WO2012046834A1 - 制振構造 - Google Patents

制振構造 Download PDF

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Publication number
WO2012046834A1
WO2012046834A1 PCT/JP2011/073185 JP2011073185W WO2012046834A1 WO 2012046834 A1 WO2012046834 A1 WO 2012046834A1 JP 2011073185 W JP2011073185 W JP 2011073185W WO 2012046834 A1 WO2012046834 A1 WO 2012046834A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow body
vibration
promoting member
motion promoting
granular material
Prior art date
Application number
PCT/JP2011/073185
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
次橋　一樹
杉本　明男
浩一 本家
Original Assignee
株式会社神戸製鋼所
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 株式会社神戸製鋼所 filed Critical 株式会社神戸製鋼所
Priority to CN201180037217.4A priority Critical patent/CN103038539B/zh
Publication of WO2012046834A1 publication Critical patent/WO2012046834A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • F16F15/36—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
    • F16F15/363—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved using rolling bodies, e.g. balls free to move in a circumferential direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
    • F16F7/015—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand the particles being spherical, cylindrical or the like
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

Definitions

  • the present invention relates to gears and rotating shafts of motors and generators, stators and rotors of speed reducers, beam members of transportation equipment such as automobiles, and further to structures of buildings, large machine structures, and fixed structures thereof.
  • the present invention relates to a damping structure that can be effectively used for a structure or the like that generates vibration.
  • Examples of structures that generate vibration include gears and rotating shafts of motors and generators, stators and rotors of speed reducers, beam members of transportation equipment such as automobiles, and further, frame structures of buildings, large machine structures, There are such fixed structures.
  • a damping member configured by filling a hollow closed space with granular or powdery granular material in a structure that generates such vibrations, vibration suppression of the structural body is suppressed.
  • Vibration technology has already been developed. This technique is actually employed in a field that cannot be dealt with by a technique using a vibration damping material such as a viscoelastic body or a dynamic vibration absorber that has been widely used. Such a technique is also proposed as Patent Document 1, Patent Document 2, and the like.
  • Patent Document 1 is a technique intended to be applied to the reduction of motor vibration of various frequencies and level characteristics by fixing a vibration damping member filled with a granular material to a motor.
  • the technique described in Patent Document 2 is based on the meshing of the timing belt and the pulley by providing a cavity in the timing pulley that meshes with the timing belt and transmits power, and disposes the powder particles in the cavity. This technology attenuates vibrations. Thereby, the generated noise can be reduced.
  • the present invention has been made to solve these conventional problems. By promoting the movement of the granular material in the hollow body at the time of the occurrence of vibration, a sufficient damping effect even for vibration having a small amplitude. It is an object of the present invention to provide a vibration control structure capable of obtaining the above.
  • the present invention is a damping structure configured by providing a damping member on a structure to be damped, and the damping member is filled with a hollow body, leaving a partial space in the hollow body, A granular material that moves in the hollow body when the structure vibrates, and a motion promoting member that is provided in the hollow body and has a convex curved surface that promotes the movement of the granular material during the vibration. It is characterized by.
  • the motion promoting member has a circular cross section.
  • the motion promoting member is spherical or hemispherical.
  • the motion promoting member is hollow and the inside of the motion promoting member is filled with powder particles.
  • the motion promoting member is fixed inside the hollow body.
  • the structure is a cylindrical stator
  • the hollow body is an annular and flat hollow body provided on an end surface of the stator, and is formed by dividing the inside of the hollow body into a plurality of parts. It is preferable that each of the hollow spaces is filled with the powder and the movement promoting member is provided.
  • the granular material moves when subjected to vibration, and the granular material collides with the convex curved surface of the motion promoting member.
  • Each powder body receives forces in various directions and rebounds in various directions, so that the movement is further promoted.
  • the elastic deformation and friction due to the collision between the powder particles or the collision between the powder particles and the inner surface of the hollow portion become more intense and the vibrations compared to the case where the powder is simply filled inside the hollow body.
  • the energy absorption effect is also increased. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.
  • the motion promoting member has a circular cross section, elastic deformation and friction due to collision between the powder particles when subjected to vibration or collision between the powder particles and the inner surface of the hollow portion become more intense, and the vibration energy The absorption effect is further increased. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.
  • the vibration is reliably transmitted to the powder particles filled in the hollow body in various directions different from the vibration direction of the structure. Therefore, a stable damping effect can be expressed more reliably.
  • the granular material when the granular material is filled in the hollow motion promoting member, the granular material also collides with the inner surface of the motion promoting member and moves more violently. A vibration effect can be expressed.
