WO2010105313A1 - Mécanisme inertiel d'auto-équilibrage - Google Patents

Mécanisme inertiel d'auto-équilibrage Download PDF

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Publication number
WO2010105313A1
WO2010105313A1 PCT/BA2010/000002 BA2010000002W WO2010105313A1 WO 2010105313 A1 WO2010105313 A1 WO 2010105313A1 BA 2010000002 W BA2010000002 W BA 2010000002W WO 2010105313 A1 WO2010105313 A1 WO 2010105313A1
Authority
WO
WIPO (PCT)
Prior art keywords
balancing
masses
housing
plane
inertial
Prior art date
Application number
PCT/BA2010/000002
Other languages
English (en)
Inventor
Safedin Zelic
Original Assignee
Safedin Zelic
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 Safedin Zelic filed Critical Safedin Zelic
Publication of WO2010105313A1 publication Critical patent/WO2010105313A1/fr

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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
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
    • F16F15/167—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring
    • F16F15/173—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring provided within a closed housing
    • 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

Definitions

  • This invention is related to the field of vibration of mechanical rotary system caused by unbalanced masses.
  • Inertial auto balancing mechanism is doing that, friction produced by centrifugal forces are minimized and it is contained inside roller bearings on one side while in the other side, effect of inertial forces a increased dramatically by adding arm to this force and creating inertial moment which easily can overcame friction in the bearing and also friction of viscosity of the fluid.
  • This auto balancing mechanism can be used on every kind of rotating machines and can be designed for any rotational speed or any amount of unbalanced mass.
  • Figure 1 Inertial auto balancing mechanism attached to unbalanced rotary system.
  • Figure 2 Forces, moments and kinematics in inertial auto balancing mechanism attached to the unbalanced rotary system.
  • Figure 4 Position of two balancing masses in rotary system where unbalanced mass is not present.
  • Figure 6 Three-dimensional sketch of inertial auto balancing mechanism in case where unbalancing mass of rotational system is not in same plane with balancing masses of mechanism (dynamic balancing) while both housing of mechanism are positioned on side relative to plane of unbalanced mass.
  • Figure 7 Three-dimensional sketch of inertial auto balancing mechanism in case where unbalancing mass of rotational system is not in same plane with balancing masses of mechanism (dynamic balancing) while one housing of mechanism is on one side relative to plane of unbalanced mass and second housing is on other side relative to plane of unbalanced mass.
  • Figure 8 Three-dimensional sketch of inertial auto balancing mechanism with one housing in case where unbalancing mass is not in same plane with balancing masses of mechanism (dynamic unbalance).
  • Inertial auto balancing mechanism in self-contained manner balancing one unbalanced rotational (1) system of any rotational speed or any unbalanced mass (2) even if unbalanced masses (2) changing position or value during rotation in way that center of mass is align with rotational center of rotational system in every time, automatically, by mechanism itself.
  • Auto balancing mechanism ( Figure 1) consists of: housing (3), two or more balancing masses (5) and (6), shaft (9) and fluid (4) of proper viscosity. Balancing masses (5) and (6) are on same distance from the center of rotation on a same plane normal to the axis of rotation and connected via bearings (7) and (8) to the shaft (9) of balancing mechanism, Shaft (9) of balancing mechanism is aligned with rotational center of the unbalanced system (1) that has to be balanced. There are no torque or rotation that are transmitted to the balancing masses (5) and (6) via shaft that they are connected. Rotation of balancing masses (5) and (6) are caused with viscosity forces of the fluid (4) contained inside housing (3).
  • Amount of inertial moment (ImI and Im2) is proportional to the weight of unbalanced mass (2) ,so when unbalanced mass (2) is bigger inertial moment (ImI and Im2) of balancing masses (5) and (6) is higher and accordingly moving balancing mass toward each other , angel between them become smaller, they combined center of weight is shifted out of center of rotation in direction opposite of unbalanced mass (2) thereby creating balance between unbalanced (2) and balanced masses (5) and (6) , When balance is established inertial forces (IfI and If2) and inertial moment (ImI and Im2) of balancing masses disappear, so they stop to move toward each other and keeping that position by help of centrifugal forces of each balancing mass.
  • Mechanism that consist of one housing is capable to provide equilibrium of masses if unbalanced and balanced masses are in same plane, while mechanism with two functionally connected housing placed on shaft of rotation are capable to balance rotary system where unbalanced mass is not in same plane, even if unbalanced mass moving axially in any direction.
  • mechanism with one housing can not establish state of balance , because one another parameter will emerge in form of moment Meg created by couple of centrifugal forces of unbalanced and balanced masses ( Figure 8) which will cause vibration .
  • Inertial auto balancing mechanism consisted of one housing and positioned in plane of unbalanced mass provide static balancing (in plane balance) Figure 1, while mechanism consisted of two housing positioned in different plane than plane of unbalanced mass provide dynamic balancing (out of plane balancing) Figure 6 and 7.
  • Inertial auto balancing mechanism for dynamic balancing consist of two functionally interconnected housing placed in two parallel planes different than plane of unbalanced mass.
  • auto balancing mechanism should not just sense amount and position of unbalanced mass bat also it should sense axial position of unbalanced mass and according to all that parameters it should place balancing masses in both housing proportional and simultaneously.
  • Figure 7 showing position of balancing masses in case of dynamic balancing where both housings are placed on one side relative to plane of unbalanced mass.
  • balancing masses of one housing are shifted in opposite direction of balancing masses of other housing in way that balancing masses of housing more distant from plane of unbalanced mass are shifted in direction of position of unbalanced mass while balancing masses of housing close to plane of unbalanced mass are shifted in opposite direction of position of unbalanced mass.
  • While mechanism is not in motion, balancing masses are attached to shaft in way that they support each other against gravity moment and closing angel relative to each other so they can easily engage in low rotational speed. Otherwise for engagement, mechanism will need high rotational speed and vibration will occur in low rotational speed.
  • Inertial auto balancing mechanism is designed in way that attachment of balancing masses to shaft providing free motion of balancing masses in same plane normal to axis of rotation. Otherwise, they centrifugal forces will produce moment around axis normal to axis of rotation and this moment will cause vibration even if there is no unbalanced mass in system.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Balance (AREA)

Abstract

Mécanisme inertiel d'auto-équilibrage comportant : un boîtier destiné au mécanisme (3), deux masses (5,6) d'équilibrage, un support constitué d'un arbre (9) et un fluide (4) de viscosité appropriée, les deux masses d'équilibrage étant reliées de manière à tourner librement et indépendamment autour de l'arbre dans un même plan et sous l'influence d'un moment d'inertie les masses d'équilibrage étant rapprochées l'une de l'autre de telle sorte que leur centre de gravité commun soit écarté du centre de rotation dans une direction opposée à la position d'un balourd (2), créant ainsi un équilibre entre le balourd et les masses d'équilibrage.
PCT/BA2010/000002 2009-03-20 2010-03-19 Mécanisme inertiel d'auto-équilibrage WO2010105313A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BABAP092704A 2009-03-20
BA092704 2009-03-20
BABAP102780A 2010-03-05
BA102780 2010-03-05

Publications (1)

Publication Number Publication Date
WO2010105313A1 true WO2010105313A1 (fr) 2010-09-23

Family

ID=42237326

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BA2010/000002 WO2010105313A1 (fr) 2009-03-20 2010-03-19 Mécanisme inertiel d'auto-équilibrage

Country Status (1)

Country Link
WO (1) WO2010105313A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178916A (en) * 1962-02-26 1965-04-20 Frame Machine for washing and centrifuging textile
GB1092188A (en) * 1965-04-20 1967-11-22 Frame Sa Improvements in or relating to clothes washing and centrifuging machines
JPH03111096A (ja) * 1989-09-26 1991-05-10 Sharp Corp アンバランス修正装置
DE19718321C1 (de) * 1997-04-30 1998-10-29 Miele & Cie Verfahren zum Auswuchten von rotierenden Körpern
DE10145310A1 (de) * 2000-09-27 2002-07-18 Barmag Barmer Maschf Galette
GB2388849A (en) * 2002-05-22 2003-11-26 Dyson Ltd Automatic balancing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178916A (en) * 1962-02-26 1965-04-20 Frame Machine for washing and centrifuging textile
GB1092188A (en) * 1965-04-20 1967-11-22 Frame Sa Improvements in or relating to clothes washing and centrifuging machines
JPH03111096A (ja) * 1989-09-26 1991-05-10 Sharp Corp アンバランス修正装置
DE19718321C1 (de) * 1997-04-30 1998-10-29 Miele & Cie Verfahren zum Auswuchten von rotierenden Körpern
DE10145310A1 (de) * 2000-09-27 2002-07-18 Barmag Barmer Maschf Galette
GB2388849A (en) * 2002-05-22 2003-11-26 Dyson Ltd Automatic balancing device

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