CN103711834B - Self-adaptive electromagnetic induction type current becomes torshional vibration damper - Google Patents
Self-adaptive electromagnetic induction type current becomes torshional vibration damper Download PDFInfo
- Publication number
- CN103711834B CN103711834B CN201410013001.XA CN201410013001A CN103711834B CN 103711834 B CN103711834 B CN 103711834B CN 201410013001 A CN201410013001 A CN 201410013001A CN 103711834 B CN103711834 B CN 103711834B
- Authority
- CN
- China
- Prior art keywords
- housing
- inner core
- core disk
- magnet inner
- magnetic induction
- 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.)
- Active
Links
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of self-adaptive electromagnetic induction type current and become torshional vibration damper, its structure is: housing is equipped with antifriction bush, antifriction bush is provided with installation gap in order to embed magnet inner core disk, gap between housing and magnet inner core disk is marked with Damping fluid, and the surface of housing is tied with the magnetic induction coil of UNICOM.Antifriction bush contact with magnet inner core disk bottom frictional position surface and inner housing lower end, be provided with some conducting plates.Be connected to controller by wire after each conducting plate serial connection, the current output terminal of magnetic induction coil is attached to A/D converter.Electric current is supplied controller to provide control electric current by A/D converter after interchange becomes direct current.Antifriction bush and magnet inner core disk are annular.The damping characteristic of this device can regulate automatically according to crankshaft torsional vibrations amplitude size, is changed the change of magnetic induction and electric current, change the damping force of electrorheological fluid, enable the effectiveness in vibration suppression that bent axle reaches good at each speed by vibration amplitude.
Description
Technical field
Engine vibration-damping technology of the present invention, is specifically related to a kind of with the ER effect Torsinoal absorber of self-adaptive electromagnetic induction mode.
Background technique
As everyone knows, motor inevitably can produce torsional vibration in work runs, and this vibration makes machinery equipment efficiency reduce, and even causes the fatigue ruption of bent axle or transmission shaft, and especially in the motor of high speed, high pressure, situation is even more serious.Though the shafting torsional oscillation earthquake intensity sometimes caused because of Long-term Vibration does not reach the degree of crankshaft breakdown, the torsional deflection of bent axle will cause main axle bush to peel off scaling loss, and timing gear or other driven accessary destroy.In addition, the torsional deflection of bent axle also can make engine noise increase.Therefore, cutting down torsional vibration is problem anxious to be resolved during engine design manufactures.
Traditional silicone oil torsional vibration damper, mainly according to bent axle natural frequency, the amplitude cut down when bent axle resonates is designed, the damping characteristic of its vibration damper is nonadjustable, and when running under other frequencies beyond resonant frequency of motor, the vibration damper of fixing damping characteristic does not then reach best effectiveness in vibration suppression.Therefore, in order to bent axle can be made under other frequencies also to reach better effectiveness in vibration suppression, this technology has become the break-through point that damping technology improves.Heat is shed by the silicone oil outside inertia disk by the energy that crankshaft torsional vibrations produce simultaneously, and its vibrational energy also can not get effective recovery and utilization.If on the basis reaching effectiveness in vibration suppression, again this energy can be reclaimed, then will become required by the industry simultaneously.
Summary of the invention
The object of the invention is, a kind of ER effect Torsinoal absorber reclaimed engine crankshaft vibrational energy with self-adaptive electromagnetic induction mode is provided.
The technological scheme taked for realizing object of the present invention is: housing is equipped with antifriction bush, and antifriction bush is provided with installation gap, breach embeds magnet inner core disk, is marked with Damping fluid in the circumferential weld gap between housing and magnet inner core disk.The surface of housing is tied with the magnetic induction coil of UNICOM, to contact frictional position surface and housing lower end, be provided with some conducting plates at antifriction bush with magnet inner core disk bottom.Be connected to controller by wire after each conducting plate serial connection, the current output terminal of magnetic induction coil is attached to A/D converter.Electric current is supplied controller by A/D converter after interchange becomes direct current.
Self-adaptive electromagnetic induction type current becomes torshional vibration damper, oscillating body electromagnetic induction is utilized to produce the characteristic of alternating current, in inner core disk inside, magnet is set, outside inner core disk, (housing) arranges inductor coil, and magnet and inductor coil produce relative displacement will produce induction electromotive force in inductor coil.This electromotive force is drawn and after the conversion of alternating direct-current, controls by induction current the damping characteristic that electrorheological fluid changes its inner core disk.Because the rheological properties of electrorheological fluid by the control of extra electric field, thus by realizing regulating induction current to control the damping constant of electrorheological fluid, thus can control torsional oscillation and the Oscillation Amplitude of bent axle.Relative to common silicon oil damper, bent axle can be made under other frequencies except resonant frequency also to realize good effectiveness in vibration suppression, and meanwhile, crankshaft vibration Shaoxing opera is strong, and vibration damping characteristic is stronger, and shaft vibration suppression effect is also stronger.
Feature of the present invention and beneficial effect are that, for traditional silicone oil torshional vibration damper, its damping characteristic is nonadjustable, and its damping constant is just as the optimal damping constant of abatement resonance amplitude.And its damping characteristic of apparatus of the present invention regulates automatically according to crankshaft torsional vibrations amplitude size, change magnetic induction size by vibration amplitude, magnetic induction size determines the size of electric current, and the size of electric current determines again the size of electrorheological fluid damping force.Thus enable the effectiveness in vibration suppression that bent axle reaches good at each speed.
Accompanying drawing explanation
Shown accompanying drawing is Principles and methods schematic diagram of the present invention.What accompanying drawing showed is vibration damper semi-circular structure, and in figure, namely the chain line of bottom is the center line of this vibration damper.
Embodiment
Principles and methods of the present invention to be further described by embodiment below in conjunction with accompanying drawing.
Self-adaptive electromagnetic induction type current becomes torshional vibration damper and comprises: housing, antifriction bush, magnetic induction coil, Damping fluid, magnet inner core disk, conducting plate and A/D converter etc., its structure is: housing 1 is equipped with antifriction bush 2, antifriction bush is provided with installation gap, breach embeds magnet inner core disk 5, be marked with Damping fluid 4 in circumferential weld gap between housing and magnet inner core disk, the surface of housing is tied with the magnetic induction coil of UNICOM.To contact with magnet inner core disk bottom frictional position surface and inner housing lower end at antifriction bush, be provided with some conducting plates 6.Be connected to controller 7 by wire after each conducting plate serial connection, the current output terminal of magnetic induction coil is attached to A/D converter 8.Electric current is supplied controller to provide control electric current by A/D converter after interchange becomes direct current.Antifriction bush and magnet inner core disk are annular.Conducting plate adopts copper sheet to weld; Damping fluid adopts electrorheological fluid.A/D converter is the device realizing alterating and direct current conversion.
This vibration damper is made up of magnet inner core disk two primary elements of the toroidal shell closed and annular, and magnet inner core disk freely can rotate round the lining of smooth abrasion-proof in housing.During use, by vibration damper frame and crankshaft end close-coupled, it is allowed to produce torsional vibration with bent axle.In the process of vibration, because magnet inner core disk has inertia, its a motion just beat more delayed than the periodicity of housing motion all the time, therefore just also exists relative movement between disk and housing.At interior shell surface, be wound with magnetic induction coil, when disk moves, magnetic force line cutting magnetic induction coil, makes coil produce alternating current.Change DC electrical source into by A/D rectification circuit, conduct back the electrode set by magnetic disk surface by brush, negative pole is located at vibration damper shell.
Vibration damper disk and shell relative movement Shaoxing opera strong, the alternating current produced is also larger, thus acting on internal current, to become the electric current of liquid also larger, and the damping function that electrorheological fluid plays also just strains greatly mutually, thus serves effective inhibitory action.This inhibitory action is worked by the vibration of vibration damper itself and magnetic induction, extraneous need not adjust, just can carry out Automatic adjusument, reach vibration damping object.
Claims (2)
1. self-adaptive electromagnetic induction type current becomes torshional vibration damper, comprise: housing, antifriction bush, magnetic induction coil, Damping fluid, magnet inner core disk, conducting plate, A/D converter, it is characterized in that: housing (1) is equipped with antifriction bush (2), antifriction bush is provided with installation gap, breach embeds magnet inner core disk (5), ER effect Damping fluid (4) is marked with in circumferential weld gap between housing and magnet inner core disk, the surface of housing is tied with the magnetic induction coil (3) of UNICOM, to contact with magnet inner core disk bottom frictional position surface and housing lower end at antifriction bush, be provided with some conducting plates (6), controller (7) is connected to by wire after each conducting plate serial connection, the current output terminal of magnetic induction coil is attached to A/D converter (8), A/D converter supplies controller after Ac is converted to direct current.
2. become torshional vibration damper according to self-adaptive electromagnetic induction type current according to claim 1, it is characterized in that: described conducting plate is copper sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013001.XA CN103711834B (en) | 2014-01-13 | 2014-01-13 | Self-adaptive electromagnetic induction type current becomes torshional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013001.XA CN103711834B (en) | 2014-01-13 | 2014-01-13 | Self-adaptive electromagnetic induction type current becomes torshional vibration damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711834A CN103711834A (en) | 2014-04-09 |
| CN103711834B true CN103711834B (en) | 2015-10-21 |
Family
ID=50405071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410013001.XA Active CN103711834B (en) | 2014-01-13 | 2014-01-13 | Self-adaptive electromagnetic induction type current becomes torshional vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103711834B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915015B (en) * | 2016-05-31 | 2018-08-07 | 武汉理工大学 | A kind of marine drive shafting vibration damping energy recycle device |
| CN106969086B (en) * | 2017-03-27 | 2018-12-04 | 宁波大学 | A kind of magnetorheological torsional vibration damper for engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718472B2 (en) * | 1988-04-13 | 1995-03-06 | 日産自動車株式会社 | Variable inertial mass flywheel |
| US5829319A (en) * | 1996-10-04 | 1998-11-03 | Vibratech, Inc. | Magneto-rheological torsional vibration damper |
| EP1862697A1 (en) * | 2006-05-30 | 2007-12-05 | The Technical University of Denmark (DTU) | Torsional vibration damper |
| CN102168736B (en) * | 2011-05-05 | 2012-07-11 | 天津大学 | Magnetorheological torsional vibration damper for engine |
| US8733307B2 (en) * | 2011-09-28 | 2014-05-27 | Denso Corporation | Hydraulic braking device and valve timing adjusting apparatus |
-
2014
- 2014-01-13 CN CN201410013001.XA patent/CN103711834B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103711834A (en) | 2014-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102168736B (en) | Magnetorheological torsional vibration damper for engine | |
| US10215147B2 (en) | Power transmission apparatus with rotating electrical machine | |
| CN104500640B (en) | A kind of self adaptation straight line magnetic fluid damper | |
| CN206294011U (en) | A kind of motor base for extending motor service life | |
| CN103711834B (en) | Self-adaptive electromagnetic induction type current becomes torshional vibration damper | |
| CN205791986U (en) | A kind of motor with damping effect | |
| CN103727175A (en) | Rubber torsional vibration damper recycling vibration energy in electromagnetic mode | |
| CN108167386A (en) | A kind of control method of vibration damper and vibration damper | |
| CN103291828A (en) | Serially-connected electromagnetic semi-active vibration absorber with asymmetrical tooth pitches | |
| CN201714899U (en) | Adaptive dual control magnetorheological damper | |
| CN203297513U (en) | Electromagnetic vibration damper | |
| CN203352102U (en) | Electromagnetic anti-vibration hammer | |
| CN103697105A (en) | Current variable torsional vibration damper | |
| CN103758912B (en) | A kind of electrorheological fluid torsional vibration damper | |
| CN202177258U (en) | Air-conditioner damping device | |
| CN103711838A (en) | Torsional vibration damper recycling vibration energy in electromagnetic mode | |
| CN101832356B (en) | Self-adaptive double control magneto-rheological damper | |
| CN203836048U (en) | Electromagnetic damper | |
| CN203297512U (en) | Electromagnetic vibration damper | |
| CN115663735A (en) | Damping amplification type composite energy consumption damper | |
| CN205160331U (en) | Novel inertia actuator | |
| CN103715942A (en) | Vibration damping device for recycling bend torsion composite energy in piezoelectric mode | |
| CN205283321U (en) | Drying -machine is packing ring for motor | |
| CN103762908B (en) | A kind of method realizing resonance in energy collector | |
| CN202856520U (en) | Motor with damping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |