JPH083608A - Device for repairing iron tapping hole - Google Patents

Abstract

PURPOSE:To smoothen a braking work by widening the shifting range of a breaker. CONSTITUTION:The breaker 41 is vertically moved by moving upward/downward a vertically moving beam 9 with a cylinder for vertical movement 11 and a swing base 3 is moved in the side direction by rotating the swing base 3 with a swing mechanism. Further, the breaker 41 is moved in the front and back direction by turning of a turning arm 12 round pivoted axis 13 as the supporting point by a cylinder 14 for turning and shifting with a shifting of a frame 36 in relation to a turning frame 26 by a cylinder for shifting. Further, the breaker is swung to the right and the left sides by swinging a swing arm 16 with a hydraulic motor 20, and further, vertically inclined by turning with a cylinder 32 for the frame of the turning frame 26 using pivotal axis 27 as the supporting point. Therefore, the breaker 41 can freely be shifted with various postures thereof vertically and laterally in a wide range, thus the braking work can be performed smoothly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair device for crushing and repairing a tap hole of a blast furnace or the like.

[0002]

2. Description of the Related Art The applicant of the present invention has developed a converter shown in FIG. This apparatus is provided with a movable table 54 which is moved in the width direction of the vehicle 51 along a guide rod 53 by a traverse cylinder 52 on a vehicle 51 equipped with traveling wheels 50. The movable table 54 has a lift cylinder 55. A substrate 58 which is provided with a lifting boom 57 that can be lifted up and down with a pivot 56 as a fulcrum by a swinging cylinder (not shown) is attached through a swinging mechanism 59, and a turning cylinder 60 is attached to the lifting boom 57. A telescopic boom 62 equipped with a mounting member 61 which is turned by means of a telescopic cylinder 63 is telescopically fitted by the telescopic cylinder 63, and the mounting member 61 is rotated by a tilting cylinder 65 with a mounting shaft 64 as a fulcrum. It has a structure in which a movable air breaker 66 is mounted (Japanese Patent Publication No. 52-28725).

When crushing the tap hole of the converter with this device, the height of the breaker 66 is basically the elevation boom of the elevation boom 57 by the elevation cylinder 55, and the breaker 6 is also elevated.
The horizontal position of 6 (the position perpendicular to the paper surface in FIG. 8) is the lateral movement of the movable base 54 by the traverse cylinder 52, and the front-back position of the breaker 66 (the left-right position in FIG. 8) is the telescopic cylinder 63. Further, the projecting direction of the breaker 66 is determined by the rotation of the tilting cylinder 65 about the mounting shaft 64 of the breaker 66 as a fulcrum, and by this operation, the breaker 66 attached to the crushing position is operated.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The above-mentioned conventional converter for tapping a steel outlet of a converter has a cylinder 55 for elevation and a cylinder 5 for traverse.
2. The range in which the breaker 66 can be moved by the telescopic cylinder 63 and the like is narrow, and there is a complaint that it is difficult to crush, especially when the tap hole is below the carriage 51. To accurately crush only the necessary parts without breaking the excess part,
It is necessary to operate the breaker 66 with the protruding direction of the breaker 66 parallel to the center line of the tap hole, but this cannot be done at the limit position of the narrow movable range of the breaker. Since the operation is forced, it is easy to break the excess part and there is a disadvantage that it takes time to crush. Therefore, this converter taphole repair device cannot be used as a blast furnace taphole repair device, and up until now, the blast furnace taphole repair had been performed by an operator directly operating a breaker.

According to the present invention, the breaker can be moved horizontally in a wide range in the vertical and horizontal directions, and the projecting direction of the breaker can be changed to various states as needed, so that the blast furnace tap hole or other crushing work can be performed. It is an object of the present invention to provide a repair device capable of efficiently and smoothly performing the repair work.

