CN202599609U - Field dynamic balancer - Google Patents
Field dynamic balancer Download PDFInfo
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- CN202599609U CN202599609U CN 201220181687 CN201220181687U CN202599609U CN 202599609 U CN202599609 U CN 202599609U CN 201220181687 CN201220181687 CN 201220181687 CN 201220181687 U CN201220181687 U CN 201220181687U CN 202599609 U CN202599609 U CN 202599609U
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Abstract
The utility model relates to a field dynamic balancer, which comprises two vibration sensors, a photoelectric rotating speed sensor, signal processing equipment and computing equipment, wherein the two vibration sensors are used for acquiring mechanical vibration signals on a same axle system of tested equipment; the photoelectric rotating speed sensor is used for acquiring rotating speed signals of the axle system; the signal processing equipment is used for carrying out analog signal processing on the mechanical vibration signals and converting the mechanical vibration signals into digital signals and comprises two signal processing channels corresponding to the two vibration sensors, wherein the two signal processing channels are respectively connected with the two vibration sensors; the signal processing equipment further comprises an acquisition control channel for acquiring the rotating speed signals, wherein the acquisition control channel is connected with the photoelectric rotating speed sensor and the two signal processing channels; and the computing equipment is connected with the two signal processing channels and the acquisition control channel. The field dynamic balancer disclosed by the utility model can better ensure the accuracy of equipment fault analysis.
Description
Technical field
The utility model relates to the fault detection technique field, relates in particular to a kind of spot dynamic balance instrument.
Background technology
Comprising a large amount of parts that rotate in the conventional machinery; The rotor of for example various transmission shafts, main shaft, motor and steam turbine etc.; When not rotating, the pressure that bearing is produced is the same to parts when rotated in ideal conditions, and this is that parts are balances.But in reality, because the error that produces in the inhomogeneous or blank defective of material, processing and the assembling, even just has multiple factor such as asymmetrical geometric configuration during design; Make parts when rotated, the centrifugal intertia force that each small particle produces on it can not be cancelled out each other, and centrifugal intertia force affacts on machinery and the basis thereof through bearing; Cause vibration, produced noise, quicken bearing wear; Shorten mechanical life, can damage incidents when serious., must analyze, so that it reaches the balance accuracy grade of permission the equilibrium state of rotor for this reason.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of spot dynamic balance instrument, guarantees the accuracy of spot dynamic balance instrument analytical equipment fault.
To achieve these goals, the utility model provides a kind of spot dynamic balance instrument, comprising:
Be used to obtain two vibration transducers of the mechanical oscillation signal that the same axle of equipment under test fastens;
Be used to obtain the photoelectric sensor of the rotational speed signal of said axle system;
Be used for said mechanical oscillation signal is carried out ASH and said mechanical oscillation signal converted into the signal handling equipment of digital signal; Comprise and corresponding two signal processing channels of said two vibration transducers that said two signal processing channels are connected with said photoelectric sensor with said two vibration transducers respectively;
Be used for said two signal processing channels being controlled and said two vibration transducers being controlled to guarantee said two vibration transducer parallel acquisitions and the computing equipment of same-phase collection to carry out synchro control and said digital signal is handled, be connected with said two signal processing channels with said two vibration transducers according to the type of said mechanical oscillation signal.
Above-mentioned the utility model embodiment controls to guarantee two vibration transducer parallel acquisitions and same-phase collection two vibration transducers through computing equipment, has guaranteed that data are errorless continuously in continual data acquisition; The mechanical oscillation signal of two passages adopts two signal processing channel independent parallels to handle, and has avoided the phase mutual interference between the signal; Can control (for example: high pass, low pass, integration, enlargement factor, envelope, anti-mixing) according to the type of mechanical oscillation signal to two signal processing channels through computing equipment; Thereby make signal cleaner; Especially when weak signal is handled, guaranteed the accuracy of spot dynamic balance instrument analytical equipment fault more.
According to following with reference to accompanying drawing to detailed description of illustrative embodiments, it is clear that further feature of the utility model and aspect will become.
Description of drawings
The accompanying drawing that is included in the instructions and constitutes the part of instructions shows exemplary embodiment, characteristic and the aspect of the utility model with instructions, and is used to explain the principle of the utility model.
The structural representation of the spot dynamic balance instrument that Fig. 1 provides for embodiment of the utility model.
Embodiment
Below will specify various exemplary embodiments, characteristic and the aspect of the utility model with reference to accompanying drawing.The identical same or analogous element of Reference numeral presentation function in the accompanying drawing.
The structural representation of the spot dynamic balance instrument that Fig. 1 provides for embodiment of the utility model.As shown in Figure 1, spot dynamic balance instrument 100 comprises: vibration transducer 101, vibration transducer 102, photoelectric sensor 11, signal handling equipment 12, computing equipment 13; Wherein, Signal handling equipment 12 comprises and vibration transducer 101, vibration transducer 102 difference corresponding two signal processing channels (signal processing channel 121, signal processing channel 122) and acquisition controlling passages 123; Signal processing channel 121, signal processing channel 122 are connected with vibration transducer 101, vibration transducer 102 respectively, and acquisition controlling passage 123 is connected with photoelectric sensor 11; Computing equipment 13 is connected with vibration transducer 101, vibration transducer 102, signal processing channel 121, signal processing channel 122, photoelectric sensor 11, and signal handling equipment 12 also is connected with photoelectric sensor 11.
Further, computing equipment 13 comprises: first control module 131, second control module 132, processing unit 133, failure diagnosis unit 134; Wherein, first control module 131 is connected with signal processing channel 121, signal processing channel 122; Second control module 132 is connected with vibration transducer 101, vibration transducer 102; Processing unit 133 is connected with signal processing channel 121, signal processing channel 122; Failure diagnosis unit 134 is connected with acquisition controlling passage 123.
Particularly, vibration transducer 101, vibration transducer 102 obtain the same mechanical oscillation signal of fastening of equipment under test; Photoelectric sensor 11 obtains the rotational speed signal that said axle is; Signal processing channel 121,122 pairs of said mechanical oscillation signals of signal processing channel carry out ASH and convert said mechanical oscillation signal into digital signal; First control module 131 is controlled signal processing channel 121, signal processing channel 122 according to the type of said mechanical oscillation signal; 132 pairs of vibration transducers 101 of second control module, vibration transducer 102 are controlled guaranteeing vibration transducer 101, vibration transducer 102 parallel acquisitions and same-phase collection, thereby carry out synchro control and said digital signal is handled; 133 pairs of said digital signals of processing unit are handled; Failure diagnosis unit 134 is diagnosed the rotor and the fault of eccentricity of said equipment under test according to said rotational speed signal.
The spot dynamic balance instrument that the utility model provides; Control to guarantee vibration transducer 101, vibration transducer 102 parallel acquisitions and same-phase collection through 13 pairs of vibration transducers 101 of computing equipment, vibration transducer 102, guaranteed that data are errorless continuously in continual data acquisition; The mechanical oscillation signal of two passages adopts signal processing channel 121, signal processing channel 122 independent parallels to handle, and has avoided the phase mutual interference between the signal; Can control (for example: high pass, low pass, integration, enlargement factor, envelope, anti-mixing) according to the type of mechanical oscillation signal to signal processing channel 121, signal processing channel 122 through computing equipment 13; Thereby make signal cleaner; Especially when weak signal is handled, guaranteed the accuracy of spot dynamic balance instrument analytical equipment fault more.
Further, above-mentioned embodiment illustrated in fig. 1 in, each said signal processing channel comprises:
Be used for said mechanical oscillation signal is carried out the Hi-pass filter of high-pass filtering, be connected with a said vibration transducer;
Be used for the said mechanical oscillation signal after the high-pass filtering is carried out the low-pass filter of LPF, be connected with said Hi-pass filter;
Be used for the said mechanical oscillation signal behind the LPF is carried out the integrator of integration, be connected with said low-pass filter;
Be used for gain amplifier that the said mechanical oscillation signal behind the integration is gained and amplifies, be connected with said integrator;
Said mechanical oscillation signal after being used for amplifying converts the analog to digital converter of digital signal into, is connected with said gain amplifier.
Further, above-mentioned embodiment illustrated in fig. 1 in, acquisition controlling passage 123 comprises:
Be used to control the sequential logic control module of the switching rate of said analog to digital converter, be connected with said analog to digital converter;
Select to gather and count thereby be used to control said sequential logic control module, be connected with said speed probe with said timer conter to reach the acquisition controlling unit of preset numerical precision.
Further, above-mentioned embodiment illustrated in fig. 1 in, integrator specifically can comprise: do not add integrator, add one-time amplifier, add two-time amplifier.
Further, above-mentioned embodiment illustrated in fig. 1 in, gain amplifier has 1～128 times enlargement factor.
What need statement is that above-mentioned utility model content and embodiment only are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the qualification to the utility model protection domain.Those skilled in the art are in the spirit and principle of the utility model, when doing various modifications, being equal to replacement or improvement.The protection domain of the utility model is as the criterion with appended claims.
Claims (5)
1. a spot dynamic balance instrument is characterized in that, comprising:
Be used to obtain two vibration transducers of the mechanical oscillation signal that the same axle of equipment under test fastens;
Be used to obtain the photoelectric sensor of the rotational speed signal of said axle system;
Be used for said mechanical oscillation signal is carried out ASH and said mechanical oscillation signal converted into the signal handling equipment of digital signal; Comprise and corresponding two signal processing channels of said two vibration transducers that said two signal processing channels are connected with said two vibration transducers respectively; Said signal handling equipment also comprises an acquisition controlling passage that is used to gather rotational speed signal, is connected with said two signal processing channels with said photoelectric sensor;
With the computing equipment that said two signal processing channels are connected with said acquisition controlling passage, said computing equipment comprises:
Be used for first control module said two signal processing channels controlled according to the type of said mechanical oscillation signal, be connected with said two signal processing channels;
Be used for said two vibration transducers are controlled second control module to guarantee that said two vibration transducer parallel acquisitions and same-phase are gathered, be connected with said two vibration transducers;
Be used for processing unit that said digital signal is handled, be connected with two signal processing channels;
Be used for diagnosing the failure diagnosis unit of the rotor and the fault of eccentricity of said equipment under test, be connected with said acquisition controlling passage according to said rotational speed signal.
2. spot dynamic balance instrument according to claim 1 is characterized in that, each said signal processing channel comprises:
Be used for said mechanical oscillation signal is carried out the Hi-pass filter of high-pass filtering, be connected with a said vibration transducer;
Be used for the said mechanical oscillation signal after the high-pass filtering is carried out the low-pass filter of LPF, be connected with said Hi-pass filter;
Be used for the said mechanical oscillation signal behind the LPF is carried out the integrator of integration, be connected with said low-pass filter;
Be used for gain amplifier that the said mechanical oscillation signal behind the integration is gained and amplifies, be connected with said integrator;
Said mechanical oscillation signal after being used for amplifying converts the analog to digital converter of digital signal into, is connected with said gain amplifier.
3. spot dynamic balance instrument according to claim 2 is characterized in that, said integrator comprises: do not add integrator, add one-time amplifier, add two-time amplifier.
4. spot dynamic balance instrument according to claim 2 is characterized in that said gain amplifier has 1～128 times enlargement factor.
5. according to the arbitrary described spot dynamic balance instrument of claim 1～4, it is characterized in that said acquisition controlling passage comprises:
Be used to control the sequential logic control module of the switching rate of said analog to digital converter, be connected with said analog to digital converter;
Select to gather and count thereby be used to control said sequential logic control module, be connected with said speed probe with said timer conter to reach the acquisition controlling unit of preset numerical precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181687 CN202599609U (en) | 2012-04-25 | 2012-04-25 | Field dynamic balancer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181687 CN202599609U (en) | 2012-04-25 | 2012-04-25 | Field dynamic balancer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599609U true CN202599609U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220181687 Expired - Lifetime CN202599609U (en) | 2012-04-25 | 2012-04-25 | Field dynamic balancer |
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| Country | Link |
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| CN (1) | CN202599609U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162906A (en) * | 2013-01-22 | 2013-06-19 | 北京航空航天大学 | Device used for on-line monitoring dynamic balance of rotating machine |
| CN105513651A (en) * | 2015-11-25 | 2016-04-20 | 中广核工程有限公司 | Nuclear reactor cooling pump vibration phase signal acquisition method and system thereof |
| CN109406053A (en) * | 2018-12-06 | 2019-03-01 | 浙江大学 | Without duplicate removal rotor dynamic balancing method |
-
2012
- 2012-04-25 CN CN 201220181687 patent/CN202599609U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162906A (en) * | 2013-01-22 | 2013-06-19 | 北京航空航天大学 | Device used for on-line monitoring dynamic balance of rotating machine |
| CN103162906B (en) * | 2013-01-22 | 2016-01-20 | 北京航空航天大学 | A kind of for the dynamically balanced equipment of on-line monitoring rotating machinery |
| CN105513651A (en) * | 2015-11-25 | 2016-04-20 | 中广核工程有限公司 | Nuclear reactor cooling pump vibration phase signal acquisition method and system thereof |
| WO2017088215A1 (en) * | 2015-11-25 | 2017-06-01 | 中广核工程有限公司 | Method and system for collecting vibration phase signal of nuclear reactor cooling pump |
| GB2559541A (en) * | 2015-11-25 | 2018-08-15 | China Nuclear Power Eng Company Ltd | Method and system for collecting vibration phase signal of nuclear reactor cooling pump |
| CN109406053A (en) * | 2018-12-06 | 2019-03-01 | 浙江大学 | Without duplicate removal rotor dynamic balancing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
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| CX01 | Expiry of patent term |