CN204304291U - The circuit breaker cart that a kind of contact overtravel is controlled - Google Patents
The circuit breaker cart that a kind of contact overtravel is controlled Download PDFInfo
- Publication number
- CN204304291U CN204304291U CN201420818788.2U CN201420818788U CN204304291U CN 204304291 U CN204304291 U CN 204304291U CN 201420818788 U CN201420818788 U CN 201420818788U CN 204304291 U CN204304291 U CN 204304291U
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- CN
- China
- Prior art keywords
- tension pole
- insulated tension
- circuit breaker
- contact
- connecting lever
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Abstract
The utility model discloses the circuit breaker cart that a kind of contact overtravel is controlled, comprising: arc control device, it is built-in with moving contact and fixed contact; Transmission mechanism, it connecting lever comprising insulated tension pole assembly and be connected with its lower end, described insulated tension pole assembly is longitudinally arranged on the lower end of described arc control device, its by the insulator be connected with described moving contact, be arranged on spring bottom described insulator, be arranged on the insulated tension pole of described lower spring end and form, wherein, described insulated tension pole is provided with ruler, described connecting lever is arranged on strutting piece upper end, described strutting piece is arranged on base plate, the lower end of described insulated tension pole and one end pivot joint of described connecting lever; Driving mechanism, it is by the other end pivot joint of drive rod and described connecting lever.The utility model solves the technical problem that circuit breaker cart moving contact overtravel is not directly measured and adjusted.
Description
Technical field
The utility model relates to a kind of circuit breaker cart, the circuit breaker cart that particularly a kind of contact overtravel is controlled.
Background technology
The break performance of circuit breaker is main relevant to the kinetic characteristic of moving contact, the movement velocity of moving contact directly affects the on/off switch speed of circuit breaker, the movement travel of moving contact affects the repeated breakdown probability after the ability of circuit breaker drop-out voltage and arc, in multi-phase circuit breaker, the synchronism of moving between each phase arc control device moving contact and the consistency of stroke affect the reliability of breaker actuation.In frequent use procedure, circuit breaker is due to the impact of the reason such as mechanical shock and spring fatigue life, make the actuating length between each phase moving contact inconsistent, the wearing and tearing of adding between the dynamic and static contact of arc control device also can cause the difference between each phase on stroke, the time dispersiveness of on/off switch is between phase and phase caused to expand, cause the break performance of circuit breaker to worsen even failure of interruption, cause serious consequence, the excessive wear extent of contact system can also can cause the combined floodgate of dynamic/static contact not in place.And the moving contact progressive error opposite sex not easily direct-detection and the adjustment of existing circuit breaker cart, need the change distance being determined contact of breaker stroke by additional testing equipment, use inconvenience, in routine use, on/off switch time dispersiveness excessive between the every phase of circuit breaker cart can bury potential safety hazard to the use of power system device, if the difference finding not in time and adjust between contact on stroke will lose the useful life of equipment, more entail dangers to personal safety.
Utility model content
For above-mentioned technical problem, the circuit breaker cart that disclosed in the utility model, a kind of contact overtravel is controlled, circuit breaker cart every mutually on be provided with insulated tension pole assembly, directly can read the overtravel distance of each phase moving contact, solve the problem that moving contact overtravel is not directly measured, according to the moving contact stroke variable quantity read, adjust the distance between corresponding moving contact and fixed contact by phase-splitting, solve the problem that moving contact movement travel is between phase and phase inconsistent.
The technical scheme that the utility model provides is: the circuit breaker cart that a kind of contact overtravel is controlled, comprising:
Arc control device, it is built-in with moving contact and fixed contact; Transmission mechanism, it connecting lever comprising insulated tension pole assembly and be connected with its lower end, described insulated tension pole assembly is longitudinally arranged on the lower end of described arc control device, it comprises: the insulator be connected with described moving contact, the insulated tension pole being arranged on spring bottom described insulator, being arranged on described lower spring end, wherein, described insulated tension pole is provided with ruler, described connecting lever is arranged on strutting piece upper end, described strutting piece is arranged on base plate, the lower end of described insulated tension pole and one end pivot joint of described connecting lever; Driving mechanism, it is by the other end pivot joint of drive rod and described connecting lever.
Preferably, described strutting piece comprises: the rotation axis be connected with described connecting lever, the sleeve member being arranged on its lower end, the screw rod be connected with described sleeve member lower end, be arranged on hexagonal part in the middle part of described screw rod, be arranged on nut bottom described screw rod, described sleeve member lower end is ducted body, its inside is provided with internal thread, has wherein screwed screw rod.
Preferably, described hexagonal part is fixedly connected with described screw rod, and described base plate is set between described hexagonal part and described nut, and described nut is threaded with described screw rod lower end.
Preferably, it is characterized in that, the bottom of described insulator is provided with hollow cavity, and the upper end of described insulated tension pole is provided with a grade part, and extend in described cavity, and described spring is arranged between described shelves part and the top of described cavity.
Preferably, the lower end of described insulated tension pole is drawn from described cavity, and described ruler is arranged on the insulated tension pole below described spring, and its scale has in the inside and outside of described cavity.
The utility model compared to the beneficial effect of prior art is, the circuit breaker cart that a kind of contact overtravel provided is controlled, by circuit breaker cart every mutually on arrange have overtravel measurement mechanism, the overtravel distance of the every phase moving contact of direct reading, by the height adjusting strutting piece, the distance of opening between every phase arc control device moving contact and fixed contact is strictly consistent, effectively reduce the on/off switch time of circuit breaker cart and the dispersiveness of moving contact run duration, avoid due to the asynchrony of each phase moving contact on/off switch motion and cause the too high voltage of single-phase upper appearance to make contact ablation, improve break performance and the reliability of circuit breaker.Moreover, by measuring and adjust moving contact overtravel distance, avoid dynamic/static contact and to close a floodgate the problem such as not in place, simultaneously can the potential faults of Timeliness coverage arc control device and transmission mechanism, avoid causing serious electric power accident.The controlled circuit breaker cart structure of this kind of contact overtravel is simple, easy to operate, has practical value widely.
Accompanying drawing explanation
Fig. 1 be a kind of embodiment of the utility model structural representation;
Fig. 2 is the structural representation of described insulated tension pole assembly;
Fig. 3 is the structural representation schematic diagram of described strutting piece.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to specification word to make those skilled in the art.
As Figure 1-3, the circuit breaker cart that a kind of contact overtravel that the utility model provides is controlled, comprising:
Arc control device 1, it is built-in with moving contact and fixed contact, and the lower end of described moving contact is connected with moving conductive rod, and moving conductive rod is drawn from described arc control device 1 lower end; Transmission mechanism, it connecting lever 3 comprising insulated tension pole assembly 2 and be connected with its lower end, described insulated tension pole assembly 2 is longitudinally arranged on the lower end of described arc control device 1, it comprises: the insulator 22 be connected with described moving conductive rod exit, the insulated tension pole 23 being arranged on spring 21 bottom described insulator 22, being arranged on described spring 21 lower end, wherein, described insulated tension pole 23 is provided with ruler 24, for measuring the overtravel distance of moving contact; Described connecting lever 3 is arranged on strutting piece 5 upper end, and described strutting piece 5 is arranged on the base plate 6 of circuit breaker cart, and connecting lever 3 can around described strutting piece 5 left-right rotation, the lower end of described insulated tension pole 23 and one end pivot joint of described connecting lever 3; Driving mechanism 4, it is by the other end pivot joint of drive rod and described connecting lever 3, described driving mechanism 4 drives connecting lever 3 to rotate to drive described insulated tension pole assembly 2 to move up and down around strutting piece 5, so drive described moving contact near or away from described fixed contact, realize the on/off switch of circuit breaker cart.
Described strutting piece 5 comprises: the rotation axis 51 be connected with described connecting lever 3, the sleeve member 52 being arranged on its lower end, the screw rod 53 be connected with described sleeve member 52 lower end, be arranged on hexagonal part 55 in the middle part of described screw rod 53, be arranged on nut 56 bottom described screw rod 53, described connecting lever 3 moving axis 51 that rotates rotates freely, described sleeve member 52 lower end is ducted body, its inside is provided with internal thread, wherein screw screw rod 53, rotate described hexagonal part 55, make described screw rod 53 and described sleeve member 52 away from, open apart from reducing between moving contact and fixed contact; Make described screw rod 53 close with described sleeve member 52, opening apart from increasing between moving contact and fixed contact, thus the overtravel of adjustment circuit breaker cart moving contact.
Described hexagonal part 55 is fixedly connected with described screw rod 53, and described base plate 6 is set between described hexagonal part 55 and described nut 56, and described nut 56 is threaded with described screw rod 53 lower end, fixes to make strutting piece 5 and base plate 6 position.
The bottom of described insulator 22 is provided with hollow cavity, and the upper end of described insulated tension pole 23 is provided with a grade part, and extend in described cavity, and described spring 21 is arranged between described shelves part and the top of described cavity, for absorbing the overtravel of moving contact.
The lower end of described insulated tension pole 23 is drawn from described cavity, and with one end pivot joint of described connecting lever 3, described ruler 24 is arranged on the insulated tension pole 23 below spring 21, its scale has in the inside and outside of described cavity, circuit breaker cart is when combined floodgate and open position, and the difference of the registration that insulator 22 lower surface indicates on ruler 24 is the overtravel distance of moving contact.
Particularly, control the motion of driving mechanism 4, make circuit breaker cart on/off switch, when observing and be recorded in separating brake and closing position, the overtravel distance of each phase moving contact, contrast each overtravel difference gone up mutually, rotate corresponding hexagonal part 55, make screw rod 53 and described sleeve member 52 away from or close, connecting lever 3 is driven to move up or down, what adjust corresponding moving contact and fixed contact with this opens distance, makes to open apart from being strictly consistent between three-phase, circuit breaker cart normal operation input.The circuit breaker cart structure of this kind of design is simple, not only can the potential safety hazard of Timeliness coverage circuit breaker, the distance of opening between circuit breaker dynamic/static contact is made to remain on reasonable value, avoid the combined floodgate of dynamic/static contact not in place, and effectively can heighten the on/off switch synchronism of each phase of circuit breaker, improve break performance and the reliability of circuit breaker cart, there is practical value widely.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (5)
1. the circuit breaker cart that contact overtravel is controlled, is characterized in that, comprising:
Arc control device (1), it is built-in with moving contact and fixed contact;
Transmission mechanism, it connecting lever (3) comprising insulated tension pole assembly (2) and be connected with its lower end, described insulated tension pole assembly (2) is longitudinally arranged on the lower end of described arc control device (1), it is made up of the insulator (22) be connected with described moving contact, the spring (21) being arranged on described insulator (22) bottom, the insulated tension pole (23) that is arranged on described spring (21) lower end, wherein, described insulated tension pole (23) is provided with ruler (24); Described connecting lever (3) is arranged on strutting piece (5) upper end, described strutting piece (5) is arranged on base plate (6), the lower end of described insulated tension pole (23) and one end pivot joint of described connecting lever (3);
Driving mechanism (4), it is by the other end pivot joint of drive rod and described connecting lever (3).
2. the circuit breaker cart that contact overtravel as claimed in claim 1 is controlled, it is characterized in that, described strutting piece (5) comprising: the rotation axis (51) be connected with described connecting lever (3), be arranged on the sleeve member (52) of its lower end, the screw rod (53) be connected with described sleeve member (52) lower end, be arranged on the hexagonal part (55) at described screw rod (53) middle part, be arranged on the nut (56) of described screw rod (53) bottom, described sleeve member (52) lower end is ducted body, its inside is provided with internal thread, wherein screw screw rod (53).
3. the circuit breaker cart that contact overtravel as claimed in claim 2 is controlled, it is characterized in that, described hexagonal part (55) is fixedly connected with described screw rod (53), described base plate (6) is set between described hexagonal part (55) and described nut (56), and described nut (56) is threaded with described screw rod (53) lower end.
4. the circuit breaker cart that contact overtravel as claimed in claim 1 is controlled, it is characterized in that, the bottom of described insulator (22) is provided with hollow cavity, the upper end of described insulated tension pole (23) is provided with a grade part, and extending in described cavity, described spring (21) is arranged between described shelves part and the top of described cavity.
5. the circuit breaker cart that contact overtravel as claimed in claim 4 is controlled, it is characterized in that, the lower end of described insulated tension pole (23) is drawn from described cavity, described ruler (24) is arranged on the insulated tension pole (23) below described spring (21), and its scale has in the inside and outside of described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818788.2U CN204304291U (en) | 2014-12-22 | 2014-12-22 | The circuit breaker cart that a kind of contact overtravel is controlled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818788.2U CN204304291U (en) | 2014-12-22 | 2014-12-22 | The circuit breaker cart that a kind of contact overtravel is controlled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204304291U true CN204304291U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420818788.2U Expired - Fee Related CN204304291U (en) | 2014-12-22 | 2014-12-22 | The circuit breaker cart that a kind of contact overtravel is controlled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204304291U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374622A (en) * | 2015-12-23 | 2016-03-02 | 戴顿（重庆）高压开关有限公司 | Insulating pull rod, vacuum circuit breaker with insulating pull rod and method for monitoring wearing capacity of movable and static contacts of vacuum circuit breaker |
| CN112908796A (en) * | 2021-01-20 | 2021-06-04 | 云南电网有限责任公司电力科学研究院 | High-voltage test circuit breaker with adjustable contact movement distance |
| CN113433350A (en) * | 2020-03-23 | 2021-09-24 | 西安高压电器研究院有限责任公司 | Arc extinguish chamber open distance adjusting tool |
| CN113506703A (en) * | 2021-05-26 | 2021-10-15 | 平高集团有限公司 | Three-phase transmission mechanism and porcelain knob type circuit breaker |
-
2014
- 2014-12-22 CN CN201420818788.2U patent/CN204304291U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374622A (en) * | 2015-12-23 | 2016-03-02 | 戴顿（重庆）高压开关有限公司 | Insulating pull rod, vacuum circuit breaker with insulating pull rod and method for monitoring wearing capacity of movable and static contacts of vacuum circuit breaker |
| CN113433350A (en) * | 2020-03-23 | 2021-09-24 | 西安高压电器研究院有限责任公司 | Arc extinguish chamber open distance adjusting tool |
| CN113433350B (en) * | 2020-03-23 | 2024-03-08 | 西安高压电器研究院股份有限公司 | Explosion chamber opening adjustment frock |
| CN112908796A (en) * | 2021-01-20 | 2021-06-04 | 云南电网有限责任公司电力科学研究院 | High-voltage test circuit breaker with adjustable contact movement distance |
| CN113506703A (en) * | 2021-05-26 | 2021-10-15 | 平高集团有限公司 | Three-phase transmission mechanism and porcelain knob type circuit breaker |
| CN113506703B (en) * | 2021-05-26 | 2023-08-08 | 平高集团有限公司 | Three-phase transmission mechanism and knob insulator type circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |