CN210349349U

CN210349349U - Choke transformer rail equal resistance lead wire

Info

Publication number: CN210349349U
Application number: CN201921914862.XU
Authority: CN
Inventors: 纪跃星
Original assignee: Hebei Xingrui Railway Equipment Co Ltd
Current assignee: Hebei Xingrui Railway Equipment Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-04-17
Anticipated expiration: 2029-11-08

Abstract

The utility model belongs to the technical field of signal of telecommunication transmission between tuning equipment and the rail among the track circuit, specific saying relates to a choke transformer rail etc. hinders the lead wire. The technical scheme is as follows: comprises a terminal for connecting a steel rail and tuning equipment and a signal wire body connected between the two terminals; the signal wire body consists of a fixed section and a vibration section which are connected through an insertion section; the fixed section comprises a central steel wire, a wire core formed by a copper wire and a low-carbon steel wire which surround the outer side of the steel wire, and a protective layer coated on the outer side of the wire core; the vibration section consists of an inner core formed by copper wires and a protective layer coated on the outer side of the inner core; the splicing section consists of an inner core which extends out of the copper wire from the fixed end, a cross section which is formed by extending out of the copper wire from the vibration section and crossing, a metal locking layer which is coated on the outer side of the cross section and a protective layer. The lead wire has proper flexibility to meet the vibration requirement, has specific hardness to meet the fixity, and has the characteristic of long service life.

Description

Choke transformer rail equal resistance lead wire

Technical Field

The utility model belongs to the technical field of signal of telecommunication transmission between tuning equipment and the rail among the track circuit, specific saying relates to a choke transformer rail etc. hinders the lead wire.

Background

The choke transformer rail or other resistance lead wire is connected between the tuning equipment and the rail in the track circuit, and is composed of connecting terminals arranged at two ends, a copper wire connected between the connecting terminals and used as a signal transmission wire, and a steel wire used for improving the tensile strength of the copper wire. One end of the choke transformer steel rail and other resistance lead wires is connected with the steel rail, and a train can generate long-time vibration with certain amplitude when passing through, so that the steel wire in the lead wires is easy to break due to poor flexibility, and the service life of the signal wire copper wires is influenced due to the fact that the steel wire is easy to break.

Chinese patent No. 201820578672.4, the utility model patent that the publication number is CN208796684U discloses an aluminum alloy steel rail guide line, the structure that constitutes this guide line includes the hemp core, wire rope, the inner sheath, the oversheath, the aluminum alloy silk, galvanized steel wire a, galvanized steel wire B, its characterized in that hemp core is the immersion oil hemp core, the outer fringe of hemp core is provided with stranded wire rope, use central hemp core as the central point, outer fringe hinge system stranded steel wire forms wire rope, wire rope's the outside is encircleed and is provided with many galvanized steel wire B, galvanized steel wire B's the outside is provided with aluminum alloy silk and galvanized steel wire a, aluminum alloy silk and galvanized steel wire a arrange the outside at galvanized steel wire B mutually, aluminum alloy silk and galvanized steel wire a's the outside is provided with the inner sheath, the outside of inner sheath is provided with the oversheath. The steel rail guide line with the structure improves the whole flexibility of the guide line due to the inclusion of the oil-impregnated hemp core and the steel wire rope, and due to the use of the aluminum alloy wire, the galvanized steel wire and the hemp rope, the whole guide line is thickened, and the whole guide line is softened, so that the fixation of the guide line can be influenced, and the performance of the whole guide line is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a choke transformer rail etc. hinder the lead wire that has suitable gentle nature both to satisfy the vibration needs, have specific hardness again in order to satisfy its fixity.

In order to achieve the above object, the utility model adopts the following technical scheme:

a kind of choke transformer rail, etc. hinder the lead wire, including the end used for connecting rail and tuning equipment and connecting to the signal line body between above-mentioned two ends and forming, the said signal line body is formed by fixed section and vibration section connected through the insertion section; wherein the content of the first and second substances,

the fixed section comprises a steel wire, a copper wire and a low-carbon steel wire, wherein the center of the steel wire is filled with oil, the copper wire surrounds the outer side of the steel wire, and the wire core is formed by the low-carbon steel wire;

the vibration section consists of an inner core consisting of copper wires and a protective layer coated on the outer side of the inner core;

the inserting section is composed of an inner core which is extended from the fixed end and comprises a copper wire, a cross section which is formed by extending the vibrating section out of the copper wire in a cross mode, a metal locking layer which is coated on the outer side of the metal locking layer and a protective layer.

The additional technical characteristics of the resistance lead wire of the choke transformer steel rail and the like also comprise that:

the inner core of the vibrating section consists of copper wire and low carbon steel wire;

in the cross section, the inner core extending from the fixed end is formed by a copper wire or a copper wire and a low-carbon steel wire;

the circumferential surface of the copper wire forming the cross section is in a hemp surface shape.

The utility model provides a choke transformer rail etc. hinder the lead wire and compare with prior art, have following advantage: firstly, the signal wire body forming the lead wire is composed of a fixed section which is connected through an inserting section and can meet the requirement of being attached to the ground of the connected tuning equipment and a vibration section which is formed by copper wires with better flexibility, so that the lead wire can adapt to the vibration of the steel rail without breaking, and the defects of distortion, looseness or breakage of the connection between the connection end of the lead wire and the steel rail are avoided; secondly, because the inner core extending out of the fixed end in the cross section forming the lead wire is a copper wire and a low-carbon steel wire, the resistance value forming the lead wire can be conveniently adjusted, and the connection strength of the cross section can be improved; thirdly, because the circumferential surfaces of the copper wires in the cross sections are of a pitted surface shape, the contact area of the copper wires between the fixed section and the vibration section can be increased, and the contact resistance between the fixed section and the vibration section is reduced.

Drawings

FIG. 1 is a schematic structural view of a choke transformer rail or the like resistance lead wire;

fig. 2 is a schematic view of a radial cross-sectional structure constituting the above lead wire fixing section;

FIG. 3 is a schematic view showing a radial cross-sectional structure between vibration sections constituting the lead wires;

FIG. 4 is a schematic view of a radial cross-section of the plug section constituting the lead wire;

fig. 5 is a schematic axial sectional structure of the plug section.

Detailed Description

The structure and the working principle of the resistance lead wire such as the choke transformer steel rail provided by the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1, 2, 3 and 4, the present invention provides a schematic structural diagram of a choke lead wire such as a choke transformer rail. The structure of the choke transformer steel rail and other resistance lead wires comprises end heads 11 and 12 for connecting the steel rail and tuning equipment, and a signal wire body formed by a fixed section 2 and a vibrating section 4 which are connected between the two end heads through an inserting section 3; the fixed section 2 capable of being connected with the tuning device comprises a steel wire 21 with an oil immersed center, a copper wire 22 surrounding the outer side of the steel wire and used for transmitting electric signals and a wire core formed by a low-carbon steel wire 23 used for adjusting the resistance value of a lead wire, and the outer side of the wire core is coated with an insulating and impact-resistant protective layer 24 made of rubber and plastic materials; the fixing section includes an oil-immersed steel wire 21 having good elasticity, and thus can be attached to the bottom surface to fix the steel wire. The vibrating section 4, which can be fixedly connected to the rail by means of bolts, has a structure comprising an inner core formed by copper wires 41 for transmitting electrical signals, which has good flexibility and is externally covered by an insulating and impact-resistant protective layer 42 made of a rubber-plastic material. The inserting section 3 connecting the fixed section 2 and the vibrating section 4 is composed of an inner core of a copper wire 22 extending from the fixed end, a cross section formed by crossing a copper wire 41 extending from the vibrating section, a metal locking layer 32 coated on the outer side of the cross section, and a protective layer 31; the copper wires 22 extending from the fixed ends arranged in a crossed manner and the copper wires 41 extending from the vibrating sections can be compressed through the metal locking layers, and the effect of reducing the contact resistance is achieved.

In the above configuration of the choke transformer rail or the like, the structure of the choke lead wire includes:

in order to adjust the problem that the elasticity of the inner core formed by the copper wire of the vibration section is low, the inner core is composed of a copper wire 41 and a proper amount of low-carbon steel wires 43 (the number of the copper wire can be set to be one tenth to one half according to requirements) for increasing the elasticity;

in the cross section, the inner core extended from the fixed end can also be formed by a copper wire 22 and a low-carbon steel wire 23, and the low-carbon steel wire plays a role in adjusting the connection resistance and improving the mechanical strength of the cross section;

in order to further reduce the contact resistance between the copper wires in the cross section, reduce the attenuation and improve the signal transmission performance, the circumferential surfaces of the copper wires 22 extending from the fixed end and the copper wires 41 extending from the vibration section are in a rough surface shape 33.

Claims

1. A kind of choke transformer rail, etc. hinder the lead wire, including the end used for connecting rail and tuning equipment and connecting to the signal line body between above-mentioned two ends to form; it is characterized in that; the signal wire body consists of a fixed section and a vibration section which are connected through an insertion section; wherein the content of the first and second substances,

2. A choke transformer rail or the like resistance lead wire according to claim 1, characterized in that: the inner core of the vibration section is composed of a copper wire and a low-carbon steel wire.

3. A choke transformer rail or the like resistance lead wire according to claim 1, characterized in that: in the cross section, the inner core extended from the fixed end is a copper wire or a copper wire and a low-carbon steel wire.

4. A choke transformer rail or the like resistance lead wire according to claim 1, characterized in that: the circumferential surface of the copper wire in the cross section is of a hemp surface shape.