CN2579560Y - New dummy bar device - Google Patents
New dummy bar device Download PDFInfo
- Publication number
- CN2579560Y CN2579560Y CN 02284127 CN02284127U CN2579560Y CN 2579560 Y CN2579560 Y CN 2579560Y CN 02284127 CN02284127 CN 02284127 CN 02284127 U CN02284127 U CN 02284127U CN 2579560 Y CN2579560 Y CN 2579560Y
- Authority
- CN
- China
- Prior art keywords
- dummy bar
- bar head
- changeover portion
- head
- transition section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a novel dummy bar device which comprises a dummy bar, a transition section which is connected with the dummy bar and a dummy bar head, wherein, connecting holes are arranged on the dummy bar head and the transition section; a rotating shaft is connected with the connecting holes; a caging device is arranged between the dummy bar head and the transition section. The dummy bar head of the dummy bar device is connected with the transition section of the dummy bar device; for spacing simultaneously; therefore, rotation in a minor angle can generate between the dummy bar head and the transition section. The purely shearing condition of the casting blank on the outlet position of a crystallizer can be effectively improved; the phenomena of cracks and steel leakage can be prevented from happening and the quality of the casting blank is improved.
Description
Technical field
The utility model belongs to metal continuous casting steel machine technical field, is specifically related to a kind of arc dummy bar device of continuous production usefulness of circular-arc type continuous casting machine.
Background technology
On circular-arc type continuous casting machine, dummy bar is by secondary cooling zone, and dummy bar head enters in the crystallizer strand is pulled out, and its afterbody is clamped reliably by withdrawing roll.Dummy bar assembling form at present commonly used, as shown in Figure 1, dummy bar head 1 and changeover portion 3 are by connecting pin 2 be rigidly connected (if no changeover portion then direct the and dummy bar body of dummy bar head be rigidly connected); Also be rigidly connected by articulation bolt 5 between changeover portion and the dummy bar 4, each hole must manufacture, the required precision height.In the production of casting machine, dummy bar head working environment is the condition of high temperature, under long-term throwing situation, analyzes the stress of dummy bar, sees shown in Figure 2ly, is its stressed reduced graph.Dummy bar outwards distortion is inevitable, that is to say dummy bar after using a period of time, and radius will strengthen, by R
0Become R
1, R
1＞R
0Arc changes difficulty in the time of certainly will causing dummy bar head to enter the crystallizer end opening again, and must it be sent into the crystallizer end opening by external force; When ejection, dummy bar head no longer suffers restraints power and will get back to free state, therefore in the crystallizer exit, do relative horizontal displacement, at this moment, strand will be subjected to the comprehensive function to the restraining force T of strand of horizontal force F that dummy bar head distortion causes and crystallizer inwall, and the place is cut in the exit position, and Fig. 3 is a stressed reduced graph in the case.This shearing force is exactly easily to crack to the influence that strand caused, and when dummy bar is out of shape when even more serious, then produces bleed-out, and dummy bar just can not continue to use, and has to it is repaired.
Summary of the invention
The purpose of this utility model is to provide a kind of novel dummy bar device, to overcome the defective that above-mentioned dummy bar device exists.
The technical scheme of the utility model dummy bar device is: the dummy bar device, and it comprises dummy bar, the changeover portion that is connected with dummy bar, dummy bar head, offer connecting hole on dummy bar head and the changeover portion, rotating shaft is connected with connecting hole, a device of limiting between dummy bar head and the changeover portion.
The dummy bar head of this dummy bar device adopts rotating shaft to be connected with changeover portion, simultaneously spacing, can do low-angle like this between dummy bar head and the changeover portion and rotate, improve strand effectively in the suffered pure situation of being cut in crystallizer outlet position, prevent the generation of crackle, bleed-out, improve slab quality.
Description of drawings
Fig. 1 has dummy bar apparatus structure schematic diagram now
Fig. 2 has dummy bar device force analysis figure now
The existing dummy bar device of Fig. 3 is out of shape stressed simplification to be attempted
Fig. 4 the utility model dummy bar device front view.
Fig. 5 the utility model dummy bar assembling plan view.
Fig. 6 dummy bar head and changeover portion syndeton diagrammatic sketch
The specific embodiment
Shown in Fig. 4,5, dummy bar head 1 links to each other with changeover portion 3 by latch plate 6, and the type of attachment of changeover portion and dummy bar 4 remains by articulation bolt 5 and is rigidly connected.As shown in Figure 6, offer connecting hole 8,9 on dummy bar head 1 and the changeover portion 3, rotating shaft 10 is connected with connecting hole 8,9, is connected elastic plate 6, the spacing seam between dummy bar head 1 and the changeover portion 3 between dummy bar head 1 and the changeover portion 3.Spacing seam between dummy bar head 1 and the changeover portion 3 comprises the boss 11-1 on the changeover portion 3, boss 11-2 on the dummy bar head 1, relative bottom surface 12-1, the 12-2 contact of two boss, the upper bottom surface 12-2 of the boss 11-2 of concrete dummy bar head 1 contacts with the bottom surface 12-1 of the boss 11-1 of changeover portion 3; Gapped between the side of boss and the corresponding surface, gapped 14-2 between the side 13-2 of the boss 11-2 of concrete dummy bar head 1 and the changeover portion 3 side .3-1, gapped 14-1 between the side 13-1 of the boss 11-1 of changeover portion 3 and the dummy bar head side 1-2.This structure can only be rotated dummy bar head within the specific limits, and the seam position is exactly its extreme position that outwards rotates.Rotating shaft 10 can make dummy bar head do certain rotation around it, and after the long-term throwing of dummy bar produced distortion, because the effect of leaf spring pulling force, dummy bar head can inwardly be done certain rotation around the shaft, makes it still can enter the crystallizer end opening smoothly and the participation of external force need not be arranged.When it carried out throwing, the dummy bar tension had the trend of outside distortion, and dummy bar head can outwards turn to the seam position again around the shaft, and the force-bearing situation that this has just improved dummy bar has effectively alleviated distortion.When throwing exported to crystallizer, because the cause of latch plate active force is arranged, the shearing situation that strand was subjected to originally just can not occur again, thereby improved slab quality.Because seam can be controlled dummy bar head and outwards rotates, be its extreme position and make it have enough rigidity, therefore make the dummy bar form of this structure still possess the characteristics of rigid dummy bar, guarantee that strand derives along normal track.When moulding adobe blocks, strand can be thrown off and the phenomenon that do not stick together smoothly, guaranteed the continuous ejection of casting machine.
The final purpose of this syndeton makes the relative changeover portion of dummy bar head (or dummy bar) position can center on inwardly generation distortion to a certain degree of rotating shaft within the specific limits exactly, improve strand effectively in the suffered pure situation of being cut in crystallizer outlet position, prevent the generation of crackle, bleed-out, improve slab quality.The assembling of the utility model dummy bar is now come into operation, and result of use is fine.
Claims (3)
1, a kind of novel dummy bar device, it comprises dummy bar, the changeover portion that is connected with dummy bar, dummy bar head is characterized in that offering connecting hole on dummy bar head and the changeover portion, and rotating shaft is connected with connecting hole, a device of limiting between dummy bar head and the changeover portion.
2, novel according to claim 1 dummy bar device is characterized in that described stopping means comprises the elastic plate that connects dummy bar head and changeover portion, the spacing seam between dummy bar head and the changeover portion.
3, as novel dummy bar device as described in the claim 2, it is characterized in that spacing seam between dummy bar head and the changeover portion comprises the boss on the changeover portion, the boss on the dummy bar head, the relative bottom surface contact of two boss, gapped between the side of a boss and the corresponding surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02284127 CN2579560Y (en) | 2002-11-08 | 2002-11-08 | New dummy bar device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02284127 CN2579560Y (en) | 2002-11-08 | 2002-11-08 | New dummy bar device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2579560Y true CN2579560Y (en) | 2003-10-15 |
Family
ID=33745550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02284127 Expired - Lifetime CN2579560Y (en) | 2002-11-08 | 2002-11-08 | New dummy bar device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2579560Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393447A (en) * | 2018-05-31 | 2018-08-14 | 鞍山市泰和连铸机械有限公司 | Prevent dummy bar head to inner arc tilting gearing |
| CN109158561A (en) * | 2018-04-25 | 2019-01-08 | 西安麦特沃金液控技术有限公司 | A kind of dummy bar, dummy bar processing unit and vertical continuous casting system |
-
2002
- 2002-11-08 CN CN 02284127 patent/CN2579560Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158561A (en) * | 2018-04-25 | 2019-01-08 | 西安麦特沃金液控技术有限公司 | A kind of dummy bar, dummy bar processing unit and vertical continuous casting system |
| CN109158561B (en) * | 2018-04-25 | 2024-03-22 | 西安麦特沃金液控技术有限公司 | Dummy bar processing device and vertical continuous casting system |
| CN108393447A (en) * | 2018-05-31 | 2018-08-14 | 鞍山市泰和连铸机械有限公司 | Prevent dummy bar head to inner arc tilting gearing |
| CN108393447B (en) * | 2018-05-31 | 2023-10-24 | 鞍山市泰和连铸机械有限公司 | Device for preventing dummy ingot head from tilting to inner arc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN ATLANTIC CONTINUOUS CASTING EQUIPMENT ENGINE Free format text: FORMER OWNER: LIU LIANQUN Effective date: 20090911 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090911 Address after: Jiang Xing Lu Hubei city in Wuhan province Jianghan Economic Development Zone No. 27, zip code: 430023 Patentee after: Wuhan Atlantic Ocean Continuous Casting Machine Engineering Co., Ltd. Address before: Hubei city of Wuhan province Hankou Jianghan Economic Development Zone No. 6 Jiang Xing Lu Hankou business center, zip code: 430023 Patentee before: Liu Lianqun |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121108 Granted publication date: 20031015 |