CN103983448A - Mechanical property on-line detecting device - Google Patents
Mechanical property on-line detecting device Download PDFInfo
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- CN103983448A CN103983448A CN201410227949.5A CN201410227949A CN103983448A CN 103983448 A CN103983448 A CN 103983448A CN 201410227949 A CN201410227949 A CN 201410227949A CN 103983448 A CN103983448 A CN 103983448A
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- mechanical property
- link gear
- displacement sensor
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- operation insulator
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention relates to a mechanical property on-line detecting device which comprises an operation insulator, a linkage mechanism, a first displacement sensor and a second displacement sensor. The operation insulator is fixedly connected with a moving conducting rod at the bottom of a vacuum arc-extinguishing chamber. One end of the first displacement sensor is fixed at the bottom of the operation insulator. The other end of the first displacement sensor is fixed on the linkage mechanism. The second displacement sensor is fixed at one end of the connection portion of the linkage mechanism and the first displacement sensor. The first displacement sensor is used for converting displacement changing between the operation insulator and the linkage mechanism into electric quantity to be output, by changing of an electric quantity output value, a just-closing point and a just-separating point of a moving contact and a static contact in the vacuum arc-extinguishing chamber are obtained, accordingly, the abrasion degrees of the moving contact and the static contact are known, meanwhile, by working of the second displacement sensor, the total stroke of a primary loop is found and is used as a reference point, therefore, on-line detecting of the mechanical property of the vacuum arc-extinguishing chamber is completed, and the reliability of the detecting device is improved.
Description
Technical field
The present invention relates to the online mechanical property on-line measuring device detecting of a kind of mechanical property for vacuum interrupter.
Background technology
Vacuum interrupter, has another name called vacuum switch tube, is the core component of mesohigh power switch, and its Main Function is, makes after mesohigh circuitry cuts power supply blow-out rapidly and suppresses electric current by managing insulativity that interior vacuum is good, avoids accident and unexpected generation.Before vacuum interrupter comes into operation, conventionally need to detect its mechanical property, at present, conventional detection mode is that the moving conductive rod of vacuum interrupter is fixedly connected with a slide rheostat, the athletic meeting of the moving conductive rod of vacuum interrupter changes the resistance of described slide rheostat, thereby obtains the working value of vacuum interrupter, but because slide rheostat is contact, in testing process, have wearing and tearing to a certain degree, affect the serviceable life of pick-up unit; In addition, cannot realize the online detection of mechanical property with upper type, for speed, open the parameters such as distance, the excess of stroke and cannot detect.
Therefore, how providing the more comprehensive mechanical property on-line measuring device of parameter of a kind of longer service life, detection is those skilled in the art's technical matters urgently to be resolved hurrily.
Summary of the invention
The invention provides a kind of mechanical property on-line measuring device, to realize the detection of multiple mechanical properties of vacuum interrupter, simultaneously the serviceable life of prolonged mechanical characteristic on-line detection device, improve its job stability.
For solving the problems of the technologies described above, the invention provides a kind of mechanical property on-line measuring device, comprise operation insulator, link gear and the first displacement transducer and second displacement sensor, described operation insulator is fixedly connected with the moving conductive rod of vacuum interrupter bottom, the bottom of described operation insulator is fixed in one end of described the first displacement transducer, the other end is fixed on described link gear, and described second displacement sensor is fixed on one end place that described link gear is connected with described the first displacement transducer.
Preferably, described the first displacement transducer adopts linear displacement transducer.
Preferably, described linear displacement transducer adopts resistance sensor.
Preferably, described resistance sensor comprises resistive element and brush, described resistive element is fixed on described operation insulator inside, one end of described brush is fixed on described link gear, the other end stretches into described operation insulator inside, and does rectilinear motion with respect to described resistive element under the drive of described link gear.
Preferably, described link gear comprises three-phase linkage mechanism, leverage and driving mechanism, one end of described three-phase linkage mechanism is connected to described driving mechanism, and the other end is connected to one end of described leverage, and the other end of described leverage is fixedly connected with described brush.
Preferably, the top of described vacuum interrupter is provided with wire outlet seat, and bottom is provided with and is flexible coupling.
Mechanical property on-line measuring device provided by the invention, comprise operation insulator, link gear and the first displacement transducer and second displacement sensor, described operation insulator is fixedly connected with the moving conductive rod of vacuum interrupter bottom, the bottom of described operation insulator is fixed in one end of described the first displacement transducer, the other end is fixed on described link gear, and described second displacement sensor is fixed on one end place that described link gear is connected with described the first displacement transducer.The present invention utilizes the first displacement transducer to convert the change in displacement between operation insulator and link gear to electric weight output, and the variation that utilizes this electric weight output valve obtains just the closing of the indoor dynamic and static contact of vacuum extinction, just branch, thereby understand the degree of wear of dynamic and static contact; Find the total kilometres of primary circuit by the work of second displacement sensor, as the reference point of the first displacement transducer, thereby the mechanical property that completes vacuum interrupter detects online, and improves the reliability of pick-up unit simultaneously.
Brief description of the drawings
Fig. 1 is the front view of the mechanical property on-line measuring device of the embodiment of the invention;
Fig. 2 is the side view of the mechanical property on-line measuring device of the embodiment of the invention.
In figure: 10-operation insulator, 20-link gear, 21-three-phase linkage mechanism, 22-leverage, 23-fulcrum, 30-the first displacement transducer, 31-resistive element, 32-brush, 40-second displacement sensor, 50-vacuum interrupter, 51-moving conductive rod, the upper wire outlet seat of 52-, 53-are flexible coupling.
Embodiment
For the technical scheme of more detailed statement foregoing invention, below list specific embodiment and carry out Proof Technology effect; It is emphasized that these embodiment are not limited to limit the scope of the invention for the present invention is described.
Mechanical property on-line measuring device provided by the invention, as depicted in figs. 1 and 2, comprise operation insulator 10, link gear 20 and the first displacement transducer 30 and second displacement sensor 40, described operation insulator 10 is fixedly connected with the moving conductive rod 51 of vacuum interrupter 50 bottoms, the bottom of described operation insulator 10 is fixed in one end of described the first displacement transducer 30, the other end is fixed on described link gear 20, and described second displacement sensor 40 is fixed on one end place that described link gear 20 is connected with described the first displacement transducer 30.The motion of described link gear 20 drives described operation insulator 10 move up and down (direction of arrow in figure), thereby drive described moving conductive rod 51 to move up and down, and then control moving, static contact is closed or separately, simultaneously, the first displacement transducer 30 being installed between described link gear 20 and operation insulator 10 is worked, straight-line displacement between operation insulator 10 and link gear 20 is changed and converts electric weight output to, find moving by this electric weight output valve, just closing of static contact, just branch and over travel, can obtain moving in described vacuum interrupter 50, the degree of wear of static contact, in the time that described link gear 20 moves, also drive described second displacement sensor 40 to move up and down simultaneously, find the total kilometres of primary circuit, in order to detect the displacement of vertical direction of link gear 20, the reference point of working as the first displacement transducer 30, guarantee the true and accurate of parameter, by just the closing of dynamic and static contact, just branch and over travel and total kilometres, can accurately test out the mechanical property of vacuum interrupter 50.
Preferably, please continue to refer to Fig. 1 and Fig. 2, described the first displacement transducer 30 adopts linear displacement transducer, in the present embodiment, adopt resistance sensor, particularly, described resistance sensor comprises resistive element 31 and brush 32, described resistive element 31 is fixed on described operation insulator 10 inside, one end of described brush 32 is fixed on described link gear 20, the other end stretches into described operation insulator 10 inside, and do rectilinear motion with respect to described resistive element 31 under the drive of described link gear 20, between described resistive element 31 and brush 32, can be contactless, thereby reduce loss, improve the serviceable life of pick-up unit.In addition, that described resistance sensor has is simple in structure, output accuracy is higher, the feature of linearity and good stability, and compared to the sensor of the other types such as pressure transducer, it has higher reliability, makes test macro more stable.
Preferably, please emphasis with reference to figure 1, described link gear 20 comprises three-phase linkage mechanism 21, leverage 22 and driving mechanism (not shown), one end of described three-phase linkage mechanism 21 is connected to described driving mechanism, the other end is connected to one end of described leverage 22, and the other end of described leverage 22 is fixedly connected with described brush 32.Particularly, described driving mechanism provides driving force, described three-phase linkage mechanism 21 is converted into the driving force of described driving mechanism rotatablely moving in the certain limit of described leverage 22 1 sides, then by fulcrum 23, this rotatablely moving is among a small circle converted into moving up and down of operation insulator 10.
Preferably, please continue to refer to Fig. 1 and Fig. 2, the top of described vacuum interrupter 50 is provided with wire outlet seat 52, bottom is provided with and is flexible coupling 53, utilize external unit by described upper wire outlet seat 52 with described in be flexible coupling and 53 be connected, make itself and described vacuum interrupter 50 form loop, can reflect that according to the break-make road of described external unit the residing state of the interior dynamic and static contact of vacuum interrupter 50 is closed or separately, be convenient to find just the closing of dynamic and static contact, just branch.
In sum, mechanical property on-line measuring device provided by the invention, comprise operation insulator 10, link gear 20 and the first displacement transducer 30 and second displacement sensor 40, described operation insulator 10 is fixedly connected with the moving conductive rod 51 of vacuum interrupter 50 bottoms, the bottom of described operation insulator 10 is fixed in one end of described the first displacement transducer 30, the other end is fixed on described link gear 20, and described second displacement sensor 40 is fixed on one end place that described link gear 20 is connected with described the first displacement transducer 30.The present invention utilizes the first displacement transducer 30 to convert the change in displacement between operation insulator 10 and link gear 20 to electric weight output, and the variation that utilizes this electric weight output valve obtains just the closing of vacuum interrupter 50 interior dynamic and static contacts, just branch, thereby understand the degree of wear of dynamic and static contact; Find the total kilometres of primary circuit by the work of second displacement sensor 40 simultaneously, the reference point of working as the first displacement transducer 30, thus the mechanical property that completes vacuum interrupter detects online, and improve the reliability of pick-up unit.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to including these changes and modification.
Claims (6)
1. a mechanical property on-line measuring device, it is characterized in that, comprise operation insulator, link gear and the first displacement transducer and second displacement sensor, described operation insulator is fixedly connected with the moving conductive rod of vacuum interrupter bottom, the bottom of described operation insulator is fixed in one end of described the first displacement transducer, the other end is fixed on described link gear, and described second displacement sensor is fixed on one end place that described link gear is connected with described the first displacement transducer.
2. mechanical property on-line measuring device as claimed in claim 1, is characterized in that, described the first displacement transducer adopts linear displacement transducer.
3. mechanical property on-line measuring device as claimed in claim 2, is characterized in that, described linear displacement transducer adopts resistance sensor.
4. mechanical property on-line measuring device as claimed in claim 3, it is characterized in that, described resistance sensor comprises resistive element and brush, described resistive element is fixed on described operation insulator inside, one end of described brush is fixed on described link gear, the other end stretches into described operation insulator inside, and does rectilinear motion with respect to described resistive element under the drive of described link gear.
5. mechanical property on-line measuring device as claimed in claim 4, it is characterized in that, described link gear comprises three-phase linkage mechanism, leverage and driving mechanism, one end of described three-phase linkage mechanism is connected to described driving mechanism, the other end is connected to one end of described leverage, and the other end of described leverage is fixedly connected with described brush.
6. mechanical property on-line measuring device as claimed in claim 1, is characterized in that, the top of described vacuum interrupter is provided with wire outlet seat, and bottom is provided with and is flexible coupling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410227949.5A CN103983448B (en) | 2014-05-27 | 2014-05-27 | Mechanical property on-line measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410227949.5A CN103983448B (en) | 2014-05-27 | 2014-05-27 | Mechanical property on-line measuring device |
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| CN103983448A true CN103983448A (en) | 2014-08-13 |
| CN103983448B CN103983448B (en) | 2017-10-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367362A (en) * | 2017-06-22 | 2017-11-21 | 西安工程大学 | Composite insulator fatigue rupture detection method based on image procossing |
| CN108983080A (en) * | 2018-04-24 | 2018-12-11 | 河南平高电气股份有限公司 | A kind of operating mechanism breaker fictitious load experimental rig |
| CN111692958A (en) * | 2020-07-06 | 2020-09-22 | 浙江工业大学 | Device and method for measuring shield attitude in steel sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107367362A (en) * | 2017-06-22 | 2017-11-21 | 西安工程大学 | Composite insulator fatigue rupture detection method based on image procossing |
| CN107367362B (en) * | 2017-06-22 | 2019-07-26 | 西安工程大学 | Composite insulator fatigue rupture detection method based on image procossing |
| CN108983080A (en) * | 2018-04-24 | 2018-12-11 | 河南平高电气股份有限公司 | A kind of operating mechanism breaker fictitious load experimental rig |
| CN111692958A (en) * | 2020-07-06 | 2020-09-22 | 浙江工业大学 | Device and method for measuring shield attitude in steel sleeve |
| CN111692958B (en) * | 2020-07-06 | 2024-06-07 | 浙江工业大学 | Device and method for measuring shield posture in steel sleeve |
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| CN103983448B (en) | 2017-10-31 |
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