EP0824971A1 - Schwingungserreger - Google Patents
Schwingungserreger Download PDFInfo
- Publication number
- EP0824971A1 EP0824971A1 EP97114004A EP97114004A EP0824971A1 EP 0824971 A1 EP0824971 A1 EP 0824971A1 EP 97114004 A EP97114004 A EP 97114004A EP 97114004 A EP97114004 A EP 97114004A EP 0824971 A1 EP0824971 A1 EP 0824971A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unbalance
- adjusting
- unit
- units
- gear
- 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
Images
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
- B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase
Definitions
- the invention relates to a vibration exciter with at least a rotating driven unbalance unit, the one hollow cylindrical outer unbalance and a coaxial therein has stored internal unbalance, and an adjusting device with a gear arrangement that with a gear of External unbalance and a gear of the internal unbalance for adjustment the unbalance is related.
- a generic vibration exciter is from DE 35 05 580 C2 known, in which a speed adjustment by means of Axial displacement of a helical double gear he follows. The necessary axial drive and the associated one Plain bearings lead to an overall complex construction.
- This well-known vibration exciter is also included a single unbalance unit as well as that from DE 24 09 417 A known vibration exciters only conditionally for the Generation of larger unbalance forces is suitable.
- a vibration exciter with several unbalance units is further disclosed in DE 27 38 794 A.
- the external unbalance compared to an internal unbalance is a complex one Adjustment and tensioning device provided, which in the production is complex.
- the invention has for its object to provide a compact and as simple as possible vibration exciter with which larger imbalances can be generated.
- the object is achieved in that at least on both sides of the adjustment device an unbalance unit is provided that the adjusting device two coaxially arranged and against each other has rotatably mounted adjusting gears, and that one of the adjustment gears, each with a gear the adjacent unbalance units in meshing connection stands while the other adjusting gear with each other gears of the adjacent unbalance units in intermeshing connection.
- An advantageous development of the invention consists in that on both sides of the adjustment device each Two unbalance units are provided, which are in each other intermeshing connection. Of the two unbalance units on one side only one meshes with the adjusting gears the adjustment device while the second unbalance unit only with the first unbalance unit is in meshing connection.
- a vertical vibrator can be created in which add the unbalances completely in the vertical direction.
- By avoiding unwanted lateral vibrations is such a vertical vibrator especially as a top vibrator in special foundation engineering suitable.
- the arrangement according to the invention enables Rotation of the unbalances with a relatively large unbalance mass, without generating unwanted wobbles.
- a particularly good compensation for unwanted vibration components is achieved in that on the one hand an adjusting gear with the external unbalance gear of one unbalance unit is in mesh, while on the other hand the same adjustment gear with the gear of the internal unbalance the other unbalance unit in meshing connection stands.
- Another advantageous development of the invention lies in that only on one side of the adjustment device the gears of the external unbalance and exclusively the gears of the internal imbalance with each other intermeshing connection. With this arrangement you can on each side the unbalance of the external unbalance and the inner unbalance are precisely aligned.
- the axes of the unbalance units and the adjustment unit axially parallel, but spatially offset to arrange each other.
- the axes the unbalance units and the adjustment unit to each other are axially parallel and lie in one plane.
- the Internal unbalance rotatably supported in a housing are.
- the External unbalance via a bearing device on the internal unbalance is stored.
- the bearing device can be a roller bearing, in particular a needle bearing, or a plain bearing. Lubrication free Slide bushes as slide bearings are always closed choose if with the vibration generator according to the invention strong vibrations are to be generated.
- the drive torque of a motor can initiated via the adjustment device and via the gears transferred to the individual unbalance units.
- the adjustment device is then in the appropriate material thickness to execute.
- a torque transferable from a drive motor to an unbalance unit is.
- the drive motor is available via a gearbox the internal or external unbalance of an unbalance unit immediately in connection.
- a drive torque applied to all at the same time Unbalance units is transferable.
- a separate drive motor for each unbalance unit or a central motor with a corresponding gear be provided.
- the gears both the adjustment device and the individual Unbalance unit designed with a lower strength will be provided.
- a vibration exciter 10 according to the invention with an adjusting device 5 and four unbalance units 20, 30, 40, 50 is shown in Figure 1.
- the adjusting device 5 comprises a first adjusting gear 6 with a bearing shaft 8 and a mounting shaft 3.
- a Locking device not shown, which, for example can be a locking screw, an adjusting gear 7 releasably attached.
- the adjusting device 5 Rolling bearings 4 stored in a housing, not shown.
- the unbalance units 20, 30, 40, 50 are constructed identically, the unbalance units 30, 50 on one side opposite the unbalance units 20, 40 on the other side of the adjustment device 5 are arranged offset by 180 degrees.
