CN218676994U

CN218676994U - Switching-on and switching-off mechanism for circuit breaker

Info

Publication number: CN218676994U
Application number: CN202222917686.3U
Authority: CN
Inventors: 支朝乾
Original assignee: Yueqing Haige Iot Technology Co ltd
Current assignee: Yueqing Haige Iot Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-21
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a divide-shut brake mechanism for circuit breaker, including electric operating mechanism, the chassis, handle arm-tie and linkage, the handle arm-tie sets to available drive handle and carries out the divide-shut brake action, the handle arm-tie passes through the linkage and drives, relate to on the linkage can be used to the rack of dividing the power conduction with the clutch pulley, clutch pulley self and gear train linkage, the gear train is connected with the motor, the chassis can be used to the gear train, a plurality of subassemblies of electric operating mechanism such as clutch pulley carry out reliable setting, the realization is integrated with the electric operating mechanism who traditionally is used on the circuit breaker, realize promptly with the electric operating mechanism modularization, and compare in traditional moulded case circuit breaker for realizing reclosing function, can simplify greatly through adopting its design and the structural installation of modularization electric operating mechanism, and simple structure, and reasonable layout, and can realize making the circuit breaker stable performance safe and reliable that has used this divide-shut brake mechanism.

Description

Switching-on and switching-off mechanism for circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to divide-shut brake mechanism for circuit breaker.

Background

The breaker is a switching device used for a distribution electrical appliance in a power grid, can connect, bear and break the current under normal circuit conditions, and can also connect, bear and break the current for a certain time under specified abnormal conditions (such as overload, short circuit, undervoltage and single-phase earth fault). The electric operating mechanism is a special fitting for the plastic shell type circuit breaker, and can electrically close, open and detain the circuit breaker again in a long distance after being matched with the circuit breaker so as to realize the centralized and automatic control of the power transmission and distribution network. With the development of electric power utilities, the operation mechanism of the molded case circuit breaker has gradually become the mainstream of the current development, and the design is developed towards miniaturization and intellectualization. Current coincidence moulded case circuit breaker includes moulded case circuit breaker, sets up the electric operating mechanism on moulded case circuit breaker, however, current coincidence moulded case circuit breaker's electric operating mechanism structural design is unreasonable, leads to coincidence moulded case circuit breaker's structural design unreasonable, and then leads to coincidence moulded case circuit breaker to have the defect that the structure is complicated, the volume is great, the performance is unreliable.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide one kind and be used for the circuit breaker, realize that circuit breaker stable performance is reliable, safe and reliable, and simple structure, rationally distributed divide-shut brake mechanism.

In order to achieve the purpose, the utility model discloses an on-off brake mechanism for circuit breaker, including electric operating mechanism, electric operating mechanism include motor, gear train, clutch pulley, this on-off brake mechanism still includes the shell frame, is used for pulling the handle arm-tie of external circuit breaker upper handle, is used for driving the linkage of handle arm-tie activity, the shell frame include the gear chamber that is used for the gear train to place, be used for the handle arm-tie to drive the handle guide chute that slides back and forth at the stage of on-off brake of the handle;

the linkage part comprises two racks which are arranged in parallel, a clutch wheel is arranged between the two racks, the clutch wheel is meshed with the two racks, and the clutch wheel and the two racks are meshed to form a structure for driving a handle on an external circuit breaker to perform opening and closing actions through the meshing action of the clutch wheel and the two racks;

and the gear set is in linkage connection with the clutch wheel through an output shaft of the gear set, and an input shaft of the motor is connected with an input end of the gear set.

The utility model has the advantages that: through including the chassis with the divide-shut brake mechanism that will be used for on the circuit breaker, electric operating mechanism, handle arm-tie and linkage, wherein set the handle arm-tie into available drive handle and carry out the divide-shut brake action, and the handle arm-tie then drives through the linkage, and the linkage has still related to the clutch pulley during operation and has been used for the rack of branch break-make power conduction to the linkage on, and clutch pulley self then links with the gear train, and the gear train then is connected with the motor, simultaneously the utility model discloses a chassis can be used to the gear train, electric operating mechanism's such as clutch pulley a plurality of subassemblies reliably set up, has made from this the utility model relates to a chassis, handle arm-tie and linkage, can realize integrating the electric operating mechanism who traditionally is used on the circuit breaker, realize promptly carrying out the modularization with electric operating mechanism, and then realized when needing to carry out the auto-reclosing function setting on the circuit breaker on the moulded case, can be through installing this modular structure on the circuit breaker additional, can accomplish the setting of auto-close circuit breaker auto-close function to the circuit breaker in traditional auto-close circuit breaker and can realize that the setting of the circuit breaker is reasonable design for the traditional auto-close brake function of the moulded case, and can realize that the simple and can realize that the installation of this modular structure and can obtain the simple and that the plastic case installation of this moulded case can be installed in the installation structure, and can be used for the circuit breaker.

The utility model is further arranged that the handle pulling plate is limited on the linkage piece, and a handle limiting groove for accommodating the handle is arranged on the handle pulling plate, the gear cavity is distributed below the linkage piece, and a linkage piece moving groove which is arranged in parallel with the rack is arranged in the output shaft area of the relative gear set on the linkage piece;

the output shaft penetrates through the linkage piece movable groove to be connected with the lower end face of the clutch wheel in a linkage mode, in the switching-off and switching-on stage of the circuit breaker, the linkage piece penetrates through the linkage piece movable groove to slide along the output shaft in a reciprocating mode, the upper end face of the clutch wheel forms a manual tool inserting position, and the manual tool inserting position and a manual tool inserting hole preset in an external circuit breaker upper cover are arranged in a facing mode.

Through the arrangement, the handle pull plate can reliably drive the handle to perform switching-on and switching-off actions, and meanwhile, the gear set can be reliably arranged in the shell frame, so that the situation that the linkage with a clutch wheel is interfered due to unreasonable arrangement is avoided, or the shell frame is overlarge in size is caused, and the linkage piece can reliably move with the handle pull plate under the action of the movable groove of the linkage piece when the driving handle performs switching-on and switching-off actions.

The utility model discloses further set up to the shell frame including cap and shell seat, cap one side towards the upper cover of external circuit breaker, opposite side and shell seat adaptation, the motor spacing for keeping away from one side of cap on the shell seat, through cap and shell seat cooperation, form between the two the gear chamber, linkage horizontal between upper cover and the cap.

Through the arrangement, the electric operating mechanism can be reliably arranged in the switching-on/off mechanism, and the electric operating mechanism can be reliably arranged in a modularized mode.

The utility model discloses further set up to the linkage and include linkage transmission district and handle linkage district, the linkage transmission district distribute in one side in handle linkage district, two racks distribute in linkage transmission district in, the linkage pass through handle linkage district drive handle arm-tie activity.

Through the arrangement, the reclosing molded case circuit breaker is ensured to be reliably operated, and the manual mode is prevented from being touched by mistake or other accidents are avoided.

The utility model discloses further set up as the handle linkage district including set up arm-tie screens groove and arm-tie fixed intercommunicating pore on the handle linkage district, the handle arm-tie includes arm-tie built-in end and arm-tie pressfitting end, the arm-tie built-in end includes arm-tie extension portion and arm-tie position portion, the arm-tie built-in end pass through arm-tie extension portion and arm-tie pressfitting end and be connected, arm-tie screens portion connect in the side of arm-tie extension portion, this arm-tie position portion and extend in the edge of arm-tie pressfitting end, handle spacing groove run through the arm-tie pressfitting end and the arm-tie extension portion of arm-tie built-in end respectively, the arm-tie pressfitting end on offer the arm-tie fixed orifices for the coaxial line position of the arm-tie fixed orifices of linkage piece;

the handle pulling plate is rotated and longitudinally placed into the pulling plate clamping groove, the handle pulling plate is rotated to be in contact with the linkage piece through the back face of the pressing end of the pulling plate, the pulling plate clamping portion of the handle pulling plate is in contact with the back face of the linkage piece, the handle pulling plate penetrates through the preset fastener, the pulling plate fixing communication hole is limited on the pulling plate fixing hole, the handle pulling plate and the linkage piece are integrally fixed, and the linkage piece is driven to reliably drive the handle pulling plate.

Through the arrangement, the handle pulling plate and the linkage piece can be reliably matched, and the opening and closing actions can be reliably executed.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

Fig. 3 is an exploded view of the handle pulling plate and the linkage member according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a linkage according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1-4, the specific embodiment of the present invention is an opening and closing mechanism for a circuit breaker, including an electric operating mechanism, the electric operating mechanism includes a motor 5, a gear set 4, and a clutch wheel 6, the opening and closing mechanism further includes a housing 3, a handle pulling plate 1 for pulling an external upper handle of the circuit breaker, and a linkage member 2 for driving the handle pulling plate 1 to move, the housing 3 includes a gear cavity c for placing the gear set 4, and a sliding guide slot b for the handle pulling plate 1 to slide back and forth in the stage of driving the handle to open and close;

the linkage part 2 comprises two racks 222 which are arranged in parallel, the clutch wheel 6 is placed between the two racks 222, the clutch wheel 6 is meshed with the two racks 222, and the clutch wheel 6 and the two racks 222 are meshed to form a handle for driving an external circuit breaker to perform opening and closing actions;

and the gear set 4 is in linkage connection with the clutch wheel 6 through an output shaft 41 of the gear set 4, and an input shaft of the motor 5 is connected with an input end of the gear set 4.

The aforesaid includes housing 3 through the divide-shut brake mechanism that will be used for on the circuit breaker, electric operating mechanism, handle arm-tie 1 and linkage 2, wherein set handle arm-tie 1 to available actuating handle execution divide-shut brake action, and handle arm-tie 1 then drives through linkage 2, and linkage 2 has still involved 6 during operations of clutch pulley and is used for the rack 222 of divide-shut brake power conduction to linkage 2, and clutch pulley 6 self then links with gear train 4, and gear train 4 then is connected with motor 5, simultaneously the utility model discloses a housing 3 can be used to gear train 4, a plurality of subassemblies of electric operating mechanism such as clutch pulley 6 reliably set up, made from this the utility model relates to a housing 3, handle arm-tie 1 and linkage 2, can realize using the electric operating mechanism on the circuit breaker traditionally to integrate, realize carrying out the modularization with electric operating mechanism promptly, and then realized carrying out the automatic reclosing function when needing to carry out on the circuit breaker, can be through installing this modular structure on the circuit breaker additional, the circuit breaker is similar to the traditional automatic reclosing circuit breaker and can realize that this moulded case cover is reliably compared to the simple plastic case installation mode that the installation function is simplified and the plastic case installation can be realized that this moulded case structure greatly, and the circuit breaker.

The handle pulling plate 1 is limited on the linkage part 2, a handle limiting groove a for accommodating a handle is formed in the handle pulling plate 1, the gear cavity c is distributed below the linkage part 2, and a linkage part moving groove 221 which is parallel to the rack 222 is formed in the linkage part 2 and is opposite to the output shaft 41 region of the gear set 4;

the output shaft 41 penetrates through the linkage piece movable groove 221 to be in linkage connection with the lower end face of the clutch wheel 6, in the switching-off and switching-on stages of the circuit breaker, the linkage piece 2 slides back and forth along the output shaft 41 through the linkage piece movable groove 221, a manual tool insertion position 61 is formed on the upper end face of the clutch wheel 6, and the manual tool insertion position 61 is arranged opposite to a manual tool insertion hole preset in an upper cover of an external circuit breaker.

As shown in fig. 1-2, the housing frame 3 includes a housing cover 31 and a housing seat 32, one side of the housing cover 31 faces the upper cover of the external circuit breaker, the other side of the housing cover is adapted to the housing seat 32, the motor 5 is limited on the housing seat 32 and relatively far away from one side of the housing cover 31, the housing cover 31 is matched with the housing seat 32, a gear cavity c is formed between the housing cover 31 and the housing seat, and the linkage member 2 is transversely disposed between the upper cover and the housing cover 31.

As shown in fig. 1 to 4, the linkage member 2 includes a linkage member transmission area 22 and a handle linkage area 21, the linkage member transmission area 22 is disposed at one side of the handle linkage area 21, two racks 222 are disposed in the linkage member transmission area 22, and the linkage member 2 drives the handle pulling plate 1 to move through the handle linkage area 21.

As shown in fig. 2-4, the handle linkage area 21 includes a pulling plate clamping groove 212 and a pulling plate fixing communication hole 221 formed on the handle linkage area 21, the handle pulling plate 1 includes a pulling plate placing end 11 and a pulling plate pressing end 12, the pulling plate placing end 11 includes a pulling plate extending portion 112 and a pulling plate clamping portion 111, the pulling plate placing end 11 is connected to the pulling plate pressing end 12 through the pulling plate extending portion 112, the pulling plate clamping portion 111 is connected to a side edge of the pulling plate extending portion 112, the pulling plate clamping portion 111 extends from an edge of the pulling plate pressing end 12, a handle limiting groove a respectively penetrates through the pulling plate pressing end 12 and the pulling plate extending portion 112 of the pulling plate placing end 11, and a pulling plate fixing hole 13 is formed on the pulling plate pressing end 12 at a position coaxial with the pulling plate fixing hole 13 of the linkage element 2;

the handle pulling plate 1 is longitudinally placed in the pulling plate clamping groove 212 through rotation, the handle pulling plate 1 is rotated to be in contact with the linkage piece 2 through the back surface of the pulling plate pressing end 12, the pulling plate clamping part 111 of the handle pulling plate 1 is in contact with the back surface of the linkage piece 2, a preset fastener penetrates through the pulling plate fixing communication hole 221 and is limited on the pulling plate fixing hole 13, the handle pulling plate 1 and the linkage piece 2 are integrally fixed, and the linkage piece 2 can be driven reliably to the handle pulling plate 1.

Claims

1. The utility model provides a divide-shut brake mechanism for circuit breaker, includes electric operating mechanism, electric operating mechanism include motor, gear train, clutch pulley, its characterized in that: the opening and closing mechanism further comprises a shell frame, a handle pulling plate and a linkage piece, wherein the handle pulling plate is used for pulling a handle on an external circuit breaker, and the linkage piece is used for driving the handle pulling plate to move;

the linkage part comprises two parallel racks, the clutch wheel is arranged between the two racks and meshed with the two racks, and the clutch wheel and the two racks are meshed to form a handle driving an external circuit breaker to perform opening and closing actions through the meshing action of the clutch wheel and the two racks;

2. The opening/closing mechanism for a circuit breaker according to claim 1, characterized in that: the handle pulling plate is limited on the linkage piece, a handle limiting groove for accommodating the handle is formed in the handle pulling plate, the gear cavity is distributed below the linkage piece, and a linkage piece moving groove which is parallel to the rack is formed in the linkage piece relative to the output shaft area of the gear set;

3. The opening/closing mechanism for a circuit breaker according to claim 1 or 2, characterized in that: the shell frame include cap and shell seat, cap one side towards the upper cover of external circuit breaker, opposite side and shell seat adaptation, the motor spacing for keeping away from one side of cap on the shell seat, through cap and shell seat cooperation, form between the two the gear chamber, the linkage piece is transversely arranged in between upper cover and the cap.

4. The opening/closing mechanism for a circuit breaker according to claim 1 or 2, characterized in that: the linkage piece comprises a linkage piece transmission area and a handle linkage area, the linkage piece transmission area is distributed on one side of the handle linkage area, the two racks are distributed in the linkage piece transmission area, and the linkage piece drives the handle pulling plate to move through the handle linkage area.

5. The opening/closing mechanism for a circuit breaker according to claim 4, characterized in that: the handle linkage area comprises a pull plate clamping groove and a pull plate fixing communication hole which are formed in the handle linkage area, the handle pull plate comprises a pull plate placing end and a pull plate pressing end, the pull plate placing end comprises a pull plate extending portion and a pull plate clamping portion, the pull plate placing end is connected with the pull plate pressing end through the pull plate extending portion, the pull plate clamping portion is connected to the side edge of the pull plate extending portion, the pull plate clamping portion extends out of the edge of the pull plate pressing end, a handle limiting groove penetrates through the pull plate pressing end and the pull plate extending portion of the pull plate placing end respectively, and a pull plate fixing hole is formed in the pull plate pressing end in a coaxial position relative to a pull plate fixing hole of the linkage piece;