CH213983A - Vibration damper. - Google Patents
Vibration damper.Info
- Publication number
- CH213983A CH213983A CH213983DA CH213983A CH 213983 A CH213983 A CH 213983A CH 213983D A CH213983D A CH 213983DA CH 213983 A CH213983 A CH 213983A
- Authority
- CH
- Switzerland
- Prior art keywords
- vibration damper
- cover plates
- damper according
- dependent
- vibrating bodies
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P33/00—Preparation of steroids
- C12P33/02—Dehydrogenating; Dehydroxylating
-
- 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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/087—Units comprising several springs made of plastics or the like material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Building Environments (AREA)
- Vibration Prevention Devices (AREA)
Description
Schwingungsdämpfer. 'Um die Übertragung von Erschütterungen und Geräuschen von Maschinen oder derglei chen auf die Fundamente und die Gebäude zu vermeiden, benützt man Schwingungs dämpfer, die unter den Maschinen eingebaut werden. Bisher hat man in der Schwingungs technik im allgemeinen nur Korkplatten oder Stahlfedern für solche Zwecke benutzt, wobei die ersteren hauptsächlich nur durch ihre dämpfenden Eigenschaften und die letzteren nur durch ihre Nachgiebigkeit zu wirken be stimmt waren.
Durch die Erfindung soll nun ein Schwin gungsdämpfer geschaffen werden, bei dem die Schwingkörper sowohl durch ihre Nachgiebig keit, als auch durch ihre frequenzunabhängig dämpfenden Eigenschaften zu wirken bestimmt sind, wobei die Schwingkörper zwischen zwei Deckplatten so eingespannt sind, dass sie bei schwingender Belastung mit ihren Endflächen gegenüber den Deckplatten Kriechbewegungen ausüben können.
Zur Verbindung der Deckplatten mit den Schwingkörpern sind vorteilhaft elastische Organe wie Zuggurte, Federn oder auch starre Verbindungsorgane mit elastischen Zwischen lagen verwendet. In den Fig. 1 bis 3 der beiliegenden Zeich nung sind drei Ausführungsbeispiele des Er- findungsgegenstandes dargestellt.
Fig. 1 zeigt einen Schwingungsdämpfer, bei dem zwischen zwei Platten a ein Schwing körper b angeordnet ist. Der Schwingkörper besteht aus Buna, Gummi oder dergleichen und hat zylindrische bezw. tonnenförmige Ge stalt. An den Deckplatten wird er nur durch Reibung gehalten. Die beiden Deckplatten selbst werden durch vier oder mehr elastische Gurten c zusammengehalten, so dass der Schwingkörper b unter Vorspannung liegt. Beim Aufbringen der statischen Last werden die elastischen Gurten entspannt, so dass der Schwingkörper b sich frei verformen kann.
Bei Betriebsstörungen, beim Durchfahren von Resonanzgebieten oder dergleichen treten je doch die Zuggurte c wieder in Wirkung und verhindern zu grosse Ausschläge bezw. ein Abheben der Deckplatten ra von dem Schwing körper b. In Fig. 2 ist ein anderes Ausführungs beispiel dargestellt, bei dem zwischen den zwei Deckplatten a zwei Schwingkörper b an geordnet sind. Auch diese Körper bestehen aus Gummi, Grummimischungen oder ähnlichen Stoffen. Sie können durch punktförmige, die Kriechbewegung nicht verhindernde Befesti gungsmittel mit den Platten verbunden sein. An Stelle der Zuggurte sind hier Schrauben federn d verwendet, die beide Platten zu sammenhalten.
In Fig. 3 ist eine weitere Ausführungs form dargestellt, bei der ebenfalls Schwing körper b zwischen den zwei Deckplatten a angeordnet sind. Die obere Deckplatte ist je doch mit der untern nicht unmittelbar, son dern über eine elastische Zwischenlage e aus Isoliermaterial verbunden. Auf dieser Zwi schenlage liegt eine weitere Platte g, die durch Schraubenbolzen f' oder dergleichen starr mit der untern Deckplatte verbunden ist.
Die Wirkungsweise dieser Ausführungs form ist die gleiche wie die der beiden an dern. Bei statischer Belastung des Schwin gungsdämpfers wird die elastische Zwischen lage e entspannt, weil sie sich ausdehnt. Bei Störungen oder zu grossen Ausschlägen tritt jedoch die Zwischenlage wieder in Wirkung und begrenzt durch die starren Bolzen f' den Ausschlag der obern Deckplatte.
Die beschriebenen Schwingungsdämpfer eignen sich für alle Aufgaben der Schall dämpfung und der Schwingungstechnik, ins besondere als Unterlage unter Maschinen, Geräte oder dergleichen.
Vibration damper. '' In order to avoid the transmission of vibrations and noises from machines or the like to the foundations and buildings, vibration dampers are used which are installed under the machines. So far, one has generally only used cork plates or steel springs for such purposes in vibration technology, the former being mainly effective only through their damping properties and the latter being determined only by their flexibility.
With the invention, a vibration damper is to be created in which the vibrating bodies are determined to act both by their flexibility and by their frequency-independent damping properties, the vibrating bodies being clamped between two cover plates in such a way that they with their vibrating load End faces against the cover plates can exert creeping movements.
To connect the cover plates to the vibrating bodies, elastic organs such as tension belts, springs or rigid connecting organs with elastic intermediate layers are advantageously used. In FIGS. 1 to 3 of the accompanying drawing, three exemplary embodiments of the subject matter of the invention are shown.
Fig. 1 shows a vibration damper in which a vibrating body b is arranged between two plates a. The oscillating body consists of Buna, rubber or the like and has cylindrical BEZW. barrel shape. It is only held on the cover plates by friction. The two cover plates themselves are held together by four or more elastic straps c, so that the oscillating body b is pretensioned. When the static load is applied, the elastic belts are relaxed so that the vibrating body b can freely deform.
In the event of malfunctions, when driving through resonance areas or the like, the tension belts c come into effect again and prevent excessive deflections BEZW. lifting of the cover plates ra from the oscillating body b. In Fig. 2, another embodiment is shown, for example, in which between the two cover plates a two oscillating body b are arranged on. These bodies are also made of rubber, rubber compounds or similar substances. They can be connected to the panels by punctiform fasteners that do not prevent the creeping movement. Instead of the tension straps, coil springs are used here, which hold both plates together.
In Fig. 3, a further embodiment is shown form, in which also vibrating body b are arranged between the two cover plates a. The upper cover plate is, however, not directly connected to the lower, son countries via an elastic intermediate layer e made of insulating material. On this inter mediate layer is another plate g, which is rigidly connected to the lower cover plate by bolts f 'or the like.
The mode of operation of this embodiment is the same as that of the two others. With static load on the vibration damper, the elastic intermediate layer e is relaxed because it expands. In the event of malfunctions or excessive deflections, however, the intermediate layer comes into effect again and limits the deflection of the upper cover plate by the rigid bolts f '.
The vibration dampers described are suitable for all tasks of sound absorption and vibration technology, especially as a base under machines, devices or the like.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR717206A FR1252611A (en) | 1956-06-22 | 1956-06-22 | Improvements in the oxidation processes of steroid compounds of the 3-keto-delta 4 type |
Publications (1)
Publication Number | Publication Date |
---|---|
CH213983A true CH213983A (en) | 1941-03-31 |
Family
ID=8703247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH213983D CH213983A (en) | 1956-06-22 | 1940-01-19 | Vibration damper. |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH213983A (en) |
FR (1) | FR1252611A (en) |
NL (1) | NL96643B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105697A (en) * | 1962-09-14 | 1963-10-01 | Craig Systems Inc | Shock-absorbing skid |
EP0324693A1 (en) * | 1988-01-15 | 1989-07-19 | Hutchinson | Elastic suspension supports |
FR2626050A1 (en) * | 1988-01-15 | 1989-07-21 | Hutchinson | Elastic suspension supports |
FR2663099A1 (en) * | 1990-06-07 | 1991-12-13 | Dunlop Ltd | ELASTIC SUPPORT COMPRISING AN ELASTOMER LAYER AND TWO END PIECES, IN PARTICULAR FOR A MARINE ENGINE. |
DE102007043320A1 (en) | 2007-09-12 | 2009-04-23 | Krämer, Albert | Device for damping oscillations in e.g. hot air curtain units comprises elastic profiles forming an interlocking or frictionally engaged connection with objects |
-
0
- NL NL96643D patent/NL96643B/xx unknown
-
1940
- 1940-01-19 CH CH213983D patent/CH213983A/en unknown
-
1956
- 1956-06-22 FR FR717206A patent/FR1252611A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105697A (en) * | 1962-09-14 | 1963-10-01 | Craig Systems Inc | Shock-absorbing skid |
EP0324693A1 (en) * | 1988-01-15 | 1989-07-19 | Hutchinson | Elastic suspension supports |
FR2626050A1 (en) * | 1988-01-15 | 1989-07-21 | Hutchinson | Elastic suspension supports |
US5102107A (en) * | 1988-01-15 | 1992-04-07 | Hutchinson | Resilient supports for shock absorbing systems |
FR2663099A1 (en) * | 1990-06-07 | 1991-12-13 | Dunlop Ltd | ELASTIC SUPPORT COMPRISING AN ELASTOMER LAYER AND TWO END PIECES, IN PARTICULAR FOR A MARINE ENGINE. |
DE102007043320A1 (en) | 2007-09-12 | 2009-04-23 | Krämer, Albert | Device for damping oscillations in e.g. hot air curtain units comprises elastic profiles forming an interlocking or frictionally engaged connection with objects |
DE202007018895U1 (en) | 2007-09-12 | 2009-09-03 | Krämer, Albert | Device for damping vibrations and uses of the device |
Also Published As
Publication number | Publication date |
---|---|
FR1252611A (en) | 1961-02-03 |
NL96643B (en) |
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