WO2011145302A1 - シール用回転出力ユニットおよびシール用モータアセンブリ - Google Patents
シール用回転出力ユニットおよびシール用モータアセンブリ Download PDFInfo
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- WO2011145302A1 WO2011145302A1 PCT/JP2011/002654 JP2011002654W WO2011145302A1 WO 2011145302 A1 WO2011145302 A1 WO 2011145302A1 JP 2011002654 W JP2011002654 W JP 2011002654W WO 2011145302 A1 WO2011145302 A1 WO 2011145302A1
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- Prior art keywords
- shaft
- motor
- sealing
- case
- fixed
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at only one end of the rotor
Definitions
- the present invention relates to a rotary output unit for sealing used for introducing the rotational output of a motor such as an AC servo motor disposed in the atmosphere into a compartment chamber sealed from the atmosphere side such as a vacuum chamber or a clean room, and the seal.
- the present invention relates to a seal motor assembly on which a rotary output unit is mounted.
- Non-Patent Document 1 discloses a magnetic fluid seal and a magnetic seal unit having a configuration in which a magnetic fluid seal is incorporated in an AC servo motor. Such a built-in magnetic seal unit needs to be redesigned by changing the specifications of the flange of an existing AC servo motor.
- Non-Patent Document 2 When an existing AC servo motor is used as it is, for example, when a hollow existing AC servo motor described in Non-Patent Document 2 is used as it is, via a joint sealed with a magnetic fluid seal. It is necessary to connect the rotary member on the vacuum side and the motor shaft on the atmosphere side. However, in this case, the rotational position of the rotary output shaft cannot be controlled with high accuracy due to twisting or slipping of the joint.
- the problem of the present invention is to provide a rotation output unit for sealing suitable for use in connection with a motor, particularly a hollow motor, and the rotation output unit for sealing connected and fixed to the hollow motor.
- Another object of the present invention is to propose a sealing motor assembly having the above structure.
- the rotational output unit for sealing of the present invention is: A cylindrical unit case, A cylindrical shaft arranged coaxially inside the unit case; Between the inner peripheral surface of the unit case and the outer peripheral surface of the cylindrical shaft, the unit case and the cylindrical shaft are disposed at positions separated in the axial direction, and the unit case and the cylindrical shaft are held in a relatively rotatable state.
- a first bearing and a second bearing The unit case is disposed in a cylindrical space surrounded by the inner peripheral surface of the unit case, the first bearing, the second bearing, and the outer peripheral surface of the cylindrical shaft, and maintains an airtight state between the unit case and the cylindrical shaft.
- a magnetic fluid seal A rotary output shaft extending coaxially through the hollow portion of the cylindrical shaft; And an elastic seal member that holds the space between the outer peripheral surface of the rotary output shaft and the inner peripheral surface of the cylindrical shaft in an airtight state.
- one shaft end of the rotary output shaft is disposed so as to protrude into the vacuum side, for example, and the opposite shaft end is fastened and fixed to, for example, a motor shaft disposed on the atmosphere side Is done.
- the rotation output shaft extends through the inside of the cylindrical shaft, and the space between them is held in an airtight state by an elastic seal member.
- the cylindrical shaft is rotatably supported by the unit case via first and second bearings, and the space between the cylindrical shaft and the unit case is held in an airtight state by a magnetic fluid seal.
- Rotation output shaft can be fastened and fixed directly to the motor shaft. Therefore, unlike the case where the rotation output shaft is connected to the motor shaft via a joint or the like, the rotation positioning accuracy of the rotation output shaft can be ensured. Even if the runout occurs on the rotation output shaft directly connected to the motor shaft, the runout of the rotation output shaft is absorbed by the elastic deformation of the elastic seal member that seals between the rotation output shaft and the cylindrical shaft. The Therefore, excessive stress acts on the bearing side of the motor shaft or on the first and second bearing sides supporting the cylindrical shaft through which the rotation output shaft passes, and these bearing portions are excessive. There will be no adverse effects such as wear and shortened life.
- the cylindrical shaft is supported by the first and second bearings in a rotatable state, the cylindrical shaft rotates together with the rotation output shaft, and the elastic seal member sealing between these also has the cylindrical shaft and the rotation output. Rotates with the shaft. Therefore, the elastic seal member does not wear due to sliding friction, so that the sealing state by the elastic seal member is ensured and the life of the elastic seal member can be prevented from being reduced by the sliding wear.
- an O-ring can be used as the elastic seal member.
- the rotary output unit for sealing of the present invention includes a disk-shaped tip flange fastened and fixed to the tip portion of the unit case in the axial direction, and the unit case and the tip flange.
- a seal member between the joint surfaces that holds the joint surfaces in an airtight state, and the tip flange includes a flange shaft hole through which the shaft tip of the rotary output shaft extends. It is characterized by.
- the flange shaft hole is positioned in the shaft hole formed in the partition wall that partitions the vacuum chamber from the atmosphere side, and in this state, on the side surface on the atmosphere side of the partition wall, The end flange of the unit case is attached.
- the space between the vacuum side and the atmosphere side is reliably sealed by the elastic seal member, the magnetic fluid seal, and the seal between the joint surfaces.
- the rotary output unit for sealing of the present invention has a rear end flange that is fastened and fixed coaxially to the rear end portion of the rotary output shaft, and the rotary output shaft and the rear
- the fastening and fixing position of the end flange can be shifted by a predetermined amount in a direction orthogonal to the axial direction.
- the rotational output shaft is finely adjusted in the direction perpendicular to the axial direction. Can be connected to the motor shaft without any misalignment, and the rotation of the rotation output shaft can be reliably prevented.
- the sealing motor assembly of the present invention includes: A hollow motor having a hollow portion extending through in the axial direction in the center;
- the sealing rotary output unit having the above-described configuration arranged coaxially in the hollow portion,
- the unit case of the rotary output unit for sealing is fastened and fixed to the motor case of the hollow motor,
- the rotary output shaft of the rotary output unit for sealing is characterized in that it is fastened and fixed coaxially to a hollow motor shaft that is rotatably supported by a motor case of the hollow motor.
- a sealing motor assembly can be constructed without causing an increase in dimensions.
- the rotation output shaft is directly connected to the hollow motor shaft, unlike the case where the rotation output shaft is connected via a joint, it is possible to prevent a decrease in the rotational positioning accuracy of the rotation output shaft.
- the rotary output unit for sealing is in an airtight state between a disk-shaped front end flange fastened and fixed to the front end of the unit case in the axial direction, and a joint surface between the unit case and the front end flange
- the front end flange includes a flange shaft hole through which the shaft front end portion of the rotary output shaft extends.
- the tip flange is fastened and fixed to the motor case of the hollow motor.
- the rotation output unit for sealing has a rear end flange that is fastened and fixed coaxially to the shaft rear end of the rotation output shaft, and the fastening and fixing position of the rotation output shaft and the rear end flange is There may be a case where a predetermined amount can be changed in a direction perpendicular to the axis. In this case, the rear end flange is fastened and fixed coaxially to the hollow motor shaft of the hollow motor.
- the motor case of the hollow motor includes a fixed motor case located on the front end side in the axial direction and a rotation motor case located on the rear end side, and the rotation motor case is the hollow motor shaft.
- the hollow motor shaft is supported in a rotatable state by the fixed motor case.
- the front end flange of the seal rotation output unit is fastened and fixed to the stationary motor case
- the rear end flange of the seal rotation output unit is fastened and fixed to the rotation motor case.
- this invention it arrange
- a rotational output unit for sealing with high rotational accuracy that can be directly connected to a motor, for example, an existing motor without using a joint. Further, by arranging the rotation output unit for sealing provided with a magnetic fluid seal using the hollow portion of the hollow motor, a sealing motor assembly with high rotation accuracy can be realized without increasing the size.
- the sealing motor assembly 1 includes a hollow motor 2 and a sealing rotation output unit 3.
- a hollow portion 5 extending in the direction of the motor axis 4 extends through the central portion of the hollow motor 2, and the sealing rotary output unit 3 is mounted coaxially there.
- the hollow motor 2 is composed of a fixed portion 6 on the front end side and a rotating portion 7 on the rear end side.
- the fixed portion 6 has a configuration in which a cylindrical fixed motor case 6a, a cylindrical encoder cover 6b, and a disk-shaped mounting flange 6c are coaxially assembled from the rear end side.
- the rotating unit 7 includes a fixed motor 6 and a hollow motor shaft 9 extending along the center of the rotating unit 7.
- a disc-shaped rear end side end plate 7a that extends outward in the radial direction is integrally formed at the rear end portion of the hollow motor shaft 9.
- a cylindrical rotation-side motor case 7b extending to the front end side is integrally formed on the outer peripheral edge portion of the rear end side end plate 7a.
- the stationary motor case 6a and the rotating motor case 7b constitute a motor case of the hollow motor 2.
- a stator portion (not shown) including a stator core fixed inside the fixed side motor case 6a and a drive coil wound around the stator core is arranged.
- the stator portion is opposed to a rotor magnet 7c that is coaxially fixed to the outer periphery of the hollow motor shaft 9 through a certain gap.
- the fixed portion 6 and the rotating portion 7 are held in a relatively rotatable state by a cross roller bearing 8 disposed between them.
- An encoder unit 10 is incorporated in the outer peripheral portion of the hollow motor shaft 9 covered by the encoder cover 6b, and the rotational position of the hollow motor shaft 9 can be detected.
- the seal rotation output unit 3 includes a cylindrical unit case 11.
- the unit case 11 is integrally formed with an annular front end plate 11a extending radially outward and inward at the distal end of the unit case 11, and a circle extending inward in the radial direction at the rear end of the unit case 11.
- An annular rear end side end plate 11b is integrally formed.
- a cylindrical shaft 12 is coaxially arranged inside the unit case 11 of this shape, and the shaft tip portion 12a of the cylindrical shaft 12 slightly protrudes from the tip end plate 11a toward the tip side, and the shaft tip portion.
- a minute annular gap is formed between the outer peripheral surface portion of 12a and the circular inner peripheral surface of the front end side end plate 11a.
- the shaft rear end portion 12b of the cylindrical shaft 12 slightly protrudes from the rear end side end plate 11b to the rear end side, and the outer peripheral surface portion of the shaft rear end portion 12b and the circular inner periphery of the rear end side end plate 11b.
- a minute annular gap is formed between the surfaces.
- a front end side bearing 15 and a rear end side bearing 16 are respectively incorporated in the rear side position of the front end side end plate 11a and the front side position of the rear end side end plate 11b.
- the cylindrical shaft 12 is supported on the circular inner peripheral surface 11 c of the unit case 11 in a freely rotatable state via 15 and 16.
- a magnetic fluid seal 13 is mounted in a cylindrical space surrounded by the circular inner peripheral surface 11c of the unit case 11, the bearings 15 and 16, and the circular outer peripheral surface 12c of the cylindrical shaft 12.
- permanent magnet rings and magnetic rings are alternately stacked in the axial direction of the cylindrical shaft, and between the inner peripheral surface of each magnetic ring and the circular outer peripheral surface 12c of the cylindrical shaft 12 made of a magnetic material, The magnetic fluid is held by the magnetic force. Since the structure of the magnetic fluid seal 13 is known, the illustration thereof is omitted.
- the magnetic fluid seal 13 holds the cylindrical shaft 12 and the unit case 11 in an airtight state.