  • the motion promoting member when the motion promoting member is fixed inside the hollow body, the motion promoting member functions to transmit the vibration damping effect to the hollow body, so that a more stable vibration damping effect can be exhibited.
  • the structure to be controlled is a stator
  • a damping effect can be surely exerted against vibrations generated in the stator of the motor or generator.
  • FIGS. 1 and 2 an embodiment in which a damping member 2 is attached to a side surface parallel to the vibration direction of the structure 1 that is a damping target will be described with reference to FIGS. 1 and 2.
  • the embodiment in which the damping member 2 is provided outside the structure 1 to be damped will be described in detail only for the embodiment in which the damping member 2 is attached to the side surface of the structure 1.
  • the damping effect can be exhibited even if the damping member 2 is attached to other parts such as the upper surface of the structure 1.
  • a vibration damping member 2 according to the embodiment shown in FIG. 1 includes a hollow body 3 formed of a rectangular parallelepiped container, a powder body 4 filled with a partial space 6 in the hollow body 3, and a hollow body 3 And a motion promoting member 5 having a circular cross section and a hollow shape provided so as to be covered with the granular material 4.
  • the granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration.
  • the motion promoting member 5 promotes the motion of the powder body 4 during vibration.
  • the hollow body 3, the granular material 4 and the motion promoting member 5 constituting the vibration damping member 2 are formed of a metal such as steel or aluminum, a resin such as plastic or rubber, a ceramic such as glass or a sintered body, or the like. Yes.
  • the structure 1 that is the object of vibration damping generates a magnetic force like a motor
  • the granular material 4 is formed of a non-magnetic material.
  • the powder body 4 may be either a powder body or a granular body. Since the granular material 4 is filled in the hollow body 3 leaving a partial space 6, it can move in the hollow body 3. Filling so that the powder particles 4 occupy around 75% of the volume in the hollow body 3 is preferable in that the powder particles 4 can be moved more efficiently in the hollow body 3.
  • the motion promoting member 5 has been described as having a circular cross section. However, if the convex surface 5a is formed on the surface of the motion promoting member 5, the motion promoting member 5 is spherical or cylindrical. Etc. Furthermore, the motion promoting member 5 may have a hemispherical shape, a conical shape, or the like. Further, the cross-sectional shape of the motion promoting member 5 does not necessarily have to be a perfect circle, and may be an ellipse, for example, or may be a polyhedron or a shape like a soccer ball as long as the shape is close to a sphere. Absent. In the present invention, a polyhedron shaped like a soccer ball also has a convex curved surface 5a.
  • the motion promoting member 5 is not limited to a hollow member, and may be a solid member having no internal space.
  • the motion promoting member 5 is preferably fixed inside the hollow body 3.
  • the motion promoting member 5 may be formed so as to protrude from the inner surface of the hollow body 3 to be integrated with the inner wall surface of the hollow body 3. . That is, the motion promoting member 5 may constitute the inner wall surface of the hollow body 3. 1 shows an embodiment in which the motion promoting member 5 is fixed to the hollow body 3, but the motion promoting member 5 is similar to the powder body 4 when the structure 1 is subjected to vibration. Alternatively, it may move within the hollow body 3. That is, the motion promoting member 5 may not be fixed to the hollow body 3.
  • the hollow body 3 and the motion promoting member 5 are also Vibrate.
  • the granular material 4 that has collided with the convex curved surface 5 a of the motion promoting member 5 moves in various directions within the hollow body 3. Furthermore, when the granular material 4 repeatedly collides with the inner surface of the hollow body 3 and the curved surface 5a of the movement promoting member 5, the movement of the granular material 4 becomes more intense.
  • the vibration energy of the structure 1 becomes elastic deformation of the particles (the granular material 4), the hollow body 3, and the motion promoting member 5, Dissipated by mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.
  • the motion promoting member 5 has a circular cross section and is hollow.
  • the motion promoting member 5 is hollow. Instead, it may be a so-called flake shape having a circular arc cross section or an S-shaped cross section. Even if the movement promoting member 5 has such a shape, the collided powder particles 4 move in various directions, and the vibration damping action can be efficiently expressed.
  • FIG. 2 The embodiment shown in FIG. 2 is similar to FIG. 1 in that the hollow body 3 is a rectangular parallelepiped container, the powder body 4 is filled in the hollow body 3 leaving a partial space 6, and the hollow body 3. And a motion promoting member 5 having a circular cross section and a hollow shape provided so as to be covered with the granular material 3 therein.
  • the granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration.
  • the motion promoting member 5 promotes the motion of the powder body 4 during vibration.
  • the powder body 4 is also filled in the internal space of the motion promoting member 5 having a circular cross section.
  • the motion promoting member 5 communicates with the inside of the hollow body 3, that is, when the motion promoting member 5 is a so-called open type, the granular material 4 forms a partial space 6 in the hollow body 3. If left and filled, the granular material 4 moves in the hollow body 3 during vibration and can also move in the movement promoting member 5.
  • open type motion promoting member 5 include a cylindrical motion promoting member 5 whose one end is not in contact with the inner surface of the hollow body 3.
  • the inside of the motion promoting member 5 is not in communication with the inside of the hollow body 3, that is, when the motion promoting member 5 is a so-called closed shape such as a spherical shape, the inside of the motion promoting member 5 is the hollow body 3. It is partitioned from the inside. Therefore, in order to move the granular material 4 even inside the motion promoting member 5, it is necessary to fill the granular material 4 while leaving a partial space 6 a inside the motion promoting member 5.
  • the powder body 4 vigorously moves in various directions not only inside the hollow body 3 but also inside the motion promoting member 5, so that the vibration damping action can be expressed more efficiently. it can.
  • FIGS. 3 and 4 is different from the embodiment shown in FIGS. 1 and 2 in which the damping member 2 is attached to the outside of the structure 1 to be damped, and the structure 1 to be damped.
  • the damping member 2 is built in the interior of the housing.
  • the vibration damping member 2 according to the embodiment shown in FIG. 3 includes a hollow body 3 in which a cylindrical space is formed, and a powder body 4 that is filled in the hollow body 3 leaving a partial space 6.
  • the hollow body 3 is provided with a motion promoting member 5 having a circular cross section and being provided so as to be covered with the powder body 3 in the hollow body 3.
  • the granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration.
  • the motion promoting member 5 promotes the motion of the powder body 4 during vibration.
  • the vibration damping member 2 shown in FIG. 3 is the same as the vibration damping member 2 shown in FIG. 1 in terms of the material, configuration and the like of the hollow body 3, the granular material 4 and the motion promoting member 5. 1 differs from the vibration damping member 2 shown in FIG. 1 only in that it is built in and the shape of the hollow body 3 is cylindrical.
  • the hollow body 3 and the motion promoting member 5 when vibration occurs in the structure 1 to be controlled, the hollow body 3 and the motion promoting member 5 also vibrate in the same direction as the structure 1.
  • the granular material 4 that has collided with the convex curved surface 5 a of the motion promoting member 5 moves in various directions within the hollow body 3. Furthermore, the granular material 4 that repeatedly collides with the inner surface of the hollow body 3 and the curved surface 5 a of the motion promoting member 5 moves more intensely inside the hollow body 3.
  • the vibration energy of the structure 1 becomes elastic deformation of the particles (the granular material 4), the hollow body 3, and the motion promoting member 5, Dissipated by mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.
  • the inner surface of the hollow body 3 is also a curved surface, vibrations in all directions such as up and down, left and right, and diagonal directions occur in the structure 1 to be controlled, and the vibration direction A stable effect is exhibited even when the value changes from moment to moment.
  • the vibration damping member 2 is built in the structure 1 similarly to FIG. 3, and includes a hollow body 3 in which a cylindrical space is formed, and a single hollow body 3.
  • the granular material 4 is also filled inside the motion promoting member having a circular cross section.
  • the vibration damping member 2 shown in FIG. 4 is the same as the vibration damping member 2 shown in FIG. 2 in terms of the material, configuration and the like of the hollow body 3, the granular material 4, and the motion promoting member 5. 2 differs from the vibration damping member 2 shown in FIG. 2 only in that the hollow body 3 has a cylindrical shape.
  • the powder body 4 vigorously moves in various directions not only inside the hollow body 3 but also inside the motion promoting material 5. Can be expressed more efficiently.
  • FIGS. 5 and 6 The embodiment shown in FIGS. 5 and 6 is an embodiment in which the present invention is applied to a stator (stator) of a motor.
  • the structural body 1 to be controlled is a cylindrical stator 1a.
  • the damping member 2 is attached to the end face having the larger vibration amplitude.
  • the hollow body 3 has a circular shape having substantially the same diameter as the cylindrical stator 1a.
  • the hollow body 3 has a flat shape, and the thickness of the hollow body 3 is sufficiently smaller than the thickness (axial length) of the stator 1a.
  • the hollow space of the hollow body 3 is partitioned by, for example, a plurality of partition walls 7 at equal intervals.
  • Each of the partitioned hollow spaces is filled with a granular material 4 leaving a partial space 6 and provided with a motion promoting member 5 having a circular cross section.
  • the inside of the motion promotion member 5 is filled with the granular material 4 leaving the partial space 6a as needed.
  • the granular material 4 is filled inside the motion promoting member 5 leaving a part of the space 6 a, but the granular material 4 is filled inside the movement promoting member 5. It is not necessary.
  • the annular hollow space 6 of the hollow body 3 is partitioned at equal intervals by 12 partition walls 7, but is not necessarily partitioned at equal intervals, The number of partition walls 7 may not be twelve.
  • annular member having a corrugated cross section having the functions of the partition wall 7 and the motion promoting member 5 may be provided in the annular hollow space of the hollow body 3.
  • the granular material 4 moves violently in various directions inside the hollow space of the hollow body 3 provided on the end face of the stator 1a.
  • the vibration energy of the stator 1a is dissipated by the elastic deformation of the granular material 4, the hollow body 3, and the motion promoting member 5 accompanying such movement of the granular material 4, and their mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
PCT/JP2011/073185 2010-10-08 2011-10-07 制振構造 WO2012046834A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201180037217.4A CN103038539B (zh) 2010-10-08 2011-10-07 减振结构

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010228137A JP2012082880A (ja) 2010-10-08 2010-10-08 制振構造
JP2010-228137 2010-10-08

Publications (1)

Publication Number Publication Date
WO2012046834A1 true WO2012046834A1 (ja) 2012-04-12

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CN (1) CN103038539B (zh)
WO (1) WO2012046834A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015027064A1 (en) * 2013-08-21 2015-02-26 General Electric Company Components having vibration dampers enclosed therein and method of forming such components
JP2020131318A (ja) * 2019-02-15 2020-08-31 株式会社豊田中央研究所 ボーリングバーおよびその製造方法

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DE102012108098A1 (de) 2012-08-31 2014-03-06 Sandvik Intellectual Property Ab Schwingungsgedämpftes Werkzeug
CN104196944B (zh) * 2014-08-27 2016-08-17 武汉科技大学 动力总成半主动颗粒阻尼橡胶悬置
JP6502212B2 (ja) * 2015-08-26 2019-04-17 京セラ株式会社 切削工具用ホルダおよび切削工具、並びにそれらを用いた切削加工物の製造方法
CN108049402B (zh) * 2018-01-25 2023-06-16 西南科技大学 预应力锚杆
EP3579388A1 (de) * 2018-06-05 2019-12-11 Siemens Aktiengesellschaft Elektrische maschine mit blechgehäuse, dessen hohlräume mit sand gefüllt sind
CN108970680A (zh) * 2018-07-26 2018-12-11 赣州市兴顺辉科技有限公司 一种建筑幕墙玻璃回收用多级粉碎装置
KR102421853B1 (ko) * 2020-06-08 2022-07-18 엘지전자 주식회사 흡진장치
CN113153947B (zh) * 2021-02-03 2022-07-26 厦门振为科技有限公司 一种轴系抱箍式颗粒阻尼减振器及设计方法

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JPH02286934A (ja) * 1989-04-27 1990-11-27 Hitachi Ltd 防振構造体
JPH06288463A (ja) * 1993-03-31 1994-10-11 Brother Ind Ltd タイミングプーリ
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JPH02286934A (ja) * 1989-04-27 1990-11-27 Hitachi Ltd 防振構造体
JPH06288463A (ja) * 1993-03-31 1994-10-11 Brother Ind Ltd タイミングプーリ
JP2005265108A (ja) * 2004-03-19 2005-09-29 Daiwarashi Co Ltd 防振パッド

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015027064A1 (en) * 2013-08-21 2015-02-26 General Electric Company Components having vibration dampers enclosed therein and method of forming such components
US9903434B2 (en) 2013-08-21 2018-02-27 General Electric Company Components having vibration dampers enclosed therein and methods of forming such components
EP3604739A1 (en) * 2013-08-21 2020-02-05 General Electric Company Components having vibration dampers enclosed therein and method of forming such components
JP2020131318A (ja) * 2019-02-15 2020-08-31 株式会社豊田中央研究所 ボーリングバーおよびその製造方法
JP7052754B2 (ja) 2019-02-15 2022-04-12 株式会社豊田中央研究所 ボーリングバーおよびその製造方法

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CN103038539A (zh) 2013-04-10
JP2012082880A (ja) 2012-04-26

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