CN111136611B

CN111136611B - Sleeve type PT high-voltage fuse taking-out tool and method

Info

Publication number: CN111136611B
Application number: CN201911398760.1A
Authority: CN
Inventors: 张浩然; 张冬冬; 李宇其; 刘广辉; 崔国栋; 曾雨顺; 汪敏; 孟随粉; 杜健文; 李卫和; 石峰; 张健
Original assignee: Zaozhuang Power Supply Co of State Grid Shandong Electric Power Co Ltd; State Grid Corp of China SGCC
Current assignee: Zaozhuang Power Supply Co of State Grid Shandong Electric Power Co Ltd; State Grid Corp of China SGCC
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2022-01-25
Anticipated expiration: 2039-12-30
Also published as: CN111136611A

Abstract

The invention discloses a sleeve-type PT high-voltage safety take-out tool and method. The sleeve-type PT high-voltage safety take-out tool comprises a fixing seat, the lower part of the fixing seat is connected with a fixing cylinder, and a gear plate is embedded in the inner part of the fixing seat. The lower part of the gear plate cooperates with the rotating drum, and the fixed seat is also provided with a plurality of outer clamp seats distributed at equal intervals, and each outer clamp seat is provided with clamps; the rotation of the rotating drum drives the gear plate. When rotated, the gear plate drives the outer clamp seat to move inwards and separate outwards through the transmission system, so as to realize the closeness and separation of the clamps. The rotating drum is sleeved inside the fixing drum, hold the outer fixing drum, the clamp can be opened by rotating the inner drum, and then rotating the drum in the opposite direction can flexibly close the clamp to clamp the insurance that needs to be replaced. After clamping, it is convenient to remove the insurance that needs to be replaced.

Description

Sleeve type PT high-voltage fuse taking-out tool and method

Technical Field

The invention relates to the technical field, in particular to a sleeve type PT high-voltage fuse taking-out tool and a method.

Background

The operation environment of the transformer substation equipment is more and more complex, the centrally installed switchgear is largely adopted and is influenced by voltage fluctuation and multiple harmonics, high-voltage fuses of 35kV and 10kV systems are more, electric energy metering and protection measurement are influenced, the probability of protection failure or misoperation is greatly increased, and therefore the time consumption for PT high-voltage fuse replacement is effectively reduced.

When the 10kV and 35kV transformer substation inner sleeve type high-voltage PT fuse is disassembled and assembled, under the condition that insulating gloves are worn, the high-voltage PT fuse is difficult to take out at one time due to the small caliber of the sleeve. Although the caliber of the sleeve meets the requirement of operation and maintenance workers for disassembly and assembly in an unprotected state, the action is prohibited by the safety regulation for safety. In order to solve the problems, a tool for quickly assembling and disassembling the high-pressure PT fuse of the sleeve is urgently needed by a front-line operation and maintenance personnel.

Disclosure of Invention

The invention aims to solve the problems and provides a sleeve type PT high-voltage fuse taking-out tool and a method.

In order to achieve the purpose, the invention adopts the following technical scheme:

the sleeve type PT high-voltage fuse taking-out tool comprises a fixed seat, wherein the lower part of the fixed seat is connected with a fixed drum, a gear disc is embedded in the fixed seat, the lower part of the gear disc is matched with the drum to work, a plurality of outer clamp seats distributed at equal intervals are further arranged on the fixed seat, and each outer clamp seat is provided with a clamp; the rotary drum rotates to drive the gear disc to rotate, the gear disc drives the outer clamp seats to move inwards and outwards through the transmission system, and the closing and the separation of the clamps are achieved.

The gear disc comprises a gear disc upper portion and a gear disc lower portion, the outer side of the gear disc lower portion is meshed with the inner side of the upper end portion of the rotary drum through a gear, and the outer side of the gear disc upper portion is matched with the transmission system.

The transmission system comprises a sliding block, the inner side surface of the sliding block is meshed with the outer side of the upper part of the gear disc through a gear, the upper surface of the sliding block is meshed with the lower part of an inner tong seat, and the inner tong seat is connected with the outer tong seat; the slider is sleeved on the slide rod, and two ends of the slide rod are fixed on the fixed seat.

The upper surface of the sliding block is provided with parallel inclined sliding chutes, and the lower surface of the inner caliper seat is provided with parallel inclined sliding chutes meshed with the inclined sliding chutes on the upper surface of the sliding block; the sliding block is driven by the gear disc through a gear to move left and right along the sliding rod, and the sliding block simultaneously drives the inner caliper seat to move along the radial direction of the fixed seat.

The fixing seat is internally provided with a fixing hole, and two ends of the sliding rod are fixed in the fixing hole.

And an anti-skid protective layer is sleeved outside the clamp.

And insulating layers are arranged outside the fixed cylinder and the rotary cylinder.

The number of the outer clamp seats is three.

The outer clamp seat is detachably connected with the inner clamp seat.

The method for taking out the sleeve type PT high-voltage fuse taking-out tool comprises the following steps:

the clamp is extended into the sleeve to be taken;

holding the fixed cylinder and rotating the rotary cylinder;

the rotary drum drives the gear disc to rotate through gear engagement, the gear disc drives the sliding block to move along the sliding rod through gear engagement, the sliding block drives the inner clamp seat to move along the radial direction of the fixed seat, and the inner clamp seat drives the clamps to move through the outer clamp seat, so that all the clamps are gathered inwards, and a sleeve to be taken is clamped and taken out;

the drum is rotated in the reverse direction, and the tongs are separated to remove the fuse.

The invention has the beneficial effects that:

the rotary drum cover is in the inside of fixed section of thick bamboo, holds the fixed section of thick bamboo of outside, can make the clamp open through rotatory inside rotary drum, and what the reversal rotation rotary drum can be nimble again closes the insurance that needs to be changed in order to clip the insurance that needs to be changed, treats that the convenient insurance that will need to be changed after pressing from both sides tightly takes off.

The operation part of the invention is insulated, so that the high-voltage fuse can be taken out more safely; is not damaged by residual charges.

The clamp can extend into the sleeve to clamp the to-be-taken insurance, meets the requirements of most sleeves, and is not limited by the space of the sleeve opening.

Drawings

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

FIG. 2 is a schematic structural diagram of the transmission system of the present invention;

fig. 3 is a schematic structural view of the gear plate.

The automatic gear shifting mechanism comprises a clamp 1, an outer clamp seat 2, a fixed seat 3, a fixed cylinder 4, a rotating cylinder 5, a gear disc 6, a gear disc 6.1, a gear disc upper part 6.2, a gear disc lower part 3.1, a fixed hole 3.2, a sliding block 3.3, an inner clamp seat 3.4 and a sliding rod.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1-3, the telescopic PT high-voltage fuse removing tool comprises a fixed seat 3, wherein the lower part of the fixed seat 3 is connected with a fixed cylinder 4, a gear disc 6 is embedded inside the fixed seat 3, the lower part of the gear disc 6 is matched with a rotating cylinder 5 to work, a plurality of outer caliper seats 2 distributed at equal intervals are further arranged on the fixed seat 3, and each outer caliper seat 2 is provided with a clamp 1; the rotary drum 5 rotates to drive the gear disc 6 to rotate, the gear disc 6 drives the outer clamp seat 2 to move inwards and outwards through the transmission system, and the closing and the separation of the clamps are achieved.

As shown in fig. 3, the gear plate 6 comprises a gear plate upper part 6.1 and a gear plate lower part 6.2, the outer side of the gear plate lower part 6.2 is engaged with the inner side of the upper end part of the rotating drum 5 through a gear, and the outer side of the gear plate upper part 6.1 is matched with the transmission system.

As shown in fig. 2, the transmission system includes a sliding block 3.2, an inner side surface of the sliding block 3.2 is engaged with an outer side of the upper portion 6.1 of the gear disc through a gear, an upper surface of the sliding block 3.2 is engaged with a lower portion of an inner caliper seat 3.3, and the inner caliper seat 3.3 is connected with the outer caliper seat 2; the sliding block 3.2 is sleeved on the sliding rod 3.4, and two ends of the sliding rod 3.4 are fixed on the fixed seat 3. The inner pliers seat 3.3 is arranged in the fixed seat, a space is reserved in the fixed seat to accommodate the inner pliers seat, the outer pliers seat is arranged outside the fixed seat, and the fixed seat is provided with a slot for the outer pliers seat to move along the radial direction of the fixed seat.

The upper surface of the sliding block 3.2 is provided with parallel inclined sliding chutes, and the lower surface of the inner caliper seat 3.3 is provided with parallel inclined sliding chutes meshed with the inclined sliding chutes on the upper surface of the sliding block; the sliding block 3.2 is driven by the gear disc 6 through a gear to move left and right along the sliding rod 3.4, and the sliding block 3.2 simultaneously drives the inner caliper seat 3.3 to move along the radial direction of the fixed seat 3.

A fixing hole 3.1 is formed in the fixing seat 3, and two ends of the sliding rod 3.4 are fixed in the fixing hole 3.1.

An anti-skid protective layer is sleeved outside the clamp 1, and the anti-skid and protective functions are achieved.

Insulating layers are arranged outside the fixed cylinder 4 and the rotary cylinder 5, so that the operation personnel can be protected.

The number of the outer clamp seats 2 is three.

The outer clamp seat 2 is detachably connected with the inner clamp seat 3.3. The specifications of the insurance are different, the required clamps are different, in order to clamp the insurance, the clamps are arc-shaped, the outer clamp seat 2 and the inner clamp seat 3.3 can be connected through bolts, so that the outer clamp seat can be conveniently replaced, namely the specifications of the clamps 1 can be replaced, including the radian and the length of the clamps.

the clamp is extended into the sleeve to be taken;

holding the fixed cylinder and rotating the rotary cylinder;

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. Sleeve-type PT high-voltage safety take-out tool is characterized in that it comprises a fixing seat, the lower part of the fixing seat is connected with a fixing cylinder, a gear plate is embedded in the inner part of the fixing seat, and the lower part of the gear plate cooperates with the rotating cylinder to work , the fixed seat is also provided with a plurality of equally spaced outer clamp seats, and each of the outer clamp seats is provided with clamps; the rotation of the drum drives the gear plate to rotate, and the gear plate passes through the transmission system. Drive the outer clamp seat to move inwards and separate outwards, so as to realize the closeness and separation of the clamps;

The gear plate includes an upper part of the gear plate and a lower part of the gear plate, the outer side of the lower part of the gear plate is meshed with the inner side of the upper end of the rotating drum through gears, and the outer side of the upper part of the gear plate is matched with the transmission system, and the transmission system includes a slider. The inner side of the slider is engaged with the outer side of the upper part of the gear plate through gears, the upper surface of the slider is engaged with the lower part of the inner clamp seat, the inner clamp seat is connected with the outer clamp seat, and the The outer clamp base and the inner clamp base are detachably connected.

2 . The sleeve-type PT high-voltage safety removal tool according to claim 1 , wherein the sliding block is sleeved on a sliding rod, and both ends of the sliding rod are fixed on the fixing seat. 3 .

3. The sleeve-type PT high-voltage safety removal tool according to claim 2, wherein the upper surface of the slider is provided with a parallel inclined chute, and the lower surface of the inner clamp seat is provided with the slider Parallel oblique sliding grooves meshing with the inclined sliding grooves on the upper surface; the sliding block is driven by the gear plate to move left and right along the sliding rod through gears, and the sliding block simultaneously drives the inner clamp seat along the diameter of the fixed seat to movement.

4 . The sleeve-type PT high-voltage safety removal tool according to claim 2 , wherein a fixing hole is provided in the fixing seat, and both ends of the sliding rod are fixed in the fixing hole. 5 .

5 . The sleeve-type PT high-voltage safety removal tool according to claim 1 , wherein the clamp is covered with a non-slip protective layer. 6 .

6 . The sleeve-type PT high-voltage safety removal tool according to claim 1 , wherein an insulating layer is provided on the outside of the fixed cylinder and the rotating cylinder. 7 .

7 . The sleeve-type PT high-voltage safety removal tool according to claim 1 , wherein there are three outer jaws. 8 .

8. adopt the take-out method of the described sleeve type PT high-voltage safety take-out tool of claim 2, is characterized in that, comprises:

Extend the clamp into the sleeve to be taken;

Hold the fixed cylinder and rotate the rotating cylinder;

The rotating drum drives the gear plate to rotate through gear meshing, the gear plate drives the slider to move along the sliding rod through gear meshing, the slider drives the inner clamp seat to move in the radial direction of the fixed seat, and the inner clamp seat The clamps are driven to move by the outer clamp seat, so that all clamps are gathered inwardly, and the safety to be taken out is clamped to take out the sleeve;

Turn the drum in the opposite direction and the clamps separate to remove the safety.