CN213093845U - Maintenance-free double-anti-loosening damper - Google Patents

Abstract

The utility model discloses a maintenance-free double-anti-loosening damper, which comprises a steel strand, a fastener, a wire clamp and 2 wire clamp pressing plates, wherein the lower end sleeve of the wire clamp is sleeved on the steel strand, the left end and the right end of the steel strand are respectively provided with a large hammer head and a small hammer head, and the 2 wire clamp pressing plates are connected on the wire clamp through the fastener; and a wire penetrates through the wire clamp pressing plate and the wire clamp, and the wire clamp pressing plate and the wire clamp are matched to clamp the wire tightly so that the damper is fixed on the wire. The utility model effectively improves the stability of the grip of the wire clamp on the conducting wire and the steel strand; the arc contact form of the wire clamp cushion block and the wire clamp pressing plate and the long and narrow through hole of the wire clamp can be suitable for wires with different diameters, and the product universality is improved.

Description

Maintenance-free double-anti-loosening damper

Technical Field

The utility model relates to an electric power fitting technical field, concretely relates to non-maintaining two anti-loosening damper.

Background

Generally, the span of a high-voltage overhead line is large, the tower is also high, and when the wire is blown by strong wind, strong vibration can occur. The working conditions at the wire suspension are most unfavourable when the wire vibrates. The long-time and periodic vibration causes fatigue damage to the lead, and leads to strand breaking and wire breaking of the lead. Sometimes, strong vibration also damages fittings and insulators.

To prevent and mitigate wire vibration (wind induced periodic oscillations in the vertical plane, creating a series of standing waves of insignificant amplitude throughout the span), a number of vibration dampers are typically installed near the suspended wire clamps. When the wire vibrates, the damper moves up and down to generate an acting force which is asynchronous or even opposite to the vibration of the wire, so that the amplitude of the wire can be reduced, and the vibration of the wire can be eliminated.

During the operation of the overhead transmission line, the phenomenon that the damper slips often occurs, and various adverse effects are brought to the safe operation and operation maintenance work of the transmission line. The utility model aims at providing a two locking damper of non-maintaining realizes dual locking effect through structural optimization, reduces damper probability of sliding, improves electric wire netting operation security, reduces transmission line operation maintenance cost.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a two locking damper of non-maintaining through increasing fastener clamp plate quantity, increases the fastener and to the performance of holding tightly of wire, can effectively reduce the maintenance cost of damper among the circuit antivibration system.

The utility model adopts the following technical proposal:

a maintenance-free double-anti-loosening damper comprises a steel strand, a fastener, a wire clamp and 2 wire clamp pressing plates, wherein the lower end of the wire clamp is sleeved on the steel strand, a large hammer head and a small hammer head are respectively arranged at the left end and the right end of the steel strand, and the 2 wire clamp pressing plates are connected to the wire clamp through the fastener; and a wire penetrates through the wire clamp pressing plate and the wire clamp, and the wire clamp pressing plate and the wire clamp are matched to clamp the wire tightly so that the damper is fixed on the wire.

Preferably, the middle part of the wire clamp pressing plate is provided with a pressing plate through hole for penetrating a bolt; the lower end is provided with a supporting part for supporting, and the upper part is provided with a circular arc-shaped pressing plate groove so that the wire clamp pressing plate can be tightly attached to the wire.

Preferably, the right side of the wire clamp through hole, which is formed in the middle of the wire clamp and used for connecting a fastener, is provided with a circular arc-shaped wire clamp groove, so that the wire clamp is attached to a lead more tightly; the left side is equipped with the supporting part that the fastener recess is used for cooperating the fastener clamp plate, prevents that the supporting part from sliding on the fastener.

Preferably, the fastener is a bolt.

Preferably, a wire clamp cushion block is arranged between the bolt and the wire clamp pressing plate.

Preferably, both ends all are equipped with the crimping pipe about the steel strand wires, big tup and little tup are all through the crimping pipe crimping on the steel strand wires.

The utility model has the advantages that:

1. the utility model effectively improves the stability of the grip of the wire clamp on the conducting wire and the steel strand; the arc contact form of the wire clamp cushion block and the wire clamp pressing plate and the long and narrow through hole of the wire clamp can be suitable for wires with different diameters, and the product universality is improved.

2. The utility model has simple structure and is beneficial to production and manufacture; the maintenance cost of the damper in the line vibration-proof system can be effectively reduced.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a main view of the wire clamp of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the wire clamp of the present invention;

fig. 5 is a front view of the clamp pressing plate of the present invention;

fig. 6 is a schematic view of the cross-sectional structure of the wire clamp pressing plate of the present invention;

fig. 7 is a three-dimensional structure diagram 1 of the present invention;

fig. 8 is a perspective view of the present invention in fig. 2;

shown in the drawings

1-crimping pipe, 2-large hammer, 3-steel strand, 4-small hammer, 5-fastener, 9-wire clamp, 10-wire clamp pressing plate and 11-wire clamp cushion block;

91-clamp through hole, 92-clamp groove, 93-clamp groove, 101-press plate through hole, 102-support part and 103-press plate groove;

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 to 8, a maintenance-free double-anti-loosening damper comprises a steel strand 3, a fastener 5, a wire clamp 9 and two wire clamp pressing plates 10, wherein the lower end of the wire clamp 9 is sleeved on the galvanized steel strand 3, the left end and the right end of the steel strand 3 are respectively sleeved with a crimping pipe 1, the crimping pipes 1 are connected with a large hammer head 2 and a small hammer head 4 in a pressure combination mode, and the two wire clamp pressing plates 10 are connected to the wire clamp 9 through bolts; a wire penetrates between the wire clamp pressing plate 10 and the wire clamp 9, the wire clamp pressing plate 10 and the wire clamp 9 are matched through bolts to clamp the wire tightly, and the damper is fixed on the wire.

The middle part of the wire clamp pressing plate 10 is provided with a pressing plate through hole 101 for penetrating a bolt; the lower end of the wire clamp is provided with a supporting part 102 for supporting, and the upper part of the wire clamp is provided with a pressing plate groove 103 with an arc-shaped end surface, so that the wire clamp pressing plate 10 can be tightly attached to a wire, and the damage of the wire clamp 9 to the wire can be effectively reduced.

The middle part of the wire clamp 9 is provided with a wire clamp through hole 91 for connecting a bolt, and the right side of the wire clamp through hole 91 is provided with a wire clamp groove 92 with an arc-shaped end surface, so that the wire clamp 9 is tightly attached to a lead and the damage to the lead is reduced; the left side is provided with a wire clamp recess 93 for engaging a support portion 102 of the wire clamp press plate 10 to prevent the support portion 102 from slipping on the wire clamp 9.

In the assembling process, the wire clamp 9 is matched with the wire clamp pressing plate 10, the supporting part 102 of the wire clamp pressing plate 10 abuts against the wire clamp groove 92 of the wire clamp 9, the pressing plate groove 103 is matched with the wire clamp groove 92, under the action of 2 bolts, the holding force of the pressing plate groove 103 and the wire clamp groove 92 on a lead is more stable, and the anti-loosening effect of the wire clamp 9 is enhanced;

the wire clamp cushion block 11 is arranged between the bolt and the wire clamp pressing plate 10, so that the bolt is connected with the middle of the wire clamp pressing plate 10 more firmly, the pretightening force of the bolt to the wire clamp 9 and the wire clamp pressing plate 10 can be effectively ensured, the pressure of the bolt to the wire clamp 9 and the wire clamp pressing plate 10 is reduced, stress concentration is avoided, and the service life of related parts can be effectively prolonged.

Compared with the traditional vibration-proof hammer wire clamp, the wire clamp 9 is wider (accommodating 2 wire clamp pressing plates simultaneously) but simpler in structure, and is beneficial to production and manufacturing; compared with the traditional damper, the clamp is wider, and the contact area between the lower end of the clamp and the galvanized steel strand 3 is larger, so that the possibility of slippage between the clamp 9 and the steel strand 3 is lower; the top of the wire clamp can accommodate the assembly of two groups of fasteners 5, so that the grip force on the wire is more stable;

as shown in fig. 7 to 8, the damper may be different in the relative positions of the wire clamps 9 with respect to the large and small hammers 2 and 4.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.

Claims (6)

1. The utility model provides a non-maintaining two anti-loosening damper, its characterized in that, includes steel strand wires (3), fastener (5), fastener (9) and 2 fastener clamp plates (10), the lower pot head of fastener (9) is established on steel strand wires (3), both ends are equipped with big tup (2) and little tup (4) respectively about steel strand wires (3), 2 fastener clamp plates (10) are connected on fastener (9) through fastener (5).

2. The maintenance-free double-anti-loosening damper as claimed in claim 1, wherein a pressing plate through hole (101) is formed in the middle of the wire clamping pressing plate (10) for allowing a fastener (5) to penetrate through, a supporting portion (102) is arranged at the lower end of the wire clamping pressing plate for supporting, and a circular-arc-shaped pressing plate groove (103) is formed above the wire clamping pressing plate.

3. The maintenance-free double-anti-loosening damper as claimed in claim 2, wherein the middle of the wire clamp (9) is provided with a wire clamp through hole (91) for connecting the fastener (5), the right side of the wire clamp through hole (91) is provided with a circular arc-shaped wire clamp groove (92), and the left side is provided with a wire clamp groove (93).

4. A maintenance-free, double anti-loosening damper as claimed in claim 1, wherein the fastening means (5) is a bolt.

5. A maintenance-free double anti-loosening damper as claimed in claim 4, characterized in that a cleat block (11) is provided between the bolt and the cleat plate (10).

6. The maintenance-free double-anti-loosening damper as claimed in claim 1, wherein the left end and the right end of the steel strand (3) are both sleeved with crimping pipes (1), and the large hammer head (2) and the small hammer head (4) are both crimped on the steel strand (3) through the crimping pipes (1).

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