CN102753755A - Deflection adjustable roll and system - Google Patents

Deflection adjustable roll and system Download PDF

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Publication number
CN102753755A
CN102753755A CN2011800084853A CN201180008485A CN102753755A CN 102753755 A CN102753755 A CN 102753755A CN 2011800084853 A CN2011800084853 A CN 2011800084853A CN 201180008485 A CN201180008485 A CN 201180008485A CN 102753755 A CN102753755 A CN 102753755A
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CN
China
Prior art keywords
roller
pressure
loading
valve
charge valve
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Pending
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CN2011800084853A
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Chinese (zh)
Inventor
尤哈·拉赫蒂宁
托米·科罗莱宁
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Valmet Technologies Oy
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Metso Paper Oy
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Publication of CN102753755A publication Critical patent/CN102753755A/en
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    • 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
    • D21G1/022—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member the means using fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/003—Bowed or curved rolls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
    • F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
    • F16C13/026—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure
    • F16C13/028—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure with a plurality of supports along the length of the roll mantle, e.g. hydraulic jacks

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Friction Gearing (AREA)

Abstract

The invention is relating to a deflection adjustable roll of a fiber web machine comprising a stationary shaft (2), a shell (1) arranged rotatably around the shaft (2), and loading elements (6) supported in the shaft (2) for loading the shell from inside through a hydraulic pressure medium, and the roll comprises separate loading pressure supply (Ps) and lubrication supply (Qs) for the loading elements (6), and a group of digital hydraulic first loading valves (P1...PN) is arranged inside the roll each of them being arranged loading element specific in a flow connection with a loading cylinder (20) comprised by the loading element (6). The invention is relating also to a system for loading a deflection adjustable roll.

