CN111223726B - Intelligent circuit breaker electric operating device driving and tripping structure - Google Patents
Intelligent circuit breaker electric operating device driving and tripping structure Download PDFInfo
- Publication number
- CN111223726B CN111223726B CN202010022464.8A CN202010022464A CN111223726B CN 111223726 B CN111223726 B CN 111223726B CN 202010022464 A CN202010022464 A CN 202010022464A CN 111223726 B CN111223726 B CN 111223726B
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- Prior art keywords
- driving
- gear
- rod
- circuit breaker
- tripping
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
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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
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- Breakers (AREA)
Abstract
The invention relates to the technical field of low-voltage circuit breakers, and discloses a driving and tripping structure of an electric operating device of an intelligent circuit breaker, which comprises a driving motor and a base, wherein the base is provided with a base groove, a transmission gear, a connecting rod, a driving gear, a driving rod, a guide rod and a tripping rod; the transmission gear is in meshing transmission with the driving gear, one end of the connecting rod is connected with the driving gear through the matching hole, the guide rod is provided with a kidney-shaped hole, and the other end of the connecting rod is arranged in the kidney-shaped hole; the trip rod is coaxial with the driving gear, and the guide rod is coaxially connected with the driving rod through the driving shaft; the breaker handle is connected with the driving shaft and rotates synchronously with the driving shaft. The invention can avoid the damage of internal parts caused by manual operation when the tripping part is not reset, can realize the functions of remote brake opening, closing and tripping, can carry out operation switching, realizes manual/automatic operation, and is convenient for remote control and field maintenance.
Description
Technical Field
The invention relates to the technical field of low-voltage circuit breakers, in particular to a driving and tripping structure of an electric operating device of an intelligent circuit breaker.
Background
The common automatic switching-on and switching-off device of the circuit breaker increases the output torque of a motor and reduces the rotating speed to supply power for switching-on and switching-off of the circuit breaker through a motor driving gear system. When the circuit breaker is used by a user, switching-on and switching-off operations are carried out on the circuit breaker product according to an instruction output by the user, and remote control is realized through a communication function. The automatic switching-on and switching-off device of the circuit breaker drives the circuit breaker mechanism to switch on through the gear mechanism, and due to the fact that the internal transmission gear is of a linkage structure, when remote switching-on is not in place, manual switching-on can not be carried out due to the unidirectional transmission effect of the worm, and the switch cannot be used. And when not resetting after the opening, because the abdicating structure is not adopted, the internal gear set is damaged by manual operation, and the product is damaged.
Disclosure of Invention
The invention aims to solve the problem of gear tooth punching caused by the fact that the circuit breaker is not switched on in place or a reset instruction is not sent out in the prior art, and provides a driving and tripping structure of an electric operating device of an intelligent circuit breaker. The invention enables the circuit breaker to realize the functions of remote brake opening, closing and tripping, can carry out operation switching, realizes manual/automatic operation, and is convenient for remote control and field maintenance.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a driving and tripping structure of an electric operating device of an intelligent circuit breaker comprises a driving motor and a base, wherein the base is provided with a base groove, a transmission gear, a connecting rod, a driving gear, a driving rod, a guide rod and a tripping rod; the transmission gear is in meshing transmission with the driving gear, the driving gear is provided with a matching hole, one end of the connecting rod is connected with the driving gear through the matching hole, the guide rod is provided with a kidney-shaped hole, and the other end of the connecting rod is arranged in the kidney-shaped hole; the driving gear is provided with a convex structure matched with the trip bar for use, the trip bar is coaxial with the driving gear, when the driving gear rotates reversely, the convex structure on the driving gear acts on the trip bar so as to drive the trip bar to rotate and trip, and when the driving gear rotates positively, the driving gear is not matched with the trip bar; the guide rod is coaxially connected with the driving rod through a driving shaft; the circuit breaker handle is connected with the drive shaft, and rotates synchronously with the drive shaft, and the circuit breaker handle can drive the circuit breaker to divide-shut brake.
The output shaft of the driving motor is provided with a worm, the worm outputs the power of the driving motor, the transmission gear is arranged on the base and consists of gear sets which alternate in space, the gear sets can rotate for 360 degrees, the transmission gear completes the transmission of the power, and the power and the motion input by the worm are output to the driving gear. Drive gear installs on the base, with drive gear's terminal gear train cooperation, there is the mating holes on the drive gear, the mating holes is the round hole, connecting rod one end is installed in the drive gear round hole, the connecting rod other end is installed at the guide bar waist type downthehole, circular motion is done when the guide bar is used for restricting connecting rod one end combined floodgate, drive gear forward rotation passes through the connecting rod with motion transmission to actuating lever, drives the circuit breaker combined floodgate by the actuating lever. The tripping rod is coaxial with the driving gear and is positioned at the bottom of the driving gear, a protruding structure is designed at the back of the driving gear, and the driving gear rotates reversely and acts on the tripping rod through the protruding structure to drive the tripping rod to rotate and trip. The closing process of the forward rotation of the driving gear is not matched with the tripping rod.
Further, the base is provided with a base round hole, and two sides of the guide rod are arranged in the base round hole.
The guide rod and the driving rod are coaxially installed and swing within a certain angle, the guide rod is sleeved on a driving rod shaft, two sides of the guide rod are installed in a circular hole of the base, the driving shaft is installed on the axis of the guide rod, and the driving shaft acts on a handle of the circuit breaker to drive the circuit breaker to switch on.
Further, the actuating lever is equipped with actuating lever circular hook structure, and the connecting rod acts on actuating lever circular hook structure and drives the actuating lever and swing when closing a floodgate to drive the guide bar and swing, the guide bar is spacing by connecting rod and base.
The connecting rod acts on the circular hook structure of the driving rod to drive the driving rod to swing, so that the guide rod swings in a certain range and is limited by the connecting rod and the base, one end of the connecting rod swings in the waist-shaped hole of the guide rod in the process of reversely tripping the driving gear,
further, the drive gear is a gear having incomplete teeth.
Further, the trip bar is located at the bottom of the drive gear.
Further, the transmission gear comprises a plurality of gear sets which are alternated in space, the gear sets can rotate in 360 degrees, each gear set comprises a tail end gear set, and the tail end gear sets are in meshing transmission with the driving gears.
Furthermore, at least one gear set in the plurality of gear sets adopts a base cantilever rotating shaft.
The invention has the beneficial effects that: the invention provides a driving and tripping structure of an electric operating device, wherein a driving gear drives a driving rod to rotate through a connecting rod to complete switching-on, the motion track of the connecting rod is fixed in a mode of increasing a guide rod, the motion abdication of the driving rod and the connecting rod is realized during the resetting of the connecting rod, the waist-shaped hole structure of the guide rod allows a certain movement amount of the connecting rod, the switching-on process is contacted with the fixed position of the connecting rod due to the design of the position of the waist-shaped hole, and the structure is simple and novel. The total transmission ratio is not fixed in the switching-on process, the whole structure is firstly reduced and then increased, and the total transmission ratio is increased before a switching-on dead point, so that the total transmission ratio is beneficial to passing through the switching-on dead point and has larger switching-on torque. The driving gear and the tripping rod are coaxially arranged, the driving gear is multifunctional, a simple and reliable tripping mode is achieved, the space layout is compact and reasonable, the arrangement of the transmission gear part is compact, and the size of the electric operation in the height direction is fully utilized. At least one gear train directly adopts base cantilever rotation axis in a plurality of gear trains, has simplified the structure, has increased connecting rod activity space, increases the gear layout redundancy, makes things convenient for gear train position adjustment in later stage to adapt to multiple scheme.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of an initial closing state of the invention.
Fig. 3 is a schematic structural view of a reset state of a guide member after closing.
Fig. 4 is a schematic structural diagram of the trip state of the present invention.
Fig. 5 is a schematic view of the installation structure of the cantilever gear set of the present invention.
FIG. 6 is a schematic view of the structure of the driving gear and the trip bar of the present invention.
Fig. 7 is a schematic structural view of the driving rod and the guide rod of the present invention.
FIG. 8 is a schematic view of the transmission gear structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
In the first embodiment, as shown in fig. 1, an intelligent circuit breaker electric operating device driving and tripping structure comprises a driving motor 3 and a base 1, wherein the base 1 is provided with a base groove, a transmission gear 5, a connecting rod 6, a driving gear 52, a driving rod 7, a guide rod 8 and a tripping rod 9, the base 1 is further provided with a circuit board 2, the driving motor 3 is installed in the base groove, an output shaft of the driving motor 3 is provided with a worm 4, the worm 4 outputs driving motor power, and the output shaft of the driving motor 3 is meshed and connected with the transmission gear 5 through the worm 4; the transmission gear 5 comprises a plurality of gear sets 51 (see fig. 8) which are spatially alternated, the gear sets 51 can rotate 360 degrees, the installation structure of the gear sets 51 is shown in fig. 5, the gear sets 51 comprise end gear sets, the end gear sets are in meshing transmission with the driving gear 52, the driving gear 52 is a gear with incomplete teeth, the transmission gear 5 completes the transmission of power, and the power and the motion input by the worm 4 are output to the driving gear 52. One of the gear sets 51 is directly a base cantilevered axis of rotation.
Be equipped with the mating holes on the drive gear 52, the mating holes is the round hole, and connecting rod 6 one end is passed through the mating holes and is connected with drive gear 52, and base 1 is equipped with the base round hole, and install in the base round hole guide bar 8 both sides. The guide rod 8 is provided with a waist-shaped hole, and the other end of the connecting rod 6 is arranged in the waist-shaped hole. Connecting rod 6 one end is installed in the drive gear round hole, and the connecting rod 6 other end is installed in guide bar waist type downthehole, and guide bar 8 is used for limiting 6 one ends of connecting rod and is circular motion when closing a floodgate, and drive gear 52 forward rotation will move transmission to the actuating lever through the connecting rod, drives the circuit breaker by the actuating lever and closes a floodgate.
The driving gear 52 is provided with a protruding structure for cooperating with the trip lever 9, the trip lever 9 being located at the bottom of the driving rod. As shown in fig. 6, trip bar 9 is coaxial with driving gear 52, when driving gear 52 rotates reversely, the protruding structure on driving gear 52 acts on trip bar 9 to drive trip bar 9 to rotate and trip, and when driving gear 52 rotates forwardly, it does not cooperate with trip bar 9; the guide rod 8 is coaxially connected with the driving rod 7 through a driving shaft (see fig. 7); the circuit breaker handle is connected with the drive shaft, and rotates synchronously with the drive shaft, and the circuit breaker handle can drive the circuit breaker to divide-shut brake.
The actuating lever 7 is equipped with actuating lever circular hook structure, and the connecting rod acts on actuating lever circular hook structure and drives actuating lever 7 and swing when closing a floodgate to drive guide bar 8 and swing, guide bar 8 is spacing by connecting rod 6 and base 1.
The closing process is as shown in fig. 2, the circuit breaker is in an opening state, the driving rod 7 is in contact with the connecting rod 6, the driving motor 3 rotates in the forward direction and drives the driving gear 52 to rotate in the forward direction through the transmission gear 5, the driving gear 52 acts on the driving rod 7 through the connecting rod 6, under the action of the guide rod 8, two ends of the connecting rod 6 move according to a fixed track, and the driving rod 7 rotates in the forward direction and drives the circuit breaker to complete closing through the driving shaft.
As shown in fig. 3, in the resetting process of the guide rod 8, in the switching-on position, the driving rod 7 keeps fixed, the driving motor 3 rotates reversely to drive the driving gear 52 to rotate reversely, the guide rod 8 is driven to rotate towards the switching-off direction through the connecting rod 6, one end of the connecting rod 6 slides in the groove of the driving rod in the rotating process, and the rotation is stopped when the initial position is detected. In the initial position, the opening operation can be manually carried out, and the driving rod 7 moves along with the handle of the circuit breaker and is not in contact with the connecting rod 6 and the guide rod 8.
Tripping (opening) process, as shown in fig. 4, the drive gear 52 continues to rotate reversely at the initial position, the guide bar 8 is not moved, one end of the connecting bar 6 rotates along with the drive gear 52, the other end swings in the guide bar groove, the trip bar 9 is driven to rotate when the protruding structure at the back of the drive gear 52 contacts with the trip bar 9, the trip bar 9 reaches a tripping angle and then releases the mechanism, the breaker opens, the drive bar 7 returns to the opening position, the drive bar 7 contacts with one end of the connecting bar 6, at this time, the mechanism is manually closed at the releasing position and can not drive the breaker to close, and the connecting bar 6 unidirectionally drives the drive bar 7, so internal parts can not be damaged.
In the resetting process, the driving gear 52 rotates forwards, the protruding structure on the back of the driving gear 52 is separated from the trip rod 9, the driving gear 52 stops rotating after detecting the middle position, the trip rod 9 is reset to the initial state, at the moment, the working cycle is completed, and the switching-on operation can be manually or automatically carried out.
By adopting the technical scheme disclosed by the invention, the following beneficial effects are obtained:
the invention realizes the manual switching-on and switching-off operation after the remote operation switching-on the structural design, and can also perform the manual switching-on when the automatic switching-on is not in place. The invention can prevent the internal parts from being damaged by manual operation when the tripping part is not reset. The invention enables the circuit breaker to realize remote switching-off, switching-on and tripping functions. And the operation can be switched, manual/automatic operation is realized, and remote control and field maintenance are facilitated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (7)
1. The intelligent circuit breaker electric operating device driving and tripping structure is characterized by comprising a driving motor and a base, wherein the base is provided with a base groove, a transmission gear, a connecting rod, a driving gear, a driving rod, a guide rod and a tripping rod; the transmission gear is in meshing transmission with the driving gear, a matching hole is formed in the driving gear, one end of the connecting rod is connected with the driving gear through the matching hole, a waist-shaped hole is formed in the guide rod, and the other end of the connecting rod is installed in the waist-shaped hole; the driving gear is provided with a convex structure matched with the trip bar for use, the trip bar is coaxial with the driving gear, when the driving gear rotates reversely, the convex structure on the driving gear acts on the trip bar to push the trip bar to rotate and trip, and when the driving gear rotates forwardly, the driving gear is not matched with the trip bar; the guide rod is coaxially connected with the driving rod through a driving shaft, a circular hook structure is arranged on the driving rod, and the circular hook structure is positioned at the top end of the connecting rod connected with the kidney-shaped hole; the circuit breaker handle with the actuating lever passes through the drive shaft is connected, and with the drive shaft synchronous rotation, the circuit breaker handle can drive circuit breaker divide-shut brake.
2. The electrical operating device driving and tripping structure of an intelligent circuit breaker according to claim 1, wherein the base is provided with a base circular hole, and both sides of the guide rod are installed in the base circular hole.
3. The intelligent circuit breaker electric operating device driving and tripping structure according to claim 1 or 2, wherein when switching on, the connecting rod acts on the circular hook structure and drives the driving rod to swing, so as to drive the guide rod to swing, and the guide rod is limited by the connecting rod and the base.
4. The smart circuit breaker electrically operated device driving and tripping structure of claim 3, wherein said driving gear is a gear with incomplete teeth.
5. The intelligent circuit breaker electrically operated device driving and tripping structure of claim 3, wherein said trip bar is located at the bottom of said driving gear.
6. The intelligent circuit breaker electrically operated device driving and tripping structure as recited in claim 1, wherein the transmission gear comprises a plurality of gear sets alternating in space, the gear sets being capable of 360 degree rotation, the gear sets comprising an end gear set, the end gear set being in meshing transmission with the driving gear.
7. The intelligent circuit breaker electrically operated device driving and tripping structure of claim 6, wherein at least one of said plurality of gear sets employs a base cantilevered rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010022464.8A CN111223726B (en) | 2020-01-09 | 2020-01-09 | Intelligent circuit breaker electric operating device driving and tripping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010022464.8A CN111223726B (en) | 2020-01-09 | 2020-01-09 | Intelligent circuit breaker electric operating device driving and tripping structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111223726A CN111223726A (en) | 2020-06-02 |
| CN111223726B true CN111223726B (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010022464.8A Active CN111223726B (en) | 2020-01-09 | 2020-01-09 | Intelligent circuit breaker electric operating device driving and tripping structure |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES285199Y (en) * | 1985-03-08 | 1986-12-16 | Electrotecnica F. De Roda, S.A. | PERFECTED LATCH FOR A DIFFERENTIAL SWITCH |
| CN205692781U (en) * | 2016-03-23 | 2016-11-16 | 德力西电气有限公司 | Closing operation controlling organization and chopper |
| CN106356263B (en) * | 2016-11-29 | 2018-10-23 | 浙江中富电气有限公司 | A kind of auto recloser of breaker |
| CN208596649U (en) * | 2018-05-07 | 2019-03-12 | Abb股份公司 | Stored energy operating mechanism for breaker and the behavior control device for stored energy operating mechanism, locking device, shell and motor support mechanism |
| CN209282153U (en) * | 2018-09-04 | 2019-08-20 | 上海良信电器股份有限公司 | A kind of electrically operated device drive transmission device |
| CN211125539U (en) * | 2020-01-09 | 2020-07-28 | 北京北元电器有限公司 | Intelligent circuit breaker electric operating device driving and tripping structure |
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2020
- 2020-01-09 CN CN202010022464.8A patent/CN111223726B/en active Active
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| CN111223726A (en) | 2020-06-02 |
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