CN103247961A - V-shaped pull rod fixture for live working of changing large-tension tension insulator - Google Patents

Abstract

The invention belongs to electric power construction tools and particularly relates to a V-shaped pull rod fixture for live working of changing a large-tension tension insulator. One end of each of three insulation pulling plates (1) which are axially connected and one end of a stringing screw I (6) are fixed onto V-shaped fixtures (2) at two ends with hinging plates (15) at equal intervals, insulator strings (3) are axially mounted on the V-shaped fixture between every two insulation pulling plates (1) with two connection boards (3-1), one end of a stringing screw II (6-1) is connected to the other end of each insulation pulling plate (1), screw connecting boards (8) are mounted at the other ends of the stringing screw I (6) and the stringing screw II (6-1), a large ratchet (9) is in threaded connection to a stringing screw rod (7) between two screw connecting boards (8), a ratchet fixing bracket (11) is arranged below the a large ratchet (9) and the screw connecting boards (8) and parallel to the stringing screw rod (7), a small ratchet (14) is mounted on the ratchet fixing bracket (11), and a screw die (12) is mounted on the small ratchet (14). The fixture has more advantages, the overhaul timeliness and the power supply reliability are guaranteed during operation, and the work efficiency is improved.

Description

Replacement of large tension tension insulator V-type tie rod fixture with electricity

technical field

The invention belongs to electric power construction tools, in particular to a V-shaped pull rod fixture for live replacement of large tension tension insulators.

Background technique

Replacing tension insulators on power transmission and transformation lines is a complex, highly technical, difficult, and risky operation in the maintenance of power transmission lines. The insulators of power transmission lines operate under high tension for a long time. Affected by nature, there are many zero-value and burst phenomena of insulators, which affect the safe and stable operation of the line. In order to ensure the safe and stable operation of the power grid, it is necessary to replace the deteriorated insulators in time. If the replacement in a power failure not only affects social benefits, but also brings troubles to people's lives, most of the live replacement uses a big-knife fixture. This kind of fixture can replace the tensile insulator, but it is quite difficult to replace when encountering high-tension tensile insulation. When the tension is tightened, the lead screw wears seriously and is very laborious, which increases the labor intensity of the maintenance personnel, and the fixture is easily damaged, which is very unfavorable to safety.

Contents of the invention

The object of the present invention is to overcome the above-mentioned technical deficiencies, and provide a V-shaped tie rod clamp for live replacement of large-tension tension insulators with fast replacement of insulators, good safety performance, and reduced labor intensity.

The technical solution adopted by the present invention to solve the technical problem is: live replacement of large tension tension insulator V-type pull rod fixture includes insulating pull plate, V-shaped fixture, insulator, fastening bolt, fastening nut, which is characterized in that the V-shaped tie rod at both ends One end of the three insulating pull plates and one end of the tight wire nut one are fixed axially with a hinge plate at equidistant intervals on the clamp, and two ends are axially connected on the V-shaped clamp between every two insulating pull plates. Install the insulator string on the connecting plate, one end of the tight wire nut 2 is connected to the other end of the insulating pull plate with a fastening bolt and a fastening nut, and a wire nut connecting plate is installed on the other end of the tight wire nut 1 and the tight wire nut 2 , the screw nut connecting plate and the tight wire screw nut 1 and the tight wire screw nut 2 are all threaded with the tight wire screw 1 and the tight wire screw 2, and are threaded on the tight wire screw between the two screw nut connecting plates The big ratchet, the two sides of the big ratchet are fixed with splints, the bottom of the big ratchet and the screw nut connecting plate is provided with a ratchet fixing frame at the level of the tight thread screw, the small ratchet is installed on the ratchet fixing frame, and the small ratchet is equipped with a die, and the die is connected. wrench.

The beneficial effect of the present invention is that: the V-type pull rod jig for large tension tension insulators can be replaced with electricity, which can meet the requirements of replacing the entire string, segment and any single insulator of tension double insulators of 220KV transmission lines, especially in the combination of large tension and liveliness When the gap is not enough, it is more advantageous to use this fixture, which can ensure the timeliness of maintenance and the reliability of power supply during operation, improve work efficiency, and ensure the safety of operators.

Description of drawings

The following will be described in detail with examples in conjunction with the accompanying drawings.

Figure 1 is a schematic diagram of the structure of a V-shaped tie rod fixture for replacing a large-tension tension insulator with power on.

Fig. 2 is an enlarged view of the structure of the tightening device in Fig. 1 .

In the figure, 1-insulation pull plate; 2-V-shaped clamp; 3-insulator string; 3-1-two-joint plate; 4-fastening bolt; -1- Tighten thread nut two; 7-Tighten thread screw; 7-1-Tighten thread screw one; 7-2-Tighten thread screw two; 8-Screw nut connecting plate; Splint; 11-ratchet fixed frame; 12-die; 13-wrench; 14-small ratchet; 15-hinge plate.

Detailed ways

For the embodiment, referring to accompanying drawings 1 and 2, the V-shaped pull rod fixture for the replacement of large-tension tension insulators with electricity is fixed on the V-shaped fixture 2 at both ends at equidistant intervals and fixed with hinged plates 15 to axially connect three insulating pull plates 1 One end of one end and one end of tightening wire nut one 6, on the V-shaped clamp 2 between every two insulating pull plates 1, the insulator string 3 is installed axially with two connecting plates 3-1, and the tightening wire nut two 6- One end of 1 is fixedly connected with the other end of insulating pull plate 1 with fastening bolt 4 and fastening nut 5. Install the nut connecting plate 8 on the other end of the tight wire nut one 6 and the tight wire nut two 6-1, the tight wire screw one 7-1 and the tight wire screw two 7-2 are threaded to connect the tight wire nut One 6 and tight thread screw nut two 6-1, on the tight thread leading screw 7 between two screw nut connecting plates 8, threaded large ratchet 9, fixed with splint 10 on the both sides of big ratchet 9. Below the two nut connecting plates 8 and the big ratchet 9, a ratchet fixing frame 11 is horizontally arranged on the tightening lead screw 7, and a small ratchet 14 is installed on the ratchet fixing frame 11, and a die 12 is arranged below the small ratchet 14. 12 connection wrench 13.

The method of using the V-shaped pull rod clamp for replacing the large tension tension insulator with electricity is to install the V-shaped clamp 2 and the tight wire screw between the V-shaped clamp 2 at the two ends of the insulator string 3 with two boards 3-1 7-1. Tighten the lead screw 2 7-2 Connect the insulating pull plate 1, install the bottle holder under the insulator string 3, adjust the small ratchet 14 with the wrench 13 and the die 12, and tighten the V-shaped fixture through the large ratchet 9 2 Tight-wire screw one 7-1 and tight-wire screw two 7-2 at both ends, after transferring the load of the insulator string 3, the entire string, segment or single insulator that needs to be replaced can be replaced. When tightening, operate in the opposite direction to loosen the tightening lead screw 1, 2 7-1, 7-2 and then recover.

Claims (1)

1. charged for replacement hightension strain insulator V-type pull bar jig, comprise insulation arm-tie (1), V-type jig (2), insulator (3), fastening bolt (4), clamp nut (5), it is characterized in that the V-type jig (2) at two ends becomes equi-spaced apart to use articulated slab (14) fixed axis to an end that connects three insulation arm-ties (1) and ends of stringing screw one (6), on the V-type jig between per two insulation arm-ties (1), axially adorn insulator string (3) with two yoke plates (3-1), one end of stringing screw two (6-1) is connected the other end of insulation arm-tie (1) with clamp nut (5) with fastening bolt (4), another termination dress screw connecting plate (8) at stringing screw one (6) and stringing screw two (6-1), screw connecting plate (8) and stringing screw one (6) and stringing screw two (6-1) all are threaded with stringing leading screw one (7-1) and stringing leading screw two (7-2), stringing leading screw (7) between two screw connecting plates (8) large ratchet (9) that is threaded, large ratchet (9) two sides are fixing with clamping plate (10), be provided with ratchet fixed mount (11) with stringing leading screw (7) level on the below of large ratchet (9) and screw connecting plate (8), adorn little ratchet (14) at ratchet fixed mount (11), little ratchet (14) is provided with screw die (12), and screw die (12) connects spanner (13).

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