CN214240500U

CN214240500U - Sectional insulator for direct-current 3kV rigid suspension contact network

Info

Publication number: CN214240500U
Application number: CN202022987746.XU
Authority: CN
Inventors: 李兴东; 朱晓勇; 张娴; 哈义杰; 尹强强; 孙文豪
Original assignee: Nanjing Jincheng Rail Transport Equipment Co ltd
Current assignee: Nanjing Wuhua Electrical Equipment Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-09-21
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a direct current 3kV rigid suspension contact net section insulator, including the left side that is located the interval arrangement on the same straight line, right side busbar, be located a left side, the contact wire in right side busbar bottom draw-in groove, an insulator for connecting a left side, right side busbar, parallel arrangement in a left side on the left side busbar is connected through the busbar electricity and is fixed in a pair of round pin arc angle and a pair of left and right sides on the left side busbar, the slide rail of leading of right side busbar both sides, the one end that should lead the slide rail is connected with right busbar through crossing the cab apron, the other end is connected with and calls the arc angle, and the bottom of leading the slide rail is in on the coplanar with the bottom of contact wire. The utility model discloses a left and right busbar is connected to an insulator, through the connection structure who improves the insulator, improves the rigidity of segmentation insulator complete machine, reduces the amount of deflection that produces by self weight, compares with the like product of current multiunit insulating rod and has simple structure, the good and little advantage of amount of deflection of stability.

Description

Sectional insulator for direct-current 3kV rigid suspension contact network

Technical Field

The utility model relates to a sectional insulator especially relates to a direct current 3kV rigidity hangs contact net sectional insulator.

Background

The rigid suspension contact net is one of the modes of power supply systems of urban rail transit and overhead contact nets of electrified railways, and is particularly widely adopted in the field of urban rail transit. In the aspect of urban rail transit, along with the continuous expansion of urban scale, in order to relieve traffic pressure, a high-voltage power supply system is adopted, and the increase of the line running speed is an inevitable trend. In the aspect of electrified railways, rigid contact networks are gradually adopted in line tunnels, and the maximum design speed of the lines is 160 km/h.

The section insulator is an important component device of a rigid suspension contact network system, is used for electrical section of a contact network, and facilitates electrical contact and maintenance of a line. The conventional rigid suspension contact net section insulator has the defects of short creepage distance, small air gap, ineffective collection and guide of arc discharge, insufficient rigidity of a guide sliding rail and the like, and can not completely meet the use requirement of environmental climate diversity in China.

Thus, there is a need to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a simple structure, good and the little direct current 3kV rigid suspension contact net section insulator of amount of deflection of stability.

The technical scheme is as follows: for the purpose of the realization, the utility model discloses a direct current 3kV rigid suspension contact net section insulator, including the left side that is located the interval arrangement on the collinear, right bus bar, be located the contact wire of left and right bus bar bottom draw-in groove, be used for connecting the insulator of left and right bus bar, through the busbar electricity be connected be fixed in a pair of round pin arc angle and a pair of left and right sides parallel arrangement on the left side bus bar lead the slide rail in left and right bus bar both sides, the one end that should lead the slide rail is connected with right bus bar through the cab apron, the other end is connected with and signs the arc angle, and the bottom of leading the slide rail is in on the coplanar with the bottom of contact wire.

The right bus bar is provided with a left bus bar middle connecting plate and a right bus bar middle connecting plate, the left bus bar middle connecting plate is connected with the left bus bar and the right bus bar through bus bar connecting clamping plates, a short angle steel is arranged on the end portion, close to the right bus bar, of the left bus bar, a long angle steel is arranged on the end portion, close to the left bus bar, of the right bus bar, one end of the insulator is connected with the bus bar middle connecting plate and the long angle steel through insulator fixing plates, and the other end of the insulator is connected with the bus bar middle connecting plate and the short angle steel through insulator fixing plates.

Preferably, the middle part of the guide slide rail is connected with the long angle steel through the guide slide rail positioner and the positioning screw rod, and the vertical distance is adjusted through the positioning screw rod to enable the bottom of the guide slide rail and the bottom of the contact line to be positioned on the same plane.

Furthermore, bus bar supporting plates are symmetrically connected between the long angle steel and the right bus bar.

Further, the creepage distance of the insulator is more than or equal to 400 mm.

Preferably, the air gap between the guide rail and the left and right bus bars is not less than 150 mm.

Moreover, the air gap between the arcing angle and the pin arc angle is more than or equal to 150 mm.

Furthermore, the busbar electricity is connected and is blocked on left busbar through stud, adjusts the position that the busbar electricity is connected through stud and realizes that the air gap between arc angle and the round pin arc angle is adjustable.

Preferably, the outer layer umbrella cover of the insulator is of an umbrella skirt structure.

Furthermore, the cross section of the guide rail is of a groove structure.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: firstly, the utility model connects the left and right bus bars through an insulator, improves the rigidity of the whole sectional insulator by improving the connecting structure of the insulator, reduces the deflection generated by the self weight, and has the advantages of simple structure, good stability and small deflection compared with the similar products of the prior multi-group insulating rod; the utility model has more reliable electrical insulation performance by increasing creepage distance and air gap, and can meet the use requirement under severe pollution environment; moreover, the outer umbrella cover of the middle insulator adopts the umbrella skirt structure, under the condition of ensuring the same creepage distance, the length of the whole machine is further reduced, the weight is lightened, the quality of the bow net relation is improved, and simultaneously compared with the prior art, the utility model has simple structure and easier cleaning of dust deposited on the surface layer; finally the utility model discloses a lead the slide rail and adopt independent slide rail locator of leading respectively to fix, lead the slide rail material and be the copper alloy material, the cross section is groove structure, compares with current like product, has improved the stability and the wearability of leading the slide rail, and the product is safe and reliable more, and life is longer.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of the present invention in a state where the insulator is removed;

fig. 4 is a schematic structural view of the middle insulator of the present invention;

fig. 5 is a schematic structural view of the middle guide rail positioner of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a direct current 3kV rigid suspension contact net section insulator, including left busbar 1, right busbar 2, contact wire 3, insulator 4, busbar electricity connection 5, round pin arc angle 6, lead slide rail 7, cross cab apron 8, attract arc angle 9, busbar intermediate junction board 10, busbar link plate 11, short angle steel 12, long angle steel 13, insulator fixed plate 14, lead slide rail locator 15, positioning screw 16, busbar backup pad 17 and stud 18.

The left bus bar 1 and the right bus bar 2 are positioned on the same straight line and are arranged at intervals, and the contact lines 3 are respectively clamped into clamping grooves of the left bus bar 1 and the right bus bar 2. The insulator 4 is used for connecting the left busbar 1 and the right busbar 2, the creepage distance of the insulator 4 is more than or equal to 400mm, and the outer layer umbrella cover of the insulator 4 is of an umbrella skirt structure.

The bus bar middle connecting plate 10 penetrates through two opposite end portions of the left bus bar 1 and the right bus bar 2 and is fixed with the left bus bar and the right bus bar through a bus bar connecting clamping plate 11, the short angle steel 12 is arranged on the end portion, close to the right bus bar, of the left bus bar 1, the long angle steel 13 is arranged on the end portion, close to the left bus bar, of the right bus bar 2, and a bus bar supporting plate 17 is symmetrically connected between the long angle steel 13 and the right bus bar 2. One end of the insulator 4 is connected with the busbar intermediate connection plate 10 and the long angle steel 13 through an insulator fixing plate 14, and the other end is connected with the busbar intermediate connection plate 10 and the short angle steel 12 through the insulator fixing plate 14.

The pair of pin arc corners 6 is fixed on the left bus bar 1 through the bus bar electric connection 5, and the bus bar electric connection 5 is clamped on the left bus bar 1 through the stud bolt 18. A pair of guide slide rails 7 are arranged on the left side and the right side of the left bus bar and the right bus bar in parallel, the cross section of each guide slide rail 7 is of a groove structure, and the guide slide rails are made of copper alloy materials. One end of the guide slide rail 7 is connected with the right bus bar 2 through a transition plate 8, the transition plate 8 is a copper-aluminum transition plate, the middle part of the guide slide rail 7 is connected with the long angle steel 13 through a guide slide rail positioner 15 and a positioning screw 16, and the vertical distance is adjusted through the positioning screw 16 to enable the bottom of the guide slide rail 7 and the bottom of the contact wire 3 to be on the same plane; the other end of the guide slide rail 7 is connected with a arcing horn 9, and the air gap between the arcing horn 9 and the pin arcing horn 6 is adjustable by adjusting the position of the busbar electric connection 5 through a stud 18. The air gap L1 between the guide rail 7 and the left and right bus bars 1 and 2 is more than or equal to 150mm, and the air gap L2 between the arcing angle 9 and the pin arcing angle 6 is more than or equal to 150 mm.

The utility model discloses an installation method: firstly, cutting off a bus bar and a contact wire at the installation position of a sectional insulator, wherein the cutting length of the bus bar and the contact wire is the length of the sectional insulator, and each end of the cut contact wire is reserved with a length of about 450 mm; connecting two ends of the insulator with the busbar, and clamping the contact wire into a clamping groove of the busbar; then a transition plate and a guide sliding rail are respectively installed, the guide sliding rail positioner and a positioning screw rod are connected with the long angle steel, and the positioning screw rod is used for realizing the adjustment of the guide sliding rail in the vertical direction; and a horizontal ruler is adopted for measurement to ensure that the lower bottom surfaces of the guide rail and the contact line are in the same plane, and the plane is parallel to the rail plane, all fasteners are fastened to a specified torque, and the installation is completed.

Claims

1. The utility model provides a direct current 3kV rigid suspension contact net section insulator which characterized in that: including the left and right busbar (1, 2) that are located the interval arrangement on the collinear, be located contact wire (3) of left and right busbar bottom draw-in groove, insulator (4) that are used for connecting left and right busbar, be fixed in a pair of round pin arc angle (6) and a pair of left and right parallel arrangement in left and right busbar both sides on left busbar (1) through busbar electricity connection (5), should lead the one end of slide rail (7) and be connected with right busbar (2) through cab apron (8), the other end is connected with and signs arc angle (9), and the bottom of leading slide rail (7) and the bottom of contact wire (3) are in the coplanar.

2. The direct current 3kV rigid suspension contact line section insulator of claim 1, wherein: the bus bar intermediate junction board (10) is arranged in the end portion, opposite to the left bus bar, of the left bus bar and the right bus bar in a penetrating mode, the bus bar intermediate junction board is fixed with the left bus bar and the right bus bar through a bus bar connecting clamp plate (11), a short angle steel (12) is arranged on the end portion, close to the right bus bar, of the left bus bar (1), a long angle steel (13) is arranged on the end portion, close to the left bus bar, of the right bus bar (2), one end of the insulator (4) is connected with the bus bar intermediate junction board (10) and the long angle steel (13) through an insulator fixing board (14), and the other end of the insulator fixing board (14) is connected with the bus bar intermediate junction.

3. The direct current 3kV rigid suspension contact line section insulator of claim 2, wherein: the middle part of the guide slide rail (7) is connected with the long angle steel (13) through a guide slide rail positioner (15) and a positioning screw rod (16), and the vertical distance is adjusted through the positioning screw rod (16) to enable the bottom of the guide slide rail (7) and the bottom of the contact line (3) to be positioned on the same plane.

4. The direct current 3kV rigid suspension contact line section insulator of claim 2, wherein: bus bar supporting plates (17) are symmetrically connected between the long angle steel (13) and the right bus bar (2).

5. The direct current 3kV rigid suspension contact line section insulator of claim 1, wherein: the creepage distance of the insulator (4) is more than or equal to 400 mm.

6. The direct current 3kV rigid suspension contact line section insulator of claim 1, wherein: the air gap between the guide rail (7) and the left and right bus bars (1, 2) is not less than 150 mm.

7. The direct current 3kV rigid suspension contact line section insulator of claim 1, wherein: the air gap between the arcing angle (9) and the pin arc angle (6) is more than or equal to 150 mm.

8. The direct current 3kV rigid suspension contact line section insulator of claim 1, wherein: the bus bar electric connection (5) is clamped on the left bus bar (1) through the stud bolt (18), and the air gap between the arcing angle (9) and the pin arcing angle (6) is adjustable by adjusting the position of the bus bar electric connection (5) through the stud bolt (18).

9. The direct current 3kV rigid suspension contact line section insulator of claim 1, wherein: the outer layer umbrella cover of the insulator (4) is of an umbrella skirt structure.

10. The direct current 3kV rigid suspension contact line section insulator of claim 1, wherein: the cross section of the guide sliding rail (7) is of a groove structure.