EP0194995A3 - Vibrator - Google Patents
Vibrator Download PDFInfo
- Publication number
- EP0194995A3 EP0194995A3 EP86890055A EP86890055A EP0194995A3 EP 0194995 A3 EP0194995 A3 EP 0194995A3 EP 86890055 A EP86890055 A EP 86890055A EP 86890055 A EP86890055 A EP 86890055A EP 0194995 A3 EP0194995 A3 EP 0194995A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- mass
- gravity
- radial distance
- center
- unbalanced
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
- B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
- B06B1/162—Making use of masses with adjustable amount of eccentricity
- B06B1/164—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction
Abstract
Bei einem Vibrator mit rotierend antreibbarer Welle (1, 25), mit welcher wenigstens eine Hauptunwuchtmasse (3, 19) und um 180° gegenüber dieser versetzt wenigstens eine Ausgleichsunwuchtmasse (5, 23) drehsicher mit dieser ver bunden sind, erfolgt die Verstellung des Radialabstandes des Schwerpunktes der Ausgleichsunwuchtmasse (5, 23) durch die Wirkung der Fliehkraft, wobei der Gesamtschwerpunkt aller Unwuchtmassen (3, 19 und 5, 23) unter allen Betriebs bedingungen bzw. bei allen Drehzahlen in radialem Abstand in Richtung zur Hauptunwuchtmasse (3, 19) liegt. Die Verstellung dieser Ausgleichsunwuchtmasse (5, 23) erfolgt somit drehzahlabhängig, so daß bei Erhöhung der Drehzahl der Schwerpunkt der Ausgleichsunwuchtmasse (5, 23) nach außen wandert. Da die Ausgleichsunwuchtmasse (5, 23) um 180° gegenüber der Hauptunwuchtmasse (3, 19) versetzt ist, bewirkt eine Vergrößerung des Radialabstandes der Ausgleichsunwuchtmasse (5, 23) eine Verkleinerung des Radialabstandes des Gesamtschwerpunktes aller Unwuch tmassen (3, 19 und 5, 23) und es wird bei steigender Drehzahl der Vibratorwelle (1, 25) die Amplitude der Schwingungen verkleinert. In the case of a vibrator with a shaft that can be driven in rotation (1, 25) with which at least one main unbalanced mass (3, 19) and at least one offset by 180 ° with respect to this Balance unbalanced mass (5, 23) against rotation with this ver are bound, the radial distance of the Center of gravity of the balancing mass (5, 23) the effect of centrifugal force, the overall center of gravity all unbalanced masses (3, 19 and 5, 23) under all operating conditions conditions or at all speeds at a radial distance towards the main unbalanced mass (3, 19). The This balancing mass (5, 23) is adjusted thus speed-dependent, so that when the speed increases the center of gravity of the balancing mass (5, 23) hikes outside. Since the balancing mass (5, 23) around Is 180 ° offset from the main unbalanced mass (3, 19), causes an increase in the radial distance of the Compensating unbalanced mass (5, 23) a reduction in the Radial distance of the center of gravity of all imbalance masses (3, 19 and 5, 23) and it increases with increasing speed the vibrator shaft (1, 25) the amplitude of the vibrations downsized.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT716/85 | 1985-03-11 | ||
| AT71685 | 1985-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0194995A2 EP0194995A2 (en) | 1986-09-17 |
| EP0194995A3 true EP0194995A3 (en) | 1987-05-20 |
Family
ID=3497924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86890055A Withdrawn EP0194995A3 (en) | 1985-03-11 | 1986-03-11 | Vibrator |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0194995A3 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2861458A (en) * | 1953-01-31 | 1958-11-25 | Michran K Awedissjan | Vibration generator |
| US2921477A (en) * | 1956-12-31 | 1960-01-19 | Continental Oil Co | Constant force variable speed vibrator |
| DE1483413A1 (en) * | 1965-02-17 | 1969-09-18 | Voegele Ag J | Vibration exciter on a rotating shaft |
| US4341126A (en) * | 1977-02-25 | 1982-07-27 | Thomas Hubert E | Variable amplitude vibratory apparatus |
-
1986
- 1986-03-11 EP EP86890055A patent/EP0194995A3/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2861458A (en) * | 1953-01-31 | 1958-11-25 | Michran K Awedissjan | Vibration generator |
| US2921477A (en) * | 1956-12-31 | 1960-01-19 | Continental Oil Co | Constant force variable speed vibrator |
| DE1483413A1 (en) * | 1965-02-17 | 1969-09-18 | Voegele Ag J | Vibration exciter on a rotating shaft |
| US4341126A (en) * | 1977-02-25 | 1982-07-27 | Thomas Hubert E | Variable amplitude vibratory apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0194995A2 (en) | 1986-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT DE GB SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT DE GB SE |
|
| 17P | Request for examination filed |
Effective date: 19870616 |
|
| 17Q | First examination report despatched |
Effective date: 19890619 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19891031 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: RABOFSKY, CHRISTOF |