CN101195125A - Three-high mill - Google Patents
Three-high mill Download PDFInfo
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- CN101195125A CN101195125A CNA2007103036857A CN200710303685A CN101195125A CN 101195125 A CN101195125 A CN 101195125A CN A2007103036857 A CNA2007103036857 A CN A2007103036857A CN 200710303685 A CN200710303685 A CN 200710303685A CN 101195125 A CN101195125 A CN 101195125A
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- 238000005096 rolling process Methods 0.000 claims abstract description 76
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000003801 milling Methods 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a three-high mill, which comprises an outer frame arranged along a rolling axis L, a plurality of rolling cores arranged in parallel in the outer frame, a transmission device for driving rolls to rotate along respective axes and a roll adjusting device, wherein the outer frame is provided with a plurality of rolling cores; each rolling machine core is provided with three radial guide grooves which are uniformly distributed along the circumference of the machine core, and the roller adjusting device is connected with a bearing seat in each guide groove through a roller sliding seat. The roller is enabled to slide along the guide groove through the roller adjusting device, so that the independent radial adjustment of the roller is realized, the distance between the rotation center line (A1, A2, A3) of the roller and the rolling axis (L) is adjusted, and the hole-shaped center line of the roller is always in the original moving radius direction in the moving process of the roller. The symmetrical pass points on the two sides of the center of the roller of the rolling mill have equal speed, and the geometric shape, the precision and the surface finish of a rolled material are improved.
Description
Technical field
The present invention relates to a kind of three-high mill, particularly relate to the three-high mill that is used for rolling seamless steel pipe or bar class.
Background technology
At present, in the seamless steel pipe continuous rolling production line, tandem rolling tube machine mainly contains two kinds, and a kind of is two traditional roller tandem mills, and the roll on the adjacent frame is 90 degree interlaced arrangement, and another kind is novel three-roller continuous rolling mill, and the roll on the adjacent frame is 60 degree interlaced arrangement.Prove theoretically and experimentally: three-high mill has more advanced manufacturability, can obtain higher rolled piece quality.
Rolling-mill housing), CN1173786C (denomination of invention: a kind of rolling-mill housing) and CN1167522C (denomination of invention: the tube rolling unit that adopts plug) disclose a kind of technical scheme Chinese patent CN1042702C (denomination of invention: with rolling machine frame of three adjustable arms with three or more adjustable arms.Three rolls are installed in respectively on the corresponding lever arm, and these lever arms can be realized rolling in three lever arm swings in the plane of horizontal and rolling axis under the effect of depressing cylinder along rotating on the pivot that is hinged on the frame.
The said structure existing problems are: because roll rotates along the lever arm pivot, make the original radial direction of depressing of roll pass disalignment, the monosymmetric pass point in roll center produces speed difference, and stocking geometry, precision, surface smoothness are relevant with the difference between the roll speed, the metal flow of this influence of rolled material, influence of rolled stability, for correct rolling be unacceptable.For overcoming this problem, patent CN1042702C (denomination of invention: adopt the position of manual adjustments lever arm pivot to compensate in technical scheme rolling-mill housing), but owing to can produce crust and deposition in the relevant range in the operation of rolling, can not always operate at an easy rate, must carry out repeatedly each swing arm pivot; And each bearing support has three or more lever arms, has six or more a plurality of bearing support simultaneously in a milling train, becomes quite long and bothers so adjust required time of all swing arm pivots and process.Patent CN1173786C (denomination of invention: a kind of rolling-mill housing) be provided with the device that roller bracket is rotated around rolling axis in the technical scheme with three or more adjustable arms, adjusting the position of swing arm pivot, but can not the radical change roll along the problem of swing arm pivot rotation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of three-high mill that is used for rolling seamless steel pipe or bar, it can solve milling train adjust between roll rotation centerline and rolling axis apart from the time, because roll rotates along the swing arm pivot, cause roll center bilateral symmetry pass spot speed inconsistent, influence the problem of stocking geometry, precision and surface smoothness.
