EP3949088A1 - Schwingungserregervorrichtung zum erzeugen von schwingungen und/oder vibrationen - Google Patents
Schwingungserregervorrichtung zum erzeugen von schwingungen und/oder vibrationenInfo
- Publication number
- EP3949088A1 EP3949088A1 EP20715842.9A EP20715842A EP3949088A1 EP 3949088 A1 EP3949088 A1 EP 3949088A1 EP 20715842 A EP20715842 A EP 20715842A EP 3949088 A1 EP3949088 A1 EP 3949088A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- rotor
- unbalance
- eccentric element
- rotation
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
- H02K7/063—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses integrally combined with motor parts, e.g. motors with eccentric rotors
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
Definitions
- the invention relates to a vibration exciter device for generating oscillations and / or vibrations, wherein a
- Electric motor with a stator unit and with one to one
- vibration exciters are used in a wide variety of variants and in a wide variety of technical fields of application.
- so-called external vibrators are already known, which are attached to the formwork when concrete is poured in order to compact the concrete.
- a corresponding external vibrator is known from DE 20 2006 001 445, for example.
- the disadvantage here is the constructive and thus also the economic effort. This is mainly for a dirt and especially waterproof design with a high degree of protection for outdoor use etc. very high, especially with one
- the object of the invention is to provide a
- This task is based on a
- one according to the invention is characterized
- Unbalance unit is arranged at least between the first and the second bearing unit.
- the arrangement of the unbalance unit within or between the bearing units or the bearings / end shields of the electric motor represents a complete departure from the tried and tested for decades
- the vibration exciter device can be built much more compact or space-saving. So far
- the drive system can be partially or preferably completely omitted.
- the motor shaft or drive shaft can be designed to be correspondingly small or short.
- Unbalance elements are dispensable or not used.
- Rotor unit or rotor shaft at least partially hollow, ie in some areas without material / metal / steel and thus with air, be filled or formed. Accordingly, compared to the prior art, with almost the same unbalanced mass or oscillation / vibration power, a reduction in the
- electromagnetic drive system can be achieved.
- At least one unbalance element of the unbalance unit is arranged within the rotor or the rotor unit and / or within a rotor shaft which is at least partially designed as a hollow shaft.
- the unbalance element or the unbalance unit is located inside or inside the rotor unit and / or rotor shaft.
- rotor components of the electromagnetic drive system such as e.g. Permanent magnets or electrical coils or the like are arranged at least partially on the circumference or outside around the unbalance element or the unbalance unit. This enables a particularly compact design with a partly powerful drive system or an electromagnetic drive system having a relatively high torque.
- the rotor shaft is advantageously designed as an unbalance unit. This enables a particularly low
- the rotor unit has at least one carrier unit for carrying
- Rotor components of the electromagnetic drive system e.g. electromagnetic coils and / or permanent magnets (with rare earths).
- the carrier unit is arranged on the rotor shaft.
- the carrier unit preferably comprises (numerous) laminated cores and / or the carrier unit is advantageously partially hollow or has recesses. This enables an inexpensive and compact device to be implemented.
- Recesses in the carrier unit generate the imbalance according to the invention or lead to a (mass) center of gravity
- Carrier unit and / or the rotor unit which is arranged eccentrically or offset to the axis of rotation of the rotor unit.
- the carrier unit can advantageously be designed as an unbalance unit.
- Unbalance unit arranged at least within a motor housing of the electric motor.
- a largely closed system with an integrated unbalance unit can be used here
- the unbalance unit preferably comprises at least one first eccentric element, a first distance being provided between a first center of gravity of the first eccentric element and the axis of rotation.
- a first distance being provided between a first center of gravity of the first eccentric element and the axis of rotation.
- the advantageous adjustment unit can increase and / or decrease the effective unbalanced mass or the eccentricity of the
- Unbalance unit or the unbalance element are realized. This can be of great advantage, for example, for a start-up phase of the motor and / or for an upper operating range at almost the maximum speed of the motor.
- the adjustment unit comprises at least one return spring element for
- the unbalance unit advantageously comprises at least the first eccentric element and a second eccentric element having a second center of gravity, the second center of gravity being at least temporarily arranged differently from the first center of gravity of the first eccentric element.
- the adjustment unit changes / adjusts the first and / or second center of gravity, especially relative to one another.
- This also allows the effective unbalance mass to be changed and thus an increase and / or reduction of the effective unbalance mass or the eccentricity of the unbalance unit or of the unbalance element (s) / eccentric element can be achieved.
- This can in turn be of great advantage, for example, for a start-up phase of the motor and / or for an upper operating range at almost the maximum speed of the motor.
- the first eccentric element / unbalance element and / or the second is / are
- Eccentric element / unbalance element designed as an eccentric element / unbalance element rotatable about the axis of rotation and / or rotor shaft. This also allows the effective unbalanced mass to be changed in an advantageous manner and thus an increase and / or reduction of the effective unbalanced mass or the
- eccentric element / unbalance element rotatable about the axis of rotation and / or rotor shaft can be used as a function of the direction of rotation
- a first direction of rotation of the rotor unit and / or unbalance unit can be the effective unbalance mass in
- At least one stop element is as
- Stop provided for the eccentric element / unbalance element rotatable about the axis of rotation and / or rotor shaft. This measure enables a defined positioning of the eccentric element / unbalance element rotatable about the axis of rotation and / or rotor shaft, so that a defined, effective unbalance mass can advantageously be set, especially during engine operation, i.e. rotating the rotor unit.
- Advantageous uses of a device according to the invention can for example be for soil compaction or concrete technology or construction site technology or casting technology or sorting of Objects.
- other / further advantageous uses can also be implemented.
- Unbalance elements on the free shaft ends of the (vibrator) motors are dispensed with without replacement, their effect being advantageously shifted to the rotor or the rotor unit.
- the rotor is due to advantageous measures in terms of its
- Unbalance disks or unbalanced masses etc. make the vibration exciter device or the vibrator compact and extremely cost-effective, since a large part of the manufacturing or processing steps is advantageously eliminated.
- magnetic motors switched reluctance motors, synchronous reluctance motors or external or internal rotors can also be used.
- Design outside of the vibrator i.e. on one or both shaft ends, can be used to increase or decrease the installed unbalance mass, depending on the direction of rotation.
- Invention temporarily or completely take over the function of the previous or conventional eccentrics attached to the outside of the shaft ends.
- Vibration exciters according to the invention leads. In addition, the robustness increases and errors occur
- Figure 1 is a schematically shown cross section through a designed as an asynchronous motor, first electric motor according to the invention
- FIG. 2 shows a schematically illustrated cross section through a second electric motor designed as an asynchronous motor according to the invention
- FIG. 3 shows a schematically illustrated cross section through a third electric motor according to the invention designed as a synchronous motor
- FIG. 4 shows a schematically illustrated cross section through a fourth electric motor designed as an asynchronous motor according to the invention with a separate, radially adjustable imbalance weight,
- FIG. 5 shows a schematically illustrated cross section through a fifth electric motor designed as an asynchronous motor according to the invention with a separate, rotatable around the axis of rotation
- FIG. 6 shows a schematically illustrated longitudinal section through a sixth electric motor according to the invention with two arranged on the rotor shaft on both sides of the drive system of the rotor
- the electric motor 1 essentially comprises a rotor 2 and a stator 3 having an outer motor housing 4.
- the rotor 2 is e.g. designed according to the figures in such a way that it has a rotor shaft 16 or a rotor shaft 14 and a carrier 15 for electromagnetic
- stator 3 comprises, in a known manner, two so-called end shields 18 (see FIG. 6), which run along the axis of rotation and on both sides of the electromagnetic drive system
- a bearing unit 17 or, advantageously, one or two roller bearings 17 for supporting the rotatable rotor 2 are arranged.
- the bearing plates 18 or bearing receptacles 18 are part of the motor housing 4 in the sense of the invention, so that a completely closed motor housing 4 is realized in the sense of the invention. In this way, the penetration of dirt, dust and water can be prevented in an advantageous manner in a particularly effective manner, whereby high demands on the safety and service life of the engine 1 can be met.
- the rotor 2 is advantageously at the same time as an unbalance unit 5 according to the invention
- End shields 18 or the electromagnetic drive system may be present.
- the rotor 2 of the electric motor 1 designed as an asynchronous motor is not designed symmetrically with respect to the axis of rotation, but only takes up approximately half of the circular cross section. This means that the rotor 2 only extends over approximately 180 ° of the circumference and the other half of the cross section only comprises air 6 or is designed as a recess 6 in the sense of the invention and thus no material / metal or electromagnetic
- Center of gravity or cross-sectional area center of gravity mounted eccentrically or eccentrically with a distance to the axis of rotation
- an advantageous, relatively large imbalance is generated which, during operation or when the rotor 2 is rotating, means that the electric motor 1 advantageously generates vibrations or can be used as a vibrator / vibration exciter.
- Electric motor 1 has a torque that is approximately half that of an electric motor 1, in which fully the electromagnetic drive system would be present.
- the electric motor 1 is a synchronous machine with a circumferential arrangement
- Recess 6 or air 6 arranged that is held / positioned by a spring 11 oriented in the radial direction. Since the weight 10 does not have a circular shape, this is also designed as an imbalance 5 in the sense of the invention and along the The axis of rotation is arranged between the two end shields or bearings in the area of the electromagnetic drive system.
- the weight 10 is adjusted in the radial direction as a function of the speed of the rotor 2 and the spring force. So the effective unbalanced mass decreases with increasing speed, since the centrifugal force pushes the weight 10 radially outwards in the direction of the rotor shell. When the speed decreases, the weight 10 "wanders" again in the direction of the axis of rotation or
- separate weight 12 is present, which however is not arranged within the recess 6 of the rotor core, but axially offset, e.g. along the axis of rotation in a free space or another plane / layer between two laminated cores, but within a fully extending one
- Rotor shaft 14 As a result of this advantageous space and the advantageous shape of the weight 12, the latter is mounted rotatably about the axis of rotation or the rotor shaft 14.
- Stop 13 (cf. FIG. 5 a) with FIG. 5 b)).
- the stop 13 is aligned in the direction of the axis of rotation or parallel to the axis of rotation.
- the stop 13 is advantageously arranged within the above-mentioned intermediate space or extends between the above-mentioned two sheet metal stacks / layers / planes, which are correspondingly spaced from one another. So in the position of the weight 12 according to Figure 5 a) a subtraction of the unbalance of the Weight 12 with the unbalance of the rotor lamination package or the
- Rotor lamination pact or the rotor body realized and thus enlarged. This variability of the total imbalance in
- the electric motor 1 is designed according to the invention in such a way that according to the
- Rotor arm 15 are arranged / fixed on / on the rotor shaft 16. According to the invention, these two weights or
- Unbalance elements 5 are arranged between the two bearings 17 or ball bearings 17 and between the two end plates 18 of the motor housing 4. As a result, the two weights or
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019108503.9A DE102019108503A1 (de) | 2019-04-02 | 2019-04-02 | Schwingungserregervorrichtung zum Erzeugen von Schwingungen und/oder Vibrationen |
PCT/EP2020/058911 WO2020201194A1 (de) | 2019-04-02 | 2020-03-30 | Schwingungserregervorrichtung zum erzeugen von schwingungen und/oder vibrationen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3949088A1 true EP3949088A1 (de) | 2022-02-09 |
Family
ID=70058372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20715842.9A Pending EP3949088A1 (de) | 2019-04-02 | 2020-03-30 | Schwingungserregervorrichtung zum erzeugen von schwingungen und/oder vibrationen |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220200400A1 (de) |
EP (1) | EP3949088A1 (de) |
DE (1) | DE102019108503A1 (de) |
WO (1) | WO2020201194A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021213368A1 (de) | 2021-11-26 | 2023-06-01 | Terra Infrastructure Gmbh | Unwuchteinrichtung, sowie Vibrationsrammgerät |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2688102A (en) * | 1953-01-29 | 1954-08-31 | Jackson Vibrators | Electric vibrating motor |
DE1770400U (de) * | 1957-07-06 | 1958-07-17 | Hermann Wacker | Vibrationsgeraet zum verdichten von stoffen aller art mit elektrischem antrieb. |
CH465935A (de) * | 1967-10-27 | 1968-11-30 | Meyer Fa Rudolf | Vibrator mit Kurzschlussankermotor |
DE2163019C3 (de) * | 1971-12-18 | 1974-06-20 | Wacker-Werke Kg, 8000 Muenchen | Elektrisch angetriebener Unwuchtvibrator |
US4034246A (en) * | 1974-12-26 | 1977-07-05 | Akinobu Nakashima | Variable vibrating motor |
DE2724247A1 (de) * | 1977-05-28 | 1978-12-07 | Bosch Gmbh Robert | Elektromotorisch angetriebener vibrator |
JPH0837753A (ja) * | 1992-10-14 | 1996-02-06 | Tokyo Parts Ind Co Ltd | 偏心電機子鉄心を有する小型振動モータ |
JP2814908B2 (ja) * | 1994-02-09 | 1998-10-27 | 日本電気株式会社 | バイブレーションモータ |
US5619181A (en) * | 1994-11-21 | 1997-04-08 | Motorola, Inc. | Vibratory alerting device with audible sound generator |
JP2994358B1 (ja) * | 1998-09-16 | 1999-12-27 | 静岡日本電気株式会社 | バイブレーションモータ |
DE19916378C2 (de) * | 1999-04-12 | 2003-08-21 | Wacker Construction Equipment | Innenrüttelvorrichtung mit veränderbarer Schwingungsamplitude |
DE10031617A1 (de) * | 2000-06-29 | 2002-01-17 | Wacker Werke Kg | Vibrationserreger mit Amplitudenverstellung |
US6580189B2 (en) * | 2001-07-24 | 2003-06-17 | Derrick Manufacturing Corporation | Vibratory motor having a self-contained continuous bearing lubrication system |
KR20030026818A (ko) * | 2002-03-28 | 2003-04-03 | 홍종우 | 편심 코어를 이용한 진동모터 |
US6856058B1 (en) * | 2004-03-24 | 2005-02-15 | Derrick Corporation | Vibratory motor with oil and flame seal assembly |
TW200635186A (en) * | 2004-12-28 | 2006-10-01 | Namiki Precision Jewel Co Ltd | Vibrating motor with rotor-type |
DE202006001445U1 (de) * | 2006-01-31 | 2006-04-13 | Eviro Elektromaschinenbau & Metall Gmbh Eibenstock | Vibrationsantrieb mit drehrichtungsabhängig verstellbaren Unwuchtgewichten |
DE202007005283U1 (de) * | 2007-03-07 | 2007-07-12 | Abi Gmbh | Schwingungserreger |
JP2009254085A (ja) * | 2008-04-04 | 2009-10-29 | Minebea Motor Manufacturing Corp | 振動モータ |
JP5468488B2 (ja) * | 2010-01-25 | 2014-04-09 | ミネベア株式会社 | 振動モータおよび振動モータ用ロータの製造方法 |
JP5764110B2 (ja) * | 2012-11-16 | 2015-08-12 | 日本電産コパル株式会社 | 振動モータ |
DE102014019139A1 (de) * | 2014-12-23 | 2016-06-23 | Rsm Grundbau Gmbh + Willi Meyer Bauunternehmen Gmbh In Gbr | Tiefenrüttler mit veränderbarer Unwucht |
DE202016001059U1 (de) * | 2016-02-18 | 2016-03-18 | Gerhard Kocherscheidt | Elektromotor |
US10476348B2 (en) * | 2017-12-18 | 2019-11-12 | GM Global Technology Operations LLC | Electric motor having asymmetric configuration for generating unbalanced force |
-
2019
- 2019-04-02 DE DE102019108503.9A patent/DE102019108503A1/de active Pending
-
2020
- 2020-03-30 WO PCT/EP2020/058911 patent/WO2020201194A1/de unknown
- 2020-03-30 US US17/600,714 patent/US20220200400A1/en not_active Abandoned
- 2020-03-30 EP EP20715842.9A patent/EP3949088A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
US20220200400A1 (en) | 2022-06-23 |
WO2020201194A1 (de) | 2020-10-08 |
DE102019108503A1 (de) | 2020-10-08 |
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