WO2011024508A1 - Dispositif de rouleau chauffant à induction - Google Patents

Dispositif de rouleau chauffant à induction Download PDF

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Publication number
WO2011024508A1
WO2011024508A1 PCT/JP2010/056602 JP2010056602W WO2011024508A1 WO 2011024508 A1 WO2011024508 A1 WO 2011024508A1 JP 2010056602 W JP2010056602 W JP 2010056602W WO 2011024508 A1 WO2011024508 A1 WO 2011024508A1
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WO
WIPO (PCT)
Prior art keywords
roller body
rotating shaft
end side
magnetic bearing
magnetic
Prior art date
Application number
PCT/JP2010/056602
Other languages
English (en)
Japanese (ja)
Inventor
良夫 北野
幸三 岡本
孝次 北野
Original Assignee
トクデン株式会社
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 トクデン株式会社 filed Critical トクデン株式会社
Priority to JP2011528675A priority Critical patent/JP5779098B2/ja
Priority to CN201080029739.5A priority patent/CN102474922B/zh
Priority to DE112010002615T priority patent/DE112010002615T5/de
Publication of WO2011024508A1 publication Critical patent/WO2011024508A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14—Tools, e.g. nozzles, rollers, calenders
    • 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings

Definitions

  • the present invention relates to an induction heating roller device, and more particularly to a cantilever induction heating roller device.
  • a direct stretching process is performed in which molecular orientation is adjusted by heating and spinning in the length direction after spinning to improve properties such as tensile strength.
  • a plurality of induction heating roll devices are generally used to heat the synthetic fibers and to draw the synthetic fibers by the difference in rotational speed between the induction heating roll devices.
  • the induction heating roller device includes a roller body having a shaft fitting portion at the center of the bottom, and a magnetic flux generation mechanism including a cylindrical iron core and an induction coil arranged inside the roller body.
  • the roller body is supported in a cantilever manner by fitting and connecting the tip of the rotating shaft of the motor to the shaft fitting portion of the roller body, and the motor is directly rotated by the motor.
  • the roller main body generates heat by rotating the roller main body by the motor and exciting the induction coil of the magnetic flux generating mechanism by the AC power supply.
  • the induction heating roller device includes a cylindrical portion that extends into the hollow of the roller body and is integrally connected to the motor.
  • the cylindrical portion is extended inside the roller body so as to be along the axial direction of the roller body.
  • the magnetic flux generation mechanism is being fixed to the outer surface of this cylindrical part.
  • a rolling bearing is installed between the inner surface on the tip side of the cylindrical portion and the rotating shaft, and the rotating shaft is rotatably supported with respect to the cylindrical portion by this rolling bearing.
  • Patent Document 2 there is one in which the roller body is supported by a magnetic bearing, and this magnetic bearing is provided on the outer circumferential surface of the cylindrical portion, and the magnetic pole portion thereof faces the inner circumferential surface of the roller body. It is provided to do.
  • the magnetic bearings so-called radially outward, the opposing area between the magnetic pole part and the roller body (supported body) is made as large as possible to improve support stability.
  • the magnetic bearing is arranged on both sides in the axial direction of the magnetic flux generation mechanism, and the magnetic path of the magnetic flux generated by the magnetic flux generation mechanism is restricted by the magnetic bearing. is there. As a result, there is a problem that it is extremely difficult to control the temperature of the roller body uniformly without the magnetic flux passing through the entire roller body.
  • the magnetic path is extended in the axial direction by the guide member, and the magnetic flux is In some cases, the temperature of the roller body is made uniform by guiding it to the outside.
  • the configuration in which the guide member is provided inside the roller body is not a good idea because it limits the size of the roller body and the arrangement of other components such as magnetic bearings.
  • the magnetic bearing on the tip side is provided inward so that the magnetic pole portion faces the outer peripheral surface of the rotating shaft, but in order to ensure support stability, it is necessary to increase in the longitudinal direction, In this case, there is a problem in that it is difficult to ensure temperature uniformity of the roller body because the region through which the magnetic flux passes is further limited.
  • JP 2009-163968 A Japanese Patent No. 4106277 Japanese Patent No. 4212227
  • the present invention has been made to solve the above-mentioned problems all at once, and it is a main intended problem to improve the support stability by the magnetic bearing while ensuring the uniformity of the temperature of the roller body. It is what.
  • the induction heating roller device includes a bottomed cylindrical roller body having a jacket chamber in which a gas-liquid two-phase heat medium is enclosed and extended in the axial direction, and a rotation center axis of the roller body.
  • a rotating shaft provided at the center of the bottom of the roller body, and the rotating shaft is inserted into the interior of the roller body, and is disposed in a hollow between the roller body and the rotating shaft.
  • a support body provided with a magnetic flux generation mechanism comprising an induction coil wound around a cylindrical iron core, and a magnetic pole portion provided on the inner peripheral surface of the support body and facing the outer peripheral surface of the rotating shaft, And a radial magnetic bearing that supports the rotating shaft in a radial direction in a non-contact manner on the front end side and the rear end side.
  • the rotating shaft is supported by the magnetic bearing, there is no wear when using a rolling bearing, and the life of the bearing can be greatly extended.
  • the jacket body in which the gas-liquid two-phase heat medium is sealed is provided in the roller body, the temperature in the axial direction of the roller body can be made uniform. Further, since the jacket chamber is provided, the temperature can be made uniform even if the magnetic bearing is lengthened in the axial direction, so that the magnetic bearing can be enlarged in the axial direction, and the support stability of the rotating shaft is improved. Can be improved.
  • the magnetic bearing can be arranged without considering the arrangement relationship between the roller body and the magnetic bearing. Support stability can be further improved, such as disposing the end side magnetic bearing outside the roller body.
  • the radial magnetic bearing on the front end side is disposed inside the roller body, and the radial magnetic bearing on the rear end side is disposed outside the roller body. It is desirable that
  • the one that supports the rotating shaft with a magnetic bearing can rotate at a higher speed than the one that supports the rotating shaft with a rolling bearing. Therefore, when the roller body and the rotating shaft are taper fitted and connected by a fastening element, the roller body There is a problem that the backlash between the rotating shaft and the rotating shaft increases and the rigidity decreases. In order to solve this problem, it is desirable that the roller body and the rotating shaft are integrated.
  • the radial magnetic bearing on the front end side and the magnetic flux generation mechanism are provided so as not to overlap in the axial direction.
  • a cooling fluid passage through which a cooling fluid flows is formed in a portion of the support where the radial magnetic bearing is provided.
  • FIG. 3 is a cross-sectional view taken along line AA showing the magnetic bearing on the distal end side of the same embodiment. It is sectional drawing of the induction heating roller apparatus which concerns on deformation
  • the induction heat roller device 100 supports a roller body 2, a rotating shaft 3 provided at the center of the bottom of the roller body 2, and the rotating shaft 3 rotatably.
  • a support body 4 provided with a magnetic flux generation mechanism 5, and radial magnetic bearings 6 and 7 provided on the inner peripheral surface of the support body 4 to support the rotary shaft 3 in a non-contact manner in the radial direction on the front end side and the rear end side; It comprises.
  • a thrust magnetic bearing that supports the rotary shaft 3 in a thrust direction in a non-contact manner is disposed.
  • the roller body 2 has a bottomed cylindrical shape in which the rotation shaft 3 is integrally provided at the center of the bottom.
  • a plurality of jacket chambers 21A for enclosing a gas-liquid two-phase heat medium extending in the longitudinal direction (axial direction) are formed on the side peripheral wall 21 of the roller body 2 at equal intervals in the circumferential direction.
  • the inner end portion communicates with an annular hole provided in the circumferential direction of the side peripheral wall 21, and the jacket chambers 21A are continuous with each other.
  • the outer surface temperature of the roller body 2 is made uniform by the latent heat transfer of the gas-liquid two-phase heat medium sealed in the jacket chamber 21A.
  • the jacket chamber 21 ⁇ / b> A is provided over substantially the entire length in the axial direction on the side peripheral wall 21 of the roller body 2 beyond the position facing the magnetic flux generation mechanism 5. Further, a temperature sensor 10 for detecting the temperature of the outer surface is embedded in the distal end side of the side peripheral wall 21 of the roller body 2.
  • the rotation shaft 3 of the present embodiment is integrally formed with the roller body 2 and is provided at the center of the bottom of the roller body 2 so as to be along the rotation center axis C.
  • the rotor 81 of the drive motor 8 is detachably fixed to the rear end portion 301 of the rotary shaft 3 so as to be equally spaced in the circumferential direction.
  • the rear end portion 301 of the rotary shaft 3 has a tapered shape that decreases in diameter toward the rear end, and the inner peripheral surface of the rotor 81 has a tapered shape that is opposed to the taper of the rear end portion 301.
  • the rear end portion 301 and the rotor 81 are fastened and fixed by the fastening elements 9 such as bolts and nuts.
  • the fastening elements 9 such as bolts and nuts.
  • the support 4 has a rotary shaft 3 inserted therein, and a tip portion is disposed in a hollow between the roller body 2 and the rotary shaft 3, and the rotary shaft 3 is arranged at the front end side and the rear end side with a magnetic bearing 6. , 7 are rotatably supported.
  • a stator 82 of the drive motor 8 is provided on the inner peripheral surface of the support 4 that faces the rotor 81 of the rotating shaft 3.
  • the support 4 includes a support body 41 to which the magnetic bearing 6 on the front end side and the magnetic bearing 7 on the rear end side are attached, and a stator to which the stator 82 is fixed. And a fixing portion 42.
  • the support body 41 has a cylindrical portion 411 having an outer diameter smaller than the inner diameter of the roller body 2 and an outer diameter larger than the outer diameter of the cylindrical portion 411, and the roller body 2 at the proximal end portion of the cylindrical portion 411. And a flange portion 412 covering the opening.
  • a plurality of cooling fluid passages 4 ⁇ / b> A are formed in the side peripheral wall of the support body 41 so as to open at the outer peripheral surface of the flange portion 412 and extend to the tip portion of the cylindrical portion 411. And is opened at the outer peripheral surface of the flange portion 412.
  • a cooling fluid such as water or oil is supplied into the cooling fluid passage 4A, and the support 4 is cooled by circulation of the cooling fluid, and the magnetic flux generating mechanism 5 and the magnetic bearing 6 on the front end side are cooled by this cooling. To do.
  • the bearing temperature in the thermal steady state can be lowered, so that the bearing clearance and preload during assembly and steady state can be reduced.
  • a difference can be made small and it can suppress that unstable vibration generate
