WO2023066043A1

WO2023066043A1 - Rigid catenary current collector, pantograph, and rail transit vehicle

Info

Publication number: WO2023066043A1
Application number: PCT/CN2022/124067
Authority: WO
Inventors: 许万涛; 武丛; 邓超月; 王长青; 谢立军
Original assignee: 中车青岛四方机车车辆股份有限公司
Priority date: 2021-10-19
Filing date: 2022-10-09
Publication date: 2023-04-27
Also published as: AR127383A1; CN113799612B; CN113799612A; FR3128166A1

Abstract

A rigid catenary current collector, a pantograph, and a rail transit vehicle, comprising a main sliding plate carbon strip, auxiliary sliding plates, springs, a bottom plate, a top plate and a bracket. A recess is formed at the middle of the bracket with respect to the two ends, and the top plate, the bottom plate and the main sliding plate carbon strip are sequentially arranged in the recess from bottom to top; the top plate and the middle of the bracket are elastically connected by means of the plurality of springs; protruding parts at the two ends of the bracket are slidably connected to the corresponding end parts of the main sliding plate carbon strip and serve as auxiliary sliding plates for current receiving; the bottom of the carbon strip is provided with a metal gas pipeline of an automatic pantograph dropping system. The present application achieves good current receiving performance along with the catenary, is particularly suitable for operation of an overhead rigid catenary, and satisfies a current receiving trend of the rigid catenary of an urban rail train.

Description

A rigid catenary current collector, pantograph and rail transit vehicle

This application claims the priority of the Chinese patent application submitted to the China Patent Office on October 19, 2021, with the application number 202111214294.4, and the title of the invention is "A Rigid Catenary Current Collector, Pantograph, and Rail Transit Vehicle". The entire contents are incorporated by reference in this application.

technical field

The application belongs to the technical field of rigid catenary current collection, and in particular relates to a rigid catenary current collector, a pantograph and a rail transit vehicle.

Background technique

The statements in this section merely provide background technical information relevant to this application and do not necessarily constitute prior art.

With the rapid development of the rail vehicle industry, the AC rigid catenary has a general trend of receiving current. The AC urban rail vehicle is different from the "flexible catenary + AC pantograph" of the EMU and the "rigid catenary + DC pantograph" of the subway. Design mode, most of which adopt the pantograph-catenary matching method of "rigid-flexible mixed catenary + AC pantograph", which needs to take into account the operating characteristics of rail vehicles; but the actual operation data of existing urban lines show that the existing catenary Especially the new line) has severe pantograph-catenary sparks and severe pantograph-catenary vibration.

Contents of the invention

In order to solve the above problems, this application proposes a rigid catenary current collector, a pantograph and a rail transit vehicle. This application has good current-collecting performance with the grid, especially suitable for overhead rigid catenary operation, and meets the rigid catenary of urban rail trains. flow trend.

According to some embodiments, the present application adopts the following technical solutions:

A rigid catenary current collector, comprising a main slide carbon strip, an auxiliary slide, a spring, a bottom plate, a top plate and a bracket, wherein:

The middle part of the bracket has a recess relative to the two ends, and the top plate, the bottom plate and the carbon strip of the main slide plate are sequentially arranged in the recess from bottom to top;

The top plate is elastically connected to the middle part of the bracket through a plurality of springs;

The protruding parts at both ends of the bracket are slidably connected to the ends corresponding to the carbon strips of the main skateboard, and serve as auxiliary skateboards to receive flow;

The bottom of the carbon strip is provided with a metal gas pipeline of an automatic bow-down system.

As an optional implementation manner, the bottom plate is a metal bottom plate.

As an optional implementation, the bottom plate and the top plate are fixed by bolts.

As an optional embodiment, the top plate, the spring and the bracket are connected by integral welding.

As an optional implementation, the bracket is a metal bracket.

As an optional embodiment, the end side of the carbon bar of the main slide is provided with an outwardly protruding slider, and the bottom of the slider is connected to the bottom plate, and the inner wall of the end of the bracket is provided with a The chute that matches the slider described above.

The longitudinal deviation of the carbon strips of the main slide is limited by the way of connecting the chute and the slider.

As an optional implementation, an ADD air hose is led out from the middle position of the carbon strip of the main skateboard, and a through hole is provided at a corresponding position of the bracket, and the ADD air hose passes downward through the through hole bracket.

As an optional implementation manner, the bottom of the bracket is in the shape of an airfoil. It has a good streamline shape, small aerodynamic resistance, and good performance of receiving current and following the net.

As an optional implementation, the carbon strips of the main slide are made of impregnated metal. The hardness is slightly lower than the catenary wire hardness.

A pantograph, the bow angle of which is provided with the above-mentioned rigid catenary current collector.

As an optional implementation, the two ends of the bracket are fixedly connected to the bow angle by bolts.

A rail transit vehicle, comprising the above-mentioned pantograph or the above-mentioned rigid catenary current collector.

Compared with the prior art, the beneficial effects of the present application are:

The new rigid catenary current collector provided by this application uses conductive springs to ensure the strength of the installation structure of the carbon strips, slow down pantograph-catenary vibration, and has good electrical conductivity to ensure reliable drainage from the catenary.

The new rigid catenary current collector provided by this application is slidingly connected between the carbon strips of the main skateboard and the auxiliary skateboard, which can suppress the front and rear deviation of the carbon strips of the main skateboard caused by hard points or foreign objects in the catenary, and also ensure that both The gap between them is much larger than the outer diameter of the cross-section of the catenary wire, and the gap decreases with the pressure of the catenary wire, which can ensure reliable frictional contact between the main and auxiliary slides of the catenary wire, and realize safe flow.

In the new rigid catenary current collector provided by this application, the hardness of the carbon strips on the main sliding plate is slightly lower than that of the catenary wires. On the basis of meeting the wear requirements of the pantograph and catenary, stable current flow between the pantograph and catenary is realized.

The new rigid catenary current collector provided by this application has a built-in ADD metal gas pipeline, and the current collector has the function of automatically triggering the ADD to lower the bow.

In order to make the above-mentioned purpose, features and advantages of the present application more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Figure 1 is a front view of a rigid catenary current collector of at least one embodiment of the present application;

Fig. 2 is a top view of a rigid catenary current collector of at least one embodiment of the present application;

Fig. 3 is a side view of a rigid catenary current collector of at least one embodiment of the present application;

Among them, 1. Main skateboard carbon strip, 2. Spring, 3. Slider, 4. Top plate, 5. Bottom plate, 6. ADD metal air pipe, 7. Bolt, 8. Bracket, 9. Bow angle, 10. ADD air pipe , 11, auxiliary skateboard.

In the figure: In order to show the position of each part, the mutual distance or size is exaggerated, and the schematic diagram is only for illustration.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the application clearly states otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprises" and/or "comprises" are used in this specification, they mean Indicate the presence of features, steps, operations, means, components and/or combinations thereof;

For the convenience of description, if the words "up", "down", "left" and "right" appear in this application, they only indicate that they are consistent with the directions of up, down, left and right in the drawings themselves, and do not limit the structure. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

If the terms "installation", "connection", "connection" and "fixation" appear in this application, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; , it can also be an electrical connection, it can be a direct connection, it can also be an indirect connection through an intermediary, it can be an internal connection between two components, or the interaction relationship between two components, for those of ordinary skill in the art, it can be based on The specific meanings of the above terms in this application should be understood in detail.

As introduced in the background technology, there are serious pantograph-catenary sparks and severe pantograph-catenary vibrations in the prior art. In order to solve the above technical problems, this application proposes a rigid catenary current collector, pantograph and rail transit vehicle.

Embodiment one

In a typical implementation of the present application, as shown in Figure 1, a rigid catenary current collector includes a carbon strip 1 on a main slide, an auxiliary slide, a spring 2, and a bracket 8, among which the main slide The bottom of the carbon strip 1 is provided with a metal bottom plate 5 , and the metal bottom plate 5 and the top plate 4 are fixed by bolts 7 . A plurality of springs 2 are arranged between the top plate 4 and the bracket 8 , one end of the springs 2 abuts against the top plate 4 , and the other end abuts against the bracket 8 .

The two ends of the bracket 8 protrude upwards and are slidably connected with the ends of the carbon strips 1 of the main slide to form an auxiliary slide.

In this embodiment, the spring 2 is welded together with the top plate 4 and the bottom bracket 8 and can be replaced as a whole.

In this embodiment, the springs 2 are evenly spaced along the extending direction of the bracket 8 to ensure uniform force.

In this embodiment, the carbon skateboard (that is, the carbon strip 1 of the main skateboard, hereinafter referred to as the carbon strip) is made of impregnated metal, has good electrical and mechanical wear performance, simple structural design, light weight, small resistance, and good performance of receiving current and following the grid. It is especially suitable for the operation of overhead rigid catenary, and meets the current trend of rigid catenary of urban rail trains.

Bracket 8 itself is conductive metal, and its two ends close to the carbon strip can be used as auxiliary sliding plate 11 to receive current, and at the same time, it is fixedly connected with bow angle 9 by bolt 7, and the part is polished.

The middle part of the carbon bar leads out the ADD air pipe 10, and passes through the bracket 8 holes downwards to be connected to the vehicle side. In the present embodiment, the ADD air pipe 10 is a flexible pipe, and the flexible pipe is made of polytetrafluoroethylene.

The rigid catenary current collector provided in this embodiment adopts a streamlined design as a whole, the contact height is gentle, and the resistance to flow is small.

As shown in Figure 2, protruding parts are provided on both ends of the carbon strip, that is, the slider 3, and the slider 3 is embedded in the chute provided in the auxiliary slide plate to form a vertical limit structure, which can suppress the hard points or foreign objects caused by the catenary. The resulting skateboard drifts back and forth.

In this embodiment, the slider 3 is made of metal, and is connected with the bottom plate 5 at the bottom of the carbon strip.

The bottom of bracket 8 adopts airfoil design, which has good streamline shape, small aerodynamic resistance, and good performance of receiving current and following the net.

As shown in Figure 3, the carbon strip is near the bottom, with a built-in ADD metal gas pipeline 6, and the current collector has the function of ADD automatically triggering the lowering of the bow.

Of course, in other implementations, the materials, shapes and sizes of the above components can be adjusted or changed according to specific conditions.

Embodiment two:

A pantograph, the bow angle 9 is provided with the rigid catenary collector device of the first embodiment, and the two ends of the bracket 8 are fixedly connected to the bow angle 9 by bolts 7 .

Embodiment three:

A rail transit vehicle, comprising the pantograph of Embodiment 2 or the rigid catenary current collector of Embodiment 1.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

A rigid catenary current collector is characterized in that it includes a main slide carbon strip, an auxiliary slide, a spring, a bottom plate, a top plate and a bracket, wherein:

The middle part of the bracket has a recess relative to the two ends, and the top plate, the bottom plate and the carbon strip of the main slide are arranged in the recess in sequence from bottom to top;

The top plate is elastically connected to the middle part of the bracket through a plurality of springs;

The protruding parts at both ends of the bracket are slidably connected to the ends corresponding to the carbon strips of the main skateboard, and serve as auxiliary skateboards to receive flow;

The bottom of the carbon strip is provided with a metal gas pipeline of an automatic bow-down system.
A rigid catenary current collector as claimed in claim 1, wherein the bottom plate is a metal bottom plate.
A rigid catenary current collector according to claim 1, characterized in that: the bottom plate and the top plate are fixed by bolts.
A rigid catenary current collector as claimed in claim 1, characterized in that: the top plate, the spring and the bracket are integrally welded and connected.
A rigid catenary current collector as claimed in claim 1 or 4, characterized in that: said bracket is a metal bracket;

Or, the bottom of the bracket is in the shape of an airfoil.
A kind of rigid catenary current collector according to claim 1, characterized in that: an outwardly protruding slider is provided on the side of the end of the carbon strip of the main slider, and the bottom of the slider is connected to the bottom plate , the end inner wall of the bracket is provided with a chute matching with the slider;

Or, the carbon strip of the main skateboard is made of impregnated metal.
A kind of rigid catenary current collector as claimed in claim 1, characterized in that: an ADD air hose is drawn from the middle position of the carbon strip of the main skateboard, and a through hole is provided at the corresponding position of the bracket, and the ADD the air hose down through the bracket through the through hole.
A pantograph, characterized in that: the rigid catenary current collector according to any one of claims 1-7 is arranged on its bow angle.
A pantograph according to claim 8, characterized in that: the two ends of the bracket are fixedly connected to the bow angle by bolts.
A rail transit vehicle, characterized by comprising the pantograph according to claim 8 or 9 or the rigid catenary current collector according to any one of claims 1-7.