CN110797673A - Grounding device and grounding system of railway vehicle - Google Patents

Abstract

The invention discloses a grounding device and a grounding system of a rail vehicle. The grounding device comprises a mounting frame and a conductive sheet. The mounting frame includes a first bracket and a second bracket which are connected to each other and form an angle with each other. The first bracket is suitable for connecting with the bogie of the rail vehicle. For connection, the conductive sheet includes an installation part and a contact part which are connected to each other, the installation part is connected with the second bracket, and the contact part is suitable for abutting with the ground rail on the track beam. The grounding device for a rail vehicle according to the embodiment of the present invention simplifies the structure of the grounding device and reduces the volume of the grounding device, so that the grounding device is not easy to interfere with surrounding objects during the operation of the rail vehicle, and the grounding device can be reduced. The contact area with the grounding rail can reduce the wear of the conductive sheet and prolong the service life of the grounding device.

Description

Grounding device and grounding system of rail vehicle

technical field

The invention relates to the field of rail transportation, in particular to a grounding device and a grounding system of a rail vehicle.

Background technique

At present, the common grounding method of rail vehicles is to use grounding shoes and grounding rails. After or when the vehicle has a leakage fault, the electric charge accumulated on the vehicle is introduced into the ground rail for release.

The disadvantage of this solution is that the structure of the grounding shoe is complex, the grounding rail has many parts, and there are related problems such as the wear of the impact shoe and the carbon slide plate in the actual operation process, especially when the installation space is limited, it is difficult to arrange, and the grounding shoe is easy to The surrounding parts interfere.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a grounding device for a rail vehicle, which is simple in structure, small in size, not easy to interfere with objects in the line, and has little wear and a long service cycle.

The present invention also provides a grounding system for a rail vehicle having the above grounding device.

A grounding device for a rail vehicle according to an embodiment of the first aspect of the present invention includes: a mounting bracket, the mounting bracket includes a first bracket and a second bracket that are connected to each other and form an angle with each other, the first bracket is suitable for connecting with the The bogie of the rail vehicle is connected; the conductive sheet is in the shape of a sheet, the conductive sheet is suitable for being connected with the body of the rail vehicle or the bogie, and the conductive sheet comprises a mounting portion connected to each other and a a contact part, the mounting part is connected with the second bracket, and the contact part is suitable for abutting with the ground rail on the track beam.

According to the grounding device of the rail vehicle according to the embodiment of the present invention, by setting the grounding device to a structure including a mounting frame and a conductive sheet, the structure of the grounding device is simplified and the volume of the grounding device is reduced, so that the rail vehicle is in the process of running. , the grounding device is not easy to interfere with the surrounding objects, because the grounding device is in contact with the grounding rail through the conductive sheet, which reduces the contact area between the grounding device and the grounding rail, thereby reducing the wear of the conductive sheet and prolonging the service life of the grounding device.

According to some embodiments of the present invention, the included angle between the first bracket and the second bracket is 90 degrees.

According to some embodiments of the present invention, the mounting frame is a metal piece, and the grounding device includes: a connecting cable, one end of the connecting cable is connected to the mounting frame and the other end is connected to the vehicle body or the bogie connected.

Optionally, one end of the connection cable has a connection terminal, the connection terminal is connected to the mounting frame, and the connection terminal is in the shape of a flat plate.

According to some embodiments of the present invention, the conductive sheet has elastic deformability.

According to some embodiments of the present invention, the included angle between the conductive sheet and the contact surface of the ground rail is α, and the α satisfies: 60°≤α≤90°.

Optionally, the contact portion is formed in a trapezoid shape, and in the width direction of the conductive sheet, a sidewall surface of the contact portion abutting against the ground rail extends obliquely.

According to some embodiments of the present invention, the conductive sheet is in the shape of an elongated sheet.

According to some embodiments of the present invention, the conductive sheet is a carbon fiber piece or a spring steel piece.

According to some embodiments of the present invention, the width direction of the conductive sheet is the same as the width direction of the contact surface of the ground rail.

According to some embodiments of the present invention, the grounding device includes: a clamping member, the clamping member is provided on the second bracket, a clamping space is defined in the clamping member, and the mounting portion clamps in the holding space.

Further, the clamping member includes two clamping pieces arranged oppositely and spaced apart, the clamping space is defined between the two clamping pieces, and each of the clamping pieces is adjacent to the contact portion One end of the fin is formed as a bent segment, and in the direction from the mounting portion to the contact portion, the bent segment extends obliquely toward the direction away from the center line of the conductive sheet.

Optionally, the bending section is formed in an arc shape.

According to some optional embodiments of the present invention, the grounding device includes: a fastener passing through the clip, the conductive sheet and the second bracket to attach the clip and the conductive sheet is fixed on the second bracket.

A grounding system for a rail vehicle according to an embodiment of the second aspect of the present invention includes: the grounding device for a rail vehicle according to the embodiment of the first aspect of the present invention, the mounting frame is connected to the bogie of the rail vehicle, and the conductive The sheet is connected with the body of the rail vehicle or the bogie; the ground rail is arranged on the rail beam, and the contact portion is suitable for abutting with the ground rail.

According to the grounding system of the rail vehicle according to the embodiment of the present invention, by setting the above-mentioned grounding device, the grounding device is less likely to interfere with surrounding objects during the operation of the rail vehicle, the service period of the grounding device can be prolonged, and the safety of the rail vehicle can be ensured at the same time. reliable grounding,

According to some embodiments of the present invention, the ground rail includes a main body and connecting portions provided at both ends in the length direction of the main body, the connecting portions are connected to the rail beam, and the main body is spaced from the rail beam .

Optionally, the connecting portion includes a first connecting section and a second connecting section that are connected to each other, one end of the first connecting section is connected to the main body, and the other end of the first connecting section faces the rail beam extending, one end of the second connecting segment is connected with the other end of the first connecting segment, and the other end of the second connecting segment is connected with the track beam.

Optionally, the main body is arc-shaped and protrudes in a direction away from the track beam.

According to some embodiments of the present invention, the grounding rail is provided on the side of the rail beam, and the ground rail extends along the extending direction of the rail beam.

According to some embodiments of the present invention, the track beams include two opposite and spaced apart, the ground rails are disposed between the two track beams and are respectively connected with the two track beams, the ground rails The extension direction of the track beam is perpendicular to the extension direction of the track beam.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a front view of a grounding system for a rail vehicle according to an embodiment of the present invention;

2 is a partial perspective structural view of a grounding system of a rail vehicle according to an embodiment of the present invention;

Fig. 3 is the enlarged view of A place in Fig. 2;

Fig. 4 is the enlarged view of B place in Fig. 2;

5 is a schematic diagram of a ground rail of a rail vehicle according to an embodiment of the present invention;

6 is a front view of a grounding system for a rail vehicle according to another embodiment of the present invention;

7 is a perspective structural view of a grounding system of a rail vehicle according to another embodiment of the present invention;

8 is a front view of a ground rail of a rail vehicle according to another embodiment of the present invention;

9 is a top view of a ground rail of a rail vehicle according to another embodiment of the present invention;

FIG. 10 is a schematic diagram of the cooperation between the conductive sheet and the clamping member of the grounding device according to an embodiment of the present invention;

Figure 11 is an enlarged view at C in Figure 10;

FIG. 12 is a schematic diagram of the cooperation between a conductive sheet and a ground rail of a grounding system according to an embodiment of the present invention.

Reference number:

grounding system 100;

Grounding device 1; mounting frame 11; first bracket 111; first mounting hole 1111; second bracket 112; conductive sheet 12; mounting portion 121; contact portion 122; Bending section 1311; second mounting hole 132; third mounting hole 133; fourth mounting hole 134; fastener 14; connecting cable 15; connecting terminal 151;

The ground rail 2; the main body 21; the contact surface 211; the connection part 22; the first connection section 221; the second connection section 222;

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

A grounding device 1 for a rail vehicle according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 12 .

As shown in FIGS. 1-12 , a grounding device 1 for a rail vehicle according to an embodiment of the first aspect of the present invention includes: a mounting frame 11 and a conductive sheet 12 .

Specifically, the mounting bracket 11 includes a first bracket 111 and a second bracket 112 that are connected to each other and form an angle with each other. The first bracket 111 is suitable for connecting with a bogie of a rail vehicle. For example, the first bracket 111 can be fixed on the steering wheel by bolts. on the shelf. Optionally, the mounting bracket 11 may be a metal piece, for example, the mounting bracket 11 may be a stainless steel piece. Thus, the structural strength of the mounting bracket 11 can be ensured, and the mounting bracket 11 can be provided with corrosion resistance.

The conductive sheet 12 is in the shape of a sheet, and the conductive sheet 12 is suitable for connecting with the body or bogie of the rail vehicle (the connection between the conductive sheet 12 and the body or the bogie of the rail vehicle is a conductive connection), for example, the conductive sheet 12 can be connected by The cable 15 is electrically connected to the vehicle body or the bogie. The mounting portion 121 of the conductive sheet 12 is connected to the second bracket 112 , and the contact portion 122 of the conductive sheet 12 is suitable for abutting with the ground rail 2 on the track beam.

Accordingly, when the grounding device 1 is used in a rail vehicle, the conductive sheet 12 of the grounding device 1 is in contact with the ground rail 2, and the conductive sheet 12 of the grounding device 1 is connected to the vehicle body or the bogie. During the operation of the rail vehicle, due to the electric charge generated after the vehicle body runs for a certain distance or the vehicle body has a leakage fault or the vehicle body is struck by lightning, the electric charge accumulated on the vehicle body can be introduced into the ground rail 2 through the conductive sheet 12 for release, thereby It can improve the safety of rail vehicles and ensure the safety of passengers. It should be noted that when the conductive sheet 12 is connected to the vehicle body, the charges accumulated on the vehicle body can be directly introduced into the ground rail 2 through the conductive sheet 12 for release; when the conductive sheet 12 is connected to the bogie, the accumulated charges on the vehicle body It can be introduced into the conductive sheet 12 through the bogie, and then introduced into the ground rail 2 through the conductive sheet 12 for release.

Because the present invention sets the grounding device 1 into a structure including the mounting frame 11 and the conductive sheet 12, the structure of the grounding device 1 is simplified, the manufacturing cost is reduced, and the volume of the grounding device 1 is reduced, and the grounding device 1 is on the bogie. The required installation space is also small, which saves the installation space, can adapt to the bogie structure with small space, facilitates the installation and maintenance of the grounding device 1, and the layout of the grounding device 1 on the bogie is also simplified. .

Since the grounding device 1 has a small volume, the grounding device 1 is not easy to interfere with the surrounding objects during the operation of the rail vehicle, which greatly reduces the probability of the grounding device 1 colliding with objects arranged in the running line of the rail vehicle. , especially when the vehicle rolls on the road section with small curvature, the grounding device 1 is not easy to interfere with the objects arranged in the line.

In addition, since the grounding device 1 is in contact with the grounding rail 2 through the conductive sheet 12 , the contact area between the grounding device 1 and the grounding rail 2 is reduced, thereby reducing the wear of the conductive sheet 12 and prolonging the service life of the grounding device 1 .

Optionally, the conductive sheet 12 has elastic deformation ability, which can ensure the close contact between the conductive sheet 12 and the grounding rail 2, ensure the grounding performance of the grounding device 1, and at the same time can reduce or avoid the impact of the grounding device 1 during the operation of the rail vehicle. The problem.

After the grounding device 1 is installed on the bogie of the rail vehicle, the contact portion 122 of the conductive sheet 12 is made to abut the grounding rail 2 on the track beam. In order to ensure that the conductive sheet 12 is in close contact with the grounding rail 2, the conductive sheet 12 Under the co-extrusion of the mounting frame 11 and the ground rail 2, elastic bending deformation occurs, so that the contact portion 122 of the conductive sheet 12 can be in close contact with the contact surface 211 of the ground rail 2, and the contact between the conductive sheet 12 and the ground rail 2 is maintained. Good conductive contact. In addition, due to the elastic bending deformation of the conductive sheet 12, the contact portion 122 of the conductive sheet 12 is bent, and the contact portion 122 is in contact with the contact surface 211 of the ground rail 2 through bending, which can increase the contact area and ensure the conductive sheet 12 and the ground rail 2. reliable contact. For example, when the rail vehicle is in a station or traveling, the conductive sheet 12 can be in good conductive contact with the ground rail 2 through the bending deformation of the conductive sheet 12 .

Optionally, the conductive sheet 12 may be a carbon fiber piece or a spring steel piece. Therefore, the conductive sheet 12 can have good wear resistance and good elastic deformation ability, and at the same time, the conductive sheet 12 can have sufficient strength.

For example, when the conductive sheet 12 is made of carbon fiber, the conductive sheet 12 can be made to have good flexibility, and the conductive sheet 12 will not be scratched or scratched during the process of contacting the contact surface 211 of the ground rail 2 of the rail vehicle. The contact surface 211 of the rail 2. Moreover, due to the extremely high bending resistance of the carbon fiber piece, the conductive sheet 12 can still be restored to its original shape after a large bending deformation, and its good electrical and mechanical properties make the structure of the grounding device 1 further simplified.

Further, the conductive sheet 12 can be made of high-conductivity carbon fiber material, so that the electrical conductivity of the conductive sheet 12 is 30 to 100 times higher than that of the common carbon fiber material, so that the current carrying capacity of the grounding device 1 can reach the transient state during lightning strikes. Large current, so it has good lightning protection function, and further ensures the safety of passengers.

According to the grounding device 1 of the rail vehicle according to the embodiment of the present invention, by setting the grounding device 1 to a structure including the mounting frame 11 and the conductive sheet 12 , the structure of the grounding device 1 is simplified, the volume of the grounding device 1 is reduced, and the track During the operation of the vehicle, the grounding device 1 is not easy to interfere with the surrounding objects. Since the grounding device 1 is in contact with the grounding rail 2 through the conductive sheet 12, the contact area between the grounding device 1 and the grounding rail 2 is reduced, so that the conductive sheet can be reduced. 12 wear, prolong the service life of the grounding device 1.

According to some embodiments of the present invention, referring to FIGS. 1 , 2 , 6 and 7 , the included angle between the first bracket 111 and the second bracket 112 is 90 degrees. Thereby, the structure of the mounting bracket 11 is simplified and the structure thereof has high rigidity.

According to some embodiments of the present invention, referring to FIG. 1 and FIG. 2 , the mounting frame 11 is a metal piece, so that the mounting frame 11 has good electrical conductivity, and the grounding device 1 includes: a connecting cable 15 , one end of the connecting cable 15 is connected to the mounting frame 15 . The frame 11 is connected to the frame 11 and the other end is connected to the vehicle body or the bogie. One end of the grounding cable 24 can be connected to the first bracket 111 , and one end of the grounding cable 24 can also be connected to the second bracket 112 . Therefore, through the above arrangement, the conductive connection between the connection cable 15 and the conductive sheet 12 is facilitated.

Optionally, referring to FIG. 3 , one end of the connecting cable 15 has a connecting terminal 151 , the connecting terminal 151 is connected to the mounting frame 11 , and the connecting terminal 151 is in the shape of a flat plate. Thereby, the contact area between the connection cable 15 and the mounting bracket 11 can be increased, and the reliability of the conductive contact between the connection cable 15 and the mounting bracket 11 can be improved.

According to some embodiments of the present invention, referring to FIG. 1 , FIG. 2 , FIG. 6 , FIG. 7 and FIG. 12 , the included angle between the conductive sheet 12 and the contact surface 211 of the ground rail 2 is α, and the α satisfies: 60° ≤α≤90°. Therefore, at α=90° (refer to FIG. 1 , FIG. 2 , FIG. 6 , and FIG. 7 ), the conductive sheet 12 and the contact surface 211 of the ground rail 2 can be in vertical contact, so that the conductive sheet 12 and the ground rail 2 are in vertical contact. The contact between the contact surfaces 211 is more stable; when 60°≤α<90° (refer to FIG. 12 ), the conductive sheet 12 and the contact surface 211 of the ground rail 2 are in inclined contact, and the conductive sheet can be appropriately increased The contact area between 12 and the contact surface 211 of the ground rail 2 further ensures reliable contact between the conductive sheet 12 and the ground rail 2 .

Optionally, referring to FIG. 12 , the contact portion 122 is formed in a trapezoid shape, and in the width direction of the conductive sheet 12 (refer to the direction f in FIG. 12 ), the side wall surface 1221 of the contact portion 122 abutting against the ground rail 2 extends obliquely, That is, there is an included angle between the side wall surface 1221 of the contact portion 122 abutting against the ground rail 2 and the width direction of the conductive sheet 12 . Therefore, it is convenient to realize inclined contact between the conductive sheet 12 and the contact surface 211 of the ground rail 2 , and the area of the side wall surface 1221 of the contact portion 122 in contact with the ground rail 2 can be increased.

According to some embodiments of the present invention, referring to FIGS. 1 , 2 , 6 and 7 , the conductive sheet 12 is in the shape of an elongated sheet. Therefore, the conductive sheet 12 can withstand greater deflection and is less likely to be broken.

According to some embodiments of the present invention, referring to FIGS. 1 , 2 and 7 , the width direction of the conductive sheet 12 and the width direction of the contact surface 211 of the ground rail 2 (refer to the e direction in FIGS. 1 , 2 and 7 ) same. Thus, stable and reliable contact between the conductive sheet 12 and the ground rail 2 can be ensured.

According to some embodiments of the present invention, the contact portion 122 may include a first portion and a second portion that are perpendicular to each other, wherein the first portion is connected to the mounting portion 121 and is consistent with the extending direction of the mounting portion 121 , and the second portion is suitable for connecting with the ground rail 2 The contact surface 211 of . Thus, the contact area between the conductive sheet 122 and the ground rail 2 can be appropriately increased. It should be noted that, compared with the entire conductive sheet 12, the volume ratio of the second part of the contact portion 122 is very small, so that the contact area between the conductive sheet 12 and the grounding rail 2 can be appropriately increased, and at the same time, the conventional grounding shoe can be avoided due to the The wear and tear caused by the excessive contact area of the carbon slide plate is a serious problem. Optionally, the contact portion 122 may be formed into an L-shape or a T-shape, for example, the free end of the contact portion 122 may be bent to form an L-shape.

According to some embodiments of the present invention, as shown in FIGS. 1-3 , 6 , 7 , 10 and 11 , the grounding device 1 includes: a clamping member 13 , the clamping member 13 is provided on the second bracket 112 and clamps A clamping space is defined in the member 13, and the mounting portion 121 of the conductive sheet 12 is clamped in the clamping space. Therefore, the conductive sheet 12 can be easily fixed on the second bracket 112 through the provided clamping member 13 . Optionally, the clamping member 13 may be a metal member, for example, the clamping member 13 is a stainless steel member.

For example, when the clamping member 13 is a metal member, the above-mentioned connecting cable 15 can be connected to the clamping member 13. Since the contact between the clamping member 13 and the conductive sheet 12 achieves a conductive connection, the connecting cable 15 and the clamping member 13 are connected to each other. The connection realizes the conductive connection, so that the conductive connection between the conductive sheet 12 and the connection cable 15 can be realized. For another example, when the clamping member 13 is a metal member, the above-mentioned connecting cable 15 can be connected to the clamping member 13, and the conductive sheet 12 can be connected to the connecting cable by passing the screw through the connecting cable 15, the clamping member 13 and the conductive sheet 12. Conductive connection between 15. For another example, when the clamping member 13 is a non-metallic piece, the connection cable 15 can be connected to the clamping member 13 through the connection cable 15 , the clamping member 13 and the conductive sheet 12 through the screw, and the connection between the screw and the conductive sheet 12 is passed through the screw. The contact and the contact of the connecting cable 15 can realize the conductive connection between the conductive sheet 12 and the connecting cable 15 .

Further, referring to FIG. 3 , FIG. 7 , FIG. 10 and FIG. 11 , the clamping member 13 includes two clamping pieces 131 arranged opposite and spaced apart, and a clamping space is defined between the two clamping pieces 131 . One end of the holding piece 131 adjacent to the contact portion 122 of the conductive sheet 12 is formed as a bent segment 1311 , and the bent segment 1311 is directed away from the mounting portion 121 of the conductive sheet 12 to the contact portion 122 of the conductive sheet 12 in the direction. The direction of the center line of the conductive sheet 12 extends obliquely. Therefore, the assembly between the conductive sheet 12 and the clamping member 13 is facilitated, the clamping member 13 is convenient for clamping the mounting portion 121 of the conductive sheet 12, and by placing the contact portion 122 of the clamping sheet 131 adjacent to the conductive sheet 12 One end is formed as the above-mentioned bending section 1311, so that the conductive sheet 12 can have a good transition during the bending process, so that the contact portion 122 of the conductive sheet 12 can be partially guided and supported by the above-mentioned bending section 1311 when it is bent. The conductive sheet 12 is not easily broken.

Optionally, referring to FIG. 3 and FIG. 11 , the above-mentioned bending section 1311 may be formed in an arc shape. Therefore, when the conductive sheet 12 is bent, the guiding effect of the arc-shaped bending section 1311 can occur at the root of the contact portion 122 of the conductive sheet 12 (that is, the portion of the contact portion 122 of the conductive sheet 12 adjacent to the mounting portion 121 ) The arc-shaped bending deformation reduces stress concentration, thereby further making the conductive sheet 12 less likely to be broken and prolonging the service life of the conductive sheet 12 .

According to some optional embodiments of the present invention, referring to FIGS. 1-3 , 6 and 7 , the grounding device 1 includes: a fastener 14 passing through the clamping member 13 , the conductive sheet 12 and the second The bracket 112 is used to fix the clamping member 13 and the conductive sheet 12 on the second bracket 112 . In this way, the conductive sheet 12 can be reliably and firmly fixed on the mounting frame 11 , and the replacement and maintenance of the conductive sheet 12 is facilitated.

1 to 12 , a grounding system 100 for a rail vehicle according to an embodiment of the second aspect of the present invention includes: a grounding device 1 and a grounding rail 2 for a rail vehicle according to the embodiment of the first aspect of the present invention, the mounting frame 11 and the grounding rail 2 . The bogie of the rail vehicle is connected, the conductive sheet 12 is connected to the body or bogie of the rail vehicle, the ground rail 2 is arranged on the rail beam, and the contact portion 122 of the conductive sheet 12 is suitable for abutting with the ground rail 2 .

According to the grounding system 100 of the rail vehicle according to the embodiment of the present invention, by setting the grounding device 1, the grounding device 1 is not easy to interfere with the surrounding objects during the operation of the rail vehicle, and the service life of the grounding device 1 can be prolonged. To ensure reliable grounding of rail vehicles,

According to some embodiments of the present invention, referring to FIGS. 2 and 4 to 9 , the ground rail 2 includes a main body 21 and connecting parts 22 arranged at both ends of the main body 21 in the length direction. The connecting parts 22 are connected to the rail beam, and the main body 21 is connected to The track beams are spaced apart. As a result, the installation structure of the ground rail 2 can be simplified, the mounting bracket used by the traditional ground rail is omitted, the installation of the ground rail 2 is more convenient and the cost is reduced, and at the same time, the contact surface 211 of the ground rail 2 and the rail beam can be ensured A sufficient distance can be maintained between them, so that the interference between the grounding device 1 in contact with the grounding rail 2 and the rail beam can be further reduced. It should be explained here that the side of the main body 21 away from the rail beam is the contact surface 211 of the ground rail 2 .

Optionally, referring to FIGS. 4 , 6-8 , the connecting portion 22 includes a first connecting section 221 and a second connecting section 222 that are connected to each other, one end of the first connecting section 221 is connected to the main body 21 , and the first connecting section 221 The other end of the second connecting segment 222 is connected to the other end of the first connecting segment 221, and the other end of the second connecting segment 222 is connected to the track beam. Therefore, the main body 21 of the ground rail 2 can be conveniently separated from the rail beam by the bending structure formed by the connecting portion 22 to maintain a sufficient distance.

Optionally, the main body 21 is arc-shaped and protrudes in a direction away from the track beam. Thus, the main body 21 can be easily spaced from the track beam, so that a sufficient distance is maintained between the contact surface 211 of the ground rail 2 and the track beam. In addition, since the contact surface 211 is formed as an arc surface at this time, when the conductive sheet 12 of the grounding device 1 is in contact with the contact surface 211 of the grounding rail 2, the conductive sheet 12 can be easily guided to contact the contacting surface 211 of the grounding rail 2. Prevent vertical impact between the conductive sheet 12 and the ground rail 2 .

According to some embodiments of the present invention, referring to FIG. 1 , FIG. 2 and FIG. 5 , the ground rail 2 is provided on the side of the rail beam, and the ground rail 2 extends along the extension direction of the rail beam. Therefore, by arranging the grounding rail 2 on the side of the rail beam, the grounding device 1 and the grounding rail 2 can still maintain good electrical contact when the vehicle body is fully loaded, unloaded or under certain extreme conditions.

According to some embodiments of the present invention, referring to FIGS. 6-9 , the track beams include two opposite and spaced apart, and the ground rail 2 is provided between the two track beams and is connected to the two track beams respectively. The extension direction is perpendicular to the extension direction of the track beam. Therefore, the grounding rail 2 is arranged between the two rail beams, so that the grounding rail 2 has a large arrangement space, so that the grounding rail 2 can have a larger width, and at the same time, the conductive sheet 12 of the grounding device 1 has a larger space. , so that the current carrying capacity of the grounding system 100 can be further increased. Moreover, since the grounding rail 2 is located below the vehicle body, the risk of interference between the grounding device 1 and surrounding components in the line can be further avoided or reduced.

The grounding device 1 and the grounding system 100 of a rail vehicle according to various embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 11 .

Example one,

1-5 , in this embodiment, the grounding system 100 of a rail vehicle includes the above-mentioned grounding device 1 and grounding rail 2 . The grounding device 1 is installed on the bogie of the rail vehicle, and the grounding rail 2 is installed on the side of the track beam and extends along the extension direction of the track beam. The grounding device 1 is connected to the vehicle body or the bogie through the connecting cable 15 , and the conductive sheet 12 of the grounding device 1 is in contact with the contact surface 211 of the grounding rail 2 . Therefore, during the operation of the rail vehicle, due to the electric charge generated after the vehicle body runs for a certain distance or the vehicle body has a leakage fault or the vehicle body is struck by lightning, the electric charge accumulated on the vehicle body can be introduced into the ground rail 2 through the conductive sheet 12. release, so as to improve the safety of rail vehicles and ensure the safety of passengers.

Specifically, the grounding device 1 includes a mounting frame 11 , a conductive sheet 12 , a clamping member 13 , a fastener 14 and a connecting cable 15 . The mounting bracket 11 is made of stainless steel, and the mounting bracket 11 includes the first bracket 111 and the second bracket 112 mentioned above. The included angle between them is 90 degrees, and the mounting bracket 11 is L-shaped as a whole. Two first mounting holes 1111 are formed on the first bracket 111 , and two bolts pass through the two first mounting holes 1111 to connect with the bogie, so that the mounting frame 11 can be fixed on the bogie.

The conductive sheet 12 is in the shape of an elongated sheet, the conductive sheet 12 is a carbon fiber piece, the conductive sheet 12 is connected to the second bracket 112 and is arranged perpendicular to the second bracket 112 . The clamping member 13 includes the above-mentioned two clamping pieces 131 , the clamping pieces 131 are stainless steel sheets, and the mounting portion 121 of the conductive sheet 12 is clamped in the clamping space defined by the two clamping pieces 131 . The clamping member 13 is formed with a second mounting hole 132 , a third mounting hole 133 and a fourth mounting hole 134 spaced along the length direction of the clamping member 13 , and the fastener 14 passes through the connecting cable 15 and the first mounting hole 1111 , the conductive sheet 12 and the second bracket 112 , the fastener 14 passes through the second installation hole 132 , the conductive sheet 12 and the second bracket 112 , and the bolt passes through the third installation hole 133 and the conductive sheet 12 . In this way, the conductive sheet 12 can be fixed on the mounting frame 11 , the conductive connection between the connecting cable 15 and the conductive sheet 12 can be achieved, and the conductive sheet 12 can be secured and clamped in the clamping member 13 .

One end of each clamping piece 131 adjacent to the contact portion 122 of the conductive sheet 12 is formed as a bent segment 1311 , and the bent segment 1311 faces the direction from the mounting portion 121 of the conductive sheet 12 to the contact portion 122 of the conductive sheet 12 . The direction away from the center line of the conductive sheet 12 extends obliquely, and the bending section 1311 is formed in an arc shape. The width direction of the conductive sheet 12 is the same as the width direction of the contact surface 211 of the ground rail 2 . The contact portion 122 of the conductive sheet 12 is in contact with the contact surface 211 of the grounding rail 2 , and the conductive sheet 12 is in a bent state under the co-extrusion of the mounting frame 11 and the grounding rail 2 , thereby ensuring the tightness of the conductive sheet 12 and the grounding rail 2 touch. In addition, when the conductive sheet 12 is bent, the root of the contact portion 122 of the conductive sheet 12 can undergo arc bending deformation under the guiding action of the arc-shaped bending section 1311, so as to reduce the stress concentration, so that the conductive sheet 12 is not easily broken. The service life of the conductive sheet 12 is prolonged.

The ground rail 2 includes a main body 21 and a connecting portion 22 connecting both ends of the main body 21 in the longitudinal direction. The connecting portion 22 includes the above-mentioned first connecting section 221 and second connecting section 222. The first connecting section 221 extends parallel to the rail beam. It extends obliquely in the direction of the track beam, the second connecting section 222 is parallel to the extending direction of the track beam, and the included angle between the first connecting section 221 and the second connecting section 222 is an obtuse angle, so that the connecting portion 22 is bent Folding structure, so that the main body 21 of the ground rail 2 is spaced apart from the rail beam, so that there is a sufficient distance between the contact surface 211 of the ground rail 2 and the rail beam. Further, the main body 21 is arc-shaped and protrudes toward the direction away from the track beam, which can better separate the main body 21 from the track beam, and can easily guide the conductive sheet 12 to contact the contact surface 211 of the ground rail 2, preventing the There is a vertical collision between the conductive sheet 12 and the ground rail 2 .

The main body 21 of the ground rail 2 and the ground rail 2 can be connected by long screws, so that the main body 21 and the rail beam are spaced apart, and at the same time, the ground rail 2 can be reliably connected to the rail beam. The connecting portion 22 of the grounding rail 2 is provided with a mounting post 23 for installing and fixing the grounding cable 24. The mounting post 23 can be welded on the connecting portion 22 of the grounding rail 2. The mounting post 23 is a metal piece.

The grounding system 100 of this embodiment can be used for platform grounding, and can also be used for full line grounding. The grounding device 1 is installed on the bogie between the two marshalling cars according to the structural dimensions of the two marshalling cars of the rail vehicle and considering the influence of the rail length of the grounding rail 2 . For example, the interval between the two grounding devices 1 can be 3800mm, then the grounding rails 2 can be arranged at an interval of 3780mm, and the adjacent grounding rails 2 are connected by copper wires.

The grounding system 100 of the rail vehicle in this embodiment simplifies the structure of the grounding device 1 and reduces the volume of the grounding device 1, so that the grounding device 1 is not easy to interfere with surrounding objects during the operation of the rail vehicle, which can ensure The close contact between the conductive sheet 12 and the grounding rail 2 ensures the grounding performance of the grounding device 1 and reduces the contact surface 211 area between the grounding device 1 and the grounding rail 2, thereby reducing the wear of the conductive sheet 12 and prolonging the service life of the grounding device 1. . In addition, the installation structure of the ground rail 2 can be simplified, and the mounting frame 11 used by the traditional ground rail 2 is omitted, which makes the installation of the ground rail 2 more convenient and reduces the cost, and at the same time, it can ensure that the contact surface 211 of the ground rail 2 is connected to the rail. Sufficient distance can be maintained between the beams, so that the interference between the grounding device 1 in contact with the grounding rail 2 and the rail beam can be further reduced. In addition, by arranging the grounding rail 2 on the side of the rail beam, the grounding device 1 and the grounding rail 2 can still maintain good electrical contact when the vehicle body is fully loaded, unloaded or under certain extreme conditions.

Example two,

Referring to FIGS. 6-11 , the main difference between the grounding system 100 in this embodiment and the grounding system 100 in the above-mentioned first embodiment is that the extension direction of the conductive sheet 12 of the grounding device 1 is the same as that of the first bracket of the mounting frame 11 . The extension direction of 111 is the same; the clamping member 13 is formed with a second mounting hole 132 and a third mounting hole 133 spaced along the length direction of the clamping member 13, and the fastener 14 passes through the connecting cable (not shown in the figure) , the first mounting hole 1111, the conductive sheet 12 and the second bracket 112, the fastener 14 passes through the second mounting hole 132, the conductive sheet 12 and the second bracket 112; the ground rail 2 is provided between the two rail beams, and The two connecting portions 22 of the ground rail 2 are respectively connected with the two rail beams; the included angle between the first connecting section 221 and the second connecting section 222 of the connecting portion 22 is a right angle.

Other structures of the grounding system 100 in this embodiment are the same as the corresponding structures of the grounding system 100 in the above-mentioned first embodiment, and will not be repeated here.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims (20)

1. A grounding device for a rail vehicle, comprising: a mounting bracket, the mounting bracket includes a first bracket and a second bracket connected to each other and angled to each other, the first bracket is adapted to be connected to the bogie of the rail vehicle; A conductive sheet, the conductive sheet is in the shape of a sheet, the conductive sheet is suitable for connecting with the body of the rail vehicle or the bogie, the conductive sheet includes a mounting portion and a contact portion that are connected to each other, the mounting portion Connected to the second bracket, the contact portion is suitable for abutting with the ground rail on the rail beam. 2 . The grounding device for a rail vehicle according to claim 1 , wherein the included angle between the first bracket and the second bracket is 90 degrees. 3 . 3 . The grounding device for a rail vehicle according to claim 1 , wherein the mounting bracket is a metal piece, and the grounding device comprises: a connecting cable, one end of the connecting cable is connected to the mounting bracket and the other is connected to the mounting bracket. 4 . One end is connected with the vehicle body or the bogie. 4 . The grounding device for a rail vehicle according to claim 3 , wherein one end of the connection cable has a connection terminal, the connection terminal is connected to the mounting frame, and the connection terminal is in the shape of a flat plate. 5 . 5 . The grounding device for a rail vehicle according to claim 1 , wherein the conductive sheet has elastic deformation capability. 6 . 6 . The grounding device for a rail vehicle according to claim 1 , wherein the included angle between the conductive sheet and the contact surface of the grounding rail is α, and the α satisfies: 60°≤α≤90 °. 7 . The grounding device for a rail vehicle according to claim 6 , wherein the contact portion is formed in a trapezoid shape, and in the width direction of the conductive sheet, the ground rail of the contact portion abuts against the ground rail. 8 . The side wall surface extends obliquely. 8 . The grounding device for a rail vehicle according to claim 1 , wherein the conductive sheet is in the shape of a long strip. 9 . 9 . The grounding device for a rail vehicle according to claim 1 , wherein the conductive sheet is a carbon fiber part or a spring steel part. 10 . 10 . The grounding device for a rail vehicle according to claim 1 , wherein the width direction of the conductive sheet is the same as the width direction of the contact surface of the ground rail. 11 . 11. The grounding device of a rail vehicle according to any one of claims 1-10, characterized in that it comprises: a clamping member, the clamping member is provided on the second bracket, and the clamping member A clamping space is defined inside, and the mounting portion is clamped in the clamping space. 12 . The grounding device for a rail vehicle according to claim 11 , wherein the clamping member comprises two clamping pieces that are opposite and spaced apart, and the clamping pieces are defined between the two clamping pieces. 13 . A holding space, one end of each of the clamping pieces adjacent to the contact portion is formed as a bent segment, and in the direction from the mounting portion to the contact portion, the bent segment faces away from the conductive sheet The direction of the centerline extends obliquely. 13 . The grounding device of a rail vehicle according to claim 12 , wherein the bending section is formed in an arc shape. 14 . 14. The grounding device for a rail vehicle according to claim 11, characterized in that it comprises: a fastener passing through the clamping member, the conductive sheet and the second bracket to connect the The clamping piece and the conductive sheet are fixed on the second bracket. 15. A grounding system for a rail vehicle, comprising: The grounding device for a rail vehicle according to any one of claims 1 to 14, wherein the mounting frame is connected to a bogie of the rail vehicle, and the conductive sheet is connected to the body of the rail vehicle or the bogie connect; A ground rail, the ground rail is arranged on the rail beam, and the contact portion is suitable for abutting with the ground rail. 16 . The grounding system of a rail vehicle according to claim 15 , wherein the grounding rail comprises a main body and connecting parts provided at both ends of the main body in the longitudinal direction, and the connecting parts are connected to the rail beams. 17 . , the body is spaced apart from the track beam. 17 . The grounding system of a rail vehicle according to claim 16 , wherein the connecting portion comprises a first connecting section and a second connecting section that are connected to each other, and one end of the first connecting section is connected to the main body. 18 . , the other end of the first connecting section extends toward the track beam, one end of the second connecting section is connected with the other end of the first connecting section, and the other end of the second connecting section is connected with the The track beams are connected. 18 . The grounding system of a rail vehicle according to claim 16 , wherein the main body is arc-shaped and protrudes in a direction away from the rail beam. 19 . 19. The grounding system of a rail vehicle according to any one of claims 15-18, wherein the grounding rail is provided on the side of the rail beam, and the grounding rail extends along the rail beam direction extension. 20. The grounding system of a rail vehicle according to any one of claims 15-18, wherein the track beams comprise two opposite and spaced apart, and the grounding rails are provided on two of the track beams The ground rails are respectively connected with the two rail beams, and the extension direction of the ground rail is perpendicular to the extension direction of the rail beams.

Images