CN211442027U

CN211442027U - Sliding type contact wire limiting device

Info

Publication number: CN211442027U
Application number: CN201922076740.4U
Authority: CN
Inventors: 王阳; 王占桥; 李作运; 何德家; 王宇; 李太树
Original assignee: Anshan Steel Group Co ltd
Current assignee: Anshan Steel Group Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-08
Anticipated expiration: 2029-11-27

Abstract

The utility model relates to a sliding type contact wire limiting device, which comprises a single wire limiting device or a double wire limiting device; the single-wire limiting device consists of a double-hole sleeve, 2 first sliding rods, a first mounting lifting lug and 2 first fixing wire clamps; the double-line limiting device consists of 4 single-hole sleeves, 2 sliding rods II, a mounting lifting lug II and 4 fixing wire clamps II; the utility model discloses utilize two-way sleeve pipe and slide bar cooperation to be connected, whole height is little, can satisfy the requirement of installing under the less environment of headroom height such as bridges and culverts, and the reliable contact between pantograph and the contact wire has also been guaranteed to the displacement that sliding type connection not only can overcome the contact wire because expend with heat and contract with cold produces.

Description

Sliding type contact wire limiting device

Technical Field

The utility model relates to an electric railway technical field especially relates to a slidingtype contact wire stop device.

Background

The electric locomotive is not provided with a prime motor, receives current sent by a contact net as energy, and drives wheels of the locomotive by a traction motor. The electric locomotive has the main advantages of high power, high heat efficiency, high speed, strong overload capacity, reliable operation and the like, does not pollute the environment, and is particularly suitable for mountain railways with more railways and tunnels and large gradient in busy transportation. The overhead contact system for electrified railway is a high-voltage transmission line which is erected along the upper part of steel rail in a zigzag form and is used for current taking of pantograph, and is composed of a contact suspension device, a supporting device, a positioning device, a support column and a foundation.

The contact net used for railway transportation of industrial and mining enterprises plays an important role, and especially plays an extremely important role as the traction power of an electric locomotive on a small curve and large-gradient railway line. However, various obstacles exist along the railway transportation line, such as steel structure pipelines, bridges, etc., which affect the overhead line of the overhead line system, not only the structural height is limited, but also the displacement of the catenary or the contact line at a given position is affected, which easily causes that the tension of the contact line cannot meet the technical requirements, and even the pantograph of the electric locomotive is grounded, so that the contact line disconnection accident occurs.

Disclosure of Invention

The utility model provides a slidingtype contact wire stop device utilizes two-way sleeve pipe and slide bar cooperation to be connected, and whole height is little, can satisfy the requirement of installing under the less environment of headroom height such as bridges and culverts, and the displacement that the contact wire produced owing to expend with heat and contract with cold is not only overcome in slidingtype connection, has also guaranteed the reliable contact between pantograph and the contact wire.

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

a sliding type contact wire limiting device comprises a single wire limiting device or a double wire limiting device; the single-wire limiting device consists of a double-hole sleeve, 2 first sliding rods, a first mounting lifting lug and 2 first fixing wire clamps; the middle parts of the 2 first sliding rods are respectively arranged in the 2 through holes on the double-hole sleeve in a penetrating mode, and the two ends of the first sliding rods are respectively fixedly connected with the contact lines through the first fixing wire clamps; the double-hole sleeve is fixedly connected with the insulator through a first mounting lifting lug; the double-line limiting device consists of 4 single-hole sleeves, 2 sliding rods II, a mounting lifting lug II and 4 fixing wire clamps II; the two sliding rods II are arranged side by side, two ends of each sliding rod II are respectively sleeved with 1 single-hole sleeve, and the single-hole sleeves are fixedly connected with corresponding contact lines through the two fixed wire clamps; the middle parts of the 2 sliding rods II are fixedly connected with the mounting lifting lugs II respectively, and the mounting lifting lugs II are fixedly connected with the insulator.

The double-hole casing is formed by welding 2 steel pipes together side by side.

The length of the first sliding rod and the length of the second sliding rod are larger than the displacement of the contact line.

The first mounting lug and the second mounting lug are of a T-shaped structure consisting of a bottom plate and an ear plate, and bolt holes are formed in the ear plate and used for being connected with the insulators through bolts.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the bidirectional sleeve is matched and connected with the sliding rod, so that the overall height is small, the installation requirement under the environment with smaller clearance height such as bridges and culverts can be met, the sliding connection can not only overcome the displacement of the contact wire caused by expansion with heat and contraction with cold, but also ensure the reliable contact between the pantograph and the contact wire;

2) the single-wire limiting device or the double-wire limiting device designed by the same principle is respectively suitable for single-contact-wire and double-contact-wire contact networks, and has strong applicability;

3) for a contact network with a single contact line, the single line contact is changed into the double line contact, and the connection between the pantograph and the contact line is changed from the conventional line contact into the surface contact, so that the excessive local pressure of the pantograph is effectively prevented, the loss of the contact line is reduced, and the grounding phenomenon caused by the unbalance of the pantograph is avoided.

Drawings

Fig. 1 is a front view of the single line limiting device of the present invention.

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

Fig. 3 is a schematic perspective view of the double-line limiting device of the present invention.

In the figure: 1. a first fixed wire clamp 2, a first sliding rod 3, a double-hole sleeve 4, a first installation lifting lug 5, a contact wire 6, a single-hole sleeve 7, a second sliding rod 8, a second installation lifting lug 9, a second fixed wire clamp

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

the utility model relates to a sliding contact wire limiting device, which comprises a single wire limiting device or a double wire limiting device; as shown in fig. 1 and 2, the single-wire limiting device is composed of a double-

hole sleeve

3, 2 sliding rods I2, a mounting lifting lug I4 and 2 fixing wire clamps I1; the middle parts of the 2 sliding rods I2 are respectively arranged in the 2 through holes on the double-hole sleeve 3 in a penetrating manner, and the two ends of the sliding rods I2 are respectively fixedly connected with the contact line 5 through the fixed wire clamps I1; the double-hole sleeve 3 is fixedly connected with the insulator through a first mounting lifting lug 4; as shown in fig. 3, the double-line limiting device consists of 4 single-hole sleeves 6, 2 sliding rods II 7, two

mounting lugs

8 and 4 fixed wire clamps II 9; the 2 sliding rods 7 are arranged side by side, two ends of each sliding rod 7 are respectively sleeved with 1 single-hole sleeve 6, and the single-hole sleeves 6 are fixedly connected with corresponding contact lines through the fixed wire clamps 9; the middle parts of the 2 sliding rods II 7 are fixedly connected with the mounting lifting lugs II 8 respectively, and the mounting lifting lugs II 8 are fixedly connected with the insulator.

The double-hole casing 3 is formed by welding 2 steel pipes together side by side.

The lengths of the first sliding rod 2 and the second sliding rod 7 are larger than the displacement of the contact line 5.

The first mounting lifting lug 4 and the second mounting lifting lug 8 are of T-shaped structures consisting of bottom plates and lug plates, and bolt holes are formed in the lug plates and used for being connected with the insulators through bolts.

A slidingtype contact wire stop device uses in the less environment of clean air height such as bridges and culverts, specifically chooses for use single line stop device or double-line stop device as required.

When being used for carrying out transformation and upgrade to current contact net, the installation as follows:

1) the original contact net adopts a disconnection mode, so that the contact line supplies power discontinuously, and the electric locomotive falls and slides through;

2) carrying out field measurement, determining the specific structural dimensions of each part of the contact line limiting device according to the actual conditions and requirements on the field, and manufacturing the contact line limiting device;

3) selecting a position meeting the requirement of a fixed hanging point according to the actual environment of the site, and arranging an insulator;

4) and (4) suspending the manufactured contact wire limiting device below the insulator, installing the contact wire limiting device in place, transmitting power to the contact net for test operation, and putting the contact net into use after the contact net is qualified.

The installation requirements of the contact line limiting device are as follows:

1) the length of the first sliding rod or the second sliding rod is larger than the maximum displacement of the contact line caused by thermal expansion and cold contraction.

2) After the installation, the first sliding rod or the second sliding rod can freely slide in the corresponding double-hole sleeve or single-hole sleeve.

3) The contact wire limiting device is integrally insulated, firm to install and free from looseness in the using process.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. A sliding type contact wire limiting device is characterized by comprising a single wire limiting device or a double wire limiting device; the single-wire limiting device consists of a double-hole sleeve, 2 first sliding rods, a first mounting lifting lug and 2 first fixing wire clamps; the middle parts of the 2 first sliding rods are respectively arranged in the 2 through holes on the double-hole sleeve in a penetrating mode, and the two ends of the first sliding rods are respectively fixedly connected with the contact lines through the first fixing wire clamps; the double-hole sleeve is fixedly connected with the insulator through a first mounting lifting lug; the double-line limiting device consists of 4 single-hole sleeves, 2 sliding rods II, a mounting lifting lug II and 4 fixing wire clamps II; the two sliding rods II are arranged side by side, two ends of each sliding rod II are respectively sleeved with 1 single-hole sleeve, and the single-hole sleeves are fixedly connected with corresponding contact lines through the two fixed wire clamps; the middle parts of the 2 sliding rods II are fixedly connected with the mounting lifting lugs II respectively, and the mounting lifting lugs II are fixedly connected with the insulator.

2. The sliding contact wire limit device of claim 1, wherein the double bore casing is made of 2 steel tubes welded together side by side.

3. The sliding contact wire limit device of claim 1, wherein the length of the first and second sliding rods is greater than the displacement of the contact wire.

4. The sliding contact line spacing device of claim 1, wherein the first mounting lug and the second mounting lug are of a T-shaped structure consisting of a bottom plate and an ear plate, and the ear plate is provided with bolt holes for connecting with insulators through bolts.