CN215154074U

CN215154074U - Central anchoring device for insulated carrier cable

Info

Publication number: CN215154074U
Application number: CN202121232666.1U
Authority: CN
Inventors: 顾乐; 郭广成; 高素云
Original assignee: Hebei Hongguang Power Supply Equipment Co ltd
Current assignee: Hebei Hongguang Power Supply Equipment Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-12-14
Anticipated expiration: 2031-06-03

Abstract

The utility model relates to a central anchor device for insulating carrier cable, which comprises an insulating anchor rope, wherein the upper section of the insulating anchor rope is fixedly connected with the insulating carrier cable through at least 1 carrier cable central anchor clamp, the lower section of the insulating anchor rope is fixedly connected with a contact wire through the contact wire central anchor clamp, and the middle section of the insulating anchor rope is obliquely arranged; an insulating layer is attached to the outer surface of the insulating anchor rope; and one side of the insulating anchoring rope, which is close to the insulating carrier cable, is provided with a water-blocking umbrella skirt for preventing ice water from flowing downwards along the insulating anchoring rope. The central anchoring device for the insulated carrier cable can be arranged on the insulated carrier cable, provides stable tension, does not guide flow and can prevent ice water from flowing down along the anchoring rope.

Description

Central anchoring device for insulated carrier cable

Technical Field

The utility model relates to an accessory application technical field is erect to the contact net, specifically is an insulating carrier cable is with central anchor knot device.

Background

The electric network is a whole formed by various voltage substations and power transmission and distribution lines in an electric power system, is called as an electric power network for short, and comprises three units of power transformation, power transmission and power distribution. The electrified railway contact network power supply line, called an electrified railway for short, refers to a railway capable of supplying power to a train to run, and is named because corresponding electrified equipment needs to be matched along the railway to provide power guarantee for the train. Electrified railways have been created with the advent of electric locomotives, which do not themselves have a power source and require a power supply system along the railway to continuously supply electric power to the electric locomotives to drive the vehicles. Because the electric locomotive has stronger transportation capacity advantage compared with the internal combustion locomotive, the transportation capacity of the electrified railway under the same scale is far superior to that of a non-electrified railway, and the electric locomotive becomes the mainstream type of the modern railway.

However, the overhead line system power supply line erected in the tunnel often forms an icehanger on the top of the tunnel due to tunnel water seepage or water vapor condensation in winter, and when the icehanger is close to the exposed catenary, the damage of breakdown short circuit is easy to occur.

The insulated carrier cable is an effective product for solving the problem that the short-circuit tripping fault of the power supply equipment is caused by the shortened safe air insulation distance of the electrified power supply equipment due to ice hanging formed in a tunnel in winter. When the contact system is in use, the contact system is prevented from moving due to gradient or temperature change or unbalance compensation at two ends. Or when the wire breakage accident occurs, all the net wires are prevented from collapsing, the accident range is narrowed, and a central anchoring device is arranged between the contact wire and the carrier cable or between the carrier cable and the lower anchoring support. The existing central anchoring device is applied to a bare carrier cable, is diversion and cannot adapt to ice-resistant insulated carrier cables.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can install on insulating carrier cable, provide stable pulling force, do not lead to the water, can prevent the insulating carrier cable of frozen water along the anchor rope downflow from with central anchor knot device to solve the problem in the above-mentioned background art.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides an insulating centre anchor device for carrier cable which the key technology lies in that it includes: the upper section of the insulating anchor rope is fixedly connected with the insulating carrier cable through at least 1 carrier cable central anchor clamp, the lower section of the insulating anchor rope is fixedly connected with the contact wire through the contact wire central anchor clamp, and the middle section of the insulating anchor rope is obliquely arranged;

an insulating layer is attached to the outer surface of the insulating anchor rope;

and one side of the insulating anchoring rope, which is close to the insulating carrier cable, is provided with a water-blocking umbrella skirt for preventing ice water from flowing downwards along the insulating anchoring rope.

As a further improvement, the inner core of the insulated anchor knot rope is a metal flexible stranded wire formed by twisting a plurality of metal wires.

As a further improvement of the utility model, the carrier cable central anchor cable clamp comprises two symmetrically arranged carrier cable clamp bodies, the section of the carrier cable clamp body is spoon-shaped and comprises a carrier cable clamp arc part and a carrier cable clamp vertical part, a first arc groove is arranged on one side of the carrier cable clamp arc part, a second arc groove is arranged on one side of the carrier cable clamp vertical part, and a carrier cable clamp lug is arranged on the carrier cable clamp arc part;

the two first arc grooves are oppositely arranged and used for clamping the insulated carrier cable;

the two second arc grooves are oppositely arranged and used for clamping the insulating anchoring rope.

As a further improvement of the utility model, messenger wire presss from both sides vertical part with all be provided with the through-hole on the messenger wire clamp lug, two the through-hole on the messenger wire clamp body is corresponding for apply the bolt and press from both sides tight two messenger wire clamp body.

As a further improvement of the present invention, the first arc groove and the second arc groove are all provided with a plurality of tooth-shaped protrusions along the arc line.

As a further improvement of the utility model, the contact line center anchor tie clip comprises two contact line clip bodies which are arranged in a centrosymmetric manner and a U-shaped fastening component which is arranged at one end of each contact line clip body;

the contact wire clamp body is integrally long-strip-shaped, one end of the contact wire clamp body is provided with a contact wire clamp lug, and one side of the contact wire clamp body is provided with a third arc groove and a clamp tooth part;

the two third arc grooves are oppositely arranged and used for clamping the insulating anchoring rope;

the two wire clamp tooth parts are arranged corresponding to the grooves of the contact wire and used for clamping the contact wire;

the U-shaped fastening assembly is used for stably fastening the insulating anchoring rope.

As a further improvement, the contact wire clamp body is provided with a plurality of body through-holes, be provided with the lug through-hole on the contact wire clamp lug, two the body through-hole of contact wire clamp body is corresponding for exert the bolt and press from both sides tightly two the contact wire clamp body.

As a further improvement of the utility model, the U-shaped fastening component includes U-shaped bolt and briquetting, the both ends of U-shaped bolt set up respectively in lug through-hole and the body through-hole, briquetting one side be provided with the recess that the U-shaped bolt bending corresponds, the opposite side be provided with the recess that third circular arc groove corresponds, the U-shaped bolt drives the briquetting will along the anchor rope clamp tightly be in on the contact wire clamp body.

As a further improvement, the waterproof umbrella skirt is made of insulating material and is integrally tower-shaped.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

1. the utility model provides a central anchor knot device that stable in structure, safe insulating messenger used is provided to insulating anchor knot rope upper segment through 1 messenger wire central anchor knot fastener at least and insulating messenger wire fixed connection, insulating anchor rope lower segment through contact wire central anchor knot fastener and contact wire fixed connection, insulating anchor knot rope middle section be the slope setting, has prevented that the contact net from removing.

2. The insulating anchor rope outward appearance of this application has the insulating layer with, has eliminated the ice-hang and has formed the short circuit breakdown through insulating anchor rope.

3. The utility model provides an insulating anchor rope is close to insulating carrier cable end and is equipped with the umbrella skirt that blocks water, blocks ice water and flows down along the anchor rope.

4. The utility model provides an insulating anchor rope is the flexible stranded conductor of metal, and the during operation is because of the influence of pantograph lifting when passing through, and the anchor rope can take place the vibration, can prevent to block that the last ice-hang of full skirt that blocks water forms the influence to the contact net.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the embodiment in use.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a schematic view of an embodiment messenger wire center anchor tie clamp.

Fig. 4 is a schematic illustration of the connection of the upper segment of the insulated anchor line of fig. 2 to an insulated messenger line.

Fig. 5 is a schematic view of the connection of the lower section of the insulated mooring line of fig. 2 to a contact line.

Figure 6 is an exploded view of the contact wire center anchor tie clip of the embodiment.

FIG. 7 is a schematic view of a water blocking shed of an embodiment.

Wherein: 1. insulating a carrier cable; 2. a contact line; 3. an insulated anchor rope; 4. a catenary center anchor tie clamp; 5. a central anchor tie wire clamp of the contact wire; 6. a water-blocking umbrella skirt; 1-1, a carrier cable; 1-2, a carrier cable insulating layer; 4-1, a catenary wire clamp arc part; 4-2, a carrier cable clamp lug; 4-3, a vertical part of a catenary wire clamp; 4-4, a first arc groove; 4-5, second arc groove; 5-1, contacting the wire clamp body; 5-2, contacting the wire clamp lug; 5-3, U-shaped bolts; 5-4, briquetting; 5-5, a third arc groove; 5-6, clamping the thread part; 511. a body through hole; 521. a lug through hole.

Detailed Description

To make the objects, aspects and advantages of the present invention clearer, and in accordance with the following detailed description of certain embodiments of the present invention, it is to be understood that the terms "center," "vertical," "horizontal," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship shown in the accompanying drawings, which are used for convenience of description and simplicity of illustration, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

The specific embodiment is as follows:

this embodiment is suitable for on the anchor section of erection in the tunnel, and its spatial distribution is: a tunnel is arranged above the insulated catenary 1, a contact wire 2 is arranged below the insulated catenary 1, and the insulated catenary 1 and the contact wire 2 are arranged between the insulated catenary 1 and the contact wire 2. The insulated catenary 1 comprises a catenary 1-1 and a catenary insulating layer 1-2 shown in fig. 4, and the catenary insulating layer 1-2 can effectively protect the catenary 1-1 and prevent the catenary from being short-circuited with a hanging ice in a tunnel.

A central anchoring device for an insulated carrier line as shown in fig. 1 and 2, comprising: the upper section of the insulating anchor rope 3 is fixedly connected with an insulating catenary 1 through 3 groups of catenary center anchor clamps 4, the lower section of the insulating anchor rope 3 is fixedly connected with a contact wire 2 through a contact wire center anchor clamp 5, the middle section of the insulating anchor rope 3 is obliquely arranged under the traction of the contact wire center anchor clamp 5 and the catenary center anchor clamp 4 in a staggered mode, and the center anchor device of the embodiment is symmetrically arranged on one section of anchor section, so that the generated resultant force can balance the stress of the anchor section, the anchor section is prevented from shifting to one side, and the accident range when the catenary collapses is reduced.

The insulating layer is attached to the outer surface of the insulating anchoring rope 3 of the embodiment, so that the phenomenon of short circuit breakdown formed by the insulating anchoring rope 3 in order to eliminate ice hanging is eliminated, and the central anchoring device of the embodiment cannot conduct current. The inner core of the insulating anchoring rope 3 is a metal flexible stranded wire formed by stranding a plurality of metal wires, and the insulating anchoring rope 3 can vibrate due to the influence of lifting when a pantograph passes through during working, so that the influence of ice-hanging on the water-blocking umbrella skirt 6 on the contact line 2 can be prevented.

As shown in fig. 1 and 7, two groups of water-blocking sheds 6 are arranged on one side of the insulating anchoring rope 3 close to the insulating carrier cable 1, and are used for preventing ice water from flowing down along the insulating anchoring rope 3. The waterproof umbrella skirt 6 is made of insulating materials and is integrally tower-shaped. The installation of the water-blocking shed 6 of this embodiment can be selected to be integrated with the insulating layer of the insulating anchoring rope 3 or fixed by chemical bonding.

As shown in fig. 1 to 4, the carrier cable central anchor binder clamp 4 comprises two symmetrically arranged carrier cable clamp bodies, the section of each carrier cable clamp body is spoon-shaped and comprises a carrier cable clamp arc part 4-1 and a carrier cable clamp vertical part 4-3, a first arc groove 4-4 is arranged on one side of the carrier cable clamp arc part 4-1, the first arc groove 4-4 and the carrier cable clamp arc part 4-1 are minor arcs and are concentrically arranged, and the first arc grooves 4-4 on the two carrier cable clamp bodies are oppositely arranged to form a carrier cable clamping channel. A second arc groove 4-5 is arranged on one side of the vertical part 4-3 of the carrier cable clamp, the second arc groove 4-5 is a minor arc, and the second arc grooves 4-5 on the two carrier cable clamp bodies are oppositely arranged to form an anchoring rope clamping channel.

As shown in fig. 4, the first arc groove 4-4 and the second arc groove 4-5 in this embodiment are both provided with a plurality of tooth-shaped protrusions arranged along an arc line, so as to increase the friction force during clamping, and make the central anchoring device in this embodiment safe and reliable.

As shown in fig. 3, the upper part of the catenary wire clamp arc part 4-1 is provided with a catenary wire clamp lug 4-2, the catenary wire clamp lug 4-2 is provided with a through hole, the catenary wire clamp lugs 4-2 on the two catenary wire clamp bodies are opposite, the through holes on the two catenary wire clamp lugs 4-2 are opposite, and an applying bolt penetrates through the two through holes to press and fix the upper part of the catenary wire clamp body.

As shown in fig. 3, two through holes are provided in the messenger wire clamp vertical portion 4-3, the through holes in the two messenger wire clamp vertical portions 4-3 are oppositely disposed, and two bolts are applied to pass through the two messenger wire clamp vertical portions 4-3 to fix the lower portion of the messenger wire clamp body.

As shown in fig. 3 and 4, when the catenary center anchor clamp 4 is used, the inner diameter of the adaptive catenary clamping channel is selected according to the outer diameter of the insulated catenary 1, and then the inner diameter of the adaptive anchor rope clamping channel is selected according to the outer diameter of the insulated anchor rope 3. Firstly, installing a carrier cable central anchor cable clamp 4 on an insulated carrier cable 1, namely, folding two carrier cable clamp bodies from two sides of the insulated carrier cable 1 to enable the insulated carrier cable 1 to be positioned in a carrier cable clamping channel, pre-tightening bolts on lugs 4-2 of the carrier cable clamp, placing the upper section of an insulated anchor rope 3 into the anchor cable clamping channel, screwing two bolts on a vertical part 4-3 of the carrier cable clamp, enabling two second arc grooves 4-5 to clamp the insulated anchor rope 3, and finally screwing bolts on the lugs 4-2 of the carrier cable clamp to finish the fixed connection of the insulated carrier cable 1 and the insulated anchor rope 3.

As shown in fig. 5 and 6, the contact line center anchor clamp 5 comprises two contact line clamp bodies 5-1 arranged in a central symmetry manner and a U-shaped fastening assembly arranged at one end of each contact line clamp body 5-1.

As shown in fig. 6, the contact wire clamp body 5-1 is a strip shape, a contact wire clamp lug 5-2 is arranged at the upper part of one end of the contact wire clamp body 5-1, and a third arc groove 5-5 and a clamp tooth part 5-6 are arranged on the side surface of the contact wire clamp body 5-1. The third arc grooves 5-5 of the two contact wire clamp bodies 5-1 are oppositely arranged to form an anchor rope clamping channel for clamping the lower section of the insulating anchor rope 3 by the anchor rope clamp 5 at the center of the contact wire. Preferably, a plurality of tooth-shaped protrusions are arranged in the third arc groove 5-5 along an arc line.

As shown in fig. 6, the two wire clamping tooth portions 5-6 are arranged corresponding to the grooves of the contact wire 2, and the two wire clamping tooth portions 5-6 can clamp the contact wire 2 when being mutually closed.

As shown in fig. 6, the contact wire clamp body 5-1 is provided with 4 body through holes 511, the contact wire clamp lug 5-2 is provided with 1 lug through

hole

521, and 3 body through holes 511 of the two contact wire clamp bodies 5-1 correspond to each other, and are used for applying 3 sets of bolts to clamp the two contact wire clamp bodies 5-1.

As shown in fig. 6, the U-shaped fastening assembly includes a U-shaped bolt and a pressing block 5-4, two ends of the U-shaped bolt are respectively disposed in the body through hole 511 below the lug through hole 521 and the lug through hole 521, a groove corresponding to the bent portion of the U-shaped bolt 5-3 is disposed on one side of the pressing block 5-4, a groove corresponding to the third arc groove 5-5 is disposed on the other side of the pressing block, nuts at two ends of the U-shaped bolt 5-3 are screwed, so that the U-shaped bolt 5-3 is drawn close to the contact wire clamp body 5-1, and the pressing block 5-4 is driven to clamp the edge anchor rope 3 in the third arc groove 5-5 on the contact wire clamp body 5-1.

The U-shaped fastening components are arranged at two ends of the contact line center anchor tie clip 5, so that when the lower section of the insulating anchor rope 3 is fixed and tensioned on the contact line center anchor tie clip 5, the transition between the middle section and the lower section of the insulating anchor rope 3 is smoother, the stress at the inflection point is reduced, the service life is prolonged, and the anchor section is more stably fixed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A central anchoring device for insulated carrier cables, characterized in that it comprises: the upper section of the insulating anchor rope (3) is fixedly connected with the insulating carrier cable (1) through at least 1 carrier cable central anchor knot clamp (4), the lower section of the insulating anchor rope (3) is fixedly connected with the contact wire (2) through a contact wire central anchor knot clamp (5), and the middle section of the insulating anchor rope (3) is obliquely arranged;

an insulating layer is attached to the outer surface of the insulating anchoring rope (3);

and a water-blocking umbrella skirt (6) is arranged on one side, close to the insulating carrier cable (1), of the insulating anchoring rope (3) and used for preventing ice water from flowing downwards along the insulating anchoring rope (3).

2. The insulated catenary center anchor of claim 1, wherein: the inner core of the insulating anchoring rope (3) is a metal flexible stranded wire formed by stranding a plurality of metal wires.

3. The insulated catenary center anchor of claim 1, wherein: the carrier cable central anchor binding wire clamp (4) comprises two symmetrically arranged carrier cable clamp bodies, the section of each carrier cable clamp body is spoon-shaped and comprises a carrier cable clamp arc part (4-1) and a carrier cable clamp vertical part (4-3), a first arc groove (4-4) is formed in one side of the carrier cable clamp arc part (4-1), a second arc groove (4-5) is formed in one side of the carrier cable clamp vertical part (4-3), and a carrier cable clamp lug (4-2) is arranged on the carrier cable clamp arc part (4-1);

the two first arc grooves (4-4) are oppositely arranged and used for clamping the insulated carrier cable (1);

the two second arc grooves (4-5) are oppositely arranged and used for clamping the insulating anchoring rope (3).

4. The insulated catenary center anchor assembly of claim 3, wherein: through holes are formed in the vertical part (4-3) of the carrier cable clamp and the lug (4-2) of the carrier cable clamp, and the through holes in the two carrier cable clamp bodies correspond to each other and are used for applying bolts to clamp the two carrier cable clamp bodies.

5. The insulated catenary center anchor assembly of claim 3, wherein: a plurality of tooth-shaped protrusions are arranged in the first arc groove (4-4) and the second arc groove (4-5) along arc lines.

6. The insulated catenary center anchor of claim 1, wherein: the contact line center anchor knot clamp (5) comprises two contact line clamp bodies (5-1) which are arranged in a centrosymmetric manner and a U-shaped fastening assembly arranged at one end of each contact line clamp body (5-1);

the contact wire clamp body (5-1) is integrally long-strip-shaped, one end of the contact wire clamp body is provided with a contact wire clamp lug (5-2), and one side of the contact wire clamp body (5-1) is provided with a third arc groove (5-5) and a wire clamp tooth part (5-6);

the two third arc grooves (5-5) are oppositely arranged and used for clamping the insulating anchoring rope (3);

the two wire clamping tooth parts (5-6) are arranged corresponding to the grooves of the contact wire (2) and used for clamping the contact wire (2);

the U-shaped fastening component is used for stably fastening the insulating anchoring rope (3).

7. The insulated catenary center anchor assembly of claim 6, wherein: the contact wire clamp comprises a contact wire clamp body (5-1), and is characterized in that a plurality of body through holes (511) are formed in the contact wire clamp body (5-1), lug through holes (521) are formed in contact wire clamp lugs (5-2), and the body through holes (511) of the two contact wire clamp bodies (5-1) correspond to each other and are used for applying bolts to clamp the two contact wire clamp bodies (5-1).

8. The insulated catenary center anchor of claim 7, wherein: the U-shaped fastening assembly comprises a U-shaped bolt (5-3) and a pressing block (5-4), two ends of the U-shaped bolt (5-3) are respectively arranged in the lug through hole (521) and the body through hole (511), one side of the pressing block (5-4) is provided with a groove corresponding to the bent part of the U-shaped bolt (5-3), the other side of the pressing block is provided with a groove corresponding to the third arc groove (5-5), and the U-shaped bolt (5-3) drives the pressing block (5-4) to clamp the edge anchoring rope (3) on the contact wire clamp body (5-1).

9. The insulated catenary center anchor of claim 1, wherein: the waterproof umbrella skirt (6) is made of insulating materials and is integrally tower-shaped.