CN215731470U - Three-phase mechanical linkage circuit breaker of hydraulic spring mechanism - Google Patents
Three-phase mechanical linkage circuit breaker of hydraulic spring mechanism Download PDFInfo
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- CN215731470U CN215731470U CN202122288013.1U CN202122288013U CN215731470U CN 215731470 U CN215731470 U CN 215731470U CN 202122288013 U CN202122288013 U CN 202122288013U CN 215731470 U CN215731470 U CN 215731470U
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Abstract
The utility model provides a hydraulic spring mechanism three-phase mechanical linkage circuit breaker, which comprises a hydraulic spring mechanism, a mechanical linkage structure, a mechanism box and a circuit breaking mechanism, wherein the mechanical linkage structure is positioned in the mechanism box, one end of the mechanical linkage structure is connected to the hydraulic spring mechanism, the other end of the mechanical linkage structure is connected to a circuit breaker body of the circuit breaking mechanism, and the hydraulic spring mechanism is electrically connected to a controller. The utility model relates to a hydraulic spring mechanism three-phase mechanical linkage circuit breaker which is a hydraulic spring mechanism three-phase mechanical linkage circuit breaker and guarantees three phases at the same time mechanically. Reasonable structure, stable performance, low production and manufacturing cost, high production efficiency in the production and manufacturing process and convenient maintenance and use.
Description
Technical Field
The utility model belongs to the technical field of high-voltage switches, and particularly relates to a three-phase mechanical linkage circuit breaker with a hydraulic spring mechanism.
Background
According to the requirements of 'notice of eighteen major anti-accident measures (revisions) of power grid printed by national power grid company Limited': the 252kV bus coupler (subsection), the main transformer and the high-voltage reactor circuit breaker should adopt three-phase mechanical linkage equipment. The three-phase mechanical linkage structure breaker can effectively reduce GIS and switchgear accidents. On the basis of the original circuit breaker, the hydraulic spring mechanism is used for replacing the original spring mechanism. The hydraulic spring mechanism connects the three-phase circuit breakers together through a three-phase linkage device to realize a three-phase mechanical linkage function. Mechanical characteristic parameters of the three-phase mechanical linkage structure are required: the breaker opening time, the breaker closing time, the breaker opening speed, the breaker closing speed, the breaker three-phase different phases, the breaker contact stroke, the breaker overshoot and the like are matched with the single-phase breaker. The no-load contact travel curve is within an envelope specified by reference to the mechanical travel characteristic. According to GB1984-2014, the type test project of replacing the operating mechanism is completed, and the type test project comprises the following steps: basic short circuit pattern T100s, short-time withstand current and peak withstand current test, mechanical life test, and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a three-phase mechanical linkage breaker with a hydraulic spring mechanism, so as to solve the problems of inconvenient installation, complex structure and unstable performance in the prior art.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a hydraulic spring mechanism three-phase machinery linkage circuit breaker, includes hydraulic spring mechanism, mechanical linkage structure, mechanism case and circuit breaking mechanism, and mechanical linkage structure is located mechanism incasement portion, and mechanical linkage structure one end is connected to hydraulic spring mechanism, and the other end is connected to circuit breaker body of circuit breaking mechanism, hydraulic spring mechanism electricity is connected to the controller.
Further, mechanical linkage structure is including all being connected to joint, the embrace clamp on the support, connecting rod, a pivot, guide, input turning arm, main shaft and a plurality of output turning arm, and the one end of joint is connected to hydraulic spring mechanism output through the embrace clamp, and the other end of joint is connected to the connecting rod through a pivot, and a pivot is located the guide way of guide, and the connecting rod other end is connected with the input turning arm, output turning arm, input turning arm are all fixed the cover and are connected to the main shaft, and the other end of every output turning arm is connected to a mechanism that opens circuit respectively.
Furthermore, the material of the guide piece is carbon steel.
Further, the number of the output crank arms is 3.
Further, the number of the circuit breaking mechanisms is 3.
Further, the circuit breaking mechanism further comprises a CB connecting rod and a CB connecting lever, the CB connecting rod and the CB connecting lever are installed inside the circuit breaker body, one end of the CB connecting rod is connected to the output connecting lever, and the other end of the CB connecting rod is connected with the CB connecting lever through a second shaft pin.
Furthermore, 3 CB connecting rod structures are the same, and length is adjustable.
Compared with the prior art, the hydraulic spring mechanism three-phase mechanical linkage circuit breaker has the following advantages:
(1) the hydraulic spring mechanism three-phase mechanical linkage circuit breaker is a hydraulic spring mechanism three-phase mechanical linkage circuit breaker and guarantees three phases at the same time mechanically. Reasonable structure, stable performance, low production and manufacturing cost, high production efficiency in the production and manufacturing process and convenient maintenance and use.
(2) According to the three-phase mechanical linkage circuit breaker with the hydraulic spring mechanism, the operating mechanism adopts the hydraulic spring mechanism, the three-phase mechanical linkage circuit breaker has the advantages of stable output characteristic, short response time, long service life, no maintenance and the like, the modular design is adopted, the maintenance is convenient and rapid, the guide piece adopts high-quality carbon steel, the three-phase mechanical linkage circuit breaker has excellent quenching and tempering characteristics, and the requirements on the hardness and the toughness of the guide groove can be met. The guide grooves adopt an integrated forming technology, and the consistency of the guide grooves on two sides is ensured.
(3) According to the three-phase mechanical linkage circuit breaker with the hydraulic spring mechanism, the tin bronze sleeve is adopted between the guide groove and the sliding shaft, and the three-phase mechanical linkage circuit breaker has the characteristics of wear resistance, lubrication, impact resistance and the like. The transmission connecting lever is cut into a plurality of parts after being integrally processed, supplies materials in a matched manner, ensures the coaxiality between the parts and is convenient to install and debug.
(4) The hydraulic spring mechanism three-phase mechanical linkage circuit breaker can be synchronously adjusted by adjusting the length of the connecting rod, so that the maintenance and overhaul time is reduced, the maintenance and overhaul efficiency is improved, the mechanical linkage structure is simple, and the reliability of equipment is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a structural side view of a three-phase mechanical linkage breaker of a hydraulic spring mechanism according to an embodiment of the present invention;
fig. 2 is a structural top view of a three-phase mechanical linkage breaker of a hydraulic spring mechanism according to an embodiment of the present invention;
fig. 3 is a schematic view of a three-phase mechanical linkage breaker structure of a hydraulic spring mechanism according to an embodiment of the present invention in an open state;
fig. 4 is a schematic diagram of a closing state of a three-phase mechanical linkage breaker structure of a hydraulic spring mechanism according to an embodiment of the present invention.
Description of reference numerals:
1. a hydraulic spring mechanism; 2. a joint; 3. clamping; 4. a connecting rod; 5. a first shaft pin; 6. a guide member; 7. inputting a crank arm; 8. a main shaft; 9. an output crank arm; 10. a CB connecting rod; 11. a CB crank arm; 12. a circuit breaker body; 13. a support; 14. and a mechanism box.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 4, a three-phase mechanical linkage breaker with a hydraulic spring mechanism comprises a hydraulic spring mechanism 1, a mechanical linkage structure, a mechanism box 14 and 3 breaking mechanisms, wherein the mechanical linkage structure is located inside the mechanism box 14, one end of the mechanical linkage structure is connected to the hydraulic spring mechanism 1, the other end of the mechanical linkage structure is connected to the breaking mechanisms, and the hydraulic spring mechanism 1 is electrically connected to a controller. The controller is in the prior art, can be a single chip microcomputer or a PLC (programmable logic controller), specific selection can be determined according to actual conditions, the output of the hydraulic spring mechanism 1 in the structure is linear motion, the output of the circuit breaking mechanism is also angular motion, and the linear motion is converted into the angular motion through a mechanical linkage structure. The hydraulic spring mechanism 1 may be of the prior art. In the present embodiment, the present invention is different from the prior art in that:
(1) the utility model relates to a three-phase mechanical linkage breaker of a hydraulic spring mechanism, which can ensure the synchronization of three phases mechanically. Reasonable structure, stable performance, low production and manufacturing cost, high production efficiency in the production and manufacturing process and convenient maintenance and use.
(2) According to the three-phase mechanical linkage circuit breaker with the hydraulic spring mechanism, the operating mechanism adopts the hydraulic spring mechanism, the three-phase mechanical linkage circuit breaker has the advantages of stable output characteristic, short response time, long service life, maintenance-free performance and the like, and the three-phase mechanical linkage circuit breaker adopts a modular design and is convenient and rapid to maintain.
(3) According to the three-phase mechanical linkage circuit breaker, the guide piece is made of high-quality carbon steel, so that the three-phase mechanical linkage circuit breaker has excellent quenching and tempering characteristics, and can meet the requirements of hardness and toughness of the guide groove. The guide grooves adopt an integrated forming technology, and the consistency of the guide grooves on two sides is ensured.
(4) According to the hydraulic spring mechanism three-phase mechanical linkage circuit breaker, the tin bronze sleeve is adopted between the guide groove and the sliding shaft, and the hydraulic spring mechanism three-phase mechanical linkage circuit breaker has the characteristics of wear resistance, lubrication, impact resistance and the like. The transmission connecting lever is cut into a plurality of parts after being integrally processed, supplies materials in a matched manner, ensures the coaxiality between the parts and is convenient to install and debug.
(5) The three-phase circuit breaker can be adjusted synchronously by adjusting the length of the connecting rod respectively, so that the maintenance and overhaul time is reduced, the maintenance and overhaul efficiency is improved, the mechanical linkage structure is simple, and the reliability of equipment is improved.
Mechanical linkage structure is including all being connected to joint 2 on the support 13, embrace and press from both sides 3, connecting rod 4, a pivot 5, guide 6, input connecting lever 7, main shaft 8 and a plurality of output connecting lever 9, and the one end that connects 2 is connected to the 1 output of hydraulic spring mechanism through embracing 3, and the other end that connects 2 is connected to connecting rod 4 through a pivot 5, and a pivot 5 is located the guide way of guide 6, and the connecting rod 4 other end is connected with input connecting lever 7, output connecting lever 9, input connecting lever 7 are all fixed the cover and are connected to main shaft 8, and the other end of every output connecting lever 9 is connected to a circuit-breaking mechanism respectively. Therefore, the work output by the hydraulic spring mechanism 1 is transmitted to the main shaft 8, the linear motion is converted into the corner motion, and the guide piece 6 in the main shaft plays a role in limiting and guiding when the mechanism outputs linearly. The main shaft 8 is used for converting a single input into a three-phase output, and three output crank arms 9 are fixed on the main shaft 8 at the middle input of the main shaft 8. The structure of the common main shaft 8 ensures the consistency of three-phase output, and mechanically ensures the three-phase synchronization of the circuit breaker.
The material of the guide piece 6 is carbon steel, and in the embodiment, the guide piece 6 is made of high-quality carbon steel, has excellent quenching and tempering characteristics, and can meet the requirements of hardness and toughness of the guide groove. The guide grooves adopt an integrated forming technology, and the consistency of the guide grooves on two sides is ensured.
The number of the output crank arms 9 is 3. Therefore, the three-phase mechanical linkage circuit breaker can be respectively connected with the three CB connecting rods 10 and can be guaranteed to be a 252kV hydraulic spring mechanism three-phase mechanical linkage circuit breaker.
The circuit breaking mechanism comprises a CB connecting rod 10, a CB connecting lever 11 and a circuit breaker body 12, the CB connecting rod 10 and the CB connecting lever 11 are installed inside the circuit breaker body 12, one end of the CB connecting rod 10 is connected to the output connecting lever 9, and the other end of the CB connecting rod is connected with the CB connecting lever 11 through a second shaft pin. In the present embodiment, there are three circuit breaking mechanisms, wherein the lengths of the 3 CB linkages 10 are adjustable, so that the lengths can be set to different lengths, and the specific lengths are determined according to actual conditions. When three-phase circuit breaker divide-shut brake time is asynchronous like this, the accessible is adjusted 3 CB connecting rod 10's length, changes the initial position of circuit breaker, adjusts divide-shut brake time, guarantees that the circuit breaker satisfies the requirement in the same phase.
The technical requirements of the hydraulic spring mechanism three-phase mechanical linkage breaker are as follows:
1. the assembly sequence is as follows: mechanism box back plate → transmission structure → mechanism box frame → bracket → hydraulic spring mechanism → connecting rod (carry out slow branch, slow closing operation, mechanical property debugging) → mechanism box upper cover → the crank arm box cover plate.
2. When the hydraulic spring mechanism 1 is butted with the mechanical linkage structure, a fastener at the connecting block is coated with a proper amount of medium-strength thread locking agent.
3. The fastening bolts without spring washers must be coated with a medium strength thread fastener.
4. The butt joint surface of the crank arm box and the mechanism box for outdoor operation and the butt joint surface of the crank arm box cover plate are coated with waterproof glue.
5. Waterproof glue is coated on bolts at the outdoor operation box body and the crank arm box.
6. The coating requirements are found in the guidance of waterproof adhesive coating operation of 0BN 000014.
The utility model provides a hydraulic spring mechanism three-phase machinery linkage circuit breaker's installation:
as shown in figures 1 and 2, a hydraulic spring mechanism 1 and a joint 2 are connected together through a clamp 3, the joint 2 and a connecting rod 4 are connected through a first axle pin 5, and the first axle pin 5 slides in a groove of a guide piece 6 along the direction of an output shaft of the mechanism, so that the movement direction of the output shaft of the mechanism is limited, and the mechanism is ensured to be only stressed axially and not to be subjected to radial force components. The other end of the connecting rod 4 is connected with an input crank arm 7, the input crank arm 7 drives a main shaft 8 to rotate, and the main shaft 8 drives an output crank arm 9 to rotate. The output crank arm 11 is connected to the CB crank arm 12 by the CB link 10. All transmission links are fixed on the bracket 13, and the mechanical linkage structure is arranged in the mechanism box 14.
The working principle of the hydraulic spring mechanism three-phase mechanical linkage circuit breaker is as follows:
as shown in fig. 3, in the switching-off state, the working personnel control the work of the hydraulic spring mechanism 1 through the control controller, the hydraulic spring mechanism 1 drives the connector 2 to move leftwards, thereby the connector 2 moves leftwards and drives the connecting rod 4 to move leftwards, thereby the connecting rod 4 moves leftwards and drives the input connecting lever 7 to drive the main shaft 8 to rotate clockwise, and simultaneously the output connecting lever 9 is driven to rotate clockwise, thereby the connecting lever 9 rotates clockwise and drives the output connecting lever 11 to rotate clockwise through the CB connecting rod 10, and the switching-on operation of the circuit breaker is completed. Otherwise, the opening operation of the circuit breaker can be completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a hydraulic spring mechanism three-phase machinery linkage circuit breaker which characterized in that: including hydraulic spring mechanism (1), mechanical linkage structure, mechanism case (14) and circuit breaking mechanism, mechanical linkage structure is located inside mechanism case (14), and mechanical linkage structure one end is connected to hydraulic spring mechanism (1), and the other end is connected to circuit breaker body (12) of circuit breaking mechanism, hydraulic spring mechanism (1) electricity is connected to the controller.
2. The hydraulic spring mechanism three-phase mechanical linkage circuit breaker as claimed in claim 1, characterized in that: mechanical linkage structure is including all being connected to joint (2) on support (13), embrace and press from both sides (3), connecting rod (4), a pivot (5), guide (6), input connecting lever (7), main shaft (8) and a plurality of output connecting lever (9), the one end of joint (2) is connected to hydraulic spring mechanism (1) output through embracing clamp (3), the other end of joint (2) is connected to connecting rod (4) through a pivot (5), and a pivot (5) are located the guide way of guide (6), the connecting rod (4) other end is connected with input connecting lever (7), output connecting lever (9), input connecting lever (7) all fixed cover connect to main shaft (8), the other end of every output connecting lever (9) is connected to a mechanism that opens circuit respectively.
3. The hydraulic spring mechanism three-phase mechanical linkage circuit breaker according to claim 2, characterized in that: the guide piece (6) is made of carbon steel.
4. The hydraulic spring mechanism three-phase mechanical linkage circuit breaker according to claim 2, characterized in that: the number of the output crank arms (9) is 3.
5. The hydraulic spring mechanism three-phase mechanical linkage circuit breaker as claimed in claim 1, characterized in that: the number of the circuit breaking mechanisms is 3.
6. The hydraulic spring mechanism three-phase mechanical linkage breaker as claimed in claim 5, wherein: the circuit breaking mechanism further comprises a CB connecting rod (10) and a CB connecting lever (11), the CB connecting rod (10) and the CB connecting lever (11) are mounted inside the circuit breaker body (12), one end of the CB connecting rod (10) is connected to the output connecting lever (9), and the other end of the CB connecting rod is connected with the CB connecting lever (11) through a second shaft pin.
7. The hydraulic spring mechanism three-phase mechanical linkage breaker as claimed in claim 6, wherein: the structure of the 3 CB connecting rods (10) is the same, and the length is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122288013.1U CN215731470U (en) | 2021-09-22 | 2021-09-22 | Three-phase mechanical linkage circuit breaker of hydraulic spring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122288013.1U CN215731470U (en) | 2021-09-22 | 2021-09-22 | Three-phase mechanical linkage circuit breaker of hydraulic spring mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN215731470U true CN215731470U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122288013.1U Active CN215731470U (en) | 2021-09-22 | 2021-09-22 | Three-phase mechanical linkage circuit breaker of hydraulic spring mechanism |
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| Country | Link |
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| CN (1) | CN215731470U (en) |
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2021
- 2021-09-22 CN CN202122288013.1U patent/CN215731470U/en active Active
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