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DE728941C - Device for the simultaneous damping of torsional and bending vibrations of rotating bodies - Google Patents

Device for the simultaneous damping of torsional and bending vibrations of rotating bodies

Info

Publication number
DE728941C
DE728941C DEB177826D DEB0177826D DE728941C DE 728941 C DE728941 C DE 728941C DE B177826 D DEB177826 D DE B177826D DE B0177826 D DEB0177826 D DE B0177826D DE 728941 C DE728941 C DE 728941C
Authority
DE
Germany
Prior art keywords
torsional
rotating bodies
bending vibrations
plane
simultaneous damping
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.)
Expired
Application number
DEB177826D
Other languages
German (de)
Inventor
Dr-Ing Hermann Stumpp
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.)
BMW Flugmotorenbau GmbH
Original Assignee
BMW Flugmotorenbau GmbH
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 BMW Flugmotorenbau GmbH filed Critical BMW Flugmotorenbau GmbH
Priority to DEB177826D priority Critical patent/DE728941C/en
Application granted granted Critical
Publication of DE728941C publication Critical patent/DE728941C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Description

Einrichtung zur gleichzeitigen Dämpfung von Dreh- und Biegeschwingungen sich drehender Körper Wenn ein umlaufender Körper Schwingungen ausführt, können dies zwei Arten von Schwingungen sein, 'nämlich Drehschwingungen in der Drehebene oder Biegeschwingungen in einer Achsebene. Das Mittel zur, Dämpfung derartiger Schwingungen ist der bekannte Pendelschwingungsdämpfer, der derart :abgestimmt ist, daß er bei seinem Eigenschwingungszustand Kräfte und Momente ausübt, die den erregenden Kräften entgegenwirken. Wenn ,ein Körper beide Schwingungsarten gleichzeitig rausführt, was z. B. bei Brennkraftmaschinen häufig der Fall ist, so müssen. auch zwei Arten von Schwingungsdämpfern vorgesehen sein. Es hat sich jedoch als .möglich erwiesen, die Einrichtung zur Schwingungsdämpfung dadurch zu vereinfachen, daß man beide Sch-,vingungsarten gleichzeitig mit einem einzigen Schwingungssystem bekämpft. Von diesem allgemeinen Gedanken geht auch die vorliegende Erfindung aus. Sie ;gibt einen Weg ,an, -der neben dem Vorteil .einer wesentlich vereinfachten Herstellung noch den Vorteil der guten Vorabstimmung der für die Schwingungsdämpfung nötigen Größen bietet, so daß die rechnungsmäßig zu erwartende und die tatsächliche Wirkung bestens übereinstimmen. Gemäß der Erfindung wird in bekannter Weise nur eine einzige Pendelmasse verwandt, die mindestens zwei Kugelpfannen aufweist, mit denen sie unter Vermittlung von Kugeln auf dem ebenfalls mit Pfannen versehenen, Wellenfeil gelagert ist. Hierbei führt die Pendelmasse in der Drehebene des Wellenteiles gegenüber diesem keine Drehbewegung aus.Device for the simultaneous damping of torsional and bending vibrations revolving body When a revolving body vibrates, it can these are two types of vibrations, namely torsional vibrations in the plane of rotation or bending vibrations in an axial plane. The means of damping such vibrations is the well-known pendulum vibration damper, which is so: tuned that it is at its natural state of oscillation exerts forces and moments that affect the exciting forces counteract. If a body brings out both types of vibration at the same time, what z. B. is often the case with internal combustion engines, so must. also two types be provided by vibration dampers. However, it has been shown to be possible to simplify the device for vibration damping by having both types of vibration fought simultaneously with a single vibration system. From this general The present invention is also based on ideas. She; gives a way to, -der In addition to the advantage of a significantly simplified production, the advantage of offers good preliminary adjustment of the sizes necessary for vibration damping, so that the expected and the actual effect match perfectly. According to the invention, only a single pendulum mass is used in a known manner, which has at least two ball sockets with which they are mediated by balls is mounted on the wave file, which is also provided with pans. This leads the Pendulum mass in the plane of rotation of the shaft part opposite this no rotation.

