints 4aa and 4ab, the rotary joints 4ba and 4bb are connected to the cooling water passage provided in the carriage main body 11 via a hose (not shown).

When the casting roller cart 10 is placed at the casting position P1, the cooling water passage in the carriage main body 11 is connected to the cooling water pipe 107 via the cooling water connector 106 which will be described later in detail. The base end side of the cooling water pipe 107 is connected to the cooling water for discharging the cooling water to the discharge source or the like, and passes through the cooling water pipe 107, the cooling water connector 106, the cooling water passage in the carriage main body 11, The hoses 5a and 5b, the rotary joints 4aa, 4ab, 4ba, and 4bb perform the supply and discharge of the cooling water to the cooling water passages in the casting rolls 1a and 1b. Thereby, the casting rolls 1a, 1b are cooled. Further, the cooling water pipe 107 is supported by a support 111 provided on the frame 101.

In the center of the rear end portion 11b of the bogie body 11 in the left-right direction, a recess 11ba having a concave shape toward the tip end portion 11a side is formed. The recessed portion 11ba is provided with a second stopper receiving member 18 that comes into contact with the distal end portion 47a of the second (casting roller axial) stopper 47 which will be described later in detail. A connecting member that is in contact with the distal end portion 44a of the connecting member 44 of the second (casting roller axial direction) fixing device 40, which will be described later in detail, is provided at the center in the left-right direction of the distal end portion 11a side of the bogie main body 11. Withstand component 17. In the center in the left-right direction on the side of the front end portion 11a of the middle portion of the upper surface of the upper portion of the upper surface of the bogie main body 11, a claw portion 11e which can be locked with a hook 84 of a bogie moving device 80 which will be described later in detail is provided. Further, the bogie body 11 is provided with a through hole 11f penetrating the upper surface portion and the lower surface portion in the center in the left-right direction and the center in the front-rear direction.

At the casting position P1, the drive shafts 105a, 105b are supported on the frame 101 by the support members 112. Drive shaft couplings 104a, 104b are provided at the tips of the drive shafts 105a, 105b. When the casting roller cart 10 is placed at the casting position P1, the pair of right and left casting rolls 1a, 1b are coupled to the drive shafts 105a, 105b via the drive shaft couplings 104a, 104b. The casting rolls 1a and 1b are relatively rotated by the drive shafts 105a and 105b.

The twin-roll continuous casting apparatus 100 is provided with a casting roller carriage 10 fixed at a casting position P1 at a right angle to the axis of the casting rolls 1a and 1b (hereinafter, referred to as a horizontal direction of the casting roll axis). The first (the casting roller is oriented at right angles to the horizontal direction) fixture 20. The first fixing device 20 includes a first pressing device main body 20A and a second pressing device main body 20B which are provided on the first frame main body 102a of the casting device frame 102. The first pressing device main body 20A and the second pressing device main body 20B are each provided with a hydraulic cylinder 21 .

The hydraulic cylinder 21 of the first pressing device main body 20A is disposed in such a manner that when the piston rod 21a is advanced and retracted in the horizontal direction of the casting roller shaft by the supply and discharge of the working oil (working fluid) in the hydraulic cylinder 21, the table When the vehicle body 11 is placed at the casting position P1, the piston rod 21a presses against the bearing housings 2aa and 2ba in the horizontal direction of the casting roller shaft in the horizontal direction.

The first pressing device main body 20A includes a hydraulic oil supply and discharge device 30 that performs supply and discharge of hydraulic oil in the opposed hydraulic cylinder 21. The hydraulic oil supply and discharge device 30 is provided with a hydraulic oil supply and discharge passage 31, a solenoid valve 32, and a safety valve 34. The base end side and the tip end side of the hydraulic cylinder 21 of the first pressing device main body 20A are respectively connected to one end side of the first and second passages 31a and 31b of the hydraulic oil supply and exhaust passage 31. A solenoid valve 32 is provided on the other end side of the first and second passages 31a and 31b. The solenoid valve 32 is connected to a hydraulic oil supply source (not shown). The forward and backward movement of the piston rod 21a is switched by alternately applying the supply and discharge of the hydraulic oil to the hydraulic cylinder 21 by the electromagnetic valve 32. Further, one end side of the third passage 31c of the hydraulic oil supply and discharge passage 31 is connected to the first passage 31a. On the third passage 31c, a safety valve 34 is provided.

The hydraulic cylinder 21 of the second pressing device main body 20B is disposed in such a manner that the piston rod 21a advances and retreats in the horizontal direction of the casting roller shaft in a horizontal direction by the supply and discharge of the working oil (working fluid) into the hydraulic cylinder 21, and When the carriage main body 11 is placed at the casting position P1, the piston rod 21a presses a portion opposed to the bearing housings 2ab and 2bb in the horizontal direction of the casting roller shaft in the horizontal direction. The second pressing device main body 20B includes the same hydraulic oil supply and discharge device as the first pressing device main body 20A.

Therefore, the pressing force F1A of the piston rod 21a of the first pressing device main body 20A and the pressing force F1B of the piston rod 21a of the second pressing device main body 20B are respectively adjusted to a predetermined size. When the pressing force is excessive, the hydraulic oil is discharged through the relief valve 34, and the truck body 11 is pressed at an appropriate size (predetermined size). When suppressing excessive pressure of the working oil, other means such as an accumulator may be employed.

The side protrusions 15a, 15b, 16a, and 16b which protrude to the side outer side are respectively provided in the right side end part 11c and the left side end part 11d of the trolley main body 11. The side protruding portions 15a, 15b, 16a, 16b are, for example, the same material as the casting roll carriage 10, and are preferably made of steel. When the casting roller cart 10 is placed at the casting position P1, the side protruding portions 15a and 16a are disposed at a position facing the piston rod 21a of the first pressing device main body 20A in the horizontal direction of the casting roller shaft in the horizontal direction. When the casting roller cart 10 is placed at the casting position P1, the side protruding portions 15b and 16b are disposed at a position facing the piston rod 21a of the second pressing device main body 20B in the horizontal direction of the casting roller shaft in the horizontal direction. Thereby, the amount of advance and retreat of the piston rod 21a of the first pressing device main body 20A and the amount of advance and retreat of the piston rod 21a of the second pressing device main body 20B can be reduced.

Further, spacers (first stoppers) 121a and 121b are provided on the second frame main body 102b. The spacer 121a is disposed to face the side protruding portion 16a. The spacer 121b is disposed to face the side protruding portion 16b. Thereby, when the casting roller cart 10 is pressed by the piston rod 21a of the first pressing device main body 20A and the piston rod 21a of the second pressing device main body 20B, the casting roller bogie 10 can be more accurately arranged. Casting position P1.

The twin-roll continuous casting apparatus 100 includes a second fixing device 40 that fixes the casting roller carriage 10 at the casting position P1 and in the axial direction of the casting rolls. The second fixing device 40 is provided with a hydraulic cylinder 41, a connecting member 44, and a second stopper 47. The connecting member 44 is fixed to the frame 101 via the bracket 43 via the bracket 46, and is fixed to the distal end portion of the piston rod 41a of the hydraulic cylinder 41 via the shaft 42. Hydraulic The cylinder 41 is fixed to the frame 101 by a bracket 45. The hydraulic cylinder 41 is connected to a hydraulic oil supply and discharge device (not shown), and the hydraulic oil supply and discharge device performs the supply and discharge of the hydraulic oil (working fluid) into the hydraulic cylinder 41, so that the distal end portion of the piston rod 41a is Advance and retreat in the up and down direction. The second fixing device 40 includes a hydraulic oil supply and discharge device similar to the first pressing device main body 20A. The distal end portion of the piston rod 41a extends upward by the shaft body 43, whereby the connecting member 44 rotates with the shaft body 43 as an origin, and the distal end portion 44a provided on the connecting member 44 moves the trolley at the casting position P1. The connecting member receiving member 17 of the front end portion 11a of the main body 44 is pressed in the axial direction of the casting roll. When the connecting member 44 rotates, the piston rod 41a and the connecting member 44 are disposed such that the distal end portion 44a is in contact with the connecting member receiving member 17 of the distal end portion 11a of the bogie main body 11.

The second stopper 47 is disposed on the frame 101. The second stopper 47 is disposed in such a manner that the tip end portion 47a and the recessed portion 11ba provided on the carriage main body 11 are disposed when the casting roller bogie 10 is disposed at the casting position P1 and is pressed by the connecting member 44. The second stopper receiving member 18 is in contact. Thereby, by pressing the carriage main body 11 by the connecting member 44, the casting roller bogie 10 is fixed at the casting position P1 and in the axial direction of the casting rolls by the connecting member 44 and the second stopper 47.

Further, the pressing force F2 of the connecting member 44 of the piston rod 41a of the second fixing device 40 is adjusted to a predetermined size. When the pressing force is excessive, the working oil is discharged through the safety valve of the hydraulic oil supply and discharge device provided in the second fixing device 40, and the truck body 11 is pressed with an appropriate size (predetermined size). .

The casting roll cart changing device 50 includes a support base 52 having carriage mounting portions 52a and 52b on which two casting roller carriages can be mounted in parallel. The support table 52 is provided to be movable along the guide rails 51a, 51b on the table 51 at the frame 101C provided at the casting roll changing position P3. The stage 51 is formed in a shape extending in a horizontal direction with respect to the extending direction of the guide rails 103, 104. On the lower portion of the support base 52, wheels 53a, 53b, 53c that travel on the guide rails 51a, 51b are provided, respectively. The proximal end side of the side effector actuator 54 is fixed to the upper protruding member 57 fixed to the end of the stage 51 via the bracket 56. The distal end portion of the shaft body 54a that is advanced and retracted by the side effector actuator 54 is fixed to the support base 52 via the bracket 55. In other words, the support base 52 of the casting roller carriage replacing device 50 is movable in the direction A2, and the one of the trolley mounting portions 52a is positioned at the casting roller carriage replacement position P3B, and the one of the trolley mounting portions 52a and The position where the casting roller carriage 10 is moved between the casting position P1 via the intermediate position P2 and the other trolley mounting portion 52b are positioned at the casting roller carriage replacement position P3B on the other carriage mounting portion 52b The position where the casting roller carriage 10 is moved between the casting position P1 and the casting position P2 is moved. When the other bogie mounting portion 52b is positioned at the casting roller bogie replacement position P3B, one of the bogie loading portions 52a is positioned at the new casting roller bogie mounting position P3A. When one of the trolley mounting portions 52a is positioned at the casting roller carriage replacement position P3B, the other trolley mounting portion 52b is positioned at the casting roller trolley retracting position P3C. In other words, in the casting roll changing position P3, the new casting roll bogie mounting position P3A, the casting roll bogie replacement position P3B, and the casting roll bogie retracting position P3C are adjacent to each other in the order described.

Further, the table 51, the guide rails 51a and 51b, the wheels 53a, 53b, and 53c, the upper projecting member 57, the bracket 56, the shifter actuating actuator 54, the shaft body 54a, and the bracket 55 constitute a support table moving device.

The trolley moving device 80 has a trolley moving device main body 81, four wheels 82a, 82b, 83a, 83b, and a hook 84. The four wheels 82a, 82b, 83a, 83b are provided on the carriage moving device main body 81 so as to be able to travel on the guide rails 103, 104. The hook 84 is provided on the bogie moving device main body 81 and has a shape that can be engaged with the claw portion 11e of the casting roller bogie 10. Further, the wheels 82a, 82b, 83a, and 83b of the trolley moving device 80 are rotationally driven by a driving device (not shown) such as a motor.

The trolley moving device 80 can span the intermediate position P2, the casting roller changing position P3, and the trolley moving device The rails 103 and 104 are moved while avoiding the position P4. Therefore, when the claw portion 11e of the casting roller carriage 10 is locked by the hook 84 of the carriage moving device 80, the casting roller carriage 10 can be moved in the direction A1, and at the casting position P1, the intermediate position P2, the casting roller Move at the replacement position P3.

Here, the procedure for replacing the casting rolls in the above-described twin roll continuous casting apparatus 100 will be described below. Further, in the casting roller carriage replacing device 50, the support base 52 is disposed at the casting roller carriage replacement position P3B adjacent to the casting position P1 via the intermediate position P2 at the other carriage mounting portion 52b. A casting roller (new casting roller) 10C1 is mounted on the trolley mounting portion 52a, and new casting rolls 1a and 1b are mounted on the casting roller (new casting roller) 10C1.

First, the fixing of the casting roller carriage 10 by the first fixing device 20 is released, and the fixing of the casting roller carriage 10 by the second fixing device 40 is released. The hydraulic oil of the hydraulic cylinder 21 is supplied to the hydraulic cylinder 21 and the second pressing device main body 20B by the first pressing device main body 20A, and the piston rods 21a and 21a of the respective device main bodies 20A and 20B are contracted. Thereby, the fixing of the casting roller carriage 10 in the horizontal direction of the casting roller shaft in the right angle direction is released. Further, the hydraulic oil of the hydraulic cylinder 41 of the second fixing device 40 is fed and discharged, whereby the piston rod 41a is contracted, and the connecting member 44 is rotated. Thereby, the fixing of the casting roller carriage 10 in the axial direction of the casting roll is released.

Then, the casting roller cart (replacement target casting roller bogie) 10 on which the casting rolls 1a and 1b to be replaced are mounted is moved from the casting position P1 to the casting roll replacing position P3 by the carriage moving device 80. Thereby, the replacement target casting roller bogie 10 is disposed on the other bogie mounting portion 52b of the support base 52 of the casting roller bogie replacement device 50. At this time, the connection of the drive shafts 105a and 105b, the cooling water pipe 107, and the like is automatically released.

Then, the new casting roll carriage 10C1 mounted on one of the trolley mounting portions 52a moves on the support base 52 so as to be placed at the casting roller carriage replacement position P3B. In other words, the guide rails 103C1 and 104C1 on one of the support stages 52a of the support base 52 are linear with the second rail main bodies 103B and 104B at the intermediate position P2 and the fourth rail main bodies 103D and 104D of the moving device retracted position P4. The way is to move on the support table 52. At this time, the replacement casting roller cart 10 mounted on the other bogie mounting portion 52b of the support base 52 is positioned at the casting roller bogie retracting position P3C.

Next, the new casting roll truck 10C1 is moved from the casting roll carriage changing position P3B to the casting position P1 by the trolley moving device 80. At this time, the drive shafts 105a and 105b, the cooling water pipe 107, and the like are automatically coupled. The new casting roll carriage 10C1 is fixed by the first fixing device 20 in the horizontal direction of the casting roll right angle, and the new casting roll table 10C1 is fixed by the second fixing device 40 in the axial direction of the casting roll. Thereby, the new casting roll carriage 10C1 is more accurately placed on the casting position P1.

In this way, it is possible to easily replace the replacement casting roller and the new casting roller.

Therefore, according to the present embodiment, the twin-roll continuous casting apparatus 100 includes a pair of casting rolls 1a and 1b having a cooling function and rotating in the mutual direction, and a pair of casting rolls 1a and 1b and driving on the guide rail. The casting roller carriage 10 on the 103, 104, and the guide rails 103, 104 extend from the casting position P1 to the casting roller replacement position P3, so that the casting roller carriage 10 on which the pair of casting rolls 1a, 1b are mounted can be in the casting position P1 The movement is performed between the casting roll changing position P3, and the pair of casting rolls 1a, 1b can be easily replaced. The first fixing device 20 for fixing the casting roller carriage 10 in the horizontal direction of the casting roller shaft in a horizontal direction by having the casting roller carriage 10 pressed at the casting position P1 and in the horizontal direction of the casting roller shaft in a horizontal direction, And a second fixing device 40 that presses the casting roller carriage 10 in the axial direction of the casting roller to fix the casting roller carriage 10 in the axial direction of the casting roller, thereby enabling horizontal direction of the casting roller shaft and the casting roller The casting roll carriage 10 is fixed in the axial direction, so that the pair of casting rolls 1a, 1b can be firmly supported at the correct position. By the first fixing device 10 and the second fixing device 40, even if the size change of the casting roll carriage 10 occurs due to a temperature change during the operation, The casting roll carriage 10 can be firmly fixed without a gap.

The first pressing device main body 20A and the second pressing device main body 20B and the second fixing device 40 provided in the first fixing device 20 respectively have pistons of the hydraulic cylinders 21, 21, 41 that advance and retreat by the supply and discharge of the hydraulic oil. The rods 21a, 21a, 41a, the hydraulic oil supply and discharge passages 31, 31, 31 for supplying the hydraulic oil to the hydraulic cylinders 21, 21, 41, and the pair of working oil supply and discharge passages 31, 31, 31 are disposed. The relief valves 34, 34, and 34 that suppress the large pressure can cause the thrust of a predetermined magnitude to be imparted to the casting roller carriage 10 even if the size of the apparatus changes due to a temperature change, so that it is disposed correctly at the casting position P1. The location. That is, the pair of casting rolls 1a and 1b can be firmly supported at the correct position.

The piston rod 21a of the first pressing device main body 20A is disposed so as to face the bearing housings 2aa and 2ba in the width direction of the casting roller carriage 10 (the horizontal direction of the casting roller shaft in the horizontal direction), and the piston of the second pressing device main body 20B The rod 21a is disposed so as to face the bearing housings 2ab and 2bb in the width direction of the casting roller carriage 10 (the horizontal direction of the casting roller axis in the horizontal direction), so that the reduction in the positioning accuracy of the casting rolls 1a and 1b can be suppressed.

By having the side protrusions 15a, 15b, 16a, 16b provided on the side end portions 11C, 11d of the casting roll carriage 10, the side protrusions 15a, 16a are in contact with the piston rod 21a of the first pressing device body 20A. The opposing manner is disposed, and the side protruding portions 15b and 16b are disposed to face the piston rod 21a of the second pressing device main body 20B, thereby being able to be compared with the case where the side protruding portions are not present. The amount of advance and retreat of the piston rod is reduced.

Further, a casting roller trolley replacing device 50 for replacing the casting roller carriage with another casting roller carriage is provided, and the casting roller trolley replacing device 50 has the support base 52 and the side shifter operation actuator 54 The vehicle changing device 50 itself has a relatively simple structure, and it is easy to replace the casting rolls 1a and 1b. The support table 52 has the bogie mounting portions 52a and 52b in which two casting roll bogies can be mounted in parallel, and the side shifter operates. The position at which the casting roller carriage 10 moves between one of the carriage mounting portions 52a of the support base 52 and the casting position P1, and the other carriage mounting portion 52b and the casting position of the support base 52. At a position where the casting roller carriage 10 is moved between P1, the support table 52 is moved.

[Second Embodiment]

A twin-roll continuous casting apparatus according to a second embodiment of the present invention will be described with reference to Figs. 6 to 9 .

This embodiment is a structure in which a third (up-and-down direction) fixing device is added to the twin-roll continuous casting apparatus of the first embodiment shown in Fig. 1 . The other configurations are substantially the same as those of the above-described devices shown in FIGS. 1 to 5, and the same reference numerals are given to the same devices, and the overlapping description will be appropriately omitted.

Further, Fig. 6 shows a state in which the casting roller carriage is fixed by the first fixing device and the second fixing device at the casting position. Fig. 7 shows a state in which the casting roller carriage is fixed by the second fixing means at the casting position.

As shown in FIGS. 6 to 9 , the twin-roll continuous casting apparatus 100A according to the present embodiment further includes a third fixing device 60 . The third fixing device 60 includes a first pressing device main body 60A and a second pressing device main body 60B.

The first pressing device main body 60A includes a hydraulic cylinder 61 that is fixed to the first frame main body 102a by a bracket 62. The hydraulic cylinder 61 of the first pressing device main body 60A is disposed such that the piston rod 61a is vertically moved forward and backward. The second pressing device main body 60B includes a hydraulic cylinder 61 that is fixed to the second frame main body 102b by the bracket 62. The hydraulic cylinder 61 of the second pressing device main body 60B is disposed such that the piston rod 61a is vertically moved forward and backward. Each of the first pressing device main body 60A and the second pressing device main body 60B includes a hydraulic oil supply and discharge device similar to the first pressing device main body 20A.

