CN219642729U

CN219642729U - Combined high-voltage isolating switch

Info

Publication number: CN219642729U
Application number: CN202320607475.1U
Authority: CN
Inventors: 王建业; 陈新; 黄晶晶; 王桥鑫; 闫永祥
Original assignee: Henan Pengshi Electric Power Technology Co ltd
Current assignee: Henan Pengshi Electric Power Technology Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-09-05
Anticipated expiration: 2033-03-24

Abstract

The utility model discloses a combined high-voltage isolating switch, relates to the technical field of high-voltage isolating switches, and aims to solve the problems that a transmission mechanism of a common combined high-voltage isolating switch in the prior art adopts a push-pull rod for transmission, the fixing effect is not firm enough, and the closed contacts are easy to disconnect and are unreliable to use. The driving device is characterized in that a driving shaft is arranged above the driving box and is rotationally connected with the driving box through a bearing, a worm wheel is arranged at the lower end of the driving shaft and is fixedly connected with the driving shaft through a fastening screw, a worm is arranged in the driving box and is rotationally connected with the driving box through a bearing, the worm is connected with the worm wheel in a meshed mode, a motor is arranged in the driving box, a driving wheel is arranged on one side of the motor and is fixedly connected with the motor through a connecting shaft, a driven wheel is arranged on the outer side of the worm, and the driven wheel is rotationally connected with the driving wheel through a belt.

Description

Combined high-voltage isolating switch

Technical Field

The utility model relates to the technical field of high-voltage isolating switches, in particular to a combined high-voltage isolating switch.

Background

The high-voltage isolating switch is an important switching device in power plants and substation electrical systems, and is matched with a high-voltage circuit breaker. The isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 KV. The high-voltage device is switched on, off or switched on under a voltage-column load. The main functions are as follows: the safety of the high-voltage electric appliance and the device during maintenance work is ensured, the high-voltage electric appliance and the device play a role of isolating voltage, cannot be used for cutting off and throwing load current and cutting off and shorting current, and can only be used for certain switching operations without generating strong electric arcs, namely, the high-voltage electric appliance and the device have no arc extinguishing function; the method is divided into an indoor type and an outdoor type according to different installation places, and is divided into a single column type, a double column type and a three column type according to the number of insulating struts, and each voltage class is provided with optional equipment;

for example, the application publication number is CN204596695U, a combined high-voltage isolating switch is composed of a cross arm support, a longitudinal support and a three-phase linkage switch, wherein the three-phase linkage switch comprises a linkage shaft fixed on the cross arm support, an operating handle arranged in the middle of the linkage shaft, a pull rod insulator positioned below the longitudinal support and hinged with the linkage shaft through a crank, and an isolating disconnecting link positioned below the pull rod insulator, two ends of the isolating disconnecting link are arranged below the longitudinal support through disconnecting link insulators, one end of the isolating disconnecting link is connected with the disconnecting link insulator through a fixed contact, and the other end of the isolating disconnecting link is connected with the disconnecting link insulator through a moving contact; the fixed contact and the moving contact are connected with a cable through a wiring insulator, an anti-falling power-assisted spring device is arranged above the linkage shaft, arc extinguishing needles are arranged on the outer side of the moving contact, 2 operating handles are arranged, and one ends of the 2 operating handles are connected with the linkage shaft to form a V shape;

the application adopts a combined integrated three-phase linkage mode, has simpler and faster operation, effectively solves the problem that adjacent inter-phase arc light short circuits are easy to occur in single-pole switch operation, adopts an integrated combined design for the cross arm support, the longitudinal support and the three-phase linkage switch, greatly reduces the use amount of electric power fittings, reduces the operation time of installation and maintenance of workers, prevents the accidental falling of an isolation knife switch from occurring, simultaneously has the switching-on and switching-off boosting effect, reduces the operation resistance of an operation handle, realizes low-load electrified switching-on and switching-off operation for an arc extinguishing needle, adopts a push-pull rod for transmission for a transmission mechanism, has an insufficient fixing effect, ensures that the contacts after closing are easy to be disconnected, is unreliable to use, and is urgently needed to develop a combined high-voltage isolation switch in the market to help people solve the existing problem.

Disclosure of Invention

The utility model aims to provide a combined high-voltage isolating switch, which solves the problems that a transmission mechanism of a common combined high-voltage isolating switch provided in the background art adopts a push-pull rod for transmission, the fixing effect is not firm enough, and the closed contacts are easy to disconnect and are unreliable to use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-voltage isolation switch of combination, includes landing leg and drive box, the drive shaft is installed to the top of drive box, and the drive shaft passes through the bearing with the drive box and rotate to be connected, the worm wheel is installed to the lower extreme of drive shaft, and worm wheel and drive shaft pass through fastening screw fixed connection, the internally mounted of drive box has the worm, and the worm passes through the bearing with the drive box and rotate to be connected, the worm is connected with the worm wheel interlock.

Preferably, a motor is arranged in the driving box, a driving wheel is arranged on one side of the motor, the driving wheel is fixedly connected with the motor through a connecting shaft, a driven wheel is arranged on the outer side of the worm, and the driven wheel is rotationally connected with the driving wheel through a belt.

Preferably, an auxiliary switch device is arranged in the driving box and is electrically connected with the motor, a fixed rod is arranged on one side of the supporting leg, the fixed rod is fixedly connected with the supporting leg through a bolt, and the fixed rod is fixedly connected with the driving box through a bolt.

Preferably, a lifting frame is arranged above the supporting leg, the lifting frame is fixedly connected with the supporting leg through a bolt, a first supporting insulator is arranged above the lifting frame, and a fixed contact is arranged above the first supporting insulator.

Preferably, the bearing frame is installed to the inboard of bed hedgehopping frame, and the bearing frame passes through bolt fixed connection with the bed hedgehopping frame, the second supporting insulator is installed to the top of bearing frame, and the second supporting insulator passes through the bearing rotation with the bearing frame and be connected, fixed cassette is installed to the top of second supporting insulator.

Preferably, the inside of fixed cassette is installed electrically conductive plug-in strip, electrically conductive plug-in strip's outside is provided with the snap ring, and snap ring and electrically conductive plug-in strip set up to an organic whole structure, electrically conductive plug-in strip and static contact electric connection.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the arrangement of the worm and the worm wheel, the worm wheel is fixedly connected with the second support insulator through the fastening screw, and the worm is driven by the motor, so that the second support insulator is driven to rotate by utilizing the transmission of the worm and the worm wheel, the motor is efficiently decelerated through the characteristics of the worm and the worm wheel, and the worm can lock the worm wheel, so that the second support insulator can be firmly fixed, the combined high-voltage isolating switch transmission mechanism is firmer in operation, and the combined high-voltage isolating switch is safer and firmer in operation.

2. According to the utility model, three independent switches are arranged in parallel with the high-voltage isolating switch structure, and three groups of circuits can be connected at the same time, so that the combined high-voltage isolating switch is realized, the switching operation of different circuits is facilitated, meanwhile, the high-voltage isolating switch structure is applicable to different voltage circuits, the use functionality is improved, the use is convenient, the three groups of switch structures are arranged independently, any switch can be selected to be closed freely, and the high-voltage isolating switch is more convenient to use.

Drawings

FIG. 1 is a front view of a combined high voltage isolator of the present utility model;

FIG. 2 is a cross-sectional view of a single high voltage isolator of the present utility model;

FIG. 3 is a schematic view of the internal structure of the drive housing of the present utility model;

fig. 4 is a schematic diagram of an internal structure of the fixing clip seat of the present utility model.

In the figure: 1. a support leg; 2. a lifting frame; 3. a fixed rod; 4. a first support insulator; 5. a stationary contact; 6. a conductive blade; 7. a fixing clamping seat; 8. a second support insulator; 9. a bearing seat; 10. a drive box; 11. a motor; 12. a driving wheel; 13. a drive shaft; 14. a worm wheel; 15. a worm; 16. driven wheel; 17. an auxiliary switch; 18. and a clasp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a high-voltage isolation switch of combination, includes landing leg 1 and drive case 10, drive shaft 13 is installed to the top of drive case 10, and drive shaft 13 passes through the bearing rotation with drive case 10 to be connected, worm wheel 14 is installed to the lower extreme of drive shaft 13, and worm wheel 14 passes through fastening screw fixed connection with drive shaft 13, and drive case 10 internally mounted has worm 15, and worm 15 passes through the bearing rotation with drive case 10 to be connected, worm 15 and worm wheel 14 interlock are connected.

During the use, through worm 15 and worm wheel 14's setting, worm wheel 14 passes through fastening screw fixed connection with second support insulator 8, worm 15 passes through motor 11 drive, thereby utilize the transmission of worm 15 and worm wheel 14 to order about second support insulator 8 to rotate, through the characteristic of worm 15 and worm wheel 14, realize efficient speed reduction to motor 11, worm 15 can lock worm wheel 14 simultaneously, thereby make second support insulator 8 can be firmly fixed, make more firm when this combination formula high voltage isolator drive mechanism operates, make the high voltage isolator of this combination formula work get up safer firm.

Further, a motor 11 is installed in the driving box 10, a driving wheel 12 is installed on one side of the motor 11, the driving wheel 12 is fixedly connected with the motor 11 through a connecting shaft, a driven wheel 16 is installed on the outer side of a worm 15, the driven wheel 16 is rotatably connected with the driving wheel 12 through a belt, the motor 11 is fixedly connected with the driving box 10 through a fastening screw, and the driven wheel 16 is fixedly connected with the worm 15 through the fastening screw.

Further, an auxiliary switch 17 is mounted in the driving box 10, the auxiliary switch 17 is electrically connected with the motor 11, a fixing rod 3 is mounted on one side of the supporting leg 1, the fixing rod 3 is fixedly connected with the supporting leg 1 through a bolt, the fixing rod 3 is fixedly connected with the driving box 10 through a bolt, and the auxiliary switch 17 is fixedly connected with the driving box 10 through a fastening screw.

Further, the overhead frame 2 is installed to the top of landing leg 1, and overhead frame 2 passes through bolt fixed connection with landing leg 1, and first supporting insulator 4 is installed to the top of overhead frame 2, and fixed contact 5 is installed to the top of first supporting insulator 4, and first supporting insulator 4 passes through bolt fixed connection with overhead frame 2, and first supporting insulator 4 and fixed contact 5 all are provided with two, and fixed contact 5 passes through insulating screw fixed connection with first supporting insulator 4.

Further, the bearing frame 9 is installed to the inboard of backing up the frame 2, and bearing frame 9 and backing up the frame 2 and pass through bolt fixed connection, and the second support insulator 8 is installed to the top of bearing frame 9, and the second support insulator 8 passes through the bearing rotation with bearing frame 9 and is connected, and fixed cassette 7 is installed to the top of second support insulator 8, and fixed cassette 7 passes through insulating screw fixed connection with second support insulator 8, and the lower extreme and the drive shaft 13 of second support insulator 8 pass through fastening screw fixed connection.

Further, the inside of the fixed clamping seat 7 is provided with the conductive knife 6, the outside of the conductive knife 6 is provided with the snap ring 18, and the snap ring 18 and the conductive knife 6 are arranged as an integral structure, the conductive knife 6 is electrically connected with the fixed contacts 5, the conductive knife 6 is closed when contacting with the two fixed contacts 5, the fixed clamping seat 7 is divided into an upper structure and a lower structure, and the conductive knife 6 is fixed by being meshed with the snap ring 18.

Working principle: when the combined high-voltage isolating switch is used, the motor 11 is started, the motor 11 drives the driving wheel 12 to rotate, the driving wheel 12 drives the worm 15 to rotate through the driven wheel 16, the worm 15 drives the driving shaft 13 to rotate through the worm wheel 14, the driving shaft 13 drives the second supporting insulator 8 to rotate, the second supporting insulator 8 is fixed with the fixed clamping seat 7, the fixed clamping seat 7 is used for fixing the conductive knife 6, so that the conductive knife 6 can be driven to rotate, when the two ends of the conductive knife 6 rotate to be in contact with the two fixed contacts 5, the high-voltage isolating switch is in a passage state, and when the two ends of the conductive knife 6 are separated from the two fixed contacts 5, the high-voltage isolating switch is in a circuit-breaking state, and three groups of high-voltage isolating switches are arranged in the structure, so that the combined high-voltage isolating switch is realized.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high voltage isolator of combination, includes landing leg (1) and drive box (10), its characterized in that: the utility model discloses a high-voltage power transmission device, including driving box (10), drive shaft (13) are installed to the top of driving box (10), and drive shaft (13) are connected through the bearing rotation, worm wheel (14) are installed to the lower extreme of drive shaft (13), and worm wheel (14) are connected through fastening screw fixed connection with drive shaft (13), internally mounted of driving box (10) has worm (15), and worm (15) are connected through the bearing rotation with driving box (10), worm (15) are connected with worm wheel (14) interlock, rim (2) are installed to the top of landing leg (1), and rim (2) are connected through bolt fixed with landing leg (1), first supporting insulator (4) are installed to the top of rim (2), fixed contact (5) are installed to the top of first supporting insulator (4), bearing frame (9) are installed to the inboard of rim (2), and bearing frame (9) are connected through bolt fixed connection with rim (2), second supporting insulator (8) are installed to the top of bearing frame (9), second supporting insulator (8) are connected through fastening screw fixed connection with second supporting insulator (8) and the bearing frame (8), and a fixed clamping seat (7) is arranged above the second supporting insulator (8).

2. A combined high voltage isolator as claimed in claim 1, wherein: the inside of the driving box (10) is provided with a motor (11), one side of the motor (11) is provided with a driving wheel (12), the driving wheel (12) is fixedly connected with the motor (11) through a connecting shaft, the outer side of the worm (15) is provided with a driven wheel (16), and the driven wheel (16) is rotationally connected with the driving wheel (12) through a belt.

3. A combined high voltage isolator as claimed in claim 2, wherein: the inside of drive case (10) is installed auxiliary switch ware (17), auxiliary switch ware (17) and motor (11) electric connection, dead lever (3) are installed to one side of landing leg (1), and dead lever (3) and landing leg (1) pass through bolt fixed connection, dead lever (3) and drive case (10) pass through bolt fixed connection.

4. A combined high voltage isolator as claimed in claim 1, wherein: the inside of fixed cassette (7) is installed electrically conductive plug-in strip (6), the outside of electrically conductive plug-in strip (6) is provided with snap ring (18), and snap ring (18) and electrically conductive plug-in strip (6) set up to an organic whole structure, electrically conductive plug-in strip (6) and static contact (5) electric connection.