CN204884850U - Sleeve pipe lead wire lifting mechanism - Google Patents

Abstract

The utility model relates to a bushing lead wire lifter, which comprises a crossbeam and supporting legs. Oval through grooves are arranged symmetrically at both ends of the crossbeam. The supporting legs are respectively fixed in the two through grooves. A threaded hole is arranged at the center of the crossbeam, and the threaded hole is fixed in the center of the crossbeam. The nut lead screw is provided with a handle at the top of the nut lead screw, and a screw ferrule is arranged at the bottom of the nut lead screw, and the screw ferrule is connected with the lead wire connection assembly. The utility model is simple in structure, easy to use, saves manpower and material resources, improves work efficiency, and greatly reduces the risk of equipment damage.

Description

Casing Lead Lifter

technical field

The utility model relates to a device specially used for assembling transformers, in particular to a bushing lead wire lifter.

Background technique

The transformer is the core of the substation, an indispensable part of the substation, and the main work object of the transformer team. At present, there are two common difficulties in the installation of high-voltage bushing leads of power transformers in stations, especially in 220kv high-voltage bushings: first, the reserved lead wires are not long enough; second, the wire wrapping is too thick.

After careful investigation, there are two main reasons for the above problems:

First, after the lead wire package is wound, it is difficult to enter smoothly without adjusting to a 100% accurate position, and it is impossible to adjust to 100% accurate when hoisting by a crane at the construction site. The crane can only perform simple actions such as arm pulling and hooking, but cannot perform complex actions such as bending the arm, so it is impossible to adjust the drop point to 100% accuracy;

Second, there is a phenomenon of twisting and head twisting in the wire package itself.

It is difficult to lift the lead wire to the position required by the installation during the installation process, and the work efficiency is low.

Utility model content

In order to solve the deficiencies in the above-mentioned technologies, the purpose of this utility model is to provide a bushing lead wire lifter, which has a simple structure, is easy to use, saves manpower and material resources, improves work efficiency, and greatly reduces the risk of equipment damage.

For solving its technical problem, the technical scheme that the utility model takes is:

The bushing lead wire lifter includes a beam and supporting legs, oblong grooves are arranged symmetrically at both ends of the beam, the supporting legs are respectively fixed in the two grooves, a threaded hole is arranged at the center of the beam, and a nut screw is fixed in the threaded hole, A handle is arranged on the top of the nut screw, and a screw ferrule is arranged at the bottom of the nut screw, and the screw ferrule is connected to the lead wire connection assembly.

The utility model is provided with a detachable screw ferrule at the bottom of the nut screw, which can replace the lead wire connection assembly of a suitable size according to the size of the screw hole reserved for the lead wire. The different fixed positions in the shaped through groove can be adjusted to match with various types of transformer bushings. The top of the transformer bushing is fixedly connected with the wire clamp, and the corresponding wire clamp is provided with a fixing screw hole. When using, first put the two supports Fix the legs in the fixing screw holes, then connect the lead wire connection components with the lead wires, rotate the nut screw, and use the force of the nut screw to drive the screw ferrule, so as to lift the lead wires to the position required for installation, saving time and effort, and improving Leads improve efficiency.

Among them, the preferred scheme is:

The lead connection assembly includes a double-headed screw, one end of the double-headed screw is connected with the screw ferrule, the diameter matches the screw ferrule, the other end of the double-ended screw matches the screw hole at the end of the lead wire, and a double-headed screw is set at the end of the double-headed screw. Nuts, during the rotation of the nut screw, the double nuts can prevent the two ends of the stud screw from loosening. When encountering different types of transformer bushings, the stud screws of different sizes can be replaced.

The handle cover is provided with a non-slip rubber sleeve, which increases the buffer and friction between the hand and the handle when the nut screw is rotated, better protects the hand, and saves effort.

The supporting leg is set as a stepped circular tube, and the diameter of one end of the supporting leg away from the beam is smaller than that of the other end. The thinner end of the supporting leg is to be able to smoothly insert into the fixing screw hole of the wire clamp to fix the utility model, and the thicker supporting leg One end is to ensure that the support leg can bear a large support force during the process of rotating the nut screw, and prevent the breakage due to excessive force.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model is simple in structure, easy to use, saves manpower and material resources, improves work efficiency, and greatly reduces the risk of equipment damage. A detachable screw ferrule is provided at the bottom of the nut screw, and a suitable size lead wire connection assembly can be replaced according to the size of the reserved screw hole for the lead wire. The distance between the two support legs can be adjusted by the support leg in the oblong through groove It can be adjusted at different fixed positions inside, which can be matched with various types of transformer bushings. When in use, first fix the supporting leg in the threaded hole of the wire clip, then connect the screw lead wire connection assembly with the lead wire, and rotate the nut screw , Use the force of the nut screw to drive the screw ferrule, so as to lift the lead wire to the position required for installation, save time and effort, and improve the lead wire lifting efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a plan view of the beam of the utility model.

In the figure: 1. beam; 2. supporting leg; 3. through slot; 4. nut screw; 5. handle; 6. screw ferrule; 7. double-headed screw; 8. double nut; 9. threaded hole.

Detailed ways

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

Example 1:

As shown in Figure 1-2, the bushing lead wire lifter described in the utility model includes a beam 1 and a support leg 2, the two ends of the beam 1 are symmetrically provided with oblong slots 3, and the support legs are respectively fixed in the two slots 3 2. A threaded hole 9 is set at the center of the beam 1, and a screw nut 4 is fixed in the threaded hole 9. A handle 5 is set at the top of the screw nut 4, and a screw ferrule 6 is set at the bottom end of the nut screw 4, and the screw ferrule 6 is connected to the lead wire connection assembly .

Among them, the lead wire connection assembly includes a double-headed screw 7, one end of the double-headed screw 7 is connected with the screw ferrule 6, and the diameter matches the screw ferrule 6, and the other end of the double-headed screw 7 matches the screw hole at the end of the lead wire, and the double-headed screw 7 is connected to the screw hole at the end of the lead wire. The end of the screw 7 is provided with a double nut 8. During the rotation of the nut screw 4, the double nut 8 can prevent the two ends of the double-ended screw 7 from loosening. When encountering different types of transformer bushings, double-ended double-ended screws of different sizes can be replaced. Screw 7; the handle 5 is provided with a non-slip rubber sleeve, and the buffer and friction between the hand and the handle 5 are increased when the nut screw 4 is rotated to better protect the hand and save energy; the support leg 2 is set as a stepped circular tube The diameter of the end of the support leg 2 away from the crossbeam 1 is smaller than the other end. The thinner end of the support leg 2 is to be able to smoothly insert into the fixing screw hole of the wire clamp to fix the utility model. The thicker end of the support leg 2 is to ensure the support of the support leg. 2. During the process of rotating the nut lead screw 4, it can bear a relatively large support force, so as to prevent breakage due to excessive force.

The utility model is simple in structure, easy to use, saves manpower and material resources, improves work efficiency, and greatly reduces the risk of equipment damage. A detachable screw ferrule 6 is provided at the bottom of the nut screw 4, and a lead wire connection assembly of a suitable size can be replaced according to the size of the screw hole reserved for the lead wire. The different fixed positions in the circular slot 3 can be adjusted to match various types of transformer bushings. The top of the transformer bushing is fixedly connected to the wire clip, and the corresponding wire clip is provided with a fixing screw hole. The support leg 2 is fixed in the fixing screw hole, and then the screw lead wire connection assembly is connected with the lead wire, the screw nut screw 4 is rotated, and the force of the screw nut screw 4 is used to drive the screw ferrule 6, thereby lifting the lead wire to reach the installation requirement position, save time and effort, and improve the efficiency of lead wire lifting.

Claims (4)

1. A bushing lead wire lifter, characterized in that it comprises a crossbeam (1) and a support leg (2), the two ends of the crossbeam (1) are symmetrically provided with oblong slots (3), two through slots (3) The supporting legs (2) are respectively fixed inside, the threaded hole (9) is set at the center of the crossbeam (1), the nut screw (4) is fixed inside the threaded hole (9), the top of the nut screw (4) is provided with a handle (5), the nut A screw ferrule (6) is arranged at the bottom of the leading screw (4), and the screw ferrule (6) is connected to the lead wire connection assembly. 2. The casing lead wire lifter according to claim 1, characterized in that, the lead wire connection assembly includes a double-ended screw (7), one end of the double-ended screw (7) is connected to the screw ferrule (6), and the double-ended screw (7) is connected to the screw ferrule (6). The diameter of the screw (7) matches the screw ferrule (6), the other end of the stud screw (7) matches the screw hole at the end of the lead wire, and a double nut (8) is arranged at the end of the stud screw (7). 3. The bushing lead wire lifter according to claim 1, characterized in that, the handle (5) is covered with a non-slip rubber sleeve. 4. The bushing lead wire lifter according to claim 1, characterized in that, the support leg (2) is configured as a stepped circular tube, and the diameter of the end of the support leg (2) away from the beam (1) is smaller than that of the other end.