CN110666120A - Dummy bar body structure of rectangular billet continuous casting machine - Google Patents
Dummy bar body structure of rectangular billet continuous casting machine Download PDFInfo
- Publication number
- CN110666120A CN110666120A CN201911063918.XA CN201911063918A CN110666120A CN 110666120 A CN110666120 A CN 110666120A CN 201911063918 A CN201911063918 A CN 201911063918A CN 110666120 A CN110666120 A CN 110666120A
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- CN
- China
- Prior art keywords
- chain link
- dummy bar
- joint
- reinforcing plate
- bar body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/08—Accessories for starting the casting procedure
- B22D11/081—Starter bars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the field of metallurgical equipment, and particularly relates to a dummy bar body structure of a rectangular billet continuous casting machine. The technical scheme of the invention is as follows: the dummy bar is formed by connecting a dummy bar head, a transition section, an arc section, a connecting section, a bar body middle section and a tail section into a whole, the two ends of each chain link are processed into a convex shape and a concave shape, a convex rear chain link is matched with a concave front chain link, a pin shaft penetrates through an oval connecting hole to be movably connected, a groove is formed in the surface of each chain link, a first reinforcing plate and a second reinforcing plate are arranged in the groove in parallel, a first joint between every two adjacent first reinforcing plates and a second joint between every two adjacent second reinforcing plates are located in the middle of each chain link surface, the first joint and the second joint are located on different chain link surfaces, and the first reinforcing plate, the second reinforcing plate and each chain link surface are fastened together through countersunk head screw pairs. The side-bending limiting device can limit the side movement of the dummy bar body interface, and effectively prevents the side bending of the dummy bar body in the operation.
Description
Technical Field
The invention belongs to the field of metallurgical equipment, and particularly relates to a dummy bar body structure of a rectangular billet continuous casting machine.
Background
The rectangular billet continuous casting machine is continuous casting equipment with large section, heavy weight and large billet drawing specification, the whole structure of a rod body of the rectangular billet continuous casting machine is of a plate type structure, the single section of large section single weight can reach ton weight, and the whole set of equipment can reach more than 20 tons. Each structure joint is influenced by gravity and pulling force, and the welding point of the structure joint can be broken by welding and pulling. Each large section is easy to be disjointed and deformed, so that the upper and lower related equipment are damaged, and the production accident of steel making and drawing is caused. Therefore, in the prior art, the body structure of the dummy bar of the rectangular billet continuous casting machine is that a group of continuously arranged integral upper arc reinforcing plates are arranged on the upper arc surface of the body, and the upper arc reinforcing plates and the upper arc surface of the body are fixed into a whole through a plurality of groups of bolts. The technical requirement that the dummy bar needs to be started is limited, an oval connecting hole needs to be formed in the connecting position of the chain link and the chain link, and the dummy bar can be bent laterally under the action of various external forces due to the fact that a gap exists between the oval connecting hole and the inserted round bolt shaft.
Disclosure of Invention
The invention provides a dummy bar body structure of a rectangular billet continuous casting machine, which can limit the lateral movement of a dummy bar body interface and effectively prevent the lateral bending of the dummy bar body in the operation.
The technical scheme of the invention is as follows:
a dummy bar body structure of a rectangular billet continuous casting machine is characterized in that a dummy bar is formed by integrally connecting a dummy bar head, a transition section, an arc section joint, a connecting joint, a bar body middle joint and a tail joint, two ends of each chain link are processed into a convex shape and a concave shape, a convex rear chain link is matched with a concave front chain link, a pin shaft penetrates through an oval connecting hole to be movably connected, a groove is formed in the surface of each chain link, a first reinforcing plate and a second reinforcing plate are arranged in the groove in parallel, a first joint between every two adjacent first reinforcing plates and a second joint between every two adjacent second reinforcing plates are located in the middle of each chain link surface, the first joint and the second joint are located on different chain link surfaces, and the first reinforcing plate and the second reinforcing plate are fastened with each chain link surface through countersunk head screw pairs.
The preferable scheme of the dummy bar body structure of the rectangular billet continuous casting machine is that each reinforcing plate I and each reinforcing plate II cover the surfaces of four chain links respectively.
The invention has the beneficial effects that:
1. according to the dummy bar body structure, the two reinforcing steel plates are used at the arc-surface groove on the dummy bar, the joint of the two reinforcing steel plates is staggered, the lateral movement of the joint of the dummy bar body is limited, the problems of heavy weight and large blank drawing specification generated in the production process of a rectangular blank dummy bar are effectively solved, the strength of the bar body is enhanced, the side bending caused by uneven drawing speed is prevented, and various accidents and losses caused by the fact that the dummy bar is stressed are avoided.
2. The invention does not change the external dimension of the original component, and the weight increase can be ignored; the service life is prolonged by 30 percent, the maintenance cost and the update rate of a user are reduced, and the production and manufacturing cost is reduced.
Drawings
FIG. 1 is a schematic view of a dummy bar body structure of a rectangular billet caster;
FIG. 2 is a sectional view showing the structure of a dummy bar body of a rectangular billet caster.
Detailed Description
As shown in fig. 1 and 2, a dummy bar body structure of a rectangular billet continuous casting machine is formed by connecting a dummy bar head, a transition section, an arc section joint, a connecting joint, a bar body middle joint and a tail joint into a whole, two ends of each chain link 3 are processed into a convex shape and a concave shape, a convex rear chain link 3 is matched with a concave front chain link 3, a pin shaft penetrates through an oval connecting hole to be movably connected, a groove is formed in the surface of each chain link 3, a first reinforcing plate 1 and a second reinforcing plate 2 are arranged in the groove in parallel, a first joint between two adjacent reinforcing plates 1 and a second joint between two adjacent reinforcing plates 2 are positioned in the middle of the surface of each chain link 3, the first joint and the second joint are positioned on different surfaces of the chain links 3, and the first reinforcing plate 1, the second reinforcing plate 2 and the surface of each chain link 3 are fastened together by a countersunk head screw pair 4; each of the first reinforcing plate 1 and the second reinforcing plate 2 covers the surface of each of the four links 3.
Claims (2)
1. A dummy bar body structure of a rectangular billet continuous casting machine is characterized in that a groove is formed in the surface of each chain link, a first reinforcing plate and a second reinforcing plate are arranged in the groove in parallel, a first joint between every two adjacent reinforcing plates and a second joint between every two adjacent reinforcing plates are located in the middle of each chain link surface, the first joint and the second joint are located on different chain link surfaces, and the first reinforcing plate and the second reinforcing plate are fastened with each chain link surface together through a countersunk head screw pair.
2. The dummy bar body structure of a rectangular billet caster according to claim 1, wherein each of the first reinforcing plate and the second reinforcing plate covers four link surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063918.XA CN110666120A (en) | 2019-11-04 | 2019-11-04 | Dummy bar body structure of rectangular billet continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063918.XA CN110666120A (en) | 2019-11-04 | 2019-11-04 | Dummy bar body structure of rectangular billet continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110666120A true CN110666120A (en) | 2020-01-10 |
Family
ID=69086070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911063918.XA Pending CN110666120A (en) | 2019-11-04 | 2019-11-04 | Dummy bar body structure of rectangular billet continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110666120A (en) |
-
2019
- 2019-11-04 CN CN201911063918.XA patent/CN110666120A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |