CN105372051A - Detection device of mechanical characteristics of linear-rotary dual-purpose breaker - Google Patents
Detection device of mechanical characteristics of linear-rotary dual-purpose breaker Download PDFInfo
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- CN105372051A CN105372051A CN201510852205.7A CN201510852205A CN105372051A CN 105372051 A CN105372051 A CN 105372051A CN 201510852205 A CN201510852205 A CN 201510852205A CN 105372051 A CN105372051 A CN 105372051A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention discloses a detection device of mechanical characteristics of a linear-rotary dual-purpose breaker. The detection device comprises a linear sensor and an angle sensor, and the linear sensor and the angle sensor are fixed on a fixed support; one end of a measuring connecting lever is coaxially and fixedly connected with the transmission connecting lever of the breaker; the measuring shaft of the angle sensor is coaxially and fixedly connected with the measuring connecting lever through a coupling; and one end of an arc-turning-straight connecting rod is hinged to the other end of the measuring connecting lever, the other end of the arc-turning-straight connecting rod is connected with one end of a horizontal connecting rod, and the other end of the horizontal connecting rod is fixedly connected with the end of the measuring pull rod of the linear sensor fixed on the fixed support. Through adoption of a measuring connecting lever, the measurement of the vertical stroke or the speed of a breaker is converted to horizontal measurement, so that the problem of the limited installation space of a linear sensor when mechanical characteristics of the breaker are detected is solved; and moreover, through adoption of a linear-rotary two-way sensor, the problem is solved that the measurement result is influenced by faults of a single sensor, therefore the reliability of mechanical characteristics of the breaker is improved.
Description
Technical field
The present invention relates to a kind of mechanical feature detection device of the isolating switch for electric system, especially a kind of straight line rotates dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker.
Background technology
Isolating switch in type approval test, dispatch from the factory or must testing mechanical characteristic be carried out before commissioning test.Isolating switch is putting into operation in use procedure in addition, also according to technical requirement and testing regulations, regularly must carry out testing mechanical characteristic to prevent or to find circuit breaker failure and exception.In the breaker mechanic property test of current electric system, normally in transmission crank arm or insulated tension pole, install rectilinear transducer or angular transducer additional, moving contact of breaker stroke or speed are measured.
In prior art, because high-voltage sf6 circuit breaker general work stroke is longer, usually need the rectilinear transducer of larger row journey to mate, if be directly loaded on by sensor on connecting lever or on insulated tension pole, often occur the problem of installing space deficiency; Isolating switch particularly in some Phase in One Tank Type GIS, due to mechanism case structure closely, remaining space is little, being difficult to provides the position of directly installing rectilinear transducer, often can only carry out characteristic test by use angle sensor.In addition, when being used alone single-sensor measurement, if this sensor experiences failure, the reliability of test result can directly be had influence on.
Summary of the invention
Technical matters to be solved by this invention, just be to provide a kind of straight line and rotate dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker, it does not limit by rectilinear transducer installing space when breaker mechanic property detects, and simultaneously can also rotate by straight line the reliability that two-way sensor improves breaker trip in breaker mechanic property test and velocity survey.
Solve the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of straight line rotates dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker, comprises rectilinear transducer and angular transducer, it is characterized in that: also comprise a measurement connecting lever, an arc turns straight connecting rod, a waling stripe, a shaft coupling and a fixed support;
Described rectilinear transducer and angular transducer are all fixed on fixed support, the one end measuring connecting lever is coaxially fixedly connected with isolating switch transmission crank arm, the measurement axle of angular transducer is coaxially fixedly connected with measurement connecting lever by shaft coupling, described arc turns the other end of the hinged described measurement connecting lever 10 in one end of straight connecting rod 20, and arc turns the other end of straight connecting rod 20 then:
Connect one end of waling stripe 30, the other end of waling stripe 30 is then fixed on measurement pull bar 41 rod end of the described rectilinear transducer be fixed on equally on fixed support.
Or: measurement pull bar 41 rod end directly and being equally fixed on the rectilinear transducer on fixed support is hinged.
As a kind of embodiment of the present invention, described fixed support comprises one can be fixed on base on breaker operation mechanism cabinet shell, and base is provided with two legs for fixing rectilinear transducer two ends and for supporting the armstand of angular transducer; Described armstand has two through holes, and angular transducer is bearing in armstand by U-shaped stud bolt.
Further, described waling stripe is L shape, and short of the bending of its L shape has through hole; There is screw thread the end of the measurement pull bar of rectilinear transducer, is also fixedly connected with waling stripe with two nuts through bending short through hole.
Compared with prior art, the present invention has the following advantages:
The present invention utilizes measurement connecting lever that the measurement of vertical for isolating switch stroke or speed is converted to horizontal survey, solves the problem that when breaker mechanic property detects, rectilinear transducer installing space is limited; Simultaneously by adopting straight line to rotate two-way sensor, avoid the problem of single-sensor fault effects measurement result, the breaker trip in the test of raising breaker mechanic property and the reliability of velocity survey.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram front elevation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the measurement result conversion schematic diagram of Fig. 1 embodiment.
In figure, 10-measures connecting lever, and 20-arc turns straight connecting rod, 30-waling stripe, 40-rectilinear transducer, the measurement pull bar of 41-rectilinear transducer, 50-shaft coupling, 60-angular transducer, 70-fixed support, 71-base, 72-leg, 73-armstand, 74-U shape stud bolt, 80-isolating switch transmission crank arm, 81-insulating pull rod for breaker, 90-operating mechanism cabinet shell.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
As depicted in figs. 1 and 2, straight line of the present invention rotates dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker embodiment, comprises rectilinear transducer 40 and angular transducer 60, in addition, also comprise measurement connecting lever 10, arc and turn straight connecting rod 20, one waling stripe 30, shaft coupling 50 and a fixed support 70.
Rectilinear transducer 40 and angular transducer 60 are all fixed on fixed support 70, the one end measuring connecting lever 10 is coaxially fixedly connected with isolating switch transmission crank arm 80, the measurement axle of angular transducer 60 is coaxially fixedly connected with measurement connecting lever 10 by shaft coupling 50, the two ends that arc turns straight connecting rod 20 are then connected by pin with the measurement other end of connecting lever 10 and one end of waling stripe 30 respectively, and the measurement pull bar 41 of rectilinear transducer is fixedly connected with the other end of waling stripe 30.
Fixed support 70 comprises one can be fixed on base 71 on operating mechanism cabinet shell, and base is provided with two legs 72 for fixing rectilinear transducer two ends, and one for supporting the armstand 73 of determining angular transducer; Armstand 73 has two through holes, and angular transducer 60 is fixed in armstand 73 by U-shaped stud bolt 74; Waling stripe 30 is L shape, and short of its L shape has through hole; There is screw thread the end of the measurement pull bar 41 of rectilinear transducer, is also fixedly connected with waling stripe 30 with two nuts through through hole.
As shown in Figure 3, suppose that the measured value of rectilinear transducer is H, the measured value of angular transducer is φ (radian), measured isolating switch traveled distance or speed are S, it is R that wall radius is turned in isolating switch transmission, measuring connecting lever radius is r, then exist with lower aprons corresponding relation: S=HR/r=φ R.Therefore can simultaneously by rectilinear transducer and angular transducer indirect inspection isolating switch traveled distance or speed, and mutually can carry out verifying judging whether existing the situation that single-sensor breaks down.
From above-mentioned reasoning, can find out, adopt the present invention to measure breaker trip or speed, the effect solving rectilinear transducer installing space limitation problem, improve breaker mechanic property testing reliability can be realized.
Claims (4)
1. straight line rotates a dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker, comprises rectilinear transducer and angular transducer, it is characterized in that: also comprise a measurement connecting lever, an arc turns straight connecting rod, a shaft coupling and a fixed support;
Described rectilinear transducer and angular transducer are all fixed on fixed support, the one end measuring connecting lever is coaxially fixedly connected with isolating switch transmission crank arm, the measurement axle of angular transducer is coaxially fixedly connected with measurement connecting lever by shaft coupling, described arc turns the other end of the hinged described measurement connecting lever in one end of straight connecting rod, and the measurement pull bar rod end that the other end that arc turns straight connecting rod then directly and is equally fixed on the rectilinear transducer on fixed support is hinged.
2. straight line according to claim 1 rotates dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker, it is characterized in that: the other end that described arc turns straight connecting rod connects one end of a waling stripe, and the other end of waling stripe is just fixed on the measurement pull bar rod end of the described rectilinear transducer be fixed on equally on fixed support.
3. straight line according to claim 1 and 2 rotates dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker, it is characterized in that: described fixed support comprises one can be fixed on base on the operating mechanism cabinet shell of isolating switch, and base is provided with two legs for fixing rectilinear transducer two ends and for supporting the armstand of angular transducer; Described armstand has two through holes, and angular transducer is bearing in armstand by U-shaped stud bolt.
4. straight line according to claim 3 rotates dual-purpose Detection Device for Mechanical Characteristics of Circuit Breaker, it is characterized in that: described waling stripe is L shape, and short of the bending of its L shape has through hole; There is screw thread the end of the measurement pull bar of rectilinear transducer, is also fixedly connected with waling stripe with two nuts through bending short through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852205.7A CN105372051A (en) | 2015-11-27 | 2015-11-27 | Detection device of mechanical characteristics of linear-rotary dual-purpose breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852205.7A CN105372051A (en) | 2015-11-27 | 2015-11-27 | Detection device of mechanical characteristics of linear-rotary dual-purpose breaker |
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| CN105372051A true CN105372051A (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510852205.7A Pending CN105372051A (en) | 2015-11-27 | 2015-11-27 | Detection device of mechanical characteristics of linear-rotary dual-purpose breaker |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932603A (en) * | 2017-04-27 | 2017-07-07 | 国家电网公司 | For the excessive joint of sensor and its installation method of vacuum circuit breaker tachometric survey |
| CN107860291A (en) * | 2017-11-06 | 2018-03-30 | 国网福建省电力有限公司 | Contact of breaker stroke-measuring method |
| CN114166484A (en) * | 2021-11-12 | 2022-03-11 | 广西电网有限责任公司南宁供电局 | Mechanical performance test bench for circuit breaker operating mechanism |
| CN115096578A (en) * | 2022-08-25 | 2022-09-23 | 国网山西省电力公司临汾供电公司 | High-voltage switch mechanical characteristic comprehensive test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107860291A (en) * | 2017-11-06 | 2018-03-30 | 国网福建省电力有限公司 | Contact of breaker stroke-measuring method |
| CN114166484A (en) * | 2021-11-12 | 2022-03-11 | 广西电网有限责任公司南宁供电局 | Mechanical performance test bench for circuit breaker operating mechanism |
| CN115096578A (en) * | 2022-08-25 | 2022-09-23 | 国网山西省电力公司临汾供电公司 | High-voltage switch mechanical characteristic comprehensive test device |
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