  • the magnetic flux generating mechanism 5 is provided on the support body 4 (specifically, the cylindrical portion 411) along the inner peripheral surface of the roller body 2, and the magnetic steel plates that are curved are arranged and laminated radially along the circumferential direction.
  • the cylindrical iron core 51 formed in this manner and the induction coil 52 wound around the outer peripheral surface of the cylindrical iron core 51 are cylindrical.
  • an alternating magnetic flux is generated when an AC voltage is applied to the induction coil 52, and the alternating magnetic flux passes through the cylindrical iron core 51 and the side peripheral wall 21 of the roller body 2. This passage generates a current in the roller body 2, and the roller body 2 generates Joule heat by the current.
  • the heat insulating material 11 is provided on the outer peripheral surface of the support body 4 facing the inner peripheral surface of the roller body 2, specifically, on the outer peripheral surface of the cylindrical portion 411 of the support body 4 and the magnetic flux generation mechanism 5.
  • the magnetic bearing 6 on the distal end side is provided on the inner peripheral surface of the support 4 and has magnetic pole portions 6a and 6b facing the outer peripheral surface of the rotating shaft 3, and supports the rotating shaft 3 in the radial direction on the distal end side in a non-contact manner. To do.
  • the magnetic bearing 6 on the front end side is provided on the front end side with respect to the magnetic flux generation mechanism 5 and is provided in the roller body 2.
  • Each magnetic bearing 6 includes a yoke 61 having a substantially U-shaped cross section in which magnetic pole portions 6 a and 6 b are formed at both ends, and a coil 62 wound around the magnetic pole portions 6 a and 6 b of the yoke 61.
  • An arcuate recess having substantially the same curvature as the outer peripheral surface of the rotating shaft 3 is formed at the tips of the magnetic pole portions 6 a and 6 b, and the leading end surface is disposed to face the outer peripheral surface of the rotating shaft 3.
  • the inner peripheral surface of the tip of the cylindrical portion 411 provided with the tip-side magnetic bearing 6 has an inner diameter so that the tips of the magnetic pole portions 6a and 6b of the tip-side magnetic bearing 6 are substantially flush with other inner peripheral surfaces. Largely formed.
  • the rear end side magnetic bearing 7 includes magnetic pole portions 7 a and 7 b provided on the inner peripheral surface of the support 4 and facing the outer peripheral surface of the rotary shaft 3, and the rotary shaft 3 is arranged in the radial direction on the rear end side.
  • Non-contact support The magnetic bearing 7 on the rear end side is provided on the rear end side with respect to the magnetic flux generation mechanism 5 and is provided outside the roller body 2.
  • the magnetic bearing 7 on the rear end side is provided on the inner peripheral surface of the support 4 and the magnetic pole portions 7 a and 7 b are opposed to the outer peripheral surface of the rotating shaft 3. This is because it is not provided so as to face the inner peripheral surface of the roller body 2.
  • the magnetic bearing 7 on the rear end side includes four magnetic bearings arranged at equal intervals in the circumferential direction on the inner peripheral surface of the support 4 (flange portion).
  • Each magnetic bearing like the magnetic bearing 6 on the front end side, is wound around a yoke 71 having a substantially U-shaped cross section in which magnetic pole portions 7a and 7b are formed at both ends, and the magnetic pole portions 7a and 7b of the yoke 71.
  • Coil 72
  • a touchdown bearing 12 such as a slide bearing is provided.
  • the rotating shaft 3 is supported by the magnetic bearings 6 and 7, so there is no wear when using a rolling bearing and the like.
  • the service life can be greatly extended.
  • the jacket body 21A in which the gas-liquid two-phase heat medium is sealed is provided in the roller body 2, the temperature in the axial direction of the roller body 2 can be made uniform.
  • the jacket chamber 21A is provided, the temperature can be made uniform even if the magnetic bearings 6 and 7 are lengthened in the axial direction, so that the magnetic bearings 6 and 7 can be enlarged in the axial direction, Support stability of the rotating shaft 3 and the roller body 2 can be improved.
  • the magnetic bearings 6, 7 are considered without considering the positional relationship between the roller body 2 and the magnetic bearings 6, 7.
  • the distance between the magnetic bearing 7 on the front end side and the magnetic bearing 7 on the rear end side can be increased such that the magnetic bearing 7 on the rear end side is arranged outside the roller body 2, and further support stability can be achieved. Can be improved.
  • the support 4 has one magnetic flux generation mechanism 5 in the axial direction, and the magnetic flux generation mechanism 5 is sandwiched between the magnetic bearing 6 on the front end side and the magnetic bearing 7 on the rear end side.
  • the support 4 may have two magnetic flux generation mechanisms 5 in the axial direction, and the magnetic bearing 6 on the front end side may be disposed between the magnetic flux generation mechanisms 5. .
  • the number of magnetic flux generation mechanisms 5 is not limited to two, and three or more may be provided in the axial direction.
  • the two-point magnetic bearing is arranged in the axial direction by the magnetic bearing 6 on the front end side and the magnetic bearing 7 on the rear end side. good.
  • the magnetic bearing 7 on the rear end side of the embodiment is disposed outside the roller body 2 at the front end side with respect to the drive motor 8, that is, disposed between the roller body 2 and the drive motor 8.
  • the rear end side of the drive motor 8, specifically, the drive motor 8 and the temperature detection device (rotary transformer) RTS may be arranged. .
  • roller body 2 and the rotation shaft 3 are integrated so that the roller body 2 and the rotation shaft 3 do not rattle due to rotation. May be connected by a fastening element using taper fitting or the like.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rolling Contact Bearings (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • General Induction Heating (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

L’invention concerne un dispositif de rouleau chauffant à induction. La stabilité de support assurée par l’intermédiaire de paliers magnétiques est améliorée, tout en garantissant toujours l’uniformité de température d’un corps de rouleau. Le dispositif de rouleau chauffant à induction divulgué est pourvu : d’un corps de rouleau (2) ; d’un arbre rotatif (3) disposé au milieu d’une section de base du corps de rouleau (2) ; d’un support (4), disposé dans une cavité entre le corps de rouleau (2) et l’arbre rotatif (3), à l’intérieur duquel l’arbre rotatif (3) est inséré et sur lequel un mécanisme de génération de flux magnétique (5) est disposé ; et de paliers magnétiques radiaux (6, 7) qui supportent radialement l’arbre rotatif (3) depuis son extrémité avant et son extrémité arrière sans faire de contact et qui comportent des sections de pôle magnétique, qui sont disposées sur la surface interne du support (4) et font face à la surface externe de l’arbre rotatif (3).
PCT/JP2010/056602 2009-08-27 2010-04-13 Dispositif de rouleau chauffant à induction WO2011024508A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2011528675A JP5779098B2 (ja) 2009-08-27 2010-04-13 誘導発熱ローラ装置
CN201080029739.5A CN102474922B (zh) 2009-08-27 2010-04-13 感应发热辊装置
DE112010002615T DE112010002615T5 (de) 2009-08-27 2010-04-13 Induktionsheizwalzenvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-197212 2009-08-27
JP2009197212 2009-08-27

Publications (1)

Publication Number Publication Date
WO2011024508A1 true WO2011024508A1 (fr) 2011-03-03

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ID=43627622

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Application Number Title Priority Date Filing Date
PCT/JP2010/056602 WO2011024508A1 (fr) 2009-08-27 2010-04-13 Dispositif de rouleau chauffant à induction

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JP (1) JP5779098B2 (fr)
CN (1) CN102474922B (fr)
DE (1) DE112010002615T5 (fr)
WO (1) WO2011024508A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103108424A (zh) * 2011-11-09 2013-05-15 特电株式会社 感应发热辊装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6909659B2 (ja) * 2016-08-25 2021-07-28 Ｔｍｔマシナリー株式会社 誘導加熱ローラ
CN106369066A (zh) * 2016-11-21 2017-02-01 南京磁谷科技有限公司 一种磁轴承冷却结构
JP7159709B2 (ja) * 2018-09-05 2022-10-25 日立金属株式会社 マグネットロールの製造装置及び該製造装置に使用される金型

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002527022A (ja) * 1998-09-25 2002-08-20 デー イ− エ− エヌ エ− エス アパラーテバウゲゼルシャフト ミット ベシュレンクテル ハフツング 一体型のゴデットユニット
JP2002317340A (ja) * 2001-02-01 2002-10-31 Neumag Gmbh & Co Kg 糸を案内し、加熱しかつ搬送するためのゴデット
JP2007321792A (ja) * 2006-05-30 2007-12-13 Tokuden Co Ltd 誘導発熱ローラ装置
JP2009163968A (ja) * 2008-01-07 2009-07-23 Tokuden Co Ltd 片持ち式誘導発熱ローラ装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1013181B (zh) * 1985-07-03 1991-07-17 川上产业株式会社 用热塑材料生产带泡薄膜的设备
DE4009385A1 (de) 1990-03-23 1991-09-26 Porsche Ag Kraftfahrzeug, insbesondere personenwagen mit einer im heckbereich angeordneten luftleitvorrichtung
JP2501655B2 (ja) 1990-08-23 1996-05-29 株式会社巴コーポレーション 建物の出入り口
CN100359066C (zh) * 2001-05-21 2008-01-02 苏拉有限及两合公司 导纱辊

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002527022A (ja) * 1998-09-25 2002-08-20 デー イ− エ− エヌ エ− エス アパラーテバウゲゼルシャフト ミット ベシュレンクテル ハフツング 一体型のゴデットユニット
JP2002317340A (ja) * 2001-02-01 2002-10-31 Neumag Gmbh & Co Kg 糸を案内し、加熱しかつ搬送するためのゴデット
JP2007321792A (ja) * 2006-05-30 2007-12-13 Tokuden Co Ltd 誘導発熱ローラ装置
JP2009163968A (ja) * 2008-01-07 2009-07-23 Tokuden Co Ltd 片持ち式誘導発熱ローラ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103108424A (zh) * 2011-11-09 2013-05-15 特电株式会社 感应发热辊装置

Also Published As

Publication number Publication date
CN102474922B (zh) 2014-07-30
JP5779098B2 (ja) 2015-09-16
DE112010002615T5 (de) 2012-08-23
CN102474922A (zh) 2012-05-23
JPWO2011024508A1 (ja) 2013-01-24

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