CN216562985U - Transmission mechanism of circuit breaker - Google Patents
Transmission mechanism of circuit breaker Download PDFInfo
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- CN216562985U CN216562985U CN202123440108.7U CN202123440108U CN216562985U CN 216562985 U CN216562985 U CN 216562985U CN 202123440108 U CN202123440108 U CN 202123440108U CN 216562985 U CN216562985 U CN 216562985U
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Abstract
The utility model provides a circuit breaker transmission mechanism, which comprises a support frame fixed on a body of a circuit breaker and a transmission assembly arranged on the support frame, wherein the transmission assembly comprises: the main shaft is rotatably arranged on the support frame; the main shaft is connected with the driving part through the first connecting rod crank arm component so that the driving part drives the main shaft to rotate; the main shaft is respectively connected with the input connecting levers of the circuit breaker in a one-to-one correspondence manner through the second connecting rod connecting lever assemblies so as to drive the input connecting levers to move, so that synchronous opening or synchronous closing actions of the circuit breaker are realized; each second connecting rod connecting lever component comprises a main shaft connecting lever and a transmission connecting lever which are connected, one end, far away from the transmission connecting lever, of each main shaft connecting lever is connected with a main shaft, and one end, far away from the main shaft connecting lever, of each transmission connecting lever is connected with the corresponding input connecting lever of the circuit breaker, so that the problem that the transmission efficiency of the transmission device of the 252kVGIS circuit breaker in the prior art is low is solved.
Description
Technical Field
The utility model relates to the technical field of high-voltage switches, in particular to a transmission mechanism of a circuit breaker.
Background
At present, a transmission device of a 252kV GIS circuit breaker is mostly operated in a split-phase mode, an electrical linkage structure is adopted for three phases, and a three-phase mechanical linkage structure is required for a protection transformer and a contact circuit breaker. The three-phase mechanical linkage puts high requirements on the operation power of the operating mechanism, has higher requirements on the transmission strength, and has higher design and manufacturing difficulties.
There is a 252kV GIS three-phase mechanical linkage circuit breaker transmission among the prior art, and its operating mechanism sets up in the top of mechanism room and support, and the transmission support is connected with the mesophase connecting lever through common connecting lever, realizes mechanical connection through alternate connecting rod between mesophase connecting lever and the limit looks connecting lever, and the shortcoming of this scheme is that explosion chamber connecting lever and with the transmission connecting lever be the four-bar linkage in space structure, transmission efficiency is lower.
The three-phase mechanical linkage transmission system of the 252kV combined electrical apparatus breaker also exists in the prior art, a hydraulic spring mechanism of the three-phase mechanical linkage transmission system is positioned at the lower side of a crank arm box, an edge phase is transmitted through a crank arm connecting rod, and then three-phase synchronous opening and closing are realized through an alternate connecting rod.
In addition, a three-phase mechanical linkage connecting mechanism of the circuit breaker exists in the prior art, and a casting structure is adopted in a main body part of the three-phase mechanical linkage connecting mechanism, so that the defect is that the structure is complex.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a circuit breaker transmission mechanism to solve the problem that a transmission device of a 252kV GIS circuit breaker in the prior art is low in transmission efficiency.
In order to achieve the above object, according to one aspect of the present invention, there is provided a circuit breaker transmission mechanism including a support frame fixed to a body of a circuit breaker and a transmission assembly provided on the support frame, the transmission assembly including: the main shaft is rotatably arranged on the support frame; the main shaft is connected with the driving part through the first connecting rod army component so as to enable the driving part to drive the main shaft to rotate; the main shaft is respectively connected with the input connecting levers of the circuit breaker in a one-to-one correspondence mode through the second connecting rod connecting lever assemblies so as to drive the input connecting levers to move, and therefore synchronous opening or synchronous closing actions of the circuit breaker are achieved; each second connecting rod connecting lever component comprises a main shaft connecting lever and a transmission connecting rod which are connected, one end, far away from the transmission connecting rod, of each main shaft connecting lever is connected with the main shaft, and one end, far away from the main shaft connecting lever, of each transmission connecting rod is connected with the corresponding input connecting lever of the circuit breaker.
Further, the first connecting rod crank arm assembly comprises a first crank arm, an intermediate connecting rod and a second crank arm, one end of the intermediate connecting rod is connected with the driving portion through the first crank arm, and the other end of the intermediate connecting rod is connected with the spindle through the second crank arm.
Further, the shaft sections of the spindle for mounting the spindle crank arm and the second crank arm are both prisms.
Further, the transmission link includes a first double-threaded screw and two first joints respectively threadedly connected to opposite ends of the first double-threaded screw to adjust a center distance between the spindle crank arm and the input crank arm by rotating the first double-threaded screw.
Further, the support frame includes: a connection frame installed on a body of the circuit breaker; the main shaft support is arranged on the connecting frame at intervals along the extending direction of the main shaft, each main shaft support is provided with a mounting hole for inserting the main shaft, and the main shaft is rotatably inserted into the mounting hole of each main shaft support.
Further, the connection frame includes: the two first rod bodies are arranged at intervals along a direction perpendicular to the extending direction of the main shaft; two second rod bodies arranged at intervals along the direction of the extension direction of the main shaft to connect the two first rod bodies to form a rectangular frame; the connecting frame comprises a reinforcing rib positioned in the rectangular frame, and the reinforcing rib is parallel to the first rod body or the second rod body.
Further, the spindle supporter includes: the frame connecting part is in a strip shape and is connected with the connecting frame through a fastener; the main shaft installation part protrudes towards one side far away from the connecting frame, and the installation hole is positioned on the main shaft installation part.
Further, the mounting hole is provided with: the main shaft bearing is clamped between the main shaft and the mounting hole, and the main shaft is rotatably arranged relative to the mounting hole through the main shaft bearing; and the two bearing end covers are respectively positioned at two opposite sides of the main shaft bearing, and each bearing end cover is provided with a through hole for the main shaft to pass through.
Further, the support frame further comprises a driving support which is arranged on the connecting frame and is positioned on one side, far away from the body of the circuit breaker, of the connecting frame so as to be used for installing the driving part.
Further, the driving bracket includes: an intermediate connection plate; the frame mounting plate is positioned on one side of the middle connecting plate, which is close to the connecting frame, and is parallel to the connecting frame, and the middle connecting plate is connected with the connecting frame through the frame mounting plate; the first driving part mounting plate is positioned on one side of the middle connecting plate close to the driving part and is parallel to the frame mounting plate, and the middle connecting plate is connected with the first position of the driving part through the first driving part mounting plate; the second driving part mounting plate is positioned on one side of the middle connecting plate close to the driving part and is parallel to the frame mounting plate, and the middle connecting plate is connected with the second position of the driving part through the second driving part mounting plate; the first driving part mounting plate and the second driving part mounting plate are arranged at intervals along a direction parallel to the frame mounting plate.