- the structure of the unbalance units 20, 30, 40, 50 is exemplified by the unbalance unit 20 explained.
- the unbalance unit 20 has a hollow cylindrical outer unbalance 15 and an internal unbalance 11 arranged therein.
- the internal unbalance is via roller bearings 4 and bearing shafts 13 11 rotatably supported in a housing.
- a gear 12 with spur gear teeth intended for the intermeshing connection with the adjusting gear 7 and the adjacent unbalance unit 40.
- To create an uneven mass distribution is the inner unbalance 11 on one side with a Provide recess 14.
- the external imbalance 15 is on the via two slide bearings 18 Inner unbalance 11 rotatably mounted.
- the external imbalance 15 points a gear 16 and a recess 14 for generating a Unbalance.
- the gears 12, 16 have the same Diameter.
- the axial distance between the gears 12, 16 corresponds that of the adjusting gears 6, 7.
- the adjusting gear 7 of the adjusting device 5 meshes on the one hand with the gear 12 of the inner unbalance 11 of the unbalance unit 20 and on the other hand with the gear 16 External unbalance 15 of the other adjacent unbalance unit 30.
- the adjusting gear 7 On the other or lower side of the adjustment device 5, however, is the adjusting gear 7 via the gears 16 coupled to the external unbalance 15 of the unbalance units 30, 50.
- the adjusting gear 6 stands with the Gears 12 of the unbalance units 30, 50 in connection.
- the axis 2 of the adjusting device 5 and the axes 21, 31, 41, 51 of the respective unbalance units 20, 30, 40, 50 are parallel to each other and lie in the plane of the drawing.
- the unbalance units 20, 30, 40, 50 mounted in a housing 1 are in an operating state in which the maximum unbalance force is directed upwards in a line.
- the unbalance units 20, 30, 40, 50 have each rotated through 90 degrees.
- the unbalance forces F1 and F2 resulting from the rotation form total forces F res , which cancel each other out.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Motor Or Generator Frames (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Surgical Instruments (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- Fig. 1
- einen schematischen Querschnitt durch einen erfindungsgemäßen Schwingungserreger mit vier Unwuchteinheiten und
- Figuren 2 bis 5
- eine schematische Ansicht gemäß dem Schnitt A-A in Figur 1 in unterschiedlichen Betriebszuständen.
Claims (9)
- Schwingungserreger mit mindestens einer rotierend angetriebenen Unwuchteinheit, die eine hohlzylinderförmige Außenunwucht und eine koaxial darin gelagerte Innenunwucht aufweist, und eine Verstelleinrichtung mit einer Zahnradanordnung, die mit einem Zahnrad der Außenunwucht und einem Zahnrad der Innenunwucht zur Verstellung der Unwucht in Verbindung steht,
dadurch gekennzeichnet,
daß zu beiden Seiten der Verstelleinrichtung (5) jeweils mindestens eine Unwuchteinheit (20, 30) vorgesehen ist,
daß die Verstelleinrichtung (5) zwei zueinander koaxial angeordnete und gegeneinander verdrehbar gelagerte Verstellzahnräder (6, 7) aufweist, und
daß eines der Verstellzahnräder (6) mit jeweils einem Zahnrad (12, 16) der angrenzenden Unwuchteinheiten (20, 30) in kämmender Verbindung steht, während das andere Verstellzahnrad (7) mit den jeweils anderen Zahnrädern (12, 16) der angrenzenden Unwuchteinheiten (20, 30) in kämmender Verbindung steht. - Schwingungserreger nach Anspruch 1,
dadurch gekennzeichnet,
daß zu beiden Seiten der Verstelleinrichtung (5) jeweils zwei Unwuchteinheiten (20, 40; 30, 50) vorgesehen sind, die miteinander in kämmender Verbindung stehen. - Schwingungserreger nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß einerseits ein Verstellzahnrad (6) mit dem Zahnrad (16) der Außenunwucht (15) der einen Unwuchteinheit (20) in kämmender Verbindung steht, während andererseits dasselbe Verstellzahnrad (6) mit dem Zahnrad (12) der Innenunwucht (11) der anderen Unwuchteinheit (30) in kämmender Verbindung steht. - Schwingungserreger nach Anspruch 2 oder 3,
dadurch gekennzeichnet,
daß auf einer Seite der Verstelleinrichtung (5) ausschließlich die Zahnräder (16) der Außenunwuchten (15) und ausschließlich die Zahnräder (12) der Innenunwuchten (11) miteinander in kämmender Verbindung stehen. - Schwingungserreger nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die Achsen (2, 21, 31, 41, 51) der Verstelleinheit (5) und der Unwuchteinheiten (20, 30, 40, 50) zueinander achsparallel sind und in einer Ebene liegen. - Schwingungserreger nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß die Innenunwuchten (11) jeweils drehbar in einem Gehäuse (1) gelagert sind. - Schwingungserreger nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß die Außenunwucht (15) über eine Lagereinrichtung (18) an der Innenunwucht (11) gelagert ist. - Schwingungserreger nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß ein Drehmoment von einem Antriebsmotor auf eine Unwuchteinheit (20, 30, 40, 50) übertragbar ist. - Schwingungserreger nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß ein Antriebsdrehmoment gleichzeitig auf alle Unwuchteinheiten (20, 30, 40, 50) übertragbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29614122U DE29614122U1 (de) | 1996-08-14 | 1996-08-14 | Schwingungserreger |
DE29614122U | 1996-08-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0824971A1 true EP0824971A1 (de) | 1998-02-25 |
EP0824971B1 EP0824971B1 (de) | 1999-06-09 |
Family
ID=8027856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97114004A Expired - Lifetime EP0824971B1 (de) | 1996-08-14 | 1997-08-13 | Schwingungserreger |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0824971B1 (de) |
AT (1) | ATE180994T1 (de) |
CZ (1) | CZ287058B6 (de) |
DE (2) | DE29614122U1 (de) |
ES (1) | ES2134048T3 (de) |
HU (1) | HU220983B1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7422073B2 (en) | 2004-09-01 | 2008-09-09 | Eurodrill Gmbh | Ground working implement and method for introducing a working element into the ground |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2781269A1 (de) | 2013-03-20 | 2014-09-24 | Eurodrill GmbH | Schwingungserreger, insbesondere für eine Baumaschine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2738794A1 (de) * | 1976-09-01 | 1978-03-02 | Fmc Corp | Vibrator |
EP0199922A2 (de) * | 1985-05-02 | 1986-11-05 | Gebr. Lindenmeyer GmbH & Co. Maschinenfabrik | Vibrationsbär mit Umwuchtverstellung |
EP0467758A1 (de) * | 1990-07-20 | 1992-01-22 | Procedes Techniques De Construction | Mehrfrequenter Schwingungserzeuger |
FR2664833A1 (fr) * | 1990-07-20 | 1992-01-24 | Procedes Tech Construction | Procede et dispositif pour l'enfoncement dans le sol d'objets tels que des palplanches. |
US5253542A (en) * | 1991-07-15 | 1993-10-19 | Procedes Techniques De Construction | Variable moment vibrator usable for driving objects into the ground |
-
1996
- 1996-08-14 DE DE29614122U patent/DE29614122U1/de not_active Expired - Lifetime
-
1997
- 1997-07-22 HU HU9701259A patent/HU220983B1/hu not_active IP Right Cessation
- 1997-07-24 CZ CZ19972366A patent/CZ287058B6/cs not_active IP Right Cessation
- 1997-08-13 DE DE59700198T patent/DE59700198D1/de not_active Expired - Fee Related
- 1997-08-13 AT AT97114004T patent/ATE180994T1/de not_active IP Right Cessation
- 1997-08-13 ES ES97114004T patent/ES2134048T3/es not_active Expired - Lifetime
- 1997-08-13 EP EP97114004A patent/EP0824971B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2738794A1 (de) * | 1976-09-01 | 1978-03-02 | Fmc Corp | Vibrator |
EP0199922A2 (de) * | 1985-05-02 | 1986-11-05 | Gebr. Lindenmeyer GmbH & Co. Maschinenfabrik | Vibrationsbär mit Umwuchtverstellung |
EP0467758A1 (de) * | 1990-07-20 | 1992-01-22 | Procedes Techniques De Construction | Mehrfrequenter Schwingungserzeuger |
FR2664833A1 (fr) * | 1990-07-20 | 1992-01-24 | Procedes Tech Construction | Procede et dispositif pour l'enfoncement dans le sol d'objets tels que des palplanches. |
US5253542A (en) * | 1991-07-15 | 1993-10-19 | Procedes Techniques De Construction | Variable moment vibrator usable for driving objects into the ground |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7422073B2 (en) | 2004-09-01 | 2008-09-09 | Eurodrill Gmbh | Ground working implement and method for introducing a working element into the ground |
Also Published As
Publication number | Publication date |
---|---|
DE59700198D1 (de) | 1999-07-15 |
ES2134048T3 (es) | 1999-09-16 |
DE29614122U1 (de) | 1996-09-26 |
HUP9701259A2 (hu) | 1999-11-29 |
HU9701259D0 (en) | 1997-09-29 |
HU220983B1 (hu) | 2002-07-29 |
CZ236697A3 (cs) | 1999-09-15 |
HUP9701259A3 (en) | 1999-12-28 |
ATE180994T1 (de) | 1999-06-15 |
EP0824971B1 (de) | 1999-06-09 |
CZ287058B6 (en) | 2000-08-16 |
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