CN213459245U

CN213459245U - Elastic insulator core and insulator for urban rail transit

Info

Publication number: CN213459245U
Application number: CN202022389723.9U
Authority: CN
Inventors: 马民; 简阳; 卢涛; 李连杰
Original assignee: Shenzhen Yinxing Insulator Electrified Railway Equipment Co ltd
Current assignee: Shenzhen Yinxing Insulator Electrified Railway Equipment Co ltd
Priority date: 2020-10-25
Filing date: 2020-10-25
Publication date: 2021-06-15
Anticipated expiration: 2030-10-25

Abstract

The utility model provides an elastic insulator core and insulator for urban rail transit, wherein, this insulator core includes gold, lower gold and plug, it establishes on the plug upper end to go up the gold cover, down the gold cover be in on the lower extreme of plug, down the gold includes down gold body, interior inserts, elastic component and gasket, the gasket is fixed this internal and the lower extreme that is located the plug of gold down, interior inserts movably is located this internal the below of gasket down, the elastic component cover is established on the interior inserts and the upper end of elastic component offsets with the gasket, and when external force acted on interior inserts, under the effect of elastic component, interior inserts can be at this internal axial displacement of following of gold down. The utility model has the advantages of do not produce electric arc between pantograph and the contact net, use safer.

Description

Elastic insulator core and insulator for urban rail transit

Technical Field

The utility model relates to an insulator field especially relates to an elastic insulator core and insulator for urban rail transit.

Background

In recent years, the railway industry of China is continuously developed, high-speed rails and subways are more and more popularized, insulators are used as insulating controls for electrified railway contact networks, the using amount of the insulators is larger and larger, the demand is promoted year by year, and meanwhile, the national requirements on the performance of the insulators for the electrified railway contact networks are higher and higher; at present, the lower hardware of insulator and current busbar are the rigid connection, and the pantograph device is installed at the locomotive top, and when subway brake or start-up, will produce the tendency clearance between pantograph and the contact net like this to produce electric arc, electric arc has very big influence to the safe operation of power supply and distribution system, thereby directly influences the safe operation of high-speed railway or subway.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses to the society provide one kind between pantograph and the contact net do not produce electric arc, use safer elastic insulator core for urban rail transit.

The utility model discloses still provide the urban rail transit that does not produce electric arc, use safer elastic insulator to the society.

The technical scheme of the utility model is that: the utility model provides an elastic insulator core for urban rail transit, includes gold, lower gold and plug, it establishes on the plug upper end to go up the gold cover, down the gold cover be in on the lower extreme of plug, down the gold includes down gold body, interior inserts, elastic component and gasket, the gasket is fixed this internal and the lower extreme that is located the plug of gold down, interior inserts movably is located this internal below of gasket down, the elastic component cover is established on the interior inserts and the upper end of elastic component offsets with the gasket, and when external force acted on interior inserts, under the effect of elastic component, interior inserts can be at this internal axial displacement of following of gold down.

As the utility model discloses an improvement, the lower port of lower gold spare body is along radially being equipped with the bulge loop, the surface of interior inserts be equipped with the first bulge loop that the bulge loop matches, work as interior inserts are located down when the gold spare is originally internal, first bulge loop supports and leans on thereby this internal interior inserts of preventing from dropping from this internal in gold spare down with interior inserts installation on the bulge loop.

As the utility model discloses an improvement, the surface of gasket is equipped with two at least lugs, the inner wall of gold spare body is equipped with a step down, this step below be equipped with two with be equipped with two the recess that the lug matches, through thereby lug and recess's cooperation is fixed the gasket this internally down the gold spare.

As an improvement of the utility model, the upper metal piece and the lower metal piece are respectively connected with the mandril in a compression mode.

As the improvement of the utility model, the outer surface of the core rod is provided with at least one circle of second convex ring, the second convex ring is positioned between the upper metal piece and the lower metal piece.

The utility model discloses an another scheme is: the elastic insulator for urban rail transit comprises an insulator core body and a porcelain piece, wherein a through hole which is communicated up and down is formed in the middle of the porcelain piece along the axial direction, and the insulator core body is installed in the through hole of the porcelain piece through an insulating glue layer; the insulator core body is the insulator core body.

As the utility model discloses an improvement, the surface of gasket is equipped with two at least lugs, the inner wall of gold spare body is equipped with and two down the recess that the lug matches, thereby pass through the lug is fixed the gasket with the cooperation of recess in the gold spare body down.

The utility model comprises an upper metal part, a lower metal part and a core rod, wherein the upper metal part is sleeved on the upper end of the core rod, the lower metal part is sleeved on the lower end of the core rod, the lower metal part comprises a lower metal part body, an inner embedded part, an elastic part and a gasket, the gasket is fixed in the lower metal part body and positioned at the lower end of the core rod, the inner embedded part is movably positioned below the gasket in the lower metal part body, the elastic part is sleeved on the inner embedded part, and the upper end of the elastic part is abutted against the gasket; the utility model discloses when using, the lower gold of insulator is rigid connection with the busbar, the pantograph device is installed at the locomotive top, when external force acts on down the gold, act on interior inserts simultaneously promptly, under the effect of elastic component, interior inserts can be along axial displacement in the gold is internal down, this moment promptly, it is elastic connection to be connected between gold and the pantograph down, be connected between pantograph and the contact net also elastic connection, when subway brake perhaps starts like this, just can not produce the angle clearance between pantograph and the contact net, just also can not produce electric arc, the operation of power supply and distribution system is safer, thereby make the operation of subway safer. Therefore, the utility model has the advantages of do not produce electric arc between pantograph and the contact net, use safer.

Drawings

Fig. 1 is a longitudinal cross-sectional view of a first embodiment of an insulator core of the present invention.

Fig. 2 is a cross-sectional view of the insert of fig. 1.

Fig. 3 is a cross-sectional view of the gasket of fig. 1.

FIG. 4 is a top view of the shim and lower hardware body after they have been mated.

Fig. 5 is a cross-sectional view of the lower metal part of fig. 1.

Fig. 6 is a schematic view of the elastic member of fig. 1.

Figure 7 is a longitudinal cross-sectional view of a second embodiment of the insulator core of the present invention.

Fig. 8 is a half sectional view of an embodiment of an insulator according to the present invention.

Fig. 9 is a front view of fig. 8.

Detailed Description

Please refer to fig. 1 to 6, and fig. 1 to 6 disclose a first embodiment of an elastic insulator core for urban rail transit, which includes an upper metal 1, a lower metal 2 and a mandrel 3, wherein the upper metal 1 is sleeved on the upper end of the mandrel 3, the lower metal 2 is sleeved on the lower end of the mandrel 3, and the upper metal 1 and the lower metal 2 are coaxially disposed. Lower gold (2) includes gold (2) body 21, insert 22, elastic component 23 and gasket 24 down, gasket 24 is fixed down in the gold (21) and be located the lower extreme of plug 3, insert 22 movably is located down in the gold (21) the below of gasket 24, elastic component 23 cover is established insert 24 is last and the upper end of elastic component 23 offsets with gasket 24, and when external force acted on insert 22, under the effect of elastic component 23, insert 22 can be along axial displacement in gold (21) down. The utility model discloses when using, the lower gold of insulator 2 is connected with the pantograph on high-speed railway or the subway roof, when external force acts on gold 2 down, act on the interior inserts 22 of gold promptly down, under the effect of elastic component 23, interior inserts 22 can remove along axial I in gold body 21 down, this moment promptly, it is elastic connection to be connected between gold 2 and the pantograph (invisible in the picture) down, also be elastic connection between pantograph and the contact net, when subway brake or start-up like this, just can not produce the angle clearance between pantograph and the contact net, just do not produce electric arc yet, the operation of power supply and distribution system is safer, thereby make the operation of high-speed railway or subway safer.

In the utility model, preferably, the lower port of the lower metal body 21 is provided with a convex ring 211 along the radial direction, the outer surface of the inner insert 22 is provided with a first convex ring 221 matched with the convex ring 211, when the inner insert 22 is positioned in the lower metal body 21, the first convex ring 221 is abutted against the convex ring 211 to mount the inner insert 22 in the lower metal body 21 so as to prevent the inner insert 22 from falling from the lower metal body 21; in this embodiment, specifically, when the insert 22 is at the lowest position in the lower metal body 21, that is, the lower end surface of the insert 22 protrudes 3mm from the lower end surface of the lower metal body 21 (as shown in fig. 1), that is, the longest distance L that the insert 22 can move upward when being stressed is 3 mm.

The utility model discloses in, preferably, the surface of gasket 24 is equipped with two at least lugs 241 (as shown in fig. 3 to 5), the inner wall of gold spare body 21 is equipped with a step 213 down, this step 213 below be equipped with two with the recess 212 that lug 241 matches, thereby through lug 241 fixes gasket 24 with the cooperation of recess 212 in the gold spare body 21 down.

The present invention may also be embodied in a second embodiment (as shown in fig. 7), which is substantially the same as the first embodiment except that: at least one circle of second convex ring 31 is arranged on the outer surface of the core rod 3, and the second convex ring 31 is positioned between the upper metal piece 1 and the lower metal piece 2, specifically, the second convex ring 31 has two circles in the embodiment.

Referring to fig. 8 and 9, fig. 8 and 9 disclose an elastic insulator for urban rail transit, which includes an insulator core 5 and a porcelain 4, wherein a through hole 41 penetrating up and down is axially formed in the middle of the porcelain 4, and the insulator core 5 is installed in the through hole 41 of the porcelain 4 through an insulating adhesive layer 6; the insulator core body 5 is the insulator core body; specifically, the utility model discloses when the installation, earlier fix gasket 24 in gold spare body 21 down, then install elastic component 23 on interior inserts 22 again, and adorn interior inserts 22 in the gold spare body 21 down, with going up gold spare 1 and the both ends of gold spare body 21 crimping in plug 3 down, do the back with insulator core 5, use fixed work piece to make insulator core 5 location, the aperture of the through-hole 41 at porcelain 4 center slightly is greater than the biggest external diameter of insulator core 5, overlaps through-hole 41 the surface of insulator core 5, then to filling insulating cement between the surface of through-hole 41 inner wall and insulator core 5 and form insulating cement layer 6, the insulating cement of this insulating cement layer 6 can adopt the high-pressure resistant insulating cement that model that shenzhen mausyuxing insulator railway electrification equipment limited produced is YX-BO 1. In the utility model, the combination between the insulator core body 5 and the porcelain piece 4 is firmer, the insulator with the structure of the utility model has better integrity, better mechanical property and less possibility of fracture;

the utility model discloses in, preferably, the lower port of lower gold body 21 radially is equipped with protruding circle 211, the surface of interior inserts 22 be equipped with first bulge loop 221 that protruding circle 211 matches, work as interior inserts 22 is located down in the gold body 21, thereby first bulge loop 221 supports and leans on install interior inserts 22 in the gold body 21 down on protruding circle 211 and prevent that interior inserts 22 from dropping down in the gold body 21. In this embodiment, specifically, when the insert 22 is at the lowest position in the lower metal body 21, that is, the lower end surface of the insert 22 protrudes 3mm from the lower end surface of the lower metal body 21, that is, the longest distance L that the insert 22 can move upward when being stressed is 3 mm.

The utility model discloses in, preferably, the surface of gasket 24 is equipped with two at least lugs 241, the inner wall of lower gold body 21 be equipped with two the recess 212 that lug 241 matches, through thereby lug 241 fixes gasket 24 with the cooperation of recess 212 in the lower gold body 21.

In the present invention, preferably, the upper metal part 1 and the lower metal part 2 are respectively pressed against the core rod 3.

In the present invention, it is preferable that the outer surface of the core rod 3 is provided with at least one circle of second convex ring 31, and the second convex ring 31 is located between the upper metal member 1 and the lower metal member 2.

Claims

1. The utility model provides an elastic insulator core for urban rail transit which characterized in that: comprises an upper metal part (1), a lower metal part (2) and a core rod (3), wherein the upper metal part (1) is sleeved on the upper end of the core rod (3), the lower metal part (2) is sleeved on the lower end of the core rod (3), the lower metal part (2) comprises a lower metal part body (21), an inner insert (22), an elastic part (23) and a gasket (24), the gasket (24) is fixed in the lower metal part body (21) and is positioned at the lower end of the mandrel (3), the inner insert (22) is movably positioned below the gasket (24) in the lower metal part body (21), the elastic piece (23) is sleeved on the inner embedded piece (24), the upper end of the elastic piece (23) is propped against the gasket (24), when external force acts on the inner embedded piece (22), the inner insert (22) can move axially in the lower metal body (21) under the action of the elastic piece (23).

2. The elastic insulator core for urban rail transit according to claim 1, wherein: the lower port of the lower metal part body (21) is provided with a convex ring (211) along the radial direction, the outer surface of the inner insert (22) is provided with a first convex ring (221) matched with the convex ring (211), and when the inner insert (22) is positioned in the lower metal part body (21), the first convex ring (221) abuts against the convex ring (211) to install the inner insert (22) in the lower metal part body (21) so as to prevent the inner insert (22) from falling out of the lower metal part body (21).

3. The elastic insulator core for urban rail transit according to claim 2, wherein: the outer surface of the gasket (24) is provided with at least two convex blocks (241), the inner wall of the lower metal part body (21) is provided with a step (213), two grooves (212) matched with the convex blocks (241) are arranged below the step (213), and the gasket (24) is fixed in the lower metal part body (21) through the matching of the convex blocks (241) and the grooves (212).

4. The elastic insulator core for urban rail transit according to any one of claims 1 to 3, wherein: the upper metal piece (1) and the lower metal piece (2) are respectively in compression joint with the core rod (3).

5. The elastic insulator core for urban rail transit according to claim 4, wherein: at least one circle of second convex rings (31) are arranged on the outer surface of the core rod (3), and the second convex rings (31) are located between the upper metal piece (1) and the lower metal piece (2).

6. The utility model provides an elastic insulator for urban rail transit, includes insulator core (5) and porcelain spare (4), its characterized in that: a through hole (41) which is through up and down is formed in the middle of the porcelain piece (4) along the axial direction, and the insulator core body (5) is installed in the through hole (41) of the porcelain piece (4) through an insulating adhesive layer (6); the insulator core (5) according to any of the preceding claims 1 to 5.

7. The elastic insulator for urban rail transit according to claim 6, wherein: the lower port of the lower metal part body (21) is provided with a convex ring (211) along the radial direction, the outer surface of the inner insert (22) is provided with a first convex ring (221) matched with the convex ring (211), and when the inner insert (22) is positioned in the lower metal part body (21), the first convex ring (221) abuts against the convex ring (211) to install the inner insert (22) in the lower metal part body (21) so as to prevent the inner insert (22) from falling out of the lower metal part body (21).

8. The elastic insulator for urban rail transit according to claim 7, wherein: the outer surface of the gasket (24) is provided with at least two convex blocks (241), the inner wall of the lower metal part body (21) is provided with a groove (212) matched with the two convex blocks (241), and the gasket (24) is fixed in the lower metal part body (21) through the matching of the convex blocks (241) and the groove (212).

9. The elastic insulator for urban rail transit according to any one of claims 6 to 8, characterized in that: the upper metal piece (1) and the lower metal piece (2) are respectively in compression joint with the core rod (3).

10. The elastic insulator for urban rail transit according to claim 9, wherein: at least one circle of second convex rings (31) are arranged on the outer surface of the core rod (3), and the second convex rings (31) are located between the upper metal piece (1) and the lower metal piece (2).