Therefore, the pressing force F3A of the piston rod 61a of the first pressing device main body 60A and the second pressing device The pressing force F3B of the piston rod 61a of the main body 60B is adjusted to a predetermined size, respectively. When the pressing force is excessive, the hydraulic oil (working fluid) is discharged through the safety valve of the hydraulic oil supply and discharge device provided in each of the first and second pressing device bodies 60A and 60B, and is appropriately sized ( The predetermined size) is pressed against the main body 11 of the vehicle.

Further, the hydraulic cylinders 61 of the first pressing device main body 60A are disposed adjacent to the side protruding portions 15a and 15b, respectively. The hydraulic cylinder 61 of the second pressing device main body 60B is disposed adjacent to the side protruding portions 16a and 16b, respectively.

The twin-roll continuous casting apparatus 100A has a casting roller carriage 10A, and the casting roller carriage 10A is adjacent to the wheels 13B and 14b. On the casting roller carriage 10A, the side end portions 11c and 11d of the carriage main body 11 are respectively provided with Wheels 13c, 14c. That is, the foundry roller cart 10A has six wheels 13a, 13b, 13b, 14a, 14b, and 14c.

The first rail main body 103A of the guide rail 103 is provided with recesses 103Aa, 103Ab, and 103Ac corresponding to the respective wheels 13a, 13b, and 13c. A recess (not shown) is provided on the first rail main body 104A of the guide rail 104 corresponding to each of the wheels 14a, 14b, and 14c. Thus, when the casting roller cart 10A is placed at the casting position P1, as will be described later, the spacers 19aa, 19ab, and 19ba on the side of the carriage main body 11 are pushed up to the cushion 109aa on the side of the frame 101, 109ab, 109ba. Further, the spacer 19bb provided on the side of the bogie body 11 is placed on a pad (not shown) on the side of the frame 101. Thereby, the contact of the wheels 13a, 13b, 13c with the guide rail 103A is avoided, and the contact of the wheels 14a, 14b, 14c with the guide rail 104A is avoided.

On the lower surface portion of the carriage main body 11 and the frame 101, spacers 19aa and 19ab and spacers 109aa and 109ab are provided corresponding to the lower side of the piston rod 61a of the hydraulic cylinder 61 of the first pressing device main body 60A, respectively.

On the lower surface portion of the carriage main body 11, spacers 19ba and 19bb are provided corresponding to the lower side of the piston rod 61a of the hydraulic cylinder 61 of the second pressing device main body 60B, respectively. Further, on the frame 101, a spacer 109ba and a spacer (not shown) are provided corresponding to the pads 19ba and 19bb.

Therefore, the double-roll continuous casting apparatus 100A according to the present embodiment achieves the same operational effects as the above-described twin-roll continuous casting apparatus 100, and is provided with the third fixing device 60 at the casting position P1. The casting roll cart 10A can be correctly disposed even in the up and down direction. Thereby, the casting rolls 1a and 1b can be firmly supported at a more accurate position.

The first and second pressing device bodies 60A and 60B provided in the third fixing device 60 are supplied to the hydraulic cylinders 61 and 61 by the piston rods 61A and 61a having the hydraulic cylinders 61 and 61 that advance and retreat by the supply and exhaust of the hydraulic oil. The working oil supply passages 31, 31 of the working oil, and the safety valves 34, 34 provided on the working oil supply and exhaust passages 31, 31 to suppress excessive pressure, thereby changing the size of the apparatus even due to temperature changes It is also possible to impart a predetermined magnitude of thrust to the casting roll carriage 10A so as to be placed at the correct position at the casting position P1. That is, the pair of casting rolls 1a and 1b can be firmly supported at the correct position.

Further, by supporting the casting roller cart 10A at the casting position P1 by the spacers respectively provided on the casting roll cart 10A and the frame 101, the casting roller can be more accurately aligned in the up and down direction. 10A is configured.

Further, the first rail main body 103A of the guide rail 103 has recesses 103Aa, 103Ab, 103Ac provided at the casting position P1 corresponding to the wheels 13a, 13B, 13c of the casting roller bogie 10A, and the first rail main body 104A of the guide rail 104 is casting At the position P1, the recessed portion provided corresponding to the wheels 14a, 14b, and 14c of the casting roller bogie 10A is provided, whereby the casting roller bogie 10A can be further accurately arranged in the vertical direction.

The piston rods 61A, 61a of the first and second pressing device bodies 60A, 60B pass through to the respective bearing housings By providing the first and second pressing device bodies 60A and 60B so as to press the outer sides in the width direction of the 2aa, 2ba, 2ab, and 2bb, it is possible to suppress the upper and lower sides of the casting roll table 10A caused by the rotation of the casting rolls 1a and 1b. Moving, the casting roller carriage 10A is secured in the up and down direction.

[Other embodiments]

In the above, the casting roller carriage 10A has three wheels in the extending direction of the guide rails 103, 104, and the guide rails 103, 104 have the three wheels corresponding to the casting roller carriage 10A at the casting position P1. Although the two-roll continuous casting apparatus 100A of the recessed part is provided, the number of the wheel and the recessed part is not limited to three in the extending direction of the guide rail, and can be four or more.

Symbol Description

1a, 1b casting rolls;

10 casting roller trolley;

11 trolley body;

13a, 13b wheels;

14a, 14b wheels;

15a, 15b side protrusions;

16a, 16b side protrusions;

20 first fixture;

20A first pressing device body;

20B second pressing device body;

30 working oil supply and discharge device;

34 safety valve (excessive pressure suppression device);

40 second fixing device;

50 casting roller trolley replacement device;

60 third fixture;

60A first pressing device body;

60B second pressing device body;

80 trolley mobile devices;

100, 100A two-roll continuous casting device;

103, 104 rails.

Claims (9)

A two-roll continuous casting apparatus comprising: a pair of casting rolls having a cooling function and rotating in a mutual direction; and a trolley on which the pair of casting rolls are mounted and which can be driven on a guide rail, The guide rail extends from a casting position to a casting roll changing position, and the two-roll continuous casting device is characterized in that have: a first fixing device that presses the trolley in a horizontal direction at right angles to an axis of the casting roller at the casting position so as to be horizontally at a right angle to the axis of the casting roller The trolley is fixed; A second fixing device that presses the trolley in the axial direction of the casting roller at the casting position to fix the trolley in the axial direction of the casting roller. A two-roll continuous casting apparatus according to claim 1, wherein The first fixing device and the second fixing device have a piston rod of a cylinder that advances and retreats by a supply line of working fluid, and a working fluid supply passage for supplying the working fluid to the cylinder, and are disposed at the chamber An excessive pressure suppression device for suppressing excessive pressure on the working fluid supply and discharge passage. A twin roll continuous casting apparatus according to claim 1 or claim 2, wherein The pair of casting rolls are rotatably supported by bearings, The piston rod of the first fixing device is disposed in a direction opposite to the bearing in a width direction of the carriage. A two-roll continuous casting apparatus according to claim 3, wherein A side protrusion is provided on a side of the trolley and protrudes to the outside of the side of the trolley. The side protrusions are disposed opposite the piston rod of the first fixture. A twin roll continuous casting apparatus according to any one of claims 1 to 4, wherein There is further provided a trolley changing device that replaces the trolley with another of the trolleys, the trolley changing device having a support base and a support table moving device, the support stand having two parallel mountable devices a bogie mounting portion of the bogie, wherein the support table moving device can move the bogie between the one of the bogie mounting portions and the casting position, and the other of the stations The support table is moved at a position where the trolley can be moved between the vehicle mounting portion and the casting position. A twin roll continuous casting apparatus according to any one of claims 1 to 5, characterized in that There is a third fixing device that presses the trolley in the up and down direction to fix the trolley in the up and down direction. A two-roll continuous casting apparatus according to claim 6, wherein The third fixing device has a piston rod of a cylinder that advances and retreats by a supply and discharge of a working fluid, a working fluid supply and exhaust passage that supplies the working fluid to the cylinder, and is disposed on the fluid pressure supply and exhaust passage. An excessive pressure suppression device that suppresses excessive pressure. A twin roll continuous casting apparatus according to claim 6 or claim 7, wherein A pad is provided that supports the trolley at the casting location. A two-roll continuous casting apparatus according to claim 8, wherein The trolley has more than three wheels in the extending direction of the guide rail. The guide rail has a recess provided at the casting position corresponding to the three or more wheels of the trolley.

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