Description

Adjustable roller of amount of deflection and system
Technical field
The present invention relates to be used in the adjustable roller of amount of deflection that (preferably is used in paper machine, board machine and the Paper pulp machine) in the fiber web machine, the invention still further relates to the system that is used for the load deflection adjustable roller.Particularly, but exclusively non-, the present invention relates to the loading of the housing that control in the deflection-compensated roll that value-added tax function at loading element is independent of lubricating function carried out by switch valve (on-off valve).
Background technology
Known, the housing of amount of deflection adjustable roller can carry out hydraulic loaded internally by loading element.
Nowadays, in a roller that carries out hydraulic loaded by loading element, between the housing of roller and the axle for example 65 loading elements can be set.Simultaneously, in this roller that has been suggested, can carry out in groups or individually the control of loading element.In the roller with a zone, identical pressure acts on all loading elements, and this pressure is controlled by a shared valve of all loading elements.In having the roller in a plurality of zones, loading element is divided into a plurality of by 2 to 8 groups that element constitutes or zones, and each zone has the control valve of oneself.When valve or the loading element that has oneself when each loading element individually controlled, the quantity in zone was maximum.In the roller according to modern technologies, these valves are positioned at the outside of roller.In present loading element, usually, value-added tax function and lubricating function are bonded to together, and lubricating oil also is to supply with via the on-load pressure circuit.The pressure of valve regulation working fluid.Lubricating oil is forced into the on-load pressure degree can be caused than lubricating oil being forced into the higher energy loss of lubrication pressure degree.Lubricated and on-load pressure degree can receive the influence of the size of loading element.
Patent documentation DE 3815462 has described the embodiment of amount of deflection adjustable roller, and its middle shell carries out hydraulic pressure internally by loading element to be supported.First roller shown in the document comprises shared on-load pressure supply lines that is used for all loading elements and the shared lubricated supply lines that is used for all loading elements, and these two supply lines all branch to (divide into) each loading element.Value-added tax function and lubricating function are differentiated and are implemented by the underground separately in the loading element of first roller.Second roller shown in the document comprises the supply lines of the loading element of the correspondence that is used to combine value-added tax function and lubricating function, and wherein on-load pressure is implemented through working fluid, and lubricated flowing formed by flowing through of working fluid.In patent documentation DE 3815462, from the outside of roller hydraulic pressure is regulated and in roller, do not contained valve.
Patent documentation US 4183128 has described the adjustable roller of a kind of amount of deflection, and wherein pressure-regulating valve is positioned at the inside of roller, is connected with each loading element.
Patent documentation FI 113794 has described the adjustable roller of amount of deflection in the zone.The housing of roller loads by hydraulic cylinder, and these hydraulic cylinders pressurize in couples and control by being arranged on the outside digital valve pack of roller.Every pair of hydraulic cylinder all pressurizes through the fluid transfer of self, and said fluid transfer is connected with a switch valve of digital valve pack.Inside at roller needs a plurality of independent fluid transfer, and these fluid transfer are led to the switch valve that is positioned at the roller outside.Be not provided for the valve of value-added tax function in the inside of roller.
In addition, patent documentation FI 118820 has described the adjustable roller of a kind of amount of deflection, and wherein the value-added tax function of static pressure loading element and lubricating function are bonded to together.
The purpose of this invention is to provide a kind of alternative method that is used for the adjustable roller of load deflection.
Summary of the invention
According to a first aspect of the invention, a kind of adjustable roller of amount of deflection of fiber web machine is provided, it comprises: fixed axis; Housing rotatably is provided with around axle; And loading element; Be supported in the axle; Be used for loading housing internally, and said roller comprises independent forced feed portion and the lubricated supply unit that is used for loading element that first charge valve of set of number fluid pressure type is set at the inside of roller through hydraulic medium; Each first charge valve all is arranged for corresponding loading element, and flowing with loading cylinder that loading element is comprised is connected.
Preferably, but first charge valve comprises the hydraulic switching valve of at least two electric control, and wherein at least one first switch valve is intended to be used for to loading the cylinder charged pressure, and at least one second switch valve is intended to be used for from loading the cylinder release pressure.
Preferably, this roller comprises the voltage supply circuit, and said voltage supply line sharing is in all loading elements, and leads to the inside of roller from the outside of roller, and being provided with from this voltage supply circuit to first charge valve flows connects.
Preferably, this roller comprises one group of pressure tester, and this group pressure tester is set to be used for corresponding loading element, is connected with loading cylinder pressure.
Preferably, first charge valve comprises the electrical measurement pressure device, and said electrical measurement pressure device is connected with the pressure efferent pressure that first charge valve is comprised, and this pressure efferent leads to the loading cylinder.
