CN217588795U

CN217588795U - Vacuum circuit breaker transmission structure

Info

Publication number: CN217588795U
Application number: CN202221628794.2U
Authority: CN
Inventors: 赵璟辰; 蔡平; 张忠正; 李江林; 侍郎; 张宇
Original assignee: JIANGSU DAQO HIGH VOLTAGE SWITCHGEAR CO Ltd
Current assignee: JIANGSU DAQO HIGH VOLTAGE SWITCHGEAR CO Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-14
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a vacuum circuit breaker transmission structure, relating to the technical field of circuit breakers; the utility model discloses an outer shell, the inside unit that opens circuit that is provided with of shell, and the unit downside that opens circuit sets up and promote the unit, it links firmly the screw rod to promote the unit downside, and the screw rod lower extreme sets up the component unit, component unit left end sets up in the bent plate, and the bent plate lower extreme sets up the rotation unit, unit lower extreme both sides that open circuit set up spacing unit, and spacing unit keeps away from the inside unit that rolls that sets up of one end of the unit that opens circuit, the characteristic frock is inserted in the screw rod lower extreme outside, make vacuum circuit breaker when the operation, the operation is more stable between the transmission assembly, make the test parameter more accurate.

Description

Vacuum circuit breaker transmission structure

Technical Field

The utility model relates to a circuit breaker technical field specifically is a vacuum circuit breaker transmission structure.

Background

The vacuum circuit breaker is used as a switch of a high-voltage line and mainly plays a role in protecting the high-voltage line.

Traditional vacuum circuit breaker usually drives the main shaft through closing spring and rotates, through the transmission structure, drives the ascending linear motion of insulating pull rod, then moves through the conducting rod action that connecting rod and vacuum interrupter move the end and link to each other, realizes the contact of vacuum interrupter move the end and quiet end, and then accomplishes the combined floodgate process of circuit breaker.

However, the traditional transmission structure of the vacuum circuit breaker plays a significant role in stability and reliability of opening and closing of the switch, the transmission structure of the vacuum circuit breaker in the existing industry is simple, and opening and closing are often unstable due to the occurrence of horizontal component force, so that characteristic parameters of the circuit breaker are influenced.

SUMMERY OF THE UTILITY MODEL

The problem that the characteristic parameters of the vacuum circuit breaker are easily influenced by horizontal component force in the operation process of the vacuum circuit breaker is solved; an object of the utility model is to provide a vacuum circuit breaker transmission structure.

In order to solve the technical problem, the utility model adopts the following technical scheme: including the shell, the inside unit that opens circuit that is provided with of shell, and the unit downside that opens circuit sets up the promotion unit, promote the unit downside and link firmly the screw rod, and the screw rod lower extreme sets up the component unit, the component unit left end sets up in the bent plate, and the bent plate lower extreme sets up the rotation unit, unit lower extreme both sides that open circuit set up spacing unit, and spacing unit keeps away from the inside unit that rolls that sets up of one end of the unit that opens circuit, the characteristic frock is inserted in the screw rod lower extreme outside.

Preferably, the unit that opens circuit includes vacuum interrupter static contact and vacuum interrupter moving contact, and the inside vacuum interrupter static contact that links firmly in shell upper end, vacuum interrupter static contact downside sets up the vacuum interrupter moving contact, the promotion unit includes connecting rod and insulating pull rod, and vacuum interrupter static contact downside threaded connection connecting rod, the connecting rod downside links firmly insulating pull rod, the component force unit includes the turning block, turning arm and first pin junction, and the screw rod downside sets up the turning block, the turning block outside sets up the turning arm, and the inside first pin junction of seting up of turning arm right-hand member, the turning block both ends set up on the bent plate, the rotation unit includes the second pin junction, three-phase turning arm and main shaft, and the inside second pin junction of switching of bent plate lower extreme, the second pin junction outside sets up the three-phase turning arm, and the inside main shaft of seting up of one end that the second pin junction was kept away from to the three-phase turning arm.

Preferably, two sets of limiting units are arranged on two sides of a fixed contact of the vacuum arc extinguish chamber, one end, far away from the circuit breaking unit, of each limiting unit slides in the shell, each limiting unit comprises a sliding block and a rubber pad, the two sides of a moving contact of the vacuum arc extinguish chamber are fixedly connected with the sliding blocks, one end, far away from the moving contact of the vacuum arc extinguish chamber, of each sliding block slides in the shell, the two sides of each sliding block are fixedly connected with the rubber pads, each rolling unit comprises a roller and a limiting rod, the rollers are inserted into the sliding blocks, the limiting rods are inserted into the rollers, and two ends of each limiting rod are connected to the rollers in a switching mode.

Has the advantages that:

through setting up drive mechanism, make vacuum circuit breaker when using, can drive the bent plate and remove through the rotation of rotating the unit, the bent plate removes the stability when promoting the transmission with the help of the component force of component unit, and rethread promotes the unit and closes a floodgate afterwards, makes vacuum circuit breaker when the operation, and the operation is more stable between the drive assembly for the test parameter is more accurate.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 schematic structural view of the present invention.

Fig. 2 is a schematic view of the local cross-sectional structure of the housing of the present invention.

Fig. 3 is a schematic structural diagram of a portion a in fig. 2 according to the present invention.

Fig. 4 is a schematic view of the characteristic tooling structure of the present invention.

In the figure: 1. a housing; 2. a static contact of the vacuum arc extinguish chamber; 3. a moving contact of the vacuum arc extinguish chamber; 4. a connecting rod; 5. an insulating pull rod; 6. a screw; 7. rotating the block; 8. a crank arm; 9. a first pin connection; 10. bending a plate; 11. a second pin connection; 12. a three-phase crank arm; 13. a main shaft; 14. characteristic tooling; 15. a slider; 16. a rubber pad; 17. a roller; 18. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The first embodiment is as follows: as shown in fig. 1-4, the utility model provides a vacuum circuit breaker transmission structure, including shell 1, the inside unit that opens circuit that is provided with of shell 1, and the unit downside that opens circuit sets up the promotion unit, and the promotion unit downside links firmly screw rod 6, and the 6 lower extremes of screw rod set up the component unit, and the component unit left end sets up in bent plate 10, and the 10 lower extremes of bent plate sets up the rotation unit, and the unit lower extreme both sides that open circuit set up spacing unit, and spacing unit keeps away from the inside roll unit that sets up of the one end of the unit that opens circuit, and characteristic frock 14 is established in the 6 lower extreme outsides of screw rod are inserted.

When the vacuum circuit breaker is used, the bending plate 10 can be driven to move through the rotation of the rotating unit, after the bending plate 10 moves, the stability during transmission is improved by means of the component force unit, and then the circuit breaking unit is closed and broken through the pushing unit, so that when the vacuum circuit breaker operates, the transmission assembly operates more stably, and the test parameters are more accurate.

The circuit breaking unit comprises a vacuum arc extinguish chamber static contact 2 and a vacuum arc extinguish chamber moving contact 3, the vacuum arc extinguish chamber static contact 2 is fixedly connected inside the upper end of the shell 1, and the vacuum arc extinguish chamber moving contact 3 is arranged on the lower side of the vacuum arc extinguish chamber static contact 2. The moving contact 3 of the vacuum arc extinguish chamber is pushed to move upwards to be attached to the fixed contact 2 of the vacuum arc extinguish chamber, and the fixed contact 2 of the vacuum arc extinguish chamber and the moving contact 3 of the vacuum arc extinguish chamber are arranged, so that the circuit can be switched on conveniently.

The pushing unit comprises a connecting rod 4 and an insulating pull rod 5, the lower side of the static contact 2 of the vacuum arc extinguish chamber is in threaded connection with the connecting rod 4, and the lower side of the connecting rod 4 is fixedly connected with the insulating pull rod 5. The insulating pull rod 5 is driven to drive the connecting rod 4 to move upwards to push the moving contact 3 of the vacuum arc extinguish chamber after being pushed, and the power of the bent plate 10 is convenient to drive by arranging the connecting rod 4 and the insulating pull rod 5.

The force component unit comprises a rotating block 7, a crank arm 8 and a first pin joint 9, the lower side of the screw rod 6 is connected with the rotating block 7, the crank arm 8 and a bent plate 10 are connected through the rotating block 7, the first pin joint 9 is arranged inside the right end of the crank arm 8, and the rotating block 7 is arranged on the bent plate 10. When the bent plate 10 moves, the crank arm 8 and the first pin connection 9 are driven to move, so that the crank arm 8 and the first pin connection 9 perform component force on the force of the bent plate 10 moving upwards under the rotation of the rotating block 7, and the rotating block 7, the crank arm 8 and the first pin connection 9 are arranged, so that component force on the force generated when the bent plate 10 moves upwards is facilitated, and the stability of the bent plate 10 during transmission is further improved.

The rotating unit comprises a second pin connection 11, a three-phase crank arm 12 and a main shaft 13, the second pin connection 11 is connected to the inside of the lower end of the bent plate 10 in a switching mode, the three-phase crank arm 12 is arranged on the outer side of the second pin connection 11, and the main shaft 13 is arranged inside one end, far away from the second pin connection 11, of the three-phase crank arm 12. The three-phase crank arm 12 and the main shaft 13 rotate in the machine case with the aid of the second pin connection 11, and the second pin connection 11, the three-phase crank arm 12 and the main shaft 13 are arranged to facilitate the movement of the bending plate 10 through rotation.

Two sets of limiting units are arranged on two sides of a fixed contact 2 of the vacuum arc-extinguishing chamber, and one end of each limiting unit, far away from the circuit-breaking unit, slides in the shell 1. The vacuum arc-extinguishing chamber moving contact 3 drives the limiting units to slide in the shell 1 when moving, and the vacuum arc-extinguishing chamber moving contact 3 is more stable when moving by arranging two sets of limiting units.

The limiting unit comprises a sliding block 15 and a rubber pad 16, the sliding blocks 15 are fixedly connected to two sides of the moving contact 3 of the vacuum arc extinguish chamber, one end, far away from the moving contact 3 of the vacuum arc extinguish chamber, of each sliding block 15 slides in the shell 1, and the rubber pads 16 are fixedly connected to two sides of each sliding block 15. The moving contact 3 of the vacuum arc extinguish chamber moves to drive the sliding block 15 and the rubber pad 16 to slide in the shell 1, and the sliding block 15 and the rubber pad 16 are arranged to facilitate the moving of the moving contact 3 of the vacuum arc extinguish chamber.

The rolling unit comprises a roller 17 and a limiting rod 18, the roller 17 is inserted into the sliding block 15, the limiting rod 18 is inserted into the roller 17, and two ends of the limiting rod 18 are connected to the roller 17 in a rotating mode. The slider 15 drives the roller 17 and the limiting rod 18 to move when moving, the roller 17 is attached to the shell 1 to roll under the limiting of the limiting rod 18, and the roller 17 and the limiting rod 18 are arranged, so that the slider 15 is convenient to move.

The main shaft 13 rotates clockwise in the case, and the three-phase crank arm 12 drives the bent plate 10 to move linearly upwards through the second pin connection 11. The turning block 7 is used for connecting a crank arm 8 and a bending plate 10, and the crank arm 8 can be turned in the machine case through a first pin connection 9. The crank arm 8 gives a horizontal component force to the bending plate 10 when moving upwards in the transmission process, so as to counteract the horizontal component force brought by the three-phase crank arm 12 when transmitting the bending plate 10, and ensure the stability of transmission. One end of the screw rod 6 vertically penetrates into the rotating block 7 and is fixed by nuts up and down, and the other end of the screw rod is screwed into the lower end of the insulating pull rod 5 by threads and is fastened by nuts. The bent plate 10 moves upwards, the rotating block 7 drives the screw rod 6 to move, and the insulating pull rod 5 moves upwards synchronously. The lower end of the connecting rod 4 is pressed into the insulating pull rod 5, and the upper end of the connecting rod is screwed into the moving contact 3 of the vacuum arc extinguish chamber through threads and is fastened by a nut. When the insulating pull rod 5 moves upwards, the moving contact 3 of the vacuum arc extinguish chamber moves upwards to contact with the fixed contact 2 of the vacuum arc extinguish chamber through the connecting rod 4, so that the vacuum arc extinguish chamber is connected, namely the vacuum circuit breaker is switched on, the moving contact 3 of the vacuum arc extinguish chamber drives the roller 17 and the limiting rod 18 to move under the limiting of the sliding block 15 and the rubber pad 16, the roller 17 is attached to the shell 1 to roll under the limiting of the limiting rod 18, and the moving contact 3 of the vacuum arc extinguish chamber is assisted to move through the rolling of the roller 17.

The characteristic tool 14 is fastened on the screw rod 6 through a nut in an insert mode, and the displacement sensor is connected with the characteristic tool 14 through threads. In the process of opening and closing the circuit breaker, the insulating pull rod 5 is in a linear motion state, characteristic parameter data of opening and closing can be collected by using a displacement sensor connected to the characteristic tool 14, and the characteristic parameter data are transmitted to a characteristic table and finally fed back to a user. The user can obtain mechanical characteristic parameters and analyze whether the opening and closing data of the circuit breaker meet the technical specifications.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A vacuum circuit breaker transmission structure, includes shell (1), its characterized in that: the utility model discloses a case, including shell (1), the unit that opens circuit, just the unit downside that opens circuit sets up the promotion unit, promote the unit downside and link firmly screw rod (6), and screw rod (6) lower extreme sets up the component unit, component unit left end sets up in bent plate (10), and bent plate (10) lower extreme sets up the rotation unit, the unit lower extreme both sides that open circuit set up spacing unit, and spacing unit keeps away from the inside roll unit that sets up of one end that opens circuit the unit, characteristic frock (14) are inserted in the screw rod (6) lower extreme outside.

2. The transmission structure of the vacuum circuit breaker according to claim 1, wherein the circuit breaking unit comprises a fixed contact (2) of the vacuum interrupter and a movable contact (3) of the vacuum interrupter, the fixed contact (2) of the vacuum interrupter is fixedly connected to the inside of the upper end of the housing (1), and the movable contact (3) of the vacuum interrupter is arranged on the lower side of the fixed contact (2) of the vacuum interrupter.

3. The transmission structure of the vacuum circuit breaker according to claim 1, characterized in that the pushing unit comprises a connecting rod (4) and an insulating pull rod (5), and the connecting rod (4) is screwed on the lower side of the static contact (2) of the vacuum interrupter, and the insulating pull rod (5) is fixedly connected on the lower side of the connecting rod (4).

4. The transmission structure of the vacuum circuit breaker according to claim 1, wherein the force component unit comprises a rotating block (7), a crank arm (8) and a first pin joint (9), the rotating block (7) is arranged at the lower side of the screw (6), the crank arm (8) is arranged at the outer side of the rotating block (7), the first pin joint (9) is arranged at the inner part of the right end of the crank arm (8), and two ends of the rotating block (7) are arranged on the bent plate (10).

5. The vacuum circuit breaker transmission structure according to claim 1, wherein the rotating unit comprises a second pin connection (11), a three-phase crank arm (12) and a main shaft (13), the second pin connection (11) is connected to the inside of the lower end of the bent plate (10), the three-phase crank arm (12) is arranged on the outer side of the second pin connection (11), and the main shaft (13) is arranged inside one end of the three-phase crank arm (12) far away from the second pin connection (11).

6. The vacuum circuit breaker transmission structure according to claim 1, characterized in that two sets of limiting units are arranged on both sides of the stationary contact (2) of the vacuum interrupter, and one end of the limiting unit far from the breaking unit slides in the housing (1).

7. The transmission structure of the vacuum circuit breaker according to claim 1, wherein the limiting unit comprises a sliding block (15) and a rubber pad (16), the sliding block (15) is fixedly connected to two sides of the moving contact (3) of the vacuum arc extinguish chamber, one end of the sliding block (15) far away from the moving contact (3) of the vacuum arc extinguish chamber slides in the housing (1), and the rubber pad (16) is fixedly connected to two sides of the sliding block (15).

8. The vacuum circuit breaker transmission structure according to claim 1, wherein the rolling unit comprises a roller (17) and a limit rod (18), the roller (17) is inserted inside the sliding block (15), the limit rod (18) is inserted inside the roller (17), and two ends of the limit rod (18) are connected to the roller (17).