CN203787862U - 66KV-220KV tip beam universal suspension wire clamping apparatus - Google Patents

Abstract

The utility model belongs to a special maintenance tool for transmission lines, which is used as a side hanging point of a cross arm when replacing insulators and strings of wires on straight poles and towers of 66kV-220kV lines. That is, 66kV-220kV pointed cross-arm general-purpose suspension clamp. It consists of two oppositely spaced pallets, which are connected by multiple bolts. There is a slot in the middle of the bottom surface of each pallet, and grooves are provided on the upper surfaces of both sides of the pallet. plate. The span can be changed by adjusting the bolts to meet the installation and use on various pointed cross arms. The structure is simple and reasonable, the fixing is reliable, and the use is safe. Provides a variety of pointed straight cross-arms for lifting and hanging points for wires when replacing insulators. The lifting tool exchange between the screw rod, block block and soft sling can be realized by installing and disassembling the pin rod, which realizes the versatility of a jig.

Description

66kV-220kV pointed cross-arm universal suspension clamp

technical field

The utility model belongs to a special maintenance tool for transmission lines, which is used as a side hanging point of a cross arm when the straight pole tower of a 66kV-220kV line is replaced with an insulator string and a wire is hoisted. That is, 66kV-220kV pointed cross-arm general-purpose suspension clamp.

Background technique

In the prior art, the replacement of the insulator strings in the transmission line usually requires a power outage for replacement, which affects production. There are also clamps used as side hanging points to realize live work. There are many forms of this kind of clamps in China, but none of them are universal. Usually, one clamp can only be used on one type of cross arm, and it needs to be equipped with various specifications. The clamps with screw rods do not need soft slings or pulleys. , does not possess versatility, has no promotional value, and increases maintenance costs.

Utility model content

The purpose of this utility model is to provide a cross-arm universal suspension wire fixture suitable for various 66kV-220kV pointed straight cross-arms when replacing suspension insulator suspension wires.

The technical solution of the utility model is: 66kV-220kV pointed-headed cross-arm general-purpose suspension wire fixture, including two spaced opposite clamping plates, which are connected by multiple bolts, and each clamping plate has a clamping groove in the middle of the bottom surface , grooves are respectively provided on the upper surfaces of both sides of the clamping plate, and the notch of the groove is provided with a blocking plate.

The screw lifting device sits in the groove between the clamps; the screw lifting device includes a screw rod with a nut on the screw, and beams overlapping with the groove at both ends of the nut, and the screw is covered with The lifting handle has a mounting hole at the lower end of the screw rod.

The span of the fixture can be adjusted by adjusting the bolts, so as to better avoid all kinds of cross-arm head bolts, and straddle the connecting plate and cross-arm bolts, so that it has good stability; it can also be used according to the different needs of the lifting wire , directly install the screw rod in the hanging groove at the hanging points at both ends of the fixture, and use the screw rod to lift it, or install a pin rod in the hanging groove, and hang the pulley group or the tight wire soft sling on the pin rod, Lift with blocks or soft slings.

The advantages of the utility model are: 1. The span can be changed by adjusting the bolts, which can be installed and used on various pointed cross arms. 2. Simple and reasonable structure, reliable fixing and safe use. 3. It provides a variety of pointed straight cross-arm lifting points for wires when replacing insulators. 4. The lifting tools between the screw rod, block block and soft sling can be exchanged by installing and disassembling the pin rod, which realizes the versatility of a jig.

Embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. the

Description of drawings

Fig. 1 is a schematic diagram of the structure of the utility model.

FIG. 2 is a schematic top view of the structure in FIG. 1 .

Figure 3 is a schematic diagram of the structure of the lifting screw device.

Fig. 4 is a schematic diagram of the installation position of the utility model on the pointed straight cross arm.

Fig. 5 is a schematic diagram of the side structure of Fig. 4 .

Detailed ways

See Figure 1-5, the names of the parts are as follows: clamping plate 1, bolt 2, clamping groove 3, groove 4, blocking plate 5, screw rod 6, nut 7, beam 8, lifting handle 9, mounting hole 10, Cross arm 11, cross arm bolt 12, insulator hanging point 13.

See Figures 1 and 2. The 66kV-220kV pointed-headed cross-arm general-purpose suspension clamp includes two spaced opposite clamping plates 1. The clamping plates 1 are triangular. The clamping plates 1 are connected by six bolts 2. Each clamping plate There is a card groove 3 in the middle of the bottom surface of 1, grooves 4 are respectively provided on the upper surface of both sides of the card plate 1, and the notch of the groove 4 has a sealing plate 5, and the sealing plate 5 is fixed by screws.

Referring to Fig. 3, the screw lifting device is an independent component, and one is placed on both sides of the jig. When in use, it sits in the groove 4 between the card boards 1 , that is, straddles between two card boards 1 . The screw lifting device comprises a screw rod 6, on which there is a nut 7, the two ends of the nut 7 have a beam 8 overlapping with the groove 4, the screw rod 6 is covered with a lifting handle 9, and the lower end of the screw rod 6 has a There are mounting holes 10.

Referring to Figures 4 and 5, it is a pointed cross arm of a power transmission line tower, and the cross arm 11 is composed of angle steel, and is fixed by seven cross arm bolts 12 therebetween. The rectangular dotted frame in the figure is the installation position of the fixture. The groove 4 is stuck on the vertical edge in the middle of the cross-arm. Since there are four cross-arm bolts 12 on the cross-arm 11, the fixture must be stuck on both sides of the bolts when clamping, and the distance between the bolts on different cross-arms is different, and the distance between the clamping plates 1 is required to be adjustable, so The two clamping plates 1 are connected by bolts 2 with threaded fasteners at both ends, which meets the requirements of on-site use. This device is especially suitable for a variety of 66kV-220kV pointed straight cross-arms to replace the cross-arm universal clamps when the hanging insulator suspension wires are replaced.

Put this jig on the cross arm 11, then put the screw lifting device, and connect the wires, turn the lifting handle 9 to move the screw 6 up and down, lift the wires, so that the insulator strings can be loosened, and the insulator strings can be replaced with electricity . Mounting hole 10 connects insulation pull rod, and insulation pull rod lower end has hook, and hook just can lift when being hooked on lead.

The above description is only a specific implementation of the utility model, and various illustrations do not limit the essential content of the utility model.

Claims (2)

1. the universal messenger wire jig of 66kV-220kV tip cross-arm, it is characterized in that: comprise two clamps (1) that interval is relative, between clamp (1), connect by multiple bolts (2), in the middle of each clamp (1) bottom surface, there is draw-in groove (3), clamp (1) both sides upper surface is with respectively fluted (4), and groove (4) notch is with gear shrouding (5).

2. according to the universal messenger wire jig of 66kV-220kV tip cross-arm claimed in claim 1, it is characterized in that: screw rod lifting device is traveled by the groove (4) between clamp (1); Screw rod lifting device comprises screw mandrel (6), has nut (7) on screw mandrel (6), nut (7) two ends with the crossbeam (8) of groove (4) overlap joint, the upper cover of screw mandrel (6) has lifting handle (9), screw mandrel (6) lower end is with installing hole (10).