CN203472575U

CN203472575U - Direct-current overhead line system insulating straight cantilever

Info

Publication number: CN203472575U
Application number: CN201320559903.4U
Authority: CN
Inventors: 王阳; 刘兴植; 王殿臣; 孟宪州
Original assignee: Anshan Iron and Steel Group Co Ltd
Current assignee: Anshan Iron and Steel Group Co Ltd
Priority date: 2013-09-10
Filing date: 2013-09-10
Publication date: 2014-03-12
Anticipated expiration: 2023-09-10

Abstract

The utility model relates to the field of electrified railway catenary, in particular to an insulated straight wrist arm of a direct current catenary, which includes a wrist arm, a tie bar, a handle tube, an insulator string and a contact suspension assembly, and is characterized in that the insulator string is close to the pillar side The setting is respectively arranged between the tie bars and the pillars, between the wrist arms and the pillars, and the wrist arms, the tie bars and the contact suspension components are at the same potential. Described wrist arm is cut into by round steel pipe. The insulator string is a composite insulator. Compared with the prior art, the beneficial effects of the utility model are: 1) the wrist arm is made of round steel pipe, the structure is light and simple, and the construction, installation and maintenance are convenient; 2) the insulator string is not easily polluted by smoke in the mixed traction section, The electrical insulation strength of the contact suspension components is improved; 3) the wrist arm, tie bars and contact suspension components are at the same potential, which greatly facilitates the development of live maintenance operations, reduces the number of power outage maintenance, and conforms to the development trend of catenary equipment.

Description

A kind of direct current contact system straight bracket that insulate

Technical field

The utility model relates to electrification railway contact net field, relates in particular to a kind of direct current contact system straight bracket that insulate.

Background technology

Bracket is a kind of supportive device of contact net equipment, is arranged on pillar, and main application is to support contact suspension assembly.Straight bracket can only be set up pillar in railway one side when being subject to landform restriction, and needs to hang 2～3 groups of contact suspension assemblies herein.Many employings is nonisulated straight bracket at present, and its version is: contact suspension assembly (6) is suspended in the flat head section of handle pipe (5) front end by insulator chain (1), bracket (2) root and lacing wire (3) are directly installed on pillar (4).Bracket (2) is to be made by angle steel, and materials are many, structure is heavy, higher to pillar capacity requirement, installation and maintenance difficulty, and insulator chain (1), directly over circuit, easily pollutes simultaneously, has increased safety hazard.The shortcoming of this nonisulated bracket maximum is to be unfavorable for carrying out carrying out of power-on serving operation, in work in the past, because contact system circuit is subject to influence of temperature change larger, contact suspension assembly is elongated or shortened by influence of temperature change, makes bracket (2) skew or handle pipe (5) skew.In order to improve the mode of operation of contact wire, often to adjust the deviant of handle pipe and bracket, if adjust or change the handle pipe (5) of nonisulated bracket below, just must apply for interruption maintenance, and application interruption maintenance has just been upset the order of Transportation Organization, for transportation, protect product work and manufactured trouble.In addition, meet transportation production work more nervous time, to power off time, do not process hidden danger, make the operation of equipment belt hidden danger, caused transportation to protect the passive situation that product work can not get Reliable guarantee.

Summary of the invention

The purpose of this utility model is to provide a kind of direct current contact system straight bracket that insulate, and makes bracket and lacing wire and contact suspension assembly in same equipotential, and insulator is difficult for being polluted by sootiness, facilitates carrying out of hotline maintenance operation simultaneously.

For achieving the above object, the utility model is realized by the following technical solutions:

A kind of direct current contact system straight bracket that insulate, comprise bracket, lacing wire, handle pipe, insulator chain and contact suspension assembly, described insulator chain arranges by pillar side, is separately positioned between lacing wire and pillar, between bracket and pillar, and bracket, lacing wire and contact suspension assembly are in same equipotential.

Described bracket is cut into by round steel pipe.

Described insulator chain is compound insulator.

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

1) bracket adopts round steel pipe to make, and has structure lightly simple, technological performance, the advantage such as construction and installation and maintenance are more convenient;

2) insulator chain is installed near pillar side, at mixing traction section, is difficult for being polluted by sootiness, has improved the electric insulating intensity of contact suspension assembly, has effectively guaranteed to transport and has protected carrying out smoothly of product work;

3) bracket and lacing wire and contact suspension, in same equipotential, are very easy to carrying out of hotline maintenance operation, thereby have reduced widely the number of times of interruption maintenance, and overhaul of the equipments has obtained initiative, meet the development tendency of contact net equipment.

Accompanying drawing explanation

Fig. 1 is the utility model embodiment application state structural representation.

In figure: 1-insulator chain 2-bracket 3-lacing wire 4-pillar 5-handle pipe 6-contact suspension assembly

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further:

See Fig. 1, it is a kind of direct current contact system of the utility model straight bracket embodiment application state structural representation that insulate, comprise bracket 2, lacing wire 3, handle pipe 5, insulator chain 1 and contact suspension assembly 6, by insulator chain 1 is arranged by pillar 4 sides, be separately positioned between lacing wire 3 and pillar 4, between bracket 2 and pillar 4, make bracket 2, lacing wire 3 and contact suspension assembly 6 are in same equipotential, be very easy to carrying out of hotline maintenance operation, such as: adjust bracket deviant, adjust or change the handle pipe of bracket below, and the zigzag value of adjustment bracket below circuit, the upkeeps operation such as stagger, can directly carry out equipotential live line work, need not as in the past, apply for again interruption maintenance.

In order to improve the structural strength of bracket 2, bracket 2 is cut into by round steel pipe, and it is lightly simple that round steel pipe has structure, technological performance, construction and installation and the maintenance advantage such as more convenient.

Claims

1. A direct current catenary insulation straight wrist arm, comprising wrist arm, tie bar, handle pipe, insulator string and contact suspension assembly, it is characterized in that, described insulator string is arranged on the pillar side, is respectively arranged between tie bar and pillar Between the wrist arm and the pillar, the wrist arm, lacing bars and contact suspension components are at the same potential.

2. A direct current catenary insulation straight arm according to claim 1, characterized in that the arm is cut from a round steel pipe.

3 . The direct current catenary insulating straight arm according to claim 1 , wherein the insulator string is a composite insulator. 4 .