CN205542455U - Intelligent operating mechanism is used to circuit breaker - Google Patents
Intelligent operating mechanism is used to circuit breaker Download PDFInfo
- Publication number
- CN205542455U CN205542455U CN201620061909.2U CN201620061909U CN205542455U CN 205542455 U CN205542455 U CN 205542455U CN 201620061909 U CN201620061909 U CN 201620061909U CN 205542455 U CN205542455 U CN 205542455U
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- China
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- operating mechanism
- chopper
- intelligent operating
- separating brake
- semiaxis
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Abstract
The utility model discloses an intelligent operating mechanism is used to circuit breaker has combined floodgate semi -axis, breaking brake semi axis, energy storage bullet spring shaft, the sincere son of combined floodgate and the sincere son of separating brake, semi -axis, breaking brake semi axis, energy storage bullet spring shaft will be called three group's transmission shafts if will close a floodgate most likely, be equipped with pressure sensor on this three group at least a set of in transmission shaft. The utility model discloses the realization is directly monitored the circuit breaker operating mechanism body, and the function is novel, the structure is ingenious, has real -time supervision operating mechanism operating condition, and to reducing the operating mechanism fault rate, guarantee electric power system's stability and safe operation have important meaning.
Description
Technical field
This utility model belongs to breaker technical field, is specifically related to a kind of intelligent operating mechanism of chopper.
Background technology
Chopper is as protection important in power system and controls equipment, and it can not only close, carry and cut-off the electric current under normal loop condition, and can close, carries and cut-off the electric current under abnormal loop condition within the time of regulation.During Operation of Electric Systems, it is desirable to chopper can quickly shut off the circuit or electrical equipment broken down, if chopper breaks down in this process, it is impossible to timely and reliably disengagement failure, it will system is caused strong influence, causes the generation of accident.The international survey of international conference on large HV electric systems tissue shows, in the fault of chopper, mechanical breakdown accounts for more than the 80% of all faults, and breaker mechanical part is mainly operating mechanism.Operating mechanism fault presents multiple consequence, mainly refuses to close, refuses point, divide-shut brake speed diminishes, locking is malfunctioning.Wherein, operating mechanism refuses branch makes line fault affect face expansion, causes bus-bar fault or main transformer fault, causes big harm to system, is the accident that character is the most serious.Divide-shut brake speed does not reaches requirement, chopper can be caused can not effectively to extinguish electric arc when cutting off with closed load electric current or fault current, cause switching overvoltage or make chopper generation explosion accident, and its consequence is the most serious.
Therefore, the operating mechanism of chopper is carried out on-line monitoring, find incipient fault in advance, reduce operating mechanism fault rate, for ensureing that power system is stablized and safe operation has important effect.In recent years, both at home and abroad State-Inspect of High-Voltage Circuit is done numerous studies, has mainly had the following aspects: 1) stroke-time response curve；2) mechanical oscillation signal；3) splitting or integrating brake cable loop current, voltage detecting；4) resistance measurement；5) SF6 pressure detecting；7) Insulation monitoring；8) specialist system.Described various monitoring mode is respectively arranged with quality, but it is not to be directly monitored for breaker operation mechanism body；In this this new and innovative from breaker operation mechanism body angle, a kind of intelligent operating mechanism of chopper of invention, this case thus produces.
Utility model content
The purpose of this utility model is to provide a kind of intelligent operating mechanism of chopper, direct monitoring breaker operating mechanism inner components force-bearing situation, and monitoring operating mechanism duty, has the features such as novel functions, compact conformation, highly versatile in real time.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of intelligent operating mechanism of chopper, has combined floodgate semiaxis, separating brake semiaxis, energy-stored spring axle, closing pawl and the sincere son of separating brake；If this combined floodgate semiaxis, separating brake semiaxis, energy-stored spring axle are referred to as three groups of power transmission shafts, the least one set in these three groups of power transmission shafts is provided with pressure transducer.
Described power transmission shaft is provided with interior caulking groove, and described pressure transducer uses inline mode to be located in interior caulking groove.
Described combined floodgate semiaxis and/or separating brake semiaxis are provided with the skew notch connect respectively for closing pawl, the sincere ZIKOU of separating brake, and described interior caulking groove and skew notch are at a distance of 10mm.
Described interior caulking groove is around the radial arrangement of power transmission shaft, and this interior caulking groove has the bottom land plane for the compact setting of pressure transducer.
The two ends width of described bottom land plane is different, and one end that wherein width is bigger is as the exit of the cable core drawing pressure transducer.
The insulation glue-line of insulation and antihunt action it has been coated with at described bottom land plane.
Least one set in described three groups of power transmission shafts uses alloy material axle.
Described alloy material axle uses 40CrNiMoA material.
Described pressure transducer is metal piezoresistive strain sheet force transducer.
Described operating mechanism is additionally provided with connecting lever, and the breaker main shaft being connected with this connecting lever arranges non-contact angle sensor.
After using such scheme, this utility model having the beneficial effects that relative to prior art:
One, pressure transducer is creatively embedded on the specific internal part of operating mechanism by this utility model, it is provided that the new method of a kind of direct monitoring breaker operating mechanism inner components duty, is greatly improved chopper on-line monitoring precision；
Two, the stress changing condition direct reaction of the internal each parts of operating mechanism operating mechanism duty, design special structure further, pressure transducer is embedded in the specific internal part of breaker operation mechanism, it is achieved breaker operation mechanism truly is intelligent；
Three, operating mechanism inner body force-bearing situation comprises abundant information, particularly during splitting or integrating lock, the stressing conditions direct reaction of splitting or integrating lock semiaxis the operation conditions of operating mechanism, this utility model is capable of the collection to these information, and has good stability.
To sum up, this utility model realizes directly being monitored breaker operation mechanism body, and novel functions, structure are ingenious, has monitoring operating mechanism duty in real time, to reducing operating mechanism fault rate, ensure that the stable of power system and safe operation have great importance.
Accompanying drawing explanation
Fig. 1 is the intelligent operating mechanism front view of chopper of the present utility model；
Fig. 2 is the intelligent operating mechanism side view of chopper of the present utility model；
Fig. 3 is the intelligent operating mechanism internal drive chain schematic diagram of chopper of the present utility model；
Fig. 4-1 is energy-stored spring axle construction figure of the present utility model；
Fig. 4-2 is the stress schematic diagram of energy-stored spring axle of the present utility model；
Fig. 5-1 is combined floodgate semi-axis structure figure of the present utility model；
Fig. 5-2 is the stress schematic diagram of combined floodgate semiaxis of the present utility model；
Fig. 6-1 is separating brake semi-axis structure figure of the present utility model；
Fig. 6-2 is the stress schematic diagram of separating brake semiaxis of the present utility model.
Detailed description of the invention
With detailed description of the invention, this case is described in further detail below in conjunction with the accompanying drawings.
This utility model relates to a kind of intelligent operating mechanism of chopper, as shown in Figure 1 to Figure 3, have include energy storage motor assembly 1, travel switch assembly 2, manual energy storage assembly 3, energy storage cam pack 4, energy-stored spring 5, energy storage instruction assembly 6, kinematic link assembly 7, combined floodgate electrical apparatus release 8, separating brake electrical apparatus release 9, overcurrent release 10, on/off switch instruction assembly 11, switch knob 12, opening button 13, auxiliary switch 14, energy-stored spring axle 15.
Described manual energy storage assembly 3 is preferably made up of bevel-gear sett 31,32, and it has simple installation, bearing capacity is high, transmission power is big, the feature of length in service life.Described energy storage cam pack 4 includes energy storage camshaft 41, combined floodgate cam 42, gear wheel 43, check wheel 44, positioning sleeve 45, connecting lever 46 etc..Described kinematic link assembly 7 includes sincere sub 74, output shaft 75 of combined floodgate semiaxis 71, separating brake semiaxis 72, closing pawl 73, separating brake etc..
Breaker operation mechanism operation principle is the most similar, refers to related data, is the most no longer discussed in detail, and how to realize " intelligent " just for the intelligent operating mechanism of chopper of the present utility model below and is described in detail.
If described combined floodgate semiaxis 71, separating brake semiaxis 72, energy-stored spring axle 15 are referred to as three groups of power transmission shafts, the least one set in these three groups of power transmission shafts is provided with pressure transducer.Be given in ground preferred embodiment, if Fig. 4-1 is to shown in 6-2, three groups of power transmission shafts (i.e. combined floodgate semiaxis 71, separating brake semiaxis 72, energy-stored spring axle 15) be equipped with pressure transducer (respectively 711,721,151).
The described power transmission shaft being provided with pressure transducer is provided with interior caulking groove, being respectively equipped with interior caulking groove 712,722,152 in specific embodiment on combined floodgate semiaxis 71, separating brake semiaxis 72, energy-stored spring axle 15, described pressure transducer 711,721,151 uses inline mode to be respectively arranged in interior caulking groove 712,722,152.
Further, combined floodgate semiaxis 71, separating brake semiaxis 72 are provided with respectively for closing pawl 73, the skew notch 713,723 of sincere sub 74 snappings of separating brake, and described interior caulking groove 712 is each about 10mm with skew notch 713, interior caulking groove 722 with the distance of skew notch 723.As a example by lifting combined floodgate semiaxis 71, it is contemplated that embedded pressure sensing station, sensor acquisition signal degree of accuracy and stability, at skew notch 713 on combined floodgate semiaxis 71, edge is at closing pawl 73 snapping, force value (change) can reflect operating mechanism operating mode herein, but impact is big herein, friction is big, pressure transducer should not be arranged on herein, after comprehensive verification optimizes, pressure transducer is embedded in the interior caulking groove 712(at the about 10mm of distance skew notch 713 concrete such as Fig. 5-1, shown in 5-2), so, sensor acquisition signal degree of accuracy and stability requirement can be met, the most do not affect the mechanical property of combined floodgate semiaxis itself.
Preferably, the interior caulking groove 712,722,152 on described power transmission shaft is around the radial arrangement of respective power transmission shaft, and it has the bottom land plane for the compact setting of respective pressure transducer 711,721,151；Specifically, the arc surface that the surface of this interior caulking groove 712,722,152 is accepted by bottom land plane and a transition forms.The two ends width of described bottom land plane is different, in the bigger one end of bottom land plane width as exit, to draw cable core and the shielding bare wire of parcel of respective pressure transducer, seeing Fig. 4-2,5-2 and 6-2, extraction location is at the side of corresponding width amplification of exit.Described cable core is provided with 4, respectively 2 excitation wire and 2 holding wires.Preferably it is coated with one layer of white insulation glue-line at described transition plane, plays insulation and antihunt action.
Preferably, described pressure transducer is metal piezoresistive strain sheet force transducer.Owing to breaker actuation process time is short, force value sudden change is big, the high accuracy characteristic of metal piezoresistive strain sheet force transducer can meet this requirement.Breaker operation mechanism, in course of action, can produce the biggest impact shock at the part that particularly combined floodgate semiaxis 71, separating brake semiaxis 72, energy-stored spring axle 15 stress are concentrated, use metal piezoresistive strain sheet force transducer to have the strong feature of anti-vibrating and impact ability.And use metal piezoresistive strain sheet force transducer also to have and be embedded in advantage little on the impact of each axle intensity, function after power transmission shaft.
Preferably, described power transmission shaft (combined floodgate semiaxis 71, separating brake semiaxis 72, energy-stored spring axle 15) uses alloy material axle, and this alloy material axle specifically uses 40CrNiMoA material.Owing to breaker operation mechanism combined floodgate semiaxis acts frequently, action all can be by the biggest impulsive force, frictional force every time, and after 40CrNiMoA material is modulated process, not only there is good processability, machining deformation little, and there is high intensity, high tenacity, the characteristic such as wear-resisting.
During this utility model intelligent operating mechanism energy storage (manually or electrically), energy storage axle 16 rotates, gear wheel 43 is driven to rotate by little gear 17, meanwhile, camshaft 41, combined floodgate cam 42, check wheel 44, connecting lever 46 rotate the most simultaneously, and now energy-stored spring 5 is stretched, switching-in spring axle 15 is by the pulling force of energy-stored spring 5, as shown in the Fig. 4-2, foil gauge resistance thereon changes, and is exported to acquisition system by electric bridge converting to force signal.After energy storage, closing pawl 73 clasps combined floodgate semiaxis 71, makes combined floodgate semiaxis 71 be under pressure, and as shown in Fig. 5-2, the foil gauge resistance on combined floodgate semiaxis 71 changes, and is exported to acquisition system by electric bridge converting to force signal.During combined floodgate, combined floodgate semiaxis 71 is threaded off, now combined floodgate semiaxis 71 is by the pressure vanishing of closing pawl 73, separating brake sincere sub 74 clasps separating brake semiaxis 72 simultaneously, separating brake semiaxis 72 is made to be under pressure, as in fig. 6-2, the foil gauge resistance on separating brake semiaxis 72 changes, and is exported to acquisition system by electric bridge converting to force signal.During separating brake, separating brake semiaxis 72 is threaded off, and separating brake semiaxis 72 is by the pressure vanishing of separating brake sincere sub 74.
Breaker operation mechanism combined floodgate semiaxis 71, the force-bearing situation of separating brake semiaxis 72, the change of energy-stored spring 5 power all comprise abundant information, as big when monitoring the change of combined floodgate semiaxis 71 stress, can determine whether that operating mechanism has the risk closing not brake application, maintainer is reminded to keep in repair timely and effectively, it is to avoid the generation of accident；Diminish when monitoring energy-stored spring 5 power, can determine whether that energy-stored spring 5 occurs in that tired decay, it should change energy-stored spring in time, it is ensured that chopper properly functioning.
For a long time, in order to realize breaker operation mechanism fault diagnosis, numerous studies are carried out both at home and abroad, but the signal for fault diagnosis is mainly: contact travel curve, on/off switch coil current, vibration signal etc., but is not monitored stress (change) situation of breaker operation mechanism combined floodgate semiaxis, separating brake semiaxis.Actually, breaker operation mechanism combined floodgate semiaxis, the force-bearing situation of separating brake semiaxis, the change of energy-stored spring power comprise abundant information, whether breaker operation mechanism is operating normally, failure cause etc. all can be reacted in combined floodgate semiaxis, separating brake semiaxis, the change of energy-stored spring axle force value, if able to collect these information and analyzed, for realizing breaker operation mechanism fault diagnosis, ensureing that the properly functioning tool of chopper is of great significance.In this, the utility model proposes intelligent operating mechanism, use that metal piezoresistive strain sheet force transducer is embedded is blended on the combined floodgate semiaxis of 40CrNiMoA alloy material, separating brake semiaxis, energy-stored spring axle, can monitor combined floodgate semiaxis, separating brake semiaxis, energy-stored spring axle force-bearing situation in real time, and the semiaxis that closes a floodgate, separating brake semiaxis, energy-stored spring axle force-bearing situation are the states that can directly reflect breaker operation mechanism.
Preferably, the breaker main shaft being connected with connecting lever 46 is additionally provided with non-contact angle sensor, thus monitors the relation of operating mechanism output angle-time.
Above example only illustrates technological thought of the present utility model; protection domain of the present utility model can not be limited with this; every according to the technological thought that the utility model proposes, any change done on the basis of technical scheme, within each falling within this utility model protection domain.
Claims (10)
1. the intelligent operating mechanism of chopper, has combined floodgate semiaxis, separating brake semiaxis, energy-stored spring axle, closing pawl and the sincere son of separating brake；It is characterized in that: set and this combined floodgate semiaxis, separating brake semiaxis, energy-stored spring axle are referred to as three groups of power transmission shafts, the least one set in these three groups of power transmission shafts is provided with pressure transducer.
2. a kind of intelligent operating mechanism of chopper as claimed in claim 1, it is characterised in that: described power transmission shaft is provided with interior caulking groove, and described pressure transducer uses inline mode to be located in interior caulking groove.
3. a kind of intelligent operating mechanism of chopper as claimed in claim 2, it is characterised in that: described combined floodgate semiaxis and/or separating brake semiaxis are provided with the skew notch connect respectively for closing pawl, the sincere ZIKOU of separating brake, and described interior caulking groove and skew notch are at a distance of 10mm.
4. a kind of intelligent operating mechanism of chopper, it is characterised in that: described interior caulking groove is around the radial arrangement of power transmission shaft, and this interior caulking groove has the bottom land plane for the compact setting of pressure transducer.
5. a kind of intelligent operating mechanism of chopper as claimed in claim 4, it is characterised in that: the two ends width of described bottom land plane is different, and one end that wherein width is bigger is as the exit of the cable core drawing pressure transducer.
6. a kind of intelligent operating mechanism of chopper as claimed in claim 4, it is characterised in that: it is coated with the insulation glue-line of insulation and antihunt action at described bottom land plane.
7. a kind of intelligent operating mechanism of chopper as claimed in claim 1, it is characterised in that: the least one set in described three groups of power transmission shafts uses alloy material axle.
8. a kind of intelligent operating mechanism of chopper as claimed in claim 7, it is characterised in that: described alloy material axle uses 40CrNiMoA material.
9. a kind of intelligent operating mechanism of chopper as claimed in claim 1, it is characterised in that: described pressure transducer is metal piezoresistive strain sheet force transducer.
10. a kind of intelligent operating mechanism of chopper as claimed in claim 1, it is characterised in that: described operating mechanism is additionally provided with connecting lever, and the breaker main shaft being connected with this connecting lever arranges non-contact angle sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620061909.2U CN205542455U (en) | 2016-01-22 | 2016-01-22 | Intelligent operating mechanism is used to circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620061909.2U CN205542455U (en) | 2016-01-22 | 2016-01-22 | Intelligent operating mechanism is used to circuit breaker |
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| CN205542455U true CN205542455U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620061909.2U Expired - Fee Related CN205542455U (en) | 2016-01-22 | 2016-01-22 | Intelligent operating mechanism is used to circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489411A (en) * | 2016-01-22 | 2016-04-13 | 厦门理工学院 | Intelligent operating mechanism used for circuit breaker |
-
2016
- 2016-01-22 CN CN201620061909.2U patent/CN205542455U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489411A (en) * | 2016-01-22 | 2016-04-13 | 厦门理工学院 | Intelligent operating mechanism used for circuit breaker |
| CN105489411B (en) * | 2016-01-22 | 2018-10-26 | 厦门理工学院 | A kind of intelligent operating mechanism of breaker |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160928 Address after: 361024 Fujian Province, Xiamen city industrial concentration area in 599 Yin Road No. third layer Patentee after: XIAMEN AU-MANNA ELECTRIC CO., LTD. Address before: 361024 Xiamen science and technology road, Jimei District, Fujian, No. 600 Patentee before: Xiamen University of Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |