CN106409594A - Mechanical locking device for isolating spring mechanism of circuit breaker - Google Patents
Mechanical locking device for isolating spring mechanism of circuit breaker Download PDFInfo
- Publication number
- CN106409594A CN106409594A CN201610484031.8A CN201610484031A CN106409594A CN 106409594 A CN106409594 A CN 106409594A CN 201610484031 A CN201610484031 A CN 201610484031A CN 106409594 A CN106409594 A CN 106409594A
- Authority
- CN
- China
- Prior art keywords
- locking device
- mechanical locking
- spacer pin
- circuit breakers
- isolation circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a mechanical locking device for isolating a spring mechanism of a circuit breaker. The mechanical locking device comprises a connecting rod, a limiting pin and a transmission mechanism, wherein the connecting rod carries out linear reciprocating motion along with opening and closing of an earthing switch of the circuit breaker; the limiting pin is used for limiting a spring mechanism release; the transmission mechanism is used for driving the limiting pin to carry out linear reciprocating motion; and the transmission mechanism is arranged between the connecting rod and the limiting pin. The mechanical locking device has the advantages of being simple in structure, high in reliability and the like, and misoperation can be prevented.
Description
Technical field
The present invention relates to isolation circuit breakers, more particularly, to a kind of mechanical locking device for isolation circuit breakers spring structure.
Background technology
The especially new intelligent isolation circuit breakers of high voltage power transmission and transforming switchgear are usually provided with blocking device, on the one hand make ground knife be in chopper during "on" position cannot normally enter to make, guarantee equipment is steady, reliable operation, the electric arc preventing on-load from drawing disconnecting switch and producing causes short circuit accident, on the other hand knife disconnecting link, by under gravity, blast, vibration, rational shock or the environmental condition unexpectedly touching mechanism, can make chopper reliably be parked in open position and keep normal operation.
Existing blocking device, the easy maloperation of complex structure, it also occur that misoperation, reliability is poor, there is potential safety hazard for the blocking device itself when electrical equipment breaks down.
Content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides that a kind of structure is simple, can prevent the high mechanical locking device for isolation circuit breakers spring structure of maloperation, reliability.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：A kind of mechanical locking device for isolation circuit breakers spring structure, make the connecting rod of straight reciprocating motion, the spacer pin for limited spring mechanical unlocking device and for driving spacer pin to make the drive mechanism of straight reciprocating motion including the ground knife divide-shut brake with chopper, described drive mechanism is between described connecting rod and described spacer pin.
Improvement further as technique scheme：
Described drive mechanism includes the drive link of travelling gear and travelling gear synchronous axial system and is fixedly arranged on the trundle on described connecting rod, waist-shaped hole is offered on described drive link, described trundle is positioned in described waist-shaped hole, and described spacer pin is provided with the rack segments engaging with described travelling gear.
Described drive link one end is fixedly connected with described travelling gear, and described waist-shaped hole is opened in the drive link other end.
The gear shaft of described travelling gear is installed on an axle bed, is provided with axle sleeve between described gear shaft and described axle bed.
Described spacer pin is arranged in the support of spring mechanism, and described axle bed is fixedly arranged on the support of spring mechanism.
Described connecting rod is vertically arranged, described spacer pin is horizontally disposed.
Also include guide, described guide one end offers the pilot hole with the cooperation of described spacer pin, the other end offers fastener receptacles.
Described guide is provided with positioning step and is positioned on the support of spring mechanism by positioning step.
Compared with prior art, it is an advantage of the current invention that：Mechanical locking device for isolation circuit breakers spring structure disclosed by the invention, using connecting rod, actuating device and spacer pin, the ground knife of chopper is associated locking with spring mechanism, structure is simple, when chopper is in open position, if ground knife closes a floodgate, spacer pin is driven to insert in the electrical apparatus release of spring mechanism, chopper cannot enter to make, after ground knife separating brake, spacer pin then exits electrical apparatus release, and chopper keeps normal and runs, and can effectively prevent maloperation and reliability is high.
Brief description
Fig. 1 is that ground knife is in the structural representation that present invention during "on" position is used for the mechanical locking device of isolation circuit breakers spring structure.
Fig. 2 ground knife is in the structural representation that present invention during gate-dividing state is used for the mechanical locking device of isolation circuit breakers spring structure.
The each label of in figure represents：1st, connecting rod；2nd, electrical apparatus release；3rd, spacer pin；31st, rack segments；4th, drive mechanism；41st, travelling gear；42nd, drive link；421st, waist-shaped hole；43rd, trundle；44th, gear shaft；45th, axle bed；46th, axle sleeve；5th, guide；51st, pilot hole；52nd, fastener receptacles；53rd, positioning step；6th, support.
