CN114188177A - 40.5kV vertical open type isolating switch - Google Patents
40.5kV vertical open type isolating switch Download PDFInfo
- Publication number
- CN114188177A CN114188177A CN202111403878.6A CN202111403878A CN114188177A CN 114188177 A CN114188177 A CN 114188177A CN 202111403878 A CN202111403878 A CN 202111403878A CN 114188177 A CN114188177 A CN 114188177A
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- transmission
- double
- arm
- layer
- conductive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
Abstract
The invention discloses a 40.5kV vertical open type isolating switch, which comprises a bottom frame, a transmission box, a double-layer conductive arm, a transmission insulator and a driving mechanism, wherein a plurality of pairs of supporting insulators and a main conductive base are arranged on the bottom frame side by side, and the transmission connecting lever is used for controlling the transmission insulator to rotate and controlling the double-layer conductive arm and a static side base to perform opening and closing actions in the vertical direction. The isolating switch has high through-current capability, the conducting arm of the isolating switch adopts a double-layer conducting arm structure, the sectional area of each layer of conducting arm is smaller, and the problem of difficulty in selecting conducting materials with high current parameters of more than 6300kA can be effectively solved; the operation is flexible, controllable and stable, the impact on a static side during closing is reduced, the device can stop at any position and has certain static holding force; the isolation switch electric mechanism is convenient to maintain, simple in structure, capable of being used in severe environments such as dusty environments, humid environments and the like, and convenient to maintain in daily life.
Description
Technical Field
The invention relates to the technical field of isolating switches, in particular to a 40.5kV vertical open type isolating switch.
Background
At present, in order to meet the requirements of isolating switches of national power grid companies and southern power grid companies under different application environment conditions, isolating switches under various working conditions are developed, and for isolating switches with rated voltage of 40.5kV and outdoor use environments, the structure form is a vertical open type isolating switch, the size of the isolating switch is generally larger, and particularly for isolating switches with rated current of more than 6300A, the appearance size of a conducting part of the isolating switch is larger. At present, a conductive part generally adopts a copper bar or a copper pipe, the selection of materials with large sectional areas and large material areas adopted under the condition of large current parameters is difficult, the torque required by operation is relatively large, the requirement on the strength of a transmission part is increased, and the integral safety and reliability of equipment are improved.
Disclosure of Invention
The invention aims to provide a 40.5kV vertical open type isolating switch which is high in through-current capacity and flexible to operate.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a 40.5kV vertical opening type isolator, includes the chassis, installs many pairs of support insulator and main conductive base on the chassis side by side, and fixed mounting has quiet side base on the support insulator, still includes transmission case, double-deck electrically conductive arm, transmission insulator and actuating mechanism, double-deck electrically conductive arm one end activity is articulated to be installed on main conductive base, and double-deck electrically conductive arm middle part is articulated with transmission insulator one end activity, actuating mechanism includes a plurality of transmission turning arms, fixed connection between a plurality of transmission turning arms, and transmission turning arm and transmission insulator other end activity are articulated, and the transmission turning arm is used for controlling transmission insulator and rotates and control double-deck electrically conductive arm and quiet side base and do the floodgate action that opens and shuts of vertical direction.
Preferably, the driving mechanism is a vertical transmission structure and comprises a transmission case and an electric operating mechanism, a main transmission bevel gear shaft and a driven bevel gear are movably mounted in the transmission case, the driven bevel gear is fixedly sleeved on one of the transmission crank arms and meshed with the main transmission bevel gear shaft, and the electric operating mechanism drives the main transmission bevel gear shaft to rotate through an output shaft of the electric mechanism.
Preferably, electric operating mechanism includes block terminal and servo motor, and block terminal fixed mounting is in the chassis lower part, servo motor fixed mounting is in the block terminal, and servo motor's output shaft and electric mechanism output shaft fixed connection, electric mechanism output shaft and main drive bevel gear axle fixed connection.
Preferably, the driving mechanism is a transverse transmission structure and comprises a bidirectional cylindrical motor, two driving shafts are arranged at two ends of the bidirectional cylindrical motor, the bidirectional cylindrical motor is fixedly installed on the bottom frame, and the two driving shafts of the bidirectional cylindrical motor are respectively and fixedly connected with the transmission crank arms at two sides.
Preferably, the transmission crank arm is mounted on the underframe through a bearing seat.
Preferably, the double-layer conductive arm is designed in parallel with the double-layer conductive plate, the double-layer conductive plate synchronously acts when the conductive arm is switched on and off, the static contact is designed to be of a double-layer structure, each layer of static contact is vertically installed, and one side of the double-layer conductive arm is in line contact with the static contact in a switching-on state.
Preferably, the double-layer conductive arm is formed by two conductive plates in parallel, a gap is formed between the two conductive plates, and a static contact corresponding to the conductive plates is arranged on the static side base.
Preferably, the fixed contact is located on a side surface of the stationary base, and is in a closing state when the conductive plate is attached to the fixed contact at the corresponding position.
Compared with the prior art, the invention has the advantages that:
the isolating switch has high through-current capacity, the conducting arm of the isolating switch adopts a double-layer conducting arm structure, and the sectional area of each layer of conducting arm is small due to the double-layer structure, so that the structure can effectively solve the problem of difficulty in selecting conducting materials with high current parameters of more than 6300 kA;
the operation is flexible, controllable and stable, the isolating switch adopts a gear box for transmission, and a bevel gear is adopted in the transmission box, so that the transmission is stable and reliable. Meanwhile, the power source adopts a mode of matching the motor and the speed reducer, so that the transmission is stable, the impact on a static side during closing is reduced, the automobile can stop at any position and has certain static holding force;
the isolation switch electric mechanism is convenient to maintain, simple in structure, capable of being used in severe environments such as dusty environments, humid environments and the like, and convenient to maintain in daily life.
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 the drawings without creative efforts.
FIG. 1 is a block diagram of a 40.5kV vertical turn-on isolator of the present invention;
FIG. 2 is a block diagram of the stationary base of the present invention;
FIG. 3 is a block diagram of a driving mechanism in the first embodiment;
FIG. 4 is a side view of a 40.5kV vertical turn-on isolator of the present invention;
fig. 5 is a structural view of a drive mechanism in the second embodiment.
In the figure: the device comprises a main conductive base 1, a double-layer conductive arm 2, a transmission insulator 3, a post insulator 4, a transmission crank arm 5, a transmission box 6, a static contact 7, a static side base 8, a main transmission bevel gear shaft 9, a driven bevel gear 10, a cylindrical motor 11, a bottom frame 12, an electric mechanism output shaft 13 and an electric operating mechanism 14.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
Example one
Referring to fig. 1-4, the invention provides a 40.5kV vertical open type disconnecting switch, which comprises a chassis 12, wherein a plurality of pairs of supporting insulators 4 and a main conductive base 1 are arranged on the chassis 12 side by side, a static side base 8 is fixedly arranged on the supporting insulators 4, the disconnecting switch also comprises a transmission case 6, a double-layer conductive arm 2, a transmission insulator 3 and a driving mechanism, one end of the double-layer conductive arm 2 is movably hinged on the main conductive base 1, the middle part of the double-layer conductive arm 2 is movably hinged with one end of the transmission insulator 3, the driving mechanism comprises a plurality of transmission connecting levers 5, the plurality of transmission connecting levers 5 are fixedly connected, the transmission connecting levers 5 are movably hinged with the other end of the transmission insulator 3, the transmission connecting levers 5 are used for controlling the transmission insulator 3 to rotate so as to control the double-layer conductive arm 2 to make a vertical opening and closing action with the static side base 8, when the double-layer conductive arm 2 is in contact with the static side base 8, the disconnector is now energized.
In this embodiment, the driving mechanism is a vertical driving structure, and includes a transmission case 6 and an electric operating mechanism 14, a main driving bevel gear shaft 9 and a driven bevel gear 10 are movably installed in the transmission case 6, the driven bevel gear 10 is fixedly sleeved on one of the driving crank arms 5, the driven bevel gear 10 is meshed with the main driving bevel gear shaft 9, the electric operating mechanism 14 drives the main driving bevel gear shaft 9 to rotate through an electric mechanism output shaft 13, the main driving bevel gear shaft 9 is driven to rotate through the electric operating mechanism 14, the driving crank arms 5 can be rotated, so that the lower end of the driving insulator 3 is rotated, when the lower end of the driving insulator 3 is rotated, the upper end position thereof is deviated to control the movement of the double-layer conductive arm 2, and the driving is stable and reliable, the impact of the conductive plate on the stationary base 8 during closing can be reduced, and the driving can be stopped at any position, has certain static holding power and better controllability.
In this embodiment, electric operating mechanism 14 includes block terminal and servo motor, and block terminal fixed mounting is in chassis 12 lower part, servo motor fixed mounting is in the block terminal, and servo motor's output shaft and electric mechanism output shaft 13 fixed connection, electric mechanism output shaft 13 and main transmission bevel gear axle 9 fixed connection.
In this embodiment, the transmission crank arm 5 is installed on the base frame 12 through a bearing seat, so as to ensure the stability of the rotation of the transmission crank arm 5.
In this embodiment, the double-layer conductive arm is designed in parallel with the double-layer conductive plates, the double-layer conductive plates synchronously move when the conductive arm is switched on and off, the static contact is designed to be a double-layer structure, each layer of static contact is vertically installed, one side of the conductive arm in a switching-on state is in line contact with the static contact, the sectional area of each layer of conductive plate can be reduced by designing the conventional single-plate conductive arm to be a double-layer conductive plate structure, and the problem that conductive materials with large current parameters above 6300kA are difficult to select can be effectively solved.
In this embodiment, the double-layer conductive arm 2 is formed by two conductive plates in parallel, a gap is formed between the two conductive plates, the gap can be designed according to current intensity, if the current intensity is higher, the gap is designed to be larger, so as to avoid electrical interference, the stationary contact 7 corresponding to the conductive plates is arranged on the stationary base 8 and used for contacting with the conductive plates for conduction, and when the stationary contact 7 is designed, an inclined surface can be arranged at the upper part of the stationary contact, so that the conductive plates can be smoothly cut in, and the conductive plates can be smoothly attached.
In this embodiment, the fixed contact 7 is located on a side surface of the fixed side base 8, and is in a closing state when the conductive plate is attached to the fixed contact 7 at the corresponding position.
Example two
The difference between this embodiment and the first embodiment is that the driving mechanism is a horizontal transmission structure, which includes a bidirectional cylindrical motor 11, two driving shafts are provided at two ends of the bidirectional cylindrical motor 11, the bidirectional cylindrical motor 11 is fixedly mounted on the bottom frame 12, the two driving shafts of the bidirectional cylindrical motor 11 are respectively and fixedly connected with the transmission crank arms 5 at two sides, compared with a vertical transmission structure, the structure has fewer used structures, thereby reducing the floor space, and is suitable for being used underground in fields with higher requirements for installation area, but compared with the structure, the structure has a vertical transmission structure, and has a longer service life, and needs to be regularly maintained, so that the transmission structure can be selected according to actual conditions.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes or modifications may be made by the patentees within the scope of the appended claims, and within the scope of the invention, as long as they do not exceed the scope of the invention described in the claims.
Claims (8)
1. The utility model provides a 40.5kV vertical open-type isolator, includes the chassis, installs many pairs of support insulator and main conductive base on the chassis side by side, and fixed mounting has quiet side base, its characterized in that on the support insulator: still include transmission case, double-deck electrically conductive arm, transmission insulator and actuating mechanism, double-deck electrically conductive arm one end activity hinge joint is installed on main conductive base, and double-deck electrically conductive arm middle part is articulated with transmission insulator one end activity, actuating mechanism includes a plurality of transmission connecting levers, fixed connection between a plurality of transmission connecting levers, transmission connecting lever and transmission insulator other end activity hinge joint, and the transmission connecting lever is used for controlling transmission insulator to rotate and controls double-deck electrically conductive arm and quiet side base and do the action of opening and shutting of vertical direction.
2. The 40.5kV vertical opening type isolation switch according to claim 1, wherein: the driving mechanism is of a vertical transmission structure and comprises a transmission case and an electric operating mechanism, a main transmission bevel gear shaft and a driven bevel gear are movably mounted in the transmission case, the driven bevel gear is fixedly sleeved on one of the transmission crank arms and meshed with the main transmission bevel gear shaft, and the electric operating mechanism drives the main transmission bevel gear shaft to rotate through an output shaft of the electric mechanism.
3. The 40.5kV vertical opening type isolation switch according to claim 2, wherein: the electric operating mechanism comprises a distribution box and a servo motor, the distribution box is fixedly arranged on the lower portion of the bottom frame, the servo motor is fixedly arranged in the distribution box, an output shaft of the servo motor is fixedly connected with an output shaft of the electric mechanism, and the output shaft of the electric mechanism is fixedly connected with a main transmission bevel gear shaft.
4. The 40.5kV vertical opening type isolation switch according to claim 1, wherein: the driving mechanism is of a transverse transmission structure and comprises a bidirectional cylindrical motor, two driving shafts are arranged at two ends of the bidirectional cylindrical motor, the bidirectional cylindrical motor is fixedly installed on the bottom frame, and the two driving shafts of the bidirectional cylindrical motor are fixedly connected with the transmission crank arms at two sides respectively.
5. The 40.5kV vertical opening type isolation switch according to claim 1, wherein: the transmission crank arm is installed on the underframe through a bearing seat.
6. The 40.5kV vertical opening type isolation switch according to claim 1, wherein: the conductive arm is parallel to the double-layer conductive plates, the double-layer conductive plates synchronously move when the conductive arm is switched on and off, the static contact is designed to be a double-layer structure, each layer of static contact is vertically installed, and one side of the double-layer conductive arm is in line contact with the static contact in a switching-on state.
7. The 40.5kV vertical opening type isolation switch according to claim 1, wherein: the double-layer conductive arm is formed by two conductive plates in parallel, a gap is formed between the two conductive plates, and the static contact corresponding to the conductive plates is arranged on the static side base.
8. The 40.5kV vertical opening type isolation switch according to claim 1, wherein: the static contact is positioned on the side surface of the static side base, and the static contact is in a closing state when the conductive plate is attached to the static contact at the corresponding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403878.6A CN114188177A (en) | 2021-11-24 | 2021-11-24 | 40.5kV vertical open type isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403878.6A CN114188177A (en) | 2021-11-24 | 2021-11-24 | 40.5kV vertical open type isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114188177A true CN114188177A (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111403878.6A Pending CN114188177A (en) | 2021-11-24 | 2021-11-24 | 40.5kV vertical open type isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114188177A (en) |
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2021
- 2021-11-24 CN CN202111403878.6A patent/CN114188177A/en active Pending
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