WO2006040073A1 - Systeme de corps pouvant etre deplaces les uns par rapport aux autres, conserve en atmosphere controlee - Google Patents

Systeme de corps pouvant etre deplaces les uns par rapport aux autres, conserve en atmosphere controlee Download PDF

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Publication number
WO2006040073A1
WO2006040073A1 PCT/EP2005/010782 EP2005010782W WO2006040073A1 WO 2006040073 A1 WO2006040073 A1 WO 2006040073A1 EP 2005010782 W EP2005010782 W EP 2005010782W WO 2006040073 A1 WO2006040073 A1 WO 2006040073A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
inner body
gas
microholes
arrangement according
Prior art date
Application number
PCT/EP2005/010782
Other languages
German (de)
English (en)
Other versions
WO2006040073B1 (fr
Inventor
Michael Muth
Georg Slotta
Original Assignee
Aerolas Gmbh Aerostatische Lager.Lasertechnik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aerolas Gmbh Aerostatische Lager.Lasertechnik filed Critical Aerolas Gmbh Aerostatische Lager.Lasertechnik
Priority to AT05795041T priority Critical patent/ATE463678T1/de
Priority to DE502005009376T priority patent/DE502005009376D1/de
Priority to EP05795041A priority patent/EP1797344B1/fr
Publication of WO2006040073A1 publication Critical patent/WO2006040073A1/fr
Publication of WO2006040073B1 publication Critical patent/WO2006040073B1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/32—Arrangements for turning or reversing webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/111—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along a curved path, e.g. fluidised turning bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1131—Porous material

Definitions

  • the invention relates to a gas-bearing arrangement of relatively movable bodies and a method for producing a gas bearing for such an arrangement.
  • Air supply of the air bearing formed thereby takes place through the inner body consisting of sintered material.
  • sintered body are limited in their carrying capacity and rigidity.
  • the air cushion formed by the air flowing out of the sintered material in the air bearing is very inhomogeneous, whereby the storage is very indefinite.
  • an aerostatic bearing is known as combined axial and radial bearings, in which the Air supply structure is provided for the aerostatic bearing in the outer stationary bearing body, wherein the inner bearing body is formed as a rotational body.
  • the introduction of the microholes does not take place from the bearing side, but from the side facing away from the bearing side of the outer body, in which the gas supply structure is provided.
  • Object of the present invention is to provide a gas-bearing arrangement of relatively movable bodies, which has an outer moving body, which can also reach high speeds of movement and has a low-inertia startup behavior. Furthermore, it is an object to provide a method for producing a gas bearing for such an arrangement.
  • the first object is achieved by the gas-bearing arrangement with the features of patent claim 1.
  • microholes are introduced from the side of the bearing surface into the inner body, then the production costs are significantly reduced.
  • the particularly advantageous preferably two-part design of the inner bearing body consisting of the support body and the sleeve or bearing shell makes it possible to achieve both a high load capacity of the inner bearing body, as well as to allow the introduction of high-precision micro holes in the storage area.
  • the support body can be configured in the required dimensional stability, without having to take into account the required for the introduction of micro holes in the bearing surface small wall thickness in this area consideration. This small wall thickness is provided in the gas-tightly applied to the support sleeve or bearing shell. In these can then be easily introduced the microholes.
  • microholes are laser drilled microholes.
  • the sleeve or bearing shell is provided on its outer circumference with a friction-reducing coating.
  • a friction-reducing coating provides runflat performance if, in the event of overload, bearing surface contact should occur between the relatively moving bodies.
  • the microholes of a radial plane are not exactly aligned radially, but are inclined at an angle to the radial direction. In this way, the gas cushion can be set in motion in the bearing in a desired circumferential direction and a predetermined direction of contact for the outer body can be determined.
  • the inner body is a body of revolution and the outer body is stationary.
  • the outer body is provided in its bearing surface opposite the inner body with an inner peripheral groove into which at least one connected to a compressed gas source Gaszu 1500kanal, and the inner body is in an axially central portion of the outer body opposite bearing surface with at least one gas inlet bore the gas supply structure provided, wherein the at least one gas inlet bore of the Inner circumferential groove opposite.
  • the pressurized gas is introduced from the outside into the rotating inner body, without the rotating inner body having to have a compressed gas connection mechanically connected to the rotating inner body, whereby the friction in the rotation of the inner body is substantially reduced.
  • the inner body is provided in its outer body opposite bearing surface with an outer circumferential groove, wherein at least one
  • Gas inlet passage of the gas supply structure opens into the outer circumferential groove, and wherein the outer body is provided in an axially central portion of the inner body opposite bearing surface with at least one opening into this bearing surface Gaszu 1500kanal which is connected to a compressed gas source, wherein the at least one Gaszu 1500kanal theticianrhythmsnut opposite.
  • Both aforementioned embodiments have the advantage that the inner rotary body is not mechanically connected to a compressed gas source, which significantly reduces the rotational friction of the inner body.
  • the arrangement of the inner circumferential groove or the outer circumferential groove substantially in the - viewed in the axial direction - central portion of the respective bearing surface causes the flow resistance along the bearing gap in the respective axial direction is so high that the gas supplied from the outer body does not escape through the bearing gap, but through the at least one gas inlet bore of the inner body in the inner
  • the Gas-bearing arrangement is to be dimensioned so that the flow resistance between the at least one gas inlet bore and the opening into the bearing gap microholes is lower than that Flow resistance between the inner circumferential groove or the outer circumferential groove and the respective axial end of the common bearing surface.
  • the sleeve or the bearing shell Due to the airtight application of the sleeve or the bearing shell on the support body, it is possible to prefabricate the sleeve or bearing shell with the desired dimensions of a material that allows a quick and easy insertion of the microholes using the high-energy radiation, while the support body of a Material can be manufactured, which has optimal properties for the load capacity.
  • the sleeve or the bearing shell can be brought to a desired dimension after application to the support body and prior to the introduction of the micro-holes by means of cutting and / or grinding machining of the outer circumference.
  • the sleeve or the bearing shell can first be applied to the support body in a statically stable form, preferably shrunk on, or adhesively bonded.
  • the thin wall thickness required for optimum introduction of the microholes is therefore produced only after the application of the sleeve or bearing shell to the support body by the machining and / or grinding of the outer circumference of the sleeve.
  • the sleeve can also be formed, for example, as a high-precision molding part of the inner circumference of the outer body designed as a rotational body.
  • the high-energy radiation source is a
  • Laser device formed so that the microholes means a laser beam are introduced into the sleeve or bearing shell.
  • FIG. 1 shows a longitudinal section through a first 10 gas-bearing arrangement according to the invention
  • FIG. 2 shows a cross section along line II-II in Fig. 1.
  • FIG. 3 shows a cross section analogous to FIG 2 by a -] _5 alternative embodiment of this first arrangement.
  • FIG. 4 shows a cross section through a modification of the first embodiment of the gas-bearing arrangement according to the invention
  • Fig. 5 is a cross-section similar to Figure 4 through an alternative embodiment of this second arrangement.
  • Fig. 6 is a longitudinal section through another
  • Fig. 7 is a longitudinal section through yet another modified embodiment with a rotating inner body 30.
  • Fig. 1 as an axis trained and hereinafter also referred to as a bearing body inner body 1 is shown, which in a conventional manner in a only 5 shown schematically and with dashed lines shown housing 2 is supported.
  • the inner body 1 has a supporting body 10 clamped in the housing.
  • At its protruding from the housing 2 side of the support body 10 is provided with a circular cross-section receiving portion 12 for a bearing sleeve 14.
  • the bearing sleeve 14 is shrunk onto the receiving portion 12 and connected in this way gas-tight with the support body 10.
