CN210468733U - Four-to-two jumper suspension fitting - Google Patents

Abstract

The utility model discloses a four-to-two jumper suspension fitting, which comprises a suspension structure, a connecting plate, a four-wire clamp unit and a two-wire clamp unit; the middle upper part of the connecting plate is provided with a suspension structure, and the two sides of the connecting plate are respectively fixed with a four-wire clamp unit and a two-wire clamp unit; the four-wire clamp unit comprises a first wire clamp, a second wire clamp, a third wire clamp and a fourth wire clamp; the two wire clamp units comprise a fifth wire clamp and a sixth wire clamp; four wire clamps of the four-wire clamp unit are used for fixing a conventional lead, and two wire clamps of the two-wire clamp unit are used for connecting a heat-resistant lead; the connecting plate is a rectangular plate, and the wire clamps of the four-wire clamp unit are respectively arranged at four corners of the connecting plate; the fifth wire clamp and the sixth wire clamp of the two wire clamp units are vertically or horizontally arranged on the connecting plate. The utility model discloses an improve structurally, the technical personnel in the field only need according to the utility model discloses a scheme sets up, under the condition that need not change shaft tower or transformer substation door structure, can realize that new and old circuit transport capacity is the same or equivalent.

Description

Four-to-two jumper suspension fitting

Technical Field

The utility model discloses cable gold utensil field, in particular to four become two wire jumper gold utensils that dangle.

Background

In the 110kV, 220kV, 500kV and other power transmission lines with split sub-conductors adopted as conductors, the number and arrangement mode of the split sub-conductors of each phase of the conductor are different according to different voltage grades and different transmission capacities. After the transmission line is put into operation for a certain period of time, due to the requirements of load increase, system re-planning, capacity increase transformation and the like, the new line is required to carry out T connection, pi connection, capacity increase transformation and other works on the original old line.

In the engineering practice of the transformation and reconstruction, under the restriction of a plurality of factors such as the planning of a power system, the load of a tower or a substation door structure, external technical conditions and the like, the old tower or substation door structure is required to be utilized, and the newly-built line and the old line are considered to meet the condition that the transmission capacity (current-carrying capacity) is the same or equivalent. For the four-to-two jumper situation, no better structure is available to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a can change the heat-resisting wire jumper suspension clamp of split conductor arrangement and split quantity, ensure that newly-built circuit is the same with old circuit current-carrying capacity, and circuit safe and reliable moves.

The purpose of the utility model is realized through the following technical scheme:

the four-to-two jumper wire suspension fitting comprises a suspension structure, a connecting plate, a four-wire clamp unit and a two-wire clamp unit;

the middle upper part of the connecting plate is provided with a suspension structure, and the two sides of the connecting plate are respectively fixed with a four-wire clamp unit and a two-wire clamp unit;

the four-wire clamp unit comprises a first wire clamp, a second wire clamp, a third wire clamp and a fourth wire clamp; the two wire clamp units comprise a fifth wire clamp and a sixth wire clamp;

four wire clamps of the four-wire clamp unit are used for fixing a conventional lead, and two wire clamps of the two-wire clamp unit are used for connecting a heat-resistant lead;

the connecting plate is a rectangular plate, and the first wire clamp, the second wire clamp, the third wire clamp and the fourth wire clamp of the four-wire clamp unit are respectively arranged at four corners of the connecting plate; the fifth wire clamp and the sixth wire clamp of the two wire clamp units are vertically or horizontally arranged on the connecting plate.

Preferably, the first wire clamp and/or the second wire clamp and/or the third wire clamp and/or the fourth wire clamp and/or the fifth wire clamp and/or the sixth wire clamp adopt L-shaped wire clamps.

Preferably, the L-shaped clamp includes a clamping portion and an attachment plate, and the clamping portion and the attachment plate are integrally formed to form an L-shape.

Preferably, the mounting plate is fixed to the connecting plate by a stud bolt assembly.

Preferably, the mounting plate is secured to the connecting plate by at least two stud assemblies.

Preferably, the mounting plates are arranged in a square or rectangular mode, the contact parts of the mounting plates and the connecting plates are equal in width, and the parts of the mounting plates extending out of the connecting plates are equal in width or gradually reduced in width.

Preferably, the center point of the clamping portion is located at four vertices of a square with a side H.

Preferably, the connecting plate is divided into a left rectangular area and a right rectangular area, and the two rectangular areas are a first rectangular area and a second rectangular area respectively; a mounting hole is formed in the diagonal intersection point of the first rectangular area and used for mounting a fifth wire clamp; and a mounting hole is formed in the intersection point of the diagonal lines of the second rectangular area and used for mounting a sixth wire clamp.

Preferably, the four-wire clamp unit and the two-wire clamp unit are in an I shape after being projected to a plane, and the four-wire clamp unit is symmetrical along a bisector of the two-wire clamp unit.

As the preferred mode, the suspension structure comprises a parallel hanging plate and a single-link socket head hanging plate, wherein the parallel hanging plate is fixed with the connecting plate and is also connected with the single-link socket head hanging plate.

The utility model has the advantages that: the utility model discloses an improved structurally, the four-wire clamp combination is used for connecting conventional wire, and the two wire clamp combinations are used for connecting heat-resisting wire, and it is the same with old circuit current-carrying capacity to provide from structural guaranteeing newly-built circuit, the condition of circuit safe and reliable operation. The technical personnel in the field only need set up according to the utility model discloses a scheme can realize that new and old circuit transmission capacity is the same or equivalent under the condition that need not change shaft tower or door structure. The utility model discloses still structurally optimize, realized such as firm in connection, stable in structure's effect.

Drawings

Fig. 1 is one of the schematic structural diagrams of the present invention;

fig. 2 is a second schematic structural diagram of the present invention;

fig. 3 is a schematic size diagram of an L-shaped wire clamp according to the present invention;

fig. 4 is a second dimension schematic diagram of the L-shaped wire clamp of the present invention;

in the figure, 1-a first wire clamp, 2-a second wire clamp, 3-a third wire clamp, 4-a fourth wire clamp, 5-a connecting plate, 6-a parallel hanging plate, 7-a single-joint socket hanging plate, 8-a fifth wire clamp, 9-a sixth wire clamp, 10-a bolt component, 11-a conventional wire and 12-a heat-resistant wire.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

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 which is usually placed when the product of the present invention is used, or the position or the positional relationship which is conventionally understood by those skilled in the art, and is only for the convenience of describing the present invention and simplifying the description, but it is not to indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Example one

As shown in fig. 1 and 2, the four-to-two jumper suspension fitting includes a suspension structure, a connection plate 5, a four-wire clamp unit and a two-wire clamp unit;

a suspension structure is arranged at the middle upper part of the connecting plate 5, and a four-wire clamp unit and a two-wire clamp unit are respectively fixed at two sides of the connecting plate 5;

the four-wire clamp unit comprises a first wire clamp 1, a second wire clamp 2, a third wire clamp 3 and a fourth wire clamp 4; the two-wire clamp unit includes a fifth wire clamp 8 and a sixth wire clamp 9;

four wire clamps of the four-wire clamp unit are used for fixing a conventional lead 11 (such as an LGJ-400/35 four-split lead), and two wire clamps of the two-wire clamp unit are used for connecting a heat-resistant lead 12 (such as a carbon fiber, an aluminum-based ceramic fiber, an aluminum alloy and other novel leads, and the type can be

GJ-400/35)；

The connecting plate 5 is a rectangular plate, the connecting plate 5 is rectangular, the strength is high, and the manufacturing is simple. In order to secure the interval between the wires, the wire clamps are installed at both sides of the connection plate 5, so that the gap between the wires can be secured to prevent the wires from interfering with each other, compared to the case where the four wire clamp unit and the two wire clamp unit are installed at the upper and lower portions of the connection plate 5, respectively. Because the connecting wires are limited by the wire clamps on the two sides, the transmission capacities of the new and old lines can be the same or equivalent without replacing a tower or a substation door mechanism.

The arrangement structure of the hardware fitting is optimized, for example, a first wire clamp 1, a second wire clamp 2, a third wire clamp 3 and a fourth wire clamp 4 of a four-wire clamp unit are respectively arranged on four corners of a connecting plate 5; the fifth clip 8 and the sixth clip 9 of the two clip unit are vertically or horizontally arranged on the connecting plate 5. The symmetrical structure has even stress, and avoids bending and even breaking the connecting plate 5 due to uneven stress. The first wire clamp 1 and/or the second wire clamp 2 and/or the third wire clamp 3 and/or the fourth wire clamp 4 and/or the fifth wire clamp 8 and/or the sixth wire clamp 9 adopt L-shaped wire clamps. The L-shaped wire clamp is convenient to connect, the installation part can be directly extruded through one pipe section, and the manufacturing is simple.

The L-shaped clamp comprises a clamping part and an installation plate, wherein the clamping part and the installation plate are integrally formed and form an L shape. The L-shaped wire clamp manufactured by adopting the integral forming process has high strength, and is convenient for die sinking and low in manufacturing cost due to the simple structure.

The mounting plate is secured to the connecting plate 5 by a stud assembly 10. Stud subassembly 10 includes nut, stud, flat gasket and spring shim, and difficult not hard up after connecting has very strong outdoor adverse circumstances adaptability, long service life.

Individual stud subassembly 10, the skew takes place easily after connecting, for the problem of solving connection skew, the utility model discloses a mounting panel is fixed with connecting plate 5 through two stud subassemblies 10 at least. According to the principle of two points and one line, the connected object cannot rotate around the connecting point after being connected, and the technical problem that the connection is easy to deviate is solved. Preferably, the connecting plate 5 may be made of steel plate or aluminum plate or other high-strength alloy plate.

Example two

This embodiment is similar to the first embodiment, except that the present embodiment is further optimized for the connection structure.

The clamping part and the mounting plate are in an angle of 70-100 degrees, preferably 90 degrees, the L shape is further limited and optimized, the problem that the angle is too small or too large is avoided, and the connection is more convenient and quicker.

The utility model discloses optimize from a great deal of angles, adopt square arrangement or rectangle to arrange including the mounting panel, the mounting panel is aequilate with the part of connecting plate 5 contact, and the mounting panel stretches out the part aequilate or the width of connecting plate 5 and reduces gradually. The centre point of the clamping portion is located at the four vertices of a square with a side length H (e.g., H450 mm). The connecting plate 5 is divided into a left rectangular area and a right rectangular area, and the two rectangular areas are a first rectangular area and a second rectangular area respectively; a mounting hole is formed in the intersection point of the diagonal lines of the first rectangular area and used for mounting a fifth wire clamp 8; and a mounting hole is formed in the intersection point of the diagonal lines of the second rectangular area and used for mounting a sixth wire clamp 9. The four wire clamp units and the two wire clamp units are in an I shape after being projected to a plane, and the four wire clamp units are symmetrical along the bisector of the two wire clamp units. Through the optimization, the structure of the whole hardware fitting is more stable, and the connection is more convenient. And the symmetrical design is adopted, so that the uneven stress of the whole hardware is avoided, and the strength of the whole hardware is greatly improved.

EXAMPLE III

To the connection of whole device, the following suspended structure is given specially, and suspended structure includes parallel link plate 6 and single gang socket clevis 7, and parallel link plate 6 is fixed and still is connected with single gang socket clevis 7 with connecting plate 5. Through this kind of connected mode, simple and practical avoids the too big, heavier scheduling problem of weight that big connection cluster brought.

Conventional line single sub-conductor (conventional conductor 11) current carrying capacity 730A, 2920A per phase, maximum temperature 70 ° allowed, delivery capacity 642.4 MVA. The current carrying capacity of the single sub-conductor on the side of the refractory conductor 12 is 2x730A, the maximum temperature is allowed to be 150 degrees per phase 2920A, and the transport capacity is 642.4 MVA.

1050A is adopted for connecting the aluminum plates (connecting plates 5). The thickness of the aluminum plate is 15-30 mm. And (4) punching holes by adopting an extrusion process according to the arrangement mode of the split conductors and the connection mode of the L-shaped wire clamp.

And (4) casting the L-shaped clamp metal die by using an AL99.5 aluminum material. The surface of the L-shaped clamp is subjected to smoothing treatment, so that the surface quality is improved, edges and burrs generated in machining are avoided, the potential gradient value is reduced, and the energy consumption is reduced. The L-shaped clamp can be pre-punched or punched on the installation site. The specific implementation dimensions of the L-shaped clamp are shown in fig. 3 and 4.

The utility model discloses the connecting wire who has definitely injectd two clamp units is heat-resisting wire 12 (like carbon fiber, aluminium base ceramic fibre, novel wires such as aluminum alloy) to 11 division quantities of the conventional wire of reduction looks, simplify the arrangement, reduce shaft tower or door and construct the load. In order to ensure that the current-carrying capacity of a newly-built circuit is the same as that of an old circuit, ensure that the new and old circuits have no transmission bottleneck and the circuits run safely and reliably, the heat-resistant jumper wire suspension clamp which can change the number and arrangement mode of split conductors is a feasible and scientific solution. The weight of the whole hardware is about 19 kg. The utility model discloses still structurally optimize, realized such as firm in connection, stable in structure's effect.

The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.

Claims (10)

1. Four become two jumper wire gold utensil that dangles, its characterized in that: the four-wire clamp comprises a suspension structure, a connecting plate, a four-wire clamp unit and a two-wire clamp unit; the middle upper part of the connecting plate is provided with a suspension structure, and the two sides of the connecting plate are respectively fixed with a four-wire clamp unit and a two-wire clamp unit; the four-wire clamp unit comprises a first wire clamp, a second wire clamp, a third wire clamp and a fourth wire clamp; the two wire clamp units comprise a fifth wire clamp and a sixth wire clamp; four wire clamps of the four-wire clamp unit are used for fixing a conventional lead, and two wire clamps of the two-wire clamp unit are used for connecting a heat-resistant lead; the connecting plate is a rectangular plate, and the first wire clamp, the second wire clamp, the third wire clamp and the fourth wire clamp of the four-wire clamp unit are respectively arranged at four corners of the connecting plate; the fifth wire clamp and the sixth wire clamp of the two wire clamp units are vertically or horizontally arranged on the connecting plate.

2. The four-to-two jumper overhang clamp of claim 1, wherein: the first wire clamp and/or the second wire clamp and/or the third wire clamp and/or the fourth wire clamp and/or the fifth wire clamp and/or the sixth wire clamp adopt L-shaped wire clamps.

3. The four-to-two jumper overhang clamp of claim 2, wherein: the L-shaped clamp comprises a clamping part and an installation plate, wherein the clamping part and the installation plate are integrally formed and form an L shape.

4. The four-to-two jumper overhang clamp of claim 3, wherein: the mounting plate is fixed with the connecting plate through the stud bolt assembly.

5. The four-to-two jumper overhang clamp of claim 4, wherein: the mounting plate is fixed with the connecting plate through two stud assemblies at least.

6. The four-to-two jumper suspension fitting according to any one of claims 3 to 5, wherein: the mounting plates are arranged in a square or rectangular mode, the contact parts of the mounting plates and the connecting plates are equal in width, and the parts of the mounting plates extending out of the connecting plates are equal in width or gradually reduced in width.

7. The four-to-two jumper overhang clamp of claim 6, wherein: the center points of the clamping parts are positioned on four vertexes of a square with the side length H.

8. The four-to-two jumper overhang clamp of claim 7, wherein: the connecting plate is divided into a left rectangular area and a right rectangular area, and the two rectangular areas are a first rectangular area and a second rectangular area respectively; a mounting hole is formed in the diagonal intersection point of the first rectangular area and used for mounting a fifth wire clamp; and a mounting hole is formed in the intersection point of the diagonal lines of the second rectangular area and used for mounting a sixth wire clamp.

9. The four-to-two jumper suspension fitting according to any one of claims 1 to 5, wherein: the four wire clamp units and the two wire clamp units are in an I shape after being projected to a plane, and the four wire clamp units are symmetrical along the bisector of the two wire clamp units.

10. The four-to-two jumper overhang clamp of claim 1, wherein: the suspension structure comprises a parallel hanging plate and a single-link socket head hanging plate, wherein the parallel hanging plate is fixed with the connecting plate and is also connected with the single-link socket head hanging plate.

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