CN205620086U - A intelligent dynamic balance test system for dynamic balancing machine - Google Patents
A intelligent dynamic balance test system for dynamic balancing machine Download PDFInfo
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- CN205620086U CN205620086U CN201620232811.9U CN201620232811U CN205620086U CN 205620086 U CN205620086 U CN 205620086U CN 201620232811 U CN201620232811 U CN 201620232811U CN 205620086 U CN205620086 U CN 205620086U
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Abstract
The utility model provides an intelligent dynamic balance test system for dynamic balancing machine, includes the mother board, power module and PC host computer, the power module electric connection mother board, wired or the wireless connection mother board of PC host computer, still include a plurality of vibration signal processing module, at least one rotational speed signal processing module, and a plurality of vibration sensor and/or speed sensor, vibration signal processing module and rotational speed signal processing module are the modularization setting respectively, and relatively independent each other, vibration signal processing module, rotational speed signal processing module, vibration sensor and speed sensor connect the mother board respectively. The utility model discloses an adopt the PC host computer to be the treater, calculation speed is faster, and human -computer interaction is stronger, the data transmission of many channel data transmission is high -speed, supports the hot plug, need not external power supply, and expansion interface is many, each signal processing module modularization, simple structure is reasonable, the stable performance, the measuring accuracy is high and easy to maintain, multisensor information fusion improves balanced precision.
Description
Technical field
This utility model relates to dynamic balancing technique field, moves particularly to a kind of intelligence for dynamic balancing machine
Balance test system.
Background technology
Rotating machinery is the important component part of mechanical system, wide at Aeronautics and Astronautics, automobile, oil etc.
General field is widely used.But due to design defect, rotor material is uneven, manufacture assembling
Error, and rotor has quality to come off in running or there have surrounding medium to adhere to rotor to be first-class former
Cause so that the principal axis of inertia of actual motion rotor deviates its rotation axis, produces mass unbalance, enters
And produce out-of-balance force.Out-of-balance force will cause rotor deflection deformation, produce internal stress, and pass through bearing
Pass to support so that machine produce vibration, noise, and then reduce machine performance, work efficiency and
Service life.In order to avoid the generation of these phenomenons, dynamic balancing measurement becomes elimination rotor unbalance value
Necessary ways.
It is portable dynamic flat mostly the more test system of current domestic appearance is with single-chip microcomputer as core processor
Weighing apparatus instrument, has the biggest advantage during the dynamic balancing at the scene of this pocket-size dynamic balance instrument, but owing to it uses monolithic
Machine is as processor, and processing speed is wired, limits the fortune of novel effective but complex testing algorithm
With, and owing to peripheral keys disk module, display module connect trouble, inconvenient operation, display result are unclear
The reasons such as Chu is understandable, system upgrade difficulty make it promote and receive certain restriction.Along with dynamic balancing technique
Development and the demand of high-accuracy high-efficiency rate dynamic balancing measurement, to multi-measuring point Test System of Dynamic Balance, pass more
Sensor information fusion, effective data processing method propose requirement, and extensive along with notebook computer
Use, use notebook computer to carry out system control, data calculating and result as processor and show,
Spot dynamic balance can be used for, more can develop the Test System of Dynamic Balance that performance is the most excellent.
Therefore, it is necessary to make further improvements.
Utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, easy to operate, precision is high, effect
The intelligent Test System of Dynamic Balance for dynamic balancing machine that rate is high, its be with PC main frame as processor based on
The multi-channel intelligent Test System of Dynamic Balance of USB interface, to overcome weak point of the prior art.
A kind of intelligent Test System of Dynamic Balance for dynamic balancing machine designed by this purpose, including motherboard,
Power module and PC main frame, described power module is electrically connected with motherboard, and described PC is host machine wired or wireless
Connect motherboard；It is characterized in that: also include some vibration signal processing modules, at least one tach signal
Processing module, and some vibrating sensors and/or speed probe；Described vibration signal processing module and turn
Speed signal processing module is respectively modularity and arranges, and independent toward each other, described vibration signal processing mould
Block, tach signal processing module, vibrating sensor and speed probe connect motherboard respectively.
Described vibration signal processing module at least includes vibrating sensor, preposing signal process circuit, program control integration
Circuit, programme-controlled gain amplifying circuit, narrow-band tracking filter circuit and/or fixed gain amplifying circuit, with reality
The conversion of existing vibration signal, filter, the function such as amplification.
Described tach signal processing module at least includes speed probe, preposing signal process circuit, program control integration
Circuit, shaping amplification circuit and/or phase-locking frequency multiplication circuit, to realize the shaping amplification of tach signal, frequency multiplication
The functions such as/frequency dividing.
Described vibrating sensor is piezoelectric acceleration transducer and/or electromagnetic type velocity sensor and/or electricity
Eddy displacement sensor.
Described speed probe is photoelectric tachometric transducer and/or current vortex speed probe.
EZ-UAB chip, described vibration signal processing module and/or tach signal it is provided with on described motherboard
Processing module connects PC main frame by EZ-USB chip.
It is additionally provided with some for connecting at vibration signal processing module and/or tach signal on described motherboard
Reason module module slot, for connect power module power interface, for connect vibrating sensor and/
Or the sensor interface of speed probe and for connecting the PC interface of PC main frame.
Described module slot and/or power interface and/or sensor interface and/or PC interface are USB interface.
The beneficial effects of the utility model are: by use PC main frame be processor, compare traditional mode merit
Can be more powerful, calculate speed faster, man-machine interaction is higher；USB interface-based multi-channel data passes
Defeated, overcome traditional PCI bus and isa bus plug trouble, the shortcoming that expansion slot is wired, there is number
According to transmission at a high speed, hot plug is supported, it is not necessary to external power supply, the advantage that expansion interface is many；At vibration signal
Reason module and/or tach signal processing module use modularity to arrange, simple and reasonable for structure, stable performance,
Measuring accuracy is high and is easily maintained；Use multi-sensor information fusion, improve the balance essence of rigid rotator
Spend and flex rotor can be carried out dynamic balancing.It has simple and reasonable, easy to operate, precision is high,
The feature that efficiency is high.
Accompanying drawing explanation
Fig. 1 is the test system structure block diagram of this utility model one embodiment.
Fig. 2 is the test system structure figure of this utility model one embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment.
Seeing Fig. 1 and Fig. 2, this is for the intelligent Test System of Dynamic Balance of dynamic balancing machine, including motherboard,
Power module, PC main frame, eight vibration signal processing modules, tach signal processing module, vibrations
Sensor and speed probe；Wherein, power module is electrically connected with motherboard, and PC main frame passes through usb bus
Wired connection motherboard；Vibration signal processing module and tach signal processing module are respectively modularity and arrange,
And it is independent toward each other；Vibration signal processing module, tach signal processing module, vibrating sensor and turn
Speed sensor connects motherboard respectively.
Specifically:
Vibration signal processing module: include vibrating sensor, preposing signal process circuit, program control integrating circuit,
Programme-controlled gain amplifying circuit, narrow-band tracking filter circuit and fixed gain amplifying circuit, to realize vibration letter
Number conversion, filter, the function such as amplification.The quantity of vibration signal processing module can according to test need into
Row is arranged, and the structure of each passage is identical, and parameter can be respectively configured, the test system that the present embodiment builds
It is provided with eight vibration signal processing modules.
Tach signal processing module: include speed probe, preposing signal process circuit, program control integrating circuit,
Shaping amplification circuit and phase-locking frequency multiplication circuit, to realize the merits such as the shaping amplification of tach signal, frequency multiplication/frequency dividing
Energy.
Block isolating circuit in tach signal processing module and program control integrating circuit parameter and vibration signal processing mould
Identical in block is in order to eliminate rotation speed change to phase place between vibration, tach signal processing module
The impact of difference.
In order to adapt to different practical application, the vibrating sensor that the test system of the present embodiment is selected
For piezoelectric acceleration transducer, electromagnetic type velocity sensor and eddy current displacement sensor three kinds；Rotating speed
Sensor is photoelectric tachometric transducer and current vortex speed probe two kinds.
EZ-UAB chip, vibration signal processing module and tach signal processing module it is provided with respectively on motherboard
PC main frame is connected by EZ-USB chip.Wherein, EZ-USB chip is based on RAM " soft " system
Solution, it is not necessary to ROM or other solidification memorizer, and only use the journey in EZ-USB chip
Sequence/data RAM, faster, the connection with external devices is simpler for speed.
Nine it are additionally provided with for connecting at eight vibration signal processing modules and a tach signal on motherboard
Reason module module slot, for connect power module power interface, for connect vibrating sensor and
The sensor interface of speed probe and for connecting the PC interface of PC main frame.Module slot, power supply
Interface, sensor interface and PC interface are respectively USB interface.
The signal of each sensor and the voltage of power module are passed to each letter by each slot and each interface by motherboard
Number processing module, passes to each vibration signal processing module by rotating speed frequency-doubled signal, and by A/D sampled data
PC main frame is passed to tach signal.
Vibration signal processing module uses and realizes A/D sample circuit and PC based on USB interface data channel
Connection between main frame.PC main frame is as data processor, and it changes data according to tach signal and A/D
Carry out each programme control circut parameter to arrange, and carry out signal processing and resolving according to tach signal and sampled data,
Try to achieve rotor speed and the size of unbalance mass and orientation.
The signal that different types of vibrating sensor and speed probe can be sent by this utility model simultaneously
Measure；Single-point vibration signal can be measured, it is possible to carry out multimetering simultaneously；Can be according to sensing
Device type and rotating speed size automatically select different integrators, it is possible to automatically select difference according to rotating speed size
The quality factor of programmable analog narrow band tracking filter.
Its concrete operations are as follows:
Vibrating sensor and speed probe input advance signal after recording the correlated current signal of rotor and process
Circuit, the type according to sensor is different, uses the corresponding circuit that processes the DC quantity in signal to be isolated,
And output voltage signal, such as vibration signal processing module, when connecting magnetoelectric velocity transducer
Use in-phase voltage amplifying circuit, act primarily as impedance matching effect；When connecting piezoelectric acceleration transducer
Time, use passive I/V varying circuit, the quantity of electric charge is converted into voltage signal proportional thereto；When even
When connecing eddy current displacement sensor or current vortex speed probe, owing to current vortex sensor generally is equipped with
Special processing module, is converted to suitable voltage signal by vibration displacement amount, it is possible to straight
Connect and be connected with circuit below.The switching of various pre-amplification circuits is realized by electrical switch.Microprocessor
The sensor type used according to test system, controls electrical switch and is accessed by corresponding preposing signal process circuit
Signal processing channel.
Further, above-mentioned voltage signal enters program control integrating circuit, designs in this utility model test system
Quadravalence RC integrating circuit.For harmonic signal, through First-order Integral, its output signal and signal frequency
Rate (rotating speed) ω is inversely proportional to, delayed phase 90 °；Through Second Order Integral, its output signal and signal
Frequency (rotating speed) ω ^2 is inversely proportional to, delayed phase 180 °, analogizes with secondary.Integrating circuit also acts as low
The effect of pass filter, to suppress high-frequency noise to disturb.In order to adapt to the wider range of speeds, this practicality is new
Four kinds of rotating speed gears of integration (low-pass filtering) circuit design of system tested by type.In order to ensure each shelves
Certainty of measurement and the frequent switching of gear when preventing rotating speed to fluctuate between gear, between adjacent gear positions
Rotating speed has some overlapping.In actual application, the order of integrator and gear by microprocessor according to supporting class
Type, sensor type and rotary speed of rotator determine.
Further, obtained vibration signal regulates its amplitude size via programme-controlled gain amplifying circuit, is allowed to
Big as far as possible, to reduce the transformed error in A/D converter.Microprocessor is according to the vibration calculated
The size of signal amplitude is automatically adjusted the gain of programme-controlled gain amplifying circuit.When vibration signal amplitude is more than
Full scale 95% time, gain is turned down by microprocessor by electrical switch；When vibration signal amplitude is less than
Full scale 20% time, gain is tuned up by microprocessor, is allowed to be adapted to follow-up process circuit.
Further, the vibration signal that narrow-band tracking filter circuit extraction amount of unbalance causes, this practicality are used
Novel test system uses programmable switch electric capacity to simulate narrow-band tracking filter circuit, and it is by phase locking frequency multiplying
Circuit, low pass filter, Programable switched capacitor filter form.
Further, by fixed gain amplifying circuit, the output signal of narrow band tracking filter is carried out level
Regulation and fixed gain are amplified, to meet the input requirements of A/D converter.
Further, for accurately obtaining the phase information of amount of unbalance, A/D is started by rotational speed pulse signal
Conversion, i.e. starts sampling by rotor mark position through the pulse edge of speed probe, every to ensure
Group sampled data is that the same angle position from rotor starts.In order to ensure the precision that A/D changes,
Input analog signal sampling is kept before entering the conversion of A/D chip by vibration signal, to reduce because of input
Signal intensity is very fast and causes bigger transformed error.
Further, the vibration information obtained after conversion, it is transferred to PC master via USB interface data channel
Machine, PC main frame carries out signal processing and resolving according to tach signal and sampled data, try to achieve rotor speed and
The size of unbalance mass and orientation, it is achieved the function of this utility model test system.
Above-mentioned for preferred version of the present utility model, be shown and described ultimate principle of the present utility model,
Principal character and advantage of the present utility model.Those skilled in the art is not it should be recognized that this utility model is subject to
Simply illustrating described in the restriction of above-described embodiment, above-described embodiment and description is of the present utility model former
Reason, on the premise of without departing from this utility model spirit and scope, this utility model also has various change
And improvement, in the range of these changes and improvements both fall within claimed this utility model.This utility model
Claimed scope is defined by appending claims and equivalent thereof.
Claims (8)
1. for the intelligent Test System of Dynamic Balance of dynamic balancing machine, including motherboard, power module and
PC main frame, described power module is electrically connected with motherboard, and described PC is host machine wired or wireless connections motherboard；
It is characterized in that: also include some vibration signal processing modules, at least one tach signal processing module,
And some vibrating sensors and/or speed probe；Described vibration signal processing module and tach signal process
Module is respectively modularity and arranges, and independent toward each other, and described vibration signal processing module, rotating speed are believed
Number processing module, vibrating sensor and speed probe connect motherboard respectively.
The most according to claim 1, for the intelligent Test System of Dynamic Balance of dynamic balancing machine, its feature exists
In: described vibration signal processing module at least includes vibrating sensor, preposing signal process circuit, program control integration
Circuit, programme-controlled gain amplifying circuit, narrow-band tracking filter circuit and/or fixed gain amplifying circuit.
The most according to claim 2, for the intelligent Test System of Dynamic Balance of dynamic balancing machine, its feature exists
In: described tach signal processing module at least includes speed probe, preposing signal process circuit, program control integration
Circuit, shaping amplification circuit and/or phase-locking frequency multiplication circuit.
The most according to claim 3, for the intelligent Test System of Dynamic Balance of dynamic balancing machine, its feature exists
It is piezoelectric acceleration transducer and/or electromagnetic type velocity sensor and/or electricity in: described vibrating sensor
Eddy displacement sensor.
The most according to claim 4, for the intelligent Test System of Dynamic Balance of dynamic balancing machine, its feature exists
In: described speed probe is photoelectric tachometric transducer and/or current vortex speed probe.
6. according to described in any one of claim 1-5 for the intelligent Test System of Dynamic Balance of dynamic balancing machine,
It is characterized in that: on described motherboard, be provided with EZ-UAB chip, described vibration signal processing module and/or
Tach signal processing module connects PC main frame by EZ-USB chip.
The most according to claim 6, for the intelligent Test System of Dynamic Balance of dynamic balancing machine, its feature exists
In: it is additionally provided with some for connecting vibration signal processing module and/or tach signal process on described motherboard
The module slot of module, for connect power module power interface, for connect vibrating sensor and/
Or the sensor interface of speed probe and for connecting the PC interface of PC main frame.
The most according to claim 7, for the intelligent Test System of Dynamic Balance of dynamic balancing machine, its feature exists
In: described module slot and/or power interface and/or sensor interface and/or PC interface are USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232811.9U CN205620086U (en) | 2016-03-23 | 2016-03-23 | A intelligent dynamic balance test system for dynamic balancing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232811.9U CN205620086U (en) | 2016-03-23 | 2016-03-23 | A intelligent dynamic balance test system for dynamic balancing machine |
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| CN205620086U true CN205620086U (en) | 2016-10-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109847952A (en) * | 2019-01-25 | 2019-06-07 | 哈尔滨工业大学 | A kind of double-axis centrifuge revolving platform dynamic balance method based on driving current |
-
2016
- 2016-03-23 CN CN201620232811.9U patent/CN205620086U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109847952A (en) * | 2019-01-25 | 2019-06-07 | 哈尔滨工业大学 | A kind of double-axis centrifuge revolving platform dynamic balance method based on driving current |
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