CN103821835B - A kind of controlled random variation rigidity bellows coupling and method - Google Patents
A kind of controlled random variation rigidity bellows coupling and method Download PDFInfo
- Publication number
- CN103821835B CN103821835B CN201410066350.8A CN201410066350A CN103821835B CN 103821835 B CN103821835 B CN 103821835B CN 201410066350 A CN201410066350 A CN 201410066350A CN 103821835 B CN103821835 B CN 103821835B
- Authority
- CN
- China
- Prior art keywords
- random
- solenoid
- corrugated tube
- current
- generating means
- 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.)
- Expired - Fee Related
Links
- 230000001808 coupling Effects 0.000 title claims abstract description 45
- 238000010168 coupling process Methods 0.000 title claims abstract description 45
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 45
- 238000000518 rheometry Methods 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 210000001215 Vagina Anatomy 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims 1
- 210000000988 Bone and Bones Anatomy 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000002349 favourable Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Abstract
The invention discloses a kind of controlled random variation rigidity bellows coupling and method, the left and right end rotating shaft of rotating machinery is connected in two stomidiums of corrugated tube (5), magnetic rheology elastic body (7) it is full of in described corrugated tube (5), electromagnet core (2) is fixed in the annular snare supporting seat (1), two coil racks (4) are set on electromagnet core (2) symmetrical above and belowly, two solenoids are respectively wound around on two coil racks (4) that upper and lower vertical direction is symmetrical, certain gap is kept between corrugated tube (5) and solenoid (3), random current generating means and DC current generating means all electrically connect with solenoid (3).Apparatus and method of the present invention can change randomly and acts on the elastic modelling quantity of magnetic rheology elastic body in corrugated tube, such that it is able to change the rigidity of bellows coupling randomly.
Description
Technical field
The invention belongs to a kind of random variation rigidity field, be specifically related to a kind of can controlled random variation rigidity bellows coupling with
And the method changing bellows coupling rigidity.
Background technology
Shaft coupling is mainly used in the connection in machine driving, is the vitals of all kinds of rotating machinery.In rotating machinery, shaft coupling
Device not only acts as each rotor of connection, transmission moment of torsion and compensates axial, the angular and effect of radial displacement, and to whole rotor system
Dynamics, running accuracy and the stability etc. of system suffer from important impact.Accordingly, it would be desirable to research shaft coupling is to whirler
The impact of tool system dynamics.But if it is intended to the impact that experimentation shaft coupling is on rotatory mechanical system dynamics,
Must process a large amount of shaft coupling, this is in the time and be the most all unallowed.It is thus desirable to by means of the shaft coupling of a kind of variation rigidity
Device.
Through finding prior art literature retrieval, Chinese Patent Application No. is " a kind of variation rigidity corrugated tube shaft coupling of CN1456824A
Device ", it is primarily used to that many rotors are coupled system and carries out stability control, eliminate the judder that each rotor oscillation superposition causes,
The requirement that rotatory mechanical system dynamics is affected by experimentation shaft coupling can not be met.
Summary of the invention
It is an object of the invention to develop one can the bellows coupling of variation rigidity at random, replace experimentation needs processed
Many parts, reduce experimental cost with this and shorten research cycle.
The present invention is achieved through the following technical solutions, a kind of controlled random variation rigidity bellows coupling, including support seat 1,
Electromagnet core 2, solenoid 3, coil rack 4, corrugated tube 5, the left and right end rotating shaft of rotating machinery, magnetorheological elasticity
Body 7, random current generating means, DC current generating means, the left and right end rotating shaft of rotating machinery is connected to described ripple
In two stomidiums of stricture of vagina pipe, being full of magnetic rheology elastic body 7 in described corrugated tube 5, described electromagnet core is fixed on the ring supporting seat
In shape snare, described coil rack is two the coil bones being positioned at the annular snare supporting seat that upper and lower vertical direction is symmetrical
Frame, two coil racks are set on electromagnet core symmetrical above and belowly, and described solenoid includes that upper and lower vertical direction symmetry is divided
The solenoid of two differential connections of cloth, and be respectively wound around on two coil racks that upper and lower vertical direction is symmetrical, institute
State the gap keeping certain between corrugated tube and solenoid, random current generating means and DC current generating means all with electric
Magnetic coil electrically connects.
Further, described random current generating means includes computer, analog output unit, power amplifier, produces random
Number described computer, random number is converted into the described analog output unit of analog quantity and analog quantity is converted into required size
Experiment electric current power amplifier between be electrically connected to each other and differential with solenoid electrically connect.
Further, described DC current generating means is that an accurate digital control producing DC current electrically connected with solenoid is permanent
Stream source.
Further, the left and right end rotating shaft of rotating machinery is coupled by clamped-in style or is connected to described by the way of expansion sleeve type connection
In two stomidiums of corrugated tube.
Further, the left and right end rotating shaft of rotating machinery by location screw or bonded connects at the two of described corrugated tube
In stomidium.
The invention also discloses a kind of method changing bellows coupling rigidity, include bellows coupling as above,
Produce random number by computer, by analog output unit, random number is converted into analog output, then passes through power amplifier
Convert thereof into the experiment random current of required size, and differential with solenoid electrically connect；
The bias current that experiment random current and accurate digital control constant-current source produce is transferred to solenoid, changes randomly and act on
The elastic modelling quantity of magnetic rheology elastic body in the magnetic field intensity of magnetic rheology elastic body in corrugated tube, and then change corrugated tube, thus at random
Ground changes the rigidity of bellows coupling.
Further, by two symmetrical for upper and lower vertical direction electromagnet coil Electricity Federations together to ensure in electromagnet coil
It is passed through the experiment random current of identical DC bias current and reversing differential.
The solution have the advantages that: by changing the electric current of solenoid, i.e. adjustable electromagnetic field intensity E size, thus change
In change bellows coupling, the elastic modelling quantity of magnetic rheology elastic body, makes the torsional rigidity of bellows coupling and bending stiffness be adjusted
Whole.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the operating diagram of the present invention.
Wherein: 1 is bearing, 2 is electromagnet core, and 3 is solenoid, and 4 is coil rack, and 5 is corrugated tube, and 6 for rotating
Machinery right-hand member rotating shaft, 7 be magnetic rheology elastic body, 8 for position screw, 9 is power amplifier, 10 be analog output unit,
11 is computer, and 12 is DC current source, and 13 is alignment pin, and 14 is the left end rotating shaft of rotating machinery.
Detailed description of the invention
In bellows coupling, corrugated tube is subject to the critical piece of moment of torsion.By being filled with magnetic rheology elastic body in corrugated tube, right
Bellows coupling carries out variable rigidity control.
Embodiment 1
A kind of controlled random variation rigidity bellows coupling, including supporting seat 1, electromagnet core 2, solenoid 3, coil bone
Frame 4, corrugated tube 5, rotating shaft 6 and 14, magnetic rheology elastic body 7, random current generating means, DC current generating means, rotation
The rotating shaft 6 and 14 of favourable turn tool is connected in two stomidiums of described corrugated tube 5, is full of magnetorheological elasticity in described corrugated tube 5
Body 7, described electromagnet core 2 is fixed in the annular snare supporting seat 1, and described coil rack 4 is upper and lower vertical direction pair
Claiming two coil racks 4 of annular snare supporting seat 1 that are positioned at of distribution, two coil racks 4 are laterally zygomorphic to be set in
On electromagnet core 2, described solenoid 3 is the solenoid of symmetrical two the mutual differential connections of upper and lower vertical direction,
And be respectively wound around on two coil racks 4 that upper and lower vertical direction is symmetrical, between described corrugated tube 5 and solenoid 3
Certain gap, random current generating means and DC current generating means is kept all to electrically connect with solenoid 3.
Further, bellows coupling 5 two ends of magnetic rheology elastic body it are filled with rotating shaft 6 and 14 respectively by location screw 8
Fastening.
Embodiment 2
A kind of controlled random variation rigidity bellows coupling, including supporting seat 1, electromagnet core 2, solenoid 3, coil bone
Frame 4, corrugated tube 5, rotating shaft 6 and 14, magnetic rheology elastic body 7, random current generating means, DC current generating means, rotation
The rotating shaft 6 and 14 of favourable turn tool is connected in two stomidiums of described corrugated tube 5, is full of magnetorheological elasticity in described corrugated tube 5
Body 7, described electromagnet core 2 is fixed in the annular snare supporting seat 1, and described coil rack 4 is upper and lower vertical direction pair
Claiming two coil racks 4 of annular snare supporting seat 1 that are positioned at of distribution, two coil racks 4 are laterally zygomorphic to be set in
On electromagnet core 2, described solenoid 3 is the solenoid of symmetrical two the mutual differential connections of upper and lower vertical direction,
And be respectively wound around on two coil racks 4 that upper and lower vertical direction is symmetrical, between described corrugated tube 5 and solenoid 3
Certain gap, random current generating means and DC current generating means is kept all to electrically connect with solenoid 3.
Electromagnet core 2 is put into the annular snare supporting seat 1, makes the side of iron core 2 and the one end supporting seat 1 closely tie
Close, be fastened to support on seat 1 by electromagnet core 2 by alignment pin.
Electromagnet coil 3 is wrapped on coil rack 4, is then sleeved on electromagnet core 2.By coil rack 4
Closely cooperate with iron core 2, make coil rack 4 be secured firmly on iron core 2.
Embodiment 3
A kind of method changing bellows coupling rigidity, includes bellows coupling as above, first, by calculating
Machine 11 produces random number, by analog output unit 10, random number is converted into analog output, then by power amplifier 9
Convert thereof into the experiment random current of required size, and differential with solenoid electrically connect；Then, will experiment random current with
The bias current that accurate digital control constant-current source 12 produces is transferred to solenoid 3, changes in acting on corrugated tube 5 magnetorheological randomly
The elastic modelling quantity of magnetic rheology elastic body 7 in the magnetic field intensity of elastomer 7, and then change corrugated tube 5, thus change ripple randomly
The rigidity of stricture of vagina pipe shaft coupling.
In order to ensure electromagnet coil is passed through the experiment random current of identical DC bias current and reversing differential, by upper sagging
Nogata is to two symmetrical electromagnet coil Electricity Federations together.
Embodiment 4
A kind of method changing bellows coupling rigidity, produces bias current to solenoid 3 by accurate digital control constant-current source 12,
The springform of magnetic rheology elastic body 7 in the magnetic field intensity of magnetic rheology elastic body 7, and then change corrugated tube 5 in change corrugated tube 5
Amount, thus change the rigidity of bellows coupling 5.Random number is produced by matlab statistics toolbox in computer 11,
Random number as signal source, is converted into analog output by analog output unit 10, then is put by power by the random number produced
Big device 9 converts thereof into the experiment random current of required size, and differential with solenoid electrically connects；Then, by random for experiment
Electric current is transferred to solenoid 3, the magnetic field intensity of magnetic rheology elastic body 7, Jin Ergai in change acts on corrugated tube 5 randomly
The elastic modelling quantity of magnetic rheology elastic body 7 in change corrugated tube 5, such that it is able to change the rigidity of bellows coupling randomly.
Actual effect and the meaning of the present invention are: simple in construction, easy to use, by changing the electric current of solenoid,
Adjustment electromagnetic field intensity E size, thus the elastic modelling quantity of magnetic rheology elastic body in changing bellows coupling, make corrugated tube shaft coupling
Torsional rigidity and the bending stiffness of device are adjusted.
This invention may be used for solving the rotor dynamics problem about random parameter, and experimentation shaft coupling is to rotor
The impact of system dynamics performance.Owing to process of experimental needing processed many parts, by random variation rigidity corrugated tube
Shaft coupling replaces common shaft coupling, is possible not only to reduce experimental cost, and shortens research cycle.Additionally, it can also be used
In to the reliability of the rotating machineries such as various hydraulic generators, Turbo-generator Set, super-magnum centrifuge, compressor and stable
Property analyze, improve rotating machinery run efficiency, economic benefit and safety.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technical staff of the industry should
This understanding, the present invention is not restricted to the described embodiments, and the simply explanation present invention's described in above-described embodiment and description is former
Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (5)
1. a controlled random variation rigidity bellows coupling, including support seat, electromagnet core, solenoid, coil rack,
Corrugated tube, the left and right end rotating shaft of rotating machinery, magnetic rheology elastic body, random current generating means, DC current generating means,
It is characterized in that: the left and right end rotating shaft of rotating machinery is connected in two stomidiums of described corrugated tube, fills in described corrugated tube
Full magnetic rheology elastic body, described electromagnet core is fixed in the annular snare supporting seat, and described coil rack is the most vertical
What direction was symmetrical is positioned at two coil racks of the annular snare supporting seat, and two coil racks are symmetrical above and belowly sheathed
On electromagnet core, described solenoid includes the solenoid of symmetrical two the differential connections of upper and lower vertical direction,
And be respectively wound around on two coil racks that upper and lower vertical direction is symmetrical, keep between described corrugated tube and solenoid
Certain gap, random current generating means and DC current generating means all electrically connect with solenoid；Described is controlled
Random variation rigidity bellows coupling, it is characterised in that: described random current generating means includes computer, analog output
Card, power amplifier, produce random number described computer, random number is converted into the described analog output unit of analog quantity with
And be electrically connected to each other and differential with solenoid between the power amplifier of the experiment electric current that analog quantity is converted into required size
Electrical connection；Described controlled random variation rigidity bellows coupling, it is characterised in that: described DC current generating means be one with
The accurate digital control constant-current source producing DC current of solenoid electrical connection.
Controlled random variation rigidity bellows coupling the most as described in claim 1, it is characterised in that: the left side of rotating machinery,
Right-hand member rotating shaft is coupled by clamped-in style or is connected in two stomidiums of described corrugated tube by the way of expansion sleeve type connection.
Controlled random variation rigidity bellows coupling the most as described in claim 1, it is characterised in that: the left side of rotating machinery,
Right-hand member rotating shaft is by location screw or bonded connects in two stomidiums of described corrugated tube.
4. a method for random change bellows coupling rigidity, including just like the ripple described in any one of claim 1-3
Pipe shaft coupling, it is characterised in that: produce random number by computer, by analog output unit, random number is converted into analog quantity
Output, then converted thereof into the experiment random current of required size by power amplifier, and differential with solenoid electrically connect；
The bias current that experiment random current and accurate digital control constant-current source produce is transferred to solenoid, changes randomly and act on ripple
The elastic modelling quantity of magnetic rheology elastic body in the magnetic field intensity of magnetic rheology elastic body in stricture of vagina pipe, and then change corrugated tube, thus at random
Ground changes the rigidity of bellows coupling.
5. method as described in claim 4, it is characterised in that: by two symmetrical for upper and lower vertical direction electromagnetism iron wires
Circle Electricity Federation is together to ensure to be passed through in electromagnet coil the experiment random current of identical DC bias current and reversing differential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066350.8A CN103821835B (en) | 2014-02-26 | A kind of controlled random variation rigidity bellows coupling and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066350.8A CN103821835B (en) | 2014-02-26 | A kind of controlled random variation rigidity bellows coupling and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103821835A CN103821835A (en) | 2014-05-28 |
| CN103821835B true CN103821835B (en) | 2016-11-30 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Schneider et al. | Design and evaluation of a 60 000 rpm permanent magnet bearingless high speed motor | |
| Liang et al. | Design and analysis of a tubular linear oscillating motor for directly-driven EHA pump | |
| Li et al. | Performance comparison of electromagnetic generators based on different circular magnet arrangements | |
| Zad et al. | Design and analysis of a novel bearingless motor for a miniature axial flow blood pump | |
| CN102368657B (en) | Bearingless brushless direct current motor and control method thereof | |
| CN105070179B (en) | Electric linear load simulator | |
| CN203784125U (en) | Controllable random variable-rigidity corrugated pipe coupler | |
| CN105840727B (en) | A kind of adjustable rigidity mechanism of axial magnetic coupling | |
| Ren et al. | Development and modeling of an electromagnetic energy harvester from pressure fluctuations | |
| Gerlach et al. | Mechanical stress and deformation in the rotors of a high-speed PMSM and IM= Mechanischer Stress und Verformung in den Rotoren einer Hochdrehzahl-PMSM und einer Hochdrehzahl-IM | |
| CN103821835B (en) | A kind of controlled random variation rigidity bellows coupling and method | |
| Na | Design and analysis of a new permanent magnet biased integrated radial-axial magnetic bearing | |
| Kascak et al. | Motoring performance of a conical pole-pair separated bearingless electric machine | |
| de Araujo et al. | Electromagnetic harvester for lateral vibration in rotating machines | |
| CN105162361A (en) | Permanent magnetic force control system with low power consumption | |
| CN203774908U (en) | Motor rotor and AC motor using same | |
| CN103821835A (en) | Controllable random variable stiffness bellows coupling and method thereof | |
| Fang et al. | Analysis of electromagnetic force distribution on end winding of electrical submersible motor during starting transient operation | |
| Lee et al. | Improvements of performance of multi-DOF spherical motor by double air-gap feature | |
| CN204437040U (en) | A kind of armature shaft of motor | |
| CN103440954B (en) | A kind of method that rotating magnetic field generator and rotating excitation field produce | |
| CN105281448A (en) | Asynchronous motor with axial adjacent segment same-direction and reverse-direction power-on windings | |
| Wang et al. | A novel bearingless switched reluctance motor | |
| CN106130307A (en) | A kind of pulsed magnetic power generator equipment | |
| Virtič | Variations of permanent magnets dimensions in axial flux permanent magnet synchronous machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170226 |