CN101954381A - Working roll bending device of plate band rolling mill - Google Patents
Working roll bending device of plate band rolling mill Download PDFInfo
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- CN101954381A CN101954381A CN 201010281795 CN201010281795A CN101954381A CN 101954381 A CN101954381 A CN 101954381A CN 201010281795 CN201010281795 CN 201010281795 CN 201010281795 A CN201010281795 A CN 201010281795A CN 101954381 A CN101954381 A CN 101954381A
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Abstract
The invention discloses a working roll bending device of a plate band rolling mill. The device is fixedly arranged on a rolling mill stand, and roll bending devices are arranged on two end parts of an upper working roll and a lower working roll so as to carry out supporting, balancing and roll bending control on the upper working roll and the lower working roll to improve the convexity of a loaded roll gap between the upper working roll and the lower working roll and control the plate shape. The roll bending device comprises a memorial archway, upper roll bending devices and lower roll bending devices, wherein the memorial archway is a framework body, and upright posts at the left side and the right side of the memorial archway are respectively inwards and convexly provided with a waist bump; the upper roll bending devices can be slidably arranged in the memorial archway, positioned above the waist bump and assembled at two ends of the upper working roll; and the lower roll bending devices can be slidably arranged in the memorial archway, positioned below the upper roll bending device and assembled at two ends of the lower working roll. The working roll bending device of the plate band rolling mill can meet the working requirement of a large large-openness plate band rolling mill and has the advantages of reliable rolling quality and long service life.
Description
Technical field
The present invention relates to a kind of roll-bending device, particularly a kind of strip-mill strip work roll bending device.
Background technology
Adopted multiple means and method improving roll gap convexity and control panel shape on the modern strip-mill strip, the hydraulic bending roll control method is convenient to online real-time control, can changes roll gap shape rapidly, is had the advantage of stronger plate shape control ability and be widely used with it.
At present, in the large-sized strip milling train, often use the positive roller control of working roll, by the upper working rolls and lower working rolls bearing block being applied the bending roller force identical and changes having between the upper and lower working roll of milling train and carry a roll gap convexity in that hydraulic roller-bending device is set between the upper working rolls and lower working rolls bearing block with the roll-force direction, thus control panel shape.Most device structure employing roll-bending device up and down is installed in the mill housing waist, adopts independent bending cylinder block; Also have last roll-bending device is arranged in the top backing up roll bearing block boss, following roller cylinder adopts independent cylinder piece, is installed in the arrangement at the waist of memorial archway.
For example, ZL03234488.0,200510020822.7, No. 200680037764.1 disclosed technical schemes of Chinese patent, what adopt is independent cylinder piece substantially, be installed in the structure of mill housing waist, the roller cylinder piston rod all is contained in the same cylinder piece up and down, cylinder piece and memorial archway are by carrying key and Bolt Connection, and dismounting is relatively easy; Memorial archway adopts straight-through window in addition, and memorial archway is relatively simple for structure; The hydraulic cylinder piece is processed separately, and processing and fabricating is relatively easy.But for opening degree variation large-sized rolling mills greatly, as large-scale heavy and medium plate mill, large-scale wide and heavy plate mill etc., technique scheme is not too suitable, adopt the structure of this type of roll-bending device to have certain limitation, owing to the milling train opening degree makes that the stroke of roller cylinder is long greatly, the guidance quality of roller cylinder and poor stability, sealing damages easily, cause service life short, guiding and the protection that must set up upper cylinder half; And further, because last roller cylinder will be close to top working roll all the time, follow the motion of top roll system, and the milling train opening degree changes frequently, must cause the frequent action of roller cylinder needs, has increased the action frequency of servo-hydraulic valve, reduced its service life, because the stroke of roller cylinder is long, required hydraulic pressure oil mass is also bigger simultaneously, and the hydraulic system supply time certainly will also will increase.
And as the disclosed technical scheme of ZL200710203401.7 Chinese patent, roughly adopt and to go up roll-bending device and be arranged in the top backing up roll bearing block boss, following roller cylinder adopts independent cylinder piece, be installed in the arrangement of memorial archway waist, this version can make roller cylinder stroke shortening on the big opening degree milling train, guidance quality and stability can be enhanced thus, the reliability of sealing also is improved, simultaneously required hydraulic pressure oil mass reduces, but above-mentioned this structure, employing is holed on the boss under the top backing up roll bearing block roller cylinder is installed, thereby the attachment bolt of loading piston chamber end cap and bearing block, and the reliability of its carrying is relatively poor; The pressure that the control of roller cylinder is adopted is higher, and bearing block is a steel-casting, and the inherent quality of foundry goods is relatively poor relatively, causes leakage easily; Simultaneously, a part will be designed in top backing up roll bearing block bottom more, and structure relative complex, weight of equipment are also heavier.
In addition, in large-sized rolling mills work, breast roll also plays considerable effect, transporting, assisting and sting steel etc. such as slab, especially rolling to large-scale heavy and medium plate mill short slab base, the transmission of breast roll should be adopted independent transmission, adopts central driving to have the problem that seals unreliable and oil leak.And the structure of existing roll-bending device, as disclosed structure in the above-mentioned existing patent, all exist roll mill and be not easy to carry out the problem that independent transmission is arranged, one employing will be adopted independent transmission away from the breast roll of roll, and adopt central driving near two breast rolls of roll, and perhaps adopt whole central driving, the travelling gear distributor box is set, and then bring breast roll transmission seal and lubricated problem, the normal use of breast roll there is suitable adverse influence.
In view of the foregoing, the design people manufactures and designs for many years abundant practical experience and professional knowledge based on being engaged in this kind equipment, cooperates the utilization of scientific principle, and through a large amount of practical proofs, has proposed the technical scheme of strip-mill strip work roll bending device of the present invention.
Summary of the invention
The object of the present invention is to provide a kind of strip-mill strip work roll bending device, can satisfy the work requirements of the large-sized strip milling train of big opening degree, the reliable and long service life of rolling quality.
To achieve these goals, the invention provides a kind of strip-mill strip work roll bending device, described roll-bending device is located at the both ends of top working roll and bottom working roll, with upper and lower working roll is supported, the control of balance and roller, improve the roll gap convexity of carrying that has between the upper and lower working roll of milling train, described roll-bending device comprises: memorial archway is a frame body, and described memorial archway left and right sides column convexes with a waist projection respectively to the inside; Last roll-bending device, slidable being installed in the described memorial archway, it is positioned at described waist projection top, and described upward roll-bending device is installed in the end of top working roll; Following roll-bending device, slidable being installed in the described memorial archway, it is positioned at the described roll-bending device below of going up, and described roll-bending device down is installed in the end of bottom working roll.
From the above, strip-mill strip work roll bending device of the present invention has following advantage and characteristics:
1, the last roller cylinder of strip-mill strip work roll bending device of the present invention is installed in the groove of top backing up roll bearing block lower boss, shortened last roller cylinder stroke, make the roller cylinder contact top working roll bearing block boss all the time, only when changing working roll, disengage; Need all not carry out hydraulic cylinder when each milling train is set opening degree and regulate, only the needs according to rolling model carry out dynamic roller control in the operation of rolling, reduce the action frequency of hydraulic cylinder, reduce the equipment frictional dissipation; Reduce the action frequency of servo-hydraulic valve, prolonged the service life of equipment, also reduced the plant maintenance frequency and time simultaneously.
2, the last roller cylinder of strip-mill strip work roll bending device of the present invention is installed in the top backing up roll bearing block, and hydraulic cylinder travel is shortened, and has reduced hydraulic oil consumption, and has helped reducing the fuel feeding working time; Because roller cylinder stroke shortens, reduced the compensation rate and the make-up time of oil cylinder work fluid, improved the response frequency of servo-drive system greatly, the control of plate shape is more fast, flexibly, effectively.
3, the last roller cylinder of strip-mill strip work roll bending device of the present invention is installed in the top backing up roll bearing block, make the former space that is used to install the roller cylinder of memorial archway waist can reserve the individual drive that is used to arrange breast roll, thereby improve sealing of breast roll transmission device and lubricated reliability, can reduce the breast roll fault frequency, reduce maintenance workload greatly.
4, strip-mill strip work roll bending device of the present invention will descend the roller cylinder to be installed in the projection of memorial archway waist, the projection of memorial archway waist and memorial archway integral body can be formed in one, can rationally utilize working space so that the layout of the independent transmission of breast roll like this, thereby improve sealing of breast roll transmission device and lubricated reliability, can reduce the breast roll fault frequency, reduce maintenance workload greatly.
5, the roller cylinder of strip-mill strip work roll bending device of the present invention adopts whole cylinder piece, last roller cylinder piston rod connects with the top backing up roll bearing block, following roller cylinder piston rod is connected with memorial archway, the roller cylinder is the motion of cylinder piece up and down, utilize cylinder piece guiding, the guiding segment length, the guiding area is big, and steering capability is stable.
6, strip-mill strip work roll bending device of the present invention is provided with roller cylinder fuel feed hole on piston rod, last lower piston rod is fixedly connected with top backing up roll bearing block and memorial archway respectively, make the oil-feed interface convenient, life-span is long, cost is low, occupies little space, and pipe arrangement is simple to operate, and sealing is reliable, and maintenance workload is few.
7, strip-mill strip work roll bending device of the present invention is provided with special-purpose integrated form oil-feed piece, be convenient to the oil-feed interface concentration is made things convenient for pipe arrangement, can realize the control respectively or the centralized Control of roller cylinder by on the oil-feed piece, carrying out oil circuit design, simple in structure, processing and fabricating is easy.
Description of drawings
The following drawings only is intended to the present invention done and schematically illustrates and explain, not delimit the scope of the invention.
Fig. 1 is a strip-mill strip work roll bending device overall structure schematic diagram of the present invention;
Fig. 2 is a strip-mill strip work roll bending device memorial archway schematic diagram of the present invention;
Fig. 3 is a strip-mill strip work roll bending device memorial archway waist projection enlarged diagram of the present invention;
Fig. 4 is a strip-mill strip work roll bending device upper support roll bearing seat schematic diagram of the present invention;
Fig. 5 is the B-B cutaway view of Fig. 1;
Fig. 6 controls oil-feed piece oil circuit schematic diagram respectively for strip-mill strip work roll bending device twin-tub of the present invention;
Fig. 7 controls oil-feed piece oil circuit schematic diagram respectively for strip-mill strip work roll bending device three cylinders of the present invention;
Fig. 8 A is a strip-mill strip work roll bending device twin-tub centralized Control asphalt principle schematic diagram of the present invention;
Fig. 8 B is strip-mill strip work roll bending device three cylinder centralized Control asphalt principle schematic diagrames of the present invention;
Fig. 9 A controls the asphalt principle schematic diagram respectively for strip-mill strip work roll bending device twin-tub of the present invention;
Fig. 9 B controls the asphalt principle schematic diagram respectively for strip-mill strip work roll bending device three cylinders of the present invention;
Figure 10 is a strip-mill strip work roll bending device overall work schematic diagram of the present invention.
Description of reference numerals:
100 roll-bending devices
200 top working rolls
300 bottom working rolls
400 breast rolls
500 upper support rollers
600 lower support rollers
1 memorial archway
11 waist projections
12 recesses
13 memorial archway holes
Roll-bending device on 2
21 upper support roll bearing seat
211 upper support roller installation holes
212 adjutages
213 installation portions
214 storage tanks
Roller cylinder group on 22
Roller cylinder on 221
222 piston rods
223 piston cylinders
224 oil-feed pieces
225 slide plates
226 backing plates
23 top working roll bearing blocks
231 top working roll installation holes
232 protuberances
3 times roll-bending devices
31 lower support roll bearing seat
311 lower support roller installation holes
32 times roller cylinder groups
321 times roller cylinders
33 bottom working roll bearing blocks
331 bottom working roll installation holes
332 protuberances
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
Please in conjunction with reference to figure 1 and Fig. 2, wherein Fig. 1 is a strip-mill strip work roll bending device overall structure schematic diagram of the present invention, Fig. 2 is a strip-mill strip work roll bending device memorial archway schematic diagram of the present invention, as shown in the figure, roll-bending device 100 of the present invention is located at the both ends of top working roll 200 and bottom working roll 300, that is to say, be respectively equipped with roll-bending device 100 of the present invention at the two ends of top working roll 200 and bottom working roll 300, thereby can be implemented in when rolling to the working roll device support, balance and roller control, improve the roll gap convexity of carrying that has of milling train, carry out the control of plate shape.
Roll-bending device 100 of the present invention mainly comprises: memorial archway 1, last roll-bending device 2 and following roll-bending device 3, memorial archway 1 is a frame body, it is mainly used in installing and goes up roll-bending device 2 and following roll-bending device 3, the bottom that the left and right sides column of memorial archway 1 convexes with a waist projection 11, two waist projections 11 respectively to the inside offers recess 12; Last roll-bending device 2 and following roll-bending device 3 all are installed in the memorial archway 1, and can slide up and down in memorial archway 1 inside, and last roll-bending device 2 is positioned at waist projection 11 tops, and it is connected in the end of top working roll 200; Following roll-bending device 3 is positioned at roll-bending device 2 belows, it connects the end of bottom working roll 300, following roll-bending device 3 has two following roller cylinder groups 32 that are used to regulate work roll crown, two following roller cylinder groups 32 are located at respectively in two recesses 12, to save working space, make memorial archway 1 to have living space and arrange the individual drive of breast roll 400, thereby improve the stability and the reliability of breast roll transmission.
Please in conjunction with Fig. 1, Fig. 2 with reference to figure 3, wherein Fig. 3 is strip-mill strip work roll bending device memorial archway waist projection 11 enlarged diagrams of the present invention, as shown in the figure, in the present embodiment, memorial archway 1 frame-like that roughly is rectangle is made up of lower and upper cross-member and left and right pillar, is convexly equipped with to the inside at the column medium position and forms two waist projections 11, two waist projections, 11 positions are relative, and waist projection 11 can be formed in one with the column of memorial archway 1.The downside of two waist projections 11 and opposite side cave inward and form recess 12, the recess 12 of two waist projections 11 is used to be installed with down the following roller cylinder group 21 of roll-bending device 2, to save working space, avoid as conventional art owing to the not enough individual drive that causes to be provided with breast roll of working space, reduce the reliability of transmission, increase maintenance workload.
Please in conjunction with reference to figure 1 and Fig. 4, wherein Fig. 4 is a strip-mill strip work roll bending device upper support roll bearing seat schematic diagram of the present invention, as shown in the figure, last roll-bending device 2 mainly comprises: upper support roll bearing seat 21, last roller cylinder group 22 and top working roll bearing block 23, what wherein upper support roll bearing seat 21 can slide up and down is arranged in the memorial archway 1 column window, the left and right sides slide plate of upper support roll bearing seat 21 and being slidingly connected of memorial archway 1 window inwall, about its concrete sliding connection structure is well-known to those skilled in the art, such as connecting etc., do not repeat them here by slider member.Upper support roll bearing seat 21 middle parts offer upper support roller installation hole 211, run through and install wherein in order to keep supplying backing roll 500, and upper support roller 500 cooperatively interacts with upper support roller installation hole 211, and the package assembly of the two is comparatively common, does not repeat them here.The part that is positioned at upper support roller installation hole 211 left and right sides on the upper support roll bearing seat 21 extends to form downwards and forms a holding part between two adjutages, 212, two adjutages 212.The bottom of two adjutages 212 inwards crooked (towards the holding part inside bend between two adjutages 212) is also extended certain distance and is formed two installation portions 213, two installation portions 213 are preferably horizontal-extending, installation portion 213 upsides can be used to install roller cylinder group 22, in the present embodiment, the madial wall of each adjutage 212 and installation portion 213 tops cave inward jointly and form storage tank 214, come ccontaining one to go up roller cylinder group 22, so that save working space more, and can effectively shorten the stroke of roller cylinder.
Top working roll bearing block 23 is arranged in the holding part between two adjutages 212, top working roll bearing block 23 middle parts offer top working roll installation hole 231, run through and install wherein in order to keep supplying working roll 200, top working roll 200 cooperatively interacts with top working roll installation hole 231, the package assembly of the two is comparatively common, does not repeat them here.In addition, after top working roll 200 and upper support roller 500 are installed in top working roll installation hole 231 and upper support roller installation hole 211 respectively, top working roll 200 can be subjected to the supporting role of upper support roller 500, and the lower roll surface of top working roll 200 protrudes from the downside of top working roll bearing block 23, can be rolled rolled piece whereby, operation principle about upper support roller 500 and top working roll 200 is a content known in those skilled in the art, just repeats no more at this.The left and right sides wall of top working roll bearing block 23 convexes with protuberance 232 respectively laterally, the corresponding respectively top that is positioned at two installation portions 213 of the protuberance 232 of both sides, two protuberances 232 can be used to install roller cylinder group 22, in the present embodiment, as shown in Figure 1, two protuberances 232 are convexly set in the top of top working roll bearing block 23 two sides, make whole top working roll bearing block 23 be "T"-shaped, install roller cylinder group 22 so that can between protuberance 232 and installation portion 213, reserve enough spaces, save working space simultaneously.
Please in conjunction with reference to figure 5, B-B cutaway view for Fig. 1, as shown in the figure, last roller cylinder group 22 is installed between upper support roll bearing seat 21 and the top working roll bearing block 23, be installed in specifically between installation portion 213 and the protuberance 232, the one end is connected in installation portion 213, the other end is connected in protuberance 232, the flexible of above roller cylinder group 22 will force in upper support roll bearing seat 21 and top working roll bearing block 23, especially be top working roll bearing block 23 power that provides support, the last roller cylinder group 22 that is installed in both sides needs to move simultaneously to force in top working roll bearing block 23, so as its both sides stress balance, the convexity of effectively regulating top working roll 200.In the present embodiment, last roller cylinder group 22 is arranged in the storage tank 214.In addition, those skilled in the art should be familiar: go up roller cylinder group 22 and can comprise roller cylinder 221 on one or more, a plurality of when going up the roller cylinder when comprising, a plurality of upward roller cylinders are set up in parallel and form a upward roller cylinder group 22, in most cases, in the actual production active force of roller cylinder group is had relatively high expectations, thus adopt a plurality of roller cylinders to form the mode of a roller cylinder group more, as roller cylinder group on two cylinders or three cylinders.Simultaneously, this setup of last roller cylinder group 22 also can be saved the working space on the memorial archway 1, for the individual drive that breast roll is installed, to promote the reliability and stability of transmission system, reduces maintenance workload.
Last roller cylinder 221 can adopt oil hydraulic cylinder, and it has piston rod 222 and piston cylinder 223, the motion that the variation of dependence oil pressure comes driven plunger cylinder and piston rod.Piston rod 222 is fixed in installation portion 213 end faces of upper support roll bearing seat 21 by oil-feed piece 224, piston cylinder 223 is resisted against protuberance 232 bottom surfaces of top working roll bearing block 23, if a plurality of situations that go up the roller cylinder are arranged, then a plurality of piston rods 222 are connected in an oil-feed piece 224 jointly, and oil-feed piece 224 is fixed in upper support roll bearing seat 21 again.Piston rod 222 and oil-feed piece 224 inside are provided with oil circuit, and the piston rod oil circuit is communicated in oil-feed piece oil circuit, being that last roller cylinder 221 fuel feeding drive its motion (about the setting of oil circuit, hereinafter detailed introduction will be arranged) by oil circuit; Be equipped with slide plate 225 around the piston cylinder 223 and between upper support roll bearing seat 21 and the top working roll bearing block 23,225 pairs of piston cylinders 223 of slide plate play the effect of motion guide, in addition, the slide plate 225 that is provided with between piston cylinder 223 and top working roll bearing block 23 also can be used as upper support roll bearing seat 21 and the blade fin that top working roll bearing block 23 relatively moves, the guide effect when playing the two and sliding mutually.Top at piston cylinder 223 also can be equipped with backing plate 226, when piston cylinder 223 is resisted against top working roll bearing block 23, backing plate 226 contacts with protuberance 232, power transmission media as 23 of piston cylinder 223 and top working roll bearing blocks, and the guiding wear-out part when backing plate 226 also can be used as top working roll 200 axial floats between piston cylinder 223 and the top working roll bearing block 23, backing plate can embed the top of piston cylinder 223, can adopt bolt fixing closing.
Certainly, according to disclosed content of the foregoing description and concrete actual conditions, those skilled in the art can know by inference easily and piston rod 222, piston cylinder 223 can be exchanged with the annexation of upper support roll bearing seat 21, top working roll bearing block 23, its technical scheme and structure annexation do not have essential change, just repeat no more at this.
Under request in person in conjunction with reference to figure 6 and Fig. 7, wherein Fig. 6 is a strip-mill strip work roll bending device twin-tub embodiment oil-feed piece oil circuit schematic diagram of the present invention, Fig. 7 is strip-mill strip work roll bending device three cylinder embodiment oil-feed piece oil circuit schematic diagrames of the present invention, be readily appreciated that, can comprise two in the roller cylinder group 22 on each, the roller cylinder 221 of three or other quantity, describe with two one group and ternary situation, be provided with oil circuit in the oil-feed piece 224, also be provided with oil circuit in the piston rod 222 that is attached thereto, and the piston rod oil circuit is connected with oil-feed piece oil circuit, further, the oil circuit of offering respectively on oil-feed piece 224 and the piston rod 222 is divided into rod chamber oil circuit and rodless cavity oil circuit again, carry out fuel feeding with rod chamber and the rodless cavity to piston cylinder 223 respectively, thereby driving the roller cylinder moves, this part drives structure and common oil hydraulic cylinder and indistinction just repeat no more at this.
When two or three roller cylinders 221 are the centralized Control driven in synchronism, be provided with general oil circuit in the oil-feed piece 224, each piston rod oil circuit all is connected with this general oil circuit, fuel feeding will pass to each piston cylinder 223 through each piston rod 222 simultaneously in the general oil circuit, thus a plurality of roller cylinders 221 of going up on centralized Control and the driven in synchronism in the roller cylinder group 22; Perhaps, the piston rod oil circuit that has only a roller cylinder in a plurality of roller cylinders 221 is connected with above-mentioned oil-feed piece oil circuit, and the rod chamber of a plurality of piston cylinders 223 is connected, the rodless cavity of a plurality of piston cylinders 223 also is connected, like this, by the oil-feed of a piston rod oil circuit, a plurality of piston cylinders 223 rod chambers and a plurality of piston cylinder 223 rodless cavities that are connected afterwards still can be realized driven in synchronism, centralized Control, can easier know by inference according to disclosed content among the embodiment about the central controlled structure those skilled in the art of a plurality of roller cylinders, do not repeat them here, central controlled asphalt principle is shown in Fig. 8 A and Fig. 8 B, wherein Fig. 8 A is a strip-mill strip work roll bending device twin-tub centralized Control asphalt principle schematic diagram of the present invention, and Fig. 8 B is strip-mill strip work roll bending device three cylinder centralized Control asphalt principle schematic diagrames of the present invention.
In addition, for the control and the type of drive that make a plurality of roller cylinders more versatile and flexible, the present invention has realized that also a plurality of roller cylinders control respectively, and designed corresponding oil circuit, being still above roller cylinder group 22, to have two or three roller cylinders be example, different with above-mentioned centralized control is, in the oil-feed piece 224 corresponding on each roller cylinder 221 independent oil path all is set, that is to say and be provided with independently oil circuit of twice or three roads in the oil-feed piece 224, independent oil path is connected with corresponding piston rod oil circuit respectively, thereby form twice or the separate oil supply pipe in three roads, be each piston cylinder fuel feeding, to realize independently controlling respectively and driving each piston cylinder, promptly control roller cylinder 221 on each respectively, as Figure 6 and Figure 7, wherein Fig. 6 controls oil-feed piece oil circuit schematic diagram respectively for strip-mill strip work roll bending device twin-tub of the present invention, and Fig. 7 controls oil-feed piece oil circuit schematic diagram respectively for strip-mill strip work roll bending device three cylinders of the present invention.The asphalt principle figure that multi-cylinder is controlled respectively and driven please refer to Fig. 9 A and Fig. 9 B, wherein Fig. 9 A controls the asphalt principle schematic diagram respectively for strip-mill strip work roll bending device twin-tub of the present invention, and Fig. 9 B controls the asphalt principle schematic diagram respectively for strip-mill strip work roll bending device three cylinders of the present invention.When a plurality of roller cylinders are controlled respectively, last roller cylinder 221 symmetrical balances that also need to be arranged at top working roll bearing block 23 both sides drive, the last roller cylinder group 22 that for example is positioned at the left side has a last roller cylinder 221 to apply a certain operating pressure, the last roller cylinder group 22 that is positioned at the right side so also will have the last roller cylinder 221 of a corresponding symmetric position to apply identical operating pressure, to guarantee the stress balance of top working roll bearing block 23 both sides, avoid breaking down.As mentioned above, a plurality of roller cylinders 221 of going up just can be realized respectively, independently move, to adapt to the multiple demand in the actual production.
Below more please in conjunction with reference to figure 1, Fig. 2, Fig. 3 and Fig. 5, following roll-bending device 3 is identical with the structure major part of last roll-bending device 2, it mainly includes: lower support roll bearing seat 31, following roller cylinder group 32 and bottom working roll bearing block 33, lower support roll bearing seat 31 is still being arranged in the memorial archway 1 of sliding up and down, but it does not need to be provided with structures such as adjutage and installation portion again, only need offer lower support roll shaft installation hole 311 and also can get final product with 600 mutual assemblings of lower support roller and operate as normal.
Bottom working roll bearing block 33 is located between the two waist projections 11, similar with top working roll bearing block 23, its middle part offers bottom working roll installation hole 331, be used to install bottom working roll 300, after bottom working roll 300 and the 600 normal installings of lower support roller, bottom working roll 300 can be subjected to the supporting role of lower support roller 600, and the last roll surface of bottom working roll 300 protrudes from the upside of bottom working roll bearing block 33, can be rolled rolled piece whereby, operation principle about lower support roller 600 and bottom working roll 300 is a content known in those skilled in the art, just repeats no more at this.The left and right sides wall of bottom working roll bearing block 33 also convexes with protuberance 332 respectively laterally, the corresponding respectively below that is positioned at two waist projections 11 of the protuberance 332 of both sides, two protuberances 332 can be used to install down roller cylinder group 32, in the present embodiment, as shown in Figure 1, two protuberances 332 are convexly set in the bottom of bottom working roll bearing block 33 two sides, make whole bottom working roll bearing block 33 be inverse-T-shaped.
Following roller cylinder group 32 is arranged in the recess 12 of memorial archway 1 waist projection 11, between waist projection 11 and bottom working roll bearing block protuberance 332, this version makes has on the memorial archway 1 enough spaces that the individual drive of breast roll 400 is set, and improves the stability and the reliability of transmission system; The power transmission shaft of each root breast roll can pass the memorial archway hole 13 at memorial archway 1 middle part.One end of following roller cylinder group 32 is connected in waist projection 11, and the other end is connected in bottom working roll bearing block protuberance 332, and its application of force principle is identical with last roller cylinder group 22, mainly is to provide downward balance and bending roller force for bottom working roll bearing block 33.Respectively be provided with roller cylinder group 32 under a group in bottom working roll bearing block 33 both sides, the following roller cylinder group 32 of both sides needs to move simultaneously to force in bottom working roll bearing block 33, so as its both sides stress balance, the convexity of effectively regulating bottom working roll 300.Identical with last roller cylinder group 22, following roller cylinder group 32 also can comprise one or more roller cylinders 321 down, and its concrete structure repeats no more.
Following roller cylinder 321 also have piston rod and a piston cylinder, different with last roller cylinder 221 is, the piston rod of following roller cylinder 321 is fixed in waist projection 11 by the oil-feed piece, its piston cylinder then is resisted against the end face of bottom working roll bearing block protuberance 332.All identical about the operation principle of following roller cylinder 321 and situation that multi-cylinder is provided with last roller cylinder 221, comprise also and can and between bottom working roll bearing block 33 and recess 12 inwalls slide plate be set around following roller cylinder 321 piston cylinders, install backing plate etc. at following roller cylinder piston cylinder top, its operation principle and structure and last roller cylinder 221 are basic identical, except following roller cylinder 321 be arranged in the recess of waist projection 11, so do not repeat them here.
About following roller cylinder group 32 and oil circuit setting, fuel feeding type of drive (comprise that centralized Control drives and control drive) respectively, operation principle and other all architectural features of affixed oil-feed piece all the last roller cylinder group 22 with above-mentioned is identical, at this repeated description no longer.
Below in conjunction with respectively scheming with reference to above-mentioned, and Figure 10, come the simple application and the operation principle of simple declaration strip-mill strip work roll bending of the present invention device, wherein Figure 10 is a strip-mill strip work roll bending device overall work schematic diagram of the present invention, work roll bending device 100 of the present invention is installed on the two ends of backing roll and working roll, and be fixedly arranged on the frame, come in and go out between top working roll 200 and the bottom working roll 300 by the rolled piece that breast roll 400 transmits, by double-working rolled piece is rolled, because rolled piece varied in thickness, the milling train opening degree is also adjusted accordingly, top backing up roll device and top working roll in the window of memorial archway 1 to sliding up and down, at this moment it is relatively large to go up the distance that roll-bending device 2 moves, particularly at heavy and medium plate mill, in the rolling operating mode of wide and heavy plate mill, the rolled piece varied in thickness is very big, so milling train opening degree excursion is also very big, but because upper support roll bearing seat 21 in this patent scheme, last roller cylinder group 22 and top working roll bearing block 23 are mass motion, the stroke of above roller cylinder group can't increase, compared to existing technology, its stroke shortens greatly, and lower roll system itself is relatively less with the adjustment of roll line position, the stroke of following roller cylinder group 32 very short; In the operation of rolling, calculate to determine upper and lower roller cylinder group needs to the bending roller force that upper and lower working roll bearing block applied according to the steel rolling process model, to improve effective convexity of carrying roll gap is arranged between the operation roll of mill; Through the oil-feed piece up and down in the roller cylinder group fuel feeding to drive its action, make the size of required power optionally drive roller cylinder group, so that upper and lower working roll bearing block obtains optimal bending roller force, make the working roller bending distortion, effective convexity of carrying roll gap is arranged between the operation roll of mill thereby regulate.
The above only is the schematic specific embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.
Claims (18)
1. strip-mill strip work roll bending device, it is characterized in that, described roll-bending device is located at the both ends of top working roll and bottom working roll, with upper and lower working roll is supported, the control of balance and roller, improve the roll gap convexity of carrying is arranged between the upper and lower working roll of milling train, carry out the control of plate shape, described roll-bending device comprises:
Memorial archway is a frame body, and described memorial archway left and right sides column convexes with a waist projection respectively to the inside;
Last roll-bending device, slidable being installed in the described memorial archway, it is positioned at described waist projection top, and described upward roll-bending device is installed in the end of top working roll;
Following roll-bending device, slidable being installed in the described memorial archway, it is positioned at the described roll-bending device below of going up, and described roll-bending device down is installed in the end of bottom working roll.
2. strip-mill strip work roll bending device according to claim 1, it is characterized in that, the described memorial archway frame-like that is rectangle, form by lower and upper cross-member and left and right pillar, on described left and right pillar, be convexly equipped with to the inside respectively and be formed with a described waist projection, two described waist bump positions are relative, and the downside of two described waist projections and opposite side cave inward and form recess.
3. strip-mill strip work roll bending device according to claim 1 and 2 is characterized in that, the described roll-bending device of going up comprises:
The upper support roll bearing seat, slidable being arranged in the described memorial archway, the left and right sides wall of described upper support roll bearing seat and the inwall of described memorial archway are slidingly connected, described upper support roll bearing seat offers upper support roller installation hole, the part that is positioned at the described upper support roller installation hole left and right sides on the described upper support roll bearing seat extends to form two adjutages downwards, form a holding part between two described adjutages, the bottom of two described adjutages is inwards crooked and extend and form two installation portions;
The top working roll bearing block, be located in two holding parts between the described adjutage, described top working roll bearing block offers the top working roll installation hole, the left and right sides of described top working roll bearing block outwards convexes with protuberance respectively, the corresponding respectively top that is positioned at two described installation portions of the described protuberance of both sides;
Last roller cylinder group, be installed between described installation portion and the described protuberance, can save simultaneously working space on the described memorial archway so that the individual drive of breast roll to be installed, described roller cylinder group one end of going up is connected in described installation portion, the other end is connected in described protuberance, and the two described upward roller cylinder groups that are installed in described top working roll bearing block both sides are synchronization action.
4. strip-mill strip work roll bending device according to claim 3 is characterized in that, the madial wall of each described adjutage with and described installation portion top cave inward jointly and form storage tank, the described roller cylinder group that goes up is arranged in the described storage tank.
5. according to claim 3 or 4 described strip-mill strip work roll bending devices, it is characterized in that two described protuberances are convexly set in the top of described top working roll bearing block two side respectively, make described top working roll bearing block be "T"-shaped.
6. strip-mill strip work roll bending device according to claim 3 is characterized in that, the described roller cylinder group that goes up comprises one or more roller cylinders of going up, and a plurality of when going up the roller cylinder when comprising, a plurality of described roller cylinders of going up are set up in parallel.
7. strip-mill strip work roll bending device according to claim 6 is characterized in that, described upward roller cylinder is an oil hydraulic cylinder, and it has piston rod and piston cylinder;
Described piston rod is fixed in described installation portion end face by an oil-feed piece, and described piston rod and oil-feed piece inside are provided with oil circuit, and described piston rod oil circuit is communicated in described oil-feed piece oil circuit, can be described piston cylinder fuel feeding by described piston rod oil circuit;
Described piston cylinder is resisted against described protuberance bottom surface, is provided with slide plate around the described piston cylinder and between described upper support roll bearing seat and the top working roll bearing block.
8. strip-mill strip work roll bending device according to claim 7 is characterized in that the top of described piston cylinder is equipped with backing plate, and when described piston cylinder was resisted against described protuberance, described backing plate contacted with described protuberance.
9. strip-mill strip work roll bending device according to claim 7 is characterized in that described oil-feed piece is provided with general oil circuit, and each described piston rod oil circuit all is communicated with the general oil circuit of described oil-feed piece.
10. strip-mill strip work roll bending device according to claim 7, it is characterized in that, described oil-feed piece is provided with general oil circuit, have only one to be communicated with in a plurality of described a plurality of described piston rod oil circuits of going up the roller cylinders with the general oil circuit of described oil-feed piece, a plurality of described piston cylinder rod chambers of going up the roller cylinder are connected, and a plurality of described piston cylinder rodless cavities of going up the roller cylinder are connected.
11. strip-mill strip work roll bending device according to claim 7, it is characterized in that, corresponding each described roller cylinder of going up all is provided with an independent oil path in the described oil-feed piece, a plurality of described piston rod oil circuits of going up the roller cylinder are communicated with each self-corresponding described independent oil path respectively, drive a plurality of described roller cylinders of going up independently to control respectively, the described roller cylinder symmetry that goes up that is arranged at described top working roll bearing block both sides drives, so that described top working roll bearing block both sides force balance.
12. strip-mill strip work roll bending device according to claim 2 is characterized in that, described roll-bending device down comprises:
The lower support roll bearing seat, slidable being arranged in the described memorial archway, the left and right sides wall of described lower support roll bearing seat and the inwall of described memorial archway are slidingly connected, and described lower support roll bearing seat offers lower support roller installation hole;
The bottom working roll bearing block, be located between two described waist projections, described bottom working roll bearing block offers the bottom working roll installation hole, the left and right sides of described bottom working roll bearing block outwards convexes with protuberance respectively, the corresponding respectively below that is positioned at two described waist projections of the described protuberance of both sides;
Following roller cylinder group, be arranged in the recess of described waist projection, between described waist projection and described protuberance, to save the memorial archway working space individual drive of breast roll is installed, a described end of roller cylinder group down is connected in described waist projection, the other end is connected in described protuberance, and the two described roller cylinder groups down that are installed in described bottom working roll bearing block both sides are synchronization action.
13. strip-mill strip work roll bending device according to claim 12 is characterized in that two described protuberances are convexly set in the bottom of described bottom working roll bearing block two side respectively, makes described bottom working roll bearing block be inverse-T-shaped.
14. strip-mill strip work roll bending device according to claim 12 is characterized in that, described roller cylinder group down comprises one or more roller cylinders down, and described roller cylinder down is an oil hydraulic cylinder, and it has piston rod and piston cylinder;
Described piston rod is fixed in described waist projection by an oil-feed piece, and described piston rod and oil-feed piece inside are provided with oil circuit, and described piston rod oil circuit is communicated in described oil-feed piece oil circuit, can be described piston cylinder fuel feeding by described piston rod oil circuit;
Described piston cylinder is resisted against described protuberance, is provided with slide plate around the described piston cylinder and between described lower support roll bearing seat and the bottom working roll bearing block.
15. strip-mill strip work roll bending device according to claim 14 is characterized in that the top of described piston cylinder is equipped with backing plate, when described piston cylinder was resisted against described protuberance, described backing plate contacted with described protuberance.
16. strip-mill strip work roll bending device according to claim 14 is characterized in that described oil-feed piece is provided with general oil circuit, each described piston rod oil circuit all is communicated with the general oil circuit of described oil-feed piece.
17. strip-mill strip work roll bending device according to claim 14, it is characterized in that, described oil-feed piece is provided with general oil circuit, have only one to be communicated with in a plurality of described piston rod oil circuit of a plurality of described down roller cylinders with the general oil circuit of described oil-feed piece, a plurality of described piston cylinder rod chambers of roller cylinder down are connected, and a plurality of described piston cylinder rodless cavities of roller cylinder down are connected.
18. strip-mill strip work roll bending device according to claim 14, it is characterized in that, corresponding each described roller cylinder down all is provided with an independent oil path in the described oil-feed piece, a plurality of described piston rod oil circuits of roller cylinder down are communicated with each self-corresponding described independent oil path respectively, drive a plurality of described roller cylinders down independently to control respectively, the described symmetry of roller cylinder down that is arranged at described bottom working roll bearing block both sides drives, so that described bottom working roll bearing block both sides force balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010281795 CN101954381B (en) | 2010-09-15 | 2010-09-15 | Working roll bending device of plate band rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010281795 CN101954381B (en) | 2010-09-15 | 2010-09-15 | Working roll bending device of plate band rolling mill |
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| CN101954381A true CN101954381A (en) | 2011-01-26 |
| CN101954381B CN101954381B (en) | 2012-07-25 |
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| CN 201010281795 Active CN101954381B (en) | 2010-09-15 | 2010-09-15 | Working roll bending device of plate band rolling mill |
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| CN103350109A (en) * | 2013-07-04 | 2013-10-16 | 北京京诚之星科技开发有限公司 | Cold-rolling strip mill |
| CN103506401A (en) * | 2013-09-09 | 2014-01-15 | 芜湖汉光立体停车设备有限公司 | Novel roller adjusting mechanism |
| CN104624639A (en) * | 2015-01-28 | 2015-05-20 | 张汉桥 | Roll machine |
| CN106670236A (en) * | 2017-03-21 | 2017-05-17 | 北京京诚之星科技开发有限公司 | Dual-guiding work roll bending and balancing device of plate and strip rolling mill |
| CN106694551A (en) * | 2016-12-05 | 2017-05-24 | 重集团大连设计研究院有限公司 | Undistributed bending roller structure of variable-section rolling mill |
| CN112692071A (en) * | 2020-12-11 | 2021-04-23 | 陕西龙门钢铁有限责任公司 | Lifting device for replacing working roll of strip steel four-high mill |
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| CN106694551A (en) * | 2016-12-05 | 2017-05-24 | 重集团大连设计研究院有限公司 | Undistributed bending roller structure of variable-section rolling mill |
| CN106694551B (en) * | 2016-12-05 | 2018-04-27 | 一重集团大连设计研究院有限公司 | Section-variable rolling machine undisturbed roller structure |
| CN106670236A (en) * | 2017-03-21 | 2017-05-17 | 北京京诚之星科技开发有限公司 | Dual-guiding work roll bending and balancing device of plate and strip rolling mill |
| CN106670236B (en) * | 2017-03-21 | 2018-07-13 | 北京京诚之星科技开发有限公司 | The dual guiding work roll bending of strip-mill strip and balancing device |
| CN112692071A (en) * | 2020-12-11 | 2021-04-23 | 陕西龙门钢铁有限责任公司 | Lifting device for replacing working roll of strip steel four-high mill |
| CN112692071B (en) * | 2020-12-11 | 2023-10-24 | 陕西龙门钢铁有限责任公司 | Lifting device for replacing working rolls of strip steel four-high mill |
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