CN204424154U - A kind of circuit breaker and transmission device thereof - Google Patents
A kind of circuit breaker and transmission device thereof Download PDFInfo
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- CN204424154U CN204424154U CN201520075364.6U CN201520075364U CN204424154U CN 204424154 U CN204424154 U CN 204424154U CN 201520075364 U CN201520075364 U CN 201520075364U CN 204424154 U CN204424154 U CN 204424154U
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- kinematic link
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- circuit breaker
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Abstract
The utility model relates to circuit breaker and transmission device thereof, transmission device comprises mechanism's output shaft that pivot center extends in left-right direction, also comprise three kinematic links of extending in left-right direction of spaced apart pivot center in left-right direction, transmission device also comprises the main shaft be arranged on three kinematic links, main shaft and mechanism's output shaft be arranged in parallel, and mechanism's output shaft is in transmission connection by output connecting rod and one of them kinematic link.The utility model provides a kind of transmission device by main shaft increase moment of inertia and uses the circuit breaker of this transmission device.
Description
Technical field
The utility model relates to circuit breaker and transmission device thereof.
Background technology
Primary cut-out is a kind of electric equipment the most key in electric power system, as control and protection equipment, is requisite equipment in power plant and electric substation's power distribution equipment.For indoor high-voltage vacuum circuit breaker, be generally made up of the parts that operating mechanism, transmission device and vacuum interrupter three is main, current spring operating mechanism occupies the staple market share of domestic and international operating mechanism.Existing breaker structure is as shown in Figure 1-2: the spring operating mechanism 1 comprising framework 7 and upper setting thereof, transmission device and vacuum interrupter, vacuum interrupter is arranged in circuit breaker polar 9, transmission device comprises the main shaft 2 that axis extends in left-right direction, main shaft also uses as mechanism's output shaft of spring operating mechanism simultaneously, main shaft is provided with power input connecting lever, spring operating mechanism inputs strange arm driving main shaft around own axis by power, transmission device also comprises three spaced apart kinematic links 4 in left-right direction, kinematic link rotates and is assemblied on framework 7, the input of each kinematic link is in transmission connection with main shaft 2 respectively by each self-corresponding output connecting rod 3, the output of each kinematic link is connected with the moving contact of each phase circuit breaker respectively by each self-corresponding insulated tension pole 11, kinematic link is provided with tripping spring 6.Figure middle term 8 represents buffer; Item 10 represents the rotating shaft of kinematic links.During use, spring operating mechanism drives main shaft around own axis by power input connecting lever, and main shaft drives the action of each phase moving contact respectively by output connecting rod and corresponding kinematic link.Existing this transmission device Problems existing is: take main shaft as the moment of inertia of the transmission device of core be one of key factor affecting breaker mechanic property, the moment of inertia of rational configuration transmission device can improve the mechanical performance such as divide-shut brake speed, closing rebound of circuit breaker, because the main shaft output inertia in existing transmission device is less, therefore the main way configuring transmission device moment of inertia is again main shaft, insulated tension pole place adds specific counterweight part, do the number of spare parts both having added circuit breaker like this, again reduce the reliability of system; And main shaft adopts the arrangement of fixed-axis rotation, the length of main shaft longer (main shaft need with three kinematic link transmissions and cause main axis length longer), need on main shaft, configure a lot of rotational support part, complex structure.
Utility model content
The purpose of this utility model is to provide a kind of transmission device being increased moment of inertia by main shaft; The purpose of this utility model is also to provide a kind of circuit breaker using this transmission device.
In order to solve the problem, in the utility model, the technical scheme of transmission device is:
Circuit breaker and transmission device, comprise mechanism's output shaft that pivot center extends in left-right direction, also comprise three kinematic links of extending in left-right direction of spaced apart pivot center in left-right direction, transmission device also comprises the main shaft be arranged on three kinematic links, main shaft and mechanism's output shaft be arranged in parallel, and mechanism's output shaft is in transmission connection by output connecting rod and one of them kinematic link.
Mechanism's output shaft is in transmission connection by the described kinematic link exporting connecting rod and centre position, the described kinematic link of two side positions is provided with the spring connecting structure for being connected with the tripping spring of respective circuit breakers.
The end of the described kinematic link in described output connecting rod and centre position is in transmission connection, and spring connecting structure is in the end of the described kinematic link of two side positions.
In the utility model, the technical scheme of circuit breaker is:
Circuit breaker, comprise operating mechanism, transmission device and three arc control device, transmission device comprises mechanism's output shaft that the pivot center that driven by described operating mechanism extends in left-right direction, transmission device also comprises three kinematic links of extending in left-right direction of spaced apart pivot center in left-right direction, each kinematic link is in transmission connection with the moving contact of each arc control device respectively, transmission device also comprises the main shaft be arranged on three kinematic links, main shaft and mechanism's output shaft be arranged in parallel, and mechanism's output shaft is in transmission connection by output connecting rod and one of them kinematic link.
Mechanism's output shaft is in transmission connection by the described kinematic link exporting connecting rod and centre position, and the described kinematic link of two side positions is provided with spring connecting structure, and circuit breaker also comprises the tripping spring be connected on each spring connecting structure.
The end of the described kinematic link in described output connecting rod and centre position is in transmission connection, and spring connecting structure is in the end of the described kinematic link of two side positions.
The beneficial effects of the utility model are: operating mechanism lead agency output shaft is around own axis, mechanism's output shaft drives one of them kinematic link to rotate by exporting connecting rod, kinematic link drives main shaft around the axis oscillating of kinematic link in rotation process, main shaft drives two other kinematic link to rotate simultaneously, thus realize the closing operation of three arc control device, main shaft in the utility model and mechanism's output shaft are provided separately, main shaft can increase the output inertia of transmission device in kinematic link swing process, therefore do not need to arrange other counterweight part, ensure that the reliability of transmission device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model background technology;
Fig. 2 is that Fig. 1 dismantles the end view after framework side plate;
Fig. 3 is the structural representation of an embodiment of circuit breaker in the utility model;
Fig. 4 is that Fig. 3 dismantles the end view after framework side plate.
Embodiment
The embodiment of circuit breaker is as shown in Fig. 3 ~ 4: comprise the operating mechanism 1 of framework 7 and upper setting thereof, transmission device and three arc control device, in the present embodiment, operating mechanism is spring operating mechanism, and arc control device are arranged in circuit breaker polar 9.Transmission device comprises mechanism's output shaft 2 that the pivot center that driven by operating mechanism extends in left-right direction, mechanism's output shaft is provided with the power be in transmission connection with operating mechanism and inputs connecting lever, transmission device also comprises three kinematic links 4 of extending in left-right direction of spaced apart pivot center in left-right direction, each kinematic link is in transmission connection with the moving contact of each arc control device respectively by corresponding insulated tension pole 11, each kinematic link is rotated by rotating shaft 10 and is assemblied on framework, transmission device also comprises the main shaft 5 be threaded onto on three kinematic links, main shaft 5 and mechanism's output shaft 2 be arranged in parallel, mechanism's output shaft is in transmission connection with the end of the kinematic link in centre position by exporting connecting rod 3, the kinematic link of two side positions is provided with spring connecting structure, spring connecting structure is arranged at the end of kinematic link, circuit breaker also comprises the tripping spring 6 be connected on each spring connecting structure.Figure middle term 8 represents buffer, mechanism's output shaft is provided with the buffer connecting lever be connected with buffer.
During use, operating mechanism inputs connecting lever lead agency output shaft around own axis by power, mechanism's output shaft is by exporting connecting rod by transmission of power to the kinematic link in centre position, the kinematic link in centre position is around own axis, main shaft swings with the kinematic link in centre position, meanwhile main shaft also drives other two kinematic links to rotate, thus it is dynamic to realize three-phase, the closing operation of fixed contact, while closing a floodgate, tripping spring energy storage, when tripping spring releases energy, the kinematic link of two side positions drives the kinematic link in centre position to realize sub-switching operation by main shaft.Transmission device in the utility model provides moment of inertia by main shaft, without the need to arranging other counterweight part, decreases amount of parts, improves connecting-disconnecting function and the reliability of circuit breaker; Can by arranging at the diverse location place of kinematic link the adjustment that installing hole realizes main shaft position on kinematic link, the drive connection of transmission device is not affected to adjust moment of inertia, thus can the mechanical performance such as divide-shut brake speed, closing rebound of optimized breaker, improve the reliability of circuit breaker; In the utility model, mechanism's output shaft is a rotating part, but mechanism's output shaft only needs and one of them kinematic link transmission, what therefore the length of mechanism's output shaft can be done is shorter, which reduces quantity structure output axle being needed to the rotational support part arranged, while simplified structure complexity, the cost of manufacture of product can also be reduced; Tripping spring and output connecting rod all can be in transmission connection with the end of corresponding kinematic link simultaneously, add driving torque.
In other embodiment of this circuit breaker: mechanism's output shaft also can be in transmission connection by one of them kinematic link exporting connecting rod and two side positions; Kinematic link can also be arranged the elongated hole extended along kinematic link radial direction, main shaft is bolted vibrational power flow in elongated hole, is realized the continuous adjustment of main spindle's by the movement of main shaft in elongated hole; Spring operating mechanism can also be replaced by other operating mechanism such as hydraulic actuating mechanism or electromagnetic operating mechanism.
The embodiment of transmission device is as shown in Fig. 3 ~ 4: the concrete structure of transmission device is identical with the transmission device described in above-mentioned each circuit breaker embodiment, is not described in detail in this.
Claims (6)
1. the transmission device of circuit breaker, comprise mechanism's output shaft that pivot center extends in left-right direction, also comprise three kinematic links of extending in left-right direction of spaced apart pivot center in left-right direction, it is characterized in that: transmission device also comprises the main shaft be arranged on three kinematic links, main shaft and mechanism's output shaft be arranged in parallel, and mechanism's output shaft is in transmission connection by output connecting rod and one of them kinematic link.
2. transmission device according to claim 1, it is characterized in that: mechanism's output shaft is in transmission connection by the described kinematic link exporting connecting rod and centre position, the described kinematic link of two side positions is provided with the spring connecting structure for being connected with the tripping spring of respective circuit breakers.
3. transmission device according to claim 2, is characterized in that: the end of the described kinematic link in described output connecting rod and centre position is in transmission connection, and spring connecting structure is in the end of the described kinematic link of two side positions.
4. circuit breaker, comprise operating mechanism, transmission device and three arc control device, transmission device comprises mechanism's output shaft that the pivot center that driven by described operating mechanism extends in left-right direction, transmission device also comprises three kinematic links of extending in left-right direction of spaced apart pivot center in left-right direction, each kinematic link is in transmission connection with the moving contact of each arc control device respectively, it is characterized in that: transmission device also comprises the main shaft be arranged on three kinematic links, main shaft and mechanism's output shaft be arranged in parallel, mechanism's output shaft is in transmission connection by output connecting rod and one of them kinematic link.
5. circuit breaker according to claim 4, it is characterized in that: mechanism's output shaft is in transmission connection by the described kinematic link exporting connecting rod and centre position, the described kinematic link of two side positions is provided with spring connecting structure, and circuit breaker also comprises the tripping spring be connected on each spring connecting structure.
6. circuit breaker according to claim 5, is characterized in that: the end of the described kinematic link in described output connecting rod and centre position is in transmission connection, and spring connecting structure is in the end of the described kinematic link of two side positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075364.6U CN204424154U (en) | 2015-02-03 | 2015-02-03 | A kind of circuit breaker and transmission device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075364.6U CN204424154U (en) | 2015-02-03 | 2015-02-03 | A kind of circuit breaker and transmission device thereof |
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| Publication Number | Publication Date |
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| CN204424154U true CN204424154U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520075364.6U Active CN204424154U (en) | 2015-02-03 | 2015-02-03 | A kind of circuit breaker and transmission device thereof |
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| CN (1) | CN204424154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658814A (en) * | 2015-02-03 | 2015-05-27 | 天津平高智能电气有限公司 | Circuit breaker and transmission device thereof |
| CN106601541A (en) * | 2017-01-11 | 2017-04-26 | 天津平高智能电气有限公司 | Circuit breaker |
-
2015
- 2015-02-03 CN CN201520075364.6U patent/CN204424154U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658814A (en) * | 2015-02-03 | 2015-05-27 | 天津平高智能电气有限公司 | Circuit breaker and transmission device thereof |
| CN104658814B (en) * | 2015-02-03 | 2017-09-26 | 天津平高智能电气有限公司 | breaker and its transmission device |
| CN106601541A (en) * | 2017-01-11 | 2017-04-26 | 天津平高智能电气有限公司 | Circuit breaker |
| CN106601541B (en) * | 2017-01-11 | 2018-11-09 | 天津平高智能电气有限公司 | A kind of breaker |
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| GR01 | Patent grant |