CN117995618A - Spring operating mechanism of circuit breaker - Google Patents
Spring operating mechanism of circuit breaker Download PDFInfo
- Publication number
- CN117995618A CN117995618A CN202410322851.1A CN202410322851A CN117995618A CN 117995618 A CN117995618 A CN 117995618A CN 202410322851 A CN202410322851 A CN 202410322851A CN 117995618 A CN117995618 A CN 117995618A
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- energy storage
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- spring
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- 230000007246 mechanism Effects 0.000 title claims abstract description 138
- 238000004146 energy storage Methods 0.000 claims abstract description 185
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 238000003825 pressing Methods 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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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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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a breaker spring operating mechanism, comprising: the circuit breaker comprises a main frame and a circuit breaker spring operating assembly, wherein the main frame comprises a first side plate and a second side plate, and the first side plate is fixedly connected with the second side plate through a plurality of supporting blocks; the breaker spring operating assembly is arranged on the main frame and comprises an energy storage shaft, a hanging spring shaft, two energy storage springs, a transmission mechanism, a manual driving mechanism, an electric driving mechanism and a closing mechanism. The circuit breaker spring operating mechanism provided by the invention comprises an energy storage shaft, a hanging spring shaft, two energy storage springs, a transmission mechanism, a manual driving mechanism, an electric driving mechanism and a closing mechanism, wherein the energy storage shaft, the hanging spring shaft, the two energy storage springs, the transmission mechanism, the manual driving mechanism, the electric driving mechanism and the closing mechanism are all arranged on a main frame to form an integrated modularized structure, so that the circuit breaker spring operating mechanism is compact and stable in structure and convenient to install.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a spring operating mechanism of a circuit breaker.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, and the division of a high-voltage boundary line and a low-voltage boundary line is fuzzy, and is generally called as a high-voltage electrical appliance with the voltage of more than 3 kV. The circuit breaker can be used for distributing electric energy, starting the asynchronous motor infrequently, protecting a power line, the motor and the like, and automatically cutting off the circuit when serious overload or short circuit, undervoltage and other faults occur, and the functions of the circuit breaker are equivalent to the combination of a fuse type switch, an over-under-heating relay and the like. And the parts are not required to be changed after breaking the fault current. A wide range of applications have been achieved.
At present, china patent publication No. CN102543501B discloses a circuit breaker spring operating mechanism, which comprises a frame, an energy storage component, a closing component and a separating brake component; the energy storage assembly comprises an energy storage driving device, a large gear, an energy storage shaft, two energy storage crank arms, two closing springs, an energy storage clutch block and an energy storage retaining detent; the switching-on assembly comprises a switching-on driving device, a switching-on electromagnet bent plate and a switching-on driving crank arm; the brake separating assembly comprises a brake separating driving device and a brake separating electromagnet bent plate.
The breaker spring operating mechanism fully utilizes the internal space of the operating mechanism, has accurate assembly positions of parts, orderly and concentrated functional units, ensures the integrity of functions and the reliability of transmission links, and realizes the integration of the operating mechanism. Meanwhile, the balance of stress and the rationality of the structure in the action process of the circuit breaker are fully considered, the designed circuit breaker spring operating mechanism has compact structure and small volume, and circuit breaker frames with different specifications can be assembled in a light and loose mode, so that great convenience is brought to the batch production and the universalization of products. However, the breaker spring operating mechanism is compact in structure and low in stability degree in the actual use process, and has a large improvement space.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a spring operating mechanism of a circuit breaker.
The specific technical scheme is as follows:
A circuit breaker spring operated mechanism comprising: the main frame comprises a first side plate and a second side plate, and the first side plate is fixedly connected with the second side plate through a plurality of supporting blocks;
the circuit breaker spring operating assembly is arranged on the main frame, and comprises an energy storage shaft, a hanging spring shaft, two energy storage springs, a transmission mechanism, a manual driving mechanism, an electric driving mechanism and a closing mechanism, wherein:
The energy storage shaft is rotatably mounted on the first side plate and the second side plate through bearings, the energy storage shaft penetrates through the first side plate and the second side plate respectively, two ends of the energy storage shaft are fixedly provided with energy storage crank arms respectively, the far end of each energy storage crank arm is rotatably provided with a spring seat, the hanging spring shaft fixedly penetrates through the first side plate and the second side plate, two ends of the hanging spring shaft are rotatably provided with hanging spring seats respectively, two energy storage springs are fixedly mounted between the hanging spring seats and the spring seats on the same side respectively, the transmission mechanism is sleeved on the energy storage shaft, the manual driving mechanism is mounted on the first side plate and the second side plate and used for driving the transmission mechanism to drive the energy storage shaft to rotate, and the electric driving mechanism is mounted on the first side plate and the second side plate and used for driving the transmission mechanism to drive the energy storage shaft to rotate;
The switching-on mechanism is used for switching on and off the circuit breaker, and the manual driving mechanism and the electric driving mechanism are both used for driving the transmission mechanism to drive the switching-on mechanism to switch on and off.