[0006]

In order to achieve the above object, the present invention provides a traveling vehicle, a swivel mounted on the traveling vehicle via a swivel mechanism so as to be rotatable, and the swivel. A lift boom which is mounted on the upper and lower parts by a first pivot so as to be lifted up and down, a lift cylinder which lifts the lift boom up and down with the first pivot as a fulcrum, and a first pivot at the free end of the lift boom. A rotating arm vertically rotatably erected vertically by a second pivot in the elevation plane of the elevation boom as a fulcrum, and a rotation cylinder for vertically rotating the rotation arm with the second pivot as a fulcrum. A swivel arm attached to the lower end of the swivel arm so as to swivel in the circumferential direction; a swivel actuator for swiveling the swivel arm with respect to the swivel arm; Rotatably attached to A moving frame, a frame cylinder for rotating the rotating frame up and down with the third pivot as a fulcrum, and rotating with respect to the rotating frame in a rotating plane with the third pivot of the rotating frame as a fulcrum. A moving frame mounted movably in the length direction of the frame; a moving cylinder for moving the moving frame with respect to the rotating frame; and a protruding direction of the moving frame with respect to the rotating frame. And a breaker attached to the moving frame.

In the above description, the first link is attached to the revolving arm by the first pin so as to be vertically rotatable in the revolving frame of the revolving frame having the third pivot as a fulcrum. The link is attached to the free end of the first link and the second link at the free end and the upper end to the turning arm by the second pin so that the link can be turned up and down in the turning plane of the turning frame having the third pivot as a fulcrum. It is preferable that the lower end of the frame cylinder connected with 3 pins is connected with the 4th pin.

[0008]

[Operation] When the boom is raised, the breaker moves up and down in a wide range from a position lower than the traveling vehicle to a position higher than the traveling vehicle. When the rotating frame is rotated up and down, the projecting direction of the breaker changes to upward, horizontal, and downward, and when the swivel arm is swung, the projecting direction of the breaker changes left and right. The protruding direction of the breaker can be freely changed at any height position. Therefore, the breaker can be attached to a position where it can be easily operated in an ideal state, and the crushing work such as the tap of the blast furnace can be efficiently and smoothly performed.

When the lower end of the frame cylinder is connected to the revolving arm and the rotating frame via two links,
The turning angle of the turning frame about the pivot becomes large.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a taphole repairing apparatus according to the present invention will be described with reference to FIGS. In these drawings, reference numeral 1 is a traveling vehicle. The traveling vehicle 1 has a self-propelled function,
The left and right crawlers 2 and 2 are operated to run. Traveling vehicle 1
A swivel base 3 is attached to the upper part of the above through a swivel mechanism 4. The turning mechanism 4 includes a hydraulic motor 6 for rotating the pinion 5 and a ring gear 7 meshed with the pinion 5.
And the rotation of the pinion 5 by the operation of the hydraulic motor 6 causes the swivel base 3 to swivel with respect to the traveling vehicle 1.

On the swivel base 3, a depression / elevation boom 9 is attached to the pivot 1.
It is attached with 0. The elevation boom 9 is vertically elevated by the elevation cylinder 11 with the pivot 10 as the fulcrum. The elevation angle α by the elevation cylinder 11 of the elevation boom 9 is, for example, 48.5 degrees. At the free end of the elevation boom 9, a rotating arm 12 is vertically installed on a pivot 13. The turning arm 12 is turned up and down (left and right in FIG. 1) about a pivot 13 as a fulcrum by a turning cylinder 14. The pivots 10 and 13 are parallel to each other, and the elevation boom 9
And the rotating arm 12 rotate up and down in the same vertical plane. The turning angle β1 of the turning arm 12 by the turning cylinder 14 to the front (to the left in FIG. 1) is, for example, 37 degrees, and the backward turning angle β2 is, for example, 41 degrees.

At the lower end of the rotary arm 12, a downwardly tapered revolving arm 16 is attached via a ball bearing 17 (FIG. 5). The inner race 17a of the ball bearing 17 is fixed to the rotating arm 12 with a bolt 18, and the outer race 17b is fixed to the revolving arm 16 with a bolt 19. The outer surface of the outer race 17b is a gear 17c, which is meshed with a pinion 21 rotated by a hydraulic motor (turning actuator) 20.
The hydraulic motor 20 turns the turning arm 16 in the circumferential direction via the pinion 21 and the gear 17c, and is fixed to the turning arm 12.

The gear 17c and the pinion 21 are covered by the cover 22.
(Fig. 1). A rotary center joint 23 (FIG. 4) is attached to the center of the lower end of the rotating arm 12, and a rotation stopping plate 24 is attached to the turning arm 16. The rotation stop plate 24 is locked to the rotary center joint 23 so that the rotation arm 12
The swivel arm 16 is prevented from swiveling over 360 degrees.

Reference numeral 26 is a rotating frame. The rotating frame 26 is attached to the lower end of the rotating arm 16 by a pivot 27 so as to be vertically rotatable. An arc-shaped link 28 is attached to the lower portion of the revolving arm 16 with a pin 29, and a link 30 is attached to the lower surface of the rotating frame 26 with a pin 31. The free ends of the links 28 and 29 are connected to the piston rod 32a of the frame cylinder 32 by a pin 33.

The frame cylinder 32 includes links 28,
The rotating frame 26 is rotated up and down with respect to the revolving arm 16 with a pivot 27 as a fulcrum via 30. The upper end is connected to the revolving arm 16 by a pin 34. Pin 2
9, 31, 33 and 34 are parallel to the pivot 27,
The rotating frame 26 and the links 28 and 30 rotate in the same vertical plane. The links 28 and 30 prevent the pin 33 from touching the revolving arm 16 when the frame cylinder 32 is contracted, and the pivot frame 26 having the pivot 27 as a fulcrum.
Increase the rotation angle θ. The turning angle θ of the turning frame 26 is, for example, 100 degrees from directly below the pivot 27.

The rotating frame 26 includes a moving frame 36.
However, the guide rail 26a is fitted in the guide groove 36a (FIG. 7) and attached. The guide groove 36a is formed by a groove member 36b fixed to the moving frame 36 with a bolt 37, and the guide rail 26a is fixed to a side surface of the rotating frame 26 with a bolt 38. The moving frame 36 can move in the longitudinal direction of the turning frame 26 with respect to the turning frame 26 within the turning plane of the turning frame 26 with the pivot 27 as a fulcrum.

Inside the turning frame 26, a moving cylinder 39 (FIG. 6) for moving the moving frame 36 with respect to the turning frame 26 has its piston rod 39a (FIG. 7) attached to the moving frame 36 by a pin 40. The air or hydraulic breaker 41 is attached to the moving frame 36 in the projecting direction (operating direction) of the moving frame 36.
It is attached so as to match the moving direction of 6. The swivel base 3 is provided with an operator's cab 42 (FIG. 1) having a front surface covered with heat insulating glass.

Next, the operation of the tap hole repairing apparatus according to the present invention having the above-described structure will be described. Blast furnace 4 with this repair device
When crushing the tap hole such as 5 (Fig. 1), for example, the iron plate 47 is laid on the gutter 46 (Fig. 2) through which the hot metal flows and the traveling vehicle 1
Place the breaker 41 on the hot water reservoir 4 as shown by the solid line in FIG.
Put in 8. Then, from the state of the solid line in FIG.
1 is operated and the moving frame 36 is moved by the moving cylinder 39.
The breaker 41 is moved forward to the left in FIG.

The solid line in FIG. 1 shows a state in which the breaker 41 is horizontal, but when the breaker 41 is tilted upward or downward at that position, the frame cylinder 32 is extended or contracted. FIG. 1A shows a state where the breaker 41 is tilted upward in this way. Further, when turning the breaker 41 horizontally at the position shown in FIG.
The turning arm 16 is turned at 0. Furthermore, the breaker 41
When changing the height of, the elevation cylinder 11 is used to raise the elevation boom 9 and the rotation cylinder 14 is operated to keep the rotation arm 12 vertical. FIG. 1B shows a state in which the breaker 41 is thus raised in the horizontal state.

The front and rear positions of the breaker 41 are provided by the moving cylinder 39 and by the rotating cylinder 14 by the rotating arm 12.
Is rotated back and forth, and the elevation boom 9 is elevated with the elevation cylinder 11. The left and right positions of the breaker 41 are set by turning the turning base 3 by the turning mechanism 4. On this occasion,
When it is not desired to change the projecting direction of the breaker 41, the swivel arm 16 is swung by the hydraulic motor 20 in the direction opposite to the swivel direction of the swivel base 3 at the same angle as the swivel angle of the swivel base 3. In addition, the breaker 41 is turned by turning the turning base 3.
The front and rear positions of the position change, but this is corrected by moving the moving frame 36 forward and backward by the moving cylinder 39.

As described above, the breaker 41 is moved to a desired position and the taphole is crushed. The operation of moving the breaker 41 is based on the above, but in practice, it is common to move the breaker 41 in a complex manner according to the situation at the site. When the repair device is run, the breaker 41 that has been raised to the state of (b) in FIG. 1 is normally directed downward by reducing the frame cylinder 32 so that it does not come into contact with other equipment. The repair device can be operated by remote control or computer control.

[0022]

As described above, since the taphole repairing device according to the present invention has the above-mentioned structure, the breaker is moved horizontally in a wide range in the vertical and horizontal directions and, if necessary, in parallel. The breaking direction of the breaker can be changed to various states. Therefore, it is possible to carry out the work efficiently and smoothly by crushing only the necessary portion with minimum accuracy without destroying the extra portion.

When the lower end of the frame cylinder is connected to the revolving arm and the revolving frame via two links,
Since the turning angle of the turning frame with the pivot as the fulcrum can be increased, the workability can be further enhanced by allowing the breaker to hang straight down as in the illustrated embodiment.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a taphole repair device according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a front view showing a relationship between a turning arm and a breaker, which are partially broken.

FIG. 5 is a cross-sectional view showing a relationship between a hydraulic motor, a pinion, a gear, and the like.

FIG. 6 is a side view showing a relationship between a revolving arm, a rotating frame, a moving frame, and the like.

7 is a sectional view of a VII-VII portion of FIG.

FIG. 8 is a side view of a conventional taphole repair device.

[Explanation of symbols]

 1 Traveling Vehicle 3 Revolving Platform 4 Revolving Mechanism 9 Depression Boom 10 Axis 11 Depression Cylinder 12 Revolving Arm 13 Axis 14 Rotation Cylinder 16 Revolving Arm 20 Hydraulic Motor (Rotating Actuator) 26 Revolving Frame 28 Link 29 Pin 30 Link 31 Pin 32 Frame Cylinder 33 Pin 34 Pin 36 Moving Frame 39 Moving Cylinder 41 Breaker

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Atsushi Yamaguchi 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) In-house Tsuneo Suzuki 1-34-1, Akabane Nishi, Kita-ku, Tokyo Suzuki Giken Kogyo Co., Ltd. (72) Fumiyoshi Miyakoshi 1-16-8 Kameido, Koto-ku, Tokyo Astec Sales Co., Ltd.

Claims (2)

[Claims] 1. A traveling vehicle, a swivel mounted on the traveling vehicle via a swivel mechanism so that the vehicle can swivel freely, and a lift boom mounted on the swivel so as to be vertically movable by a first axis. And a lifting cylinder for vertically moving the elevation boom up and down with the first pivot as a fulcrum, and a free end of the elevation boom capable of pivoting up and down in the elevation plane of the elevation boom with the first axis as a fulcrum. A rotating arm vertically laid on the second pivot,
A rotating cylinder for rotating the rotating arm up and down about the second pivot as a fulcrum, a rotating arm attached to the lower end of the rotating arm so as to be rotatable in the circumferential direction, and the rotating arm as the rotating arm. A swivel actuator for swiveling with respect to the swivel arm, a swivel frame attached to the lower end of the swivel arm so as to be able to swivel up and down by a third pivot, and the swivel frame is swung up and down with the third pivot as a fulcrum. The frame cylinder, a moving frame attached to the rotating frame so as to be movable in the length direction of the rotating frame within a rotating plane with the third pivot of the rotating frame as a fulcrum, and the moving frame A moving cylinder that moves with respect to the rotating frame, and a breaker attached to the moving frame such that the projecting direction of the moving frame matches the moving direction of the moving frame with respect to the rotating frame. Taphole repair device, characterized in that the. 2. A first link is attached to the revolving arm by a first pin so as to be vertically rotatable in a revolving frame of a revolving frame having a third pivot as a fulcrum, and the revolving frame is provided with: The second link is attached by a second pin so as to be vertically rotatable in a rotation plane of a rotation frame having a third pivot as a fulcrum, and an upper end is swung on a free end of the first link and the second link. The taphole repair device according to claim 1, wherein a lower end of a frame cylinder connected to the arm by a third pin is connected by a fourth pin.