Die Erfindung sei an Hand der Abb. i bis 3 erläutert, die einen Schwingungsdämpfer gemäß der Erfindung in .einer Ansicht und zwei Schnitten zeigen. Die schwingende Masse bildet das Schwunggewicht einer Welle, z. B. der Welle einer Brennkraftmaschine. Sie ist im Ausführungsbeispiel in die beiden Teilinassen a und 3 ,aufgelöst, die beiderseits der Kurbelwange liegen und mit Schrauben zusammengespannt sind. Zur Lagerung der Pendelmasse dienen Kugeln .l, deren - Pfannen in die Lagerplatten q eingearbeitet sind. Die untere Lagerplatte wird von der Kurbelwange gehalten, während die obere Lagerplatte durch die Schrauben ö ,am Schwunggewicht befestigt ist. Im vorliegenden Falle ist eine Auflagerung auf drei in einem Winkel zueinander :angeordneten Kugeln vorgesehen. Die Kugelpfannen selbst ermöglichen eine Bewegung der Schwunggewichte sowohl in der Drehebene wie in einer Achsebenie. Dementsprechend ist auch zwischen der Kurbelwange und den beiden Teilen des Schwunggewichtes ein Raum solcher Größe frei gelassen, daß das Schwunggewicht den nötigen Schwingungsausschlag ,ausführen kann.The invention will be explained with reference to Figs. I to 3, which have a vibration damper show according to the invention in .einer view and two sections. The swinging one Mass forms the flywheel of a wave, e.g. B. the shaft of an internal combustion engine. In the exemplary embodiment, it is divided into the two partial masses a and 3, the lie on both sides of the crank web and are clamped together with screws. To the Storage of the pendulum mass are balls .l, whose - pans in the bearing plates q are incorporated. The lower bearing plate is held by the crank arm while the upper bearing plate is attached to the swing weight by the screws ö. in the The present case is a support on three at an angle to each other: arranged Balls provided. The ball sockets themselves allow the swing weights to move both in the plane of rotation and in an axial plane. Accordingly, is also between the crank web and the two parts of the swing weight a space of this size left free so that the swing weight can execute the necessary swing deflection can.

Claims (1)

PATENTANSPRÜCHE: i. Einrichtung zur gleichzeitigen Dämpfung von Dreh- und Biegeschwingungen sich drehender Körper mit Hilfe von in der Drehebene und in einer Achsebene pendelnden Massen, dadurch gekennzeichnet, daß die Pendelmasse, die gegenüber dem Wellenteil, an dem sie gelabert ist, in dessen Drehebene keine Drehbewegung ausführt, mindestens zwei Kugelpfanne: aufweist, mit denen sie unter Vermittlung von Kugeln auf dem ebenfalls mit Pfannen versehenen Wellenteil ,gelagert ist. z. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß drei im Winkel zueinander angeordnete Pfannen und Kugeln vorgesehen sind.PATENT CLAIMS: i. Device for the simultaneous damping of rotary and bending vibrations of rotating bodies with the aid of in the plane of rotation and in masses oscillating in an axial plane, characterized in that the pendulum mass, the opposite of the shaft part on which it was babbled, none in its plane of rotation Rotary movement executes at least two ball socket: with which they under Placement of balls on the shaft part, which is also provided with pans, stored is. z. Device according to claim i, characterized in that three at an angle pans and balls arranged to one another are provided.
DEB177826D 1937-03-21 1937-03-21 Device for the simultaneous damping of torsional and bending vibrations of rotating bodies Expired DE728941C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB177826D DE728941C (en) 1937-03-21 1937-03-21 Device for the simultaneous damping of torsional and bending vibrations of rotating bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB177826D DE728941C (en) 1937-03-21 1937-03-21 Device for the simultaneous damping of torsional and bending vibrations of rotating bodies

Publications (1)

Publication Number Publication Date
DE728941C true DE728941C (en) 1942-12-07

Family

ID=7008273

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB177826D Expired DE728941C (en) 1937-03-21 1937-03-21 Device for the simultaneous damping of torsional and bending vibrations of rotating bodies

Country Status (1)

Country Link
DE (1) DE728941C (en)

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