CN102327904B - Three-roller centering device for rolling mill - Google Patents
Three-roller centering device for rolling mill Download PDFInfo
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- CN102327904B CN102327904B CN 201110209727 CN201110209727A CN102327904B CN 102327904 B CN102327904 B CN 102327904B CN 201110209727 CN201110209727 CN 201110209727 CN 201110209727 A CN201110209727 A CN 201110209727A CN 102327904 B CN102327904 B CN 102327904B
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- swing arm
- guide roller
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- hinged
- shaped swing
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Abstract
The invention discloses a three-roller centering device for a rolling mill, which solves the problem that the guide device can not adapt steel pipes with different specifications. The three-roller centering device for the rolling mill comprises an upper guide roller driving cylinder (2) and a lower guide roller driving cylinder (3) which are arranged on a rack (1). An L-shaped swing arm (4), a T-shaped swing arm (6) and a reversed V-shaped swing arm (8) are hinged on the rack (1), a first adjusting pad (5) which can adjust the amplitude of swing of the L-shaped swing arm (4) is arranged between the L-shaped swing arm (4) and the rack (1), and a second adjusting pad (7) which can adjust the amplitude of swing of the T-shaped swing arm (6) is arranged between the T-shaped swing arm (6) and the rack (1). A hinged shaft (18) connected with a driving motor (20) is provided with a driving sprocket (17), and a driven sprocket (15) is arranged on a shaft (14) of one end of a lower left guide roller (10). A chain (16) is arranged between the driven sprocket (15) and the driving sprocket (17). The three-roller centering device for the rolling mill adapts the steel pipes with different specifications and reduces the operation cost of equipment.
Description
Technical field
The invention belongs to metallurgy industry seamless steel tube production field, be specifically related to the three-roller centring device that foreground centering of a kind of milling train and pre-rotation or backstage are used.
Background technology
The production technology of existing seamless steel pipe is diversity, and the hollow billet after the perforation can adopt different rolling mill practices to produce seamless steel pipe through different pipe mills.Steel pipe is rolling must the guiding to steel pipe on skew rolling mill, guarantees rolling stability and improves the back precision of rolling of steel pipe.The guider that uses on the existing skew rolling mill has L type guide groove, long guide roller structure, fixing guide groove etc.L type guide groove is in the operation of rolling, and poor to the steel pipe guiding, rolling stability is poor, changes the specification inconvenience, needs a large amount of replacing parts.The long guide roller structure is in the operation of rolling, and the distribution of three guide rollers is five equilibrium not, can not be fit to the rolled steel tube of different size simultaneously.Fixedly guide groove is in rolling, can not be with the steel pipe envelope, and change the specification inconvenience, need a large amount of replacing parts.Also there is the ill problem of steel pipe of nipping simultaneously.
Summary of the invention
The invention provides a kind of milling train three-roller centring device, solved the steel pipe that can not adapt to all size and the ill problem of steel pipe of nipping of the guider existence of using on the existing skew rolling mill.
The present invention overcomes the above problems by following scheme:
A kind of milling train three-roller centring device, comprise frame, a side of frame fixedly install respectively on guide roller drive cylinder and lower steering roll drives cylinder, on frame, be hinged with L shaped swing arm respectively, swing arm of T shape and inverted V-shaped swing arm, the place is provided with the hinge hinged with frame at the L of L shaped swing arm drift angle, one end of L shaped swing arm is provided with guide roller, between the other end of L shaped swing arm and frame, be provided with first adjusting pad that to regulate its amplitude of fluctuation, the output shaft of last guide roller driving cylinder and the L drift angle place of L shaped swing arm are hinged by bearing pin, transverse arm centre in the swing arm of T shape is provided with the hinge hinged with frame, between the bottom of T shape swing arm and frame, be provided with second adjusting pad that to regulate its amplitude of fluctuation, the output shaft of lower steering roll driving cylinder and the bottom of T shape swing arm are hinged by bearing pin, end at the transverse arm of T shape swing arm is provided with the bottom left guide roller, the other end of the transverse arm of T shape swing arm is hinged by an end of bearing pin and pull bar, the other end of pull bar is hinged by an end of bearing pin and inverted V-shaped swing arm, the other end of inverted V-shaped swing arm is provided with the bottom right guide roller, is provided with the hinge hinged with frame at the place, V-arrangement summit of inverted V-shaped swing arm; Be provided with the hinge bearing at the two ends of described hinge, the hinge bearing fixing is arranged on the frame, one end of hinge and the output shaft of CD-ROM drive motor link together, hinge is provided with drive sprocket, in the two T shape swing arms that are oppositely arranged, be provided with the installation bearing of bottom left guide roller, the axle at bottom left guide roller two ends is separately positioned on to be installed in the bearing, and the axle of bottom left guide roller one end is provided with driven sprocket, is provided with chain between driven sprocket and drive sprocket.
When being in the guiding duty, last guide roller, bottom left guide roller and bottom right guide roller are formed equilateral triangle.
The invention solves in the operation of rolling, to the guiding of steel pipe well, the rolling stability height adapts to the different size steel pipe, has reduced the operating cost of equipment.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the structural representation of side-looking direction of the present invention
Fig. 3 is the structural representation that makes the mechanism of bottom left guide roller 10 pre-rotations of the present invention.
Specific embodiment
A kind of milling train three-roller centring device, comprise frame 1, a side of frame 1 fixedly install respectively on guide roller drive cylinder 2 and lower steering roll drives cylinder 3, on frame 1, be hinged with L shaped swing arm 4 respectively, T shape swing arm 6 and inverted V-shaped swing arm 8, be provided with the hinge hinged with frame 1 at the L of L shaped swing arm 4 drift angle place, one end of L shaped swing arm 4 is provided with guide roller 9, between the other end of L shaped swing arm 4 and frame 1, be provided with first adjusting pad 5 that to regulate its amplitude of fluctuation, the output shaft of last guide roller driving cylinder 2 and the L drift angle place of L shaped swing arm 4 are hinged by bearing pin, be provided with the hinge 18 hinged in the transverse arm centre of T shape swing arm 6 with frame 1, between the bottom of T shape swing arm 6 and frame 1, be provided with second adjusting pad 7 that to regulate its amplitude of fluctuation, the output shaft of lower steering roll driving cylinder 3 and the bottom of T shape swing arm 6 are hinged by bearing pin, end at the transverse arm of T shape swing arm 6 is provided with bottom left guide roller 10, the other end of the transverse arm of T shape swing arm 6 is hinged by an end of bearing pin and pull bar 12, the other end of pull bar 12 is hinged by an end of bearing pin and inverted V-shaped swing arm 8, the other end of inverted V-shaped swing arm 8 is provided with bottom right guide roller 11, is provided with the hinge hinged with frame 1 at place, the V-arrangement summit of inverted V-shaped swing arm 8; Be provided with hinge bearing 19 at the two ends of described hinge 18, hinge axle 19 is fixedly installed on the frame 1, one end of hinge 18 and the output shaft of CD-ROM drive motor 20 link together, hinge 18 is provided with drive sprocket 17, in the two T shape swing arms 6 that are oppositely arranged, be provided with the installation bearing 13 of bottom left guide roller 10, the axle 14 at bottom left guide roller 10 two ends is separately positioned on to be installed in the bearing 13, the axle 14 of bottom left guide roller 10 1 ends is provided with driven sprocket 15, is provided with chain 16 between driven sprocket 15 and drive sprocket 17.
When being in the guiding duty, last guide roller 9, bottom left guide roller 10 and bottom right guide roller 11 are formed equilateral triangle.
When milling train is positioned at the milling train portable station with three-roller centring device, last guide roller drives the output shaft withdrawal of cylinder 2, L shaped swing arm 4 and last guide roller 9 are opened, the output shaft that lower steering roll drives cylinder 3 stretches out, driving T shape swing arm 6, pull bar 12 and inverted V-shaped swing arm 8 puts in place, the steel pipe that is rolled is after transporting equipment enters three-roller centring device, and the output shaft that last guide roller drives cylinder 2 stretches out, and drives L shaped swing arm 4 and goes up guide roller 9 closures.Hydraulic motor 20 rotations drive 10 rotations of bottom left guide roller by drive sprocket 17, chain 16, driven sprocket 15, are rolled the steel pipe pre-rotation thereby drive.Portable station pusher equipment will be rolled steel pipe and send into milling train, and hydraulic motor 20 stops.After the rolling end, lower steering roll drives the output shaft withdrawal of cylinder 3, and last guide roller drives the output shaft withdrawal of cylinder 2, and L shaped swing arm 4 and go up guide roller 9 and open is carried out the next one and circulated.Centering of milling train foreground and pre-rotation apparatus are provided.
When milling train is positioned over milling train outlet platform with three-roller centring device, the output shaft that last guide roller drives cylinder 2 stretches out, drive L shaped swing arm 4 and go up guide roller 9 closures, the output shaft that lower steering roll drives cylinder 3 stretches out, and drives T shape swing arm 6, pull bar 12 and inverted V-shaped swing arm 8 and puts in place.Be rolled steel pipe and shut out, under the guiding of three rollers centering roller arrangement, finish rolling through milling train.Last guide roller drives the output shaft withdrawal of cylinder 2, and L shaped swing arm 4 and go up guide roller 9 and open guarantees to be rolled that steel pipe is transferred to or output.After being rolled steel pipe and leaving the outlet platform, the output shaft that last guide roller drives cylinder 2 stretches out, and drives L shaped swing arm 4 and goes up guide roller 9 closures, carries out the next one and circulates.
With traditional L type guide groove, long guide roller structure, fixedly guide groove etc. relatively, three guide rollers (watt) by 120 ° of distributions, guarantee the stable guiding of any specification.Do not need a large amount of replacing parts, only need two adjusting pads are changed handled easily.When the dress guide roller, three-roller centring device is put to the milling train portable station, can carry out pre-rotation to steel pipe, has reduced rolling accident.Compare two hydraulic cylinders of traditional three-roller centring device and control separately, do not need to work in coordination, control section is simpler, and has reduced the loss of equipment, is suitable for milling train portable station and the use of outlet platform.
Claims (2)
1. milling train three-roller centring device, comprise frame (1), the last guide roller that fixedly installs respectively in a side of frame (1) drives cylinder (2) and lower steering roll driving cylinder (3), on frame (1), be hinged with L shaped swing arm (4) respectively, T shape swing arm (6) and inverted V-shaped swing arm (8), it is characterized in that, be provided with and the hinged hinge of frame (1) at the L drift angle place of L shaped swing arm (4), one end of L shaped swing arm (4) is provided with guide roller (9), between the other end of L shaped swing arm (4) and frame (1), be provided with first adjusting pad (5) that to regulate its amplitude of fluctuation, the output shaft of last guide roller driving cylinder (2) and the L drift angle place of L shaped swing arm (4) are hinged by bearing pin, transverse arm centre in T shape swing arm (6) is provided with and the hinged hinge (18) of frame (1), between the bottom of T shape swing arm (6) and frame (1), be provided with second adjusting pad (7) that to regulate its amplitude of fluctuation, the output shaft of lower steering roll driving cylinder (3) and the bottom of T shape swing arm (6) are hinged by bearing pin, end at the transverse arm of T shape swing arm (6) is provided with bottom left guide roller (10), the other end of the transverse arm of T shape swing arm (6) is hinged by an end of bearing pin and pull bar (12), the other end of pull bar (12) is hinged by an end of bearing pin and inverted V-shaped swing arm (8), the other end of inverted V-shaped swing arm (8) is provided with bottom right guide roller (11), is provided with and the hinged hinge of frame (1) at the place, V-arrangement summit of inverted V-shaped swing arm (8); The two ends of the hinge (18) that is provided with in the transverse arm centre of T shape swing arm (6) are provided with hinge bearing (19), hinge bearing (19) is fixedly installed on the frame (1), one end of the hinge (18) that the transverse arm centre of T shape swing arm (6) is provided with and the output shaft of CD-ROM drive motor (20) link together, the hinge (18) that the transverse arm centre of T shape swing arm (6) is provided with is provided with drive sprocket (17), in the two T shape swing arms (6) that are oppositely arranged, be provided with the installation bearing (13) of bottom left guide roller (10), the axle (14) at bottom left guide roller (10) two ends is separately positioned on to be installed in the bearing (13), the axle (14) of bottom left guide roller (10) one ends is provided with driven sprocket (15), is provided with chain (16) between driven sprocket (15) and drive sprocket (17).
2. milling train three-roller centring device according to claim 1 is characterized in that, when being in the guiding duty, last guide roller (9), bottom left guide roller (10) and bottom right guide roller (11) are formed equilateral triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110209727 CN102327904B (en) | 2011-07-26 | 2011-07-26 | Three-roller centering device for rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110209727 CN102327904B (en) | 2011-07-26 | 2011-07-26 | Three-roller centering device for rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102327904A CN102327904A (en) | 2012-01-25 |
| CN102327904B true CN102327904B (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110209727 Expired - Fee Related CN102327904B (en) | 2011-07-26 | 2011-07-26 | Three-roller centering device for rolling mill |
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| Country | Link |
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| CN (1) | CN102327904B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056172B (en) * | 2013-01-22 | 2014-08-13 | 湖北理工学院 | Three-roll guide device for entrance of skew rolling mill for tubes |
| CN103934290B (en) * | 2014-04-09 | 2015-11-25 | 太原重工股份有限公司 | Seamless steel pipe production and three roller guide mechanisms thereof |
| CN105750341B (en) * | 2016-04-29 | 2018-06-19 | 天津君晟科技发展有限公司 | A kind of three-roller centring device |
| CN107597848A (en) * | 2017-09-29 | 2018-01-19 | 浙江明贺钢管有限公司 | Double oil cylinder controllable type three rolls holding unit mechanisms |
| CN107520251A (en) * | 2017-09-29 | 2017-12-29 | 浙江明贺钢管有限公司 | Milling train backstage Three-roll plug steadier |
| CN107497857A (en) * | 2017-09-29 | 2017-12-22 | 浙江明贺钢管有限公司 | The related organization of Three-roll plug steadier |
| CN112412974B (en) * | 2020-12-09 | 2022-07-26 | 泰富重工制造有限公司 | Large-scale external rotation movement mechanism |
| CN113441554A (en) * | 2021-06-22 | 2021-09-28 | 厦门语璃沫贸易有限公司 | High-precision steel pipe hot rolling equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254510A (en) * | 2008-04-12 | 2008-09-03 | 太原市通泽成套设备有限公司 | Centering device of roller milling steel tube |
| CN101518782A (en) * | 2009-03-24 | 2009-09-02 | 烟台鲁宝钢管有限责任公司 | Centering roller with compact structure |
| CN201380186Y (en) * | 2008-12-24 | 2010-01-13 | 洛阳矿山机械工程设计研究院有限责任公司 | Centering roller device |
| CN201799462U (en) * | 2010-09-09 | 2011-04-20 | 无锡西姆莱斯石油专用管制造有限公司 | Three-roller centering device |
| CN202192100U (en) * | 2011-07-26 | 2012-04-18 | 太原通泽重工有限公司 | Three-roller centering device for rolling mill |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07308713A (en) * | 1994-05-19 | 1995-11-28 | Kawasaki Steel Corp | Method for coiling strip and device therefor |
| JPH07328707A (en) * | 1994-06-06 | 1995-12-19 | Nippon Steel Corp | Method for supporting hollow shell in manufacture of seamless steel tube and device therefor |
| US8561445B2 (en) * | 2008-10-21 | 2013-10-22 | Smi & Hydraulics, Inc. | Rounding system and method used in the manufacture of wind towers |
-
2011
- 2011-07-26 CN CN 201110209727 patent/CN102327904B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254510A (en) * | 2008-04-12 | 2008-09-03 | 太原市通泽成套设备有限公司 | Centering device of roller milling steel tube |
| CN201380186Y (en) * | 2008-12-24 | 2010-01-13 | 洛阳矿山机械工程设计研究院有限责任公司 | Centering roller device |
| CN101518782A (en) * | 2009-03-24 | 2009-09-02 | 烟台鲁宝钢管有限责任公司 | Centering roller with compact structure |
| CN201799462U (en) * | 2010-09-09 | 2011-04-20 | 无锡西姆莱斯石油专用管制造有限公司 | Three-roller centering device |
| CN202192100U (en) * | 2011-07-26 | 2012-04-18 | 太原通泽重工有限公司 | Three-roller centering device for rolling mill |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平7-308713A 1995.11.28 |
| JP特开平7-328707A 1995.12.19 |
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| CN102327904A (en) | 2012-01-25 |
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