Specific embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As depicted in figs. 1 and 2, the mechanical locking device for isolation circuit breakers spring structure of the present embodiment, including the ground knife with chopper（In figure is not shown）Divide-shut brake and make the connecting rod 1 of straight reciprocating motion, spacer pin 3 for limited spring mechanical unlocking device 2 and for driving spacer pin 3 to make the drive mechanism 4 of straight reciprocating motion, drive mechanism 4 is between connecting rod 1 and spacer pin 3, this is used for the mechanical locking device of isolation circuit breakers spring structure, using connecting rod 1, the ground knife of chopper is associated locking with spring mechanism by drive mechanism 4 and spacer pin 3, structure is simple, when chopper is in open position, if ground knife closes a floodgate, spacer pin 3 is driven to insert in the electrical apparatus release 2 of spring mechanism, chopper cannot enter to make, after ground knife separating brake, spacer pin 3 then exits electrical apparatus release 2, chopper keeps normal and runs, maloperation can effectively be prevented and reliability is high.
Drive mechanism 4 includes the drive link 42 of travelling gear 41 and travelling gear 41 synchronous axial system and is fixedly arranged on the trundle 43 on connecting rod 1, waist-shaped hole 421 is offered on drive link 42, trundle 43 is positioned in waist-shaped hole 421, spacer pin 3 is provided with the rack segments 31 engaging with travelling gear 41, drive mechanism 4 stable drive, reliability.In the present embodiment, drive link 42 one end is fixedly connected with travelling gear 41, waist-shaped hole 421 is opened in drive link 42 other end, realize being synchronized with the movement between drive link 42 and travelling gear 41, it is connected using flat key between travelling gear 41 and gear shaft 44, also trundle 43 can be coaxially disposed with gear shaft 44 in other embodiments, also can achieve being synchronized with the movement between the two.
In the present embodiment, the gear shaft 44 of travelling gear 41 is installed on an axle bed 45, is provided with axle sleeve 46 so that travelling gear 41 goes slick between gear shaft 44 and axle bed 45.
In the present embodiment, connecting rod 1 is vertically arranged, spacer pin 3 is horizontally disposed, the rotary shaft of the upper end of connecting rod 1 and ground knife（In figure is not shown）Hinged, trundle 43 is fixedly arranged on connecting rod 1 lower end.
The mechanical locking device for isolation circuit breakers spring structure of the present embodiment also includes guide 5, and guide 5 one end offers the pilot hole 51 with spacer pin 3 cooperation, and the motion of spacer pin 3 is more steady, and the other end of guide 5 offers fastener receptacles 52.
In the present embodiment, guide 5 is provided with positioning step 53 and is positioned on the support 6 of spring mechanism by positioning step 53, spacer pin 3 is arranged in the support 6 of spring mechanism, axle bed 45 is fixedly arranged on the support 6 of spring mechanism, the casing of available chopper is directed to part 5, spacer pin 3 and drive mechanism 4 reliably seals it is ensured that dust-proof effect.
The operation principle that the present invention is used for the mechanical locking device of isolation circuit breakers spring structure is as follows：
As shown in Fig. 2 when local knife does separating brake motion, the rotary shaft of ground knife（In figure is not shown）Drivening rod 1 moves straight down, connecting rod 1 drives drive link 42 to rotate clockwise by trundle 43, travelling gear 41 rotates thus driving spacer pin 3 level to move right with drive link 42, movement travel is designed as 27mm, when local knife reaches open position, spacer pin 3 is more than 5mm apart from electrical apparatus release 2, thus lifting a ban electrical apparatus release 2；On the contrary as shown in figure 1, when local knife does combined floodgate motion, to left movement, when local knife reaches closing position, in the pilot hole 51 of spacer pin 3 entrance guide 5,5mm is thus limit electrical apparatus release 2 for spacer pin 3 level.
Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those of ordinary skill in the art, in the case of without departing from technical solution of the present invention scope, can be utilized the technology contents of the disclosure above that technical solution of the present invention is made with many possible variations and modification, or the Equivalent embodiments being revised as equivalent variations.Therefore, every content without departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall in the range of technical solution of the present invention protection.
Claims (8)
1. a kind of mechanical locking device for isolation circuit breakers spring structure it is characterised in that：Make the connecting rod of straight reciprocating motion including the ground knife divide-shut brake with chopper（1）, be used for limited spring mechanical unlocking device（2）Spacer pin（3）And be used for driving spacer pin（3）Make the drive mechanism of straight reciprocating motion（4）, described drive mechanism（4）Located at described connecting rod（1）With described spacer pin（3）Between.
2. the mechanical locking device for isolation circuit breakers spring structure according to claim 1 it is characterised in that：Described drive mechanism（4）Including travelling gear（41）, and travelling gear（41）The drive link of synchronous axial system（42）And it is fixedly arranged on described connecting rod（1）On trundle（43）, described drive link（42）On offer waist-shaped hole（421）, described trundle（43）It is positioned described waist-shaped hole（421）Interior, described spacer pin（3）It is provided with and described travelling gear（41）The rack segments of engagement（31）.
3. the mechanical locking device for isolation circuit breakers spring structure according to claim 2 it is characterised in that：Described drive link（42）One end and described travelling gear（41）It is fixedly connected, described waist-shaped hole（421）It is opened in drive link（42）The other end.
4. the mechanical locking device for isolation circuit breakers spring structure according to claim 2 it is characterised in that：Described travelling gear（41）Gear shaft（44）It is installed in an axle bed（45）On, described gear shaft（44）With described axle bed（45）Between be provided with axle sleeve（46）.
5. the mechanical locking device for isolation circuit breakers spring structure according to claim 4 it is characterised in that：Described spacer pin（3）It is arranged in the support of spring mechanism（6）In, described axle bed（45）It is fixedly arranged on the support of spring mechanism（6）On.
6. the mechanical locking device for isolation circuit breakers spring structure according to claim 1 it is characterised in that：Described connecting rod（1）Vertically arrange, described spacer pin（3）Horizontally disposed.
7. the mechanical locking device for isolation circuit breakers spring structure according to any one of claim 1 to 6 it is characterised in that：Also include guide（5）, described guide（5）One end offers and described spacer pin（3）The pilot hole of cooperation（51）, the other end offers fastener receptacles（52）.
8. the mechanical locking device for isolation circuit breakers spring structure according to claim 7 it is characterised in that：Described guide（5）It is provided with positioning step（53）And pass through positioning step（53）It is positioned the support of spring mechanism（6）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484031.8A CN106409594B (en) | 2016-06-28 | 2016-06-28 | A kind of mechanical locking device for isolation circuit breakers spring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484031.8A CN106409594B (en) | 2016-06-28 | 2016-06-28 | A kind of mechanical locking device for isolation circuit breakers spring mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106409594A true CN106409594A (en) | 2017-02-15 |
| CN106409594B CN106409594B (en) | 2019-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610484031.8A Active CN106409594B (en) | 2016-06-28 | 2016-06-28 | A kind of mechanical locking device for isolation circuit breakers spring mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN106409594B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307603U (en) * | 2011-11-14 | 2012-07-04 | 青岛天信电气有限公司 | Mine explosion-proof switch door safety locking device |
| CN102684094A (en) * | 2012-05-08 | 2012-09-19 | 宁波欧日力电器制造有限公司 | Interlocking mechanism of low-pressure drawer type switch cabinet |
| CN202534578U (en) * | 2012-01-13 | 2012-11-14 | 昆明东控电器成套设备有限公司 | Switch cabinet isolating switch and grounding switch interlocking device |
| CN202810416U (en) * | 2012-08-24 | 2013-03-20 | 北京双杰电气股份有限公司 | Cable and cabin door interlocking device |
| CN104299815A (en) * | 2013-07-19 | 2015-01-21 | 天地（常州）自动化股份有限公司 | Locking device of mining flameproof and intrinsically-safe multi-loop vacuum electromagnetic starter |
| CN204966331U (en) * | 2015-07-06 | 2016-01-13 | 吉林瀚丰电气有限公司 | Interlock of high voltage isolator and circuit breaker |
| CN205828250U (en) * | 2016-06-28 | 2016-12-21 | 湖南长高电气有限公司 | A kind of mechanical locking device for isolation circuit breakers spring structure |
-
2016
- 2016-06-28 CN CN201610484031.8A patent/CN106409594B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307603U (en) * | 2011-11-14 | 2012-07-04 | 青岛天信电气有限公司 | Mine explosion-proof switch door safety locking device |
| CN202534578U (en) * | 2012-01-13 | 2012-11-14 | 昆明东控电器成套设备有限公司 | Switch cabinet isolating switch and grounding switch interlocking device |
| CN102684094A (en) * | 2012-05-08 | 2012-09-19 | 宁波欧日力电器制造有限公司 | Interlocking mechanism of low-pressure drawer type switch cabinet |
| CN202810416U (en) * | 2012-08-24 | 2013-03-20 | 北京双杰电气股份有限公司 | Cable and cabin door interlocking device |
| CN104299815A (en) * | 2013-07-19 | 2015-01-21 | 天地（常州）自动化股份有限公司 | Locking device of mining flameproof and intrinsically-safe multi-loop vacuum electromagnetic starter |
| CN204966331U (en) * | 2015-07-06 | 2016-01-13 | 吉林瀚丰电气有限公司 | Interlock of high voltage isolator and circuit breaker |
| CN205828250U (en) * | 2016-06-28 | 2016-12-21 | 湖南长高电气有限公司 | A kind of mechanical locking device for isolation circuit breakers spring structure |
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| Publication number | Publication date |
|---|---|
| CN106409594B (en) | 2019-06-11 |
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