  • the support body 10 is provided in the region of the receiving portion 12 with recesses formed as circumferential grooves 120, 121, 122, 123. Each of these provided on the outer circumference of the receiving portion 12 circumferential grooves 120, 121, 122, 123 is connected via at least one radial bore 124, 125, 126, 127 with an axial bore 11 of the support body 10.
  • pressurized gas in particular compressed air
  • the sleeve 14 is provided in the region of the annular grooves 120, 121, 122, 123 with radially extending microholes 140, 141, 142, 143, which, starting from the bearing surface 14 'on the radially outer periphery of the bearing sleeve 14, through the wall of the bearing sleeve 14 therethrough into the associated annular groove 120, 121, 122, 123 lead.
  • a plurality of radial bores 140, 141, 142, 143 are provided over the circumference of the bearing sleeve in the region of each annular groove.
  • FIG. 3 shows an enlarged section of a section similar to that in FIG. 2, but in this embodiment the micro-holes 140 'are inclined at an angle ⁇ to the radial direction R.
  • the gas cushion formed in the bearing gap 30 rotates in the direction of the arrow U and thus ensures a predetermined start-up behavior of the outer rotary body 3 in the direction of the arrow U.
  • the support body 10 is first prepared by providing the gas supply structure formed by the axial bore 11, the radial bores 124, 125, 126, 127 and the annular grooves 120, 121, 122, 123 in the support body 10 of an inner bearing body 1. Then, on the circular portion 12 of the support structure 10, the bearing sleeve 14 is airtight, e.g. shrunk or glued, so that the bearing sleeve 14 is connected in a gas-tight manner with the support structure 10.
  • the wall thickness of the annular bearing sleeve 14 is reduced by machining and / or grinding its outer periphery to a predetermined thickness d, which is sufficiently low to allow easy insertion of microholes by means of a high-energy radiation source, such as a laser device.
  • a friction-reducing coating is applied to the bearing surface 14 'before or after the introduction of the microholes.
  • the outer rotational body is still pushed onto the inner bearing body and, if necessary, secured in a known manner in the axial direction against displacement.
  • FIG. 4 shows a modified embodiment of the first arrangement similar to FIG. 2.
  • the bearing sleeve 114 is not provided on its entire circumference with the trained as micro holes radial bores 140, but only in a peripheral portion of about 170 °.
  • This gas-bearing arrangement with the bearing sleeve 114 is designed as a deflection bearing for a guided on the gas cushion over the bearing surface 114 'to the inner bearing body 101 around material web 4, wherein the material web 4 in the arrow direction around the fixed bearing body 101 runs around.
  • FIG. 1 A modification of a fixed bearing body 201 is shown in FIG.
  • the bearing body 201 is formed from a supporting body 210 designed as a support beam.
  • the support body 210 is provided in a portion with an arcuate or curved in cross section formed bearing shell 214 which is connected to the bearing body 210 airtight, for example glued, is.
  • the bearing shell 214 has a likewise curved bearing surface 214 ', over which a material web 204 rotates.
  • the material web 204 moves in the direction of the arrow relative to the stationary bearing body 210, wherein the compressed gas flowing out of the microholes 240 provided in the bearing shell 214 carries the material web 204.
  • the support body 210 is analogous to the support body 10 with a pressure gas supply bore 211 extending in the axial direction and outgoing from this pressure gas bore 211 Provided radial bores 224, which each open into a groove-like compressed gas chamber 220, in which open the micro holes 240.
  • the respective inner body 301, 401 is designed as a rotational body, while the respective outer body 303, 403 is stationary, ie stationary, with respect to the rotational movement.
  • the supply of the pressurized gas for acting in the respective inner body 301, 401 provided
  • Gas supply structure for loading the respective compressed gas cushion between the opposing bearing surfaces 313 'and 314' or 413 'and 414' takes place from the outside through a gas supply channel 340 and 440, which is provided in the outer body 303 and 403, respectively.
  • FIG. 6 shows an embodiment in which the outer body 303 is provided with an inner peripheral groove 342 in its bearing surface 313 'facing the inner body 301.
  • the gas supply passage 340 opens.
  • the inner circumferential groove 342 there is provided at least one gas entrance hole 311 'in the bearing surface 314' of the inner body 301, which is connected to the gas supply structure 311 formed in the support body 310 of the inner body 301.
  • the compressed gas introduced into the inner circumferential groove 342 from a compressed gas source via the gas supply passage 340 can enter the gas supply structure 311 of the inner body 301 through the gas inlet bore 311 'and from there to the microholes 350, 351, 352 provided in the bearing sleeve 314. 353 passed, through which it enters the bearing gap 330 to produce there the compressed gas cushion for storage.
  • the circumferential groove is not in the inner periphery of the bearing surface 413 'of the outer body 403, but as the outer circumferential groove 442 in the bearing surface 414 'of the inner body 401.
  • the gas supply passage 440 opens into the bearing surface 413' of the outer body 403 in a portion facing the outer circumferential groove 442.
  • the gas inlet bore 411 ' opens into the outer circumferential groove 442 of the inner body 401 and is also connected to the gas supply structure 411 provided in the supporting body 410 of the inner body 401.
  • the compressed gas flows from the compressed gas source through the Gaszu 1500 in theticiansnut 442 and from there through the gas inlet bore 411 'in the gas supply structure 411 and from there through the provided in the bearing sleeve 414 micro holes 450, 451, 452, 453 in the bearing gap 430, where it forms the compressed gas cushion for storage.
  • the inner circumferential groove 342 and the outer circumferential groove 442 are arranged in the region of the center of the axial extension L of the mutually opposite respective bearing surfaces 313 ', 314' or 413 ', 414'.
  • the ratio between the thickness d of the respective bearing gap to the respective distance between the mecanicsnut 342 and the technicallymaysnut 442 and the respective axial outer end of the respective common bearing surfaces is dimensioned so that the flow resistance of the respective groove 342, 442 directly through the respective bearing gap 330, 430 to the outside is greater than the flow resistance through the respective gas supply structure 311, 411 and the microholes connected thereto and outwardly in the axis-parallel direction, so as to ensure that the introduced into the mecanicsnut 342 andproofallell 442 pressurized gas is not directly through the respective bearing gap 330, 430 escapes, but by the respective Gas supply structure 311, 411 and the associated microholes is introduced into the bearing gap.
  • the material webs shown in FIGS. 4 and 5 can be, for example, paper webs or film webs made of plastic or metal, for example aluminum.
  • the device of the invention may assume other than the above-described embodiments.
  • the device may in particular have features that represent a combination of the respective individual features of the claims. It is also fundamentally possible, even with flat bearing surfaces, to introduce the microholes from the side of the bearing surface into the corresponding bearing body.

Landscapes

  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Fluid-Damping Devices (AREA)
  • Air Bags (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)

Abstract

L'invention concerne un système conservé en atmosphère contrôlée, de corps pouvant être déplacés les uns par rapport aux autres, comprenant un corps intérieur (1; 101, 201; 301; 401) avec une surface d'appui (14', 114', 214', 314', 414') s'étendant de manière courbée, au moins par sections et un corps extérieur (3; 203, 303; 403) entourant au moins en partie la section courbée de la surface d'appui (14', 114', 214'; 314'; 414') du corps intérieur (1; 101; 201; 301; 401). Le corps intérieur (1; 101; 201; 301; 401) comporte dans sa surface d'appui (14', 114', 2114', 314'; 414'), au moins par endroits, des microperforations (140; 141, 142; 143; 140'; 240; 350; 351; 352; 450; 451; 452; 453), qui déterminent un palier gazeux entre le corps intérieur (1; 101; 201; 301; 401) et le corps extérieur (3; 203; 303; 403). Les microperforations (140, 141, 142, 143; 140?; 240; 350, 351, 352, 353; 450, 451, 452, 453) débouchent dans une structure d'alimentation en gaz du corps intérieur (1; 101; 201; 301; 401). Ledit système se caractérise en ce que les microperforations (140, 41, 42, 143; 140', 240,; 350, 351, 352, 353,; 450, 451, 452, 453) sont pratiquées dans le corps intérieur (1; 101; 201; 301; 401) depuis la face de la surface d'appui (14', 114'; 214'; 314'; 414')
PCT/EP2005/010782 2004-10-07 2005-10-06 Systeme de corps pouvant etre deplaces les uns par rapport aux autres, conserve en atmosphere controlee WO2006040073A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT05795041T ATE463678T1 (de) 2004-10-07 2005-10-06 Gasgelagerte anordnung von relativ zueinander bewegbaren körpern
DE502005009376T DE502005009376D1 (de) 2004-10-07 2005-10-06 Gasgelagerte anordnung von relativ zueinander bewegbaren körpern
EP05795041A EP1797344B1 (fr) 2004-10-07 2005-10-06 Systeme de corps pouvant etre deplaces les uns par rapport aux autres, conserve en atmosphere controlee

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004048944.0 2004-10-07
DE102004048944A DE102004048944A1 (de) 2004-10-07 2004-10-07 Gasgelagerte Anordnung von relativ zueinander bewegbaren Körpern

Publications (2)

Publication Number Publication Date
WO2006040073A1 true WO2006040073A1 (fr) 2006-04-20
WO2006040073B1 WO2006040073B1 (fr) 2006-06-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/010782 WO2006040073A1 (fr) 2004-10-07 2005-10-06 Systeme de corps pouvant etre deplaces les uns par rapport aux autres, conserve en atmosphere controlee

Country Status (4)

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EP (1) EP1797344B1 (fr)
AT (1) ATE463678T1 (fr)
DE (2) DE102004048944A1 (fr)
WO (1) WO2006040073A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013102924B3 (de) * 2013-03-21 2014-04-24 AeroLas GmbH Aerostatische Lager- Lasertechnik Gasdrucklagerelement und Verfahren zur Herstellung eines Gasdrucklagerelements sowie Gasdrucklager mit einem solchen Gasdrucklagerelement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102003442B1 (ko) 2012-05-11 2019-07-24 에어로라스 게엠베하, 에어로슈타티쉐 라거- 레이저테크닉 피스톤-실린더 유닛

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1242702A (en) * 1967-12-06 1971-08-11 Babcock & Wilcox Co Improvements in boring apparatus
US3645589A (en) * 1970-12-03 1972-02-29 Gen Motors Corp Air bearing with low tensile strength permeable sleeve
US4744676A (en) * 1986-03-18 1988-05-17 Skf Nova Ab Gas bearing and method of making it
WO1992011194A1 (fr) * 1990-12-19 1992-07-09 Eastman Kodak Company Inverseurs et barres d'inversion sans contact et a trous inclines pour bande de materiau
EP0686781A2 (fr) * 1994-05-10 1995-12-13 GROSS, Heinz, Dr.-Ing. Rouleau pour le support, le renvoi ou le transport de matériaux

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1187384B (de) * 1956-05-16 1965-02-18 Philips Nv Einrichtung zur Messung von Winkeln durch Impulszaehlung
JPS62228713A (ja) * 1986-03-29 1987-10-07 Kyocera Corp エアベアリング
DE9421536U1 (de) * 1994-10-10 1996-02-22 Heinzl Joachim Aerostatisches Lager

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1242702A (en) * 1967-12-06 1971-08-11 Babcock & Wilcox Co Improvements in boring apparatus
US3645589A (en) * 1970-12-03 1972-02-29 Gen Motors Corp Air bearing with low tensile strength permeable sleeve
US4744676A (en) * 1986-03-18 1988-05-17 Skf Nova Ab Gas bearing and method of making it
WO1992011194A1 (fr) * 1990-12-19 1992-07-09 Eastman Kodak Company Inverseurs et barres d'inversion sans contact et a trous inclines pour bande de materiau
EP0686781A2 (fr) * 1994-05-10 1995-12-13 GROSS, Heinz, Dr.-Ing. Rouleau pour le support, le renvoi ou le transport de matériaux

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013102924B3 (de) * 2013-03-21 2014-04-24 AeroLas GmbH Aerostatische Lager- Lasertechnik Gasdrucklagerelement und Verfahren zur Herstellung eines Gasdrucklagerelements sowie Gasdrucklager mit einem solchen Gasdrucklagerelement
EP2781772A2 (fr) 2013-03-21 2014-09-24 AeroLas GmbH Aerostatische Lager · Lasertechnik Élément de palier pneumatique et procédé de fabrication d'un élément de palier pneumatique ainsi que palier pneumatique doté d'un tel élément de palier pneumatique

Also Published As

Publication number Publication date
DE502005009376D1 (de) 2010-05-20
EP1797344A1 (fr) 2007-06-20
ATE463678T1 (de) 2010-04-15
WO2006040073B1 (fr) 2006-06-22
EP1797344B1 (fr) 2010-04-07
DE102004048944A1 (de) 2006-04-20

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