CN105840732A - Balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid - Google Patents
Balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid Download PDFInfo
- Publication number
- CN105840732A CN105840732A CN201610182784.3A CN201610182784A CN105840732A CN 105840732 A CN105840732 A CN 105840732A CN 201610182784 A CN201610182784 A CN 201610182784A CN 105840732 A CN105840732 A CN 105840732A
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- China
- Prior art keywords
- balancing head
- main body
- body panel
- head main
- balancing
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/161—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material characterised by the fluid damping devices, e.g. passages, orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid. The structure comprises a balance head body disc and an end surface cover plate; fixed joints connected with a rotor to be balanced or a testing mechanism are formed in shafts at two ends of the center of the balance head body disc; a shaft for coating an electric conducting slide ring is arranged at the upper part of the center of the balance head body disc; an annular through groove is formed in the body part of the balance head body disc; a rectangular groove is formed in the groove wall of the annular through groove; an electromagnet is inserted in the rectangular groove; and the end surface cover plate covers the balance head body disc for totally closing the balance head body disc. The structure solves the vibration problem caused by unbalance in the operation process of a high-speed revolving body; and the balance head body disc is closed through the end surface cover plate, so that the closed structure design prevents secondary injecting problem, and the use is convenient and lasting.
Description
[technical field]
The invention belongs to rotary machine rotor dynamic balance field, be specifically related to a kind of based on magnetic flow liquid Electromagnetic Control
Dynamically balanced balancing head structure.
[background technology]
Dynamic balancing technique, as the key of a rotating machinery and basic technology, is constantly subjected to industrial quarters and
The close attention of art circle and attention.Substantial amounts of statistical data shows that the imbalance of rotor is typically to cause rotating machinery
The main cause of vibration.The uneven flexure that can cause rotor and internal stress change, make the vibration of machine aggravate,
Reduce the work efficiency of machine, time serious, also can cause various accident；It is main that imbalance is not only rotating machinery
Exciting source, and be many risk factors planting self-excited vibration.Once equilibrium condition is improved, and other are one years old
A little phenomena of the failure also will be alleviated therewith and even disappear.So the development and perfection of dynamic balancing technique, to rotating machinery
Equipment normal operation important in inhibiting.
Rotor balancing is formally broadly divided into two aspects: one is off-line balance, i.e. utilizes equipment, refers mainly to
Dynamic balancing machine is to balancing rotor test and correction；One is field balancing, is mainly used in dismounting difficulty, fortune
The field working conditions balance of defeated inconvenience.On-line dynamic balancing is the one in field balancing, by measuring turn-around machine in real time
The vibration of tool, determines amount of unbalance size and phase Angle Position according to the vibration measured, and by adding benefit in real time
Repaying the mode of quality, the mode manually adding compensation quality after replacing shutdown realizes on-line dynamic balancing.Balancing head
Be exactly to realize carrying out the key of mass compensation under non-stop-machine state, therefore, the structure design of balancing head be
The key of line dynamic balance system design.
[summary of the invention]
The purpose of the present invention is to propose to a kind of in high-revolving dynamically balanced based on magnetic flow liquid Electromagnetic Control
Balancing head structure.
It is an object of the invention to be achieved through the following technical solutions:
A kind of based on magnetic flow liquid Electromagnetic Control dynamically balanced balancing head structure, including balancing head main body panel and end face
Cover plate, balancing head main body panel is provided with the central shaft passing perpendicularly through balancing head main body panel center, the two of central shaft
End is provided with connection ready to balance rotor or the fixed interface of mechanism for testing, and conducting slip ring is sleeved on balancing head main body panel
On the central shaft in portion, balancing head main body panel main part separately offers annular through groove, annular through groove around central shaft
Cell wall on offer rectangular channel, electric magnet is inserted in this rectangular channel, and end caps covers at balancing head main body panel
On by its integrally closed.
Further, with 120 degree on the round wall of inner side circle wall and outside of described balancing head main body panel annular through groove
Angle uniformly sets out inside and outside three groups of relative rectangular channels.
Further, described electric magnet is symmetrical structure.
Further, in described balancing head main body panel outer rim and offering screw on end caps, end caps passes through spiral shell
Bolt is fixed on balancing head main body panel and is closed.
Further, described screw uniform intervals is dispensed along on balancing head main body panel outer rim and end caps.
The present invention is based on magnetic flow liquid Electromagnetic Control dynamically balanced balancing head structure, including balancing head main body panel and end
Surface cover, balancing head main body panel main part offers annular through groove, and the design of annular through groove can realize maximum
Take up to limit magnetic flow liquid and then improve balance usefulness, it is achieved a liquid storage life-time service, it is achieved high speed feelings
The not parking dynamic equilibrium of condition lower rotor part, solves the vibration that high speed revolving body causes in running because of imbalance
Problem；This structure uses closing groove to take up magnetic flow liquid, controls magnetic flow liquid mass shift by controllable magnetic field
Mode, it is not necessary to the problem considering continuous filling liquid, enclosed construction design avoid defuelling problem, make
With convenient lasting.
Further, this application of structural design in rotor speed under 200r/min to 3000r/min speed conditions
Rotor dynamic balancing, by joining of the screw of the screw of end caps peripheral edge portion and balance head main body dish peripheral edge portion
Closing, total realizes integration, meanwhile, screw can be also used for adding and compensates quality to realize the present invention
The balance of structure self.
Further, conducting slip ring can be sleeved on the axle of balancing head main body panel central upper, it is achieved synchronous axial system,
Solve the problem that in rotary course, electric magnet wire is drawn.
The present invention has the advantage that compared with designing with existing balancing head
1. compensate quality and use magnetic flow liquid, a kind of stable organic solution can be able to being subjected to displacement under the action of a magnetic field；
2. use Electromagnetic Control mode to realize on-line dynamic balancing, utilize magnetic flow liquid under the action of a magnetic field that controlled position occurs
Moving is ultimate principle, and the magnetic field intensity produced by electric current control break electric magnet is changed and controls magnetic flow liquid
Distributed mass, thus realize compensating the online interpolation of quality；
3. electric magnet is inserted balancing frame, it is achieved be synchronized with the movement, solve complexity when the two exists relative motion
Magnetic field control problem；
4. three electric magnet of 120 degree each other, can meet the trim demand of each orientation angles, simplify simultaneously and finish
Structure number of parts.
[accompanying drawing explanation]
Fig. 1 is the structural representation that balancing head entirety of the present invention has been assembled；
Wherein: 1 is balancing head main body panel；2 is electric magnet；3 is end caps；4 is conducting slip ring；5 is solid
Stationary interface；6 is screw.
[detailed description of the invention]
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings, but be not limited to these and implement
Example.
As it is shown in figure 1, present invention balancing head structure of high-revolving rotating machinery on-line dynamic balancing in being used for, bag
Include balancing head main body panel 1 and end caps 3, balancing head main body panel 1 main part offer annular through groove in order to
Take up magnetic flow liquid three electric magnet 2 of plug-in mounting simultaneously, the cell wall of annular through groove offers rectangular channel, electric magnet
2 are inserted in this rectangular channel, and balancing head main body panel 1 central upper is provided with the axle for being set with conducting slip ring 4,
Outer peripheral screw 6 counterface cover plate 3, for sealing the effect of groove, can also add compensation at screw
Quality is for the balance check and correction of this balance self, and the upper and lower two ends of balancing head main body panel are test fixed interface 5,
The present invention is fixed with balancing machine, in order to quantitative determine the balanced capacity of the present invention.
The balancing head simple in construction of this structure, all part integration operate, can be directly mounted on rotating machinery
Realize the balancing activity in the case of dynamically not shutting down, reduce mechanical vibration, solve conventional mechanical type and liquid injecting type
The problems such as balancing head structure complexity and secondary fluid injection, in the case of the present invention is applicable to high speed, the online dynamic of rotor is put down
Weighing apparatus.
Balancing head main body panel has 360 degree of grooves for taking up magnetic flow liquid, output with 120 degree of angles meanwhile
Three groups of rectangular channels are used for inserting electric magnet 2.
Electric magnet 2 is symmetrical structure so that electric magnet can be inserted in balancing head main body panel 1, it is achieved integration；
Conducting slip ring 4 is sleeved on the axle of balancing head main body panel 1 central upper, easy for installation, uses conducting slip ring side
Formula realizes balancing head entirety the picking out of electric magnet wiring when rotating with ready to balance component.
The present invention carries out experimental verification, and using Germany's SCHENCK model is that the vertical hard bearing of HV2-30 moves
Balancing machine, by its built-in sensors and computer, can show the imbalance of component fixed thereon in real time
Situation.When experimental verification, first balancing head of the present invention is fixed on balancing machine by lower end fixed interface 5,
Connect wire, after injecting magnetic flow liquid and closing, start balancing machine, rotating speed is set to 800r/min, logical
Cross DC source electric magnet is powered, the change of balanced compensated quality can be realized by changing size of current
Change.
Following table provides after the present invention gradually changes supply current size, the situation that amount of unbalance reduces:
| Sequence number | Size of current (A) | Amount of unbalance angle position (is spent) | Amount of unbalance size (g) |
| 1 | 0.00 | 142 | 8.15 |
| 2 | 0.15 | 160 | 8.12 |
| 3 | 0.20 | 163 | 7.98 |
| 4 | 0.25 | 158 | 7.77 |
| 5 | 0.30 | 170 | 7.74 |
| 6 | 0.35 | 167 | 6.52 |
| 7 | 0.40 | 175 | 6.34 |
| 8 | 0.45 | 169 | 5.87 |
| 9 | 0.50 | 162 | 5.21 |
| 10 | 0.55 | 160 | 5.01 |
| 11 | 0.60 | 166 | 4.86 |
| 12 | 0.65 | 164 | 4.55 |
| 13 | 0.70 | 164 | 4.07 |
| 14 | 0.75 | 163 | 3.41 |
| 15 | 0.80 | 168 | 3.11 |
| 16 | 0.85 | 165 | 2.63 |
| 17 | 0.90 | 167 | 2.14 |
| 18 | 0.95 | 168 | 1.82 |
| 19 | 1.00 | 166 | 1.24 |
| 20 | 1.10 | 162 | 0.88 |
| 21 | 1.20 | 163 | 0.71 |
| 22 | 1.30 | 164 | 0.59 |
| 23 | 1.40 | 164 | 0.32 |
| 24 | 1.50 | 165 | 0.3 |
From table 1 it appeared that: by improve constantly current intensity so that control electric magnet produce magnetic field intensity,
Near 164 degree of positions, initial amount of unbalance is 8.15g, by the correction of the present invention, reaches 1.5A at electric current
Time, amount of unbalance has been attenuated to 0.30g, and for the 3.68% of original unbalance, uneven situation obtains
Significantly control and revise.Experiment shows, after the balancing head on-line dynamic balancing of the present invention, and uneven situation
Being significantly improved, the present invention can realize balance on-line to rotor effectively.
Above content is to combine that concrete preferred implementation is made for the present invention to be elaborated further, it is impossible to
Assert that the detailed description of the invention of the present invention is only limitted to this, for general technical staff of the technical field of the invention
For, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all answer
Scope of patent protection is determined by the claims submitted to when being considered as belonging to the present invention.
Claims (5)
1. one kind based on magnetic flow liquid Electromagnetic Control dynamically balanced balancing head structure, it is characterised in that: include putting down
Weighing apparatus head main body dish (1) and end caps (3), balancing head main body panel (1) is provided with and passes perpendicularly through balancing head
The central shaft at main body panel (1) center, the two ends of central shaft are provided with and connect consolidating of ready to balance rotor or mechanism for testing
Stationary interface (5), conducting slip ring (4) is sleeved on the central shaft on balancing head main body panel (1) top, balancing head
Main body panel (1) main part separately offers annular through groove around central shaft, and the cell wall of annular through groove offers
Rectangular channel, electric magnet (2) is inserted in this rectangular channel, and end caps (3) covers in balancing head main body panel (1)
On by its integrally closed.
2. as claimed in claim 1 based on magnetic flow liquid Electromagnetic Control dynamically balanced balancing head structure, it is special
Levy and be: with 120 on the inner side circle wall of described balancing head main body panel (1) annular through groove and outside circle wall
Degree angle uniformly sets out inside and outside three groups of relative rectangular channels.
3. as claimed in claim 1 based on magnetic flow liquid Electromagnetic Control dynamically balanced balancing head structure, it is special
Levy and be: described electric magnet (2) is symmetrical structure.
4. tying based on the dynamically balanced balancing head of magnetic flow liquid Electromagnetic Control as described in any one of claim 1-3
Structure, it is characterised in that: in described balancing head main body panel (1) outer rim and offer screw (6) on end caps (3),
End caps (3) is bolted on balancing head main body panel (1) and is closed.
5. tying based on the dynamically balanced balancing head of magnetic flow liquid Electromagnetic Control as described in any one of claim 1-3
Structure, it is characterised in that: described screw (6) uniform intervals is dispensed along balancing head main body panel (1) outer rim and end
On surface cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182784.3A CN105840732A (en) | 2016-03-28 | 2016-03-28 | Balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182784.3A CN105840732A (en) | 2016-03-28 | 2016-03-28 | Balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840732A true CN105840732A (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610182784.3A Pending CN105840732A (en) | 2016-03-28 | 2016-03-28 | Balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525336A (en) * | 2016-10-31 | 2017-03-22 | 石家庄铁道大学 | Rotor system unbalanced quantitative measurement system based on magnetorheological fluid and measurement method |
| CN109565214A (en) * | 2018-01-04 | 2019-04-02 | 深圳配天智能技术研究院有限公司 | A kind of motor and balancing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000300835A (en) * | 1999-04-19 | 2000-10-31 | Copcom Co Ltd | Playing time measuring device |
| CN2744892Y (en) * | 2004-05-15 | 2005-12-07 | 鸿富锦精密工业（深圳）有限公司 | Rotation balancing arrangement |
| CN102183338A (en) * | 2011-01-18 | 2011-09-14 | 西安交通大学 | Liquid-injection type online dynamic balance head structure for high rotating speed |
| CN105004482A (en) * | 2015-07-14 | 2015-10-28 | 西安交通大学 | Dynamic balancing method through electromagnetic controlling for magnetorheological fluid |
-
2016
- 2016-03-28 CN CN201610182784.3A patent/CN105840732A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000300835A (en) * | 1999-04-19 | 2000-10-31 | Copcom Co Ltd | Playing time measuring device |
| CN2744892Y (en) * | 2004-05-15 | 2005-12-07 | 鸿富锦精密工业（深圳）有限公司 | Rotation balancing arrangement |
| CN102183338A (en) * | 2011-01-18 | 2011-09-14 | 西安交通大学 | Liquid-injection type online dynamic balance head structure for high rotating speed |
| CN105004482A (en) * | 2015-07-14 | 2015-10-28 | 西安交通大学 | Dynamic balancing method through electromagnetic controlling for magnetorheological fluid |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525336A (en) * | 2016-10-31 | 2017-03-22 | 石家庄铁道大学 | Rotor system unbalanced quantitative measurement system based on magnetorheological fluid and measurement method |
| CN106525336B (en) * | 2016-10-31 | 2018-11-02 | 石家庄铁道大学 | Rotor-support-foundation system amount of unbalance quantitative measurement system based on magnetorheological fluid and measurement method |
| CN109565214A (en) * | 2018-01-04 | 2019-04-02 | 深圳配天智能技术研究院有限公司 | A kind of motor and balancing device |
| WO2019134097A1 (en) * | 2018-01-04 | 2019-07-11 | 深圳配天智能技术研究院有限公司 | Motor and balancing device |
| CN109565214B (en) * | 2018-01-04 | 2021-05-07 | 深圳配天智能技术研究院有限公司 | Motor and balancing device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
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| RJ01 | Rejection of invention patent application after publication |