CN103162961A - Analysis circuit of vibration measurer signal - Google Patents
Analysis circuit of vibration measurer signal Download PDFInfo
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- CN103162961A CN103162961A CN2013100461696A CN201310046169A CN103162961A CN 103162961 A CN103162961 A CN 103162961A CN 2013100461696 A CN2013100461696 A CN 2013100461696A CN 201310046169 A CN201310046169 A CN 201310046169A CN 103162961 A CN103162961 A CN 103162961A
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Abstract
The invention discloses an analysis circuit, in particular to the analysis circuit of a vibration measurer signal used in the process of bearing testing. The analysis circuit of the vibration measurer signal comprises a filter circuit and logical operation chips, wherein a current protection circuit and a voltage protection circuit are arranged in front of the filter circuit, the filter circuit is connected with the two logical operation chips, and the logical operation chips are respectively connected with a relay control circuit and a buzzer alarm circuit. The filter circuit comprises circuits with three frequency bands, triodes which are in the relay control circuit and in the buzzer alarm circuit are in a switch-off state, and protective resistors and the like are respectively connected at two ends of the triodes. The analysis circuit of the vibration measurer signal has the advantages that in the process of the bearing measurement, whether a bearing is qualified or not can be quickly judged without the need of observation of the degree or a signal indicator light, and various automatic signals can be output to conduct judgment according to any requirements. The analysis circuit of the vibration measurer signal can be widely applied to the detection process of bearings.
Description
Technical field
The present invention relates to a kind of analysis circuit, specifically refer to a kind of analysis circuit that is used in vialog signal in the bearing test process.
Background technology
Producer strengthens the requirement of bear vibration quality along with Production of bearing in recent years, no matter manufacturer, or use producer or the dealer of bearing, its instrument popular style and practicality have obtained vast bearing user's approval substantially, and instrument is differentiated reading stability, reliability and efficient, also day aobvious the giving prominence to along with the needs that use producer.Along with human resources are day by day in short supply, production cost is growing, and bear vibration is measured in quality control, and indispensable in the grade separation detection, and the demand of judgement and automatic measurement is more and more fast.The method of Quick Measurement was mainly first the Quick Measurement function in instrument to be arranged the variation of then observing three frequency range measuring state pilot lamp in the process of measuring in the past, if three lamps are simultaneously for green represent that bearing is qualified, simplified to a certain extent the requirement to reading, but the staff will see material loading, the loading of bearing in the process of operation, the state of the pilot lamp of observation three frequency ranges after completing, constantly coming back bows makes operating personnel be very easy to fatigue.Usually just with sensation, blind operation is carried out in very mechanical material loading, loading action, and be not very dangerous by visual inspection with the sensation material loading on the main shaft of High Rotation Speed, affected the safety of producing.
In order to solve the problem of above-mentioned existence, this patent design guaranteeing in the service-strong situation, and the signal of three frequency range Quick Measurements is taken out, and carries out logical operation, and operation result is exported.As long as it is defective differentiating bearing when having the signal of a frequency range to be defective.Drive hummer and send continuous alarm sound, survey crew does not just need the state of viewing lamp just can know whether bearing is qualified.In order to realize transfer matic test needs, circuit can also drive the action of relay, with the formal output of signal with switch, can satisfy any type of signal output of full-automatic vibration measuring instrument.
Summary of the invention
The present invention is directed to deficiency of the prior art, propose a kind of circuit that can better detect bearing.
The present invention is achieved by following technical proposals:
A kind of analysis circuit of vialog signal, it comprises filtering circuit, logical operation chip; It is characterized in that in the filtering circuit front, holding circuit being arranged, holding circuit comprises current protecting circuit and voltage protection circuit; Filtering circuit is connected with two logical operation chips, and the logical operation chip is connected with control relay circuit, buzzer alarm circuit respectively;
Wherein, filtering circuit comprise three frequency ranges circuit, the frequency that is respectively high-band filtering is 1800Hz-10KHz, middle frequency with filtering is 300Hz-1800Hz, the frequency of low strap filtering is 50Hz-300Hz; In the present invention, the fragmentation procedure of so-called three frequency ranges is relative processes, and high-band filter filter refers to the situation higher than 1800Hz, and middle band filtering refers to greater than 300Hz, does not exceed the situation of 1800Hz, and low strap filtering refers to not exceed the situation of 300Hz;
The base stage of the triode Q1 that is in the switch cut-off state in one of them logical operation chip and control relay circuit is connected, the collector of triode Q1 is connected with power lead, and the collector resistance R8 that connects, be connected with resistance R 9 and R10 between triode Q1 and triode Q2, triode Q1 is connected with ground wire jointly with the emitter of triode Q2; The collector of triode Q2 is connected with relay, and the other end of relay is connected with power lead, by the relay control switch state;
The base stage of the triode Q3 that is in the switch cut-off state in another logical operation chip and buzzer alarm circuit is connected, and the emitter of triode Q3 is connected with ground wire, is connected with ground wire after the base stage contact resistance R14 of triode Q3; The collector of triode Q3 is connected with loudspeaker, and the other end of loudspeaker is connected with power lead by swept resistance R15.
As preferably, in the analysis circuit of above-mentioned a kind of vialog signal, the current protecting circuit of high-band filtering circuit is comprised of diode D1 and resistance R 1, and voltage protection circuit is diode D4; Middle current protecting circuit with filtering circuit is comprised of diode D2 and resistance R 2, and voltage protection circuit is diode D5; The current protecting circuit of low strap filtering circuit is comprised of diode D3 and resistance R 3, and voltage protection circuit is diode D6.
As preferably, the filtering circuit in the analysis circuit of above-mentioned a kind of vialog signal is the RC wave filter, and the RC wave filter is also at present comparatively common, with low cost, and stable performance is easy to use.
As preferably, a protective resistance R7 is arranged between logical operation chip and triode Q2 in the analysis circuit of above-mentioned a kind of vialog signal, a protective resistance R13 is arranged between logical operation chip and triode Q3; By the use of protective resistance, can guarantee that triode is avoided than the impact of heavy current and impaired.
In the present invention, after surveying instrument started, the logic output state of electronic box was measured in the real-time detection of circuit, represented to have defective when high level output having been detected, and hummer starts, the actuating of relay.After signal relief, hummer stops automatically, and relay resets.
D1, D2, D3 prevent that for the protection diode circuit signal from affecting prime, and measurement result is impacted.D4, D5, D6 are voltage stabilizing diode, prevent the too high logical operation chip that burns out of output voltage.R1, R3, R5, be current-limiting resistance, prevent that electric current is excessive, the mimic channel output current is larger, and the needed electric current of logical operation circuit input is very little, and the excessive chip that may burn out of electric current also can impact the stability of front stage circuits simultaneously.C1, C2, C3 and R2, R4, R6 form RC circuit filtering interfering dither signal, prevent that wrong output signal from appearring in the rub-out signal input.Bearing easily produces in the loading of testing and uninstall process and impacts, and meeting produces the shake of circuit signal in the process of impacting, so the filtering wave by prolonging time circuit must be arranged with the undesired signal filtering.Disturbing if the time is too short can not filtering, if the long efficient that at first can affect instrument work of delay time, and the output signal of mistake could appear.If it is defective that last cover bearing detects in test process, alerting signal will keep a period of time when surveying next cover bearing, and the tester can think that the second cover is also underproof bearing.The value of RC is mainly considered timeconstantτ, and delay time is approximately 0.2S, τ=RC.R7, R8, Q1 form output driving circuit, and R9, R10, Q2 form a not gate, mainly play the logic matching effect, and the working time that shortens relay extends relay life.If do not add not gate the qualified relay of bearing keeps attracting state, disconnect when there being defective bearing relay to occur, it is generally acknowledged that most of bearing should be still qualified, relay is in attracting state always can shorten relay serviceable life.R13, R14, Q3 drive and control hummer work, and R15 is a variable resistor, mainly work the volume limitations current protection hummer effect of regulating.
Beneficial effect: in the testing process of bearing, need not observed reading or signal lamp, can judge fast whether bearing is qualified; Can judge according to the various automatic signals of any requirement output again.
Description of drawings
Fig. 1 electrical block diagram of the present invention
Embodiment
The below illustrates enforcement of the present invention:
Embodiment 1
1, as shown in Figure 1 structure connects the analysis circuit of a vialog signal, and it comprises filtering circuit, logical operation chip; Wherein in the filtering circuit front, holding circuit is arranged, holding circuit comprises that current protecting circuit and voltage protection circuit form; Filtering circuit is connected with two logical operation chips, and the logical operation chip is connected with control relay circuit, buzzer alarm circuit respectively; In the present embodiment, filtering circuit is the RC wave filter;
Wherein, filtering circuit comprise three frequency ranges circuit, the frequency that is respectively high-band filtering is 2000Hz, middle frequency with filtering is 500Hz, the frequency of low strap filtering is 80Hz; The current protecting circuit of high-band filtering circuit is comprised of diode D1 and resistance R 1, and voltage protection circuit is diode D4; Middle current protecting circuit with filtering circuit is comprised of diode D2 and resistance R 2, and voltage protection circuit is diode D5; The current protecting circuit of low strap filtering circuit is comprised of diode D3 and resistance R 3, and voltage protection circuit is diode D6; The base stage of the triode Q1 that is in the switch cut-off state in another logical operation chip and control relay circuit is connected, the collector of triode Q1 is connected with power lead, and the collector resistance R8 that connects, be connected with resistance R 9 and R10 between triode Q1 and triode Q2, triode Q1 is connected with ground wire jointly with the emitter of triode Q2; The collector of triode Q2 is connected with relay, and the other end of relay is connected with power lead, by the relay control switch state;
The base stage of the triode Q3 that is in the switch cut-off state in another logical operation chip and buzzer alarm circuit is connected, and the emitter of triode Q3 is connected with ground wire, is connected with ground wire after the base stage contact resistance R14 of triode Q3; The collector of triode Q3 is connected with loudspeaker, and the other end of loudspeaker is connected with power lead by swept resistance R15.
For the normal operation of holding circuit better, a protective resistance R7 is arranged between logical operation chip and triode Q2, a protective resistance R13 is arranged between logical operation chip and triode Q3.
After surveying instrument started, the logic output state of electronic box was measured in the real-time detection of circuit, represented to have defective when high level output having been detected, and hummer starts, the actuating of relay.After signal relief, hummer stops automatically, and relay resets.
D1, D2, D3 prevent that for the protection diode circuit signal from affecting prime, and measurement result is impacted.D4, D5, D6 are voltage stabilizing diode, prevent the too high logical operation chip that burns out of output voltage.R1, R3, R5, be current-limiting resistance, prevent that electric current is excessive, the mimic channel output current is larger, and the needed electric current of logical operation circuit input is very little, and the excessive chip that may burn out of electric current also can impact the stability of front stage circuits simultaneously.C1, C2, C3 and R2, R4, R6 form RC circuit filtering interfering dither signal, prevent that wrong output signal from appearring in the rub-out signal input.Bearing easily produces in the loading of testing and uninstall process and impacts, and meeting produces the shake of circuit signal in the process of impacting, so the filtering wave by prolonging time circuit must be arranged with the undesired signal filtering.Disturbing if the time is too short can not filtering, if the long efficient that at first can affect instrument work of delay time, and the output signal of mistake could appear.If it is defective that last cover bearing detects in test process, alerting signal will keep a period of time when surveying next cover bearing, and the tester can think that the second cover is also underproof bearing.The value of RC is mainly considered timeconstantτ, and delay time is approximately 0.2 second, τ=RC.R7, R8, Q1 form output driving circuit, and R9, R10, Q2 form a not gate, mainly play the logic matching effect, and the working time that shortens relay extends relay life.If do not add not gate the qualified relay of bearing keeps attracting state, disconnect when there being defective bearing relay to occur, it is generally acknowledged that most of bearing should be still qualified, relay is in attracting state always can shorten relay serviceable life.R13, R14, Q3 drive and control hummer work, and R15 is a variable resistor, mainly work the volume limitations current protection hummer effect of regulating.
The circuit identical according to embodiment 1, adopting the frequency of high-band filtering is 2500Hz, and middle frequency with filtering is 800Hz, and the frequency of low strap filtering is 100Hz; The present embodiment is implemented, can be obtained the good result identical with embodiment 1.
Embodiment 3
The circuit identical according to embodiment 1, adopting the frequency of high-band filtering is 5000Hz, and middle frequency with filtering is 1500Hz, and the frequency of low strap filtering is 200Hz; The present embodiment is implemented, can be obtained the good result identical with embodiment 1.
Claims (4)
1. the analysis circuit of a vialog signal, it comprises filtering circuit, logical operation chip; It is characterized in that in the filtering circuit front, holding circuit being arranged, holding circuit comprises current protecting circuit and voltage protection circuit; Filtering circuit is connected with two logical operation chips, and the logical operation chip is connected with control relay circuit, buzzer alarm circuit respectively;
Wherein, filtering circuit comprise three frequency ranges circuit, the frequency that is respectively high-band filtering is 1800Hz-10KHz, middle frequency with filtering is 300Hz-1800Hz, the frequency of low strap filtering is 50Hz-300Hz;
The base stage of the triode Q1 that is in the switch cut-off state in one of them logical operation chip and control relay circuit is connected, the collector of triode Q1 is connected with power lead, and the collector resistance R8 that connects, be connected with resistance R 9 and R10 between triode Q1 and triode Q2, triode Q1 is connected with ground wire jointly with the emitter of triode Q2; The collector of triode Q2 is connected with relay, and the other end of relay is connected with power lead, by the relay control switch state;
The base stage of the triode Q3 that is in the switch cut-off state in another logical operation chip and buzzer alarm circuit is connected, and the emitter of triode Q3 is connected with ground wire, is connected with ground wire after the base stage contact resistance R14 of triode Q3; The collector of triode Q3 is connected with loudspeaker, and the other end of loudspeaker is connected with power lead by swept resistance R15.
2. the analysis circuit of a kind of vialog signal according to claim 1, is characterized in that the current protecting circuit of high-band filtering circuit is comprised of diode D1 and resistance R 1, and voltage protection circuit is diode D4; Middle current protecting circuit with filtering circuit is comprised of diode D2 and resistance R 2, and voltage protection circuit is diode D5; The current protecting circuit of low strap filtering circuit is comprised of diode D3 and resistance R 3, and voltage protection circuit is diode D6.
3. the analysis circuit of a kind of vialog signal according to claim 1, is characterized in that filtering circuit is the RC wave filter.
4. the analysis circuit of a kind of vialog signal according to claim 1, is characterized in that a protective resistance R7 is arranged between logical operation chip and triode Q2, and a protective resistance R13 is arranged between logical operation chip and triode Q3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100461696A CN103162961A (en) | 2013-02-06 | 2013-02-06 | Analysis circuit of vibration measurer signal |
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| CN2013100461696A CN103162961A (en) | 2013-02-06 | 2013-02-06 | Analysis circuit of vibration measurer signal |
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| CN2013100461696A Pending CN103162961A (en) | 2013-02-06 | 2013-02-06 | Analysis circuit of vibration measurer signal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643448A (en) * | 2017-10-26 | 2018-01-30 | 北京广利核系统工程有限公司 | Megger test detection means and detection method |
| CN108509306A (en) * | 2018-05-22 | 2018-09-07 | 郑州云海信息技术有限公司 | A kind of GPU simulators |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1340472A (en) * | 1971-08-20 | 1973-12-12 | Itt | Noise discrimination apparatus |
| CN1164705A (en) * | 1997-01-31 | 1997-11-12 | 浙江大学 | Large rotating machine set on line state monitoring and fault detecting system |
| CN1487272A (en) * | 2003-08-28 | 2004-04-07 | 北京航空航天大学 | Multiple-parameter vibration measuring pen |
| CN2757144Y (en) * | 2004-09-15 | 2006-02-08 | 西北工业大学 | Fault hidden trouble detector |
| CN203178073U (en) * | 2013-02-06 | 2013-09-04 | 杭州轴承试验研究中心有限公司 | Vibration meter signal analysis circuit |
-
2013
- 2013-02-06 CN CN2013100461696A patent/CN103162961A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1340472A (en) * | 1971-08-20 | 1973-12-12 | Itt | Noise discrimination apparatus |
| CN1164705A (en) * | 1997-01-31 | 1997-11-12 | 浙江大学 | Large rotating machine set on line state monitoring and fault detecting system |
| CN1487272A (en) * | 2003-08-28 | 2004-04-07 | 北京航空航天大学 | Multiple-parameter vibration measuring pen |
| CN2757144Y (en) * | 2004-09-15 | 2006-02-08 | 西北工业大学 | Fault hidden trouble detector |
| CN203178073U (en) * | 2013-02-06 | 2013-09-04 | 杭州轴承试验研究中心有限公司 | Vibration meter signal analysis circuit |
Non-Patent Citations (1)
| Title |
|---|
| 王勇: "滚动轴承振动信号在线分析系统", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》, no. 09, 15 September 2011 (2011-09-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643448A (en) * | 2017-10-26 | 2018-01-30 | 北京广利核系统工程有限公司 | Megger test detection means and detection method |
| CN108509306A (en) * | 2018-05-22 | 2018-09-07 | 郑州云海信息技术有限公司 | A kind of GPU simulators |
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Application publication date: 20130619 |