CN212694910U - Assembly structure suitable for 750 kilovolt V-shaped suspension insulator string in gale area - Google Patents
Assembly structure suitable for 750 kilovolt V-shaped suspension insulator string in gale area Download PDFInfo
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- CN212694910U CN212694910U CN202022053223.8U CN202022053223U CN212694910U CN 212694910 U CN212694910 U CN 212694910U CN 202022053223 U CN202022053223 U CN 202022053223U CN 212694910 U CN212694910 U CN 212694910U
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Abstract
The utility model discloses an assembly structure suitable for insulator chain dangles in 750 kilovolts of V type in gale area belongs to power engineering's technical field, and this assembly structure includes: the V-shaped insulator strings are symmetrical; the two-to-one wire clamp is provided with a jumper wire clamping opening and a lower lead wire clamping opening which are positioned on the same vertical line, and the vertical line is parallel to the symmetrical axis of the V-shaped insulator string; the yoke plate, one side of yoke plate with V type insulator cluster is connected, the opposite side with two become a line clamp and connect to reach the weight of downlead and its gold utensil and be fixed by insulator chain, insulator chain and jumper wire can not warp, and the jumper wire can not loose the thigh yet, be favorable to the purpose of construction installation and later stage operation maintenance.
Description
Technical Field
The utility model belongs to the technical field of electric power engineering, particularly, relate to an assembly structure suitable for insulator chain dangles in 750 kilovolts of gale area V type.
Background
The suspension insulator string group is an insulator string group with all hardware fittings and accessories and used for suspending a lead or a split lead; the compact and compact transmission lines adopt V-shaped insulator strings to effectively limit the swing amplitude of the wires, so that the size of a tower head and the dynamic and static widths of a corridor are reduced. The size of the included angle of the V-shaped insulator string directly influences the size of the tower head and the stress condition of the insulator string. According to a large amount of collected domestic and foreign research and design data, the included angle of the V-shaped string is basically between 70 and 120 degrees. The load of the V-shaped insulator string is complex, and is not only related to vertical load, but also related to the included angle, horizontal load and longitudinal load of the V-shaped string. The larger the included angle of the V-shaped insulator string is, the larger the vertical, horizontal and longitudinal loads are.
The existing 750 kv V-type suspension insulator string in the gale region is generally only used for jumper fixing, and the down conductor of the voltage transformer or the lightning arrester is generally led from the jumper by adopting a four-wire-changing clamp, and the led position is about 1 meter away from the suspension insulator string, as shown in fig. 1.
Due to the weight of the down lead and the hardware fitting thereof, the insulator string and the jumper wire are usually deviated to the down lead side to further deform, and the swing amplitude of the whole insulator string and the whole jumper wire is large under the action of strong wind, so that the jumper wire is easy to loose strands, and great adverse effects are caused on construction installation and later-period operation and maintenance.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing an assembly structure that is applicable to 750 kilovolts of V type in gale area dangles insulator chain is fixed by insulator chain in order to reach the weight of downlead and gold utensil, and insulator chain and jumper wire can not warp, and the jumper wire can not loose the strand yet, is favorable to the purpose of construction installation and later stage operation maintenance.
The utility model discloses the technical scheme who adopts does: an assembly structure suitable for a 750 KV V-shaped suspension insulator string in a gale area, the assembly structure comprising:
the V-shaped insulator strings are symmetrical;
the two-to-one wire clamp is provided with a jumper wire clamping opening and a lower lead wire clamping opening which are positioned on the same vertical line, and the vertical line is parallel to the symmetrical axis of the V-shaped insulator string;
one side of the yoke plate is connected with the V-shaped insulator string, and the other side of the yoke plate is connected with the two-to-one line clamp.
Furthermore, the V-shaped insulator string comprises two symmetrically arranged insulator strings, one end of each insulator string is connected to the yoke plate through a socket head hanging plate, and the other end of each insulator string is provided with a ball head hanging ring.
Further, the assembly structure further includes: and the equalizing rings are arranged at the end parts of the two insulator strings so as to improve the voltage distribution on the insulator strings through the equalizing rings.
Furthermore, the ball head suspension loop is connected with a turn buckle through a U-shaped suspension loop, and the other end of the turn buckle is connected to the framework beam through the U-shaped suspension loop.
Furthermore, the two-to-one line clamp is connected to the yoke plate through the right-angle hanging plate, and the installation is simple and reliable.
Furthermore, two become a traditional thread binding clip and be equipped with and be symmetrical arrangement for the symmetry axis of V type insulator chain to ensure that the atress is more balanced and difficult deformation.
Further, the two become a thread clamp includes:
the base plate is provided with two jumper wire clamping openings;
the lower lead plate is connected to the base plate, a lower lead sleeve is integrally formed on the lower lead plate along the vertical line, and the lower lead clamping opening is formed in the lower lead sleeve so as to fix the lower lead firmly through the lower lead clamping opening.
Further, the jumper clamp includes:
a jumper wire holder arranged on the substrate;
the jumper wire clamping cover is matched with the jumper wire clamping seat and is connected and locked with the jumper wire clamping seat through a plurality of bolts so as to fix and fix the jumper wire firmly through the jumper wire clamping opening.
The utility model has the advantages that:
1. by adopting the assembly structure suitable for the 750 kV V-shaped suspension insulator string in the gale region, the two-to-one wire clamp is connected below the V-shaped insulator string through the connecting plate to fix the two-to-one wire clamp at the bottom of the V-shaped insulator string, so that when the two-to-one wire clamp is used for connecting the jumper wire, the down lead of the two-to-one wire clamp and the weight of metal of the down lead are fixed by the insulator string, the insulator string and the jumper wire cannot deform, and the jumper wire cannot be stranded, thereby being beneficial to construction installation and later-stage operation maintenance.
Drawings
FIG. 1 is a prior art arrangement of a suspension insulator string;
fig. 2 is a schematic overall structure diagram of an assembly structure of a 750 kv V-shaped suspension insulator string suitable for use in a high wind region, according to the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
FIG. 4 is a schematic front view of a two-to-one wire clamp in an assembly structure suitable for a 750 kV V-shaped suspension insulator string in a high wind area;
FIG. 5 is a schematic side view of a two-to-one clamp in an assembly structure suitable for a 750 kV V-shaped suspension insulator string in a high wind area according to the present invention;
fig. 6 is a partial schematic view of an assembly structure of a 750 kv V-type suspension insulator string suitable for use in high wind areas according to another embodiment of the present invention;
the drawings are labeled as follows:
1-U-shaped hanging ring, 2-ball-head hanging ring, 3-insulator string, 4-socket hanging plate, 5-connecting plate, 6-right-angle hanging plate, 7-two-to-one wire clamp, 8-uniform pressure plate, 9-turnbuckle, 10-base plate, 11-jumper wire clamping seat, 12-lower lead bushing, 13-jumper wire clamping cover, 14-lower lead plate, 15-framework beam, 16-V-shaped insulator string, 17-jumper wire, 18-four-to-two wire clamp and 19-lower lead wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Example 1
As shown in fig. 2, in this embodiment, an assembly structure suitable for a 750 kv V-shaped suspension insulator string 3 in a strong wind area is specifically provided, so as to prevent the insulator string 3 and the jumper 17 from deforming and prevent the jumper 17 from straying in the strong wind area. The assembly structure mainly comprises four parts which are respectively: the symmetrical V-shaped insulator string 16, the two-to-one line clamp 7, the connecting plate 5 and the grading ring are specifically designed as follows as shown in FIGS. 2 and 3:
the V-shaped insulator strings 16 which are symmetrical comprise two symmetrically-arranged insulator strings 3, the two symmetrically-arranged insulator strings 3 form the V-shaped insulator strings 16, the V-shaped insulator strings 16 are generally connected between two framework beams 15, one end of each insulator string 3 is connected onto the connecting plate 5 through the socket head hanging plate 4, the other end of each insulator string is provided with the ball head hanging ring 2, the ball head hanging ring 2 is connected with the turn buckle 9 through the U-shaped hanging ring 1, the other end of the turn buckle 9 is connected onto the framework beams 15 through the U-shaped hanging ring 1, and the tightness degree of the insulator strings 3 can be adjusted through the turn buckle 9. The socket hanging plate 4, the ball head hanging ring 2, the U-shaped hanging ring 1 and the turnbuckle 9 are all structures commonly used in installation and connection of the insulator string 3, and are not described in detail here.
A wire jumper 17 clamping opening and a lower lead 19 clamping opening which are positioned on the same vertical line are arranged on the wire two-to-one wire clamp 7, and the vertical line is parallel to the symmetrical axis of the V-shaped insulator string 16; in the embodiment, in order to realize the stress balance of the V-shaped insulator string 16 after the jumper wire 17 is connected, two wire clamps 7 are arranged and symmetrically arranged relative to the symmetry axis of the V-shaped insulator string 16, and further, after each wire clamp 7 is connected with the jumper wire 17, the stress direction of the jumper wire 17 is balanced to the symmetry axis of the V-shaped insulator string 16. Wherein, each two become a fastener 7 respectively through right angle link plate 6 connect in on the yoke plate 5, right angle link plate 6 with the side of yoke plate 5 is mutually perpendicular, in this embodiment, right angle link plate 6 including the link plate body that is the U type form with locate the suspension bolt on this link plate body, become a fastener 7 be assembled between/be connected with two through suspension bolt, and ensure two become a fastener 7 also to hang vertically on, compare in voltage transformer or arrester downlead four become two fastener 18 that adopt usually and lead from jump wire 17 and connect, need not to lead to connect the position apart from the insulator chain about 1 meter department that hangs. As shown in fig. 4 and 5, the two-to-one wire clip 7 is designed as follows:
the two-to-one wire clamp 7 comprises a base plate 10 and a lower lead plate 14 connected to the base plate 10, wherein a suspension hole matched with a suspension bolt is formed in the base plate 10, the base plate 10 is connected to a yoke plate 5 through a right-angle suspension plate 6, two jumper wire 17 clamping openings are formed in the base plate 10, and the jumper wire 17 is connected through each jumper wire 17 clamping opening; the jumper 17 presss from both sides the mouth and includes: the jumper wire clamping seat 11 is arranged on the base plate 10, the jumper wire clamping cover 13 is matched with the jumper wire clamping seat 11, the jumper wire clamping cover 13 is connected and locked with the jumper wire clamping seat 11 through a plurality of bolts, and the end of the jumper wire 17 is locked in the jumper wire 17 clamping opening by tightening the bolts.
The lower lead plate 14 is connected and locked on the base plate 10 through a plurality of bolts, the lower lead sleeve 12 is integrally formed on the lower lead plate 14 along a vertical line, the inside of the lower lead sleeve 12 is the lower lead 19 clamping opening, when the lower lead plate is installed, the lower lead 19 penetrates into the lower lead 19 clamping opening in the lower lead sleeve, butt joint (construction of a hydraulic wire clamping tool) is achieved through a hydraulic mode, and then the lower lead 19 is connected and locked in the lower lead sleeve 12.
Become a fastener 7 through two and connect jumper 17 and down-lead 19 after, can make the tie point between the jumper 17, down-lead 19's tie point is located same vertical line, down-lead 19's extraction position direct action becomes a fastener 7 on two, two become a fastener 7 and bear on V type insulator chain 16 through yoke plate 5, even in strong wind area, the weight of down-lead and its gold utensil is fixed by insulator chain 3, insulator chain 3 and jumper 17 can not warp, and jumper 17 can not loose the thigh yet, be favorable to construction installation and later stage operation maintenance.
And thirdly, a connecting plate 5, wherein one side of the connecting plate 5 is connected with the V-shaped insulator string 16, and the other side of the connecting plate 5 is connected with the two-wire line clamp 7, in the embodiment, the connecting plate 5 is similar to an inverted trapezoid, and the connecting plate 5 has enough strength to bear the wind force in a strong wind area.
And the equalizing rings are arranged at the end parts of the two insulator strings 3, the voltage distribution on the insulator strings 3 is improved through the equalizing rings, and when the equalizing rings are installed, the equalizing rings cannot be in contact with the insulator strings 3 after the installation is finished, and a larger margin is reserved.
Example 2
As shown in fig. 6, in addition to embodiment 1, in order to further reduce the relative play and sway between the two wire harnesses 7 and ensure that the lower lead 19 and the hardware can be supported on the symmetry axis of the V-shaped insulator string 16 to the maximum extent in the windy area, in this embodiment, the assembly structure further includes: and two ends of each spring are respectively connected to the base plate 10 of the two-to-one wire clamp 7, so that relative movement between the two-to-one wire clamps 7 is restrained through each spring.
Certainly, in practical application, a plurality of springs can be replaced by elastic rubber blocks, and two ends of each elastic rubber block are respectively connected to the base plates 10 of the two-to-one wire clamps 7, so that the insulator string 3 and the jumper wires 17 can be further prevented from being deformed, and the jumper wires 17 can be prevented from being stranded.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (8)
1. An assembly structure suitable for a 750 KV V-shaped suspension insulator string in a gale area, the assembly structure comprising:
the V-shaped insulator strings are symmetrical;
the two-to-one wire clamp is provided with a jumper wire clamping opening and a lower lead wire clamping opening which are positioned on the same vertical line, and the vertical line is parallel to the symmetrical axis of the V-shaped insulator string;
one side of the yoke plate is connected with the V-shaped insulator string, and the other side of the yoke plate is connected with the two-to-one line clamp.
2. The assembly structure suitable for the 750 kilovolt V-shaped suspension insulator string in the gale region according to claim 1, wherein the V-shaped insulator string comprises two symmetrically arranged insulator strings, one end of each insulator string is connected to the connecting plate through a socket hanging plate, and the other end of each insulator string is provided with a ball head hanging ring.
3. The assembly structure of claim 1, wherein the assembly structure further comprises: and the equalizing rings are arranged at the end parts of the two insulator strings.
4. The assembly structure suitable for the 750 kilovolt V-shaped suspension insulator string in the gale region as claimed in claim 2, wherein the ball-head suspension ring is connected with a turn-buckle screw through a U-shaped suspension ring, and the other end of the turn-buckle screw is connected to the framework beam through a U-shaped suspension ring.
5. The assembly structure of claim 1, wherein the two-wire line clamp is connected to the yoke plate by a right-angle hanging plate.
6. The assembly structure suitable for the 750 kilovolt V-shaped suspension insulator string in the gale region as claimed in claim 1, wherein the two-to-one line clamps are two and are symmetrically arranged relative to the symmetry axis of the V-shaped suspension insulator string.
7. The assembly structure of claim 1, wherein the two-to-one clip comprises:
the base plate is provided with two jumper wire clamping openings;
the lower lead plate is connected to the base plate, a lower lead sleeve is integrally formed on the lower lead plate along the vertical line, and the inner portion of the lower lead sleeve is the lower lead clamping opening.
8. The assembly structure of claim 7, wherein the jumper clamp opening comprises:
a jumper wire holder arranged on the substrate;
and the jumper wire clamping cover is matched with the jumper wire clamping seat and is connected and locked with the jumper wire clamping seat through a plurality of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053223.8U CN212694910U (en) | 2020-09-18 | 2020-09-18 | Assembly structure suitable for 750 kilovolt V-shaped suspension insulator string in gale area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053223.8U CN212694910U (en) | 2020-09-18 | 2020-09-18 | Assembly structure suitable for 750 kilovolt V-shaped suspension insulator string in gale area |
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| Publication Number | Publication Date |
|---|---|
| CN212694910U true CN212694910U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022053223.8U Active CN212694910U (en) | 2020-09-18 | 2020-09-18 | Assembly structure suitable for 750 kilovolt V-shaped suspension insulator string in gale area |
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| Country | Link |
|---|---|
| CN (1) | CN212694910U (en) |
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- 2020-09-18 CN CN202022053223.8U patent/CN212694910U/en active Active
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