CN106001177B - A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method - Google Patents
A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method Download PDFInfo
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- CN106001177B CN106001177B CN201610371361.6A CN201610371361A CN106001177B CN 106001177 B CN106001177 B CN 106001177B CN 201610371361 A CN201610371361 A CN 201610371361A CN 106001177 B CN106001177 B CN 106001177B
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- roll
- strip
- bearing
- roller
- working roll
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0064—Uncoiling the rolled product
Abstract
The present invention relates to a kind of anti-roll fracture rollers of hot-rolled leveling unit, including：At least two support rollers and working roll；At least two support rollers are arranged side by side in two row, and are rotatably arranged on movable pedestal by first bearing component；Working roll is close to be arranged in the lower section of two row support rollers, and working roll is rotatably arranged on by second bearing component on movable pedestal；The bearing block of second bearing component is elastic shaft bearing.A kind of application method of the anti-roll fracture roller of hot-rolled leveling unit is further related to, is included the following steps：By the reel of rolling steel coil to uncoiler, opens coil of strip and strip is penetrated into forward pinch roller；After strip is pushed down by pinch roller, working roll is depressed on the strip between uncoiler and the pinch roller by driving device；When the reel of uncoiler is left in the tail portion of coil of strip innermost circle, driving device lifts working roll.The anti-roll fracture roll structure is reliable, can absorb vibration and impact that supplied materials shape wave is brought, ensures rolling stability, improves strip surface quality and performance.
Description
Technical field
The present invention relates to technical field of steel rolling, more particularly to the anti-roll fracture roller of a kind of hot-rolled leveling unit and its user
Method.
Background technology
Hot-rolled leveling unit is important the mating unit of hot rolling main line, major function be to strip carry out smooth, bundling or
Rewinding.Wherein, smooth rolled to the main rolling line of hot rolling using certain elongation percentage (being usually 0.5%-4%) as control parameter
And the strip for after cooling down (being cooled to 60 DEG C or less) is rolled.The purpose of skin pass rolling be eliminate yield point elongation, expand it is moulding
Range improves processing performance；Improve the mechanical performance and surface quality of strip；Eliminate or reduce turriform.
The specific equipment composition of hot-rolled leveling unit and device structure of domestic each steel mill are not quite similar, but walking beam, open
Volume machine, access device, planisher, coiling machine, upper volume trolley, coil stripping car etc. are that basic equipment forms.In recent years, Thin Specs
Product development dynamics increases, but is restricted by hot-rolled process itself, and the plate shape of Thin Specs (2.0mm and following) strip is difficult to obtain
It preferably controls, needs to improve the defects of shape wave is big, plate shape is bad by skin pass mill group.
Anti-roll fracture roller wear-resisting property in the prior art in skin pass mill group is poor, and structure is not firm enough, resists that strip is counter to be made
Ability firmly is limited, and the vibration and impact that supplied materials shape wave can not be overcome to bring cause the rolling of strip to be fluctuated, can not ensure band
The surface quality and performance of steel.
Invention content
The present invention provides a kind of anti-roll fracture roller of hot-rolled leveling unit and its application method, solves or part solves
The wear-resisting property of skin pass mill group is poor in the prior art, and structure is not firm enough, and the vibration and impact that supplied materials shape wave is brought lead to strip
Rolling fluctuation, the technical issues of can not ensureing the surface quality and performance of strip realizes and provides a kind of structure and reliably prevent
Volume fracture roller, can effectively absorb the vibration and impact that supplied materials shape wave is brought, ensure rolling stability, improve strip surface quality and
The technique effect of performance.
The anti-roll fracture roller of a kind of hot-rolled leveling unit provided by the invention includes：
At least two support rollers are arranged side by side in two row, and are rotatably arranged on movable pedestal by first bearing component
On；
Working roll is close to be arranged in the lower section of the two row support rollers, and the working roll is rotated by second bearing component
It is arranged on the movable pedestal；The bearing block of the second bearing component is elastic shaft bearing；
Wherein, the bearing of the bearing of the first bearing component and the second bearing component is self-lubricating bearing；It is described
Movable pedestal is connect with driving device, and the driving device drives the movable pedestal and the working roll to be depressed into uncoiling
On strip between machine and pinch roller, or lifted from the strip.
Preferably, the anti-roll fracture roller includes 4 support rollers, wherein 2 one row of support roller composition, another 2
The support roller forms another row；
The support roller and the working roll are the identical steel rider of diameter；The case hardness of the steel rider is 58-62HRC,
3~4mm of hardness thickness.
Preferably, the first bearing component further includes：Bearing block, gland and end cap；
The bearing block is bolted on the movable pedestal；
The support roller is arranged by the self-lubricating bearing in the bearing block；
The gland and the end cap are fixedly connected with the bearing block.
Preferably, the elastic shaft bearing includes：Wing-shaped bearing, shape of chinese word Ji bearing, studs and spring；
The wing-shaped bearing is bolted on the movable pedestal；
One end of the studs is fixedly connected with the wing-shaped bearing, and the other end is fixedly connected with a nut；It is described
Spring is set on the studs, and bottom end resists the nut；The shape of chinese word Ji bearing is pressed on the spring.
Preferably, the second bearing component further includes：Gland and end cap；
The working roll is arranged by the self-lubricating bearing on the shape of chinese word Ji bearing；
The gland and the end cap are fixedly connected with the shape of chinese word Ji bearing.
Preferably, the driving device includes：Fixed frame, swing frame, lifting hydraulic cylinder, traversing hydraulic cylinder；
The lifting hydraulic cylinder is connect with the fixed frame；
Described swing frame one end is hinged on the fixed frame, and the other end is hinged the output of the lifting hydraulic cylinder
End；
The traversing hydraulic cylinder is fixedly connected with the swing frame；The movable pedestal is slidably arranged in the swing
On frame；
The output end of the traversing hydraulic cylinder is fixedly connected with the movable pedestal, drives the movable pedestal opposite
The swing frame sliding.
Preferably, the driving device further includes：Control system, stretches out retract valve, pressure sensor and position at hydraulic valve
Displacement sensor；
The hydraulic valve is arranged on the fluid pressure line of the lifting hydraulic cylinder；
The stretching retract valve is arranged on the fluid pressure line of the traversing hydraulic cylinder；
The pressure sensor is used to detect the pressure between the working roll and the strip；
Institute's displacement sensors are used to detect the displacement of the movable pedestal；
The control system is connect with the hydraulic valve, stretching retract valve, pressure sensor and displacement sensor.
A kind of application method of the anti-roll fracture roller of hot-rolled leveling unit provided by the invention, includes the following steps：
By the reel of rolling steel coil to uncoiler, opens the coil of strip and strip is penetrated into forward pinch roller；
After the strip is pushed down by the pinch roller, working roll is depressed into the uncoiler and the folder by driving device
It send on the strip between roller；Meanwhile the driving device drives the work roll shifting to keep it synchronous with uncoiler holding；
When the reel of the uncoiler is left in the tail portion of the coil of strip innermost circle, the driving device is by the working roll
It lifts.
Preferably, working roll is depressed into the strip between the uncoiler and the pinch roller by the driving device
On；Meanwhile the driving device drives the work roll shifting to keep it synchronous with uncoiler holding；Including：
Control system opens hydraulic valve, and lifting hydraulic cylinder drives movable pedestal and the working roll to carry out pressing action；
The control system, which is opened, stretches out retract valve, movable pedestal and the working roll described in traversing Driven by Hydraulic Cylinder into
Row it is traversing, the working roll it is traversing synchronous with the traversing holding of the uncoiler；
Pressure sensor detects the pressure value after the working roll pushes, and displacement sensor detects the displacement of the working roll
Value.
Preferably, the control system adjusts the aperture of the hydraulic valve, it is 10~15bar to make the pressure value；
The control system adjusts the aperture for stretching out retract valve, makes the transverse moving speed of the working roll and the uncoiling
The transverse moving speed of machine is identical.
