CN110047713B - Reclosing transmission mechanism and molded case circuit breaker - Google Patents
Reclosing transmission mechanism and molded case circuit breaker Download PDFInfo
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- CN110047713B CN110047713B CN201910383041.6A CN201910383041A CN110047713B CN 110047713 B CN110047713 B CN 110047713B CN 201910383041 A CN201910383041 A CN 201910383041A CN 110047713 B CN110047713 B CN 110047713B
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- gear
- driven gear
- teeth
- main gear
- circuit breaker
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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
- H01H71/1009—Interconnected 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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Abstract
The invention relates to a reclosing transmission mechanism and a molded case circuit breaker, which comprise: a fixing plate; the connecting rod can be arranged on the fixed plate in a sliding mode, one end of the connecting rod is in linkage fit with an operating mechanism of the molded case circuit breaker, and a rack is arranged on one side of the connecting rod; the gear set is arranged on one side of the rack and can be meshed and matched with the rack during rotation, the gear set comprises a main gear and a driven gear, the main gear and the driven gear are attached to each other, at least one kidney-shaped hole is formed in the driven gear, a positioning rod is arranged on the main gear, the positioning rod and the kidney-shaped hole form sliding fit, the main gear and the driven gear are incomplete gears, and the teeth of the driven gear have a first state of being overlapped with the teeth of the main gear and a second state of being extended to serve as complementary teeth of the main gear; the motor is in linkage fit with the main gear of the gear set, manual control and automatic control are completely and freely operated, manual and automatic switching is not needed, and the operation is more convenient and faster.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to a reclosing transmission mechanism and a molded case circuit breaker.
Background
The traditional opening and closing actions of the molded case circuit breaker need manual operation, and due to the development of a smart power grid, various assembled molded case circuit breakers appear in the market, and most of the assembled molded case circuit breakers are in linkage fit with a handle.
If chinese patent CN207149496U discloses an energy storage electric operating device for moulded case circuit breaker, it installs drive mechanism in the top of moulded case circuit breaker, cover whole moulded case circuit breaker's handle, thereby utilize drive mechanism to drive the handle operation, realize automatic switch-over, however this kind of mounting means leads to whole moulded case circuit breaker highly to increase, and it does not possess the possibility of manual operation, when needs carry out manual operation, need special instrument to dismantle drive mechanism or can not realize manual operation completely, reclosing mechanism will connect on the handle promptly, including reclosing mechanism need cover the handle, and make the circuit breaker can not directly pass through handle control, influence the convenience of manual control circuit breaker.
In consideration of manual and automatic switching, chinese patent CN201811631779.1 discloses an intelligent molded case circuit breaker, which discloses that a handle is exposed to the outside, and manual and automatic switching is realized through a manual rotating piece.
Therefore, how to realize the manual-automatic non-switching operation of the molded case circuit breaker needs to be solved urgently.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a reclosing transmission mechanism and a molded case circuit breaker.
In order to achieve the purpose, the invention provides the following technical scheme: a reclosing drive mechanism, comprising:
a fixing plate;
the connecting rod can be arranged on the fixed plate in a sliding mode, one end of the connecting rod is in linkage fit with an operating mechanism of the molded case circuit breaker, and a rack is arranged on one side of the connecting rod;
the gear set is arranged on one side of the rack and can be meshed and matched with the rack during rotation, the gear set comprises a main gear and a driven gear, the main gear and the driven gear are attached to each other, at least one kidney-shaped hole is formed in the driven gear, a positioning rod is arranged on the main gear, the positioning rod and the kidney-shaped hole form sliding fit, the main gear and the driven gear are incomplete gears, and the teeth of the driven gear have a first state of being overlapped with the teeth of the main gear and a second state of being extended to serve as complementary teeth of the main gear;
and the motor is in linkage fit with the main gear of the gear set.
The connecting rods are 2, the connecting rods and the connecting rods are attached, and the racks of the two connecting rods are matched with each other.
The fixed plate is provided with a limiting column, and the limiting column is arranged on the other side of the gear set.