In order to address the above problem, the technical solution adopted in the present invention provides the three-high mill that a kind of roll is radially adjusted separately, it comprises the outside framework 3, several rolling movements 30, transmission device 11,12,13 and the roller regulating device 5,6,7 that are provided with along rolling axis L, described rolling movement 30 is set up in parallel in outside framework 3, each rolling movement comprises three rolls 45,46,47, three rolls have rotation axis A1, A2, A3 separately respectively, and the angle between three axis is 60 degree; Roll in the adjacent rolling movement becomes 60 degree interlaced arrangement; The axis of rotation of roll 45,46,47 is rigidly connected with transmission device 11,12,13 respectively, and the actuator drives roll rotates along axis separately; Have three radially-directed grooves 37,38,39 on the rolling movement 30 and evenly distribute along the movement circumference; Be respectively equipped with roller sliding base 48,49,50 in the gathering sill 37,38,39; Roller regulating device 5,6,7 is fixedly installed on the outside framework 3 and its flexible end is regulated roller sliding base position in gathering sill, and roller sliding base 48,49,50 medial extremitys are connected with corresponding roll 45,46,47 in the movement by bearing block 52,53,54.Like this, by roller regulating device 5,6,7 roll 45,46,47 is slided along gathering sill, realize roll radially adjustment separately, adjust roll rotation centerline (A1, A2, A3) and the distance between rolling axis (L), and guarantee roll in the process that moves the roll pass center line all the time on original mobile radial direction.
As preferred version of the present invention, the outside framework 3 of described three roller mills comprises milling train inlet frame 61, milling train outlet frame 62, several closed annular slabs 4, several pull bars 63 and two guide rails parallel with rolling axis L 20,21; Annular slab 4 is set in the outside of each rolling movement 30, and is fixed together by several pull bar 63 string dresses; Guide rail 20,21 is symmetricly set on rolling axis L both sides, respectively with inboard the fixedlying connected of milling train inlet frame 61 with milling train outlet frame 62; The both sides of rolling movement 30 bottoms are respectively arranged with the attached seat 35 and 36 of guide rail, and its lower surface is separately installed with roller 42 and 43, and is stuck on guide rail 20 and 21, and rolling movement 30 can be moved axially along rolling axis L; The upper surface of the attached seat 35 and 36 of guide rail is respectively equipped with locating piece 40,41; Have locating slot on the outside framework 3 with on the opposite face of locating piece 40,41, locating slot is identical with the cross section of locating piece 40,41; The below of the attached seat 35 and 36 of guide rail is respectively equipped with hydraulic cylinder 14,15, and attached 35 lower surface with 36 of the external part of hydraulic cylinder piston rod and guide rail contacts; Hydraulic cylinder upwards promotes from the below of contiguous block 35 and 36 with movement 30, and the locating piece 40,41 on contiguous block 35 and 36 is embedded in the locating slot of outside framework 3 correspondence positions, realizes the location of the vertical and horizontal direction of movement 30; Also be provided with clamping device 17 on the milling train outlet frame 62, this clamping device can be applied with along the thrust of rolling axis L, makes all movements 30 near milling train inlet frame 61.
As the present invention further optimization scheme, described three rolls 45,46,47 drive separately.
As further again preferred version of the present invention, described each movement 30 also comprises three alignment pins 51, described roller sliding base 48,49, have slotted hole 33 on 50 the sidewall, alignment pin 51 puts in roller sliding base 48,49 respectively, in the 50 sidewall slotted holes 33, realize the location of roller sliding base in gathering sill.Roll 45,46,47 and roller sliding base 48,49,50 can radially from movement 30, shift out.
As further preferred version of the present invention, roller sliding base 48,49, the 50 outboard ends cross section vertical with rolling axis L in the described movement 30 is I-shape construction; The cross section that roller regulating device 5,6,7 tailpieces of the piston rod and rolling axis L are vertical is two relative interior crotch structures, and with roller sliding base 48,49, the I-shaped structure on 50 is interlocked.By roller regulating device 5,6,7 breaker roll slides 48,49,50 adjust like this.Each movement 30 can be packed into from outside framework 3 and shifts out along the guide rail parallel with rolling axis L 15,16, crotch 18 on the roller regulating device 5,6,7 and roller sliding base 48,49, the direction of the I-groove on 50 is parallel with rolling axis (L), movement 30 pack into and the process that shifts out in, crotch 18 can be connected and throw off naturally with the I shape groove.
As further preferred version of the present invention,, described movement 30 also comprises several adjustment pads 65, roller sliding base 48,49,50 is fixedly connected by bolt draw bar with bearing block 52,53,54, adjusts pad 65 and place roller sliding base 48 respectively, 49,50 with bearing block 52,53, between 54.Realize roll reconditioning front and back pass unanimity, the stocking of processing same size by the pad adjustment.
Stocking is rolled during by several movement, radially is applied to roll 45,46, roll-force on 47 is by bearing block 52,53,54 are sent on the corresponding roller sliding base 48,49,50, then, by roller regulating device 5,6,7 piston rod 5b, 6b, 7b passes to fixed part cylinder body 5a with roll-force, 6a, on the 7a, this roll-force passes on the external support frame 3 at last.
When stocking passes through milling train, breaker roll 45,46,47 effects are along the reverse reaction force of rolling axis L, by bearing block 52,53,54 pass on the end wall 31 of movement 30, end wall 31 and attached seat 34,35,36 rigidly fix together, and attached seat 34,35 between the adjacent movement 30, the 36th, bear against mutually together, therefore, axial roll-force is transmitted to inlet from outlet along rolling axis L by attached seat, acts at last on the milling train inlet frame 61.External support frame 3 has a columned solid, helps the rolling power is distributed to whole body.As seen by such structural design, axial rolling force and radial rolling power all can be delivered on the external support frame 3.30 of movements play back up roll, and its mechanism can design lightly, realize moving axially and changing of movement 30 easily.
This three-high mill, adjusting roll rotation centerline (A1, A2, A3) and between rolling axis (L) apart from the time, roll 45,46,47 can only radially be adjusted along gathering sill, roll center bilateral symmetry pass spot speed is consistent, has improved stocking geometry, precision and surface smoothness, obtain higher-quality rolled piece.And, the hydraulic pressure guiding mechanism of one, compact conformation, easy maintenance; The movement good rigidly that employing is formed by intensive aspect, the welding of solid contiguous block; For the roll of reconditioning again after the wearing and tearing, can realize pass unanimity before and after the reconditioning, the stocking of processing same size by the pad adjustment.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of described rolling movement 30;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the structural representation of described roller regulating device;
Fig. 5 is that described adjustment pad places annexation schematic diagram between roller sliding base and the bearing block;
Fig. 6 is roller of the present invention and rail engaging structure enlarged drawing.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the present invention includes outside framework 3, several rolling movements 30, transmission device 11,12,13 and a roller regulating device 5,6,7 that is provided with along rolling axis L, described rolling movement 30 is set up in parallel in outside framework 3, and coaxial line, and movement 30 its structures are essentially a flat frame, comprise two end walls 31, and connect two end walls rigidly by three attached seats 34,35,36, wherein form a centre bore 32, constitute the passage of tubing to be processed; Three attached seat 34,35,36 triangularities arrange, and this triangle is symmetry with respect to the vertical direction by rolling axis L basically, and the spacing of attached seat 34,35,36 is enough big, so that roller sliding base 48,49,50 can be contained in wherein.Each rolling movement 30 comprises that also 45,46,47, three rolls of three rolls have rotation axis A1, A2, A3 separately respectively, and the angle between three axis is 60 degree; Roll in the adjacent rolling movement becomes 60 degree interlaced arrangement; The axis of rotation of roll 45,46,47 is rigidly connected with transmission device 11,12,13 respectively, and the actuator drives roll rotates along axis separately; Have three radially-directed grooves 37,38,39 on the rolling movement 30 and evenly distribute along the movement circumference; Be respectively equipped with roller sliding base 48,49,50 in the gathering sill 37,38,39; Roller regulating device 5,6,7 is fixedly installed on the outside framework 3 and its flexible end is regulated roller sliding base position in gathering sill, and roller sliding base 48,49,50 medial extremitys are connected with corresponding roll 45,46,47 in the movement by bearing block 52,53,54.Like this, by roller regulating device 5,6,7 roll 45,46,47 is slided along gathering sill, realize roll radially adjustment separately, adjust roll rotation centerline (A1, A2, A3) and the distance between rolling axis (L), and guarantee roll in the process that moves the roll pass center line all the time on original mobile radial direction.