As a preferred scheme of the invention, the transmission mechanism comprises a gear wheel, a clutch pawl, a clutch pin, a limit screw, two cams, a supporting shaft, two fixing sleeves, an installation shaft and two bent plates, wherein the gear wheel is rotatably sleeved on the energy storage shaft through a bearing, the clutch wheel is fixedly sleeved on the energy storage shaft, the clutch wheel is arranged close to the gear wheel, a limit groove is formed on the wheel surface of the clutch wheel, the clutch pawl is rotatably installed on one side surface of the gear wheel facing the clutch wheel through a rotating rod, one end of the clutch pawl can be clamped into the limit groove, the clutch pin is fixedly installed on the inner side wall of a first side plate, the limit screw is fixedly screwed on one side surface of the gear wheel facing the clutch wheel, the other end of the clutch pawl is movably stretched between the limit screw and the clutch pin, the two cams are fixedly sleeved on the energy storage shaft, a cylindrical pressing block is rotatably installed on the two cams, the supporting shaft is rotatably installed on one side surface of the first side plate and one side plate is fixedly sleeved on the other side plate, and the other side plate is fixedly sleeved with the other side plate, the other side plate is fixedly matched with the torsion spring, the other side plate is fixedly sleeved with the torsion spring, and the other side plate is kept at an included angle between the two side plates and the fixed by the torsion sleeve and the fixed sleeve, and the side plate is kept at the fixed between the two side plates and the fixed, the torsion spring is used for controlling the far end of the closing holding pawl to be always propped against the cylindrical surface of the cylindrical pressing block, the fixed plate is fixedly arranged between the first side plate and the second side plate, one end of the connecting sheet, which is far away from the fixed sleeve, is hinged with a connecting rod, the mounting shaft is fixedly arranged between the first side plate and the second side plate, the two bent plates are both rotatably sleeved on the mounting shaft, the bottom end of the corresponding bent plate is hinged with one end of the connecting rod, which is far away from the connecting sheet, and the upper end of the bent plate is propped against the closing mechanism, and the large gear can only drive the energy storage shaft to rotate anticlockwise under the mutual matching of the clutch wheel, the limiting groove, the clutch pawl, the clutch pin and the limiting screw, so that the energy storage shaft can be prevented from driving the large gear to rotate clockwise when the energy storage spring releases energy;
The manual driving mechanism comprises a manual driving shaft, an energy storage handle and a manual driving gear, the manual driving shaft is rotatably arranged on the second side plate, the energy storage handle is fixedly arranged at one end of the manual driving shaft, the manual driving gear is fixedly sleeved on the manual driving shaft, and the manual driving gear is meshed with the large gear;
The electric driving mechanism comprises an energy storage motor, a driving gear, a transmission shaft, a driven gear and a transmission gear, wherein the energy storage motor is fixedly arranged on the first side plate, the driving gear is fixedly arranged on an output shaft of the energy storage motor, the transmission shaft is rotatably arranged on the first side plate and the second side plate, the driven gear and the transmission gear are fixedly sleeved on the transmission shaft, the driven gear is meshed with the driving gear, and the transmission gear is meshed with the large gear;
The switching-on mechanism comprises a fixed frame and two switching-on devices, wherein the fixed frame is fixedly arranged between a first side plate and a second side plate, the two switching-on devices are arranged side by side and fixedly arranged on the fixed frame, the positions of the two switching-on devices respectively correspond to the upper ends of the two bent plates, each switching-on device comprises a cylindrical insulating shell, a cylindrical electromagnet, an upper binding post, a conductive block, a cylindrical permanent magnet, a lower binding post, a conductive rod and a return spring, the cylindrical insulating shell is fixedly arranged on the fixed frame, the cylindrical electromagnet is fixedly arranged in the cylindrical insulating shell, the cylindrical electromagnet is close to the upper end of the cylindrical insulating shell, the upper binding post is fixedly arranged on the upper end wall of the cylindrical insulating shell, the conductive block is fixedly arranged at the bottom of the cylindrical electromagnet, the conductive block is electrically connected with the upper binding post, the conductive block and the cylindrical electromagnet are circumferentially arranged at an upper annular groove, the cylindrical permanent magnet is slidably arranged in the cylindrical insulating shell, the cylindrical permanent magnet and the cylindrical electromagnet is mutually close to the cylindrical electromagnet, the cylindrical electromagnet is arranged at the position of the cylindrical permanent magnet, which is far away from the cylindrical permanent magnet, and is far from the cylindrical permanent magnet, the cylindrical permanent magnet is arranged at the end face of the cylindrical electromagnet, and is far away from the cylindrical permanent magnet, the reset spring is arranged between the lower annular groove and the upper annular groove, and is sleeved on the periphery of the conducting rod;
The bottom end of the lower binding post is propped against the upper end of the bent plate, when the electric driving mechanism or the manual driving mechanism drives the large gear to drive the energy storage shaft to rotate anticlockwise, the energy storage shaft drives the energy storage crank arm to drive the energy storage spring to extend and store energy, meanwhile, the energy storage shaft drives the cam to rotate anticlockwise, the cam rotates anticlockwise to drive the cylindrical pressing block to press the closing holding pawl, the closing holding pawl drives the connecting sheet to move through the fixing sleeve, the connecting sheet drives the bent plate to rotate clockwise around the mounting shaft through the connecting rod, the upper end of the bent plate drives the bottom end of the lower binding post to move upwards, the lower binding post drives the cylindrical permanent magnet to move upwards, and the cylindrical permanent magnet drives the conducting rod to move upwards and overcomes the resistance of the reset spring to contact and conduct with the conducting block;
When the current passing through the upper binding post is beyond a set value due to load or short circuit, the magnetic force of the cylindrical electromagnet is increased, the cylindrical permanent magnet is driven to move away from the cylindrical electromagnet by utilizing the effect that the same-name magnetic poles repel each other, the cylindrical permanent magnet drives the conducting rod to be separated from the conducting block so that the circuit breaker is disconnected, meanwhile, the cylindrical permanent magnet drives the lower binding post to move downwards, the lower binding post pushes the bent plate to rotate anticlockwise around the mounting shaft, the bent plate reversely pushes the connecting rod to drive the connecting piece to move, the connecting piece drives the closing holding pawl to lift the cylindrical pressing block upwards through the fixing sleeve, the cylindrical pressing block drives the cam to drive the energy storage shaft to rotate clockwise, the energy storage spring is excited to release energy when the energy storage shaft rotates clockwise, and the circuit breaker can be kept disconnected after the energy storage spring releases energy, the bent plate is shortened.
As a preferred scheme of the invention, the circuit breaker further comprises a buffer mechanism, wherein the buffer mechanism is used for reducing impact force generated when the bent plate moves when the circuit breaker is disconnected, the buffer mechanism comprises a buffer seat, a buffer rod, a fixing pin, a buffer bent arm and a buffer spring, the buffer seat is fixedly arranged on one side wall of the first side plate, which faces the second side plate, the buffer rod is fixedly arranged at one end of the buffer seat, which faces the bent plate, the fixing pin is fixedly arranged on one side wall of the first side plate, which faces the second side plate, the middle part of the buffer bent arm is hinged on the fixing pin, the bottom end of the buffer bent arm is provided with a through groove, the upper end of the buffer bent arm is propped against the bottom end of the bent plate, the buffer rod movably passes through the through groove at the bottom end of the buffer bent arm, the buffer rod is far away from the through groove at the bottom end of the buffer seat, the hook is used for preventing the buffer rod from being separated from the buffer bent arm, the buffer spring is sleeved on the buffer rod, and the buffer bent arm is propped against the bottom end of the buffer arm.
As a preferable scheme of the invention, an arc-extinguishing grid sheet is fixedly arranged between the first side plate and the second side plate, and the wiring end of the arc-extinguishing grid sheet is electrically connected with the conductive block through a wire.
As a preferable scheme of the invention, a closing and opening indication board is rotatably arranged on one side surface of the first side plate far away from the second side plate through a pin shaft, the closing and opening indication board is used for indicating that the circuit breaker is in a closing state and a separating brake opening state, a first pull rod is hinged to the closing and opening indication board, a movable arm is hinged to one end of the first pull rod far away from the closing and opening indication board, and one end of the movable arm far away from the first pull rod is fixedly sleeved at one end of the supporting shaft.
