CN103762131A - Tool for disassembling and assembling contact finger of high-voltage fuse - Google Patents

Abstract

The invention relates to an electrical device, in particular to a tool for disassembling and assembling a contact finger of a high-voltage fuse. The high-voltage fuse finger removal tool includes a clamping part, a supporting rod, a connecting plate and a screw rod. The clamping part is provided with a U-shaped opening, the supporting rod is fixedly installed on the clamping part, and the connecting plate is fixed and installed on the supporting rod through bolts. Above, a through hole is set in the middle of the connecting plate, and a nut is fixed at the through hole of the connecting plate, and the screw rod is installed on the nut. and the pin shaft, the cylindrical part is provided with a pin shaft hole, and the pin shaft is passed through the pin shaft hole. The beneficial effects of the present invention are: the present invention provides portable, flexible and simple operation, reduces labor intensity, reduces the time for replacing melting tubes, improves work efficiency, and overcomes the difficulty and danger of high-altitude operations, which is brought about by multi-person operations. The safety pressure provides a reliable guarantee for the safe operation of power equipment.

Description

High-voltage fuse finger removal tool

technical field

The present invention relates to an electrical device, in particular to a high-voltage fuse contact removal tool. the

Background technique

The high-voltage load switch is usually combined with a high-voltage fuse to form a high-voltage load switch-fuse combination appliance. When a short-circuit fault occurs in high-voltage electrical equipment products (including: transformers, motors, etc.), high-voltage fuses can directly and instantaneously cut off the short-circuit fault current for breaking protection, which is a reliable and effective protection method. It can be installed in a variety of ways on the high-voltage load switch. It can be installed in the insulating frame, exposed to the air or between two insulators. The two ends of the fuse are connected to other conductors through the fuse card, and the middle part is the internal filler The ceramic body filled with quartz sand has a very thin fuse body as a conductive connection. When the short-circuit current passes through the fuse in the ceramic body, it is quickly fused, and the short-circuit arc generated is absorbed by the quartz sand, thereby achieving the purpose of cutting off the fault current. the

After the high-voltage fuse is blown, it cannot be used again. It needs to be taken out and replaced with a new high-voltage fuse immediately before the power equipment can continue to be used. the

The existing high-voltage fuses on the market include porcelain sleeves, fuse tubes, springs, cards and contact fingers. The fuse tubes are installed in the porcelain sleeves, one end of the spring contacts the fuse tube, and the other end of the spring contacts the contact fingers. The card and contact fingers pass through The bolts are fixed on one end of the ceramic sleeve. When the fusion tube needs to be replaced, two people are required to cooperate. One of them presses one end of the high-voltage fuse vigorously to overcome the force of the spring, and the other can complete the disassembly and installation on the card and the contact finger. If the fuse is located in the insulating frame, it will be more difficult to take out the fuse, and the above method is time-consuming and labor-intensive. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a high-voltage fuse contact finger removal tool to overcome the above-mentioned defects in the prior art. the

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is as follows: the high-voltage fuse finger removal tool includes a clamping part, a support rod, a connecting plate and a screw rod, the clamping part is provided with a U-shaped opening, and the support rod is fixedly installed on the On the clamping part, and the two support rods are located on both sides of the U-shaped opening, the connecting plate is fixed on the supporting rod by bolts, a through hole is set in the middle of the connecting plate, and the mounting nut is fixed at the through hole of the connecting plate. The screw rod is installed on the nut, and the screw rod includes a contact installed at one end of the screw rod, a cylindrical part and a pin shaft arranged at the other end of the screw rod, the cylindrical part is provided with a pin hole, and the pin shaft passes through the pin shaft hole. the

A layer of rubber layer is arranged at the U-shaped opening of the clamping part, and the rubber layer covers the edge of the upper surface and the lower surface of the clamping part close to the U-shaped opening. the

The contact includes a fixed part and a contact part. A screw hole is set in the fixed part, and the fixed part is fixedly installed on one end of the screw rod through the screw hole of the fixed part. The contact part is cylindrical, and the cylindrical contact part The lug that can accommodate the contact fingers ensures that the contact fingers are intact during the process of removing the contact fingers. the

When in use, the clamping part is clamped between the two protrusions of the porcelain sleeve of the high-voltage fuse. By rotating the pin shaft, the contact of the screw rod is pressed against the contact finger of the high-voltage fuse, and then disassembled or assembled on the card and The bolt on the contact finger, and then reversely rotate the pin shaft, so that the contact of the screw rod slowly leaves the contact finger of the high-voltage fuse, thereby completing the replacement of the fuse tube of the high-voltage fuse, due to the U-shaped opening of the clamping part A rubber layer is set at the place to ensure that the porcelain sleeve will not be damaged during the disassembly and assembly of the high-voltage fuse contact finger, and the use of the high-voltage fuse contact finger removal tool reduces labor intensity and achieves reduced replacement of the fuse tube It improves work efficiency, overcomes the difficulty and danger of high-altitude operations, and the safety pressure brought by multi-person operations, providing a reliable guarantee for the safe operation of power equipment. the

Compared with the prior art, the present invention has the beneficial effects that: the high-voltage fuse contact finger removal tool provided by the present invention is light, flexible to use, simple to operate, reduces labor intensity, reduces the time for replacing the fuse tube, and improves work efficiency. Efficiency overcomes the difficulty and danger of high-altitude operations, and the safety pressure brought by multi-person operations, providing a reliable guarantee for the safe operation of power equipment. the

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the high-voltage fuse contact finger removal tool of the present invention. the

Fig. 2 is a three-dimensional structural schematic diagram of another viewing angle of the high-voltage fuse contact removal tool of the present invention. the

Fig. 3 is a schematic diagram of the structure of the rear view of the high-voltage fuse finger removal tool of the present invention. the

In the figure: clamping part 1, support rod 2, connecting plate 3, screw rod 4, U-shaped opening 11, nut 31, contact 41, cylindrical part 42, pin shaft 43, rubber layer 5, fixing part 411, contact Section 412. the

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings. Referring to Figures 1 to 3, the high-voltage fuse finger removal tool includes a clamping part 1, a support rod 2, a connecting plate 3 and a screw rod 4, and the clamping part 1 is provided with a U-shaped U-shaped opening 11, the support rod 2 is fixedly installed on the clamping part 1, and the two support rods 2 are located on both sides of the U-shaped opening 11, the connecting plate 3 is fixed on the supporting rod 2 by bolts, and the middle position of the connecting plate 3 A through hole is provided at the through hole of the connecting plate 3, and a nut 31 is fixed at the through hole of the connecting plate 3. The screw mandrel 4 is installed on the nut 31. The cylindrical part 42 and the pin shaft 43 , the cylindrical part 42 is provided with a pin shaft hole (not shown), and the pin shaft 43 is passed through the pin shaft hole (not shown). A layer of rubber layer 5 is provided at the U-shaped opening 11 of the clamping portion 1 , and the rubber layer 5 covers the edges of the upper surface and the lower surface of the clamping portion 1 close to the U-shaped opening 11 . The contact 41 includes a fixed part 411 and a contact part 412, and a screw hole (not shown) is provided on the fixed part 411, and the fixed part 411 is fixedly installed on the threaded rod 4 through a screw installed in the screw hole (not shown) of the fixed part 411. At one end, the contact portion 412 is cylindrical, and the cylindrical contact portion 412 can accommodate the contact piece (not shown) of the contact finger (not shown), so as to ensure that the contact finger (not shown) is displayed) intact. the

Claims (3)

1. a high-tension fuse fingertip dismantling device, its spy is: high-tension fuse fingertip dismantling device comprises clamping part, support bar, connecting plate and screw mandrel, clamping part arranges U-shaped shape opening, support bar is fixedly installed on clamping part, and two support bars are positioned at the both sides of U-shaped shape opening, connecting plate is bolted and is installed on support bar, place, connecting plate centre position arranges through hole, in the through hole of connecting plate fixed installation nut, screw mandrel is installed on nut, screw mandrel comprises the contact that is installed on screw mandrel one end, be arranged at columnar portion and the bearing pin of the screw mandrel other end, columnar portion arranges pin shaft hole, bearing pin is placed through in pin shaft hole.

2. high-tension fuse fingertip dismantling device according to claim 1, its spy is: the U-shaped shape opening part in clamping part arranges one deck rubber layer, and this rubber layer is coated on the upper surface of clamping part and the lower surface edge near U-shaped shape opening part.

3. high-tension fuse fingertip dismantling device according to claim 1, its spy is: contact comprises fixed part and contact site, in fixed part, screw is set, the screw that is installed on fixed part by screw is fixedly installed in fixed part one end of screw mandrel, and contact site is tubular type.

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