CN209929210U

CN209929210U - Sulfur hexafluoride circuit breaker

Info

Publication number: CN209929210U
Application number: CN201920767820.1U
Authority: CN
Inventors: 王冠然
Original assignee: Nanjing Puri Electric Power Technology Co Ltd
Current assignee: Nanjing Puri Electric Power Technology Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-01-10
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to a sulfur hexafluoride circuit breaker, including box and a plurality of sword pillar that touches that sets up in pairs on the box, touch sword pillar top swivelling joint and connect and touch the sword, swivelling joint has the axis perpendicular to with touching the actuating lever of sword pillar axis place vertical face on the box, there is the transfer line along actuating lever radial fixation on the actuating lever, the transfer line corresponds to connect and touches sword setting and swivelling joint on the free end and has the connecting rod, the other end of connecting rod with connect the middle part swivelling joint who touches the sword, be provided with the fixed gear on the actuating lever, it is connected with the ring gear to slide along the actuating lever axial on the box, the ring gear corresponds the fixed gear setting, be provided. The rotary driving rod drives the connecting contact knives to be mutually abutted, the inner gear ring is controlled to slide towards the fixed gear through the fixing device, the inner gear ring is meshed with the fixed gear to prevent the fixed gear and the driving rod from rotating, and the condition that the circuit is connected or disconnected due to the rotation of the driving rod under the action of external force is not stable.

Description

Sulfur hexafluoride circuit breaker

Technical Field

The utility model belongs to the technical field of power equipment's technique and specifically relates to a sulfur hexafluoride circuit breaker is related to.

Background

The existing sulfur hexafluoride circuit breaker is non-oiled switching equipment which uses SF6 gas as an insulating medium and an arc extinguishing medium, the insulating property and the arc extinguishing property of the existing sulfur hexafluoride circuit breaker are greatly higher than those of an oil circuit breaker, and the existing sulfur hexafluoride circuit breaker is mainly applied to voltage levels above 110 kV.

The prior utility model patent document with the publication number of CN205177691U discloses an outdoor sulfur hexafluoride circuit breaker, which comprises a box body, and a fixed pillar and a contact knife pillar which are arranged on the box body, wherein the box body is rotatably connected with a transmission rod, the transmission rod is horizontally arranged, the fixed pillar is rotatably connected with a first contact knife, the contact knife pillar is rotatably connected with a second contact knife corresponding to the first contact knife, the transmission rod is provided with a fixed rod along the radial direction of the transmission rod, the transmission rod is connected with the middle part of the fixed rod, the first contact knife is rotatably connected with a first connecting rod, the second contact knife is rotatably connected with a second connecting rod, the other end of the first connecting rod and the other end of the second connecting rod are respectively rotatably connected with two ends of the fixed rod, a user drives the fixed rod to rotate through the rotation of the transmission rod, so that the first connecting rod and the second connecting rod are away from each other and move in an arc shape, so that the first contact knife, the contact knife moving stroke during connection is effectively reduced, the required operation space during circuit closing or breaking is reduced, equipment or electric wires outside the circuit breaker are prevented from being touched by the contact knife, and safety protection performance is high.

The circuit breaker comprises a fixed support, a first contact, a second contact, a transmission rod, a first contact, a second contact and a circuit breaker.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sulfur hexafluoride circuit breaker can stabilize closed or connecting circuit.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a sulfur hexafluoride circuit breaker, includes the box and a plurality of touch sword pillar that set up on the box in pairs, still includes the fixed stay who sets up on the box, touch sword pillar top swivelling joint and touch the sword, swivelling joint has the axis perpendicular to with touching the actuating lever of sword pillar axis place vertical face on the box, radially be fixed with the transfer line along the actuating lever on the actuating lever, the transfer line corresponds to connect and touches sword setting and swivelling joint has the connecting rod on the free end, the other end of connecting rod with connect the middle part swivelling joint who touches the sword, be provided with the fixed gear on the actuating lever, it is connected with the ring gear to slide along the actuating lever axial on the box, the ring gear corresponds the fixed gear setting, be provided with the fixing device who is used for controlling the.

Through adopting above-mentioned technical scheme, the user keeps away from the fixed gear through fixing device control ring gear and slides, and the rotatory actuating lever drives to connect through transfer line and connecting rod and touches the mutual butt of sword, and then slides towards the fixed gear through fixing device control ring gear, and the meshing through ring gear and fixed gear prevents that the fixed gear is rotatory, and then realizes the rotatory fixed of actuating lever, effectively prevents under the exogenic action that the actuating lever is rotatory and then leads to the unstable state of circuit intercommunication or disconnection.

The utility model discloses further set up to: the fixing device comprises an elastic piece which is arranged on the box body and used for guaranteeing the meshing of the inner gear ring and the fixed gear under a normal state, a magnetic sheet is arranged on the end face of the inner gear ring, an electromagnetic ring is arranged on the box body and corresponds to the magnetic sheet, the electromagnetic ring and the inner gear ring are coaxial, the inner gear ring slides away from the electromagnetic ring when the electromagnetic ring is electrified, and the inner gear ring is not meshed with the fixed gear.

By adopting the technical scheme, a user energizes the electromagnetic ring and then drives the inner gear ring to move away from the fixed gear ring and slide through repulsion of the electromagnetic ring and the magnetic sheet, the electromagnetic ring is powered off after the driving rod is normally rotated, the inner gear ring moves towards the fixed gear ring and is meshed with the fixed gear ring under the driving of the elastic force of the elastic piece, the control effect is good, and the operation is easy.

The utility model discloses further set up to: the edge swivelling joint of actuating lever terminal surface has the dwang, the terminal surface of the rotatory face perpendicular to actuating lever of dwang, be provided with on the terminal surface of actuating lever and supply the dwang to rotate to holding the groove of accomodating of dwang when being on a parallel with the actuating lever is radial, it is provided with in the inslot to accomodate and is used for fixing the storage part of accomodating the inslot with the actuating lever.

Through adopting above-mentioned technical scheme, the user is with the dwang back-out take in the groove, through to the afterburning rotatory actuating lever of dwang, resets the rotary rod then and fixes the actuating lever at taking in the inslot through taking in the part to reinforcing control actuating lever rotatory convenience and dwang are easily taken in, facilitate the use.

The utility model discloses further set up to: the accommodating part comprises elastic sheets arranged in the accommodating groove, and the number of the elastic sheets is two and the two elastic sheets are symmetrically arranged on two sides of the accommodating groove.

Through adopting above-mentioned technical scheme, packing force and frictional force between shell fragment and the dwang can be fixed the dwang in accomodating the groove steadily, and can realize automatic fixed, fixed convenience when the user accomodates the groove with the dwang embedding.

The utility model discloses further set up to: the driving rod is provided with a positioning hole along the radial direction of the driving rod, the box body is provided with a spring ball corresponding to the positioning hole, and the spring ball is abutted against the connecting contact knife in pair when being embedded with the positioning hole.

Through adopting above-mentioned technical scheme, the gomphosis of spring ball and locating hole can indicate the user not need excessively rotatory locating hole, guarantees to connect the butt area maximize that touches the sword, guarantees to connect stability.

The utility model discloses further set up to: the same pair of the connecting contact knife is provided with a connecting contact rod and a connecting contact piece on the opposite end parts, the connecting contact piece is in a U-shaped arrangement with an opening direction parallel to the radial direction of the driving rod, and the connecting contact piece is matched with the connecting contact rod in shape.

Through adopting above-mentioned technical scheme, connect the feeler lever gomphosis in even contact chip, effectively increased area of contact through two-sided butt, reinforcing circuit connection stability.

The utility model discloses further set up to: the rotary contact piece is fixed on the end face, close to the connecting contact knife, of the connecting contact knife, the rotary piece is in rotary connection with the connecting contact knife, the rotary face of the rotary piece is overlapped with the end face, connected with the contact knife, of the connecting contact knife, and a rotary part used for controlling the connecting contact piece to rotate is arranged on the connecting contact piece.

Through adopting above-mentioned technical scheme, the opening direction and the relative position who is connected the touching sword and is connected the contact of contact piece do not cooperate when the normal rotation of connecting the contact lever embedding connection contact piece, the user can be through rotary part will be connected the contact and rotate one hundred eighty degrees and the position of fixed connection contact piece, remove the trouble of tearing open the ann again from, more facilitate the use.

The utility model discloses further set up to: the rotary part comprises two positioning screw holes which are arranged on the end face of the free end of the contact knife and are symmetrically arranged on two sides of the contact knife, and the rotary piece is provided with positioning screws which penetrate through the rotary piece and are in threaded connection with the corresponding positioning screw holes.

Through adopting above-mentioned technical scheme, with set screw and the location screw threaded connection who corresponds behind the manual rotatory connection contact of user, realize connecting the fixed position who touches the sword, easy operation, it is fixed effectual.

To sum up, the utility model discloses a beneficial technological effect does:

1. the circuit is connected or short-circuited stably and is not easy to be interfered by external force;

2. the assembly production is convenient, even if not according to appointed assembly sequence assembly also can convenient fine setting.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a cross-sectional view of the present invention directed to a fixture structure.

Fig. 4 is a schematic structural view of the rotating member of the present invention.

In the figure, 1, a box body; 11. a contact knife support; 12. connecting a contact knife; 13. a transmission rod; 14. a connecting rod; 15. fixing a strut; 2. a drive rod; 21. fixing a gear; 22. an inner gear ring; 221. a magnetic sheet; 23. an elastic member; 24. an electromagnetic coil; 3. rotating the rod; 31. a receiving groove; 32. a spring plate; 4. positioning holes; 41. a spring ball; 5. connecting the feeler lever; 51. connecting a contact piece; 52. a rotating sheet; 53. positioning the screw hole; 54. and (5) positioning the screw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-4.

Referring to fig. 1 and 3, for the sulfur hexafluoride circuit breaker disclosed by the present invention, comprising a box body 1 and a plurality of contact knife supporting columns 11 arranged on the box body 1 in pairs, a fixed supporting column 15 is further arranged on the box body 1, the top of the contact knife supporting column 11 is rotatably connected with a connection contact knife 12, a driving rod 2 is horizontally arranged on the box body 1 below the connection contact knife 12, the driving rod 2 is rotatably connected with the box body 1, the rotating surface is coincident with the vertical surface where the axis of the contact knife supporting column 11 is located, the axis of the driving rod 2 is perpendicular to the vertical surface where the axis of the contact knife supporting column 11 is located, a driving rod 13 is radially fixed on the driving rod 2 along the driving rod 2, a connecting rod 14 is rotatably connected on the free end of the driving rod 13, the other end of the connecting rod 14 is rotatably connected with the middle part of the connection contact knife 12, a fixed gear 21, the shape of the inner gear ring 22 is matched with the fixed gear 21, and the box body 1 is provided with a fixing device for controlling the inner gear ring 22 to horizontally slide by a user.

The user rotates through controlling the driving rod 2, the driving rod 13 is driven to rotate, the two connecting rods 14 move along the arc in opposite directions, the two connecting contact knives 12 are driven to be close to or away from each other, the circuit is closed and disconnected through separation and butting of the connecting contact knives 12, when the circuit is closed or disconnected, the user drives the inner gear ring 22 to slide towards the fixed gear 21 through the fixing device, the fixed gear 21 is prevented from rotating through meshing of the inner gear ring 22 and the fixed gear 21, the rotating angle of the driving rod 2 is further fixed, the state change of the connecting contact knives 12 is avoided, and the stable working state of the circuit is guaranteed when the circuit is closed or connected through the sulfur hexafluoride circuit breaker.

Referring to fig. 1 and 3, the fixing device includes an elastic member 23 disposed on the box body 1, two guide rods slidably connected to the inner gear ring 22 are horizontally disposed on the box body 1, the elastic member 23 is a spring, one end of the spring abuts against the driving rod 2, and the other end of the spring is fixed to an end surface of the inner gear ring 22 to provide a driving elastic force for ensuring that the inner gear ring 22 slides to be engaged with the fixed gear 21 in a normal state, a magnetic sheet 221 is fixed to an end surface of the inner gear ring 22 close to the knife touching support 11, an electromagnetic coil 24 is disposed on the box body 1 corresponding to the magnetic sheet 221, the electromagnetic coil 24 is coaxial with the inner gear ring 22, and when the electromagnetic coil 24 is energized, a magnetic force repulsive to the magnetic sheet 221 is generated to provide a.

When a user needs to rotate the driving rod 2, the electromagnetic ring 24 is powered on, so that magnetic repulsion generated by the electromagnetic ring 24 drives the magnetic sheet 221 to drive the inner gear ring 22 to slide away from the electromagnetic ring 24 until the inner gear ring 22 and the fixed gear 21 are staggered in the axial direction and cannot be meshed, at the moment, the elastic part 23 is abutted against the driving rod 2 and is in a compression state, the driving rod 2 is rotated to a specified angle and the electromagnetic ring 24 is powered off, at the moment, the elastic force of the elastic part 23 drives the inner gear ring 22 to slide towards the fixed gear 21 to reset, so that the fixed gear 21 is meshed with the inner gear ring 22 in a normal state, the fixed gear 21 cannot rotate, the fixing of the driving rod 2 is realized, and the.

Referring to fig. 2, in order to facilitate the rotation of the driving rod 2 by the user, the edge of the end surface of the driving rod 2 is rotatably connected with a rotating rod 3, the rotating surface of the rotating rod 3 is perpendicular to the end surface of the driving rod 2, a containing groove 31 matched with the shape of the rotating rod 3 is formed in the end surface of the driving rod 2, the rotating rod 3 is embedded into the containing groove 31 when the rotating rod 3 rotates to the end surface of the driving rod 2 and the axis coincides with the end surface of the driving rod, and a fixing part is arranged in the containing groove 31 to fix the rotating. The accommodating part comprises two elastic sheets 32 fixed on the inner side walls of the accommodating groove 31, and the number of the elastic sheets 32 is two and the two elastic sheets are symmetrically arranged on the two inner side walls of the accommodating groove 31.

The user rotates dwang 3 when needs rotatory actuating lever 2, the terminal surface until 3 axis perpendicular to actuating lever 2 of dwang, snatch dwang 3 and rotatory afterburning, rotatory back counter-rotation dwang 3 is accomodate the groove 31 to dwang 3 embedding, shell fragment 32 and the extrusion of 3 butt of dwang this moment, through shell fragment 32 to the clamp force of dwang 3 and the frictional force between shell fragment 32 and the dwang 3 fix dwang 3 in accomodating groove 31, the realization can enough conveniently drive actuating lever 2 rotatoryly, can conveniently accomodate dwang 3 again, convenience in use is improved.

Referring to fig. 3, in order to facilitate the user to rotate the driving rod 2, the driving rod 2 can be accurately stopped rotating when being connected with the contact knife 12 for abutting, the driving rod 2 is provided with a positioning hole 4 along the radial direction of the driving rod 2, a spring ball 41 is arranged on the box body 1 corresponding to the positioning hole 4, the contact area of the spring ball 41 and the positioning hole 4 is the largest when being abutted with each other by the pair of the contact knives 12, and no extrusion force is vertically generated, the user can clearly determine the rotation angle of the driving rod 2 by the positioning hole 4 and the spring ball 41 through the embedding, and the trouble of operating the driving rod 2 to rotate while observing the state of the connection.

Referring to fig. 4, in order to ensure the contact area of two connecting contact knives 12, the opposite ends of the connecting contact knives 12 of the same pair are respectively provided with a connecting contact rod 5 and a connecting contact piece 51, the connecting contact rod 5 is a rectangular rod with a round angle, the connecting contact piece 51 is a U-shaped arrangement with an opening direction parallel to the radial direction of the driving rod 2, when the connecting contact knives 12 of the same pair are flush, the connecting contact rod 5 is embedded into the corresponding connecting contact piece 51, the contact area is increased through double-sided contact, and the connection stability is ensured.

Referring to fig. 4, since the connection contact piece 51 is U-shaped, when the connection contact piece 51 is mounted, if the connection contact piece 12 fixed to the connection contact piece 51 is not higher than the corresponding connection contact piece 12, the connection contact piece 51 and the connection contact rod 5 cannot be engaged with each other because the opening of the connection contact piece 51 is not facing the connection contact rod 5 when in use, in order to facilitate the user's mounting, a rotation piece 52 is fixed to an end surface of the connection contact piece 51 close to the connection contact piece 12, the rotation piece 52 is rotatably connected to the connection contact piece 12, a rotation surface of the rotation piece 52 coincides with the end surface of the connection contact piece 12, the connection contact piece 12 is provided with a rotation member for the user to control the connection contact piece 51 to rotate, the rotation member includes two positioning screw holes 53 corresponding to the starting point and the ending point of one hundred eighty degrees of rotation of the connection contact piece 51, and the positioning screw 54 passing through the rotation piece 52 and threadedly connected to one of the positioning screw holes 53 is provided on the rotation piece 52 .

The user installs behind connecting feeler lever 5 and the connection contact 51 according to the relative position of connecting feeler lever 5 and connection contact 51 respectively, and manual rotation connects contact 51 to through the position of the screw-thread engagement fixed connection contact 51 of set screw 54 with the location screw 53 that corresponds, make the opening orientation of connection contact 51 and the position looks adaptation of being connected feeler lever 5, more easy to assemble and fine setting remove the trouble that must make up according to appointed order from.

The implementation principle of the embodiment is as follows: the user makes the electromagnetic ring 24 produce the magnetic force that repels with magnetic sheet 221 through circular telegram to electromagnetic ring 24, drive ring gear 22 keeps away from fixed gear 21 and slides, and then rotatory actuating lever 2 and connection contact 51 and connection feeler lever 5 gomphosis, spring ball 41 and locating hole 4 gomphosis suggestion user need not excessively rotate actuating lever 2 in order to avoid connecting feeler lever 5 and connection contact 51 damage this moment, outage electromagnetic ring 24, elastic member 23's elasticity drive ring gear 22 slides towards fixed gear 21, the meshing through ring gear 22 and fixed gear 21 prevents fixed gear 21 rotatory, realize that the rotation angle of actuating lever 2 is fixed from russian days, fixed effectual and prevent effectively that external force from causing the connection unstability of connecting contact 5 and connection contact 51, effectively guarantee the stability of circuit intercommunication or short circuit state.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sulfur hexafluoride circuit breaker, includes box (1) and a plurality of set up in pairs on box (1) touch sword pillar (11), still including setting up fixed stay (15) on box (1), touch sword pillar (11) top swivelling joint and connect and touch sword (12), its characterized in that: the novel gear box is characterized in that a driving rod (2) with an axis perpendicular to the vertical surface of the axis of the same pair of contact knife supporting columns (11) is rotatably connected to the box body (1), a transmission rod (13) is radially fixed to the driving rod (2) on the driving rod (2), the transmission rod (13) is correspondingly connected with the contact knife (12) and is rotatably connected with a connecting rod (14) at the free end, the other end of the connecting rod (14) is rotatably connected with the middle of the contact knife (12), a fixed gear (21) is arranged on the driving rod (2), an inner gear ring (22) is connected to the box body (1) in a sliding mode along the axial direction of the driving rod (2), the inner gear ring (22) is arranged corresponding to the fixed gear (21), and a fixing device used for controlling the sliding of the inner gear.

2. A sulphur hexafluoride circuit breaker as claimed in claim 1, wherein: the fixing device comprises an elastic piece (23) which is arranged on the box body (1) and used for guaranteeing the meshing of the inner gear ring (22) and the fixed gear (21) under a normal state, a magnetic sheet (221) is arranged on the end face of the inner gear ring (22), an electromagnetic ring (24) is arranged on the box body (1) corresponding to the magnetic sheet (221), the electromagnetic ring (24) and the inner gear ring (22) are coaxial, the inner gear ring (22) is far away from the electromagnetic ring (24) to slide when the electromagnetic ring (24) is electrified, and the inner gear ring (22) is not meshed with the fixed gear (21).

3. A sulphur hexafluoride circuit breaker as claimed in claim 2, wherein: the edge swivelling joint of actuating lever (2) terminal surface has dwang (3), the terminal surface of the rotatory face perpendicular to actuating lever (2) of dwang (3), be provided with on the terminal surface of actuating lever (2) and supply dwang (3) to rotate to holding groove (31) of accomodating of dwang (3) when being on a parallel with actuating lever (2) are radial, it is used for fixing the storage part in accomodating groove (31) with actuating lever (2) to be provided with in groove (31) to accomodate.

4. A sulphur hexafluoride circuit breaker as claimed in claim 3, wherein: the accommodating component comprises elastic sheets (32) arranged in the accommodating groove (31), and the number of the elastic sheets (32) is two and the two elastic sheets are symmetrically arranged on two sides of the accommodating groove (31).

5. A sulphur hexafluoride circuit breaker as claimed in claim 4, wherein: the automatic cutter driving device is characterized in that a positioning hole (4) is formed in the driving rod (2) in the radial direction along the driving rod (2), a spring ball (41) is arranged on the box body (1) corresponding to the positioning hole (4), and the spring ball (41) is abutted to the connecting contact cutter (12) in pair when being embedded with the positioning hole (4).

6. A sulphur hexafluoride circuit breaker as claimed in claim 1 or claim 5, wherein: the same pair of the connecting contact knives (12) are provided with a connecting contact rod (5) and a connecting contact piece (51) at the opposite end parts respectively, the connecting contact piece (51) is in a U-shaped arrangement with the opening direction parallel to the radial direction of the driving rod (2), and the connecting contact piece (51) is matched with the connecting contact rod (5) in shape.

7. A sulphur hexafluoride circuit breaker as claimed in claim 6, wherein: the rotary contact piece (52) is fixed on the end face, close to the connecting contact knife (12), of the connecting contact piece (51), the rotary piece (52) is in rotary connection with the connecting contact knife (12), the rotary surface of the rotary piece (52) is overlapped with the end face of the connecting contact knife (12), and a rotary component used for controlling the connecting contact piece (51) to rotate is arranged on the connecting contact piece (51).

8. A sulphur hexafluoride circuit breaker as claimed in claim 7, wherein: the rotating part comprises two positioning screw holes (53) which are formed in the end face of the free end of the connecting contact knife (12), the two positioning screw holes (53) are symmetrically formed in the two sides of the connecting contact knife (12), and the rotating piece (52) is provided with positioning screws (54) which penetrate through the rotating piece (52) and are in threaded connection with the corresponding positioning screw holes (53).