CN204230831U - A kind of wear-resistant ground wire string based on trench structure - Google Patents

Abstract

The utility model provides a wear-resistant ground wire string based on a groove structure, which is used for fixing and suspending the ground wire of an overhead power transmission line. Hanging plate, Z-shaped right-angle hanging plate, connecting plate and pre-twisted suspension clamp, the ground wire insulator is set between the connecting plate and the pre-twisted suspension clamp, and the pre-twisted suspension clamp is provided with the ground wire. Compared with the prior art, the wear-resistant ground wire string based on the groove structure provided by the utility model has a simple structure and is easy to install, and can effectively improve the wear resistance of connecting fittings in the ground wire string, thereby improving the overall wear resistance of the ground wire string. Wear resistance, to ensure the safe operation of transmission lines.

Description

A wear-resistant ground string based on groove structure

technical field

The utility model relates to a ground wire string, in particular to a wear-resistant ground wire string based on a groove structure.

Background technique

The ground wire string of the overhead transmission line is used to fix and hang the ground wire on the straight pole tower, and is also used to support the ground wire on the transposition tower. It is an important fitting in the transmission line for tension resistance, fixing and pulling the ground wire on the corner tower. string type.

With the westward shift of the energy strategy, the development of energy resources in Xinjiang and other western regions will be further intensified. Since the large-scale energy base in the western region is more than 2,400 kilometers away from the load center in the central and eastern regions, it is a better way to solve this contradiction by establishing large thermal power and hydropower bases in the energy center in the western region and transmitting electric energy to the load center with large capacity and long distances. However, long-distance transportation will face the influence of strong winds and sandstorms in the west. Under the influence of this environment, the wear of the ground wire strings will intensify, and eventually lead to accidents due to wear and tear of hardware, which will cause great harm to the transmission line.

For this reason, it is necessary to design a kind of wear-resistant ground wire string, which can reduce the wear between the fittings, and can be used normally on the above-mentioned long-distance transmission line to ensure the safe operation of the transmission line.

Utility model content

In order to solve the above problems, the utility model provides a wear-resistant ground wire string based on a groove structure, which has a simple structure and is easy to install, and can effectively improve the wear resistance of the connecting fittings in the ground wire string, thereby improving the wear resistance of the ground wire string. The overall wear resistance ensures the safe operation of the transmission line.

The purpose of this utility model is to adopt following technical scheme to realize:

The utility model provides a wear-resistant ground wire string based on a groove structure. The ground wire string is used for fixing and suspending the ground wire in the overhead transmission line. The improvement is that the ground wire string includes sequentially arranged The trunnion hanging plate 1, the ZBD type right angle hanging plate 2, the Z type right angle hanging plate 3, the connecting plate 4 and the pre-twisted suspension clamp 5, and the ground is set between the connecting plate 4 and the pre-twisted suspension clamp 5 A wire insulator 6, and the pre-twisted suspension clamp 5 is provided with a ground wire.

Wherein, the trunnion hanging plate 1 is a plate-like structure with a hollow circular shaft horizontally provided at one end, and an opening is horizontally provided at the other end, and the direction of the opening is perpendicular to the axial direction of the hollow circular shaft. A stud bolt is arranged, and the two ends of the stud bolt are sequentially provided with a washer, a nut and a closed pin from the inside to the outside.

Wherein, the ZBD type right-angle hanging plate 2 is a plate-like structure with a U-shaped groove at one end, and a round hole at the other end; the opening direction of the round hole is consistent with the slotting direction of the U-shaped groove, The two side walls of the U-shaped groove are provided with holes perpendicular to the opening direction of the circular hole along the same horizontal direction.

Wherein, the trunnion hanging plate 1 is set in the U-shaped groove of the ZBD type right-angle hanging plate 2 through bolts, and the bolts are provided with closed pins.

Wherein, the two ends of the Z-shaped right-angle hanging plate 3 are respectively provided with grooves, and the slotting directions of the grooves are perpendicular to each other, and the two side walls of the groove are respectively provided with holes along the same horizontal direction.

Wherein, the ZBD-type right-angle hanging plate 2 is set in the groove of the Z-type right-angle hanging plate 3 through bolts, and the bolts are provided with closed pins.

Wherein, the connecting plate 4 is an isosceles triangular plate structure, and its three corners are respectively provided with connecting holes, and the top corners of the connecting plate 4 are set in the grooves of the Z-shaped right-angle hanging plate 3 through bolts, The bolt is provided with a closed pin; the two bottom corners of the connecting plate 4 are respectively connected to the pre-twisted suspension clamp 5 through the ground wire insulator 6 .

Wherein, the pre-twisted suspension clamp 5 includes a clamp hanging plate 54, a U-shaped hoop 58 and a suspension casing 59; the clamp hanging plate 54 is a plate structure with a groove at one end, and the other end is horizontal. A round hole is provided, the opening direction of the round hole is perpendicular to the slotting direction of the groove, and the two side walls of the groove are provided with holes parallel to the opening direction of the round hole along the same horizontal line. The groove of the clamping plate 54 is connected with the ground wire insulator 6 through bolts, and the other end thereof is connected with the U-shaped hoop 58 through bolts; the hanging casing 59 is arranged in the U-shaped hoop 58 .

Wherein, the outer layer pre-twisted wire 511 and the inner layer pre-twisted wire 512 arranged concentrically are respectively arranged in the said hanging casing 59, and the inner layer pre-twisted wire 512 is provided with a ground wire.

Wherein, a rubber liner 510 is provided between the outer pre-twisted wire 511 and the hanging casing 59 .

Compared with the prior art, the beneficial effects achieved by the utility model are:

1. The wear-resistant ground wire string based on the groove structure provided by the utility model adopts the groove mechanism of "surface-to-surface" contact, instead of the previous "point-to-point" or "point-to-surface" contact connection mode, The contact area of the connecting fittings is increased, thereby improving the strength of the overall structure.

2. The wear-resistant ground wire string based on the groove structure provided by the utility model can effectively improve the wear resistance of each connecting fitting in the ground wire string, thereby improving the overall wear resistance of the ground wire string and effectively ensuring the safety of the transmission line. safe operation.

3. The wear-resistant ground wire string based on the groove structure provided by the utility model has a simple structure, is convenient to disassemble and assemble, and can be adjusted in time according to the actual use situation.

4. The wear-resistant ground wire string based on the groove structure provided by the utility model adopts the structure and connection method of the connecting fittings, which greatly improves the service life of the ground wire string in actual use and has good economy .

Description of drawings

Figure 1: Schematic diagram of the structure of the wear-resistant ground wire string based on the groove structure provided by the utility model;

Fig. 2: a schematic diagram of the front view structure of the trunnion hanging plate provided by the utility model;

Fig. 3: a schematic diagram of the side view structure of the trunnion hanging plate provided by the utility model;

Fig. 4: The schematic diagram of the front view structure of the ZBD type right-angle hanging board provided by the utility model;

Figure 5: A schematic diagram of the side view structure of the ZBD type right-angle hanging board provided by the utility model;

Fig. 6: The schematic diagram of the front view structure of the Z-type right-angle hanging board provided by the utility model;

Figure 7: a schematic diagram of the side view structure of the Z-shaped right-angle hanging plate provided by the utility model;

Figure 8: A schematic diagram of the front view of the pre-twisted suspension clamp provided by the utility model;

Among them: 1. Trunnion hanging plate; 2. ZBD type right angle hanging plate; 3. Z type right angle hanging plate; 4. Connecting plate; 5. Pre-twisted suspension clamp; 6. Ground wire insulator; 11. Stud bolt ;12, washer; 13, nut; 14, closed pin; 21, bolt; 22, nut; 23, closed pin; 31, bolt; 32, nut; 33, closed pin; 51, bolt; 52, nut; 53, Closed pin; 54, wire clip hanging plate; 55, bolt; 56, nut; 57, closed pin; 58, U-shaped hoop; 59, hanging casing; 510, rubber gasket; 512. The inner layer is pre-twisted.

Detailed ways

In order to make the above purpose, features and advantages of the utility model more obvious and understandable, the specific implementation of the utility model will be further described in detail below in conjunction with the accompanying drawings.

The wear-resistant ground wire string based on the trough structure provided in this embodiment is used for fixing and suspending the ground wire in the overhead power transmission line, as shown in Figure 1, including the trunnion hanging plate 1, which is sequentially connected by bolts from top to bottom. ZBD type right-angle hanging plate 2, Z-type right-angle hanging plate 3, connecting plate 4, ground wire insulator 6 and pre-twisted suspension clamp 5. The connecting plate 4 is an isosceles triangular plate structure, and its three corners are respectively provided with connection holes. The suspension clamp 5 is connected.

Wherein, as shown in Figures 2 to 3, the trunnion hanging plate 1 is a plate-shaped structure with a hollow circular shaft horizontally provided at one end, and an opening is horizontally provided at the other end, and the direction of the opening is perpendicular to the axial direction of the hollow circular shaft. A stud bolt 11 is arranged in the hollow circular shaft, and the two ends of the stud bolt 11 are provided with a washer 12, a nut 13 and a closed pin 14 sequentially from the inside to the outside.

Wherein, as shown in Figures 4 to 5, the ZBD type right-angle hanging plate 2 is a plate structure with a U-shaped groove at one end, and a round hole at the other end; the opening direction of the round hole is consistent with the opening direction of the U-shaped groove. The direction of the groove is consistent, and the two side walls of the U-shaped groove are provided with holes perpendicular to the opening direction of the round hole along the same horizontal line. The trunnion hanging plate 1 is arranged in the U-shaped groove of the ZBD type right-angle hanging plate 2 through the bolt 21, and the bolt 21 is provided with a nut 22 and a closed pin 23.

Wherein, as shown in Figures 6 to 7, grooves are respectively arranged at both ends of the Z-shaped right-angle hanging plate 3, and the grooves are perpendicular to each other, and holes are respectively arranged on the two side walls of the groove along the same horizontal direction. The ZBD type right-angle hanging plate 2 is arranged in the groove of the Z-type right-angle hanging plate 3 through a bolt 31, and the bolt 31 is provided with a nut 32 and a closed pin 33.

Wherein, as shown in FIG. 8 , the pre-twisted suspension clamp 5 includes a clamp hanging plate 54 , a U-shaped hoop 58 and a suspension casing 59 . The wire clamp hanging plate 54 is a plate-shaped structure with a groove at one end, and a circular hole at the other end. A hole parallel to the opening direction of the round hole; the groove of the clamp hanging plate 54 is connected to the ground wire insulator 6 through a bolt 51, the bolt 51 is provided with a nut 52 and a closed pin 53, and the other end of the clamp hanging plate 54 is passed through a bolt 55 Connected with the U-shaped hoop 58, the bolt 55 is provided with a nut 56 and a closed pin 57; the hanging casing 59 is arranged in the U-shaped hoop 58. Outer layer pre-twisted wires 511 and inner layer pre-twisted wires 512 are respectively arranged concentrically in the suspension casing 59 , and a rubber gasket 510 is arranged between the outer layer pre-twisted wires 511 and the suspension casing 59 .

The wear-resistant ground wire string based on the groove structure provided in this embodiment adopts the groove connection of "surface-to-surface" contact, which replaces the previous "point-to-point" or "point-to-surface" contact connection method, increasing the The contact area between the connecting fittings improves the strength of the overall structure and improves the wear resistance between the connecting fittings.

The mature groove structure is adopted, and its structural strength is easily guaranteed. At the same time, it has the characteristics of simple processing and convenient installation. The groove structure can effectively improve the wear resistance of the connecting hardware in the ground wire string, thereby improving the overall wear resistance of the ground wire string and effectively ensuring the safe operation of the transmission line.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Those of ordinary skill in the art should understand that the specific implementation of the present utility model can be modified or equivalent with reference to the above examples. Replacement, any modification or equivalent replacement that does not depart from the spirit and scope of the present utility model is within the protection scope of the pending claims.

Claims (10)

1. the wear-resistant ground wire string based on trench structure, described ground wire string is used for ground wire that is fixing and that hang in overhead transmission line, it is characterized in that: described ground wire string comprises the trunnion hanging panel (1), ZBD type right angle link plate (2), Z-type right angle link plate (3), yoke plate (4) and the pre-hinged catenarian cable cleat (5) that set gradually, arrange ground insulator (6) between described yoke plate (4) and pre-hinged catenarian cable cleat (5), described pre-hinged catenarian cable cleat arranges ground wire in (5).

2. as claimed in claim 1 based on the wear-resistant ground wire string of trench structure, it is characterized in that, described trunnion hanging panel (1) is provided with the platy structure of Hollow Cylindrical Shaft for one end level, other end level is provided with perforate, described perforate direction is vertical with the axis direction of Hollow Cylindrical Shaft, arrange stud in described Hollow Cylindrical Shaft, described stud two ends are provided with packing ring, nut and closed pin from the inside to the outside successively.

3., as claimed in claim 2 based on the wear-resistant ground wire string of trench structure, it is characterized in that, the platy structure of described ZBD type right angle link plate (2) U-shaped groove for one end is provided with, other end level is provided with circular hole; The perforate direction of described circular hole is consistent with the fluting direction of U-shaped groove, and described U-shaped groove two side is provided with the hole vertical with described circular hole perforate direction along same level line direction.

4., as claimed in claim 3 based on the wear-resistant ground wire string of trench structure, it is characterized in that, described trunnion hanging panel (1) is arranged in the U-shaped groove of described ZBD type right angle link plate (2) by bolt, and described bolt is provided with closed pin.

5. as claimed in claim 4 based on the wear-resistant ground wire string of trench structure, it is characterized in that, link plate (3) two ends, described Z-type right angle arrange groove respectively, and the fluting direction of described groove is mutually vertical, and described groove two side is respectively equipped with hole along same level line direction.

6. it is characterized in that based on the wear-resistant ground wire string of trench structure as claimed in claim 5, described ZBD type right angle link plate (2) is arranged in the groove of described Z-type right angle link plate (3) by bolt, and described bolt is provided with closed pin.

7. as claimed in claim 6 based on the wear-resistant ground wire string of trench structure, it is characterized in that, described yoke plate (4) is isosceles triangle platy structure, its three angles are respectively equipped with connecting hole, the drift angle of described yoke plate (4) is arranged in the groove of described Z-type right angle link plate (3) by bolt, and described bolt is provided with closed pin; Two base angles of described yoke plate (4) are connected with pre-hinged catenarian cable cleat (5) respectively by ground insulator (6).

8. as claimed in claim 7 based on the wear-resistant ground wire string of trench structure, it is characterized in that, described pre-hinged catenarian cable cleat (5) comprises wire clamp link plate (54), U-shaped anchor ear (58) and pendency sheath body (59); Described wire clamp link plate (54) is for establishing reeded platy structure in one end, other end level is provided with circular hole, the perforate direction of described circular hole is vertical with the fluting direction of groove, described groove two side is provided with the hole parallel with described circular hole perforate direction along same level line direction, groove and the described ground insulator (6) of described wire clamp link plate (54) are bolted, and its other end is connected with described U-shaped anchor ear (58) by bolt; In described U-shaped anchor ear (58), described pendency sheath body (59) is set.

9. as claimed in claim 8 based on the wear-resistant ground wire string of trench structure, it is characterized in that, be respectively equipped with the outer preformed armor rods (511) and internal layer preformed armor rods (512) that arrange with one heart in described pendency sheath body (59), in described internal layer preformed armor rods (512), ground wire is set.

10. as claimed in claim 9 based on the wear-resistant ground wire string of trench structure, it is characterized in that, between described outer preformed armor rods (511) and pendency sheath body (59), be provided with rubber packing (510).