CN102303049B - Positioning device for bearing seat of rolling mill - Google Patents
Positioning device for bearing seat of rolling mill Download PDFInfo
- Publication number
- CN102303049B CN102303049B CN2011101312007A CN201110131200A CN102303049B CN 102303049 B CN102303049 B CN 102303049B CN 2011101312007 A CN2011101312007 A CN 2011101312007A CN 201110131200 A CN201110131200 A CN 201110131200A CN 102303049 B CN102303049 B CN 102303049B
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- column
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- terrace
- rolling mill
- positioner
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/203—Balancing rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a positioning device for a bearing seat of a rolling mill, which is used for steel rolling equipment. The positioning device comprises a first bearing seat component, a vertical post and a rolling mill seat, wherein a step surface of which the top side is arranged downwards is arranged in the middle lower section of the vertical post; and a limiting mechanism which applies pressure to the bearing seat component for pre-tightening positioning and moves in the upper and lower directions is arranged between the step surface and an upward supporting surface of the rolling mill seat. The positioning device can apply effective pressure to a lower rolling mill bearing seat for pre-tightening positioning.
Description
Technical field
The present invention relates to steel rolling equipment, is exactly specifically the rack construction of milling train.
Background technology
Mostly the processing of prior art center line bar, be to adopt mill milling to form.And milling train comes minute generally can be divided into memorial archway open frame, cantilevered frame or by section bar, to be welded as the memorial archway open frame with regard to its structure, the regulation and control of roll shop building distance directly causes treating the size of rolling product, treats that the dimensional accuracy of rolling product relies on again precision and the selection of the integral rigidity of rolling-mill housing and roll, roll.At present, no matter in the milling train of memorial archway open frame, cantilevered frame, with the vertical example that is installed as of memorial archway open frame, the distortion of its above-below direction is large, be difficult to control, because step is all to adopt the bolt base part to be fixed on the bottom support bracket of memorial archway open frame, the screwdown gear of top chock normally is arranged on upper beam, like this during rolling, the memorial archway open frame all is subjected to pulling force and elongation strain at the column between bottom support bracket and upper beam in its whole length range, its anamorphic stretching amount is large; For the cantilevered frame, the deformation of its column is substantially similar.In other words, the insufficient rigidity of rolling-mill housing, the distortion of other parts in addition, the error after accumulative total is just very large, is difficult to meet the requirement of rolling season.
Name is called the patent documentation of " the backing roll body of roll is with the sheet rolling mill of hydraulic pressure hold-down devices " (publication number CN101658862A), its rolling-mill housing comprises superposed horizontal frame 10, be positioned at the frame underbeam 12-1 of bottom and be positioned between the two column 1, its overall structure can be regarded the memorial archway open frame as, and column wherein all elongation strain can occur in work Shi Qi overall length scope.
name is called the patent documentation of " composite machine frame of mill " (publication number CN2796875Y), its frame comprises, sill 1, 4 and each column 2 of connecting both, on, sill 1, 4 and column 2 between adopt bar 8 to be connected connection with nut, column 2 just is subject to the effect of compression like this, the defect of this structure is, on, sill 1, 4 and column 2 between can't meet the demands in the location perpendicular on column 2 directions, because, on, sill 1, 4 and column 2 between the pressure that provides each other, keep position perpendicular to column 2 directions and will depend on each other frictional force, this is extremely insecure, in addition, the structure self that connects of being connected with nut due to bar 8 limits, its pretightning force that provides is very limited, in a single day external force in the operation of rolling offset the pretightning force that bar 8 and nut 9 provide, may cause when serious upper and lower crossbeam 1,4 with column 2 between break away from each other, follow and be far from being rolling accuracy.
name is called the patent documentation of " the roll gap regulating system of no frame mill stand " (publication number CN1108975A), its structure comprises the left-handed thread section 22a on a top, the screw rod 12 of cylindrical section 22b in the middle of one and the right-hand thread section 22c of a bottom, adjacent first, the two bearing bracket assembly is interconnected by the identical screw rod 12 of a pair of structure, thereby the cylindrical section 22b in the middle of screw rod 12 fixes vertically and makes axle journal in the interior rotation of frame spare 28 with respect to frame spare 28, frame spare 28 itself is supported on pedestal 30, the right-hand thread section 22c of the left-handed thread section 22a on top and bottom is respectively at first, the two bearing bracket assembly is connected, in fact first, the two bearing bracket assembly is to do simultaneously to approach or disengaging movement realizes the adjusting of roll gap.The defect of this scheme is: the equal elongation strain of 12 tension masterpiece used times of the screw rod long scope of its whole bar, its poor rigidity; The lower end of screw rod 12 is sagging shape, while being subject to the shock loading of line bar direction of travel during the second roll 14 rolling on the second bearing block assembly, the bent distortion of also bending of the lower end of screw rod 12, cause the New Year operating position of first and second roll to be subjected to displacement, and has a strong impact on rolling accuracy.
Also there is no at present the targeting scheme of very good, reliable step assembly in prior art.Take the vertical working state as example, in general, usually at first consider the location of step assembly and fixing, find a positioning datum relatively easy, if and be fixed on reliably step on this positioning datum and be not subjected to the impact of external force to occur that roll beats, this technical barrier does not also solve at present.
Summary of the invention
The positioner that the purpose of this invention is to provide a kind of rolling mill bearing, this positioner can be implemented effective pressure pretension location to lower rolling mill bearing.
For achieving the above object, the present invention has adopted following technical scheme: a kind of positioner of rolling mill bearing, comprise clutch shaft bearing holder assembly, column and mill stand, the middle hypomere position of column is provided with the prone step surface of plate, forms the position-limit mechanism of the clutch shaft bearing holder assembly being implemented the above-below direction displacement of pressure pretension location between the supporting surface that this step surface and mill stand make progress.
as shown from the above technical solution, middle hypomere position at column is provided with the prone step surface of plate, space between the supporting surface that this step surface and mill stand make progress holds bearing block assembly, because the lower end of column reliably is connected with mill stand, at first allow the column tension be out of shape during assembling, be the length suitably stretcher strain thereupon between the junction of step surface and its lower end and mill stand, allowing exactly the following shaft of this step surface be under extended state and by this step surface is depressed on bearing block assembly, the size of this preload pressure is determined by the tension deflection of column.Be exactly to have avoided beating of bearing block assembly like this, only have the external impact force that is subject to when bearing block assembly to be out of shape greater than the tension of column the pretightning force that provides, beating of bearing block assembly just there will be, and the appearance of avoiding this situation adopts the present invention just can to solve smoothly, the impulse force size that occurs during according to rolling, material and the cross section of selecting column, calculate rational stretcher strain amount and just can provide suitable prefastening force.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of column;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the A-A cutaway view in Fig. 1.
The specific embodiment
Line rod sheet material adds man-hour, and the non-deformability that rolling accuracy not only depends on roll is rigidity, and the while also needs the frame of milling train to possess the reliability of the fixed structure of reliable rigidity and frame breaker roll.The present invention is proposing new and the significant scheme of effect aspect the fixed structure of rigidity of frame structure and frame breaker roll.Below illustrate.
A kind of positioner of rolling mill bearing, comprise clutch shaft bearing holder assembly 30, column 20 and mill stand 10, the middle hypomere position of column 20 is provided with the prone First terrace 21 of plate, forms the position-limit mechanism of clutch shaft bearing holder assembly 30 being implemented the above-below direction displacement of pressure pretension location between the supporting surface that this First terrace 21 and mill stand 10 make progress.
During assembling, stretching column 20 makes the length suitably stretcher strain thereupon between the junction of First terrace 21 and its lower end and mill stand 10, the shaft of this First terrace below 21 is under extended state and by this First terrace 21 and is depressed on clutch shaft bearing holder assembly 30, and the size of this preload pressure is determined by the tension deflection of column 20.Only have the external impact force that is subject to when clutch shaft bearing holder assembly 30 to be out of shape greater than the tension of column 20 pretightning force that provides, beating of clutch shaft bearing holder assembly 30 just there will be, the present invention acts on clutch shaft bearing holder assembly 30 with regard to being to provide suitable preload pressure, under the supporting role of mill stand 10, clutch shaft bearing holder assembly 30 is located reliably simultaneously.
As preferred version, as shown in Figure 1, 2, 3, the epimere of described column 20 is that cylindrical thread section 22a, stage casing are that cross section is square square column section 22b and the following hypomere 22c of square column section 22b, square column section 22b and hypomere 22c intersection form First terrace 21, the plate face level of First terrace 21 or oblique downward, preferred version is that the plate face level of First terrace 21 is downward, can provide to greatest extent and act on preload pressure on clutch shaft bearing holder assembly 30 like this, and the processing of column 20 is also very convenient.
As shown in Figure 2,3, the hypomere 22c of the First terrace of described column 20 below 21 has the pole face 23 that is parallel to each other, pole face 23 is axial vertical with roll, this hypomere 22c is positioned at the cell body 11 that the notch of mill stand 10 makes progress, the spacing that described two pole face that is parallel to each other is 23 and the groove width of cell body 11 are coincide, between the lower end of hypomere 22c and cell body 11, jointed shaft 60 is set, jointed shaft 60 is parallel with the axle core of roll.
The vallecular cavity zone of cell body 11 should be able to guarantee that the end of described column 20 inserts in it, can provide column 20 to rotate requisite spaces simultaneously.The spacing that described two pole face is 23 and the groove width of cell body 11 coincide to limit exactly column 20 roll mandrel to displacement, for first and second bearing block assembly 30,40 location provide the basis, location.
Hole is offered at the rod end position at pole face 23 places on described column 20, and hole forms hinged the cooperation with jointed shaft 60, and hole is perpendicular to the plane at pole face 23 places.Said structure can be guaranteed the reliability that coordinates and the rigidity of column 20 and mill stand 10, in other words column 20 with respect to mill stand 10 only with the axle core of jointed shaft 60 rotate may, this is the matching relationship when the dismounting roll, the free degree of other direction all is defined, and also just because of column 20, could breaker roll bearing block group be implemented location reliably after effective location.
The below of the First terrace 21 of described column 20 has one section cylinder to be positioned at the groove 31 of offering on clutch shaft bearing holder assembly 30, and both cooperations are construed as limiting clutch shaft bearing holder assembly 30 along the axially movable position-limit mechanism of roll.As shown in Figure 3, First terrace 21 is that the Central Symmetry face symmetry of the pole face 23 that is parallel to each other is arranged in pole face 23 both sides, and the Central Symmetry face of described pole face 23 is perpendicular to the axial direction of roll.The pressure that so just can guarantee to act on groove 31 ports is even and symmetrical, has avoided column 20 to be subject to Moment and buckling phenomenon occurred.
The end surface shape of described clutch shaft bearing holder assembly 30 is reversed convex type, and with described mill stand 10 on the concave regions offered be construed as limiting the position-limit mechanism that described clutch shaft bearing holder assembly 30 moves along rolling material direct of travel.This is by having realized clutch shaft bearing holder assembly 30 and coordinating of mill stand 10 location, position along rolling material direct of travel.
Said structure is exactly to have realized the displacement of clutch shaft bearing holder assembly 30 top to bottom, left and right, front and rear directions and the rotation of respective direction, thus the reliable location of having realized clutch shaft bearing holder assembly 30.
Described groove 31 be positioned at clutch shaft bearing holder assembly 30 first halves pedestal the both sides, front and back and run through the upper and lower end face of the first half, the notch of described groove 31 points to fore-and-aft direction and cross section is U-shaped, the cylinder that be positioned at groove of First terrace below 21 on the cell wall of groove 31 parallel and groove width and column 20 roll mandrel to size identical.The cooperation that so just can realize easily column 20 and groove 31 with separate.This is by the coordinate axial location that realize clutch shaft bearing holder assembly 30 of column 20 with clutch shaft bearing holder assembly 30.
Cylinder between described second step face 25 and First terrace 21 is cylinder, and this section cylinder is positioned at groove 31, and both cooperations are construed as limiting clutch shaft bearing holder assembly 30 along the axially movable position-limit mechanism of roll.This matching relationship not only can be realized reliable location, and is simultaneously also convenient for assembly, while namely facilitating column 20 to rotate in smooth lead-in groove 31 or shift out in groove 31.
The epimere of described column 20 is cylindrical thread section 22a, is provided with cylindrical section 22d between cylindrical thread section 22a and square column section 22b, and this cylindrical section 22d coordinates grafting with the hole on entablature 50.
In conjunction with shown in Figure 1, say on the whole that rolling-mill housing comprises and set up post 20, mill stand 10 and entablature 50, one end of described column 20 is hinged by jointed shaft 60 realizations and mill stand 10, and described column 20 other ends pass entablature 50 and by nut 70, locked.The nut 70 that is used for locking is selected hydraulic nut, can realize so reliable bonding strength and alleviate hand labor intensity in assembling process.During the demolition, installation roll, can first unload lower nut 70 and hang entablature 50, rotating column 20 makes it be deployed condition separated from one another, reserve the space that takes on or hang out for roll this moment, roll is changed complete rear rotation column 20 makes it be in cooperation position with roll, is loaded on entablature 50 and locking nut 70 and gets final product.
Between the First terrace 21 of described column 20 and pole face 23, cylindrical section 22e is arranged, form between the upper end of described pole face 23 and cylindrical section 22e towards the second step face 25 of milling train rear side below, second step face 25 is 50～80 ° with horizontal plane angle, is preferably 60 °.This angle can guarantee that the dismounting roll is as the criterion.Described second step face 25 is to arrange for the aperture that limits column 20 rotating opening, in conjunction with Fig. 1,2, column 20 turns to appropriate location, second step face 25 will contact with the suitable position of mill stand 10, column 20 just is supported on this aperture position, column 20 will separate with roll clutch shaft bearing holder assembly 30 this moment, and can conveniently implement the dismounting operation of roll this moment.
Described second step face 25 is positioned at and treats the forward and backward outer side-lower of rolled parts direct of travel towards milling train, refer to that second step face 25 has any different because the position of column 20 is different, namely four columns 20 have two feed sides that are positioned at roll, and other two root posts 20 are positioned at the exit side of roll; The second step face 25 on feed side two root posts 20 of roll of being positioned at towards the front lower place of roll feed side to, the second step face 25 on exit side two root posts 20 of roll of being positioned at towards the back lower place of roll exit side to, be to treat the direct of travel of rolled parts as the sword head direction in Fig. 1.
As shown in Figure 1, be provided with cushion block 80 between described First terrace 21 and clutch shaft bearing holder assembly 30 and/or between clutch shaft bearing holder assembly 30 and mill stand 10.Namely when assembling, be convenient to first clutch shaft bearing holder assembly 30 is placed on mill stand 10, rotating column 20 makes on it and is arranged in hypomere ground part cylinder and is positioned at groove 31, this moment, First terrace 21 was higher than the clutch shaft bearing holder assembly 30 suitable distances in upper surface, the rotation of being convenient to like this column 20 enters position, after suitably being out of shape, places on stretching column 20 cushion block 80 of suitable thickness therebetween between First terrace 21 and clutch shaft bearing holder assembly 30 upper surfaces,, to guarantee the due amount of tension of column 20, guarantee according to this pretension tension.
Provide the external force of column 20 stretcher strains to be completed by oil cylinder, briefly explain as follows.
The scheme that the present invention has adopted column 20 hypomeres to compress clutch shaft bearing holder assembly 30 pretensions, under the External Force Acting of normal rolling work, column 20 hypomeres no longer there will be the elongation phenomenon, that is to say that clutch shaft bearing holder assembly 30 has been located reliably, even if the stretching phenomenon appears in the shaft of the column 20 of First terrace more than 21, the impact that the variation of breaker roll spacing brings is also very limited, thereby has improved widely the rolling accuracy of milling train.On-line control and the control of this distance of roll shop building for milling train provide reliable assembly foundation.
Claims (10)
1. the positioner of a rolling mill bearing, comprise clutch shaft bearing holder assembly (30), column (20) and mill stand (10), it is characterized in that: the middle hypomere position of column (20) is provided with the prone First terrace of plate (21), forms the position-limit mechanism of clutch shaft bearing holder assembly (30) being implemented the above-below direction displacement of pressure pretension location between the supporting surface that this First terrace (21) and mill stand (10) make progress.
2. the positioner of rolling mill bearing according to claim 1, it is characterized in that: the epimere of described column (20) is that cylindrical thread section (22a), stage casing are that cross section is square square column section (22b) and the following hypomere (22c) of square column section (22b), square column section (22b) forms First terrace (21) with hypomere (22c) intersection, the plate face level of First terrace (21) or oblique downward.
3. the positioner of rolling mill bearing according to claim 1, it is characterized in that: the following hypomere (22c) of the First terrace (21) of described column (20) has the pole face (23) that is parallel to each other, pole face (23) is axial vertical with roll, this hypomere (22c) is positioned at the cell body (11) that the notch of mill stand (10) makes progress, spacing between described two pole faces (23) that are parallel to each other and the groove width of cell body (11) are coincide, between the lower end of hypomere (22c) and cell body (11), jointed shaft (60) is set, jointed shaft (60) is parallel with the axle core of roll.
4. the positioner of rolling mill bearing according to claim 1, it is characterized in that: the groove (31) that the below of the First terrace (21) of described column (20) has one section cylinder to be positioned to offer on bearing block assembly (30), both cooperations are construed as limiting clutch shaft bearing holder assembly (30) along the axially movable position-limit mechanism of roll.
5. the positioner of rolling mill bearing according to claim 1, it is characterized in that: the end surface shape of described clutch shaft bearing holder assembly (30) is reversed convex type, and with described mill stand (10) on the concave regions offered be construed as limiting the position-limit mechanism that described clutch shaft bearing holder assembly (30) moves along rolling material direct of travel.
6. the positioner of rolling mill bearing according to claim 1, it is characterized in that: the epimere of described column (20) is cylindrical thread section (22a), be provided with cylindrical section (22d) between cylindrical thread section (22a) and square column section (22b), this cylindrical section (22d) coordinates grafting with the hole on entablature (50), the upper end that square column section (22b) is positioned at the cylinder of material exit side is provided with inclined-plane (24), inclined-plane (24) from square column section (22b) to cylindrical section (22d) transition, be provided with the inclined-plane (51) that coincide with this inclined-plane (24) on the lower surface of entablature (50).
7. the positioner of rolling mill bearing according to claim 3, it is characterized in that: between the First terrace (21) of described column (20) and pole face (23), cylindrical section (22e) is arranged, form between the upper end of described pole face (23) and cylindrical section (22e) towards the second step face (25) of milling train rear side below, second step face (25) is 50 ~ 80 ° with horizontal plane angle.
8. the positioner of rolling mill bearing according to claim 1, is characterized in that: between described First terrace (21) and bearing block assembly (30), and/or be provided with cushion block (80) between bearing block assembly (30) and mill stand (10).
9. the positioner of rolling mill bearing according to claim 4, it is characterized in that: described groove (31) be positioned at clutch shaft bearing holder assembly (30) first half pedestal the both sides, front and back and run through the upper and lower end face of the first half, the notch of described groove (31) points to fore-and-aft direction and cross section is U-shaped, the following cylinder that is positioned at groove of the First terrace (21) on the cell wall of groove (31) parallel and groove width and column (20) roll mandrel to size identical.
10. the positioner of rolling mill bearing according to claim 7, it is characterized in that: the main body between described second step face (25) and First terrace (21) is cylinder, and this section cylinder is positioned at groove (31).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101312007A CN102303049B (en) | 2011-05-18 | 2011-05-18 | Positioning device for bearing seat of rolling mill |
| EP12786557.4A EP2711100B1 (en) | 2011-05-18 | 2012-05-17 | Rolling mill bearing chock positioning device |
| PCT/CN2012/075648 WO2012155851A1 (en) | 2011-05-18 | 2012-05-17 | Rolling mill bearing positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101312007A CN102303049B (en) | 2011-05-18 | 2011-05-18 | Positioning device for bearing seat of rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102303049A CN102303049A (en) | 2012-01-04 |
| CN102303049B true CN102303049B (en) | 2013-11-13 |
Family
ID=45377017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101312007A Active CN102303049B (en) | 2011-05-18 | 2011-05-18 | Positioning device for bearing seat of rolling mill |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2711100B1 (en) |
| CN (1) | CN102303049B (en) |
| WO (1) | WO2012155851A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303049B (en) * | 2011-05-18 | 2013-11-13 | 合肥市百胜科技发展股份有限公司 | Positioning device for bearing seat of rolling mill |
| CN104646430B (en) * | 2015-01-23 | 2017-01-04 | 合肥市百胜科技发展股份有限公司 | Roll positioning adjustment device |
| CN107782618B (en) * | 2017-09-19 | 2019-12-31 | 中北大学 | Product tensile test mechanics experimental facilities |
| CN110421011B (en) * | 2019-08-16 | 2024-07-05 | 中冶南方工程技术有限公司 | Calibration device and calibration method for 18-roll mill side support device |
| CN117231634B (en) * | 2023-10-24 | 2024-03-22 | 响水县瑞丰重型轴承座制造有限公司 | Bearing pedestal with buffer mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516276A (en) * | 1967-06-06 | 1970-06-23 | Davy & United Eng Co Ltd | Rolling mills |
| CN201439095U (en) * | 2009-07-07 | 2010-04-21 | 中冶赛迪工程技术股份有限公司 | Rolling mill rack with high stiffness |
| CN201768743U (en) * | 2010-07-28 | 2011-03-23 | 德阳市西川机械技术研究所 | Stand of prestress rolling mill |
| CN202207710U (en) * | 2011-05-18 | 2012-05-02 | 合肥市百胜科技发展股份有限公司 | Positioning device for rolling mill bearing base |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE390608B (en) * | 1973-02-12 | 1977-01-03 | Metalform Ab | MATERIAL PROCESSING DEVICE BY ROLLING OR PRESSING |
| IT1141791B (en) * | 1980-05-06 | 1986-10-08 | Danieli Off Mecc | REFINEMENTS FOR FIXED LAMINATION LINE CAGES AND FIXED LAMINATION LINE CAGES SO PERFECTED |
| IT1174098B (en) * | 1984-05-28 | 1987-07-01 | Pomini Farrel Spa | LAMINATION CAGE OF THE TYPE OF TIE RODS WITH OSCILATING SUPPORTS WITH INTERMEDIATE SUPPORT BASES |
| AU8164894A (en) | 1993-12-23 | 1995-07-27 | Morgan Construction Company | Parting adjustment system for housingless roll stand |
| DE19816320C1 (en) * | 1998-04-11 | 1999-11-25 | Schloemann Siemag Ag | Universal scaffold with a divided operator-side stand |
| CN2796875Y (en) | 2005-02-21 | 2006-07-19 | 郑红专 | Composite machine frame of mill |
| CN201144089Y (en) * | 2007-12-29 | 2008-11-05 | 中冶南方工程技术有限公司 | Mobile dual-layer storage device for rollers |
| CN101428299B (en) * | 2008-10-21 | 2011-01-12 | 北方工业大学 | Short stress path molding mill |
| CN101658862B (en) | 2009-09-24 | 2010-08-04 | 朱勉学 | Sheet rolling mill with hydraulic screwdown on support roll |
| CN102303049B (en) * | 2011-05-18 | 2013-11-13 | 合肥市百胜科技发展股份有限公司 | Positioning device for bearing seat of rolling mill |
-
2011
- 2011-05-18 CN CN2011101312007A patent/CN102303049B/en active Active
-
2012
- 2012-05-17 EP EP12786557.4A patent/EP2711100B1/en not_active Not-in-force
- 2012-05-17 WO PCT/CN2012/075648 patent/WO2012155851A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516276A (en) * | 1967-06-06 | 1970-06-23 | Davy & United Eng Co Ltd | Rolling mills |
| CN201439095U (en) * | 2009-07-07 | 2010-04-21 | 中冶赛迪工程技术股份有限公司 | Rolling mill rack with high stiffness |
| CN201768743U (en) * | 2010-07-28 | 2011-03-23 | 德阳市西川机械技术研究所 | Stand of prestress rolling mill |
| CN202207710U (en) * | 2011-05-18 | 2012-05-02 | 合肥市百胜科技发展股份有限公司 | Positioning device for rolling mill bearing base |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-319919A 1999.11.24 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2711100A4 (en) | 2015-01-28 |
| EP2711100A1 (en) | 2014-03-26 |
| EP2711100B1 (en) | 2017-03-22 |
| WO2012155851A1 (en) | 2012-11-22 |
| CN102303049A (en) | 2012-01-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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