FI117903B - Load of bearings in a calender roll in a multivalue calendar - Google Patents

Description

117903

Loading the bearings of the Multi Roll Calender Calender

The present invention relates to paper and board machines, in particular calenders.

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More particularly, the present invention relates to a method of loading the bearings of a multi-roll calender intermediate roll, the multi-roll calender comprising one or more rolls of which at least one roll has the central axes of at least two calender rolls forming a nip plane.

The invention further relates to a multi-roll calender having one or more rolls, of which at least one roll has the central axes 15 of at least two calender rolls forming a nip plane, and having first loading means such as lower cylinders for loading the lower roll in the nip plane for normal calendering.

Calendering generally aims to improve the properties such as smoothness and gloss of a web material such as ·· * paper or board. In calendering, the web is guided to a nip formed between rolls to be pressed against each other, i.e. a calendering nip, where the web is exposed to temperature, humidity and nip pressure. ·, · · Deformation due to tension. In this context, calender rolls refer to calendering rolls, • top roll means top roll of roller, bottom roller · · · refers to bottom roll of roller and bottom nipper means bottom calender-25 roller nip formed between lower roller and top calender roller.

• ·: Interleaves are used to refer to the calender rolls between the top and bottom of the calender Calendering nips formed with * * · - 'Λ · ... *. Intermediate rolls refer to calender rolls between the upper and ·; ··: lower rollers in the track.

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The term nip plane as used herein refers to the central axis of the calender rolls; level, which in some contexts is also referred to as a nip line or a track line.

With respect to the prior art, reference is made to FI Patent Publication 96334 which discloses a method for calendering paper or similar web material in a calender. In the method, the web material to be calendered is passed through nips formed by a deflection compensated upper roll and a deflection compensated lower roll and two or more intermediate rolls arranged between the upper and lower rolls. The rolls are arranged in a substantially vertical roll. Intermediate rolls are used rolls which have a substantially similar shape to the natural deflection line caused by its own weight. The nip pile load caused by the masses of the intermediate rolls and associated auxiliaries is substantially alleviated in the method and the adjustable load is applied to the calendering nipples by deflection compensated top or bottom and / or external load on the top or bottom roll.

Typically, compression is achieved in a multi-roll calender by securing the top or bottom roller of the roller and squeezing the roller against a fixed roller which may be a roller, a lower roller, or any / some of the spacers. Alternatively, both the upper and lower rollers are pressed against each other, either such that neither of the intermediate rolls is locked in place or that at least one of the intermediate rolls is locked in place. The deflections of the rolls can generally be compensated by deflection compensating devices in the upper and lower rolls, for example, so that the roll nipples have a rectilinear shape as disclosed in U.S. Patent No. 96334.

As it is known in the multi-roll calender track, the central axes of the calender rolls have been * · ** · parallel. The central axes of the calender rolls have been transverse to the direction of movement of the web * · ** · in the CD direction. In this case, there is a web calendering nip between adjacent calender rolls that • j * 30 form a calender roll with a compression *: **: plane parallel to the center axes of the calender rolls of the calender roll. The nip plane P of Fig. 1 3 1 17903 may also be at an angle to the horizontal such that a calender roll is formed between the rolls 11-15.

Calendering technology is increasingly switching to on-line calendering 5 as the speeds required by paper machines increase. Multi-nip on-line calendering is calendering in a calendering unit where nipples are formed alternately? ' • -Il rolls between successive smooth roller press rolls, such as a metal roller, and a resin coated roller, such as a polymer roller, and / or a pivoting nip. In multi-calender calendars, the line load increases from the upper nip to the lower nip 10 due to the traction of the earth if roller lightening systems are not used. In order to eliminate downward pressure on the line, to control the roll deflection line, and also to quickly open the roller, the current multi-nip calendars use roller-compensating roller relief provided by a cylindrical and lever arm mechanism. Such a roller lightening system is used in the multi roller calendars known by the Applicant's 15 OptiLoad and TwinLine brands.

Multi roll roll calenders are known in the art, with a roll set consisting of two rolls, each having at least two roll rolls, for example one with five rolls and the other with six rolls. With the advancement of paper machine speeds 20 and the increasing need for online calendering, the ability to perform different types of calendering with the calender is also needed, which can be accomplished! ί, for example, in a semi-nip mode known per se, in which the paper web is guided through the calender so that during calendering only a portion of the possible nip * · 1 • 1 * ··· 1 of the calender is calendered. In partial nipples, one known practice has been to lock the calender levers by hydraulics during partial nipples.

As is known in the art, for example from FI-96334, the calender rolls forming the multi-roll calender • ·> * 1 nip have roller bearings which cause ··· identified certain problems which required special arrangements.

·: · 30 «im · ·« 1 • · 4 117903

In some cases, such as partial nip driving, the multi-roll calendars are driven with line loads that cause a very low load on the roll roller bearings, even the so-called. zero load. This is very problematic for the roller bearings because, under zero load, the roller bearings of the roller bearings have a considerable slip relative to the bearings instead of rolling, resulting in a rather rapid breakage of the bearing. In a zero bearing condition of the rolling bearing, the point of contact between the rolling elements and the bearing surfaces of the rolling bearings is adversely vague and variable, since the rolling bearings of f bearing do not regularly squeeze the rolling elements between them in any direction with sufficient force.

If the multi-roll calender roller is almost vertical, then the earth's gravity is parallel to the line load and roller movement. When the line load difference upwards between the roll nipples reaches its own roll mass, the roll bearing falls within the loading range of 11a-15. Generally, the bearing load should be at least about 2% of the maximum bearing load. When using the Multi Roll Calender Lower Nip, the upper roller is easily exposed to a zero load area, thereby reducing the available line loading range of the calender. For example, when driving a partial nip in which a non-fibrous web is calendered1r is rolled in the two lower nipples of a multi-roll calender roller, the three lowest rolls of that roller are involved in calendering, the zero load problem especially the middle and top rolls. .

The object of the present invention is to eliminate the above problems and drawbacks, or at least to reduce the above-mentioned drawbacks, and to prevent or at least reduce the zero-load position of the roller bearing of the multi-roll calender roller. · * ·: Ί a line load area where the load on the calender roller bearings would be too low.

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It is an object of the invention to provide a method in a multi-roll calender and a multi-roll calender that can achieve better calendering potential in a multi-roll calender, particularly to increase the line loading of a multi-roll calender in a partial nozzle loading area Problems with Software.

To achieve the object of the invention, the method of the invention for projecting a bearing of a multi-roll calender calender roll is essentially characterized by what is set forth in the characterizing part of claim 1.

The multi-roll calender according to the invention, in turn, is essentially characterized by what is disclosed in the characterizing part of claim 5.

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The invention provides significant advantages over prior art solutions, and among these benefits, the following may be mentioned. Since the lower roll of the multi-lath calender and, in accordance with the second embodiment of the invention, also the intermediate roll over the lower roll can be disposed off the track line Correspondingly, according to another embodiment of the invention, the bearings of the second intermediate roller can also be subjected to a line power dependent horizontal load component from below. Such horizontal force is able to compress the bearings of the intermediate roll

Jfi #: Rolling elements and rolling surfaces against each other and preventing the rolling element • * ·, · · from sliding on the rolling surfaces. By utilizing said horizontal force, * ':, · · especially for partial nip driving, the line load area can be substantially reduced, whereby the load on the calender roller bearings would be too low. Thus, 25 calendering potentials, i.e., line loading areas, can be increased, whereby the fiber web can be • * ϊ controlled by the bearing of the roller participating in the calender, without suffering a load problem.

····· • · * ί "ί Part-nip run is often calendered with a matte-grade fiber web. With a matte-quality run, · ··· 30 times, a low load is selected for calendering, especially to avoid zero loading. is a significant benefit.

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The so-called calendering nip. at zero load, the rolling elements of the rolling bearing cannot slide with respect to the bearing frames instead of rolling, which results in an improvement in the bearing life and generally in the fiber web machine.

5 Replacement times for broken bearings and cooling and heating times for heated calender rolls can thus be avoided and more time spent on the actual calendering process. In addition, bearings do not have to be stored to such an extent for bearing damage. | The invention makes it possible to move the lower roll of a multi-roll calender also for roll change. There is no need for a special tool for moving or lifting the lower roller, for example, ordinary lifting straps can be used for lifting and moving.

The invention will now be described with reference to the accompanying principal figures, which illustrate the method and the multi-roll calender according to the invention without, however, limiting the invention to those shown in the figures.

Figure 1 illustrates a multi-roll calender track where, in normal calendering, the fiber web is calendered at all nips between the calender rolls, all nips closed: **: 20.

•: 7 ··· ··· · · · · * ·, · J Figure 2 shows the roller of the multi-roll calender using the two lower rolls for partial nip driving, whereby the web is calendered in a single nip.

··· '- • * • · • * · 25 Figure 3 shows a roller for a multi-roll calender using t ·: the three lowest rolls for partial nip driving, whereby the web is calendered in two nips.

*: Figure 4 shows a support solution for a lower roll of a multi-roll calender.

* · • j. Figures 1-4 schematically illustrate a multi-roll calender 100. In particular, Figs.

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The multi-roll calender rolls 10 including the upper roll 11 and the lower roll 15 and the 7 117 903 three intermediate rolls 12, 13 and 14 arranged between the upper and lower rolls, the upper, lower and intermediate rolls forming the calender rolls 11-15 of each roll. In multi roll calendars, the fibrous web to be calendered is not shown. The intermediate rollers are mounted on the body of the multi-roll calender by means of, for example, support and loading arms 5 which pivot about the joint, the hinges and the arms of which are not shown in more detail. The body of the multi-roll calender is illustrated in the figures by a dotted dash la denoted by a reference F.

In Figure 1, the roller 10 of the multi-roll calender 100 is in a full nip drive position called a normal calendering position. In Figures 2 and 3, the tracks 10 are shown in 10 partial nip position.

In tracks, adjacent calender rolls 11.12; 12.13; 13,14 and 14,15 form calender roll pairs, wherein the calender rolls can each form a fiber web calendering nip 1, 2, 3 and 4 with reference marks 15 through 3 from top to bottom. In this context, the invention has been described using, for example, a five-roll and a four-nip roller as an example, but other numbers of rolls and nips on the roller may be equally appropriate. It may also be an application of the roller assembly 10 ^ • i * described in connection with the invention in each case of a single roll multi roll roll calender 100 in a two roll or multi roll roll calender. Thus, the multi-roll: 20 lacquer may comprise, for example, two five-roll rolls.

In general, in a multi-roll calender, compression of a fibrous web can be accomplished by either a fixed • •; · By attaching the upper roller 11, lower roller 15 or one of the intermediate rollers 12, 13, 14 of the track • ««.

* ... · with respect to the calender body F and squeezing a plurality of rolls as a roll stack or a single 25 roll relative to the body F against a fixed roll which may be a top roll 11, a lower roll 15 or alternatively, both of the upper and lower rollers may be pressed against each other, either such that neither of the intermediate rolls is locked in place or at least one of the intermediate rolls is locked in place. is locked in place. In many solutions, the compressive forces of the upper roller 11 · * · 30 and / or the lower roller 15 can be adjusted • M * · * · *: independently. In the multi-roll calender, the upper roller and / or lower roller may be provided with 8 117903 loading apparatus arranged inside the jacket and / or the upper roller may be loaded with an overhead loading cylinder and / or the lower roller shape. The deflection compensating devices are typically located in the upper and / or lower position, but also some of the means may be provided with deflection compensating means.

Figures 1-4 schematically illustrate the invention in a single-roll multi-roll calender to provide different driving modes. To accomplish partial nip driving, the lowest or second lowest intermediate roll of the roller 10 can be locked, thereby loading the rolls above or below the locked roll to provide the required number of nips. Figures 2 and 3 show how one or two nipples can be provided underneath a particularly locked intermediate roll for 15 partial nip runs in the lower calender position.

In Figure 1, the roller 10 of the multi-roll calender 100 is shown in a position where all the calendering nipples upper nip 1, spacer nip 2, spacer nip 3 and lower nip 4 are ··· closed in normal calendering, whereby the fiber web is calendered in four closed 4. The arrangement shown in Fig. 1 provides a driving mode, in which calendering is performed on track 10 by five rolls 11-15. Thus, the central axes of the calender rolls 11, 12, 13, 14 and 15 of the roller jet j10, respectively, are Cu, · · · · · C12, Co, Cm and Cl5 forming the nip plane P.

Fig. 2 shows a driving method in which the track 10 uses the two lower rolls, i.e., · rolls 14 and 15, so that a sub-nip 4 is available for partial nip. ··· * for partial nip driving in at least one roller of the multi-roll calender 100 at least one of the 10 lower rollers *: **: 15 the central axis C15 is moved, without being removed from the multi-roll calender 100, to the side of the plane! V] 4 passing through the central axis C14 of the intermediate roll 14 above the lower roll 15 which. In the case shown in Fig. 2, the plane Vi4 is coincident with the nip plane P when M «* ·; ··· when the nip plane P is vertical. The lower roll 15 is loaded against its upper spacer 14 by other loading means 18 at an angle? 15-25 °, more preferably? 22, relative to the vertical plane. Figure 2 shows that the lower plate 15 is displaced in the nip plane outside the nip plane P as viewed from the direction F of the multi-roll calender 100. In this partial nip drive situation (not shown), the web 5 is calendered in the sub nip 4 of the roller 10 of the multi-roll calender 100 formed by a substantially inclined angle a between the lower roller 15 and the overhead roller 14. The term overhead roller 13 is used herein; 14 positions on the rack / roll stack as the next higher calender roll, although this intermediate roll is not vertically exactly the next lower calender roll 14; 15, but these calendering rollers can be brought into nip contact under load against each other at a substantially oblique angle relative to the vertical plane as shown by the invention.

The situation illustrated in Figure 2 is accomplished by the removable lower roll 15 support solution shown in Figure 4, in which the lower roll does not need to be detached from the multi-roll calender 100 for transfer. In normal calendering, the lower roll 15 is disposed as shown in Figure 1.

···· 20 • · * * # j As the multi-calender calender 100 moves from normal fishing caliper to calibratory fiber web in partial nip mode, the lower roll 15 of the multi roll calender 100 is moved away from the line 10 of the track 10 so that the lower caliper 15 can be loaded. Significantly, the inclined angle? relative to the vertical plane is suitably 15-25 °, more preferably the angle? ·: · · a is about 22 °. Generally, in paper machine lines, the roll masses and line loading areas * * * are such that the bearing load of the bearings can be significantly eliminated to almost the full *: ** angle if the lower roller is at an angle of 15-25 °, preferably about 22 °. line. The angle shown is influenced by the mass, width, and line load of the rolls used. Commonly used roll masses, roll widths, and line loads provide about 37% of the horizontal force Fh applied to the roller bearings at 22 ° nip load, and said angles are also suitable for use in the sub-nip 4 and sub-nip 3 in the sub-nip.

Figures 2 and 3 illustrate arrows showing the nip pivoting forces FN acting on the sub-pins, which are divided into horizontal force component Fh and vertical force component Fv. The reference entries are provided with an indexing corresponding to the reference entry of the nip in Fig. 3.

In Fig. 2, the oblique nip load FN creates a horizontal power component Fh on the bearings of the intermediate roll 14, which prevents the bearings from falling to zero load. The horizontal force component Fh of the lower nip 4 bends the intermediate roll 14 above the lower roll 15 in a horizontal plane, but the deflection effect is insignificant with the used partial nip liner loads, for example 5-100 kN / m, covering most of the nip calender matte and news qualities.

Fig. 3 illustrates a partial nip driving mode according to a preferred further embodiment of the invention, wherein the roller 10 uses three lower rollers, i.e., an upper ··· intermediate roll 13, a lower intermediate roll 14 and a lower roll 15, where two nips are available for partial nip driving and a spacer above it. The explanation of Fig. 3 • · ·; The description points i: "and the reference numbering associated with FIG. 2 may be used, where applicable, to assist. In contrast to the representation of FIG. 2, FIG. using the intermediate nip 3 above the sub-nip 4 in a partial nip drive, whereby also the center axis Cu of the upper intermediate roll 14 of the lower roll 15 is shifted aside from the nip plane P 25 in the same direction as the central axis C15 of the lower roll 15. Thus, moved in a partial nip drive outside the nip plane • · · P viewed from the direction F of the multi-roll calender 100. Then: **: the lower roll 15 is loaded, in addition to the lower intermediate roll 14, by "1" 14 over the intermediate intermediate roll 13 15 ° to 25 °, more preferably at an angle α of about 22 °, relative to the vertical plane.

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Naturally, the nip relief caused by the masses of the intermediate rolls and associated auxiliaries is also used.

Figure 4 illustrates how the lower roll 15 is moved, without being detached from the multi-roll calender 100, to a side V4 that passes through the central axis Cu of the intermediate roll 14 above the lower roll 15. The lower roll 15 ', represented by dotted dashes, represents the lower roll 15 in a partial nip drive. The lower roll 15 ', shown by dashed dashes, represents the lower roll 15 at the roll change station.

According to one embodiment of the invention, the normal line loading of the lower roll 15 is made by first loading means, such as lower cylinders 16, which are large hydraulic cylinders and are not used for partial nip drive loading. In this case, the lower roller is in the position shown in reference numeral 15 in Fig. 4 in the nip plane P of the rack 10, mounted on bearing housings 19 mounted on load arms 20 in horizontal position.

Partial nip drive loading is effected by separate second loading means 18, which are, for example, hydraulic cylinders smaller than the lower cylinders 16. This has the advantage of the positioning speed and sensitivity provided by the smaller cylinders. Alatela 15 • · · t; ***. 20 is moved to a position corresponding to the partial nip position 15 'to the side of its bearing housings 19 • · ·; Supported by means of guide surfaces formed by transfer means 17 such as horizontal guides and bearing housings, and additionally by means of lateral displacement may be used, for example, electromechanical or hydraulic actuators known per se. In the embodiment of Fig. 4, the new support arrangement of the lower roller 15 is arranged in connection with the load arms 20 carrying the bearing housings 19 of the lower roller 15. For partial nip:. · ·, The bearings 19 of the lower roll 15 are displaced laterally by the transmission means y * ·· 17 arranged on the loading arms 20 and the bearing housings 19 of the lower roll 15 for lifting; l • ...

·: · * On the load arms 20 by the second load means 18 acting on the load arms 20. The second load means 18 is mounted between the load arms 30 20 and the body F. The load arms 20 supporting the bearing housings 19 are arranged. The jig is mounted on the body F of the multi-roll calender 100 for both vertical movement and tilting to a position other than horizontal 1290. The loading arms 20 are loaded with lower cylinders 16 for normal calendering and 18 for partial nip driving.

The vertical displacement of the load arms 20 in the frame F is accomplished by vertical carriages 22 movable along the slides 21 of the frame F. 15 for pivoting to the nip contact and for loading the load arms 20 are pivotally mounted with respect to the pivots 23 for tilting to the vertical carriages 22 on the body F. by means of the cylinder brackets 25, to the second loading means 18, which is subsequently secured by The locking method 24 is opened to furnish the loading arms 20 around the hinges 23 and to raise the lower roller to the partial nip drive 15 'to load the loading means 18.

• · · * 20 * ·· ...

The stiffening of the lower roller 15 is made such that the lateral displacement of the lower roller 15 and I l | in addition, a loading station 15 'against an intermediate roll 14 may be made during a fiber web, such as paper change, in less than 5 minutes.

In Figure 4, the lower rollers 15 are shown by dotted dashes at the roll change station 15 ”.

• ·: It is possible to move the lower roller 15 by means of conveying means 17 to vertical lifting lines * ··· ··· ”L, whereupon conventional lifting straps can be used for lifting and moving. In this case, no special tool is required for moving or raising the lower roller 15. Known such special tools include: special hooks for lifting the roll and ··. 30 lower roller roller transfer device.

···· 1 • · Π 117903

The method of the invention and the multi-roll calender can prevent a zero load situation of rolling roll / roll roller bearings, such a situation that may occur in partial nip driving when it is desired to drive with line loads that cause very little load on the rolling bearings. In a zero boom situation, the rolling 5 roller bearings would slide with respect to the bearing frames instead of rolling, resulting in a fairly rapid bearing breakage. The force exerted by the mass of the intermediate roll (s) and the acceleration of the earth's gravity on the calendering nipple can be known to be reduced by actuators such as cylinder actuators acting between, for example, a multi-roll calender body and support and loading arms. 2 of the lower roll 15 and its center axis C15, flanked by a plane V14 passing through the center axis Ch of the intermediate roll 14 above the lower roll 15, the bearings of the intermediate roll 14 are subjected to a line load dependent horizontal force component Fh. The same applies to the embodiment of Fig. 3, wherein the bearings of the two intermediate rollers 15 above the lower roller are subjected to line load dependent horizontal force components Fh3 and Fh4. The method of the invention and the multi roller calender can reduce the line loading area 14 the load on the roller bearings; · the load would be too low and thus allow the rolling bearing roller members to roll relative to the bearing frames instead of sliding, which would result in a rather rapid breakage of the bearing.

