CN109826905A - The energy damping of one kind controls vibration absorber certainly - Google Patents
The energy damping of one kind controls vibration absorber certainly Download PDFInfo
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- CN109826905A CN109826905A CN201910266399.0A CN201910266399A CN109826905A CN 109826905 A CN109826905 A CN 109826905A CN 201910266399 A CN201910266399 A CN 201910266399A CN 109826905 A CN109826905 A CN 109826905A
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Abstract
It is disclosed by the invention to belong to vibration damping and vibration isolation technical field, specially a kind of energy damping controls vibration absorber certainly, including piezoelectricity energy regenerative unit and electromagnetic induction from control unit, the piezoelectricity energy regenerative unit includes upper hinge support assembly, piston rod, piezoelectric ceramics lamination, upper spring seat, the top interference fit of the upper hinge support assembly connects the piston rod, the bottom of the upper hinge support assembly is bonded the piezoelectric ceramics lamination, the bottom of the piezoelectric ceramics lamination is bonded the upper spring seat, the bottom of the upper spring seat is fixedly installed with helical spring, the inner wall bottom fixation of the helical spring is plugged with oil storage cylinder barrel, the inner wall of the oil storage cylinder barrel is fixedly installed with work cylinder barrel, the invention uses semi- active control, vibration isolation optimal damping characteristic is realized by adjusting magnetic field strength, vibration can be effectively isolated in wider frequency band Dynamic transmitting, while being controlled without external world ECU, lower-cost resultant effect.
Description
Technical field
The present invention relates to vibration damping and vibration isolation technical field, specially a kind of energy damping controls vibration absorber certainly.
Background technique
Vibration (vibration) refers to reciprocating motion made by equilbrium position of the object around it or system physical amount at it
Average value (or equilibrium valve) nearby changes back and forth.Vibration is one of most common phenomenon of nature, is widely present in daily life
Or in production practices, such as the vibration of pendulum, the vibration of string, heartthrob, ear-drum and the vibration of vocal cords etc..
In field of engineering technology, oscillation phenomenon more can be found everywhere, such as caused itself when locomotive, vehicle driving
Vibrate and support its route, bridge vibration of beam；Machinery equipment operate when or workshop caused when earthquake or dykes and dams vibration
It is dynamic；The vibration that the fluctuation pressure of wind generates the buildings such as power transmission line, chimney, water tower, bridge；Ship or aircraft are under sail
Vibration etc..
Violent vibration can cause the destruction of works or parts；For precision instrument or machining, vibrate shadow
Ring its sensitivity or accuracy；Vibration, which will consume, energy thus reduces the efficiency of machine；Vibration and simultaneous noise make
Working condition deteriorates；The vibration of aircraft, vehicle, ship etc. influences the health of passenger, or even jeopardize safety etc..It should set
Method eliminates these harmful vibrations or mitigates its harm.In recent years, the requirement with people for comfort and mechanical precision is got over
Come higher, traditional suspension and passive damper and is difficult to meet client for vibration damping and vibration isolation requirement.
Vibration absorber in the prior art can not achieve automatic control, and the effect of vibration damping is poor, often existing to subtract
Vibrating device generally requires additional ECU and is controlled, and substantially increases cost, while the movement of the vibration of damper is larger, reliably
Property it is lower, secondly do not have energy regenerative function, therefore need to research and develop a kind of energy damping from control vibration absorber.
Summary of the invention
The purpose of the present invention is to provide a kind of energy dampings from control vibration absorber, to solve to can not achieve automatically
Control, the effect of vibration damping is poor, and often existing vibration absorber generally requires additional ECU and controlled, and substantially increases cost,
The problem of movement of the vibration of damper is larger simultaneously, reliability more low characteristic.
To achieve the above object, the invention provides the following technical scheme: a kind of energy damping is wrapped from control vibration absorber
Piezoelectricity energy regenerative unit and electromagnetic induction are included from control unit, the piezoelectricity energy regenerative unit includes upper hinge support assembly, piston rod, pressure
The top interference fit of electroceramics lamination, upper spring seat, the upper hinge support assembly connects the piston rod, the upper hinge support
The bottom of assembly is bonded the piezoelectric ceramics lamination, and the bottom of the piezoelectric ceramics lamination is bonded the upper spring seat, it is described on
The bottom of spring base is fixedly installed with helical spring, and the inner wall bottom fixation of the helical spring is plugged with oil storage cylinder barrel, described
The inner wall of oil storage cylinder barrel is fixedly installed with work cylinder barrel, and the guider assembly, institute is fixedly mounted in the top of the work cylinder barrel
The bottom for stating work cylinder barrel is fixedly installed with bottom valve assembly, and the piston rod is described through the top for connecting the work cylinder barrel
Screw path type assembly is fixedly installed in the middle part of the inner wall of work cylinder barrel, the screw path type assembly includes adjustment gasket, spiral shell
Piston, control coil and locking nut are revolved, the control coil, the control line is fixedly mounted in the bottom end outer wall of the piston rod
The screw piston is fixedly mounted in the inner wall of circle, and the screw piston is fixedly mounted on the piston rod by the locking nut
Bottom, the adjustment gasket, the fixed peace of the right side wall of the upper hinge support assembly is fixedly mounted in the top of the screw piston
Equipped with electromagnetic induction from control unit, the electromagnetic induction from control unit include lower spring cup, fixing bolt, permanent magnet, bullet
Property washer, permanent magnet fixture nut, feedback coil, external cylinder barrel, control unit, external cylinder barrel guider, conducting wire and guide rod,
Up and down direction through the guide rod is plugged with, lead with described by the top of the external cylinder barrel in the middle part of the inner wall of the external cylinder barrel
To the external cylinder barrel guider is fixedly mounted between bar, the feedback line is fixedly mounted in the inner wall bottom of the external cylinder barrel
Circle, the middle part of the guide rod is sequentially installed with permanent magnet fixture nut, elastic washer and permanent magnet, the guiding from top to bottom
The bottom end of bar is mounted at the top of lower spring cup by fixing bolt, and the feedback coil and control coil pass through conducting wire and control
Unit is electrically connected.
Preferably, the outer wall of the piezoelectric ceramics lamination is coated with insulating layer.
Preferably, the bottom end of the piston rod is fixedly installed with piston assembly by the locking nut, and the piston is total
At the inner wall for being located at the work cylinder barrel, it is slidably connected between the piston assembly and the work cylinder barrel.
Preferably, the outer wall of the external cylinder barrel offers aperture, conducting wire described in grafting in the aperture.
Preferably, the piston rod is moved back and forth in the inner wall of the work cylinder barrel, and the helical spring is with the piston
Bar moves up and down reciprocal stretching or compression.
Preferably, the inner hole of the piston rod is connect with the piston rod transition fit, the ruler of the piston rod matching hole
Very little tolerance is H7/m6, and piston rod matching surface roughness is Ra1.6.
Preferably, the screw piston outer surface mills out a plurality of zigzag shape inertia channel, screw piston inner hollow.
Compared with prior art, the beneficial effects of the present invention are: control subtracts certainly the invention provides a kind of energy damping
Vibrating device realizes automanual control using control unit, and control unit controls control coil and feedback coil, feedback coil hair
Induced current size out will also change, and after the processing such as rectifier boost, pass through on screw piston in spiral inertia channel
Magnetic field strength changes correspondingly, and the variation of magnetic field strength influences the viscosity of magnetic rheological liquid in inertia channel, thus it is living to change spiral
It fills in suffered liquid resistance and then changes resistance of shock absorber, the magnetic field strength decline that control coil issues, so that it is living to flow through spiral
The viscosity for filling in the magnetic rheological liquid of inertia channel reduces, and the damping force that damper generates becomes smaller, and pressure subtracts on piezoelectric ceramics lamination
Current reduction small, that piezoelectric effect generates, the electric current issued after reversed with feedback coil are superimposed, and make master control electric current liter
Height, the magnetic field strength that control coil issues rise, so that the magnetic rheological liquid for flowing through spiral inertia channel in screw piston is viscous
Degree rises, and the damping force that damper generates becomes larger, and realizes the passive self control function of resistance of shock absorber, the fixed peace on vibration absorber
It equipped with control unit, is directly controlled using control unit, reduces cost, improve unfailing performance, while utilizing control
Unit processed by vibration energy regeneration and can store, and improve the economy of institute application.
Detailed description of the invention
Fig. 1 is main view of the energy damping from control vibration absorber；
Fig. 2 is the cross-sectional view of helical duct piston assembly；
Fig. 3 is the external view of helical duct piston；
Fig. 4 is the shape 3-D view of helical duct piston；
Fig. 5 is that piezoelectric type energy feed system installs view；
Fig. 6 is electromagnetic induction device cross-sectional view；
Fig. 7 is second of optional channel profile piston top view；
Fig. 8 is the third optional channel profile piston top view；
Fig. 9 is to control strategic process figure when realizing the passive autonomous control of vibration absorber；
Figure 10 is that coil current flows to schematic diagram.
In figure: 1 upper hinge support assembly, 2 piston rods, 3 piezoelectric ceramics laminations, 4 upper spring seats, 5 helical springs, 6 guiders
Assembly, 7 adjustment gaskets, 8 screw pistons, 9 control coils, 10 locking nuts, 11 work cylinder barrels, 12 oil storage cylinder barrels, 13 bottom valves are total
At, 14 lower spring cups, 15 fixing bolts, 16 permanent magnets, 17 elastic washers, 18 permanent magnet fixture nuts, 19 feedback coils, outside 20
Set cylinder barrel, 21 control units, 22 external cylinder barrel guiders, 23 conducting wires, 24 guide rods, 25 piezoelectricity energy regenerative units, 26 helical ducts
Formula assembly, 27 electromagnetic induction are from control unit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution: the energy damping of one kind is from control vibration absorber, for realizing semi-automatic control
System improves security reliability, please refers to Fig. 1-Fig. 6 and Fig. 8, including piezoelectricity energy regenerative unit 25 and electromagnetic induction are from control unit
27, piezoelectricity energy regenerative unit 25 includes upper hinge support assembly 1, piston rod 2, piezoelectric ceramics lamination 3, upper spring seat 4, and upper hinge support is total
At 1 top interference fit connection piston rod 2, the inner hole of piston rod 2 is connect with 2 transition fit of piston rod, using grinding
2 matching surface of piston rod, right boring add 2 matching hole of piston rod, and the dimensional tolerance of 2 matching hole of piston rod is H7/m6, piston rod 2
Matching surface roughness is Ra1.6, and the bottom of upper hinge support assembly 1 is bonded piezoelectric ceramics lamination 3, piezoelectric ceramics lamination 3 it is outer
Wall is coated with insulating layer, and piezoelectric ceramics lamination 3 is connected by conducting wire 23 with automobile batteries, and the bottom end of piston rod 2 passes through locking screw
Mother 10 is connected with piston assembly, and piston assembly is located at the inner wall of work cylinder barrel 11, slides between piston assembly and work cylinder barrel 11
It is cooperatively connected, realization is moved up and down on piston rod 2 using oil storage cylinder barrel 12, inner wall of the piston rod 2 in work cylinder barrel 11
It moves back and forth, helical spring 5 moves up and down reciprocal stretching or compression with piston rod 2, and helical spring 5 is utilized to realize the work of vibration damping
With the bottom of piezoelectric ceramics lamination 3 is bonded upper spring seat 4, and the bottom of upper spring seat 4 has been fitted and connected helical spring 5, spiral bullet
The inner wall bottom of spring 5 is plugged with oil storage cylinder barrel 12, and the inner wall of oil storage cylinder barrel 12 is integrally formed with work cylinder barrel 11, work cylinder barrel 11
Using 304 stainless steel makings, 304 stainless steels have the characteristics that every magnetic, and magnetic field can effectively be guided to pass through screw piston inertia channel
In middle magnetorheological fluid, prevent magnetic from revealing to maximally utilize the magnetic field of generation, the top of work cylinder barrel 11 is led by bolt installation
To device assembly 6, the bottom of work cylinder barrel 11 is bolted installation bottom valve assembly 13, and piston rod 2 is through connection work cylinder barrel
The inner wall middle part at 11 top, work cylinder barrel 11 is socketed screw path type assembly 26, and the right side wall of upper hinge support assembly 1 is welded with
Electromagnetic induction is electrically connected from control unit 27, control coil 9 by conducting wire 23 and control unit 21, and control unit 21 is ECU,
The magnetic field strength that control coil 9 is incuded and controlled using control unit 21, please refers to Fig. 1 and Fig. 2, and screw path type assembly 26 wraps
Include adjustment gasket 7, screw piston 8, control coil 9 and locking nut 10, the bottom end outer wall of piston rod 2 is spirally connected control coil 9, control
The inner wall of coil 9 processed is fitted and connected screw piston 8, and 8 outer surface of screw piston mills out six zigzag shape inertia channels, spiral
8 inner hollow of piston, screw piston 8 are fixedly mounted on the bottom of piston rod 2, the top of screw piston 8 by locking nut 10
Clamping adjustment gasket 7, please refers to Fig. 1 and Fig. 6, electromagnetic induction from control unit 27 include lower spring cup 14, fixing bolt 15, forever
Magnet 16, elastic washer 17, permanent magnet fixture nut 18, feedback coil 19, external cylinder barrel 20, control unit 21, external cylinder barrel
Guider 22, conducting wire 23 and guide rod 24, the outer wall of external cylinder barrel 20 offer aperture, grafting conducting wire 23 in aperture, by conducting wire
23 insertion apertures are realized the electric connection of conducting wire 23 and control unit 21 on feedback coil 19, the inner wall of external cylinder barrel 20
Middle part up and down direction is clamped external cylinder barrel guiding through guide rod 24 is plugged between the top and guide rod 24 of external cylinder barrel 20
The inner wall bottom of device 22, external cylinder barrel 20 is socketed feedback coil 19, and the middle part of guide rod 24 is sequentially installed with permanent magnetism from top to bottom
Body fixture nut 18, elastic washer 17 and permanent magnet 16, using permanent magnet fixture nut 18 by permanent magnet 16 and elastic washer 17
It is connected to the middle part of guide rod 24, the bottom end of guide rod 24 is mounted on 14 top of lower spring cup by fixing bolt 15.
In the specific use process, of the invention during use with the change of 8 movement velocity of screw piston when needing
Change, the induced current size that feedback coil 19 issues will also change, and after the processing such as rectifier boost, act on control coil
Size of current on 9 is positively correlated with 8 movement velocity of screw piston, then the magnetic field in spiral inertia channel on screw piston 8
Intensity changes correspondingly, and the variation of magnetic field strength influences the viscosity of magnetic rheological liquid in inertia channel, thus changes 8 institute of screw piston
By liquid resistance and then change resistance of shock absorber.In compression travel, since the pressure on piezoelectric ceramics lamination 3 increases, piezoelectricity
The electric current that effect generates improves, and is superimposed issuing electric current with feedback coil 19 after reversed, so that master control current reduction, control
The magnetic field strength decline that coil 9 processed issues, so that flowing through the viscosity of the magnetic rheological liquid of 8 inertia channel of screw piston reduces,
The damping force that damper generates becomes smaller；In extended travel, pressure reduces on piezoelectric ceramics lamination 3, the electricity that piezoelectric effect generates
Stream reduces, and the electric current issued after reversed with feedback coil 19 is superimposed, and increases master control electric current, what control coil 9 issued
Magnetic field strength rises, so that the magnetorheological liquid viscosity for flowing through spiral inertia channel in screw piston 8 rises, damper is generated
Damping force become larger.Realize the passive self control function of resistance of shock absorber.
Fig. 2-Fig. 4 show the energy damping of the present invention from the first embodiment for controlling vibration absorber, and it is above-mentioned
Unlike embodiment, screw path type assembly 26 uses spiral inertia damping channel, such structure-controllable inertia channel
Length is long and is curved channel, and the direction of motion is inconsistent with liquid flow path direction, and basis damping is larger, and low frequency vibration isolation effect is good.
Fig. 7 shows the energy damping of the present invention from second of embodiment for controlling vibration absorber, with above-mentioned implementation
Unlike mode, screw path type assembly 26 uses quad straight inertia damping channel, and such structure-controllable inertia channel is long
Spend it is short, and be beeline channel, parallel with piston axis, passive damping is small compared with the first structure, and Mid Frequency vibration isolating effect is preferable.
Fig. 2-Fig. 4 show the energy damping of the present invention from the third embodiment for controlling vibration absorber, and it is above-mentioned
Unlike embodiment, screw path type assembly 26 uses dovetail groove linear inertia damp channel, and by axial annular coil
Arrangement is changed to radially Zhou Buliu group control coil 9, and such structure has the spy that inertia channel magnetic flux rate is high, magnetic field utilization rate is big
Point, damping controlled range is higher, but basic passive damping is lower than aforementioned structure, is suitble to wide-band vibration isolation.
Referring to Fig. 9, when damper work, with the variation of 8 movement velocity of screw piston, the sense of the sending of feedback coil 19
Answer size of current that will also change, it is living in the size of current and spiral after the processing such as rectifier boost, acted on control coil 9
It fills in 8 movement velocitys to be positively correlated, then magnetic field strength changes correspondingly in spiral inertia channel on screw piston 8, magnetic field strength
Variation influence inertia channel in magnetic rheological liquid viscosity, thus change piston suffered by liquid resistance, to realize damper
Damping force is from controlling, and in compression travel, since the pressure on piezoelectric ceramics lamination 3 increases, the electric current that piezoelectric effect generates is mentioned
Height is superimposed issuing electric current with feedback coil 19 after reversed, so that master control current reduction, the magnetic that control coil 9 issues
Field intensity decline, so that flowing through the viscosity of the magnetic rheological liquid of 8 inertia channel of screw piston reduces, the damping that damper generates
Power becomes smaller, and in extended travel, pressure reduces on piezoelectric ceramics lamination 3, the current reduction that piezoelectric effect generates, after reversed
The electric current issued with feedback coil 19 is superimposed, and increases master control electric current, and the magnetic field strength that control coil 9 issues rises, thus
The magnetorheological liquid viscosity for flowing through spiral inertia channel in screw piston 8 rises, and the damping force that damper generates becomes larger.
Referring to Fig. 10, signal is passed to control unit 21 by feedback coil 19 and piezoelectric unit, control unit 21 is passed through
The operating of control coil 9 is controlled after data processing.
Although hereinbefore invention has been described by reference to embodiment, the scope of the present invention is not being departed from
In the case where, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as being not present
Structural conflict, the various features in presently disclosed embodiment can be combined with each other use by any way,
The description for not carrying out exhaustive to the case where these combinations in this specification is examined merely for the sake of omission length with what is economized on resources
Consider.Therefore, the invention is not limited to specific embodiments disclosed herein, but the institute including falling within the scope of the appended claims
There is technical solution.
Claims (7)
1. a kind of energy damping controls vibration absorber certainly, it is characterised in that: including piezoelectricity energy regenerative unit (25) and electromagnetic induction
From control unit (27), the piezoelectricity energy regenerative unit (25) includes upper hinge support assembly (1), piston rod (2), piezoelectric ceramics lamination
(3), the top interference fit of upper spring seat (4), the upper hinge support assembly (1) connects the piston rod (2), described hinged
The bottom of seat assembly (1) is bonded the piezoelectric ceramics lamination (3), and the bottom of the piezoelectric ceramics lamination (3) is bonded the upper bullet
The bottom of spring abutment (4), the upper spring seat (4) is fixedly installed with helical spring (5), the inner wall bottom of the helical spring (5)
Fixation is plugged with oil storage cylinder barrel (12), and the inner wall of the oil storage cylinder barrel (12) is fixedly installed with work cylinder barrel (11), the work
The guider assembly (6) is fixedly mounted in the top of cylinder barrel (11), and the bottom of the work cylinder barrel (11) is fixedly installed with bottom valve
Assembly (13), the piston rod (2) is in the top for connecting the work cylinder barrel (11), the inner wall of the work cylinder barrel (11)
Portion is fixedly installed with screw path type assembly (26), and the screw path type assembly (26) includes adjustment gasket (7), screw piston
(8), the control coil (9) is fixedly mounted in the bottom end outer wall of control coil (9) and locking nut (10), the piston rod (2),
The screw piston (8) is fixedly mounted in the inner wall of the control coil (9), and the screw piston (8) passes through the locking nut
(10) it is fixedly mounted on the bottom of the piston rod (2), the adjustment gasket is fixedly mounted in the top of the screw piston (8)
(7), the right side wall of the upper hinge support assembly (1) is fixedly installed with electromagnetic induction from control unit (27), the electromagnetic induction
It include that lower spring cup (14), fixing bolt (15), permanent magnet (16), elastic washer (17), permanent magnet are solid from control unit (27)
Determine nut (18), feedback coil (19), external cylinder barrel (20), control unit (21), external cylinder barrel guider (22), conducting wire (23)
With guide rod (24), the inner wall middle part up and down direction of the external cylinder barrel (20), which runs through, to be plugged with the guide rod (24), described
The external cylinder barrel guider (22) is fixedly mounted between the top and the guide rod (24) of external cylinder barrel (20), it is described external
The feedback coil (19) is fixedly mounted in the inner wall bottom of cylinder barrel (20), and the middle part of the guide rod (24) is successively pacified from top to bottom
Equipped with permanent magnet fixture nut (18), elastic washer (17) and permanent magnet (16), the bottom end of the guide rod (24) passes through fixation
Bolt (15) is mounted at the top of lower spring cup (14), the feedback coil (19) and control coil (9) by conducting wire (23) and
Control unit (21) is electrically connected.
2. the energy damping of one kind according to claim 1 controls vibration absorber certainly, it is characterised in that: the piezoelectric ceramics
The outer wall of lamination (3) is coated with insulating layer.
3. the energy damping of one kind according to claim 1 controls vibration absorber certainly, it is characterised in that: the piston rod
(2) bottom end is fixedly installed with piston assembly by the locking nut (10), and the piston assembly is located at the work cylinder barrel
(11) inner wall is slidably connected between the piston assembly and the work cylinder barrel (11).
4. the energy damping of one kind according to claim 1 controls vibration absorber certainly, it is characterised in that: the external cylinder barrel
(20) outer wall offers aperture, conducting wire described in grafting (23) in the aperture.
5. the energy damping of one kind according to claim 1 controls vibration absorber certainly, it is characterised in that: the piston rod
(2) it is moved back and forth in the inner wall of the work cylinder barrel (11), helical spring (5) the moving up and down with the piston rod (2)
It is reciprocal to stretch or compress.
6. the energy damping of one kind according to claim 1 controls vibration absorber certainly, it is characterised in that: the piston rod
(2) inner hole is connect with the piston rod (2) transition fit, and the dimensional tolerance of piston rod (2) matching hole is H7/m6, living
Stopper rod (2) matching surface roughness is Ra1.6.
7. the energy damping of one kind according to claim 1 controls vibration absorber certainly, it is characterised in that: the screw piston
(8) outer surface mills out a plurality of zigzag shape inertia channel, screw piston (8) inner hollow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910266399.0A CN109826905B (en) | 2019-04-03 | 2019-04-03 | Energy feedback type damping self-control vibration damper |
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| CN201910266399.0A CN109826905B (en) | 2019-04-03 | 2019-04-03 | Energy feedback type damping self-control vibration damper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206152A (en) * | 2019-06-04 | 2019-09-06 | 中原工学院 | The gimbal point structure of steel construction X beam Y shape column |
| CN111530534A (en) * | 2020-05-10 | 2020-08-14 | 蔡永霞 | Handheld piezoelectric type medicine pestle |
| CN111668790A (en) * | 2020-06-18 | 2020-09-15 | 中网电力科技有限公司 | Cable spacer for assisting in slowing down vibration of high-altitude cable |
| CN114535632A (en) * | 2022-04-01 | 2022-05-27 | 哈尔滨理工大学 | MRE-based active variable-stiffness vibration damping boring bar suitable for deep hole machining |
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| CN105711368A (en) * | 2016-03-07 | 2016-06-29 | 大连理工大学 | Electromagnetic energy harvesting system based on passive suspension |
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