Preferably, the output stage electronic installation is used for this charge valve by connection, thus the coil of the switch valve of controlling charge valve at least and being comprised.
Preferably, this output stage electronic installation is set at the inside of roller near charge valve.
Preferably, at least a portion of data/address bus is set in the roller.
Preferably; The output stage electronic installation of corresponding loading element is connected with data/address bus; Be used for the measuring-signal waiting for transmission of pressure tester outside, and/or be used for the control signal waiting for transmission of switch valve inside from the external transmission of roller to roller from the internal transmission of roller to roller.
According to a second aspect of the invention; A kind of system that is used for the adjustable roller of load deflection according to any embodiment of the present invention is provided; This system comprises electric control unit; Said electric control unit is positioned at the outside of roller, is used to control the loading element of the inside that is arranged on roller, and these loading elements are in particular first charge valve of digital fluid pressure type.
Preferably, this system comprises second charge valve, and said second charge valve is arranged in the voltage supply circuit, is used to control the common degree of pressure of the first all charge valves.Preferably, second charge valve is arranged on the outside of roller.
Preferably, this system comprises the pressure accumulator that connects with the voltage supply circuit.
Preferably, this system comprises the load pump that connects with the voltage supply circuit.
Preferably, this control module is suitable for receiving the pressure data of corresponding loading element; This control module is suitable for confirming the control data of first charge valve, and said control data is based on the pressure data of the loading element of correspondence, based on the Mathematical Modeling of the hydraulic loop that is arranged at first charge valve in the control module and based on the opening and closing of optimizing switch valve and be arranged at the optimizer in the control module; And this control module is suitable for the control data of the loading element of determined correspondence is sent to the inside of roller, is used to regulate first charge valve.
Preferably, this system comprises field pipeline (field piping), and said field pipeline leads to the voltage supply circuit of loading from load pump.
Preferably, all loading elements are implemented the hydraulic valve of common degree of pressure or the voltage supply circuit that one group of hydraulic valve is arranged in loading.Pressure can have the gradient (ramp) and can implement big pressure and changes, and the closing and open and can organize valve by this and realize of nip for example.Under the situation when common degree of pressure improves and/or reduces, this system can be configured to use this group valve of all loading elements being implemented common degree of pressure.When the stress state of roller continued, this system can be configured to avoid all loading elements are implemented this group valve of common degree of pressure.In this system, when the stress state of roller continued, the inner voltage supply circuit of roller can directly connect with the outside voltage supply circuit of roller.
In certain embodiments, when the voltage supply circuit was equipped with pressure accumulated device and maybe can keeps the relevant device of hydraulic pressure, load pump can be shut down.Afterwards, the energy consumption of value-added tax function can reduce to some extent.
Preferably, this system comprises control module, and said control module is positioned at the outside of roller, is used to control the loading of this roller.This control module can receive the signal of the loading element of correspondence being implemented pressure measurement.This pressure measurement preferably the electricity.This control module can send to the control signal of loading element at least two switch valves of the inside that is arranged at roller particularly, is used to raise and/or reduces the pressure of loading element.Control module can be controlled the pressure of the voltage supply circuit that reduces this loading, makes the switch valve of corresponding loading element cause that in the loading element of the fast opening that leads to roller pressure descends.
The Mathematical Modeling that for example is used for each loading element of the hydraulic loop of loading element can be by being arranged on control module like software engineering; This control module is implemented the external control technology of roller, and this Mathematical Modeling can be confirmed the pass close point of each switch valve with the adjusting program of closing and opening of optimizing switch valve and open a little.When the quantity of switch valve hour, even each loading element is when only having two valves, optimizes to be easier to and only to need optimization seldom.The enforcement of the external control of roller technology be through circulation timei fast control module manage; This control module can be an Industrial PC for example; And manage through the output stage electronic installation (being known that power electronic equipment itself) of switch valve, through this output stage electronic installation, when the state of switch valve changes; In the coil of switch valve, can produce high pressure, quicken so that state changes.The needed power electronic equipment of the coil of switch valve also can be arranged on the inside near the roller of coil.
Preferably, this system comprises data/address bus.This data/address bus can be the data/address bus according to industrial standard.For example, fieldbus is applicable to this data/address bus.This data/address bus can be used for the control module of the outside that is positioned at roller is connected the driver and the measurement mechanism of the inside that is arranged on roller.This data/address bus can be used for the measurement data to be measured of the inside of roller (like the pressure data of the loading element of correspondence) is transferred to control module.This data/address bus can be used for control signal to be sent is transferred to the actuator of roller, is used for the loading of control roll.Being connected the output stage electronic installation or the power electronic equipment that use with actuator can connect with control module via data/address bus.
Through connecting testing equipment, can observe the adjusting of the pressure of enclosure space and can implement, even each loading element is only implemented by two switch valves through the switch valve of lesser amt.Utilize the present invention, the quantity of the hydraulic valve of use is compared and can significantly be reduced with the loading element of the known adjustable roller of amount of deflection, and wherein, flow through valve and heap(ed) capacity are functional relation to be increased.The quantity of valve is kept seldom and compared with prior art quantity reduce and have following advantage.Because the design of switch valve can be embodied as simple and firm, single valve is to bear suitably fault-tolerant reliable parts.Therefore, the roller that comprises a plurality of switch valves can be made reliably and be durable, a bit is in addition can reduce to safeguard and the expense of maintenance.
Between the operating period of roller, but utilize the value-added tax function conserve energy of the amount of deflection adjustable roller of implementing with switch valve, because switch valve basically can seepage because of its Design and Features.If desired, for example, when the voltage supply circuit of this loading was equipped with pressure accumulated device, load pump can be shut down.According to some useful embodiment, the energy consumption of the lubricating function of loading element is compared also with the roller of prior art and is decreased.The value-added tax function of being implemented by switch valve that is independent of lubricating function is provided for optimizing the instrument that the energy of roller uses, and this also makes it possible to optimize the lubricated of loading element with the mode that is independent of loading and flows.The inside value-added tax function of the roller housing of implementing through switch valve also can combine to develop with the fluid dynamic force loading element.
Below will illustrate or illustrate the various embodiment of the present invention that only combines one aspect of the present invention or some aspects.Any embodiment that it will be understood by those skilled in the art that one aspect of the present invention can be of the present invention with combining to use individually or with other embodiment on the one hand and in others.
Description of drawings
Below with reference to accompanying drawing with case description the present invention, wherein
Fig. 1 shows the adjustable roller of first amount of deflection, and its value-added tax function is provided with by this roller switch inside valve;
Fig. 2 shows loading element, and wherein lubricating function is independent of value-added tax function;
Fig. 3 shows first valve connector of the value-added tax function that is used for single loading element, and it is suitable for controlling little state variation.
Fig. 4 shows the valve connector of Fig. 3, and it is connected with power electronic equipment through some electric connectors;
Fig. 5 shows second valve connector, the outside that it is arranged in the voltage supply circuit and is positioned at roller, and the degree of pressure of its all loading elements that are suitable for exerting an influence changes, as make pressure state that the gradient arranged;
Fig. 6 shows the first method that the power electronic equipment that is used to make first valve connector connects with bus with the form of for example series connection;
Fig. 7 shows the second method that the power electronic equipment that is used to make first valve connector connects with bus with the form of for example star;
Fig. 8 shows second embodiment according to the roller of the type of Fig. 1.
The specific embodiment
In the following description, identical Reference numeral is represented components identical.Should understand that shown accompanying drawing is not to according to ratio fully, and the purpose of accompanying drawing mainly is to explain embodiments of the invention.
Fig. 1 shows the amount of deflection adjustable roller, and its housing 1 is loaded against the housing 8 of another roller, and in order to handling (for example, squeezing) fiber web in nip, this nip is formed at the housing 1 of roller, between 8.Housing 1 is loaded by loading element 6 (being depicted as six that are in the roller) as an example internally.At loading duration, the removable loaded members 7 of loading element 6 is configured to against the inner surface of housing 1, and loading element 6 is supported in the fixed axis 2 of roller at its second end place.Axle 2 at place, its end by shaft supporting part 4 (be arranged in the roller external structure, for example be arranged in the bearing block of the frame on paper machine or ground 5) and supported.Preferably, axle 2 is fixed to non-rotatable during use, but the position of rotation of this axle can support through shaft supporting part 4 adjustment ground, thereby points to roller.End sealing 3 is set between housing 1 and the axle 2, in order to be sealed in the inner lubricant medium volume that forms of roller.
Loading element 6 is by hydraulic switching valve P 1P NAnd load.In loading element 6, lubricating function is independent of value-added tax function.For loading element 6 is loaded, need hydraulic loading system, it comprises: for example have the load pump of hydraulic pressure unit, the Load Line of the loading element of field pipeline (not shown in the accompanying drawing) and correspondence.In Fig. 1, the charge valve that regulate to load is positioned at the inside of roller, the Load Line of the loading element of the correspondence that wherein need not to guide via roll end.The voltage supply circuit P that loads SBe directed into the inside of roller, be modified to be used for loading element 6 from the required pressure of this voltage supply circuit.Since to the pressure of enclosure space (the loading cylinder 20 of loading element 6) adjust and this space in flow does not appear, so this adjusting even can implement with two switch valves.In this configuration structure, (preferably through electronic pressure measuring apparatus PT 1PT N) pressure of each loading element is measured.Adopting the advantage of electronic pressure measuring apparatus to be can be to the variable condition fast reaction of pressure, and it is little to guide to the signal conductor of the outside control appliance of roller required space and mechanism from the loading cylinder 20 of loading element 6.
The Mathematical Modeling of the hydraulic loop of loading element can for example be arranged on by software engineering in the control module (not shown in the accompanying drawing) of the external control technology of implementing roller, and this Mathematical Modeling can be confirmed the pass close point of each switch valve with the adjusting program of closing and opening of optimizing switch valve and open a little.When the negligible amounts of switch valve, even each loading element is when only having two valves, optimizes to be easier to and only to need optimization seldom.The enforcement of the external control of roller technology be through circulation timei fast control module manage, this control module can be an Industrial PC for example; And manage through the output stage electronic installation (being well known that power electronic equipment itself) of switch valve, through this output stage electronic installation, when the state of switch valve changes, in the coil of switch valve, produce high pressure, so that changing, state quickens.
In Fig. 1, load needed hydraulic fluid through voltage supply circuit P SBe fed to roller from the outside of roller, this voltage supply circuit P SBe formed in the axle 2 and be common to all loading elements 6.This voltage supply circuit P SThe inside of axle 2 (preferably) branches to the switch valve connector P that is provided with into each loading element 6 in the inside of roller 1P NFlow of pressurized is directed into the loading cylinder 20 that is included in each loading element 6 from each switch valve connector via hydraulic channel (it preferably is positioned at the inside of axle).
When the on-load pressure of loading element 6 is regulated through the switch valve of lesser amt; Is favourable by the inclination (pressure level ramping, it is common to all loading elements) of degree of pressure for implement that pressure increases and reduce with certain slope in the time of expectation.This can be through for example implementing according to the pressure valve 50 (Fig. 5) of digital valve technology; By means of this pressure valve; The common degree of pressure that is used for all loading elements can be enhanced, reduces and maintain to a certain degree, and is shorter from the distance that this degree is regulated the pressure change into corresponding loading element through switch.Being in shared pressure valve 50 in the continuous stress state, that be common to all loading elements can be avoided, and is positioned at roller switch inside valve P 1P NWith voltage supply circuit P SDirectly connect.Afterwards, if desired, for example as the voltage supply circuit P that loads SWhen being equipped with pressure accumulated device, because switch valve P 1P NBasically non-leakage, so load pump can be shut down.Therefore, the energy consumption of value-added tax function can reduce to some extent.
Fig. 3 and Fig. 4 show preferred switch valve connector P 1P NThe less load of loading element 6 changes can be by such charge valve P 1P NControl and regulate.Voltage supply circuit P SDegree of pressure by means of being arranged on the outside of roller and being connected to voltage supply circuit P SVoltage supply valve group 50 control.The common degree of pressure of all loading elements 6 changes and can be undertaken by voltage supply valve group 50.Fig. 5 shows preferred voltage supply valve group 50.
Lubricant medium flows in housing 2 through loading element 6.Lubrication flow is for example via one group of lubrication pressure circuit Q SAnd be brought to loading element 6, said lubrication pressure circuit Q SCan branch to lubricated valve Q 1Q N, these lubricated valve Q 1Q NRegulate the lubricant medium stream of each loading element.Therefore, the lubricated supply unit of each loading element is independent of the on-load pressure supply unit.Here the enforcement of lubrication flow is not independently described more particularly.Lubricant medium is via the outside that outputs to roller from the output channel 9 of output pool 19 from the inside of housing 2 (for example, the below of axle 2).Output channel 9 is arranged on axle 2 the inside of roller, and the end identical with inlet flow that output stream can be through axle 2 or another are brought in conveying.
At loading element shown in Fig. 26, wherein, lubricating function is independent of value-added tax function, and this loading element 6 is suitable in the roller of Fig. 1, using.Loading element 6 comprises: piston 7, and its direction along the inner surface of roller housing 1 can load; With arm 10, it separates with this piston, and is arranged in the lubricant medium cylinder 12, and this lubricant medium cylinder 12 is formed on the inside of the skirt 11 of piston.Arm 10 is attached and be fixed to the axle 2 of roller, and is more specifically, for example attached and be fixed to the recess 13 that forms in the axle 2.Arm 10 is sealed with respect to axle 2, and the lubricant medium of between loading element 6 and housing 1, carrying flows and be directed in the lubricant medium passage 14.1 through axle 2, and this lubricant medium passage 14.1 is arranged on the inside of arm 10 and ends at lubricant medium cylinder 12.The second lubricant medium passage 14.2 leads to the lubricant medium recess 16 that the surface 15 of piston, forms from lubricant medium cylinder 12.The volume of lubricant medium cylinder 12 can change along moving of piston 7, and wherein the total length of lubricant medium passage 14.1,14.2 is also changing.Lubricant medium flows to the surface 15 of the part of the sliding shoes that forms loading element 6 from lubricant medium recess 16.
Between the skirt 11 of recess 13, arm 10 and piston 7, define the loading cylinder 20 of loading element 6.First seal 17 is installed between the inner surface of skirt 11 of arm 10 and piston 7.Second seal 18 is installed between the surface of outer surface and recess 13 of skirt 11 of piston 7.Load cylinder 20 and form pressure-resistant seal through first seal 17 that allows piston 7 and move and second seal 18.First seal 17 prevents that lubricant medium stream from mixing with the hydraulic fluid that is used to load.
The lubricating function of loading element 6 can be provided with the first lubricant medium flow channel 14.1 through the arm 10 to Fig. 1 and implement, and lubricant medium stream can be via lubricant medium feed path Q SGet in the first lubricant medium flow channel 14.1.The cylinder body that flow channel 14.1 gets into lubricant medium and limited in arm 10 and piston 7 amasss in 12, and further makes lubricant medium flow to the lubricant medium recess 16 that in the surface 15 of piston 7, forms via the second lubricant medium flow channel 14.2 that in piston 7, forms.Under situation about loading, when lubricant medium pressure was suitable, the proper lubrication dielectric film was between the inner surface of surface 15 and housing 2.
Fig. 3 shows the loading element P of the correspondence of loading element 1P N, in other words, show the switch valve connector that comprises two switch valves.Pressure increases by first switch valve 30, and pressure reduces by the second switch valve 31 in the loading cylinder 20 of loading element 6. Switch valve 30,31 is controlled such that when first switch valve 30 is shown in an open position, second switch valve 31 (pressure increase) in the closed position, and vice versa (pressure discharging).Voltage supply circuit P SIn pressure input part 32, join charge valve P to 1P NCharge valve P 1P NPressure efferent 33 be arranged to and load that cylinder 20 flows and pressure are connected.Pressure input part 32 is connected with the input side of first switch valve 30, and pressure efferent 33 is connected with the outlet side of first switch valve 30.Second switch valve 31 is connected with pressure efferent 33 through its input side, and connects the pond 19 between housing 1 and the axle 2 through its outlet side.
Charge valve P 1P NComprise the control check-valves that is connected with pressure efferent 33.Loading element 6 passes through to discharge from voltage supply circuit P by control check-valves 34 SSupply pressure and open fast.The waste side of check-valves 34 is connected to pond 19.Charge valve P 1P NComprise the load cell PT that is connected with pressure efferent 33.
Fig. 4 shows charge valve P 1P N, wherein the coil of the coil of first switch valve 30 of charge valve and second switch valve 31 is connected to power electronic equipment 40 respectively through electric connector 35 and 36. Electric connector 35,36 for example can be implemented by a pair of cable.In addition, the signal data of load cell PT can be transferred to the outside of roller by electric connector 37 via output stage electronic installation 40 and then via industrial bus 41.Data communication between the outside of output stage electronic installation and roller can be implemented by for example industrial bus 41.
Fig. 5 shows second charge valve 50, and it is at voltage supply circuit P SIn be positioned at the outside of roller, and the pressure of all loading elements 6 that are suitable for exerting an influence changes, as pressure state is tilted.The input side of charge valve 50 is connected to the underground that for example guides the self-hydraulic pump.Through input side, the hydraulic valve commonly used of charge valve 50 51 is connected, and the pressure of hydraulic fluid is by this hydraulic valve 51 and first switch valve 52 that leads.Make the voltage supply circuit P that leads to roller STilt to the expectation constant degree of loading, this can implement through opening first switch valve 52 that is connected in after the hydraulic valve 51 commonly used.Formed mobile connection is that outlet side from first switch valve 52 is to the voltage supply circuit P that leads to roller S, and arrive second switch valve 53 and the 3rd switch valve 54.Second switch valve 53 and the 3rd switch valve 54 are closed during degree of pressure increases.When degree of pressure reduced, first switch valve 52 cut out and second switch valve 53 is opened.For example, when supply pressure is about 10 whens crust, circuit load can be adjusted to 100KN.When avoiding the pressure regulatory function of second charge valve 50, first switch valve 52 cuts out with second switch valve 53 and the 3rd switch valve 54 is opened, and therefore for example guides the underground and the voltage supply circuit P that leads to roller of self-hydraulic pump or pressure accumulated device SDirectly connect.
Fig. 6 shows the first charge valve P 1P NPower electronic equipment 40.1 ... 40.N with the form of series connection and connecting of bus 41, Fig. 7 shows the first charge valve P 1P NPower electronic equipment with the form of star and connecting of bus 41.Bus 41 can be the combination of the star form and the bus of series connection form, and it can comprise the node 43 of star connection part 42 and/or single spider arm 41.
Fig. 8 shows second embodiment according to the roller of the type of Fig. 1, and it comprises each the charge valve P that is used for roller inside 1P NThe output stage electronic installation 40.1 of loading element of correspondence ... 40.N.Output stage electronic installation 40.1 ... 40.N the control module (not shown) outside with being positioned at roller via bus 41 connects.
The non-limiting example that some embodiments of the present invention are provided is more than described.It will be apparent for a person skilled in the art that the present invention is not limited to the details that is proposed, opposite the present invention can implement in other equivalent device.Advantageously, some characteristics of above-mentioned disclosed embodiment can adopt not using under the situation of further feature.
Likewise, description before will be considered to only be used to theory of the present invention is described, but not be confined to this.Therefore, scope of the present invention is only limited by appended claims.

Claims (14)

1. the adjustable roller of the amount of deflection of a fiber web machine comprises: fixed axis (2); Housing (1) rotatably is provided with around said axle (2); And loading element (6), be supported in the said axle (2), in order to loading housing internally through hydraulic medium, and said roller comprises the independent on-load pressure supply unit (P that is used for said loading element (6) S) and lubricated supply unit (Q S), it is characterized in that the first charge valve (P of set of number fluid pressure type 1P N) being set at the inside of said roller, each first charge valve all is arranged for corresponding loading element, and mobile connection of loading cylinder (20) of all being comprised with said loading element (6) of each first charge valve.
2. roller according to claim 1 is characterized in that, the said first charge valve (P 1P NBut) comprise the hydraulic switching valve (30 of at least two electric control; 31); Wherein at least one first switch valve (30) is intended to be used for to said loading cylinder (20) charged pressure, and at least one second switch valve (31) is intended to be used for from said loading cylinder release pressure.
3. roller according to claim 1 and 2 is characterized in that, said roller comprises voltage supply circuit (P S), said voltage supply line sharing is in all loading elements (6), and leads to the inside of said roller, the first charge valve (P from said voltage supply circuit to said digital fluid pressure type from the outside of said roller 1P N) be provided with and flow connect.
4. according to any described roller in the claim 1 to 3, it is characterized in that said roller comprises one group of electrical measurement pressure device (PT 1PT N), this group electrical measurement pressure device is arranged for corresponding loading element, and should be connected with said loading cylinder (20) pressure by group electrical measurement pressure device.
5. according to any described roller in the claim 1 to 4, it is characterized in that the said first charge valve (P 1P N) comprise electrical measurement pressure device (PT 1PT N), the pressure efferent that said electrical measurement pressure device and said first charge valve are comprised (33, P Z) pressure connects, and said pressure efferent leads to said loading cylinder (20).
6. according to any described roller in the claim 1 to 5, it is characterized in that output stage electronic installation (40) is connected and is used for said charge valve (P 1P N), thereby the coil of the switch valve (30,31) of controlling said charge valve at least and being comprised.
7. roller according to claim 6 is characterized in that, said output stage electronic installation (40) is near said charge valve (P 1P N) and be set at the inside of said roller.
8. according to any described roller in the claim 1 to 7, it is characterized in that at least a portion of data/address bus (41) is set in the said roller.
9. according to claim 7 and 8 described rollers, it is characterized in that the output stage electronic installation (40.1 of corresponding loading element ... 40.N) be connected with data/address bus, be used for pressure tester (PT 1PT N) the outside of measuring-signal waiting for transmission from the internal transmission of said roller to said roller, and/or be used for the control signal waiting for transmission of said switch valve (30,31) inside from the external transmission of said roller to said roller.
10. according to any described system that is used for the adjustable roller of load deflection in the claim 1 to 9; It is characterized in that; Said system comprises electric control unit; Said electric control unit is positioned at the outside of said roller, is used to control the loading element of the inside that is arranged on said roller, and these loading elements are in particular the first charge valve (P of digital fluid pressure type 1P N).
11. system according to claim 10 is characterized in that, said system comprises second charge valve (50), and said second charge valve is at said voltage supply circuit (P S) in and be positioned at the outside of roller, be used to control the first all charge valve (P 1P N) common degree of pressure.
12., it is characterized in that said system comprises and said voltage supply circuit (P according to claim 10 or 11 described systems S) the pressure accumulator that connects.
13., it is characterized in that said system comprises and said voltage supply circuit (P according to any described system in the claim 10 to 12 S) load pump that connects.
14., it is characterized in that said control module is suitable for receiving the pressure data (PT of corresponding loading element according to any described system in the claim 10 to 13 1PT N); Said control module is suitable for the first charge valve (P in being arranged at said control module 1P N) the Mathematical Modeling of hydraulic loop on and optimize the opening and closing of switch valve and be arranged at and confirm the said first charge valve (P on the optimizer in the said control module 1P N) control data, said control data is based on the pressure data of the loading element of said correspondence; And said control module is suitable for the control data of the loading element of determined correspondence is sent to the inside of said roller, is used to regulate the said first charge valve (P 1P N).
CN2011800084853A 2010-02-05 2011-02-02 Deflection adjustable roll and system Pending CN102753755A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20105109A FI121896B (en) 2010-02-05 2010-02-05 BOMBABLE ROLL AND SYSTEM
FI20105109 2010-02-05
PCT/FI2011/050086 WO2011095691A1 (en) 2010-02-05 2011-02-02 Deflection adjustable roll and system

Publications (1)

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CN102753755A true CN102753755A (en) 2012-10-24

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CN2011800084853A Pending CN102753755A (en) 2010-02-05 2011-02-02 Deflection adjustable roll and system

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EP (1) EP2501855A1 (en)
CN (1) CN102753755A (en)
FI (1) FI121896B (en)
WO (1) WO2011095691A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012209683A1 (en) 2012-06-11 2013-12-12 Metso Paper, Inc. Roller i.e. bending balance roller, has pressure change part e.g. pump, attached to one supporting element or one supporting element group to supply valve device with pressure different from output hydraulic pressure

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US4106405A (en) * 1976-07-13 1978-08-15 Escher Wyss Limited Controlled deflection roll
CN1037568A (en) * 1988-04-27 1989-11-29 维美德造纸机械有限公司 Roll adjustable in zones
US6497177B2 (en) * 1999-06-10 2002-12-24 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calender arrangement and a deflection controlled roll and method of operating them
US20030022773A1 (en) * 2001-07-25 2003-01-30 Voith Paper Patent Gmbh Deflection controlled roll
EP1526217A2 (en) * 2003-10-23 2005-04-27 Voith Paper Patent GmbH Controlled deflection roll
DE102007051395A1 (en) * 2006-10-30 2008-05-08 Metso Paper, Inc. Variable-flexibility roller for paper or cardboard finishing machines, has pressure accumulator, which has membrane, bubble or piston, with which pressure chamber is divided into two chambers
WO2009077650A1 (en) * 2007-12-14 2009-06-25 Metso Paper, Inc. Method for dealing with faults occurring during the manufacture of a material web

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DE2736656C3 (en) 1977-08-10 1980-05-22 Escher Wyss Ag, Zuerich (Schweiz) Deflection adjustment roller
DE3815462C1 (en) 1988-05-06 1989-09-14 Eduard Kuesters, Maschinenfabrik, Gmbh & Co Kg, 4150 Krefeld, De
FI113794B (en) * 2002-11-14 2004-06-15 Metso Paper Inc Method and arrangement for controlling the position and / or force of an elongated roller assembly
FI118820B (en) 2005-09-14 2008-03-31 Metso Paper Inc Guide arrangement for bend-compensated roller in paper / cardboard machine
DE102009001674A1 (en) * 2009-03-19 2010-09-23 Metso Paper, Inc. roller

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Publication number Priority date Publication date Assignee Title
US4106405A (en) * 1976-07-13 1978-08-15 Escher Wyss Limited Controlled deflection roll
CN1037568A (en) * 1988-04-27 1989-11-29 维美德造纸机械有限公司 Roll adjustable in zones
US6497177B2 (en) * 1999-06-10 2002-12-24 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calender arrangement and a deflection controlled roll and method of operating them
US20030022773A1 (en) * 2001-07-25 2003-01-30 Voith Paper Patent Gmbh Deflection controlled roll
EP1526217A2 (en) * 2003-10-23 2005-04-27 Voith Paper Patent GmbH Controlled deflection roll
DE102007051395A1 (en) * 2006-10-30 2008-05-08 Metso Paper, Inc. Variable-flexibility roller for paper or cardboard finishing machines, has pressure accumulator, which has membrane, bubble or piston, with which pressure chamber is divided into two chambers
WO2009077650A1 (en) * 2007-12-14 2009-06-25 Metso Paper, Inc. Method for dealing with faults occurring during the manufacture of a material web

Also Published As

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FI20105109A0 (en) 2010-02-05
WO2011095691A1 (en) 2011-08-11
FI121896B (en) 2011-05-31
EP2501855A1 (en) 2012-09-26

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