CN214797234U - Buffer structure of outdoor column switch - Google Patents
Buffer structure of outdoor column switch Download PDFInfo
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- CN214797234U CN214797234U CN202120580554.9U CN202120580554U CN214797234U CN 214797234 U CN214797234 U CN 214797234U CN 202120580554 U CN202120580554 U CN 202120580554U CN 214797234 U CN214797234 U CN 214797234U
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- main shaft
- buffer
- pole
- switch
- roller
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Abstract
The utility model discloses a buffer structure of an outdoor pole-mounted switch, which comprises a shell of the pole-mounted switch, a main shaft of a switching-on/off device, a buffer gasket, an oil buffer, a mounting bracket, a linkage bracket and a roller; the main shaft is arranged in the shell and can axially move, and when the main shaft moves to two ends, the opening and closing of the column switch are respectively realized; the buffer gasket is arranged at the brake separating end of the main shaft and used for limiting and buffering when the main shaft is separated; the oil buffer is fixed in the shell through the mounting bracket and is positioned above the main shaft; the linkage bracket is connected to the main shaft; the roller is pivoted and matched on the linkage bracket and is arranged opposite to the piston support of the oil buffer; when the main shaft moves to the brake separating position, the roller contacts and compresses the piston support, and the end part of the main shaft abuts against the cushion pad to realize the buffering function. The utility model discloses a buffer performance when buffer spacer, two buffer gear of oil buffer improve mechanism's separating brake avoids the too big problem of separating brake rebound, effectively improves the mechanical life of column switch.
Description
Technical Field
The utility model relates to an outdoor column switch technical field especially indicates a buffer structure of outdoor column switch.
Background
The outdoor pole-mounted switch is a switch arranged on an outdoor pole in an overhead distribution line, is suitable for protection and control occasions of transformer substations, industrial and mining enterprises and urban and rural power distribution networks, and is particularly suitable for places with frequent operation and urban network automation power distribution networks. The switch body adopts a support column type, a vacuum arc-extinguishing chamber, a configurable isolation switch, a permanent magnet or spring operating mechanism, and a box-type or cover-type one-time and two-time fusion special feeder terminal.
Most of existing column switch opening devices are provided with rubber buffer gaskets on a switch shell, and the rubber buffer gaskets are used as buffer devices for mechanism opening, so that the problem that the impact force of opening energy on a switch is large in the opening process is solved, opening rebounding is too large, three phases are unbalanced, the mechanical life of the column switch is short, and the problem that a main loop is re-ignited after opening is easily caused in serious situations.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a buffer structure of outdoor column switch improves the shock-absorbing capacity when mechanism's separating brake, avoids the too big problem of separating brake rebound, effectively improves the mechanical life of column switch.
In order to achieve the above purpose, the solution of the present invention is:
a buffer structure of an outdoor pole-mounted switch comprises a shell of the pole-mounted switch, a main shaft of a switching-on and switching-off device, a buffer gasket, an oil buffer, a mounting bracket, a linkage bracket and a roller; the main shaft is arranged in the shell and can move axially, and when the main shaft moves towards two ends, the opening and closing of the column switch are respectively realized; the buffer gasket is arranged at the brake separating end of the main shaft and used for limiting and buffering when the main shaft is in brake separating; the oil buffer is fixed in the shell through the mounting bracket and is positioned above the main shaft; the linkage bracket is connected to the main shaft; the roller is in pivot joint with the linkage bracket and is arranged opposite to the piston support of the oil buffer; when the main shaft moves to the opening position, the roller contacts and compresses the piston support, and the end part of the main shaft abuts against the buffer pad to realize the buffer function.
The buffering structure of the outdoor column switch further comprises a fastening nut, the oil buffer comprises a piston support column and a cup seat, the piston support column is movably arranged in a penetrating mode on the cup seat, and the cup seat is installed on the mounting support in a limiting mode through the fastening nut.
The height of the buffer pad is lower than the position of the oil buffer.
The buffering structure of the outdoor pole-mounted switch further comprises a pole post of a vacuum arc-extinguishing chamber, wherein the inside of the pole post is fixedly sealed with a driving contact and a static contact, the pole post is arranged above the main shaft, an insulating pull rod of the pole post is linked with the main shaft through a connecting rod, and two ends of the connecting rod are respectively in pin joint fit with the insulating pull rod and the main shaft.
After the technical scheme is adopted, the utility model discloses a set up buffer spacer and oil buffer, when the main shaft separating brake motion targets in place, the oil mass release through oil buffer inside reduces the velocity of motion of main shaft, thereby reduce the impact of separating brake spring energy release to the switch, buffer spacer also plays certain cushioning effect to the separating brake motion of main shaft simultaneously, realize two cushions, safety mechanism, impact and the vibrations that produce when greatly having reduced the switch separating brake, avoid the too big problem of separating brake rebound, the mechanical life of column switch has effectively been improved.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is a schematic view of the switching-off state according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a closing state according to an embodiment of the present invention.
The reference numbers illustrate:
1, a shell; 2, a main shaft; 3, a buffer gasket;
4 an oil buffer; 41 a piston post; 42 cup seat;
5, mounting a bracket; 6, linking a bracket; 7, a roller;
8, fastening a nut; 9 pole; 91 insulating the pull rod;
10 connecting rods.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
The utility model relates to a buffer structure of outdoor column switch, including the casing 1 of column switch, close main shaft 2 of separating brake device to and buffer spacer 3, oil buffer 4, installing support 5, linkage support 6 and gyro wheel 7.
The main shaft 2 is arranged in the shell 1 and can axially move, and when the main shaft 2 moves towards two ends, the opening and closing of the column switch are respectively realized;
the buffer gasket 3 is arranged at the brake separating end of the main shaft 2 and used for limiting and buffering when the main shaft 2 is in brake separating;
the oil buffer 4 is fixed in the shell 1 through a mounting bracket 5 and is positioned above the main shaft 2;
the linkage bracket 6 is connected to the main shaft 2;
the roller 7 is pivoted and matched on the linkage bracket 6 and is arranged opposite to the piston support 41 of the oil buffer 4;
when the main shaft 2 moves to the opening position, the roller 7 contacts and compresses the piston support 41, and the end part of the main shaft 2 abuts against the buffer gasket 3, so that the buffer function is realized.
Referring to fig. 1 and 2, a specific embodiment of the present invention is shown.
The housing 1 is a casing of the pole top switch.
The buffer pad 3 is made of rubber material, so as to have better buffer and shock absorption performance.
The utility model discloses still include fastening nut 8, oil buffer 4 includes foretell piston support 41 to and cup 42, cup 42 is worn to locate in the activity of piston support 41, and cup 42 is spacing to be installed on installing support 5 through fastening nut 8. By adjusting the relative position of the fastening nut 8 and the cup seat 42, the opening stroke of the main shaft 2 can be adjusted, namely the total opening and closing stroke of the switch can be adjusted, the design requirement is met, and a relatively ideal mechanical characteristic curve is obtained.
The height of the buffer pad 3 is slightly lower than the position of the oil buffer 4, so that the brake-separating buffer function of the oil buffer 4 is prevented from being influenced.
The utility model discloses still including inside solid sealing the utmost point post 9 that has the vacuum interrupter of drive, static contact, utmost point post 9 sets up in the top of main shaft 2, and utmost point post 9's insulating pull rod 91 links through a connecting rod 10 and main shaft 2, and the both ends of connecting rod 10 pin joint cooperation respectively is on insulating pull rod 91, main shaft 2. The three poles 9 form three main loop conductive parts of the pole-mounted switch, and the main loop can bear and break the current of the main loop by opening or closing the movable contact and the static contact in the vacuum arc extinguish chamber, and has certain short circuit closing and breaking capacity. The inside moving contact and the static contact of vacuum interrupter open and close, drive the insulating pull rod 91 of connecting rod 10 drive utmost point post 9 through main shaft 2: when the switch is opened, the opening spring of the opening and closing device releases energy, the main shaft 2 drives the connecting rod 10 to drive the insulating pull rod 91 to move downwards, so that the moving contact of the vacuum arc-extinguishing chamber in the pole 9 moves downwards, the moving contact and the static contact are separated, and the opening process of the main circuit is completed; when the switch is switched on, the switching-on spring of the switching-on and switching-off device releases energy, the main shaft 2 drives the connecting rod 10 to drive the insulating pull rod 91 to ascend, so that the moving contact of the vacuum arc extinguish chamber in the pole 9 moves upwards, the moving contact and the fixed contact are contacted and compressed to form a certain overtravel, and the switching-on process of the main circuit is completed.
Referring to fig. 3, the switching-off process of the pole-mounted switch of the present invention is as follows:
after the opening of the mechanism on the switch is released, the opening spring is released to drive the main shaft 2 to move towards the direction of the buffer gasket 3, namely the bottom of the shell 1; when the main shaft 2 moves, the linkage bracket 6 and the roller 7 are driven to move in the same direction; when the roller 7 moves, the distance between the roller and the piston support 41 of the oil buffer 4 is reduced until the roller and the piston support 41 move together after contacting, until the piston support 41 reaches the fixed surface of the cup seat 42, and the opening process is finished. The cushion pad 3 also serves to prevent the main shaft 2 from overshooting. When the main shaft 2 is in brake-separating motion, the connecting rod 10 is driven to move, the connecting rod 10 drives the insulating pull rod 91 of the pole 9 to move downwards, so that the movable contact and the fixed contact in the vacuum arc extinguish chamber are separated, namely, the separation of the electric conductors of the main circuit of the switch is realized, and the brake-separating process of the switch is completed.
Referring to fig. 4, the switching-off process of the pole-mounted switch of the present invention is as follows:
after the on-switch mechanism is switched on and released, the switching-on spring is released to drive the main shaft 2 to move towards the reverse direction of the buffer gasket 3; when the main shaft 2 moves, the linkage bracket 6 and the roller 7 are driven to move together; when the roller 7 moves, the roller is gradually separated from the piston support 41 of the oil buffer 4, and the distance between the roller and the piston support is increased until the roller is switched on. When the main shaft 2 is in switching-on motion, the connecting rod 10 is driven to move simultaneously, the connecting rod 10 drives the insulating pull rod 91 of the pole 9 to move upwards, the insulating pull rod 91 is connected with a moving contact of a vacuum arc extinguish chamber in the pole 9 and moves upwards simultaneously, the moving contact moves upwards until the moving contact is contacted with a fixed contact in the vacuum arc extinguish chamber and is compressed to form a certain overtravel, namely, the electric conductor of a main circuit of the switch is switched on, and the switching-on process of the switch is completed.
Through the scheme, the utility model discloses a set up buffer spacer 3 and oil buffer 4, when 2 separating brake movements of main shaft put in place, the oil mass release through oil buffer 4 inside reduces the velocity of motion of main shaft 2, thereby reduce the impact that the separating brake spring released can be to the switch, buffer spacer 3 also plays certain cushioning effect to the separating brake movement of main shaft 2 simultaneously, realize two cushions, safety mechanism, impact and the vibrations that produce when greatly having reduced the switch separating brake, avoid the too big problem of separating brake rebound, the mechanical life of column switch has effectively been improved.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (4)
1. The utility model provides a buffer structure of outdoor column switch which characterized in that:
the device comprises a shell of an on-pole switch, a main shaft of a switching-on and switching-off device, a buffer gasket, an oil buffer, a mounting bracket, a linkage bracket and a roller;
the main shaft is arranged in the shell and can move axially, and when the main shaft moves towards two ends, the opening and closing of the column switch are respectively realized;
the buffer gasket is arranged at the brake separating end of the main shaft and used for limiting and buffering when the main shaft is in brake separating;
the oil buffer is fixed in the shell through the mounting bracket and is positioned above the main shaft;
the linkage bracket is connected to the main shaft;
the roller is in pivot joint with the linkage bracket and is arranged opposite to the piston support of the oil buffer;
when the main shaft moves to the opening position, the roller contacts and compresses the piston support, and the end part of the main shaft abuts against the buffer pad to realize the buffer function.
2. A buffer structure of an outdoor pole-mounted switch as claimed in claim 1, wherein:
still include fastening nut, the oil buffer includes the piston pillar to and the cup, the activity of piston pillar is worn to locate the cup, the cup passes through fastening nut is spacing to be installed on the installing support.
3. A buffer structure of an outdoor pole-mounted switch as claimed in claim 1, wherein:
the height of the buffer pad is lower than the position of the oil buffer.
4. A buffer structure of an outdoor pole-mounted switch as claimed in claim 1, wherein:
the vacuum arc extinguishing chamber pole is characterized by further comprising a pole column of the vacuum arc extinguishing chamber, wherein the pole column is internally and fixedly sealed with a driving contact and a static contact, the pole column is arranged above the main shaft, an insulating pull rod of the pole column is linked with the main shaft through a connecting rod, and two ends of the connecting rod are respectively in pin joint fit with the insulating pull rod and the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120580554.9U CN214797234U (en) | 2021-03-22 | 2021-03-22 | Buffer structure of outdoor column switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120580554.9U CN214797234U (en) | 2021-03-22 | 2021-03-22 | Buffer structure of outdoor column switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214797234U true CN214797234U (en) | 2021-11-19 |
Family
ID=78666403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120580554.9U Active CN214797234U (en) | 2021-03-22 | 2021-03-22 | Buffer structure of outdoor column switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214797234U (en) |
-
2021
- 2021-03-22 CN CN202120580554.9U patent/CN214797234U/en active Active
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