CN201951276U

CN201951276U - Elastic positioning wire clamp for busbar

Info

Publication number: CN201951276U
Application number: CN2010206170018U
Authority: CN
Inventors: 邢甲第; 李增勤; 邓甲录
Original assignee: Baoji Equipment Co Ltd of China Railway Electrification Engineering Group Co Ltd
Current assignee: China Iron and high - speed electrical equipment Limited by Share Ltd
Priority date: 2010-11-22
Filing date: 2010-11-22
Publication date: 2011-08-31
Anticipated expiration: 2020-11-22

Abstract

The utility model provides an elastic positioning wire clamp for a busbar, comprising a body, a connecting bolt, and a spring, the body comprises a wire clamp body and a fixed block body, a channel section I is manufactured at the left end of the wire clamp body, the fixed block body is fixed at the right end, and a channel section II symmetrical to the channel section I is formed between the fixed block body and the wire clamp body; a spring and a nut sleeve the connecting bolt, the connecting bolt is inserted in a through hole at the center of the wire clamp body, and the spring is located in the wire clamp body, and the nut is located at the external of the wire clamp body; an insulating pad is respectively inlaid in the channel section I and channel section ii, and symmetrical busbar clamping grooves are manufactured at the internal end surfaces of the insulating pads. The elastic positioning wire clamp can improve axial elasticity of busbar positioning points, overcome uneven wearing appeared upon rigid suspension contact wires, particularly under bad conditions of larger wear extent of a curved section etc., improve locomotive current-bearing quality, and satisfy requirement of subway trains for continuous improvement of operation speed.

Description

Bus duct elasticity steady ear

Technical field

The utility model belongs to the rigid suspended electric power system manufacturing technology of urban track traffic field, is specifically related to a kind of bus duct elasticity steady ear.

Background technology

The rigid suspended electric power system of urban track traffic is by the bus duct steady ear bus duct vertical support to be hung the circuit top, by bus duct clamping contact wire, because existing bus duct steady ear is axially nonelastic, cause bus duct locating point axial elasticity relatively poor, cause rigid suspended contact wire irregular wear to occur, especially bigger in the segment of curve abrasion loss, influence the locomotive current carrying quality.Along with the raising of subway train overall trip speed, existing bus duct position line can not satisfy the metro operation needs.

The utility model content

The technical matters that the utility model solves: a kind of bus duct elasticity steady ear is provided, improve bus duct locating point elasticity vertically, overcome the irregular wear that rigid suspended contact wire occurs, especially in unfavorable conditions such as the segment of curve abrasion loss are bigger, improve the locomotive current carrying quality, satisfy the requirement that subway train operation speed improves constantly.

The technical solution adopted in the utility model: a kind of bus duct elasticity steady ear, have body, tie bolt and spring, described body is made up of wire clip body and fixed block body, the left end of wire clip body is shaped on draw-in groove I, right-hand member is fixed with the fixed block body, and makes between fixed block body and the wire clip body and to form a draw-in groove II with draw-in groove I symmetry; Spring and nut sleeve are contained on the tie bolt, and tie bolt is inserted on the through hole of wire clip body central authorities, and spring is positioned at wire clip body, and nut is positioned at outside the wire clip body; All be embedded with insulating gasket in described draw-in groove I and the draw-in groove II, and be shaped on symmetrical bus duct holding tank on the inner end surface of insulating gasket.

The right-hand member of described wire clip body is shaped on screw, and the fixed block body is by being bolted on the screw.

Be shaped on positive stop lug boss on the described tie bolt, and the external diameter of positive stop lug boss is greater than the internal diameter of through hole.

The top of described bus duct holding tank is flexure strip, and the lower surface of flexure strip is an arc surface.

Described two insulating gaskets are separately fixed on wire clip body and the fixed block body by elastic cylindrical pin.

The utility model advantage compared with prior art:

1, the utility model is by improving the axial elasticity of bus duct locating point, make motorcycle pantograph have good tracing ability to rigid suspended contact wire, prevent to produce the contact hard spot, overcome the irregular wear that rigid suspended contact wire occurs, especially in unfavorable conditions such as the segment of curve abrasion loss are bigger, thereby it is more stable to be flowed effect when road speed improves.

2, the utility model body adopts the two-piece type array mode, and on-the-spot needs one-sided installation, and uses fastener few, can save field installation time, installs more convenient quick than bilateral.

3, the utility model can produce the moderate finite deformation amount by the spring that is installed in the wire clamp, flexure strip by bus duct holding tank top can be realized the infinitesimal deformation amount, under the combined action of spring and flexure strip, especially when locomotive is run at high speed, can improve existing rigid suspended bow net characteristic greatly, thereby obtain satisfied current carrying quality.

4, be shaped on positive stop lug boss on the utility model tie bolt, guarantee that spring is operated in optimum regime, prevent that spring from producing excessive deformation, the service life of having improved spring greatly.

5, the top of the utility model bus duct holding tank is flexure strip, and the contact interface of flexure strip and bus duct adopts arc surface, can guarantee being free to slide of road along the line direction when bus duct is affected by thermal expansion and contraction, also can prevent arcing discharge between bus duct and wire clip body.

6, the utility model unit design is reasonable, long service life, and the standardization level height has satisfied the operating needs that the subway train overall trip speed improves constantly.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model wire clip body structural representation;

Fig. 3 is the utility model fixed block body construction scheme drawing;

Fig. 4 is the utility model running condition scheme drawing.

The specific embodiment

Below in conjunction with accompanying

drawing

1,2,3,4 a kind of embodiment of the present utility model is described.

A kind of bus duct elasticity steady ear, its body 12 is made up of wire clip body 1 and fixed block body 6, the left end of wire clip body 1 is shaped on draw-in groove I 13, right-hand member is shaped on screw 16, fixed block body 6 is fixed on the screw 16 by bolt 3, and makes between fixed block body 6 and the wire clip body 1 and to form a draw-in groove II14 with draw-in groove I13 symmetry; Spring 2, nut 10 and packing ring 11 are sleeved on the tie bolt 9, tie bolt 9 is inserted on the through hole 18 of wire clip body 1 central authorities, and spring 2 is positioned at wire clip body 1, and nut 10 and packing ring 11 are positioned at outside the wire clip body 1, and by rivet 22 nut 10 is fixed on the tie bolt 9; Be shaped on positive stop lug boss 17 on the tie bolt 9, and the external diameter of positive stop lug boss 17 is greater than the internal diameter of through hole 18.All be embedded with insulating gasket 7 in draw-in groove I 13 and the draw-in groove II14, and two insulating gaskets 7 are separately fixed on wire clip body 1 and the fixed block body 6 by elastic cylindrical pin 8.Be shaped on symmetrical bus duct holding tank 15 on the inner end surface of insulating gasket 7, and the top of bus duct holding tank 15 is flexure strip 19, and the lower surface of flexure strip 19 is an arc surface.

During use, tie bolt 9 is connected with vertical support insulator 20, positioning table with left side, bus duct 21 upper ends directly is inserted in the bus duct holding tank 15 in left side then, bus duct holding tank 15 by the right side is sleeved on fixed block body 6 on the positioning table on right side, bus duct 21 upper end then, at last fixed block body 6 is fixed on the screw 16 of wire clip body 1 right-hand member by bolt 3, has realized one-sided installation, purpose fast and easily.After the bus duct installation, because driving body 12, the bus duct deadweight descends slightly, elasticity by spring 2 supports, this resilient mounting can make motorcycle pantograph that rigid suspended contact wire is had good tracing ability in the locomotive operation, prevent to produce the contact hard spot, overcome the irregular wear that rigid suspended contact wire occurs, especially in unfavorable conditions such as the segment of curve abrasion loss are bigger, thereby it is more stable to be flowed effect when road speed improves.

Claims

1. bus duct elasticity steady ear, have body (12), tie bolt (9) and spring (2), it is characterized in that: described body (12) is made up of wire clip body (1) and fixed block body (6), the left end of wire clip body (1) is shaped on draw-in groove I (13), right-hand member is fixed with fixed block body (6), and makes draw-in groove II (14) symmetrical with draw-in groove I (13) of formation between fixed block body (6) and the wire clip body (1); Spring (2) and nut (10) are sleeved on the tie bolt (9), and tie bolt (9) is inserted on the through hole (18) of wire clip body (1) central authorities, and spring (2) is positioned at wire clip body (1), and nut (10) is positioned at outside the wire clip body (1); All be embedded with insulating gasket (7) in described draw-in groove I (13) and the draw-in groove II (14), and be shaped on symmetrical bus duct holding tank (15) on the inner end surface of insulating gasket (7).

2. bus duct elasticity steady ear according to claim 1 is characterized in that: the right-hand member of described wire clip body (1) is shaped on screw (16), and fixed block body (6) is fixed on the screw (16) by bolt (3).

3. bus duct elasticity steady ear according to claim 1 is characterized in that: be shaped on positive stop lug boss (17) on the described tie bolt (9), and the external diameter of positive stop lug boss (17) is greater than the internal diameter of through hole (18).

4. bus duct elasticity steady ear according to claim 1 is characterized in that: the top of described bus duct holding tank (15) is flexure strip (19), and the lower surface of flexure strip (19) is an arc surface.

5. according to claim 1 or 2 or 3 or 4 described bus duct elasticity steady ears, it is characterized in that: described two insulating gaskets (7) are separately fixed on wire clip body (1) and the fixed block body (6) by elastic cylindrical pin (8).