By applying the technical scheme of the utility model, the circuit breaker transmission mechanism comprises a support frame fixed on a body of the circuit breaker and a transmission assembly arranged on the support frame, wherein the transmission assembly comprises: the main shaft is rotatably arranged on the support frame; the main shaft is connected with the driving part through the first connecting rod army component so as to enable the driving part to drive the main shaft to rotate; the main shaft is respectively connected with the input connecting levers of the circuit breaker in a one-to-one correspondence mode through the second connecting rod connecting lever assemblies so as to drive the input connecting levers to move, and therefore synchronous opening or synchronous closing actions of the circuit breaker are achieved; each second connecting rod connecting lever component comprises a main shaft connecting lever and a transmission connecting rod which are connected, one end, far away from the transmission connecting rod, of each main shaft connecting lever is connected with the main shaft, and one end, far away from the main shaft connecting lever, of each transmission connecting rod is connected with the corresponding input connecting lever of the circuit breaker. Therefore, the synchronous movement of the three input connecting levers of the circuit breaker is realized through the transmission of the main shaft and the plurality of second connecting rod connecting lever assemblies, the structure is simple, the processing manufacturability is better, the transmission is more reliable, the transmission efficiency is higher, the synchronism is higher, the disassembly and the maintenance are convenient, and the problems that the transmission efficiency of the transmission device of the kV GIS circuit breaker in the prior art is lower, the processing process is more complex, and the disassembly and the assembly are more difficult are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments 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 shows a schematic structural view of an embodiment of a circuit breaker transmission according to the present invention when the drive portion is not included;
figure 2 shows a schematic view of the support frame of the circuit breaker transmission mechanism of figure 1 without the drive frame;
figure 3 shows a schematic view of the drive carriage of the support frame of the circuit breaker transmission of figure 1;
figure 4 shows a side view of the circuit breaker actuator mechanism shown in figure 1;
fig. 5 is a schematic view showing a structure of a circuit breaker mounted with the circuit breaker driving mechanism shown in fig. 1; and
fig. 6 shows a close-up view of the circuit breaker shown in fig. 5 at a.
Wherein the figures include the following reference numerals:
1. a support frame; 11. a connecting frame; 111. a first rod body; 112. a second rod body; 12. a spindle support; 120. mounting holes; 121. a frame connecting portion; 122. a main shaft mounting section; 13. a drive bracket; 131. an intermediate connection plate; 132. a frame mounting plate; 133. a first drive section mounting plate; 134. a second drive section mounting plate; 14. a drive bracket connection bracket;
2. a transmission assembly; 20. a main shaft; 21. a main shaft crank arm; 211. a first spindle crank arm; 212. a second spindle crank arm; 213. a third main shaft crank arm; 22. a transmission connecting rod; 2201. a first double-headed screw; 2202. a first joint; 221. a first drive link; 222. a second drive link; 223. a third drive link; 23. a first crank arm; 24. a middle connecting rod; 241. a second double-ended screw; 242. a second joint; 25. a second crank arm;
3. a drive section;
100. a circuit breaker; 101. an arc extinguishing chamber; 1011. a first arc-extinguishing chamber; 1012. a second arc extinguishing chamber; 1013. a third arc-extinguishing chamber; 102. an input shaft; 1021. a first input shaft; 1022. a second input shaft; 1023. a third input shaft; 103. inputting a crank arm; 1031. a first input crank arm; 1032. a second input crank arm; 1033. and a third input crank arm.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. 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 6, the present invention provides a circuit breaker transmission mechanism, including a support frame 1 fixed on a body of a circuit breaker 100 and a transmission assembly 2 disposed on the support frame 1, wherein the transmission assembly 2 includes: a main shaft 20, the main shaft 20 rotatably arranged on the support frame 1; the main shaft 20 is connected with the driving part 3 through the first connecting rod armset so that the driving part 3 drives the main shaft 20 to rotate; the main shaft 20 is respectively connected with the input connecting levers 103 of the circuit breaker 100 in a one-to-one correspondence manner through the second connecting rod connecting lever assemblies to drive the input connecting levers 103 to move, so that synchronous opening or synchronous closing of the circuit breaker 100 is realized; each second connecting rod crank arm assembly comprises a main shaft crank arm 21 and a transmission connecting rod 22 which are connected, one end, far away from the transmission connecting rod 22, of the main shaft crank arm 21 is connected with the main shaft 20, and one end, far away from the main shaft crank arm 21, of the transmission connecting rod 22 is connected with the corresponding input crank arm 103 of the circuit breaker 100.
The circuit breaker transmission mechanism of the utility model comprises a support frame 1 fixed on the body of the circuit breaker 100 and a transmission assembly 2 arranged on the support frame 1, wherein the transmission assembly 2 comprises: a main shaft 20, the main shaft 20 rotatably arranged on the support frame 1; the main shaft 20 is connected with the driving part 3 through the first connecting rod armset so that the driving part 3 drives the main shaft 20 to rotate; the main shaft 20 is respectively connected with the input connecting levers 103 of the circuit breaker 100 in a one-to-one correspondence manner through the second connecting rod connecting lever assemblies to drive the input connecting levers 103 to move, so that synchronous opening or synchronous closing of the circuit breaker 100 is realized; each second connecting rod crank arm assembly comprises a main shaft crank arm 21 and a transmission connecting rod 22 which are connected, one end, far away from the transmission connecting rod 22, of the main shaft crank arm 21 is connected with the main shaft 20, and one end, far away from the main shaft crank arm 21, of the transmission connecting rod 22 is connected with the corresponding input crank arm 103 of the circuit breaker 100. Thus, the synchronous movement of the three input crank arms 103 of the circuit breaker 100 is realized through the transmission of the main shaft 20 and the second connecting rod crank arm assemblies, the structure is simple, the processing manufacturability is better, the transmission is more reliable, the transmission efficiency is higher, the synchronism is higher, the disassembly and the maintenance are convenient, and the problems that the transmission efficiency of a transmission device of a 252kV GIS circuit breaker in the prior art is lower, the processing process is more complex, and the disassembly and the assembly are more difficult are solved.
As shown in fig. 1 and 4, the first link lever assembly includes a first lever 23, an intermediate link 24 and a second lever 25, one end of the intermediate link 24 is connected to the driving part 3 through the first lever 23, and the other end of the intermediate link 24 is connected to the spindle 20 through the second lever 25, so that the driving part 3 drives the spindle 20 to rotate through the first link lever assembly.
As shown in fig. 1, the sections of the spindle 20 for mounting the spindle crank arm 21 and the second crank arm 25 are prism-shaped, so as to ensure the reliability and stability of the connection between the spindle 20 and the spindle crank arm 21 and the second crank arm 25.
Preferably, the sections of the spindle 20 for mounting the spindle crank arm 21 and the second crank arm 25 are each hexagonal prisms.
Specifically, a hexagonal hole matched with the hexagonal prism is formed in one end, connected with the spindle 20, of the spindle connecting lever 21, an open slot is formed in one end, far away from the spindle 20, of the spindle connecting lever 21, so that one end of the corresponding transmission connecting rod 22 can be inserted, pin holes for a connecting pin to pass through are formed in one end, far away from the spindle 20, of the spindle connecting lever 21 and one end, connected with the spindle connecting lever 21, of the transmission connecting rod 22, so that the corresponding spindle connecting lever 21 and the transmission connecting rod 22 are connected through the connecting pin; the end of the second crank arm 25 connected with the main shaft 20 is provided with a hexagonal hole matched with the hexagonal prism, the end of the second crank arm 25 far away from the main shaft 20 is provided with an open slot for inserting one end of the middle connecting rod 24, and the end of the second crank arm 25 far away from the main shaft 20 and the end of the middle connecting rod 24 connected with the second crank arm 25 are provided with pin holes for connecting pins to pass through so as to connect the second crank arm 25 with the middle connecting rod 24 through the connecting pins.
Wherein, both ends of the transmission connecting rod 22 and both ends of the middle connecting rod 24 are hinged with the corresponding crank arms.
As shown in fig. 4, the transmission link 22 includes a first stud 2201 and two first joints 2202 that are respectively screw-connected to opposite ends of the first stud 2201 to adjust a center distance between the spindle crank arm 21 and the input crank arm 103 (i.e., a distance between a rotation axis at a connection of the spindle crank arm 21 and one end of the transmission link 22 and a rotation axis at a connection of the input crank arm 103 and the other end of the transmission link 22) by rotating the first stud 2201.
Preferably, first locking nuts are threadedly connected to both opposite ends of the first stud 2201, so that both opposite ends of the first stud 2201 and both the two first joints 2202 are respectively locked by rotating the two first locking nuts.
As shown in fig. 4, the intermediate link 24 includes a second stud screw 241 and two second joints 242 respectively threadedly coupled to opposite ends of the second stud screw 241, as shown in fig. 4, to adjust a center-to-center distance between the first and second links 23 and 25 (i.e., a distance between a rotational axis at a connection of the first link 23 and one end of the intermediate link 24 and a rotational axis at a connection of the second link 25 and the other end of the intermediate link 24) by rotating the second stud screw 241.
Preferably, second locking nuts are threadedly coupled to opposite ends of the second double-headed screw 241 to lock between the opposite ends of the second double-headed screw 241 and the two second joints 242 by rotating the two second locking nuts.
As shown in fig. 2, the support frame 1 includes: a connection frame 11 mounted on the body of the circuit breaker 100; at least two main shaft supports 12 are arranged on the connecting frame 11 at intervals along the extending direction of the main shaft 20, each main shaft support 12 is provided with a mounting hole 120 for inserting the main shaft 20, and the main shaft 20 is rotatably inserted into the mounting hole 120 of each main shaft support 12.
Wherein, the connection frame 11 includes: two first rods 111, each of which is parallel to the extending direction of the main shaft 20 and is arranged at intervals in a direction perpendicular to the extending direction of the main shaft 20; two second rods 112, which are perpendicular to the extending direction of the main shaft 20 and are arranged at intervals along the extending direction of the main shaft 20 to connect two ends of the two first rods 111 respectively to form a rectangular frame; the connection frame 11 includes a reinforcing rib in a rectangular frame, and the reinforcing rib is parallel to the first rod 111 or parallel to the second rod 112.
Optionally, the reinforcing rib is one or more.
Preferably, the first rod 111, the second rod 112 and the reinforcing ribs are all square pipes, and the connecting frame 11 is formed by welding a plurality of square pipes, so as to reduce the weight of the connecting frame 11 as much as possible while ensuring the strength of the connecting frame 11.
As shown in fig. 2, the spindle carrier 12 includes: a frame connection part 121, wherein the frame connection part 121 is a bar-shaped structure perpendicular to the extending direction of the main shaft 20, and the frame connection part 121 is connected with the connection frame 11 through a plurality of fasteners; a main shaft mounting part 122, the main shaft mounting part 122 protruding toward a side away from the connecting frame 11 (e.g., above the connecting frame 11), and the mounting hole 120 being located on the main shaft mounting part 122.
Wherein, mounting hole 120 department is provided with: a main shaft bearing interposed between the main shaft 20 and the mounting hole 120, through which the main shaft 20 is rotatably provided with respect to the mounting hole 120; and the two bearing end covers are respectively positioned at two opposite sides of the main shaft bearing so as to protect the main shaft bearing. Each bearing end cap is provided with a through hole for the main shaft 20 to pass through.
Specifically, two bearing end covers are respectively fixed on two side end faces of the main shaft mounting portion 122 through a plurality of fasteners, a plurality of through holes are respectively arranged on the two bearing end covers at intervals around the through holes for the plurality of fasteners to penetrate in a one-to-one correspondence manner, a plurality of fastening holes are respectively arranged on two side end faces of the main shaft mounting portion 122 at intervals around the mounting holes 120 for the plurality of fasteners to penetrate in a one-to-one correspondence manner, and each fastener penetrates through the corresponding through hole and then is inserted into the corresponding fastening hole.
Preferably, the fastening member is a screw, and the fastening hole is a threaded hole for screwing the screw.
As shown in fig. 2, the supporting frame 1 further includes a driving bracket 13 mounted on the connecting frame 11 and located at a side of the connecting frame 11 away from the body of the circuit breaker 100, for mounting the driving part 3.
As shown in fig. 3, the driving bracket 13 includes: an intermediate connection plate 131; a frame mounting plate 132 positioned at a side of the intermediate connection plate 131 close to the connection frame 11 and parallel to the connection frame 11, the intermediate connection plate 131 being connected to the connection frame 11 through the frame mounting plate 132; a first driving part mounting plate 133 positioned at a side of the intermediate connection plate 131 close to the driving part 3 and parallel to the frame mounting plate 132, the intermediate connection plate 131 being connected to the driving part 3 at a first position by the first driving part mounting plate 133; a second driving part mounting plate 134 positioned at a side of the intermediate connection plate 131 close to the driving part 3 and parallel to the frame mounting plate 132, the intermediate connection plate 131 being connected to a second position of the driving part 3 through the second driving part mounting plate 134; wherein the first driving part mounting plate 133 and the second driving part mounting plate 134 are arranged at an interval in a direction parallel to the frame mounting plate 132.
Specifically, the first driving part mounting plate 133 is located below the second driving part mounting plate 134.
As shown in fig. 2, the support frame 1 further includes a driving bracket connection bracket 14 disposed on the connection frame 11, at least a portion of the driving bracket connection bracket 14 is a bar structure parallel to the frame connection portion 121 of the spindle bracket 12, and the frame mounting plate 132 of the driving bracket 13 is connected to the driving bracket connection bracket 14 by one set of fasteners and is connected to one spindle bracket 12 adjacent to the driving bracket connection bracket 14 by another set of fasteners.
Optionally, the number of the intermediate connection plates 131 is one; or the number of the intermediate connection plates 131 is plural, and the plural intermediate connection plates 131 are arranged at intervals in a direction parallel to the frame mounting plate 132.
Preferably, the middle connection plate 131 is connected to the frame mounting plate 132, the first driving part mounting plate 133 and the second driving part mounting plate 134 by welding.
As shown in fig. 5 and 6, the circuit breaker 100 includes three arc-extinguishing chambers 101, an input connecting lever 103 is disposed on an input shaft 102 of each arc-extinguishing chamber 101, and three input connecting levers 103 of the three arc-extinguishing chambers 101 are respectively connected to the transmission links 22 of the three second link connecting lever assemblies of the circuit breaker transmission mechanism.
Specifically, the three arc extinguishing chambers 101 are respectively a first arc extinguishing chamber 1011, a second arc extinguishing chamber 1012 and a third arc extinguishing chamber 1013, wherein a first input crank arm 1031 is arranged on a first input shaft 1021 of the first arc extinguishing chamber 1011, and a first main shaft crank arm 211 of a first second connecting rod crank arm assembly is connected with the first input crank arm 1031 through a first transmission connecting rod 221; a second input crank arm 1032 is arranged on a second input shaft 1022 of the second arc extinguish chamber 1012, and the second spindle crank arm 212 of the second connecting rod crank arm assembly is connected with the second input crank arm 1032 through the second transmission connecting rod 222; a third input crank 1033 is disposed on the third input shaft 1023 of the third arc-extinguishing chamber 1013, and the third spindle crank 213 of the third second connecting rod crank assembly is connected to the third input crank 1033 through the third transmission connecting rod 223.
Taking fig. 4 as an example, the transmission process of the transmission mechanism of the circuit breaker of the utility model is as follows:
when the driving part 3 drives the first crank arm 23 to rotate clockwise, the spindle 20 is driven to rotate clockwise through the intermediate connecting rod 24 and the second crank arm 25, the spindle 20 drives the three spindle crank arms 21 to rotate clockwise, the three spindle crank arms 21 respectively drive the three transmission connecting rods 22 to move upwards, and the three transmission connecting rods 22 respectively drive the three input crank arms 103 of the circuit breaker 100 to rotate anticlockwise, so that synchronous switching-on action in the three arc extinguish chambers 101 of the circuit breaker 100 is realized; when the driving part 3 drives the first crank arm 23 to rotate anticlockwise, the intermediate connecting rod 24 and the second crank arm 25 drive the spindle 20 to rotate anticlockwise, the spindle 20 drives the three spindle crank arms 21 to rotate anticlockwise, the three spindle crank arms 21 respectively drive the three transmission connecting rods 22 to move downwards, and the three transmission connecting rods 22 respectively drive the three input crank arms 103 of the circuit breaker 100 to rotate clockwise, so that synchronous opening operation in the three arc extinguish chambers 101 of the circuit breaker 100 is realized.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the circuit breaker transmission mechanism of the utility model comprises a support frame 1 fixed on the body of the circuit breaker 100 and a transmission assembly 2 arranged on the support frame 1, wherein the transmission assembly 2 comprises: a main shaft 20, the main shaft 20 rotatably arranged on the support frame 1; the main shaft 20 is connected with the driving part 3 through the first connecting rod armset so that the driving part 3 drives the main shaft 20 to rotate; the main shaft 20 is respectively connected with the input connecting levers 103 of the circuit breaker 100 in a one-to-one correspondence manner through the second connecting rod connecting lever assemblies to drive the input connecting levers 103 to move, so that synchronous opening or synchronous closing of the circuit breaker 100 is realized; each second connecting rod crank arm assembly comprises a main shaft crank arm 21 and a transmission connecting rod 22 which are connected, one end, far away from the transmission connecting rod 22, of the main shaft crank arm 21 is connected with the main shaft 20, and one end, far away from the main shaft crank arm 21, of the transmission connecting rod 22 is connected with the corresponding input crank arm 103 of the circuit breaker 100. Thus, the synchronous movement of the three input crank arms 103 of the circuit breaker 100 is realized through the transmission of the main shaft 20 and the second connecting rod crank arm assemblies, the structure is simple, the processing manufacturability is better, the transmission is more reliable, the transmission efficiency is higher, the synchronism is higher, the disassembly and the maintenance are convenient, and the problems that the transmission efficiency of a transmission device of a 252kV GIS circuit breaker in the prior art is lower, the processing process is more complex, and the disassembly and the assembly are more difficult are solved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, so that the scope of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (10)
1. The utility model provides a circuit breaker drive mechanism, its characterized in that is in including support frame (1) and the setting that is fixed in on the body of circuit breaker (100) transmission assembly (2) on support frame (1), transmission assembly (2) include:
a main shaft (20), the main shaft (20) is rotatably arranged on the support frame (1);
the main shaft (20) is connected with the driving part (3) through the first connecting rod armset so that the driving part (3) drives the main shaft (20) to rotate;
the main shaft (20) is respectively connected with the input connecting levers (103) of the circuit breaker (100) in a one-to-one correspondence manner through the second connecting rod connecting lever assemblies so as to drive the input connecting levers (103) to move, so that synchronous opening or synchronous closing of the circuit breaker (100) is realized;
each second connecting rod connecting lever subassembly all includes main shaft connecting lever (21) and transmission connecting rod (22) that are connected, main shaft connecting lever (21) are kept away from the one end of transmission connecting rod (22) with main shaft (20) are connected, transmission connecting rod (22) are kept away from the one end of main shaft connecting lever (21) and corresponding of circuit breaker (100) input connecting lever (103) are connected.
2. The circuit breaker drive mechanism of claim 1 wherein the first link lever assembly comprises a first lever (23), an intermediate link (24) and a second lever (25), one end of the intermediate link (24) being connected to the drive section (3) through the first lever (23), the other end of the intermediate link (24) being connected to the spindle (20) through the second lever (25).
3. The circuit breaker drive mechanism of claim 2 wherein the sections of the spindle (20) on which the spindle crank arms (21) and the second crank arms (25) are mounted are each prismatic.
4. The circuit breaker drive mechanism of claim 1 wherein the drive link (22) comprises a first double-threaded screw (2201) and two first joints (2202) respectively threadedly connected to opposite ends of the first double-threaded screw (2201) to adjust a center-to-center distance between the spindle crank arm (21) and the input crank arm (103) by rotating the first double-threaded screw (2201).
5. Circuit breaker transmission according to claim 1, characterized in that the support frame (1) comprises:
a connection frame (11) mounted on a body of the circuit breaker (100);
the connecting frame comprises at least two main shaft supports (12), wherein the main shaft supports (12) are arranged on the connecting frame (11) at intervals along the extending direction of the main shaft (20), each main shaft support (12) is provided with a mounting hole (120) for the main shaft (20) to be inserted into, and the main shaft (20) is rotatably inserted into the mounting hole (120) of each main shaft support (12).
6. The circuit breaker actuator mechanism of claim 5 wherein the connection frame (11) comprises:
two first rods (111) arranged at intervals in a direction perpendicular to the direction of extension of the main shaft (20);
two second rods (112) arranged at intervals in the direction of the extension direction of the main shaft (20) to connect the two first rods (111) to form a rectangular frame;
wherein the connecting frame (11) comprises a reinforcing rib positioned in the rectangular frame, and the reinforcing rib is parallel to the first rod body (111) or the second rod body (112).
7. The circuit breaker drive mechanism of claim 5 wherein the spindle carrier (12) comprises:
the frame connecting part (121), the frame connecting part (121) is strip-shaped, and the frame connecting part (121) is connected with the connecting frame (11) through a fastener;
the main shaft installation part (122), keep away from main shaft installation part (122) orientation one side protrusion of connecting frame (11), mounting hole (120) are located on main shaft installation part (122).
8. The circuit breaker actuator mechanism of claim 5 wherein the mounting hole (120) is provided with:
a main shaft bearing interposed between the main shaft (20) and the mounting hole (120), the main shaft (20) being rotatably provided with respect to the mounting hole (120) via the main shaft bearing;
the two bearing end covers are respectively positioned on two opposite sides of the main shaft bearing, and each bearing end cover is provided with a through hole for the main shaft (20) to pass through.
9. The circuit breaker drive mechanism of claim 5 wherein the support frame (1) further comprises a drive bracket (13) mounted on the connecting frame (11) on a side of the connecting frame (11) remote from the body of the circuit breaker (100) for mounting the drive portion (3).
10. The circuit breaker drive mechanism according to claim 9, wherein the drive carriage (13) comprises:
an intermediate connection plate (131);
a frame mounting plate (132) positioned on one side of the intermediate connecting plate (131) close to the connecting frame (11) and parallel to the connecting frame (11), the intermediate connecting plate (131) being connected with the connecting frame (11) through the frame mounting plate (132);
a first driving part mounting plate (133) positioned at a side of the intermediate connection plate (131) close to the driving part (3) and parallel to the frame mounting plate (132), the intermediate connection plate (131) being connected to the driving part (3) at a first position by the first driving part mounting plate (133);
a second driving part mounting plate (134) positioned at a side of the intermediate connection plate (131) close to the driving part (3) and parallel to the frame mounting plate (132), the intermediate connection plate (131) being connected to a second position of the driving part (3) through the second driving part mounting plate (134);
wherein the first drive portion mounting plate (133) and the second drive portion mounting plate (134) are arranged at a spacing in a direction parallel to the frame mounting plate (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123440108.7U CN216562985U (en) | 2021-12-31 | 2021-12-31 | Transmission mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123440108.7U CN216562985U (en) | 2021-12-31 | 2021-12-31 | Transmission mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216562985U true CN216562985U (en) | 2022-05-17 |
Family
ID=81560045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123440108.7U Active CN216562985U (en) | 2021-12-31 | 2021-12-31 | Transmission mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216562985U (en) |
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2021
- 2021-12-31 CN CN202123440108.7U patent/CN216562985U/en active Active
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