CN204059089U - The migration roller of fiber web machine - Google Patents
The migration roller of fiber web machine Download PDFInfo
- Publication number
- CN204059089U CN204059089U CN201420282184.0U CN201420282184U CN204059089U CN 204059089 U CN204059089 U CN 204059089U CN 201420282184 U CN201420282184 U CN 201420282184U CN 204059089 U CN204059089 U CN 204059089U
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- roller
- migration
- loading element
- loading
- bag district
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- 230000005012 migration Effects 0.000 title claims abstract description 74
- 238000013508 migration Methods 0.000 title claims abstract description 74
- 239000000835 fiber Substances 0.000 title claims abstract description 38
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 230000003139 buffering effect Effects 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 6
- 241001131688 Coracias garrulus Species 0.000 description 117
- 239000003921 oil Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0206—Controlled deflection rolls
- D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/0073—Accessories for calenders
- D21G1/008—Vibration-preventing or -eliminating devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0226—Bearings
Landscapes
- Paper (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model relates to the migration roller of fiber web machine, this roller (10) comprises axle (12A) and axle head (12), shell (10A) and at least one loading element (20), loading element is for loading shell (10A) and being arranged in the pressure bag district (33) of axle (12A), and roller (10) and another roller (11) form nip (N).The migration roller (10) of fiber web machine comprises buffer unit (24, 26), it is at least one loading element (20) of migration roller (10), with the vibration of the shell of buffer roll (10A), buffer unit comprises flexible member (26) and buffer element (24), and at least one loading element (20) freely moves along loading direction, or loading element (20) and be all arranged in pressure bag district for the piston (21) of mobile loading element (20), and flexible member is the gas compartment, the gas of high compression is arranged in the pressure bag district between loading element (20) and piston.
Description
Technical field
The utility model relates to migration roller.The pressure roller of the migration roller especially calender of fiber web machine.
Background technology
In fiber web machine, fiber web is produced and is processed in the assembly formed by multiple device arranged continuously along production line.Typical production process line comprises head box, wet end and press section and drying section subsequently and reel machine.Produce process line and also comprise miscellaneous equipment for finishing fiber web material and part, such as, sizing applicator, calender, painting part.Produce process line and also comprise at least one up-coiler and coil packing device of forming user volume.In this description and the claims of enclosing, fiber web refers to such as paper web, board web, toilet tissue web.In each part and equipment, some different parts can vibrate.Such as, vibration can occur in nip, this nip is formed between the two elements, typically formed between two rolls, and nip can pass through the element of roller, band, boots (shoe) or correspondence and correspondence or different types of reaction member (counter-element) formed, at least one in nip forming element is usually roller.Roller can be migration roller, and it is in the nip of the press section of fiber web machine and the nip of calender.In press. nips, remove the water in fiber web, in calander nip, fiber web is processed, thus obtains the surface properties such as such as glossiness.Fiber web freely through overpressure zone or by band, felt, net or corresponding fabric-supported through overpressure zone.In the nip, fiber web is squeezed, to remove the water in web, or affects the attribute of web, and is controlled the nip pressure of the longitudinal direction of horizontal direction, the i.e. roller of fiber web by migration roller.
In the calender design of prior art, the unbalance and mistake circularity of roller and the first critical speed of roller only can be considered in power aspect.The design of roller, framework and charger has come in the following manner, that is, check minimum of a value and the maximum of quiet loading, and guarantee that the first intrinsic frequency of the standard and structure that can not exceed tensioning or skew is on maximum roller speed.
In calender, a kind of vibration mode has been stupefied (barring), and it is caused by the resonance that roller is right, and wherein calender vibration makes nip load change.The change of nip load forms the soft lid (soft cover) of calender gradually, makes the cross section of roller will be angled.The resonance that the roller of calender is right is unavoidable, only has the size of roller and framework to have an impact to the frequency that resonance occurs.When resonating, the heat energy produced by the vibration of the buffering in mechanical system, i.e. system element is only had to limit amplitude.Buffering is such as regarded as the internal lag effect (effect is very little) of material, with the friction loss be regarded as relatively on slidingsurface that rubs.In calender, maximum buffering is associated with the piston movement of the loading element of migration roller and occurs.It should be noted that this motion is sufficiently long, thus only can not remain the elastic deformation of the seal of loading element.
Migration roller comprises shell, and this shell surrounds the loading axle with loading area, is provided with the load shoe of piston in described loading area.Loading area is rigidly connected to the shell of roller, because the very thin thickness of the lubricating oil between load shoe and shell.Load shoe is supported on by pressure medium volume (pressure medium volume), typically oily volume and loads on axle, and this medium volume is also obvious rigidity, because along with piston moves, move media area becomes large, and flow channel then becomes very narrow.
In EP patent publication us 1411254B1, disclose a kind of intermediate calender rolls of calender, this calender has Bunper assembly, and this Bunper assembly has inertia mass.Roller has the roller shell surrounding inner space, Bunper assembly is provided with in inner space, described Bunper assembly has at least one passive oscillating buffer, the buffer frequency of this passive oscillating buffer is in roller or comprises under the intrinsic frequency of roller system of roller, has namely been formed stupefied critical.According to an example of intermediate calender rolls, in the region at least between oscillating buffer and roller shell, inner space is full of liquid, and its viscosity exceedes predetermined minimum amount.In this roller, buffer will be set to a certain buffering frequency.This disclosed roller is tube roll, instead of migration roller.
Summary of the invention
The purpose of this utility model is to provide a kind of mode and the migration roller that control the vibration of fiber web machine, and wherein the defect of prior art and problem are eliminated or at least minimize.
Particularly, the purpose of this utility model is to provide and a kind ofly controls the mode of vibration of the migration roller of the calender of fiber web machine and the migration roller of the calender of fiber web machine.
In order to realize object above-mentioned, the application proposes following technical scheme.
In an arrangement, a kind of vibration controlling fiber web machine is proposed, the mode of the vibration of calender particularly, described fiber web machine comprises at least one roller, described roller comprises axle and axle head, shell and at least one loading element, described loading element is for loading shell and being arranged in the pressure bag district of described axle, described roller and another roller form nip, it is characterized in that, described mode comprises by vibration modeling, simultaneously in conjunction with the restriction of quiet loading, and the best amplitude providing at least one loading element of at least one roller or roller support component to move under one or more intrinsic frequency is to design at least one roller of described fiber web machine, described intrinsic frequency causes the pressure in described nip or nip load to change, thus maximum cushioning is produced in nip-vibration.
Preferably, described mode also comprises calculating resonance, in view of critical resonance is determined in vibration, and the relative attenuation of critical resonance is farthest limited between 50 – 1000Hz.
Preferably, in described mode, design migration roller, described mode is further comprising the steps of, is designed for the buffer unit of at least one loading element of described migration roller, in order to the vibration of the shell of described migration roller of decaying.
Preferably, in described mode, design migration roller, described mode is further comprising the steps of, design has the bracing or strutting arrangement of the axle head for supporting described migration roller of buffer element, in order to cushion the vibration of described roller, and/or be designed for the bracing or strutting arrangement loading and there is the cylinder of buffer element, in order to cushion the vibration of described roller.
Preferably, described mode is further comprising the steps of, and design has the bracing or strutting arrangement of buffer element, in order to support the axle head of another roller, another roller described and at least one roller form nip, and/or are designed for the bracing or strutting arrangement with buffer element loading cylinder, in order to cushion the vibration of described roller.
In another scheme, propose a kind of for fiber web machine, be specifically used for the migration roller of calender, described roller comprises axle and axle head, shell and at least one loading element, described loading element is for loading described shell and being arranged in the pressure bag district of described axle, described roller and another roller form nip, it is characterized in that, the migration roller of described fiber web machine comprises buffer unit, described buffer unit is used at least one loading element of described migration roller, to cushion the vibration of the shell of described roller, described buffer unit comprises flexible member and buffer element, and at least one loading element freely moves along described loading direction.
Preferably, described loading element and the piston for mobile described loading element are all arranged in described pressure bag district, and described flexible member is the disc spring in pressure bag district between described loading element and described piston.
Preferably, described pressure bag district comprises medium, described loading element floats in the medium, and described buffer element is set to viscosity buffer by the allowance between described loading element and described pressure bag district, described allowance comprises described medium, and when described loading element vibrates due to the case vibration of described roller, described medium moves towards described allowance in described pressure bag district, and in described allowance, media flow can produce the pressure loss directly related with the movement velocity of described loading element.
Preferably, described allowance is 0.5 – 2.5mm, is advantageously 1.0 – 2.0mm.
Preferably, described allowance is not sealed.
Preferably, the migration roller of described fiber web machine also comprises elastic supporting member for supporting optical member and bearing, the axle head of described migration roller is supported to the framework of described fiber web machine by described bearing, and the vibration damping of the axle head of described roller is provided by liquid film buffering, i.e. squeeze film buffering.
Preferably, described bearing comprises independent axle bush, and it supports to corresponding bearing block along loading direction by pressure bag district, and described pressure bag district is full of the Compressed Gas of high compression, such as air.
Preferably, described bearing comprise perpendicular to loading direction, the fluid bag district that is full of oil or other liquid.
Preferably, the migration roller of described fiber web machine also forms nip with another roller, another roller described comprises elastic supporting member for supporting optical member and bearing, the axle head of another roller described is supported to the framework of described fiber web machine by described bearing, and the vibration damping of the axle head of another roller described is provided by liquid film buffering, i.e. squeeze film buffering.
In another scheme, propose a kind of for fiber web machine, be specifically used for the migration roller of calender, described roller comprises axle and axle head, shell and at least one loading element, described loading element is for loading shell and being arranged in the pressure bag district of described axle, described roller and another roller form nip, it is characterized in that, described loading element and the piston for moving described loading element are all arranged in described pressure bag district, and flexible member is the gas compartment, the gas of high compression is arranged in pressure bag district, and be between described loading element and described piston.
Preferably, described loading element is controlled by digital pressure controller, and is provided with independent oil supply circuit to lubricate described loading element.
By the utility model, form a kind of new paragon of vibration of zone controlled roller controlling migration roller, such as calender, wherein by means of the charger of migration roller and/or control vibration by means of the bracing or strutting arrangement of migration roller.Bracing or strutting arrangement can be that the axle head of roller is supported in the bearing supports of the framework of calender or the loading cylinder support member of calender.
In the mode of the vibration of vibration, the particularly migration (such as zone controlled roller) of control fiber web machine, according to the utility model, the optimal design of at least one roller by vibrate modeling, simultaneously in conjunction with the restriction of quiet loading and the best amplitude providing the loading element of at least one roller to move under one or more intrinsic frequency obtain, described intrinsic frequency can cause the nip pressure in the nip formed by migration roller and another roller or nip load to change.
According to preferred feature, calculate resonance, determine the critical resonance in view of vibration, make the current buffer of critical resonance be maximized to some frequency limit between 50 – 1000Hz.Based on these vibration modeling factors, design migration roller, buffer unit designed to be used at least one loading element, is preferably used for the support member of roller.It should be noted that the design of the calender roller of prior art is not considered to cushion relevant any parameter to vibration or its, when using calender roller that vibration occurs, solution seeks damped vibration, namely only after problem occurs, takes action.
According to preferred version of the present utility model, the hydraulic piston of the loading element of migration roller (such as passes through spring by Flexible Connector, preferably by disc spring) be separated with loading element, and loading element is arranged in the pressure bag district of axle, make there is suitable allowance between loading element and pressure bag district.Allowance is 0.1 – 2.5mm, preferably 1.0 – 2.0mm.In addition, this allowance is not preferably sealed, and loading element floats in media as well, preferably floats in oil.By making piston be separated with loading element, preventing medium from flowing into unsealing space, therefore avoiding large flowing.In order to guide the location of loading element in pressure bag district, the cross section of element departs from circular form, and such as it can have the groove providing cross-sectional flow area.
When loading element vibrates, make to move in the volume of medium between piston and loading element, the pressurized and flowing in the allowance being forced in the pressure bag district of loading element of this medium.In allowance, media flow produces the pressure loss directly related with the movement velocity of loading element and is therefore used as viscosity buffer.
According to preferred version of the present utility model, migration roller comprises flexible member, such as spring or gas volume, between its piston at least one loading element of roller and support member of at least one loading element, it is set to can freely move along the loading direction of at least one loading element.
Preferably, the hydraulic piston of loading element also loads by gases at high pressure volume, and this will compress more significantly than oil.Independent oil supply circuit is set, for lubricating loading element.
The leakage free air loading area of roller also can use simple compact electromagnetic valve to carry out Stress control to loading area.Do not need complicated servo/proportioning valve, but by adjusting the open and close time controlled pressure of electromagnetic valve.This control is called as digital pressure and controls.
When the case vibration of migration roller, at least one loading element moves together with shell, because only have thin-layered medium between shell and loading element.If loading element moves to the axle of roller, then because allowance is narrow and small, medium can be caused to flow into allowance with high flow rate and cause flow loss.Flow loss depends on the viscosity of medium, the size of allowance, and therefore under certain movement speed, produces the pressure loss, and this depends on the cross-sectional flow area of allowance and generates cushion effect thus.
When by vibration Modeling and Design migration roller, optimized buffer design can be calculated, make will provide vibration damping to greatest extent by loading element under difference vibration.During operation calender, vibration damping can be subject to further impact, because buffering depends on the viscosity of medium, and the viscosity of medium is adjusted by the temperature adjusting medium, therefore also can realize adaptive vibration damping.
Preferably, the rigidity of loading element is at 1x10
5n/m – 1x10
7in the scope of N/m, be buffered in 1x10
5ns/m – 1x10
6in the scope of Ns/m.Roller support stiffness is preferably 1x10
7n/m – 5x10
8n/m.Roller supports buffering preferably 5x10
5ns/m – 5x10
7ns/m.
According to preferred feature of the present utility model, by the size of allowance, the buffering attribute of the roller that design is expected.
According to preferred version of the present utility model, migration roller is designed to the roll nip of calender, and overall buffering is maximized by considering all resonance of the roller causing the pressure in nip area to change.
According to another preferred version, the axle head of migration roller by elastic supporting member for supporting optical member and by bearings to framework.Therefore the Vibrant buffer of roller supports is provided by liquid film buffering, i.e. squeeze film buffering.According to this preferred version, when the axle of roller moves oil in the allowance of bearing block, the oil film in allowance is extruded and is forced in narrow gap volume and flows between hard surface.The pressure loss in flowing generates reaction force, and obtains buffering.Cushion effect depends on width and the liquid film area size of the viscosity of liquid, the height of allowance and axle.
According to preferred version, the support of migration roller is provided by the structure of bearing on the support member of independent axle bush of roller, and independent axle bush is supported to the accommodating corresponding bearing in pressure bag district along loading direction.Pressure bag district is filled, and has the Compressed Gas of high compressibility, such as air for supporting loading.The area in pressure bag district and volume are designed to the support adaptability providing expectation.According to preferred feature, the fluid bag district being full of oil or other liquid is set in addition perpendicular to loading direction.Allowance between the region that fluid bag district, axle bush, fluid bag district cover and the area in fluid bag district provide the Different factor of design liquid capacity, and the viscosity providing expectation is cushioned.Supported configurations also can be assemblied in the fixing point that calender loads cylinder.
Buffering is provided so that when axle bush moves along loading direction in one end of liquid capacity, and allowance reduces, and when the other end moves, allowance increases.Along with liquid is flowing according in the narrow allowance of replacement volume, produces the pressure loss in flowing, therefore the reaction force of motion is provided.By advantageous scheme of the present utility model, the rigidity of the support member of design migration roller and buffering attribute.
According to another preferred version, migration roller is loaded in calender by being provided with the loading cylinder of elastic supporting member for supporting optical member.Therefore Vibrant buffer support cushioned by liquid film, namely squeeze film cushions provides, wherein along loading direction, active force by high compression gas pouch area carrier, on the little allowance that the axle loading cylinder limits in discharge rate and the throttling by inlet side " floating ".
Accompanying drawing explanation
Hereinafter, explain the utility model in detail with reference to accompanying drawing, but the utility model is not narrowly confined to accompanying drawing.
Fig. 1 schematically shows example of the present utility model.
Fig. 2 A schematically shows the example according to preferred loading element of the present utility model.
Fig. 2 B schematically shows another example according to preferred loading element of the present utility model.
Fig. 3 schematically shows the example of the preferred Bearing configuration according to preferred feature of the present utility model.
Fig. 4 schematically shows the further details of liquid flow in the fluid bag district of the example of Fig. 3.
Fig. 5 schematically shows another example of the preferred Bearing configuration according to preferred feature of the present utility model.
Fig. 6 and 7 schematically shows the example of the dancer of signal.
Fig. 8 A – 8B schematically shows the example of the loading cylinder support member of calender.
Detailed description of the invention
During following description process, according to the different view that the utility model and preferred exemplary thereof are shown, similar numbers and symbols represents similar element by being used for.
In the example of fig. 1, nip N, such as calander nip are formed between migration roller 10 and its counter roll 11.The axle head 13 of counter roll 11 is supported by damping element 15 and is supported to the frame structure of device (such as calender) by flexible member 17.Correspondingly, the axle head 12 of migration roller 10 is supported by damping element 14 and is supported to the frame structure of device (such as calender) by flexible member 16.Supporting loading element 20 on the axle 12A of migration roller 10, for clearly reason, only has a loading element 20 to be marked Reference numeral.As shown in the figure, loading element 20 loads towards the shell 10A of the direction pair roller of the counter roll 11 of migration roller 10 along nip direction, namely.Each loading element 20 is also provided with buffer element 24 and flexible member 26.
When designing migration roller by vibration modeling, optimized buffer design can be calculated, make, in multiple vibration mode, to be maximized by the vibration damping of loading element.During operation calender, vibration damping can be affected further, because buffering depends on the viscosity of medium, and the adjustment of the viscosity of medium is provided by the temperature of adjustment medium, therefore also can realize the vibration damping of self-adapting type.
Fig. 2 A is the example that loading element 20 couples of shell 10A load, and it is arranged in the pressure bag district of the axle 12A of migration roller 10.Loading element 20 comprises load shoe 23, and it has the oil bag district 25 for such as wet goods lubricant medium.Lubricant medium arrives oil bag district 25 via passage 27.Hydraulic piston 21 by flexible member 26, be separated with loading element 20 advantageous by disc spring, the on-load pressure bag district 33 of seal 35 packed-piston 21.Loading element 20 is arranged in the pressure bag district 33 of axle 12A, makes to have suitable allowance 31 between loading element 20 and pressure bag district.This allowance is 0.5 – 2.5mm, is advantageously 1.0 – 2.0mm.In addition, loading element 20 in media as well (advantageously in oil) float.In order to guide the location of loading element 20 in pressure bag district 33, the cross section of this element departs from circular form, and such as it can have the groove (not shown) providing cross-sectional flow area.The below of flexible member 26 is pistons 21, and it provides loading force for loading element 20, as shown by arrows in FIG..Piston 21 is sealed in pressure bag district 33 by seal 35.
The hydraulic piston 21 of loading element 20 also loads by the gases at high pressure volume in the loading bag district 33 that sealed by seal 35, as shown in Figure 2 B.Loading element 20 comprises load shoe 23, and it has the oil bag district 25 for wet goods lubricant medium.Independent oil supply circuit 38 is set, for lubricating loading element 20.The piston 21 of loading element 20 is separated with loading element 20 by the gas compartment 39 sealed by seal 35,36.Loading element 20 is arranged in the pressure bag district 33 of axle 12A, makes to have suitable allowance 31 between loading element 20 and pressure bag district.This allowance is 0.5 – 2.5mm, is advantageously 1.0 – 2.0mm.See figures.1.and.2 A – 2B, and migration roller 10 comprises the shell 10A surrounding and load axle 12A, and loading area is provided by the piston 21 of loading element 20.Loading area is rigidly connected to the shell 10A of roller 10, because the lubricating oil very thin thickness between loading element 20 and shell 10A.Loading element 20 is supported on by pressure medium volume and loads on axle 12A.Loading and vibration damping are provided so that at least one loading element 10 moves together with shell 10A when the shell 10A of migration roller 10 vibrates, because be the thin layer of medium between shell 10A and the load shoe 23 of loading element 20.If loading element 20 moves to the axle 12A of roller 10, then because allowance 31 is narrow and small, medium high flow rate can be caused to flow into allowance 31 and cause flow loss.Flow loss depends on the viscosity of medium, the size of allowance, therefore can produce the pressure loss under certain movement speed, and this depends on the cross-sectional flow area of allowance and generates cushion effect thus.
Fig. 3 illustrates the schematic example of the bearing block 41 of axle head 12, and wherein in allowance, (that is, in the fluid bag district 45 between bearing 43 and bearing block 41) is provided with oil film around bearing 43.Loading direction is marked by arrow LD.Pressure bag district 47 is arranged along loading direction LD.Seal 49 is between pressure bag district 47 and fluid bag district 45.
As shown in Figure 4, when the one end in fluid bag district 45 occurs along the moving of loading direction LD, width reduces, and other end width increases.Along with liquid flows according to replacement volume in narrow fluid bag district 45, can produce the pressure loss, therefore provide the reaction force F of motion in flowing FL, as dotted arrow instruction, and it provides buffering.
As Fig. 5 schematically shows, the support member of the axle head 12 of roller 10 has independent axle bush 50, and it supports to corresponding bearing block 41 by pressure bag district 47 along loading direction LD.Pressure bag district 47 is full of Compressed Gas (such as air), and it can high compression.The area in pressure bag district 47 and volume are designed to the support adaptability providing expectation.The fluid bag district 45 being full of oil or other liquid is provided with in addition perpendicular to loading direction LD.Allowance between the region that fluid bag district 45, axle bush 50 and fluid bag district 45 cover and the area in fluid bag district 45 provide the Different factor designing liquid capacity, thus provide the viscosity of expectation to cushion.Buffering is configured such that when axle bush 50 moves along loading direction LD, and at one end place of liquid capacity, allowance reduces, and at other end place, allowance increases.Along with liquid is flowing according in the narrow allowance of replacement volume, can the pressure loss be produced in flowing, and therefore the reaction force of motion is provided.
According to the schematic example presented in Fig. 6 and Fig. 7, dancer 60 is set by the spring (not shown) in loading element 62, the loading element in the similar Fig. 2 of described loading element.When the shell 65 of roller 60 is mobile due to vibration, shell 65 followed by spring, thus compensating motion provide vibration damping.
Fig. 8 A – Fig. 8 B schematically shows the example of the loading cylinder support member 70 of calender, and described loading cylinder support member 70 has elastic support.Therefore Vibrant buffer supports and is cushioned (namely by liquid film, squeeze film cushions) provide, wherein along loading direction, active force is carried by the high compression gas pouch district 71 in pressure bag district 47 corresponding to Fig. 3 and Fig. 5, on the little allowance that the axle loading cylinder limits in discharge rate and the throttling by inlet side " floating ".Pyramidal structure 72 provides the location of the axle loading cylinder, and functional allowance is arranged by axial device for screwing up 73.Perpendicular to the direction being loaded axle by hydraulic pressure bag district 74, the edge groove that wherein oil is supplied to middle the Bing Congdai district in bag district is discharged, and such operation is corresponding to the operation in the fluid bag district 45 of figure 3 – Fig. 5.Hydraulic pressure bag district 74 also provides viscosity to cushion by squeeze film effect.
Claims (15)
1. the migration roller of fiber web machine, described roller (10) comprises axle (12A) and axle head (12), shell (10A) and at least one loading element (20), described loading element (20) is for loading described shell (10A) and being arranged in the pressure bag district (33) of described axle (12A), described roller (10) and another roller (11) form nip (N), it is characterized in that, the migration roller (10) of described fiber web machine comprises buffer unit (24, 26), described buffer unit (24, 26) at least one loading element (20) of described migration roller (10), to cushion the vibration of the shell (10A) of described roller, described buffer unit comprises flexible member (26) and buffer element (24), and at least one loading element (20) freely moves along described loading direction.
2. migration roller as claimed in claim 1, it is characterized in that, described loading element (20) and the piston (21) for moving described loading element (20) are all arranged in described pressure bag district (33), and described flexible member is the disc spring (26) in the pressure bag district (33) be arranged between described loading element (20) and described piston (21).
3. migration roller as claimed in claim 1, it is characterized in that, described pressure bag district (30) comprises medium, described loading element (20) floats in the medium, and described buffer element (24) is set to viscosity buffer by the allowance (31) between described loading element (20) and described pressure bag district (33), described allowance (31) comprises described medium, and when described loading element (20) vibrates due to shell (10A) vibration of described roller, described medium is mobile towards described allowance (31) in described pressure bag district (33), and in described allowance (31), media flow can produce the pressure loss directly related with the movement velocity of described loading element (20).
4. migration roller as claimed in claim 3, it is characterized in that, described allowance (31) is 0.5 – 2.5mm.
5. migration roller as claimed in claim 4, it is characterized in that, described allowance (31) is 1.0 – 2.0mm.
6. migration roller as claimed in claim 3, it is characterized in that, described allowance (31) is not sealed.
7. migration roller as claimed in claim 1, it is characterized in that, the migration roller (10) of described fiber web machine also comprises elastic supporting member for supporting optical member (17) and bearing (15), the axle head (12) of described migration roller (10) is supported to the framework of described fiber web machine by described bearing (15), and the vibration damping of the axle head (12) of described roller (10) is provided by liquid film buffering, i.e. squeeze film buffering.
8. migration roller as claimed in claim 7, it is characterized in that, described bearing (15) comprises independent axle bush (50), it supports to corresponding bearing block along loading direction (LD) by pressure bag district (47), and described pressure bag district (47) is full of the Compressed Gas of high compression.
9. migration roller as claimed in claim 8, it is characterized in that, described pressure bag district (47) is full of the compressed air of high compression.
10. migration roller as claimed in claim 7, is characterized in that, described bearing (15) comprise perpendicular to loading direction, the fluid bag district that is full of oil or other liquid.
11. migration rollers as claimed in claim 1, it is characterized in that, the migration roller (10) of described fiber web machine also forms nip with another roller (11), described another roller (11) comprises elastic supporting member for supporting optical member (17) and bearing (15), the axle head (13) of described another roller (11) is supported to the framework of described fiber web machine by described bearing (15), and the vibration damping of the axle head (13) of another roller described (11) is provided by liquid film buffering, i.e. squeeze film buffering.
12. migration rollers according to any one of claim 1 to 11, it is characterized in that, described migration roller is the migration roller of the calender of described fiber web machine.
The migration roller of 13. fiber web machines, described roller (10) comprises axle (12A) and axle head (12), shell (10A) and at least one loading element (20), described loading element (20) is for loading shell (10A) and being arranged in the pressure bag district (33) of described axle (12A), described roller (10) and another roller (11) form nip (N), it is characterized in that, described loading element (20) and the piston (21) for moving described loading element (20) are all arranged in described pressure bag district (33), and flexible member is the gas compartment (39), the gas of high compression is arranged in pressure bag district (33), and be between described loading element (20) and described piston (21).
14. migration rollers as claimed in claim 13, it is characterized in that, described loading element (20) is controlled by digital pressure controller, and is provided with independent oil supply circuit to lubricate described loading element (20).
15. migration rollers as described in claim 13 or 14, it is characterized in that, described migration roller is the migration roller of the calender of described fiber web machine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13169860.7 | 2013-05-30 | ||
| EP13169860.7A EP2808445B1 (en) | 2013-05-30 | 2013-05-30 | Deflection compensated roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204059089U true CN204059089U (en) | 2014-12-31 |
Family
ID=48520801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282184.0U Expired - Lifetime CN204059089U (en) | 2013-05-30 | 2014-05-29 | The migration roller of fiber web machine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2808445B1 (en) |
| CN (1) | CN204059089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872792A (en) * | 2018-08-30 | 2020-03-10 | 维美德技术有限公司 | Method for treating a fiber web and treatment system for treating a fiber web |
| CN113862927A (en) * | 2021-09-06 | 2021-12-31 | 海宁忆丹纺织股份有限公司 | Finishing device behind decorative fabric |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI127119B (en) | 2015-10-27 | 2017-11-30 | Valmet Technologies Oy | A system for damping vibrations in the nip of a fiber web machine |
| CN106904476B (en) * | 2017-05-05 | 2018-06-29 | 郑端金 | A kind of cloth conveying automatic correcting mechanism |
| CN106946079B (en) * | 2017-05-05 | 2018-06-22 | 东莞市鑫盛手袋工艺有限公司 | A kind of cloth conveying cutting mechanism with automatic correcting mechanism |
| CN106904474B (en) * | 2017-05-05 | 2018-05-25 | 佛山市南海区金龙恒家具有限公司 | One kind has automatic lifting cloth conveying automatic correcting mechanism |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10248519B4 (en) | 2002-10-17 | 2006-11-02 | Voith Patent Gmbh | Center roller of a calender and calender |
| FI118056B (en) * | 2004-11-11 | 2007-06-15 | Metso Paper Inc | Arrangement for damping the vibrations of a deflection compensated roll |
| FI118812B (en) * | 2006-02-01 | 2008-03-31 | Metso Paper Inc | Method for Controlling the Specific Vibration Frequency of a Calender Intermediate Roll and Vibration Dampener |
| US20080000363A1 (en) * | 2006-06-29 | 2008-01-03 | Metso Paper, Inc. | Adjustable Anti-Barring Device for Calender Rolls |
| FI121752B (en) * | 2009-07-07 | 2011-03-31 | Metso Paper Inc | Apparatus and method for controlling the runnability of a fiber web handling nip |
| DE102010002503A1 (en) * | 2010-03-02 | 2011-09-08 | Voith Patent Gmbh | Roller for a paper or board machine and method for damping vibrations of a roller |
| DE102010039795A1 (en) * | 2010-08-26 | 2012-03-01 | Voith Patent Gmbh | Apparatus and method for reducing vibration on a bending roll |
-
2013
- 2013-05-30 EP EP13169860.7A patent/EP2808445B1/en active Active
-
2014
- 2014-05-29 CN CN201420282184.0U patent/CN204059089U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872792A (en) * | 2018-08-30 | 2020-03-10 | 维美德技术有限公司 | Method for treating a fiber web and treatment system for treating a fiber web |
| CN113862927A (en) * | 2021-09-06 | 2021-12-31 | 海宁忆丹纺织股份有限公司 | Finishing device behind decorative fabric |
| CN113862927B (en) * | 2021-09-06 | 2023-11-03 | 海宁忆丹纺织股份有限公司 | Finishing device for decorative fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2808445B1 (en) | 2017-03-15 |
| EP2808445A1 (en) | 2014-12-03 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20141231 |