CN109612566A - A kind of vibration monitor - Google Patents
A kind of vibration monitor Download PDFInfo
- Publication number
- CN109612566A CN109612566A CN201910137198.0A CN201910137198A CN109612566A CN 109612566 A CN109612566 A CN 109612566A CN 201910137198 A CN201910137198 A CN 201910137198A CN 109612566 A CN109612566 A CN 109612566A
- Authority
- CN
- China
- Prior art keywords
- swing arm
- damping
- ring
- extension rod
- bar
- 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
- 238000013016 damping Methods 0.000 claims abstract description 114
- 238000012544 monitoring process Methods 0.000 claims abstract description 43
- 230000010355 oscillation Effects 0.000 claims abstract description 27
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000012512 characterization method Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 81
- 239000007788 liquid Substances 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims 1
- 239000000306 component Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 244000131316 Panax pseudoginseng Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
- G01H1/16—Amplitude
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention discloses a kind of vibration monitor, comprising: bracket；Swing arm, including be flexibly connected with bracket and can swing arm ball freely rotated, upper end be fixedly connected with the swing arm ball swing arm bar, be set to the counterweight of swing arm bar lower end and first end is connect with the lower end of swing arm bar and second end extends downwardly or first end is connect with the upper end of swing arm bar and second end upwardly extends extension rod；Damping system has swung damping action to swing arm；Swing arm can be swung to lateral arbitrary orientation, the oscillation intensity of amplitude of fluctuation characterization monitoring position, the direction of the horizontal component in the directional force seismic source direction of the horizontal component of swaying direction.The present invention has the characteristics that miniaturization, cheap, operation is simple, easy to maintain, can be monitored to the direction of the horizontal component for the oscillation intensity and direction of earthquake source for monitoring position.
Description
Technical field
The present invention relates to detection devices, and in particular to vibration monitor.
Background technique
The as low as microcosmic particles such as electronics, atom, molecule, greatly to electronic product equipment, the earth, celestial body, universe, people exist
The vibration that them are monitored by various equipment and instruments, obtains numerous datas, and research achievement has been widely used in
In our daily life and work.Now, the vibrating sensor of vibration monitoring device is generally close to mechanical equipment by people, is carried out
The monitoring of mechanical equipment vibration；Or vibration monitoring device is placed in ground, directly monitor the vibration of the earth.It is larger for vibrating
Monitoring, common vibration monitoring equipment can satisfy requirement, but for vibrating faint finish machining equipment, the earth
Deng vibration, then monitoring data are distorted.Such as the seismic detector of toe-out weighing apparatus invention in more than 1900 years, the seismological observation platform that present country uses
Net etc., they are high to vibration monitoring precision, can monitor faint vibration signal, can be used for monitoring finishing and set
The vibration of standby, the earth etc., but complicated large scale equipment themselves is belonged to, and special messenger is needed to safeguard, it is not suitable for
In common enterprises and institutions, individual.As present finish machining equipment, people are for seismic safety consciousness etc. development, it is suitable for common
Enterprises and institutions, a kind of personal miniaturization, weak vibration monitor cheap, operation is simple, easy to maintain, become people day
The urgent demand of benefit.
Summary of the invention
The purpose of the present invention is to provide a kind of vibration monitors, for the oscillation intensity and direction of earthquake source to monitoring position
The direction of horizontal component be monitored.
The present invention adopts the following technical solutions:
A kind of vibration monitor, comprising:
Bracket；
Swing arm comprising be flexibly connected with the bracket and energy swing arm ball freely rotated, upper end and the swing arm ball are fixed and connected
The swing arm bar that connects, the counterweight for being set to the swing arm bar lower end and first end is connect with the lower end of the swing arm bar and second end is downward
Extension or the extension rod that first end is connect with the upper end of the swing arm bar and second end upwardly extends；
Damping system has swung damping action to the swing arm；
Wherein, the swing arm can be swung to lateral arbitrary orientation, the oscillation intensity of amplitude of fluctuation characterization monitoring position,
The direction of the horizontal component in the directional force seismic source direction of the horizontal component of swaying direction.
Further include:
Displacement sensor is set to the extension rod, be used to obtain itself relative to itself position when static
The displacement parameter swung；
Computing unit, displacement equations multiple K, damping system parameter and acquired displacement parameter based on the extension rod
Calculate the numerical value of the numerical value of the oscillation intensity of monitoring position and the horizontal component direction of direction of earthquake source；
Wherein, the distance of institute's displacement sensors to the swing arm ball centre of sphere is L, and the swing arm bar, extension rod, displacement pass
Sensor, the distance with the center of gravity to coincide together to the swing arm ball centre of sphere are L0, then K=L/L0。
Displacement equations multiple K, damping system parameter and acquired displacement ginseng of the computing unit based on the extension rod
Meter calculates the algorithm of the numerical value in the numerical value of the oscillation intensity of monitoring position and the horizontal component direction of direction of earthquake source as noise filter
Wave algorithm.
The noise filtering algorithm is Kalman filtering algorithm.
The bracket include pedestal, one end be fixed on the first upright bar that the pedestal other end upwardly extends and the second upright bar,
Both ends are individually fixed in the cross bar of first upright bar and the second upright bar and are set to the cavity of the cross bar, and the swing arm ball activity is set
It is placed in the cavity.
The cavity:
First cavity, is set to the cross bar top surface, and bottom has the first aperture；
Second cavity, is set to fixed block, which, which is covered on first cavity, makes the first cavity and the second cavity
The cavity is collectively formed；
Wherein, when the second end of the extension rod extends downwardly, the swing arm bar passes through first aperture and can Xiang Heng
It is swung to arbitrary orientation；When the second end of the extension rod upwardly extends, the top of second cavity has the second aperture, institute
Extension rod is stated across second aperture and can be swung to lateral arbitrary orientation.
The damping system includes:
Dampening bracket；
Snap ring is damped, the dampening bracket is installed on, ring inner wall has the damping slot circumferentially extended along ring inner wall；
Magnet ring is set in the damping slot and can radially move back and forth；
Magnetic part, is set to the counterweight, and polarity is identical as the magnet ring polarity；It is reconstructed into alternatively, the magnetic part is matched by this, it should
Counterweight is made of polarity magnetic material identical with the magnet ring polarity；
Alternatively,
The damping system includes:
Dampening bracket；
Snap ring is damped, the dampening bracket is installed on, ring inner wall has the damping slot circumferentially extended along ring inner wall；
Electrostatic ring is set in the damping slot and can radially move back and forth；
Electrostatic part is set to the counterweight, and the charge of charge and the electrostatic ring is homophilic charge；Alternatively, the electrostatic
By this with being reconstructed into, which is made part of charge electrostatic material identical with the charge of the electrostatic ring；
Wherein, which is located in the damping snap ring inner ring.
The damping system includes:
Dampening bracket；
Snap ring is damped, the dampening bracket is installed on, ring inner wall has the damping slot circumferentially extended along ring inner wall；
Inner ring is set in the damping slot and can radially move back and forth；
Outer ring is set in the swing arm bar, counterweight or extension rod outer wall；
Elastic component, one end are connect with the outer ring, and the other end is connect with the inner ring；
Wherein, which is located in the damping snap ring inner ring.
The elastic component is spring band, tension spring or rubber band.
The damping system includes:
Liquid fills, and is set to below the swing arm bar, has the through-hole being connected to tank internal cavity；
Viscous liquid, loaded in liquid filling；
Damping hammer, immerses the viscous liquid；
Flexible wires, when the second end of the extension rod extends downwardly, pass through the through-hole by the damping hammer with this second
End connection, when the second end of the extension rod upwardly extends, passing through the through-hole will be under damping hammer and the swing arm bar
End connection；
Wherein, which in the through hole can be free to slide.
The beneficial effects of the present invention are: the present invention has miniaturization, spy cheap, operation is simple, easy to maintain
Point can be monitored the direction of the horizontal component for the oscillation intensity and direction of earthquake source for monitoring position.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of the invention (containing outer cover).
Fig. 2 is a kind of schematic perspective view of the invention (being free of outer cover).
Fig. 3 is the longitudinal sectional view of Fig. 2.
Fig. 4 is computing unit and displacement sensor connecting structure for electrical equipment schematic diagram of the invention.
Fig. 5 is the schematic perspective view of bracket of the invention.
Fig. 6 is the longitudinal sectional view of Fig. 5.
Fig. 7 is another schematic perspective view of the invention (being free of outer cover).
Fig. 8 is the longitudinal sectional view of Fig. 7.
Fig. 9 is another schematic perspective view (being free of outer cover) of the invention.
Figure 10 is the longitudinal sectional view of Fig. 9.
Figure 11 is the 4th kind of schematic perspective view of the invention (being free of outer cover).
Figure 12 is the longitudinal sectional view of Figure 11.
Figure 13 is the 5th kind of schematic perspective view of the invention (being free of outer cover).
Figure 14 is the longitudinal sectional view of Figure 13.
Specific embodiment
For can the technical characteristic that the present invention will be described in detail and effect, and can be realized according to the content of this specification, below
Embodiments of the present invention are further illustrated in conjunction with attached drawing.
Unless stated otherwise, the terms " first ", " second ", " third ", " the 4th ", " the 5th " etc. do not represent suitable
Sequence does not also represent the importance for the term arranged in pairs or groups therewith.
In the present invention, monitoring position is the position that vibration monitor of the invention is placed；Focus is the place for causing vibration.
Direction of earthquake source is that the local direction for causing vibration is directed toward from monitoring position.
The embodiment that Fig. 1,2 illustrate one of the numerous embodiments of present invention vibration monitor.The vibration monitoring
Instrument includes bracket, swing arm, displacement sensor 8, computing unit 9, damping system, outer cover 23.
Together referring to Fig. 5,6, bracket plays a supportive role to swing arm, displacement sensor 8 etc. comprising pedestal 1, cross bar 2,
One, two upright bars 3,4 and cavity.Pedestal 1 is fixed in one end of first and second upright bar 3,4, and the other end upwardly extends.2 liang of cross bar
End is individually fixed in first and second upright bar 3,4.Cavity is set to cross bar 2.Pedestal 1, cross bar 2, can between the first and second upright bar 3,4
With but be not limited by screw and be fastened and fixed.
Specifically, cavity includes the first cavity 2-1, the second cavity 10-1.First cavity 2-1 is set to 2 top surface of cross bar,
Bottom has the first aperture 2-2.Second cavity 10-1 is set to fixed block 10, and fixed block 10, which is covered on first cavity 2-1, to be made
Cavity is collectively formed in first cavity 2-1 and the second cavity 10-1, and cavity is spherical preferable.It can be between fixed block 10 and cross bar 2
But it is not limited by screw to be fastened and fixed.
Swing arm includes swing arm ball 11, swing arm bar 5, counterweight 6 and extension rod 7.
Swing arm ball 11 is flexibly connected with bracket and can arbitrarily rotate.Specifically, swing arm ball 11 is movably set in the sky of bracket
It is intracavitary to be and arbitrarily rotate, so that swing arm is swung to lateral arbitrary orientation.The direction of the horizontal component of swing arm swaying direction is
Direction, that is, swing arm of the horizontal component of direction of earthquake source is used to indicate the direction of the horizontal component of direction of earthquake source, amplitude of fluctuation characterization
Monitor the oscillation intensity of position.It is preferable that swing arm ball 11 is adapted to activity cooperation with cavity.Frictional force between swing arm ball 11 and cavity
Smaller, direction of vibration monitoring accuracy is higher.Gap filling lubricant between swing arm ball 11 and cavity, for reducing swing arm ball 11
Frictional force between cavity.The upper end of swing arm bar 5 is fixedly connected with the swing arm ball 11.Swing arm bar 5 passes through first aperture simultaneously
It can be swung to lateral arbitrary orientation.Counterweight 6 is set to 5 lower end of swing arm bar.In this way, swing arm hangs on bracket, single pendulum is formed.
In Fig. 2, embodiment shown in 3, the first end of extension rod 7 is connect with the lower end of swing arm bar 5 and its second end is downward
Extend.
Swing arm ball 11, swing arm bar 7 are made of metal material preferably.Extension rod 7 is used to pass swing arm bar 5, counterweight 6, displacement
The displacement for the mechanism center of gravity that sensor 8 and extension rod 7 are constituted amplifies, that is, the oscillation intensity of 7 pairs of extension rod monitoring positions
It amplifies.Herein, mechanism center of gravity extension rod 7 constituted swing arm bar 5, counterweight 6, displacement sensor 8 and extension rod 7
Displacement equations multiple, referred to as the displacement equations multiple of extension rod 7.
Damping system has swung damping action to swing arm, with the kinetic energy of dissipation swing arm, the noise of vibration monitor is inhibited to believe
Number.If swing arm is the single pendulum being suspended on bracket withouyt damping system, if not having to after one vibration signal (momentum)
Have under the intervention of applied external force, vibration will unanimously continue, nonsensical to the real-time testing of vibration.If giving its lasting vibration
Dynamic signal receives interference signal when vibration signal is test, i.e. noise signal early period, will lead to monitoring signals and believed by noise
It number floods, monitoring result loses meaning.Therefore, for single pendulum, only know and vibration once occurred, the monitoring to vibration, especially
It is real-time monitoring, it is nonsensical.Together referring to fig. 2-14, during swing arm is swung, damping system provides one to swing arm
Inhibition power persistently hinders the movement of swing arm.The energy that damping system passes over swing arm is dissipated by own system,
Lasting energy consumption is realized to swing arm.If vibration monitor receives impulse oscillation signal, after swing arm is swung, acted in damping system
Under, swing slows down gradually, until stopping.If vibration monitor receives lasting vibration signal, noise signal is attenuated weakening,
Under noise filtering algorithm auxiliary, the real-time monitoring to vibration signal is completed.
Damping system will be described in detail hereinafter.
In order to obtain the numerical value of the numerical value for the oscillation intensity for monitoring position and the horizontal component direction of direction of earthquake source, the present invention
It is realized jointly using displacement sensor 8 and computing unit 9.
Displacement sensor 8 is set to the extension rod 7, is such as set to the second end end end of extension rod 7.Displacement sensor 8 is used
The displacement parameter that position when obtaining itself static relative to itself is swung.Displacement sensor 8 is by acquired displacement
Parameter transform be corresponding electric signal after export.
Together referring to fig. 4, computing unit 9 is with displacement sensor 8 by wirelessly or non-wirelessly connecting.Computing unit 9 is based on prolonging
Displacement equations multiple K, damping system parameter and the acquired displacement Parameters Calculation of stock 7 go out to monitor the oscillation intensity of position
The numerical value in the horizontal component direction of numerical value and direction of earthquake source.Specifically, displacement equations multiple of the computing unit 9 based on extension rod 7
K, the vibration that parameter calculates monitoring position by noise filtering algorithm is displaced acquired in damping system parameter and displacement sensor 8
The numerical value in the horizontal component direction of the numerical value and direction of earthquake source of fatigue resistance.The telecommunications that computing unit 9 is exported displacement sensor 8
Number corresponding displacement parameter is converted to, is then based on the corresponding displacement parameter, the displacement equations multiple K of extension rod 7 and damping
System parameter calculates the numerical value for the oscillation intensity for monitoring position and the horizontal component side of direction of earthquake source by noise filtering algorithm
To numerical value.Noise filtering algorithm can be, but not limited to as Kalman filtering algorithm.
Noise filtering algorithm concrete application are as follows: include the displacement of itself in the displacement parameter that displacement sensor 8 is got
The first derivative (speed, vector) of (vector), displacement, the second dervative (acceleration, vector) of displacement, three order derivatives being displaced
(vector), the physical parameters such as rotary inertia (vector).By the displacement equations multiple K of extension rod 7, damping system parameter and aforementioned institute
The physical parameter got substitutes into noise filtering algorithm and is handled, and filters the interference signals such as noise, directly calculating at-once monitor
The numerical value in the horizontal component direction of the numerical value and direction of earthquake source of the oscillation intensity of position.
Damping system parameter belongs to the parameter of vibration monitor itself.Damping is bigger, and noise suppression effect is better.But
It damps too big, it will reduce the vibration precision of vibration monitor；Damping is too small, and noise suppressed is not.Therefore, damping system parameter
It appropriate according to the actual situation should choose.
When the present invention receives single vibration signal, supporting band moves swing arm ball 11 and moves, and counterweight 6 does not have under effect of inertia
Displacement.Then, swing arm ball 11 drives swing arm bar 7, and then counterweight 6 is driven to move.Swing arm bar 5, extension rod 7, displacement sensor 8,
The center of gravity that counterweight 6 is combined, vibration displacement size are approximately equal to the displacement of monitoring position, 7 pairs of monitoring positions of extension rod
Oscillation intensity amplify.
When the present invention receives sustained vibration signal, supporting band moves swing arm ball 11 and moves, and counterweight 6 does not have under effect of inertia
Displacement.Then, swing arm ball 11 drives swing arm bar 7, and then counterweight 6 is driven to move.(swing arm bar 5 prolongs for displacement sensor 8 and swing arm
Stock 7, counterweight 6 and swing arm ball 11) swing after, i.e. acquisition kinetic energy is dissipated itself kinetic energy by damping system on one side, inhibition system
Noise receives the vibration signal of focus immediately on one side, obtains energy.Swing arm bar 5, extension rod 7, displacement sensor 8, counterweight 6 are closed
The accumulation kinetic energy of center of gravity together is greater than the kinetic energy of measurement position homogenous quantities object, i.e. its displacement will be greater than monitoring position
Displacement, at this point, vibration monitor monitoring accuracy of the invention is lower.If swing arm bar 5, extension rod 7, displacement sensor 8, counterweight
The vibration frequency resonance of the distance between 6 centers of gravity being combined and 11 centre of sphere of swing arm ball and measured position or object, swing arm bar
5, the center of gravity unit time accumulation kinetic energy that extension rod 7, displacement sensor 8, counterweight 6 are combined reaches maximum, at this point, this hair
Bright vibration monitor monitoring accuracy highest.If the center of gravity that swing arm bar 5, extension rod 7, displacement sensor 8, counterweight 6 are combined
The distance between 11 centre of sphere of swing arm ball much deviates the vibration frequency of measured position or object, swing arm bar 5, extension rod 7, displacement
The center of gravity unit time accumulation kinetic energy that sensor 8, counterweight 6 are combined reaches minimum, at this point, vibration monitor of the invention
It is only capable of monitoring the biggish vibration of oscillation intensity.The oscillation intensity for monitoring position therefore, it is necessary to 7 pairs of swing arm bar carries out level-one and puts
Greatly, 7 pairs of extension rod monitoring positions oscillation intensities carry out second level amplification, make as far as possible swing arm bar 5, extension rod 7, displacement sensor 8,
The vibration frequency resonance of the distance between center of gravity that counterweight 6 is combined and 11 centre of sphere of swing arm ball and focus.
Amplified displacement signal passes to the displacement sensor 8 for being installed on extension rod 7 or its end.Displacement sensor 8
During swing arm is vibrated and swung, the displacement of real-time monitoring itself obtains being put relative to itself position when static for itself
Dynamic displacement parameter, by the displacement parameter transform to be exported after corresponding electric signal, by electric signal transmission to computing unit 9.Meter
After calculation unit 9 converts electrical signals to corresponding displacement parameter, it is then based on the displacement of corresponding the displacement parameter, extension rod 7
Amplification factor K and damping system parameter calculate numerical value and the focus side for the oscillation intensity for monitoring position by noise filtering algorithm
To horizontal component direction numerical value.
In Fig. 2, embodiment shown in 3, displacement sensor 8, swing arm bar 5, extension rod 7, counterweight 6 and swing arm ball 11 are conllinear.
Similarly, displacement sensor 8, swing arm bar 5, extension rod 7, counterweight 6 and swing arm ball 11 be not conllinear or not exclusively collinearly also may be implemented
The purpose of the present invention.
Together referring to Fig. 7,8, for another schematic perspective view (being free of outer cover) of the invention.Fig. 7,8 and Fig. 2,3 institutes
The embodiment shown the difference is that: the first end of extension rod 7 is connect with the upper end of swing arm bar 5 and its second end upwardly extends,
Under this structure, the top of the second cavity 10-1 has the second aperture, and extension rod 7 passes through second aperture and can be any to transverse direction
Bearing oscillation；The structure of damping system is different, and the structure of damping system will be specifically described later.Displacement sensor
7 are also disposed on the second end end end of extension rod 7.In addition to this, Fig. 7,8 other are all the same with embodiment shown in Fig. 2,3.Figure
7, the oscillation intensity of structure shown in 8,7 pairs of extension rod monitoring positions amplifies.
Referring to fig. 2,3, Fig. 2, in embodiment shown in 3, damping system is magnetomechanical damping system, damping system parameter packet
Include coefficient of friction, damping card ring size, damping slot size, magnetic field size etc..The damping system includes dampening bracket, damping snap ring
12, magnet ring 13, magnetic part 14.
Dampening bracket is used to support damping snap ring 12, magnet ring 13, magnetic part 14 etc. comprising more support rods 15, every branch
The lower end of strut 15 is fixed by screw and pedestal, and the upper end is fixed by fixing screws and damping snap ring 12, thus will damping
Snap ring 12 is installed on the dampening bracket.
The ring inner wall of damping snap ring 12 has the damping slot circumferentially extended along ring inner wall.Counterweight 6 is located at the damping snap ring 13
Inner ring.Magnet ring 13 is set in the damping slot and can radially move back and forth.The insertion damping snap ring 12 of magnet ring 13 is preferable, with
Magnet ring 13 is prevented to be detached from, for example, 13 outer diameter of magnet ring is less than the external profile diameter of damping slot.It can be between magnet ring 13 and damping slot
Gap filling lubricant.
Magnetic part 14 is set to counterweight 6, and polarity is identical as 13 polarity of magnet ring.Or counterweight 6 is made of magnetic material,
Polarity is identical as 13 polarity of magnet ring.
When work, magnet ring 13 is moved, motion process, kinetic energy by 6 magneticaction of magnetic part 14 or counterweight in damping slot
By Friction dissipation, the dissipation of swing arm kinetic energy is realized, to inhibit noise of the invention.
On the basis of the embodiment shown in Fig. 2,3, magnetomechanical damping system is replaced into electrostatic damping system, damping system
Parameter of uniting includes coefficient of friction, damping card ring size, damping slot size, electrostatic field size etc..It is specific: by the magnetic part in counterweight 6
14 are replaced into the electrostatic components made of electrostatic material or are made of electrostatic material, and magnet ring 13 is replaced into made of electrostatic material
The charge of electrostatic ring, electrostatic ring and electrostatic components or counterweight 6 is homophilic charge, between can generate electrostatic force repulsive force.Except this
Except, other are identical as embodiment shown in Fig. 2,3.
Referring in embodiment shown in Fig. 9,10, Fig. 9,10, damping system is elastic damping system, damping system parameter
Including coefficient of friction, the spring coefficient of stiffiness, damping card ring size, damping slot size, etc..The damping system include dampening bracket,
Damp snap ring 12, inner ring 16, outer ring 17, elastic component 18.
Dampening bracket is used to support damping snap ring 12, inner ring 16, elastic component 18 etc., including more support rods 15, every branch
The lower end of strut 15 is fixed by screw and pedestal, and the upper end is fixed by fixing screws and damping snap ring 12, thus will damping
Snap ring 12 is installed on the dampening bracket.
The ring inner wall of damping snap ring 12 has the damping slot circumferentially extended along ring inner wall.Inner ring 16 is set in the damping slot
And it can radially move back and forth.
Outer ring 17 is set in 5 outer wall of swing arm bar, and in this case, swing arm bar 5 is located in 12 inner ring of damping snap ring preferably.
It is understood that outer ring 17 can also be set in 7 outer wall of counterweight 6 or extension rod, in this case, counterweight 6 or extension rod 7 are right
It should be located in the damping snap ring inner ring.
One end of elastic component 18 is connect with the outer ring 17, and the other end is connect with the inner ring 16.Fig. 9, implement shown in 10
In example, elastic component 18 is tension spring.
Figure 11,12 and Fig. 9, embodiment shown in 10 the difference is that: in Figure 11, embodiment shown in 12, elastic component
18 be rubber band.In addition to this, other are identical as embodiment shown in Fig. 9,10.
Except above-mentioned points, elastic component 18 can also be other elastomeric elements, such as spring band etc..
Above-mentioned elastic component 18 is uniformly distributed preferable in damping 12 inner circumferential of snap ring.
Elastic force between above-mentioned inner ring 16 and outer ring 17 is drawing force.Inner ring 16 is passed to elasticity by counterweight 6
The drawing force of part 18, moves in damping slot, motion process, and kinetic energy realizes the consumption of swing arm kinetic energy by Friction dissipation
It dissipates, to inhibit noise of the invention.
Together referring to embodiment shown in Fig. 7,8,13,14, Figure 13,14 and Fig. 2,3 the difference is that: Figure 13,14 institutes
The damping system for the embodiment shown is viscous damping system, and damping system parameter includes damping hammer size, the viscous system of viscous liquid
Number etc..In addition to this, other are identical as embodiment shown in Fig. 2,3.In Figure 13, embodiment shown in 14, when extension rod 7
Second end extends downwardly, and the damping system of the embodiment includes that liquid fills 19, viscous liquid 20, damping hammer 21, flexible wires 22.
Liquid fills 19 and is fixed on pedestal 1, and is set to 5 lower section of swing arm bar, has the through-hole being connected to tank internal cavity.Through-hole
It is filled above 19 preferably positioned at liquid.
Viscous liquid 20 fills in 19 loaded on the liquid.Damping hammer 21 immerses the viscous liquid 20；Flexible wires 22 are logical by liquid filling 19
Damping hammer 21 is connect by hole with the second end of extension rod 7.Viscous liquid 20 can be, but not limited to as lubricating oil, edible vegetable oil etc..
It is preferable again for (1.1~3.0) to damp the ratio between hammer 21 and density of viscous liquid 20.Damping hammer 21 is close with viscous liquid 20
It spends ratio to reduce, the present invention inhibits the ability of noise that will weaken.Damping hammer 21 and the density ratio of viscous liquid 20 increase, and can weaken
Swing arm bar 5,7 pairs of the extension rod displacement signal amplifying powers vibrated.
Fig. 7,8 and Figure 13, embodiment shown in 14 the difference is that: the second end of extension rod 7 upwardly extends i.e. above-mentioned
The first end of extension rod 7 connect with the upper end of swing arm bar 5 and its second end upwardly extends, under this structure, flexible wires 22 are logical
Damping hammer 21 is connect by the through-hole for crossing liquid filling 19 with the lower end of swing arm bar 7, and flexible wires 22 can be free to slide in through-hole.Except this
Except, other are identical as embodiment shown in Figure 13,14.
When work, the active force that damping hammer 21 is passed over by counterweight 6, band dynamic damping hammer 21 moves in viscous liquid,
Motion process, there are solid-liquid surface friction force between damping hammer 21 and viscous liquid 20, the kinetic energy of damping hammer 21 dissipates quickly
In viscous liquid 20, the dissipation of swing arm kinetic energy is realized, to inhibit noise of the invention.
In the present invention, swing arm bar 5 is longer, and oscillation intensity monitoring accuracy is higher.When tested vibration and swing arm resonance, vibration
The monitoring accuracy of dynamic monitor is increased sharply.When carrying out the selection of 5 length of swing arm bar, need to pay the utmost attention to monitoring vibration frequency, it is simultaneous
Care for Miniaturization Design.Counterweight 6 is heavier, and the mechanism center of gravity that swing arm bar 5, counterweight 6, displacement sensor 8 and extension rod 7 are constituted is lower,
More be conducive to reduce the influence of the factors to monitoring result such as frictional force, 5 own wt of swing arm bar at rotation connection position.Extension rod
7 are made preferably of light material (such as wood, bamboo, high molecular material, hollow pipe etc.).Extension rod 7 is being put with swing arm bar 5
Arm ball is ipsilateral (or heteropleural), amplifies for the oscillation intensity to monitoring position, for example, the displacement equations of extension rod 7 times
Number is K, and the distance of displacement sensor 8 to 11 centre of sphere of swing arm ball is L, and swing arm bar 5, extension rod 7, displacement sensor 8, counterweight 6 are closed
The distance of center of gravity together to 11 centre of sphere of swing arm ball is L0, then displacement equations multiple K=L/L0。
Outer cover 23 is substantially in tubular structure closed at one end, and unclosed end is towards being covered on pedestal 1, by cross bar 2, the
One, the core components such as two upright bars 3,4, swing arm bar 5, counterweight 6, extension rod 7, displacement sensor 8, which are included in it, is protected.Work as meter
When calculating unit 9 and displacement sensor 8 and passing through wireless connection, outer cover 23 using will not the material of shielded radio frequency signal be made.Work as meter
When calculating unit 9 and displacement sensor 8 and passing through wired connection, one can be made with displacement sensor 8 in computing unit 9, can also be with
Connected by flexible light weight communication line, etc..
It should be noted that each particular technique feature described in above-mentioned specific embodiment, in reconcilable feelings
Under condition, it can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention is to various possible groups
Conjunction mode is not described.
Above with reference to embodiment to the present invention have been described in detail, be it is illustrative rather than restrictive, do not taking off
It is within the scope of the present invention from the change and modification under present general inventive concept.
Claims (10)
1. a kind of vibration monitor, comprising:
Bracket；
Swing arm comprising be flexibly connected with the bracket and energy swing arm ball freely rotated, upper end are fixedly connected with the swing arm ball
Swing arm bar, the counterweight for being set to the swing arm bar lower end and first end is connect with the lower end of the swing arm bar and second end extends downwardly
Or the extension rod that first end is connect with the upper end of the swing arm bar and second end upwardly extends；
Damping system has swung damping action to the swing arm；
Wherein, the swing arm can be swung to lateral arbitrary orientation, and the oscillation intensity of amplitude of fluctuation characterization monitoring position is swung
The direction of the horizontal component in the directional force seismic source direction of the horizontal component in direction.
2. vibration monitor according to claim 1, which is characterized in that further include:
Displacement sensor is set to the extension rod, is used to obtain being put relative to itself position when static for itself
Dynamic displacement parameter；
Computing unit, displacement equations multiple K, damping system parameter and acquired displacement Parameters Calculation based on the extension rod
The numerical value of the numerical value of the oscillation intensity of position and the horizontal component direction of direction of earthquake source is monitored out；
Wherein, the distance of institute's displacement sensors to the swing arm ball centre of sphere is L, the swing arm bar, extension rod, displacement sensing
Device, the distance with the center of gravity to coincide together to the swing arm ball centre of sphere are L0, then K=L/L0。
3. vibration monitor according to claim 2, which is characterized in that displacement of the computing unit based on the extension rod
Amplification factor K, damping system parameter and acquired displacement Parameters Calculation go out to monitor the numerical value and focus of the oscillation intensity of position
The algorithm of the numerical value in the horizontal component direction in direction is noise filtering algorithm.
4. vibration monitor according to claim 3, which is characterized in that the noise filtering algorithm is Kalman filtering calculation
Method.
5. vibration monitor according to claim 1, which is characterized in that the bracket includes that this is fixed in pedestal, one end
The first upright bar and the second upright bar, both ends that the pedestal other end upwardly extends are individually fixed in the cross of first upright bar and the second upright bar
Bar and the cavity for being set to the cross bar, the swing arm ball are movably set in the cavity.
6. vibration monitor according to claim 5, which is characterized in that the cavity:
First cavity, is set to the cross bar top surface, and bottom has the first aperture；
Second cavity, is set to fixed block, which, which is covered on first cavity, keeps the first cavity and the second cavity common
Form the cavity；
Wherein, when the second end of the extension rod extends downwardly, the swing arm bar passes through first aperture and can appoint to lateral
Meaning bearing oscillation；When the second end of the extension rod upwardly extends, the top of second cavity has the second aperture, described to prolong
Stock passes through second aperture and can swing to lateral arbitrary orientation.
7. vibration monitor according to claim 1-6, which is characterized in that the damping system includes:
Dampening bracket；
Snap ring is damped, the dampening bracket is installed on, ring inner wall has the damping slot circumferentially extended along ring inner wall；
Magnet ring is set in the damping slot and can radially move back and forth；
Magnetic part, is set to the counterweight, and polarity is identical as the magnet ring polarity；It is reconstructed into alternatively, the magnetic part is matched by this, the counterweight
It is made of polarity magnetic material identical with the magnet ring polarity；
Alternatively,
The damping system includes:
Dampening bracket；
Snap ring is damped, the dampening bracket is installed on, ring inner wall has the damping slot circumferentially extended along ring inner wall；
Electrostatic ring is set in the damping slot and can radially move back and forth；
Electrostatic part is set to the counterweight, and the charge of charge and the electrostatic ring is homophilic charge；Alternatively, the electrostatic part by
It should be with being reconstructed into, which is made of charge electrostatic material identical with the charge of the electrostatic ring；
Wherein, which is located in the damping snap ring inner ring.
8. vibration monitor according to claim 1-6, which is characterized in that the damping system includes:
Dampening bracket；
Snap ring is damped, the dampening bracket is installed on, ring inner wall has the damping slot circumferentially extended along ring inner wall；
Inner ring is set in the damping slot and can radially move back and forth；
Outer ring is set in the swing arm bar, counterweight or extension rod outer wall；
Elastic component, one end are connect with the outer ring, and the other end is connect with the inner ring；
Wherein, which is located in the damping snap ring inner ring.
9. vibration monitor according to claim 8, which is characterized in that the elastic component is spring band, tension spring or rubber
Muscle.
10. vibration monitor according to claim 1-6, which is characterized in that the damping system includes:
Liquid fills, and is set to below the swing arm bar, has the through-hole being connected to tank internal cavity；
Viscous liquid, loaded in liquid filling；
Damping hammer, immerses the viscous liquid；
Flexible wires pass through the through-hole and connect damping hammer with the second end when the second end of the extension rod extends downwardly
It connects, when the second end of the extension rod upwardly extends, passes through the through-hole and connect damping hammer and the lower end of the swing arm bar
It connects；
Wherein, which in the through hole can be free to slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137198.0A CN109612566B (en) | 2019-02-25 | 2019-02-25 | Vibration monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137198.0A CN109612566B (en) | 2019-02-25 | 2019-02-25 | Vibration monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109612566A true CN109612566A (en) | 2019-04-12 |
| CN109612566B CN109612566B (en) | 2024-04-09 |
Family
ID=66022248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910137198.0A Active CN109612566B (en) | 2019-02-25 | 2019-02-25 | Vibration monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109612566B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111368459A (en) * | 2020-03-25 | 2020-07-03 | 河北振创电子科技有限公司 | Vibration fatigue evaluation method and device for wind power generation supporting tower, medium and terminal |
| CN113240993A (en) * | 2021-05-11 | 2021-08-10 | 中国地震局工程力学研究所 | Seismic acceleration response spectrum display model and operation method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990039A (en) * | 1975-04-07 | 1976-11-02 | Miller Larry D | Tuned ground motion detector utilizing principles of mechanical resonance |
| JPH02181615A (en) * | 1988-12-30 | 1990-07-16 | Omron Tateisi Electron Co | Seismoscope |
| CN2089636U (en) * | 1991-02-02 | 1991-11-27 | 孙旻 | Simple earthquake alarm |
| JPH0829246A (en) * | 1994-07-12 | 1996-02-02 | Kitagawa Ind Co Ltd | Vibration detection device |
| US20020189360A1 (en) * | 2000-11-22 | 2002-12-19 | Shuichi Kawasaki | Vibration absorbing system of micro gravity rotating apparatus |
| TWM277932U (en) * | 2005-05-20 | 2005-10-11 | Chuan-Wang Chang | Simple seismograph structure |
| CN1811338A (en) * | 2005-01-24 | 2006-08-02 | 精工爱普生株式会社 | Vibrating gyro element, support structure of vibrating gyro element, and gyro sensor |
| JP2013104840A (en) * | 2011-11-16 | 2013-05-30 | Mitsubishi Heavy Ind Ltd | Structure vibration measuring instrument |
| CN103762888A (en) * | 2013-12-31 | 2014-04-30 | 杭州电子科技大学 | Lever-type giant magnetostriction vibration energy collecting device |
