CN201266130Y - Dynamic balancing machine test device based on PC machine - Google Patents
Dynamic balancing machine test device based on PC machine Download PDFInfo
- Publication number
- CN201266130Y CN201266130Y CNU2008201528700U CN200820152870U CN201266130Y CN 201266130 Y CN201266130 Y CN 201266130Y CN U2008201528700 U CNU2008201528700 U CN U2008201528700U CN 200820152870 U CN200820152870 U CN 200820152870U CN 201266130 Y CN201266130 Y CN 201266130Y
- Authority
- CN
- China
- Prior art keywords
- dynamic balancing
- sensor
- signal
- data collecting
- balancing machine
- 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
Images
Landscapes
- Gyroscopes (AREA)
Abstract
The utility model relates to a dynamic balancing machine testing device of a rotary machine, comprising a left piezoelectricity sensor, a right piezoelectricity sensor, a photoelectric sensor, a signal conditioning plate, a PCI bus data collecting card and a data processing platform. Signals collected by the left piezoelectricity sensor, the right piezoelectricity sensor and the photoelectric sensor enter the data processing platform through the signal conditioning plate and the PCI buss data collecting card and are calculated to obtain the dynamic balancing results. The technical scheme changes the original testing realizing scheme in the field through adopting the PCI bus data collecting technology in the dynamic balancing machine testing device and improves the testing precision of the field. The operation and the use are more convenient and humanized, and the function upgrade is also more convenient.
Description
Technical field
The utility model relates to the mechanical test field, relates in particular to a kind of rotating machinery dynamic balancing machine proving installation.
Background technology
Develop rapidly along with commercial production and science and technology, the working speed of various rotating machineries (plant equipment such as steam turbine, the hydraulic turbine, generator, aeromotor, centrifugal compressor) is more and more high, if the amount of unbalance of rotor is big, can influence the serviceable life of equipment, even cause a serious accident.Therefore, the balance correction problem of rotational parts and rotary machine just seems important all the more, balancing technique has also formed an independently subject gradually, and balance correction equipment---dynamic balancing machine becomes the indispensable instrument of high-speed rotary part manufacturer, has the very big market demand.The core technology of dynamic balancing machine is a test macro, and the quality of test macro has determined the measuring accuracy height of dynamic balancing machine.
At present, domestic dynamic balancing measurement system adopts hardware circuit or Single Chip Microcomputer (SCM) system to realize that precision is not high, and function is simple mostly.The dynamic balancing measurement technology based on PC is adopted in the development of computer technology, control technology thereupon, not only can improve precision, can also be user-friendly, expand the function of dynamic balancing machine.
Summary of the invention
The purpose of this utility model provide a kind of easy to use, precision is high and expand dynamic balancing measurement device easily.
For achieving the above object, the technical solution of the utility model is a kind of dynamic balancing machine proving installation based on PC, comprise left piezoelectric sensor, right piezoelectric sensor, photoelectric sensor, signal regulating panel, pci bus data collecting card and data processing platform (DPP), the signal that is picked up by described left piezoelectric sensor, right piezoelectric sensor and photoelectric sensor passes through described signal regulating panel and described pci bus data collecting card, enter into described data processing platform (DPP), obtain the transient equilibrium result by calculating.Described signal regulating panel comprises pre-process unit, program control amplifying unit, pulse shaping circuit, frequency multiplier circuit and bandpass filtering unit.
The beneficial effects of the utility model are, by in the dynamic balancing measurement device, adopting the pci bus data acquisition technology, changed the test implementation in original this area, promoted the measuring accuracy of this area, convenient hommization on manipulating, function upgrading is also convenient.
Description of drawings
Fig. 1 is the theory diagram that the device of the utility model one embodiment is formed
Fig. 2 is the device flow chart of data processing figure of the utility model one embodiment
Embodiment
Below in conjunction with drawings and Examples the technical solution of the utility model is described further.
As shown in Figure 1, the dynamic balancing measurement device of rotating machinery is made up of rotor, sensor, signal-processing board, data collecting card and PC data processing platform (DPP) etc.The effect of signal regulating panel is the charge signal of vibration piezoelectric sensor to be nursed one's health become to be suitable for the signal that capture card is gathered, and pulse signals is carried out shaping simultaneously, and shaped pulse signal enters computing machine by capture card, realizes tachometric survey and integer-period sampled.
Signal condition comprises pre-process unit, program control amplifying unit and bandpass filtering unit.Preposition amplifier section comprises charge amplifying circuit and double integrating circuit, and the effect of double integrating circuit is to remove rotating speed causes centrifugal force to amount of unbalance influence.
Program control amplifying unit is connected in series by amplification module and attenuation module, and amplification module is controlled the value that electronic switch is realized the amplifier feedback resistive network by 3 digital signals of capture card output, thereby realizes the control of 8 kinds of enlargement factors; Attenuation module realizes the control of 4 kinds of attenuation multiples by 2 Digital Signals of capture card output, and the two combines the gain control that can realize 32 gears.
The effect of bandpass filtering unit is to consider to remove the signal content that rotates different frequencies with rotor, keeps the vibration vibration signal composition that amount of unbalance causes, can improve signal to noise ratio (S/N ratio).Here adopt switching capacity filter MF10CCN to realize bandpass filtering, this wave filter needs 50f
0(f
0Being centre frequency) pulse signal is as clock signal.Here adopt the phase locking frequency multiplying circuit to realize the clock frequency of center bandpass filtering.
Power module be used for to photoelectric sensor provide+5V and+the 12V power supply, simultaneously the device for signal-processing board provide ± 5V and ± the 12V working power.
The pci data capture card selects for use the AC6621 number of the two promise observation and control technology company limiteds in Beijing to adopt card, by analog quantity input AI, digital quantity output DO and the digital quantity input DI port and the PC swap data of this card.
The software flow of device as shown in Figure 2, the automatic gain control module is the size according to sampled value, realizes automatic control to enlargement factor and attenuation multiple by changing control signal, and the maximal value of vibration signal is controlled between the 3V-4V.
Integer-period sampled implementation method is: determine sample frequency (generally getting sample frequency 960 times greater than gyro frequency) according to rotor gyro frequency T, start sampling, and make the sampling time greater than 1.5T, read number and adopt the data cached array that deposits in of card, intercept the vibration signal sampled value according to two of key signal continuous rising edges, obtain the sampled data of complete cycle, from the sampled data of complete cycle, evenly extract 32 data at last.
Integer-period sampled 32 data that obtain obtain the size and the phase place of the vibration signal of each frequency multiplication as the input of FFT conversion after the conversion, take out to be with signal frequently with rotating speed that amount of unbalance produces.
The plane resolve module according to 6 kinds of supporting way commonly used, according to mechanics principle, the stressed of the strong point decomposed on two rectifying planes.
Here adopt the mode of permanent calibration, calculate the calibration parameter by the data of three drivings.The vibration data of the record initial unbalance, correspondence of driving for the first time; After adding test mass, left rectifying plane drives the vibration data of two strong points of record for the second time again; After adding test mass, right rectifying plane drives the vibration data of two strong points of record for the third time.Comprehensive three vibration datas, adopt incremental mode to calculate four calibration parameters: left and right sides sensor and measure the coefficient ratio of passage, the amplitude proportion coefficient, about measure the phase differential that leads to, and phase pushing figure.
The component computing function is that the value of the amount of unbalance that will measure decomposes on the position that the user sets, and is convenient to carry out dynamic balance calibration.The five equilibrium that goes to heavy position that the user can set on the rectifying plane is in advance counted and start angle, carries out component computing function module, can decompose the result who measures amount of unbalance on two adjacent Along ent positions.
The technical solution of the utility model is by analysis and the processing of computing machine to the vibration signal of two strong points, obtains the size and the angle of two amount of unbalances on the plane.
For this reason, device of the present utility model is made up of vibration signal processing circuit, data acquisition equipment and computer software three parts.Described vibration signal processing circuit comprises charge amplifying circuit, integrating circuit, programmable amplifying circuit and filtering circuit composition; Described data acquisition equipment adopts the multifunctional data acquisition card of pci bus, voltage input mode; The running environment of described computer software is Windows 2000/XP, and developing instrument is C++Builder.
The technical program has following features: (1) can be applicable to piezoelectric transducer and velocity sensor, by dialling Select sensor type to switch, velocity sensor does not need through charge amplifying circuit; (2) integrating circuit For two-fold or triple integral, switch by wire jumper, during velocity sensor, adopt triple integral; (3) program control The control signal of amplifying is adopted card output by the multi-functional number in the computer; (4) adopt the logical tracking filter of band to 2 The road signal is processed; (5) adopt the FFT conversion to extract size and the phase place of amount of unbalance in the computer software; (6) software is realized resolving and planar separation.
Claims (2)
1, a kind of dynamic balancing machine proving installation based on PC, it is characterized in that, comprise left piezoelectric sensor, right piezoelectric sensor, photoelectric sensor, signal regulating panel, pci bus data collecting card and data processing platform (DPP), the signal that is picked up by described left piezoelectric sensor, right piezoelectric sensor and photoelectric sensor passes through described signal regulating panel and described pci bus data collecting card, enter into described data processing platform (DPP), obtain the transient equilibrium result by calculating.
2, a kind of according to claim 1 dynamic balancing machine proving installation based on PC is characterized in that, described signal regulating panel comprises pre-process unit, program control amplifying unit, pulse shaping circuit, frequency multiplier circuit and bandpass filtering unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201528700U CN201266130Y (en) | 2008-09-09 | 2008-09-09 | Dynamic balancing machine test device based on PC machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201528700U CN201266130Y (en) | 2008-09-09 | 2008-09-09 | Dynamic balancing machine test device based on PC machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266130Y true CN201266130Y (en) | 2009-07-01 |
Family
ID=40832504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201528700U Expired - Fee Related CN201266130Y (en) | 2008-09-09 | 2008-09-09 | Dynamic balancing machine test device based on PC machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266130Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353500A (en) * | 2011-06-03 | 2012-02-15 | 上海师范大学 | Extraction method of unbalanced signal for dynamic balance measurement |
| CN104949838A (en) * | 2015-05-19 | 2015-09-30 | 成都诚邦动力测试仪器有限公司 | Band-pass filter circuit based engine test and control system |
| CN105606304A (en) * | 2016-03-23 | 2016-05-25 | 广东顺威精密塑料股份有限公司 | Intelligent dynamic balance testing system for dynamic balancing machine |
| CN106404284A (en) * | 2016-11-16 | 2017-02-15 | 北华大学 | Internet-based absolute value calibration dynamic balancer electrical measurement display box control system |
| CN115673874A (en) * | 2022-12-30 | 2023-02-03 | 北京精雕科技集团有限公司 | Method and device for detecting maneuvering balance of numerical control machine turntable |
-
2008
- 2008-09-09 CN CNU2008201528700U patent/CN201266130Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353500A (en) * | 2011-06-03 | 2012-02-15 | 上海师范大学 | Extraction method of unbalanced signal for dynamic balance measurement |
| CN104949838A (en) * | 2015-05-19 | 2015-09-30 | 成都诚邦动力测试仪器有限公司 | Band-pass filter circuit based engine test and control system |
| CN105606304A (en) * | 2016-03-23 | 2016-05-25 | 广东顺威精密塑料股份有限公司 | Intelligent dynamic balance testing system for dynamic balancing machine |
| CN106404284A (en) * | 2016-11-16 | 2017-02-15 | 北华大学 | Internet-based absolute value calibration dynamic balancer electrical measurement display box control system |
| CN106404284B (en) * | 2016-11-16 | 2019-01-22 | 北华大学 | The dynamic balancing machine electrical measurement show case control system of absolute value calibration Internet-based |
| CN115673874A (en) * | 2022-12-30 | 2023-02-03 | 北京精雕科技集团有限公司 | Method and device for detecting maneuvering balance of numerical control machine turntable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102155984B (en) | General vibration signal measuring system of fan | |
| CN105741180B (en) | Grain yield graph drawing system of combined harvester | |
| CN201266130Y (en) | Dynamic balancing machine test device based on PC machine | |
| CN101639395B (en) | Improved holographic dynamic balancing method of high-speed main shaft | |
| CN101004438A (en) | Excitation test system based on virtual instrument | |
| CN1825082B (en) | Automatic diagnosing system for rolling bearing fault | |
| CN102890477B (en) | On-line active dynamic balance measurement and control device and on-line active dynamic balance measurement and control method | |
| CN102980722B (en) | Unbalance signal extracting method applicable to online dynamic balancing | |
| CN201421365Y (en) | Portable vibration measuring and analyzing instrument | |
| CN201014997Y (en) | Virtual instrument based excitation system testing device | |
| CN102353500B (en) | Extraction method of unbalanced signal for dynamic balance measurement | |
| CN209181958U (en) | A kind of flex rotor experiment station high-speed balancing test macro | |
| CN104198031A (en) | Torsional vibration signal detection method and device for engine crankshaft | |
| CN107121271B (en) | Experimental method for identifying foundation modal parameters of heavy machine tool foundation | |
| CN103134582B (en) | Aero-engine body vibration component tracking numerical computation method | |
| CN100447576C (en) | Driver of resonant transducer and signal collector | |
| CN102445264B (en) | Shake measuring device | |
| CN103698088A (en) | Testing method for asymmetric rigidity of turbonator rotating shaft | |
| CN114563131A (en) | Single-measuring-point multi-roller simultaneous dynamic balancing method and system | |
| CN100440085C (en) | Combustion presure data collecting and combustion analytic system for engine cylinder | |
| CN205620086U (en) | A intelligent dynamic balance test system for dynamic balancing machine | |
| CN201740627U (en) | Electric measurement device for dynamic balance | |
| CN209182346U (en) | A kind of rotary speed test system based on vibration analysis | |
| CN107560717A (en) | Motor oscillating measuring instrument based on MEMS sensor | |
| CN117419923A (en) | Pipelined hardware phase resolving method and resolving system suitable for engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20110909 |