CN215638832U - Fixing device of iron casting under high temperature environment of industrial furnace - Google Patents
Fixing device of iron casting under high temperature environment of industrial furnace Download PDFInfo
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- CN215638832U CN215638832U CN202122054528.5U CN202122054528U CN215638832U CN 215638832 U CN215638832 U CN 215638832U CN 202122054528 U CN202122054528 U CN 202122054528U CN 215638832 U CN215638832 U CN 215638832U
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- bolt
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- iron casting
- frame structure
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Abstract
The utility model discloses a fixing device for an iron casting in an industrial furnace under a high-temperature environment, which comprises a steel frame structure and a bolt, wherein a bolt mounting hole is formed in the steel frame structure, the bolt mounting hole is provided with a large hole and a small hole which are connected, an angle steel is welded behind the small hole in the steel frame structure, and the angle steel clamps the bolt to prevent the bolt from rotating. The bolt mounting hole is provided with the large hole and the small hole which are connected, tapping on a steel frame structure is cancelled, the bolt head is fixed by the small hole and the angle steel, the bolt is prevented from rotating, the problem that the bolt cannot be taken out after being corroded is solved, later-stage replacement of iron castings is facilitated, and the maintenance difficulty and the use cost of equipment are reduced.
Description
Technical Field
The utility model relates to the technical field of industrial furnaces, in particular to a fixing device for an iron casting in a high-temperature environment.
Background
The operating environment of an industrial furnace is relatively hot, especially in the part close to the furnace hearth, which is the hot zone in the mouth area. And the furnace mouth area usually needs to be subjected to operations such as slag skimming and charging by using a forklift, so that the furnace mouth area can bear a considerable degree of impact and abrasion. Therefore, the furnace mouth of the industrial furnace is mostly made of iron castings for manufacturing the furnace door frame, so that the furnace door frame is resistant to collision and can bear certain high temperature. But the iron castings need to be bolted to the steel frame structure. If tapping is carried out on a steel frame structure in a conventional mode, and then the iron casting is fixed by using the bolt, the bolt can be corroded quickly in a high-temperature environment, and the bolt cannot be screwed out completely after a period of time. Although the iron casting is resistant to collision and high temperature, the iron casting can be damaged in different degrees after being used for a long time, so that the furnace mouth iron casting frame is usually formed by splicing in a block structure and can be replaced in blocks after being damaged. But the bolt and the screw mouth can not be screwed out after being rusted, so that the iron casting can not be replaced. This may require the bolt to be cut away, however, the cut-away sections of the thread remain inside the thread opening and this may lead to the replacement cast iron part not being installed. Therefore, the operation is inconvenient, and the difficulty and the cost of maintenance and repair of the equipment in the later period can be increased.
Disclosure of Invention
The utility model aims to provide a novel fixing device for an iron casting at a furnace mouth of an industrial furnace, which can be used for conveniently taking out the bolt after being corroded by changing the fixing mode of a conventional bolt, so that the damaged iron casting is easy to replace, and the difficulty and the cost of equipment maintenance are reduced.
The technical scheme adopted by the utility model is as follows: the utility model provides a fixing device of iron casting under industrial furnace kiln high temperature environment, includes steel frame construction and bolt, last the opening of steel frame construction has the bolt mounting hole, the bolt mounting hole has continuous macropore and aperture, steel frame construction has the angle steel at the aperture rear welding, the angle steel blocks the bolt prevents that the bolt is rotatory.
The bolt mounting hole is gourd-shaped.
The big hole of the bolt mounting hole is larger than the bolt hexagonal head, so that the bolt hexagonal head can conveniently enter the bolt mounting hole, and the small hole is 0.1-2mm larger than the bolt screw rod.
And the small holes of the bolt mounting holes correspond to the mounting holes on the iron casting one by one.
The bolt mounting hole is provided with the large hole and the small hole which are connected, tapping on a steel frame structure is cancelled, the bolt head is fixed by the small hole and the angle steel, the bolt is prevented from rotating, the problem that the bolt cannot be taken out after being corroded is solved, later-stage replacement of iron castings is facilitated, and the maintenance difficulty and the use cost of equipment are reduced.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a layout of bolt mounting holes on a furnace steel frame structure according to the present invention;
FIG. 3 is a schematic illustration of the utility model in the setting;
in the figure: 1. an iron casting; 2. a nut; 3. a gasket; 4. a steel frame structure; 5. a bolt; 6. angle steel; 7. and (6) mounting holes for bolts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As can be seen from fig. 1 and 2, the utility model relates to a fixing device for an iron casting in an industrial furnace under a high-temperature environment, which comprises an iron casting 1, a nut 2, a gasket 3, a steel frame structure 4, a bolt 5 and angle steel 6. The steel frame structure is provided with a bolt mounting hole 7, the bolt mounting hole is provided with a large hole and a small hole which are connected, the steel frame structure is welded with an angle steel behind the small hole, and the angle steel clamps the bolt to prevent the bolt from rotating. The small holes of the bolt mounting holes on the steel frame structure correspond to the mounting holes on the iron castings one by one.
As can be seen from fig. 2, the bolt mounting hole of the utility model is a special-shaped hole formed by laser blanking, is similar to a gourd shape and is divided into two areas with a large hole and a small hole connected. The big hole is larger than the bolt hexagon head, so that the bolt hexagon head can conveniently enter, and the small hole area is slightly larger than the bolt lead screw and is generally 0.1-2mm larger.
The working process of the utility model is as follows:
when the iron casting 1 is fixed, firstly, a bolt hexagon head is put into a steel frame structure from a large hole area, then a bolt slides to a small hole area, and the bolt hexagon head is fixed by angle steel welded behind a small hole, as shown in figure 3; the mounting holes of the iron casting are then aligned with the bolts and placed in the holes, and the iron casting is then fastened to the steel frame structure 4 using nuts 2 and spacers 3.
When the bolt needs to be taken out, the nut 2 and the gasket 3 are loosened, and the iron casting is taken down; and then the bolt slides from the small hole area to the large hole area, so that the bolt can be easily taken out.
The bolt mounting hole is provided with the large hole and the small hole which are connected, tapping on a steel frame structure is cancelled, the bolt head is fixed by the small hole and the angle steel, the bolt is prevented from rotating, the problem that the bolt cannot be taken out after being corroded is solved, later-stage replacement of iron castings is facilitated, and the maintenance difficulty and the use cost of equipment are reduced.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (4)
1. The utility model provides a fixing device of iron casting under industrial furnace kiln high temperature environment, includes steel frame construction and bolt, its characterized in that: the bolt installation hole is formed in the steel frame structure, the bolt installation hole is provided with a large hole and a small hole which are connected, an angle steel is welded behind the small hole of the steel frame structure, and the angle steel clamps the bolt to prevent the bolt from rotating.
2. The fixing device for the iron casting in the high-temperature environment of the industrial furnace according to claim 1, characterized in that: the bolt mounting hole is calabash-shaped.
3. The fixing device for the iron casting in the high-temperature environment of the industrial furnace according to claim 1, characterized in that: the big hole of the bolt mounting hole is larger than the bolt hexagonal head, so that the bolt hexagonal head can conveniently enter the bolt mounting hole, and the small hole is 0.1-2mm larger than the bolt screw rod.
4. The fixing device for the iron casting in the high-temperature environment of the industrial furnace according to claim 1, characterized in that: and the small holes of the bolt mounting holes on the steel frame structure correspond to the mounting holes on the iron castings one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122054528.5U CN215638832U (en) | 2021-08-30 | 2021-08-30 | Fixing device of iron casting under high temperature environment of industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122054528.5U CN215638832U (en) | 2021-08-30 | 2021-08-30 | Fixing device of iron casting under high temperature environment of industrial furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215638832U true CN215638832U (en) | 2022-01-25 |
Family
ID=79903567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122054528.5U Active CN215638832U (en) | 2021-08-30 | 2021-08-30 | Fixing device of iron casting under high temperature environment of industrial furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215638832U (en) |
-
2021
- 2021-08-30 CN CN202122054528.5U patent/CN215638832U/en active Active
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