Preferably, the outside framework 3 of described three roller mills comprises milling train inlet frame 61, milling train outlet frame 62, several closed annular slabs 4, several pull bars 63 and two guide rails parallel with rolling axis L 20,21; Annular slab 4 is set in the outside of each rolling movement 30, and is fixed together by several pull bar 63 string dresses; Guide rail 20,21 is symmetricly set on rolling axis L both sides, respectively with inboard the fixedlying connected of milling train inlet frame 61 with milling train outlet frame 62; As shown in Figure 6, the both sides of rolling movement 30 bottoms are respectively arranged with the attached seat 35 and 36 of guide rail, and its lower surface is separately installed with roller 42 and 43, can walk on guide rail 20 and 21, and rolling movement 30 can be moved axially along rolling axis L; The upper surface of the attached seat 35 and 36 of guide rail is respectively equipped with locating piece 40,41; Have locating slot on the outside framework 3 with on the opposite face of locating piece 40,41, locating slot is identical with the cross section of locating piece 40,41; The below of the attached seat 35 and 36 of guide rail is respectively equipped with hydraulic cylinder 14,15, and attached 35 lower surface with 36 of the external part of hydraulic cylinder piston rod and guide rail contacts; Hydraulic cylinder upwards promotes movement 30 from the below of the attached seat of guide rail 35 and 36, and the locating piece 40,41 on the attached seat 35 and 36 of guide rail is embedded in the locating slot of outside framework 3 correspondence positions, realizes the location of the vertical and horizontal direction of movement 30; A plurality of movements 30 are placed in the outside framework 3 as rolling assembly, bear against by the attached seat 35 and 36 of guide rail each other, on milling train outlet frame 62, clamping device 17 is installed, can be applied with along the thrust of rolling axis L, make all movements 30 near milling train inlet frame 61, realize the fixing of movement 30 rolling axis directions; When movement 30 shifts out outside framework 3, the contiguous block 35 of movement 30 and 36 on hook is arranged, movement 30 interconnects by hook, thereby is drawn together and move towards the outlet along guide rail 15 and 16.
Further preferably, described three rolls 45,46,47 drive separately.
Again further preferably, described each movement 30 also comprises three alignment pins 51, roller sliding base 48, have slotted hole 33 on 49,50 the sidewall, alignment pin 51 puts in roller sliding base 48 respectively, in 49, the 50 sidewall slotted holes 33, limit and roller sliding base 48,49,50 rolls 45,46,47 that link to each other are along gathering sill 37 in the movement 30,38,39 extreme positions that radially slide.
Still more preferably, as shown in Figure 4, described roller sliding base 48,49, the 50 outboard ends cross section vertical with rolling axis L is I-shape construction; Roller regulating device the 5,6, the 7th is combined in the hydraulic pressure guiding mechanism of one, the cross section that tailpiece of the piston rod and rolling axis L are vertical is two relative interior crotch structures 18, and with roller sliding base 48,49, I-shaped structure on 50 interlocks to merge and eliminates the gap, with balance roll gross weight (weight that comprises roll, bearing block, adjustment slide), thereby guarantees roller regulating device 5,6,7 predetermined contact condition.Piston rod 5b in the roller regulating device 5,6,7,6b, 7b radially act on roller sliding base 48,49,50 respectively accordingly, after movement is in the operating position, keep the rotation of a roll and the distance between rolling axis L according to predetermined adjustment parameter.Realize the adjustment of breaker roll slide 48,49,50 like this by roller regulating device 5,6,7.
One go on foot preferably, as shown in Figure 5, described movement 30 also comprises several adjustment pads 65, roller sliding base 48,49 more again, 50 is fixedly connected by bolt draw bar with bearing block 52,53,54, adjusts pad 65 and place roller sliding base 48 respectively, 49,50 with bearing block 52,53, between 54.Realize roll reconditioning front and back pass unanimity, the stocking of processing same size by the pad adjustment.
More than about three-high mill of the present invention, only in order to the explanation the present invention and and the described technical scheme of unrestricted present embodiment.Those of ordinary skill in the art makes amendment to the present invention or is equal to replacement, to reach identical technique effect, uses needs as long as satisfy, all in protection scope of the present invention.
Claims (8)
1. three-high mill, comprise outside framework (3), several rolling movements (30), transmission device (11,12,13) and a roller regulating device (5,6,7) that is provided with along rolling axis (L), described rolling movement (30) is set up in parallel in outside framework (3), each rolling movement comprises three rolls (45,46,47), three rolls have rotation axis (A1, A2, A3) separately respectively, and the angle between three axis is 60 degree; Roll in the adjacent rolling movement becomes 60 degree interlaced arrangement; The axis of rotation of roll (45,46,47) is rigidly connected with transmission device (11,12,13) respectively, and the actuator drives roll rotates along axis separately; It is characterized in that:
Have three radially-directed grooves (37,38,39) on the described rolling movement (30) and evenly distribute along the movement circumference; Be respectively equipped with roller sliding base (48,49,50) in the gathering sill (37,38,39), described roller regulating device (5,6,7) is fixedly installed on last and its flexible end adjusting roller sliding base position in gathering sill of outside framework (3), roller sliding base (48,49,50) medial extremity is by bearing block (52,53,54) be connected with corresponding roll (45,46,47) in the movement.
2. three-high mill according to claim 1 is characterized in that described roller sliding base (48,49,50) the outboard end cross section vertical with rolling axis (L) is I-shape construction; The cross section that described roller regulating device (5,6,7) tailpiece of the piston rod and rolling axis L are vertical is two relative interior crotch structures, and is interlocked with I-shaped structure on the roller sliding base (48,49,50).
3. three-high mill according to claim 1 and 2 is characterized in that described outside framework 3 comprises milling train inlet frame (61), milling train outlet frame (62), several closed annular slabs (4), several pull bars (63) and two guide rails parallel with rolling axis (L) (20,21); Described annular slab (4) is set in the outside of each rolling movement (30), and is fixed together by several pull bars (63) string dress; Guide rail (20,21) is symmetricly set on rolling axis (L) both sides, fixedlys connected with milling train inlet frame (61) and the inboard of milling train outlet frame (62) respectively; The both sides of described rolling movement (30) bottom are respectively arranged with the attached seat of guide rail (35,36), and its lower surface is separately installed with roller (42,43), can go up walking at guide rail (20,21).
4. three-high mill according to claim 3 is characterized in that the upper surface of the attached seat of described guide rail (35,36) is respectively equipped with locating piece (40,41); Outside framework (3) upward and on the opposite face of described locating piece (40,41) has locating slot, and locating slot is identical with the cross section of locating piece (40,41); The below of the attached seat of guide rail (35,36) is respectively equipped with hydraulic cylinder (14,15), and the external part of hydraulic cylinder piston rod contacts with the lower surface of the attached seat of guide rail (35,36).
5. three-high mill according to claim 3, it is characterized in that described milling train outlet frame (62) is provided with clamping device (17), this clamping device can be applied with along the thrust of rolling axis (L), makes all movements (30) near milling train inlet frame (61).
6. three-high mill according to claim 1 is characterized in that described three rolls (45,46,47) drive separately.
7. three-high mill according to claim 1, it is characterized in that described each movement (30) also comprises three alignment pins (51), described roller sliding base (48,49,50) have slotted hole (33) on the sidewall, alignment pin (51) puts in respectively in roller sliding base (48,49,50) the sidewall slotted holes (33).
8. three-high mill according to claim 1, it is characterized in that described movement (30) also comprises several adjustment pads (65), described roller sliding base (48,49,50) with bearing block (52,53,54) fixedly connected by bolt draw bar, adjust pad (65) and place roller sliding base (48 respectively, 49,50) with bearing block (52,53,54) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710303685A CN100589893C (en) | 2007-12-20 | 2007-12-20 | Three-high mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710303685A CN100589893C (en) | 2007-12-20 | 2007-12-20 | Three-high mill |
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| Publication Number | Publication Date |
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| CN101195125A true CN101195125A (en) | 2008-06-11 |
| CN100589893C CN100589893C (en) | 2010-02-17 |
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| CN200710303685A Active CN100589893C (en) | 2007-12-20 | 2007-12-20 | Three-high mill |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618484A (en) * | 2016-03-28 | 2016-06-01 | 天津商业大学 | Four-roll reducing mill of high-precision seamless steel pipe |
| CN105764621A (en) * | 2013-11-08 | 2016-07-13 | 丹尼尔和科菲森梅克尼齐有限公司 | Three-roll rolling mill stand with side change with respect to the rolling line |
| CN107159716A (en) * | 2017-07-19 | 2017-09-15 | 河北工程大学 | A kind of radially adjustable y-type rolling mill |
| CN109719240A (en) * | 2018-12-27 | 2019-05-07 | 宁波大学 | A kind of shaft forgings processing roller trio skew rolling device |
| CN109967526A (en) * | 2019-04-28 | 2019-07-05 | 广东奥基德信机电有限公司 | A kind of multiaxis flexible roll forming assembly line |
| CN113714291A (en) * | 2020-05-26 | 2021-11-30 | 德国考科斯技术有限公司 | Rolling stand, rolling block and method for correcting pass in rolling stand |
| CN113714292A (en) * | 2020-05-26 | 2021-11-30 | 德国考科斯技术有限公司 | Rolling block in a rolling mill train |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1254864B (en) * | 1992-04-15 | 1995-10-11 | Filippo Cattaneo | CONTINUOUS ROLLING MACHINE FOR SEAMLESS-SPINDLE PIPES AND LAMINATION UNIT WITH THREE OR MORE COMMANDED AND ADJUSTABLE ROLLS |
| IT1279085B1 (en) * | 1995-11-29 | 1997-12-04 | Innocenti Eng Spa | UNIT FOR LAMINATION FOR SPINDLE TUBES |
| IT1298750B1 (en) * | 1998-03-18 | 2000-02-02 | Demag Italimpianti Spa | ROLLING MILL WITH OSCILLATING ARMS, INTENDED IN PARTICULAR BUT NOT EXCLUSIVELY FOR THE LAMINATION OF SEAMLESS PIPES |
| CN201135993Y (en) * | 2007-12-20 | 2008-10-22 | 中冶京诚工程技术有限公司 | Three-high mill |
-
2007
- 2007-12-20 CN CN200710303685A patent/CN100589893C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764621A (en) * | 2013-11-08 | 2016-07-13 | 丹尼尔和科菲森梅克尼齐有限公司 | Three-roll rolling mill stand with side change with respect to the rolling line |
| CN105618484A (en) * | 2016-03-28 | 2016-06-01 | 天津商业大学 | Four-roll reducing mill of high-precision seamless steel pipe |
| CN107159716A (en) * | 2017-07-19 | 2017-09-15 | 河北工程大学 | A kind of radially adjustable y-type rolling mill |
| CN109719240A (en) * | 2018-12-27 | 2019-05-07 | 宁波大学 | A kind of shaft forgings processing roller trio skew rolling device |
| CN109967526A (en) * | 2019-04-28 | 2019-07-05 | 广东奥基德信机电有限公司 | A kind of multiaxis flexible roll forming assembly line |
| CN109967526B (en) * | 2019-04-28 | 2024-05-14 | 广东奥基德信机电有限公司 | Multi-shaft variable-section roll bending forming assembly line |
| CN113714291A (en) * | 2020-05-26 | 2021-11-30 | 德国考科斯技术有限公司 | Rolling stand, rolling block and method for correcting pass in rolling stand |
| CN113714292A (en) * | 2020-05-26 | 2021-11-30 | 德国考科斯技术有限公司 | Rolling block in a rolling mill train |
| CN113714291B (en) * | 2020-05-26 | 2023-11-03 | 德国考科斯技术有限公司 | Rolling stand, rolling block and method for correcting hole pattern in rolling stand |
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| Publication number | Publication date |
|---|---|
| CN100589893C (en) | 2010-02-17 |
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