As a preferable scheme of the invention, an energy storage indication board is rotatably arranged on one side surface of the first side plate far away from the second side plate through a pin shaft, the energy storage indication board is used for indicating the energy storage state of the energy storage spring, a second pull rod is hinged on the energy storage indication board, one end of the second pull rod far away from the energy storage indication board is hinged on a shifting block, the upper end of the shifting block is rotatably arranged on one side surface of the first side plate far away from the second side plate through a pin shaft, and one side of the shifting block is propped against the energy storage crank arm.
As a preferable scheme of the invention, a micro switch is fixedly arranged on one side surface of the first side plate far away from the second side plate, the micro switch is connected with the energy storage motor in series, a movable contact of the micro switch is arranged close to one side of the shifting block, which is opposite to the energy storage crank arm, the energy storage crank arm can drive the shifting block to extrude the movable contact of the micro switch, and when the movable contact of the micro switch is extruded by the shifting block, the movable contact is in an off state, so that the energy storage motor is powered off, and when the energy storage motor is in a power-off state, the energy storage spring is in an energy storage state.
As a preferable scheme of the invention, a counter is fixedly arranged on one side surface of the first side plate far away from the second side plate, the input end of the counter is hinged with a third pull rod, and one end of the third pull rod far away from the counter is hinged on the shifting block.
The invention has the following beneficial effects:
The breaker spring operating mechanism mainly comprises a main frame and a breaker spring operating assembly, the main frame mainly comprises a first side plate and a second side plate, the breaker spring operating assembly is arranged on the main frame, and the breaker spring operating assembly mainly comprises an energy storage shaft, a hanging spring shaft, two energy storage springs, a transmission mechanism, a manual driving mechanism, an electric driving mechanism and a closing mechanism.
Drawings
Fig. 1 is a schematic structural view of a spring operating mechanism of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another view of a spring operating mechanism of a circuit breaker according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram II of another view angle of the spring operating mechanism of the circuit breaker according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a partial structure of a spring operating mechanism of a circuit breaker according to an embodiment of the present invention;
fig. 5 is a schematic diagram showing a partial structure of a spring operating mechanism of a circuit breaker according to an embodiment of the present invention;
Fig. 6 is a schematic diagram of a part of a circuit breaker spring operating mechanism according to an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of the structure shown at A in FIG. 6;
Fig. 8 is a schematic diagram showing a partial structure of a spring operating mechanism of a circuit breaker according to an embodiment of the present invention;
fig. 9 is a schematic diagram showing a partial structure of a spring operating mechanism of a circuit breaker according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a switch in a spring operating mechanism of a circuit breaker according to an embodiment of the present invention.
In the accompanying drawings:
1. a first side plate; 101. a second side plate; 102. a support block;
2. An energy storage shaft; 201. a hanging spring shaft; 202. an energy storage crank arm; 203. a spring seat; 204. a hanging spring seat; 205. an energy storage spring;
3. A transmission mechanism; 301. a large gear; 302. a clutch wheel; 303. a limit groove; 304. a limit screw; 305. a clutch pin; 306. a rotating rod; 307. a clutch pawl; 308. a cam; 309. a support shaft; 310. a fixed sleeve; 311. a closing holding pawl; 312. a connecting sheet; 313. a cylindrical briquette; 314. a connecting rod; 315. a mounting shaft; 316. a bending plate; 317. a buffer crank arm; 318. a fixing pin; 319. a buffer rod; 320. a buffer spring; 321. a buffer seat; 322. a torsion spring;
4. a closing mechanism; 401. a fixing frame; 402. a closing device; 4020. a lower terminal; 4021. a cylindrical insulating housing; 4022. a cylindrical electromagnet; 4023. an upper binding post; 4024. an upper annular groove; 4025. a conductive block; 4026. a conductive rod; 4027. a lower annular groove; 4028. a cylindrical permanent magnet; 4029. a return spring;
5. arc extinguishing grid plates;
6. Closing and opening indication board; 601. A first pull rod; 602. A movable arm;
7. An energy storage indication board; 701. A second pull rod;
8. A counter; 801. a third pull rod; 9. a shifting block; 10. a micro-switch;
11. an energy storage handle; 1101. a manual drive shaft; 1102. a manual drive gear;
12. An energy storage motor; 121. a drive gear; 122. a transmission shaft; 123. a driven gear; 124. a transmission gear;
13. and a fixing plate.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.
In the description of the present invention, unless explicitly stated and limited otherwise, the term "coupled" or the like should be interpreted broadly, as it may be fixedly coupled, detachably coupled, or integrally formed, as indicating the relationship of components; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two parts or interaction relationship between the two parts. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
The spring operating mechanism of the circuit breaker provided in this embodiment, as shown in fig. 1 to 10, includes: and a main frame and a breaker spring operating assembly.
The main frame comprises a first side plate 1 and a second side plate 101, wherein the first side plate 1 and the second side plate 101 are fixedly connected through a plurality of supporting blocks 102;
the breaker spring operating assembly is arranged on the main frame and comprises an energy storage shaft 2, a hanging spring shaft 201, two energy storage springs 205, a transmission mechanism 3, a manual driving mechanism, an electric driving mechanism and a closing mechanism 4.
The energy storage shafts 2 are rotatably mounted on the first side plate 1 and the second side plate 101 through bearings, the energy storage shafts 2 penetrate through the first side plate 1 and the second side plate 101 respectively, two ends of each energy storage shaft 2 are fixedly provided with an energy storage crank arm 202 respectively, the far end of each energy storage crank arm 202 is rotatably provided with a spring seat 203, the hanging spring shaft 201 is fixedly arranged through the first side plate 1 and the second side plate 101, two ends of the hanging spring shaft 201 are rotatably provided with a hanging spring seat 204 respectively, two energy storage springs 205 are fixedly mounted between the hanging spring seat 204 and the spring seat 203 on the same side respectively, the transmission mechanism 3 is sleeved on the energy storage shafts 2, the manual driving mechanism is mounted on the first side plate 1 and the second side plate 101 and used for driving the transmission mechanism 3 to drive the energy storage shafts 2 to rotate, and the electric driving mechanism is mounted on the first side plate 1 and the second side plate 101 and used for driving the transmission mechanism 3 to drive the energy storage shafts 2 to rotate;
the switching-on mechanism 4 is used for switching on and switching off the circuit breaker, and the manual driving mechanism and the electric driving mechanism are both used for driving the transmission mechanism 3 to drive the switching-on mechanism 4 to be switched on and switched off.
The breaker spring operating mechanism adopting the technical scheme mainly comprises a main frame and a breaker spring operating assembly, the main frame is mainly composed of a first side plate 1 and a second side plate 101, the breaker spring operating assembly is arranged on the main frame, the breaker spring operating assembly is mainly composed of an energy storage shaft 2, a hanging spring shaft 201, two energy storage springs 205, a transmission mechanism 3, a manual driving mechanism, an electric driving mechanism and a closing mechanism 4, the breaker spring operating mechanism is provided with manual and electric operation modes, the operation of the electric driving mechanism is conveniently controlled remotely by the prior art, the purpose of remote control is achieved, and the breaker spring operating mechanism is good in practicability.
Specifically, in this embodiment, the transmission mechanism 3 includes a large gear 301, a clutch wheel 302, a clutch pawl 307, a clutch pin 305, a limit screw 304, two cams 308, a support shaft 309, two fixing sleeves 310, a mounting shaft 315 and two bending plates 316, the large gear 301 is rotatably sleeved on the energy storage shaft 2 through a bearing, the clutch wheel 302 is fixedly sleeved on the energy storage shaft 2, the clutch wheel 302 is disposed near the large gear 301, a limit groove 303 is formed on a wheel surface of the clutch wheel 302, the clutch pawl 307 is rotatably mounted on a side surface of the large gear 301 facing the clutch wheel 302 through a rotating rod 306, one end of the clutch pawl 307 can be clamped into the limit groove 303, the clutch pin 305 is fixedly mounted on an inner side wall of the first side plate 1, the limit screw 304 is fixedly screwed on a side surface of the large gear 301 facing the clutch wheel 302, the other end of the clutch pawl 307 movably stretches into between the limit screw 304 and the clutch pin 305, the two cams 308 are fixedly sleeved on the energy storage shaft 2, a cylindrical pressing block 313 is rotatably arranged on the two cams 308, the supporting shaft 309 is rotatably arranged between the first side plate 1 and the second side plate 101, the two fixing sleeves 310 are fixedly sleeved on the supporting shaft 309, a closing holding pawl 311 and a connecting sheet 312 are fixedly arranged on each fixing sleeve 310, an included angle between the closing holding pawl 311 and the connecting sheet 312 on each fixing sleeve 310 is 110-130 degrees, the distal end of the closing holding pawl 311 is abutted against the cylindrical surface of the cylindrical pressing block 313, two torsion springs 322 matched with the fixing sleeves 310 are sleeved on the supporting shaft 309, one torsion arm of the torsion springs 322 is clamped on the row of the closing holding pawl 311, the other torsion arm of the torsion springs 322 is abutted against the fixing plate 13, the torsion springs 322 are used for controlling the distal end of the closing holding pawl 311 to be always abutted against the cylindrical surface of the cylindrical pressing block 313, the fixed plate 13 is fixedly arranged between the first side plate 1 and the second side plate 101, one end of the connecting sheet 312, which is far away from the fixed sleeve 310, is hinged with a connecting rod 314, the installation shaft 315 is fixedly arranged between the first side plate 1 and the second side plate 101, the two bent plates 316 are both rotatably sleeved on the installation shaft 315, the bottom ends of the bent plates 316 at corresponding positions are hinged with one end of the connecting rod 314, which is far away from the connecting sheet 312, and the upper ends of the bent plates 316 are abutted against the closing mechanism 4, so that the large gear 301 can only drive the energy storage shaft 2 to rotate anticlockwise under the mutual cooperation of the clutch wheel 302, the limit groove 303, the clutch pawl 307, the clutch pin 305 and the limit screw 304, and the energy storage shaft 2 can be prevented from driving the large gear 301 to rotate clockwise when the energy storage spring 205 releases energy;
Specifically, in this embodiment, the manual driving mechanism includes a manual driving shaft 1101, an energy storage handle 11 and a manual driving gear 1102, the manual driving shaft 1101 is rotatably mounted on the second side plate 101, the energy storage handle 11 is fixedly mounted at one end of the manual driving shaft 1101, the manual driving gear 1102 is fixedly sleeved on the manual driving shaft 1101, and the manual driving gear 1102 is meshed with the large gear 301, the manual driving shaft 1101 is driven to rotate by rotating the energy storage handle 11 clockwise, the manual driving shaft 1101 drives the manual driving gear 1102 to rotate clockwise, and the large gear 301 is driven to rotate counterclockwise by the manual driving gear 1102.
Specifically, in this embodiment, the electric driving mechanism includes the energy storage motor 12, the driving gear 121, the transmission shaft 122, the driven gear 123 and the transmission gear 124, the energy storage motor 12 is fixedly installed on the first side plate 1, the driving gear 121 is fixedly installed on the output shaft of the energy storage motor 12, the transmission shaft 122 is rotatably installed on the first side plate 1 and the second side plate 101, the driven gear 123 and the transmission gear 124 are fixedly sleeved on the transmission shaft 122, the driven gear 123 is meshed with the driving gear 121, the transmission gear 124 is meshed with the large gear 301, the energy storage motor 12 is used for driving the driving gear 121 to rotate anticlockwise, the driving gear 121 drives the driven gear 123 to rotate clockwise, the driven gear 123 drives the transmission shaft 122 and the transmission gear 124 to rotate clockwise, and the transmission gear 124 drives the large gear 301 to rotate anticlockwise.