··· • 1 · ♦ ·· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · The invention can be utilized in rebuild-type calender structures, of less than 25.

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Claims (10)

117903 14 A method for loading the bearings of an intermediate roll (13, 14) of a multi-roll calender (100), the multi-roll calender comprising one or more rolls (10), 5 of which have at least one roll center center axes (Cu, C15) forming a nip plane (P) (15) being loaded in the nip plane (P) by first loading means, such as lower cylinders (16), characterized in that, for partial nip driving, the central axis (Cu) of the lower roller (15) is displaced from said multi roller calender (100) ) detach the mat, aside from the plane (Vu) passing through the center axis (Cu) of the upper roller (14) above the lower roller (15), and - the lower roller (15) is loaded against its upper intermediate roller (14) by other loading means (18) 15-25 ° relative to the vertical. Method according to Claim 1, characterized in that the lower roller (15) is loaded against its upper intermediate roller (14) at an angle α of about 22 ° with respect to the vertical plane. * ·· * • · * *; ***: 20 Method according to claim 1 or 2, characterized in that the central axis (Cm) of the intermediate roll (14) above the lower roller (M) is offset from the nip plane (P) j in the same direction as the central axis (C15) of the lower roller (15). * * • · * · »· • · · · * * * 'ί.,. Ϊ Method according to Claim 3, characterized in that, through the intermediate roller (14) above the lower roller (15) 25, the intermediate roller above this intermediate roller (14) is loaded at an angle α of 15 ° to 25 °, more preferably at an angle α of about 22 °, relative to *** · 3 ·.,. ·, In tea to vertical. ····· • * *: **: 5. Multi-roll calender (100) having one or more rolls (10), of which at least * 30 in one roll (10), the central axes (Cm,) of at least two calender rolls (14, 15). «·· * .... j C15) form the nip plane (P), and having first loading means such as, 5 1 17903 lower cylinders (16) for loading the lower plate (15) in the nip plane (P) for normal calendering, characterized in that for a partial nip, said at least one roller (10) of the multi-roll calender (100) comprises: - transferring means (17) for moving the center axis (Q 5) of the lower roll (15) without detaching the multi-roll 5 (15) ) via the center axis (C 14) of the upper intermediate roll (14), and - the second loading means (18) for loading the lower roll (15) against its upper intermediate roll (14), for loading the lower roll (15) against its upper intermediate roll (14). ° relative to the vertical. Multi-roll calender according to Claim 5, characterized in that the lower roll (15) is arranged to be loaded against its upper intermediate roll (14) at an angle α of about 22 ° with respect to the vertical plane. 15; ' Multi-roll calender according to Claim 5 or 6, characterized in that the central axis (Ch) of the intermediate roll (14) above the lower roll (15) is offset from the nip plane (P) in the same direction as the central axis (C15) of the lower roll (15). · »· • · · *: ***: 20 Multi-roll calender according to Claim 7, characterized in that the lower roll • * *; (15) via an overhead intermediate roller (14), the intermediate intermediate roller (13) of this intermediate roller (14) is arranged to be loaded at an angle α of 15 ° to 25 °, more preferably at an angle α of approximately 22 ° relative to the vertical plane. * · · * 5 • * · * · • * • · * Multi-roll calender according to one of Claims 5 to 8, characterized in that it comprises a body (F) to which the load arms ·· # * ... · (20), which are pivotally mounted (23), are mounted on the lower roller (15). laterally displaceable bearing housings (19) are supported by **, and second loading means (18) are provided between the loading arms (20) and the body (F) for moving the lower roll (15) into the nip contact and for loading. 30 ···· • * 16 1 1 7903 Multi-roll calender according to one of Claims 5 to 9, characterized in that the second loading means (18) are hydraulic cylinders smaller than the lower cylinders (16). 5 ··· »·« »• • • • • • • • • • • • • • • • • • • · · · · · · · · · · · · · · · · · · · ··· * · · 1 1 1 1 1 90 90 90 90 90 90 90 90 90 90 90 117903