CN203784125U - Controllable random variable-rigidity corrugated pipe coupler - Google Patents
Controllable random variable-rigidity corrugated pipe coupler Download PDFInfo
- Publication number
- CN203784125U CN203784125U CN201420083515.8U CN201420083515U CN203784125U CN 203784125 U CN203784125 U CN 203784125U CN 201420083515 U CN201420083515 U CN 201420083515U CN 203784125 U CN203784125 U CN 203784125U
- Authority
- CN
- China
- Prior art keywords
- bellows
- coil
- electromagnetic coil
- generating means
- corrugated pipe
- 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
Abstract
The utility model discloses a controllable random variable-rigidity corrugated pipe coupler. Rotary shafts at left and right ends of a rotary machinery are respectively connected into two end holes of a corrugated pipe (5); the corrugated pipe (5) is filled with magneto-rheological elastomers (7); an electromagnet iron core (2) is fixed in an annular loop of a support seat (1); two coil skeletons (4) symmetrically vertically sleeve the electromagnet iron core (2); two electromagnetic coils are respectively wound on the two coil skeletons (4) in symmetric distribution in the vertical direction up and down; a certain distance is kept between the corrugated pipe (5) and the electromagnetic coils (3). A radon current generator and a direct current generator are both electrically connected with the electromagnetic coils (3). The elastic modulus acted to the magneto-rheological elastomers in the corrugated pipe can be randomly changed, so the rigidity of a corrugated pipe coupler can be randomly changed.
Description
Technical field
The utility model belongs to a kind of random rigidity field that becomes, and is specifically related to a kind of bellows coupling that can controlled random change rigidity.
Background technique
Coupling is mainly used in the connection in mechanical transmission, is the vitals of all kinds of rotating machineries.In rotating machinery, coupling not only plays the effect of each rotor, transmitting torque and compensating axial, angle and radial displacement of connection, and dynamics, running accuracy and stability etc. on whole rotor-support-foundation system have important impact.Therefore, need to study the impact of coupling on rotatory mechanical system dynamics.If but want the impact of experimental research coupling on rotatory mechanical system dynamics, must a large amount of coupling of processing, this is in the time and be all unallowed economically.Therefore need to be by means of a kind of coupling that becomes rigidity.
Through prior art literature search is found, Chinese Patent Application No. be CN1456824A's " a kind of become rigidity bellows coupling ", mainly to carry out stability control for many rotors are coupled to system, eliminate each rotor oscillation judder causing that superposes, can not meet the requirement of experimental research coupling on the impact of rotatory mechanical system dynamics.
Summary of the invention
The purpose of this utility model is the bellows coupling that one of development can become rigidity at random, replaces in experimentation and needs to process too much part, reduces experimental cost and shortens research cycle with this.
The utility model is achieved through the following technical solutions, a kind of controlled random change rigidity bellows coupling, comprise supporting base 1, electromagnet core 2, electromagnetic coil 3, coil rack 4, bellows 5, a left side for rotating machinery, right-hand member rotating shaft, magnetic rheology elastic body 7, random current generating means, direct current (d.c.) generating means, a left side for rotating machinery, right-hand member rotating shaft is connected in two stomidiums of described bellows, in described bellows 5, be full of magnetic rheology elastic body 7, described electromagnet core is fixed in the annular snare of supporting base, described coil rack is two coil racks of the symmetrical annular snare that is positioned at supporting base of upper and lower Vertical direction, two coil racks are set on electromagnet core up and down symmetrically, described electromagnetic coil comprises the electromagnetic coil of two symmetrical differential connections of upper and lower Vertical direction, and be wrapped in respectively on two symmetrical coil racks of upper and lower Vertical direction, between described bellows and electromagnetic coil, keep certain gap, random current generating means and direct current (d.c.) generating means are all electrically connected with electromagnetic coil.
Further, described random current generating means comprises computer, analog output unit, power amplifier, produce random numbers described computer, convert random numbers the described analog output unit of analog amount to and analog amount converted between the power amplifier of experiment electric current of required size to electrical connection mutually and be electrically connected with electromagnetic coil is differential.
Further, described direct current (d.c.) generating means is the accurate digital control [constant of a generation direct current (d.c.) being electrically connected with electromagnetic coil.
Further, the mode that the left and right end rotating shaft of rotating machinery connects by clamping type or expansion sleeve type connects is connected in two stomidiums of described bellows.
Further, the left and right end rotating shaft of rotating machinery is connected and is connected in two stomidiums of described bellows by positioning screwn or key.
Technique effect of the present utility model is: by changing the electric current of electromagnetic coil, it is capable of regulating electromagnetic field intensity E size, thereby in change bellows coupling, the Young's modulus of magnetic rheology elastic body, is adjusted the torsional stiffness of bellows coupling and flexural rigidity.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is work schematic diagram of the present utility model.
Wherein: 1 is bearing, 2 is electromagnet core, and 3 is electromagnetic coil, 4 is coil rack, 5 is bellows, the 6 right-hand member rotating shafts that are rotating machinery, and 7 is magnetic rheology elastic body, 8 is positioning screwn, 9 is power amplifier, and 10 is that analog output unit, 11 is computer, and 12 is DC current source, 13 is locating stud, the 14 left end rotating shafts that are rotating machinery.
Embodiment
In bellows coupling, bellows is the critical piece that bears moment of torsion.By be filled with magnetic rheology elastic body in bellows, bellows coupling is become to rigidity control.
Embodiment 1
A kind of controlled random change rigidity bellows coupling, comprise supporting base 1, electromagnet core 2, electromagnetic coil 3, coil rack 4, bellows 5, rotating shaft 6 and 14, magnetic rheology elastic body 7, random current generating means, direct current (d.c.) generating means, the rotating shaft 6 and 14 of rotating machinery is connected in two stomidiums of described bellows 5, in described bellows 5, be full of magnetic rheology elastic body 7, described electromagnet core 2 is fixed in the annular snare of supporting base 1, two coil racks 4 that described coil rack 4 is the symmetrical annular snare that is positioned at supporting base 1 of upper and lower Vertical direction, two laterally zygomorphic being set on electromagnet core 2 of coil rack 4, described electromagnetic coil 3 is the electromagnetic coil of two symmetrical mutual differential connections of upper and lower Vertical direction, and be wrapped in respectively on two symmetrical coil racks 4 of upper and lower Vertical direction, between described bellows 5 and electromagnetic coil 3, keep certain gap, random current generating means and direct current (d.c.) generating means are all electrically connected with electromagnetic coil 3.
Further, be filled with bellows coupling 5 two ends of magnetic rheology elastic body and rotating shaft 6 and 14 fastening by positioning screwn 8 respectively.
Embodiment 2
A kind of controlled random change rigidity bellows coupling, comprise supporting base 1, electromagnet core 2, electromagnetic coil 3, coil rack 4, bellows 5, rotating shaft 6 and 14, magnetic rheology elastic body 7, random current generating means, direct current (d.c.) generating means, the rotating shaft 6 and 14 of rotating machinery is connected in two stomidiums of described bellows 5, in described bellows 5, be full of magnetic rheology elastic body 7, described electromagnet core 2 is fixed in the annular snare of supporting base 1, two coil racks 4 that described coil rack 4 is the symmetrical annular snare that is positioned at supporting base 1 of upper and lower Vertical direction, two laterally zygomorphic being set on electromagnet core 2 of coil rack 4, described electromagnetic coil 3 is the electromagnetic coil of two symmetrical mutual differential connections of upper and lower Vertical direction, and be wrapped in respectively on two symmetrical coil racks 4 of upper and lower Vertical direction, between described bellows 5 and electromagnetic coil 3, keep certain gap, random current generating means and direct current (d.c.) generating means are all electrically connected with electromagnetic coil 3.
Electromagnet core 2 is put into the annular snare of supporting base 1, combined closely in a side of iron core 2 and one end of supporting base 1, by locating stud, electromagnet core 2 is fastened on supporting base 1.
Electromagnet coil 3 is wrapped on coil rack 4, is then enclosed within on electromagnet core 2.Closely cooperate by coil rack 4 and iron core 2, coil rack 4 is firmly fixed on iron core 2.
Bellows coupling of the present utility model, produce bias current to electromagnetic coil 3 by accurate digital control [constant 12, change the magnetic intensity of the interior magnetic rheology elastic body 7 of bellows 5, and then change the Young's modulus of the interior magnetic rheology elastic body 7 of bellows 5, thereby change the rigidity of bellows coupling 5.Produce random numbers by matlab statistics toolbox in computer 11, using the random numbers producing as signal source, convert random numbers to analog output by analog output unit 10, convert thereof into again the experiment random current of required size by power amplifier 9, and be electrically connected with electromagnetic coil is differential; Then, experiment random current is transferred to electromagnetic coil 3, change randomly the magnetic intensity that acts on the interior magnetic rheology elastic body 7 of bellows 5, and then change the Young's modulus of the interior magnetic rheology elastic body 7 of bellows 5, thereby can change randomly the rigidity of bellows coupling.
Actual effect of the present utility model and meaning are: simple in structure, easy to use, by changing the electric current of electromagnetic coil, it is capable of regulating electromagnetic field intensity E size, thereby in change bellows coupling, the Young's modulus of magnetic rheology elastic body, is adjusted the torsional stiffness of bellows coupling and flexural rigidity.
This model utility can be for solving about the rotor dynamics problem of random parameter, and the impact of experimental research coupling on rotor dynamics performance.Owing to needing to process too much part in process of experimental, replace common coupling by random change rigidity bellows coupling, not only can reduce experimental cost, and shorten research cycle.In addition, it can also be used for the reliability and stability analysis to rotating machineries such as various hydraulic generators, Turbo-generator Set, super-magnum centrifuge, compressors, improves efficiency, economic benefit and the Security of rotating machinery operation.
More than show and described basic principle of the present utility model, major character and advantage of the present invention.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a controlled random change rigidity bellows coupling, comprise supporting base, electromagnet core, electromagnetic coil, coil rack, bellows, a left side for rotating machinery, right-hand member rotating shaft, magnetic rheology elastic body, random current generating means, direct current (d.c.) generating means, it is characterized in that: a left side for rotating machinery, right-hand member rotating shaft is connected in two stomidiums of described bellows, in described bellows, be full of magnetic rheology elastic body, described electromagnet core is fixed in the annular snare of supporting base, described coil rack is two coil racks of the symmetrical annular snare that is positioned at supporting base of upper and lower Vertical direction, two coil racks are set on electromagnet core up and down symmetrically, described electromagnetic coil comprises the electromagnetic coil of two symmetrical differential connections of upper and lower Vertical direction, and be wrapped in respectively on two symmetrical coil racks of upper and lower Vertical direction, between described bellows and electromagnetic coil, keep certain gap, random current generating means and direct current (d.c.) generating means are all electrically connected with electromagnetic coil.
2. controlled random change rigidity bellows coupling as described in claim 1, it is characterized in that: described random current generating means comprises computer, analog output unit, power amplifier, produce random numbers described computer, convert random numbers the described analog output unit of analog amount to and analog amount converted between the power amplifier of experiment electric current of required size to electrical connection mutually and be electrically connected with electromagnetic coil is differential.
3. controlled random change rigidity bellows coupling as described in claim 1, is characterized in that: described direct current (d.c.) generating means is the accurate digital control [constant of a generation direct current (d.c.) being electrically connected with electromagnetic coil.
4. controlled random change rigidity bellows coupling as described in claim 1, is characterized in that: the mode that the left and right end rotating shaft of rotating machinery connects by clamping type or expansion sleeve type connects is connected in two stomidiums of described bellows.
5. controlled random change rigidity bellows coupling as described in claim 1, is characterized in that: the left and right end rotating shaft of rotating machinery is connected and connected in two stomidiums of described bellows by positioning screwn or key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083515.8U CN203784125U (en) | 2014-02-26 | 2014-02-26 | Controllable random variable-rigidity corrugated pipe coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083515.8U CN203784125U (en) | 2014-02-26 | 2014-02-26 | Controllable random variable-rigidity corrugated pipe coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784125U true CN203784125U (en) | 2014-08-20 |
Family
ID=51320316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083515.8U Expired - Fee Related CN203784125U (en) | 2014-02-26 | 2014-02-26 | Controllable random variable-rigidity corrugated pipe coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784125U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821835A (en) * | 2014-02-26 | 2014-05-28 | 河南工业大学 | Controllable random variable stiffness bellows coupling and method thereof |
| CN105547718A (en) * | 2015-12-04 | 2016-05-04 | 哈尔滨工程大学 | Girder construction boundary constraint rigidity adjusting test system based on magnetorheological elastomer and test method thereof |
| CN111561539A (en) * | 2020-05-28 | 2020-08-21 | 南京林业大学 | Rotary shearing type magneto-rheological isolation vibration reduction method suitable for limited space |
| CN111566377A (en) * | 2018-01-10 | 2020-08-21 | 因文图斯工程有限公司 | Magnetorheological brake apparatus and method |
-
2014
- 2014-02-26 CN CN201420083515.8U patent/CN203784125U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821835A (en) * | 2014-02-26 | 2014-05-28 | 河南工业大学 | Controllable random variable stiffness bellows coupling and method thereof |
| CN105547718A (en) * | 2015-12-04 | 2016-05-04 | 哈尔滨工程大学 | Girder construction boundary constraint rigidity adjusting test system based on magnetorheological elastomer and test method thereof |
| CN111566377A (en) * | 2018-01-10 | 2020-08-21 | 因文图斯工程有限公司 | Magnetorheological brake apparatus and method |
| US11953064B2 (en) | 2018-01-10 | 2024-04-09 | Inventus Engineering Gmbh | Magnetorheological brake device and method |
| CN111561539A (en) * | 2020-05-28 | 2020-08-21 | 南京林业大学 | Rotary shearing type magneto-rheological isolation vibration reduction method suitable for limited space |
| CN111561539B (en) * | 2020-05-28 | 2021-07-13 | 南京林业大学 | Rotary shearing type magneto-rheological isolation vibration reduction method suitable for limited space |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xu et al. | Nonlinear vibration of a generator rotor with unbalanced magnetic pull considering both dynamic and static eccentricities | |
| CN203784125U (en) | Controllable random variable-rigidity corrugated pipe coupler | |
| Chen et al. | Nonlinear vibration for PMSM used in HEV considering mechanical and magnetic coupling effects | |
| CN101666353B (en) | Active magnetic bearing using bias magnetic flux commonly in radial direction and in axial direction and control method thereof | |
| CN206294011U (en) | A kind of motor base for extending motor service life | |
| CN103414377A (en) | Frequency-modulable rotary piezoelectric power generation device | |
| Yang et al. | Dynamic electromechanical coupling resulting from the air-gap fluctuation of the linear motor in machine tools | |
| Sheng et al. | Nonlinear torsional vibration analysis of motor rotor system in shearer semi-direct drive cutting unit under electromagnetic and load excitation | |
| CN102889970B (en) | Test method capable of realizing vibration characteristics physical separation of stator and rotor | |
| CN102801358B (en) | Bi-directionally magnetically coupled and axially excited and limited rotating-shaft piezoelectric generator | |
| CN105840727B (en) | A kind of adjustable rigidity mechanism of axial magnetic coupling | |
| Chen et al. | An analytical model of unbalanced magnetic pull for PMSM used in electric vehicle: Numerical and experimental validation | |
| CN105258886B (en) | A kind of electromagnetism harmonic wave exciting device of high-speed rotating impeller | |
| Abdel-Khalik et al. | A bearingless coaxial magnetic gearbox | |
| de Araujo et al. | Electromagnetic harvester for lateral vibration in rotating machines | |
| Zhao et al. | Parametric instability induced by traveling magnetic load within permanent magnet motors | |
| CN103821835A (en) | Controllable random variable stiffness bellows coupling and method thereof | |
| CN105186812B (en) | All-closed horizontal birotor generating equipment | |
| CN102570926B (en) | Five-degree-of-freedom suspended electric power generation system | |
| CN103821835B (en) | A kind of controlled random variation rigidity bellows coupling and method | |
| CN105337530A (en) | Piezoelectric motor | |
| Esalat et al. | Analytical modeling for energy harvesting of lateral vibrations of rotating machines via electromagnetic mechanisms | |
| Zhu et al. | Principles and parameter design for AC-DC three-degree freedom hybrid magnetic bearings. | |
| Werner | Mathematical rotordynamic model for lateral vibration analysis of induction motors with dynamic eccentricities regarding start-up | |
| CN106130307A (en) | A kind of pulsed magnetic power generator equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150226 |
|
| EXPY | Termination of patent right or utility model |