| CN103969692A (en) * | 2014-05-21 | 2014-08-06 | 哈尔滨工程大学 | Two-dimensional composite pendulum crustal inclination low-frequency vibration isolation device based on capacitive sensing |
| CN107060125A (en) * | 2017-03-22 | 2017-08-18 | 东南大学 | A kind of tuned mass damper device |
| CN108168685A (en) * | 2017-12-27 | 2018-06-15 | 燕山大学 | External drive vibration detection device and detection method |
| JP2018146572A (en) * | 2017-03-08 | 2018-09-20 | 有限会社生物振動研究所 | Viscoelasticity measuring apparatus |
| CN209570264U (en) * | 2019-02-25 | 2019-11-01 | 电子科技大学 | A kind of vibration monitor |
-
2019
- 2019-02-25 CN CN201910137198.0A patent/CN109612566B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990039A (en) * | 1975-04-07 | 1976-11-02 | Miller Larry D | Tuned ground motion detector utilizing principles of mechanical resonance |
| JPH02181615A (en) * | 1988-12-30 | 1990-07-16 | Omron Tateisi Electron Co | Seismoscope |
| CN2089636U (en) * | 1991-02-02 | 1991-11-27 | 孙旻 | Simple earthquake alarm |
| JPH0829246A (en) * | 1994-07-12 | 1996-02-02 | Kitagawa Ind Co Ltd | Vibration detection device |
| US20020189360A1 (en) * | 2000-11-22 | 2002-12-19 | Shuichi Kawasaki | Vibration absorbing system of micro gravity rotating apparatus |
| CN1811338A (en) * | 2005-01-24 | 2006-08-02 | 精工爱普生株式会社 | Vibrating gyro element, support structure of vibrating gyro element, and gyro sensor |
| TWM277932U (en) * | 2005-05-20 | 2005-10-11 | Chuan-Wang Chang | Simple seismograph structure |
| JP2013104840A (en) * | 2011-11-16 | 2013-05-30 | Mitsubishi Heavy Ind Ltd | Structure vibration measuring instrument |
| CN103762888A (en) * | 2013-12-31 | 2014-04-30 | 杭州电子科技大学 | Lever-type giant magnetostriction vibration energy collecting device |
| CN103969692A (en) * | 2014-05-21 | 2014-08-06 | 哈尔滨工程大学 | Two-dimensional composite pendulum crustal inclination low-frequency vibration isolation device based on capacitive sensing |
| JP2018146572A (en) * | 2017-03-08 | 2018-09-20 | 有限会社生物振動研究所 | Viscoelasticity measuring apparatus |
| CN107060125A (en) * | 2017-03-22 | 2017-08-18 | 东南大学 | A kind of tuned mass damper device |
| CN108168685A (en) * | 2017-12-27 | 2018-06-15 | 燕山大学 | External drive vibration detection device and detection method |
| CN209570264U (en) * | 2019-02-25 | 2019-11-01 | 电子科技大学 | A kind of vibration monitor |
Non-Patent Citations (1)
| Title |
|---|
| 许生慧 等: "受迫振动阻尼复摆实验仪", 《物理实验》, vol. 36, no. 10, pages 11 - 14 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111368459A (en) * | 2020-03-25 | 2020-07-03 | 河北振创电子科技有限公司 | Vibration fatigue evaluation method and device for wind power generation supporting tower, medium and terminal |
| CN111368459B (en) * | 2020-03-25 | 2023-08-01 | 河北振创电子科技有限公司 | Wind power generation support tower cylinder vibration fatigue evaluation method, device, medium and terminal |
| CN113240993A (en) * | 2021-05-11 | 2021-08-10 | 中国地震局工程力学研究所 | Seismic acceleration response spectrum display model and operation method |
| CN113240993B (en) * | 2021-05-11 | 2022-08-02 | 中国地震局工程力学研究所 | Seismic acceleration response spectrum display model and operation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109612566B (en) | 2024-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109612566A (en) | A kind of vibration monitor | |
| CA2734242C (en) | High-resolution digital seismic and gravity sensor and method | |
| CN209570264U (en) | A kind of vibration monitor | |
| US7252001B2 (en) | Three axis active magnetic levitation for inertial sensing systems | |
| EP0100785A1 (en) | High-performance vibration filter | |
| CN107329184A (en) | Axial symmetry elastic system and gravimeter | |
| Casciati et al. | Cable vibration mitigation by added SMA wires | |
| CN202631100U (en) | Ultralow frequency absolute vibrating sensor amplitude-frequency characteristic compensating circuit | |
| CN109556811A (en) | A kind of big rigidity mouse cage Static stiffness test device and test method | |
| CN209432271U (en) | A kind of self-stabilization damping vibration monitor | |
| CN106066244A (en) | A kind of large inertia torsional flexibility load simulating device | |
| CN106908096B (en) | Ultralow frequency simple harmonic oscillation displacement and stretch bending composite strain comprehensive test device | |
| CN109612567A (en) | A kind of self-stabilization damping vibration monitor | |
| RU130705U1 (en) | DEVICE FOR MEASURING ABSOLUTE VIBRATIONS | |
| CN1142534C (en) | Multifunctional theoretical mechanics experiment stage | |
| CN108562934A (en) | A kind of rotation seismometer | |
| US4158956A (en) | Waverider buoy accelerometer calibration testing device | |
| Lorrain | Low natural frequency vibration isolator or seismograph | |
| WO1999012056A1 (en) | Apparatus for reducing rotation of an article | |
| CN113533767A (en) | Passive acceleration sensor stabilizing device and measuring method | |
| CN207964873U (en) | A kind of simple spring suspension for atomic force microscope | |
| CN105487108A (en) | Low-natural frequency stable inverted pendulum column structure | |
| CN207908022U (en) | A kind of physics facility | |
| Ahmed et al. | Smartphones-based in educational practice works: a case study of mechanical vibration practical works | |
| Melton et al. | Inertial seismograph design-Limitations in principle and practice (or how not to build a sensitive seismograph) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| 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 |