CN117810020A - Outdoor high-voltage alternating current vacuum circuit breaker - Google Patents
Outdoor high-voltage alternating current vacuum circuit breaker Download PDFInfo
- Publication number
- CN117810020A CN117810020A CN202311873750.5A CN202311873750A CN117810020A CN 117810020 A CN117810020 A CN 117810020A CN 202311873750 A CN202311873750 A CN 202311873750A CN 117810020 A CN117810020 A CN 117810020A
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- China
- Prior art keywords
- operating mechanism
- rotating shaft
- circuit breaker
- vacuum circuit
- outdoor high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 127
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 230000009471 action Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical class 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an outdoor high-voltage alternating current vacuum circuit breaker, and belongs to the technical field of high-voltage circuit breakers. The device comprises a mechanism box, three polar posts, an isolating switch, a vacuum arc-extinguishing chamber, a first operating mechanism and a second operating mechanism, wherein all the vacuum arc-extinguishing chambers are controlled to be switched on and off through the first operating mechanism; all the isolating switches are controlled to be switched on and off through a second operating mechanism; an operating handle connected with a second operating mechanism is arranged outside the mechanism box; the second operating mechanism comprises a rotating shaft, a transmission frame, a linkage assembly and a connecting piece, wherein both ends of the rotating shaft extend out of the mechanism box and are respectively fixed with an operating handle at both ends of the rotating shaft, the transmission frame is driven to move up and down through the linkage assembly when the rotating shaft rotates, and then the moving contact is driven to move up and down through the connecting piece. The invention has reasonable structural design and convenient operation control, and the vacuum arc-extinguishing chamber and the isolating switch can be switched on and off according to a preset sequence, so that misoperation is avoided, and the invention has good practicability and popularization.
Description
Technical Field
The invention belongs to the field of structural design of vacuum circuit breakers, and particularly relates to an outdoor high-voltage alternating current vacuum circuit breaker.
Background
At present, the outdoor high-voltage vacuum circuit breaker widely used is provided with an external isolating switch, namely the isolating switch is exposed. And the exposed isolating switch is easy to have the problems of material corrosion, poor contact and the like, and potential safety hazards are caused to power operation. In the prior art, some outdoor high-voltage alternating current vacuum circuit breakers are provided with isolating switches which are arranged in the pole, so that the problem that the isolating switches are arranged externally is solved. The existing outdoor high-voltage alternating current vacuum circuit breaker has the following problems: an operating handle is arranged outside one end of the mechanism box, and the isolating switch can be controlled to be switched on or off only through the operating handle, and the outdoor high-voltage alternating-current vacuum circuit breaker is arranged at a high position, so that inconvenience is brought to high-altitude operation to a certain extent; in addition, the isolating switch and the vacuum arc-extinguishing chamber in the existing outdoor alternating-current high-voltage vacuum circuit breaker are required to be operated to be switched on and off according to a certain sequence, so that the interlocking mechanism is configured, however, the existing interlocking mechanism has more parts, is complex in structure and causes higher failure rate.
Disclosure of Invention
In this regard, the invention provides an outdoor high-voltage alternating current vacuum circuit breaker which is convenient to control and operate.
The technical scheme for realizing the aim of the invention is as follows:
the invention provides an outdoor high-voltage alternating current vacuum circuit breaker which comprises a mechanism box, three polar posts fixed at the upper part of the mechanism box, isolating switches arranged in the polar posts, vacuum arc-extinguishing chambers arranged in the polar posts, a first operating mechanism arranged in the mechanism box and a second operating mechanism arranged in the mechanism box, wherein all the vacuum arc-extinguishing chambers are controlled to be switched on and off through the first operating mechanism; all the isolating switches are controlled to be switched on and off through a second operating mechanism; an operating handle connected with a second operating mechanism is arranged outside the mechanism box; the second operating mechanism comprises a rotating shaft which is arranged along the length direction of the mechanism box and can rotate around the axis of the second operating mechanism, a transmission frame which is arranged along the length direction of the mechanism box and is limited to be capable of moving in the up-and-down direction, a linkage assembly which is used for linkage connection of the transmission frame and the rotating shaft, and a connecting piece which is used for connecting a moving contact of the isolating switch and the transmission frame at the upper end and the lower end respectively, wherein both ends of the rotating shaft extend out of the mechanism box and are respectively fixed with an operating handle at both ends of the rotating shaft, and the transmission frame is driven to move up and down through the linkage assembly when the rotating shaft rotates, so that the moving contact is driven to move up and down through the connecting piece.
In the preferred technical scheme, the mechanism case is internally fixed with the isolation support below each polar column, be equipped with the spacing slide hole that sets up along upper and lower direction on the isolation support, fixed upward protruding connecting plate of establishing on the drive frame, be equipped with horizontal spacing axle on the connecting plate, spacing slide hole is worn to locate by spacing axle, and spacing axle and the cooperation restriction of spacing slide hole the drive frame can only reciprocate, simultaneously spacing axle with the connecting piece lower extreme links to each other.
In the preferred technical scheme, the sleeve capable of rotating around the axis of the sleeve is sleeved outside the limiting shaft and is positioned in the limiting sliding hole.
In the preferred technical scheme, keep apart support upper end and the fixed continuous of mechanism incasement top, keep apart the cross section of support and be the U-shaped, including the both sides wallboard that set up relatively and the connecting wall of connecting both sides wallboard, the symmetry sets up on the both sides wallboard spacing slide hole, corresponding spacing slide hole is inserted respectively at spacing axle both ends, the connecting plate stretches into between the both sides wallboard and is connected with spacing axle.
In the preferred technical scheme, the connecting piece lower extreme spiro union has the adjusting screw who sets up along upper and lower direction, the adjusting screw lower extreme sets up the trepanning, the trepanning with spacing axle cup joints.
In the preferred technical scheme, the linkage assembly includes fixing drive crank on the axis of rotation and fixing the guide holder on the drive frame, be equipped with the bar hole that sets up along its length direction on the drive crank, be fixed with the locating pin on the guide holder, the locating pin passes the bar hole.
In the preferred technical scheme, the mechanism box is internally fixed with a locating rack, a copper sleeve is movably sleeved outside the rotating shaft, and the copper sleeve is fixed on the locating rack.
In the preferred technical scheme, the upper end of the isolation bracket is provided with an upward protruding positioning block, a reinforcing plate which is attached to the inner side of the top wall of the mechanism box is fixed on the inner side of the top wall of the mechanism box, and a positioning hole which is in plug-in fit with the positioning block is formed in the reinforcing plate; and the upper end of the isolation bracket is welded and fixed with the reinforcing plate.
In the preferred technical scheme, an interlocking mechanism is arranged between a first operating mechanism and a second operating mechanism in the mechanism box, the interlocking mechanism comprises a limiting block capable of moving along the axial direction of the rotating shaft and a limiting crank arm fixed on the rotating shaft and capable of rotating along with the rotating shaft, a locking groove is formed in the limiting block, the limiting block is linked with the first operating mechanism and drives the limiting block to move between a first position and a second position when the first operating mechanism performs opening and closing actions, the limiting block is positioned at the first position when the first operating mechanism is in a closing state and the limiting groove is staggered with the limiting crank arm, and the limiting block is positioned at the second position when the first operating mechanism is in a separating state and the locking groove is opposite to the limiting crank arm; when the outdoor high-voltage alternating-current vacuum circuit breaker is in a closing state, the limiting block is in a first position, the movement of the limiting block is not limited by the limiting crank arm, and the limiting block can resist the limiting crank arm to limit the rotation of the rotating shaft, so that the second operating mechanism is kept in the closing state and cannot be opened; when the outdoor high-voltage alternating current vacuum circuit breaker is in a brake-separating state, the limiting block is in a second position, and the limiting crank arm stretches into the locking groove and limits the limiting block to move, so that the first operating mechanism is kept in the brake-separating state and cannot be switched on.
The invention has the positive effects that: the outdoor high-voltage vacuum circuit breaker is reasonable in structural design, so that when the disconnecting switch is controlled to be opened and closed, the operating handle is rotated in the opposite direction to drive the rotating shaft to rotate so as to control the movable contact to move up and down, the disconnecting switch is closed when the movable contact is contacted with the fixed contact, and the disconnecting switch is opened when the movable contact is separated from the fixed contact; and because the operating handles are arranged at the two ends of the rotating shaft, when the isolating switch is controlled to be switched on or off, a worker can select a proper operating handle to operate the isolating switch according to the situation, so that the operation of the worker is convenient to a certain extent, the operation convenience is effectively improved, and the isolating switch has good practicability and popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a front view of an outdoor high-voltage ac vacuum circuit breaker according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a right side view of the outdoor high voltage ac vacuum circuit breaker of fig. 1;
FIG. 4 is a schematic structural view of a second operating mechanism according to the present invention;
FIG. 5 is a schematic view of the second actuator shown in FIG. 4 from another perspective;
FIG. 6 is a top view of the second operating mechanism shown in FIG. 4;
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
FIG. 9 is a schematic view of the structure of a spacer bracket of the present invention;
fig. 10 is a schematic structural view of an interlocking mechanism of the outdoor high-voltage ac vacuum circuit breaker in the opening state according to the present invention;
fig. 11 is a schematic structural view of an interlocking mechanism of the outdoor high-voltage ac vacuum circuit breaker in the present invention in a closing state.
The reference numerals shown in the figures are: 1-a mechanism box; 10-reinforcing plates; 11-isolating a stent; 12-limiting slide holes; 13-side wall panels; 14-connecting walls; 15-positioning blocks; 2-pole; 3-isolating switch; 31-a moving contact; 32-a fixed contact; 4-a vacuum arc extinguishing chamber; 5-a first operating mechanism; 51-limiting blocks; 52-locking grooves; 6-a second operating mechanism; 61-rotating shaft; 62-a transmission frame; 621-connecting plates; 622-limiting shaft; 623-a sleeve; 63-linkage assembly; 631-driving the crank arm; 632-guide seat; 633-bar-shaped holes; 634-locating pins; 64-connectors; 65-adjusting the screw; 66-copper sleeve; 67-limiting crank arms; 68-sleeve; 7-operating a handle; 8-locating rack.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The outdoor high-voltage alternating current vacuum circuit breaker structure in the embodiment is shown in fig. 1 to 9, and comprises a mechanism box 1, three poles 2 fixed at the upper part of the mechanism box 1, isolating switches 3 arranged in the poles 2, vacuum arc-extinguishing chambers 4 arranged in the poles 2, a first operating mechanism 5 arranged in the mechanism box 1 and a second operating mechanism 6 arranged in the mechanism box 1, wherein all the vacuum arc-extinguishing chambers 4 are controlled to be switched on and switched off through the first operating mechanism 5; all the isolating switches 3 are controlled to be switched on and off by a second operating mechanism 6; an operation handle 7 connected with a second operation mechanism 6 is arranged outside the mechanism box 1; when the outdoor high-voltage alternating-current vacuum circuit breaker is connected into a line for use, when the outdoor high-voltage alternating-current vacuum circuit breaker is in an off state for cutting off the line, the disconnecting switch 3 and the vacuum arc-extinguishing chamber 4 are both off (namely, open), and when the outdoor high-voltage alternating-current vacuum circuit breaker is in an on state for conducting the line, the disconnecting switch 3 and the vacuum arc-extinguishing chamber 4 are both on (namely, close).
Specifically, the second operating mechanism 6 includes a rotating shaft 61 that is disposed along the length direction of the mechanism box 1 and can rotate around the axis thereof, a driving frame 62 that is disposed along the length direction of the mechanism box 1 and is limited to move only in the up-down direction, a linkage assembly 63 that links the driving frame 62 with the rotating shaft 61, and a connecting piece 64 that connects the moving contact 31 of the disconnecting switch 3 and the driving frame 62 at the up-down ends respectively, both ends of the rotating shaft 61 extend out of the mechanism box 1 and are fixed with operating handles 7 at both ends of the rotating shaft 61, when the rotating shaft 61 rotates, the driving frame 62 is driven to move up and down by the linkage assembly 63, and then the moving contact 31 is driven to move up and down by the connecting piece 64; thus, when the disconnecting switch is controlled to be opened and closed, the operating handle 7 is rotated in the opposite direction, the rotating shaft 61 is driven to rotate so as to control the brake contact 31 to move up and down, the disconnecting switch is closed when the moving contact 31 is contacted with the fixed contact 32, and the disconnecting switch is opened when the moving contact 31 is separated from the fixed contact 32; and because the operating handle 7 has all been set up at axis of rotation 61 both ends, when control isolator divide-shut brake, the staff can select suitable operating handle 7 to operate isolator according to the condition to make things convenient for the staff to operate to a certain extent, effectively improved the operating convenience, have fine practicality and popularization nature.
As shown in fig. 4 and fig. 5, an isolation bracket 11 is fixed below each pole 2 in the mechanism box 1, a limiting sliding hole 12 arranged along the up-down direction is arranged on the isolation bracket 11, a connecting plate 621 protruding upwards is fixed on the transmission frame 62, a transverse limiting shaft 622 is arranged on the connecting plate 621, the limiting shaft 622 penetrates through the limiting sliding hole 12, the transmission frame 62 can only move in the up-down direction due to the cooperation of the limiting shaft 622 and the limiting sliding hole 12, namely, the limiting shaft 622 and the limiting sliding hole 12 cooperate to provide guiding limiting for the up-down movement of the transmission frame 62, and the limiting shaft 622 is connected with the lower end of the connecting piece 64, so that the connection between the moving contact 31 and the transmission frame 62 is realized.
The sleeve 623 which can rotate around the axis of the sleeve 623 is sleeved outside the limiting shaft 622, and the sleeve 623 is positioned in the limiting slide hole 12, so that the rolling friction generated between the periphery of the sleeve 623 and the wall of the limiting slide hole 12 when the limiting shaft 622 moves through the limiting shaft 622 can reduce the resistance and improve the flexibility of the action because the sleeve 623 can rotate on the limiting shaft 622.
Illustratively, the upper end of the isolating support 11 is fixedly connected with the inner top of the mechanism box 1, the cross section of the isolating support 11 is in a U shape, and the isolating support comprises two opposite side wall plates 13 and a connecting wall 14 for connecting the two side wall plates 13, the two side wall plates 13 are symmetrically provided with the limiting sliding holes 12, two ends of the limiting shaft 622 are respectively inserted into the corresponding limiting sliding holes 12, so that the limiting sliding holes 12 can be matched with the limiting shaft 622 more stably and effectively, and the connecting plate 621 extends into the space between the two side wall plates 13 and is connected with the limiting shaft 622.
Referring to fig. 7 and 8, the lower end of the connecting piece 64 is screwed with an adjusting screw 65 disposed along the up-down direction, the lower end of the adjusting screw 65 is provided with a sleeve hole, the sleeve hole is sleeved with the limiting shaft 622, the adjusting screw 65 is screwed at the lower end of the connecting piece 64 during assembly, and the relative height between the adjusting screw 65 and the connecting piece 64 can be adjusted by rotating the adjusting screw 65.
As shown in fig. 4 to 6, the linkage assembly 63 includes a driving crank arm 631 fixed on the rotation shaft 61 and a guide seat 632 fixed on the transmission frame 62, the driving crank arm 631 is provided with a bar hole 633 arranged along the length direction thereof, the guide seat 632 is fixed with a positioning pin 634, and the positioning pin 634 passes through the bar hole 633; the long side of the bar hole 633 generates a force to the positioning pin 634 when the rotation shaft 61 rotates, thereby driving the driving frame 62 to move upward or downward, and simultaneously the positioning pin 634 moves relatively in the bar hole 633.
As shown in fig. 5, the positioning frame 8 is fixed in the mechanism box 1, the copper sleeve 66 is movably sleeved outside the rotating shaft 61, the copper sleeve 66 is fixed on the positioning frame 8, the positioning frame 8 can be fixed in the mechanism box 1 through bolts or welding, and lubricating oil can be arranged in a gap between the copper sleeve 66 and the rotating shaft 61, so that friction force between the rotating shaft 61 and the copper sleeve 66 during relative rotation is reduced.
As shown in fig. 9, the upper end of the isolation bracket 11 is provided with a positioning block 15 protruding upwards, a reinforcing plate 10 attached to the upper wall of the mechanism box 1 is fixed on the inner side of the upper wall of the mechanism box 1, the reinforcing plate 10 is provided with a positioning hole matched with the positioning block 15 in a plugging manner, the positioning block 15 is plugged with the positioning hole when the isolation bracket 11 is installed, so that the isolation bracket 11 is positioned, and then the upper end of the isolation bracket 11 is welded and fixed with the reinforcing plate 10, so that the installation position precision and the installation reliability of the isolation bracket 11 are ensured; due to the arrangement of the reinforcing plate 10, the strength of the mechanism box 1 can be ensured; the reinforcing plate 10 is preferably made of steel plate, and can be fixed to the inner side of the top wall of the mechanism case 1 by welding, riveting, screw fixing, or the like.
In a further embodiment, an interlocking mechanism is arranged between the first operating mechanism 5 and the second operating mechanism 6 in the mechanism box 1, referring to fig. 10 and 11, the interlocking mechanism comprises a limiting block 51 capable of moving along the axial direction of the rotating shaft 61 and a limiting crank arm 67 fixed on the rotating shaft 61 and capable of rotating along with the rotating shaft, a locking groove 52 is arranged on the limiting block 51, the limiting block 51 is linked with the first operating mechanism 5 and drives the limiting block 51 to move between a first position and a second position when the first operating mechanism 5 performs opening and closing actions, the limiting block 51 is in the first position when the first operating mechanism 5 is in a closing state, the limiting groove 52 is dislocated with the limiting crank arm 67, and the limiting block 51 is in the second position when the first operating mechanism 5 is in a separating state, and the locking groove 52 is opposite to the limiting crank arm 67; when the outdoor high-voltage ac vacuum circuit breaker is in a closing state (as shown in fig. 11), the limiting block 51 is in a first position, the movement of the limiting block 51 is not limited by the limiting crank arm 67, the limiting block 51 can resist the limiting crank arm 67 to limit the rotation of the rotating shaft 61, so that the second operating mechanism 6 is kept in the closing state and cannot be opened, in this case, if the outdoor high-voltage ac vacuum circuit breaker is to be controlled to be opened, the vacuum arc-extinguishing chamber can only be controlled to be opened through the first operating mechanism 5 so as to release the limitation of the second operating mechanism 6; when the outdoor high-voltage ac vacuum circuit breaker is in a switching-off state (as shown in fig. 10), the limiting block 51 is in the second position, and the limiting crank arm 67 extends into the locking groove 52 and limits the movement of the limiting block 51, so that the first operating mechanism 5 is kept in the switching-off state and cannot be switched on, in this case, if the outdoor high-voltage ac vacuum circuit breaker is to be controlled to be switched on, the isolating switch can only be controlled to be switched on through the second operating mechanism 6, so that the limitation on the first operating mechanism 5 is released.
By adopting the interlocking mechanism, the interlocking between the first operating mechanism 5 and the second operating mechanism 6 can be realized, so that when the outdoor high-voltage alternating current vacuum circuit breaker is controlled to be disconnected, the first operating mechanism 5 is controlled to act to disconnect the vacuum arc-extinguishing chamber, then the second operating mechanism 6 is controlled to act to disconnect the isolating switch, when the outdoor high-voltage alternating current vacuum circuit breaker is closed, the second operating mechanism 6 is controlled to act to close the isolating switch, and then the first operating mechanism 5 is controlled to act to close the vacuum arc-extinguishing chamber, thereby ensuring the action sequence of the first operating mechanism and the second operating mechanism and preventing misoperation; the interlocking mechanism has the advantages of simple and reasonable structure, easy realization, low failure rate and stable use performance.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the invention remain within the scope of the invention.
Claims (9)
1. An outdoor high-voltage alternating current vacuum circuit breaker comprises a mechanism box (1), three pole posts (2) fixed at the upper part of the mechanism box (1), isolating switches (3) arranged in the pole posts (2), vacuum arc-extinguishing chambers (4) arranged in the pole posts (2), a first operating mechanism (5) arranged in the mechanism box (1) and a second operating mechanism (6) arranged in the mechanism box (1), wherein all the vacuum arc-extinguishing chambers (4) are controlled to be switched on and off through the first operating mechanism (5); all isolating switches (3) are controlled to be switched on and off through a second operating mechanism (6); an operating handle (7) connected with a second operating mechanism (6) is arranged outside the mechanism box (1); the mechanism is characterized in that the second operating mechanism (6) comprises a rotating shaft (61) which is arranged along the length direction of the mechanism box (1) and can rotate around the axis of the second operating mechanism, a transmission frame (62) which is arranged along the length direction of the mechanism box (1) and is limited to be capable of moving in the up-and-down direction, a linkage assembly (63) which is used for connecting the transmission frame (62) and the rotating shaft (61) in a linkage manner, and a connecting piece (64) which is used for connecting a moving contact (31) of the disconnecting switch (3) and the transmission frame (62) respectively at the upper end and the lower end, wherein both ends of the rotating shaft (61) extend out of the mechanism box (1) and are respectively fixed with an operating handle (7) at both ends of the rotating shaft (61), and the transmission frame (62) is driven to move up and down through the linkage assembly (63) when the rotating shaft (61) rotates, and then the moving contact (31) is driven to move up and down through the connecting piece (64).
2. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 1, wherein an isolation bracket (11) is fixed below each pole (2) in the mechanism box (1), a limit sliding hole (12) arranged along the up-down direction is formed in the isolation bracket (11), a connecting plate (621) protruding upwards is fixed on the transmission frame (62), a transverse limit shaft (622) is arranged on the connecting plate (621), the limit shaft (622) penetrates through the limit sliding hole (12), the transmission frame (62) is limited to move only in the up-down direction by matching of the limit shaft (622) and the limit sliding hole (12), and meanwhile the limit shaft (622) is connected with the lower end of the connecting piece (64).
3. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 2, characterized in that the outside of the limit shaft (622) is sleeved with a sleeve (623) capable of rotating around the axis of the sleeve (623) and the sleeve (623) is positioned in the limit sliding hole (12).
4. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 2, wherein the upper end of the isolation bracket (11) is fixedly connected with the inner top of the mechanism box (1), the cross section of the isolation bracket (11) is U-shaped, the isolation bracket comprises two opposite side wall plates (13) and connecting walls (14) for connecting the two side wall plates (13), the two side wall plates (13) are symmetrically provided with the limit sliding holes (12), two ends of the limit shaft (622) are respectively inserted into the corresponding limit sliding holes (12), and the connecting plates (621) extend into the space between the two side wall plates (13) and are connected with the limit shaft (622).
5. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 4, wherein an adjusting screw (65) arranged along the up-down direction is connected to the lower end of the connecting piece (64) in a threaded manner, a sleeve hole is arranged at the lower end of the adjusting screw (65), and the sleeve hole is sleeved with the limiting shaft (622).
6. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 1, wherein the linkage assembly (63) comprises a driving crank arm (631) fixed on the rotating shaft (61) and a guide seat (632) fixed on the transmission frame (62), a strip-shaped hole (633) arranged along the length direction of the driving crank arm (631) is arranged on the driving crank arm, a positioning pin (634) is fixed on the guide seat (632), and the positioning pin (634) penetrates through the strip-shaped hole (633).
7. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 1, wherein a positioning frame (8) is fixed in the mechanism box (1), a copper sleeve (66) is movably sleeved outside the rotating shaft (61), and the copper sleeve (66) is fixed on the positioning frame (8).
8. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 2, wherein the upper end of the isolation bracket (11) is provided with an upward protruding positioning block (15), a reinforcing plate (10) attached to the mechanism box (1) is fixed on the inner side of the top wall of the mechanism box, and a positioning hole matched with the positioning block (15) in an inserting manner is formed in the reinforcing plate (10); the upper end of the isolation bracket (11) is welded and fixed with the reinforcing plate (10).
9. The outdoor high-voltage alternating current vacuum circuit breaker according to claim 1, wherein an interlocking mechanism is arranged between a first operating mechanism (5) and a second operating mechanism (6) in the mechanism box (1), the interlocking mechanism comprises a limiting block (51) capable of moving along the axial direction of the rotating shaft (61) and a limiting crank arm (67) fixed on the rotating shaft (61) and capable of rotating along with the rotating shaft, the limiting block (51) is provided with a locking groove (52), the limiting block (51) is linked with the first operating mechanism (5) and drives the limiting block (51) to move between a first position and a second position when the first operating mechanism (5) is in a closing state, the limiting block (51) is in a first position when the limiting block (52) is in a second position when the limiting block (51) is in a separating state, and the locking groove (52) is opposite to the limiting crank arm (67); when the outdoor high-voltage alternating-current vacuum circuit breaker is in a closing state, the limiting block (51) is in a first position, the movement of the limiting block (51) is not limited by the limiting crank arm (67), the limiting block (51) can resist the limiting crank arm (67) to limit the rotation of the rotating shaft (61), and the second operating mechanism (6) is kept in the closing state and cannot be opened; when the outdoor high-voltage alternating current vacuum circuit breaker is in a brake-separating state, the limiting block (51) is in a second position, and the limiting crank arm (67) stretches into the locking groove (52) and limits the limiting block (51) to move, so that the first operating mechanism (5) is kept in the brake-separating state and cannot be switched on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311873750.5A CN117810020B (en) | 2023-12-31 | 2023-12-31 | Outdoor high-voltage alternating current vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311873750.5A CN117810020B (en) | 2023-12-31 | 2023-12-31 | Outdoor high-voltage alternating current vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117810020A true CN117810020A (en) | 2024-04-02 |
| CN117810020B CN117810020B (en) | 2024-07-05 |
Family
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| CN202311873750.5A Active CN117810020B (en) | 2023-12-31 | 2023-12-31 | Outdoor high-voltage alternating current vacuum circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118263055A (en) * | 2024-04-08 | 2024-06-28 | 徐州锐德数源科技有限公司 | High-voltage circuit breaker opening and closing device |
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| CN2261081Y (en) * | 1996-02-14 | 1997-08-27 | 郑州铁路局西安科学技术研究所 | Indoor hand-cart type high-voltage circuit breaker |
| CN202601502U (en) * | 2012-06-05 | 2012-12-12 | 登高电气有限公司 | Outdoor high-voltage alternating current vacuum breaker |
| WO2018076455A1 (en) * | 2016-10-31 | 2018-05-03 | 国家电网公司 | Servo-drive isolation circuit breaker |
| CN108461333A (en) * | 2018-04-27 | 2018-08-28 | 广东电网有限责任公司 | Combined operation mechanism |
| CN209626152U (en) * | 2019-03-13 | 2019-11-12 | 江苏凯隆电器有限公司 | A kind of moving contact linkage mechanism and threephase switch with brake-dividing locking mechanism |
| CN111192776A (en) * | 2020-02-24 | 2020-05-22 | 正泰电气股份有限公司 | Mechanical interlocking device of isolating switch and circuit breaker |
| CN114597091A (en) * | 2021-11-30 | 2022-06-07 | 俊郎电气有限公司 | Outdoor vacuum circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2261081Y (en) * | 1996-02-14 | 1997-08-27 | 郑州铁路局西安科学技术研究所 | Indoor hand-cart type high-voltage circuit breaker |
| CN202601502U (en) * | 2012-06-05 | 2012-12-12 | 登高电气有限公司 | Outdoor high-voltage alternating current vacuum breaker |
| WO2018076455A1 (en) * | 2016-10-31 | 2018-05-03 | 国家电网公司 | Servo-drive isolation circuit breaker |
| CN108461333A (en) * | 2018-04-27 | 2018-08-28 | 广东电网有限责任公司 | Combined operation mechanism |
| CN209626152U (en) * | 2019-03-13 | 2019-11-12 | 江苏凯隆电器有限公司 | A kind of moving contact linkage mechanism and threephase switch with brake-dividing locking mechanism |
| CN111192776A (en) * | 2020-02-24 | 2020-05-22 | 正泰电气股份有限公司 | Mechanical interlocking device of isolating switch and circuit breaker |
| CN114597091A (en) * | 2021-11-30 | 2022-06-07 | 俊郎电气有限公司 | Outdoor vacuum circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118263055A (en) * | 2024-04-08 | 2024-06-28 | 徐州锐德数源科技有限公司 | High-voltage circuit breaker opening and closing device |
| CN118263055B (en) * | 2024-04-08 | 2024-10-15 | 徐州锐德数源科技有限公司 | High-voltage circuit breaker opening and closing device |
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| Publication number | Publication date |
|---|---|
| CN117810020B (en) | 2024-07-05 |
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