WO2015107643A1 - Hoist for elevator - Google Patents

Hoist for elevator Download PDF

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Publication number
WO2015107643A1
WO2015107643A1 PCT/JP2014/050640 JP2014050640W WO2015107643A1 WO 2015107643 A1 WO2015107643 A1 WO 2015107643A1 JP 2014050640 W JP2014050640 W JP 2014050640W WO 2015107643 A1 WO2015107643 A1 WO 2015107643A1
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WO
WIPO (PCT)
Prior art keywords
stator
support portion
damping member
hoisting machine
vibration
Prior art date
Application number
PCT/JP2014/050640
Other languages
French (fr)
Japanese (ja)
Inventor
山本　幸弘
木村　康樹
橋本　昭
諭 山代
順一 多田
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201480073333.5A priority Critical patent/CN105916794B/en
Priority to PCT/JP2014/050640 priority patent/WO2015107643A1/en
Priority to JP2015557628A priority patent/JP6223475B2/en
Publication of WO2015107643A1 publication Critical patent/WO2015107643A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0438—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a gearless driving, e.g. integrated sheave, drum or winch in the stator or rotor of the cage motor

Definitions

  • This invention relates to an elevator hoist that generates a driving force for moving a car.
  • the present invention has been made to solve the above-described problems, and an object thereof is to obtain an elevator hoisting machine capable of reducing noise more reliably.
  • the elevator hoisting machine includes a support base having a first support portion and a second support portion horizontally separated from the first support portion, a first support portion, and a second support portion.
  • a rotating shaft supported rotatably, a drive sheave fixed between the first supporting portion and the second supporting portion, fixed to the rotating shaft, and a cylindrical stator fixed to the first supporting portion And a rotor fixed to the rotating shaft inside the stator and rotated with respect to the stator, and provided on the stator and the motor disposed on the side opposite to the drive sheave side as viewed from the first support portion.
  • a deformation suppressing body that includes a damping member and suppresses elastic deformation of the stator in which the radial dimension of the stator changes is provided.
  • the elastic deformation of the stator itself can be suppressed by the deformation suppressing body, and the vibration due to the elastic deformation of the stator itself can be effectively suppressed. Therefore, the noise of the hoisting machine can be reduced more reliably.
  • FIG. 3 It is a block diagram which shows the elevator by Embodiment 1 of this invention. It is a longitudinal cross-sectional view which shows the winding machine of FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG. 3 which vibrates in an elliptical mode. It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG. 3 which vibrates in an elliptical mode. It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG. 3 which vibrates in a triangle mode. It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG.
  • FIG. 3 which vibrates in a triangle mode. It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 2 of this invention.
  • FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 3 of this invention.
  • FIG. 11 is a sectional view taken along line XI-XI in FIG. 10. It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 4 of this invention.
  • FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 5 of this invention.
  • FIG. 15 is a cross-sectional view taken along line XV-XV in FIG. 14. It is a figure which shows a stator when it sees along the arrow XVI of FIG. It is an enlarged view which shows the principal part of the stator of FIG. It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 6 of this invention. It is a figure which shows a stator when it sees along the arrow XIX of FIG. It is a perspective view which shows the damping member of FIG. It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 7 of this invention. It is a figure which shows a stator when it sees along the arrow XXII of FIG. It is a perspective view which shows the damping member of FIG.
  • FIG. 1 is a block diagram showing an elevator according to Embodiment 1 of the present invention.
  • a car 2 and a counterweight 3 are provided in the hoistway 1 so as to be able to move up and down.
  • a machine room 4 is provided in the upper part of the hoistway 1.
  • the machine room 4 is provided with a hoisting machine (elevator hoisting machine) 5 that generates a driving force for raising and lowering the car 2 and the counterweight 3 in the hoistway 1, and a baffle 6.
  • the hoisting machine 5 includes a hoisting machine main body 7, a driving sheave 8 that is rotated by the driving force of the hoisting machine main body 7, and a support that is fixed in the machine room 4 and supports the hoisting machine main body 7 and the driving sheave 8. It has a table 9.
  • the baffle wheel 6 is arranged away from the drive sheave 8.
  • the car 2 and the counterweight 3 are suspended in the hoistway 1 by a plurality of cord-like bodies (suspended bodies) 10 wound around the drive sheave 8 and the deflecting wheel 6. For example, a rope or a belt is used as the cord-like body 10.
  • the car 2 and the counterweight 3 are moved up and down in the hoistway 1 by the rotation of the drive sheave 8.
  • FIG. 2 is a longitudinal sectional view showing the hoist 5 of FIG.
  • FIG. 3 is a sectional view taken along line III-III in FIG.
  • the hoisting machine 5 is arranged with its axis line horizontal.
  • the support base 9 includes a first base portion 12 and a first support portion 12 which are disposed apart from each other in the axial direction of the hoisting machine 5 (that is, the horizontal direction) and fixed to the upper surface of the base 11. And a second support portion 13.
  • the hoisting machine main body 7 is provided on the rotating shaft 21 arranged along the axial direction of the hoisting machine 5, the motor 22 that generates a driving force for rotating the rotating shaft 21, and the noise of the motor 22.
  • the rotary shaft 21 is rotatably supported on each of the first support portion 12 and the second support portion 13 via a bearing (not shown).
  • the rotating shaft 21 passes through the first support portion 12 and the second support portion 13.
  • the drive sheave 8 is fixed to the rotating shaft 21 in a state of being disposed in a space between the first support portion 12 and the second support portion 13. As a result, the drive sheave 8 is rotated integrally with the rotary shaft 21.
  • the motor 22 is provided on the side opposite to the drive sheave 8 side in the axial direction of the hoisting machine 5 when viewed from the first support portion 12.
  • the motor 22 includes a cylindrical stator 25 that surrounds the rotating shaft 21, and a rotor 26 that is disposed inside the stator 25 via a predetermined gap and is fixed to the rotating shaft 21.
  • the stator 25 is arranged coaxially with the rotary shaft 21 in a state where one end of the stator 25 in the axial direction is fixed to the first support portion 12.
  • the stator 25 has a cylindrical stator core 27 surrounding the rotor 26, a plurality of stator coils 28 provided on the stator core 27, and a metal stator fixing member 29 fixed to the outer peripheral portion of the stator core 27.
  • the stator core 27 is a laminated body configured by laminating a plurality of steel plates. Each stator coil 28 is provided on the stator core 27 in a state in which a part thereof protrudes from the stator core 27 in the axial direction of the rotating shaft 21.
  • the stator fixing member 29 is a cylindrical first member fixed to the outer peripheral portion of one end portion in the axial direction of the stator core 27 (the end portion on the side closer to the first support portion 12 of both axial end portions of the stator core 27).
  • the outer peripheral ring 30 and the second outer peripheral ring 31 fixed to the outer peripheral portion of the other end in the axial direction of the stator core 27 (the end on the side farther from the first support portion 12 among the both ends in the axial direction of the stator core 27).
  • a plurality of connecting members 32 that connect the first and second outer peripheral rings 30 and 31 and are spaced apart from each other in the circumferential direction of the stator 25.
  • Each of the first outer ring 30, the second outer ring 31, and each connecting member 32 is fixed to the stator core 27 by, for example, welding.
  • a first outer peripheral ring 30 is fixed by a plurality of bolts 33 to the side surface of the first support portion 12 on the motor 22 side (that is, the side surface opposite to the drive sheave 8 side of the first support portion 12). Yes.
  • the stator 25 is supported by the first support portion 12 in a state where the first outer peripheral ring 30 is fixed to the first support portion 12.
  • a base 11 is disposed below the stator 25.
  • the rotor 26 is arranged coaxially with the stator 25.
  • the rotor 26 includes a rotor core 34 fixed to the rotating shaft 21 and a plurality of permanent magnets 35 provided on the rotor core 34 and arranged in the circumferential direction of the rotor core 34.
  • the rotor core 34 is made of a casting or the like.
  • the stator 25 generates a rotating magnetic field by energizing the stator coil 28.
  • the rotor 26 and the rotating shaft 21 are rotated with respect to the stator 25 by a rotating magnetic field generated by the stator 25.
  • the drive sheave 8 is rotated by the rotation of the rotating shaft 21 and the rotor 26.
  • stator 25 When the rotor 26 is rotated by energizing the stator coil 28, the stator 25 receives the exciting force in the radial direction of the motor 22 by the electromagnetic force generated between the stator core 27 and the permanent magnet 35.
  • stator 25 receives an excitation force, elastic deformation in which the radial dimension of the stator 25 changes easily occurs in the stator 25, and vibration due to elastic deformation of the stator 25 is likely to occur in the stator 25.
  • the deformation suppressing body 23 is connected between the stator 25 and the base 11 through an opening provided at the bottom of the cover 24. Further, the deformation suppressing body 23 is fixed to the base 11 while the vibration damping member 41 is fixed to the second outer peripheral ring 31 located at the other axial end of the stator 25, and the vibration damping member 41 is fixed. And a receiving plate (receiving member) 42.
  • the damping member 41 and the receiving plate 42 are castings, and are metal rigid bodies that are not elastically deformed.
  • the width direction dimensions of the damping member 41 and the receiving plate 42 when the stator 25 and the deformation suppressing body 23 are viewed along the axis of the stator 25 are substantially the same as the outer diameter of the stator 25 as shown in FIG. It has become.
  • the shape of the upper surface of the vibration damping member 41 is an arc shape along the second outer peripheral ring 31.
  • the upper part of the damping member 41 is fixed to the side surface of the second outer ring 31 with a plurality of bolts 43 with the upper surface of the damping member 41 aligned with the circumferential direction of the second outer ring 31.
  • the bolts 43 are provided at intervals in the circumferential direction of the second outer peripheral ring 31.
  • the receiving plate 42 is horizontally fixed to the base 11 with a plurality of bolts 44.
  • the lower end portion of the damping member 41 is fixed to the upper surface of the receiving plate 42 by a plurality of bolts 45. Thereby, the vibration of the stator 25 with respect to the base 11 is suppressed.
  • the cover 24 is attached to the first support portion 12 with bolts or the like.
  • the stator 25 When the rotor 26 is rotated with respect to the stator 25, the stator 25 receives an exciting force in the radial direction of the motor 22 by an electromagnetic force generated between the stator 25 and the rotor 26. At this time, as the rotational speed of the rotor 26 increases, the excitation frequency due to the electromagnetic force between the stator 25 and the rotor 26 also increases.
  • the stator 25 and the first The support portion 12 is easily elastically deformed.
  • the stator 25 vibrates while being elastically deformed in a low-order vibration mode (for example, an elliptical mode (secondary vibration mode) or a triangular mode (third-order vibration mode)
  • the deformation amount of the stator 25 increases.
  • the noise of vibration due to the elastic deformation of the stator 25 tends to increase.
  • the vibration due to the elastic deformation of the stator 25 is larger at the other axial end portion of the stator 25 away from the first support portion 12 than at one axial end portion of the stator 25 near the first support portion 12.
  • FIGS. 4 and 5 are schematic views showing the state of elastic deformation of the stator 25 of FIG. 3 that vibrates in the elliptical mode
  • FIGS. 6 and 7 are schematic views showing the state of elastic deformation of the stator 25 of FIG. 3 that vibrates in the triangular mode.
  • FIG. As shown in FIGS. 4 to 7, when the stator 25 vibrates while receiving the exciting force in the radial direction of the motor 22, the elastic deformation in which the radial dimension of the stator 25 changes (FIGS. 4 to 5). 7 is generated in the stator 25. Further, the position of the antinode of vibration (that is, the position of the portion of the stator 25 that is most elastically deformed radially outward of the stator 25 by the vibration of the stator 25) is determined for each next vibration mode.
  • the damping member 41 changes from the damping member 41 to the stator 25 so that the normal shape (cylindrical shape) of the stator 25 is maintained. A force is applied, and an increase in elastic deformation of the stator 25 is suppressed. Further, the vibration of the stator 25 with respect to the base 11 is also suppressed by receiving the damping member 41 by the receiving plate 42 fixed to the base 11.
  • the deformation suppressing body 23 is connected between the base 11 and the stator 25, not only vibration due to elastic deformation of the stator 25 itself but also vibration of the stator 25 relative to the base 11 can be suppressed. Thereby, noise due to vibration of the motor 22 can be further reliably reduced.
  • the damping member 41 is fixed to the base 11 via the receiving plate 42, but the receiving plate 42 is eliminated and the damping member 41 is bolted to the base 11 without the receiving plate 42. It may be fixed directly with, for example.
  • FIG. FIG. 8 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 2 of the present invention.
  • FIG. 9 is a sectional view taken along line IX-IX in FIG.
  • the deformation suppression body 23 is connected between the stator 25 and the base 11 through an opening provided at the bottom of the cover 24 as in the first embodiment. Further, the deformation suppressing body 23 includes a plurality of (two in this example) damping members 51 fixed to the second outer peripheral ring 31 positioned at the other axial end of the stator 25, and each damping member 51. And a common receiving plate (receiving member) 52 fixed to the base 11 with a plurality of bolts 44. The configuration of the receiving plate 52 is the same as the configuration of the receiving plate 42 of the first embodiment.
  • the vibration damping members 51 are arranged apart from each other in the circumferential direction of the stator 25.
  • the vibration damping members 51 are arranged apart from each other in the horizontal direction on a plane perpendicular to the axial direction of the stator 25.
  • each damping member 51 is arranged on the left and right with respect to the axis of the stator 25 when the stator 25 is viewed along the axis of the stator 25.
  • the upper end portions of the vibration damping members 51 are individually fixed to the outer peripheral surface of the second outer peripheral ring 31 with bolts 53.
  • the lower end portions of the vibration damping members 51 are individually fixed to the upper surface of the receiving plate 52 with bolts 54.
  • each damping member 51 includes an upper connection plate (connection member) 511 fixed to the second outer peripheral ring 31, and a lower connection plate (connection member) 512 fixed to the receiving plate 52. And viscoelastic body 513 having viscosity and elasticity and sandwiched between upper connection plate 511 and lower connection plate 512.
  • the upper connection plate 511 and the lower connection plate 512 are arranged in a state where the lower part of the upper connection plate 511 and the upper part of the lower connection plate 512 are opposed to each other in the axial direction of the rotary shaft 21.
  • the viscoelastic body 513 is sandwiched between the lower part of the upper connection plate 511 and the upper part of the lower connection plate 512 in the axial direction of the rotary shaft 21.
  • the upper connection plate 511 and the lower connection plate 512 are connected to each other via a viscoelastic body 513.
  • the viscoelastic body 513 is fixed to the upper connection plate 511 and the lower connection plate 512 with an adhesive.
  • Examples of the material constituting the viscoelastic body 513 include rubber or resin.
  • the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes is mainly suppressed by the viscoelastic deformation of the viscoelastic body 513.
  • Other configurations are the same as those in
  • the deformation suppressing body 23 is coupled between the second outer peripheral ring 31 and the base 11, and the damping member 51 included in the deformation suppressing body 23 includes an upper connection plate 511 and a lower connection plate. 512, and the viscoelastic body 513 sandwiched between the upper connection plate 511 and the lower connection plate 512, the vibration due to the elastic deformation of the stator 25 is absorbed by the viscoelastic deformation of the viscoelastic body 513.
  • the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be effectively suppressed with a simple configuration.
  • the number of damping members 51 is two, but the number of damping members 51 may be one, or may be three or more.
  • FIG. 10 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 3 of the present invention.
  • FIG. 11 is a cross-sectional view taken along line XI-XI in FIG.
  • the deformation suppressing body 23 has a plurality of (in this example, two) metal damping members 61 connected between the stator 25 and the base 11.
  • one and the other damping members 61 are disposed on both the left and right sides with respect to the axial line of the stator 25.
  • each damping member 61 includes a base-side fixing portion 61a fixed to the upper surface of the base 11 with a bolt 44, and a stator extending in the circumferential direction of the second outer peripheral ring 31 from the base-side fixing portion 61a. Side fixing part 61b. Each stator side fixing portion 61 b is in contact with the outer peripheral surface of the second outer peripheral ring 31. In this example, as shown in FIG. 10, each damping member 61 is disposed over the entire axial range of the stator 25.
  • each damping member 61 is in a state where the stator side fixing portion 61b is in contact with not only the outer peripheral surface of the second outer peripheral ring 31 but also the outer peripheral surface of the first outer peripheral ring 30. And the base 11.
  • Each stator side fixing portion 61 b is fixed to the second outer peripheral ring 31 with a bolt 62.
  • Other configurations are the same as those in the first embodiment.
  • the damping member 61 can suppress elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes.
  • vibration due to elastic deformation of the stator 25 itself can be effectively suppressed.
  • stator side fixing portion 61b of each damping member 61 is in contact with each of the first outer peripheral ring 30 and the second outer peripheral ring 31, but the outer peripheral surface of the second outer peripheral ring 31. Only the stator-side fixing portion 61b of each damping member 61 may be brought into contact with each other.
  • the number of damping members 61 is two. However, the number of damping members 61 may be one, or may be three or more.
  • FIG. 12 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 4 of the present invention.
  • FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG.
  • the deformation suppressing body 23 includes a plurality of (in this example, two) oil dampers (vibration control members) 65 fixed to the second outer peripheral ring 31 positioned at the other axial end of the stator 25, and each oil damper. 65 and a common receiving plate (receiving member) 66 fixed to the base 11 with a plurality of bolts 44.
  • the configuration of the receiving plate 66 is the same as the configuration of the receiving plate 42 of the first embodiment.
  • one and the other oil dampers 65 are disposed on both the left and right sides with respect to the axis of the stator 25. Further, in this example, as shown in FIG. 13, the oil dampers 65 are arranged so that the axial direction of the oil dampers 65 is the radial direction of the stator 25.
  • each oil damper 65 is fixed to the outer peripheral surface of the second outer peripheral ring 31, and the lower end portion of each oil damper 65 is fixed to the upper surface of the receiving plate 66.
  • Each oil damper 65 is expanded and contracted while receiving the resistance force of the oil in the oil damper 65.
  • each oil damper 65 is connected to a damper control unit 67 that controls the damping force of each oil damper 65.
  • the second outer peripheral ring 31 is provided with a vibration sensor 68 that detects the vibration of the stator 25. Information from the vibration sensor 68 is sent to the damper controller 67.
  • the damper control unit 67 controls the damping force of each oil damper 65 in a direction to suppress the vibration detected by the vibration sensor 68 based on information from the vibration sensor 68.
  • Other configurations are the same as those in the first embodiment.
  • the deformation suppressing body 23 is connected between the second outer peripheral ring 31 and the base 11, and the vibration damping member included in the deformation suppressing body 23 is the oil damper 65.
  • the vibration due to the deformation can be attenuated by the resistance force of the oil damper 65, and the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be effectively suppressed with a simple configuration.
  • the vibration sensor 68 is provided on the second outer peripheral ring 31 and the damper control unit 67 controls the damping force of the oil damper 65 in a direction to suppress the vibration detected by the vibration sensor 68, the elastic deformation of the stator 25 is performed. The vibration due to can be further reliably suppressed.
  • the damping force of the oil damper 65 is controlled by the damper control unit 67 based on information from the vibration sensor 68.
  • the damping force of the stator 25 can be controlled without controlling the damping force of the oil damper 65. Since elastic deformation can be suppressed, the vibration sensor 68 and the damper control unit 67 may not be provided.
  • the number of oil dampers 65 is two, but the number of oil dampers 65 may be one, or may be three or more.
  • FIG. 14 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 5 of the present invention.
  • 15 is a cross-sectional view taken along the line XV-XV in FIG. 14, and
  • FIG. 16 is a view showing the stator 25 when viewed along the arrow XVI in FIG.
  • FIG. 17 is an enlarged view showing a main part of the stator 25 of FIG.
  • the deformation suppressing body 23 includes a first damping member 71 that surrounds the outer peripheral portion of the first outer peripheral ring 30, and a second second member that surrounds the outer peripheral portion of the second outer peripheral ring 31.
  • a vibration damping member 72 is an enlarged view showing a main part of the stator 25 of FIG.
  • the deformation suppressing body 23 includes a first damping member 71 that surrounds the outer peripheral portion of the first outer peripheral ring 30, and a second second member that surrounds the outer peripheral portion of the second outer peripheral ring 31.
  • a vibration damping member 72 is
  • the vibration damping structural members 701 are fastened together by bolts 73 by fastening the overlapping portions of the vibration damping structural members 701 adjacent to each other. It is fixed to.
  • the vibration damping component members 701 are fastened together with the bolts 73 by fastening the overlapping portions of the vibration damping component members 701 adjacent to each other so that each vibration damping component member 701 is in the second outer ring 31. It is fixed to.
  • Each vibration damping component 701 has a first connection plate (connection member) 702 made of metal, a second connection plate (connection member) 703 made of metal, and viscosity and elasticity, and the first connection plate And viscoelastic body 704 sandwiched between 702 and second connection plate 703.
  • the first and second connection plates 702 and 703 are arranged along the circumferential direction of the stator 25.
  • the circumferential end portions of the first and second connection plates 702 and 703 are opposed to each other in the radial direction of the stator 25.
  • the viscoelastic body 704 is sandwiched between the circumferential end of the first connection plate 702 and the circumferential end of the second connection plate 703 in the radial direction of the stator 25.
  • the first connection plate 702 and the second connection plate 703 are connected to each other via a viscoelastic body 704.
  • the viscoelastic body 704 is fixed to the first connection plate 702 and the second connection plate 703 with an adhesive.
  • Examples of the material constituting the viscoelastic body 704 include rubber or resin.
  • first vibration damping member 71 the other circumferential ends of the first and second connection plates 702 and 703 are fixed to the first outer ring 30 with bolts 73.
  • second damping member 72 the other circumferential ends of the first and second connection plates 702 and 703 are fixed to the second outer ring 31 with bolts 73.
  • the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes is suppressed mainly by the viscoelastic deformation of the viscoelastic body 704 in each of the first and second damping members 71 and 72.
  • Other configurations are the same as those in the first embodiment.
  • each of the first and second damping members 71 and 72 is provided in the stator 25.
  • only one of the first and second damping members 71 and 72 is provided in the stator 25. May be provided.
  • FIG. FIG. 18 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 6 of the present invention.
  • FIG. 19 is a diagram showing the stator 25 when viewed along the arrow XIX in FIG.
  • the deformation suppressing body 23 includes a plurality of vibration damping members 81 provided on the outer peripheral portion of the stator 25.
  • the damping members 81 are arranged at intervals from each other in the circumferential direction of the stator 25. Further, each damping member 81 is disposed along the axial direction of the stator 25.
  • each damping member 81 in the axial direction is fixed to the outer peripheral surface of the first outer ring 30 with a bolt 82, and the other end in the axial direction of each damping member 81 is the second outer periphery. It is fixed to the outer peripheral surface of the ring 31 with a bolt 83. Thereby, each damping member 81 connects both ends of the stator 25 in the axial direction.
  • FIG. 20 is a perspective view showing the vibration damping member 81 of FIG.
  • the damping member 81 has a first connection plate (connection member) 801 and a second connection plate (connection member) 802 made of metal, which face each other in the radial direction of the stator 25, and have viscosity and elasticity.
  • the second connection plate 802 is located on the radially outer side of the stator 25 than the first connection plate 801.
  • the viscoelastic body 803 overlaps the entire surface of the first connection plate 801, and the second connection plate 802 overlaps the entire surface of the viscoelastic body 803.
  • the first and second connection plates 801 and 802 are connected to each other via a viscoelastic body 803.
  • the viscoelastic body 803 is fixed to the first connection plate 801 and the second connection plate 802 with an adhesive.
  • Examples of the material constituting the viscoelastic body 803 include rubber or resin. Other configurations are the same as those in the first embodiment.
  • each damping member 81 connects both ends in the axial direction of the stator 25, so that the end fixed to the first support portion 12 among the both ends in the axial direction of the stator 25.
  • elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be suppressed not only at the end portion away from the first support portion 12.
  • each damping member 81 connected to the end of the stator 25 that is not easily elastically deformed by the first support 12 can press the end of the stator 25 away from the first support 12.
  • the elastic deformation of the stator 25 can be suppressed even at the end of the stator 25 away from the support portion 12. Thereby, the noise of the hoisting machine 5 can be reduced more reliably.
  • the viscoelastic body 803 overlaps the entire surface of the first connection plate 801, but the viscoelastic body 803 may be overlapped only on a part of the first connection plate 801.
  • FIG. 21 is a longitudinal sectional view showing the hoist 5 according to Embodiment 7 of the present invention.
  • 22 is a diagram showing the stator 25 when viewed along the arrow XXII in FIG.
  • the deformation suppressing body 23 has a plurality of vibration damping members 91 provided on the outer peripheral portion of the stator 25.
  • the vibration damping members 91 are arranged at intervals from each other in the circumferential direction of the stator 25.
  • each damping member 91 is fixed to the outer peripheral surface of the first outer ring 30 with a bolt 92, and the other end of each damping member 91 is the outer periphery of the second outer ring 31.
  • the surface is fixed with bolts 93.
  • each damping member 91 connects both ends of the stator 25 in the axial direction.
  • each damping member 91 includes a first axial portion 91 a fixed to the first outer peripheral ring 30, a second axial portion 91 b fixed to the second outer peripheral ring 31, It has the connection part 91c which connects each edge part of 2nd axial direction part 91a, 91b.
  • Each of the first and second axial portions 91 a and 91 b is disposed along the axial direction of the stator 25, and the connecting portion 91 c is disposed along the circumferential direction of the stator 25.
  • FIG. 23 is a perspective view showing the vibration damping member 91 of FIG.
  • the vibration damping member 91 has a first connection plate (connection member) 901 and a second connection plate (connection member) 902 made of metal, which are opposed to each other in the radial direction of the stator 25, and have viscosity and elasticity.
  • the second connection plate 902 is located on the radially outer side of the stator 25 than the first connection plate 901.
  • the viscoelastic body 903 overlaps the entire surface of the first connection plate 901, and the second connection plate 902 overlaps the entire surface of the viscoelastic body 903.
  • the first axial direction portion 91a, the second axial direction portion 91b, and the connecting portion 91c are respectively configured by a part of the first connection plate 901, the second connection plate 902, and the viscoelastic body 903. ing.
  • the first and second connection plates 901 and 902 are connected to each other via a viscoelastic body 903.
  • the viscoelastic body 903 is fixed to the first connection plate 901 and the second connection plate 902 with an adhesive.
  • Examples of the material constituting the viscoelastic body 903 include rubber or resin. Other configurations are the same as those in the first embodiment.
  • the position of one end portion of the damping member 91 that connects both axial ends of the stator 25 is shifted in the circumferential direction of the stator 25 with respect to the position of the other end portion of the damping member 91. Therefore, as in the sixth embodiment, the end of the stator 25 separated from the first support portion 12 by each damping member 91 connected to the end portion of the stator 25 that is not easily elastically deformed by the first support portion 12. You can hold the part. Further, the elastic deformation of the stator 25 can also be suppressed by the vibration damping members 91 in the circumferential direction of the stator 25. Thereby, the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be further reliably suppressed, and the noise of the hoisting machine 5 can be further reliably reduced.
  • the connecting portions 91c of the vibration damping members 91 are arranged along the circumferential direction of the stator 25.
  • the connecting portions 91c may be arranged so as to be inclined with respect to the circumferential direction of the stator 25. Good.
  • the connection part of each of the 1st and 2nd axial direction parts 91a and 91b and the connection part 91c may be bent gently.
  • the band-shaped damping member 91 along the straight line may be disposed along the outer peripheral portion of the stator 25 while being inclined with respect to the axial direction of the stator 25.
  • the viscoelastic body 903 overlaps the entire surface of the first connection plate 901.
  • the viscoelastic body 903 may be overlapped only on a part of the first connection plate 901.
  • the damping member may be made of a damping alloy that easily absorbs vibration. If it does in this way, a damping member can be manufactured with the same material, and the composition of a damping member can be further simplified.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Motor Or Generator Frames (AREA)
  • Vibration Prevention Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A hoist for an elevator is configured in such a manner that a drive sheave (8) affixed to a rotating shaft (21) is disposed between a first support section (12) and a second support section (13), the first support section (12) and the second support section (13) being located at a distance from each other in the horizontal direction. A motor has a cylindrical stator (25) which is affixed to the first support section and a rotor (26) which is affixed to the rotating shaft within the stator and which is rotated relative to the stator. The motor is disposed on the opposite side of the first support section (12) from the drive sheave (8). A deformation suppression body (23) for suppressing the elastic deformation of the stator, the radial dimension of which changes, has a vibration damping member (41) provided to the stator.

Description

エレベータ用巻上機Elevator hoisting machine
　この発明は、かごを移動させる駆動力を発生するエレベータ用巻上機に関するものである。 This invention relates to an elevator hoist that generates a driving force for moving a car.
　従来、モータからの騒音を低減するために、樹脂又はゴムで構成された制振部材をステータとハウジングとの間に介在させてモータの振動を低減させるようにした構造が知られている（特許文献１参照）。 Conventionally, in order to reduce noise from a motor, a structure is known in which a vibration damping member made of resin or rubber is interposed between a stator and a housing to reduce motor vibration (patent) Reference 1).
特開２００６－１６６５５４号公報JP 2006-166554 A
　しかし、従来のモータでは、モータの電磁加振力によって生じるステータ自体の弾性変形を抑制することができず、モータの振動による騒音をさらに低減することができない。 However, in a conventional motor, the elastic deformation of the stator itself caused by the electromagnetic excitation force of the motor cannot be suppressed, and noise due to motor vibration cannot be further reduced.
　この発明は、上記のような課題を解決するためになされたものであり、騒音をより確実に低減することができるエレベータ用巻上機を得ることを目的とする。 The present invention has been made to solve the above-described problems, and an object thereof is to obtain an elevator hoisting machine capable of reducing noise more reliably.
　この発明によるエレベータ用巻上機は、第１の支持部と、第１の支持部から水平方向へ離れた第２の支持部とを有する支持台、第１の支持部及び第２の支持部に回転自在に支持された回転軸、第１の支持部と第２の支持部との間に配置され、回転軸に固定された駆動シーブ、第１の支持部に固定された筒状のステータと、ステータの内側で回転軸に固定され、ステータに対して回転されるロータとを有し、第１の支持部からみて駆動シーブ側と反対側に配置されたモータ、及びステータに設けられた制振部材を有し、ステータの径方向の寸法が変化するステータの弾性変形を抑制する変形抑制体を備えている。 The elevator hoisting machine according to the present invention includes a support base having a first support portion and a second support portion horizontally separated from the first support portion, a first support portion, and a second support portion. A rotating shaft supported rotatably, a drive sheave fixed between the first supporting portion and the second supporting portion, fixed to the rotating shaft, and a cylindrical stator fixed to the first supporting portion And a rotor fixed to the rotating shaft inside the stator and rotated with respect to the stator, and provided on the stator and the motor disposed on the side opposite to the drive sheave side as viewed from the first support portion. A deformation suppressing body that includes a damping member and suppresses elastic deformation of the stator in which the radial dimension of the stator changes is provided.
　この発明によるエレベータ用巻上機によれば、ステータ自体の弾性変形を変形抑制体によって抑制することができ、ステータ自体の弾性変形による振動を効果的に抑制することができる。従って、巻上機の騒音をより確実に低減することができる。 According to the elevator hoist according to the present invention, the elastic deformation of the stator itself can be suppressed by the deformation suppressing body, and the vibration due to the elastic deformation of the stator itself can be effectively suppressed. Therefore, the noise of the hoisting machine can be reduced more reliably.
この発明の実施の形態１によるエレベータを示す構成図である。It is a block diagram which shows the elevator by Embodiment 1 of this invention. 図１の巻上機を示す縦断面図である。It is a longitudinal cross-sectional view which shows the winding machine of FIG. 図２のＩＩＩ－ＩＩＩ線に沿った断面図である。FIG. 3 is a cross-sectional view taken along line III-III in FIG. 楕円モードで振動する図３のステータの弾性変形の状態を示す模式図である。It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG. 3 which vibrates in an elliptical mode. 楕円モードで振動する図３のステータの弾性変形の状態を示す模式図である。It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG. 3 which vibrates in an elliptical mode. 三角形モードで振動する図３のステータの弾性変形の状態を示す模式図である。It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG. 3 which vibrates in a triangle mode. 三角形モードで振動する図３のステータの弾性変形の状態を示す模式図である。It is a schematic diagram which shows the state of the elastic deformation of the stator of FIG. 3 which vibrates in a triangle mode. この発明の実施の形態２による巻上機を示す縦断面図である。It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 2 of this invention. 図８のＩＸ－ＩＸ線に沿った断面図である。FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. この発明の実施の形態３による巻上機を示す縦断面図である。It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 3 of this invention. 図１０のＸＩ－ＸＩ線に沿った断面図である。FIG. 11 is a sectional view taken along line XI-XI in FIG. 10. この発明の実施の形態４による巻上機を示す縦断面図である。It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 4 of this invention. 図１２のＸＩＩＩ－ＸＩＩＩ線に沿った断面図である。FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. この発明の実施の形態５による巻上機を示す縦断面図である。It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 5 of this invention. 図１４のＸＶ－ＸＶ線に沿った断面図である。FIG. 15 is a cross-sectional view taken along line XV-XV in FIG. 14. 図１４の矢印ＸＶＩに沿って見たときのステータを示す図である。It is a figure which shows a stator when it sees along the arrow XVI of FIG. 図１５のステータの要部を示す拡大図である。It is an enlarged view which shows the principal part of the stator of FIG. この発明の実施の形態６による巻上機を示す縦断面図である。It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 6 of this invention. 図１８の矢印ＸＩＸに沿って見たときのステータを示す図である。It is a figure which shows a stator when it sees along the arrow XIX of FIG. 図１９の制振部材を示す斜視図である。It is a perspective view which shows the damping member of FIG. この発明の実施の形態７による巻上機を示す縦断面図である。It is a longitudinal cross-sectional view which shows the winding machine by Embodiment 7 of this invention. 図２１の矢印ＸＸＩＩに沿って見たときのステータを示す図である。It is a figure which shows a stator when it sees along the arrow XXII of FIG. 図２２の制振部材を示す斜視図である。It is a perspective view which shows the damping member of FIG.
　以下、この発明の好適な実施の形態について図面を参照して説明する。
　実施の形態１．
　図１は、この発明の実施の形態１によるエレベータを示す構成図である。図において、昇降路１内には、かご２及び釣合おもり３が昇降可能に設けられている。昇降路１の上部には、機械室４が設けられている。機械室４には、かご２及び釣合おもり３を昇降路１内で昇降させる駆動力を発生する巻上機（エレベータ用巻上機）５と、そらせ車６とが設けられている。 Preferred embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a block diagram showing an elevator according to Embodiment 1 of the present invention. In the figure, a car 2 and a counterweight 3 are provided in the hoistway 1 so as to be able to move up and down. A machine room 4 is provided in the upper part of the hoistway 1. The machine room 4 is provided with a hoisting machine (elevator hoisting machine) 5 that generates a driving force for raising and lowering the car 2 and the counterweight 3 in the hoistway 1, and a baffle 6.
　巻上機５は、巻上機本体７と、巻上機本体７の駆動力により回転される駆動シーブ８と、機械室４内に固定され巻上機本体７及び駆動シーブ８を支持する支持台９とを有している。そらせ車６は、駆動シーブ８から離して配置されている。かご２及び釣合おもり３は、駆動シーブ８及びそらせ車６に巻き掛けられた複数の索状体（吊体）１０により昇降路１内に吊り下げられている。索状体１０としては、例えばロープやベルト等が用いられている。かご２及び釣合おもり３は、駆動シーブ８の回転により昇降路１内を昇降される。 The hoisting machine 5 includes a hoisting machine main body 7, a driving sheave 8 that is rotated by the driving force of the hoisting machine main body 7, and a support that is fixed in the machine room 4 and supports the hoisting machine main body 7 and the driving sheave 8. It has a table 9. The baffle wheel 6 is arranged away from the drive sheave 8. The car 2 and the counterweight 3 are suspended in the hoistway 1 by a plurality of cord-like bodies (suspended bodies) 10 wound around the drive sheave 8 and the deflecting wheel 6. For example, a rope or a belt is used as the cord-like body 10. The car 2 and the counterweight 3 are moved up and down in the hoistway 1 by the rotation of the drive sheave 8.
　図２は、図１の巻上機５を示す縦断面図である。また、図３は、図２のＩＩＩ－ＩＩＩ線に沿った断面図である。図において、巻上機５は、その軸線を水平にして配置されている。支持台９は、水平に配置されたベース１１と、巻上機５の軸線方向（即ち、水平方向）へ互いに離して配置され、ベース１１の上面にそれぞれ固定された第１の支持部１２及び第２の支持部１３とを有している。 FIG. 2 is a longitudinal sectional view showing the hoist 5 of FIG. FIG. 3 is a sectional view taken along line III-III in FIG. In the figure, the hoisting machine 5 is arranged with its axis line horizontal. The support base 9 includes a first base portion 12 and a first support portion 12 which are disposed apart from each other in the axial direction of the hoisting machine 5 (that is, the horizontal direction) and fixed to the upper surface of the base 11. And a second support portion 13.
　巻上機本体７は、巻上機５の軸線方向に沿って配置された回転軸２１と、回転軸２１を回転させる駆動力を発生するモータ２２と、モータ２２に設けられ、モータ２２の騒音を抑制するための変形抑制体２３と、モータ２２を覆うカバー２４とを有している。 The hoisting machine main body 7 is provided on the rotating shaft 21 arranged along the axial direction of the hoisting machine 5, the motor 22 that generates a driving force for rotating the rotating shaft 21, and the noise of the motor 22. A deformation suppression body 23 for suppressing the motor 22 and a cover 24 covering the motor 22.
　回転軸２１は、第１の支持部１２及び第２の支持部１３のそれぞれに軸受（図示せず）を介して回転自在に支持されている。また、回転軸２１は、第１の支持部１２及び第２の支持部１３を貫通している。駆動シーブ８は、第１の支持部１２と第２の支持部１３との間の空間に配置された状態で回転軸２１に固定されている。これにより、駆動シーブ８は、回転軸２１と一体に回転される。 The rotary shaft 21 is rotatably supported on each of the first support portion 12 and the second support portion 13 via a bearing (not shown). The rotating shaft 21 passes through the first support portion 12 and the second support portion 13. The drive sheave 8 is fixed to the rotating shaft 21 in a state of being disposed in a space between the first support portion 12 and the second support portion 13. As a result, the drive sheave 8 is rotated integrally with the rotary shaft 21.
　モータ２２は、巻上機５の軸線方向について、第１の支持部１２からみて駆動シーブ８側と反対側に設けられている。また、モータ２２は、回転軸２１を囲む円筒状のステータ２５と、ステータ２５の内側に所定の隙間を介して配置され、回転軸２１に固定されたロータ２６とを有している。 The motor 22 is provided on the side opposite to the drive sheave 8 side in the axial direction of the hoisting machine 5 when viewed from the first support portion 12. The motor 22 includes a cylindrical stator 25 that surrounds the rotating shaft 21, and a rotor 26 that is disposed inside the stator 25 via a predetermined gap and is fixed to the rotating shaft 21.
　ステータ２５は、ステータ２５の軸線方向一端部が第１の支持部１２に固定された状態で、回転軸２１と同軸に配置されている。また、ステータ２５は、ロータ２６を囲む円筒状のステータコア２７と、ステータコア２７に設けられた複数のステータコイル２８と、ステータコア２７の外周部に固定された金属製のステータ固定部材２９とを有している。ステータコア２７は、複数枚の鋼板を積層して構成された積層体である。各ステータコイル２８は、回転軸２１の軸線方向へ一部をステータコア２７から突出させた状態でステータコア２７に設けられている。 The stator 25 is arranged coaxially with the rotary shaft 21 in a state where one end of the stator 25 in the axial direction is fixed to the first support portion 12. The stator 25 has a cylindrical stator core 27 surrounding the rotor 26, a plurality of stator coils 28 provided on the stator core 27, and a metal stator fixing member 29 fixed to the outer peripheral portion of the stator core 27. ing. The stator core 27 is a laminated body configured by laminating a plurality of steel plates. Each stator coil 28 is provided on the stator core 27 in a state in which a part thereof protrudes from the stator core 27 in the axial direction of the rotating shaft 21.
　ステータ固定部材２９は、ステータコア２７の軸線方向一端部（ステータコア２７の軸線方向両端部のうち、第１の支持部１２に近い側の端部）における外周部に固定された円筒状の第１の外周リング３０と、ステータコア２７の軸線方向他端部（ステータコア２７の軸線方向両端部のうち、第１の支持部１２から遠い側の端部）における外周部に固定された第２の外周リング３１と、第１及び第２の外周リング３０，３１間を繋ぎ、ステータ２５の周方向へ互いに間隔を置いて配置された複数の繋ぎ部材３２とを有している。第１の外周リング３０、第２の外周リング３１及び各繋ぎ部材３２のそれぞれは、ステータコア２７に例えば溶接等により固定されている。 The stator fixing member 29 is a cylindrical first member fixed to the outer peripheral portion of one end portion in the axial direction of the stator core 27 (the end portion on the side closer to the first support portion 12 of both axial end portions of the stator core 27). The outer peripheral ring 30 and the second outer peripheral ring 31 fixed to the outer peripheral portion of the other end in the axial direction of the stator core 27 (the end on the side farther from the first support portion 12 among the both ends in the axial direction of the stator core 27). And a plurality of connecting members 32 that connect the first and second outer peripheral rings 30 and 31 and are spaced apart from each other in the circumferential direction of the stator 25. Each of the first outer ring 30, the second outer ring 31, and each connecting member 32 is fixed to the stator core 27 by, for example, welding.
　第１の支持部１２のモータ２２側の側面（即ち、第１の支持部１２の駆動シーブ８側と反対側の側面）には、第１の外周リング３０が複数のボルト３３により固定されている。ステータ２５は、第１の外周リング３０が第１の支持部１２に固定された状態で第１の支持部１２に支持されている。ステータ２５の下方には、ベース１１が配置されている。 A first outer peripheral ring 30 is fixed by a plurality of bolts 33 to the side surface of the first support portion 12 on the motor 22 side (that is, the side surface opposite to the drive sheave 8 side of the first support portion 12). Yes. The stator 25 is supported by the first support portion 12 in a state where the first outer peripheral ring 30 is fixed to the first support portion 12. A base 11 is disposed below the stator 25.
　ロータ２６は、ステータ２５と同軸に配置されている。また、ロータ２６は、回転軸２１に固定されたロータコア３４と、ロータコア３４に設けられ、ロータコア３４の周方向へ並べられた複数の永久磁石３５とを有している。ロータコア３４は、鋳物等で構成されている。 The rotor 26 is arranged coaxially with the stator 25. The rotor 26 includes a rotor core 34 fixed to the rotating shaft 21 and a plurality of permanent magnets 35 provided on the rotor core 34 and arranged in the circumferential direction of the rotor core 34. The rotor core 34 is made of a casting or the like.
　ステータ２５は、ステータコイル２８への通電により回転磁界を発生する。ロータ２６及び回転軸２１は、ステータ２５が発生する回転磁界によってステータ２５に対して回転する。駆動シーブ８は、回転軸２１及びロータ２６の回転によって回転される。 The stator 25 generates a rotating magnetic field by energizing the stator coil 28. The rotor 26 and the rotating shaft 21 are rotated with respect to the stator 25 by a rotating magnetic field generated by the stator 25. The drive sheave 8 is rotated by the rotation of the rotating shaft 21 and the rotor 26.
　ステータコイル２８への通電によってロータ２６が回転するときには、ステータコア２７と永久磁石３５との間に発生する電磁力によって、モータ２２の径方向への加振力をステータ２５が受ける。ステータ２５が加振力を受けると、ステータ２５の径方向の寸法が変化する弾性変形がステータ２５に生じやすくなり、ステータ２５の弾性変形による振動がステータ２５に発生しやすくなる。 When the rotor 26 is rotated by energizing the stator coil 28, the stator 25 receives the exciting force in the radial direction of the motor 22 by the electromagnetic force generated between the stator core 27 and the permanent magnet 35. When the stator 25 receives an excitation force, elastic deformation in which the radial dimension of the stator 25 changes easily occurs in the stator 25, and vibration due to elastic deformation of the stator 25 is likely to occur in the stator 25.
　変形抑制体２３は、カバー２４の底部に設けられた開口部を通してステータ２５及びベース１１間に連結されている。また、変形抑制体２３は、ステータ２５の軸線方向他端部に位置する第２の外周リング３１に固定された制振部材４１と、制振部材４１が固定されているとともに、ベース１１に固定された受け板（受け部材）４２とを有している。この例では、制振部材４１及び受け板４２が鋳物であり、弾性変形しない金属製の剛体となっている。 The deformation suppressing body 23 is connected between the stator 25 and the base 11 through an opening provided at the bottom of the cover 24. Further, the deformation suppressing body 23 is fixed to the base 11 while the vibration damping member 41 is fixed to the second outer peripheral ring 31 located at the other axial end of the stator 25, and the vibration damping member 41 is fixed. And a receiving plate (receiving member) 42. In this example, the damping member 41 and the receiving plate 42 are castings, and are metal rigid bodies that are not elastically deformed.
　ステータ２５の軸線に沿ってステータ２５及び変形抑制体２３を見たときの制振部材４１及び受け板４２の幅方向寸法は、図３に示すように、ステータ２５の外径寸法とほぼ同じになっている。また、制振部材４１の上面の形状は、第２の外周リング３１に沿った円弧状になっている。制振部材４１の上部は、制振部材４１の上面を第２の外周リング３１の周方向に合わせて第２の外周リング３１の側面に複数のボルト４３で固定されている。各ボルト４３は、第２の外周リング３１の周方向へ互いに間隔を置いて設けられている。これにより、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形が抑制される。 The width direction dimensions of the damping member 41 and the receiving plate 42 when the stator 25 and the deformation suppressing body 23 are viewed along the axis of the stator 25 are substantially the same as the outer diameter of the stator 25 as shown in FIG. It has become. The shape of the upper surface of the vibration damping member 41 is an arc shape along the second outer peripheral ring 31. The upper part of the damping member 41 is fixed to the side surface of the second outer ring 31 with a plurality of bolts 43 with the upper surface of the damping member 41 aligned with the circumferential direction of the second outer ring 31. The bolts 43 are provided at intervals in the circumferential direction of the second outer peripheral ring 31. Thereby, the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes is suppressed.
　受け板４２は、複数のボルト４４によってベース１１に水平に固定されている。制振部材４１の下端部は、複数のボルト４５によって受け板４２の上面に固定されている。これにより、ベース１１に対するステータ２５の振動が抑制される。カバー２４は、第１の支持部１２にボルト等で取り付けられている。 The receiving plate 42 is horizontally fixed to the base 11 with a plurality of bolts 44. The lower end portion of the damping member 41 is fixed to the upper surface of the receiving plate 42 by a plurality of bolts 45. Thereby, the vibration of the stator 25 with respect to the base 11 is suppressed. The cover 24 is attached to the first support portion 12 with bolts or the like.
　次に、動作について説明する。ステータコイル２８への通電によりステータ２５が回転磁界を発生すると、ロータ２６がステータ２５に対して回転する。これにより、駆動シーブ８が回転し、かご２及び釣合おもり３が昇降路１内を昇降される。 Next, the operation will be described. When the stator 25 generates a rotating magnetic field by energizing the stator coil 28, the rotor 26 rotates with respect to the stator 25. As a result, the drive sheave 8 rotates and the car 2 and the counterweight 3 are raised and lowered in the hoistway 1.
　ロータ２６がステータ２５に対して回転されるときには、ステータ２５とロータ２６との間に発生する電磁力により、モータ２２の径方向への加振力をステータ２５が受ける。このとき、ロータ２６の回転速度が高くなるに従って、ステータ２５とロータ２６との間の電磁力による加振周波数も高くなる。 When the rotor 26 is rotated with respect to the stator 25, the stator 25 receives an exciting force in the radial direction of the motor 22 by an electromagnetic force generated between the stator 25 and the rotor 26. At this time, as the rotational speed of the rotor 26 increases, the excitation frequency due to the electromagnetic force between the stator 25 and the rotor 26 also increases.
　加振周波数が高くなって巻上機５及び支持台９のそれぞれの構成要素（例えばステータ２５や第１の支持部１２等）の共振周波数に加振周波数が近くなると、ステータ２５及び第１の支持部１２が弾性変形しやすくなる。特に、低次の振動モード（例えば、楕円モード（二次の振動モード）又は三角形モード（三次の振動モード）等）でステータ２５が弾性変形しながら振動すると、ステータ２５の変形量が大きくなって、ステータ２５の弾性変形による振動の騒音が大きくなりやすくなる。また、ステータ２５の弾性変形による振動は、第１の支持部１２に近いステータ２５の軸線方向一端部よりも、第１の支持部１２から離れたステータ２５の軸線方向他端部のほうが大きくなりやすい。 When the excitation frequency becomes high and the excitation frequency becomes close to the resonance frequency of each component of the hoisting machine 5 and the support base 9 (for example, the stator 25 and the first support portion 12), the stator 25 and the first The support portion 12 is easily elastically deformed. In particular, when the stator 25 vibrates while being elastically deformed in a low-order vibration mode (for example, an elliptical mode (secondary vibration mode) or a triangular mode (third-order vibration mode)), the deformation amount of the stator 25 increases. The noise of vibration due to the elastic deformation of the stator 25 tends to increase. Further, the vibration due to the elastic deformation of the stator 25 is larger at the other axial end portion of the stator 25 away from the first support portion 12 than at one axial end portion of the stator 25 near the first support portion 12. Cheap.
　図４及び図５は楕円モードで振動する図３のステータ２５の弾性変形の状態を示す模式図、図６及び図７は三角形モードで振動する図３のステータ２５の弾性変形の状態を示す模式図である。図４～図７に示すように、モータ２２の径方向への加振力を受けながらステータ２５が振動している状態では、ステータ２５の径方向の寸法が変化する弾性変形（図４～図７の実線で示す形状）がステータ２５に生じる。また、振動の腹の位置（即ち、ステータ２５の振動によってステータ２５の径方向外側へ最も大きく弾性変形しているステータ２５の部分の位置）は、各次の振動モードごとに決まっている。 4 and 5 are schematic views showing the state of elastic deformation of the stator 25 of FIG. 3 that vibrates in the elliptical mode, and FIGS. 6 and 7 are schematic views showing the state of elastic deformation of the stator 25 of FIG. 3 that vibrates in the triangular mode. FIG. As shown in FIGS. 4 to 7, when the stator 25 vibrates while receiving the exciting force in the radial direction of the motor 22, the elastic deformation in which the radial dimension of the stator 25 changes (FIGS. 4 to 5). 7 is generated in the stator 25. Further, the position of the antinode of vibration (that is, the position of the portion of the stator 25 that is most elastically deformed radially outward of the stator 25 by the vibration of the stator 25) is determined for each next vibration mode.
　ステータ２５が振動して、ステータ２５の径方向の寸法が変化する弾性変形がステータ２５に生じると、ステータ２５の通常の形状（円筒状）が維持されるように制振部材４１からステータ２５に力が加わり、ステータ２５の弾性変形の増大が抑制される。また、ベース１１に固定された受け板４２で制振部材４１を受けることにより、ベース１１に対するステータ２５の振動も抑制される。 When the stator 25 vibrates and elastic deformation in which the radial dimension of the stator 25 changes occurs in the stator 25, the damping member 41 changes from the damping member 41 to the stator 25 so that the normal shape (cylindrical shape) of the stator 25 is maintained. A force is applied, and an increase in elastic deformation of the stator 25 is suppressed. Further, the vibration of the stator 25 with respect to the base 11 is also suppressed by receiving the damping member 41 by the receiving plate 42 fixed to the base 11.
　このような巻上機５では、ステータ２５に設けられた制振部材４１を有する変形抑制体２３によって、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形が抑制されるので、ステータ２５自体の弾性変形による振動を効果的に抑制することができる。これにより、モータ２２の振動による騒音をより確実に低減することができる。 In such a hoisting machine 5, since the deformation suppressing body 23 having the damping member 41 provided on the stator 25 suppresses elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes, the stator 25 Vibration due to its own elastic deformation can be effectively suppressed. Thereby, the noise by the vibration of the motor 22 can be reduced more reliably.
　また、変形抑制体２３は、ベース１１及びステータ２５間に連結されているので、ステータ２５自体の弾性変形による振動だけでなく、ベース１１に対するステータ２５の振動も抑制することができる。これにより、モータ２２の振動による騒音をさらに確実に低減することができる。 Further, since the deformation suppressing body 23 is connected between the base 11 and the stator 25, not only vibration due to elastic deformation of the stator 25 itself but also vibration of the stator 25 relative to the base 11 can be suppressed. Thereby, noise due to vibration of the motor 22 can be further reliably reduced.
　なお、上記の例では、制振部材４１が受け板４２を介してベース１１に固定されているが、受け板４２をなくして、受け板４２を介さずに制振部材４１をベース１１にボルト等で直接固定してもよい。 In the above example, the damping member 41 is fixed to the base 11 via the receiving plate 42, but the receiving plate 42 is eliminated and the damping member 41 is bolted to the base 11 without the receiving plate 42. It may be fixed directly with, for example.
　実施の形態２．
　図８は、この発明の実施の形態２による巻上機５を示す縦断面図である。また、図９は、図８のＩＸ－ＩＸ線に沿った断面図である。変形抑制体２３は、実施の形態１と同様に、カバー２４の底部に設けられた開口部を通してステータ２５及びベース１１間に連結されている。また、変形抑制体２３は、ステータ２５の軸線方向他端部に位置する第２の外周リング３１に固定された複数（この例では、２つ）の制振部材５１と、各制振部材５１が固定されているとともに、複数のボルト４４でベース１１に固定された共通の受け板（受け部材）５２とを有している。受け板５２の構成は、実施の形態１の受け板４２の構成と同様である。 Embodiment 2. FIG.
FIG. 8 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 2 of the present invention. FIG. 9 is a sectional view taken along line IX-IX in FIG. The deformation suppression body 23 is connected between the stator 25 and the base 11 through an opening provided at the bottom of the cover 24 as in the first embodiment. Further, the deformation suppressing body 23 includes a plurality of (two in this example) damping members 51 fixed to the second outer peripheral ring 31 positioned at the other axial end of the stator 25, and each damping member 51. And a common receiving plate (receiving member) 52 fixed to the base 11 with a plurality of bolts 44. The configuration of the receiving plate 52 is the same as the configuration of the receiving plate 42 of the first embodiment.
　各制振部材５１は、ステータ２５の周方向について互いに離して配置されている。この例では、各制振部材５１が、ステータ２５の軸線方向に対して垂直な平面上で水平方向へ互いに離して配置されている。また、各制振部材５１は、ステータ２５の軸線方向に沿ってステータ２５を見たとき、ステータ２５の軸線に対して左右に配置されている。各制振部材５１の上端部は、第２の外周リング３１の外周面にボルト５３で個別に固定されている。各制振部材５１の下端部は、受け板５２の上面にボルト５４で個別に固定されている。 The vibration damping members 51 are arranged apart from each other in the circumferential direction of the stator 25. In this example, the vibration damping members 51 are arranged apart from each other in the horizontal direction on a plane perpendicular to the axial direction of the stator 25. Further, each damping member 51 is arranged on the left and right with respect to the axis of the stator 25 when the stator 25 is viewed along the axis of the stator 25. The upper end portions of the vibration damping members 51 are individually fixed to the outer peripheral surface of the second outer peripheral ring 31 with bolts 53. The lower end portions of the vibration damping members 51 are individually fixed to the upper surface of the receiving plate 52 with bolts 54.
　各制振部材５１は、図８に示すように、第２の外周リング３１に固定された上部接続プレート（接続部材）５１１と、受け板５２に固定された下部接続プレート（接続部材）５１２と、粘性及び弾性を持ち、上部接続プレート５１１と下部接続プレート５１２との間に挟まれた粘弾性体５１３とを有している。 As shown in FIG. 8, each damping member 51 includes an upper connection plate (connection member) 511 fixed to the second outer peripheral ring 31, and a lower connection plate (connection member) 512 fixed to the receiving plate 52. And viscoelastic body 513 having viscosity and elasticity and sandwiched between upper connection plate 511 and lower connection plate 512.
　上部接続プレート５１１及び下部接続プレート５１２は、上部接続プレート５１１の下部と下部接続プレート５１２の上部とを回転軸２１の軸線方向について対向させた状態で配置されている。粘弾性体５１３は、上部接続プレート５１１の下部と下部接続プレート５１２の上部との間に回転軸２１の軸線方向について挟まれている。上部接続プレート５１１及び下部接続プレート５１２は、粘弾性体５１３を介して互いに接続されている。この例では、粘弾性体５１３は、上部接続プレート５１１及び下部接続プレート５１２に接着剤で固定されている。粘弾性体５１３を構成する材料としては、例えばゴム又は樹脂等が挙げられる。ステータ２５の径方向の寸法が変化するステータ２５の弾性変形は、主に粘弾性体５１３の粘弾性変形によって抑制される。他の構成は、実施の形態１と同様である。 The upper connection plate 511 and the lower connection plate 512 are arranged in a state where the lower part of the upper connection plate 511 and the upper part of the lower connection plate 512 are opposed to each other in the axial direction of the rotary shaft 21. The viscoelastic body 513 is sandwiched between the lower part of the upper connection plate 511 and the upper part of the lower connection plate 512 in the axial direction of the rotary shaft 21. The upper connection plate 511 and the lower connection plate 512 are connected to each other via a viscoelastic body 513. In this example, the viscoelastic body 513 is fixed to the upper connection plate 511 and the lower connection plate 512 with an adhesive. Examples of the material constituting the viscoelastic body 513 include rubber or resin. The elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes is mainly suppressed by the viscoelastic deformation of the viscoelastic body 513. Other configurations are the same as those in the first embodiment.
　このような巻上機５では、第２の外周リング３１及びベース１１間に変形抑制体２３が連結され、変形抑制体２３に含まれる制振部材５１が、上部接続プレート５１１と、下部接続プレート５１２と、上部接続プレート５１１と下部接続プレート５１２との間に挟まれた粘弾性体５１３とを有しているので、ステータ２５の弾性変形による振動を粘弾性体５１３の粘弾性変形によって吸収させることができ、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形を簡単な構成でかつ効果的に抑制することができる。 In such a hoisting machine 5, the deformation suppressing body 23 is coupled between the second outer peripheral ring 31 and the base 11, and the damping member 51 included in the deformation suppressing body 23 includes an upper connection plate 511 and a lower connection plate. 512, and the viscoelastic body 513 sandwiched between the upper connection plate 511 and the lower connection plate 512, the vibration due to the elastic deformation of the stator 25 is absorbed by the viscoelastic deformation of the viscoelastic body 513. In addition, the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be effectively suppressed with a simple configuration.
　なお、上記の例では、制振部材５１の数が２つであるが、制振部材５１の数を、１つとしてもよいし、３つ以上としてもよい。 In the above example, the number of damping members 51 is two, but the number of damping members 51 may be one, or may be three or more.
　実施の形態３．
　図１０は、この発明の実施の形態３による巻上機５を示す縦断面図である。また、図１１は、図１０のＸＩ－ＸＩ線に沿った断面図である。変形抑制体２３は、ステータ２５及びベース１１間に連結された複数（この例では、２つ）の金属製の制振部材６１を有している。この例では、ステータ２５の軸線方向に沿ってステータ２５を見たとき、一方及び他方の制振部材６１がステータ２５の軸線に対して左右両側に配置されている。 Embodiment 3 FIG.
FIG. 10 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 3 of the present invention. FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. The deformation suppressing body 23 has a plurality of (in this example, two) metal damping members 61 connected between the stator 25 and the base 11. In this example, when the stator 25 is viewed along the axial direction of the stator 25, one and the other damping members 61 are disposed on both the left and right sides with respect to the axial line of the stator 25.
　各制振部材６１は、図１１に示すように、ベース１１の上面にボルト４４で固定されたベース側固定部６１ａと、ベース側固定部６１ａから第２の外周リング３１の周方向へ延びるステータ側固定部６１ｂとを有している。各ステータ側固定部６１ｂは、第２の外周リング３１の外周面に接触している。この例では、図１０に示すように、各制振部材６１がステータ２５の軸線方向の範囲全体にわたって配置されている。従って、この例では、各制振部材６１が、第２の外周リング３１の外周面だけでなく第１の外周リング３０の外周面にもステータ側固定部６１ｂを接触させた状態で、ステータ２５とベース１１との間に配置されている。各ステータ側固定部６１ｂは、第２の外周リング３１にボルト６２で固定されている。他の構成は、実施の形態１と同様である。 As shown in FIG. 11, each damping member 61 includes a base-side fixing portion 61a fixed to the upper surface of the base 11 with a bolt 44, and a stator extending in the circumferential direction of the second outer peripheral ring 31 from the base-side fixing portion 61a. Side fixing part 61b. Each stator side fixing portion 61 b is in contact with the outer peripheral surface of the second outer peripheral ring 31. In this example, as shown in FIG. 10, each damping member 61 is disposed over the entire axial range of the stator 25. Therefore, in this example, each damping member 61 is in a state where the stator side fixing portion 61b is in contact with not only the outer peripheral surface of the second outer peripheral ring 31 but also the outer peripheral surface of the first outer peripheral ring 30. And the base 11. Each stator side fixing portion 61 b is fixed to the second outer peripheral ring 31 with a bolt 62. Other configurations are the same as those in the first embodiment.
　このように、制振部材６１がステータ２５及びベース１１のそれぞれに直接固定されていても、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形を制振部材６１によって抑制することができ、ステータ２５自体の弾性変形による振動を効果的に抑制することができる。 Thus, even if the damping member 61 is directly fixed to each of the stator 25 and the base 11, the damping member 61 can suppress elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes. In addition, vibration due to elastic deformation of the stator 25 itself can be effectively suppressed.
　なお、上記の例では、各制振部材６１のステータ側固定部６１ｂが第１の外周リング３０及び第２の外周リング３１のそれぞれに接触しているが、第２の外周リング３１の外周面にのみ各制振部材６１のステータ側固定部６１ｂを接触させてもよい。 In the above example, the stator side fixing portion 61b of each damping member 61 is in contact with each of the first outer peripheral ring 30 and the second outer peripheral ring 31, but the outer peripheral surface of the second outer peripheral ring 31. Only the stator-side fixing portion 61b of each damping member 61 may be brought into contact with each other.
　また、上記の例では、制振部材６１の数が２つであるが、制振部材６１の数を、１つとしてもよいし、３つ以上としてもよい。 In the above example, the number of damping members 61 is two. However, the number of damping members 61 may be one, or may be three or more.
　実施の形態４．
　図１２は、この発明の実施の形態４による巻上機５を示す縦断面図である。また、図１３は、図１２のＸＩＩＩ－ＸＩＩＩ線に沿った断面図である。変形抑制体２３は、ステータ２５の軸線方向他端部に位置する第２の外周リング３１に固定された複数（この例では、２つ）のオイルダンパ（制振部材）６５と、各オイルダンパ６５が固定されているとともに、複数のボルト４４でベース１１に固定された共通の受け板（受け部材）６６とを有している。受け板６６の構成は、実施の形態１の受け板４２の構成と同様である。また、この例では、ステータ２５の軸線方向に沿ってステータ２５を見たとき、一方及び他方のオイルダンパ６５がステータ２５の軸線に対して左右両側に配置されている。さらに、この例では、図１３に示すように、各オイルダンパ６５の軸線方向がステータ２５の径方向となるように各オイルダンパ６５が配置されている。 Embodiment 4 FIG.
FIG. 12 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 4 of the present invention. FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. The deformation suppressing body 23 includes a plurality of (in this example, two) oil dampers (vibration control members) 65 fixed to the second outer peripheral ring 31 positioned at the other axial end of the stator 25, and each oil damper. 65 and a common receiving plate (receiving member) 66 fixed to the base 11 with a plurality of bolts 44. The configuration of the receiving plate 66 is the same as the configuration of the receiving plate 42 of the first embodiment. Further, in this example, when the stator 25 is viewed along the axial direction of the stator 25, one and the other oil dampers 65 are disposed on both the left and right sides with respect to the axis of the stator 25. Further, in this example, as shown in FIG. 13, the oil dampers 65 are arranged so that the axial direction of the oil dampers 65 is the radial direction of the stator 25.
　変形抑制体２３では、各オイルダンパ６５の上端部が第２の外周リング３１の外周面に固定され、各オイルダンパ６５の下端部が受け板６６の上面に固定されている。各オイルダンパ６５は、オイルダンパ６５内のオイルの抵抗力を受けながら伸縮される。各オイルダンパ６５には、図１２に示すように、各オイルダンパ６５の減衰力を制御するダンパ制御部６７が接続されている。第２の外周リング３１には、ステータ２５の振動を検出する振動センサ６８が設けられている。振動センサ６８からの情報は、ダンパ制御部６７へ送られる。ダンパ制御部６７は、振動センサ６８からの情報に基づいて、振動センサ６８で検出した振動を抑制する方向へ各オイルダンパ６５の減衰力を制御する。他の構成は、実施の形態１と同様である。 In the deformation suppressing body 23, the upper end portion of each oil damper 65 is fixed to the outer peripheral surface of the second outer peripheral ring 31, and the lower end portion of each oil damper 65 is fixed to the upper surface of the receiving plate 66. Each oil damper 65 is expanded and contracted while receiving the resistance force of the oil in the oil damper 65. As shown in FIG. 12, each oil damper 65 is connected to a damper control unit 67 that controls the damping force of each oil damper 65. The second outer peripheral ring 31 is provided with a vibration sensor 68 that detects the vibration of the stator 25. Information from the vibration sensor 68 is sent to the damper controller 67. The damper control unit 67 controls the damping force of each oil damper 65 in a direction to suppress the vibration detected by the vibration sensor 68 based on information from the vibration sensor 68. Other configurations are the same as those in the first embodiment.
　このような巻上機５では、第２の外周リング３１及びベース１１間に変形抑制体２３が連結され、変形抑制体２３に含まれる制振部材がオイルダンパ６５であるので、ステータ２５の弾性変形による振動をオイルダンパ６５の抵抗力によって減衰させることができ、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形を簡単な構成でかつ効果的に抑制することができる。 In such a hoisting machine 5, the deformation suppressing body 23 is connected between the second outer peripheral ring 31 and the base 11, and the vibration damping member included in the deformation suppressing body 23 is the oil damper 65. The vibration due to the deformation can be attenuated by the resistance force of the oil damper 65, and the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be effectively suppressed with a simple configuration.
　また、振動センサ６８が第２の外周リング３１に設けられ、ダンパ制御部６７が、振動センサ６８で検出した振動を抑制する方向へオイルダンパ６５の減衰力を制御するので、ステータ２５の弾性変形による振動をさらに確実に抑制することができる。 Further, since the vibration sensor 68 is provided on the second outer peripheral ring 31 and the damper control unit 67 controls the damping force of the oil damper 65 in a direction to suppress the vibration detected by the vibration sensor 68, the elastic deformation of the stator 25 is performed. The vibration due to can be further reliably suppressed.
　なお、上記の例では、オイルダンパ６５の減衰力が、振動センサ６８からの情報に基づいてダンパ制御部６７によって制御されているが、オイルダンパ６５の減衰力を制御しなくてもステータ２５の弾性変形を抑制することができるので、振動センサ６８及びダンパ制御部６７はなくてもよい。 In the above example, the damping force of the oil damper 65 is controlled by the damper control unit 67 based on information from the vibration sensor 68. However, the damping force of the stator 25 can be controlled without controlling the damping force of the oil damper 65. Since elastic deformation can be suppressed, the vibration sensor 68 and the damper control unit 67 may not be provided.
　また、上記の例では、オイルダンパ６５の数が２つであるが、オイルダンパ６５の数を、１つとしてもよいし、３つ以上としてもよい。 In the above example, the number of oil dampers 65 is two, but the number of oil dampers 65 may be one, or may be three or more.
　実施の形態５．
　図１４は、この発明の実施の形態５による巻上機５を示す縦断面図である。また、図１５は図１４のＸＶ－ＸＶ線に沿った断面図、図１６は図１４の矢印ＸＶＩに沿って見たときのステータ２５を示す図である。さらに、図１７は、図１５のステータ２５の要部を示す拡大図である。変形抑制体２３は、図１４及び図１６に示すように、第１の外周リング３０の外周部を囲む第１の制振部材７１と、第２の外周リング３１の外周部を囲む第２の制振部材７２とを有している。第１及び第２の制振部材７１，７２のそれぞれは、図１５及び図１７に示すように、ステータ２５の周方向へ並ぶ複数の制振用構成部材７０１を有している。 Embodiment 5 FIG.
FIG. 14 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 5 of the present invention. 15 is a cross-sectional view taken along the line XV-XV in FIG. 14, and FIG. 16 is a view showing the stator 25 when viewed along the arrow XVI in FIG. Further, FIG. 17 is an enlarged view showing a main part of the stator 25 of FIG. As shown in FIGS. 14 and 16, the deformation suppressing body 23 includes a first damping member 71 that surrounds the outer peripheral portion of the first outer peripheral ring 30, and a second second member that surrounds the outer peripheral portion of the second outer peripheral ring 31. And a vibration damping member 72. Each of the first and second vibration damping members 71 and 72 includes a plurality of vibration damping component members 701 arranged in the circumferential direction of the stator 25 as shown in FIGS. 15 and 17.
　第１の制振部材７１では、互いに隣り合う２つの制振用構成部材７０１の一部同士がステータ２５の径方向について重なっている。また、第１の制振部材７１では、互いに隣り合う制振用構成部材７０１同士の重なった部分をボルト７３でまとめて締結することにより、各制振用構成部材７０１が第１の外周リング３０に固定されている。 In the first vibration damping member 71, a part of two adjacent vibration damping structural members 701 overlap each other in the radial direction of the stator 25. Further, in the first vibration damping member 71, the vibration damping structural members 701 are fastened together by bolts 73 by fastening the overlapping portions of the vibration damping structural members 701 adjacent to each other. It is fixed to.
　第２の制振部材７２では、互いに隣り合う２つの制振用構成部材７０１の一部同士がステータ２５の径方向について重なっている。また、第２の制振部材７２では、互いに隣り合う制振用構成部材７０１同士の重なった部分をボルト７３でまとめて締結することにより、各制振用構成部材７０１が第２の外周リング３１に固定されている。 In the second vibration damping member 72, a part of two adjacent vibration damping structural members 701 overlap each other in the radial direction of the stator 25. Further, in the second vibration damping member 72, the vibration damping component members 701 are fastened together with the bolts 73 by fastening the overlapping portions of the vibration damping component members 701 adjacent to each other so that each vibration damping component member 701 is in the second outer ring 31. It is fixed to.
　各制振用構成部材７０１は、金属製の第１の接続プレート（接続部材）７０２と、金属製の第２の接続プレート（接続部材）７０３と、粘性及び弾性を持ち、第１の接続プレート７０２と第２の接続プレート７０３との間に挟まれた粘弾性体７０４とを有している。 Each vibration damping component 701 has a first connection plate (connection member) 702 made of metal, a second connection plate (connection member) 703 made of metal, and viscosity and elasticity, and the first connection plate And viscoelastic body 704 sandwiched between 702 and second connection plate 703.
　第１及び第２の接続プレート７０２，７０３は、ステータ２５の周方向に沿って配置されている。第１及び第２の接続プレート７０２，７０３のそれぞれの周方向一端部同士は、ステータ２５の径方向について互いに対向している。 The first and second connection plates 702 and 703 are arranged along the circumferential direction of the stator 25. The circumferential end portions of the first and second connection plates 702 and 703 are opposed to each other in the radial direction of the stator 25.
　粘弾性体７０４は、第１の接続プレート７０２の周方向一端部と第２の接続プレート７０３の周方向一端部との間にステータ２５の径方向について挟まれている。第１の接続プレート７０２及び第２の接続プレート７０３は、粘弾性体７０４を介して互いに接続されている。この例では、粘弾性体７０４は、第１の接続プレート７０２及び第２の接続プレート７０３に接着剤で固定されている。粘弾性体７０４を構成する材料としては、例えばゴム又は樹脂等が挙げられる。 The viscoelastic body 704 is sandwiched between the circumferential end of the first connection plate 702 and the circumferential end of the second connection plate 703 in the radial direction of the stator 25. The first connection plate 702 and the second connection plate 703 are connected to each other via a viscoelastic body 704. In this example, the viscoelastic body 704 is fixed to the first connection plate 702 and the second connection plate 703 with an adhesive. Examples of the material constituting the viscoelastic body 704 include rubber or resin.
　第１の制振部材７１では、第１及び第２の接続プレート７０２，７０３のそれぞれの周方向他端部が第１の外周リング３０にボルト７３で固定されている。第２の制振部材７２では、第１及び第２の接続プレート７０２，７０３のそれぞれの周方向他端部が第２の外周リング３１にボルト７３で固定されている。ステータ２５の径方向の寸法が変化するステータ２５の弾性変形は、第１及び第２の制振部材７１，７２のそれぞれにおける主に粘弾性体７０４の粘弾性変形によって抑制される。他の構成は、実施の形態１と同様である。 In the first vibration damping member 71, the other circumferential ends of the first and second connection plates 702 and 703 are fixed to the first outer ring 30 with bolts 73. In the second damping member 72, the other circumferential ends of the first and second connection plates 702 and 703 are fixed to the second outer ring 31 with bolts 73. The elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes is suppressed mainly by the viscoelastic deformation of the viscoelastic body 704 in each of the first and second damping members 71 and 72. Other configurations are the same as those in the first embodiment.
　このような巻上機５では、第１及び第２の制振部材７１，７２がステータ２５の外周部を囲んでいるので、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形を部分的に相殺させながら、ステータ２５の弾性変形による振動を効果的に抑制することができる。これにより、巻上機５の騒音をより確実に低減することができる。 In such a hoisting machine 5, since the first and second damping members 71 and 72 surround the outer periphery of the stator 25, the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes is partially Therefore, the vibration caused by the elastic deformation of the stator 25 can be effectively suppressed. Thereby, the noise of the hoisting machine 5 can be reduced more reliably.
　なお、上記の例では、第１及び第２の制振部材７１，７２のそれぞれがステータ２５に設けられているが、第１及び第２の制振部材７１，７２のいずれかのみをステータ２５に設けてもよい。 In the above example, each of the first and second damping members 71 and 72 is provided in the stator 25. However, only one of the first and second damping members 71 and 72 is provided in the stator 25. May be provided.
　実施の形態６．
　図１８は、この発明の実施の形態６による巻上機５を示す縦断面図である。また、図１９は、図１８の矢印ＸＩＸに沿って見たときのステータ２５を示す図である。変形抑制体２３は、ステータ２５の外周部に設けられた複数の制振部材８１を有している。各制振部材８１は、ステータ２５の周方向について互いに間隔を置いて配置されている。また、各制振部材８１は、ステータ２５の軸線方向に沿って配置されている。 Embodiment 6 FIG.
FIG. 18 is a longitudinal sectional view showing a hoisting machine 5 according to Embodiment 6 of the present invention. FIG. 19 is a diagram showing the stator 25 when viewed along the arrow XIX in FIG. The deformation suppressing body 23 includes a plurality of vibration damping members 81 provided on the outer peripheral portion of the stator 25. The damping members 81 are arranged at intervals from each other in the circumferential direction of the stator 25. Further, each damping member 81 is disposed along the axial direction of the stator 25.
　各制振部材８１の軸線方向一端部は図１９に示すように、第１の外周リング３０の外周面にボルト８２で固定され、各制振部材８１の軸線方向他端部は第２の外周リング３１の外周面にボルト８３で固定されている。これにより、各制振部材８１は、ステータ２５の軸線方向両端部を結んでいる。 As shown in FIG. 19, one end of each damping member 81 in the axial direction is fixed to the outer peripheral surface of the first outer ring 30 with a bolt 82, and the other end in the axial direction of each damping member 81 is the second outer periphery. It is fixed to the outer peripheral surface of the ring 31 with a bolt 83. Thereby, each damping member 81 connects both ends of the stator 25 in the axial direction.
　図２０は、図１９の制振部材８１を示す斜視図である。制振部材８１は、ステータ２５の径方向について互いに対向するそれぞれ金属製の第１の接続プレート（接続部材）８０１及び第２の接続プレート（接続部材）８０２と、粘性及び弾性を持ち、第１の接続プレート８０１と第２の接続プレート８０２との間に挟まれた粘弾性体８０３とを有している。この例では、第２の接続プレート８０２が第１の接続プレート８０１よりもステータ２５の径方向外側に位置している。また、この例では、第１の接続プレート８０１の全面に粘弾性体８０３が重なり、粘弾性体８０３の全面に第２の接続プレート８０２が重なっている。第１及び第２の接続プレート８０１，８０２は、粘弾性体８０３を介して互いに接続されている。この例では、粘弾性体８０３は、第１の接続プレート８０１及び第２の接続プレート８０２に接着剤で固定されている。粘弾性体８０３を構成する材料としては、例えばゴム又は樹脂等が挙げられる。他の構成は、実施の形態１と同様である。 FIG. 20 is a perspective view showing the vibration damping member 81 of FIG. The damping member 81 has a first connection plate (connection member) 801 and a second connection plate (connection member) 802 made of metal, which face each other in the radial direction of the stator 25, and have viscosity and elasticity. A viscoelastic body 803 sandwiched between the connection plate 801 and the second connection plate 802. In this example, the second connection plate 802 is located on the radially outer side of the stator 25 than the first connection plate 801. In this example, the viscoelastic body 803 overlaps the entire surface of the first connection plate 801, and the second connection plate 802 overlaps the entire surface of the viscoelastic body 803. The first and second connection plates 801 and 802 are connected to each other via a viscoelastic body 803. In this example, the viscoelastic body 803 is fixed to the first connection plate 801 and the second connection plate 802 with an adhesive. Examples of the material constituting the viscoelastic body 803 include rubber or resin. Other configurations are the same as those in the first embodiment.
　このような巻上機５では、各制振部材８１がステータ２５の軸線方向両端部を結んでいるので、ステータ２５の軸線方向両端部のうち、第１の支持部１２に固定された端部だけでなく、第１の支持部１２から離れた端部においても、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形を抑制することができる。 In such a hoisting machine 5, each damping member 81 connects both ends in the axial direction of the stator 25, so that the end fixed to the first support portion 12 among the both ends in the axial direction of the stator 25. In addition, elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be suppressed not only at the end portion away from the first support portion 12.
　即ち、第１の支持部１２に固定されたステータ２５の端部では、第１の支持部１２によりステータ２５の形状が維持されやすい。従って、第１の支持部１２で弾性変形しにくいステータ２５の端部に繋がった各制振部材８１によって、第１の支持部１２から離れたステータ２５の端部を押さえることができ、第１の支持部１２から離れたステータ２５の端部でもステータ２５の弾性変形を抑制することができる。これにより、巻上機５の騒音をより確実に低減することができる。 That is, at the end portion of the stator 25 fixed to the first support portion 12, the shape of the stator 25 is easily maintained by the first support portion 12. Therefore, each damping member 81 connected to the end of the stator 25 that is not easily elastically deformed by the first support 12 can press the end of the stator 25 away from the first support 12. The elastic deformation of the stator 25 can be suppressed even at the end of the stator 25 away from the support portion 12. Thereby, the noise of the hoisting machine 5 can be reduced more reliably.
　なお、上記の例では、第１の接続プレート８０１の全面に粘弾性体８０３が重なっているが、第１の接続プレート８０１の一部にのみ粘弾性体８０３を重ねてもよい。 In the above example, the viscoelastic body 803 overlaps the entire surface of the first connection plate 801, but the viscoelastic body 803 may be overlapped only on a part of the first connection plate 801.
　実施の形態７．
　図２１は、この発明の実施の形態７による巻上機５を示す縦断面図である。また、図２２は、図２１の矢印ＸＸＩＩに沿って見たときのステータ２５を示す図である。変形抑制体２３は、ステータ２５の外周部に設けられた複数の制振部材９１を有している。各制振部材９１は、ステータ２５の周方向について互いに間隔を置いて配置されている。 Embodiment 7 FIG.
FIG. 21 is a longitudinal sectional view showing the hoist 5 according to Embodiment 7 of the present invention. 22 is a diagram showing the stator 25 when viewed along the arrow XXII in FIG. The deformation suppressing body 23 has a plurality of vibration damping members 91 provided on the outer peripheral portion of the stator 25. The vibration damping members 91 are arranged at intervals from each other in the circumferential direction of the stator 25.
　各制振部材９１の一端部は図２２に示すように、第１の外周リング３０の外周面にボルト９２で固定され、各制振部材９１の他端部は第２の外周リング３１の外周面にボルト９３で固定されている。これにより、各制振部材９１は、ステータ２５の軸線方向両端部を結んでいる。 As shown in FIG. 22, one end of each damping member 91 is fixed to the outer peripheral surface of the first outer ring 30 with a bolt 92, and the other end of each damping member 91 is the outer periphery of the second outer ring 31. The surface is fixed with bolts 93. Thus, each damping member 91 connects both ends of the stator 25 in the axial direction.
　各制振部材９１の一端部の位置は、制振部材９１の他端部の位置に対してステータ２５の周方向についてずれている。また、各制振部材９１は、第１の外周リング３０に固定された第１の軸方向部９１ａと、第２の外周リング３１に固定された第２の軸方向部９１ｂと、第１及び第２の軸方向部９１ａ，９１ｂのそれぞれの端部を繋ぐ繋ぎ部９１ｃとを有している。第１及び第２の軸方向部９１ａ，９１ｂのそれぞれはステータ２５の軸線方向に沿って配置され、繋ぎ部９１ｃはステータ２５の周方向に沿って配置されている。 The position of one end portion of each damping member 91 is shifted in the circumferential direction of the stator 25 with respect to the position of the other end portion of the damping member 91. Each damping member 91 includes a first axial portion 91 a fixed to the first outer peripheral ring 30, a second axial portion 91 b fixed to the second outer peripheral ring 31, It has the connection part 91c which connects each edge part of 2nd axial direction part 91a, 91b. Each of the first and second axial portions 91 a and 91 b is disposed along the axial direction of the stator 25, and the connecting portion 91 c is disposed along the circumferential direction of the stator 25.
　図２３は、図２２の制振部材９１を示す斜視図である。制振部材９１は、ステータ２５の径方向について互いに対向するそれぞれ金属製の第１の接続プレート（接続部材）９０１及び第２の接続プレート（接続部材）９０２と、粘性及び弾性を持ち、第１の接続プレート９０１と第２の接続プレート９０２との間に挟まれた粘弾性体９０３とを有している。この例では、第２の接続プレート９０２が第１の接続プレート９０１よりもステータ２５の径方向外側に位置している。また、この例では、第１の接続プレート９０１の全面に粘弾性体９０３が重なり、粘弾性体９０３の全面に第２の接続プレート９０２が重なっている。従って、第１の軸方向部９１ａ、第２の軸方向部９１ｂ及び繋ぎ部９１ｃが、第１の接続プレート９０１、第２の接続プレート９０２及び粘弾性体９０３のそれぞれの一部によりそれぞれ構成されている。第１及び第２の接続プレート９０１，９０２は、粘弾性体９０３を介して互いに接続されている。この例では、粘弾性体９０３は、第１の接続プレート９０１及び第２の接続プレート９０２に接着剤で固定されている。粘弾性体９０３を構成する材料としては、例えばゴム又は樹脂等が挙げられる。他の構成は、実施の形態１と同様である。 FIG. 23 is a perspective view showing the vibration damping member 91 of FIG. The vibration damping member 91 has a first connection plate (connection member) 901 and a second connection plate (connection member) 902 made of metal, which are opposed to each other in the radial direction of the stator 25, and have viscosity and elasticity. A viscoelastic body 903 sandwiched between the connection plate 901 and the second connection plate 902. In this example, the second connection plate 902 is located on the radially outer side of the stator 25 than the first connection plate 901. In this example, the viscoelastic body 903 overlaps the entire surface of the first connection plate 901, and the second connection plate 902 overlaps the entire surface of the viscoelastic body 903. Accordingly, the first axial direction portion 91a, the second axial direction portion 91b, and the connecting portion 91c are respectively configured by a part of the first connection plate 901, the second connection plate 902, and the viscoelastic body 903. ing. The first and second connection plates 901 and 902 are connected to each other via a viscoelastic body 903. In this example, the viscoelastic body 903 is fixed to the first connection plate 901 and the second connection plate 902 with an adhesive. Examples of the material constituting the viscoelastic body 903 include rubber or resin. Other configurations are the same as those in the first embodiment.
　このような巻上機５では、ステータ２５の軸線方向両端部を結ぶ制振部材９１の一端部の位置が、制振部材９１の他端部の位置に対してステータ２５の周方向についてずれているので、実施の形態６のように、第１の支持部１２で弾性変形しにくいステータ２５の端部に繋がった各制振部材９１によって、第１の支持部１２から離れたステータ２５の端部を押さえることができる。また、ステータ２５の周方向についてもステータ２５の弾性変形を各制振部材９１によって抑制することができる。これにより、ステータ２５の径方向の寸法が変化するステータ２５の弾性変形をさらに確実に抑制することができ、巻上機５の騒音をさらに確実に低減することができる。 In such a hoisting machine 5, the position of one end portion of the damping member 91 that connects both axial ends of the stator 25 is shifted in the circumferential direction of the stator 25 with respect to the position of the other end portion of the damping member 91. Therefore, as in the sixth embodiment, the end of the stator 25 separated from the first support portion 12 by each damping member 91 connected to the end portion of the stator 25 that is not easily elastically deformed by the first support portion 12. You can hold the part. Further, the elastic deformation of the stator 25 can also be suppressed by the vibration damping members 91 in the circumferential direction of the stator 25. Thereby, the elastic deformation of the stator 25 in which the radial dimension of the stator 25 changes can be further reliably suppressed, and the noise of the hoisting machine 5 can be further reliably reduced.
　なお、上記の例では、各制振部材９１の繋ぎ部９１ｃがステータ２５の周方向に沿って配置されているが、ステータ２５の周方向に対して傾斜させて繋ぎ部９１ｃを配置してもよい。また、第１及び第２の軸方向部９１ａ，９１ｂのそれぞれと繋ぎ部９１ｃとの接続部分が緩やかに曲がっていてもよい。さらに、直線に沿った帯状の制振部材９１をステータ２５の軸線方向に対して傾斜させながらステータ２５の外周部に沿わせて配置していてもよい。 In the above example, the connecting portions 91c of the vibration damping members 91 are arranged along the circumferential direction of the stator 25. However, the connecting portions 91c may be arranged so as to be inclined with respect to the circumferential direction of the stator 25. Good. Moreover, the connection part of each of the 1st and 2nd axial direction parts 91a and 91b and the connection part 91c may be bent gently. Further, the band-shaped damping member 91 along the straight line may be disposed along the outer peripheral portion of the stator 25 while being inclined with respect to the axial direction of the stator 25.
　また、上記の例では、第１の接続プレート９０１の全面に粘弾性体９０３が重なっているが、第１の接続プレート９０１の一部にのみ粘弾性体９０３を重ねてもよい。 In the above example, the viscoelastic body 903 overlaps the entire surface of the first connection plate 901. However, the viscoelastic body 903 may be overlapped only on a part of the first connection plate 901.
　また、実施の形態２及び５～７では、振動を吸収しやすい制振合金によって制振部材を構成してもよい。このようにすれば、同一の材料で制振部材を製造することができ、制振部材の構成をさらに簡単にすることができる。 In the second and fifth to seventh embodiments, the damping member may be made of a damping alloy that easily absorbs vibration. If it does in this way, a damping member can be manufactured with the same material, and the composition of a damping member can be further simplified.
　また、各上記実施の形態のうち、２以上の実施の形態での変形抑制体２３を組み合わせてもよい。 Moreover, you may combine the deformation | transformation suppression body 23 in two or more embodiment among each said embodiment.

Claims (8)

  1. 　第１の支持部と、上記第１の支持部から水平方向へ離れた第２の支持部とを有する支持台、
    　上記第１の支持部及び上記第２の支持部に回転自在に支持された回転軸、
    　上記第１の支持部と上記第２の支持部との間に配置され、上記回転軸に固定された駆動シーブ、
    　上記第１の支持部に固定された筒状のステータと、上記ステータの内側で上記回転軸に固定され、上記ステータに対して回転されるロータとを有し、上記第１の支持部からみて上記駆動シーブ側と反対側に配置されたモータ、及び
    　上記ステータに設けられた制振部材を有し、上記ステータの径方向の寸法が変化する上記ステータの弾性変形を抑制する変形抑制体
    　を備えているエレベータ用巻上機。     A support base having a first support portion and a second support portion horizontally separated from the first support portion;
    A rotating shaft rotatably supported by the first supporting portion and the second supporting portion;
    A drive sheave disposed between the first support portion and the second support portion and fixed to the rotating shaft;
    A cylindrical stator fixed to the first support portion; and a rotor fixed to the rotating shaft inside the stator and rotated with respect to the stator; and viewed from the first support portion. A motor disposed on a side opposite to the drive sheave side; and a vibration suppressing member provided on the stator, and a deformation suppressing body that suppresses elastic deformation of the stator in which a radial dimension of the stator changes. Elevator hoisting machine.
  2. 　上記支持台は、上記モータの下方に配置されて上記第１の支持部及び上記第２の支持部が固定されたベースをさらに有し、
    　上記変形抑制体は、上記ステータ及び上記ベース間に連結されている請求項１に記載のエレベータ用巻上機。     The support base further includes a base disposed below the motor and to which the first support portion and the second support portion are fixed.
    The elevator hoist according to claim 1, wherein the deformation suppressing body is connected between the stator and the base.
  3. 　上記制振部材は、上記ステータの外周部を囲んでいる請求項１に記載のエレベータ用巻上機。 The elevator hoisting machine according to claim 1, wherein the damping member surrounds an outer peripheral portion of the stator.
  4. 　上記制振部材は、上記ステータの外周部に設けられて上記ステータの軸線方向両端部を結んでいる請求項１に記載のエレベータ用巻上機。 The elevator hoisting machine according to claim 1, wherein the damping member is provided on an outer peripheral portion of the stator and connects both ends of the stator in the axial direction.
  5. 　上記制振部材の一端部の位置は、上記制振部材の他端部の位置に対して上記ステータの周方向についてずれている請求項４に記載のエレベータ用巻上機。 The elevator hoisting machine according to claim 4, wherein the position of one end portion of the damping member is shifted in the circumferential direction of the stator with respect to the position of the other end portion of the damping member.
  6. 　上記制振部材は、複数の接続部材と、各上記接続部材間に挟まれた粘弾性体とを有している請求項１～請求項５のいずれか一項に記載のエレベータ用巻上機。 The elevator hoisting machine according to any one of claims 1 to 5, wherein the damping member includes a plurality of connecting members and a viscoelastic body sandwiched between the connecting members. .
  7. 　上記制振部材は、オイルダンパである請求項２に記載のエレベータ用巻上機。 The elevator hoisting machine according to claim 2, wherein the vibration damping member is an oil damper.
  8. 　上記ステータに設けられた振動センサ、及び
    　上記振動センサで検出した振動を抑制する方向へ上記オイルダンパの減衰力を制御するダンパ制御部
    　を備えている請求項７に記載のエレベータ用巻上機。     The elevator hoisting machine according to claim 7, further comprising: a vibration sensor provided in the stator; and a damper control unit that controls a damping force of the oil damper in a direction to suppress vibration detected by the vibration sensor.
PCT/JP2014/050640 2014-01-16 2014-01-16 Hoist for elevator WO2015107643A1 (en)

Priority Applications (3)

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CN201480073333.5A CN105916794B (en) 2014-01-16 2014-01-16 Elevator hoist
PCT/JP2014/050640 WO2015107643A1 (en) 2014-01-16 2014-01-16 Hoist for elevator
JP2015557628A JP6223475B2 (en) 2014-01-16 2014-01-16 Elevator hoisting machine

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Publication number Priority date Publication date Assignee Title
JP6670863B2 (en) * 2018-01-25 2020-03-25 本田技研工業株式会社 Rotating electric machine

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH06298474A (en) * 1993-04-20 1994-10-25 Mitsubishi Electric Corp Device for fixing hoist vibration-proofing unit
JPH11165970A (en) * 1997-12-02 1999-06-22 Toshiba Corp Winding machine of elevator
FR2918361A1 (en) * 2007-07-03 2009-01-09 Leroy Somer Moteurs Lift's cable driving electrical machine for building, has brakes arranged on side of rolling bearings opposite to stator or rotor assembly and fixed on one of two flanges, and plate-shaped crossheads fixed near lower edge of flanges

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4732577B2 (en) * 2000-11-24 2011-07-27 東芝エレベータ株式会社 Elevator car rescue device
JP2010127314A (en) * 2008-11-25 2010-06-10 Sinfonia Technology Co Ltd Torque transmission device
JP5955563B2 (en) * 2012-01-05 2016-07-20 株式会社東芝 Hoisting machine and rotating electric machine equipped with the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06298474A (en) * 1993-04-20 1994-10-25 Mitsubishi Electric Corp Device for fixing hoist vibration-proofing unit
JPH11165970A (en) * 1997-12-02 1999-06-22 Toshiba Corp Winding machine of elevator
FR2918361A1 (en) * 2007-07-03 2009-01-09 Leroy Somer Moteurs Lift's cable driving electrical machine for building, has brakes arranged on side of rolling bearings opposite to stator or rotor assembly and fixed on one of two flanges, and plate-shaped crossheads fixed near lower edge of flanges

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