CN105782339B - Variable inertia variable damping torsional vibration damper - Google Patents
Variable inertia variable damping torsional vibration damper Download PDFInfo
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- CN105782339B CN105782339B CN201610113062.2A CN201610113062A CN105782339B CN 105782339 B CN105782339 B CN 105782339B CN 201610113062 A CN201610113062 A CN 201610113062A CN 105782339 B CN105782339 B CN 105782339B
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- variable
- inertia
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- vibration damper
- torsional vibration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of Variable inertia variable damping torsional vibration damper, including Variable inertia component and variable damping component；Variable inertia component includes left end disc, right end cap, inner-core, permanent magnet, Inside coil and the ferrofluid of variable-quality distribution；Change the size for Distribution of Magnetic Field at ferrofluid and size, continuously adjusting Variable inertia component rotary inertia by Inside coil and permanent magnet combination generation magnetic field；The present invention can be separately as internal combustion engine front end torsional vibration damper, it can also be connected as the secondary flywheel of double mass flywheel with clutch, power train is damped and rotary inertia can need automatic adjusument according to control algolithm, and the twisting vibration to power train is effectively suppressed.The present invention has the advantages that compact-sized, output damping torque is big, rotary inertia adjustable range is wide, dynamic response is fast, be advantageous to improve the fuel economy of internal combustion engine, also it can apply in space zero-g environment, therefore have broad application prospects in class mechanical device is rotated.
Description
Technical field
The present invention relates to a kind of torsional vibration damper, more particularly to a kind of Variable inertia variable damping torsional vibration damper.
Background technology
Bent axle is most important part in engine.It bears the power that connecting rod transmits, and is transformed into torque and passes through song
Axle exports and drives other annexes on engine to work.Bent axle is by the centrifugal force of gyrating mass, the gas inertia of mechanical periodicity
The collective effect of power and reciprocal inertia force, makes bent axle bear the effect of flexion torsion load, bent axle is produced twisting vibration,
Cause shafting crackle and fracture, parts wear aggravation, the common method for reducing crankshaft torsional vibrations in the prior art is in song
Torsional vibration damper is installed in axle front end, and current torsional vibration damper is fixedly mounted on crankshaft end, it is impossible to changes vibration damping
Torsion damping force between device and bent axle, and can only have preferable shock attenuation result to the vibration of a certain specific frequency, if
The vibration of different frequency is offseted, a series of this torsional vibration damper need to be added, complicated, cost is high.
The content of the invention
In view of this, can be separately as internal combustion it is an object of the invention to provide a kind of Variable inertia variable damping torsional vibration damper
It machine front end torsional vibration damper, can also be connected with clutch as the secondary flywheel of double mass flywheel, subtract available for connection torsion
Vibrating device and bent axle, the torsion damping force between vibration absorber and bent axle can be changed, power train damping and rotary inertia can roots
Automatic adjusument is needed according to control algolithm, the twisting vibration to power train is effectively suppressed.The present invention have it is compact-sized,
The advantages that damping torque is big, rotary inertia adjustable range is wide, dynamic response is fast is exported, is reducing torque output of combustion engine fluctuation
Meanwhile be advantageous to improve the fuel economy of internal combustion engine, it can also be applied in space zero-g environment, therefore in rotation class machinery dress
Have broad application prospects in putting.
A kind of Variable inertia variable damping torsional vibration damper, including Variable inertia component and variable damping component；The Variable inertia component
Include the ferrofluid of left end disc, right end cap, inner-core, permanent magnet, Inside coil and variable-quality distribution；The left end
Disk, right end cap are non-magnetic part, and left end disc, right end cap and inner-core form inner chamber；The ferrofluid is located at interior intracavitary, leads to
Cross Inside coil and permanent magnet combination produces magnetic field and changed to Distribution of Magnetic Field at ferrofluid and size, continuously adjust Variable inertia group
The size of part rotary inertia；The variable damping component includes inertia rings, impeller, outer core, external coil and magnetic flow liquid；Institute
The shell for stating outer core and inertia variable component fastens；The exocoel of sealing is formed between inertia rings and outer core；Outside iron
Core is provided with equally distributed some U-shaped runners, and the gateway of runner is located at impeller both sides, and exocoel is with runner built with magnetorheological
Liquid；Magnetic field size in working clearance magnetic flow liquid is changed by outer coil current size, continuously adjusts inertia rings and outside iron
Torsion damping torque between core；Outer core rotates in same direction at the same speed with impeller with inertia variable component, when inertia rings and outside
There is speed discrepancy in iron core, magnetic flow liquid is in helical flow mode of operation under impeller effect, can effectively extend magnetic flow liquid
Working region length, improve and reverse damping force output.
Further, the ferrofluid intellectual material includes the dispersed particle that carrier fluid and yardstick are seen for Jie, and carrier fluid is low viscous
Spend fluid；The dispersed particle is hollow iron shot or iron powder.
Further, the Variable inertia component also includes the demarcation strip for being fixed on interior cavity wall.
Further, it is rotatablely connected between the inertia rings and outer core by bearing, the axially inner side pair of the bearing
Exocoel is answered to be provided with outside framework oil seal.
Further, the joint of the Inside coil and external coil is respectively welded in four copper rings in right end cap notch
On, separated between copper ring and end cap with insulating barrier, copper ring external connection brush is realized provides direct current telecommunications to internal, external coil
Number.
The beneficial effects of the invention are as follows：The present invention be able to can also be used as double separately as internal combustion engine front end torsional vibration damper
The secondary flywheel of mass flywheel is connected with clutch, and power train damping and rotary inertia can need adaptive adjust according to control algolithm
Section, the twisting vibration to power train are effectively suppressed.The present invention has that compact-sized, output damping torque is big, it is used to rotate
The advantages that adjustable range is wide, dynamic response is fast is measured, while torque output of combustion engine fluctuation is reduced, is advantageous to improve internal combustion engine
Fuel economy, can also be applied in space zero-g environment, therefore have broad application prospects in class mechanical device is rotated.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is blade wheel structure schematic diagram.
Embodiment
Fig. 1 is the structural representation of the present invention；Fig. 2 is Fig. 1 A-A sectional views, and Fig. 3 is blade wheel structure schematic diagram；Such as figure
It is shown：The Variable inertia variable damping torsional vibration damper of the present embodiment, including Variable inertia component and variable damping component；The Variable inertia group
Part includes left end disc 1, right end cap 2, inner-core 3, Inside coil 4, the ferrofluid 5 and permanent magnet 6 of variable-quality distribution；Institute
State left end disc 1, right end cap 2 is non-magnet material；The interior of closing is formed between the left end disc 1, right end cap 2 and inner-core 3
Chamber；The ferrofluid 5 is located at interior intracavitary；The inner-core 3 is located at the radially inner side of inner chamber, is machined with inner-core recessed
Groove；The Inside coil 4 is respectively positioned in groove with permanent magnet 6, and Inside coil 4 is wound on permanent magnet 6；Pass through Inside coil 4
Combined with permanent magnet 6 and produce magnetic field change to Distribution of Magnetic Field at ferrofluid and size, continuously adjusted Variable inertia component and rotate and be used to
The size of amount；
The variable damping component includes outer core 7, inertia rings 8, impeller 9, external coil 10 and magnetic flow liquid 11；It is outside
Iron core 7 is loop configuration, is fixed on the outside of left end disc 1 and right end cap 2 and is anchored on left end disc 1 and right end cap 2 by screw
On；The inertia rings 8 are rotationally connected with outer core 7 and the exocoel of closing are formed between outer core 7；On outer core 7
Provided with equally distributed some U-shaped runners 12, the gateway of runner is located at the both sides of impeller 9, and the magnetic flow liquid 11 is located at exocoel
In runner 12；The external coil 10 be wound in outer core 7 be used to controlling Distribution of Magnetic Field at outer intracavitary magnetic flow liquid with
Size is to change the torsion damping force between outer core 7 and inertia rings 8；By applying different size of electricity to external coil 10
Stream changes magnetic field size in working clearance magnetic flow liquid, it is possible to achieve continuously adjusts the torsion between outer core 7 and inertia rings 8
Turn damping torque；Outer core 7 rotates in same direction at the same speed with impeller 9 with inertia variable component, when outer core 7 and inertia rings 8 are deposited
In speed discrepancy, magnetic flow liquid 11 is in helical flow mode of operation under the effect of impeller 9, can effectively extend the work of magnetic flow liquid
Zone length, improve and reverse damping force output.
When bent axle produces twisting vibration, the size of current of Inside coil 4 is adjusted according to crankshaft vibration frequency, and then control
The inertia of inertia variable component, change the intrinsic frequency of shock absorption system to adapt to the vibration frequency of bent axle, it is right within the specific limits
The twisting vibration of bent axle different frequency produces preferable shock attenuation result, can also adjust the big of electric current in external coil 10 as needed
It is small to change the state of magnetic flow liquid 11, change the torsion damping force between outer core 7 and inertia rings 8, and power train damps
Automatic adjusument can be needed according to control algolithm with rotary inertia, the twisting vibration to power train is effectively suppressed.Have
The advantages that compact-sized, output damping torque is greatly, rotary inertia adjustable range is wide, dynamic response is fast, reducing internal combustion engine output
While torque ripple, be advantageous to improve the fuel economy of internal combustion engine, can also be applied in space zero-g environment, therefore revolving
Turn to have broad application prospects in class mechanical device.
In the present embodiment, the ferrofluid intellectual material 5 of the variable-quality distribution includes carrier fluid and yardstick to be situated between what is seen
Dispersed particle, carrier fluid are low viscosity fluid；The dispersed particle is hollow iron shot or iron powder.
In the present embodiment, the Variable inertia component also includes the demarcation strip 13 for being fixed on interior cavity wall；Demarcation strip 13 is along interior
The radial arrangement of chamber, for inner chamber to be separated into the multiple small chambers circumferentially arranged, variable-quality can be distributed by demarcation strip
The flowing of ferrofluid 5 play guide effect and avoid the dispersed particle in ferrofluid 5 from excessively concentrating.
In the present embodiment, it is rotatablely connected between the outer core 7 and inertia rings 8 by bearing 14, the bearing 14
Axially inner side is provided with outside framework oil seal 15, for the sealing to exocoel.
In the present embodiment, the joint of the Inside coil 4 and external coil 10 is respectively welded in the notch of right end cap 2
On four copper rings 16, separated between copper ring 16 and right end cap 2 with insulating barrier 17, the external connection brush of copper ring 16 realize to it is internal,
External coil provides DC signal.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (4)
- A kind of 1. Variable inertia variable damping torsional vibration damper, it is characterised in that：Including Variable inertia component and variable damping component；The change Inertia component includes left end disc, right end cap, inner-core, permanent magnet, Inside coil and the ferrofluid of variable-quality distribution；Institute State left end disc, right end cap is non-magnetic part, left end disc, right end cap and inner-core form inner chamber；The ferrofluid is positioned at interior Intracavitary, magnetic field is produced by Inside coil and permanent magnet combination and changed to Distribution of Magnetic Field at ferrofluid and size, is continuously adjusted The size of Variable inertia component rotary inertia；The variable damping component includes inertia rings, impeller, outer core, external coil and magnetic Rheology liquid；The shell of the outer core and inertia variable component fastens；The outer of sealing is formed between inertia rings and outer core Chamber；The outer core is provided with equally distributed some U-shaped runners, and the gateway of runner is located at impeller both sides, exocoel and stream Road is built with magnetic flow liquid；Magnetic field size in working clearance magnetic flow liquid is changed by outer coil current size, continuously adjusted Torsion damping torque between inertia rings and outer core；Outer core rotates in same direction at the same speed with impeller with inertia variable component, When inertia rings and outer core have speed discrepancy, magnetic flow liquid is in helical flow mode of operation under impeller effect；The change Inertia component also includes the demarcation strip for being fixed on interior cavity wall.
- 2. Variable inertia variable damping torsional vibration damper according to claim 1, it is characterised in that：The ferrofluid belongs to one The new intellectual material of kind, ferromagnetic medium yardstick is seen to be situated between, including carrier fluid and dispersed particle, and carrier fluid is low viscosity fluid or water etc.； The dispersed particle is hollow iron shot or iron powder.
- 3. Variable inertia variable damping torsional vibration damper according to claim 1, it is characterised in that：The inertia rings and outside iron It is rotatablely connected between core by bearing, the axially inner side of the bearing corresponds to exocoel and is provided with outside framework oil seal.
- 4. Variable inertia variable damping torsional vibration damper according to claim 1, it is characterised in that：The Inside coil and outside The joint of coil is respectively welded on four copper rings in right end cap notch, is separated between copper ring and end cap with insulating barrier, copper ring External connection brush is realized provides DC signal to internal, external coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113062.2A CN105782339B (en) | 2016-02-29 | 2016-02-29 | Variable inertia variable damping torsional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113062.2A CN105782339B (en) | 2016-02-29 | 2016-02-29 | Variable inertia variable damping torsional vibration damper |
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| Publication Number | Publication Date |
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| CN105782339A CN105782339A (en) | 2016-07-20 |
| CN105782339B true CN105782339B (en) | 2017-12-12 |
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| CN201610113062.2A Active CN105782339B (en) | 2016-02-29 | 2016-02-29 | Variable inertia variable damping torsional vibration damper |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107956839B (en) * | 2017-11-27 | 2019-06-28 | 吉林大学 | A kind of compound Adjustable transmission system torsional vibration damper with particle damping and electromagnetic damping |
| CN108425993B (en) * | 2018-04-23 | 2019-08-23 | 长春理工大学 | A kind of Variable inertia variable damping torsion damping device |
| CN108730410B (en) * | 2018-07-02 | 2024-01-26 | 浙江大学 | Adjustable inertial mass damper |
| CN109630596B (en) * | 2018-12-26 | 2020-09-11 | 嘉兴学院 | Rotary type damping-adjustable silicone oil-magnetorheological torsional vibration damper |
| CN109654162B (en) * | 2019-02-01 | 2024-04-12 | 青岛理工大学 | Active composite damping-variable rotation control device |
| CN110259872B (en) * | 2019-06-27 | 2020-09-08 | 重庆大学 | Magneto-rheological inertia variable damping torsional vibration damper |
| CN110460204B (en) * | 2019-08-12 | 2020-09-18 | 北京控制工程研究所 | Magnetic fluid flywheel and design method |
| CN111623080B (en) * | 2020-05-13 | 2021-07-23 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
| CN114776753B (en) * | 2022-03-11 | 2024-06-14 | 嘉兴学院 | Rotary type linear vibration damping magnetorheological fluid damper |
| CN115163724B (en) * | 2022-08-11 | 2024-06-04 | 重庆大学 | Magneto-rheological inertia damper |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2138430C3 (en) * | 1970-09-18 | 1978-06-15 | Veb Schwermaschinenbau Karl Liebknecht Magdeburg-Kombinat Fuer Dieselmotoren Und Industrieanlagen, Ddr 3011 Magdeburg | Method for applying bearing metal to the damper masses of torsional vibration dampers |
| CN102168736B (en) * | 2011-05-05 | 2012-07-11 | 天津大学 | Magnetorheological torsional vibration damper for engine |
| CN204253727U (en) * | 2014-09-25 | 2015-04-08 | 长安大学 | The torsional vibration damper that a kind of damping is adjustable |
| CN204284298U (en) * | 2014-11-14 | 2015-04-22 | 长安大学 | A kind of MR fluid shock absorber of powering based on brush |
| CN204312618U (en) * | 2014-12-12 | 2015-05-06 | 吉林大学 | Embedded rotator type magnetic flow liquid double mass flywheel torshional vibration damper |
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2016
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