Specifically, in this embodiment, the switching mechanism 4 includes a fixing frame 401 and two switching devices 402, the fixing frame 401 is fixedly installed between the first side plate 1 and the second side plate 101, the two switching devices 402 are arranged side by side and are fixedly installed on the fixing frame 401, and the positions of the two switching devices 402 are respectively corresponding to the upper ends of the two bending plates 316, each switching device 402 includes a cylindrical insulating housing 4021, a cylindrical electromagnet 4022, an upper terminal 4023, a conductive block 4025, a cylindrical permanent magnet 4028, a lower terminal 4020, a conductive rod 4026 and a return spring 4029, the cylindrical insulating housing 4021 is fixedly installed on the fixing frame 401, the cylindrical electromagnet 4022 is fixedly installed inside the cylindrical insulating housing 4021, the cylindrical electromagnet 4022 can also adopt the upper terminal 4023 to supply power, a transformer is arranged between the cylindrical electromagnet 4022 and the upper terminal 4023 when the upper terminal 4023 is adopted to ensure that the cylindrical electromagnet 4022 can obtain required working voltage, the cylindrical electromagnet 2 is arranged near the upper end of the cylindrical insulating housing 4021, the upper terminal 4023 is fixedly installed on the cylindrical terminal 4021, the cylindrical terminal 4023 is fixedly installed on the upper end wall of the cylindrical insulating housing 4021, the cylindrical electromagnet 4022 is installed near the cylindrical terminal 4028, the cylindrical permanent magnet 4022 is installed near the cylindrical end wall 5 and is installed near the cylindrical end-bottom of the cylindrical housing 5, the cylindrical electromagnet 4028 is installed near the cylindrical terminal 4028, the cylindrical electromagnet 4 is installed near the cylindrical end-to the cylindrical end-bar 4022, the cylindrical electromagnet 4 is installed near the cylindrical end-by the cylindrical electromagnet 5, the cylindrical electromagnet 4 is installed near the cylindrical terminal 4022, the cylindrical end-8, the cylindrical electromagnet 4 is axially fixed near the cylindrical end-by the cylindrical end-8, and is connected with the cylindrical end-shaped electric-cover 4, the conductive rod 4026 is fixedly arranged at the center position of one end face of the cylindrical permanent magnet 4028, which faces the cylindrical electromagnet 4022, one end, far away from the cylindrical permanent magnet 4028, of the conductive rod 4026 can be in contact with the conductive block 4025, the conductive rod 4026 is electrically connected with the lower binding post 4020, the reset spring 4029 is arranged between the lower annular groove 4027 and the upper annular groove 4024, and the reset spring 4029 is sleeved on the periphery of the conductive rod 4026;
Specifically, in this embodiment, when the bottom end of the lower terminal 4020 is set against the upper end of the bent plate 316, and the electric driving mechanism or the manual driving mechanism drives the large gear 301 to drive the energy storage shaft 2 to rotate anticlockwise, the energy storage shaft 2 drives the energy storage crank arm 202 to drive the energy storage spring 205 to extend and store energy, meanwhile, the energy storage shaft 2 drives the cam 308 to rotate anticlockwise, the cam 308 rotates anticlockwise to drive the cylindrical pressing block 313 to press the brake holding pawl 311, the brake holding pawl 311 drives the connecting piece 312 to move through the fixing sleeve 310, the connecting piece 312 drives the bent plate 316 to rotate clockwise around the mounting shaft 315 through the connecting rod 314, the upper end of the bent plate 316 pushes the bottom end of the lower terminal 4020 to move upwards, the lower terminal 4020 drives the cylindrical permanent magnet 4028 to move upwards, and the cylindrical permanent magnet 4028 drives the conductive rod 4026 to move upwards and overcomes the resistance of the reset spring 4029 to contact and conduct with the conductive block 4025;
When the current passing through the upper binding post 4023 exceeds a set value due to load or short circuit, the magnetic force of the cylindrical electromagnet 4022 is increased, the cylindrical permanent magnet 4028 is driven to move away from the cylindrical electromagnet 4022 by utilizing the effect that like magnetic poles repel each other, the cylindrical permanent magnet 4028 drives the conductive rod 4026 to be separated from the conductive block 4025 so that the circuit breaker is disconnected, meanwhile, the cylindrical permanent magnet 4028 drives the lower binding post 4020 to move downwards, the lower binding post 4020 pushes the bent plate 316 to rotate anticlockwise around the mounting shaft 315, the bent plate 316 reversely pushes the connecting rod 314 to drive the connecting piece 312 to move, the connecting piece 312 drives the closing holding pawl 311 to lift the cylindrical pressing block 313 upwards through the fixing sleeve 310, the cylindrical pressing block 313 drives the cam 308 to drive the energy storage shaft 2 to rotate clockwise, the energy storage spring 205 is excited to release energy when the energy storage shaft 2 rotates clockwise, and the circuit breaker can be kept disconnected after the energy is released by shortening.
Specifically, in this embodiment, a buffer mechanism is further provided, the buffer mechanism is used for slowing down the impact force generated when the bent plate 316 moves when the circuit breaker is disconnected, the buffer mechanism includes a buffer seat 321, a buffer rod 319, a fixing pin 318, a buffer crank 317 and a buffer spring 320, the buffer seat 321 is fixedly installed on a side wall of the first side plate 1 facing the second side plate 101, the buffer rod 319 is fixedly installed at one end of the buffer seat 321 facing the bent plate 316, the fixing pin 318 is fixedly installed on a side wall of the first side plate 1 facing the second side plate 101, the middle part of the buffer crank 317 is hinged on the fixing pin 318, a through groove is formed in the bottom end of the buffer crank 317, the upper end of the buffer crank 317 abuts against the bottom end of the bent plate 316, the buffer rod 319 movably penetrates through the through groove in the bottom end of the buffer crank 317, one end of the buffer rod 319 far away from the buffer seat 321 is provided with a hook, the buffer spring 320 is used for preventing the buffer rod 319 from separating from the through groove in the bottom end of the buffer crank 317, the buffer spring 320 abuts against one end of the buffer seat 321 and the bottom end of the buffer crank 317, the buffer spring 320 is tightly located between the buffer seat 321 and the bottom end of the buffer crank 317, when the bottom end of the buffer crank 317 is disconnected, the bottom end of the buffer crank 317 can be moved by the buffer crank 316, the buffer crank 316 can be pressed by the buffer crank 316, and the impact force can be reduced when the buffer crank 316 moves.
In order to eliminate the arc generated when the conductive rod 4026 is separated from the conductive block 4025 as soon as possible, so as to ensure safety, an arc extinguishing grid 5 is fixedly installed between the first side plate 1 and the second side plate 101, and the terminal of the arc extinguishing grid 5 is electrically connected with the conductive block 4025 through a wire, so that the arc generated when the conductive rod 4026 is separated from the conductive block 4025 can be led into the arc extinguishing grid 5 by using the wire to be eliminated, so that safety is ensured.
Specifically, in this embodiment, in order to facilitate understanding of the working state of the circuit breaker, the on-off indication board 6 is installed on a side surface of the first side board 1 far away from the second side board 101 through the rotation of the pin shaft, the set on-off indication board 6 is used for indicating that the circuit breaker is in the on-off state and the off-off state, the first pull rod 601 is hinged to the on-off indication board 6, the movable arm 602 is hinged to one end of the first pull rod 601 far away from the on-off indication board 6, one end of the movable arm 602 far away from the first pull rod 601 is fixedly sleeved at one end of the support shaft 309, and the support shaft 309 can drive the on-off indication board 6 to rotate through the first pull rod 601 when rotating, so that the purpose that the circuit breaker is in the on-off state and the off-off state is indicated by the on-off indication board 6 is achieved.
Specifically, in this embodiment, in order to facilitate understanding of the energy storage state of the energy storage spring 205, the energy storage indication board 7 is rotatably installed on a side surface of the first side board 1 far away from the second side board 101 through the pin shaft, the set energy storage indication board 7 is used for indicating the energy storage state of the energy storage spring 205, the second pull rod 701 is hinged on the energy storage indication board 7, one end of the second pull rod 701 far away from the energy storage indication board 7 is hinged on the pulling block 9, the upper end of the pulling block 9 is rotatably installed on a side surface of the first side board 1 far away from the second side board 101 through the pin shaft, one side of the pulling block 9 is propped against the energy storage crank arm 202, the set energy storage crank arm 202 is used for driving the pulling block 9 to drive the second pull rod 701 to act, and the second pull rod 701 is used for driving the energy storage indication board 7 to act, so as to achieve the purpose of indicating the energy storage state of the energy storage spring 205.
Specifically, in this embodiment, in order to ensure that the energy storage motor 12 can accurately drive the energy storage spring 205 to enter an energy storage state, the micro switch 10 is fixedly installed on a side surface of the first side plate 1 far away from the second side plate 101, the micro switch 10 is connected with the energy storage motor 12 in series, a movable contact of the micro switch 10 is close to one side of the shifting block 9, which is opposite to the energy storage crank arm 202, the set energy storage crank arm 202 can drive the shifting block 9 to squeeze the movable contact of the micro switch 10, when the movable contact of the micro switch 10 is squeezed by the shifting block 9, the movable contact is in an off state, so that the energy storage motor 12 is powered off, and when the energy storage motor 12 is in a power-off state, the energy storage spring 205 is in an energy storage state, so that the energy storage motor 12 can accurately drive the energy storage spring 205 to enter the energy storage state.
Specifically, in this embodiment, in order to record the switching-on or switching-off times of the circuit breaker conveniently, a counter 8 is fixedly installed on a side surface of the first side plate 1 far away from the second side plate 101, a third pull rod 801 is hinged to an input end of the counter 8, one end of the third pull rod 801 far away from the counter 8 is hinged to a shifting block 9, the shifting block 9 is driven to move by using an energy storage crank arm 202 to drive the third pull rod 801 to drive the input end of the counter 8 to act, when the input end of the counter 8 acts, counting can be performed, and each time the third pull rod 801 acts once, the counter 8 counts one number, so that the purpose of recording the switching-on or switching-off times of the circuit breaker can be achieved.
To sum up, the breaker spring operating mechanism provided in this embodiment has the following advantages:
The breaker spring operating mechanism mainly comprises a main frame and a breaker spring operating assembly, the main frame mainly comprises a first side plate 1 and a second side plate 101, the breaker spring operating assembly is arranged on the main frame, the breaker spring operating assembly mainly comprises an energy storage shaft 2, a hanging spring shaft 201, two energy storage springs 205, a transmission mechanism 3, a manual driving mechanism, an electric driving mechanism and a closing mechanism 4, the breaker spring operating mechanism is provided with manual and electric operation modes, the remote control of the action of the electric driving mechanism in the prior art is convenient, the remote control is realized, and the breaker spring operating mechanism has good practicability.
When the energy storage handle 11 is rotated clockwise to drive the manual driving shaft 1101 to rotate, the manual driving shaft 1101 drives the manual driving gear 1102 to rotate clockwise, and the manual driving gear 1102 drives the large gear 301 to rotate anticlockwise;
Or the energy storage motor 12 drives the driving gear 121 to rotate anticlockwise, the driving gear 121 drives the driven gear 123 to rotate clockwise, the driven gear 123 drives the transmission shaft 122 and the transmission gear 124 to rotate clockwise, and the transmission gear 124 drives the large gear 301 to rotate anticlockwise;
When the large gear 301 rotates anticlockwise to drive the energy storage shaft 2 to rotate anticlockwise, the energy storage shaft 2 drives the energy storage crank arm 202 to drive the energy storage spring 205 to extend and store energy, meanwhile, the energy storage shaft 2 drives the cam 308 to rotate anticlockwise, the cam 308 rotates anticlockwise to drive the cylindrical pressing block 313 to press the brake holding pawl 311, the brake holding pawl 311 drives the connecting piece 312 to move through the fixing sleeve 310, the connecting piece 312 drives the bent plate 316 to rotate clockwise around the mounting shaft 315 through the connecting rod 314, the upper end of the bent plate 316 pushes the bottom end of the lower binding post 4020 to move upwards, the lower binding post 4020 drives the cylindrical permanent magnet 4028 to move upwards, and the cylindrical permanent magnet 4028 drives the conductive rod 4026 to move upwards and overcomes the resistance of the reset spring 4029 to be in contact conduction with the conductive block 4025;
When the current passing through the upper binding post 4023 exceeds a set value due to load or short circuit, the magnetic force of the cylindrical electromagnet 4022 is increased, the cylindrical permanent magnet 4028 is driven to move away from the cylindrical electromagnet 4022 by utilizing the effect that like magnetic poles repel each other, the cylindrical permanent magnet 4028 drives the conductive rod 4026 to be separated from the conductive block 4025 so that the circuit breaker is disconnected, meanwhile, the cylindrical permanent magnet 4028 drives the lower binding post 4020 to move downwards, the lower binding post 4020 pushes the bent plate 316 to rotate anticlockwise around the mounting shaft 315, the bent plate 316 reversely pushes the connecting rod 314 to drive the connecting piece 312 to move, the connecting piece 312 drives the closing holding pawl 311 to lift the cylindrical pressing block 313 upwards through the fixing sleeve 310, the cylindrical pressing block 313 drives the cam 308 to drive the energy storage shaft 2 to rotate clockwise, the energy storage spring 205 is excited to release energy when the energy storage shaft 2 rotates clockwise, and the circuit breaker can be kept disconnected after the energy is released by shortening.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (8)
1. A circuit breaker spring operated mechanism, comprising:
The main frame comprises a first side plate (1) and a second side plate (101), wherein the first side plate (1) and the second side plate (101) are fixedly connected through a plurality of supporting blocks (102);
The circuit breaker spring operating assembly is arranged on the main frame, and comprises an energy storage shaft (2), a hanging spring shaft (201), two energy storage springs (205), a transmission mechanism (3), a manual driving mechanism, an electric driving mechanism and a closing mechanism (4), wherein:
the energy storage shafts (2) are rotatably mounted on the first side plate (1) and the second side plate (101) through bearings, the energy storage shafts (2) penetrate through the first side plate (1) and the second side plate (101) respectively, two ends of each energy storage shaft (2) are fixedly provided with an energy storage crank arm (202), the far end of each energy storage crank arm (202) is rotatably provided with a spring seat (203), the hanging spring shafts (201) penetrate through the first side plate (1) and the second side plate (101) fixedly, two ends of each hanging spring shaft (201) are rotatably provided with a hanging spring seat (204) respectively, two energy storage springs (205) are fixedly mounted between the hanging spring seat (204) and the spring seat (203) on the same side respectively, the transmission mechanism (3) is sleeved on the energy storage shafts (2), the manual driving mechanism is mounted on the first side plate (1) and the second side plate (101) and is used for driving the energy storage mechanism (3) to rotate, and the transmission mechanism (3) is used for driving the energy storage mechanism (101) to rotate on the first side plate (101);
The switching-on mechanism (4) is used for switching on and off the circuit breaker, and the manual driving mechanism and the electric driving mechanism are both used for driving the transmission mechanism (3) to drive the switching-on mechanism (4) to be switched on and off.
2. The circuit breaker spring operating mechanism according to claim 1, wherein the transmission mechanism (3) comprises a large gear (301), a clutch wheel (302), a clutch pawl (307), a clutch pin (305), a limit screw (304), two cams (308), a support shaft (309), two fixing sleeves (310), a mounting shaft (315) and two bent plates (316), the large gear (301) is rotatably sleeved on the energy storage shaft (2) through a bearing, the clutch wheel (302) is fixedly sleeved on the energy storage shaft (2), the clutch wheel (302) is arranged close to the large gear (301), a limit groove (303) is formed in a wheel surface of the clutch wheel (302), the clutch pawl (307) is rotatably mounted on one side surface of the large gear (301) towards the clutch wheel (302) through a rotating rod (306), one end of the clutch pawl (307) can be clamped into the limit groove (303), the clutch pin (305) is fixedly mounted on the inner side wall (1), the clutch pin (304) is fixedly mounted on the inner side wall (1), the clutch pin (307) is fixedly connected with the other end (307) of the clutch pin (301) towards the other end (301) of the clutch screw (301), the two cams (308) are fixedly sleeved on the energy storage shaft (2), a cylindrical pressing block (313) is rotatably arranged on each of the two cams (308), the support shaft (309) is rotatably arranged between the first side plate (1) and the second side plate (101), the two fixing sleeves (310) are fixedly sleeved on the support shaft (309), a closing holding pawl (311) and a connecting sheet (312) are fixedly arranged on each fixing sleeve (310), an included angle between the closing holding pawl (311) on each fixing sleeve (310) and the connecting sheet (312) is 110-130 degrees, the distal end of the closing holding pawl (311) abuts against the cylindrical surface of the cylindrical pressing block (313), two torsion springs (322) matched with the fixing sleeves (310) are sleeved on the support shaft (309), one torsion arm (322) is clamped on the closing holding pawl (311), the other torsion spring (322) abuts against the cylindrical surface of the first side plate (13) and the other torsion spring (322) is always fixed against the cylindrical surface of the second side plate (13), one end of the connecting sheet (312) far away from the fixed sleeve (310) is hinged with a connecting rod (314), the mounting shaft (315) is fixedly arranged between the first side plate (1) and the second side plate (101), the two bent plates (316) are both sleeved on the mounting shaft (315) in a rotating mode, the bottom end of the corresponding bent plate (316) and one end of the connecting rod (314) far away from the connecting sheet (312) are hinged, the upper end of the bent plate (316) is abutted against the closing mechanism (4), and the large gear (301) can only be driven by the large gear (301) to rotate anticlockwise under the mutual cooperation of the clutch wheel (302), the limiting groove (303), the clutch detent (307) and the limiting screw (304), so that the large gear (301) can be prevented from being driven by the energy storage shaft (2) to rotate clockwise when energy is released by the energy storage spring (205);
The manual driving mechanism comprises a manual driving shaft (1101), an energy storage handle (11) and a manual driving gear (1102), wherein the manual driving shaft (1101) is rotatably installed on the second side plate (101), the energy storage handle (11) is fixedly installed at one end of the manual driving shaft (1101), the manual driving gear (1102) is fixedly sleeved on the manual driving shaft (1101), and the manual driving gear (1102) is meshed with the large gear (301);
The electric driving mechanism comprises an energy storage motor (12), a driving gear (121), a transmission shaft (122), a driven gear (123) and a transmission gear (124), wherein the energy storage motor (12) is fixedly installed on the first side plate (1), the driving gear (121) is fixedly installed on an output shaft of the energy storage motor (12), the transmission shaft (122) is rotatably installed on the first side plate (1) and the second side plate (101), the driven gear (123) and the transmission gear (124) are fixedly sleeved on the transmission shaft (122), the driven gear (123) is meshed with the driving gear (121), and the transmission gear (124) is meshed with the large gear (301);
The switching-on mechanism (4) comprises a fixing frame (401) and two switching-on devices (402), the fixing frame (401) is fixedly arranged between the first side plate (1) and the second side plate (101), the two switching-on devices (402) are arranged side by side and fixedly arranged on the fixing frame (401), the positions of the two switching-on devices (402) are respectively corresponding to the upper ends of the two bending plates (316), each switching-on device (402) comprises a cylindrical insulating shell (4021), a cylindrical electromagnet (4022), an upper binding post (4023), a conductive block (4025), a cylindrical permanent magnet (4028), a lower binding post (4020), a conductive rod (4026) and a return spring (4029), the cylindrical insulating shell (4021) is fixedly arranged on the fixing frame (401), the cylindrical electromagnet (4022) is fixedly arranged inside the cylindrical insulating shell (4021), the cylindrical electromagnet (4022) is arranged close to the upper end of the cylindrical insulating shell (4021), the upper binding post (4023) is fixedly arranged on the cylindrical insulating shell (4023) and is fixedly arranged on the conductive block (4025) and is fixedly connected with the bottom part (4025), an upper annular groove (4024) is circumferentially formed in the junction of the conductive block (4025) and the cylindrical electromagnet (4022), the cylindrical permanent magnet (4028) is slidably mounted in the cylindrical insulating housing (4021), the magnetic poles of the cylindrical permanent magnet (4028) and the magnetic poles of the cylindrical electromagnet (4022) close to each other are the same, a lower annular groove (4027) is formed in one end face of the cylindrical permanent magnet (4028) facing the cylindrical electromagnet (4022), a lower binding post (4020) is movably mounted on the bottom end wall of the cylindrical insulating housing (4021), a conductive rod (4026) is fixedly mounted at the center position of one end face of the cylindrical permanent magnet (4028) facing the cylindrical electromagnet (4022), one end, far away from the cylindrical permanent magnet (4028), of the conductive rod (4026) can be in contact with the conductive block (4025), the conductive rod (4026) is electrically connected with the lower binding post (4020), a reset spring (4029) is mounted between the lower binding post (4027) and the annular groove (4024), and the reset spring (4029) is arranged outside the annular groove (4026);
When the bottom end of the lower binding post (4020) is propped against the upper end of the bent plate (316), the electric driving mechanism or the manual driving mechanism drives the large gear (301) to drive the energy storage shaft (2) to rotate anticlockwise, the energy storage shaft (2) drives the energy storage crank arm (202) to drive the energy storage spring (205) to extend and store energy, meanwhile, the energy storage shaft (2) drives the cam (308) to rotate anticlockwise, the cam (308) rotates anticlockwise to drive the cylindrical pressing block (313) to press the closing holding pawl (311), the closing holding pawl (311) drives the connecting sheet (312) to move through the fixing sleeve (310), the connecting sheet (312) drives the bent plate (316) to rotate clockwise around the mounting shaft (315) through the connecting rod (314), the upper end of the bent plate (316) pushes the bottom end of the lower binding post (4020) to move upwards, the lower permanent magnet (4028) is driven to move upwards, and the cylindrical permanent magnet (4028) drives the reset rod (4028) to move upwards and overcomes the resistance force of the reset rod (4025);
When the current passing through the upper binding post (4023) exceeds a set value due to load or short circuit, the magnetic force of the cylindrical electromagnet (4022) is increased, the cylindrical permanent magnet (4028) is driven to move away from the cylindrical electromagnet (4022) by utilizing the effect that the same-name magnetic poles repel each other, the cylindrical permanent magnet (4028) drives the conductive rod (4026) to be separated from the conductive block (4025) so as to enable the circuit breaker to be disconnected, meanwhile, the cylindrical permanent magnet (4028) drives the lower binding post (4020) to move downwards, the lower binding post (4020) pushes the bent plate (316) to rotate anticlockwise around the mounting shaft (315), so that the bent plate (316) reversely pushes the connecting rod (314) to drive the connecting piece (312) to move, the connecting piece (312) drives the switch-on retaining sleeve (311) to lift the cylindrical pressing block (313) upwards, the cylindrical pressing block (313) drives the cam (308) to drive the energy storage shaft (2) to rotate clockwise, and when the energy storage shaft (205) rotates clockwise, the energy storage spring (205) can release energy storage energy after the energy storage spring (205) is excited to rotate clockwise, and the energy storage energy can be released.
3. The circuit breaker spring operator according to claim 2, further comprising a buffer mechanism for dampening impact forces generated when the bent plate (316) moves when the circuit breaker is opened, the buffer mechanism comprising a buffer seat (321), a buffer rod (319), a fixing pin (318), a buffer lever (317) and a buffer spring (320), the buffer seat (321) being fixedly mounted on a side wall of the first side plate (1) facing the second side plate (101), the buffer rod (319) being fixedly mounted on an end of the buffer seat (321) facing the bent plate (316), the fixing pin (318) being fixedly mounted on a side wall of the first side plate (1) facing the second side plate (101), a middle part of the buffer lever (317) being hinged on the fixing pin (318), and a bottom end of the buffer lever (317) being provided with a through slot, an upper end of the buffer lever (317) being abutted against a bottom end 319 of the bent plate (316), the buffer lever (319) being fixedly mounted on a side wall of the first side plate (1) facing the second side plate (101), the buffer lever (317) being provided with a bottom end of the buffer lever (317) facing away from the buffer lever (320), and the buffer spring (320) is abutted against the space between the buffer seat (321) and the bottom end of the buffer crank arm (317).
4. The circuit breaker spring operating mechanism according to claim 2, wherein an arc extinguishing gate (5) is fixedly installed between the first side plate (1) and the second side plate (101), and a terminal of the arc extinguishing gate (5) is electrically connected with the conductive block (4025) through a wire.
5. The circuit breaker spring operating mechanism according to claim 2, wherein the first side plate (1) is far away from a side surface of the second side plate (101), a closing and opening indication board (6) is rotatably installed on the side surface of the second side plate through a pin shaft, the closing and opening indication board (6) is used for indicating that the circuit breaker is in a closing state and a breaking state, a first pull rod (601) is hinged on the closing and opening indication board (6), a movable arm (602) is hinged at one end of the first pull rod (601) far away from the closing and opening indication board (6), and one end of the movable arm (602) far away from the first pull rod (601) is fixedly sleeved at one end of the supporting shaft (309).
6. The circuit breaker spring operating mechanism according to claim 1, wherein an energy storage indication board (7) is rotatably installed on a side surface of the first side board (1) away from the second side board (101) through a pin shaft, the energy storage indication board (7) is used for indicating an energy storage state of the energy storage spring (205), a second pull rod (701) is hinged on the energy storage indication board (7), one end of the second pull rod (701) away from the energy storage indication board (7) is hinged on a shifting block (9), the upper end of the shifting block (9) is rotatably installed on a side surface of the first side board (1) away from the second side board (101) through a pin shaft, and one side of the shifting block (9) is abutted against the energy storage crank arm (202).
7. The circuit breaker spring operating mechanism according to claim 6, characterized in that a micro switch (10) is fixedly installed on a side surface of the first side plate (1) away from the second side plate (101), the micro switch (10) is connected with the energy storage motor (12) in series, a movable contact of the micro switch (10) is arranged close to one side of the shifting block (9) away from the energy storage crank arm (202), the energy storage crank arm (202) can drive the shifting block (9) to squeeze the movable contact of the micro switch (10), and the movable contact of the micro switch (10) is in an off state when being squeezed by the shifting block (9), so that the energy storage motor (12) is powered off, and the energy storage spring (205) is in an energy storage state when the energy storage motor (12) is in a power-off state.
8. The circuit breaker spring operating mechanism according to claim 6, wherein a counter (8) is fixedly mounted on a side surface of the first side plate (1) away from the second side plate (101), an input end of the counter (8) is hinged with a third pull rod (801), and one end of the third pull rod (801) away from the counter (8) is hinged on the shifting block (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410322851.1A CN117995618B (en) | 2024-03-21 | 2024-03-21 | Spring operating mechanism of circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410322851.1A CN117995618B (en) | 2024-03-21 | 2024-03-21 | Spring operating mechanism of circuit breaker |
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| CN117995618B CN117995618B (en) | 2024-09-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119092376A (en) * | 2024-11-08 | 2024-12-06 | 贝司特电气有限公司 | A circuit breaker spring operating mechanism |
| CN119092375A (en) * | 2024-09-23 | 2024-12-06 | 南通常融电气技术有限公司 | A power circuit breaker box with elastic energy storage device |
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| CN220085865U (en) * | 2023-05-11 | 2023-11-24 | 许昌福润德电器有限公司 | Miniaturized spring operating mechanism of high-voltage alternating current circuit breaker |
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| CN119092375A (en) * | 2024-09-23 | 2024-12-06 | 南通常融电气技术有限公司 | A power circuit breaker box with elastic energy storage device |
| CN119092376A (en) * | 2024-11-08 | 2024-12-06 | 贝司特电气有限公司 | A circuit breaker spring operating mechanism |
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| CN117995618B (en) | 2024-09-17 |
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