[go: up one dir, main page]

WO2017100870A1 - Neutraliseur dynamique réglable pour machines électriques tournantes et systèmes comprenant des machines électriques tournantes - Google Patents

Neutraliseur dynamique réglable pour machines électriques tournantes et systèmes comprenant des machines électriques tournantes Download PDF

Info

Publication number
WO2017100870A1
WO2017100870A1 PCT/BR2015/050252 BR2015050252W WO2017100870A1 WO 2017100870 A1 WO2017100870 A1 WO 2017100870A1 BR 2015050252 W BR2015050252 W BR 2015050252W WO 2017100870 A1 WO2017100870 A1 WO 2017100870A1
Authority
WO
WIPO (PCT)
Prior art keywords
neutralizer
dynamic
electric machines
damping
rotary electric
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/BR2015/050252
Other languages
English (en)
Portuguese (pt)
Inventor
Vinicius SELL GONÇALVES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEG Equipamentos Eletricos SA
Original Assignee
WEG Equipamentos Eletricos SA
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 WEG Equipamentos Eletricos SA filed Critical WEG Equipamentos Eletricos SA
Priority to PCT/BR2015/050252 priority Critical patent/WO2017100870A1/fr
Publication of WO2017100870A1 publication Critical patent/WO2017100870A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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 belongs to the field of means for reducing or suppressing vibration and / or noise of rotating electric machines, more specifically systems comprising one or more rotating electric machines.
  • the present invention relates to an adjustable dynamic neutralizer for rotating electric machines, notably for the reduction of vibration in systems equipped with rotating electric machines (or simply electric motors), specifically for the reduction of radial vibrations in systems of this nature.
  • the dynamic neutralizer according to the invention is provided with a mass element arranged around the electric motor shaft and fixed internally to the motor, by means of elements composed of fixing and support means, damping means, elastic means and regulating means.
  • systems contemplating rotating electric machines are systems composed of at least one electric motor and at least one structural element such as an electric motor assembly and mounting bracket, or an assembly. formed by an electric motor coupled to a water drive pump, or to an assembly formed by an electric motor coupled to a water drive pump on a lift tower and so on.
  • One of the possible techniques is to act directly on the excitation, reducing its amplitude or changing its frequency.
  • Another way used to attenuate vibrations is by acting on the system, more specifically the structure, either by varying stiffness and / or mass, or by introducing damping into the system.
  • a secondary mechanical system to the primary (or main) system whose vibration is to be reduced, for example a secondary mechanical system with springs or dampers or a combination thereof.
  • US Patent Document No. 1,834,860 which describes an electric motor subjected to pulsating torque, provided with an annular mass disposed on the motor shaft and fixed by resilient means. to a stationary part thereof to reduce the vibration of this stationary part.
  • US 1,834,860 solution is limited to torsional or angular vibrations from engine torque pulses, and there is no provision for the variation (increase or decrease) of attenuation according to the application. Moreover, it merely attenuates such vibrations only from the static part of the engine, not caring about the system to which the engine may possibly be connected.
  • Figure 1 shows a perspective view of an electric motor having a dynamic neutralizer according to the invention
  • Figure 2 shows a perspective view of the electric motor of Figure 1 without the front cover for visualization of its interior and the dynamic neutralizer components according to the invention
  • Figure 3 shows a side view of a longitudinal or axial section of the motor of Figure 1;
  • Figure 4 shows a front view of a cross-sectional or radial section of the dynamic neutralizer components according to the invention
  • Figure 5 presents the detail A of the enlarged figure 4.
  • Figure 6 shows a perspective view of the components of the dynamic neutralizer according to the invention.
  • Figure 7 shows a schematic view of a dynamic neutralizer variant according to the invention.
  • Figure 8 Graph of dynamic neutralizer vibration tests according to the invention showing the RMS vibration of a non-neutralizer motor assembly
  • Figure 9 Graph of the dynamic neutralizer vibration tests according to the invention showing the RMS vibration of an installed but unregulated neutralizer motor assembly
  • Figure 10 Graph of the dynamic neutralizer vibration tests according to the invention showing the RMS vibration of an installed and regulated neutralizer motor assembly.
  • the present invention relates to a dynamic neutralizer (100) disposed within an electric motor (M), wherein said electric motor (M) is basically provided with caps (T), housing (C), stator (E ) and rotor (R).
  • the dynamic neutralizer (100) according to the invention comprises a ground element (110) which is disposed around the rotor (R) and fixed internally to the housing (C) or internally to the engine cover (T). (M) or in any suitable position provided that it is internally with the electric motor (M), provided that it meets the condition that it does not touch any moving part of the electric motor (M).
  • the fixing of the ground element (110) to the interior of the electric motor (M) takes place by means of the fixing elements which are provided with adjusting means (120), abutment means (125), means (130), resilient means (140) and optionally damping means (150), preferably arranged in parallel with the elastic means (140).
  • Each of the securing means (120) pierces a support means (130) and has at its end a stop means (125) which abuts an elastic means (140), wherein the elastic means (140 ) is inserted in a suitable housing at the outer perimeter of the ground element (110) and at the other end in a housing of the support means (130).
  • damping means (150) there may be at least one damping means (150) combined with the elastic means (140) or even just one damping means (150) per dynamic neutralizer component (100).
  • Each of the adjusting means (120) has at least one portion provided with an external thread to be threaded into an internal thread of the corresponding support means (130).
  • Each of the elastic means (140) is therefore disposed between the mass element (110) and the support means (130), wherein the rotation of the regulating means (120) presses (or relieves) the abutment means (125) which in turn compresses (or relieves) the resilient means (140), allowing the transverse stiffness of the corresponding resilient means (140) to be altered by compressing or relieving it.
  • the regulating means (120) has no direct mechanical contact with the ground element (1 10).
  • the adjusting means (120) allow the displacement of the mass element (110) in at least one of the axes (x, y) independently of each other.
  • adjusting means for example a fastener in the direction of a horizontal axis (x) and at least one fastener in the direction of a vertical axis (y), or in three radial directions in equal angular spacing
  • elastic means (140) is a resilient element, preferably a spring, of metallic or synthetic material, depending on the application.
  • the damping means 150 is a resilient element, preferably a damper, of synthetic or natural material, depending on the application.
  • the frequency of the dynamic neutralizer (100) can be varied. within a range sufficiently wide to allow fine tuning to control vibration at the excitation frequency to which the neutralizer is rated. [040] This makes the dynamic neutralizer 100 according to the invention efficient and usable in a wide range of applications.
  • the dynamic neutralizer (100) allows the adjustment of its components to fit more than one natural frequency of the electric motor assembly (M) and structure in which it is located. installed or mounted.
  • the dynamic neutralizer 100 is intended to solve resonance problems regardless of the origin of the excitement.
  • the dynamic neutralizer (100) is sized (mass, stiffness, and damping) to produce an anti- resonance at that same frequency.
  • the same mass and spring (and possibly damper) assembly can be used for exact fine tuning and / or to counteract other natural frequencies, avoiding mass or elastic rework. (140) or in the damping means (150).
  • the test was performed using a Motor assembly (ABNT 200 - 2-pole - 60 Hz Frame) with a frequency inverter capable of driving the motor in question and a motor mounting base and with constructive characteristics to force a frequency. assembly within the operating range of the engine.
  • a Motor assembly (ABNT 200 - 2-pole - 60 Hz Frame) with a frequency inverter capable of driving the motor in question and a motor mounting base and with constructive characteristics to force a frequency. assembly within the operating range of the engine.
  • Assay data acquisition was performed by accelerometer vibration data collection equipment (a commercial solution known to one of ordinary skill in the art).
  • the engine speed was varied from 0 to 3600 rpm to identify a natural or resonant frequency of the set (motor + base).
  • a natural modal frequency of 31.10 Hz in the vertical forward direction was identified by experimental modal analysis.
  • Example 3 with neutralizer and with regulation
  • the experimental natural frequency was closer to the calculated natural frequency of the neutralizer, further lowering the vibration level to 0.86mm / s (RMS), as can be inferred from the graph in figure 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

La présente invention concerne un neutraliseur dynamique (100) comprenant un élément de masse (110), au moins un moyen de réglage (120) et au moins un moyen élastique (140), éventuellement aussi ou au moins un moyen d'amortissement (150), le moyen de réglage (120) favorisant la variation de la rigidité du moyen élastique (140) et/ou d'amortissement (150) de manière à faire varier la fréquence naturelle du neutraliseur dynamique (100) pour la commande de la vibration dans la fréquence d'excitation tant d'un moteur électrique (M) que d'un ensemble auquel il est accouplé, indépendamment de l'origine d'excitation.
PCT/BR2015/050252 2015-12-14 2015-12-14 Neutraliseur dynamique réglable pour machines électriques tournantes et systèmes comprenant des machines électriques tournantes Ceased WO2017100870A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BR2015/050252 WO2017100870A1 (fr) 2015-12-14 2015-12-14 Neutraliseur dynamique réglable pour machines électriques tournantes et systèmes comprenant des machines électriques tournantes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2015/050252 WO2017100870A1 (fr) 2015-12-14 2015-12-14 Neutraliseur dynamique réglable pour machines électriques tournantes et systèmes comprenant des machines électriques tournantes

Publications (1)

Publication Number Publication Date
WO2017100870A1 true WO2017100870A1 (fr) 2017-06-22

Family

ID=59055454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2015/050252 Ceased WO2017100870A1 (fr) 2015-12-14 2015-12-14 Neutraliseur dynamique réglable pour machines électriques tournantes et systèmes comprenant des machines électriques tournantes

Country Status (1)

Country Link
WO (1) WO2017100870A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108039795A (zh) * 2018-01-08 2018-05-15 台州锐祥机械设备有限公司 一种新能源汽车电机减震装置
CN112928870A (zh) * 2021-02-06 2021-06-08 深圳盈特创智能科技有限公司 一种可抑制直流无刷高速电机谐振的控制装置及其方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482124A (en) * 1977-10-07 1984-11-13 General Electric Company Torsional vibration isolating motor mounting arrangement and method of making the same
US5969446A (en) * 1998-03-26 1999-10-19 Satcon Technology Corporation Flywheel permanent magnet machine
US8469826B2 (en) * 2011-09-27 2013-06-25 Caterpillar Inc. Radial piston damped torsional coupling and machine using same
US20140111039A1 (en) * 2012-10-18 2014-04-24 Siemens Industry, Inc. Radial magnetic vibration damping apparatus, bearing support assemblies, and operational methods
CN204030824U (zh) * 2014-05-15 2014-12-17 哈尔滨电机厂有限责任公司 立式水轮发电机上机架减振结构
CN204089537U (zh) * 2014-08-18 2015-01-07 浙江鸿达集团温岭市大丰电机有限公司 一种三相异步电动机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482124A (en) * 1977-10-07 1984-11-13 General Electric Company Torsional vibration isolating motor mounting arrangement and method of making the same
US5969446A (en) * 1998-03-26 1999-10-19 Satcon Technology Corporation Flywheel permanent magnet machine
US8469826B2 (en) * 2011-09-27 2013-06-25 Caterpillar Inc. Radial piston damped torsional coupling and machine using same
US20140111039A1 (en) * 2012-10-18 2014-04-24 Siemens Industry, Inc. Radial magnetic vibration damping apparatus, bearing support assemblies, and operational methods
CN204030824U (zh) * 2014-05-15 2014-12-17 哈尔滨电机厂有限责任公司 立式水轮发电机上机架减振结构
CN204089537U (zh) * 2014-08-18 2015-01-07 浙江鸿达集团温岭市大丰电机有限公司 一种三相异步电动机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108039795A (zh) * 2018-01-08 2018-05-15 台州锐祥机械设备有限公司 一种新能源汽车电机减震装置
CN112928870A (zh) * 2021-02-06 2021-06-08 深圳盈特创智能科技有限公司 一种可抑制直流无刷高速电机谐振的控制装置及其方法
CN112928870B (zh) * 2021-02-06 2021-10-29 深圳盈特创智能科技有限公司 一种可抑制直流无刷高速电机谐振的控制装置及其方法

Similar Documents

Publication Publication Date Title
RU2413803C2 (ru) Бытовой прибор
US8876092B2 (en) Motor mounting assembly with tunable vibration and noise reduction capabilities
CN109099112B (zh) 基于eap驱动的砂轮平衡吸振装置及方法
US7524112B2 (en) Bearing support with double stiffener
WO2016201890A1 (fr) Absorbeur de chocs composite à fréquence réglable
CN107289054A (zh) 一种三向刚度可调隔振器
WO2017100870A1 (fr) Neutraliseur dynamique réglable pour machines électriques tournantes et systèmes comprenant des machines électriques tournantes
TW201538857A (zh) 冷卻風扇的安裝構造
CN109356426B (zh) 调谐质量阻尼器
US20120011900A1 (en) Laundry machine
JP6002102B2 (ja) 回転電機の製造方法
CN102918752B (zh) 电动设备的振动阻尼
CN201068946Y (zh) 离心机减振装置
CN111765204A (zh) 一种悬挂式硅凝胶自适应调频吸振装置
BR102013026542A2 (pt) dispositivo neutralizador sintonizado de vibrações
JP6087566B2 (ja) 動吸振器を有するポンプ装置
CN116518028A (zh) 一种用于转子系统支承结构的吸振耗能装置
US1795313A (en) Electric-motor support
CN221171062U (zh) 一种暖通管安装用墙壁吊架
BR102015008590A2 (pt) ventoinha elétrica
CN119103288A (zh) 一种使用步进电机调节的频率可调动力吸振器及吸振方法
CN207267942U (zh) 衣物处理装置和用于衣物处理装置的排水泵组件
RU2656679C1 (ru) Виброизолятор с маятниковым подвесом
US20070170788A1 (en) Method and device for altering the vibration characteristic of a motor system
CN214314901U (zh) 一种便拆装型七相异步电机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15910429

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15910429

Country of ref document: EP

Kind code of ref document: A1