DE19643978C2 - Vibration generator with continuously adjustable centrifugal force during operation for use in the core vibrating machines (concrete pipe machines), vibrating devices for concrete block molding machines, as well as in vibratory rollers - Google Patents

Vibration generator with continuously adjustable centrifugal force during operation for use in the core vibrating machines (concrete pipe machines), vibrating devices for concrete block molding machines, as well as in vibratory rollers

Info

Publication number
DE19643978C2
DE19643978C2 DE1996143978 DE19643978A DE19643978C2 DE 19643978 C2 DE19643978 C2 DE 19643978C2 DE 1996143978 DE1996143978 DE 1996143978 DE 19643978 A DE19643978 A DE 19643978A DE 19643978 C2 DE19643978 C2 DE 19643978C2
Authority
DE
Germany
Prior art keywords
machines
vibration generator
piston
bore
vibrating
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 - Fee Related
Application number
DE1996143978
Other languages
German (de)
Other versions
DE19643978A1 (en
Inventor
Michael Dipl Ing Rebei
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.)
REBEI MICHAEL DIPL ING TH
Original Assignee
REBEI MICHAEL DIPL ING TH
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 REBEI MICHAEL DIPL ING TH filed Critical REBEI MICHAEL DIPL ING TH
Priority to DE1996143978 priority Critical patent/DE19643978C2/en
Publication of DE19643978A1 publication Critical patent/DE19643978A1/en
Application granted granted Critical
Publication of DE19643978C2 publication Critical patent/DE19643978C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • B06B1/183Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Description

Die Erfindung betrifft einen Schwingungserzeuger mit kontinuierlich einstellbarer Fliehkraft während des laufenden Betriebes, einsetzbar insbesondere in Kern­ rüttelmaschinen, sowie in Vibrationswalzen, wobei der Schwingungserzeuger ver­ sehen ist mit einem in einem festen Gehäuse gelagerten Rotor mit zwei senkrecht zueinander und miteinander verbundenen Bohrungen, wobei die erste Bohrung senkrecht zur Drehachse und die zweite Bohrung in der Drehachse liegt und wo­ bei in der ersten Bohrung ein Kolben angeordnet ist, der mittels einer Feder und einer Druckflüssigkeit senkrecht zur Drehachse bewegbar ist.The invention relates to a vibration generator with continuously adjustable Centrifugal force during operation, can be used especially in the core vibrators, as well as in vibratory rollers, the vibration generator ver see is with a rotor in a fixed housing with two vertical to each other and interconnected holes, the first hole perpendicular to the axis of rotation and the second hole in the axis of rotation and where a piston is arranged in the first bore, which is by means of a spring and a hydraulic fluid is movable perpendicular to the axis of rotation.

Ein derartiger Schwingungserzeuger ist bekannt geworden aus der CH-PS 331 129. Bei dem bekannten Schwingungserzeuger wird das zur radialen Verschiebung des Unwuchtkörpers vorgesehene Druckmittel über eine Druckleitung aus einer Pumpenstation über komplizierte Ventilblöcke gesteuert und durch eine Dreh­ durchführung in die Druckkammer eingeführt. Die Unwuchtkörperstellung ist bei konstanter Drehzahl des Rotors von dem von der Pumpe erzeugten Gegendruck abhängig. So eine Lösung ist nur mit großem technischen Aufwand zu realisieren. Weiterhin treten oft Leckagen in der Drehdurchführung, sowie Positionierungsunge­ nauigkeiten wegen des langen hydraulischen Leitungsweges auf.Such one Vibration generator has become known from CH-PS 331 129. The Known vibration generator for radial displacement of the Imbalance provided pressure medium via a pressure line from a Pump station controlled by complicated valve blocks and by a turn bushing inserted into the pressure chamber. The unbalance position is at constant speed of the rotor from the back pressure generated by the pump dependent. Such a solution can only be implemented with great technical effort. Furthermore, there are often leaks in the rotating union and positioning inaccuracies due to the long hydraulic line path.

Die Aufgabe, die dieser Erfindung zugrunde liegt, ist, einen Schwingungserzeuger zu schaffen, der hinsichtlich der Rüttelamplitude und Frequenz einfach während des laufenden Betriebes zu verstellen, kostengünstig und raumsparend sein soll. Die Lösung der Aufgabe erfolgt dadurch, daß in der zweiten Bohrung ein mittels einer Kolbenstange entlang der Drehachse verschiebbarer Steuerkolben ange­ ordnet ist, mittels welchem die Druckflüssigkeit in die erste Bohrung eingepresst wird, wobei die Kolbenstange über ein Lager mit dem Steuerkolben verbunden ist.The object underlying this invention is a vibrator to create the simple in terms of vibration amplitude and frequency to adjust the running operation should be inexpensive and space-saving. The object is achieved in that a means in the second hole a piston rod along the axis of rotation displaceable control piston is arranged, by means of which the hydraulic fluid is pressed into the first bore the piston rod is connected to the control piston via a bearing is.

Eine erfindungsgemäße Ausführungsform des Schwingungserzeugers mit konti­ nuierlich einstellbarer Fliehkraft ist in Fig. 1 dargestellt. Dieser besteht aus einem Gehäuse 1, und einem Abschlußdeckel 2 in denen jeweils ein Lager 3 eingebaut ist, worin der Rotor 4 gelagert wird. Der zwischen den Lagern eingebaute Rotor 4 hat nach Anspruch 1 zwei senkrecht zueinander orientierte Bohrungen 5 und 6, die miteinander über die Leitung 10 verbunden sind. In der Bohrung 5, die senk­ recht zur Drehachse 20 ausgeführt ist, befindet sich gemäß Anspruch 2 ein Kol­ ben 8 dessen Kern 9 mit Werkstoffen mit hohem spezifischem Gewicht gefüllt werden kann, insbesondere Blei oder Quecksilber, das erfindungsgemäß kleine Baumaße ergibt. Die Null-Stellung A-A des Kolbens 8 ist durch den Anschlag 11 fest definiert. Ein zweiter Kolben 7, der Steuerkolben, bewegt sich in der Bohrung 6 senkrecht zur Bohrung 5 in Richtung 18 oder 19. Wird der Rotor vom Antrieb 17 z. B. elektrisch, hydraulisch, pneumatisch oder andere Antriebe, in Drehbewe­ gung gesetzt und der Steuerkolben 7 in Stellung C-C gebracht, so wird das Druckmittel, insbesondere Öl, in die Kammer 5 durch die Leitung 10 gepreßt und der Kolben 8 in Null-Stellung A-A gehalten, wo die Vibration null ist. Wird der Steuerkolben 7 in eine andere Position in Richtung 18 bei drehendem Rotor gebracht und gehalten, so kann die Feder 12 sich entspannen und den Kolben 8 aus der Null-Stellung A-A senkrecht zur Drehachse 20 nach außen verschieben. Ist der Kolben 8 einmal außer Gleichgewicht, beginnt das System zu vibrieren. Nimmt der Steuerkolben 7 die Maximalstellung D-D ein, so ist bei gleicher Dreh­ zahl des Rotors 4 die maximale Fliehkraft erreicht. Erfindungsgemäß erfolgt diese Steuerung über die genaue Positionierung der sich nicht drehenden Kolbenstan­ ge 14, die im Lager 13 gelagert ist, linear geführt wird und drehgesichert ist über die Führung 16. Die so erzeugten Schwingungen werden über die Lager 3 und das Gehäuse 1 in den Formkern 15 eingeleitet, wobei andere Einsatzformen, ins­ besondere Rütteltische oder Rüttelwalzen, möglich sind.An embodiment of the vibration generator according to the invention with continuously adjustable centrifugal force is shown in Fig. 1. This consists of a housing 1 and an end cover 2, in each of which a bearing 3 is installed, in which the rotor 4 is mounted. The rotor 4 installed between the bearings has, according to claim 1, two mutually perpendicular bores 5 and 6 which are connected to one another via the line 10 . In the bore 5 , which is perpendicular to the axis of rotation 20 , there is a piston ben 8 whose core 9 can be filled with materials with a high specific weight, in particular lead or mercury, which results in small dimensions according to the invention. The zero position AA of the piston 8 is firmly defined by the stop 11 . A second piston 7 , the control piston, moves in the bore 6 perpendicular to the bore 5 in the direction 18 or 19 . If the rotor from the drive 17 z. B. electric, hydraulic, pneumatic or other drives, set in rotary movement and the control piston 7 brought into position CC, the pressure medium, in particular oil, is pressed into the chamber 5 through the line 10 and the piston 8 in the zero position AA kept where the vibration is zero. If the control piston 7 is brought and held in another position in the direction 18 with the rotor rotating, the spring 12 can relax and move the piston 8 outwards from the zero position AA perpendicular to the axis of rotation 20 . Once the piston 8 is out of balance, the system begins to vibrate. The control piston 7 assumes the maximum position DD, the maximum centrifugal force is reached at the same speed of the rotor 4 . According to the invention, this control takes place via the precise positioning of the non-rotating piston rod 14 , which is mounted in the bearing 13 , is guided linearly and is secured against rotation via the guide 16 . The vibrations generated in this way are introduced into the mold core 15 via the bearings 3 and the housing 1 , other forms of use, in particular vibrating tables or vibrating rollers, being possible.

Claims (4)

1. Schwingungserzeuger mit kontinuierlich einstellbarer Fliehkraft während des laufenden Betriebes, insbesondere für den Einsatz in den Kernrüttelmaschinen (Beton-Rohrmaschinen), Rüttelvorrichtungen für Betonsteinformmaschinen, sowie in Vibrationswalzen, mit einem in einem festen Gehäuse (1) gelagerten Rotor (4) mit zwei senkrecht zueinander und miteinander verbundenen Bohrun­ gen (5, 6), wobei die erste Bohrung (5) senkrecht zur Drehachse (20) und die zweite Bohrung (6) in der Drehachse (20) liegt und wobei in der ersten Bohrung (5) ein Kolben (8) angeordnet ist, der mittels einer Feder (12) und einer Druck­ flüssigkeit senkrecht zur Drehachse (20) bewegbar ist, dadurch gekennzeichnet, daß in der zweiten Bohrung (6) ein mittels einer Kolbenstange (14) entlang der Drehachse (20) verschiebbarer Steuerkolben (7) angeordnet ist, mittels welchen die Druckflüssigkeit in die erste Bohrung (5) ein­ gepresst wird, wobei die Kolbenstange (14) über ein Lager (13) mit dem Steuer­ kolben (7) verbunden ist.1. Vibration generator with continuously adjustable centrifugal force during operation, in particular for use in core vibrators (concrete pipe machines), vibrators for concrete block molding machines, as well as in vibratory rollers, with a rotor ( 4 ) mounted in a fixed housing ( 1 ) with two vertically to each other and interconnected holes ( 5 , 6 ), the first bore ( 5 ) perpendicular to the axis of rotation ( 20 ) and the second bore ( 6 ) in the axis of rotation ( 20 ) and wherein in the first bore ( 5 ) a piston ( 8 ) is arranged, which is movable by means of a spring ( 12 ) and a pressure liquid perpendicular to the axis of rotation ( 20 ), characterized in that in the second bore ( 6 ) by means of a piston rod ( 14 ) along the axis of rotation ( 20 ) displaceable control piston ( 7 ) is arranged, by means of which the pressure fluid is pressed into the first bore ( 5 ), the piston rod ( 14 ) being connected via a Bearing ( 13 ) with the control piston ( 7 ) is connected. 2. Schwingungserzeuger nach Anspruch 1, dadurch gekennzeichnet, daß der radial bewegliche Kolben (8) aus einem Kern (9) mit hohem spezifischem Gewicht mit oder ohne eine Umhüllung (8a) besteht.2. Vibration generator according to claim 1, characterized in that the radially movable piston ( 8 ) consists of a core ( 9 ) with a high specific weight with or without a sheath ( 8 a). 3. Schwingungserzeuger nach einer der vorherigen Ansprüche, dadurch gekennzeichnet, daß die "NULL-Stellung" A-A durch einen Anschlag (11) genau definiert wird.3. Vibration generator according to one of the preceding claims, characterized in that the "ZERO position" AA is precisely defined by a stop ( 11 ). 4. Schwingungserzeuger nach einer der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Kolben (8) aus der "NULL-Stellung" A-A einseitig nach außen, insbesondere mittels einer Druckfeder bewegt werden kann.4. Vibration generator according to one of the preceding claims, characterized in that the piston ( 8 ) from the "ZERO position" AA can be moved on one side to the outside, in particular by means of a compression spring.
DE1996143978 1996-10-31 1996-10-31 Vibration generator with continuously adjustable centrifugal force during operation for use in the core vibrating machines (concrete pipe machines), vibrating devices for concrete block molding machines, as well as in vibratory rollers Expired - Fee Related DE19643978C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1996143978 DE19643978C2 (en) 1996-10-31 1996-10-31 Vibration generator with continuously adjustable centrifugal force during operation for use in the core vibrating machines (concrete pipe machines), vibrating devices for concrete block molding machines, as well as in vibratory rollers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996143978 DE19643978C2 (en) 1996-10-31 1996-10-31 Vibration generator with continuously adjustable centrifugal force during operation for use in the core vibrating machines (concrete pipe machines), vibrating devices for concrete block molding machines, as well as in vibratory rollers

