CN102284488B - Symmetric hole-shaped curve cycle roll - Google Patents
Symmetric hole-shaped curve cycle roll Download PDFInfo
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- CN102284488B CN102284488B CN 201110207026 CN201110207026A CN102284488B CN 102284488 B CN102284488 B CN 102284488B CN 201110207026 CN201110207026 CN 201110207026 CN 201110207026 A CN201110207026 A CN 201110207026A CN 102284488 B CN102284488 B CN 102284488B
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- 238000005096 rolling process Methods 0.000 claims abstract description 44
- 238000005242 forging Methods 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 206010006895 Cachexia Diseases 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
- 208000016318 wasting Diseases 0.000 description 1
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Abstract
The invention discloses a symmetric hole-shaped curve cycle roll which comprises a roll (1); a hole shape (2) is arranged on the peripheral surface of the roll (1); the hole shape (2) is intercepted by a plane which is vertical to the axis of the roll (1) and is in a shape of a hole-shaped curve; the hole-shaped curve is sequentially divided into a forge rolled section, a finish rolled section, a final rolled section and an air rolled section along a circumferential direction; the curve is symmetric with the plane which passes through the axis of the roll (1) and the middle point of the air rolled section; the radius of the hole shape is continuously reduced in the forge rolled section, remains unchanged in the finish rolled section, is continuously increased in the final rolled section and remains unchanged in the air rolled section, and an angular aperture (11) is continuously reduced in the forge rolled section, remains unchanged in the finish rolled section, is continuously increased in the final rolled section and remains unchanged in the air rolled section. The symmetric hole-shaped curve cycle roll has the advantages that: the hole-shaped curve is in a symmetric structure; when the forge rolled section is seriously worn and needs to be replaced, the roll only needs to change to another direction and the final rolled section is used for forge rolling; and the service life of the symmetric hole-shaped curve cycle roll is 1.3 to 1.5 times of that of an ordinary roll, and the installation is convenient.
Description
Technical field
The present invention relates to a kind of roll of rolling seamless steel pipe, particularly a kind of roller with symmetric hole-shaped curve cycle.
Background technology
Periodical roll is most important warp tool in the pilger mill unit, need at work two roll pairings to use and opposite direction rotating, in the roller rotational process in one week, to realize the forging rolling to hollow billet, finish rolling, finish to gauge, take off pipe four procedures, roll vertically the cross section the pass curve by circular arc and with it tangent two straight lines consist of, the most serious place of roll wear is the forging rolling band during pilger mill tube rolling, the periodical roll that adopts at present is when the forging rolling belt wear is serious, just have to change whole roll, increased the production cost of steel pipe, cause simultaneously a large amount of wastings of resources, and the periodical roll that adopts at present has directionality, when installing lower two rolls, to confirm the direction of roll, to reach the requirement that cooperatively interacts, show slightly trouble.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide a kind of rational in infrastructure, economize on resources, the convenient roller with symmetric hole-shaped curve cycle of installing.
Purpose of the present invention is achieved through the following technical solutions: roller with symmetric hole-shaped curve cycle, it comprises roll, be processed with pass at the roll side face, pass is shaped as a hole shape curve by what the plane perpendicular to roll axis intercepted, the hole shape curve is along circumferentially being divided into successively the A section, the B section, the C section, the D section, the E section, the F section, and each section is clockwise by the direction of origin-to-destination, wherein the A section is the forging rolling section, the B section is the finish rolling section, the C section is the finish to gauge section, the D section, the E section, the F section is the shallow pass section, curve is about crossing the plane symmetry of roll axis and shallow pass section mid point, the shape that pass is intercepted by the plane of crossing roll axis is made of the tangent straight line of circular arc and two sections and circular arc, the angle of two sections straight lines is angular aperture, the radius of circular arc is the pass radius, the pass radius begins to diminish continuously to forging rolling section end point from shallow pass section F section starting point, in the finish rolling section, keep least radius constant, begin to become continuously large to shallow pass section D section end point from finish to gauge section starting point, keep maximum radius constant in shallow pass section E section, angular aperture begins to reduce continuously to forging rolling section end point from forging rolling section starting point, in the finish rolling section, keep the minimal openings angle constant, begin to become continuously large to finish to gauge section end point from finish to gauge section starting point, in shallow pass section E section, keep the maximum open angle constant.
Described hole shape curve, the central angle of its A section is 92 °～102 °, the central angle of B section is 67 °～77 °, the central angle of C section is 92 °～102 °, the central angle of D section is 32 °～42 °, the central angle of E section is 15 °～25 °, and the central angle of F section is 32 °～42 °, and A section, B section, C section, D section, E section, the corresponding central angle sum of F section are 360 °.
The axial two ends of described roll respectively are provided with a rotating shaft concentric with roll, and the end of rotating shaft is provided with chuck, and chuck comprises two locating surfaces that are parallel to each other.
The plane of symmetry of described hole shape curve and the angle of locating surface are 0 ° or 90 °.
The present invention has the following advantages:
1, hole shape curve of the present invention is symmetrical structure, and namely the central angle of A section equates with the central angle angle of C section, the central angle of D section, equates with the central angle angle of F section.In use, when forging rolling section serious wear need to be changed, this does not have the finish to gauge segment base wearing and tearing or weares and teares very little, at this moment roll is changed a direction, the finish to gauge section is used for forging rolling, can the production physical dimension require relatively low steel pipe, in the actual production, the life-span of roller with symmetric hole-shaped curve cycle is 1.3～1.5 times of common roll campaign.
2, hole shape curve of the present invention is symmetrical structure, only need to confirm when mounted the mated condition of top and bottom rolls curve, need not consider the direction of roll, and when the locating surface of the plane of symmetry of hole shape curve and chuck is 0 ° or 90 °, roller with symmetric hole-shaped curve cycle is non-directional, more is convenient to install.
Description of drawings
The structural representation of Fig. 1 hole shape curve of the present invention
Fig. 2 structural representation of the present invention
Among the figure, 1-roll, 2-pass, 3-A section, 4-B section, 5-C section, 6-D section, 7-E section, 8-F section, 9-circular arc, 10-straight line, 11-angular aperture, 12-rotating shaft, 13-chuck, 14-locating surface.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples:
Embodiment 1: such as Fig. 1, Fig. 2, roller with symmetric hole-shaped curve cycle, it comprises roll 1, be processed with pass 2 at roll 1 side face, pass 2 is shaped as a hole shape curve by what the plane perpendicular to roll 1 axis intercepted, the hole shape curve is along circumferentially being divided into successively A section 3, B section 4, C section 5, D section 6, E section 7, F section 8, and each section is clockwise by the direction of origin-to-destination, wherein A section 3 is the forging rolling section, B section 4 is the finish rolling section, C section 5 is the finish to gauge section, D section 6, E section 7, F section 8 is the shallow pass section, curve is about crossing the plane symmetry of roll 1 axis and shallow pass section mid point, the shape that pass 2 is intercepted by the plane of crossing roll 1 axis is made of circular arc 9 and two sections and circular arc 9 tangent straight lines 10, the angle of two sections straight lines 10 is angular aperture 11, the radius of circular arc 9 is the pass radius, the pass radius begins to diminish continuously to forging rolling section end point from shallow pass section F section 8 starting points, in the finish rolling section, keep least radius constant, begin to become continuously large to shallow pass section D section 6 end point from finish to gauge section starting point, constant in shallow pass section E section 7 interior maintenance maximum radius, angular aperture 11 begins to reduce continuously to forging rolling section end point from forging rolling section starting point, in the finish rolling section, keep the minimal openings angle constant, begin to become continuously large to finish to gauge section end point from finish to gauge section starting point, constant at shallow pass section E section 7 interior maintenance maximum open angles.
The central angle of hole shape curve A section 3 is 97 °, and the central angle of B section 4 is 72 °, and the central angle of C section 5 is 97 °, and the central angle of D section 6 is 37 °, and the central angle of E section 7 is 20 °, and the central angle of F section 8 is 37 °.
The axial two ends of roll 1 respectively are provided with a rotating shaft 12 concentric with roll 1, and the end of rotating shaft 12 is provided with chuck 13, and chuck 13 comprises two locating surfaces that are parallel to each other 14, and the angle of the plane of symmetry of hole shape curve and locating surface 14 is 0 °.
Embodiment 2: such as Fig. 1, Fig. 2, roller with symmetric hole-shaped curve cycle, it comprises roll 1, be processed with pass 2 at roll 1 side face, pass 2 is shaped as a hole shape curve by what the plane perpendicular to roll 1 axis intercepted, the hole shape curve is along circumferentially being divided into successively A section 3, B section 4, C section 5, D section 6, E section 7, F section 8, and each section is clockwise by the direction of origin-to-destination, wherein A section 3 is the forging rolling section, B section 4 is the finish rolling section, C section 5 is the finish to gauge section, D section 6, E section 7, F section 8 is the shallow pass section, curve is about crossing the plane symmetry of roll 1 axis and shallow pass section mid point, the shape that pass 2 is intercepted by the plane of crossing roll 1 axis is made of circular arc 9 and two sections and circular arc 9 tangent straight lines 10, the angle of two sections straight lines 10 is angular aperture 11, the radius of circular arc 9 is the pass radius, the pass radius begins to diminish continuously to forging rolling section end point from shallow pass section F section 8 starting points, in the finish rolling section, keep least radius constant, begin to become continuously large to shallow pass section D section 6 end point from finish to gauge section starting point, constant in shallow pass section E section 7 interior maintenance maximum radius, angular aperture 11 begins to reduce continuously to forging rolling section end point from forging rolling section starting point, in the finish rolling section, keep the minimal openings angle constant, begin to become continuously large to finish to gauge section end point from finish to gauge section starting point, constant at shallow pass section E section 7 interior maintenance maximum open angles.
The central angle of hole shape curve A section 3 is 95 °, and the central angle of B section 4 is 76 °, and the central angle of C section 5 is 95 °, and the central angle of D section 6 is 35 °, and the central angle of E section 7 is 24 °, and the central angle of F section 8 is 35 °.
The axial two ends of roll 1 respectively are provided with a rotating shaft 12 concentric with roll 1, and the end of rotating shaft 12 is provided with chuck 13, and chuck 13 comprises two locating surfaces that are parallel to each other 14, and the angle of the plane of symmetry of hole shape curve and locating surface 14 is 90 °.
Use procedure of the present invention is as follows: be arranged symmetrically with up and down two roller with symmetric hole-shaped curve cycles, hollow billet sent in the pass that is formed by two roller with symmetric hole-shaped curve cycles process, two roller with symmetric hole-shaped curve cycle opposite direction rotatings up and down, hollow billet passes through the rolling of forging rolling section, finish rolling section, finish to gauge section successively, finish a rolling cycle, hollow billet is behind several cycles rolling, finish reducing and subtract wall processing, finally by promoting topping roll, taking off the operation of rolling that excellent operation is finished whole Zhi Gangguan; When the forging rolling section serious wear of roller with symmetric hole-shaped curve cycle need to be changed, roll is changed a direction, the finish to gauge section is used for forging rolling, the production physical dimension requires relatively low steel pipe, in the actual production, the life-span of roller with symmetric hole-shaped curve cycle is 1.3～1.5 times of common roll campaign.
Claims (4)
1. roller with symmetric hole-shaped curve cycle, it comprises roll (1), be processed with pass (2) at roll (1) side face, pass (2) is shaped as a hole shape curve by what the plane perpendicular to roll (1) axis intercepted, it is characterized in that: the hole shape curve is along circumferentially being divided into successively A section (3), B section (4), C section (5), D section (6), E section (7), F section (8), and each section is clockwise by the direction of origin-to-destination, wherein A section (3) is the forging rolling section, B section (4) is the finish rolling section, C section (5) is the finish to gauge section, D section (6), E section (7), F section (8) is the shallow pass section, curve is about crossing the plane symmetry of roll (1) axis and shallow pass section mid point, the shape that pass (2) is intercepted by the plane of crossing roll (1) axis is by circular arc (9) and two sections straight line (10) formations tangent with circular arc (9), the angle of two sections straight lines (10) is angular aperture (11), the radius of circular arc (9) is the pass radius, the pass radius begins to diminish continuously to forging rolling section end point from shallow pass section F section (8) starting point, in the finish rolling section, keep least radius constant, begin to become continuously large to shallow pass section D section (6) end point from finish to gauge section starting point, keep maximum radius constant in shallow pass section E section (7), angular aperture (11) begins to reduce continuously to forging rolling section end point from forging rolling section starting point, in the finish rolling section, keep the minimal openings angle constant, begin to become continuously large to finish to gauge section end point from finish to gauge section starting point, in shallow pass section E section (7), keep the maximum open angle constant.
2. roller with symmetric hole-shaped curve cycle according to claim 1, it is characterized in that: described hole shape curve, the central angle of its A section (3) is 92 °～102 °, the central angle of B section (4) is 67 °～77 °, the central angle of C section (5) is 92 °～102 °, the central angle of D section (6) is 32 °～42 °, the central angle of E section (7) is 15 °～25 °, the central angle of F section (8) is 32 °～42 °, and A section (3), B section (4), C section (5), D section (6), E section (7), the corresponding central angle sum of F section (8) are 360 °.
3. roller with symmetric hole-shaped curve cycle according to claim 1, it is characterized in that: the axial two ends of described roll (1) respectively are provided with a rotating shaft (12) concentric with roll (1), the end of rotating shaft (12) is provided with chuck (13), and chuck (13) comprises two locating surfaces that are parallel to each other (14).
4. roller with symmetric hole-shaped curve cycle according to claim 3, it is characterized in that: the angle of the plane of symmetry of described hole shape curve and locating surface (14) is 0 ° or 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110207026 CN102284488B (en) | 2011-07-22 | 2011-07-22 | Symmetric hole-shaped curve cycle roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110207026 CN102284488B (en) | 2011-07-22 | 2011-07-22 | Symmetric hole-shaped curve cycle roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102284488A CN102284488A (en) | 2011-12-21 |
| CN102284488B true CN102284488B (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110207026 Active CN102284488B (en) | 2011-07-22 | 2011-07-22 | Symmetric hole-shaped curve cycle roll |
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| CN112025138B (en) * | 2020-08-10 | 2021-04-16 | 燕山大学 | Online adjusting method and device for opening angle of welding seam of pipeline steel pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4221497B2 (en) * | 2003-05-20 | 2009-02-12 | 独立行政法人物質・材料研究機構 | Warm rolling method for ultra-fine grain steel |
| CN201015776Y (en) * | 2007-01-29 | 2008-02-06 | 杨连明 | Cold rolling taper pipe fitting mold |
| CN202169279U (en) * | 2011-07-22 | 2012-03-21 | 四川三洲特种钢管有限公司 | Roller with symmetric hole-shaped curve cycle |
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| CN102284488A (en) | 2011-12-21 |
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