- Rotating output shaft 14 extends through the hollow portion of cylindrical shaft 12 in a coaxial state.
- a minute annular gap is formed between the circular inner peripheral surface 12 d of the cylindrical shaft 12 and the circular outer peripheral surface 14 c of the rotation output shaft 14.
- an annular groove having a rectangular cross section is formed at a position facing the front end side bearing 15 and a position facing the rear end side bearing 16, respectively.
- O-rings 17 and 18 are mounted as elastic seal members in the annular groove. The O-rings 17 and 18 are elastically deformed and crushed, and hold the space between the circular inner peripheral surface 12d of the cylindrical shaft 12 and the circular outer peripheral surface 14c of the rotary output shaft 14 in an airtight state.
- an elastically deformable resin or rubber seal ring may be used in place of the O-rings 17 and 18.
- a disc-shaped tip flange 21 is fastened and fixed in a coaxial state by a fastening bolt 22 on the tip end surface 11e of the tip end plate 11a of the unit case 11.
- the flange shaft hole 21a formed at the center of the front end flange 21 has a small-diameter opening at the front end and a large-diameter opening at the rear end, and the front end of the unit case 11 from the rear side into the large-diameter opening.
- a plate 11 a is mounted and fastened and fixed by fastening bolts 22.
- a space between the annular step surface 21b of the flange shaft hole 21a and the end surface 11e on the distal end side end plate 11a in contact therewith is held in an airtight state by an O-ring 23.
- the shaft tip portion 14a of the rotary output shaft 14 protrudes toward the tip side through the flange shaft hole 21a of the tip flange 21.
- a disc-shaped rear end flange 24 is fastened and fixed to the rear end portion 14b of the rotary output shaft 14 by a fastening bolt 25 in a coaxial state.
- a disk-shaped boss 14d having a large diameter is formed at the shaft rear end portion 14b of the rotation output shaft 14, and a columnar convex portion 14f projects rearward from the center of the rear end surface 14e of the boss 14d.
- the rear end flange 24 includes a large-diameter disk portion 24a and a columnar boss 24b protruding from the center of the end surface on the front end side of the disk portion 24a to the front end side.
- the boss 24b has the same diameter as the boss 14d, and a circular recess 24d is formed at the center of the tip surface 24c.
- the rear end surface 14e of the boss 14d of the rotation output shaft 14 and the front end surface 24c of the boss 24b of the rear end flange 24 are positioning mating surfaces for connecting the rotation output shaft 14 and the rear end flange 24. Further, the inner diameter of the circular recess 24d is slightly larger than the outer diameter of the boss 14d, and there is play between them, and the rotation output shaft 14 and the rear end flange 24 are relatively slightly in the direction perpendicular to the axis. Can be moved to.
- the front end flange 21 of the rotary output unit 3 for sealing is fastened and fixed from the rear side to the mounting flange 6c of the fixing portion 6 of the hollow motor 2 by a fastening bolt 26.
- the disk portion 24 a of the rear end flange 24 is fastened and fixed to the rear end portion of the hollow motor shaft 9 of the hollow motor 2 by a fastening bolt 27.
- the front end surface 21c of the front end flange 21 is fastened and fixed to the atmosphere side surface 32 of the partition wall 31 with the atmosphere side in the vacuum chamber 30 by a fastening bolt (not shown).
- An elastic seal member for example, an O-ring 33 is mounted between the atmosphere side surface 32 of the partition wall 31 and the front end surface 21c of the front end flange 21, and the space between them is kept airtight.
- the shaft tip portion 14 a of the rotation output shaft 14 is in a state of protruding to the vacuum chamber side through the shaft hole 35 of the partition wall 31. In this state, the vacuum side and the atmosphere side are sealed by the O-ring 33, the O-ring 23 of the sealing rotary output unit 3, the magnetic fluid seal 13, and the O-rings 17 and 18. .
- a magnetic fluid seal 13 is used to seal between the fixed-side unit case 11 and the rotating-side cylindrical shaft 12. Since the non-contact type magnetic fluid seal 13 is used, the frictional force accompanying the rotation of the rotary output shaft 14 by the hollow motor 2 can be reduced. Further, a portion other than the front end flange 21 and the rear end flange 24 in the rotary output unit 3 for sealing, that is, a portion where the magnetic fluid seal 13 is formed is disposed in the hollow portion 5 of the hollow motor 2. Therefore, the rotational output unit 3 for sealing can be attached without significantly increasing the axial length and outer diameter of the existing hollow motor 2. Therefore, the compact and compact motor assembly 1 for sealing can be realized.
- the rotary output shaft 14 is fastened and fixed to the hollow motor shaft 9 without a joint, twisting and slipping do not occur between both members. Therefore, the rotation positioning accuracy of the rotation output shaft 14 can be ensured.
- annular gap between the cylindrical shaft 12 that is the rotation axis of the magnetic fluid seal 13 and the inner rotation output shaft 14, and O-rings 17, 18 in which the annular gap is arranged at the front and rear. Is sealed by. Since the cylindrical shaft 12 and the rotation output shaft 14 are rotated together, the O-rings 17 and 18 between them are not subjected to sliding wear, and a reliable sealing state is maintained.
- the rotation output shaft 14 and the hollow motor shaft 9 are connected and fixed via a rear end flange 24.
- the rotary output shaft 14 and the rear end flange 24 are assembled at right angles with high accuracy by the mutual mating surfaces (14e, 24c) formed with high accuracy. Further, since the rear end flange 24 is slightly movable in the direction perpendicular to the axis with respect to the rotation output shaft 14, the rotation output shaft 14 is misaligned with respect to the hollow motor shaft 9 via the rear end flange 24. It can be connected and fixed in the absence.
- the motor case is composed of the fixed motor case 6a and the rotary motor case 7b.
- the hollow motor shaft can be rotated coaxially in a single cylindrical motor case. It is also possible to use a hollow motor having a general configuration arranged in a state.
- the unit case 11 may be directly or indirectly connected and fixed to the fixed motor case, and the rotation output shaft 14 may be directly or indirectly connected and fixed to the hollow motor shaft.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Gasket Seals (AREA)
Abstract
Description
筒状のユニットケースと、
前記ユニットケースの内側に同軸状態に配置されている円筒軸と、
前記ユニットケースの内周面および前記円筒軸の外周面の間において、これらユニットケースおよび円筒軸の軸線方向に離れた位置に配置され、これらユニットケースおよび円筒軸を相対回転自在の状態に保持している第1軸受および第2軸受と、
前記ユニットケースの内周面、前記第1軸受、前記第2軸受および前記円筒軸の外周面によって囲まれた円筒状空間に配置され、前記ユニットケースおよび前記円筒軸の間を気密状態に保持している磁性流体シールと、
前記円筒軸の中空部を同軸状態に貫通して延びている回転出力軸と、
前記回転出力軸の外周面および前記円筒軸の内周面の間を気密状態に保持している弾性シール部材とを有していることを特徴としている。
中心に軸線方向に中空部が貫通して延びている中空モータと、
前記中空部に同軸状態に配置された上記構成のシール用回転出力ユニットとを有し、
前記シール用回転出力ユニットの前記ユニットケースは、前記中空モータの前記モータケースに締結固定されており、
前記シール用回転出力ユニットの前記回転出力軸は、前記中空モータのモータケースによって回転自在の状態で支持されている中空モータ軸に、同軸状態に締結固定されていることを特徴としている。
次に、シール用回転出力ユニット3は円筒状のユニットケース11を備えている。ユニットケース11の先端部には半径方向の外方および内側に広がっている円環状の先端側端板11aが一体形成されており、ユニットケース11の後端部には半径方向の内側に延びる円環状の後端側端板11bが一体形成されている。
Claims (9)
- 筒状のユニットケース(11)と、
前記ユニットケース(11)の内側に同軸状態に配置されている円筒軸(12)と、
前記ユニットケース(11)の内周面(11c)および前記円筒軸(12)の外周面(12c)の間において、これらの軸線方向に離れた位置に配置され、これらを相対回転自在の状態に保持している第1軸受(15)および第2軸受(16)と、
前記ユニットケース(11)の内周面(11c)、前記第1軸受(15)、前記第2軸受(16)および前記円筒軸(12)の外周面(12c)によって囲まれた円筒状空間に配置され、前記ユニットケース(11)および前記円筒軸(12)の間を気密状態に保持している磁性流体シール(13)と、
前記円筒軸(12)の中空部を同軸状態に貫通して延びている回転出力軸(14)と、
前記回転出力軸(14)の外周面(14c)および前記円筒軸(12)の内周面(12d)の間を気密状態に保持している弾性シール部材(17、18)とを有していることを特徴とするシール用回転出力ユニット(3)。 - 請求項1において、
前記弾性シール部材はOリング(17、18)であることを特徴とするシール用回転出力ユニット(3)。 - 請求項1において、
前記ユニットケース(11)における前記軸線方向の先端部に締結固定された円盤状の先端フランジ(21)と、
前記ユニットケース(11)および前記先端フランジ(21)の相互の接合面(11e、21b)の間を気密状態に保持している接合面間シール部材(23)とを有し、
前記先端フランジ(21)は、前記回転出力軸(14)の軸先端部(14a)が貫通して延びているフランジ軸穴(21a)を備えていることを特徴とするシール用回転出力ユニット(3)。 - 請求項1ないし3のうちのいずれかの項において、
前記回転出力軸(14)の軸後端部(14b)に同軸状態に締結固定される後端フランジ(24)を有し、
前記回転出力軸(14)と前記後端フランジ(24)の締結固定位置は、前記軸線に直交する方向に所定量だけ変更可能となっていることを特徴とするシール用回転出力ユニット(3)。 - 中心に軸線(4)方向に中空部(5)が貫通して延びている中空モータ(2)と、
前記中空部(5)に同軸状態に配置された請求項1に記載のシール用回転出力ユニット(3)とを有し、
前記シール用回転出力ユニット(3)の前記ユニットケース(11)は、前記中空モータ(2)のモータケースに締結固定されており、
前記シール用回転出力ユニット(3)の前記回転出力軸(14)は、前記中空モータ(2)の前記モータケースによって回転自在の状態で支持されている中空モータ軸(9)に、同軸状態に締結固定されていることを特徴とするシール用モータアセンブリ(1)。 - 請求項5において、
前記シール用回転出力ユニット(3)は、
前記ユニットケース(11)における前記軸線方向の先端部に締結固定された円盤状の先端フランジ(21)と、
前記ユニットケース(11)および前記先端フランジ(21)の相互の接合面(11e、21b)の間を気密状態に保持している接合面間シール部材(23)とを有し、
前記先端フランジ(21)は、前記回転出力軸(14)の軸先端部(14a)が貫通して延びているフランジ軸穴(21a)を備えており、
前記先端フランジ(21)は、前記中空モータ(2)のモータケースに締結固定されていることを特徴とするシール用モータアセンブリ(1)。 - 請求項6において、
前記シール用回転出力ユニット(3)は、前記回転出力軸(14)の軸後端部(14b)に同軸状態に締結固定される後端フランジ(24)を有し、前記回転出力軸(14)と前記後端フランジ(24)の締結固定位置は、前記軸線に直交する方向に所定量だけ変更可能となっており、
前記後端フランジ(24)は、前記中空モータ(2)の前記中空モータ軸(9)に、同軸状態に締結固定されていることを特徴とするシール用モータアセンブリ(1)。 - 請求項7において、
前記中空モータ(2)の前記モータケースは、その軸線方向における先端側に位置する固定側モータケース(6a)と、その後端側に位置する回転側モータケース(7b)とを備え、当該回転側モータケース(7b)は前記中空モータ軸(9)に一体形成あるいは連結固定されており、
前記固定側モータケース(6a)によって前記中空モータ軸(9)は回転自在の状態で支持されており、
前記シール用回転出力ユニット(3)の前記先端フランジ(21)は前記固定側モータケース(6a)に締結固定されており、
前記シール用回転出力ユニット(3)の前記後端フランジ(24)は前記回転側モータケース(7b)に締結固定されていることを特徴とするシール用モータアセンブリ(1)。 - 請求項5ないし8のうちのいずれかの項において、
前記シール用回転出力ユニット(3)の前記弾性シール部材はOリング(17、18)であることを特徴とするシール用モータアセンブリ(1)。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020127028957A KR101748176B1 (ko) | 2010-05-21 | 2011-05-12 | 씰용 회전출력유닛 및 씰용 모터 어셈블리 |
| CA2799379A CA2799379A1 (en) | 2010-05-21 | 2011-05-12 | Sealed rotational output unit and sealed motor assembly |
| DE112011101735.9T DE112011101735B4 (de) | 2010-05-21 | 2011-05-12 | Abgedichtete Rotationsausgabeeinheit und abgedichtete Motoranordnung |
| JP2012515739A JP5718327B2 (ja) | 2010-05-21 | 2011-05-12 | シール用回転出力ユニットおよびシール用モータアセンブリ |
| US13/698,096 US9000643B2 (en) | 2010-05-21 | 2011-05-12 | Sealed rotational output unit and sealed motor assembly |
| CN201180025067.5A CN102906473B (zh) | 2010-05-21 | 2011-05-12 | 密封用旋转输出单元及密封用电动机组装件 |
| TW100117802A TWI573945B (zh) | 2010-05-21 | 2011-05-20 | A rotary output unit for sealing, and a motor unit for sealing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010117740 | 2010-05-21 | ||
| JP2010-117740 | 2010-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011145302A1 true WO2011145302A1 (ja) | 2011-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2011/002654 Ceased WO2011145302A1 (ja) | 2010-05-21 | 2011-05-12 | シール用回転出力ユニットおよびシール用モータアセンブリ |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9000643B2 (ja) |
| JP (1) | JP5718327B2 (ja) |
| KR (1) | KR101748176B1 (ja) |
| CN (1) | CN102906473B (ja) |
| CA (1) | CA2799379A1 (ja) |
| DE (1) | DE112011101735B4 (ja) |
| TW (1) | TWI573945B (ja) |
| WO (1) | WO2011145302A1 (ja) |
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|---|---|---|---|---|
| US10250097B2 (en) * | 2015-04-17 | 2019-04-02 | Harmonic Drive Systems Inc. | Static pressure seal-equipped motor |
| US11168769B2 (en) | 2018-09-14 | 2021-11-09 | Lippert Components Manufacturing, Inc. | Drive mechanism for telescopic linear actuator |
| US11649636B2 (en) | 2018-10-09 | 2023-05-16 | Taylor Made Group, Llc | Tubular motor seal for extendable awning |
| CN114688257B (zh) * | 2020-12-25 | 2026-04-21 | 沈阳耐蚀合金泵股份有限公司 | 一种磁流体密封的轴组件、屏蔽电机和屏蔽泵 |
| CN112542913A (zh) * | 2020-12-30 | 2021-03-23 | 汕头市嘉信包装材料有限公司 | 一种真空室动力轴的驱动密封机构 |
| CN112803663B (zh) * | 2021-03-03 | 2021-11-23 | 郑州轻工业大学 | 隔爆重型振动电机 |
| CN115995935B (zh) * | 2023-02-16 | 2025-07-18 | 中国科学院高能物理研究所 | 一种快速扫描x射线吸收精细结构谱学单色器高精度转轴系统 |
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| JPH074964U (ja) * | 1993-06-18 | 1995-01-24 | 日本精工株式会社 | 密封装置 |
| JP2002026105A (ja) * | 2000-07-05 | 2002-01-25 | Daikin Ind Ltd | 真空搬送モジュール |
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| US3620584A (en) * | 1970-05-25 | 1971-11-16 | Ferrofluidics Corp | Magnetic fluid seals |
| JPS61160670A (ja) * | 1984-12-29 | 1986-07-21 | Nippon Fueroo Furuideikusu Kk | 磁性流体シ−ル装置 |
| US4995622A (en) * | 1989-02-07 | 1991-02-26 | Nippon Pillar Packing Co., Ltd. | Magnetic fluid seal device |
| JP3740770B2 (ja) * | 1995-12-28 | 2006-02-01 | 日本精工株式会社 | 密閉型アクチュエ−タ |
| JPH11166597A (ja) * | 1997-12-02 | 1999-06-22 | Harmonic Drive Syst Ind Co Ltd | 回転導入機 |
| TWI268036B (en) * | 2003-08-04 | 2006-12-01 | Harmonic Drive Systems | Flat hollow type brushless servo motor |
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| DE112009000465T5 (de) * | 2008-02-29 | 2011-02-24 | Thk Co., Ltd. | Drehtischvorrichtung, die mit einer Kühlstruktur versehen ist, und Drehlager, das mit einer Kühlstruktur versehen ist |
| JP5024965B2 (ja) | 2008-09-09 | 2012-09-12 | 株式会社リガク | 磁性流体シール装置 |
| CN102216658A (zh) * | 2009-09-24 | 2011-10-12 | 伊格尔工业股份有限公司 | 密封装置 |
| TW201204966A (en) * | 2010-07-23 | 2012-02-01 | qi-yun Gong | Magnetic fluid sealing device |
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2011
- 2011-05-12 KR KR1020127028957A patent/KR101748176B1/ko active Active
- 2011-05-12 US US13/698,096 patent/US9000643B2/en active Active
- 2011-05-12 CN CN201180025067.5A patent/CN102906473B/zh active Active
- 2011-05-12 DE DE112011101735.9T patent/DE112011101735B4/de active Active
- 2011-05-12 CA CA2799379A patent/CA2799379A1/en not_active Abandoned
- 2011-05-12 JP JP2012515739A patent/JP5718327B2/ja active Active
- 2011-05-12 WO PCT/JP2011/002654 patent/WO2011145302A1/ja not_active Ceased
- 2011-05-20 TW TW100117802A patent/TWI573945B/zh active
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|---|---|---|---|---|
| JPS5951216U (ja) * | 1982-09-29 | 1984-04-04 | 日立金属株式会社 | 紙切刃物における駆動連結機構 |
| JPH074964U (ja) * | 1993-06-18 | 1995-01-24 | 日本精工株式会社 | 密封装置 |
| JP2002026105A (ja) * | 2000-07-05 | 2002-01-25 | Daikin Ind Ltd | 真空搬送モジュール |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102906473B (zh) | 2015-04-08 |
| JP5718327B2 (ja) | 2015-05-13 |
| KR20130079388A (ko) | 2013-07-10 |
| TWI573945B (zh) | 2017-03-11 |
| TW201229407A (en) | 2012-07-16 |
| CN102906473A (zh) | 2013-01-30 |
| US9000643B2 (en) | 2015-04-07 |
| KR101748176B1 (ko) | 2017-06-16 |
| US20130057116A1 (en) | 2013-03-07 |
| JPWO2011145302A1 (ja) | 2013-07-22 |
| DE112011101735T5 (de) | 2013-06-27 |
| DE112011101735B4 (de) | 2021-01-14 |
| CA2799379A1 (en) | 2011-11-24 |
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