CN103728073B - Operating mechanism separating brake semiaxis snapping force detection system and detection method thereof - Google Patents
Operating mechanism separating brake semiaxis snapping force detection system and detection method thereof Download PDFInfo
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- CN103728073B CN103728073B CN201310697893.5A CN201310697893A CN103728073B CN 103728073 B CN103728073 B CN 103728073B CN 201310697893 A CN201310697893 A CN 201310697893A CN 103728073 B CN103728073 B CN 103728073B
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Abstract
The present invention relates to a kind of operating mechanism separating brake semiaxis snapping force detection system and detection method thereof, this detection system comprises pressure transducer, signal acquisition module, one-chip computer module, photoelectric isolation module, analog switch module, RC filtration module, voltage follow module, V/I modular converter, standard current signal acquisition module, single chip processing module, power module.Operating mechanism separating brake semiaxis snapping power is accepted by pressure transducer, and by heat transfer agent successively through signal acquisition module, one-chip computer module, photoelectric isolation module, analog switch module, RC filtration module, voltage follow module, V/I modular converter, standard current signal acquisition module, single chip processing module, the data finally obtained are separating brake semiaxis snapping power.The present invention detects comparatively simple, reliable, implements more for convenience, is suitable as the detection system detecting existing operating mechanism separating brake semiaxis snapping power and uses, or the improvement of similar detection system.
Description
Technical field
The present invention relates to operating mechanism, especially a kind of operating mechanism separating brake semiaxis snapping force detection system and detection method thereof.
Background technology
Along with high pressure technique development, electric system is constantly to high voltage, remote, Large Copacity future development, therefore the safe operation problem day of electrical network is aobvious outstanding, a large amount of statistics shows, primary cut-out mechanical stability also also exists some problems, and National Power System primary cut-out equipment is refused point, refuse conjunction accident often occurs.Therefore operating mechanism close a floodgate, the reliability of separating brake action and stability most important, directly affect the conveying of electric power, and the safety of electric system.
Keeping and storing up retainable rotating shaft being commonly referred to as semiaxis for closing a floodgate in operating mechanism, under "on" position and gate-dividing state, according to the difference of the position that semiaxis keeps, being called combined floodgate semiaxis and separating brake semiaxis.In separating brake process, the factor affecting separating brake is a lot, such as: the separating brake semiaxis snapping amount size of mechanism, the drive disk assembly of reduction torsion spring and isolating switch.Due to the impact of these factors, institute to produces and refuses a point phenomenon.And, due to the stressed of mechanism and the direction of separating brake snapping power and the singularity of position, abnormal difficult to the detection of separating brake semiaxis snapping power.Simultaneously, the amplitude of variation of snapping power is larger, and the separating brake semiaxis snapping force signal of pressure transducer collection is the signal of millivolt level, the factor that this signal is subject to ectocine is a lot, performance extremely unstable, effectively process so needed to carry out high precision before Signal transmissions is to acquisition system, the signal becoming the direct current standard of 1 ~ 5V or 4 ~ 20mA after process delivers to the acquisition system outside certain distance, so that acquisition system keeps the stability of its image data, thus detect separating brake semiaxis snapping power more accurately.
In view of the importance that separating brake semiaxis snapping power detects, so it is important to seem particularly to the detection that the separating brake semiaxis snapping force signal of operating mechanism is stable, also there is no comparatively simple and reliable technical scheme at present.
Summary of the invention
For overcoming the problems referred to above, the object of the invention is to provide a kind of operating mechanism separating brake semiaxis snapping force detection system and detection method thereof to this area, making it solve existing operating mechanism separating brake semiaxis snapping power and detecting technical matters that is comparatively difficult, that implement inconvenience.Its objective is and to be achieved through the following technical solutions.
A kind of operating mechanism separating brake semiaxis snapping force detection system, this detection system comprises: the pressure transducer detecting separating brake semiaxis snapping power in operating mechanism, receive the signal acquisition module of pressure sensor signal, to the one-chip computer module that the signal of signal acquisition module collection processes, to the photoelectric isolation module that the pulse signal of single-chip microcomputer output processes, receive the analog switch module of the pulse signal after described photoelectric isolation module process, to the RC filtration module that the voltage signal of analog switch module output processes, voltage signal after the process of RC filtration module is carried out to the voltage follow module of buffered, voltage signal after voltage follow module buffering is converted to the V/I modular converter of standard current signal, to the standard current signal acquisition module that the preferred circuit signal after the conversion of V/I modular converter gathers, to the single chip processing module that the signal after the collection of standard current signal acquisition module processes, and to the power module that above-mentioned each module is powered.
Described pressure transducer is installed on the axle head contact induction with separating brake semiaxis in operating mechanism.
Described pressure transducer is ess-strain formula sensor, that is: its scope measured according to the difference of described operating mechanism separating brake semiaxis snapping power its measurement range of self-adaptation, it exports as millivolt level signal.
Acquisition chip in described signal acquisition module is high-precision 24 A/D converter chips.
Described one-chip computer module is with software zeroing function.
The chip of described analog switch module adopts single analog switch chip.
Described RC filtration module adopts two-stage RC filtering circuit.
Described V/I modular converter exports the current signal for two-wire system, and this V/I modular converter is made up of the fixed value resistance of the diode of the amplifier of a single power supply, a PNP triode, an one-way function, two adjustable resistances, some and electric capacity.
Described one-chip computer module is the timer utilizing single-chip microcomputer inside to provide, and obtains the different duration of pulse by the timing initial value changing timer, regulates the dutycycle of waveform, exports pwm pulse signal.
The detection method of this operating mechanism separating brake semiaxis snapping force detection system is: after separating brake semiaxis snapping power experienced by pressure transducer, pressure transducer exports to signal acquisition module millivolt magnitude voltage signals, the millivolt level signal that pressure transducer exports by signal acquisition module sends one-chip computer module to after treatment, data message processes by one-chip computer module, utilize the timer that one-chip computer module inside provides, produce pwm pulse signal and export to photoelectric isolation module, control simulation switch module after pulse signal conversion produces and the related voltage signal of time length by photoelectric isolation module, this voltage signal is through the process of RC filtration module, voltage signal after process is after voltage follow module buffering is stable, send V/I change-over circuit module to, become corresponding standard current signal, this standard current signal delivers to standard current signal acquisition module after certain distance transmission, signal after the collection of standard current signal acquisition module sends single chip processing module to and processes, the data obtained after process are separating brake semiaxis snapping power.
The invention solves existing operating mechanism and detect the technical matters that separating brake snapping power is comparatively difficult, implement inconvenience, there is detection comparatively simple, reliable, implement conveniently feature, be suitable as the detection system detecting existing operating mechanism separating brake semiaxis snapping power to use, or the improvement of similar detection system.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present invention.
Fig. 2 is system architecture block scheme of the present invention.
In figure, the name of sequence number is called: 1, pressure transducer, 2, signal acquisition module, 3, one-chip computer module, 4, photoelectric isolation module, 5, analog switch module, 6, RC filtration module, 7, voltage follow module, 8, V/I modular converter, 9, standard current signal acquisition module, 10, single chip processing module, 11, power module.
Embodiment
By reference to the accompanying drawings, the invention will be further described.
As shown in Figure 1, pressure transducer 1 is installed on operating mechanism installing plate side, for responding to the axle head of separating brake semiaxis.
As shown in Figure 2, operating mechanism separating brake semiaxis snapping force detection system comprises pressure transducer 1, signal acquisition module 2, one-chip computer module 3, photoelectric isolation module 4, analog switch module 5, RC filtration module 6, voltage follow module 7, V/I modular converter 8, standard current signal acquisition module 9, single chip processing module 10, power module 11.
Power module 11 exports 5V voltage accurately, and this voltage provides reference voltage for analog switching circuit.
V/I modular converter 8 exports the 4 ~ 20mA current signal for two-wire system, is made up of in this modular circuit the fixed value resistance of the diode of the amplifier of a single power supply, a PNP triode, a conventional one-way function, two adjustable resistances, more than one quantity and electric capacity.
One-chip computer module is the timer utilizing single-chip microcomputer inside to provide, and obtains the different duration of pulse by the timing initial value changing timer, regulates the dutycycle of waveform, exports pwm pulse signal.
The detection method of this operating mechanism separating brake semiaxis snapping force detection system is: after separating brake semiaxis snapping power experienced by pressure transducer 1, pressure transducer exports to signal acquisition module 2 millivolt magnitude voltage signals, the millivolt level signal that pressure transducer 1 exports by signal acquisition module gives one-chip computer module 3 after treatment, and one-chip computer module 3 pairs of data messages process.The timer that recycling single-chip microcomputer inside provides, produce pwm pulse signal and export to photoelectric isolation module 4, pulse signal is carried out changing rear control simulation switch module 5 and produces related 0 ~ 5V voltage with time length by photoelectric isolation module.This voltage produces 0 corresponding ~ 5V after RC filtration module 6, and this voltage, after voltage follower circuit module 7 buffering is stable, is given V/I modular converter 8, become the 4 ~ 20mA standard current signal meeting industrial standard accordingly.This standard current signal delivers to standard current signal acquisition module 9 after certain distance transmission, in module 9 after filtering, amplify, give single chip processing module 10 after AD conversion and process, after process, corresponding data are separating brake semiaxis snapping power.
Claims (9)
1. an operating mechanism separating brake semiaxis snapping force detection system, it is characterized in that this detection system comprises: the pressure transducer (1) detecting separating brake semiaxis snapping power in operating mechanism, receive the signal acquisition module (2) of pressure sensor signal, to the one-chip computer module (3) that the signal of signal acquisition module collection processes, to the photoelectric isolation module (4) that the pulse signal of single-chip microcomputer output processes, receive the analog switch module (5) of the pulse signal after described photoelectric isolation module process, to the RC filtration module (6) that the voltage signal of analog switch module output processes, voltage signal after the process of RC filtration module is carried out to the voltage follow module (7) of buffered, voltage signal after voltage follow module buffering is converted to the V/I modular converter (8) of standard current signal, to the standard current signal acquisition module (9) that the standard current signal after the conversion of V/I modular converter gathers, to the single chip processing module (10) that the signal after the collection of standard current signal acquisition module processes, and to the power module (11) that above-mentioned each module is powered, described pressure transducer is installed on the axle head contact induction with separating brake semiaxis in operating mechanism.
2. operating mechanism separating brake semiaxis snapping force detection system according to claim 1, it is characterized in that described pressure transducer (1) is for ess-strain formula sensor, that is: its scope measured according to the difference of described operating mechanism separating brake semiaxis snapping power its measurement range of self-adaptation, it exports as millivolt level signal.
3. operating mechanism separating brake semiaxis snapping force detection system according to claim 1, is characterized in that the acquisition chip in described signal acquisition module (2) is high-precision 24 A/D converter chips.
4. operating mechanism separating brake semiaxis snapping force detection system according to claim 1, is characterized in that described one-chip computer module (3) is with software zeroing function.
5. operating mechanism separating brake semiaxis snapping force detection system according to claim 1, is characterized in that the chip of described analog switch module (5) adopts single analog switch chip.
6. operating mechanism separating brake semiaxis snapping force detection system according to claim 1, is characterized in that described RC filtration module (6) adopts two-stage RC filtering circuit.
7. operating mechanism separating brake semiaxis snapping force detection system according to claim 1, it is characterized in that described V/I modular converter (8) exports the current signal for two-wire system, this V/I modular converter is made up of the fixed value resistance of the diode of the amplifier of a single power supply, a PNP triode, an one-way function, two adjustable resistances, some and electric capacity.
8. operating mechanism separating brake semiaxis snapping force detection system according to claim 1, it is characterized in that described one-chip computer module (3) is the timer utilizing single-chip microcomputer inside to provide, the different duration of pulse is obtained by the timing initial value changing timer, regulate the dutycycle of waveform, export pwm pulse signal.
9. the detection method of an operating mechanism separating brake semiaxis snapping force detection system as claimed in claim 1, it is characterized in that: after separating brake semiaxis snapping power experienced by pressure transducer (1), pressure transducer exports to signal acquisition module (2) millivolt magnitude voltage signals, the millivolt level signal that pressure transducer exports by signal acquisition module sends one-chip computer module (3) after treatment to, data message processes by one-chip computer module, utilize the timer that one-chip computer module inside provides, produce pwm pulse signal and export to photoelectric isolation module (4), control simulation switch module (5) after pulse signal conversion is produced the voltage signal relevant to time length by photoelectric isolation module, this voltage signal processes through RC filtration module (6), voltage signal after process is after voltage follow module (7) buffering is stable, send V/I modular converter (8) to, become corresponding standard current signal, this standard current signal delivers to standard current signal acquisition module (9) after certain distance transmission, signal after the collection of standard current signal acquisition module sends single chip processing module (10) to and processes, the data obtained after process are separating brake semiaxis snapping power.
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| CN201310697893.5A CN103728073B (en) | 2013-12-17 | 2013-12-17 | Operating mechanism separating brake semiaxis snapping force detection system and detection method thereof |
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| CN201310697893.5A CN103728073B (en) | 2013-12-17 | 2013-12-17 | Operating mechanism separating brake semiaxis snapping force detection system and detection method thereof |
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| CN103728073A CN103728073A (en) | 2014-04-16 |
| CN103728073B true CN103728073B (en) | 2016-01-06 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105489411B (en) * | 2016-01-22 | 2018-10-26 | 厦门理工学院 | A kind of intelligent operating mechanism of breaker |
| CN105510824B (en) * | 2016-01-28 | 2018-07-31 | 云南电网有限责任公司电力科学研究院 | A kind of high-voltage breaker operation mechanism monitoring method and system |
Citations (4)
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| EP0504731A2 (en) * | 1991-03-19 | 1992-09-23 | Japan Electronics Industry, Ltd. | Device for measuring action force of wheel and device for measuring stress of structure |
| CN101482108A (en) * | 2008-01-08 | 2009-07-15 | 中国有色集团沈阳冶金机械有限公司 | Pressure detection system and method for membrane pump |
| CN201541258U (en) * | 2009-07-24 | 2010-08-04 | 徐州宝迪电气有限公司 | CAN isolation repeater for pressure detecting system of hydraulic support |
| CN103063342A (en) * | 2012-12-28 | 2013-04-24 | 深圳职业技术学院 | Pressure detecting device and pressure detecting system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184604A (en) * | 1994-12-28 | 1996-07-16 | Tokin Corp | Impact detector and security system using the same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0504731A2 (en) * | 1991-03-19 | 1992-09-23 | Japan Electronics Industry, Ltd. | Device for measuring action force of wheel and device for measuring stress of structure |
| CN101482108A (en) * | 2008-01-08 | 2009-07-15 | 中国有色集团沈阳冶金机械有限公司 | Pressure detection system and method for membrane pump |
| CN201541258U (en) * | 2009-07-24 | 2010-08-04 | 徐州宝迪电气有限公司 | CAN isolation repeater for pressure detecting system of hydraulic support |
| CN103063342A (en) * | 2012-12-28 | 2013-04-24 | 深圳职业技术学院 | Pressure detecting device and pressure detecting system |
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Effective date of registration: 20151123 Address after: Langxia street Xinlanglu Yuyao city 315408 Zhejiang city of Ningbo province No. 216 Applicant after: Ningbo Shunli High-Voltage Switch Science & Technology Co., Ltd. Address before: 315400, Ningbo, Zhejiang, Yuyao Province, 749 new North Road, Ningbo high voltage switch Technology Co., Ltd. Applicant before: Hu Guangfu |
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Effective date of registration: 20220209 Address after: 315408 No. 216, Weisan Road, Langxia street, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Ningbo jianrun electromechanical Co.,Ltd. Address before: 315408 No. 216, Xinlang Road, Langxia street, Yuyao City, Ningbo City, Zhejiang Province Patentee before: NINGBO SHUNLI HIGH VOLTAGE SWITCHGEAR TECHNOLOGY CO.,LTD. |