KR102467472B1 - support clamp structure for R-bar - Google Patents

Abstract

The present invention relates to a rigid catenary line support clamp structure, and more particularly, in a state in which a rigid bar connected to a catenary line and a pantograph installed in the tram are in contact, the catenary line and the pantograph act as a buffer by vibration generated when the tram is running at high speed. It relates to a rigid catenary support clamp structure that stably maintains the contact state and suppresses damage and wear of the catenary at the same time.
In the present invention for achieving the above technical problem, the sleeve axis is formed to protrude upward in the center of the upper surface, a screw fastening part is formed on the upper part of the sleeve axis, and a body plate in which a surface contact part is formed on both sides of the flange part of the rigid electric train line. ; a sleeve member surrounding the sleeve shaft so that the sleeve shaft slides up and down; a breakaway preventing nut that is screwed into the screw fastening portion of the sleeve shaft to prevent the sleeve member from being separated from the sleeve shaft; Fixing means for fixing the rigid catenary line to the lower part of the main body plate; and a bracket connection member screwed to the outside of the sleeve member and coupled to the bracket head bracket.

Description

Rigid catenary support clamp structure {support clamp structure for R-bar}

The present invention relates to a rigid catenary line support clamp structure, and more particularly, in a state in which a rigid bar to which a catenary line is connected and a pantograph installed on the tram are in contact, it acts as a buffer against vibration generated when the tram is running, thereby improving the stability of the catenary line and the pantograph. It relates to a rigid catenary support clamp structure that stably maintains the contact state and at the same time suppresses damage and abrasion of the catenary.

A train refers to a vehicle that is operated using electric power while driving. These trams are configured so that the power of the tram lines installed along the track direction is supplied to the tram and the tram is operated. Conventionally, the method for supplying current to the tram (Over Head System), the third rail type ( Third Rail System) and rigid system are proposed and used.

In particular, a rigid system is widely used in the tunnel section to enable a stable supply of electric power to the tram.

This Rigid System integrates the catenary into a rigid body (hereinafter referred to as 'rigid catenary') and installs it using a separate structure such as a bracket. It is applied to places where space is limited.

In fact, the height of the width including the rigid body and the catenary of the rigid catenary is about 90 to 120mm, and the required height between the current collecting contact of the catenary and the upper ceiling of the tunnel considering the support and electrical separation is only about 500mm.

Therefore, since the installation space required for the rigid catenary is small, the construction cost can be significantly reduced in a new tunnel, and there are advantages in maintenance work inside the tunnel.

The rigid catenary line is expressed as R-Bar by shortening the Rigid Bar, and the rigid catenary line in which the shape of the double cross section is similar to a T is specially called T-Bar. Although the R-Bar is widely used because of its excellent workability and current collection performance compared to the T-Bar, in Korea, the T-Bar is applied to the DC section and the R-Bar is applied to the AC section.

Since the rigid electric wire has to serve as a conductor capable of supplying electric power to the tram, a light aluminum alloy material is mainly applied, and expansion and contraction occur according to the change in ambient temperature. .

As shown in FIG. 5, such a conventional rigid system is configured so that the tram line connected to the rigid tram line is in contact with the pantograph of the tram, so that stable power is supplied to the tram.

At this time, the rigid system, as shown in FIG. 5, combines the bracket 1b and the hanger 5 provided at the end of the barrier 1a constituting the rigid catenary bracket 1, and the hanger 5 It is common that the rigid bar 3 is connected to the lower end of the ) so that the electric wire 2 in contact with the pantograph 4 of the tram is connected to the rigid bar 3.

However, when the above conventional rigid catenary connection structure vibrates the pantograph 4, there is a problem in that it is difficult to stably maintain the contact state with the catenary wire 2.

In order to solve such a problem, as in the previously registered application No. 10-1910230 (Rigid Catenary Line Connection Structure), the rigid catenary line connection structure that can stably maintain the contact between the catenary line and the pantograph by facilitating the alignment of the part where the rigid catenary line is connected However, such a conventional rigid catenary connection structure, etc., is difficult to absorb vibration in response to the vibration caused by the uplift of the pantograph, and it is difficult to stably maintain the contact between the pantograph and the catenary, and the pantograph When the flow is transferred to the rigid bar, there is a problem in that the rigid bar and the rigid catenary bracket connected thereto may be damaged.

Korean Patent Registration No. 10-1910230 has been registered.

The present invention has been devised to solve all the problems of the prior art as described above, and the purpose of the technical configuration of the present invention is to generate when the tram is running in a state in which the rigid body bar to which the tram line is connected and the pantograph installed in the tram are in contact. It is to provide a rigid catenary line support clamp structure that stably maintains the contact state between the catenary and the pantograph by acting as a buffer against vibration to improve the current collection performance and at the same time suppresses damage and abrasion of the catenary.

In the present invention for achieving the above technical problem, the sleeve axis is formed to protrude upward in the center of the upper surface, a screw fastening part is formed on the upper part of the sleeve axis, and a body plate in which a surface contact part is formed on both sides of the flange part of the rigid electric train line. ; a sleeve member surrounding the sleeve shaft so that the sleeve shaft slides up and down; a breakaway preventing nut that is screwed into the screw fastening portion of the sleeve shaft to prevent the sleeve member from being separated from the sleeve shaft; Fixing means for fixing the rigid catenary line to the lower part of the main body plate; and a bracket connection member screwed to the outside of the sleeve member and coupled to the bracket head bracket.

In addition, the lower end of the sleeve shaft is characterized in that it is integrally fixed to the main body plate by welding.

In addition, it includes a separation preventing means for preventing the separation preventing nut screwed to the sleeve shaft from being separated from the sleeve shaft due to unscrewing due to vibration, and the separation preventing means is formed on the outer surface of the upper end of the sleeve shaft pin insertion hole; a pin through-hole formed on an outer surface of the separation preventing nut; and a fixing pin that penetrates through the pin through hole and is inserted into the pin insertion hole to fix the separation preventing nut to the sleeve shaft.

In addition, the fixing means includes a plurality of first bolt holes formed in the surface contact portion of the main body plate, a pressure plate for pressing the lower end surface of a flange portion protruding from both upper side surfaces of the rigid body catenary, and one end portion welded to both sides of the pressure plate. In a fixed state, the other end protrudes upward, characterized in that it includes a first bolt portion through which the first bolt hole is fastened with the first nut.

In addition, a groove is formed along the longitudinal direction on the lower surface of the flange portion, and an insertion protrusion protruding upward is formed on the upper surface of the pressing plate to be inserted into the groove and prevent the rigid electric train from shaking in the left and right directions. do.

In addition, the bracket connecting member includes a support plate in which a coupling hole is formed at the center so as to be screwed to the outer side of the sleeve member, and second bolt holes are formed so that the second bolt portion penetrates on both sides based on the coupling hole, and the support It is coupled to both lower portions of the plate and is characterized in that it includes a fixing plate that protrudes from the upper surface in a state in which one end of the second bolt portion is welded and fixed so that the second nut is fastened through the second bolt hole.

In addition, the fixing guide means includes a first magnet provided on the lower surface of the surface contact portion of the main body plate and a second magnet provided on the upper surface of the flange portion protruding from both upper side surfaces of the rigid body catenary and attached to the first magnet. It is characterized by including.

According to the present invention, in a state in contact with the pantograph installed on the rigid bar tram to which the catenary line is connected, it acts as a buffer due to the vibration of the pantograph generated when the tram is running to stably maintain the contact state between the catenary and the pantograph, and at the same time Damage and wear can be prevented.

In addition, in order to prevent the sleeve member from being separated from the sleeve shaft due to loosening of screws due to pantograph vibration, train safety accidents can be prevented in advance by providing a separation preventing means by fastening the separation preventing nut.

In addition, by providing a fixing guide means to arbitrarily attach the rigid catenary line to the main body plate, the rigid catenary line can be easily and conveniently fixed to the main body plate using the fixing means.

In addition, by inserting an insertion protrusion protruding from the upper surface of the pressing plate into the groove formed on the lower surface of the flange portion, it is possible to prevent the rigid electric wire from shaking in the left and right directions, thereby suppressing damage and wear of the rigid electric wire due to vibration.

1 is an exploded perspective view showing a rigid catenary support clamp structure according to the present invention.
Figure 2 is a combined perspective view of Figure 1;
Figure 3 is a front view of Figure 2;
Figure 4 is a state of use of the rigid catenary line support clamp structure according to the present invention.
Figure 5 is a schematic diagram showing a conventional rigid catenary line connection structure.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and described in the detailed description.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

Terms including ordinal numbers such as second and first may be used to describe various components, but the components are not limited by the terms.

Terms used herein are used only for the purpose of distinguishing one component from another. For example, a second element may be termed a first element, and similarly, a first element may be termed a second element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view showing a rigid catenary support clamp structure according to the present invention, FIG. 2 is a combined perspective view of FIG. 1, and FIG. 3 is a front view of FIG.

The rigid catenary line support clamp structure of the present invention will be described with reference to FIGS. 1 to 3.

First, the present invention acts as a buffer for vibration generated when the tram is running in a state in which the rigid bar to which the catenary line is connected and the pantograph installed on the tram are in contact, thereby stably maintaining the contact state between the catenary and the pantograph, and at the same time, It relates to a rigid catenary support clamp structure that suppresses damage and wear. (400) and a bracket connection member (500).

On the other hand, the rigid catenary line 20 is composed of a catenary 21 that supplies current through electrical contact with a pantograph (not shown in the drawing) installed on the top of the tram and a rigid body 22 coupled to the catenary line 21, and is usually It is used and detailed description is omitted.

The body plate 100 is made of stainless steel and has a square plate shape, and a sleeve shaft 110 protrudes upward from the center of the upper surface.

In addition, one end of the sleeve shaft 110 is fixed to and integrated with the main body plate 100 by welding, and a screw thread is formed on the outer circumference so that the release prevention nut 300, which will be described later, is screwed to the top of the sleeve shaft 110. A screw fastening part 111 is provided.

In addition, on both sides of the main body plate 100, surface contact parts 120 are formed in which the flange parts 23 of the rigid catenary line 20 are in surface contact.

The sleeve member 200 is coupled to surround the outside of the sleeve shaft 110 described above, and a shaft through-hole 210 is formed on the inside so that the sleeve shaft 110 slides up and down, and a bracket connection to be described later is formed on the outer circumference. A threaded portion 220 is formed so that the member 500 is screwed together.

At this time, the threaded portion 220 is preferably formed of a hexagonal screw so as to be firmly screwed.

The anti-separation nut 300 is screwed to the screw fastening part 111 of the sleeve shaft 110 in a state in which the sleeve shaft 110 passes through the shaft through hole 210 of the sleeve member 200, and the sleeve member 200 ) serves to prevent separation from the sleeve shaft 110, and a screw thread is formed on the inner circumference so as to be engaged with the screw thread of the screw fastening part 111.

On the other hand, the anti-separation nut 300 screwed to the screw fastening part 111 of the sleeve shaft 110 prevents the loosening of the screw due to shock and vibration, so that the nut 300 for preventing separation from the sleeve shaft 110 ) Includes a separation prevention means 600 that prevents separation.

Such separation preventing means 600 includes a pin insertion hole 610 formed by drilling on the outer surface of the screw fastening part 111 of the sleeve shaft 110 and a pin penetration formed on the outer surface of the nut 300 for preventing separation. It is configured to include a fixing pin 630 that penetrates through the hole 620 and the pin through hole 620 and is inserted into the pin insertion hole 610 to fix the nut 300 for preventing separation to the sleeve shaft 110. .

In addition, a shock absorbing member 700 is provided between the anti-separation nut 300 and the sleeve member 200 to absorb impact. Such a buffer member 700 is made in the form of a circular ring and is composed of a non-metallic material such as plastic, so that the metal material, the release prevention nut 300 and the sleeve member 200, are damaged or worn due to friction with each other due to impact. it inhibits

Meanwhile, a washer 800 is provided between the anti-leaving nut 300 and the buffer member 700 so that the anti-leaving nut 300 can be firmly tightened and fixed.

The fixing means 400 fixes the rigid catenary line 20 to the lower portion of the body plate 100 described above, such a fixing means 400 is a plurality of surface contact parts 120 of the body plate 100 One end is welded to both sides of the pressurizing plate 420 and the pressurizing plate 420 for pressing the lower end surface of the first bolt hole 410 formed separately and the flange portion 23 protruding from both upper side surfaces of the rigid catenary line 20. The other end protrudes upward in a fixed state, and is configured to include a first bolt portion 430 through which the first nut 431 is fastened through the first bolt hole 410 .

At this time, a protrusion insertion space 440 is formed between the body plate 100 and the pressing plate 420 so that the flange portion 23 protruding from both sides of the upper portion of the rigid catenary line 20 is inserted.

That is, after inserting the flange portion 23 of the rigid catenary line 20 into the protrusion insertion space 440, the pressing plate 420 is tightened by fastening the first nut 431 to the first bolt portion 430. While going up, the flange part 23 is fixed by pressing it in close contact with the surface contact part 120 of the body plate 100.

In addition, a groove 24 is formed on the lower surface of the flange portion 23 along the longitudinal direction, and an insertion protrusion 421 inserted and seated in the groove 24 protrudes upward from the upper surface of the pressing plate 420. .

That is, as the insertion protrusion 421 is inserted into the groove 24, it is possible to prevent the rigid catenary wire 20 from shaking in the left and right directions, thereby suppressing damage and wear of the rigid catenary wire 20.

Meanwhile, a washer 800 is provided between the surface contact portion 120 and the first nut 431 so that the first nut 431 can be firmly tightened and fixed.

The bracket connection member 500 is coupled to the bracket head bracket 32 in a screwed state on the outside of the sleeve member 200 described above, and such a bracket connection member 500 is attached to the outside of the sleeve member 200. A support plate 510 in which a coupler 511 is formed in the center so as to be screwed together, and second bolt holes 512 through which the second bolt part 530 passes are formed on both sides based on the coupler 511 And, coupled to both lower portions of the support plate 510, through the second bolt hole 512, one end of the second bolt portion 530 is welded and fixed to the upper surface so that the second nut 531 is fastened. It is configured to include a protruding fixing plate 520.

That is, in a state in which the hair fitting 32 connected to the long arm 31 of the bracket 30 is in close contact with the support plate 510, the second bolt part 530 is passed through the second bolt hole 512 to the hair fitting ( After passing through the bolt hole 32a formed in 32) and fastening the second nut 531 to the second bolt part 530, the sleeve member 200 is supported in a fixed state to the head bracket 32.

Meanwhile, a washer 800 is provided between the support plate 510 and the second nut 531 so that the second nut 531 can be firmly tightened and fixed.

The fixed guide means 600 guides the rigid catenary line 20 to be smoothly fixed to the body plate 100 using the fixing means 400, such a fixed guide means 600 is the body plate ( The first magnet 610 provided on the lower surface of the surface contact portion 120 of 100) and the upper surface of the flange portion 23 protruding from both sides of the upper portion of the rigid catenary 20, the first magnet 610 It is configured to include a second magnet 620 attached to.

That is, the second magnet 610 provided on the flange portion 23 of the rigid catenary 20 is arbitrarily attached to the first magnet 610 provided on the lower surface of the face contact portion 120 of the body plate 100 After using the fixing means 400, it is possible to easily and simply fix the rigid catenary line 20.

As shown in FIG. 4, the rigid catenary line support clamp structure 10 of the present invention configured as described above is provided in a state in which the sleeve member 200 is fixedly supported by the bracket connection member 500 connected to the hair bracket 32 As the body plate 100 supporting the rigid catenary line 20 moves naturally in the vertical direction due to the vibration generated when the tram runs at high speed, it acts as a buffer to stably maintain the contact state between the catenary and the pantograph, and at the same time, Damage and wear can be prevented.

In addition, as the anti-separation nut 300 screwed to the screw fastening part 111 of the sleeve shaft 110 is fixed to the sleeve shaft 110 by the anti-separation means 600, the anti-separation nut 300 vibrates. And it is possible to prevent safety accidents in advance by preventing separation from the sleeve shaft 110 due to unscrewing due to impact.

In addition, by arbitrarily attaching the second magnet 610 provided on the flange portion 23 of the rigid catenary line 20 to the first magnet 610 provided on the lower surface of the face contact portion 120 of the body plate 100 , The rigid catenary line 20 can be easily and conveniently fixed to the main body plate 100 using the fixing means 400.

In addition, by inserting the insertion protrusion 421 protruding from the top surface of the pressing plate 420 into the groove 24 formed on the lower surface of the flange portion 23 of the rigid catenary line 20, the rigid catenary line 20 moves in the left and right directions. By preventing shaking, it is possible to suppress damage and abrasion of the rigid catenary wire 20 by vibration.

10: rigid catenary support clamp structure
20: rigid body line
21: electric wire 22: rigid body 23: flange part 24: groove
100: body plate
110: sleeve axis 111: screw fastening part 120: surface contact part
200: sleeve member
210: shaft through-hole 220: screw part
300: departure prevention nut
400: fixing means
410: first bolt hole 420: pressure plate 421: insertion protrusion
430: first bolt part 440: projection insertion space
500: bracket connection member
510: support plate 511: coupler 512: second bolt hole
520: fixed plate 530: second bolt part
600: fixed guide means
610: first magnet 620: second magnet
700: departure prevention means
710: pin insertion hole 720: pin through hole 730: fixing pin
800: buffer member
900: washer

Claims (7)

A sleeve shaft 110 protrudes upward in the center of the upper surface, and a screw fastening portion 111 is formed on the upper part of the sleeve shaft 110, and the flange portion 23 of the rigid catenary wire 20 is in close contact with the surface on both sides The main body plate 100 on which the surface contact portion 120 is formed;
a sleeve member 200 surrounding the sleeve shaft 110 so that the sleeve shaft 110 slides up and down;
A release prevention nut 300 that is screwed to the screw fastening part 111 of the sleeve shaft 110 to prevent the sleeve member 200 from being separated from the sleeve shaft 110;
Fixing means 400 for fixing the rigid catenary line 20 to the lower portion of the body plate 100;
A bracket connection member 500 screwed to the outside of the sleeve member 200 and coupled to the hair bracket 32 of the bracket 30; and
A fixing guide means 600 for guiding the rigid catenary line 20 to be smoothly fixed to the main body plate 100 using the fixing means 400; includes,
The fixing means 400,
A plurality of first bolt holes 410 formed in the surface contact portion 120 of the body plate 100,
A pressing plate 420 for pressing the lower end surface of the flange portion 23 protruding from both upper side surfaces of the rigid catenary line 20, and
A first bolt portion 430 having one end portion welded to both sides of the pressure plate 420 and the other end protruding upward, passing through the first bolt hole 410 and fastening the first nut 431 thereto. including,
A groove 24 is formed along the longitudinal direction on the lower end surface of the flange portion 23,
An insertion protrusion 421 is formed on the upper surface of the pressure plate 420 by being inserted into the groove 24 to prevent the rigid catenary 20 from shaking in the left and right directions, protruding upward,
The bracket connection member 500,
A coupling hole 511 is formed at the center so as to be screwed to the outer side of the sleeve member 200, and second bolt holes 512 pass through the second bolt part 530 on both sides based on the coupling hole 511. ) And the support plate 510 is formed,
It is coupled to both lower portions of the support plate 510, and one end of the second bolt part 530 is welded and fixed to the upper surface so that the second nut 531 is fastened through the second bolt hole 512. It includes a protruding fixing plate 520,
The fixed guide means 600,
A first magnet 610 provided on the lower surface of the surface contact portion 120 of the body plate 100,
Including the second magnet 620 provided on the upper end surface of the flange portion 23 protruding from both upper side surfaces of the rigid catenary line 20 and attached to the first magnet 610,
A rigid catenary support clamp structure characterized in that it improves the current collection performance by stably maintaining the contact state of the catenary and the pantograph, and at the same time suppresses damage and abrasion of the catenary.
According to claim 1,
The rigid catenary line support clamp structure, characterized in that the lower end of the sleeve shaft 110 is integrally fixed to the body plate 100 by welding.
According to claim 1,
It includes a separation preventing means 600 for preventing the separation preventing nut 300 screwed to the sleeve shaft 110 from being separated from the sleeve shaft 110 due to unscrewing caused by vibration,
The departure prevention means 600,
a pin insertion hole 610 formed on an outer surface of an upper end of the sleeve shaft 110;
A pin through hole 620 formed on an outer surface of the separation preventing nut 300; and
A fixing pin 630 that penetrates through the pin through hole 620 and is inserted into the pin insertion hole 610 to fix the separation preventing nut 300 to the sleeve shaft 110; Rigid catenary support clamp structure.
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