JP3101167B2 - Lifting table positioning guide structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator positioning guide structure, and more particularly, to an elevator positioning guide structure capable of accurately and automatically positioning an elevator below a furnace tower.

[0002]

2. Description of the Related Art A heat-resistant brick is built on the inner wall of a furnace such as a converter or an electric furnace to protect the furnace from the heat of molten metal. Although this brick has heat resistance, the temperature inside the furnace becomes extremely high, so the erosion of the brick due to the use of the furnace is severe, and the brick is usually replaced once every 1 to 6 months. ing. This brick replacement is performed by breaking down old bricks and removing them, and constructing new bricks on the inner wall of the furnace body.

[0003] As one method of the furnace-building work for building the brick, there has been conventionally proposed a Japanese Patent Application Laid-Open No. 6-1 filed by the present applicant.
As disclosed in FIG. 1 of the “furnace building equipment” of JP 09374, there is known a method using an opening provided in the bottom of the furnace so as to be openable and closable. This one is
Attach the telescoping furnace tower on the mobile trolley, place the mobile trolley at the bottom of the furnace body, extend the furnace tower with the telescopic mechanism and insert it into the furnace through the opening at the bottom of the furnace body. The work stage suspended from the furnace opening at the top of the furnace body and the operator's boarding stage are selectively assembled to the top of the tower according to the height of the furnace building work. The lifting platform on which the bricks are loaded is pulled up along the hollow portion in the furnace tower by the device, and then discharged horizontally by the discharging device, and the bricks are built on the inner wall of the furnace body by the brick-laying device.

[0004]

In the above-mentioned conventional equipment, as shown in FIG. 8, a roller conveyor on which a brick 103 is loaded on a lift 102 which is stopped below a furnace tower 101 on a movable carriage 100. On the other hand, another roller conveyer 105 for receiving the brick 103 is provided above the elevating table 102. However, since the bricks 103 loaded on the pallet for movement have a considerable weight, the moving carriage 1
From the 00 side to the elevator 102 side, the roller conveyor 104, 1
If the transport position b of the roller conveyor 105 is misaligned with respect to the transport direction a of the roller conveyor 104 when the stop position of the elevator 102 is displaced during the transfer of the It is difficult to accurately set the brick 103 at the mounting position of the elevator 102 shown by diagonal lines in the figure, so that the brick 103 of the cargo does not fall from the 102, and it takes a great deal of labor and labor to correct the position. There was such a problem.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an elevator platform positioning guide structure capable of accurately and automatically positioning an elevator platform below a furnace tower.

[0006]

According to the present invention, there is provided a semiconductor device comprising:
The lifting platform positioning guide structure according to the above is a lifting platform positioning guide structure for positioning the lifting platform when the lifting platform moving up and down between the upper and lower parts of the furnace tower stops at the lower part of the furnace tower. A mounting table for mounting the elevating table on the lower part of the furnace tower is provided, and the mounting table and the elevating table are each provided with one of a pair of coarse positioning concave and convex portions, Either one of the pair of dense positioning concave and convex parts is arranged, and as the descent of the elevating platform progresses, first, the elevating platform is guided by the rough positioning concave and convex parts to roughly position the elevating platform. Thereafter, the lift table is guided by the concave and convex portions for fine positioning, and the lift table is configured to be closely positioned.

According to a second aspect of the present invention, there is provided an elevator platform positioning guide structure according to the first aspect, wherein at least one of the rough positioning concave and convex portions and / or the close positioning concave and convex portions is provided. On the other hand, a shock absorbing means for absorbing a shock is provided.

[0008]

In the lift guide positioning guide structure according to the first and second aspects, when the lowered lift reaches the lower part of the furnace building tower, first, a pair of coarse positioning recesses and projections provided on the lift is provided. One of the portions is guided by the other of the pair of coarse positioning recesses and projections provided on the mounting table, and continues to descend while the lifting platform is roughly positioned. One of the positioning concave and convex parts is guided by the other of the paired fine positioning concave and convex parts provided on the mounting table, and the elevating table is mounted on the mounting table. It is stopped at a predetermined position below the tower.

[0009] In particular, in the lift guide positioning guide structure according to the second aspect, the lift stand is mounted by buffer means provided in at least one of the rough positioning concave and convex portions and / or the fine positioning concave and convex portions. Reduces impact when placed on a table.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a schematic cross-sectional view of a furnace building tower equipment to which an elevator platform positioning guide structure according to an embodiment of the present invention is applied, FIG. 2 is an enlarged plan view of an elevator platform housed in the furnace tower, FIG. 3 is an enlarged side view showing the elevating table mounted on the mounting table, FIG. 4 is an enlarged front view showing the elevating table mounted on the mounting table, FIG. 5 is an enlarged plan view of the mounting table, and FIG. FIG. 7 is an enlarged sectional view of a main part of the table positioning guide structure, and FIG.

As shown in FIG. 1, a furnace construction tower equipment 10 to which an elevator platform positioning guide structure A according to one embodiment of the present invention is applied is formed on a movable carriage 15 at a furnace bottom of a furnace body 13. A furnace tower 16 which can be inserted into the furnace through the opening is mounted. A work deck 17 is mounted on the upper part of the furnace building tower 16, and the wire rope 57 wound around the drum 100 of the elevating device 66 provided on the work deck 17 is taken out or taken up. As a result, the elevator 46 on which the pallets 26 on which the bricks 25 are stacked is placed on the roller conveyor 67 is moved up and down along the hollow portion 35 formed inside the furnace building tower 16. The tip of the wire rope 57 is fixed to the center of the lower surface of the elevator 46 via pulleys 71 fixed to the corners of the lower portion of the elevator 46. A thick backing plate 80 is fixed near both ends on the long width side of the lower portion of the elevating table 46.

An elevating table storage part 15a is formed in the tower mounting part of the movable carriage 15 so as to be depressed. As shown in FIG. 5, an elevating table 46 can be mounted on the bottom of the elevating table storage part 15a. And a mounting table 110 in which a long frame 90 and a short frame 91 of a steel material are connected in a rectangular shape. Long and short frame 9
A mounting frame 110a for fixing the mounting table 110 to the inside of the elevating table storage part 15a is fixed to the lower surface of the moving carriage 15 on the lower surface of the long frame 90.
On the upper side, a receiving plate 81 of the elevating platform 46 that comes into contact with the backing plate 80
Is installed.

Returning to FIG. 1, when the elevator 46 is mounted on the mounting table 110, the roller conveyor 67 and the roller conveyor 67 are positioned at the entrance 36 formed only at one place in the furnace tower 16 of the movable carriage 15. A roller conveyor 101 for loading bricks having the same height is attached (see also FIG. 3). An elevating opening 47 for an elevating table 46 is formed at the center of the work deck 17.
The rod 1 protruding from the lift 46 that has been raised to 7
A lifting platform stopper 18 that is supported downward by 8a is attached. When the lift 46 is supported by the rod 18a, the height of the roller conveyor 67 of the lift 46 and the height of the roller conveyor 102 attached to the upper part of the work deck 17 match. Next, the elevator platform positioning guide structure A will be described in detail with reference to FIGS.

As shown in FIGS. 4 and 6, in addition to the mounting table 110, the mounting table 1
2 and a pair of coarse positioning concave portions 111, coarse positioning convex portions 112, and
A pair of fine positioning recesses 113 and a fine positioning projection 114
have. As shown in FIGS. 2, 5, and 6, a long coarse positioning convex portion 112 having a relatively large diameter and a hemispherical tip is attached to a lower surface near both ends of a central frame 46a of the lift base 46. The semi-circular coarse positioning recess 111 having a trumpet-shaped enlarged portion 111a at the top thereof is
10 are provided at both ends. Specifically, the short frame 9
A vertical plate 93 is fixed to an end surface inside the mounting table 110,
Three reinforcing plates 94 from the vertical plate 93 toward the inside of the lift table
Are projected horizontally, and a semi-cylindrical plate 95 having the same shape as the rough positioning convex portion 112 is fixed to the front end surfaces of these reinforcing plates 94 in series, thereby forming a coarse positioning concave portion 111.

As shown in FIG. 5, a pair of closely-positioned convex portions 114 are formed of a total of four projecting pieces 115 protruding outward from the vicinity of both ends of each long frame 90 of the mounting table 110. , Are mounted on one of the diagonally arranged ones. A spring cylinder type shock absorber 116 is attached to the other diagonal side of the projecting piece 115. As shown in FIGS. 6 and 7, the dense positioning projection 114 has a cylinder 117 fixed to the protruding piece 115 via a flange, and a bolt hole 118 formed in the lower end surface of the cylinder 117. The lower end of the bolt 120 into which the spring 119 is inserted is loosely inserted. At the upper end of the bolt 120, a rod 122 that can move up and down in the cylindrical body 117 and has a conical portion 121 at the end is fixed.

As shown in FIGS. 6 and 7, when the elevating table 46 is mounted on the mounting table 110 and the conical portion 121 of the fine positioning convex portion 114 is fitted into the conical fine positioning concave portion 113, The rod 122 is pushed into the cylinder 117 against the spring force of the spring 119 by the weight of the lift 46,
Reduce the impact force at that time. These components 117,
The shock absorbing means 125 for absorbing the impact is constituted by 119, 120 and 122. The shock absorber 116 is provided in FIG.
As shown in FIG.
A rod 123 having the same shape as the rod 122 without the conical portion 121 is fixed to the upper end of the rod.

As shown in FIGS. 2 and 6, near both ends of each long frame 46b of the lift 46, the protrusions 114 for the fine positioning and the shock absorber 116 protrude horizontally inside the lift 46.
Contact plate 124 against which the rods 122 and 123 contact
Is fixed on the back surface of one of these abutting plates 124 which is arranged diagonally, and
13 are formed. That is, the other diagonally arranged contact plate 124 is for the shock absorber 116.

Next, the operation of the lifting platform loading stopper structure A according to one embodiment of the present invention will be described. As shown in FIGS. 1 and 6, the elevator 46 on which the bricks 25 are loaded in the lower part of the furnace tower 16 rises in the hollow portion 35 by the elevator 66 and reaches the work deck 17. The rod 18a of 18 protrudes, and the lift 46 is stopped. Thereafter, the bricks 25 are paid out onto the work deck 17 by the roller conveyors 67 and 102, and the brickwork is performed by a worker or by a furnace (not shown).

Thereafter, the elevator 4 from which the bricks 25 were paid out
6 is prepared for the next work of loading the bricks 25 by descending in the hollow portion 35. When the elevator 46 reaches the lower part of the tower, first, the long rough positioning convex portion 112 provided on the elevator 46 is provided. Is a rough positioning recess 111 of the mounting table 110.
Is inserted into. At this time, if there is a displacement, the tip of the rough positioning projection 112 comes into contact with the trumpet-shaped enlarged portion 111a of the coarse positioning recess 111, and thereafter the descent of the lifting table 46 continues. Along with the inner periphery of the coarse positioning concave portion 111, the coarse positioning convex portion 11
2 moves to the center of the coarse positioning concave portion 111, and finally, as shown in FIG.
When the positions 12 coincide with each other, coarse positioning of the lift 46 is performed.

Subsequently, as the elevator 46 continues to descend, the conical portions 121 of the fine positioning protrusions 114 provided on the mounting table 110 become conical portions formed on the corresponding contact plates 124 of the elevator 46. As in the case of the coarse positioning concave and convex portions 111 and 112, the automatic positioning correction is performed by the guide structure of the fitted concave and convex portions 113 and 114 in the fine positioning concave portion 113, and By being mounted on the mounting table 110, the elevator 46 is accurately positioned at a predetermined position below the tower, that is, the transport direction of the roller conveyor 101 of the movable carriage 15 shown in FIG.
Is stopped at a position where the transfer direction is almost completely in series. The impact force when the lifting table 46 is mounted on the mounting table 110 is determined by the fine positioning convex portion 114 and the shock absorber 11.
6, the rods 122 and 123 abutting against the abutting plate 124 by the spring force of the spring 119 built in the cylindrical body 117.
It is absorbed by being pushed inside. Thereby, damage to both members 46 and 110 due to the impact force at the time of mounting can be prevented.

