CN108167386A - A kind of control method of vibration damper and vibration damper - Google Patents
A kind of control method of vibration damper and vibration damper Download PDFInfo
- Publication number
- CN108167386A CN108167386A CN201711429596.7A CN201711429596A CN108167386A CN 108167386 A CN108167386 A CN 108167386A CN 201711429596 A CN201711429596 A CN 201711429596A CN 108167386 A CN108167386 A CN 108167386A
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- Prior art keywords
- cylindrical member
- fluted disc
- vibration damper
- rotating speed
- disc component
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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
- F16F15/18—Suppression of vibrations in rotating systems by making use of members moving with the system using electric, magnetic or electromagnetic means
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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
- F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
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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
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
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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
- F16F2230/00—Purpose; Design features
- F16F2230/18—Control arrangements
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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
- F16F2232/00—Nature of movement
- F16F2232/02—Rotary
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention relates to automobile torsional vibration damper technical fields, disclose a kind of vibration damper, including fluted disc component, cylindrical member, electromagnetic coil and electromagnetic assembly, wherein, fluted disc component is connected to bent axle；Cylindrical member is circumferentially disposed on the fluted disc component centered on the center of the fluted disc component；Electromagnetic coil is wound in the outer wall of the cylindrical member；Electromagnetic assembly is set in the cylindrical member, and can be moved back and forth along the cylindrical member.The present invention solves damper structure complexity of the prior art, and of high cost, control difficulty is big, and later maintenance is difficult, and there are problems that liquid leakage.The present invention also provides a kind of control methods of vibration damper, and using the vibration damper, the bent axle drives the fluted disc component and the electromagnetic assembly to rotate together；According to current value of the rotating speed control in the electromagnetic coil under corresponding rotating speed.
Description
Technical field
The present invention relates to automobile torsional vibration damper technical field more particularly to a kind of vibration dampers and vibration damper
Control method.
Background technology
Crankshaft system can generate twisting vibration in reciprocating piston internal combustion engine work, make bent axle and related parts premature
Damage, influences the safe and reliable operating of internal combustion engine, while generate excessive noise and vibration.To solve the above problems, generally exist
The shafting installation damper of engine, the twisting vibration of bent axle, hereinafter referred to as torsional oscillation is mitigated or eliminated.
It is typically that silicone oil building rubber compound formula torsional vibration damper is mounted in shafting in the prior art, but such torsional oscillation subtracts
The device that shakes is the twisting for belonging to Purely mechanical control to eliminate or mitigate bent axle, it is impossible to accurately the torsional oscillation of bent axle be carried out in real time accurate
True adjusting control, damping characteristic are nonadjustable, and the damping characteristic generated prevents damper from reaching best vibration damping
Effect.
In order to solve the problems, such as above-mentioned silicone oil building rubber compound formula torsional vibration damper, one kind is provided in the prior art
The induction current type of self application becomes torsional vibration damper, belongs to electric current and becomes torsional vibration damper.Above-mentioned current type becomes torsional oscillation vibration damping
The primary structure of device is that housing is equipped with antifriction bush, and antifriction bush is equipped with installation gap, magnet inner core disk is embedded on notch,
Damping fluid is marked in circumferential weld gap between housing and magnet inner core disk.The surface of housing is tied with the line of magnetic induction of connection
Circle is in contact frictional position surface and housing lower end in antifriction bush with magnet inner core disk bottom end, equipped with several conductive sheets.
The characteristic of alternating current is generated using vibrating body electromagnetic induction, magnet, inner core disk outside (shell are set inside inner core disk
Body) setting induction coil, magnet and induction coil generate relative displacement, induced electromotive force will be generated in induction coil.It will
The electromotive force draws and after the conversion of alternating current-direct current, changes the resistance of its inner core disk by sensing current control ER fluid
Damping characteristics.Because the rheological behavior of ER fluid can be controlled by extra electric field, so as to be controlled by adjusting sensing electric current
The damped coefficient of ER fluid, so as to control the torsional oscillation of bent axle and Oscillation Amplitude, so as to which bent axle be enable to reach at each speed
To good effectiveness in vibration suppression.
A kind of magnetorheological torsional vibration damper for engine is additionally provided in the prior art, is powered by self application voltage regulating module,
The rotating speed increase of bent axle, centrifugal force gradually increase, and overcome the elastic force of spring, and brush is moved to the direction of spring, is moved in spring
In the process according to real-time rotating speed, brush either contacts with the second conducting ring or contacts with third conducting ring or led with the 4th
Electric ring contact, the secondary coil of transformer is controlled, which to be in the number of turns effectively to work, to be increased, and output voltage becomes larger, thus adaptive
Answer voltage regulating module that can increase output voltage, three road voltages of voltage adaptive controlling module output with the increase of actual engine speed
After over-voltage comparator, more than wherein two-way or two-way identical voltage is exported to AC-DC conversion module, it is adaptive to reduce
Voltage regulating module ensures voltage stabilization, voltage comparator output voltage is magnetic after AC-DC conversion module with the deviation of crankshaft vibration
Rheology torsional vibration damper agent structure provides stable operating voltage, generates magnetorheological torsional vibration damper agent structure corresponding big
The strong and weak magnetic field of small input voltage changes damping force.
Above-mentioned electric current becomes torsional vibration damper and magnetorheological torsional vibration damper belongs to control by electromagnetic principle, but electric current becomes
There is ER fluid leakage in torsional vibration damper, above-mentioned the two structure is required to be equipped with complicated huge control system, right
Voltage signal is answered to realize that magnetic field changes, causes vibration insulating system cost higher, and later maintenance difficulty is big, needs the technology of profession
Personnel safeguard that maintenance cost is high.
Invention content
The purpose of the present invention is to provide the control methods of a kind of vibration damper and vibration damper, existing for solving
Damper structure in technology is complicated, of high cost, and control difficulty is big, and later maintenance is difficult, and there are problems that liquid leakage.
For this purpose, the present invention uses following technical scheme：
A kind of vibration damper is provided, including：
Fluted disc component, is connected to bent axle；
Cylindrical member, it is circumferentially disposed on the fluted disc component centered on the center of the fluted disc component；
Electromagnetic coil is wound in the outer wall of the cylindrical member；
Electromagnetic assembly is set in the cylindrical member, and can be moved back and forth along the cylindrical member.
Preferably, outer ring is further included, the outer ring is set to the periphery of the cylindrical member.
Preferably, the electromagnetic assembly includes：
Piston conductor is set in the cylindrical member, and close to the one end at the fluted disc component center, and the piston is led
Body can be pressed on the fluted disc component；
Elastic component is set in the cylindrical member, and the both ends of the elastic component are connected to the outer ring and described
Piston conductor.
Preferably, control unit is further included, described control unit includes：
Sensor, for detecting the rotating speed of the fluted disc component；
Controller is connected to the sensor, is used to receive and handle the data of the sensor detection.
Preferably, the fluted disc component includes：
Fluted disc is connected to the bent axle；
Cylinder is connected to the fluted disc, the cylindrical member centered on the center of the cylinder, it is circumferentially disposed in
In the cylindrical sidewall.
Preferably, the electromagnetic coil from the one ends wound close to the cylinder in the cylindrical member, the electromagnetism
Coiling length of the coil in the periphery of the cylindrical member is gone not less than maximum slide of the piston conductor in the cylindrical member
Journey.
Preferably, the cross sectional shape of the cylindrical member is square.
A kind of control method of vibration damper, using the vibration damper, the song are additionally provided in the present invention
Axis drives the fluted disc component and the electromagnetic assembly to rotate together；
According to current value of the rotating speed control in the electromagnetic coil under corresponding rotating speed.
Preferably, the torsional oscillation value of the bent axle under corresponding rotating speed is obtained according to the rotating speed, and passes through the torsional oscillation value
The electric current in the electromagnetic coil under corresponding rotating speed is calculated.
Preferably, the rotating speed of the fluted disc of the fluted disc component is detected by sensor, and the rotating speed of detection is transmitted
To controller, after being calculated by controller, the corresponding torsional oscillation value of the rotating speed is obtained.
Beneficial effects of the present invention：
1st, it is rotated in the present invention by bent axle band active toothed disk component, after being powered in electromagnetic coil, in cylindrical member
Portion forms electromagnetic field, and electromagnetic assembly moves back and forth in cylindrical member, cutting magnetic induction line, forms reverse potential, so as to generate vortex
Effect, and then damping is generated, the torsional oscillation that bent axle generates can be offset and reduced by damping.Meanwhile the electricity for passing through control coil
The size on road so as to achieve the purpose that control damping change, and then can control the torsion of variation generated during crank rotation
It shakes.Vibration damper in the present invention, compared with the prior art, have it is simple in structure, production cost is low, control difficulty it is small, easily
Operation, later maintenance is simple, and there is no the advantages of liquid leakage.
2nd, it detects the rotating speed of fluted disc component in real time by the sensor in control unit, passes through controller receiving sensor
Data and after handling data, obtain the change curve of rotating speed and torsional oscillation, by obtained change curve, to turning round accordingly
Corresponding current size under shaking adjusts, and controls the size of electric current in electromagnetic coil by the program of controller, it is each right to make
The torsional oscillation answered can generate suitable damping and be controlled, and the torsional oscillation control for making bent axle is more accurate, and can avoid the wave of energy
Take, make the bent axle course of work more steady.
Description of the drawings
Fig. 1 is the structure diagram of the vibration damper of the present invention；
Fig. 2 is the front view of the vibration damper of the present invention；
Fig. 3 is the bottom view of the vibration damper of the present invention；
Fig. 4 is the A-A direction views of Fig. 2 of the present invention；
Fig. 5 is schematic enlarged-scale view at the I of Fig. 4 of the present invention；
Fig. 6 is the B-B direction view of Fig. 2 of the present invention.
In figure：
1st, fluted disc component；11st, fluted disc；12nd, cylinder；
2nd, cylindrical member；
3rd, electromagnetic coil；
4th, electromagnetic assembly；41st, piston conductor；42nd, elastic component；
5th, outer ring；
61st, sensor；62nd, sensor stand；
7th, wire assembly；71st, conductor loop；72nd, conducting wire fixing bracket；73rd, power lead.
Specific embodiment
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in figures 1 to 6, a kind of vibration damper is provided in the present embodiment, the vibration damper include fluted disc component 1,
Cylindrical member 2, electromagnetic coil 3, electromagnetic assembly 4, outer ring 5, control unit and wire assembly 7.Wherein, fluted disc component 1 includes fluted disc
11 and cylinder 12, fluted disc 11 be connected to bent axle；Cylinder 12 and fluted disc 11 are circumferentially arranged on the cylindrical body 12 by eight
Screw be fixedly connected, fluted disc 11 is connected on bent axle, and therefore, fluted disc 11 and cylinder 12 can be rotated with bent axle.
Above-mentioned cylindrical member 2 is circumferentially disposed on cylinder 12 centered on the center of cylinder 12.Above-mentioned cylindrical member 2
Cross sectional shape is square.Above-mentioned outer ring 5 is set to the periphery of cylindrical member 2, and the inside and the end of cylindrical member 2 of outer ring 5 are fixed
Connection, the both ends of cylindrical member 2 are respectively welded on outer ring 5 and cylinder 12.Outer ring 5, cylindrical member 2 and cylinder 12 are constituted and are subtracted
Shake device housing.
As shown in Figure 1, being additionally provided with wire assembly 7 between cylinder 12 and fluted disc 11, wire assembly 7 includes power lead
73, conductor loop 71 and conducting wire fixing bracket 72.Power lead 73 is the circuit that power supply is provided for electromagnetic coil 3, and conductor loop 71 is used
In the line for integrating electromagnetic coil extraction, power lead 73, conductor loop 71 and conducting wire fixing bracket 72 do not rotate with damper.It leads
Line fixing bracket 72 is fixed on the engine, and conductor loop 71 is fixed on conducting wire fixing bracket 72.Wire assembly 7 and cylinder 12
Between connected by bearing (not shown), so as to enable wire assembly 7 not as cylinder 12 and fluted disc 11 rotate.
Preferably, the outer wall of cylindrical member 2 along cylinder 12 is circumferentially provided with 12 in the present embodiment, the quantity of cylindrical member 2
It is increased or decreased according to real work situation.The cross sectional shape of cylindrical member 2 can also determine according to actual needs, can
Think quadrangle, circle etc., lightening hole is also provided on the side wall of cylindrical member 2, for mitigating the overall weight of damper.
Above-mentioned electromagnetic coil 3 is wound on the outer wall of cylindrical member 2, and electromagnetic coil 3 is certainly close to the one ends wound of cylinder 12
In in cylindrical member 2.As shown in Figure 4 and Figure 5, electromagnetic assembly 4 is set in cylindrical member 2, and can be moved back and forth along cylindrical member 2.
Above-mentioned electromagnetic assembly 4 includes piston conductor 41 and elastic component 42, wherein, piston conductor 41 is set in cylindrical member 2,
And close to the one end at 11 center of fluted disc, piston conductor 41 can be pressed on fluted disc component 1.It plays shape part 42 and is set to cylindrical member 2
Interior, the both ends of above-mentioned elastic component 42 are connected on the inside and piston conductor 41 of outer ring 5.Preferably, above-mentioned elastic component 42
For spring.When fluted disc 11 does not rotate, piston conductor 41 is pressed on the outer wall of cylinder 12, and piston conductor 41 is close to cylinder
12 one end is arc surface structure, and the arc surface structure of piston conductor 41 and the outer profile of cylinder 12 match contact.Work as bullet
When spring is in compressive state, there is smaller pressing force to piston conductor 41, the patch for making the arc surface structure of piston conductor 41 slight
On the cylindrical body 12, above-mentioned setting is to ensure integrally-built stability to pressure, makes overall structure in free state, structure
Stabilization will not generate shaking.
Above-mentioned control unit includes sensor 61 and controller, and wherein sensor 61 is used to detect the rotating speed of fluted disc component 1.
Preferably, controller is microcontroller.Sensor 61 is connected to microcontroller, and microcontroller is used to receiving and handling the detection of sensor 61
Data.As depicted in figs. 1 and 2, it is preferable that sensor 61 is photoelectric sensor, and fluted disc 11 is mounted on by sensor stand 62
Side, sensor stand 62 be mounted on engine (not shown) on.When bent axle band active toothed disk 11 and damper housing one
When playing rotation, the rotating speed of engine is measured in real time by photoelectric sensor, and record, and transfer data to microcontroller.
It is obtained by the analysis of microcontroller, at any time, corresponding torsional oscillation value, passes through microcontroller control under different rotating speeds
System output and a certain corresponding current value of torsional oscillation value adjust the size of the current value in electromagnetic coil 3 according to the variation of torsional oscillation,
It is thus possible to change the magnetic field in electromagnetism winding.
Above-mentioned piston conductor 41 is in rotary course, and under the influence of centrifugal force, piston conductor 41 overcomes the pressure of spring
Along 2 radial motion of cylindrical member, cutting magnetic induction line generates back-emf during the motion.By changing the electric current in electromagnetic coil 3
Size change electromagnetic field power, rate of change of magnetic is bigger, and the back-emf of generation is bigger, back-emf generate eddy current effect get over
Greatly, that is, the electromagnetic damping generated is bigger.Namely piston conductor 41 moves the damping of generation in magnetic field and overcomes or reduce
Torsional oscillation power, because of the variation of the electric current in electromagnetic coil 3, that is, the damping generated is variable damping, which can match counteracting or subtract
Corresponding torsional oscillation power under small same rotating speed.The variation of engine speed is related with centrifugal force size, and centrifugal force is in the course of work
In change always with the rotating speed of engine crankshaft, and centrifugal force is more than spring to the pressure value of piston conductor 41 certainly,
Need in this way in an opposite force and centrifugal force, i.e., the Ampere force that magnetic field generates, the pressure sum of the two of Ampere force and spring with
Centrifuge dynamic balance.
The size of electric current is also the size variation with rotating speed, and torsional oscillation also makes corresponding tune with rotation speed change, electric current
Whole size.The size for the torsional oscillation that bent axle generates is related with the amplitude of variation of speed and the torque of output terminal.When automobile engine turns
Speed is when stablizing, and conductor still has the generation of Ampere force in stationary magnetic field, and the sum of Ampere force and spring pressure are equal to centrifugation
Power.
Coiling length of the electromagnetic coil 3 in the periphery of cylindrical member 2 is sliding not less than maximum of the piston conductor 41 in cylindrical member 2
Dynamic stroke.The maximum sliding stroke of piston conductor 41 is when above-mentioned spring is in maximum compressibility, and piston conductor 41 is in tubular
Movement travel in part 2.When spring is in maximum compressibility, i.e., piston conductor 41 is range in cylindrical member 2, corresponding to be
The maximum torsional oscillation value of bent axle, the quality of piston conductor 41 determine that is obtained after being handled by microcontroller turns by following methods
Relation curve between speed and torsional oscillation, determines the corresponding rotating speed under maximum torsional oscillation value, meanwhile, it can be counted by maximum torsional oscillation value
Calculate the maximum centrifugal force that piston conductor 41 is subject to.The maximum centrifugal force and the pressure of spring being subject to by piston conductor 41, root
According to the maximum sliding stroke of above-mentioned piston conductor 41 and the radius size of cylinder 12, the matter of piston conductor 41 can be calculated
Amount, further, the density of material selected by the area of section and piston conductor 41 of cylindrical member 2 determines piston conductor 41
Size.
Vibration damper in the present embodiment cuts the electromagnetic field magnetic line of force by conductor by electromagnetic induction principle and generates instead
Potential vortex generates damping, so as to cleverly be offset to crankshaft torsional vibrations power.With it is traditional be that silicon oil damper, combined type subtract
Shake device, electric current change is compared with MR vibration damper, will not lead to the problem of liquid leakage, environmentally safe, noiseless, not by
Temperature influences, while rotary speed data can also be received and handled according to microcontroller under different rotating speeds, obtains under corresponding rotating speed
Torsional oscillation value, according to torsional oscillation value, the curent change in electromagnetic coil is controlled by microcontroller, is produced under different rotating speeds so as to reach
Raw damping adapts to the purpose of different torsional oscillations.The structure of above-mentioned vibration damper has simple in structure, easy to operate, later stage dimension
The advantages of shield is convenient, and at low cost.It also is adapted for being applied in different engine products simultaneously, be pushed away for large batch of market
Extensively, it is good in economic efficiency.
Engine speed is measured by above-mentioned photoelectric sensor, achievees the purpose that detect torsional oscillation.Pass through microcontroller
Program analyzes torsional oscillation size in real time, and the corresponding size for controlling AC power output current so as to change the power of electromagnetic field, is realized
Torsional oscillation damping size is controllable.When engine crankshaft rotates, generating centrifugal force moves piston conductor 41, in 3 inscribe of electromagnetic coil
The magnetic line of force is cut, mechanical wear will not be generated, service life is long.
The operation principle of crankshaft vibration damper in the present embodiment is：When engine works, photoelectric sensor reality can be passed through
When measure the fluctuation of speed of engine fluted disc 11, the big of corresponding torsional oscillation value under different rotating speeds is analyzed by SCM program
Small, the corresponding size for controlling AC power output current changes the magnetic field that electromagnetic coil 3 generates, and piston conductor 41 is starting
The pressure of spring is overcome to be axially moved along cylindrical member 2 under the action of machine centrifugal force, cutting magnetic induction line generates back-emf, passes through change
The size of electric current changes the power of electromagnetic field, and changes of magnetic field is bigger, and the back-emf of generation is bigger, the vortex effect of the generation of back-emf
It should be also bigger.Back-emf generate eddy current effect in magnetic field stress it is bigger, that is, generate damping it is bigger, the damping can offset or
Reduce torsional oscillation power.
A kind of control method of crankshaft vibration damper is additionally provided in the present embodiment, using above-mentioned crankshaft vibration damper, bent axle drives
Active toothed disk component 1 and electromagnetic assembly 4 rotate together；Preferably, it is controlled according to rotating speed in the electromagnetic coil 3 under corresponding rotating speed
Current value.The torsional oscillation value of bent axle under corresponding rotating speed is obtained, and pass through torsional oscillation value and be calculated under corresponding rotating speed according to rotating speed
Electric current in electromagnetic coil 3.It is further preferred that the rotating speed of the fluted disc 11 of fluted disc component 1 is detected by sensor 61, and will inspection
The rotating speed of survey is sent to controller, after being calculated by controller, obtains the corresponding torsional oscillation value of rotating speed.By piston conductor 41
Radial motion in cylindrical member 2, so as to which the torsional oscillation of bent axle generation can be offset or be reduced to the damping for making generation.
By above-mentioned control method, the torsional oscillation that bent axle can be controlled to be generated in rotation process effectively, in real time.And pass through
Control unit is made corresponding output current according to the different rotating speeds of bent axle and is changed, the torsion that bent axle is made to be generated under different rotating speeds
It shakes, suitable damping can be generated by 41 cutting magnetic induction line of piston conductor and is offset or is eliminated, controls the torsional oscillation of bent axle
It is more accurate, and the waste of energy can be avoided, make the bent axle course of work more steady.Avoid under synchronization, damping and
The size of the torsional oscillation value of bent axle matches inappropriate situation.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating example of the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (10)
1. a kind of vibration damper, which is characterized in that including：
Fluted disc component (1), is connected to bent axle；
Cylindrical member (2), it is circumferentially disposed on the fluted disc component (1) centered on the center of the fluted disc component (1)；
Electromagnetic coil (3) is wound in the outer wall of the cylindrical member (2)；
Electromagnetic assembly (4) is set in the cylindrical member (2), and can be moved back and forth along the cylindrical member (2).
2. vibration damper according to claim 1, which is characterized in that further include outer ring (5), outer ring (5) setting
In the periphery of the cylindrical member (2).
3. vibration damper according to claim 2, which is characterized in that the electromagnetic assembly (4) includes：
Piston conductor (41) is set in the cylindrical member (2), and close to the one end at fluted disc component (1) center, described
Piston conductor (41) can be pressed on the fluted disc component (1)；
Elastic component (42) is set in the cylindrical member (2), and the both ends of the elastic component (42) are connected to the outer ring
(5) and the piston conductor (41).
4. vibration damper according to claim 1, which is characterized in that further include control unit, described control unit packet
It includes：
Sensor (61), for detecting the rotating speed of the fluted disc component (1)；
Controller is connected to the sensor (61), is used to receive and handle the data of the sensor (61) detection.
5. vibration damper according to claim 3, which is characterized in that the fluted disc component (1) includes：
Fluted disc (11), is connected to the bent axle；
Cylinder (12) is connected to the fluted disc (11), and the cylindrical member (2) is using the center of the cylinder (12) in
The heart, it is circumferentially disposed on the cylinder (12) side wall.
6. vibration damper according to claim 5, which is characterized in that the electromagnetic coil (3) is from close to the cylinder
The one ends wound of body (12) is in the cylindrical member (2), and the electromagnetic coil (3) is in the winding of the periphery of the cylindrical member (2)
Length is not less than maximum sliding stroke of the piston conductor (41) in the cylindrical member (2).
7. vibration damper according to claim 1, which is characterized in that the cross sectional shape of the cylindrical member (2) is pros
Shape.
8. a kind of control method of vibration damper, using the vibration damper any in claim 1-7, feature exists
In,
The bent axle drives the fluted disc component (1) and the electromagnetic assembly (4) to rotate together；
According to current value of the rotating speed control in the electromagnetic coil (3) under corresponding rotating speed.
9. the control method of vibration damper according to claim 8, which is characterized in that
The torsional oscillation value of the bent axle under corresponding rotating speed is obtained, and correspondence is calculated by the torsional oscillation value according to the rotating speed
The electric current in the electromagnetic coil (3) under rotating speed.
10. the control method of vibration damper according to claim 9, which is characterized in that
The rotating speed of the fluted disc (11) of the fluted disc component (1) is detected by sensor (61), and the rotating speed of detection is transmitted
To controller, after being calculated by controller, the corresponding torsional oscillation value of the rotating speed is obtained.
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|---|---|---|---|
| CN201711429596.7A CN108167386B (en) | 2017-12-26 | 2017-12-26 | A kind of control method of vibration damper and vibration damper |
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|---|---|---|---|
| CN201711429596.7A CN108167386B (en) | 2017-12-26 | 2017-12-26 | A kind of control method of vibration damper and vibration damper |
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| CN108167386A true CN108167386A (en) | 2018-06-15 |
| CN108167386B CN108167386B (en) | 2019-07-05 |
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| CN109632317A (en) * | 2018-11-06 | 2019-04-16 | 宁波赛德森减振系统有限公司 | A kind of automobile crane information acquisition device |
| CN113575137A (en) * | 2021-08-20 | 2021-11-02 | 湖南人文科技学院 | Agricultural grain stripping machine with good corn grain separation effect |
| CN114909425A (en) * | 2022-04-27 | 2022-08-16 | 宁波中策动力机电集团有限公司 | Variable-damping vibration attenuation mechanism of high-power marine engine and method thereof |
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| CN115971528B (en) * | 2023-02-28 | 2023-10-03 | 徐州巴特工程机械股份有限公司 | Large-scale rotating member perforating device |
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