CN113571348B - Operating mechanism for pole-mounted circuit breaker with built-in isolating switch - Google Patents
Operating mechanism for pole-mounted circuit breaker with built-in isolating switch Download PDFInfo
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- CN113571348B CN113571348B CN202110752884.6A CN202110752884A CN113571348B CN 113571348 B CN113571348 B CN 113571348B CN 202110752884 A CN202110752884 A CN 202110752884A CN 113571348 B CN113571348 B CN 113571348B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 52
- 238000004146 energy storage Methods 0.000 claims abstract description 253
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides an operating device for post circuit breaker of built-in isolator, includes energy storage subassembly, power component, switch module, output module, its characterized in that: the energy storage component is respectively connected with the power component, the switch component and the output component and is used for realizing energy storage based on the power component and realizing energy storage release based on the switch component; the power assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to store energy in a manual or electric mode; the switch assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to execute energy storage release or continue energy storage in a manual or electric mode; the output assembly is connected with the energy storage assembly and is used for driving the circuit breaker to realize switching operation in the process of releasing energy storage by the energy storage assembly. The operating mechanism has the advantages of simple structure, convenient operation, good compatibility, safety, reliability and low cost.
Description
Technical Field
The present invention relates to electromagnetic devices, and more particularly, to an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch.
Background
At present, the electric power energy plays an indispensable role in daily production and life of people, so that ensuring safe operation of electric power is important. Isolating switches, load switches, circuit breakers and the like are all important equipment for guaranteeing the electricity safety of the power transmission line, but the above switches are all independent and scattered individuals and are required to be matched with each other in the power transmission line, so that the integration degree is poor.
In the prior art, the pole-mounted circuit breaker is used as a circuit breaker installed and operated on an electric pole, has the characteristics of strong breaking capacity, multiple continuous breaking times, frequent operation, low operation noise, safety, reliability and the like, and is widely applied. However, the control mechanism of the existing columnar circuit breaker generally has the problems of complex structure, difficult assembly, low general degree, short service life, difficult state tracking and the like.
Thus, a new operating mechanism for pole-mounted circuit breakers is needed.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the operating mechanism for the pole-mounted circuit breaker with the built-in isolating switch, which is used for controlling the energy storage input and the energy storage release of the energy storage spring in a manual mode and an electric mode, so that the switching operation of the circuit breaker is realized based on the state of the energy storage spring.
The invention adopts the following technical scheme. The utility model provides an operating device for post circuit breaker of built-in isolator, includes energy storage subassembly, power component, switch module, output module, its characterized in that: the energy storage component is respectively connected with the power component, the switch component and the output component and is used for realizing energy storage based on the power component and realizing energy storage release based on the switch component; the power assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to store energy in a manual or electric mode; the switch assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to execute energy storage release or continue energy storage in a manual or electric mode; and the output assembly is connected with the energy storage assembly and is used for driving the circuit breaker to realize switching operation in the process of releasing energy storage by the energy storage assembly.
Preferably, the energy storage assembly comprises an energy storage spring, a hanging spring plate, a hanging spring shaft and a large gear; one end of the suspension spring plate is provided with a plurality of round holes matched with the energy storage spring steel wire and used for penetrating through the spring steel wire, and two ends of the suspension spring plate are respectively provided with round holes matched with the shaft and used for respectively fixing two ends of the energy storage spring on the suspension spring shaft and the energy storage shaft; the large gear is arranged on the energy storage shaft to transmit the power of the power assembly to the energy storage shaft, so that the energy storage of the energy storage spring is realized.
The power assembly comprises a manual driving assembly, wherein the manual driving assembly comprises a manual driving shaft, a manual driving shaft reset torsion spring, a manual driving crank arm, a one-way bearing and a manual driving output gear shaft; the tail end of the manual driving shaft is fixedly provided with a crank arm, a long waist hole is formed in the crank arm, and the crank arm is matched with a columnar structure on the manual driving crank arm and is used for driving the manual driving crank arm to move when receiving manual energy storage input; the manual driving crank arm is connected with a manual driving output gear shaft through a one-way bearing and is used for carrying out one-way rotation driving on the manual driving output gear shaft; a limiting pin is fixed in the middle of the manual driving shaft, and a manual driving shaft reset torsion spring is arranged between the crank arm and the limiting pin and is used for driving the manual driving shaft to reset after manual energy storage input is completed; the manual drive output gear shaft, the middle part is provided with the gear in order to be connected with the gear wheel meshing in the energy storage subassembly to with the power transmission of manual drive subassembly gives the energy storage subassembly.
Preferably, the power assembly comprises an electric driving assembly, and the electric driving assembly comprises a motor, an electric driving gear and an electric driving gear shaft; wherein, the output end of the motor is provided with a gear to be meshed with the electric driving gear; the electric driving gear is arranged at the top end of the electric driving gear shaft and used for driving the electric driving gear shaft to axially rotate based on the electric driving gear; the middle part of the electric driving gear shaft is provided with gear teeth which are used for being meshed and connected with a large gear in the energy storage component, and the power of the electric driving component is transmitted to the energy storage component.
Preferably, the switch assembly comprises a manual switch assembly, wherein the manual switch assembly comprises a manual switch main shaft, a manual switch auxiliary shaft, a switch shaft connecting rod and a switch shaft crank arm plate; the manual switch main shaft is connected with the manual switch auxiliary shaft through a switch shaft connecting rod and is used for receiving manual switching input; the switch shaft connecting rod comprises two hinge revolute pairs and is used for being connected with the manual switch main shaft and the manual switch auxiliary shaft respectively; the switch shaft crank arm plate is fixedly connected with the manual switch main shaft and the manual switch auxiliary shaft respectively and is used for driving the action contact of the opening and closing electromagnet so as to realize opening and closing operation of the circuit breaker.
Preferably, the switch assembly further comprises a manual switch shaft reset tension spring unit and a manual switch shaft reset spring unit; the manual switch main shaft is also provided with a tension spring pull pin; the manual switch shaft reset tension spring unit is connected with one end of the manual switch shaft reset spring unit through a tension spring pull pin of the manual switch main shaft and is used for driving the manual switch shaft to reset after manual opening and closing input is completed.
Preferably, the switch assembly comprises an electric switch assembly, and the electric switch assembly comprises an opening and closing electromagnet; the switching-on/off electromagnet comprises a switching-off electromagnet and a switching-on electromagnet which are respectively fixedly arranged above a corresponding switch shaft crank arm plate and is used for realizing switching-on/off operation of the circuit breaker based on driving of switching-on/off electric signals.
Preferably, the output assembly comprises an energy storage output assembly comprising an energy storage shaft, a cam, a retention latch assembly, an output shaft assembly and a primary pull rod assembly; the energy storage shaft comprises a front section and a rear section, wherein the two sections are not coaxial, one end of the energy storage shaft is connected with the energy storage assembly, and the other end of the energy storage shaft is fixedly provided with a cam and a retaining pawl assembly in sequence and is used for rotating based on energy storage release of the energy storage unit; the cam is assembled on the energy storage shaft and synchronously rotates along with the energy storage shaft; the retaining detent assembly is used for retaining the closing state of the output shaft assembly; and an output shaft assembly having one end rotatably coupled to the holding pawl assembly and the other end rotatably coupled to one end of the main drawbar assembly for pushing the pin wheel based on rotation of the cam to thereby drive the main drawbar assembly.
Preferably, the output assembly further comprises a breaker spindle connected to the other end of the main drawbar assembly for transmitting movement of the main drawbar assembly into the breaker.
Preferably, the operating mechanism for the pole-mounted circuit breaker further comprises an indication assembly for providing an indication of the stored energy state or the stored energy release state based on rotation of the energy storage shaft.
Preferably, the indicating assembly comprises an energy storage indicating bent plate, an energy storage indicating shaft, an energy storage connecting lock plate and an energy storage indicating shaft reset torsion spring; one end of the energy storage indicating bent plate is fixedly connected to the energy storage shaft, and the other end of the energy storage indicating bent plate is fixedly connected with the energy storage indicating shaft through an energy storage connecting locking plate; the mechanical indication device is used for changing the position of the energy storage indication shaft based on the rotation of the energy storage shaft so as to realize the mechanical indication of the energy storage state or the energy storage release state of the energy storage shaft; the energy storage indicating shaft reset torsion spring is arranged at one end of the energy storage indicating shaft and is used for resetting the energy storage indicating shaft after energy storage release is completed together with the energy storage interlocking piece.
Preferably, the indicating assembly further comprises a micro switch for realizing electronic indication of the energy storage state or the energy storage release state of the energy storage shaft; the back side of the energy storage indication bent plate is provided with a switch transmission part which is used for pressing the micro switch based on the rotation of the energy storage shaft so as to control the switching state of the micro switch.
Preferably, the operating mechanism for the pole-mounted circuit breaker further comprises an auxiliary switch assembly, wherein the auxiliary switch assembly comprises an auxiliary switch, an auxiliary switch clamp, an auxiliary switch connecting rod and an auxiliary switch crank arm; the auxiliary switch is connected with the auxiliary switch crank arm through an auxiliary switch clamp and an auxiliary switch connecting rod; the auxiliary switch crank arm is arranged on the main shaft of the circuit breaker and used for transmitting the rotation state of the main shaft of the circuit breaker to the auxiliary switch; the auxiliary switch is provided with a plurality of opening and closing contacts and is used for transmitting the opening and closing state of the circuit breaker to the secondary control loop based on the opening and closing contacts.
Compared with the prior art, the operating mechanism for the pole-mounted circuit breaker with the built-in isolating switch has the advantages that the operating mechanism drives the energy storage spring to store energy in a manual mode and an electric mode, and the energy storage release of the energy storage spring is realized in the manual mode and the electric mode, so that the switching-on and switching-off operation of the circuit breaker is realized. The operating mechanism has the advantages of simple structure, convenient operation, good compatibility, safety, reliability and low cost.
The beneficial effects of the invention also include:
1. The manual driving assembly realizes unidirectional circular motion of the output gear shaft and energy storage control of the energy storage spring through a simple rocker structure, and the manual driving unit and the electric driving unit are positioned on the same side of the energy storage spring, so that supporting assemblies such as an internal supporting plate and the like are saved, the structure of the operating mechanism is more compact, and the space is saved.
2. According to the invention, the manual switch assembly can realize the transmission of the auxiliary shaft of the manual switch based on the control of the main shaft of the manual switch, so that the operation of the opening electromagnet and the closing electromagnet is driven respectively.
3. In the output assembly, the cam arranged on the energy storage shaft obtains larger kinetic energy, so that the motion of the main shaft of the circuit breaker is controlled more accurately and sensitively on the premise of less energy release.
4. Through setting up the instruction subassembly, adopt electron and mechanical mode to instruct energy storage and energy storage release state to the accuracy and the timeliness of mechanism energy storage state instruction have been ensured. Meanwhile, the working state of the circuit breaker is accurately transmitted to the secondary control loop through the auxiliary switch assembly, so that the secondary control loop synchronously and accurately acquires the working state of the circuit breaker on the pole.
Drawings
Fig. 1 is a schematic view showing the general assembly structure of an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention;
Fig. 2 is a schematic structural diagram of an energy storage component in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention;
fig. 3 is a schematic structural view of a manual driving assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention;
fig. 4 is a schematic structural view of an electric driving assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention;
fig. 5 is a schematic structural view of a switch assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention;
Fig. 6 is a schematic structural diagram of an energy storage output assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention;
FIG. 7 is a schematic view of the pointing assembly of the operating mechanism for the pole-mounted circuit breaker with the built-in disconnector according to the present invention;
fig. 8 is a schematic structural view of an auxiliary switch assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention.
Reference numerals:
0-energy storage component, 01-energy storage spring, 02-hanging spring plate, 03-hanging spring shaft, 04-large gear, 1-manual driving component, 11-manual driving shaft, 12-manual driving shaft reset torsion spring, 13-manual driving crank arm, 14-single-phase bearing, 15-manual driving output gear shaft, 2-electric driving component, 21-motor, 22-electric driving gear, 23-electric driving gear shaft, 3-manual switch component, 31-manual switch main shaft, 32-manual switch auxiliary shaft, 33-switch shaft connecting rod, 34-switch shaft crank arm plate, 36-manual switch shaft reset tension spring unit, 37-manual switch shaft reset spring unit, 4-electric switch assembly, 41-opening and closing electromagnet, 5-energy storage output assembly, 51-energy storage shaft, 52-cam, 53-holding latch assembly, 531-end holding latch, 54-output shaft assembly, 541, 542-latch wheel, 55-main pull rod assembly, 6-indication assembly, 61-energy storage indication bent plate, 62-micro switch, 63-energy storage indication shaft, 64-energy storage connection plate, 65-energy storage indication shaft reset torsion spring, 7-breaker main shaft, 8-auxiliary switch assembly, 81-auxiliary switch, 82-auxiliary switch Guan Gazi, 83-auxiliary switch Guan Liangan, 84-auxiliary switch crank arm.
Detailed Description
The application is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and are not intended to limit the scope of the present application.
Fig. 1 is a schematic diagram showing the general assembly structure of an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. As shown in fig. 1, an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch comprises an energy storage component, a power component, a switch component and an output component.
And the energy storage component 0 is respectively connected with the power component, the switch component and the output component 5 and is used for realizing energy storage based on the power component and realizing energy storage release based on the switch component. And the power assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to store energy in a manual or electric mode. The switch assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to execute energy storage release or continue energy storage in a manual or electric mode. And the output assembly is connected with the energy storage assembly and is used for driving the circuit breaker to realize switching operation in the process of releasing energy storage by the energy storage assembly.
Fig. 2 is a schematic structural diagram of an energy storage assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. Preferably, as shown in fig. 2, the energy storage assembly 0 includes an energy storage spring 01, a suspension spring plate 02, a suspension spring shaft 03 and a gearwheel 04; one end of the suspension spring plate 02 is provided with a plurality of round holes matched with the steel wires of the energy storage spring 01, the round holes matched with the shafts are respectively arranged at two ends of the suspension spring plate, and the two ends of the energy storage spring 01 are respectively fixed on the suspension spring shaft 03 and the energy storage shaft 51; the large gear 04 is arranged on the energy storage shaft 51 to transmit the power of the power assembly to the energy storage shaft 51, so that the energy storage of the energy storage spring 01 is realized.
Fig. 3 is a schematic structural view of a manual driving assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. As shown in fig. 3, the power assembly comprises a manual driving assembly 1, wherein the manual driving assembly 1 comprises a manual driving shaft 11, a manual driving shaft reset torsion spring 12, a manual driving crank arm 13, a single-phase bearing 14 and a manual driving output gear shaft 15.
The tail end of the manual driving shaft 11 is fixedly provided with a crank arm, a long waist hole is formed in the crank arm, and the crank arm is matched with a columnar structure on the manual driving crank arm 13 and used for driving the manual driving crank arm 13 to move when receiving manual energy storage input. The manual driving crank arm 13 is connected with a manual driving output gear shaft 15 through a single-phase bearing 14 and is used for carrying out single-phase rotation driving on the manual driving output gear shaft 15. A limiting pin is fixed in the middle of the manual driving shaft 11, and a manual driving shaft reset torsion spring 12 is arranged between the crank arm and the limiting pin and is used for driving the manual driving shaft 11 to reset after manual energy storage input is completed. The output gear shaft 15 is manually driven, a gear is arranged in the middle of the output gear shaft to be meshed with the large gear 04 in the energy storage assembly 0, and the power of the manual driving assembly is transmitted to the energy storage assembly 0.
As shown in fig. 3, by applying a manual energy storage input to the manual driving shaft 11, that is, by manually rotating the manual driving shaft 11, after the manual driving output gear shaft 15 is circularly moved around its axis, the unidirectional bearing 14 will drive the manual driving output gear shaft 15 to rotate, so that the gears on the gear shaft 15 rotate, and drive the gears in the energy storage assembly meshed with the gears to rotate and realize energy storage.
Specifically, the one-way bearing 14 can only transmit a one-way directional moment. Therefore, the one-way bearing 14 can be used for carrying out one-way rotation driving on the manual driving output gear shaft 15, and can be used for realizing the mutual switching between the manual driving assembly and the electric driving assembly when the energy storage assembly stores energy. The unidirectional bearing has the characteristic of unidirectional torque transmission, so that the integral energy storage effect of the energy storage component 0 is not influenced in the switching process of the manual driving component and the electric driving component.
Fig. 4 is a schematic structural view of an electric driving assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. As shown in fig. 4, the power assembly preferably comprises an electric drive assembly 2, wherein the electric drive assembly 2 comprises a motor 21, an electric drive gear 22 and an electric drive gear shaft 23; wherein a gear is arranged on the output end of the motor 21 to be meshed with the electric driving gear 22; an electric drive gear 22 disposed at the top end of the electric drive gear shaft 23 for driving the electric drive gear shaft 23 to axially rotate based on the electric drive gear 22; the middle part of the electric driving gear shaft 23 is provided with gear teeth for being meshed with the large gear 04 in the energy storage assembly 0 to transmit the power of the electric driving assembly 2 to the energy storage assembly 0.
Fig. 5 is a schematic structural view of a switch assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. As shown in fig. 5, the switch assembly includes a manual switch assembly 3, and the manual switch assembly 3 includes a manual switch main shaft 31, a manual switch auxiliary shaft 32, a switch shaft link 33, and a switch shaft lever plate 34.
The manual switch main shaft 31 is connected to the manual switch auxiliary shaft 32 via a switch shaft link 33, and receives a manual switching input.
The switch shaft link 33 includes two hinge revolute pairs for connection with the manual switch main shaft 31 and the manual switch auxiliary shaft 32, respectively. The switch shaft crank arm plate 34 is fixedly connected with the manual switch main shaft 31 and the manual switch auxiliary shaft 32 respectively and is used for driving the action contact of the opening and closing electromagnet 41 so as to realize the opening and closing operation of the circuit breaker.
Preferably, the switch assembly further includes a manual switch shaft return tension spring unit 36 and a manual switch shaft return spring unit 37. The manual switch main shaft 31 is also provided with a tension spring pull pin. Wherein, the one end of manual switch shaft reset spring unit 36 and manual switch shaft reset spring unit 37 is connected with the extension spring pull pin of manual switch main shaft 31 for after accomplishing manual separation and combination input, drive manual switch shaft 31 and reset.
As shown in fig. 5, by driving the manual switch spindle, the two electromagnets can respectively realize movement in different movement paths, so as to drive the energy storage spring to realize continuous energy storage and energy storage release.
As shown in fig. 5, preferably, the switch assembly includes an electric switch assembly 4, and the electric switch assembly 4 includes an opening and closing electromagnet 41; the opening and closing electromagnet 41 comprises an opening electromagnet and a closing electromagnet which are respectively fixedly arranged above the corresponding switch shaft crank arm plate 34 and is used for realizing opening and closing operation of the circuit breaker based on driving of an opening and closing electric signal. Specifically, the action contact can still be manually operated by the switch shaft lever plate 34 in the manual switch assembly 3 when the opening and closing electric signal is not obtained, so that the purpose of opening and closing the circuit breaker is achieved.
Fig. 6 is a schematic structural diagram of an energy storage output assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. As shown in fig. 6, the output assembly includes a stored energy output assembly 5, the stored energy output assembly 5 including a stored energy shaft 51, a cam 52, a retention latch assembly 53, an output shaft assembly 54, and a main pull rod assembly 55.
The energy storage shaft 51 comprises a front section and a rear section, the two sections are not coaxial, one end of the energy storage shaft is connected with the energy storage component, and the other end of the energy storage shaft is fixedly provided with a cam 52 and a retaining detent component 53 in sequence and is used for rotating based on energy storage release of the energy storage unit. The cam 52 is assembled on the energy storage shaft 51 and rotates synchronously with the energy storage shaft 51, when the energy storage component 0 releases energy, the energy storage shaft 51 is driven to rotate, the cam 52 obtains kinetic energy, and the cam 52 is crashed onto the pin wheel 542 of the output shaft component 54 in the rotation process of the energy storage shaft 51, so that the output shaft component 54 obtains a moment with certain energy, and the energy of the energy storage component 0 is transmitted to the energy storage output component 5. A holding pawl assembly 53 having an end holding pawl 531 in contact with a latch wheel 542 of the output shaft assembly 54 for holding the output shaft 51 in a closed state; the output shaft assembly 54, one end of which is rotatably coupled to the holding pawl 53 and the other end of which is rotatably coupled to one end of the main drawbar assembly 55, is configured to push the pin wheel 542 based on the rotation of the cam 52, thereby driving the main drawbar assembly 55.
Preferably, the output assembly further comprises a circuit breaker spindle 7 connected to the other end of the main drawbar assembly 55 for transmitting movement of the main drawbar assembly 55 into the circuit breaker.
Fig. 7 is a schematic structural view of an indication assembly in an operation mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. As shown in fig. 7, the operating mechanism for the pole-mounted circuit breaker further includes an indication assembly 6, the indication assembly 6 being configured to provide an indication of the stored energy state or the stored energy release state based on the rotation of the energy storage shaft 51.
Preferably, the indicating assembly 6 includes an energy storage indicating bent plate 61, an energy storage indicating shaft 63, an energy storage connecting plate 64, and an energy storage indicating shaft reset torsion spring 65.
One end of the energy storage indicating bent plate 61 is fixedly connected to the energy storage shaft 51, and the other end of the energy storage indicating bent plate is fixedly connected with the energy storage indicating shaft 63 through an energy storage connecting plate 64; for changing the position of the stored energy indication shaft 63 based on the rotation of the stored energy shaft 51, thereby achieving a mechanical indication of the stored energy state or the stored energy release state of the stored energy shaft 51. The energy storage indicating shaft reset torsion spring 65 is disposed at one end of the energy storage indicating shaft 63 and is used together with the energy storage connecting plate 64 to reset the energy storage indicating shaft 63 after the energy storage is released.
Preferably, the indicating assembly 6 further comprises a micro switch 62 for realizing electronic indication of the energy storage state or the energy storage release state of the energy storage shaft 51; the back side of the energy storage indication bent plate 61 is provided with a switch transmission part for pressing the micro switch 62 based on the rotation of the energy storage shaft 51 so as to control the on-off state of the micro switch.
Specifically, as shown in fig. 7, since the energy storage indicating bent plate 61 and the micro switch 62 have a fixed distance therebetween, the switch driving part of the back thereof may contact or strike the micro switch 62 when the energy storage indicating bent plate 61 moves based on the rotation of the energy storage shaft 51. The micro switch switches its operating state after receiving the contact of the back switch driving part of the energy storage indication bent plate 61.
Through the micro switch and the energy storage indicating bent plate, the state indication in two modes of electronics and machinery can be realized at the same time, and the reliability of the state indication is improved.
Fig. 8 is a schematic structural view of an auxiliary switch assembly in an operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to the present invention. As shown in fig. 8, the operation mechanism for the pole-mounted circuit breaker further includes an auxiliary switch assembly 8, the auxiliary switch assembly 8 including an auxiliary switch 81, an auxiliary switch clip 82, an auxiliary switch link 83, and an auxiliary switch crank arm 84; wherein the auxiliary switch 81 is connected with an auxiliary switch crank arm 84 through an auxiliary switch clip 82 and an auxiliary switch connecting rod 83. An auxiliary switch lever 84 is provided on the breaker main shaft 7 for transmitting the rotation state of the breaker main shaft 7 to the auxiliary switch 81. The auxiliary switch 81 has a plurality of opening and closing contacts for transmitting the opening and closing state of the circuit breaker to the secondary control circuit based on the opening and closing contacts.
Based on the auxiliary switch assembly, the operating mechanism can transmit the state of the circuit breaker to a secondary circuit related to the circuit breaker accurately in real time, so that the secondary circuit can acquire the state of the circuit breaker timely, and the functions of detecting, controlling, adjusting, protecting and the like related to the circuit breaker are realized.
Compared with the prior art, the operating mechanism for the pole-mounted circuit breaker with the built-in isolating switch has the advantages that the operating mechanism drives the energy storage spring to store energy in a manual mode and an electric mode, and the energy storage release of the energy storage spring is realized in the manual mode and the electric mode, so that the switching-on and switching-off operation of the circuit breaker is realized. The operating mechanism has the advantages of simple structure, convenient operation, good compatibility, safety, reliability and low cost.
The beneficial effects of the invention also include:
1. The manual driving assembly realizes unidirectional circular motion of the output gear shaft and energy storage control of the energy storage spring through a simple rocker structure, and the manual driving unit and the electric driving unit are positioned on the same side of the energy storage spring, so that supporting assemblies such as an internal supporting plate and the like are saved, the structure of the operating mechanism is more compact, and the space is saved.
2. According to the invention, the manual switch assembly can realize the transmission of the auxiliary shaft of the manual switch based on the control of the main shaft of the manual switch, so that the operation of the opening electromagnet and the closing electromagnet is driven respectively.
3. In the output assembly, the cam arranged on the energy storage shaft obtains larger kinetic energy, so that the motion of the main shaft of the circuit breaker is controlled more accurately and sensitively on the premise of less energy release.
4. Through setting up the instruction subassembly, adopt electron and mechanical mode to instruct energy storage and energy storage release state to the accuracy and the timeliness of mechanism energy storage state instruction have been ensured. Meanwhile, the working state of the circuit breaker is accurately transmitted to the secondary control loop through the auxiliary switch assembly, so that the secondary control loop synchronously and accurately acquires the working state of the circuit breaker on the pole.
While the applicant has described and illustrated the embodiments of the present invention in detail with reference to the drawings, it should be understood by those skilled in the art that the above embodiments are only preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not to limit the scope of the present invention, but any improvements or modifications based on the spirit of the present invention should fall within the scope of the present invention.
Claims (12)
1. The utility model provides an operating device for post circuit breaker of built-in isolator, includes energy storage subassembly, power component, switch module, output module, its characterized in that:
The energy storage component is respectively connected with the power component, the switch component and the output component and is used for realizing energy storage based on the power component and realizing energy storage release based on the switch component;
The power assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to store energy in a manual or electric mode;
the switch assembly is connected with the energy storage assembly and is used for driving the energy storage assembly to execute energy storage release or continue energy storage in a manual or electric mode;
The switch assembly comprises a manual switch assembly (3), wherein the manual switch assembly (3) comprises a manual switch main shaft (31), a manual switch auxiliary shaft (32), a switch shaft connecting rod (33) and a switch shaft crank arm plate (34);
The manual switch main shaft (31) is connected with the manual switch auxiliary shaft (32) through the switch shaft connecting rod (33) and is used for receiving manual switching input;
two hinge revolute pairs connected to the manual switch auxiliary shaft (32);
the switch shaft crank arm plate (34) is used for driving an action contact of the opening and closing electromagnet (41) so as to realize opening and closing operation of the circuit breaker;
the output assembly is connected with the energy storage assembly and is used for driving the circuit breaker to realize switching operation in the process of releasing energy storage by the energy storage assembly;
the power assembly comprises a manual driving assembly (1), and a manual driving shaft (11) in the manual driving assembly (1) and a manual switch main shaft (31) in the manual switch assembly (3) are arranged in parallel in the same direction.
2. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
The energy storage assembly (0) comprises an energy storage spring (01), a hanging spring plate (02), a hanging spring shaft (03) and a large gear (04);
One end of the hanging spring plate (02) is provided with a plurality of round holes matched with steel wires of the energy storage spring (01) and used for penetrating through the steel wires of the spring, and two ends of the hanging spring plate are respectively provided with round holes matched with shafts and used for respectively fixing two ends of the energy storage spring (01) on the hanging spring shaft (03) and the energy storage shaft (51);
The large gear (04) is arranged on the energy storage shaft (51) to transmit power of the power assembly to the energy storage shaft (51), so that energy storage of the energy storage spring (01) is achieved.
3. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
the manual driving assembly (1) comprises a manual driving shaft (11), a manual driving shaft reset torsion spring (12), a manual driving crank arm (13), a one-way bearing (14) and a manual driving output gear shaft (15);
The tail end of the manual driving shaft (11) is fixedly provided with a crank arm, a long waist hole is formed in the crank arm, and the crank arm is matched with a columnar structure on the manual driving crank arm (13) and is used for driving the manual driving crank arm (13) to move when receiving manual energy storage input;
The manual driving crank arm (13) is connected with the manual driving output gear shaft (15) through the one-way bearing (14) and is used for carrying out one-way rotation driving on the manual driving output gear shaft (15);
A limiting pin is fixed in the middle of the manual driving shaft (11), and a manual driving shaft reset torsion spring (12) is arranged between the crank arm and the limiting pin and is used for driving the manual driving shaft (11) to reset after manual energy storage input is completed;
The manual driving output gear shaft (15) is provided with a gear at the middle part to be meshed with the large gear (04) in the energy storage component (0), and transmits the power of the manual driving component (1) to the energy storage component (0).
4. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
The power assembly comprises an electric driving assembly (2), wherein the electric driving assembly (2) comprises a motor (21), an electric driving gear (22) and an electric driving gear shaft (23);
Wherein a gear is arranged at the output end of the motor (21) to be meshed with the electric driving gear (22);
The electric driving gear (22) is arranged at the top end of the electric driving gear shaft (23) and is used for driving the electric driving gear shaft (23) to rotate around the axial direction based on the electric driving gear (22);
The electric driving gear shaft (23) is provided with gear teeth in the middle, and is used for being meshed and connected with the large gear (04) in the energy storage assembly (0) to transmit the power of the electric driving assembly (2) to the energy storage assembly (0).
5. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
The switch shaft crank arm plate (34) is fixedly connected with the manual switch main shaft (31) and the manual switch auxiliary shaft (32) respectively; the switch assembly further comprises a manual switch shaft reset tension spring unit (36) and a manual switch shaft reset spring unit (37);
the manual switch main shaft (31) is also provided with a tension spring pull pin;
The manual switch shaft reset tension spring unit (36) is connected with one end of the manual switch shaft reset spring unit (37) through a tension spring pull pin of the manual switch main shaft (31) and is used for driving the manual switch main shaft (31) to reset after manual switching input is completed.
6. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
the switch assembly comprises an electric switch assembly (4), and the electric switch assembly (4) comprises an opening and closing electromagnet (41);
the opening and closing electromagnet (41) comprises an opening and closing electromagnet and a closing electromagnet which are respectively and fixedly arranged above a corresponding switch shaft crank arm plate (34) and is used for realizing opening and closing operation of the circuit breaker based on driving of opening and closing electric signals.
7. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
The output assembly comprises an energy storage output assembly (5), wherein the energy storage output assembly (5) comprises an energy storage shaft (51), a cam (52), a retaining detent assembly (53), an output shaft assembly (54) and a main pull rod assembly (55);
The energy storage shaft (51) comprises a front section and a rear section, wherein the two sections are not coaxial, one end of the energy storage shaft is connected with the energy storage component, and the other end of the energy storage shaft is fixedly provided with a cam (52) and a retaining pawl component (53) in sequence and is used for rotating based on energy storage release of the energy storage unit;
the cam (52) is assembled on the energy storage shaft (51) and synchronously rotates along with the energy storage shaft (51);
the retaining detent assembly (53) is used for retaining the closing state of the output shaft assembly (54);
The output shaft assembly (54) is rotatably connected at one end to the holding pawl assembly (53) and at the other end to one end of the main drawbar assembly (55) for pushing a pin wheel (542) based on the rotation of the cam (52) to thereby drive the main drawbar assembly (55).
8. The operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to claim 7, wherein:
The output assembly further comprises a breaker spindle (7) connected to the other end of the main pull rod assembly (55) for transmitting the movement of the main pull rod assembly (55) into the breaker.
9. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
The operating mechanism for the pole-mounted circuit breaker further comprises an indicating assembly (6), wherein the indicating assembly (6) is used for providing indication of an energy storage state or an energy storage release state based on rotation of the energy storage shaft (51).
10. The operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to claim 9, wherein:
the indicating assembly (6) comprises an energy storage indicating bent plate (61), an energy storage indicating shaft (63), an energy storage connecting plate (64) and an energy storage indicating shaft reset torsion spring (65);
One end of the energy storage indicating bent plate (61) is fixedly connected to the energy storage shaft (51), and the other end of the energy storage indicating bent plate is fixedly connected with the energy storage indicating shaft (63) through the energy storage connecting plate (64); for changing the position of the energy storage indication shaft (63) based on the rotation of the energy storage shaft (51), thereby enabling a mechanical indication of the energy storage state or energy storage release state of the energy storage shaft (51);
The energy storage indicating shaft reset torsion spring (65) is arranged at one end of the energy storage indicating shaft (63) and is used for resetting the energy storage indicating shaft (63) after energy storage release is completed together with the energy storage connecting plate (64).
11. The operating mechanism for a pole-mounted circuit breaker with a built-in disconnecting switch according to claim 9, wherein:
The indicating assembly (6) further comprises a micro switch (62) for realizing electronic indication of the energy storage state or the energy storage release state of the energy storage shaft (51);
the back side of the energy storage indicating bent plate (61) is provided with a switch transmission part which is used for pressing the micro switch (62) based on the rotation of the energy storage shaft (51) so as to control the switching state of the micro switch.
12. An operating mechanism for a pole-mounted circuit breaker with a built-in isolating switch as in claim 1, wherein:
The operating mechanism for the pole-mounted circuit breaker further comprises an auxiliary switch assembly (8), wherein the auxiliary switch assembly (8) comprises an auxiliary switch (81), an auxiliary switch clamp (82), an auxiliary switch connecting rod (83) and an auxiliary switch crank arm (84);
wherein the auxiliary switch (81) is connected with the auxiliary switch crank arm (84) through the auxiliary switch clamp (82) and the auxiliary switch connecting rod (83);
The auxiliary switch crank arm is arranged on the main shaft (7) of the circuit breaker and is used for transmitting the rotation state of the main shaft (7) of the circuit breaker to the auxiliary switch (81);
The auxiliary switch (81) is provided with a plurality of opening and closing contacts and is used for transmitting the opening and closing state of the circuit breaker to the secondary control loop based on the opening and closing contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752884.6A CN113571348B (en) | 2021-07-02 | 2021-07-02 | Operating mechanism for pole-mounted circuit breaker with built-in isolating switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752884.6A CN113571348B (en) | 2021-07-02 | 2021-07-02 | Operating mechanism for pole-mounted circuit breaker with built-in isolating switch |
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| CN113571348B true CN113571348B (en) | 2024-05-10 |
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| CN113571348A (en) | 2021-10-29 |
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