One or more technical solutions provided herein, have at least the following technical effects or advantages：
1, it is rotatably arranged on movable pedestal, is worked by first bearing component as a result of at least two support rollers
Roller is close to be arranged in the lower section of two row support rollers, and is rotatably arranged on movable pedestal by second bearing component, support roller
The strip reaction force born with the working roll that strip is in direct contact is disperseed, structure is more reliable；First bearing group and second
The bearing of bearing group all using self-lubricating bearing, is not provided with axle envelope, when can effectively avoid roller high speed rotation, common drier oil profit
Drier oil caused by sliding mode throws away, drops onto the problem of belt steel surface causes greasy dirt, quality not to conform to, and is also avoided that high-speed and high-temperature will
The problem of axle envelope is melted；Working roll uses elastic shaft bearing, and during roller is put into, spring can effectively absorb supplied materials shape wave band
The vibration and impact come ensures that rolling stability, structure are more reliable.In this way, efficiently solving skin pass mill group in the prior art
Wear-resisting property it is poor, not firm enough the technical problem of structure realizes and provides a kind of structure reliably anti-roll fracture roller, can be effective
Vibration and impact that supplied materials shape wave is brought are absorbed, ensures rolling stability, improves the technique effect of strip surface quality and performance.
2, as a result of the pressing time of reasonable setting working roll, it ensure that almost the entire volume band steel capital receives anti-roll disconnected
The depressing force of roller is split, recurvation (opposite with the radian direction that coil of strip is original) is formed, coil of strip is prevented to be pulled off；Meanwhile building Zhang Sheng
During production, it is effectively relieved due to rolling fluctuation caused by supplied materials shape wave；By the traversing and uncoiler for controlling anti-roll fracture roller
Traversing synchronization avoids the strip on reel of uncoiler and the relative friction between working roll that strip is caused to scratch.In this way, effectively solving
It has determined the vibration that brings of supplied materials shape wave of skin pass mill group in the prior art and impact causes the rolling of strip to be fluctuated, can not ensure band
The technical issues of surface quality and performance of steel, realizes the skin pass rolling stability for effectively improving thin gauge strip, surface matter
The technique effect of amount and performance.
Description of the drawings
Fig. 1 is the configuration diagram of hot-rolled leveling unit provided by the invention and anti-roll fracture roller；
Fig. 2 is the front view of anti-roll fracture roller in Fig. 1；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the structural front view of support roller and working roll in Fig. 1；
Fig. 5 is the left view of Fig. 4.
(component that each label represents in attached drawing is followed successively by：It is 1 fixed frame, 2 swing frames, 3 lifting hydraulic cylinders, 4 traversing
Hydraulic cylinder, 5 movable pedestals, 6 support rollers, 7 working rolls, 8 pinch rollers, 9 uncoilers, 10 coil of strips, 11 bearing blocks, 12 wing-shaped branch
Seat, 13 shape of chinese word Ji bearings, 14 self-lubricating bearings, 15 springs, 16 studs)
Specific implementation mode
The embodiment of the present application provides a kind of anti-roll fracture roller of hot-rolled leveling unit and its application method, solves or part
The wear-resisting property for solving skin pass mill group in the prior art is poor, and structure is not firm enough, and the vibration and impact that supplied materials shape wave is brought are led
The technical issues of causing the rolling of strip to fluctuate, can not ensure the surface quality and performance of strip, realizing a kind of structure of offer can
The anti-roll fracture roller leaned on can effectively absorb the vibration and impact that supplied materials shape wave is brought, and ensure rolling stability, improve belt steel surface
The technique effect of quality and performance.
Referring to attached drawing 1 and 4, a kind of anti-roll fracture roller of hot-rolled leveling unit provided by the invention includes：At least two supports
Roller 6 and working roll 7.
At least two support rollers 6 are arranged side by side in two row, and are rotatably arranged on movable pedestal 5 by first bearing component
On.Working roll 7 is close to be arranged in the lower section of two row support rollers 6, and working roll 7 is rotatably arranged on removable by second bearing component
On pedestal 5；The bearing block of second bearing component is elastic shaft bearing.
Wherein, the bearing of the bearing of first bearing component and second bearing component is self-lubricating bearing 14；Movable pedestal 5
It is connect with driving device, driving device driving movable pedestal 5 and working roll 7 are depressed into the band between uncoiler 9 and pinch roller 8
On steel, or lifted from strip.
Further, referring to attached Figure 4 and 5, anti-roll fracture roller includes 4 support rollers 6, wherein 2 compositions of support roller 6 one
Row, another 2 support rollers 6 form another row；Support roller 6 and working roll 7 are the identical steel rider of diameter；The case hardness of steel rider is
58-62HRC, hardness 3~4mm of thickness, therefore working roll 7 and the surface abrasion resistance of support roller 6 are good.The diameter of 5 rollers is close,
Ensure there is no gap between support roller 6 and working roll 7, otherwise cannot effectively work.
Wherein, 4 support rollers 6 of anti-roll fracture roller, it is anti-to have disperseed the strip that the working roll being in direct contact with strip 7 is born
Active force, structure are more reliable；All using self-lubricating bearing 14, it is not provided with axle envelope, when can effectively avoid roller high speed rotation,
Drier oil caused by common dry oil lubrication mode throws away, drops onto the problem of belt steel surface causes greasy dirt, quality not to conform to, and is also avoided that
The problem of high-speed and high-temperature melts axle envelope.
Further, referring to attached drawing 2 and 3, first bearing component further includes：Bearing block 11, gland and end cap；Bearing block 11
It is bolted on movable pedestal 5；Support roller 6 is arranged by self-lubricating bearing in bearing block 11；Gland and end cap
It is fixedly connected with bearing block 11.
Further, referring to attached drawing 2 and 3, elastic shaft bearing includes：Wing-shaped bearing 12, shape of chinese word Ji bearing 13, double end spiral shell
Column 16 and spring 15；Wing-shaped bearing 12 is bolted on movable pedestal 5；One end of studs 16 and wing-shaped
Bearing 12 is fixedly connected, and the other end is fixedly connected with a nut；Spring 15 is set on studs 16, and bottom end resists nut；It is several
Font bearing 13 is pressed on spring 15.
Wherein, working roll 7 uses elastic shaft bearing, and during working roll 7 is put into, spring 15 can effectively absorb supplied materials wave
The vibration and impact that shape is brought ensure that rolling stability, structure are more reliable.
Further, second bearing component further includes：Gland and end cap；Working roll 7 is arranged by self-lubricating bearing 14
On shape of chinese word Ji bearing 13；Gland and end cap are fixedly connected with shape of chinese word Ji bearing 13.
Further, referring to attached drawing 1, driving device includes：It is fixed frame 1, swing frame 2, lifting hydraulic cylinder 3, traversing
Hydraulic cylinder 4；Lifting hydraulic cylinder 3 is connect with fixed frame 1；2 one end of swing frame is hinged on fixed frame 1, and the other end is hinged
The output end of lifting hydraulic cylinder 3；Traversing hydraulic cylinder 4 is fixedly connected with swing frame 2；Movable pedestal 5 is slidably arranged in swing
On frame 2；The output end of traversing hydraulic cylinder 4 is fixedly connected with movable pedestal 5, drives 5 relative swing frame 2 of movable pedestal
Sliding.
Further, driving device further includes：Control system, hydraulic valve stretch out retract valve, pressure sensor and displacement biography
Sensor；Hydraulic valve is arranged on the fluid pressure line of lifting hydraulic cylinder 3；It stretches out retract valve and the hydraulic tube in traversing hydraulic cylinder 4 is set
On the road；Pressure sensor is used to detect the pressure between working roll 7 and strip；Displacement sensor is for detecting movable pedestal 5
Displacement；Control system is connect with hydraulic valve, stretching retract valve, pressure sensor and displacement sensor.
A kind of application method of the anti-roll fracture roller of hot-rolled leveling unit provided by the invention, includes the following steps：
S1：By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.
S2：After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device
Strip on；Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving；It specifically includes：S201：Control
System opens hydraulic valve, and lifting hydraulic cylinder 3 drives movable pedestal 5 and working roll 7 to carry out pressing action.S202：Control system
Open and stretch out retract valve, it is traversing that traversing hydraulic cylinder 4 drives movable pedestal 5 and working roll 7 to carry out, working roll 7 it is traversing with open
The traversing holding of volume machine 9 synchronizes, and the relative friction between strip and working roll 7 on 9 reel of uncoiler is effectively avoided to cause band
Steel scratches.S203：Pressure sensor detects the pressure value after working roll 7 pushes, and displacement sensor detects the displacement of working roll 7
Value.
S3：When the reel of uncoiler 9 is left in the tail portion of coil of strip innermost circle, driving device lifts working roll 7.
Further, in 7 course of work of working roll, the control mode of anti-roll fracture roller is to lift liquid with anti-roll fracture roller
The pressure difference of 3 rod chamber of cylinder pressure and rodless cavity object in order to control, the pressure being applied on strip can be by adjusting hydraulic valve
Opening degree is adjusted, and control system adjusts the aperture of hydraulic valve, and it is 10~15bar to make pressure value.
Control system adjusts the aperture for stretching out retract valve, makes the transverse moving speed of working roll 7 with the transverse moving speed phase of uncoiler 9
Together.Control system is set as the PI adjustment factors of anti-roll fracture roller：Proportionality coefficient be 1.5~2.5, integral coefficient be 12~
16, dead zone is 30~50, and the output upper limit is 1900~2000, and bottoming is -12~-8.Other control ginsengs of anti-roll fracture roller
Number include it is anti-roll fracture roller return to middle position gain be 35~45.
Technical scheme of the present invention is described in detail with reference to the accompanying drawings and examples.
Embodiment one
The hot-rolled leveling unit it is anti-roll fracture roller structure be：
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product；Support roller 6 and working roll 7 are solid construction, and diameter is equal
For 200mm, hardness 58HRC；14 model BS2-2214-2CS/VT134 of self-lubricating bearing；First bearing component includes：Commonly
Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes：Wing-shaped bearing 12, shape of chinese word Ji
Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior
Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler
Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid
It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed
4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps：
S1：By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially：
The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.6mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9
Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after
Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2：After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device
Strip on；Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure
Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure
It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal
5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis：In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity
Object；The pressure being applied on strip is set as 10bar, and the proportionality coefficient of anti-roll fracture roller is set as 2；Integral coefficient is 15；Dead zone
It is 40；It is 2000 to export the upper limit；Bottoming is -10；The gain that anti-roll fracture roller returns to middle position is 40；Traversing hydraulic cylinder is stretched
The opening degree for going out retract valve is 30%；The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3：When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip
Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation
Fluctuation that coil of strip shape wave is brought, stable rolling.
Embodiment two
The hot-rolled leveling unit it is anti-roll fracture roller structure be：
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product；Support roller 6 and working roll 7 are solid construction, and diameter is equal
For 200mm, hardness 58HRC；14 model BS2-2214-2CS/VT134 of self-lubricating bearing；First bearing component includes：Commonly
Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes：Wing-shaped bearing 12, shape of chinese word Ji
Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior
Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler
Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid
It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed
4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps：
S1：By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially：
The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.6mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9
Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after
Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2：After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device
Strip on；Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure
Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure
It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal
5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis：In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity
Object；The pressure being applied on strip is set as 11bar, and the proportionality coefficient of anti-roll fracture roller is set as 1.6；Integral coefficient is 13；Extremely
Area is 34；It is 1980 to export the upper limit；Bottoming is -11；The gain that anti-roll fracture roller returns to middle position is 37；Traversing hydraulic cylinder
The opening degree for stretching out retract valve is 30%；The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3：When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip
Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation
Fluctuation that coil of strip shape wave is brought, stable rolling.
Embodiment three
The hot-rolled leveling unit it is anti-roll fracture roller structure be：
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product；Support roller 6 and working roll 7 are solid construction, and diameter is equal
For 200mm, hardness 58HRC；14 model BS2-2214-2CS/VT134 of self-lubricating bearing；First bearing component includes：Commonly
Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes：Wing-shaped bearing 12, shape of chinese word Ji
Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior
Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler
Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid
It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed
4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps：
S1：By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially：
The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.8mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9
Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after
Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2：After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device
Strip on；Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure
Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure
It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal
5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis：In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity
Object；The pressure being applied on strip is set as 12bar, and the proportionality coefficient of anti-roll fracture roller is set as 1.7；Integral coefficient is 14；Extremely
Area is 38；It is 1950 to export the upper limit；Bottoming is -10；The gain that anti-roll fracture roller returns to middle position is 38；Traversing hydraulic cylinder
The opening degree for stretching out retract valve is 30%；The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3：When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip
Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation
Fluctuation that coil of strip shape wave is brought, stable rolling.
Example IV
The hot-rolled leveling unit it is anti-roll fracture roller structure be：
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product；Support roller 6 and working roll 7 are solid construction, and diameter is equal
For 200mm, hardness 58HRC；14 model BS2-2214-2CS/VT134 of self-lubricating bearing；First bearing component includes：Commonly
Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes：Wing-shaped bearing 12, shape of chinese word Ji
Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior
Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler
Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid
It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed
4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps：
S1：By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially：
The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.7mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9
Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after
Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2：After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device
Strip on；Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure
Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure
It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal
5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis：In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity
Object；The pressure being applied on strip is set as 14bar, and the proportionality coefficient of anti-roll fracture roller is set as 2.2；Integral coefficient is 15；Extremely
Area is 45；It is 1920 to export the upper limit；Bottoming is -9；The gain that anti-roll fracture roller returns to middle position is 42；Traversing hydraulic cylinder
The opening degree for stretching out retract valve is 30%；The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3：When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip
Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation
Fluctuation that coil of strip shape wave is brought, stable rolling.
Embodiment five
The hot-rolled leveling unit it is anti-roll fracture roller structure be：
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product；Support roller 6 and working roll 7 are solid construction, and diameter is equal
For 200mm, hardness 58HRC；14 model BS2-2214-2CS/VT134 of self-lubricating bearing；First bearing component includes：Commonly
Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes：Wing-shaped bearing 12, shape of chinese word Ji
Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior
Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler
Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid
It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed
4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps：
S1：By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially：
The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.9mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9
Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after
Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2：After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device
Strip on；Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure
Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure
It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal
5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis：In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity
Object；The pressure being applied on strip is set as 14.5bar, and the proportionality coefficient of anti-roll fracture roller is set as 2.4；Integral coefficient is 16；
Dead zone is 48；It is 1910 to export the upper limit；Bottoming is -8；The gain that anti-roll fracture roller returns to middle position is 44；Traversing hydraulic cylinder
Stretching retract valve opening degree be 30%；The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3：When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip
Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation
Fluctuation that coil of strip shape wave is brought, stable rolling.
One or more technical solutions provided herein, have at least the following technical effects or advantages：
1, it is rotatably arranged on movable pedestal by first bearing component as a result of at least two support rollers 6, work
Make roller 7 to be close to be arranged in the lower section of two row support rollers 6, and be rotatably arranged on movable pedestal 5 by second bearing component, is propped up
Support roller 6 has disperseed the strip reaction force that the working roll being in direct contact with strip 7 is born, and structure is more reliable；First bearing group
And the bearing of second bearing group is not provided with axle envelope all using self-lubricating bearing 14, it is general when can effectively avoid roller high speed rotation
Drier oil caused by logical dry oil lubrication mode throws away, drops onto the problem of belt steel surface causes greasy dirt, quality not to conform to, and is also avoided that height
The problem of fast high temperature melts axle envelope；Working roll 7 uses elastic shaft bearing, and during working roll 7 is put into, spring 15 can be effective
Vibration and impact that supplied materials shape wave is brought are absorbed, ensures that rolling stability, structure are more reliable.In this way, efficiently solving existing
The wear-resisting property of skin pass mill group is poor in technology, not firm enough the technical problem of structure, realizes a kind of structure of offer and reliably prevents
Volume fracture roller, can effectively absorb the vibration and impact that supplied materials shape wave is brought, ensure rolling stability, improve strip surface quality and
The technique effect of performance.
2, as a result of the pressing time of reasonable setting working roll 7, it ensure that almost the entire volume band steel capital receives anti-roll
It is broken the depressing force of roller, recurvation (opposite with the radian direction that coil of strip is original) is formed, coil of strip is prevented to be pulled off；Meanwhile it being opened building
In production process, it is effectively relieved due to rolling fluctuation caused by supplied materials shape wave；By the traversing and uncoiling for controlling anti-roll fracture roller
9 traversing synchronization of machine avoids the relative friction between strip and working roll 7 on 9 reel of uncoiler that strip is caused to scratch.In this way,
Efficiently solving vibration that the supplied materials shape wave of skin pass mill group in the prior art is brought and impact causes the rolling of strip to be fluctuated, can not
Ensure strip surface quality and performance the technical issues of, realize effectively improve thin gauge strip skin pass rolling stability,
The technique effect of surface quality and performance.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not limited to this hair
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection domain within.
Claims (4)
1. a kind of anti-roll fracture roller of hot-rolled leveling unit, which is characterized in that the anti-roll fracture roller includes：
At least two support rollers are arranged side by side in two row, and are rotatably arranged on movable pedestal by first bearing component；Institute
Stating first bearing component includes：Bearing block, gland and end cap；The bearing block is bolted on the movable pedestal
On；The support roller is arranged by self-lubricating bearing in the bearing block；The gland and the end cap and the bearing block
It is fixedly connected；
Working roll is close to be arranged in the lower section of the two row support rollers, and the working roll is rotated by second bearing component to be arranged
On the movable pedestal；The bearing block of the second bearing component is elastic shaft bearing；The elastic shaft bearing includes：Wing
Wing shape bearing, shape of chinese word Ji bearing, studs and spring；The wing-shaped bearing is bolted on the movable pedestal
On；One end of the studs is fixedly connected with the wing-shaped bearing, and the other end is fixedly connected with a nut；The spring pocket
It is located on the studs, bottom end resists the nut；The shape of chinese word Ji bearing is pressed on the spring；The working roll
It is arranged on the shape of chinese word Ji bearing by self-lubricating bearing；The second bearing component further includes：Gland and end cap；The pressure
Lid and the end cap are fixedly connected with the shape of chinese word Ji bearing；
Wherein, the movable pedestal is connect with driving device, and the driving device drives the movable pedestal and the work
It is depressed on the strip between uncoiler and pinch roller as roller, or is lifted from the strip, the driving device includes：It is fixed
Frame, swing frame, lifting hydraulic cylinder, traversing hydraulic cylinder；The lifting hydraulic cylinder is connect with the fixed frame；The swing
Frame one end is hinged on the fixed frame, and the other end is hinged the output end of the lifting hydraulic cylinder；The traversing hydraulic cylinder
It is fixedly connected with the swing frame；The movable pedestal is slidably arranged on the swing frame；The traversing hydraulic cylinder
Output end be fixedly connected with the movable pedestal, drive movable pedestal swing frame sliding relatively.
2. anti-roll fracture roller as described in claim 1, which is characterized in that
The anti-roll fracture roller includes 4 support rollers, wherein 2 one row of support roller composition, another 2 support roller compositions
Another row；
The support roller and the working roll are the identical steel rider of diameter；The case hardness of the steel rider is 58-62HRC, hardness
3~4mm of thickness.
3. anti-roll fracture roller as described in claim 1, which is characterized in that
The driving device further includes：Control system, stretches out retract valve, pressure sensor and displacement sensor at hydraulic valve；
The hydraulic valve is arranged on the fluid pressure line of the lifting hydraulic cylinder；
The stretching retract valve is arranged on the fluid pressure line of the traversing hydraulic cylinder；
The pressure sensor is used to detect the pressure between the working roll and the strip；
Institute's displacement sensors are used to detect the displacement of the movable pedestal；
The control system is connect with the hydraulic valve, stretching retract valve, pressure sensor and displacement sensor.
4. a kind of application method of the anti-roll fracture roller of hot-rolled leveling unit, the anti-roll fracture roller of hot-rolled leveling unit are wanted for right
Seek the anti-roll fracture roller of 1~3 any one of them, which is characterized in that include the following steps：
By the reel of rolling steel coil to uncoiler, opens the coil of strip and strip is penetrated into forward pinch roller；
After the strip is pushed down by the pinch roller, working roll is depressed into the uncoiler and the pinch roller by driving device
Between strip on；Meanwhile the driving device drives the work roll shifting to keep it synchronous with uncoiler holding；Control
System opens hydraulic valve, and lifting hydraulic cylinder drives movable pedestal and the working roll to carry out pressing action；The control system
It opens and stretches out retract valve, movable pedestal and the working roll described in traversing Driven by Hydraulic Cylinder carry out traversing, the working roll
It is traversing synchronous with the traversing holding of the uncoiler；Pressure sensor detects the pressure value after the working roll pushes, and displacement passes
Sensor detects the shift value of the working roll；The control system adjusts the aperture of the hydraulic valve, and it is 10 to make the pressure value
~15bar；The control system adjusts the aperture for stretching out retract valve, makes the transverse moving speed of the working roll and the uncoiling
The transverse moving speed of machine is identical；
When the reel of the uncoiler is left in the tail portion of the coil of strip innermost circle, the driving device lifts the working roll
It rises.
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| CN201610371361.6A CN106001177B (en) | 2016-05-30 | 2016-05-30 | A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method |
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| CN201610371361.6A CN106001177B (en) | 2016-05-30 | 2016-05-30 | A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method |
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| CN106001177B true CN106001177B (en) | 2018-10-16 |
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| CN111604697B (en) * | 2020-05-31 | 2021-05-14 | 日照宝华新材料有限公司 | Control method for transverse folding defect of thin-specification low-carbon steel |
| CN113319120B (en) * | 2021-05-13 | 2023-03-10 | 安钢集团冷轧有限责任公司 | Method for treating overflow edge of cold rolling coiler |
| CN113941605B (en) * | 2021-10-14 | 2023-10-27 | 中冶南方工程技术有限公司 | Tear-resistant roller control method |
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|---|---|---|---|---|
| CN2865896Y (en) * | 2006-02-24 | 2007-02-07 | 宝山钢铁股份有限公司 | Deep bending roller of three-roll uncoiler |
| CN201579305U (en) * | 2009-12-10 | 2010-09-15 | 中冶南方工程技术有限公司 | Deep roll-bending device capable of horizontally moving |
| CN203316518U (en) * | 2013-06-13 | 2013-12-04 | 无锡建发机器制造有限公司 | High-strength extra-thick wide hot rolling steel plate uncoiling device |
| CN103935723A (en) * | 2014-04-16 | 2014-07-23 | 攀钢集团工程技术有限公司 | Buffering type bearing seat |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100571349B1 (en) * | 2004-06-11 | 2006-04-17 | 신형운 | Feed roll device |
| KR100806775B1 (en) * | 2006-12-01 | 2008-02-28 | 주식회사 디엠씨테크 | Uncoiler of single type |
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2016
- 2016-05-30 CN CN201610371361.6A patent/CN106001177B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865896Y (en) * | 2006-02-24 | 2007-02-07 | 宝山钢铁股份有限公司 | Deep bending roller of three-roll uncoiler |
| CN201579305U (en) * | 2009-12-10 | 2010-09-15 | 中冶南方工程技术有限公司 | Deep roll-bending device capable of horizontally moving |
| CN203316518U (en) * | 2013-06-13 | 2013-12-04 | 无锡建发机器制造有限公司 | High-strength extra-thick wide hot rolling steel plate uncoiling device |
| CN103935723A (en) * | 2014-04-16 | 2014-07-23 | 攀钢集团工程技术有限公司 | Buffering type bearing seat |
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