FR2294766A1 - Vibration generator permitting complete suppression of vibrations - has sliders inside cylinders rotating in housing with vertical travel - Google Patents
Vibration generator permitting complete suppression of vibrations - has sliders inside cylinders rotating in housing with vertical travelInfo
- Publication number
- FR2294766A1 FR2294766A1 FR7423538A FR7423538A FR2294766A1 FR 2294766 A1 FR2294766 A1 FR 2294766A1 FR 7423538 A FR7423538 A FR 7423538A FR 7423538 A FR7423538 A FR 7423538A FR 2294766 A1 FR2294766 A1 FR 2294766A1
- Authority
- FR
- France
- Prior art keywords
- vibrations
- housing
- vibration generator
- vertical travel
- complete suppression
- 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.)
- Granted
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/04—Monodirectional test stands
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The vibration generator, designed so that the vibrations can be totally cancelled, has a casing (20) with a a rod (38) protruding top and bottom, mounted in ball bearings housed in corresponding holes in the fixed frame (45) and with two lugs (40) extending outwards, located by a stop to prevent rotation, containing two chambers, each housing a cylinder (25, 24) which can rotate about a spindle near the middle, with a threaded rod (37, 37a) down the middle, so that a piston (36, 36a) inside can slide inside, when the threaded rod is rotated by a bevel drive (31, 32). This drive is in turn driven by a double gear train inside the casing, driven in turn from a variable speed unit. Weights can be added to the top part of the central shaft (38) and a dynamometer device (44) positioned under the bottom part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7423538A FR2294766A1 (en) | 1974-07-05 | 1974-07-05 | Vibration generator permitting complete suppression of vibrations - has sliders inside cylinders rotating in housing with vertical travel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7423538A FR2294766A1 (en) | 1974-07-05 | 1974-07-05 | Vibration generator permitting complete suppression of vibrations - has sliders inside cylinders rotating in housing with vertical travel |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2294766A1 true FR2294766A1 (en) | 1976-07-16 |
FR2294766B1 FR2294766B1 (en) | 1977-06-24 |
Family
ID=9140966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7423538A Granted FR2294766A1 (en) | 1974-07-05 | 1974-07-05 | Vibration generator permitting complete suppression of vibrations - has sliders inside cylinders rotating in housing with vertical travel |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2294766A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2374094A1 (en) * | 1976-09-01 | 1978-07-13 | Fmc Corp | EXCENTERED MASS VIBRATOR |
FR2480853A1 (en) * | 1980-04-22 | 1981-10-23 | Renault | Hydraulic valve control for IC engine - uses piston controlled by concentric sleeves rotated by engine driven satellite gear train |
ES2233129A1 (en) * | 2002-07-04 | 2005-06-01 | Uma Hermanos Alquezar, S.A. | Vibrating type eccentric mass rotating system, has rotating cylinder provided with two chambers and rotated by engine, and hydraulic cylinders equipped with double acting rotary actuators through motor |
-
1974
- 1974-07-05 FR FR7423538A patent/FR2294766A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2374094A1 (en) * | 1976-09-01 | 1978-07-13 | Fmc Corp | EXCENTERED MASS VIBRATOR |
FR2480853A1 (en) * | 1980-04-22 | 1981-10-23 | Renault | Hydraulic valve control for IC engine - uses piston controlled by concentric sleeves rotated by engine driven satellite gear train |
ES2233129A1 (en) * | 2002-07-04 | 2005-06-01 | Uma Hermanos Alquezar, S.A. | Vibrating type eccentric mass rotating system, has rotating cylinder provided with two chambers and rotated by engine, and hydraulic cylinders equipped with double acting rotary actuators through motor |
Also Published As
Publication number | Publication date |
---|---|
FR2294766B1 (en) | 1977-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |