CN215772259U

CN215772259U - Live replacement 220kV strain insulator operation device

Info

Publication number: CN215772259U
Application number: CN202121922759.7U
Authority: CN
Inventors: 陈宣林; 张宇雄; 时峰; 张海东; 毛家旺; 曹雯雯; 张方磊; 宋凯; 邓中原; 易黎; 吴恒
Original assignee: Qujing Power Supply Bureau Yunnan Power Grid Co Ltd
Current assignee: Qujing Power Supply Bureau Yunnan Power Grid Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-08
Anticipated expiration: 2031-08-17

Abstract

The utility model relates to the technical field of operating devices for replacing a tension insulator, in particular to an operating device for replacing a 220kV tension insulator in an electrified way, which comprises a first connecting locking nut, a safety block, a pulley, a stressed bracket, a bearing connecting seat, a second connecting locking nut, a yoke plate fixture, a plane stressed bearing, a pulley shaft, a through hole and a weight-reducing groove.

Description

Live replacement 220kV strain insulator operation device

Technical Field

The utility model relates to the technical field of operating devices for replacing a tension insulator, in particular to an operating device for replacing a 220kV tension insulator in an electrified way.

Background

The work item for replacing the 220kV tension insulator in an electrified way belongs to the work item which is relatively complex and needs to be completed by a plurality of people in an electrified way, for many years, when the work items for replacing the 220kV tension insulator in an electrified way, such as overhaul, staff skill training and skill competition are developed domestically, a rope ladder is hung on a lead, an operator can climb the rope ladder by self strength and can only climb to the position near an insulator string hanging point by matching with a large knife clip, an insulating pull plate and a bottle supporting frame.

The existing operation method is that an operator on a tower firstly uses 1 insulating operating rod with the length of about 4m to install a turning pulley for hanging the rope ladder on a lead, and the operator on the ground pulls the insulating rope ladder on the lead to be hung well by using an insulating rope on the turning pulley, so that the rope ladder is difficult to hang when the height and the height difference of the tower are large, and the labor intensity and the difficulty of the operator on the tower for installing the turning pulley for hanging the rope ladder are large. After the rope ladder is installed, the equipotential operating personnel can climb the rope ladder and can only carry out corresponding work by going to the position near the insulator string hanging point, the requirements on physical performance and skills of the equipotential operating personnel are high, particularly, the currently used bottle supporting frame and the pull plate have the length of about 3m, the width of about 0.4m and the weight of about 8kg, and the existing operation method comprises the following steps: the storage, the transportation, the on-site detection, the installation and the use, the difficulty of taking off the insulator string by operating personnel and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an operation device for live replacement of 220kV strain insulators, so as to solve the problems in the background technology. In order to achieve the purpose, the utility model provides the following technical scheme: live-line replacement 220kV strain insulator operation device, including atress support and yoke plate fixture, the perforation has been seted up on the atress support, run through on the board of atress support top both sides and install two pulley shafts, two all rotate on the pulley shaft and install the pulley, two the pulley is located between the board of atress support top both sides, the bottom of atress support is located perforation bottom surface position and runs through to install can 360⁰And the bottom end of the bearing connecting seat penetrates through the yoke plate fixture and is in threaded sleeve connection with a second connecting and locking nut.

Preferably, two equal fixed mounting in the both ends of pulley shaft has the safety block, improves the stability of pulley shaft through setting up the safety block, avoids the pulley to deviate from when the pulley shaft rotates.

Preferably, the top end of the bearing connecting seat is in threaded internal thread sleeve joint with a first connecting lock nut, and the position of the bearing connecting seat is limited by the first connecting lock nut and cannot move up and down.

Preferably, the connecting plate fixture is provided with a weight reduction groove in a penetrating mode, the weight of the whole equipment is reduced by the weight reduction groove, and the connecting plate fixture is convenient for a maintainer to carry.

Preferably, two the pulley is located same vertical line, is located same vertical line through setting up two pulleys, mutually supports the position of better restriction insulating rope between two pulleys.

Preferably, the bearing connecting seat is provided with a plane stressed bearing close to the bottom end surface of the stressed support, and the bearing connecting seat can be 360 degrees⁰And the top stressed bracket can still rotate along the stress direction when bearing higher stress through the plane stressed bearing.

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

in the utility model, two ends of a 220kV strain insulator are fixed on a yoke plate of an insulator string to be replaced by yoke plate clamps, the two yoke plate clamps are connected by an insulating bearing soft belt and a tightening screw rod, an operator operates the tightening screw rod to transfer tension on the insulator string to a bearing device, an insulating rope passes through a frame between two pulleys, one end of the insulating rope is tied on the 220kV strain insulator to be replaced, the two pulleys can effectively limit the position of the insulating rope, then the other end of the rope is pulled, the 220kV strain insulator to be replaced is pulled up under the action of the pulleys, the insulator can be easily assembled and disassembled without the assistance of a bottle supporting frame, so that the weight of tools required by the operator for replacing the 220kV strain insulator is reduced, the operation tools are convenient to transport, carry and detect on site, the installation operation is simple, and the labor intensity of the operator is greatly reduced, because the stress bracket is provided with the through hole, the replaced insulator can be conveniently and easily fastened firmly by the insulating rope, and the effect of convenient and flexible operation of the whole operation is achieved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front cross-sectional structural view of the present invention;

FIG. 3 is a perspective view of the yoke plate clamp and the force-bearing bracket of the present invention;

fig. 4 is a perspective view of the pulley of the present invention.

In the figure: 1. a first coupling lock nut; 2. a safety block; 3. a pulley; 4. a stressed support; 5. a bearing connecting seat; 6. a second connecting lock nut; 7. a yoke plate fixture; 8. a planar stressed bearing; 9. a pulley shaft; 10. perforating; 11. and a weight reduction groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: live-line replacement 220kV strain insulator operation device, including stress support 4 and yoke plate fixture 7, set up perforation 10 on stress support 4, run through on 4 top both sides boards of stress support and install two pulley shafts 9, all rotate on two pulley shafts 9 and install pulley 3, two pulley 3 are located between 4 top both sides boards of stress support, the bottom of stress support 4 is located perforation 10 bottom surface position and runs through and installs can 360⁰And the bottom end of the rotating bearing connecting seat 5 penetrates through the yoke plate fixture 7 and is sleeved with a second connecting lock nut 6 in a threaded manner.

In this embodiment, as shown in fig. 1, 2, and 4, the safety blocks 2 are fixedly mounted at both ends of the two pulley shafts 9, and the safety blocks 2 are arranged to improve the stability of the pulley shafts 9, so as to prevent the pulley 3 from coming off when the pulley shafts 9 rotate.

In this embodiment, as shown in fig. 1, 2 and 3, the first connection lock nut 1 is sleeved on the internal thread of the through hole 10 at the top end of the bearing connection seat 5, and the first connection lock nut 1 is arranged to limit the position of the bearing connection seat 5 from moving up and down.

In this embodiment, as shown in fig. 1, 2, and 3, a weight-reducing groove 11 is formed in the yoke plate fixture 7 in a penetrating manner, and the weight of the whole equipment is reduced by the weight-reducing groove 11, so that the maintenance personnel can conveniently carry the equipment.

In this embodiment, as shown in fig. 1, 2 and 3, two pulleys 3 are located on the same vertical line, and by arranging two pulleys 3 on the same vertical line, the two pulleys 3 are mutually matched to better limit the position of the insulating rope.

In this embodiment, as shown in fig. 2, a planar stressed bearing 8 is installed on the surface of the bottom end of the bearing connecting seat 5, which is close to the stressed support 4, and the top stressed support 4 can still rotate conveniently and fast when bearing capacity is high by arranging the planar stressed bearing 8.

The use method and the advantages of the utility model are as follows: this change 220kV strain insulator operation device with electricity is when using, and the working process is as follows:

as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the yoke plate fixture 7 and the stressed bracket 4 in the present invention are made of alloy materials with high strength and small initial elongation. During the use, link plate fixture and tighten up the lead screw both ends with soft insulating flat area earlier and link to each other, fix link plate fixture on 220kV strain insulator both ends yoke plate again, tighten up the lead screw, shift insulator string's tension to the load instrument on, then use insulating rope to pass between two pulleys 3 of support, tie 220kV strain insulator that needs to be changed insulating rope one end, two pulleys 3 can effectively restrict insulating rope's position, and can 360⁰Rotatory, pulling other end rope, under pulley 3's effect, the 220kV strain insulator that needs to be changed is pulled up, need not to use the support bottle frame supplementary, just can be light get insulator chain and take off, make the staff change the required instrument weight reduction of 220kV strain insulator operation, the operation tool site transport, carry, it is convenient to detect, installation easy operation, operation personnel intensity of labour reduces by a wide margin, through be provided with perforation 10 on atress support 4, be provided with on yoke plate fixture 7 and subtract heavy groove 11 and can reduce equipment weight by a wide margin, make things convenient for the staff to carry.

The present invention relates to circuits, electronic components and control modules all of which are well within the skill of those in the art and, needless to say, the present invention is not directed to software and process improvements.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Change 220kV strain insulator operation device with electricity, including atress support and yoke plate fixture, its characterized in that: the bearing connecting seat is characterized in that a through hole is formed in the stress support, two pulley shafts are installed on two side plates of the top of the stress support in a penetrating mode, the two pulley shafts are installed on the two pulley shafts in a rotating mode and located between the two side plates of the top of the stress support, the bottom end of the stress support is located on the bottom face of the through hole in a penetrating mode and is provided with a bearing connecting seat capable of rotating 360 degrees in a penetrating mode, a connecting plate fixture is penetrated through the bottom end of the bearing connecting seat, and a second connecting locking nut is connected with the bottom end of the bearing connecting seat in a threaded sleeve mode.

2. The live replacement 220kV strain insulator operation device of claim 1, wherein: and two ends of the two pulley shafts are fixedly provided with safety blocks.

3. The live replacement 220kV strain insulator operation device of claim 1, wherein: the top end of the bearing connecting seat is positioned in the perforated inner thread and sleeved with a first connecting lock nut (1).

4. The live replacement 220kV strain insulator operation device of claim 1, wherein: and a weight reduction groove is formed in the connecting plate fixture in a penetrating manner.

5. The live replacement 220kV strain insulator operation device of claim 1, wherein: the two pulleys are positioned on the same vertical line.

6. The live replacement 220kV strain insulator operation device of claim 1, wherein: and a plane stress bearing is arranged on the surface of the bearing connecting seat, which is close to the bottom end of the stress support.