CN104021954B - A kind of breaker mechanical formula operating mechanism - Google Patents
A kind of breaker mechanical formula operating mechanism Download PDFInfo
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- CN104021954B CN104021954B CN201310063106.1A CN201310063106A CN104021954B CN 104021954 B CN104021954 B CN 104021954B CN 201310063106 A CN201310063106 A CN 201310063106A CN 104021954 B CN104021954 B CN 104021954B
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- 230000005540 biological transmission Effects 0.000 claims description 53
- 238000004146 energy storage Methods 0.000 claims description 28
- 239000003831 antifriction material Substances 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 230000007774 longterm Effects 0.000 description 4
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- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The invention discloses a kind of breaker mechanical formula operating mechanism, comprise running part module M1 and spring section module M2, wherein, described spring section module M2 is provided with switching-in spring (12) and tripping spring (11), wherein, and described switching-in spring (12) and tripping spring (11) are cylindrically coiled springs, using cartridge type arrangement altogether between the two, the described switching-in spring (12) being relatively large in diameter is enclosed within the outside of the less described tripping spring (11) of diameter.This mechanical actuator is mainly used in high pressure or medium voltage breaker, and the program overcomes the problem that the operating mechanism volume on existing chopper is excessive, in one embodiment, it can make the thickness of operating mechanism be reduced to 300mm by existing 500mm, has preferable technique effect.
Description
Technical Field
The invention relates to a compact spring energy-storing mechanical operating mechanism for a high-voltage and medium-voltage power system circuit breaker.
Background
The circuit breaker is one of the most important elements in the power system, the closing and opening of the circuit breaker are driven by an operating mechanism, and a mechanical operating mechanism with spring energy storage is the most applied circuit breaker operating mechanism in the power system. Generally, the energy storage components in such an operating mechanism are a closing spring and an opening spring, the operating mechanism further includes an operating component for converting energy of the closing spring into closing power and storing energy in the opening spring, and the operating component also has a function of converting energy of the opening spring into opening power.
Spring operating mechanisms equipped with circuit breakers in existing high-voltage and medium-voltage power systems generally employ connecting rods to connect compression springs with crank arms on actuating shafts, and pivot pins capable of rotating are arranged at two ends of the connecting rods to satisfy the swinging motion of the connecting rods.
As the energy supplied by the actuator increases, a larger compression spring is installed in the actuator, typically 26mm in wire diameter, 200mm in spring pitch diameter, and 500mm in spring free length. The actuator with a spring of this size is generally bulky and, especially when a linkage is used to connect the spring, it is necessary to keep one end of the spring flush with one end of the actuator transmission, i.e. in series, so that the overall length of the actuator is extended, typically by 800 mm and 1000mm of the length of the entire actuator.
In addition, the existing typical operating mechanism is generally arranged in a way that a closing spring and an opening spring are arranged in parallel, the thickness of the operating mechanism is further increased by the two parallel springs, and the thickness of a typical product is 500 mm.
Disclosure of Invention
The invention aims to solve the technical problem of large size of an operating mechanism in the background technology, and therefore, the invention provides a mechanical operating mechanism of a circuit breaker, which can solve the problem of large size of the operating mechanism.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a circuit breaker mechanical type operating device, contains transmission part module M1 and spring part module M2, be equipped with closing spring 12 and separating brake spring 11 in the spring part module M2, wherein, just closing spring 12 and separating brake spring 11 are cylindrical helical spring, adopt cylinder type arrangement between the two, and the diameter is great closing spring 12 cover is less in the diameter separating brake spring 11's outside.
After the technical scheme is adopted, the problem of overlarge volume of the mechanical operating mechanism of the circuit breaker on the existing circuit breaker is solved, and in the embodiment, the thickness of the operating mechanism can be reduced to 300mm from the existing 500mm, so that the circuit breaker has a better technical effect.
Further, it is preferable that a spring isolating cylinder 10 is provided between the closing spring 12 and the opening spring 11.
Further, it is preferable that the closing spring 12 is provided on a closing spring support 14, and a closing spring guide ring 16 made of an anti-wear material is provided in the closing spring support 14; the opening spring 11 is arranged on an opening spring support 13, and an opening spring guide ring 15 made of antifriction materials is arranged outside the opening spring support 13.
Further, it is preferable that the transmission section module M1 and the spring section module M2 are arranged in parallel with each other, the spring section module M2 is arranged at a side of the transmission section module M1, and the sides of the transmission section module M1 and the spring section module M2 are overlapped with each other.
Further, it is preferable that a support 9 for installing the closing spring 12 and the opening spring 11 is further provided in the spring part module M2, the transmission part module M1 includes an operation output shaft 3, an energy storage transmission shaft 6, and wall plates 1 and 1 'for supporting the shaft, a link plate assembly and a chain assembly for connecting the shaft and the spring, and a plurality of guide wheels 8 for controlling the direction of the transmission pulling force of the chain assembly, and the plurality of guide wheels respectively include guide wheels for controlling the closing spring chains 7 and 7' and the opening spring chains 4;
the connecting plate assembly comprises an operation output shaft connecting plate 2 and energy storage transmission shaft connecting plates 5 and 5 ', and the chain assembly comprises an opening spring chain 4 and closing spring chains 7 and 7'. Further, the preferable structure is that the operating output shaft connecting plate 2 on the operating output shaft 3 is connected with the opening spring support 13 and the opening spring 11 through one opening spring chain 4 located at the middle position of the operating mechanism, and the energy storage transmission shaft connecting plates 5 and 5 'on the energy storage transmission shaft 6 are connected with the closing spring support 14 and the closing spring 12 through two closing spring chains 7 and 7' located at two sides of the operating mechanism respectively.
Further, it is preferred that the wall panels 1, 1' of the drive section module M1 are located on both sides of the drive section module M1, and that the drive section module M1 forms a sandwich-type mechanism.
Further, it is preferable that the plurality of guide wheels 8 are provided in the holder 9 of the spring portion module M2;
the guide pulley 8 for controlling the closing spring chain 7, 7' and the guide pulley 8 for controlling the opening spring chain 4 are arranged at one end of the spring section module M2 and pass through the plurality of guide pulleys 8 on one mounting shaft;
or the guide pulley 8 controlling the closing spring chain 7, 7' and the guide pulley 8 controlling the opening spring chain 4 are arranged at both ends of the spring part module M2.
Further, it is preferable that the guide pulley 8 for controlling the closing spring chain 7, 7' and the guide pulley 8 for controlling the opening spring chain 4 are disposed at one end of the spring section module M2, and pass through the plurality of guide pulleys 8 on one mounting shaft, wherein,
the connecting line of the connecting points of the closing spring support 14 and the closing spring chains 7 and 7' is arranged obliquely relative to the mounting shaft of the guide wheel 8, and the inclination angle is 45 degrees +/-15 degrees
Further, it is preferable that the pitch of the opening spring chain 4 and the closing spring chain 7, 7' is 0.5 inch to 1.5 inches.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The present invention will be described in detail below with reference to the accompanying drawings so that the above advantages of the present invention will be more apparent. Wherein,
FIG. 1 is a front view of a specific embodiment of the actuator of the present invention, and references in this specification to the length of the actuator refer to the dimension of the actuator in the left-right direction of the view, and to the thickness of the actuator refer to the dimension of the actuator in the rear direction of the plane of the view;
FIG. 2 is a side view of the operating mechanism of the present invention positioned in a right side view of the first perspective projection relative to FIG. 1, showing the closing spring chains disposed on either side of the operating mechanism;
FIG. 3 is a further embodiment of the invention with guide wheels disposed at either end of the operating mechanism;
fig. 4 is a schematic view of the connection of the transmission part module M1 and the spring part module M2 of the operating mechanism of the present invention.
The names of the components and parts in the figures are as follows:
1. 1' wall panel
2 operating output shaft connecting plate
3 operating the output shaft
4-opening spring chain
5. 5' energy storage transmission shaft connecting plate
6 energy storage transmission shaft
7. 7' closing spring chain
8 guide wheel
9 support
10 spring isolation cylinder
11 opening spring
12 closing spring
13 separating brake spring support
14 closing spring support
15 switching-off spring guide ring
16 closing spring guide ring
17 stop shoulder
M1 drive section module
M2 spring part module
One end of the B1 operating mechanism close to the energy storage shaft
One end of the B2 operating mechanism close to the output shaft
S1 operating mechanism closing spring chain has one side of two guide pulleys
S2 operating mechanism closing spring chain has one side of a guide wheel
N operating mechanism wall panel inner middle position
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
Specifically, the present invention provides a solution to the problem of the prior art that makes the actuator bulky, both the overall length of the actuator increases due to the use of the link and the thickness of the actuator increases due to the parallel arrangement of two springs.
Generally speaking, the closing spring of circuit breaker operating device is for separating brake spring energy storage at closing operation in-process, and like this, closing spring's elasticity and volume are great than separating brake spring, if with closing spring cover in the separating brake spring outside, just can reduce the problem of operating device thickness better.
Therefore, the invention provides a scheme which mainly comprises the following steps: a mechanical operating mechanism of a circuit breaker is used for driving the circuit breaker in a high-voltage or medium-voltage power system and comprises a transmission part module M1 and a spring part module M2, wherein the spring part module M2 comprises a closing spring 12 and an opening spring 11, and the closing spring 12 is sleeved outside the opening spring 11.
The problem of the operating mechanism thickness increase caused by the parallel arrangement of the two springs can be improved by adopting the invention, and the thickness can be reduced from 500mm to 300mm by adopting a typical design scheme.
In addition, aiming at the problem that the length of the operating mechanism is increased due to the fact that the acting part is connected with the spring part in series, the invention changes the arrangement mode of the spring part and the transmission part from series connection to parallel connection by introducing a chain capable of changing the pulling force direction instead of a connecting rod incapable of changing the pulling force direction, namely the spring part is arranged on the side edge of the transmission part of the operating mechanism, so that the length of the transmission part is overlapped with the length of the spring part.
For this purpose, the transmission-section module M1 and the spring-section module M2 are arranged in parallel with one another, the spring-section module M2 is arranged on the side of the transmission-section module M1, and the sides of the transmission-section module M1 and the spring-section module M2 coincide with one another.
The spring part module M2 is further provided with a bracket 9 for mounting the closing spring 12 and the opening spring 11, the transmission part module M1 includes an operation output shaft 3, an energy storage transmission shaft 6, wall plates 1 and 1 'for supporting the shafts, a connecting plate assembly and a chain assembly for connecting the shafts and the springs, and a plurality of guide wheels 8 for controlling the direction of the transmission pulling force of the chain assembly, wherein the guide wheels respectively include guide wheels for controlling a closing spring chain 7 and 7' and a opening spring chain 4;
the connecting plate assembly comprises an operation output shaft connecting plate 2 and energy storage transmission shaft connecting plates 5 and 5 ', and the chain assembly comprises an opening spring chain 4 and closing spring chains 7 and 7'. Further, the preferable structure is that the operating output shaft connecting plate 2 on the operating output shaft 3 is connected with the opening spring support 13 and the opening spring 11 through one opening spring chain 4 located at the middle position of the operating mechanism, and the energy storage transmission shaft connecting plates 5 and 5 'on the energy storage transmission shaft 6 are connected with the closing spring support 14 and the closing spring 12 through two closing spring chains 7 and 7' located at two sides of the operating mechanism respectively.
The total length of the operating mechanism can be significantly reduced in this embodiment, and the total length of the spring operating mechanism can be typically reduced from 800-1000mm to 600 mm.
In addition, when the two schemes are adopted, the energy of the closing spring is large, the spring force is also large, the existing spring operating mechanism generally adopts a connecting plate which is installed by a single-side cantilever and connected with the spring, the defects are that the stress is large, the single-side cantilever enables the wall plate far away from the connecting plate side to hardly bear the bearing capacity, the whole bearing capacity acts on the wall plate close to the connecting plate side, the stress on the wall plate of the operating mechanism is unreasonable, and the bearing and the support on the single-side wall plate are easily damaged after long-term operation.
Therefore, the scheme adopted in the novel operating mechanism is that the connecting plates are arranged on the outer sides of the two wall plates and are connected with the closing spring seat through chains, so that acting force is uniformly distributed on the bearings and the supports of the two wall plates, and the problem of unbalanced stress in the existing operating mechanism is thoroughly solved.
Meanwhile, the force of the closing spring is divided into two parts, and the stress of the unilateral connecting plate is only half of the original stress. The design of the invention improves the stress distribution of the bearing of the upper support of the wall plate, and can improve the long-term operation reliability of the operating mechanism.
The detailed description of the present invention will be made in conjunction with the above inventive concept.
As shown in fig. 1, the operating mechanism of the present invention mainly includes a transmission part module M1 and a spring part module M2, and the most important point of the present invention is to sleeve the closing spring 12 outside the opening spring 11 in the spring part module M2. As can be seen from fig. 1, this arrangement of the springs inside and outside saves about 30% of space compared to a parallel arrangement of the springs.
In addition, as the closing spring 12 is sleeved outside the opening spring 11, and the closing spring 12 and the opening spring 11 move in the action process of the operating mechanism, a spring isolation cylinder 10 is arranged between the inner spring and the outer spring in order to avoid mutual friction and collision of the inner spring and the outer spring in the movement process.
Meanwhile, a closing spring guide ring 16 made of an antifriction material is provided in the closing spring support 14, and a separating spring guide ring 15 made of an antifriction material is provided outside the separating spring support 13, thereby further reducing the kinetic friction force.
The spring section module M2 of the present invention is described, and in particular, the function of the spring section module M2 is to accommodate the closing spring 12 and the opening spring 11 and to provide a proper spring tension in cooperation with the movement of the link plate in the transmission section module M1. The above-mentioned spring is an energy storage component of the compact spring operating mechanism of this embodiment, and the energy for driving the circuit breaking operation and the switching-off operation by the operating mechanism comes from both the two springs, wherein, the peripheries of the switching-on spring 12 and the switching-off spring 11 are supporting and connecting components, and mainly include a bracket 9, a spring isolation cylinder 10, a switching-off spring support 13, a switching-on spring support 12, a switching-off spring chain 4, and switching-on spring chains 7, 7'.
In the operation process of the operating mechanism, one end of the closing spring 12 is pressed against the inner side of the bracket 9 by virtue of elasticity and is kept still all the time, and the other end of the closing spring is pressed against the closing spring support 14 and moves along with the closing spring support. In order to ensure smooth movement, a closing spring guide ring 16 is installed inside the closing spring support 14.
The upper surface of the closing spring support 14 is fixedly connected with two closing spring chains 7 and 7' through connecting bolts and joints, the closing spring support 14 can be moved and the closing spring 12 can be compressed by pulling the chains, and the pulling force from the chains is converted into the internal energy of the spring and stored in the closing spring 12.
In the energy storage process of the operating mechanism, the motor in the transmission part module M1 drives the energy storage transmission shaft to rotate through the reduction gear, the energy storage transmission shaft connecting plates 5 and 5 'on the shaft rotate together, and the two closing spring chains 7 and 7' are pulled to realize energy storage. During the energy storage, the closing spring support 14 moves to the right in fig. 1, compressing the spring.
When the energy storage of the operating mechanism is finished, the closing operation can be carried out. After a closing tripping element in the transmission part module M1 is started, the closing spring support 14 moves leftward in fig. 1, pulls two closing spring chains 7 and 7 ', changes the pulling direction through the guide wheel 8, and then makes the energy storage transmission shaft connecting plates 5 and 5' rotate counterclockwise around the energy storage transmission shaft 6, and drives the cam on the shaft to press the roller connected with the operation output shaft 3, so that the operation output shaft 3 rotates clockwise, and drives the operation connecting lever and the breaker moving contact to move, thereby realizing the closing of the breaker. Meanwhile, the operation output shaft connecting plate 2 positioned in the middle part N of the operation mechanism moves together with the operation output shaft 3, and the opening spring chain 4 positioned in the middle part N of the operation mechanism is pulled to move.
One end of the opening spring 11 is fixed with the inner side of the bracket 9 by elasticity and always keeps fixed, and the other end of the opening spring is pressed on the opening spring support 13 and moves along with the opening spring support 13. In order to ensure smooth movement, a brake separating spring guide ring 15 is arranged outside the brake separating spring support 13. The middle of the opening spring support 13 is fixedly connected with an opening spring chain 4 through a connecting bolt and a joint, the opening spring support 13 can be moved and the opening spring 11 can be compressed by pulling the chain, and the pulling force from the chain is converted into the internal energy of the spring and stored in the opening spring 11.
In the closing process, the opening spring chain 4 pulls the opening spring support 13 to move rightwards in the figure 1, the opening spring 11 is compressed, the pulling force from the chain is converted into the internal energy of the spring and stored in the opening spring 11, and the energy is stored for the next step of opening the circuit breaker.
After the operating mechanism completes switching on, switching-off operation can be carried out. After the opening tripping element of the transmission part module M1 is started, the opening spring support 13 moves leftward in fig. 1, pulls the opening spring chain 4 located in the middle part N of the operating mechanism, changes the pulling direction through the guide wheel 8, and then makes the operating output shaft connecting plate 2 rotate counterclockwise around the operating output shaft 3, and drives the operating crank arm and the breaker moving contact on the shaft to move, so as to realize the opening of the breaker.
In order to support the reaction force generated by the spring force during the charging, closing and opening processes, the operation output shaft 3 and the charging transmission shaft 6 need to be reliably supported on the two wall plates 1 and 1'. In order to achieve the smallest structural dimensions to withstand the greatest bearing forces, the loads must be distributed as uniformly as possible on the two wall plates 1, 1', and an unbalanced construction requires increased strength of the components and does not allow a compact design.
In the embodiment of the invention as shown in fig. 1, the force points of the two springs are evenly distributed in the operating mechanism. Firstly, the opening spring chain 4 is arranged in the middle part N of the operating mechanism, the distance between the opening spring chain 4 and the wall plates 1 and 1 'on the two sides is equal, and the pulling force of the opening spring chain 4 is uniformly distributed on the two wall plates 1 and 1'. Secondly, two chains connected with the closing springs are designed, the two closing spring chains 7 and 7 ' are arranged on the outer sides of the wall plates 1 and 1 ' in the directions of S1 and S2, a closing cam in an operating mechanism transmission part module M1 is arranged in the middle of the wall plates 1 and 1 ', the structure is a most reasonable supporting structure in a mechanical system, the stress of bearing supports on the two wall plates is completely the same, and the stress on the two sides is balanced, so that the structure is an ideal stress shaft structure.
In order to save space even further, it can be seen in fig. 2 that the two closing spring chains 7, 7 'are not arranged on the outermost side of the operating mechanism, and the connecting line of the closing spring support 14 with the connecting points of the two closing spring chains 7, 7' is arranged obliquely with respect to the mounting axis of the guide wheel 8 by an angle of 45 ° ± 15 °. In the case of the typical dimension inclination angle of 45 °, the dimension of the distance between the two mounting points is reduced to 198mm and 41% in fig. 2 when the distance between the two mounting points is 280 mm. In summary, the two closing spring chains 7 and 7' are obliquely arranged, so that the thickness of the operating mechanism can be obviously reduced, and a compact operating mechanism is designed.
In the construction shown in fig. 4, the connection point is designed with a stop shoulder 17 in order to ensure that the spring part module M2 and the transmission part module M1 are connected in their entirety and then are operated without relative displacement. After the overall connection has been made, the pressure of the connecting bolt acts directly on the stop shoulder 17, and the pulling force of the chain is transmitted directly to the stop shoulder 1 during operation, both in such a direction that the spring part module M2 and the transmission part module M1 are connected more firmly together, and as long as the stop shoulder 17 is not damaged, there is no relative movement between the two parts. And under the condition that the traditional plane connecting structure is stressed greatly and has vibration, relative displacement is easy to occur, finally, the connecting bolt bears shearing force, the bolt can be cut off after long-term operation, and the operating mechanism completely fails.
In the present invention, in order to control the direction of the spring tension, the chains are designed in a transmission system, and three chains of the closing spring chains 7, 7' and the opening spring chain 4 are shared in the operating mechanism. Chains are common elements in mechanical transmission and are various, but when applied to an operating mechanism, the chains have the characteristic of reliable operation under long-term heavy-load working conditions. The preferred operating mechanism is a heavy duty plate chain, preferably 0.5 inch to 1.5 inch, which runs smoothly through the guide wheel, while the ultimate load of the plate chain is less than the maximum tension of the spring. If a plate type chain with the length less than 0.5 inch is selected, the tension of the spring is greater than the load of the plate type chain, and the plate type chain is broken; if a plate chain larger than 1.5 inches is selected, when the chain passes through the guide wheel to control the direction, the contact surface between the chain and the surface of the guide wheel is too small due to the overlong pitch, so that the abrasion is aggravated on one hand, and the output speed characteristic of the operating mechanism is unstable due to slight jumping in the moving process on the other hand. Combining the above factors, the dimension specification of the plate chain is limited to 0.5 inch to 1.5 inches. Another type of chain that is often used is a roller chain, which can also be used in the transmission of the operating mechanism of the present invention. With the continuous emergence of new materials, high-strength flexible connecting bands with similar functions can be used in the operating mechanism.
In another embodiment as shown in fig. 3, the guide wheels 8 are designed at both ends B1 and B2 of the operating mechanism. In contrast to the embodiment of fig. 1, in fig. 1, 5 guide wheels 8 are arranged at the B1 end of the support 9, whereas in the embodiment of fig. 3, 3 guide wheels 8 controlling the closing spring chains 7, 7' are still located at the B1 end; and two guide wheels for controlling the opening spring chain 4 are positioned at the end B2, one operation output shaft connecting plate 2 still positioned at the middle part N of the operating mechanism pulls one opening spring chain 4, and the tension direction is controlled by the guide wheels at the end B2, so that the opening operation of the operating mechanism is realized.
In summary, with the new design scheme, the operating mechanism of the invention has the advantages of compact structure, balanced stress and simple design. Compared with the existing operating mechanism in the field, the structure is compact, and the cost is obviously reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A mechanical operating mechanism of a circuit breaker comprises a transmission part module M1 and a spring part module M2, and is characterized in that a closing spring (12) and an opening spring (11) are arranged in the spring part module M2, the closing spring (12) and the opening spring (11) are cylindrical spiral springs, a common-cylinder arrangement mode is adopted between the closing spring and the opening spring, the closing spring (12) with a larger diameter is sleeved outside the opening spring (11) with a smaller diameter, a spring isolating cylinder (10) is arranged between the closing spring (12) and the opening spring (11), the closing spring (12) is arranged on a closing spring support (14), and a closing spring guide ring (16) made of an antifriction material is arranged in the closing spring support (14); the switching-off spring (11) is arranged on a switching-off spring support (13), a switching-off spring guide ring (15) made of antifriction materials is arranged outside the switching-off spring support (13), the transmission part module M1 and the spring part module M2 are arranged in a parallel mode, the spring part module M2 is arranged on the side edge of the transmission part module M1, the side edges of the transmission part module M1 and the spring part module M2 are overlapped, a support (9) for mounting the switching-off spring (12) and the switching-off spring (11) is further arranged in the spring part module M2, the transmission part module M1 comprises an operation output shaft (3), an energy storage transmission shaft (6), wall plates (1 and 1') for supporting the operation output shaft (3) and the energy storage transmission shaft (6), and a connecting plate assembly and a chain assembly for connecting the operation output shaft (3), the energy storage transmission shaft (6), the switching-off spring (12) and the switching-off spring (11), and the connecting plate assembly and the chain assembly The device comprises a piece and a plurality of guide wheels (8) for controlling the direction of the transmission pulling force of a chain assembly, wherein the guide wheels respectively comprise a guide wheel for controlling closing spring chains (7, 7') and a guide wheel for controlling opening spring chains (4);
the chain assembly comprises an opening spring chain (4) and closing spring chains (7, 7'); the connecting plate assemblies are arranged on the outer sides of the wall plates (1 and 1 ') and connected with the closing spring support through closing spring chains, so that acting force is uniformly distributed on the bearings and the support of the wall plates (1 and 1').
2. The mechanical operating mechanism of circuit breaker as claimed in claim 1, characterized in that the operating output shaft link plate (2) on the operating output shaft (3) is connected to the opening spring support (13) and the opening spring (11) by a single opening spring chain (4) located in the middle of the mechanical operating mechanism of circuit breaker, and the energy storage transmission shaft link plate (5, 5 ') on the energy storage transmission shaft (6) is connected to the closing spring support (14) and the closing spring (12) by two closing spring chains (7, 7') located on either side of the mechanical operating mechanism of circuit breaker.
3. Mechanical operating mechanism for circuit breakers according to claim 1 or 2, characterized in that the wall plates (1, 1') of the transmission part module M1 are located on both sides of the transmission part module M1 and form the transmission part module M1 as a sandwich-type mechanism.
4. Mechanical operating mechanism for circuit breakers according to claim 1 or 2, characterized in that said plurality of guide wheels (8) is arranged inside said cradle (9) of said spring portion module M2;
the guide wheel (8) for controlling the closing spring chain (7, 7') and the guide wheel (8) for controlling the opening spring chain (4) are arranged at one end of the spring part module M2 and penetrate through the guide wheels (8) on one mounting shaft;
or the guide wheel (8) for controlling the closing spring chain (7, 7') and the guide wheel (8) for controlling the opening spring chain (4) are arranged at two ends of the spring part module M2 together.
5. Mechanical operating mechanism for circuit breakers according to claim 4, characterized in that the guide wheel (8) controlling the closing spring chain (7, 7') and the guide wheel (8) controlling the opening spring chain (4) are arranged at one end of the spring section module M2 and pass through the guide wheels (8) on one mounting shaft,
the connecting line of the connecting points of the closing spring support (14) and the closing spring chain (7, 7 ') is arranged obliquely relative to the mounting shaft of the guide wheel (8) controlling the closing spring chain (7, 7'), and the inclination angle is 45 degrees +/-15 degrees.
6. Mechanical operating mechanism for circuit breakers according to claim 1 or 2, characterized in that the pitch of the opening (4) and closing (7, 7') spring chains is chosen between 0.5 and 1.5 inches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063106.1A CN104021954B (en) | 2013-02-28 | 2013-02-28 | A kind of breaker mechanical formula operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063106.1A CN104021954B (en) | 2013-02-28 | 2013-02-28 | A kind of breaker mechanical formula operating mechanism |
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| CN104021954A CN104021954A (en) | 2014-09-03 |
| CN104021954B true CN104021954B (en) | 2016-08-03 |
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| CN201310063106.1A Active CN104021954B (en) | 2013-02-28 | 2013-02-28 | A kind of breaker mechanical formula operating mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351994A (en) * | 1980-04-01 | 1982-09-28 | S&C Electric Company | High-voltage switchgear |
| CN101261903A (en) * | 2008-04-18 | 2008-09-10 | 沈阳工大电子工程有限公司 | A large power spring operation mechanism |
| CN101834074A (en) * | 2010-06-12 | 2010-09-15 | 杨秀丽 | Spring operation mechanism for high-voltage breaker |
| CN201886918U (en) * | 2010-11-19 | 2011-06-29 | 西安英丰电气有限责任公司 | Spring operating mechanism for longitudinal arrangement of high-voltage circuit breakers |
| CN202126942U (en) * | 2011-06-28 | 2012-01-25 | 唐志宏 | High-power spring operating mechanism applicable to high-voltage breaker and ultrahigh-voltage breaker |
-
2013
- 2013-02-28 CN CN201310063106.1A patent/CN104021954B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351994A (en) * | 1980-04-01 | 1982-09-28 | S&C Electric Company | High-voltage switchgear |
| CN101261903A (en) * | 2008-04-18 | 2008-09-10 | 沈阳工大电子工程有限公司 | A large power spring operation mechanism |
| CN101834074A (en) * | 2010-06-12 | 2010-09-15 | 杨秀丽 | Spring operation mechanism for high-voltage breaker |
| CN201886918U (en) * | 2010-11-19 | 2011-06-29 | 西安英丰电气有限责任公司 | Spring operating mechanism for longitudinal arrangement of high-voltage circuit breakers |
| CN202126942U (en) * | 2011-06-28 | 2012-01-25 | 唐志宏 | High-power spring operating mechanism applicable to high-voltage breaker and ultrahigh-voltage breaker |
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| CN104021954A (en) | 2014-09-03 |
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