CN106969086A - A kind of magnetorheological torsional vibration damper for engine - Google Patents
A kind of magnetorheological torsional vibration damper for engine Download PDFInfo
- Publication number
- CN106969086A CN106969086A CN201710186570.8A CN201710186570A CN106969086A CN 106969086 A CN106969086 A CN 106969086A CN 201710186570 A CN201710186570 A CN 201710186570A CN 106969086 A CN106969086 A CN 106969086A
- Authority
- CN
- China
- Prior art keywords
- annular
- ring
- conducting ring
- input
- secondary coil
- 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
Classifications
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
-
- 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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
- F16F15/035—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means by use of eddy or induced-current damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of magnetorheological torsional vibration damper for engine, including magnetorheological torsional vibration damper agent structure and including voltage adaptive controlling module, voltage adaptive controlling module includes first annular housing, control transformer, voltage comparator, first collector ring, second collector ring, AC DC converters and adaptive brush assembly of electric, voltage comparator has first input end, second input, 3rd input, 4th input and output end, first collector ring and the second collector ring are separately positioned on the lateral wall of first annular housing, the first annular cavity of left end opening is provided with first annular housing, the first cover plate for being open and being covered is provided with the opening of first annular cavity；Advantage be can automatic adjusument damping force, be of relatively low cost, frequently big load rigid shock will not be produced to inertia annulus, power supply is stable, and energy loss is smaller.
Description
Technical field
The present invention relates to a kind of shock absorber, more particularly, to a kind of magnetorheological torsional vibration damper for engine.
Background technology
Bent axle, as the elasticity of torsion system of engine, is typically to be in turn connected to form by several crank throws.In engine
In the operating of the high speed of (such as diesel engine), inevitably there is certain natural frequency of vibration in bent axle, and bent axle can bear gas pressure
The disturbance torque that power is produced, and the size and Orientation of disturbance torque is periodically variable, causes crank throw instantaneous angular velocity
Change.Because crankshaft rear end is equipped with flywheel, flywheel inertia is very big, therefore flywheel instantaneous angular velocity is regarded as uniform, now bent
Turn and relative torsionoscillation, i.e. torsional oscillation are just produced to flywheel.When disturbance torque is equal with the natural frequency of vibration of bent axle, bent axle is just produced
Raw resonance, makes engine power incur loss, and the gear wear driven by bent axle aggravates, or even bent axle is fractureed because of resonance.
At present, mainly by bent axle mounting dampers absorb the energy of its torsional oscillation, it is to avoid produce resonance.Publication No.
A kind of magnetorheological torsional vibration damper for engine is disclosed for CN102168736A Chinese invention patent, the shock absorber includes annular
Side wall on housing, inertia annulus, annular antifriction bush and ring shaped conductive coil, toroidal shell is provided with the annular being coaxial therewith
Chamber, inertia annulus, annular antifriction bush and loop coil are co-axially located in annular compartment, annular antifriction bush and annular chamber
The outer wall of room is fixedly connected, and inertia annulus is located in annular antifriction bush, and inertia annulus axle is to fixation, but inertia annulus can be relative
Rotated in annular antifriction bush along central shaft, ring shaped conductive coil is arranged in inertia annulus, the power taking of ring shaped conductive coil
End is contacted with antifriction bush all the time, and annular compartment is with being full of magnetic flow liquid in the gap of inertia annulus.Annular antifriction bush is connected to
Wire, the wire is drawn outside toroidal shell by insulated conduit.In vibration damping, bent axle pass through toroidal shell endoporus, power supply with
Wire is connected as ring shaped conductive coil and provides generation magnetic field after operating voltage, ring shaped conductive coil electricity and control magnetic current and liquid flow
Dynamic characteristic, realizes the adjustment to bent axle damping due to rotation power.
But, there is problems with above-mentioned magnetorheological torsional vibration damper for engine：First, the shock absorber is only executing agency,
Itself can not control changes of magnetic field according to the real-time speed conditions of engine, it is necessary to be equipped with detecting and controlling system detection engine real
When rotating speed, and control power supply to generate corresponding voltage signal to realize that magnetic field changes, thus system bulky complex causes vibration damping system
Cost of uniting is higher；2nd, ring shaped conductive coil uses contact way to take power with annular antifriction bush, and inertia annulus opposed annular subtracts
Mill lining set can be rotated, so (most of region has gap to the fit system necessarily coordinated between the two using gap, and part is again
Contact electricity getting), and bent axle has the circular runout of periodically big intensity in high-speed cruising, and inertia annulus can be produced frequently
Big load rigid shock, on the one hand can cause the wear-out failure of inertia annulus, reduce service life, another aspect inertia annulus with
The gap of annular antifriction bush coordinates under actual working environment, because contact area real-time change can cause power supply instability
Problem；3rd, the gap of inertia annulus and annular antifriction bush coordinates, and in actual motion inertia annulus can serve as a contrast with annular anti-attrition
Cover surface and cover one layer of damping liquid film, because damping fluid is iknsulating liquid, input current can be produced largely by damping during liquid film
Heat, hinders electric current to pass through, increase energy loss.
The content of the invention
The technical problems to be solved by the invention be to provide one kind can automatic adjusument damping force, be of relatively low cost, no
Frequently big load rigid shock can be produced to inertia annulus, power supply is stable, and the magnetorheological torsion of the less engine of energy loss
Shake shock absorber.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of magnetorheological torsional vibration damper for engine,
Including magnetorheological torsional vibration damper agent structure, described magnetorheological torsional vibration damper for engine also includes voltage adaptive controlling mould
Block, described voltage adaptive controlling module includes first annular housing, control transformer, voltage comparator, the first collector ring, second
Collector ring, AC-DC converter and adaptive brush assembly of electric, described voltage comparator have first input end, the second input,
3rd input, the 4th input and output end, the first described collector ring and the second described collector ring are separately positioned on institute
On the lateral wall for the first annular housing stated, the first annular cavity of left end opening is provided with described first annular housing,
The first cover plate for being open and being covered is provided with the opening of described first annular cavity；Described control transformer is arranged on
In described first annular cavity, described control transformer has a primary coil and secondary coil, described primary coil and
Described secondary coil is ring-type, and described primary coil has first input end and the second input, described secondary wire
Circle has the first output end and the second output end, and the first input end of described primary coil and the first described collector ring connect
Connect, the second input of described primary coil and described the second collector ring connection, the right side of described secondary coil is by interior
The first conducting ring, the second conducting ring, the 3rd conducting ring and the 4th conducting ring are disposed with to outer, described the first conducting ring,
Described the second conducting ring, the 3rd described conducting ring and the 4th described conducting ring is not in contact with each other, described the first conducting ring,
The right side of described the second conducting ring, the 3rd described conducting ring and the 4th described conducting ring is in the same plane, institute
The first conducting ring stated is connected by the first conductor wire and described secondary coil, and the second described conducting ring is conductive by second
Line and described secondary coil connection, the 3rd described conducting ring are connected by the 3rd conductor wire and described secondary coil, institute
The 4th conducting ring stated is connected by the first output end of the 4th conductor wire and described secondary coil, described secondary coil position
Coil turn between the second output end of the first described conductor wire and described secondary coil is its total number of coils
A quarter, described secondary coil is located between the second output end of the second described conductor wire and described secondary coil
Coil turn is 2/4ths of its total number of coils, and described secondary coil is located at the 3rd described conductor wire and described time
Coil turn between second output end of level coil is 3/4ths of its total number of coils.Described adaptive brush assembly of electric
Comprising retainer and three adaptive units, described retainer is arranged in described first annular cavity, described holding
Three installing ports are provided with frame, the installing port described in three is radially extended along described first annular cavity, per adjacent two
Angle between individual installing port is 120 degree, and the adaptive unit described in three, which is corresponded, is arranged on three described installing ports
Interior, described adaptive unit includes spring and brush, one end and the outside of described first annular cavity of described spring
Wall is fixedly connected, and the other end of described spring is fixedly connected with described brush, and described brush stress can be in described peace
Intraoral moving radially along described first annular cavity is filled, original state, described brush connects with the first described conducting ring
Touch, described spring is in nature stretched condition, when described brush stress movement, described spring is compressed, described
Brush is contacted with the second described conducting ring, the 3rd described conducting ring and the 4th described conducting ring successively；Described in three
The first input end, the second input and the 3rd input of the spring of adaptive unit and described voltage comparator are corresponded
Connection, described the 4th input of voltage comparator and the second output end of described secondary coil is connected, described voltage
The input connection of the output end of comparator and described AC-DC converter, the output end of described AC-DC converter with it is described
Magnetorheological torsional vibration damper agent structure be connected as its provide operating voltage.
Described magnetorheological torsional vibration damper agent structure includes the second toroidal shell, inertia annulus, the first magnet exciting coil
With the second magnet exciting coil, the right-hand member connection of the left end of described the second toroidal shell and described first annular housing is described
Be provided with the second annular cavity of right-end openings on second toroidal shell, be provided with the opening of described the second loop wire cavity by
First annular installation cavity is provided with its second cover plate for covering of being open, the madial wall of described the second annular cavity, it is described
First magnet exciting coil is arranged in described first annular installation cavity, and the is provided with the lateral wall of described the second annular cavity
Second ring installation cavity, the second described magnet exciting coil is arranged in the annular installation cavity of described second, and described inertia annulus is set
Put in the second described annular cavity, first annular groove, described are provided with the left side of described inertia annulus
It is provided with the first rubber washer in one annular groove, the bottom of described the first rubber washer and the second described annular cavity connects
Touch, be provided with the right side of described inertia annulus in the second annular groove, the second described annular groove and be provided with second
Rubber washer, the second described rubber washer and described the second cover plate contact, described inertia annulus and the second described ring
Be filled with magnetic flow liquid between shape cavity, the output end of described AC-DC converter respectively with the first described magnet exciting coil and
Described the second magnet exciting coil connection.
It is attached with the first wear ring on the lateral wall of the second described annular cavity, the inner side of described the second annular cavity
It is attached with the second wear ring on wall, the inwall of described inertia annulus and described the second wear ring contact, described inertial circle
The outer wall of ring and described the first wear ring contact.In the structure, by the setting of the first wear ring and the second wear ring, reduce
The inertia rings that shock absorber is naturally drooped when starting and the friction of the second toroidal shell, prevent the metallics in inertia rings long-term
Abrasion comes off in work, pollutes magnetic flow liquid.
Compared with prior art, the advantage of the invention is that by setting voltage adaptive controlling module, before the engine is started up,
First collector ring and the second collector ring access external communication electricity, make voltage adaptive controlling module be powered, in low speed after engine starting
During rotation, the centrifugal force that brush is produced under the induced effect of bent axle is not enough to overcome the elastic force of spring, and now brush is rested on
Initial position is contacted with the first conducting ring, now, controls the coiling of a quarter number of turn in the secondary coil of transformer to be in work
Make state, output voltage is minimum, the elastic force of spring is overcome as speed of crankshaft increases centrifugal force and gradually increased to, now, spring
Compressed, brush is moved to spring direction, is connect in spring moving process according to real-time rotating speed, brush or with the second conducting ring
Touch, or contact or contacted with the 4th conducting ring with the 3rd conducting ring, the secondary coil of control transformer is in effective work
Number of turns increase, output voltage becomes big, thus voltage adaptive controlling module can with actual engine speed increase, increase defeated
Go out voltage, three road voltages of voltage adaptive controlling module output are after over-voltage comparator, output wherein two-way or two-way above phase
Same voltage is to AC-DC conversion module, to reduce deviation of the voltage adaptive controlling module with crankshaft vibration, it is ensured that voltage stabilization, electricity
Press comparator output voltage and stable work electricity is provided after AC-DC conversion module for magnetorheological torsional vibration damper agent structure
Pressure, makes magnetorheological torsional vibration damper agent structure produce the strong and weak magnetic field of correspondence size input voltage, changes damping force, thus originally
Invention can automatic adjusument damping force, be of relatively low cost cost it is relatively low, will not to inertia annulus produce frequently big load it is firm
Property impact, power supply is stable, and energy loss is smaller.
Brief description of the drawings
Fig. 1 is the sectional view of the magnetorheological torsional vibration damper for engine of the present invention；
Fig. 2 is the structure chart of the adaptive brush assembly of electric of the magnetorheological torsional vibration damper for engine of the present invention；
When Fig. 3 slowly runs for bent axle, the adaptive brush assembly of electric of magnetorheological torsional vibration damper for engine of the invention
State diagram；
When Fig. 4 is that crankshaft high-speed is rotated, the adaptive brush assembly of electric of magnetorheological torsional vibration damper for engine of the invention
State diagram.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one：As illustrated, a kind of magnetorheological torsional vibration damper for engine, including magnetorheological torsional vibration damper main body
Structure, magnetorheological torsional vibration damper for engine also includes voltage adaptive controlling module, and voltage adaptive controlling module includes first annular shell
Body 1, control transformer 2, voltage comparator 3, the first collector ring 4, the second collector ring 5, AC-DC converter 6 and adaptive brush
Component, voltage comparator 3 has first input end, the second input, the 3rd input, the 4th input and output end, first
The collector ring 5 of collector ring 4 and second is separately positioned on the lateral wall of first annular housing 1, and a left side is provided with first annular housing 1
The first cover plate 8 for being open and being covered is provided with the first annular cavity 7 of end opening, the opening of first annular cavity 7；Control
Transformer 2 is arranged in first annular cavity 7, and control transformer 2 has primary coil 21 and secondary coil 22, primary coil 21
It is ring-type with secondary coil 22, primary coil 21 has first input end and the second input, and secondary coil 22 has first
Output end and the second output end, the first input end of primary coil 21 and the first collector ring 4 are connected, and the second of primary coil 21 is defeated
Enter end and the second collector ring 5 is connected, the right side of secondary coil 22 is disposed with first the 9, second conduction of conducting ring from inside to outside
Ring 10, the 3rd conducting ring 11 and the 4th conducting ring 12, the first conducting ring 9, the second conducting ring 10, the 3rd conducting ring 11 and the 4th are led
Electric ring 12 is not in contact with each other, the first conducting ring 9, the second conducting ring 10, the right side position of the 3rd conducting ring 11 and the 4th conducting ring 12
In on same plane, the first conducting ring 9 is connected by the first conductor wire 13 and secondary coil 22, and the second conducting ring 10 passes through second
Conductor wire 14 and secondary coil 22 are connected, and the 3rd conducting ring 11 is connected by the 3rd conductor wire 15 and secondary coil 22, and the 4th leads
Electric ring 12 is connected by the first output end of the 4th conductor wire 16 and secondary coil 22, and secondary coil 22 is located at the first conductor wire 13
Coil turn between the second output end of secondary coil 22 is a quarter of its total number of coils, and secondary coil 22 is located at
Coil turn between second conductor wire 14 and the second output end of secondary coil 22 is 2/4ths of its total number of coils, secondary
The coil turn that level coil 22 is located between the 3rd conductor wire 15 and the second output end of secondary coil 22 is its total number of coils
3/4ths.Adaptive brush assembly of electric includes retainer 17 and three adaptive units, and retainer 17 is arranged on first annular
In cavity 7, three installing ports 18 are provided with retainer 17, three radially extending along first annular cavity 7 of installing port 18, often
Angle between two neighboring installing port 18 is 120 degree, and three adaptive units, which are corresponded, to be arranged in three installing ports 18,
Adaptive unit includes spring 19 and brush 20, and one end of spring 19 is fixedly connected with the lateral wall of first annular cavity 7, spring
19 other end is fixedly connected with brush 20, the stress of brush 20 can in the installing port 18 moving radially along first annular cavity 7,
Original state, brush 20 is contacted with the first conducting ring 9, and spring 19 is in nature stretched condition, when the stress of brush 20 is moved, bullet
Spring 19 is compressed, and brush 20 is contacted with the second conducting ring 10, the 3rd conducting ring 11 and the 4th conducting ring 12 successively；Three adaptive
The spring 19 of unit connects one to one with the first input end of voltage comparator 3, the second input and the 3rd input, voltage
The second output end connection of the 4th input and secondary coil 22 of comparator 3, the output end and AC-DC of voltage comparator 3 turn
The input connection of parallel operation 6, output end and the magnetorheological torsional vibration damper agent structure of AC-DC converter 6 are connected as its offer
Operating voltage.
Embodiment two：As illustrated, a kind of magnetorheological torsional vibration damper for engine, including magnetorheological torsional vibration damper main body
Structure, magnetorheological torsional vibration damper for engine also includes voltage adaptive controlling module, and voltage adaptive controlling module includes first annular shell
Body 1, control transformer 2, voltage comparator 3, the first collector ring 4, the second collector ring 5, AC-DC converter 6 and adaptive brush
Component, voltage comparator 3 has first input end, the second input, the 3rd input, the 4th input and output end, first
The collector ring 5 of collector ring 4 and second is separately positioned on the lateral wall of first annular housing 1, and a left side is provided with first annular housing 1
The first cover plate 8 for being open and being covered is provided with the first annular cavity 7 of end opening, the opening of first annular cavity 7；Control
Transformer 2 is arranged in first annular cavity 7, and control transformer 2 has primary coil 21 and secondary coil 22, primary coil 21
It is ring-type with secondary coil 22, primary coil 21 has first input end and the second input, and secondary coil 22 has first
Output end and the second output end, the first input end of primary coil 21 and the first collector ring 4 are connected, and the second of primary coil 21 is defeated
Enter end and the second collector ring 5 is connected, the right side of secondary coil 22 is disposed with first the 9, second conduction of conducting ring from inside to outside
Ring 10, the 3rd conducting ring 11 and the 4th conducting ring 12, the first conducting ring 9, the second conducting ring 10, the 3rd conducting ring 11 and the 4th are led
Electric ring 12 is not in contact with each other, the first conducting ring 9, the second conducting ring 10, the right side position of the 3rd conducting ring 11 and the 4th conducting ring 12
In on same plane, the first conducting ring 9 is connected by the first conductor wire 13 and secondary coil 22, and the second conducting ring 10 passes through second
Conductor wire 14 and secondary coil 22 are connected, and the 3rd conducting ring 11 is connected by the 3rd conductor wire 15 and secondary coil 22, and the 4th leads
Electric ring 12 is connected by the first output end of the 4th conductor wire 16 and secondary coil 22, and secondary coil 22 is located at the first conductor wire 13
Coil turn between the second output end of secondary coil 22 is a quarter of its total number of coils, and secondary coil 22 is located at
Coil turn between second conductor wire 14 and the second output end of secondary coil 22 is 2/4ths of its total number of coils, secondary
The coil turn that level coil 22 is located between the 3rd conductor wire 15 and the second output end of secondary coil 22 is its total number of coils
3/4ths.Adaptive brush assembly of electric includes retainer 17 and three adaptive units, and retainer 17 is arranged on first annular
In cavity 7, three installing ports 18 are provided with retainer 17, three radially extending along first annular cavity 7 of installing port 18, often
Angle between two neighboring installing port 18 is 120 degree, and three adaptive units, which are corresponded, to be arranged in three installing ports 18,
Adaptive unit includes spring 19 and brush 20, and one end of spring 19 is fixedly connected with the lateral wall of first annular cavity 7, spring
19 other end is fixedly connected with brush 20, the stress of brush 20 can in the installing port 18 moving radially along first annular cavity 7,
Original state, brush 20 is contacted with the first conducting ring 9, and spring 19 is in nature stretched condition, when the stress of brush 20 is moved, bullet
Spring 19 is compressed, and brush 20 is contacted with the second conducting ring 10, the 3rd conducting ring 11 and the 4th conducting ring 12 successively；Three adaptive
The spring 19 of unit connects one to one with the first input end of voltage comparator 3, the second input and the 3rd input, voltage
The second output end connection of the 4th input and secondary coil 22 of comparator 3, the output end and AC-DC of voltage comparator 3 turn
The input connection of parallel operation 6, output end and the magnetorheological torsional vibration damper agent structure of AC-DC converter 6 are connected as its offer
Operating voltage.
In the present embodiment, magnetorheological torsional vibration damper agent structure includes the second toroidal shell 23, inertia annulus 24, first
The magnet exciting coil 26 of magnet exciting coil 25 and second, the right-hand member connection of the left end and first annular housing 1 of the second toroidal shell 23, second
It is provided with the second annular cavity of right-end openings, the opening of the second loop wire cavity and is provided with its vent cover on toroidal shell 23
First annular installation cavity is provided with the second cover plate 27 firmly, the madial wall of the second annular cavity, the first magnet exciting coil 25 is installed
In first annular installation cavity, the second annular installation cavity, the second magnet exciting coil 26 are provided with the lateral wall of the second annular cavity
In the second annular installation cavity, inertia annulus 24 is arranged in the second annular cavity, is set on the left side of inertia annulus 24
It is equipped with first annular groove, first annular groove and is provided with the first rubber washer 28, the first rubber washer 28 and the second annular
The bottom connection of cavity, is provided with the second annular groove, the second annular groove on the right side of inertia annulus 24 and is provided with the
Two rubber washers 29, the second rubber washer 29 and the second cover plate 27 are connected, and are filled between the annular cavity of inertia annulus 24 and second
There is magnetic flow liquid, the output end of AC-DC converter 6 is connected with the first magnet exciting coil 25 and the second magnet exciting coil 26 respectively.
Embodiment three：As illustrated, a kind of magnetorheological torsional vibration damper for engine, including magnetorheological torsional vibration damper main body
Structure, magnetorheological torsional vibration damper for engine also includes voltage adaptive controlling module, and voltage adaptive controlling module includes first annular shell
Body 1, control transformer 2, voltage comparator 3, the first collector ring 4, the second collector ring 5, AC-DC converter 6 and adaptive brush
Component, voltage comparator 3 has first input end, the second input, the 3rd input, the 4th input and output end, first
The collector ring 5 of collector ring 4 and second is separately positioned on the lateral wall of first annular housing 1, and a left side is provided with first annular housing 1
The first cover plate 8 for being open and being covered is provided with the first annular cavity 7 of end opening, the opening of first annular cavity 7；Control
Transformer 2 is arranged in first annular cavity 7, and control transformer 2 has primary coil 21 and secondary coil 22, primary coil 21
It is ring-type with secondary coil 22, primary coil 21 has first input end and the second input, and secondary coil 22 has first
Output end and the second output end, the first input end of primary coil 21 and the first collector ring 4 are connected, and the second of primary coil 21 is defeated
Enter end and the second collector ring 5 is connected, the right side of secondary coil 22 is disposed with first the 9, second conduction of conducting ring from inside to outside
Ring 10, the 3rd conducting ring 11 and the 4th conducting ring 12, the first conducting ring 9, the second conducting ring 10, the 3rd conducting ring 11 and the 4th are led
Electric ring 12 is not in contact with each other, the first conducting ring 9, the second conducting ring 10, the right side position of the 3rd conducting ring 11 and the 4th conducting ring 12
In on same plane, the first conducting ring 9 is connected by the first conductor wire 13 and secondary coil 22, and the second conducting ring 10 passes through second
Conductor wire 14 and secondary coil 22 are connected, and the 3rd conducting ring 11 is connected by the 3rd conductor wire 15 and secondary coil 22, and the 4th leads
Electric ring 12 is connected by the first output end of the 4th conductor wire 16 and secondary coil 22, and secondary coil 22 is located at the first conductor wire 13
Coil turn between the second output end of secondary coil 22 is a quarter of its total number of coils, and secondary coil 22 is located at
Coil turn between second conductor wire 14 and the second output end of secondary coil 22 is 2/4ths of its total number of coils, secondary
The coil turn that level coil 22 is located between the 3rd conductor wire 15 and the second output end of secondary coil 22 is its total number of coils
3/4ths；Adaptive brush assembly of electric includes retainer 17 and three adaptive units, and retainer 17 is arranged on first annular
In cavity 7, three installing ports 18 are provided with retainer 17, three radially extending along first annular cavity 7 of installing port 18, often
Angle between two neighboring installing port 18 is 120 degree, and three adaptive units, which are corresponded, to be arranged in three installing ports 18,
Adaptive unit includes spring 19 and brush 20, and one end of spring 19 is fixedly connected with the lateral wall of first annular cavity 7, spring
19 other end is fixedly connected with brush 20, the stress of brush 20 can in the installing port 18 moving radially along first annular cavity 7,
Original state, brush 20 is contacted with the first conducting ring 9, and spring 19 is in nature stretched condition, when the stress of brush 20 is moved, bullet
Spring 19 is compressed, and brush 20 is contacted with the second conducting ring 10, the 3rd conducting ring 11 and the 4th conducting ring 12 successively；Three adaptive
The spring 19 of unit connects one to one with the first input end of voltage comparator 3, the second input and the 3rd input, voltage
The second output end connection of the 4th input and secondary coil 22 of comparator 3, the output end and AC-DC of voltage comparator 3 turn
The input connection of parallel operation 6, output end and the magnetorheological torsional vibration damper agent structure of AC-DC converter 6 are connected as its offer
Operating voltage.
In the present embodiment, magnetorheological torsional vibration damper agent structure includes the second toroidal shell 23, inertia annulus 24, first
The magnet exciting coil 26 of magnet exciting coil 25 and second, the right-hand member connection of the left end and first annular housing 1 of the second toroidal shell 23, second
It is provided with the second annular cavity of right-end openings, the opening of the second loop wire cavity and is provided with its vent cover on toroidal shell 23
First annular installation cavity is provided with the second cover plate 27 firmly, the madial wall of the second annular cavity, the first magnet exciting coil 25 is installed
In first annular installation cavity, the second annular installation cavity, the second magnet exciting coil 26 are provided with the lateral wall of the second annular cavity
In the second annular installation cavity, inertia annulus 24 is arranged in the second annular cavity, is set on the left side of inertia annulus 24
It is equipped with first annular groove, first annular groove and is provided with the first rubber washer 28, the first rubber washer 28 and the second annular
The bottom contact of cavity, is provided with the second annular groove, the second annular groove on the right side of inertia annulus 24 and is provided with the
Two rubber washers 29, the second rubber washer 29 and the second cover plate 27 are contacted, and are filled between the annular cavity of inertia annulus 24 and second
There is magnetic flow liquid, the output end of AC-DC converter 6 is connected with the first magnet exciting coil 25 and the second magnet exciting coil 26 respectively.
In the present embodiment, be attached with the first wear ring 30 on the lateral wall of the second annular cavity, the second annular cavity it is interior
The second wear ring 31 is attached with the wall of side, the inwall of inertia annulus 24 and the second wear ring 31 are contacted, the outer wall of inertia annulus 24
Contacted with the first wear ring 30.
Claims (3)
1. a kind of magnetorheological torsional vibration damper for engine, including magnetorheological torsional vibration damper agent structure, it is characterised in that described
Magnetorheological torsional vibration damper for engine also include voltage adaptive controlling module, described voltage adaptive controlling module includes first annular
Housing, control transformer, voltage comparator, the first collector ring, the second collector ring, AC-DC converter and adaptive brush assembly of electric,
Described voltage comparator has first input end, the second input, the 3rd input, the 4th input and output end, described
The first collector ring and the second described collector ring be separately positioned on the lateral wall of described first annular housing, described the
It is provided with the first annular cavity of left end opening on one toroidal shell, is provided with the opening of described first annular cavity by it
Be open the first cover plate covered；
Described control transformer is arranged in described first annular cavity, described control transformer have primary coil and
Secondary coil, described primary coil and described secondary coil are ring-type, and described primary coil has first input end
With the second input, described secondary coil has the first output end and the second output end, and the first of described primary coil is defeated
Enter end and described the first collector ring is connected, the second input of described primary coil and described the second collector ring connection,
The right side of described secondary coil is disposed with the first conducting ring, the second conducting ring, the 3rd conducting ring and the 4th from inside to outside
Conducting ring, described the first conducting ring, the second described conducting ring, the 3rd described conducting ring and the 4th described conducting ring are mutual
Do not contact, described the first conducting ring, the second described conducting ring, the 3rd described conducting ring and the 4th described conducting ring
Right side is in the same plane, and the first described conducting ring is connected by the first conductor wire and described secondary coil, described
The second conducting ring connected by the second conductor wire and described secondary coil, the 3rd described conducting ring passes through the 3rd conductor wire
Connected with described secondary coil, the first output that the 4th described conducting ring passes through the 4th conductor wire and described secondary coil
End connection, described secondary coil is located at the line between the second output end of the first described conductor wire and described secondary coil
The a quarter that the number of turn is its total number of coils is enclosed, described secondary coil is located at the second described conductor wire and described secondary
Coil turn between second output end of coil is 2/4ths of its total number of coils, and described secondary coil is located at described
The 3rd conductor wire and described secondary coil the second output end between coil turn for its total number of coils four/
Three.
Described adaptive brush assembly of electric includes retainer and three adaptive units, and described retainer is arranged on described the
In one annular cavity, three installing ports are provided with described retainer, the installing port described in three is along described first annular
Cavity is radially extended, per two neighboring installing port between angle be 120 degree, the adaptive unit described in three is corresponded
In three described installing ports, described adaptive unit includes spring and brush, one end of described spring and institute
The lateral wall for the first annular cavity stated is fixedly connected, and the other end of described spring is fixedly connected with described brush, described
Brush stress can in described installing port moving radially along described first annular cavity, original state, described electricity
Brush is contacted with the first described conducting ring, and described spring is in nature stretched condition, when described brush stress movement, institute
The spring stated is compressed, described brush successively with the second described conducting ring, described the 3rd conducting ring and the described the 4th
Conducting ring is contacted；The first input end of the spring of adaptive unit described in three and described voltage comparator, the second input
End and the 3rd input connect one to one, the 4th input of described voltage comparator and the second of described secondary coil
Output end is connected, the input connection of the output end of described voltage comparator and described AC-DC converter, described AC-
The output end of DC converters is connected as it with described magnetorheological torsional vibration damper agent structure and provides operating voltage.
2. the magnetorheological torsional vibration damper of a kind of engine according to claim 1, it is characterised in that described is magnetorheological
Torsional vibration damper agent structure includes the second toroidal shell, inertia annulus, the first magnet exciting coil and the second magnet exciting coil, described
The right side is provided with the right-hand member connection of the left end of second toroidal shell and described first annular housing, the second described toroidal shell
The second cover plate for being open and being covered is provided with second annular cavity of end opening, the opening of described the second loop wire cavity,
First annular installation cavity is provided with the madial wall of the second described annular cavity, the first described magnet exciting coil is arranged on described
First annular installation cavity in, be provided with the second annular installation cavity on the lateral wall of described the second annular cavity, described the
Two magnet exciting coils are arranged in the annular installation cavity of described second, and described inertia annulus is arranged on the second described annular cavity
It is interior, it is provided with the left side of described inertia annulus in first annular groove, described first annular groove and is provided with first
The bottom contact of rubber washer, described the first rubber washer and the second described annular cavity, the right side of described inertia annulus
It is provided with end face in the second annular groove, the second described annular groove and is provided with the second rubber washer, the second described rubber
Rubber gasket and the contact of described second cover plate, filled with magnetorheological between described inertia annulus and the second described annular cavity
Liquid, the output end of described AC-DC converter is connected with the first described magnet exciting coil and the second described magnet exciting coil respectively.
3. a kind of magnetorheological torsional vibration damper of engine according to claim 2, it is characterised in that the second described ring
It is attached with the first wear ring on the lateral wall of shape cavity, it is wear-resisting to be attached with second on the madial wall of described the second annular cavity
Ring, the inwall of described inertia annulus and described the second wear ring contact, the outer wall of described inertia annulus and described the
One wear ring is contacted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186570.8A CN106969086B (en) | 2017-03-27 | 2017-03-27 | A kind of magnetorheological torsional vibration damper for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186570.8A CN106969086B (en) | 2017-03-27 | 2017-03-27 | A kind of magnetorheological torsional vibration damper for engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106969086A true CN106969086A (en) | 2017-07-21 |
| CN106969086B CN106969086B (en) | 2018-12-04 |
Family
ID=59329663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710186570.8A Active CN106969086B (en) | 2017-03-27 | 2017-03-27 | A kind of magnetorheological torsional vibration damper for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106969086B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623080A (en) * | 2020-05-13 | 2020-09-04 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
| CN114658800A (en) * | 2020-12-23 | 2022-06-24 | 长城汽车股份有限公司 | Vibration absorbing device, transmission system and vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185946Y (en) * | 1993-01-09 | 1994-12-21 | 徐贵成 | A.C. constant voltage generator for small four-wheel tractor |
| CN2307309Y (en) * | 1997-08-08 | 1999-02-10 | 王彬 | Automatic magnetic regulation voltage stabilizer |
| EP1083361A1 (en) * | 1999-09-09 | 2001-03-14 | Carl Schenck Ag | Torsional vibration damper |
| CN102168736A (en) * | 2011-05-05 | 2011-08-31 | 天津大学 | Magnetorheological torsional vibration damper for engine |
| DE102011081961A1 (en) * | 2011-09-01 | 2013-03-07 | Robert Bosch Gmbh | Device i.e. hydraulic torsional vibration damper, for attenuating oscillation of drive train of combustion engine of motor car, has adjustment unit variably adjusting damping ratio according to evaluation of operating mode of engine |
| CN103697105A (en) * | 2014-01-13 | 2014-04-02 | 天津大学 | Current variable torsional vibration damper |
| CN103711834A (en) * | 2014-01-13 | 2014-04-09 | 天津大学 | Self-adaptive electromagnetic induction electrorheological torsional vibration damper |
| CN204312618U (en) * | 2014-12-12 | 2015-05-06 | 吉林大学 | Embedded rotator type magnetic flow liquid double mass flywheel torshional vibration damper |
-
2017
- 2017-03-27 CN CN201710186570.8A patent/CN106969086B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185946Y (en) * | 1993-01-09 | 1994-12-21 | 徐贵成 | A.C. constant voltage generator for small four-wheel tractor |
| CN2307309Y (en) * | 1997-08-08 | 1999-02-10 | 王彬 | Automatic magnetic regulation voltage stabilizer |
| EP1083361A1 (en) * | 1999-09-09 | 2001-03-14 | Carl Schenck Ag | Torsional vibration damper |
| CN102168736A (en) * | 2011-05-05 | 2011-08-31 | 天津大学 | Magnetorheological torsional vibration damper for engine |
| DE102011081961A1 (en) * | 2011-09-01 | 2013-03-07 | Robert Bosch Gmbh | Device i.e. hydraulic torsional vibration damper, for attenuating oscillation of drive train of combustion engine of motor car, has adjustment unit variably adjusting damping ratio according to evaluation of operating mode of engine |
| CN103697105A (en) * | 2014-01-13 | 2014-04-02 | 天津大学 | Current variable torsional vibration damper |
| CN103711834A (en) * | 2014-01-13 | 2014-04-09 | 天津大学 | Self-adaptive electromagnetic induction electrorheological torsional vibration damper |
| CN204312618U (en) * | 2014-12-12 | 2015-05-06 | 吉林大学 | Embedded rotator type magnetic flow liquid double mass flywheel torshional vibration damper |
Non-Patent Citations (2)
| Title |
|---|
| 徐红亮等: "新型汽车扭振减振器扭振特性试验研究", 《振动与冲击》 * |
| 毛阳等: "磁流变液双质量飞轮扭振减振特性研究", 《西安交通大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623080A (en) * | 2020-05-13 | 2020-09-04 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
| CN111623080B (en) * | 2020-05-13 | 2021-07-23 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
| CN114658800A (en) * | 2020-12-23 | 2022-06-24 | 长城汽车股份有限公司 | Vibration absorbing device, transmission system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106969086B (en) | 2018-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102168736B (en) | Magnetorheological torsional vibration damper for engine | |
| CN106969090B (en) | The magnetorheological half active torsional vibration damper integrated with active adjusted based on electromagnetism | |
| CN104471278B (en) | Rotating speed adapter type vibration damper and the torsional vibration damper with this vibration damper | |
| CN105782339B (en) | Variable inertia variable damping torsional vibration damper | |
| CN109944906A (en) | Semi- active control Variable inertia double mass flywheel based on magnetic rheological liquid | |
| CN103687739A (en) | Torque transmission device | |
| CN106969086A (en) | A kind of magnetorheological torsional vibration damper for engine | |
| CN109611486B (en) | A kind of current vortex axial direction damper | |
| CN107606041A (en) | The type hybrid damper that MR damper and eddy current damper combine | |
| CN106337897A (en) | Absorber of torsional vibration from transmission shaft | |
| US11236801B2 (en) | Crankshaft assembly comprising a torsional vibration damper | |
| CN103580448A (en) | Flexible torque transmitting device | |
| CN112963489B (en) | Multi-channel multi-degree-of-freedom magnetorheological damper based on porous composite material | |
| CN110500381A (en) | A kind of combined type crankshaft tortional vibration damper | |
| CN113623349A (en) | Variable-damping brushless motor damping assembly | |
| CN110259872B (en) | Magneto-rheological inertia variable damping torsional vibration damper | |
| JP2017139840A (en) | Rotation fluctuation reduction device | |
| CN103758912B (en) | A kind of electrorheological fluid torsional vibration damper | |
| CN210371831U (en) | Combined crankshaft torsion damper | |
| KR20130061576A (en) | Balancing device for engine | |
| CN103697105A (en) | Current variable torsional vibration damper | |
| CN204784435U (en) | Silicon oil rubber shock absorber | |
| CN208858811U (en) | A kind of electromagnetic fan clutch with spring shock absorption mechanism | |
| CN208686919U (en) | A kind of belt pulley damper | |
| CN114151496A (en) | Electromagnetic magneto-rheological inertia mass damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |