CN218386700U - Novel split conductor spacer for preventing rubber tile from vibrating and displacing - Google Patents

Abstract

The utility model relates to a novel split wire spacer bar for preventing the vibration displacement of rubber tiles, which belongs to the technical field of power transmission line fittings. The technical solution is: the main groove (7) of the cable clamp and the groove (8) of the clamp gland are both cross-shaped grooves, and the first rubber tile boss (9) and the second rubber tile boss (10) are both cross-shaped The boss, the cross-shaped boss of the rubber tile first boss (9) and the rubber tile second boss (10) are respectively connected with the cross-shaped groove of the main body groove (7) of the wire clamp and the groove of the wire clamp gland (8) Matching, connect the clamp main body (3), clamp cover (4), rubber tile 1 (5) and rubber tile 2 together. The beneficial effects of the utility model: prevent the rubber tiles from shifting or falling off under the condition of wind vibration, avoid the occurrence of the wire clamp metal part of the spacer bar from wearing out the wire, enhance the degree of freedom limit ability in the direction of the line, and solve the gap The broken strands and broken wires caused by the wear and tear of the rod and wire clips have long been an engineering problem that has plagued the safe and stable operation of transmission lines.

Description

A new type of split wire spacer to prevent the vibration displacement of rubber tiles

technical field

The utility model relates to a novel split conductor spacer for preventing rubber tiles from vibrating and shifting, and belongs to the technical field of power transmission line fittings.

Background technique

The spacer rod refers to the fittings installed on the split wires to fix the distance between the split wires, so as to prevent the wires from whipping each other, suppress the breeze vibration and the sub-gap vibration. At present, under the condition of wind vibration (including sub-gap vibration, etc.), spacers and other hardware clamps wear wires and lead to serious defects and accidents of broken wires frequently occur in the power grid, involving 500kV and 220kV voltage level lines. The cause of the accident is analyzed through the test; the test process: use the wind vibration test equipment to impose various wind vibration conditions to simulate the actual operation on the spacers of the same manufacturer and model of the failed line until the defects and failure phenomena that occur on the spot are reproduced; the test The results show that the metal part of the cable clamp begins to wear the conductor after the rubber tile falls off, and it can effectively protect the conductor when the rubber tile is wrapped. Therefore, under the conditions of wind vibration (including sub-gap vibration, etc.), the clamp structure can protect the wires from wear without the rubber tiles shifting or falling off, improve the reliability of the line operation, reduce the accidents of broken lines, and thus improve the line transmission. ability.

Existing technologies reduce or avoid accidents by preventing galloping, but the effect is not ideal, for example: Chinese Patent No. 2014202427721 titled "Four-split wire rotary anti-galling damping spacer", Chinese Patent No. 2017106716038 titled " Sub-conductor spacer and its configuration method” and so on, the connection structure between the main body of the wire clamp, the gland of the wire clamp and the rubber tile in the prior art is: the main body of the wire clamp and the gland of the wire clamp are respectively provided with cylindrical grooves, and the two The tops of the two rubber tiles are equipped with cylindrical bosses, through which the bosses on the two rubber tiles are matched with the cylindrical grooves on the main body of the wire clamp and the gland of the wire clamp respectively, and the main body of the wire clamp and the gland of the wire clamp are matched with the rubber tiles. They are fixedly connected together, and the two rubber tiles hold the passing wires tightly. However, the cylindrical clamping slot has almost no freedom limit ability in the direction of the line. Under the working conditions of wind vibration (including sub-gap vibration, etc.), the displacement or fall-off of the spacer clamps may occur from time to time, and the conductors will be directly affected by the spacer. The wear and tear of the rod and wire clamps caused the wires to cause strand and wire breakage problems. The above technical problems have long plagued the safe and stable operation of transmission lines.

Utility model content

The purpose of this utility model is to provide a new type of split wire spacer that prevents the vibration displacement of rubber tiles, and prevents the rubber tiles of the spacer clamps from shifting or falling off under the condition of wind vibration (including secondary pitch vibration, etc.), so as to avoid The metal part of the spacer wire clip wears the wire, which solves the above-mentioned technical problems in the prior art.

The technical scheme of the utility model is:

A new type of split conductor spacer to prevent the vibration displacement of rubber tiles, including a clamp main body, a clamp gland, rubber tile 1 and rubber tile 2, and the wire clamp main body and the wire clamp gland are respectively provided with wire clamp body grooves and wire clamps. Clamping cover groove, rubber tile 1 and rubber tile 2 tops are respectively provided with rubber tile 1 boss and rubber tile 2 boss, through rubber tile 1 boss and glue tile 2 boss respectively connected with the groove of the main body of the clamp and the cable The grooves of the clamping cover are matched to form a spacer clamp, and the rubber tile 1 and the rubber tile 2 hold the wire tightly; the special feature is that the groove of the main body of the clamp and the groove of the clamp gland are cross-shaped grooves The first and second bosses of the rubber tile are cross-shaped bosses, and the cross-shaped bosses of the first and second bosses of the rubber tile are respectively connected with the grooves of the main body of the wire clamp and the groove of the gland of the wire clamp. The cross-shaped grooves are matched to connect the main body of the cable clamp, the cover of the cable clamp, the first rubber tile and the second rubber tile.

The bottoms of the rubber tile 1 and the rubber tile 2 are respectively provided with a rubber tile 1 groove and a rubber tile 2 groove, the rubber tile 1 groove and the rubber tile 2 groove are semicircular grooves, and the rubber tile 1 and the rubber tile The bottoms of the two are matched together, and the wire is clamped in the first groove of the rubber tile and the second groove of the rubber tile.

One end of the main body of the wire clamp and the gland of the wire clamp is connected together by a connecting pin, and clamps are respectively provided at both ends of the connecting pin; the other end of the main body of the wire clamp and the gland of the wire clamp is hinged together by a pin.

The spacer bar clamp is installed on the spacer bar frame through fastening bolts.

The two rubber tiles of the first rubber tile and the second rubber tile have the same structure.

The number and position of the spacer rods of the utility model are determined according to the gear distance and the operating environment. The structure of the utility model can not only be used for split conductor spacers, but also can be used for conventional hanging and strain clamps.

The utility model optimizes the fixing structure between the clamp main body and the clamp gland in the spacer bar clamp and the two rubber tiles from a cylindrical groove to a cross groove. Correspondingly, the fixing structure on the top of the two rubber tiles Upgraded from cylindrical bumps to cross bumps. On the wind vibration test equipment, the same vibration frequency and amplitude are applied, and the vibration conditions include linear, torsional, horizontal, and vertical, after the same number of vibrations. In the prior art, the rubber tiles between the wires of the spacer rods have obvious displacement, or even fall off; the rubber tiles with the wire clips of the spacer rods in the utility model have almost no displacement or very small displacement (less than 3mm).

The beneficial effect of the utility model is to prevent the rubber tile from being displaced or falling off under the condition of wind vibration (including the vibration of the second gear, etc.), to avoid the occurrence of the metal part of the spacer bar clamping the wire to wear the wire, and to enhance the freedom along the line direction. The high limit ability solves the engineering problem that has long plagued the safe and stable operation of transmission lines caused by broken strands and disconnected wires caused by the wear and tear of spacer clamps.

Description of drawings

Figure 1 is the overall assembly diagram of the spacer rod in the embodiment of the utility model;

Fig. 2 is a schematic diagram of the structure of the main body of the wire clip according to the embodiment of the utility model;

Fig. 3 is a schematic diagram of the side view structure of the main body of the wire clip according to the embodiment of the utility model;

Fig. 4 is a schematic diagram of the structure of the cable clamp gland according to the embodiment of the present invention;

Figure 5 is a schematic diagram of the side view structure of the clamp gland of the embodiment of the utility model;

Fig. 6 is a schematic diagram of the structure of the rubber tile of the embodiment of the utility model;

Fig. 7 is a schematic diagram of the side view structure of the rubber tile of the embodiment of the utility model;

Fig. 8 is a structural schematic diagram of a top view of the rubber tile of the embodiment of the utility model;

Fig. 9 is a schematic diagram of a rotating sectional structure of embodiment A-A of the utility model;

Fig. 10 is a schematic diagram of the utility model embodiment B-B rotating cross-sectional structure;

Fig. 11 is a schematic cross-sectional structure diagram of an embodiment of the utility model;

Fig. 12 is a side view structural diagram of an embodiment of the utility model;

In the figure: spacer frame 1, spacer clamp 2, clamp main body 3, clamp gland 4, rubber tile 1 5, rubber tile 2 6, wire clamp body groove 7, wire clamp gland groove 8, Rubber tile one boss 9, glue tile two boss 10, glue tile one groove 11, glue tile two groove 12, wire 13, pin 14, fastening bolt 15, connecting pin 16, clamp 17, sliding sleeve 18 , Shock-absorbing rubber pad 19.

Detailed ways

Below by accompanying drawing, the utility model is further described in conjunction with embodiment.

A new type of split wire spacer bar for preventing the vibration displacement of rubber tiles, comprising a clamp main body 3, a clamp gland cover 4, rubber tile 1 5 and rubber tile 2 6, and the wire clamp main body and the wire clamp gland are respectively provided with a wire clamp body Groove 7 and clamp gland groove 8, rubber tile 1 5 and rubber tile 2 6 are provided with rubber tile 1 boss 9 and rubber tile 2 boss 10 respectively, through rubber tile 1 boss 9 and rubber tile 2 The boss 10 is matched with the groove 7 of the main body of the wire clamp and the groove 8 of the wire clamp gland respectively to form a spacer wire clamp 2, and the rubber tile 1 5 and the rubber tile 2 6 hold the wire 13 tightly; the special feature is that: the The main groove 7 of the cable clamp and the groove 8 of the clamp gland are both cross-shaped grooves, the first rubber tile boss 9 and the second rubber tile boss 10 are cross-shaped bosses, the first rubber tile boss 9 and the rubber tile The cross-shaped boss of the second boss 10 is matched with the cross-shaped groove of the main body groove 7 of the wire clamp and the cross-shaped groove 8 of the wire clamp gland respectively, and the wire clamp main body 3, the wire clamp gland 4, the rubber tile one 5 and the glue Tiles two and six are connected together.

The bottoms of the first rubber tile 5 and the second rubber tile 6 are respectively provided with a groove 11 of the first rubber tile and a second groove 12 of the rubber tile, the first groove 11 of the rubber tile and the second groove 12 of the rubber tile are semicircular grooves, The bottoms of the first rubber tile 5 and the second rubber tile 6 are matched together, and the wire 13 is clamped in the groove 11 of the first rubber tile and the second groove 12 of the rubber tile.

The number and position of the spacer rods of the utility model are determined according to the gear distance and the operating environment. For example: There are four-split wire spacers, six-split wire spacers, eight-split wire spacers, and ten-split wire spacers.

The structure of the utility model can not only be used for split conductor spacers, but also can be used for conventional hanging and strain clamps.

With reference to the accompanying drawings, the present embodiment is a four-split spacer bar, one end of the clamp main body and the clamp gland is connected together by a connecting pin 16, and clamps 17 are respectively provided at both ends of the connecting pin 16; The other end of wire clip gland is hinged together by pin 14.

The spacer bar clamp 2 is installed on the spacer bar frame 1 through fastening bolts 15 .

The fastening bolt 15 matches the sliding sleeve 18 and the shock-absorbing rubber pad 19 to install the spacer bar clamp 2 on the spacer bar frame 1 .

Open the wire clamp cover 4, place the wire 13 between the wire clamp main body 3 and the wire clamp cover 4, place the rubber tile 1 5 and the rubber tile 2 6 to wrap the wire, the rubber tile 1 boss 9 and the glue tile 2 boss 10 The cross-shaped bosses correspond to the cross-shaped grooves of the wire clamp main body groove 7 and the wire clamp gland groove 8 respectively. Press the wire clamp gland 4 and tighten the fixing bolts to provide sufficient pressing force, on the one hand to prevent the rubber tiles from falling off, and at the same time to prevent the bolts from loosening during the vibration process.

Claims (5)

1. A new type of split wire spacer bar to prevent the vibration displacement of the rubber tile, including the main body of the clamp (3), the gland of the clamp (4), the first rubber tile (5) and the second rubber tile (6), the main body of the wire clamp and the The groove of the main body of the wire clamp (7) and the groove of the wire clamp gland (8) are respectively set on the cover of the wire clamp, and the top of the rubber tile 1 (5) and the top of the rubber tile 2 (6) are respectively provided with the first rubber tile (9) ) and the second boss of the rubber tile (10), through the first boss of the rubber tile (9) and the second boss of the rubber tile (10) respectively match the groove of the main body of the wire clamp (7) and the groove of the gland of the wire clamp (8) , to form a spacer bar clamp (2), rubber tile one (5) and rubber tile two (6) to hold the wire (13); it is characterized in that: the groove of the main body of the wire clip (7) and the groove of the wire clamp gland The grooves (8) are cross-shaped grooves, the first rubber tile boss (9) and the second rubber tile boss (10) are cross-shaped bosses, and the first glue tile boss (9) and the second glue tile boss ( 10) The cross-shaped boss matches the cross-shaped groove of the main body groove (7) of the wire clamp and the groove of the wire clamp cover (8) respectively, and the main body of the wire clamp (3), the wire clamp cover (4), Glue tile one (5) and glue tile two (6) are connected together. 2. A novel split wire spacer for preventing rubber tiles from vibrating and shifting according to claim 1, characterized in that: the bottoms of the rubber tiles 1 (5) and 2 (6) are respectively provided with a rubber tile 1 concave Groove (11) and glue tile two grooves (12), glue tile one groove (11) and glue tile two grooves (12) are semicircular grooves, glue tile one (5) and glue tile two ( 6) Match the bottoms together, and clamp the wire (13) in the first groove of the rubber tile (11) and the second groove of the rubber tile (12). 3. A new type of split wire spacer for preventing rubber tile vibration displacement according to claim 1 or 2, characterized in that: the main body of the wire clamp and one end of the clamp gland are connected together by a connecting pin (16) , the two ends of the connecting pin (16) are respectively provided with clamps (17); the main body of the wire clamp and the other end of the gland of the wire clamp are hinged together by the pin (14). 4. A new split wire spacer for preventing rubber tile vibration displacement according to claim 1 or 2, characterized in that: the spacer clamp (2) is installed on the spacer frame by fastening bolts (15) (1) up. 5. A new type of split wire spacer for preventing rubber tile vibration displacement according to claim 4, characterized in that: the fastening bolt (15) matches the sliding sleeve (18) and the shock-absorbing rubber pad (19), Install the spacer clamps (2) on the spacer frame (1).

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