CN102284502A - Bending roll-shifting device of rolling mill - Google Patents
Bending roll-shifting device of rolling mill Download PDFInfo
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- CN102284502A CN102284502A CN2011102301847A CN201110230184A CN102284502A CN 102284502 A CN102284502 A CN 102284502A CN 2011102301847 A CN2011102301847 A CN 2011102301847A CN 201110230184 A CN201110230184 A CN 201110230184A CN 102284502 A CN102284502 A CN 102284502A
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Abstract
The invention discloses a bending roll-shifting device of a rolling mill, which can effectively solve the problem of unbalance loading of a working roll bearing block. The bending roll-shifting device is characterized in that cross sections of ejection ends of each operating side bending roll hydraulic cylinder and each transmission side bending roll hydraulic cylinder are designed into prolate shapes with length directions consistent with the direction of a center line of a roll. The stress area of the roll in the direction of the center line of the roll between the ejection ends and the bearing block can be increased due to the prolate structure design of the cross section of the ejection ends, the unbalanced loading of the ejection ends acting on the bearing block is reduced, and the service life of a working roll bearing is avoided from being reduced.
Description
Technical field
The present invention relates to milling train, be specifically related to the curved roll shifting device of milling train.
Background technology
Publication number is that the patent application document (calling reference paper 1 in the following text) of CN101185942A discloses a kind of roller mill roll bending and shifting device, and specifically disclose: a, be installed with on two fore sides roller hydraulic cylinder under roller hydraulic cylinder and two fore sides, be installed with on two transmission sides roller hydraulic cylinder under roller hydraulic cylinder and two transmission sides in the both sides that lay respectively at the roll center line on the transmission side memorial archway in the both sides that lay respectively at the roll center line on the fore side memorial archway; B, on the direction of roll center line, on each fore side under roller hydraulic cylinder and the fore side roller hydraulic cylinder connects with top roll fore side bearing block and lower roll fore side bearing block are movable respectively, on each transmission side under roller hydraulic cylinder and the transmission side roller hydraulic cylinder connect with top roll transmission side bearing block and the activity of lower roll transmission side bearing block respectively; But but c, be equipped with in the outside of fore side memorial archway axial action in the top roll roll shifting hydraulic cylinder of top roll fore side bearing block and axial action in the lower roll roll shifting hydraulic cylinder of lower roll fore side bearing block.
Point out in the 7th section 8～13 row of the Instructions Page 3 of reference paper 1, being fixedly connected to make complete machine structure simple with above-mentioned these roller hydraulic cylinders and frame (being fore side memorial archway and transmission side memorial archway), and, can prevent that therefore the bearing block that is subjected to the effect of roller hydraulic cylinder from producing unbalance loading by the pressure of adjusting this two roll bending stations hydraulic cylinder because the last roller hydraulic cylinder of each side and following roller hydraulic cylinder all are made as two.That is to say, thus reference paper 1 instructed make working roll bearing block disperse stressed have to relatively move between roller hydraulic cylinder and the working roll bearing block when overcoming with the caused string roller in the fixing back of roller hydraulic cylinder cause the problem of working roll bearing block unbalance loading.
But, the reference paper 1 means more complicated that overcomes working roll bearing block unbalance loading problem that adopts.And, because the last roller hydraulic cylinder and the following roller hydraulic cylinder of roll center line the same side are separately fixed on the memorial archway, therefore, about the piston in the piston in the last roller hydraulic cylinder and the following roller hydraulic cylinder acts on respectively during two bearing blocks, the bending roller force that is passed to memorial archway by the cylinder body of last roller hydraulic cylinder acts on memorial archway respectively with the bending roller force that the cylinder body of following roller hydraulic cylinder passes to memorial archway, produce stress in the junction of roller hydraulic cylinder and memorial archway and concentrate, finally can weaken the rigidity of memorial archway.
Summary of the invention
The present invention aims to provide a kind of curved roll shifting device that can effectively solve the milling train of working roll bearing block unbalance loading.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be: the both sides that are positioned at the roll center line on the fore side memorial archway are installed with the fore side roller hydraulic cylinder that can act radially on top roll fore side bearing block, lower roll fore side bearing block respectively, and the both sides that are positioned at the roll center line on the transmission side memorial archway are installed with the transmission side roller hydraulic cylinder that can act radially on top roll transmission side bearing block, lower roll transmission side bearing block respectively; On the direction of roll center line, each fore side roller hydraulic cylinder respectively with corresponding top roll fore side bearing block, lower roll fore side bearing block is movable connects, each transmission side roller hydraulic cylinder respectively with corresponding movable connection of top roll transmission side bearing block, lower roll transmission side bearing block; But but be equipped with in the outside of fore side memorial archway axial action in the top roll roll shifting hydraulic cylinder of top roll fore side bearing block and axial action in the lower roll roll shifting hydraulic cylinder of lower roll fore side bearing block; The cross section that ejects end of described each fore side roller hydraulic cylinder and transmission side roller hydraulic cylinder is designed to the length direction prolate shape consistent with the direction of roll center line.
Above-mentioned " the movable connection " can realize by the mode that employing is slidingly matched, also can adopt the mode that cooperates of rolling to realize.Above-mentioned " prolate shape " can for oval, rectangle or Long Circle (promptly by two parallel straight lines and connect these two straight line two ends that circular arc line constituted was close-shaped) etc.Eject the end cross section and be the structural design of prolate shape and can increase and eject the lifting surface area on the roll centerline direction between end and the bearing block, reduced to eject end and acted on unbalance loading on the bearing block, avoided the workroll bearing life-span to reduce.Have the advantage of being convenient to processing and manufacturing, can guaranteeing to eject big lifting surface area between end and the bearing block owing to the cross section that will eject end is designed to Long Circle than being designed to other shapes, so the present invention preferentially adopts this shape.
Fore side roller hydraulic cylinder of the present invention can be to act on the fore side of top roll fore side bearing block and lower roll fore side bearing block roller hydraulic cylinder under the roller hydraulic cylinder and fore side in the reference paper 1 respectively.At this moment, preferably the quantity of roller hydraulic cylinder under roller hydraulic cylinder, the fore side on the fore side in the reference paper 1 is reduced to one respectively.In like manner, transmission side roller hydraulic cylinder of the present invention can be to act on the transmission side of top roll transmission side bearing block and lower roll transmission side bearing block roller hydraulic cylinder under the roller hydraulic cylinder and transmission side in the reference paper 1 respectively.At this moment, preferably the quantity of roller hydraulic cylinder under roller hydraulic cylinder and the transmission side on the transmission side in the reference paper 1 is reduced to one respectively.Like this, the quantity of roller hydraulic cylinder can be reduced to eight by 16 in the reference paper 1.
But the present invention further suggestion fixedly mounts a synchronous effect respectively on top roll fore side bearing block and lower roll fore side bearing block and make these two bearing blocks reverse stressed and stressed big or small identical operations lateral bending roller hydraulic cylinder up and down in the both sides that are positioned at the roll center line on the fore side memorial archway; But be installed with a synchronous effect respectively in the both sides that are positioned at the roll center line on the transmission side memorial archway on top roll transmission side bearing block and lower roll transmission side bearing block and make these two bearing blocks reverse identical transmission side roller hydraulic cylinder of stressed and stressed size up and down.Like this, the quantity of roller hydraulic cylinder can further be reduced to four by eight.
And, because each fore side roller hydraulic cylinder acts on top roll fore side bearing block and lower roll fore side bearing block simultaneously, each transmission side roller hydraulic cylinder acts on top roll transmission side bearing block and lower roll transmission side bearing block simultaneously, therefore, opposite and the big or small identical bending roller force of a pair of direction that is applied on each fore side roller hydraulic cylinder is cancelled out each other, equally, the opposite and big or small identical bending roller force of a pair of direction that is applied on the transmission side roller hydraulic cylinder is cancelled out each other.Therefore, the outermost casing wall of fore side roller hydraulic cylinder and transmission side roller hydraulic cylinder does not bear bending roller force, thus bending roller force can not be delivered on fore side memorial archway and the transmission side memorial archway yet, thereby guarantee the rigidity of memorial archway.
Fore side roller hydraulic cylinder of the present invention and transmission side roller hydraulic cylinder can be designed to multiple by the two-way structure that ejects of hydraulic-driven realization.Concrete structure provided by the present invention comprise the cylinder seat, with this cylinder seat axial sliding fit and inner the upper piston tube and the lower piston tube of socket mutually, and the mandrel that is arranged in upper piston tube and lower piston tube, it is that cylinder body, mandrel are the last hydraulic drive unit of piston by the upper piston tube that described upper piston tube and mandrel constitute one, constituting one between described cylinder seat and the lower piston tube is that cylinder body, lower piston tube are the following hydraulic drive unit of piston by the cylinder seat, connects by universal-joint spindle between described mandrel and the lower piston tube; The cross section of described upper piston tube and lower piston tube is the length direction prolate shape consistent with the direction of roll center line.
Roller hydraulic cylinder for said structure, when work simultaneously in last hydraulic drive unit and following hydraulic drive unit, the top roll fore side bearing block (or top roll transmission side bearing block) that the upper piston tube promotes to support at an upper portion thereof moves upward, the lower roll fore side bearing block (or lower roll transmission side bearing block) that the lower piston tube promotes its underpart moves downward, at this moment, be equal to the thrust sum of producing in the thrust of producing in the hydraulic drive unit and the following hydraulic drive unit owing to be applied to active force on the upper piston tube and the active force on the lower piston tube, therefore, the thrust that the upper piston tube produces is in full accord with the thrust size that the lower piston tube produces, and can guarantee that the bending roller force that top roll and lower roll born is big or small consistent.
The roll shifting device specifically can be in the following ways and top roll fore side bearing block and lower roll fore side bearing block driving coupling: the cylinder body of the cylinder body of top roll roll shifting hydraulic cylinder and lower roll roll shifting hydraulic cylinder respectively with the cylinder seat of the adjacent fore side roller hydraulic cylinder structure that is connected as one; Piston rod in described top roll roll shifting hydraulic cylinder and the lower roll roll shifting hydraulic cylinder respectively by gland be socketed in its cylinder body outside, and supporting seat that have draw-in groove spacing by rotation preventive mechanism combine as a whole, and the locking hydraulic cylinder also is installed on the described supporting seat; From the side of top roll roll shifting hydraulic cylinder, the coupling member that is fixed on the top roll fore side bearing block outside is connected in the corresponding draw-in groove by the latch by the locking Driven by Hydraulic Cylinder, from the side of lower roll roll shifting hydraulic cylinder, the coupling member that is fixed on the lower roll fore side bearing block outside is connected in the corresponding draw-in groove by the latch by the locking Driven by Hydraulic Cylinder.
Like this, promptly top roll fore side bearing block is axially connected with the supporting seat that is socketed in top roll roll shifting hydraulic cylinder outside, thereby drive top roll fore side bearing block and whole top roll direction axial float along the roll center line by the piston rod in the top roll roll shifting hydraulic cylinder by locking hydraulic cylinder and coupling member.Equally, by locking hydraulic cylinder, coupling member lower roll fore side bearing block is axially connected with the supporting seat that is socketed in lower roll roll shifting hydraulic cylinder outside, thereby drive lower roll fore side bearing block and whole lower roll direction axial float along the roll center line by the piston rod in the lower roll roll shifting hydraulic cylinder.When needing roll change, reset by the corresponding latch of each locking Driven by Hydraulic Cylinder, this moment, whole top roll no longer was subjected to the restriction of top roll roll shifting hydraulic cylinder, and whole lower roll no longer is subjected to the restriction of lower roll roll shifting hydraulic cylinder, can finish the roll change operation easily.
But but the outside that the present invention is preferably in the fore side memorial archway with the roll centerline axis be symmetrically installed with two axial action in the top roll roll shifting hydraulic cylinder of top roll fore side bearing block and two axial action in the lower roll roll shifting hydraulic cylinder of lower roll fore side bearing block.
In addition, be respectively arranged with at least one top roll connects axle and holds hydraulic cylinder and at least one lower roll tightly and connect axle and hold hydraulic cylinder tightly in the outside of described transmission side memorial archway and the both sides that are positioned at the roll center line, described top roll connects a head that axle holds hydraulic cylinder tightly and is connected with top roll and connects the carriage that axle cooperates, and described lower roll connects axle and holds the head of hydraulic cylinder tightly and be connected with lower roll and connect a carriage that cooperates.When milling train is in the roll change duty, top roll hold tightly hydraulic cylinder and lower roll hold tightly hydraulic cylinder respectively driven bracket top roll is connect axle and lower roll connect and spool hold tightly, it is simple in structure, and is safe and reliable.
The invention has the beneficial effects as follows: the first, efficiently solve working roll bearing block unbalance loading problem, the quantity of roller hydraulic cylinder can significantly reduce; The second, the present invention adopts the roll-bending device of floating type roller cylinder, and bending roller force can not be delivered on the memorial archway of milling train, therefore can not weaken the rigidity of memorial archway; Three, be fixed on design form on the mill housing owing to used the roller cylinder, but reduce the cumulative errors that produce because of in processing, the assembling process in the maximum magnitude, thereby avoid impulsive force because of the excessive generation of cumulative errors to cause locking device, connect the damage of an enclasp device; Four, in the roll shifting process, because fore side roller hydraulic cylinder, transmission side roller hydraulic cylinder all are fixed on the mill housing, can avoid oil-collecting hole to damage and pipeline leakage, avoid the potential safety hazard that leakage and explosion brought to greatest extent, can prolong the service life of roller hydraulic cylinder because of pressure duct; Five, owing to roll-bending device, roll shifting device, locking device, connect the rational project organization of an enclasp device, reduced leakage and controlling unit, made system's control of whole device be tending towards oversimplifying, thereby improved the reliability of using.
Description of drawings
Fig. 1 is a floor plan of the present invention.
Fig. 2 be among Fig. 1 C-C to profile.
Fig. 3 be among Fig. 1 D-D to profile.
Fig. 4 is the structural representation of top roll roll shifting hydraulic cylinder among Fig. 1.
Fig. 5 is the structural representation of fore side roller hydraulic cylinder among Fig. 2.
Fig. 6 be among Fig. 5 E-E to cutaway view.
Be labeled as among the figure: fore side memorial archway 1A, transmission side memorial archway 1B, fore side roller hydraulic cylinder 2A, transmission side roller hydraulic cylinder 2B, top roll connects axle 101, lower roll connects axle 102, cylinder seat 201, upper piston tube 202, lower piston tube 203, mandrel 204, universal-joint spindle 205, oil discharge passage T1, oil inlet passage T2, oil inlet passage T3, top roll fore side bearing block 3A01, lower roll fore side bearing block 3A02, top roll transmission side bearing block 3B01, lower roll transmission side bearing block 3B02, top roll 401, lower roll 402, roll center line 5, top roll roll shifting hydraulic cylinder 601, lower roll roll shifting hydraulic cylinder 602, block 6001, cylinder body 6002, pressed seat 6003, gland 6004, piston rod 6005, supporting seat 6006, latch 6007, coupling member 7, top roll connects axle and holds hydraulic cylinder 801 tightly, lower roll connects axle and holds hydraulic cylinder 802 tightly, carriage 901, carriage 902.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 3, the curved roll shifting device of milling train comprises top roll 401, lower roll 402, top roll fore side bearing block 3A01, lower roll fore side bearing block 3A02, top roll transmission side bearing block 3B01, lower roll transmission side bearing block 3B02, fore side memorial archway 1A, transmission side memorial archway 1B, but is installed with a synchronous effect respectively in the both sides that are positioned at roll center line 5 on the fore side memorial archway 1A on top roll fore side bearing block 3A01 and lower roll fore side bearing block 3A02 and make these two bearing blocks reverse stressed and stressed big or small identical operations lateral bending roller hydraulic cylinder 2A up and down; But be installed with a synchronous effect respectively in the both sides that are positioned at roll center line 5 on the transmission side memorial archway 1B on top roll transmission side bearing block 3B01 and lower roll transmission side bearing block 3B02 and make these two bearing blocks reverse identical transmission side roller hydraulic cylinder 2B of stressed and stressed size up and down.
Wherein, fore side roller hydraulic cylinder 2A and transmission side roller hydraulic cylinder 2B adopt structure shown in Figure 5, it comprises cylinder seat 201, with these cylinder seat 201 axial sliding fits and inner the upper piston tube 202 and the lower piston tube 203 of socket mutually, and the mandrel 204 that is arranged in upper piston tube 202 and lower piston tube 203, it is cylinder body by upper piston tube 202 that described upper piston tube 202 constitutes one with mandrel 204, mandrel 204 is the last hydraulic drive unit of piston, constituting one between described cylinder seat 201 and the lower piston tube 203 is cylinder body by cylinder seat 201, lower piston tube 203 is the following hydraulic drive unit of piston, connects by universal-joint spindle 205 between described mandrel 204 and the lower piston tube 203; The cross section of described upper piston tube 202 and lower piston tube 203 is the length direction Long Circle consistent with the direction of roll center line 5.
The operation principle of above-mentioned fore side roller hydraulic cylinder 2A (or transmission side roller hydraulic cylinder 2B) is: the T2 that goes up in the hydraulic drive unit is that oil inlet passage, T1 are oil discharge passage, and the T3 in the following hydraulic drive unit is an oil inlet passage; When work simultaneously in last hydraulic drive unit and following hydraulic drive unit, mandrel 204 is subjected to from the downward directed force F 1 of hydraulic oil of T2 injection, upper piston tube 202 is subjected to the reaction force F1 ' of directed force F 1 and the directed force F 2 that makes progress from the hydraulic oil that T3 injects simultaneously, and lower piston tube 203 is subjected to downward directed force F 1 of mandrel 204 and the downward directed force F of injecting from T3 2 of hydraulic oil simultaneously; Therefore, the stressed size of upper piston tube 202 is with the stressed equal and opposite in direction of lower piston tube 203 (being equal to F1 and F2 sum) but be subjected to force direction opposite, this moment, upper piston tube 202 and lower piston tube 203 outwards ejected respectively, the bending roller force that finally acts on the cylinder seat 201 is cancelled each other, bending roller force can not be delivered on the fore side memorial archway 1A (or transmission side memorial archway 1B), thereby guarantees the rigidity of memorial archway.
As shown in Figure 6, since the cross section of described upper piston tube 202 and lower piston tube 203 be the length direction Long Circle consistent with the direction of roll center line 5 (promptly by two parallel straight lines and be connected these two straight line two ends that circular arc line constituted was close-shaped), thereby increased the lifting surface area on the roll centerline direction between upper piston tube 202 and lower piston tube 203 and the bearing block, act on unbalance loading on the bearing block thereby reduced upper piston tube 202 and lower piston tube 203, avoided the workroll bearing life-span to reduce.
In addition, the cross section of upper piston tube 202 and lower piston tube 203 can also adopt prolate shape structures such as ellipse, rectangle, because the more traditional circular cross-section hydraulic cylinder of this class shape has lifting surface area bigger on the roll centerline direction, therefore all can reduce the unbalance loading of bearing block.In addition, the present invention also thinks, adopts Long Circle to have certain advantage than other prolate shape structure, it is mainly reflected in easier processing, and long-time use can guarantee good sealing property, is not prone to leakage of oil, and the stressed property of this structure is better, and working stability is reliable.
As shown in Figure 1, on the direction of roll center line 5, top roll fore side bearing block 3A01 and lower roll fore side bearing block 3A02 connect with fore side roller hydraulic cylinder 2A is movable respectively, and top roll transmission side bearing block 3B01 and lower roll transmission side bearing block 3B02 connect with transmission side roller hydraulic cylinder 2B is movable respectively; But but in the outside of fore side memorial archway 1A with roll center line 5 axial symmetry be equipped with two axial action in the top roll roll shifting hydraulic cylinder 601 of top roll fore side bearing block 3A01 and two axial action in the lower roll roll shifting hydraulic cylinder 602 of lower roll fore side bearing block 3A02.
As shown in Figure 4, the cylinder body 6002 of the cylinder body 6002 of top roll roll shifting hydraulic cylinder 601 and lower roll roll shifting hydraulic cylinder 602 respectively with the cylinder seat of the adjacent fore side roller hydraulic cylinder 2A structure that is connected as one, piston rod 6005 in top roll roll shifting hydraulic cylinder 601 and the lower roll roll shifting hydraulic cylinder 602 respectively by gland 6004 be socketed in its cylinder body 6002 outsides, and supporting seat 6006 that have draw-in groove spacing by rotation preventive mechanism combine as a whole, and on the described supporting seat 6006 the locking hydraulic cylinder is installed also; From the side of top roll roll shifting hydraulic cylinder 601, the coupling member 7 that is fixed on the top roll fore side bearing block 3A01 outside is connected in the corresponding draw-in groove by the latch 6007 by the locking Driven by Hydraulic Cylinder, from the side of lower roll roll shifting hydraulic cylinder 602, the coupling member 7 that is fixed on the lower roll fore side bearing block 3A02 outside is connected in the corresponding draw-in groove by the latch 6007 by the locking Driven by Hydraulic Cylinder.
Concrete, locking hydraulic cylinder (not shown) is fixed on the supporting seat 6006, latch 6007 places between supporting seat 6006 and the pressed seat 6003, and block 6001 passes supporting seat 6006 and inserts latch 6007, rotates to prevent latch 6007, supporting seat 6006 and pressed seat 6003.When milling train is in the steel rolling state, locking hydraulic cylinder (not shown) drives latch 6007 and inserts in the middle of supporting seat 6006 and the pressed seat 6003, at this moment, coupling member 7 is connected in the draw-in groove on the supporting seat 6006, with the roll axial locking, and parallel mobile with the piston rod in the roll shifting hydraulic cylinder 6005 when roll shifting, realize axial float.
In addition, as shown in Figure 1, the described axle that connects is held tightly and is arranged on transmission side, connects axle and holds the outside that hydraulic cylinder leg is fixed on milling train transmission side memorial archway tightly.Be respectively arranged with at least one top roll connects axle and holds hydraulic cylinder 801 and at least one lower roll tightly and connect axle and hold hydraulic cylinder 802 tightly in the outside of described transmission side memorial archway 1B and the both sides that are positioned at roll center line 5, described top roll connects a head that axle holds hydraulic cylinder 801 tightly and is connected with top roll and connects axle 101 carriages that cooperate 901, and described lower roll connects axle and holds the head of hydraulic cylinder 802 tightly and be connected with lower roll and connect 102 carriage that cooperate 902.When milling train is in the roll change duty, top roll hold tightly hydraulic cylinder 801 and lower roll hold tightly hydraulic cylinder 802 respectively driven bracket 901,902 top roll is connect axle 101 and lower roll connect axle 102 and hold tightly, it is simple in structure, and is safe and reliable.
Claims (7)
1. the curved roll shifting device of milling train, the both sides that are positioned at roll center line (5) on fore side memorial archway (1A) are installed with the fore side roller hydraulic cylinder (2A) that can act radially on top roll fore side bearing block (3A01), lower roll fore side bearing block (3A02) respectively, and the both sides that are positioned at roll center line (5) on transmission side memorial archway (1B) are installed with the transmission side roller hydraulic cylinder (2B) that can act radially on top roll transmission side bearing block (3B01), lower roll transmission side bearing block (3B02) respectively; On the direction of roll center line (5), each fore side roller hydraulic cylinder (2A) respectively with corresponding top roll fore side bearing block (3A01), lower roll fore side bearing block (3A02) is movable connects, each transmission side roller hydraulic cylinder (2B) respectively with corresponding movable connection of top roll transmission side bearing block (3B01), lower roll transmission side bearing block (3B02); At fore side memorial archway (1A) but the outside be equipped with axial action in the top roll roll shifting hydraulic cylinder (601) of top roll fore side bearing block (3A01) but and axial action in the lower roll roll shifting hydraulic cylinder (602) of lower roll fore side bearing block (3A02), it is characterized in that: the cross section that ejects end of described each fore side roller hydraulic cylinder (2A), transmission side roller hydraulic cylinder (2B) is the consistent prolate shape of direction of length direction and roll center line (5).
2. the curved roll shifting device of milling train as claimed in claim 1 is characterized in that: on fore side memorial archway (1A), be positioned at roll center line (5) but both sides be installed with a synchronous effect respectively and go up and make these two bearing blocks reverse stressed and stressed big or small identical operations lateral bending roller hydraulic cylinder (2A) up and down in top roll fore side bearing block (3A01) and lower roll fore side bearing block (3A02); On transmission side memorial archway (1B), be positioned at roll center line (5) but both sides be installed with a synchronous effect respectively and go up and make these two bearing blocks reverse identical transmission side roller hydraulic cylinder (2B) of stressed and stressed size up and down in top roll transmission side bearing block (3B01) and lower roll transmission side bearing block (3B02).
3. the curved roll shifting device of milling train as claimed in claim 2, it is characterized in that: described fore side roller hydraulic cylinder (2A) and transmission side roller hydraulic cylinder (2B) include cylinder seat (201), with this cylinder seat (201) axial sliding fit and inner the upper piston tube (202) and the lower piston tube (203) of socket mutually, and the mandrel (204) that is arranged in upper piston tube (202) and lower piston tube (203), it is cylinder body by upper piston tube (202) that described upper piston tube (202) constitutes one with mandrel (204), mandrel (204) is the last hydraulic drive unit of piston, constituting one between described cylinder seat (201) and the lower piston tube (203) is cylinder body by cylinder seat (201), lower piston tube (203) is the following hydraulic drive unit of piston, connects by universal-joint spindle (205) between described mandrel (204) and the lower piston tube (203); The cross section of described upper piston tube (202) and lower piston tube (203) is the consistent prolate shape of direction of length direction and roll center line (5).
4. as the curved roll shifting device of claim 1,2 or 3 described milling trains, it is characterized in that: the cylinder body (6002) of top roll roll shifting hydraulic cylinder (601) and the cylinder body (6002) of lower roll roll shifting hydraulic cylinder (602) respectively with the cylinder seat of adjacent fore side roller hydraulic cylinder (2A) structure that is connected as one; Piston rod (6005) in described top roll roll shifting hydraulic cylinder (601) and the lower roll roll shifting hydraulic cylinder (602) combines as a whole with being socketed in outside, spacing by rotation preventive mechanism and the supporting seat (6006) that have a draw-in groove of its cylinder body (6002) by gland (6004) respectively, and described supporting seat also is equipped with the locking hydraulic cylinder on (6006); From the side of top roll roll shifting hydraulic cylinder (601), the coupling member (7) that is fixed on top roll fore side bearing block (3A01) outside is connected in the corresponding draw-in groove by the latch (6007) by the locking Driven by Hydraulic Cylinder, from the side of lower roll roll shifting hydraulic cylinder (602), the coupling member (7) that is fixed on lower roll fore side bearing block (3A02) outside by the latch (6007) by the locking Driven by Hydraulic Cylinder be connected to correspondence draw-in groove in.
5. as the curved roll shifting device of claim 1,2 or 3 described milling trains, it is characterized in that: the cross section that ejects end of described each fore side roller hydraulic cylinder (2A), transmission side roller hydraulic cylinder (2B) is Long Circle.
6. as the curved roll shifting device of claim 1,2 or 3 described milling trains, it is characterized in that: in the outside of fore side memorial archway (1A) with roll center line (5) but axial symmetry be equipped with two axial action in the top roll roll shifting hydraulic cylinder (601) of top roll fore side bearing block (3A01) but and two axial action in the lower roll roll shifting hydraulic cylinder (602) of lower roll fore side bearing block (3A02).
7. as the curved roll shifting device of claim 1,2 or 3 described milling trains, it is characterized in that: be respectively arranged with at least one top roll in the outside of described transmission side memorial archway (1B) and the both sides that are positioned at roll center line (5) and connect axle and hold hydraulic cylinder (801) and at least one lower roll tightly and connect and spool hold hydraulic cylinder (802) tightly, described top roll connects a head that axle holds hydraulic cylinder (801) tightly and is connected with top roll and connects the carriage (901) that axle (101) cooperates, and described lower roll connects axle and holds the head of hydraulic cylinder (802) tightly and be connected with lower roll and connect the carriage (902) that spool (102) cooperate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230184 CN102284502B (en) | 2011-08-11 | 2011-08-11 | Bending roll-shifting device of rolling mill |
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| CN 201110230184 CN102284502B (en) | 2011-08-11 | 2011-08-11 | Bending roll-shifting device of rolling mill |
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| CN102284502B CN102284502B (en) | 2013-06-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530448A (en) * | 2018-10-29 | 2019-03-29 | 中冶陕压重工设备有限公司 | Operation roll of mill roller structure |
| CN113070350A (en) * | 2021-05-12 | 2021-07-06 | 中冶赛迪工程技术股份有限公司 | Fixed type bending and shifting roller assembly structure, roller shifting device and roller shifting method |
| CN114309078A (en) * | 2022-01-04 | 2022-04-12 | 中冶京诚工程技术有限公司 | Axial roll shifting device and rolling mill |
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| DE3724557A1 (en) * | 1987-07-24 | 1989-02-02 | Schloemann Siemag Ag | Piston-cylinder unit for rolling stands |
| CN101147916A (en) * | 2007-10-31 | 2008-03-26 | 朱惠兴 | Hydraulic roller-bending device |
| CN101185942A (en) * | 2007-12-25 | 2008-05-28 | 二重集团（德阳）重型装备股份有限公司 | Roller mill roll bending and shifting device |
| CN101733285A (en) * | 2008-11-05 | 2010-06-16 | 中冶赛迪工程技术股份有限公司 | Temper mill with roll bending and shifting functions |
| CN101966532A (en) * | 2010-11-03 | 2011-02-09 | 大连华锐股份有限公司 | Composite positive and negative roller bending device based on six-high mill |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530448A (en) * | 2018-10-29 | 2019-03-29 | 中冶陕压重工设备有限公司 | Operation roll of mill roller structure |
| CN113070350A (en) * | 2021-05-12 | 2021-07-06 | 中冶赛迪工程技术股份有限公司 | Fixed type bending and shifting roller assembly structure, roller shifting device and roller shifting method |
| CN113070350B (en) * | 2021-05-12 | 2024-05-17 | 中冶赛迪工程技术股份有限公司 | Fixed bending roll shifting assembly structure, roll shifting device and roll shifting method |
| CN114309078A (en) * | 2022-01-04 | 2022-04-12 | 中冶京诚工程技术有限公司 | Axial roll shifting device and rolling mill |
| CN114309078B (en) * | 2022-01-04 | 2023-11-24 | 中冶京诚工程技术有限公司 | Axial roller shifting device and rolling mill |
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| CN102284502B (en) | 2013-06-05 |
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Effective date of registration: 20180322 Address after: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee after: Double (Deyang) heavy equipment Co., Ltd. Address before: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee before: Erzhong Group (Deyang) Heavy Equipment Co., Ltd. |