CN105782339A - Variable-inertia and variable-damping torsion damper - Google Patents
Variable-inertia and variable-damping torsion damper Download PDFInfo
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- CN105782339A CN105782339A CN201610113062.2A CN201610113062A CN105782339A CN 105782339 A CN105782339 A CN 105782339A CN 201610113062 A CN201610113062 A CN 201610113062A CN 105782339 A CN105782339 A CN 105782339A
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- outer core
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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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- 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 variable-inertia and variable-damping torsion damper. The variable-inertia and variable-damping torsion damper comprises a variable-inertia assembly and a variable-damping assembly; the variable-inertia assembly comprises a left end disk, a right end cover, an inner iron core, a permanent magnet, an inner coil and variable-mass-distribution ferrofluid; and the inner coil and the permanent magnet are combined to generate a magnetic field to change the distribution and the magnitude of a magnetic field at the position of the ferrofluid, and the magnitude of rotating inertia of the variable-inertia assembly is continuously adjusted. The variable-inertia and variable-damping torsion damper can independently serve as a front end torsion damper of an internal combustion engine and can also serve as a secondary flywheel of a dual-mass flywheel to be connected with a clutch; the transmission system damping and the rotating inertia can be adjusted in a self-adaptive manner according to requirements of a control algorithm; and torsion vibration of a transmission system is effectively inhibited. The variable-inertia and variable-damping torsion damper has the beneficial effects that the structure is compact, output damping torque is large, the rotating inertia adjustment range is wide, and the dynamic response is fast; and the fuel oil economy of the internal combustion engine can be improved easily, and the variable-inertia and variable-damping torsion damper can also be applied in a zero-gravity environment of the aerospace and thus has wide application prospects in rotating type mechanical devices.
Description
Technical field
The present invention relates to a kind of torsional vibration damper, particularly relate to a kind of Variable inertia mutative damp torsional vibration damper.
Background technology
Bent axle is most important parts in electromotor.It bears the power that connecting rod transmits, and is transformed into torque and is exported by bent axle and drive other adnexaes work on electromotor.Bent axle is subject to the centrifugal force of gyrating mass, the gas inertia power of mechanical periodicity and the combined effect of reciprocal inertia force, bent axle is made to bear the effect of flexion torsion load, bent axle is easily made to produce twisting vibration, cause axle system crackle and fracture, parts wear aggravates, the common method reducing crankshaft torsional vibrations in prior art is to install torsional vibration damper at crankshaft front end, and current torsional vibration damper is all fixedly mounted on crankshaft end, the torsion damping force between vibration absorber and bent axle can not be changed, and the vibration of a certain characteristic frequency can only be had good shock attenuation result, to offset the vibration of different frequency, a series of this torsional vibration damper need to be added, structure is complicated, cost is high.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of Variable inertia mutative damp torsional vibration damper, can separately as internal combustion engine front end torsional vibration damper, can also be connected with clutch as the secondary flywheel of double mass flywheel, can be used for connecting torsional vibration damper and bent axle, could alter that the torsion damping force between vibration absorber and bent axle, power train damping and rotary inertia can need Automatic adjusument according to control algolithm, and the twisting vibration of power train is effectively suppressed.The present invention has the advantages such as compact conformation, output damping torque is big, rotary inertia range of accommodation width, dynamic response are fast, while reducing torque output of combustion engine fluctuation, be conducive to improving the fuel economy of internal combustion engine, also can apply in space zero gravity environment, therefore have broad application prospects in rotating class machinery.
A kind of Variable inertia mutative damp torsional vibration damper, including Variable inertia assembly and mutative damp assembly；Described Variable inertia assembly includes the ferrofluid of left end disc, right end cap, inner-core, permanent magnet, Inside coil and variable-quality distribution；Described left end disc, right end cap are non-magnetic part, and left end disc, right end cap and inner-core form inner chamber；Described ferrofluid is positioned at intracavity, produces magnetic field by Inside coil and permanent magnet combination and changes ferrofluid place Distribution of Magnetic Field and size, continuously adjusts the size of Variable inertia assembly rotary inertia；Described mutative damp assembly includes inertia rings, impeller, outer core, external coil and magnetic flow liquid；The shell of described outer core and inertia variable assembly fastens；The exocoel of sealing is formed between inertia rings and outer core；Outer core is provided with equally distributed some U-shaped runners, and the gateway of runner is positioned at impeller both sides, and exocoel and runner are built with magnetic flow liquid；Change magnetic field size in working clearance magnetic flow liquid by outer coil current size, continuously adjust the torsion damping torque between inertia rings and outer core；Outer core and impeller are with the synchronized rotating in same direction of inertia variable assembly, when inertia rings and outer core exist speed discrepancy, magnetic flow liquid is in helical flow mode of operation under impeller effect, can effectively extend the working region length of magnetic flow liquid, improves and reverses damping force output.
Further, described ferrofluid intellectual material includes carrier fluid and yardstick is the dispersed particle seen that is situated between, and carrier fluid is low viscosity fluid；Described dispersed particle is hollow iron shot or iron powder.
Further, described Variable inertia assembly also includes the demarcation strip that is fixed on interior cavity wall.
Further, being rotationally connected by bearing between described inertia rings and outer core, the axially inner side correspondence exocoel of described bearing is provided with outside framework oil seal.
Further, the joint of described Inside coil and external coil is respectively welded on four copper rings in right end cap notch, separates with insulating barrier between copper ring and end cap, and copper ring external connection brush realizes providing DC signal to internal, external coil.
The invention has the beneficial effects as follows: the present invention can separately as internal combustion engine front end torsional vibration damper, can also be connected with clutch as the secondary flywheel of double mass flywheel, power train damping and rotary inertia can need Automatic adjusument according to control algolithm, and the twisting vibration of power train is effectively suppressed.The present invention has the advantages such as compact conformation, output damping torque is big, rotary inertia range of accommodation width, dynamic response are fast, while reducing torque output of combustion engine fluctuation, be conducive to improving the fuel economy of internal combustion engine, also can apply in space zero gravity environment, therefore have broad application prospects in rotating class machinery.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is blade wheel structure schematic diagram.
Detailed description of the invention
Fig. 1 is the structural representation of the present invention；Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is blade wheel structure schematic diagram；As shown in the figure: the Variable inertia mutative damp torsional vibration damper of the present embodiment, including Variable inertia assembly and mutative damp assembly；Described Variable inertia assembly include left end disc 1, right end cap 2, inner-core 3, Inside coil 4, variable-quality distribution ferrofluid 5 and permanent magnet 6；Described left end disc 1, right end cap 2 are non-magnet material；The inner chamber of closing is formed between described left end disc 1, right end cap 2 and inner-core 3；Described ferrofluid 5 is positioned at intracavity；Described inner-core 3 is positioned at the radially inner side of inner chamber, inner-core is processed fluted；Described Inside coil 4 is respectively positioned in groove with permanent magnet 6, and Inside coil 4 is wound on permanent magnet 6；Combined by Inside coil 4 and permanent magnet 6 and produce magnetic field change to ferrofluid place Distribution of Magnetic Field and size, continuously adjust the size of Variable inertia assembly rotary inertia；
Described mutative damp assembly includes outer core 7, inertia rings 8, impeller 9, external coil 10 and magnetic flow liquid 11；Outer 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；Described inertia rings 8 be rotationally connected with outer core 7 and and outer core 7 between form the exocoel of closing；Outer core 7 is provided with equally distributed some U-shaped runners 12, and the gateway of runner is positioned at impeller 9 both sides, and described magnetic flow liquid 11 is positioned at exocoel and runner 12；Described external coil 10 is wound in outer core 7 for controlling Distribution of Magnetic Field and the size torsion damping force to change between outer core 7 and inertia rings 8 at outer intracavity magnetic flow liquid place；Magnetic field size in working clearance magnetic flow liquid is changed, it is possible to achieve continuously adjust the torsion damping torque between outer core 7 and inertia rings 8 by external coil 10 is applied different size of electric current；Outer core 7 and impeller 9 are with the synchronized rotating in same direction of inertia variable assembly, when outer core 7 and inertia rings 8 exist speed discrepancy, magnetic flow liquid 11 is in helical flow mode of operation under impeller 9 acts on, and can effectively extend the working region length of magnetic flow liquid, improves and reverses damping force output.
When bent axle produces twisting vibration, Inside coil 4 size of current is adjusted according to crankshaft vibration frequency, and then control the inertia of inertia variable assembly, the natural frequency changing shock absorption system adapts to the frequency of vibration of bent axle, within the specific limits the twisting vibration of bent axle different frequency is produced good shock attenuation result, also can adjust in external coil 10 size of electric current as required 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 damping and rotary inertia can need Automatic adjusument according to control algolithm, the twisting vibration of power train is effectively suppressed.There is the advantages such as compact conformation, output damping torque is big, rotary inertia range of accommodation width, dynamic response are fast, while reducing torque output of combustion engine fluctuation, be conducive to improving the fuel economy of internal combustion engine, also can apply in space zero gravity environment, therefore have broad application prospects in rotating class machinery.
In the present embodiment, the ferrofluid intellectual material 5 of described variable-quality distribution includes carrier fluid and yardstick is the dispersed particle seen that is situated between, and carrier fluid is low viscosity fluid；Described dispersed particle is hollow iron shot or iron powder.
In the present embodiment, described Variable inertia assembly also includes the demarcation strip 13 being fixed on interior cavity wall；Demarcation strip 13 is along the radial arrangement of inner chamber, for inner chamber is separated into the multiple loculuses circumferentially arranged, by demarcation strip, the flowing of the ferrofluid 5 of variable-quality distribution can be played guide effect and avoid the dispersed particle in ferrofluid 5 excessively to concentrate.
In the present embodiment, being rotationally connected by bearing 14 between described outer core 7 and inertia rings 8, the axially inner side of described bearing 14 is provided with outside framework oil seal 15, for the sealing to exocoel.
In the present embodiment, the joint of described Inside coil 4 and external coil 10 is respectively welded on four copper rings 16 in the notch of right end cap 2, separating with insulating barrier 17 between copper ring 16 and right end cap 2, copper ring 16 external connection brush realizes providing DC signal to internal, external coil.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (5)
1. a Variable inertia mutative damp torsional vibration damper, it is characterised in that: include Variable inertia assembly and mutative damp assembly；Described Variable inertia assembly includes the ferrofluid of left end disc, right end cap, inner-core, permanent magnet, Inside coil and variable-quality distribution；Described left end disc, right end cap are non-magnetic part, and left end disc, right end cap and inner-core form inner chamber；Described ferrofluid is positioned at intracavity, produces magnetic field by Inside coil and permanent magnet combination and changes ferrofluid place Distribution of Magnetic Field and size, continuously adjusts the size of Variable inertia assembly rotary inertia；Described mutative damp assembly includes inertia rings, impeller, outer core, external coil and magnetic flow liquid；The shell of described outer core and inertia variable assembly fastens；The exocoel of sealing is formed between inertia rings and outer core；Described outer core is provided with equally distributed some U-shaped runners, and the gateway of runner is positioned at impeller both sides, and exocoel and runner are built with magnetic flow liquid；Change magnetic field size in working clearance magnetic flow liquid by outer coil current size, continuously adjust the torsion damping torque between inertia rings and outer core；Outer core and impeller are with the synchronized rotating in same direction of inertia variable assembly, and when inertia rings and outer core exist speed discrepancy, magnetic flow liquid is in helical flow mode of operation under impeller effect.
2. Variable inertia mutative damp torsional vibration damper according to claim 1, it is characterised in that: described ferrofluid belongs to a kind of new intellectual material, and ferromagnetic medium yardstick is seen for being situated between, and including carrier fluid and dispersed particle, carrier fluid is low viscosity fluid or water etc.；Described dispersed particle is hollow iron shot or iron powder.
3. Variable inertia mutative damp torsional vibration damper according to claim 1, it is characterised in that: described Variable inertia assembly also includes the demarcation strip being fixed on interior cavity wall.
4. Variable inertia mutative damp torsional vibration damper according to claim 1, it is characterised in that: being rotationally connected by bearing between described inertia rings and outer core, the axially inner side correspondence exocoel of described bearing is provided with outside framework oil seal.
5. Variable inertia mutative damp torsional vibration damper according to claim 1, it is characterized in that: the joint of described Inside coil and external coil is respectively welded on four copper rings in right end cap notch, separating with insulating barrier between copper ring and end cap, copper ring external connection brush realizes providing DC signal to internal, external coil.
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| CN201610113062.2A CN105782339B (en) | 2016-02-29 | 2016-02-29 | Variable inertia variable damping torsional vibration damper |
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| CN201610113062.2A CN105782339B (en) | 2016-02-29 | 2016-02-29 | Variable inertia variable damping torsional vibration damper |
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| CN105782339B CN105782339B (en) | 2017-12-12 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956839A (en) * | 2017-11-27 | 2018-04-24 | 吉林大学 | A kind of compound Adjustable transmission system torsional vibration damper with particle damping and electromagnetic damping |
| CN108425993A (en) * | 2018-04-23 | 2018-08-21 | 长春理工大学 | A kind of Variable inertia variable damping torsion damping device |
| CN108730410A (en) * | 2018-07-02 | 2018-11-02 | 浙江大学 | Adjustable inertia mass damper |
| CN109630596A (en) * | 2018-12-26 | 2019-04-16 | 嘉兴学院 | One kind rotatably damping adjustable silicone oil-magnetorheological torsional vibration damper |
| CN109654162A (en) * | 2019-02-01 | 2019-04-19 | 青岛理工大学 | active composite variable damping rotation control device |
| CN110259872A (en) * | 2019-06-27 | 2019-09-20 | 重庆大学 | Magnetorheological Variable inertia variable damping torsional vibration damper |
| CN110460204A (en) * | 2019-08-12 | 2019-11-15 | 北京控制工程研究所 | A kind of magnetic fluid flywheel and design method |
| CN111623080A (en) * | 2020-05-13 | 2020-09-04 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
| CN114776753A (en) * | 2022-03-11 | 2022-07-22 | 嘉兴学院 | Rotary linear vibration damping magnetorheological fluid damper |
| CN115163724A (en) * | 2022-08-11 | 2022-10-11 | 重庆大学 | Magneto-rheological inertia damper |
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| DE2138430B2 (en) * | 1970-09-18 | 1977-10-27 | Fl 6B 4-00 | Metal application process for torsional damper weight - uses magnetically shaped endless thin walled ring of polygonal form |
| CN102168736A (en) * | 2011-05-05 | 2011-08-31 | 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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Patent Citations (5)
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| DE2138430B2 (en) * | 1970-09-18 | 1977-10-27 | Fl 6B 4-00 | Metal application process for torsional damper weight - uses magnetically shaped endless thin walled ring of polygonal form |
| CN102168736A (en) * | 2011-05-05 | 2011-08-31 | 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 |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107956839A (en) * | 2017-11-27 | 2018-04-24 | 吉林大学 | A kind of compound Adjustable transmission system torsional vibration damper with particle damping and electromagnetic damping |
| CN108425993A (en) * | 2018-04-23 | 2018-08-21 | 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 |
| CN108730410A (en) * | 2018-07-02 | 2018-11-02 | 浙江大学 | Adjustable inertia mass damper |
| CN109630596A (en) * | 2018-12-26 | 2019-04-16 | 嘉兴学院 | One kind rotatably damping adjustable silicone oil-magnetorheological torsional vibration damper |
| CN109630596B (en) * | 2018-12-26 | 2020-09-11 | 嘉兴学院 | Rotary type damping-adjustable silicone oil-magnetorheological torsional vibration damper |
| CN109654162A (en) * | 2019-02-01 | 2019-04-19 | 青岛理工大学 | active composite variable damping rotation control device |
| CN109654162B (en) * | 2019-02-01 | 2024-04-12 | 青岛理工大学 | Active composite damping-variable rotation control device |
| CN110259872A (en) * | 2019-06-27 | 2019-09-20 | 重庆大学 | Magnetorheological Variable inertia variable damping torsional vibration damper |
| CN110460204A (en) * | 2019-08-12 | 2019-11-15 | 北京控制工程研究所 | A kind of magnetic fluid flywheel and design method |
| CN110460204B (en) * | 2019-08-12 | 2020-09-18 | 北京控制工程研究所 | Magnetic fluid flywheel and design method |
| CN111623080A (en) * | 2020-05-13 | 2020-09-04 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
| CN114776753A (en) * | 2022-03-11 | 2022-07-22 | 嘉兴学院 | Rotary linear vibration damping magnetorheological fluid damper |
| CN115163724A (en) * | 2022-08-11 | 2022-10-11 | 重庆大学 | Magneto-rheological inertia damper |
| CN115163724B (en) * | 2022-08-11 | 2024-06-04 | 重庆大学 | Magneto-rheological inertia damper |
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| CN105782339B (en) | 2017-12-12 |
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