CN202192100U - Three-roller centering device for rolling mill - Google Patents
Three-roller centering device for rolling mill Download PDFInfo
- Publication number
- CN202192100U CN202192100U CN2011202653841U CN201120265384U CN202192100U CN 202192100 U CN202192100 U CN 202192100U CN 2011202653841 U CN2011202653841 U CN 2011202653841U CN 201120265384 U CN201120265384 U CN 201120265384U CN 202192100 U CN202192100 U CN 202192100U
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- China
- Prior art keywords
- swing arm
- guide roller
- shaped swing
- frame
- hinged
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- Withdrawn - After Issue
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Abstract
The utility model discloses a three-roller centering device for a rolling mill, which solves the problem that an existing guiding device is inapplicable to steel pipes in different specifications. The three-roller centering device comprises an upper guiding roller driving cylinder (2) and a lower guiding roller driving cylinder (3) which are arranged on a framework (1), an L-shaped swing arm (4), a T-shaped swing arm (6) and an inverted-V-shaped swing arm (8) are hinged on the framework (1), a first adjusting cushion (5) capable of adjusting the swing amplitude of the L-shaped swing arm (4) is disposed between the L-shaped swing arm (4) and the framework (1), and a second adjusting cushion (7) capable of adjusting the swing amplitude of the T-shaped swing arm (6) is arranged between the T-shaped swing arm (6) and the framework (1). A driving sprocket (17) is mounted on a hinged shaft (18) connected with a driving motor (20), a driven sprocket (15) is disposed on a shaft (14) at one end of a lower left guiding roller (10), and a chain (16) is arranged between the driven sprocket (15) and the driving sprocket (17). The three-roller centering device is applicable to steel pipes in different specifications, and running cost of equipment is lowered.
Description
Technical field
The invention belongs to metallurgy industry seamless steel tube production field, be specifically related to a kind of milling train foreground centering and prewhirl and change or three-roller centring device that the backstage is 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, and it is inconvenient to change specification, 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 it is inconvenient to change specification, needs 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 and use 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 through following scheme:
A kind of milling train is used three-roller centring device; Comprise frame; A side of frame fixedly install respectively on guide roller drive cylinder and lower steering roll driving cylinder; On frame, be hinged with L shaped swing arm, the swing arm of T shape and inverted V-shaped swing arm respectively, the place is provided with the hinge hinged with frame at the L of L shaped swing arm drift angle, and an 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 of its amplitude of fluctuation of scalable; It is hinged that the output shaft that last guide roller drives cylinder and the L drift angle place of L shaped swing arm pass through bearing pin, is provided with the hinge hinged with frame in the transverse arm centre of T shape swing arm, between the bottom of T shape swing arm and frame, is provided with second adjusting pad of its amplitude of fluctuation of scalable; The output shaft of lower steering roll driving cylinder and the bottom of T shape swing arm are hinged through bearing pin; End at the transverse arm of T shape swing arm is provided with left guide roller down, and the other end of the transverse arm of T shape swing arm is hinged with an end of pull bar through bearing pin, and it is hinged that the other end of pull bar passes through an end of bearing pin and inverted V-shaped swing arm; The other end of inverted V-shaped swing arm is provided with down 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, and an end of hinge and the output shaft of CD-ROM drive motor link together, and hinge is provided with drive sprocket; In the two T shape swing arms that are oppositely arranged, be provided with the installation bearing of left guide roller down; The axle at left guide roller two ends is separately positioned on and installs in the bearing down, and the axle of left guide roller one end is provided with driven sprocket down, between driven sprocket and drive sprocket, is provided with chain.
When being in the guiding duty, last guide roller, following left guide roller and down right guide roller are formed equilateral triangle.
The invention solves in the operation of rolling, to the guiding of steel pipe well, rolling stability is high, 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 of the mechanism that left guide roller 10 is prewhirled change of the present invention.
Specific embodiment
A kind of milling train is used three-roller centring device; Comprise frame 1; A side of frame 1 fixedly install respectively on guide roller drive cylinder 2 and drive cylinder 3 with lower steering roll; On frame 1, be hinged with L shaped swing arm 4, T shape swing arm 6 and inverted V-shaped swing arm 8 respectively, be provided with the hinge hinged with frame 1 at the L of L shaped swing arm 4 drift angle place, an 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 of its amplitude of fluctuation of scalable; It is hinged that the output shaft that last guide roller drives cylinder 2 and the L drift angle place of L shaped swing arm 4 pass through bearing pin, is provided with the hinge 18 hinged with frame 1 in the transverse arm centre of T shape swing arm 6, between the bottom of T shape swing arm 6 and frame 1, is provided with second adjusting pad 7 of its amplitude of fluctuation of scalable; The output shaft of lower steering roll driving cylinder 3 and the bottom of T shape swing arm 6 are hinged through bearing pin; End at the transverse arm of T shape swing arm 6 is provided with left guide roller 10 down, and the other end of the transverse arm of T shape swing arm 6 is hinged with an end of pull bar 12 through bearing pin, and it is hinged that the other end of pull bar 12 passes through 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 down 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, is provided with the installation bearing 13 of left guide roller 10 down, and the axle 14 at following left guide roller 10 two ends is separately positioned on to be installed in the bearing 13; The axle 14 of left guide roller 10 1 ends is provided with driven sprocket 15 down, between driven sprocket 15 and drive sprocket 17, is provided with chain 16.
When being in guiding during duty, last guide roller 9, left guide roller 10 and down right guide roller 11 composition equilateral triangles down.
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 go up guide roller 9 and open, and 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 gets into 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 rotation drives down left guide roller 10 rotations through drive sprocket 17, chain 16, driven sprocket 15, is rolled the steel pipe commentaries on classics of prewhirling 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, accomplish 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.During guide roller, three-roller centring device is put to the milling train portable station at dress, can reduce rolling accident to the steel pipe commentaries on classics of prewhirling.Compare two hydraulic cylinders of traditional three-roller centring device and control separately, need not work in coordination, control section is simpler, and has reduced the loss of equipment, is suitable for the milling train portable station and uses with the outlet platform.
Claims (2)
1. a milling train is used 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), T shape swing arm (6) and inverted V-shaped swing arm (8) respectively; It is characterized in that be provided with at the L drift angle place of L shaped swing arm (4) and the hinged hinge of frame (1), an 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) of its amplitude of fluctuation of scalable; It is hinged through bearing pin with the L drift angle place of L shaped swing arm (4) that last guide roller drives the output shaft of cylinder (2), is provided with and the hinged hinge (18) of frame (1) in the transverse arm centre of T shape swing arm (6), between the bottom of T shape swing arm (6) and frame (1), is provided with second adjusting pad (7) of its amplitude of fluctuation of scalable; The output shaft of lower steering roll driving cylinder (3) and the bottom of T shape swing arm (6) are hinged through bearing pin; End at the transverse arm of T shape swing arm (6) is provided with left guide roller (10) down, and the other end of the transverse arm of T shape swing arm (6) is hinged with an end of pull bar (12) through bearing pin, and it is hinged that the other end of pull bar (12) passes through 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 down 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); Be provided with hinge bearing (19) at the two ends of described hinge (18); Hinge bearing (19) is fixedly installed on the frame (1); The output shaft of one end of hinge (18) and CD-ROM drive motor (20) links 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 left guide roller (10) down; The axle (14) at left guide roller (10) two ends is separately positioned on and installs in the bearing (13) down, and the axle (14) of left guide roller (10) one ends is provided with driven sprocket (15) down, between driven sprocket (15) and drive sprocket (17), is provided with chain (16).
2. milling train according to claim 1 is used three-roller centring device, it is characterized in that, when being in the guiding duty, last guide roller (9), following left guide roller (10) and following right guide roller (11) are formed equilateral triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202653841U CN202192100U (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 |
|---|---|---|---|
| CN2011202653841U CN202192100U (en) | 2011-07-26 | 2011-07-26 | Three-roller centering device for rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202192100U true CN202192100U (en) | 2012-04-18 |
Family
ID=45947031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202653841U Withdrawn - After Issue CN202192100U (en) | 2011-07-26 | 2011-07-26 | Three-roller centering device for rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202192100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327904A (en) * | 2011-07-26 | 2012-01-25 | 太原通泽重工有限公司 | Three-roller centering device for rolling mill |
| CN109500102A (en) * | 2018-11-13 | 2019-03-22 | 四川易尚天交实业有限公司 | A kind of adjustable rolling guide of milling train |
-
2011
- 2011-07-26 CN CN2011202653841U patent/CN202192100U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327904A (en) * | 2011-07-26 | 2012-01-25 | 太原通泽重工有限公司 | Three-roller centering device for rolling mill |
| CN102327904B (en) * | 2011-07-26 | 2013-07-24 | 太原通泽重工有限公司 | Three-roller centering device for rolling mill |
| CN109500102A (en) * | 2018-11-13 | 2019-03-22 | 四川易尚天交实业有限公司 | A kind of adjustable rolling guide of milling train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120418 Effective date of abandoning: 20130724 |
|
| RGAV | Abandon patent right to avoid regrant |