CN102343360A - Composite roll piercing mill for producing large-bore seamless steel tube - Google Patents
Composite roll piercing mill for producing large-bore seamless steel tube Download PDFInfo
- Publication number
- CN102343360A CN102343360A CN2010102428114A CN201010242811A CN102343360A CN 102343360 A CN102343360 A CN 102343360A CN 2010102428114 A CN2010102428114 A CN 2010102428114A CN 201010242811 A CN201010242811 A CN 201010242811A CN 102343360 A CN102343360 A CN 102343360A
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- China
- Prior art keywords
- steel pipe
- push rod
- plug
- steel tube
- loopback
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Abstract
The invention relates to a composite roll piercing mill for producing a large-bore seamless steel tube. The composite roll piercing mill comprises a feeding section, a main rolling mill, a centering frame group, a mandril (core rod) trolley, a driving mechanism for the mandril (core rod) trolley, a steel tube back-feeding mechanism and a mandril (core rod) replacement mechanism, wherein the steel tube back-feeding mechanism can send the steel tube which is punched once or twice back to the feeding section; and the mandril (core rod) replacement mechanism is used for replacing a mandril required by two-time punching or a core rod for extendible machining, so that the steel tube can be punched twice or extended.
Description
Technical field
The present invention relates to a kind of seamless steel pipe production, especially at the heavy caliber seamless steel pipe production field.
Background technology
At present, Chang Yong piercing mill of seamless steel tube mainly consists of: compositions such as pan feeding section, main mill, centering frame group, ejector rob trolley provided, ejector rob trolley provided driving mechanism and ejector rob trolley provided guide rail only possess filled circles pipe time processing hollow steel pipe function.Must increase in addition and build two and wear unit if be processed into other specification steel pipes.Must increase in addition and build the extension unit if heighten size and the precision of steel pipe.At the large-diameter steel pipe production field, rhythm of production is not high, moves many complete equipments simultaneously, has increased cost of investment and energy resource consumption.
Summary of the invention
It is to accomplish the processing of the once perforated of seamless steel pipe that all-in-one technical problem to be solved is extended in the compound perforation of the present invention, can also accomplish the secondary punch processing of steel pipe and the extension processing of steel pipe continuously.
For solving the problems of the technologies described above, all-in-one is extended in the compound perforation of the present invention, comprises pan feeding section, main mill, centering frame group, push rod (plug) dolly, push rod (plug) dolly driving mechanism, and steel pipe loopback mechanism and push rod (plug) be converting mechanism more.
Described steel pipe loopback mechanism routs up mechanism, steel pipe loopback roller-way and steel pipe loopback crane by steel pipe and forms.
Steel pipe loopback mechanism can once or the steel pipe behind the secondary punch be transmitted back to the pan feeding section; Push rod (plug) more converting mechanism is changed the processing of steel pipe secondary punch and is extended processing with push rod or steel pipe and use plug, thereby behind once perforated, can accomplish the secondary punch processing of steel pipe continuously and the extension of steel pipe is processed.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 extends the all-in-one machine structure sketch map for the compound perforation of the present invention.
Among the figure 1, the pan feeding section; 2, main mill, 3, centering frame group, 4, main transmission; 5 lubricating arrangements; 6, push rod (plug) changing device more, 7, top rod (plug) dolly driving mechanism, 8, push rod (plug) dolly; 9, locking and stopper mechanism; 10, steel pipe is routed up mechanism, and 11, steel pipe loopback roller-way, 12, steel pipe loopback crane.
The specific embodiment
As shown in the figure, the compound perforation extension of the present invention all-in-one mainly consists of pan feeding section 1, main mill 2, centering frame group 3, main transmission 4, lubricating arrangement 5, more changing device 6, push rod (plug) dolly driving mechanism 7, push rod (plug) dolly 8, locking and stopper mechanism 9, steel pipe are routed up mechanism 10, steel pipe loopback roller-way 11 and steel pipe loopback crane 12 to push rod (plug).Steel pipe is routed up mechanism 10, steel pipe loopback roller-way 11 and steel pipe loopback crane 12 and is formed steel pipe loopback mechanism.Get into main mill 2 at the filled circles pipe through pan feeding section 1 and accomplish once perforated, pan feeding section 1 can be made up of pusher.Behind the once perforated; Once perforated is return with push rod (plug) dolly driving mechanism 7 with push rod; Steel pipe is routed up from centering frame group 3; Mechanism is transported to pan feeding section 1 once more through the steel pipe loopback; Simultaneously; Once perforated push rod after the use (containing the top) is routed up by the stirring hook; The secondary punch push rod by push rod (plug) more changing device 6 insert ejector rob trolley provided guide rail; Automatically dock with push rod (plug) dolly 8; Be urged to the operating position by push rod (plug) dolly 8 and push rod (plug) dolly driving mechanism 7; Steel pipe gets into main mill 2 through pan feeding section 1 once more, accomplishes secondary punch; After secondary punch is accomplished; The secondary punch push rod is return with push rod (plug) dolly driving mechanism 7; Steel pipe is routed up from centering frame group 3; Mechanism is transported to pan feeding section 1 once more through the steel pipe loopback; Simultaneously; Secondary punch push rod after the use (containing the top) is routed up by the stirring hook; Extend plug by push rod (plug) more changing device 6 insert ejector rob trolley provided guide rail; Automatically dock with push rod (plug) dolly 8; Be urged to the operating position by push rod (plug) dolly 8 and push rod (plug) dolly driving mechanism 7; Steel pipe gets into main mill 2 through pan feeding section 1 once more, accomplishes steel pipe and extends processing.Extend processing back plug and drive rollback to ejector rob trolley provided guide rail 4 by push rod (plug) dolly 7 and push rod (plug) dolly driving mechanism 8, steel pipe is routed up by centering frame group 3, accomplishes a production cycle.
Certainly the present invention is not limited to the above-mentioned specific embodiment, and as just extending processing after the once perforated processing, push rod (plug) more changing device is provided with cooling body etc., all in protection scope of the present invention.
The beneficial effect of all-in-one is extended in the compound perforation of the present invention:
1, can realize multiple steel pipe rolling technology: the processing of (1) once perforated; (2) secondary punch processing; (3) perforation processing and extension processing;
2, reduce equipment investment: compare with unit of the same type, can reduce investment over half;
3, optimize process route: integrate the advantage of kinds of processes, reduce the workpiece time in transit, reduce the workpiece temperature drop;
4, reduce production costs: greatly reduce tool and mould quantity, minimizing personnel configuration reduces direct processing cost;
5, realization is increasingly automated: adopt industrial secondary control.
Claims (2)
1. the compound roll piercing mill of heavy caliber seamless steel pipe production comprises pan feeding section, main mill, centering frame group, push rod (plug) dolly, push rod (plug) dolly driving mechanism, it is characterized in that: also comprise
Steel pipe loopback mechanism through the finished steel pipe of main mill, is transmitted back to the pan feeding section through described steel pipe loopback mechanism and prepares processing once more;
Push rod (plug) is converting mechanism more, extends the processing plug in order to change the processing of steel pipe secondary punch with push rod or in order to change steel pipe.
2. the compound roll piercing mill of heavy caliber seamless steel pipe production according to claim 1 is characterized in that: described steel pipe loopback mechanism routs up mechanism, steel pipe loopback roller-way and steel pipe loopback crane by steel pipe and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102428114A CN102343360A (en) | 2010-08-03 | 2010-08-03 | Composite roll piercing mill for producing large-bore seamless steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102428114A CN102343360A (en) | 2010-08-03 | 2010-08-03 | Composite roll piercing mill for producing large-bore seamless steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102343360A true CN102343360A (en) | 2012-02-08 |
Family
ID=45542639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102428114A Pending CN102343360A (en) | 2010-08-03 | 2010-08-03 | Composite roll piercing mill for producing large-bore seamless steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102343360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424139A (en) * | 2016-12-14 | 2017-02-22 | 太原重型机械集团工程技术研发有限公司 | Difunctional extension unit and seamless steel tube production line for production of seamless steel tubes |
| CN112007965A (en) * | 2020-07-30 | 2020-12-01 | 北京科技大学 | High-temperature alloy seamless pierced billet extrusion device and extrusion method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4006618A (en) * | 1974-07-23 | 1977-02-08 | Samon Yanagimoto | Method of producing seamless steel tube |
| JP3470686B2 (en) * | 2000-07-27 | 2003-11-25 | 住友金属工業株式会社 | Rolling method of seamless steel pipe |
| CN101653784A (en) * | 2009-09-15 | 2010-02-24 | 太原通泽重工有限公司 | Ejector rob recycling replacing device of perforating machine |
| CN101653781A (en) * | 2009-09-15 | 2010-02-24 | 太原通泽重工有限公司 | Perforation production new technique of hot rolling large-diameter steel pipe |
| CN201862618U (en) * | 2010-08-03 | 2011-06-15 | 扬州龙川钢管有限公司 | Novel composite roll piercing mill for producing large-diameter seamless steel pipes |
-
2010
- 2010-08-03 CN CN2010102428114A patent/CN102343360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4006618A (en) * | 1974-07-23 | 1977-02-08 | Samon Yanagimoto | Method of producing seamless steel tube |
| JP3470686B2 (en) * | 2000-07-27 | 2003-11-25 | 住友金属工業株式会社 | Rolling method of seamless steel pipe |
| CN101653784A (en) * | 2009-09-15 | 2010-02-24 | 太原通泽重工有限公司 | Ejector rob recycling replacing device of perforating machine |
| CN101653781A (en) * | 2009-09-15 | 2010-02-24 | 太原通泽重工有限公司 | Perforation production new technique of hot rolling large-diameter steel pipe |
| CN201862618U (en) * | 2010-08-03 | 2011-06-15 | 扬州龙川钢管有限公司 | Novel composite roll piercing mill for producing large-diameter seamless steel pipes |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424139A (en) * | 2016-12-14 | 2017-02-22 | 太原重型机械集团工程技术研发有限公司 | Difunctional extension unit and seamless steel tube production line for production of seamless steel tubes |
| CN106424139B (en) * | 2016-12-14 | 2019-04-02 | 太原重型机械集团工程技术研发有限公司 | Difunctional extension unit and seamless steel tube production chain for seamless steel tube production |
| CN112007965A (en) * | 2020-07-30 | 2020-12-01 | 北京科技大学 | High-temperature alloy seamless pierced billet extrusion device and extrusion method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120208 |