CN1821612A - On-line automatic ballance regulator - Google Patents
On-line automatic ballance regulator Download PDFInfo
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- CN1821612A CN1821612A CN 200610046118 CN200610046118A CN1821612A CN 1821612 A CN1821612 A CN 1821612A CN 200610046118 CN200610046118 CN 200610046118 CN 200610046118 A CN200610046118 A CN 200610046118A CN 1821612 A CN1821612 A CN 1821612A
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- balance
- rotor
- line automatic
- balance disc
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Abstract
The automatically balancing on-line regulator is based on the automatic balance technology of rotary machine. One pair of balance discs in the millimeter level thickness and with mass blocks are installed near the rotor wheel rotating in high speed and connected to the controller. The controller to control the rotation speed and angle of the balance discs excites piezoelectric ceramic by means of high frequency voltage to produce ultrasonic vibration as the driving force. The present invention realizes the on-line automatic balance of high speed rotating machine by means of self fault healing, and completes the re-distribution of rotor system mass with the balance disc pair. The rigid balance discs mounted onto the rotor shaft rotating in high speed without gap can rotate controllably around the rotor shaft.
Description
Technical field
The present invention relates to a kind of mechanical device, particularly a kind of automatic balancing technology with rotating machinery is the on-line automatic balance regulator of main contents.
Background technique
With the automatic balancing technology of rotating machinery is that the self adaption control technique of main contents is one of main fields of fault self-healing engineering research.To the power station gas-turbine, from the centrifugal compressor to the high-precision grinder, high-speed rotating machine almost all is widely used in all modern industry fields and is bringing into play critical effect from aeroengine.In a single day this type systematic breaks down and may cause major accident, and causes the tremendous economic loss.Since the sixties in last century, international project circle has been developed the monitoring of equipment diagnostic techniques, and has extensively adopted the locking system that stops in emergency, and has brought into play important function for ensuring safety in production.But the disorderly closedown maintenance can cause enormous economic loss, also may produce new potential safety hazard in the starting stopping process.Engineering practice shows that except the minority catastrophic failure, most of faults are progressive processes, can prevent fully if early detection in time adopts appropriate measures.The modern project science is being developed a kind of theory and method that realizes safety of equipment own and long-term operation, is intended to change only depend on the emergency stop protection machine and overhaul the conventional method of eliminating fault by the people fully.This theory and method are different from Device Diagnostic and precognition maintenance technique again; it efforts be made so that change system possesses the fault self-recovery function; " voluntarily " elimination fault is in operation; and not exclusively be to shut down to fix a breakdown, thereby realize that equipment failure is by simple " healing " leap to " self-healing " by the people.
Automatic ballance regulator mainly is with the piezoelectric constant production technology, the capable ripple of ultrasound drives, and mechanical friction technology, single-chip microcomputer PID control technique etc. are background.
Piezoelectric constant is the magnetized disk of being produced by special material of split pole.After the Curies found piezoelectric effect, piezoelectric constant had just occurred.Piezoelectric constant mainly is divided into the A utmost point, the B utmost point, the S utmost point (also being base stage).Pass to the two-phase high-frequency voltage at A, B the two poles of the earth, just electric energy can be converted into mechanical energy by the piezoelectric inverse effect, promptly the contacted with it balancing patch of capable wave motion drive by piezoelectric ceramic rotates.The S utmost point then utilizes the piezoelectric constant positive-effect that the mechanical motion that produces is converted into electric energy, thereby feeds back, and monitoring in real time makes the motion of balancing patch more help eliminating the amount of unbalance of rotor.
Because "+" carried out at A, B the two poles of the earth of piezoelectric ceramic, "-" split pole magnetization at interval under the excitation of high-frequency voltage, will produce the motion that is similar to capable ripple, thereby balancing patch is produced and the opposite motion of row wave motion direction.Because balancing patch is annular, rotatablely move so just produce.
Transmission between piezoelectric ceramic and the balancing patch is finished by friction, and The Application of Technology such as deflate frictional heat and loss are very useful to this device.
Angle and precision that balancing patch rotates are all controlled by single-chip microcomputer.The programming of main employing Fuzzy Adaptive PID Control algorithm realizes.
Summary of the invention
The present invention is to be the on-line automatic dynamic poise device of purpose high-speed rotating machine with equipment failure self-healing.Ultrasonic vibration with piezoelectric ceramic is the balance regulator of driving force, the vibration of this on-line automatic dynamic poise device rotor-support-foundation system mainly produces by mass distribution is uneven, the redistribution of the quality of rotor-support-foundation system is to be realized by a pair of Balance disc that several millimeters thick are only arranged that is installed near rotor disk, and the rigid balancing coiling rotor shaft that no gap is installed on the rotor shaft of high speed rotating is done the may command rotation.
The present invention is achieved by the following technical solutions:
A kind of on-line automatic balance regulator is being installed a pair of Balance disc near the rotor disk place, and Balance disc links to each other with controller.
Described on-line automatic balance regulator, its rotor are the rotor shafts of high-speed rotating machine.
Described on-line automatic balance regulator, its Balance disc are millimeter level thickness, and mass block is arranged on the Balance disc.
Described on-line automatic balance regulator, the rotating speed of its control Balance disc and the controller of corner are to produce ultrasonic vibration as driving force by high-frequency voltage excitation piezoelectric constant.
Advantage of the present invention and effect are:
1. as the axial dimension very little (being not more than 10mm) of the Balance disc of final controlling element, like this Balance disc of size can be installed in easily on the rotor of any rotating machinery and not with other parts interference of original equipment.
2. there is not the gap between each parts of Balance disc, can not cause new imbalance problem.This can't realize in the Equilibrator of existing employing conventional mechanical transmission.
3. can realize the Accurate Position Control of balancing mass.This is to come from rotor shaft rather than come from static ground control device because drive, thereby the rotor rotational speed high no matter with how, it is (very low with respect to the movement velocity of rotor shaft that the relative velocity of rotor shaft and Balance disc only equals Balance disc, be not more than 40r/min, the driving force of existing Electromagnetic Drive Balance disc is from fixing coil, the relative rotation speed of it and Balance disc equals rotor speed, is generally 3000～10000r/min).
Description of drawings
Fig. 1 is a piezoelectric ceramic plan view of the present invention;
Fig. 2 is a piezoelectric ceramic rear view of the present invention;
Fig. 3 is the present invention's row ripple driving principle figure;
Fig. 4 is balance device structure figure of the present invention.
Embodiment
The installation aspect: since aspects such as manufacture, installation, maintenance, the general shaft shoulder that certain axial dimension is arranged that all between its bearing and rotor disk, designs of the rotor of rotating equipment, very limited just because of this size, limited the installation of existing Balance disc.And the total axial thickness of the Balance disc of this research is no more than 10mm, can install on most of equipment.
The raw material aspect: the essential elements material in this research is the piezoelectric ceramic as the torus partitioning polarization of driver.
The gap removing method: so adopt the ultrasonic vibration driven equilibrium dish of piezoelectric vibrator, main consideration can be eliminated the gap between each driving component exactly easily.In designed Equilibrator, the axial clearance of parts is eliminated by the can regulate impacting force of nut and disk spring.On the opposed faces of two Balance discs, respectively be embedded with mixed PTFE (teflon) selflubricating friction ring that adds molybdenum disulfide, to guarantee relatively rotating between two Balance discs.For the ease of installing and improve the versatility of Equilibrator, between rotor shaft and Equilibrator, be provided with the low elastic modulus metal axle sleeve, axle sleeve can adopt interference fit or symmetric arrangement key to fix with axle.All parts and axle sleeve except that Balance disc all adopt interference fit, do not have radial clearance.The Balance disc inner circumference is embedded with selflubricating friction ring, can be regulated or be eliminated by the radial compression amount of axle sleeve by the slight radial clearance that processing factors produces, and rotates to realize its no gap friction around axle sleeve.
Controlling method explanation: will be installed in the outside of experiment of dynamic balancing wheel dish by the good dynamic balancing test device of above-mentioned Design and Machining.The eccentric mass that demarcation power is lost is installed on the wheel disc of experiment of dynamic balancing machine, vow for this known equilibrant, in the control program of Balance disc, set the control corresponding parameter, making Balance disc rotate suitable angle comes this eccentric force of balance to vow, Balance disc is by in the predetermined scheme rotation process and after putting in place, detection record system vibration signal is with research check Equilibrator drive controlling program correctness.Equilibrator and drive controlling program with the random site emission adhesion capsule and pill of pressurized gas injection apparatus to the wheel disc of experiment of dynamic balancing machine, make system produce eccentric at random vibration behind above-mentioned experiment modification and perfection.Detected vibration force is vowed size and phase place, to the control system input control signal, make Balance disc rotate suitable angle and come balance eccentric force arrow at random by remote controller.Drive and control means: market such as the various chips in driving and the control circuit etc. are at home buied.
Claims (4)
1. an on-line automatic balance regulator is characterized in that near the rotor disk place a pair of Balance disc being installed, and Balance disc links to each other with controller.
2. on-line automatic balance regulator according to claim 1 is characterized in that rotor is the rotor shaft of high-speed rotating machine.
3. on-line automatic balance regulator according to claim 1 is characterized in that Balance disc is a millimeter level thickness, has mass block on the Balance disc.
4. on-line automatic balance regulator according to claim 1 is characterized in that controlling the rotating speed of Balance disc and the controller of corner is to produce ultrasonic vibration as driving force by high-frequency voltage excitation piezoelectric constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046118 CN1821612A (en) | 2006-03-20 | 2006-03-20 | On-line automatic ballance regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046118 CN1821612A (en) | 2006-03-20 | 2006-03-20 | On-line automatic ballance regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1821612A true CN1821612A (en) | 2006-08-23 |
Family
ID=36923130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610046118 Pending CN1821612A (en) | 2006-03-20 | 2006-03-20 | On-line automatic ballance regulator |
Country Status (1)
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| CN (1) | CN1821612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940264A (en) * | 2019-03-20 | 2019-06-28 | 中国科学院理化技术研究所 | A kind of Mass Distribution regulating device of high-speed moving object |
-
2006
- 2006-03-20 CN CN 200610046118 patent/CN1821612A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940264A (en) * | 2019-03-20 | 2019-06-28 | 中国科学院理化技术研究所 | A kind of Mass Distribution regulating device of high-speed moving object |
| CN109940264B (en) * | 2019-03-20 | 2021-02-19 | 中国科学院理化技术研究所 | Mass distribution adjusting device of high-speed moving object |
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