CN107768155B - Circuit breaker operating mechanism - Google Patents
Circuit breaker operating mechanism Download PDFInfo
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- CN107768155B CN107768155B CN201711029186.3A CN201711029186A CN107768155B CN 107768155 B CN107768155 B CN 107768155B CN 201711029186 A CN201711029186 A CN 201711029186A CN 107768155 B CN107768155 B CN 107768155B
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- closing
- switching
- brake
- separating
- energy storage
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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
- H01H3/3005—Charging means
- H01H3/3026—Charging means in which the closing spring charges the opening spring or vice versa
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a circuit breaker operating mechanism which comprises a spring energy storage device, a switching-on device and a switching-off device, wherein the spring energy storage device is linked with the switching-on device, the switching-on device and the switching-off device share one output shaft and are connected to a circuit breaker, when switching-on operation is carried out, the spring energy storage is released to drive the output shaft to rotate towards the switching-on direction, meanwhile, the switching-off torsion spring is used for storing energy for switching-off, and when switching-off operation is carried out, the switching-off torsion spring is released to drive the output shaft to rotate towards the switching-off direction, so that switching-on operation. The circuit breaker operating mechanism has the advantages of reasonable structure, stable performance, low manufacturing cost and greatly prolonged service life.
Description
Technical Field
The invention relates to a circuit breaker operating mechanism of a switch cabinet.
Background
The circuit breaker is characterized in that when the contact of the circuit breaker is opened and closed, the circuit breaker can be opened and closed, and the opening and closing of the circuit breaker are realized through the operating mechanism.
For a switch cabinet, the existing circuit breaker operating mechanism has unstable performance, large occupied space and high manufacturing cost, so that the structure of the circuit breaker operating mechanism needs to be adjusted.
Disclosure of Invention
The invention aims to provide a circuit breaker operating mechanism which is reasonable in structure, stable in performance and long in service life.
The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides a circuit breaker operating mechanism, includes spring energy memory, closing device and separating brake device, spring energy memory and the linkage of closing device, closing device and separating brake device share an output shaft and are connected to the circuit breaker, and when carrying out the combined floodgate operation, the release of spring energy memory drives output shaft to closing direction and rotates, is the separating brake energy memory through the separating brake torsional spring simultaneously, and when carrying out the separating brake operation, the separating brake torsional spring release energy memory drives output shaft to separating brake direction and rotates to carry out the operation of combined floodgate and separating brake to the circuit breaker respectively.
Further, the spring energy storage device is installed on the mechanism board of the circuit breaker operating mechanism, be equipped with the installation pillar on the mechanism board, the spring energy storage device is including the combined floodgate extension spring that is used for the energy storage and the transmission pivot that provides energy storage power to the combined floodgate extension spring, the output of transmission pivot is connected with can be along with its synchronous pivoted energy storage cam, the free end of energy storage cam is equipped with the energy storage connecting rod, the one end of combined floodgate extension spring is rotationally connected on the installation pillar through the extension spring link plate, the other end rotationally connects on the energy storage connecting rod through the extension spring link plate, when the transmission pivot rotates under the power supply drives, drive the energy storage cam and rotate, thereby.
Furthermore, the spring energy storage device also comprises an energy storage maintaining device for positioning the energy storage of the closing tension spring, the energy storage maintaining device comprises a closing cam which is arranged on the transmission rotating shaft and can synchronously rotate along with the transmission rotating shaft, one side of the free end of the closing cam is provided with an energy storage maintaining roller, the energy storage maintaining device also comprises a closing pawl which is arranged in the same plane with the energy storage maintaining roller, the closing pawl is rotatably arranged on a pawl shaft, the pawl shaft is fixed on a mechanism plate, the closing pawl comprises an energy storage maintaining end, an energy storage releasing end and a switching stopping end, wherein the energy storage maintaining end is provided with a plane which can be contacted with the energy storage maintaining roller and keep the relative position unchanged, when the closing cam rotates to the energy storage position of the closing tension spring, the plane of the pawl abuts against the energy storage maintaining roller so that the closing tension spring is maintained at the energy storage position, when the closing tension spring is positioned at, the connecting line between the rotation central points of the two tension spring hanging plates and the connecting line between the rotation central point of the tension spring hanging plate connected with the mounting pillar and the rotation central point of the transmission rotating shaft have an included angle larger than 0 degree.
Further, the closing device comprises a closing push rod and a closing four-bar linkage, a closing switch is arranged on the mechanism plate, the tail end of the closing switch extends into the mechanism plate and is linked with the closing push rod, a pin is arranged on one side of the closing push rod, one end of a closing push plate is hung on the pin through a kidney-shaped hole, the other end of the closing push plate is linked with an energy storage release end of a closing pawl, when the closing push rod moves inwards under the pushing of the closing switch, the closing push plate is driven to move downwards through the linkage of the pin and the kidney-shaped hole, so that the energy storage release end of the closing pawl is pushed to apply thrust, the closing pawl rotates to leave the energy storage maintaining roller, after the energy storage maintaining roller is released by the closing pawl, the closing cam can continue to rotate under the action of a closing tension spring, the closing four-bar linkage comprises a closing crank arm, a closing connecting rod and a transmission output crank arm, the middle part of the closing crank arm, the free end of the switching-on connecting lever is provided with a switching-on linkage post, when the switching-on cam continues to rotate, one side of the free end of the switching-on connecting lever touches the switching-on linkage post, so that the switching-on connecting lever is driven to rotate, the other end of the switching-on connecting lever drives the transmission output connecting lever to rotate through the switching-on connecting rod, and the transmission output connecting lever is linked with an output shaft connected to the circuit breaker, so that the output shaft rotates towards the switching-on direction.
Further, the closing device still includes electronic combined floodgate part, electronic combined floodgate part includes the combined floodgate electro-magnet, be equipped with the combined floodgate pusher that can promote the branch of the sincere son of combined floodgate stop the shelves end on the combined floodgate electro-magnet, when the combined floodgate electro-magnet circular telegram, the branch of the sincere son of combined floodgate stop the shelves end, make the energy storage holding end of the sincere son of combined floodgate leave energy storage holding roller, thereby carry out combined floodgate operation, electronic combined floodgate part still includes the electronic spacing piece of closing a floodgate of installing on closing a floodgate push rod, when the combined floodgate electro-magnet circular telegra.
Further, the brake separating device comprises a brake separating torsion spring arranged on the output shaft, a brake separating output crank arm linked with the output shaft, a brake separating retaining wheel and a brake separating pawl, wherein the brake separating output crank arm is rotatably connected with the brake separating crank arm through a brake separating connecting rod, the brake separating crank arm and the brake separating crank arm share a crank arm shaft, the other end of the brake separating crank arm is provided with a brake separating linkage column, the brake separating device also comprises a brake separating retaining wheel and a brake separating pawl, the brake separating retaining wheel is an irregularly-shaped wheel arranged on the transmission rotating shaft, one end of the brake separating retaining wheel is matched with the brake separating pawl, the other end of the brake separating retaining wheel is provided with the brake separating retaining pawl matched with the brake separating linkage column, the brake separating pawl is rotatably arranged on the pawl shaft, the brake separating pawl comprises a brake separating retaining end, a brake separating power end and a brake separating pawl pin, when the output shaft is driven by the brake separating device to rotate to carry out the brake, the energy is stored by the brake separating torsion spring, the brake separating output crank, until the separating brake linkage column is supported by the separating brake holding pawl, one end of the separating brake holding wheel is supported by the separating brake holding end of the separating brake pawl, the separating brake device is in a separating brake energy storage state, the separating brake device further comprises a separating brake push rod, a separating brake conical surface which can be matched with the separating brake pawl pin of the pawl is arranged on the separating brake push rod, a separating brake switch is arranged on the mechanism plate, the tail end of the separating brake switch extends into the mechanism plate to be linked with the separating brake push rod, when the separating brake push rod moves inwards under the pushing of the separating brake switch, the separating brake conical surface pushes the separating brake pawl pin to enable the separating brake pawl to rotate in the direction of separating from the separating brake holding wheel, when the separating brake holding end of the separating brake pawl leaves one section of the separating brake holding wheel, the separating brake holding state is released, and the separating brake torsion spring releases energy storage to drive the output shaft to rotate in the separating brake direction.
Furthermore, the brake separating device further comprises an electric brake separating component, the electric brake separating component comprises a brake separating electromagnet, a brake separating pushing head capable of pushing the brake separating power end of the brake separating pawl is arranged on the brake separating electromagnet, and when the brake separating electromagnet is electrified, the brake separating pushing head pushes the brake separating power end of the brake separating pawl, so that the brake separating holding end of the brake separating pawl leaves the brake separating holding wheel, and brake separating operation is performed by releasing brake separating energy storage.
Further, the sincere son epaxial be equipped with be used for the sincere son torsional spring of closing a floodgate that restores to the throne of the sincere son of separating brake and be used for the sincere son torsional spring of separating brake that restores to the throne of separating brake, after the position that the closing cam rotated energy storage and kept the gyro wheel and interfered with the sincere son of closing a floodgate, the sincere son of closing a floodgate resets under the effect of the sincere son torsional spring of closing a floodgate, makes preparation for next time's energy storage, keeps the wheel to rotate its position that interferes with the sincere son of separating brake after the separating brake, and the sincere son.
And when the mechanism is in an opening and closing energy storage state, the opening and closing power end of the opening pawl is limited by the opening and closing stop lever.
Further, the circuit breaker operating mechanism further comprises an auxiliary switch device, the auxiliary switch device comprises an auxiliary switch connecting lever fixedly mounted on the output shaft, the free end of the auxiliary switch connecting lever is rotatably connected with an auxiliary switch connecting rod, the auxiliary switch connecting rod is rotatably connected with a rotating shaft of the micro-motion detection switch through the auxiliary switch linkage connecting lever, the rotating shaft of the micro-motion detection switch is fixedly mounted on the mechanism plate, and when the output shaft is driven by the closing device and the opening device to rotate towards the closing direction or the opening direction respectively, the micro-motion detection switch rotates along with the output shaft to detect the state of closing or opening.
The invention has the beneficial effects that: the linkage relation of spring energy storage, holding and releasing is skillfully utilized, energy can be stored for opening while closing, the structure of the circuit breaker operating mechanism is compact, the overall design and arrangement of the switch cabinet are facilitated, the internal parts of the circuit breaker operating mechanism are reasonably arranged, the structure is compact, the performance is stable, and the manufacturing cost is reduced due to the improvement of the structure. By adopting the circuit breaker operating mechanism, the service life can be prolonged to 3 to 8 thousands of times, and the effect of greatly prolonging the service life of a product is realized on the premise of reducing the production cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an exploded view of the overall structure of the present invention.
Fig. 3 is an isometric view of the spring energy storage device of the present invention.
Fig. 4 is a schematic diagram of the spring energy storage device of the present invention in a non-energy storage state.
Fig. 5 is a schematic diagram of the spring energy storage device of the present invention in an energy storage state.
Fig. 6 is a schematic diagram of a closing device of the present invention.
Fig. 7 is a structural diagram of a linkage relationship of a closing pawl in the closing device of the present invention.
Fig. 8 is a schematic diagram of the opening device of the invention in the opening energy storage state.
Fig. 9 is a structural view of the linkage relationship of the brake detent in the brake release device of the present invention.
Fig. 10 is an isometric view of the auxiliary switching device of the present invention.
Fig. 11 is a schematic diagram of the electrical configuration of the spring energy storage mechanism of the present invention.
Reference numbers in the figures: 1-spring energy storage device, 2-closing device, 3-opening device, 4-auxiliary switching device, 5-output shaft, 6-mechanism plate, 7-mounting support, 8-closing tension spring, 9-transmission rotating shaft, 10-energy storage cam, 11-energy storage connecting rod, 12-tension spring hanging plate, 13-closing cam, 14-energy storage maintaining roller, 15-closing latch, 16-latch shaft, 17-energy storage maintaining end, 18-energy storage releasing end, 19-opening and closing stop gear end, 20-closing push rod, 21-closing switch, 22-closing push plate, 23-pin, 24-kidney-shaped hole, 25-closing arm, 26-closing connecting rod, 27-transmission output crank arm, 28-crank arm shaft, 29-closing linkage column, 30-closing electromagnet, 31-closing pusher, 32-one-way buckle, 33-opening torsion spring, 34-opening output crank arm, 35-opening connecting rod, 36-opening crank arm, 37-opening linkage column, 38-opening retaining wheel, 39-opening pawl, 40-opening retaining pawl, 41-opening retaining end, 42-opening power end, 43-opening pawl pin, 44-opening push rod, 45-opening cone, 46-opening switch, 47-opening electromagnet, 48-push plate bracket, 49-opening pusher, 50-closing pawl torsion spring, 51-opening pawl torsion spring, 52-opening and closing stopping rod, 53-buffer pad, 54-buffer bracket, 55-motor, 56-one-way bearing, 57-cylindrical gear, 58-big gear, 59-auxiliary switch crank arm, 60-auxiliary switch connecting rod, 61-auxiliary switch linkage crank arm, 62-micro-motion detection switch and 63-push rod torsion spring.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The utility model provides a circuit breaker operating mechanism, including spring energy memory 1, closing device 2 and separating brake device 3, spring energy memory 1 links with closing device 2, an output shaft 5 of closing device 2 and separating brake device 3 sharing is connected to the circuit breaker, when carrying out the combined floodgate operation, spring energy storage release drives output shaft 5 and rotates to the combined floodgate direction, be the separating brake energy storage through the separating brake torsional spring simultaneously, when carrying out the separating brake operation, separating brake torsional spring release energy storage drives output shaft 5 and rotates to the separating brake direction to carry out the operation of combined floodgate and separating brake to the circuit breaker respectively.
As shown in fig. 3, spring energy storage device 1 is installed on mechanism plate 6 of circuit breaker operating mechanism, be equipped with installation pillar 7 on mechanism plate 6, spring energy storage device 1 is including closing tension spring 8 that is used for the energy storage and the transmission pivot 9 that provides energy storage power to closing tension spring 8, the output of transmission pivot 9 is connected with can be along with its synchronous pivoted energy storage cam 10, energy storage cam 10's free end is equipped with energy storage connecting rod 11, closing tension spring 8's one end is rotationally connected on installation pillar 7 through extension spring link plate 12, the other end is rotationally connected on energy storage connecting rod 11 through extension spring link plate 12, when transmission pivot 9 rotates under the power supply drives, drive energy storage cam 10 and rotate, thereby the energy storage is realized to the one end of pulling closing tension spring 8.
The spring energy storage device 1 further comprises an energy storage maintaining device for positioning the energy storage of the closing tension spring 8, the energy storage maintaining device comprises a closing cam 13 which is arranged on the transmission rotating shaft 9 and can synchronously rotate along with the transmission rotating shaft 9, one side of the free end of the closing cam 13 is provided with an energy storage maintaining roller 14, the energy storage maintaining device further comprises a closing pawl 15 which is arranged in the same plane with the energy storage maintaining roller 14, the closing pawl 15 is rotatably arranged on a pawl shaft 16, the pawl shaft 16 is fixed on the mechanism plate 6, the closing pawl 15 comprises an energy storage maintaining end 17, an energy storage releasing end 18 and a closing and stopping gear end 19, wherein the energy storage maintaining end 17 is provided with a plane which can be in contact with the energy storage maintaining roller 14 and keep the relative position unchanged, when the closing cam 13 rotates to the energy storage position of the closing tension spring 8, the plane of the closing pawl 15 is abutted against the energy storage maintaining roller 14 so as to keep the closing tension spring, when the closing tension spring 8 is in the energy storage position, an included angle larger than 0 degree is formed between a connecting line between the rotation central points of the two tension spring hanging plates 12 and a connecting line between the rotation central point of the tension spring hanging plate 12 connected with the mounting pillar 7 and the rotation central point of the transmission rotating shaft.
As shown in fig. 4, when the closing tension spring 8 is in the non-energy storage state, the energy storage connecting rod 11 on the energy storage cam 10 is located at the position where the closing tension spring 8 contracts, at this time, there is no energy stored in the closing tension spring 8, and the closing pawl 15 is in the non-restricted state, when performing the energy storage operation, the transmission rotating shaft 9 drives the energy storage cam 10 and the closing cam 13 to move in the direction a in fig. 4 synchronously under the action of the external force, so that the closing tension spring 8 extends in the direction B in fig. 4, as shown in fig. 5, when the energy storage cam 10 rotates to the maximum extension position of the closing tension spring 8, the energy storage maintaining roller 14 on which the closing cam 13 rotates abuts against the plane of the energy storage maintaining end 17 of the closing pawl 15, thereby forming a.
The closing device 2 comprises a closing push rod 20 and a closing four-bar linkage, a closing switch 21 is arranged on the mechanism plate 6, the tail end of the closing switch 21 extends into the mechanism plate 6 and is linked with the closing push rod 20, as shown in fig. 7, a pin 23 is arranged on one side of the closing push rod 20, one end of the closing push plate 22 is hung on the pin 23 through a kidney-shaped hole 24, the other end of the closing push plate 22 is linked with an energy storage release end 18 of a closing pawl 15, when the closing push rod 20 moves inwards under the push of the closing switch 21, the closing push plate 22 is driven to move downwards through the linkage of the pin 23 and the kidney-shaped hole 24, so that the energy storage release end 18 of the closing pawl 15 is pushed, the closing pawl 15 rotates in the direction B in fig. 6, leaves the energy storage maintaining roller 14, and after the energy storage maintaining roller 14 is released by the closing pawl 15, the closing cam 13 can continue to rotate in the direction C in fig. 6 under the action of the tension, the four closing connecting rods comprise a closing connecting lever 25, a closing connecting lever 26 and a transmission output connecting lever 27, the middle part of the closing connecting lever 25 is rotatably fixed on the mechanism board 6 through a connecting lever shaft 28, a closing linkage post 29 is arranged at the free end of the closing connecting lever 25, when the closing cam 13 continues to rotate along the direction C in the figure 6, one side (part with an inward concave smooth arc surface) of the free end of the closing connecting lever contacts the closing linkage post 29, so that the closing connecting lever 25 is driven to rotate along the direction D in the figure, the other end of the closing connecting lever 25 pushes the closing connecting lever 26 to move towards the direction E in the figure, the transmission output connecting lever 27 is driven to rotate along the direction G in the figure, and the transmission output connecting lever 27 is linked with the output shaft 5 connected to the circuit breaker, so that the output shaft 5 rotates towards the closing direction.
The closing device further comprises a one-way buckle 32, the one-way buckle 32 is installed on the closing push rod 20 through a pin and a push rod torsion spring 63, when the closing push rod 20 moves inwards under the action of the closing switch 21, the one-way buckle 32 firstly rotates along with the movement of the closing push rod 20, then after the closing push rod 20 completes closing operation, the one-way buckle 32 resets under the action of the push rod torsion spring 63 and pushes the closing push rod 20 to reset, and preparation is made for next closing operation.
The invention can also realize electric closing, as shown in fig. 6, specifically, an electric closing component is arranged on the mechanism plate 6, the electric closing component comprises a closing electromagnet 30, the closing electromagnet 30 is provided with a closing pushing head 31 capable of pushing the opening and closing stop end 19 of the closing pawl 15, when the closing electromagnet 30 is electrified, the closing pushing head 31 moves towards the direction F in fig. 6 to push the closing pawl 15 to rotate around the pawl shaft 16, the opening and closing stop end 19 moves towards the direction a in fig. 6, so that the energy storage holding end 17 of the closing pawl 15 moves towards the direction B in fig. 6 away from the energy storage holding roller 14, and then as mentioned above, the energy storage of the closing tension spring 8 is released, thereby realizing the closing operation.
As shown in fig. 8, the switching-off device 3 comprises a switching-off torsion spring 33 arranged on the output shaft 5 and a switching-off output crank 34 linked with the output shaft 5, the switching-off output crank 34 is rotatably connected with the switching-off crank 36 through a switching-off connecting rod 35, the switching-off crank 36 and the switching-on crank 25 share a crank shaft 28, the other end of the switching-off crank 36 is provided with a switching-off linkage column 37, the switching-off device 3 further comprises a switching-off holding wheel 38 and a switching-off detent 39, the switching-off holding wheel 38 is an irregularly-shaped wheel arranged on the transmission rotating shaft 9, one end of the irregularly-shaped wheel is matched with the switching-off detent 39, the other end of the irregularly-shaped wheel is provided with a switching-off holding detent 40 matched with the switching-off linkage column 37, the switching-off detent 39 is rotatably arranged on the detent shaft 16, the switching-off detent 39 comprises a switching-off holding end 41, a switching-off power end 42 and a switching-off detent pin 43, the switching-off detent pin 43 is rotatably arranged on the switching-off detent 39, the, while closing, the opening output crank 34 rotates with the output shaft 5 to drive the opening crank 36 to rotate around the crank shaft 28 through the opening link 35 until the opening linkage column 37 is abutted by the opening holding detent 40, at which time one end of the opening holding wheel 38 is abutted by the opening holding end 41 of the opening detent 39, the opening device 3 is in the opening energy storage state, as shown in fig. 10, the opening device 3 further includes an opening push rod 44, the opening push rod 44 is provided with an opening conical surface 45 capable of cooperating with the opening pin 43 of the opening detent 39, the mechanism plate 6 is provided with an opening switch 46, the end of the opening switch 46 extends into the mechanism plate 6 to cooperate with the opening push rod 44, when the opening push rod 44 moves inward under the push of the opening switch 46, the opening 45 cooperates with the rotating surface of the opening detent pin 43 to push the opening pin 43 to move in the a direction in fig. 8 so that the opening detent 39 disengages from the rotating surface of the opening wheel 38 (B direction in fig. 8) When the brake-separating holding end 41 of the brake-separating latch 39 leaves one end of the brake-separating holding wheel 38, the brake-separating holding state is released, the brake-separating torsion spring 33 releases the stored energy to drive the output shaft to rotate in the brake-separating direction, meanwhile, the brake-separating holding wheel 38 can rotate in the direction C in figure 8, the contact and the matching between the brake-separating holding latch 40 and the brake-separating linkage column 37 are released, the brake-separating crank arm 36 can rotate around the crank arm shaft in the direction D in figure 8, and when the brake-separating torsion spring 33 releases the stored energy, the four-link mechanism of the brake-separating swings along with the brake-separating holding latch to prepare for the next stored energy.
Similarly, the invention can also carry on the electronic brake-separating, the most key step of the brake-separating is to remove the limit of the brake-separating pawl 39 to the brake-separating retaining wheel 38, therefore only need to drive the brake-separating pawl 39, the power of the electronic brake-separating is provided by the electronic brake-separating part, the electronic brake-separating part includes the brake-separating electromagnet 47, the brake-separating electromagnet 47 is fixedly mounted on the mechanism board 6 through the push plate support 48, the brake-separating electromagnet 47 is equipped with the brake-separating push head 49 that can push the brake-separating power end 42 of the brake-separating pawl 39, when the brake-separating electromagnet 47 is powered on, the brake-separating push head 49 pushes the brake-separating power end 42 of the brake-separating pawl 39, make the brake-separating retaining end 41 of the brake-separating pawl 39 leave the brake-separating retaining wheel 38, thus release the brake-separating energy storage to carry on the brake.
The pawl shaft 16 is provided with a closing pawl torsion spring 50 for resetting the closing pawl 15 and an opening pawl torsion spring 51 for resetting the opening pawl 39, when the closing cam 13 rotates to a position where the energy storage maintaining roller 14 interferes with the closing pawl 15, the closing pawl 15 resets under the action of the closing pawl torsion spring 50 to prepare for next energy storage, and when the opening maintaining wheel 38 rotates to a position where the opening pawl 39 interferes with the opening pawl 38, the opening pawl 39 resets under the action of the opening pawl torsion spring 51 to prepare for next energy storage.
The mechanism plate 6 is also provided with a switching and stopping rod 52, the switching and stopping rod 52 is installed at the side of the pawl shaft 16, when the mechanism is in a spring energy storage state, the switching and stopping end 19 of the switching pawl 15 is limited by the switching and stopping rod 52, and when the mechanism is in a switching and energy storage state, the switching and stopping power end 42 of the switching pawl 39 is limited by the switching and stopping rod 52.
Because the closing connecting lever 25 and the opening connecting lever 36 can rotate at a larger angle when the mechanism is switched on and switched off, in order to prevent the matching disorder of the mechanism caused by an overlarge rotation angle and protect components, a buffer cushion 53 is arranged on one side of the joint of the closing connecting lever 25 and the closing connecting rod 28 (and the joint of the opening connecting lever 36 and the opening connecting rod 35), the buffer cushion 53 is made of an impact-resistant flexible material, such as thick foam, the position of the buffer cushion 53 is satisfied that the closing connecting lever 25 can be allowed to rotate to a switching-on position and the opening connecting lever can be allowed to rotate to a switching-off position, and the buffer cushion 53 is fixedly installed on the mechanism plate 6 through a buffer bracket 54.
The spring energy storage mechanism of the invention can also be driven in an electric mode, as shown in fig. 10, the electric driving device of the spring energy storage mechanism comprises a motor 55, a one-way bearing 56 is arranged on an output shaft of the motor 55, a cylindrical gear 57 is sleeved on the one-way bearing 56, the cylindrical gear 57 is meshed with and linked with a large gear 58 sleeved on a transmission rotating shaft 9, when the motor rotates, the transmission rotating shaft 9 is driven to rotate through the large gear 58, thereby storing energy of the spring, the transmission rotating shaft 9 is connected with the big gear 58 through a clutch component, the clutch component has the function that the big gear 58 can drive the transmission rotating shaft 9 to rotate, however, when the transmission shaft 9 is driven by the opening mechanism to rotate reversely, the large gear is not driven to rotate, so that reverse rotating force is not applied to the motor, that is, the positive acting force of the motor does not need to be overcome during the opening operation, and the impact on the motor is not generated.
The circuit breaker operating mechanism further comprises an auxiliary switch device 4, the auxiliary switch device 4 comprises an auxiliary switch connecting lever 59 fixedly installed on the output shaft 5, the free end of the auxiliary switch connecting lever 59 is rotatably connected with an auxiliary switch connecting rod 60, the auxiliary switch connecting rod 60 is rotatably connected with a rotating shaft of a micro-motion detection switch 62 through an auxiliary switch linkage connecting lever 61, the rotating shaft of the micro-motion detection switch 62 is fixedly installed on the mechanism plate 6, when the output shaft 5 is driven by the closing device 2 and the opening device 3 to respectively rotate towards the closing or opening direction, the micro-motion detection switch 62 rotates along with the rotating shaft so as to detect the closing or opening state, and the closing and opening state can be displayed through an externally arranged display component.
Claims (6)
1. A circuit breaker operating mechanism is characterized by comprising a spring energy storage device, a switching-on device and a switching-off device, wherein the spring energy storage device is linked with the switching-on device, the switching-on device and the switching-off device share one output shaft and are connected to a circuit breaker, when switching-on operation is carried out, the spring energy storage is released to drive the output shaft to rotate in a switching-on direction, meanwhile, switching-off energy is stored for switching-off through a switching-off torsion spring, and when switching-off operation is carried out, the switching-off torsion spring releases the stored energy to drive the output shaft to rotate in a switching-off direction, so that;
the energy storage device is arranged on a mechanism plate of the circuit breaker operating mechanism, an installation pillar is arranged on the mechanism plate, the energy storage device comprises a closing tension spring for storing energy and a transmission rotating shaft for providing energy storage power for the closing tension spring, the output end of the transmission rotating shaft is connected with an energy storage cam capable of synchronously rotating along with the transmission rotating shaft, the free end of the energy storage cam is provided with an energy storage connecting rod, one end of the closing tension spring is rotatably connected to the installation pillar through a tension spring hanging plate, the other end of the closing tension spring is rotatably connected to the energy storage connecting rod through the tension spring hanging plate, when the transmission rotating shaft rotates under the driving of a power source, the energy storage;
the spring energy storage device also comprises an energy storage keeping device for positioning the energy storage of the closing tension spring, the energy storage keeping device comprises a closing cam which is arranged on the transmission rotating shaft and can synchronously rotate along with the transmission rotating shaft, one side of the free end of the closing cam is provided with an energy storage keeping roller, the energy storage keeping device also comprises a closing pawl which is arranged in the same plane with the energy storage keeping roller, the closing pawl is rotatably arranged on a pawl shaft, the pawl shaft is fixed on the mechanism plate, the closing pawl comprises an energy storage keeping end, an energy storage releasing end and a closing and stopping end, wherein the energy storage keeping end is provided with a plane which can be contacted with the energy storage keeping roller and keep the relative position unchanged, when the closing cam rotates to the energy storage position of the closing tension spring, the plane of the closing pawl props against the energy storage keeping roller so that the closing tension spring is kept at the energy storage position, and when the, the connecting line between the rotation central points of the two tension spring hanging plates and the connecting line between the rotation central point of the tension spring hanging plate connected with the mounting pillar and the rotation central point of the transmission rotating shaft have an included angle larger than 0 degree;
the closing device comprises a closing push rod and a closing four-bar linkage, a closing switch is arranged on a mechanism plate, the tail end of the closing switch extends into the mechanism plate and is linked with the closing push rod, a pin is arranged on one side of the closing push rod, one end of a closing push plate is hung on the pin through a waist-shaped hole, the other end of the closing push plate is linked with an energy storage release end of a closing pawl, when the closing push rod moves inwards under the pushing of the closing switch, the closing push plate is driven to move downwards through the linkage of the pin and the waist-shaped hole, so that the energy storage release end of the closing pawl is pushed to apply pushing force to the energy storage release end of the closing pawl, the closing pawl rotates to leave an energy storage maintaining roller, after the energy storage maintaining roller is released by the closing pawl, a closing cam can continue to rotate under the action of a closing tension spring, the closing four-bar linkage comprises a closing arm, a closing connecting rod and a transmission, the free end of the switching-on connecting lever is provided with a switching-on linkage post, when the switching-on cam continues to rotate, one side of the free end of the switching-on connecting lever touches the switching-on linkage post so as to drive the switching-on connecting lever to rotate, the other end of the switching-on connecting lever drives the transmission output connecting lever to rotate through the switching-on connecting rod, and the transmission output connecting lever is linked with an output shaft connected to the circuit breaker so as to enable the output shaft to rotate towards the switching-on direction;
the brake separating device comprises a brake separating torsional spring arranged on an output shaft and a brake separating output crank arm linked with the output shaft, the brake separating output crank arm is rotatably connected with the brake separating crank arm through a brake separating connecting rod, the brake separating crank arm and the brake closing crank arm share a crank arm shaft, the other end of the brake separating crank arm is provided with a brake separating linkage column, the brake separating device also comprises a brake separating retaining wheel and a brake separating pawl, the brake separating retaining wheel is an irregularly-shaped wheel arranged on a transmission rotating shaft, one end of the brake separating retaining wheel is matched with the brake separating pawl, the other end of the brake separating retaining wheel is provided with the brake separating retaining pawl matched with the brake separating linkage column, the brake separating pawl is rotatably arranged on the pawl shaft and comprises a brake separating retaining end, a brake separating power end and a brake separating pawl pin, when the brake separating torsional spring stores energy when the output shaft is driven by the brake separating device to rotate to carry out the brake, the brake separating output arm rotates along with the output shaft so as to drive the brake separating crank arm to rotate, until the separating brake linkage column is supported by the separating brake holding pawl, one end of the separating brake holding wheel is supported by the separating brake holding end of the separating brake pawl, the separating brake device is in a separating brake energy storage state, the separating brake device further comprises a separating brake push rod, a separating brake conical surface which can be matched with the separating brake pawl pin of the pawl is arranged on the separating brake push rod, a separating brake switch is arranged on the mechanism plate, the tail end of the separating brake switch extends into the mechanism plate to be linked with the separating brake push rod, when the separating brake push rod moves inwards under the pushing of the separating brake switch, the separating brake conical surface pushes the separating brake pawl pin to enable the separating brake pawl to rotate in the direction of separating from the separating brake holding wheel, when the separating brake holding end of the separating brake pawl leaves one section of the separating brake holding wheel, the separating brake holding state is released, and the separating brake torsion spring releases energy storage to drive the output shaft to rotate in the separating brake direction.
2. The circuit breaker operating mechanism according to claim 1, wherein the switching device further comprises an electric switching-on component, the electric switching-on component comprises a switching-on electromagnet, a switching-on pusher capable of pushing the switching-on/off stopping end of the switching-on pawl is arranged on the switching-on electromagnet, when the switching-on electromagnet is powered on, the switching-on pusher pushes the switching-on/off stopping end of the switching-on pawl, so that the energy storage holding end of the switching-on pawl leaves the energy storage holding roller, thereby performing switching-on operation, the electric switching-on component further comprises an electric switching-on limiting piece arranged on the switching-on push rod, and when the switching-on electromagnet is powered on, the electric switching-on limiting piece blocks.
3. The circuit breaker operating mechanism according to claim 1, wherein the opening device further comprises an electric opening part, the electric opening part comprises an opening electromagnet, an opening pusher capable of pushing the opening power end of the opening pawl is arranged on the opening electromagnet, and when the opening electromagnet is powered on, the opening pusher pushes the opening power end of the opening pawl to enable the opening holding end of the opening pawl to leave the opening holding wheel, so that the opening stored energy is released to perform opening operation.
4. The circuit breaker operating mechanism according to claim 1, wherein the pawl shaft is provided with a closing pawl torsion spring for resetting the closing pawl and a breaking pawl torsion spring for resetting the breaking pawl, when the closing cam rotates to a position where the energy storage maintaining roller interferes with the closing pawl, the closing pawl resets under the action of the closing pawl torsion spring to prepare for next energy storage, and when the breaking maintaining roller rotates to a position where the breaking pawl interferes with the breaking pawl, the breaking pawl resets under the action of the breaking pawl torsion spring to prepare for next energy storage.
5. The circuit breaker operating mechanism according to claim 1, wherein the mechanism plate is further provided with a switching-on/off gear lever, the switching-on/off gear lever is mounted on a side of the latch shaft, when the mechanism is in the spring energy storage state, the switching-on/off gear end of the switching-on latch is limited by the switching-on/off gear lever, and when the mechanism is in the switching-off energy storage state, the switching-off power end of the switching-off latch is limited by the switching-on/off gear lever.
6. The circuit breaker operating mechanism according to any one of claims 1-5, further comprising an auxiliary switch device, wherein the auxiliary switch device comprises an auxiliary switch connecting lever fixedly mounted on the output shaft, a free end of the auxiliary switch connecting lever is rotatably connected with an auxiliary switch connecting rod, the auxiliary switch connecting rod is rotatably connected with a rotating shaft of the micro-motion detection switch through an auxiliary switch linkage connecting lever, the rotating shaft of the micro-motion detection switch is fixedly mounted on the mechanism board, and when the output shaft is driven by the closing device and the opening device to rotate towards the closing direction or the opening direction respectively, the micro-motion detection switch rotates along with the output shaft so as to detect the closing state or the opening state.
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| CN201711029186.3A CN107768155B (en) | 2017-10-29 | 2017-10-29 | Circuit breaker operating mechanism |
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| CN107768155B true CN107768155B (en) | 2020-07-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108573836B (en) * | 2018-06-01 | 2024-01-19 | 河南森源电气股份有限公司 | Circuit breaker operating mechanism with prevent repeated combined floodgate interlocking |
| CN110690083B (en) * | 2018-07-04 | 2022-06-03 | 天津平高智能电气有限公司 | Spring operating mechanism and energy storage device thereof |
| CN110491697A (en) * | 2019-08-31 | 2019-11-22 | 武汉倍诺德开关有限公司 | A kind of combined floodgate structure of modularized circuit breaker |
| CN113571348B (en) * | 2021-07-02 | 2024-05-10 | 北京四方继保工程技术有限公司 | Operating mechanism for pole-mounted circuit breaker with built-in isolating switch |
| CN114446729B (en) * | 2021-12-23 | 2023-06-27 | 上海永大电器有限公司 | Power circuit breaker box with elastic energy storage device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6232569B1 (en) * | 1999-06-04 | 2001-05-15 | Mitsubishi Denki Kabushiki Kaisha | Switch control device |
| CN102047362A (en) * | 2008-06-02 | 2011-05-04 | 西门子公司 | Drive system for electrical switching devices |
| CN103794388A (en) * | 2014-02-25 | 2014-05-14 | 江苏新洛凯机电有限公司 | Torsional spring operating mechanism for universal circuit breaker |
| CN205282383U (en) * | 2015-12-30 | 2016-06-01 | 浙江巨力电气有限公司 | Spring operation mechanism |
| CN205692714U (en) * | 2016-06-08 | 2016-11-16 | 河南森源电气股份有限公司 | Chopper and spring operation, the sincere sub-component of energy storage and the sincere son of energy storage |
| CN207663954U (en) * | 2017-10-29 | 2018-07-27 | 默飓电气有限公司 | A kind of breaker operation mechanism |
-
2017
- 2017-10-29 CN CN201711029186.3A patent/CN107768155B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6232569B1 (en) * | 1999-06-04 | 2001-05-15 | Mitsubishi Denki Kabushiki Kaisha | Switch control device |
| CN102047362A (en) * | 2008-06-02 | 2011-05-04 | 西门子公司 | Drive system for electrical switching devices |
| CN103794388A (en) * | 2014-02-25 | 2014-05-14 | 江苏新洛凯机电有限公司 | Torsional spring operating mechanism for universal circuit breaker |
| CN205282383U (en) * | 2015-12-30 | 2016-06-01 | 浙江巨力电气有限公司 | Spring operation mechanism |
| CN205692714U (en) * | 2016-06-08 | 2016-11-16 | 河南森源电气股份有限公司 | Chopper and spring operation, the sincere sub-component of energy storage and the sincere son of energy storage |
| CN207663954U (en) * | 2017-10-29 | 2018-07-27 | 默飓电气有限公司 | A kind of breaker operation mechanism |
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Denomination of invention: A circuit breaker operating mechanism Effective date of registration: 20210316 Granted publication date: 20200707 Pledgee: Agricultural Bank of China branch of Wenzhou economic and Technological Development Zone, Limited by Share Ltd. Pledgor: MURGE ELECTRIC Co.,Ltd. Registration number: Y2021330000191 |
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Date of cancellation: 20220725 Granted publication date: 20200707 Pledgee: Agricultural Bank of China branch of Wenzhou economic and Technological Development Zone, Limited by Share Ltd. Pledgor: MURGE ELECTRIC Co.,Ltd. Registration number: Y2021330000191 |
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