CN213424883U

CN213424883U - Circuit breaker operating mechanism

Info

Publication number: CN213424883U
Application number: CN202022899653.1U
Authority: CN
Inventors: 赵永和; 凌泽建
Original assignee: Zhejiang Juli Electrical Co ltd
Current assignee: Zhejiang Juli Electrical Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-06-11
Anticipated expiration: 2030-12-04

Abstract

The utility model provides a circuit breaker operating device, include: the circuit breaker switching-off and switching-on state detection device comprises a manual operating mechanism and an electric operating mechanism, wherein the manual operating mechanism is provided with an initial position, a first position and a second position which respectively correspond to the switching-off and switching-on states of the circuit breaker; the detection piece is connected with the control system and is suitable for detecting the position information of the manual operation mechanism and transmitting the position information to the control system; and the control system is connected with the electric operating mechanism, and when the manual operating mechanism is switched between the initial position and the first position, the control system correspondingly controls the electric operating mechanism to be in an unlocking state and a locking state respectively. That is, when manual separating brake, control system control electric operating mechanism is in the shutting state to the long-range reclosing function of shutting, when overhauing the completion, when making manual operating mechanism reply to initial position from the primary importance, control system control electric operating mechanism is in the unblock state, thereby resumes long-range reclosing, like this to field maintenance personnel, the security performance is higher.

Description

Circuit breaker operating mechanism

Technical Field

The utility model relates to a vacuum circuit breaker technical field, concretely relates to circuit breaker operating device.

Background

The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating current system and is used for protecting and controlling electrical equipment, and most of the vacuum circuit breakers realize opening and closing through a spring operating mechanism.

The spring operating mechanism comprises an electric operating mechanism and a manual operating mechanism, when the spring operating mechanism is overhauled on site, a maintainer drives the breaker to open a brake through an operating handle, however, under the condition of manual opening, misoperation can occur, and the remote control electric operating mechanism is used for realizing closing, so that the personal safety of the field maintainer can be greatly influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the circuit breaker among the prior art under the condition of manual separating brake, accessible remote control electric operating mechanism realizes closing a floodgate, influences the defect of on-the-spot maintenance personnel safety to a circuit breaker operating mechanism that security performance is high is provided.

Therefore, the utility model provides a circuit breaker operating mechanism, which comprises a manual operating mechanism and an electric operating mechanism, which are arranged on a mechanism body, wherein the manual operating mechanism is provided with an initial position, a first position and a second position which respectively correspond to the opening and closing states of the circuit breaker; the detection piece is connected with the control system and is suitable for detecting the position information of the manual operation mechanism and transmitting the position information to the control system; and the control system is connected with the electric operating mechanism, and when the manual operating mechanism is switched between the initial position and the first position, the control system correspondingly controls the electric operating mechanism to be in an unlocking state and a locking state respectively.

The manual operating mechanism comprises a switching-on and switching-off handle and a transmission assembly, and the switching-on and switching-off handle is arranged on the operating shaft; and the transmission assembly is connected with the opening and closing handle and the opening shaft, is driven by the opening and closing handle and drives the breaker to open the brake through the opening shaft.

The detection piece is suitable for detecting the position information of the opening and closing handle or the transmission assembly.

The transmission assembly comprises a first transmission piece and a second transmission piece, the first transmission piece is fixedly arranged on the operating shaft, a stirring piece is arranged at one end of the first transmission piece, which is far away from the operating shaft, and the extending direction of the stirring piece is parallel to the operating shaft; the second transmission part is rotatably arranged on the mechanism body and is provided with an open slot for the insertion of the toggle part and linkage fit with the toggle part and a driving arm capable of driving the brake separating shaft to act.

The detection piece is a travel switch, the travel switch is arranged on the running track of the second transmission piece, is driven by the second transmission piece to change the switch state, and transmits an action signal to the control system.

Further comprising a locking structure adapted to lock the position of the second transmission, the locking structure comprising: the positioning block is abutted against the second transmission piece; the first biasing member is arranged in the barrel, one end of the first biasing member abuts against the positioning block, the other end of the first biasing member abuts against the bottom wall of the barrel, and the first biasing member applies a biasing force to the positioning block to move towards the second transmission piece; the first matching surface and the second matching surface are arranged on the second transmission piece, the two matching surfaces extend from the same joint to two sides, an included angle a is formed between the two matching surfaces, the angle of the included angle a is larger than 0 degree and smaller than 180 degrees, and the positioning block can respectively abut against the first matching surface and the second matching surface.

The transmission assembly further includes: the third transmission part comprises a first fixed plate connected with the brake separating shaft and a rotating plate which is connected with the first fixed plate in a bending way and can be driven by the driving arm; the second fixing plate is vertically arranged on the brake separating shaft; and one end of the second biasing part is abutted against the mechanism body, and the other end of the second biasing part is abutted against the second fixing plate.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a circuit breaker operating device, including manual operating device, electric operating device, detection piece and control system, when the field maintenance personnel drive manual operating device from the initial position towards the action of first position direction, also be when manual separating brake, control system controls electric operating device to be in the shutting state according to the change of the manual operating device position information that detection piece detected to block long-range reclosing function; after the maintenance personnel finish the maintenance, when the manual operation mechanism is driven to return to the initial position from the first position, the control system controls the electric operation mechanism to be in an unlocking state, so that the remote reclosing function can be performed, and the safety performance is higher for field maintenance personnel.

2. The utility model provides a circuit breaker operating device detects the piece and is travel switch, and travel switch locates on the orbit of second driving medium, and it receives second driving medium drive to change on-off state to with action signal transmission to control system, control system controls electric operating device shutting/unblock according to on-off state.

3. When the manual operating mechanism is at the initial position, the first matching surface of the second transmission part is matched and locked with the positioning block; when the manual operating mechanism rotates to the first position from the initial position, the second transmission piece rotates clockwise until the second matching surface of the second transmission piece is matched and locked with the positioning block. Because the second transmission member can be locked by the positioning block, the position of the second transmission member can be changed only by field maintenance personnel by driving the opening and closing handle, thereby ensuring the safety of the field maintenance personnel.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a circuit breaker operating mechanism of the present invention;

FIG. 2 is a schematic structural view of the part of FIG. 1 with the opening and closing handle removed;

FIG. 3 is a perspective view of FIG. 2 with the operating shaft, the first transmission member and the toggle member removed;

FIG. 4 is a perspective view of the toggle member, the second transmission member and the locking structure;

fig. 5 is a cross-sectional view of the locking structure.

Description of reference numerals: 1. a detection member; 2. a switching-on and switching-off handle; 3. an operating shaft; 31. a first transmission member; 32. a toggle piece; 4. a brake separating shaft; 5. a second transmission member; 51. an open slot; 52. a drive arm; 53. a first mating surface; 54. a second mating surface; 6. positioning blocks; 61. a first biasing member; 62. a barrel; 7. a third transmission member; 71. a first fixing plate; 72. a rotating plate; 73. a second fixing plate; 74. a second biasing member.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Examples

The present embodiment provides a circuit breaker operating mechanism, as shown in fig. 1, including a mechanism body, a manual operating mechanism, an electric operating mechanism, a detecting member 1, and a control system.

The manual operating mechanism and the electric operating mechanism are arranged on the mechanism body, the manual operating mechanism is provided with an initial position, a first position and a second position, the first position and the second position correspond to the opening and closing states of the circuit breaker respectively, and as shown in fig. 2-4, the manual operating mechanism comprises a switching-on and switching-off handle 2, a first transmission piece 31, a second transmission piece 5, a third transmission piece 7, a switching-off shaft 4 and a locking structure.

And the opening and closing handle 2 is installed on the operating shaft 3 and rotates in linkage with the operating shaft 3.

The first transmission piece 31 is fixedly arranged on the operation shaft 3, one end, far away from the operation shaft 3, of the first transmission piece 31 is provided with a toggle piece 32, and the extending direction of the toggle piece 32 is parallel to the operation shaft 3.

And the second transmission piece 5 is rotatably arranged on the mechanism body and is provided with an open slot 51 into which the toggle piece 32 can be inserted and matched with the same in a linkage manner, and a driving arm 52 capable of driving the brake separating shaft 4 to act.

The third transmission member 7 includes a first fixed plate 71 connected to the opening shaft 4, and a rotating plate 72 connected to the first fixed plate 71 and driven by the driving arm 52.

The brake separating shaft 4 is further fixedly provided with a second fixing plate 73 and a second biasing member 74, one end of the second biasing member abuts against the mechanism body, and the other end of the second biasing member abuts against the second fixing plate 73 and is used for driving the brake separating shaft 4 to reset.

A locking structure for locking the position of the second transmission member 5, as shown in fig. 5, which includes a positioning block 6 abutting against the second transmission member 5; a first biasing member 61 disposed in the cylinder 62, one end of which abuts against the positioning block 6 and the other end of which abuts against the bottom wall of the cylinder 62, the first biasing member 61 applying a biasing force to the positioning block 6 to move in the direction of the second transmission member 5; the first matching surface 53 and the second matching surface 54 are arranged on the second transmission member 5, the two matching surfaces extend from the same joint to two sides, an included angle a is formed between the two matching surfaces, the included angle a is larger than 0 degree and smaller than 180 degrees, and the positioning block 6 can respectively abut against the first matching surface 53 and the second matching surface 54. In this embodiment, the included angle a is an obtuse angle.

The detection part 1 is connected with a control system, and the detection part 1 is suitable for detecting the position information of the manual operation mechanism and transmitting the position information to the control system. In this embodiment, the detecting member 1 is a travel switch, and the travel switch is disposed on the moving track of the second transmission member 5, is driven by the second transmission member 5 to change a switch state, and transmits an action signal to the control system.

And the control system is connected with the electric operating mechanism, and when the manual operating mechanism is switched between the initial position and the first position, the control system correspondingly controls the electric operating mechanism to be in an unlocking state and a locking state respectively.

