CN215897174U

CN215897174U - Exposed conductor wire overhauling and isolating device

Info

Publication number: CN215897174U
Application number: CN202122031642.6U
Authority: CN
Inventors: 周永明; 杨坚; 凌征明; 彭志高; 李昌; 蒋林峰; 邹杰; 邓瑞铭
Original assignee: Guangxi Liuzhou Iron and Steel Group Co Ltd; Guangxi Iron and Steel Group Co Ltd
Current assignee: Guangxi Liuzhou Iron and Steel Group Co Ltd; Guangxi Iron and Steel Group Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-02-22
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses an exposed conductor wire overhauling and isolating device, which relates to the technical field of bridge crane power supply line installation, and comprises an overhauling section which is formed by integrally forming a connecting body and an isolating block, and is characterized in that: the isolating block extends outwards from the narrow surface of the long edge of the connecting body, the wide surface of the connecting body is provided with two long holes arranged along the length direction, and the two long holes are symmetrical to the two sides of the isolating block; two exposed conductive wires are respectively fixedly connected to the maintenance section through bolts penetrating through corresponding long holes, and the gap between the inner ends of the two exposed conductive wires and the two sides of the isolation block is 5-10 mm. The utility model solves the problem that the maintenance section of the existing sliding contact line is easy to be broken or damaged by extrusion due to expansion with heat and contraction with cold of the conductive wire.

Description

Exposed conductor wire overhauling and isolating device

Technical Field

The utility model relates to the technical field of bridge crane power supply line installation, in particular to a maintenance isolating device for an exposed conducting wire.

Background

The exposed conductive wire refers to a conductive wire only with a conductor but without an insulating layer, the exposed conductive wire used by the slide contact wire of the power supply system of the bridge crane is a high-conductivity steel-based copper conductor, most of the existing slide contact wires are formed by connecting a plurality of exposed conductive wires, and adjacent exposed conductive wires are connected through an overhauling section. The overhaul section is an important overhaul isolation device in a bridge crane power supply system, is usually made of insulated bakelite, can be clamped between two exposed conductive wires to play an isolation role, and can fill a gap between the two exposed conductive wires. The current maintenance section comprises an integrally formed connector and an isolating block, the isolating block protrudes out of the connector and is arranged on the connector in the middle, a plurality of bolt positioning holes are formed in the connector, two exposed conductive wires are respectively fixedly connected with the maintenance section through a plurality of bolts penetrating through the corresponding bolt positioning holes, and after the installation is completed, one end of each exposed conductive wire is abutted to the isolating block or a gap of about one millimeter is formed. In the practical use process of the overhaul section, the bolt positioning hole on the connecting body limits the installation position of the bolt, so that the gap between the filled isolating block and the exposed conducting wire has no allowance, the difference between the high-temperature area of the stacking position and the environment temperature area of the non-stacking position is large, and the temperature difference caused by cold and hot weather changes is added, the power supply conducting wire of the crane easily causes slide wire dislocation due to expansion and contraction, the overhaul section is broken or damaged due to extrusion, the position of the power receiving current collector passing through the dislocation can be damaged, even the phase line short circuit is caused due to the fact that the current collector is damaged and falls, and the power failure condition of the short circuit trip whole span is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an exposed conducting wire overhauling and isolating device which can solve the problem that an overhauling section of an existing sliding contact wire is easily broken or damaged by extrusion due to expansion caused by heat and contraction caused by cold of the conducting wire.

In order to solve the problems, the utility model adopts the technical scheme that: the exposed conductor wire overhauling and isolating device comprises an overhauling section which is formed by integrally forming a connecting body and an isolating block, wherein the isolating block extends outwards from a narrow surface of a long edge of the connecting body; two exposed conductive wires are respectively fixedly connected to the maintenance section through bolts penetrating through the corresponding long holes, and the gap between the inner ends of the two exposed conductive wires and the two sides of the isolation block is 5-10 mm.

In the above technical solution for overhauling the isolation device with the exposed conductive wire, a more specific technical solution may also be: the thickness of the isolation block is the same as that of the connecting body.

Further, the distance from the outer end of the long hole to the outer end of the connecting body is 20-30 mm.

Furthermore, the long edge of the connecting body is provided with an assembly chamfer matched with the exposed conducting wire.

Furthermore, the device is provided with two maintenance sections, and two exposed conducting wires are clamped between the two maintenance sections.

Furthermore, three bolt holes are formed in the contact part of each exposed conducting wire and the overhaul section.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

1. two long holes are formed in a connecting body of the maintenance section, and when the exposed conducting wire expands with heat and contracts with cold, a connected bolt can slide in the long holes to realize automatic adjustment, so that the maintenance section is prevented from being broken by tension, and a gap between the exposed conducting wire and the isolating block is prevented from being damaged by the expanded exposed conducting wire, and a sliding block of the current collector can smoothly slide through the gap between the isolating block and the exposed conducting wire; the isolating block is arranged on one side of the narrow surface of the connecting body and in the penetrating direction of the long hole, and can be fixedly connected with the I-shaped steel-based copper conductor better.

2. The connector and the spacer have the same thickness, and interference with the sliding of the collector can be prevented.

3. The edge distance from the outer end of the long hole to the outer end of the connecting body is limited, so that materials can be saved, and the device can obtain enough strength and long hole length.

4. The connector sets up the chamfer that matches with exposed conductor wire, but quick installation location improves the alignment rate of the slot hole of overhauing the section and the bolt hole of exposed wire.

5. Set up two and overhaul the exposed conductor wire of section clamping, the quantity setting of bolt hole has effectively improved the steadiness and the reliability of connecting.

6. The device prolongs the service life of the current collector and the isolating device, the overhauling and isolating device is not easy to damage, the failure rate of a power supply system is reduced, and the cost for replacing equipment is reduced; the labor cost of maintenance is reduced. The damage of the maintenance isolation device not only can cause the damage of the conducting wire, but also takes a great deal of manpower and time for repairing and adjusting the conducting wire and the maintenance isolation device, and the novel maintenance isolation device can distribute more personnel strength to other equipment maintenance work; the safety of a power supply system is improved, short circuit and trip accidents are reduced, and personal safety and equipment safety are guaranteed.

Drawings

Fig. 1 is a schematic diagram of a structure of a bare conductive wire for a trolley wire.

Fig. 2 is a bottom view of fig. 1.

Fig. 3 is a right side view of fig. 1.

Fig. 4 is a schematic view of the connection structure of the bare conductor inspection and isolation device.

Fig. 5 is a bottom view of fig. 4.

Fig. 6 is a schematic structural view of the service section.

Fig. 7 is a top view of fig. 6.

The reference numbers illustrate: 1. exposing the conductive wire; 1-1, a steel substrate; 1-1, bolt holes; 1-2, copper conductor; 2. a maintenance section; 2-1, a linker; 2-11, long holes; 2-2, an isolation block; 3. and (4) bolts.

Detailed Description

The utility model will be further described in detail with reference to the following examples:

the exposed conductor overhauling and isolating device is used for connecting the sliding contact lines shown in the figures 1 to 3, the exposed conductor 1 of the sliding contact line is a steel-based copper conductor and consists of a steel substrate 1-1 and a copper conductor 1-2 embedded at one end of the steel substrate 1-1, and in order to improve the reliability of the connection of the exposed conductor 1 and the overhauling and isolating device, three bolt holes 1-1 are arranged at the contact part of each exposed conductor 1 and the overhauling and isolating device, so that the exposed conductor 1 can be fixedly connected with the overhauling and isolating device through three bolts 1-1.

The exposed conducting wire overhauling and isolating device shown in the figures 4 and 5 comprises two overhauling sections 2, wherein the two overhauling sections 2 are arranged up and down oppositely, two exposed conducting wires 1 are clamped in the middle, and each exposed conducting wire 1 is fixedly connected with the upper overhauling section 2 and the lower overhauling section 2 through three bolts 3, so that the two exposed conducting wires 1 can be stably clamped between the two overhauling sections 2. As shown in fig. 6 and 7, the overhaul section 2 includes a connecting body 2-1 and an isolating block 2-2 which are integrally formed, the connecting body 2-1 is a flat cuboid used for being connected with two exposed conductive wires 1, the isolating block 2-2 is used for isolating the two exposed conductive wires 1, the thickness of the isolating block 2-2 is the same as that of the connecting body 2-1, and the isolating block 2-2 extends outwards from the narrow surface of the long side of the connecting body 2-1 and is centrally arranged on one long side of the connecting body 2-1. Two long holes 2-11 arranged along the length direction are formed in the wide surface of the connecting body 2-1, the long holes 2-11 penetrate through the connecting body 2-1 in the thickness direction, the two long holes 2-11 are symmetrical to the two sides of the isolating block 2-2, two exposed conducting wires 1 are fixedly connected to the connecting body 2-1 of the maintenance section 2 through bolts 3 penetrating through the corresponding long holes 2-11 respectively, and the gap between the inner ends of the two exposed conducting wires 1 and the two sides of the isolating block 2-2 is 5-10 mm; the two ends of the long hole 2-1 are semi-circles, the center distance of the semi-circles at the two ends of the long hole 2-11 is larger than the maximum center distance of the three bolt holes 1-1 corresponding to the same exposed conducting wire 1, and the distance from the outer end of the long hole 2-11 to the nearest outer end of the connector 2-1 is 20-30 mm. The exposed conductor wire 1 is provided with a chamfer capable of reducing internal stress, and in order to quickly install the maintenance section 2, the long edges at two sides of the connector 2-1 are provided with assembly chamfers matched with the exposed conductor wire 1.

The exposed conducting wire overhauling and isolating device has a temperature compensation function, the position of the bolt 3 in the long hole 2-11 of the overhauling section 2 can be automatically adjusted according to the expansion with heat and contraction with cold of the exposed conducting wire 1, and the exposed conducting wire overhauling and isolating device has a certain moving stroke; the isolation blocks 2-2 are reduced compared with the conventional isolation size, so that enough gaps are reserved, and the isolation device cannot be damaged by extrusion when the exposed conductive wires 1 expand thermally. And the hole position of the fixing bolt 3 is provided with long holes 2-11, so that the isolating device cannot be broken when the exposed conducting wire 1 is shrunk. The device can be used for power supply and conducting wires with large phase difference in environmental temperature regions such as a cutting span, a transition span, a knockout span and the like in a steel plant.

Claims

1. The utility model provides a naked conductor wire overhauls isolating device, includes to obtain by connector and spacing block integrated into one piece and overhauls the section, its characterized in that: the isolating block extends outwards from the narrow surface of the long edge of the connecting body, the wide surface of the connecting body is provided with two long holes arranged along the length direction, and the two long holes are symmetrical to the two sides of the isolating block; two exposed conductive wires are respectively fixedly connected to the maintenance section through bolts penetrating through the corresponding long holes, and the gap between the inner ends of the two exposed conductive wires and the two sides of the isolation block is 5-10 mm.

2. The bare conductive wire service isolation device of claim 1, wherein: the thickness of the isolation block is the same as that of the connecting body.

3. The bare conductive wire service isolation device of claim 2, wherein: the distance from the outer end of the long hole to the outer end of the connecting body is 20-30 mm.

4. The bare conductive wire service isolation device of claim 3, wherein: and the long edge of the connector is provided with an assembly chamfer matched with the exposed conducting wire.

5. The bare conductive wire service isolation device of any one of claims 1 to 4, wherein: the two exposed conductive wires are clamped between the two overhauling sections.

6. The bare conductive wire service isolation device of claim 5, wherein: three bolt holes are formed in the contact part of each exposed conducting wire and the overhauling section.