The main gear is in linkage fit with a shaft of the motor, and the driven gear is arranged in non-linkage with the shaft of the motor.
The utility model provides a moulded case circuit breaker, its includes the casing, be equipped with reclosing drive mechanism in the casing, reclosing drive mechanism includes:
a fixing plate;
the connecting rod can be arranged on the fixed plate in a sliding mode, one end of the connecting rod is in linkage fit with an operating mechanism of the molded case circuit breaker, and a rack is arranged on one side of the connecting rod;
the gear set is arranged on one side of the rack and can be meshed and matched with the rack during rotation, the gear set comprises a main gear and a driven gear, the main gear and the driven gear are attached to each other, at least one kidney-shaped hole is formed in the driven gear, a positioning rod is arranged on the main gear, the positioning rod and the kidney-shaped hole form sliding fit, the main gear and the driven gear are incomplete gears, and the teeth of the driven gear have a first state of being overlapped with the teeth of the main gear and a second state of being extended to serve as complementary teeth of the main gear;
a motor which is in linkage fit with the main gear of the gear set,
when the reclosing transmission mechanism is in a closing action, the gear set has a closing proceeding state which is meshed with the rack to drive the operating mechanism to move to a closing state and a complete closing state in which the gear set is separated from the rack when the operating mechanism is in the complete closing state, and when the reclosing transmission mechanism is in the complete closing state, the reclosing transmission mechanism can be manually operated.
The connecting rod is in linkage fit with a lever of the operating mechanism.
And a linkage piece is arranged between the connecting rod and the operating mechanism.
The transmission distance between the teeth of the main gear and the driven gear of the reclosing transmission mechanism in the first state is equal to the reclosing stroke of the molded case circuit breaker.
And the transmission distance between the teeth of the main gear and the driven gear of the reclosing transmission mechanism in the second state is equal to the closing stroke of the molded case circuit breaker.
The invention has the beneficial effects that: the main gear and the driven gear are matched with each other, in the re-buckling process, the rotation of the main gear is overlapped with the driven gear, so that the connecting rod is driven to slide, re-buckling is completed, when the switch-on is performed, the driven gear is used as a compensation tooth of the main gear after a certain stroke due to the previous rotation of the main gear, the switch-on operation is completed, after the switch-on is completed, the meshing between the main gear and the connecting rod is removed, the handle can be manually operated, therefore, the manual control and the automatic control can be completely operated freely, the manual automatic switching is not needed additionally, and the operation is more convenient and faster.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the engagement between the gear set and the connecting rod during opening of the brake according to the present invention.
FIG. 3 is a schematic diagram of the engagement between the gear set and the connecting rod during the rebutting process of the present invention.
Fig. 4 is a schematic diagram of the gear set and the link rod in the closing process of the present invention.
Fig. 5 is a schematic structural view of the gear set.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a reclosing transmission mechanism, which is used for a molded case circuit breaker and used for remote reclosing operation, is arranged in a shell of the circuit breaker, is directly connected with an operation mechanism of the molded case circuit breaker and is not connected with a handle 2, and comprises:
the fixed plate 4 is used for supporting and is fixedly arranged on a bottom shell of the molded case circuit breaker, the connecting rod and the gear set are arranged on the fixed plate, and the driving shaft of the motor penetrates through the fixed plate to be in linkage fit with the gear set;
the connecting rod 3 can be arranged on the fixed plate in a sliding mode, one end of the connecting rod is in linkage fit with an operating mechanism of the molded case circuit breaker, and a rack is arranged on one side of the connecting rod;
the front end of the connecting rod can be connected with a linkage piece 7 through arrangement, one end of the linkage piece is directly hinged with a lever of the operating mechanism, the other end of the linkage piece is configured to be connected with the connecting rod, the front end of the connecting rod is provided with a notch groove, one end of the linkage piece matched with the linkage piece is provided with a clamping piece, the clamping piece can be inserted into the notch groove, the linkage piece is driven to move through the sliding of the connecting rod, and then the actions of re-buckling, closing and opening are finished, and as another mode, the mode that the front end of the connecting rod is provided with a bayonet can be directly and fixedly connected with one end of the linkage;
as shown in fig. 5, the gear set 5, which is disposed on one side of the rack and can be engaged with the rack during rotation, includes a main gear 51 and a driven gear 52, which are attached to each other, and the driven gear is provided with at least one kidney-shaped hole 53, the main gear is provided with a positioning rod 54, the positioning rod 54 and the kidney-shaped hole 53 form a sliding fit, the main gear and the driven gear are both incomplete gears, and the teeth of the driven gear have a first state of overlapping with the teeth of the main gear and a second state of extending as complementary teeth of the main gear;
as an example, 8 teeth are provided on the main gear, and 3 teeth are provided on the driven gear, i.e. the gear set has two teeth numbers, one is that the teeth of the driven gear overlap with the teeth of the main gear, i.e. the gear set has only 8 teeth, and the other is that the teeth of the driven gear are used as compensation teeth of the main gear, i.e. the gear set has 11 teeth.
In order to realize the state, a waist-shaped hole is arranged on the driven wheel or the master gear, a positioning rod is arranged on the master gear or the driven gear, the positioning rod is embedded in the waist-shaped hole and can slide along the waist-shaped hole, when the positioning rod is abutted against the edge of the waist-shaped hole, the master gear drives the driven gear to rotate along with the waist-shaped hole, and when the positioning rod is positioned in the interval of the waist-shaped hole, the master gear does not drive the driven gear to rotate.
As shown in fig. 3, when the gear set moves counterclockwise, when the first tooth of the master gear (the first tooth in the counterclockwise direction) overlaps with the first tooth of the driven gear, the positioning rod just abuts against the edge of the kidney-shaped hole, the edge is the edge on the front side in the counterclockwise rotation direction, at this time, the master gear drives the driven gear to rotate and is meshed with the rack of the connecting rod to drive the operating mechanism to move, and at this time, 8 teeth of the gear set matched with the connecting rod are provided.
As shown in fig. 4, when the gear set moves clockwise, when the last tooth of the master gear (the last tooth in the instantaneous needle direction) is separated from the first tooth of the slave gear (the first tooth in the instantaneous needle direction), the positioning rod just abuts against the edge of the kidney-shaped hole, the edge is the edge on the front side in the clockwise rotation direction, only at this time, the master gear drives the slave gear to rotate, the teeth of the slave gear are used as compensation teeth of the master gear and are meshed with the rack of the connecting rod to continue driving the connecting rod to move, so that the operating mechanism enters the closing pole to complete closing, and in this state, the number of the teeth of the gear set matched with the connecting rod is 11.
Make the number of teeth of gear train can present different numbers of teeth according to clockwise and anticlockwise rotation direction's difference promptly, be convenient for accomplish the operation of detaining again and closing a floodgate, simultaneously when manual operation, the driven gear tooth can not constitute spacing to the connecting rod to make under the automatic closing state, also can accomplish manual separating brake operation without any switching operation.
The motor is in linkage fit with the main gear of the gear set, a driving shaft of the motor is only matched with an inner hole of the main gear and is not matched with the driven gear, namely, the rotation of the motor only drives the main gear to act, the driven gear cannot be directly driven by the motor, and the main gear can drive the driven gear to act only after the main gear rotates for a certain distance.
The thickness of the rack of connecting rod must be able to follow the tooth meshing of gear train, consequently is in the convenient demand of processing, can with the connecting rod sets up to 2, and both laminating settings, and the rack of two connecting rods coincide each other and set up, utilize the thickness stack of two connecting rods to satisfy the thickness of two gears promptly, convenient processing.
One side of the connecting rod is provided with a rack 32, the other side of the connecting rod is limited by a plurality of limiting protrusions 8, a sliding groove 31 is formed in the connecting rod, a plurality of positioning sliding blocks 9 are arranged in the sliding groove, the sliding direction of the connecting rod is limited, and the phenomenon that the sliding deviation of the connecting rod occurs to affect the normal work of the operating mechanism is avoided.
The fixed plate 4 is provided with a limiting column 6, the limiting column 6 is arranged on the other side of the gear set, namely, when the gear rotates clockwise or anticlockwise, a limiting effect is achieved, and in-place signal detection can be achieved when the gear reaches limiting.
The main gear 51 is in linkage fit with the shaft of the motor, and the driven gear 52 is arranged in non-linkage with the shaft of the motor.
As shown in fig. 1, the invention also discloses a molded case circuit breaker, which comprises a casing 1, wherein the reclosing transmission mechanism is arranged in the casing, and a connecting rod of the reclosing transmission mechanism is in linkage fit with a lever of the operating mechanism.
The transmission distance between the teeth of the main gear and the driven gear of the reclosing transmission mechanism in the first state is equal to the reclosing stroke of the molded case circuit breaker.
And the transmission distance between the teeth of the main gear and the driven gear of the reclosing transmission mechanism in the second state is equal to the closing stroke of the molded case circuit breaker.
As shown in fig. 2, the current state is a state when the molded case circuit breaker is opened, the main gear abuts against the limit post, and the driven gear is driven by the main gear to be disengaged from the rack of the connecting rod, and in this state, the closing operation can be performed manually.
When the operation mechanism needs to be buckled again, firstly, the motor rotates anticlockwise, the motor drives the main gear to rotate due to the fact that the motor shaft is meshed with the main gear, the driven gear is not meshed with the motor and cannot be driven to rotate, when the positioning rod of the main gear slides along the kidney-shaped hole and abuts against the edge of the kidney-shaped hole, the main gear drives the driven gear to rotate, the teeth of the driven gear are completely overlapped with the teeth of the main gear at the moment, then the teeth of the driven gear are meshed with the teeth of the connecting rod, the connecting rod is driven to slide, and the operation mechanism enters a buckled state again, as shown in fig. 3.
When the switch-on is needed, the motor rotates clockwise in a re-buckling state, and due to the change of direction, the original main gear drives the driven gear to rotate, then the main gear rotates independently and drives the connecting rod to act, when the positioning rod of the main gear is abutted against the other edge of the kidney-shaped hole, the tooth of the driven gear becomes the compensation tooth of the main gear and is meshed with the rack independently to drive the rack to continue to advance, when the tooth of the main gear is not meshed with the rack, the tooth of the driven gear serving as the compensation tooth can still drive the rack to continue to act, the transmission distance of the compensation tooth just enables the connecting rod to enter the pole of the switch-on of the molded case circuit breaker, the switch-on is completed by the operating mechanism of the circuit breaker, and the continuous action of the motor can drive the driven gear to be also separated from the rack to complete the switch-on, at this time, therefore, the action of the brake can not be limited by the gear set, and the manual brake opening can still be completed through the action of the handle.
The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of protection of the present invention.
Claims (9)
1. The utility model provides a reclosing lock drive mechanism which characterized in that: it includes:
a fixing plate;
the connecting rod can be arranged on the fixed plate in a sliding mode, one end of the connecting rod is in linkage fit with an operating mechanism of the molded case circuit breaker, and a rack is arranged on one side of the connecting rod;
the gear set is arranged on one side of the rack and can be meshed and matched with the rack during rotation, the gear set comprises a main gear and a driven gear, the main gear and the driven gear are attached to each other, at least one kidney-shaped hole is formed in the driven gear, the main gear is provided with a positioning rod, the positioning rod and the kidney-shaped hole form sliding fit, the main gear and the driven gear are incomplete gears, and the gear set has a first state that the teeth of the driven gear are overlapped with those of the main gear, the teeth of the driven gear and a second state that the teeth of the driven gear extend to serve as supplementary teeth of the;
and the motor is in linkage fit with the main gear of the gear set.
2. The reclosing drive mechanism of claim 1, wherein: the connecting rods are 2, the connecting rods and the connecting rods are attached, and the racks of the two connecting rods are matched with each other.
3. The reclosing gear transmission mechanism according to claim 1, characterized in that: the fixed plate is provided with a limiting column, and the limiting column is arranged on the other side of the gear set.
4. The reclosing gear transmission mechanism according to claim 1, characterized in that: the main gear is in linkage fit with a shaft of the motor, and the driven gear is arranged in non-linkage with the shaft of the motor.
5. A molded case circuit breaker, comprising a case, characterized in that: be equipped with reclosing lock drive mechanism in the casing, reclosing lock drive mechanism includes:
a fixing plate;
the connecting rod can be arranged on the fixed plate in a sliding mode, one end of the connecting rod is in linkage fit with an operating mechanism of the molded case circuit breaker, and a rack is arranged on one side of the connecting rod;
the gear set is arranged on one side of the rack and can be meshed and matched with the rack during rotation, the gear set comprises a main gear and a driven gear, the main gear and the driven gear are attached to each other, at least one kidney-shaped hole is formed in the driven gear, the main gear is provided with a positioning rod, the positioning rod and the kidney-shaped hole form sliding fit, the main gear and the driven gear are incomplete gears, and the gear set has a first state that the teeth of the driven gear are overlapped with those of the main gear, the teeth of the driven gear and a second state that the teeth of the driven gear extend to serve as supplementary teeth of the;
a motor which is in linkage fit with the main gear of the gear set,
when the reclosing transmission mechanism is in a closing action, the gear set has a closing proceeding state which is meshed with the rack to drive the operating mechanism to move to a closing state and a complete closing state in which the gear set is separated from the rack when the operating mechanism is in the complete closing state, and when the reclosing transmission mechanism is in the complete closing state, the reclosing transmission mechanism can be manually operated.
6. The molded case circuit breaker according to claim 5, wherein: the connecting rod is in linkage fit with a lever of the operating mechanism.
7. A molded case circuit breaker according to claim 5 or 6, characterized in that: and a linkage piece is arranged between the connecting rod and the operating mechanism.
8. The molded case circuit breaker according to claim 5, wherein: the transmission distance between the teeth of the main gear and the driven gear of the reclosing transmission mechanism in the first state is equal to the reclosing stroke of the molded case circuit breaker.
9. The molded case circuit breaker according to claim 5, wherein: and the transmission distance between the teeth of the main gear and the driven gear of the reclosing transmission mechanism in the second state is equal to the closing stroke of the molded case circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910383041.6A CN110047713B (en) | 2019-05-09 | 2019-05-09 | Reclosing transmission mechanism and molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910383041.6A CN110047713B (en) | 2019-05-09 | 2019-05-09 | Reclosing transmission mechanism and molded case circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110047713A CN110047713A (en) | 2019-07-23 |
| CN110047713B true CN110047713B (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910383041.6A Active CN110047713B (en) | 2019-05-09 | 2019-05-09 | Reclosing transmission mechanism and molded case circuit breaker |
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| CN (1) | CN110047713B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562117B (en) * | 2021-09-06 | 2022-10-14 | 山东海运股份有限公司 | Anchor chain speed reduction device for ship and combined chain stopper |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3221156B2 (en) * | 1993-06-29 | 2001-10-22 | 松下電工株式会社 | Electric circuit breaker operating device |
| CN202816826U (en) * | 2012-05-21 | 2013-03-20 | 刘永华 | Manual and automatic reclosing lock integrated device of intelligent residual current circuit breaker |
| CN203367189U (en) * | 2013-06-01 | 2013-12-25 | 丁云广 | Grooved pulley type electric or manual closing device based on intelligent switch |
| CN203367178U (en) * | 2013-07-10 | 2013-12-25 | 丁云广 | Incomplete gear type electric or manual closing device based on intelligent switch |
| DE202014103419U1 (en) * | 2014-07-24 | 2014-10-27 | Johnson Electric Germany GmbH & Co. KG | Remote actuator for slide-in mounting in circuit breaker |
| CN208422813U (en) * | 2018-07-26 | 2019-01-22 | 厦门大恒科技有限公司 | A kind of rack drives formula memorial alloy reclosing |
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| CN110047713A (en) | 2019-07-23 |
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