As described above, after the elevating platform 46 that has descended at the lower part of the furnace building tower 16 is roughly positioned by the long-side rough positioning concave and convex portions 111 and 112, the short-side fine positioning is performed. Since the positioning is accurately performed by the concave and convex portions 113 and 114, the elevator 46 can be automatically and smoothly stopped at an accurate predetermined position below the tower. Accordingly, when the bricks 25 are loaded on the elevator 46 at the lower part of the tower, the displacement of the loading position of the bricks 25 on the roller conveyor 67 due to the deviation of the stop position of the elevator 46, and Bricks 2 from elevator 46
5 can be prevented from falling.

The present invention is not limited to the above embodiment. For example, in the embodiment, a converter is exemplified as a furnace body constructed by the furnace construction equipment of the present invention. The type of the furnace is not limited as long as the furnace body in which the brick is built. Further, in the embodiment, the furnace tower is a tower that does not expand or contract. However, the tower is not limited to this, and may be a multi-stage tower that can expand and contract using, for example, a telescopic cylinder.

Further, the structures of the elevating table and the mounting table are not limited to those of the embodiment, but may be any other structures. Furthermore, mounting of the concave for rough positioning, the convex and concave for fine positioning, the convex on the
Without being limited to the embodiment, the mounting sides of the respective concave and convex portions may be reversed.

The number of the concave and convex portions for coarse positioning and the concave and convex portions for fine positioning need not be limited to the number in the embodiment. Further, in the embodiment, the buffer means for absorbing an impact is provided in the fine positioning convex portion. However, the present invention is not limited to this, and is provided in at least one of the fine positioning concave portion and the coarse positioning concave portion and the convex portion. I just need.

[0025]

According to the first and second embodiments, the rough positioning concave and convex portions and the fine positioning concave and convex portions of the lifting table are provided on the mounting table and the lifting table. , Since each of the concave and convex parts was assembled and arranged,
When the descending elevator reaches the lower part of the furnace tower, first, a pair of coarse positioning recesses provided on the elevator,
One of the projections is a pair of coarse positioning recesses provided on the mounting table, and the other of the projections is guided to roughly position the lifting platform, and then the pair of fine positioning recesses provided on the lifting platform. , One of the protrusions is a pair of dense positioning recesses provided on the mounting table, and the elevator is guided by the other of the projections, so that the elevator is mounted on the mounting table. Can be stopped in place, which at the bottom of the furnace tower,
When loading bricks on the elevator, displacement of the loading position of the bricks on the elevator due to displacement of the stop position of the elevator, and the fall of bricks from the elevator during the elevation due to it can be prevented. .

In particular, in the lift guide positioning guide structure according to the second aspect, the buffer means is provided on at least one of the rough positioning recess, the convex portion and / or the fine positioning recess and the convex portion. Can be reduced when the device is mounted on the mounting table, thereby preventing damage to the vicinity of the elevating table and the contact portion of the mounting table.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view of a furnace building equipment to which an elevator platform positioning guide structure according to an embodiment of the present invention is applied.

FIG. 2 is an enlarged plan view of a lifting platform stored in a furnace tower.

FIG. 3 is an enlarged side view showing the elevating table mounted on the mounting table.

FIG. 4 is an enlarged front view showing a lifting platform mounted on the mounting table.

FIG. 5 is an enlarged plan view of the mounting table.

FIG. 6 is an enlarged cross-sectional view of a main part of the lifting platform positioning guide structure.

FIG. 7 is an enlarged sectional view of a fine positioning projection.