As a changeable embodiment, the detector 1 can detect the position information of the opening/closing handle 2, and when the detector 1 is a travel switch, the travel switch is arranged on the operation track of the opening/closing handle 2, is driven by the opening/closing handle 2 to change the switch state, and transmits an action signal to the control system.

As a changeable embodiment, the detecting member 1 may be a sensor capable of detecting a change in the position of the operating member, such as a proximity switch or a touch sensor.

The utility model provides a circuit breaker operating device's theory of operation as follows:

in the initial position, the opening and closing handle 2 is in a horizontal state, and the first matching surface 53 of the second transmission piece 5 is matched and locked with the positioning block 6.

During manual separating brake, an operator drives the opening and closing handle 2 to rotate anticlockwise, so that the first transmission part 31 and the poking part 32 drive the second transmission part 5 to rotate clockwise, the driving arm 52 of the second transmission part 5 is matched with the rotating plate 72, so that the third transmission part 7 drives the separating brake shaft 4 to separate brake, and the second matching surface 54 of the second transmission part 5 is matched and locked with the positioning block 6 in a separating brake state. In the process, the second transmission piece 5 drives the travel switch to change the switch state, the travel switch transmits the action signal to the control system, and the control system controls the electric operating mechanism to be locked according to the switch state, so that the remote reclosing function is locked.

When the maintenance is finished, an operator drives the opening and closing handle 2 to reset to a horizontal state, the second transmission piece 5 is separated from the travel switch, the travel switch transmits an action signal to the control system, and the control system controls the electric operating mechanism to unlock, so that the remote reclosing function is recovered.

The utility model provides a circuit breaker operating device, including manual operating device, electric operating device, detection piece 1 and control system, when the field maintenance personnel drive manual operating device from the initial position towards the action of first position direction, also when manual separating brake, control system controls electric operating device to be in the shutting state according to the change of the manual operating device position information that detection piece 1 detected, thus the long-range reclosing function of shutting; after the maintenance personnel finish the maintenance, when returning to the initial position from the first position through manual operation mechanism, control system control electric operating mechanism is in the unblock state to can carry out long-range reclosing function, like this, to on-the-spot maintenance personnel, the security performance is higher.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A circuit breaker operating mechanism, comprising:

the manual operating mechanism and the electric operating mechanism are arranged on the mechanism body, and the manual operating mechanism is provided with an initial position, a first position and a second position which respectively correspond to the opening and closing states of the breaker;

the detection piece (1) is connected with a control system, and the detection piece (1) is suitable for detecting the position information of the manual operation mechanism and transmitting the position information to the control system;

2. The circuit breaker operating mechanism of claim 1 wherein the manual operating mechanism comprises:

the opening and closing handle (2) is arranged on the operating shaft (3);

and the transmission component is connected with the opening and closing handle (2) and the opening shaft (4), and the transmission component is driven by the opening and closing handle (2) and drives the opening of the circuit breaker through the opening shaft (4).

3. Circuit breaker operating mechanism according to claim 2, characterized in that the detection means (1) are adapted to detect position information of the opening and closing handle (2) or of the transmission assembly.

4. The circuit breaker operating mechanism of claim 2 or 3 wherein the transmission assembly comprises:

the first transmission piece (31) is fixedly arranged on the operating shaft (3), one end, far away from the operating shaft (3), of the first transmission piece (31) is provided with a stirring piece (32), and the extending direction of the stirring piece (32) is parallel to the operating shaft (3);

and the second transmission piece (5) is rotatably arranged on the mechanism body and is provided with an open slot (51) into which the poking piece (32) can be inserted and is in linkage fit with the open slot, and a driving arm (52) capable of driving the brake separating shaft (4) to act.

5. The circuit breaker operating mechanism according to claim 4, wherein the detecting member (1) is a travel switch, and the travel switch is disposed on a travel track of the second transmission member (5), is driven by the second transmission member (5) to change a switch state, and transmits an actuating signal to the control system.

6. The circuit breaker operating mechanism of claim 5 further comprising a locking structure adapted to lock the position of the second transmission (5), the locking structure comprising:

the positioning block (6) is abutted against the second transmission piece (5);

a first biasing member (61) disposed in the cylinder (62) and having one end abutting against the positioning block (6) and the other end abutting against the bottom wall of the cylinder (62), the first biasing member (61) applying a biasing force to the positioning block (6) to move in the direction of the second transmission member (5);

the first matching surface (53) and the second matching surface (54) are arranged on the second transmission piece (5), the two matching surfaces extend from the same joint to two sides, an included angle a is formed between the two matching surfaces, the included angle a is larger than 0 degree and smaller than 180 degrees, and the positioning block (6) can respectively abut against the first matching surface (53) and the second matching surface (54).

7. The circuit breaker operating mechanism of claim 4 wherein the transmission assembly further comprises:

the third transmission piece (7) comprises a first fixing plate (71) connected with the brake separating shaft (4) and a rotating plate (72) which is connected with the first fixing plate (71) in a bending way and can be driven by the driving arm (52);

the second fixing plate (73) is vertically arranged on the brake separating shaft (4);

and a second biasing member (74) having one end abutting against the mechanism body and the other end abutting against the second fixing plate (73).