Publications (2)

Publication Number Publication Date
DE19643978A1 DE19643978A1 (en) 1998-05-07
DE19643978C2 true DE19643978C2 (en) 1999-07-08

Family

ID=7809713

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996143978 Expired - Fee Related DE19643978C2 (en) 1996-10-31 1996-10-31 Vibration generator with continuously adjustable centrifugal force during operation for use in the core vibrating machines (concrete pipe machines), vibrating devices for concrete block molding machines, as well as in vibratory rollers

Country Status (1)

Country Link
DE (1) DE19643978C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10062530C1 (en) * 2000-12-13 2002-06-20 Iff Weimar Device for the production of molded parts from a compactable mixture, vibrating table and vibration exciter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29819501U1 (en) * 1998-11-03 1998-12-24 Zenith-Maschinenfabrik GmbH, 57290 Neunkirchen Vibrating device for stone molding machines
DE102010015950B4 (en) 2010-03-12 2012-12-13 RAVI Baugeräte GmbH Hand shaker for compacting materials in road, track and earthworks
CN107029976A (en) * 2017-06-23 2017-08-11 石家庄铁道大学 A kind of vibrator
CN115748655B (en) * 2022-11-30 2023-06-20 北京振冲工程机械有限公司 Hydraulic vibroflotation device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH331129A (en) * 1954-04-23 1958-06-30 Lehmann Pottkaemper Gerhard Process for stepless regulation of the balance force of vibration generators

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH331129A (en) * 1954-04-23 1958-06-30 Lehmann Pottkaemper Gerhard Process for stepless regulation of the balance force of vibration generators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10062530C1 (en) * 2000-12-13 2002-06-20 Iff Weimar Device for the production of molded parts from a compactable mixture, vibrating table and vibration exciter

Also Published As

Publication number Publication date
DE19643978A1 (en) 1998-05-07

Similar Documents

Publication Publication Date Title
DE2737985A1 (en) HANGING DEVICE FOR A ROTATING MACHINE
DE2413655A1 (en) METHOD AND DEVICE FOR INCREASING THE DYNAMIC CAPACITY LIMIT OF TURBINES AND COMPRESSORS
DE2428376A1 (en) COMPRESSOR
DE19643978C2 (en) Vibration generator with continuously adjustable centrifugal force during operation for use in the core vibrating machines (concrete pipe machines), vibrating devices for concrete block molding machines, as well as in vibratory rollers
EP0232421A1 (en) Screw machine
DE4311940A1 (en) Universal testing machine
DE2140006B1 (en) Vibration exciter
DE2046215C3 (en) Vibration drive
DE2111973C3 (en)
DE2828290C2 (en) vibrator
DE2652760A1 (en) VIBRATING DRIVE MECHANISM FOR A VIBRATING TOOL, IN PARTICULAR A GRALL TAMPER
DE2838428A1 (en) Suspended loads rotating bearing and hydraulic motor - has inner rotor with bearings and radial cylinders contacting stator cams
DE102014002495B3 (en) Device for measuring and adjusting the backlash
EP1728564B1 (en) Vibration generator with an operating piston that is slidingly supported between pressure chambers
DE3212599C2 (en)
EP0089568B1 (en) Fluid operated linear-to-rotary actuator
DE958729C (en) Hydrostatic rotary piston machine for driving vehicles
AT411288B (en) DEVICE FOR CONVERTING ELECTRICAL TO HYDRAULIC ENERGY
DE2700379A1 (en) ROLLER WITH ADJUSTABLE DEFLECTION
DE737566C (en) Device for damping torsional vibrations
DE4241818C2 (en) Damping device for linear roller bearing guides
DE1159183B (en) Method and device for balancing workpieces
DE4209625A1 (en) Bearing for laboratory centrifuge - has vibration damper which is connected to housing by viscous fluid and to bearings by elastic element.
DE102007042488A1 (en) Separator for use in centrifuge rotor of electrical asynchronous motor, has damping unit with magneto-rheological or electro-rheological absorber that is coupled with vertical output shaft of rotor of electrical motor
DD266748A1 (en) UNBALANCE VIBRATOR

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8122 Nonbinding interest in granting licenses declared
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee