CN201975178U

CN201975178U - Pipeline bus insulator structure with three struts

Info

Publication number: CN201975178U
Application number: CN2010206616669U
Authority: CN
Inventors: 武胜斌; 张文兵; 陈波
Original assignee: China XD Electric Co Ltd
Current assignee: China XD Electric Co Ltd
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2011-09-14
Anticipated expiration: 2020-12-15

Abstract

The utility model relates to a pipeline bus insulator structure with three struts, which comprises a conductor, a particle catcher, an insulating part, a large insert, a small insert, a rolling ball, a first metal cup, a spring, a conductive ball, a second metal cup and a support. The particle catcher is used for catching and collecting particles, the insulating part, the large insert and the small insert have insulating and supporting functions, the rolling ball and the first metal cup are used for realizing rolling contact, and the spring, the conductive ball, the second metal cup and the support are connected with ground potential. The inserts with studs are directly connected with the conductor so as to avoid influence of the insulating part to welding of the conductor, all supporting parts are connected with a pipeline in a rolling manner so that friction force is effectively reduced, the particle catcher is fixed to the support parts so as to solve the problem of synchronous movement of the insulating part and the particle catcher during laying of a pipeline bus, and influence of processing and mounting errors of pipelines and parts is effectively overcome by the aid of a ground potential circuit connection mode of the conductive ball and the spring. Accordingly, the pipeline bus insulator structure is simple in process and convenient in installation.

Description

A kind of pipeline bus three post insulator structures

Technical field

The utility model relates to the design and the manufacturing field of gas-insulated metal closed power transmission line, a kind of insulating supporting structure of particularly a kind of gas-insulated metal-enclosed pipeline bus under high voltage, especially a kind of pipeline bus three post insulator structures.

Background technology

Gas-insulated metal-enclosed pipeline bus, but its basic structure comprise slide relative between the metallic conduit, through-flow bus, pipeline and the bus of conduction of closed gas insulated support, play the bellows of temperature-compensating and play that air chamber is cut apart and the insulator of the support of insulate etc.

Because the length that the pipeline bus is used may reach tens kilometers, through-flow conductor is owing to there is electric current to cause heating up by producing heat, pipeline is subjected to the variation of temperature, generation expanded with heat and contract with cold to be made between pipeline and the bus to produce and relatively moves, and therefore playing insulation in the pipeline bus, to support and satisfy the insulator design that pipeline and bus relatively move extremely important.Welding procedure is poor, use epoxy amount is big and the particle capture device can not be with the mobile problem of strutting piece but existing supporting insulator exists.

The utility model content

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of pipeline bus three post insulator structures are provided, and this kind insulator is a kind of transportable insulating supporting structure, its compact conformation, easy to assembly, and cost is low.

The purpose of this utility model solves by the following technical programs:

This pipeline bus three post insulator structures, comprise conductor, play and catch and the particle capture device of collecting the particulate effect, be used to the insulate insulating part of supporting role, big inserts, little inserts, be used for roller ball, first metal cup of rolling contact, connected earthy spring, conducting sphere, second metal cup and support;

Thin cephalic par at described insulating part is poured into a mould little inserts, and the double-screw bolt of its medium and small inserts is exposed outside, pours into a mould big inserts at the thick cephalic par of insulating part; Vertical fixing has three insulating parts on the perisporium of described conductor; Described first metal cup is connected on the big inserts of below insulating part by screw; Described second metal cup is connected on the big inserts of top insulating part by screw; Three installing holes are arranged on the described particle capture device, place between first metal cup, second metal cup and the big inserts by hole particle capture device; Described roller ball is positioned in first metal cup and between the pipeline and first metal cup; Described support is positioned in second metal cup, places spring and conducting sphere in the centre bore of support, and wherein conducting sphere places the top of spring to contact with duct wall.

Poured into a mould the inserts that has double-screw bolt on the above-mentioned insulating part, the particle capture device is fixed on the end of insulating part.

The utlity model has following beneficial effect:

The utility model directly is connected with conductor by the inserts of band double-screw bolt, has therefore avoided the influence of insulating part to the conductor welding; All adopt to roll between strutting piece and the pipeline to connect, therefore effectively reduce frictional force; Particle capture device and strutting piece are fixed together, and have therefore solved insulating part and the synchronization-moving problem of particle capture device in the pipeline bus process of deployment; The earth potential circuit connecting mode of conduction ball and spring has effectively overcome the influence of pipeline and part processing and alignment error.Therefore technology of the present invention is simple, easy for installation.

Description of drawings

Fig. 1 is that pipeline bus insulation of the present invention supports front schematic view;

Wherein: 1. conductor 2. pipelines 3. particle capture devices 4. roller balls 5. first metal cups 6. big inserts 7. insulating parts 8. little inserts 9. springs 10. conducting spheres 11. supports 12. second metal cups.

Embodiment

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:

Referring to Fig. 1, pipeline bus three post insulator structures of the present utility model, mainly comprise: conductor 1, pipeline 2, play and catch and the particle capture device 3 of collecting the particulate effect, be used to the insulate insulating part 7 of supporting role, big inserts 6, little inserts 8, be used for roller ball 4, first metal cup 5 of rolling contact, connect earthy spring 9, conducting sphere 10, second metal cup 12 and support 11.Their annexation is: pour into a mould little inserts 8 at the thin cephalic par of insulating part 7, the double-screw bolt of its medium and small inserts 8 is exposed outside, pours into a mould big inserts 6 at the thick cephalic par of insulating part 7; Vertical fixing has three insulating parts 7 on the perisporium of conductor 1; First metal cup 5 is connected on the big inserts 6 of below insulating part 7 by screw; Second metal cup 12 is connected on the big inserts 6 of top insulating part 7 by screw; Three installing holes are arranged on the particle capture device 3, place between first metal cup 5, second metal cup 12 and the big inserts 6 by hole particle capture device 3; Roller ball 4 is positioned in first metal cup 5 and between the pipeline 2 and first metal cup 5; Support 11 is positioned in second metal cup 12, places spring 9 and conducting sphere 10 in the centre bore of support, and wherein conducting sphere 10 places the top of spring 9 to contact with duct wall.

In most preferred embodiment of the present utility model, insulating part 7, big inserts 6, little inserts 8 become post insulator by cast together, and three post insulators are pressed angle 120 degree and evenly arranged.Conductor 1 adds and forms by pouring into a mould the back machine, and three hole shapes on the conductor 1 press angle 120 degree and evenly arranged, at processing of the center of hole shape and the corresponding screw of little inserts 6 double-screw bolts.Post insulator is fastenedly connected by the double-screw bolt of little inserts 6 and the screw of conductor 1.First metal cup 5 adds by machine and forms, and is processed with the counterbore of four mounting screws on first metal cup 5, is processed with the big-diameter blind hole of placing first metal cup 5 on the big inserts 6, pit bottom processing and metal cup 5 corresponding four screws of simultaneously big inserts 6; The same with first metal cup, second metal cup 12 adds by machine and forms, be processed with the counterbore of four mounting screws on second metal cup 12, be processed with the pit of placing second metal cup 12 on the big inserts 6, pit bottom processing and metal cup 5 corresponding four screws of simultaneously big inserts 6; Particle capture device 3 is welded by roll extrusion, and in the hole that three angles of the middle part of particle capture device 3 processing, 120 degree are evenly arranged, the diameter in this hole is larger than

first metal cup

5 and 12 glasss of body external diameters of second level metal cup.Big inserts 6, particle capture device 3, two first metal cups 5 and one second metal cup are placed the back successively by Fig. 1 and are undertaken fastening by screw.Two roller balls 4 are placed into respectively in the rim of a cup of two metal cups 5, simultaneously support 11, spring 9, conducting sphere 10 are placed in second golden cup 12 successively, the part with assembling keeps assembly relation to push in the pipeline 2 at last, has so just finished assembling.

Claims

1. pipeline bus three post insulator structures, it is characterized in that: comprise conductor (1), play and catch and the particle capture device (3) of collecting the particulate effect, be used to the insulate insulating part (7) of supporting role, big inserts (6), little inserts (8), be used for roller ball (4), first metal cup (5) of rolling contact, connected earthy spring (9), conducting sphere (10), second metal cup (12) and support (11);

Pour into a mould little inserts (8) at the thin cephalic par of described insulating part (7), the double-screw bolt of its medium and small inserts (8) is exposed outside, pours into a mould big inserts (6) at the thick cephalic par of insulating part (7); Vertical fixing has three insulating parts (7) on the perisporium of described conductor (1); Described first metal cup (5) is connected on the big inserts (6) of below insulating part (7) by screw; Described second metal cup (12) is connected on the big inserts (6) of top insulating part (7) by screw; Three installing holes are arranged on the described particle capture device (3), place between first metal cup (5), second metal cup (12) and the big inserts (6) by hole particle capture device (3); Described roller ball (4) is positioned in first metal cup (5) and between pipeline (2) and first metal cup (5); Described support (11) is positioned in second metal cup (12), places spring (9) and conducting sphere (10) in the centre bore of support, and wherein conducting sphere (10) places the top of spring (9) to contact with duct wall.

2. pipeline bus three post insulator structures according to claim 1 is characterized in that described insulating part has been poured into a mould the inserts that has double-screw bolt on (7), and particle capture device (3) is fixed on the end of insulating part (7).