FIG. 8 is an enlarged plan view of a lifting platform according to the conventional means without a positioning guide structure at a position below the tower.

[Explanation of symbols]

10: Furnace tower equipment, 13: Furnace body, 15: Moving trolley,
15a: elevator platform storage, 16: furnace tower, 17: work deck, 18: elevator stopper, 18a: rod, 2
5: brick, 26: pallet, 35: cavity, 36: doorway, 46: elevator, 46a: central frame, 46b: long frame,
47: elevator, 57: wire rope, 66: elevator
67: roller conveyor, 71: pulley, 80: patch, 8
1: receiving plate, 90: long frame, 91: short frame, 93: vertical plate, 94: reinforcing plate, 95: semi-cylindrical plate, 100: drum,
101: roller conveyor, 102: roller conveyor, 1
10: mounting table, 110a: mounting frame, 111: concave portion for coarse positioning, 111a: enlarged diameter portion, 112: convex portion for coarse positioning, 113: concave portion for fine positioning, 114: convex portion for fine positioning, 115: projection , 116: shock absorber, 117: cylinder,
118: Bolt hole, 119: Spring, 120: Bolt, 121: Conical part, 122: Rod, 123: Rod, 124: Contact plate, 125: Buffer means, A: Elevating platform positioning guide structure

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kiyoharu Ito 46-59 Ohara Nakahara, Tobata-ku, Kitakyushu-shi, Fukuoka Nippon Steel Corporation Machinery & Plant Business Department (72) Inventor Takeshi Kimoto Tobata, Kitakyushu-shi, Fukuoka Nippon Steel Corporation Machinery & Plant Business Department (72) Shinji Shima Inventor Shinji Shima 46-59 Nakahara, Tobata-ku, Kitakyushu City, Fukuoka Prefecture Nippon Steel Corporation Machinery & Plant Business Department (72 Inventor Hiroyuki Kono 46-59 Nakahara, Toba-ku, Kitakyushu-shi, Fukuoka Prefecture Nippon Steel Plant Design Co., Ltd. (72) Inventor Kunihiko Rikuhoku 46-46 Nakahara, Tobata-ku, Kitakyushu-shi, Fukuoka Prefecture Nippon Steel Plant Design Co., Ltd. 72) Inventor Toshio Wada 46-59 Nakahara, Toba-ku, Kitakyushu-shi, Fukuoka Prefecture Inside Nippon Steel Plant Design Co., Ltd. (72) Inventor Arata Haga 1-9-10, Sanno, Yahata-Higashi-ku, Kitakyushu-shi, Oka Prefecture Inside Kuzuki Kogyo Co., Ltd. (72) Inventor Yasuhiro Higashishima 1-9-10, Sanno, Yawata-Higashi-ku, Kitakyushu-shi, Fukuoka Kochi (72) Inventor Masaya Sakurai 1-9-10 Sanno, Yahatahigashi-ku, Kitakyushu-shi, Fukuoka Prefecture Inside Kuzuki Kogyo Co., Ltd. (58) Field surveyed (Int.Cl. ⁷ , DB name) F27D 1/16 C21B 7/06 C21C 5/44

Claims (2)

(57) [Claims] 1. An elevator positioning guide structure for positioning the elevator when the elevator that moves between the upper and lower parts of the furnace tower stops at the lower part of the tower. A mounting table for mounting the elevating table is provided at the lower part of the mounting table, and the mounting table and the elevating table are each provided with one of a pair of coarse positioning concave and convex portions,
Either one of the pair of dense positioning concave and convex parts is arranged, and as the descent of the elevating platform progresses, first, the elevating platform is guided by the rough positioning concave and convex parts to roughly position the elevating platform. Then, the lift table is guided by the concave and convex portions for fine positioning, and the lift table is finely positioned, whereby the lift table positioning guide structure is characterized. 2. The lift table according to claim 1, wherein a shock absorbing means is provided on at least one of the concave and convex portions for coarse positioning and / or the concave and convex portions for fine positioning. Positioning guide structure.