CN110797673A - Grounding device and grounding system of railway vehicle - Google Patents
Grounding device and grounding system of railway vehicle Download PDFInfo
- Publication number
- CN110797673A CN110797673A CN201810861819.5A CN201810861819A CN110797673A CN 110797673 A CN110797673 A CN 110797673A CN 201810861819 A CN201810861819 A CN 201810861819A CN 110797673 A CN110797673 A CN 110797673A
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- Prior art keywords
- rail
- grounding
- grounding device
- vehicle
- rail vehicle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses a grounding device and a grounding system of a railway vehicle, wherein the grounding device comprises: mounting bracket and conducting strip. The mounting bracket includes first support and the second support that links to each other and each other become the angle, and first support is suitable for and links to each other with rail vehicle's bogie, and the conducting strip is the slice, and the conducting strip is suitable for to be connected with rail vehicle's automobile body or bogie, and the conducting strip includes installation department and the contact site that links to each other, and the installation department links to each other with the second support, and the contact site is suitable for and the earth rail butt on the track roof beam. According to the grounding device of the railway vehicle, the structure of the grounding device is simplified, the size of the grounding device is reduced, the grounding device is not easy to interfere with surrounding objects in the running process of the railway vehicle, the contact area between the grounding device and a grounding rail can be reduced, the abrasion of a conducting strip can be reduced, and the service cycle of the grounding device is prolonged.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a grounding device and a grounding system of a rail vehicle.
Background
At present, the common grounding mode of the rail vehicle is a mode of adding a grounding shoe to a grounding rail, namely, the grounding shoe is installed on a bogie or a vehicle body, the grounding rail is installed on a rail beam, and charges gathered on the vehicle body after the vehicle runs for a certain distance or when the vehicle has a leakage fault are guided into the grounding rail through the grounding shoe to be released.
The defects of the scheme are that the grounding shoe is complex in structure, more parts of the grounding rail exist, and related problems such as the collision shoe, the carbon sliding plate abrasion and the like exist in the actual operation process, and particularly the grounding shoe is difficult to arrange under the condition of limited installation space and is easy to interfere with surrounding parts.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a grounding device for a railway vehicle, which has a simple structure, a small volume, less possibility of interference between objects in a track, low wear and long service life.
The invention also provides a grounding system of the railway vehicle with the grounding device.
The grounding device for a railway vehicle according to an embodiment of the first aspect of the present invention comprises: a mounting bracket including a first bracket and a second bracket connected to each other and at an angle to each other, the first bracket adapted to be connected to a bogie of the rail vehicle; the conducting strip, the conducting strip is the slice, the conducting strip be suitable for with rail vehicle's automobile body or the bogie is connected, the conducting strip is including installation department and the contact site that links to each other, the installation department with the second support links to each other, the contact site is suitable for with the rail grounding on the track roof beam butt.
According to the grounding device of the railway vehicle, the structure of the grounding device is simplified and the volume of the grounding device is reduced by arranging the grounding device into the structure comprising the mounting frame and the conducting strips, so that the grounding device is not easy to interfere with surrounding objects in the running process of the railway vehicle, and the contact area between the grounding device and the grounding rail is reduced due to the fact that the grounding device is in contact with the grounding rail through the conducting strips, so that the abrasion of the conducting strips can be reduced, and the service cycle of the grounding device is prolonged.
According to some embodiments of the invention, the angle between the first bracket and the second bracket is 90 degrees.
According to some embodiments of the invention, the mount is a metal piece, and the grounding device comprises: and one end of the connecting cable is connected with the mounting frame, and the other end of the connecting cable is connected with the vehicle body or the bogie.
Optionally, one end of the connection cable is provided with a connection terminal, the connection terminal is connected with the mounting frame, and the connection terminal is in a flat plate shape.
According to some embodiments of the invention, the conductive sheet has an elastic deformation capability.
According to some embodiments of the invention, the angle between the contact surfaces of the conductive strips and the ground rail is α, and the α satisfies 60 ° ≦ α ≦ 90 °.
Alternatively, the contact portion may be formed in a trapezoidal shape, and a side wall surface of the contact portion that abuts against the ground rail may extend obliquely in the width direction of the conductive sheet.
According to some embodiments of the invention, the conductive sheet is in the form of a strip.
According to some embodiments of the invention, the conductive sheet is a carbon fiber piece or a spring steel piece.
According to some embodiments of the invention, a width direction of the conductive sheet is the same as a width direction of the contact face of the ground rail.
According to some embodiments of the invention, the grounding device comprises: the clamping piece is arranged on the second support, a clamping space is limited in the clamping piece, and the mounting part is clamped in the clamping space.
Further, the holder includes two relative and interval two holding pieces that set up, two inject between the holding piece the centre gripping space, every the neighbouring of holding piece the one end of contact site forms into the bending segment, by the installation department extremely in the direction of contact site, the bending segment orientation is kept away from the direction slope of the central line of conducting strip extends.
Optionally, the bend section is formed in an arc shape.
According to some alternative embodiments of the invention, the grounding device comprises: and the fastener penetrates through the clamping piece, the conducting strip and the second bracket so as to fix the clamping piece and the conducting strip on the second bracket.
According to a second aspect of the invention, a grounding system for a rail vehicle comprises: according to the grounding device of the rail vehicle in the embodiment of the first aspect of the invention, the mounting frame is connected with a bogie of the rail vehicle, and the conductive sheet is connected with a vehicle body of the rail vehicle or the bogie; the grounding rail is arranged on the rail beam, and the contact part is suitable for being abutted against the grounding rail.
According to the grounding system of the railway vehicle provided by the embodiment of the invention, by arranging the grounding device, the grounding device is not easy to interfere with surrounding objects in the running process of the railway vehicle, the service cycle of the grounding device can be prolonged, and the reliable grounding of the railway vehicle can be ensured at the same time,
according to some embodiments of the invention, the ground rail includes a main body and connection parts provided at both ends of the main body in a length direction, the connection parts being connected to the rail beam, the main body being spaced apart 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, the other end of the first connecting section extends toward the track beam, one end of the second connecting section is connected to the other end of the first connecting section, and the other end of the second connecting section is connected to the track beam.
Optionally, the body is arcuate and convex away from the track beam.
According to some embodiments of the invention, the grounding rail is provided at a side of the rail beam, and the grounding rail extends in an extension direction of the rail beam.
According to some embodiments of the invention, the track beam comprises two opposite and spaced apart track beams, the grounding rail is arranged between the two track beams and is connected with the two track beams respectively, and the extension direction of the grounding rail is perpendicular to the extension direction of the track beams.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a front view of a grounding system for a rail vehicle according to one embodiment of the present invention;
FIG. 2 is a partial perspective view of a grounding system for a rail vehicle according to one embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a schematic illustration of a grounding rail of a rail vehicle according to one embodiment of the present invention;
FIG. 6 is a front view of a grounding system of a rail vehicle according to another embodiment of the present invention;
fig. 7 is a perspective view of a grounding system of a railway vehicle according to another embodiment of the present invention;
FIG. 8 is a front view of a ground rail of a rail vehicle according to another embodiment of the present invention;
FIG. 9 is a top view of a grounding rail of a rail vehicle according to another embodiment of the present invention;
fig. 10 is a schematic view of the engagement of the conductive sheet and the clamping member of the grounding device according to the embodiment of the present invention;
FIG. 11 is an enlarged view at C of FIG. 10;
figure 12 is a schematic diagram of the mating of the conductive strips of the grounding system with the grounding rail according to one embodiment of the present invention.
Reference numerals:
a grounding system 100;
a grounding device 1; a mounting frame 11; a first bracket 111; a first mounting hole 1111; a second bracket 112; a conductive sheet 12; a mounting portion 121; the contact portion 122; side wall faces 1221; a clamp 13; a holding piece 131; a bend section 1311; a second mounting hole 132; the third mounting hole 133; a fourth mounting hole 134; a fastener 14; a connection cable 15; a connection terminal 151;
a grounding rail 2; a main body 21; a contact surface 211; a connecting portion 22; a first connection section 221; a second connection section 222; a mounting post 23; a ground cable 24.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A grounding device 1 for a rail vehicle according to an embodiment of the present invention is described below with reference to fig. 1 to 12.
As shown in fig. 1 to 12, a grounding device 1 for a railway vehicle according to an embodiment of a first aspect of the present invention includes: a mounting frame 11 and a conductive sheet 12.
In particular, the mounting 11 comprises a first bracket 111 and a second bracket 112 connected to each other and angled with respect to each other, the first bracket 111 being adapted to be connected to a bogie of the rail vehicle, for example the first bracket 111 may be bolted to the bogie. Alternatively, the mount 11 may be a metal piece, for example, the mount 11 may be a stainless steel piece. Thereby, the structural strength of the mounting bracket 11 can be ensured, and the mounting bracket 11 is made to have corrosion resistance.
The conductive sheet 12 is in the form of a sheet, the conductive sheet 12 being adapted for connection to a car body or bogie of a rail vehicle (the connection of the conductive sheet 12 to the car body or bogie of the rail vehicle being an electrically conductive connection), for example the conductive sheet 12 may be electrically conductively connected to the car body or bogie via a connection cable 15. The mounting portion 121 of the conductive plate 12 is connected to the second bracket 112, and the contact portion 122 of the conductive plate 12 is adapted to abut against the ground rail 2 on the rail beam.
Thus, when the grounding device 1 is used for a railway vehicle, the conductive sheet 12 of the grounding device 1 is in contact with the grounding rail 2, and the conductive sheet 12 of the grounding device 1 is connected to the vehicle body or the bogie. In the running process of the rail vehicle, when electric charges generated after the vehicle body runs for a certain distance or the vehicle body has electric leakage fault or the vehicle body is struck by lightning, the electric charges gathered on the vehicle body can be led into the grounding rail 2 through the conducting strip 12 to be released, so that the safety of the rail vehicle can be improved, and the safety of passengers can be ensured. It should be noted that, when the conducting strip 12 is connected to the vehicle body, the charges accumulated on the vehicle body can be directly introduced into the grounding rail 2 through the conducting strip 12 for releasing; when the conductive sheet 12 is connected to the bogie, the electric charge accumulated on the vehicle body can be conducted to the conductive sheet 12 through the bogie and then conducted to the ground rail 2 through the conductive sheet 12 for release.
Because the grounding device 1 is arranged to be of the structure comprising the mounting frame 11 and the conducting strip 12, the structure of the grounding device 1 is simplified, the manufacturing cost is reduced, the size of the grounding device 1 is reduced, the mounting space required by the grounding device 1 on a bogie is smaller, the mounting space is saved, the grounding device can adapt to the bogie structure with smaller space, the mounting and the maintenance of the grounding device 1 are convenient, and the arrangement of the grounding device 1 on the bogie is also simple.
Because the grounding device 1 has a smaller volume, the grounding device 1 is not easy to interfere with surrounding objects in the running process of the railway vehicle, the probability of collision between the grounding device 1 and the objects arranged in the running line of the railway vehicle is greatly reduced, and particularly, the grounding device 1 is not easy to interfere with the objects arranged in the running line under the condition that the vehicles on a road section with small curvature roll.
In addition, because the grounding device 1 is contacted with the grounding rail 2 through the conducting strip 12, the contact area between the grounding device 1 and the grounding rail 2 is reduced, thereby reducing the abrasion of the conducting strip 12 and prolonging the service life of the grounding device 1.
Optionally, the conducting strip 12 has elastic deformation capability, which can ensure the conducting strip 12 to be in close contact with the grounding rail 2, ensure the grounding performance of the grounding device 1, and reduce or avoid the problem of collision of the grounding device 1 during the operation of the rail vehicle.
After the grounding device 1 is installed on a bogie of a railway vehicle, the contact part 122 of the conductive plate 12 is abutted against the grounding rail 2 on a track beam, and in order to ensure that the conductive plate 12 is in close contact with the grounding rail 2, the conductive plate 12 can be elastically bent and deformed under the joint extrusion action of the installation frame 11 and the grounding rail 2, so that the contact part 122 of the conductive plate 12 can be in close contact with the contact surface 211 of the grounding rail 2, and the conductive plate 12 is kept in good conductive contact with the grounding rail 2. Moreover, since the conductive sheet 12 is elastically bent and deformed, the contact portion 122 of the conductive sheet 12 is bent, and the contact portion 122 is bent to contact the contact surface 211 of the ground rail 2, so that the contact area can be increased, and reliable contact between the conductive sheet 12 and the ground rail 2 can be ensured. For example, during the arrival or travel of the rail vehicle, the conductive sheet 12 may be kept in good conductive contact with the ground rail 2 by bending deformation of the conductive sheet 12.
Alternatively, the conductive sheet 12 may be a carbon fiber piece or a spring steel piece. Thereby, it is possible to make the conductive sheet 12 have good wear resistance and good elastic deformability, and at the same time make the conductive sheet 12 have sufficient strength.
For example, when the conductive sheet 12 is a carbon fiber member, the conductive sheet 12 can be made to have good flexibility, and the contact surface 211 of the ground rail 2 is not scratched or scratched during the contact of the conductive sheet 12 with the contact surface 211 of the ground rail 2 of the railway vehicle. Moreover, since the carbon fiber member has a very high bending resistance, the conductive sheet 12 can be restored to its original shape after being bent and deformed greatly, and the structure of the grounding device 1 can be further simplified due to its good electrical and mechanical properties.
Further, the conducting plate 12 can be made of a high-conductivity carbon fiber material, so that the conductivity of the conducting plate 12 is 30 times to 100 times higher than that of a common carbon fiber material, and the current-carrying capacity of the grounding device 1 can reach a transient large current during lightning stroke, thereby having a good lightning protection function and further ensuring the safety of passengers.
According to the grounding device 1 of the railway vehicle, the grounding device 1 is arranged to be of a structure comprising the mounting frame 11 and the conducting strips 12, the structure of the grounding device 1 is simplified, the size of the grounding device 1 is reduced, the grounding device 1 is not prone to interference of surrounding objects in the running process of the railway vehicle, and the grounding device 1 is in contact with the grounding rail 2 through the conducting strips 12, so that the contact area between the grounding device 1 and the grounding rail 2 is reduced, the abrasion of the conducting strips 12 can be reduced, and the service cycle of the grounding device 1 is prolonged.
According to some embodiments of the present invention, referring to fig. 1, 2, 6, and 7, the angle between the first bracket 111 and the second bracket 112 is 90 degrees. This makes the structure of the mounting bracket 11 simple and the structure thereof highly rigid.
According to some embodiments of the present invention, referring to fig. 1 and 2, the mounting bracket 11 is a metal member, thereby providing the mounting bracket 11 with good electrical conductivity, and the grounding device 1 includes: and a connection cable 15, one end of the connection cable 15 being connected to the mounting bracket 11 and the other end being connected to the vehicle body or the bogie, the one end of the ground cable 24 being connected to the first bracket 111, and the one end of the ground cable 24 being connected to the second bracket 112. Thus, with the above arrangement, the conductive connection between the connection cable 15 and the conductive sheet 12 is facilitated.
Alternatively, referring to fig. 3, one end of the connection cable 15 has a connection terminal 151, the connection terminal 151 being connected to the mounting block 11, the connection terminal 151 having a flat plate shape. This increases the contact area between the connection cable 15 and the mount 11, and improves the reliability of the conductive contact between the connection cable 15 and the mount 11.
According to some embodiments of the present invention, referring to fig. 1, 2, 6, 7 and 12, an included angle between the conductive sheet 12 and the contact surface 211 of the ground rail 2 is α, and the α satisfies that 60 ° ≦ α ≦ 90 °, so that the contact between the conductive sheet 12 and the contact surface 211 of the ground rail 2 may be made vertical at α ° (referring to fig. 1, 2, 6 and 7), thereby making the contact between the conductive sheet 12 and the contact surface 211 of the ground rail 2 more stable, and when 60 ° ≦ α ≦ 90 (referring to fig. 12), the contact between the conductive sheet 12 and the contact surface 211 of the ground rail 2 may be made oblique, thereby appropriately increasing the contact area between the conductive sheet 12 and the contact surface 211 of the ground rail 2, and further ensuring reliable contact between the conductive sheet 12 and the ground rail 2.
Alternatively, referring to fig. 12, the contact portion 122 is formed in a trapezoidal shape, and in the width direction of the conductive sheet 12 (refer to direction f in fig. 12), a side wall surface 1221 of the contact portion 122 abutting against the ground rail 2 extends obliquely, that is, an angle is formed 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. Thereby, the contact surface 211 of the conductive sheet 12 and the ground rail 2 can be easily brought into contact with each other at an inclination, and the area of the side wall surface 1221 of the contact portion 122 to be in contact with the ground rail 2 can be increased.
According to some embodiments of the present invention, referring to fig. 1, 2, 6, and 7, the conductive sheet 12 is in the form of a strip sheet. This allows the conductive sheet 12 to withstand greater deflection without breaking.
According to some embodiments of the present invention, referring to fig. 1, 2 and 7, 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 (referring to the e direction in fig. 1, 2 and 7). Thereby, a 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 comprise a first portion and a second portion perpendicular to each other, wherein the first portion is connected with the mounting portion 121 and coincides with the extension direction of the mounting portion 121, and the second portion is adapted to abut with the contact surface 211 of the ground rail 2. Thereby, the contact area of the conductive sheet 122 and the ground rail 2 can be appropriately increased. It should be noted that the volume ratio of the second portion of the contact portion 122 is small compared to the whole conductive plate 12, so that the contact area between the conductive plate 12 and the grounding rail 2 can be increased properly, and the serious problem of abrasion caused by the excessive contact area of the carbon sliding plate in the conventional grounding shoe can be avoided. Alternatively, the contact portion 122 may be formed in an L-shape or a T-shape, for example, a free end of the contact portion 122 may be bent to form an L-shape.
According to some embodiments of the invention, fig. 1-3, 6, 7, 10 and 11, the grounding device 1 comprises: and the clamping piece 13 is arranged on the second bracket 112, a clamping space is defined in the clamping piece 13, and the mounting part 121 of the conducting plate 12 is clamped in the clamping space. Thus, the conductive sheet 12 is conveniently fixed on the second bracket 112 by the clamping piece 13. Alternatively, the clamping member 13 may be a metal member, for example, the clamping member 13 is a stainless steel member.
For example, when the holder 13 is a metal member, the connection cable 15 may be connected to the holder 13, and the holder 13 and the conductive plate 12 are electrically connected to each other by contact, and the connection cable 15 and the holder 13 are electrically connected to each other, so that the conductive plate 12 and the connection cable 15 are electrically connected to each other. For example, when the holder 13 is a metal member, the connection cable 15 may be connected to the holder 13, and the conductive sheet 12 may be electrically connected to the connection cable 15 by passing a screw through the connection cable 15, the holder 13, and the conductive sheet 12. For example, when the holder 13 is a non-metal member, the connection cable 15 may be connected to the holder 13, and screws may be inserted through the connection cable 15, the holder 13, and the conductive plate 12, so that the conductive plate 12 and the connection cable 15 are conductively connected by contact between the screws and the conductive plate 12 and contact between the screws and the connection cable 15.
Further, referring to fig. 3, 7, 10 and 11, the clamping member 13 includes two clamping pieces 131 disposed opposite to each other at an interval, a clamping space is defined between the two clamping pieces 131, one end of each clamping piece 131 adjacent to the contact portion 122 of the conductive sheet 12 is formed as a bent section 1311, and the bent section 1311 extends obliquely toward a direction away from the center line of the conductive sheet 12 in a direction from the mounting portion 121 of the conductive sheet 12 to the contact portion 122 of the conductive sheet 12. Therefore, the assembly between the conducting plate 12 and the clamping piece 13 is convenient, the clamping piece 13 is convenient to clamp the mounting part 121 of the conducting plate 12, and one end of the clamping piece 131, which is adjacent to the contact part 122 of the conducting plate 12, is formed into the bending section 1311, so that the conducting plate 12 can have good transition in the bending process, and when the contact part 122 of the conducting plate 12 is bent, part of the guiding and supporting can be performed through the bending section 1311, and the conducting plate 12 is not easy to break.
Alternatively, referring to fig. 3 and 11, the bent section 1311 may be formed in an arc shape. Therefore, when the conductive sheet 12 is bent, under the guiding action of the arc-shaped bending section 1311, the root of the contact part 122 of the conductive sheet 12 (i.e., the part of the contact part 122 of the conductive sheet 12 adjacent to the mounting part 121) can be subjected to arc-shaped bending deformation, so that stress concentration is reduced, the conductive sheet 12 is further prevented from being broken easily, and the service life of the conductive sheet 12 is prolonged.
According to some alternative embodiments of the invention, with reference to fig. 1-3, 6 and 7, the grounding device 1 comprises: and the fastener 14, wherein the fastener 14 penetrates through the clamping piece 13, the conducting plate 12 and the second support 112 to fix the clamping piece 13 and the conducting plate 12 on the second support 112. Therefore, the conducting strip 12 can be reliably and firmly fixed on the mounting frame 11, and the replacement and the maintenance of the conducting strip 12 are convenient.
Referring to fig. 1 to 12, a rail vehicle grounding system 100 according to a second aspect of the embodiment of the present invention includes: according to the grounding device 1 and the grounding rail 2 of the rail vehicle of the above-described first aspect of the present invention, the mounting frame 11 is connected to a bogie of the rail vehicle, the conductive plate 12 is connected to a car body or the bogie of the rail vehicle, the grounding rail 2 is provided on the rail beam, and the contact portion 122 of the conductive plate 12 is adapted to abut against the grounding rail 2.
According to the grounding system 100 of the railway vehicle provided by the embodiment of the invention, by arranging the grounding device 1, the grounding device 1 is not easy to interfere with surrounding objects in the running process of the railway vehicle, the service cycle of the grounding device 1 can be prolonged, the reliable grounding of the railway vehicle can be ensured,
according to some embodiments of the present invention, referring to fig. 2, 4-9, the ground rail 2 includes a main body 21 and connection parts 22 provided at both ends of the main body 21 in a length direction, the connection parts 22 being connected to the rail beam, the main body 21 being spaced apart from the rail beam. From this, can simplify the mounting structure of grounding rail 2, save the installing support that traditional grounding rail adopted for the installation of grounding rail 2 is more convenient and the cost is reduced, can guarantee simultaneously that can keep sufficient distance between grounding rail 2's contact surface 211 and the track roof beam, thereby can further reduce and take place to interfere with the track roof beam with grounding device 1 that grounding rail 2 contacted. It should be explained here that the side of the body 21 facing away from the rail beam is the contact surface 211 of the ground rail 2.
Alternatively, referring to fig. 4, 6 to 8, the connection part 22 includes a first connection section 221 and a second connection section 222 connected to each other, one end of the first connection section 221 is connected to the main body 21, the other end of the first connection section 221 extends toward the rail beam, one end of the second connection section 222 is connected to the other end of the first connection section 221, and the other end of the second connection section 222 is connected to the rail beam. Thus, the body 21 of the ground rail 2 can be easily spaced apart from the rail beam to maintain a sufficient distance by the bent structure formed by the connection portion 22.
Optionally, the body 21 is arcuate and convex away from the track beam. Thereby, it is conveniently achieved that the body 21 is spaced from the rail beam such that a sufficient distance is maintained between the contact surface 211 of the grounding rail 2 and the rail beam. And, because the contact surface 211 is formed into an arc surface at this time, when the conducting strip 12 of the grounding device 1 contacts with the contact surface 211 of the grounding rail 2, the conducting strip 12 can be conveniently guided to contact with the contact surface 211 of the grounding rail 2, and the conducting strip 12 and the grounding rail 2 are prevented from being collided vertically.
According to some embodiments of the present invention, referring to fig. 1, 2 and 5, the grounding rail 2 is provided at a side of the track beam, and the grounding rail 2 extends in an extending direction of the track beam. Therefore, the grounding rail 2 is arranged on the side surface of the track beam, so that the grounding device 1 and the grounding rail 2 can still keep good electric contact under the conditions that the vehicle body is fully loaded, unloaded or in some limit working conditions.
According to some embodiments of the present invention, referring to fig. 6 to 9, the track beam includes two opposite and spaced apart track beams, the grounding rail 2 is disposed between the two track beams and connected to the two track beams, respectively, and the extending direction of the grounding rail 2 is perpendicular to the extending direction of the track beams. Thereby, the grounding rail 2 is provided 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 width, so that the current-carrying capacity of the grounding system 100 can be further increased. Also, since the grounding rail 2 is located below the vehicle body, the risk of interference of the grounding device 1 with surrounding components in the wiring can be further avoided or reduced.
The grounding device 1 and the grounding system 100 of a railway vehicle according to various embodiments of the present invention will be described in detail with reference to fig. 1 to 11.
In the first embodiment, the first step is,
referring to fig. 1 to 5, in the present embodiment, a grounding system 100 of a railway vehicle includes the above-described grounding device 1 and a grounding rail 2. The earthing device 1 is mounted on a bogie of a railway vehicle, and the earthing rail 2 is mounted on a side surface of a rail beam and extends in an extending direction of the rail beam. The grounding device 1 is connected with a vehicle body or a bogie through a connecting cable 15, and the conducting strip 12 of the grounding device 1 is contacted with the contact surface 211 of the grounding rail 2. Therefore, in the running process of the rail vehicle, when electric charges generated after the vehicle body runs for a certain distance or the vehicle body has electric leakage fault or the vehicle body is struck by lightning, the electric charges gathered on the vehicle body can be led into the grounding rail 2 through the conducting strips 12 to be released, so that the safety of the rail vehicle can be improved, and the safety of passengers can be ensured.
Specifically, the grounding device 1 includes a mounting bracket 11, a conductive sheet 12, a clamp 13, a fastener 14, and a connection cable 15. Wherein, the mounting bracket 11 is a stainless steel member, and the mounting bracket 11 includes the above-mentioned first support 111 and second support 112, and first support 111 and second support 112 all are rectangular piece shape, and the contained angle between first support 111 and the second support 112 is 90 degrees, and the mounting bracket 11 wholly is L shape. The first bracket 111 is formed with two first mounting holes 1111, and two bolts are respectively inserted through the two first mounting holes 1111 to be coupled to the bogie, so that the mounting bracket 11 can be fixed to the bogie.
The conductive sheet 12 is in the shape of a long strip, the conductive sheet 12 is a carbon fiber member, and the conductive sheet 12 is connected to the second support 112 and is disposed perpendicular to the second support 112. The clamping member 13 includes the two clamping pieces 131, the clamping pieces 131 are stainless steel pieces, and the mounting portion 121 of the conductive plate 12 is clamped in the clamping space defined by the two clamping pieces 131. The clamping member 13 is formed with second mounting holes 132, third mounting holes 133 and fourth mounting holes 134 arranged at intervals along the length direction of the clamping member 13, the fastening member 14 penetrates the connecting cable 15, the first mounting hole 1111, the conductive sheet 12 and the second bracket 112, the fastening member 14 penetrates the second mounting holes 132, the conductive sheet 12 and the second bracket 112, and the bolt penetrates the third mounting holes 133 and the conductive sheet 12. Thereby, the conductive plate 12 can be fixed on the mounting frame 11, while the conductive connection between the connection cable 15 and the conductive plate 12 can be achieved, and the fixed clamping of the conductive plate 12 in the holder 13 can be ensured.
One end of each of the clamping pieces 131 adjacent to the contact portion 122 of the conductive sheet 12 is formed as a bent section 1311, the bent section 1311 extends obliquely toward a direction away from the center line of the conductive sheet 12 in a direction from the mounting portion 121 of the conductive sheet 12 to the contact portion 122 of the conductive sheet 12, and the bent 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 plate 12 contacts with the contact surface 211 of the ground rail 2, and the conductive plate 12 is bent under the joint squeezing action of the mounting frame 11 and the ground rail 2, so that the conductive plate 12 can be ensured to be in close contact with the ground rail 2. Moreover, when the conductive sheet 12 is bent, under the guiding action of the arc-shaped bending section 1311, the root of the contact portion 122 of the conductive sheet 12 can be subjected to arc-shaped bending deformation, so that stress concentration is reduced, the conductive sheet 12 is not easily broken, and the service life of the conductive sheet 12 is prolonged.
The grounding rail 2 comprises a main body 21 and a connecting part 22 connecting two ends of the main body 21 in the length direction, the connecting part 22 comprises the first connecting section 221 and the second connecting section 222, the first connecting section 221 extends obliquely in the direction parallel to the extending 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 part 22 is in a bent structure, the main body 21 of the grounding rail 2 is spaced from the track beam, and a sufficient distance can be reserved between the contact surface 211 of the grounding rail 2 and the track beam. Further, the main body 21 is arc-shaped and protrudes towards the direction far away from the track beam, so that the main body 21 can be better separated from the track beam, and the contact surface 211 of the conducting plate 12 and the grounding rail 2 can be conveniently guided to contact, and the conducting plate 12 and the grounding rail 2 are prevented from perpendicularly impacting.
The main body 21 of the grounding rail 2 and the grounding rail 2 can be connected by a long screw, so that the main body 21 is spaced from the rail beam, and the grounding rail 2 can be further reliably connected to the rail beam. The connecting portion 22 of the grounding rail 2 is provided with an installation column 23 for installing and fixing a grounding cable 24, the installation column 23 can be welded on the connecting portion 22 of the grounding rail 2, and the installation column 23 is a metal piece.
The grounding system 100 of the present embodiment can be used for platform grounding and also for full-line grounding. The ground contact device 1 is mounted on a bogie between two marshalling cars of a railway vehicle according to the structural size of the two marshalling cars and in consideration of the rail length influence of the ground contact rail 2. For example, the interval between two grounding devices 1 may be 3800mm, and the grounding rails 2 may be arranged at intervals of 3780mm, and adjacent grounding rails 2 are connected by copper wires.
The grounding system 100 of the rail vehicle of the embodiment simplifies the structure of the grounding device 1, reduces the volume of the grounding device 1, ensures that the grounding device 1 is not easy to interfere with surrounding objects in the running process of the rail vehicle, can ensure the close contact between the conducting strip 12 and the grounding rail 2, ensures the grounding performance of the grounding device 1, reduces the contact area 211 between the grounding device 1 and the grounding rail 2, can reduce the abrasion of the conducting strip 12, and prolongs the service cycle of the grounding device 1. And, can simplify the mounting structure of ground rail 2, save the mounting bracket 11 that traditional ground rail 2 adopted for the installation of ground rail 2 is more convenient and reduce the cost, can guarantee simultaneously that can keep sufficient distance between the contact surface 211 of ground rail 2 and the track roof beam, thereby can further reduce ground device 1 and the track roof beam emergence of ground rail 2 contact and interfere. In addition, by arranging the grounding rail 2 on the side surface of the track beam, the grounding device 1 and the grounding rail 2 can still keep good electric contact under the conditions that the vehicle body is fully loaded, unloaded or in some limit working conditions.
In the second embodiment, the first embodiment of the method,
referring to fig. 6 to 11, the grounding system 100 of the present embodiment is mainly different from the grounding system 100 of the first embodiment in that: the extending direction of the conducting strip 12 of the grounding device 1 is consistent with the extending direction of the first support 111 of the mounting frame 11; the clamping piece 13 is provided with a second mounting hole 132 and a third mounting hole 133 which are arranged at intervals along the length direction of the clamping piece 13, the fastener 14 penetrates through a connecting cable (not shown), the first mounting hole 1111, the conducting plate 12 and the second bracket 112, and the fastener 14 penetrates through the second mounting hole 132, the conducting plate 12 and the second bracket 112; the grounding rail 2 is arranged between the two rail beams, and the two connecting parts 22 of the grounding rail 2 are respectively connected with the two rail beams; the angle between the first connection section 221 and the second connection section 222 of the connection portion 22 is a right angle.
Other structures of the grounding system 100 of the present embodiment are the same as the corresponding structures of the grounding system 100 of the first embodiment, and are not described herein again.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above 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.
While embodiments of the 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 to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (20)
1. A grounding device for a railway vehicle, comprising:
a mounting bracket including a first bracket and a second bracket connected to each other and at an angle to each other, the first bracket adapted to be connected to a bogie of the rail vehicle;
the conducting strip, the conducting strip is the slice, the conducting strip be suitable for with rail vehicle's automobile body or the bogie is connected, the conducting strip is including installation department and the contact site that links to each other, the installation department with the second support links to each other, the contact site is suitable for with the rail grounding on the track roof beam butt.
2. The rail vehicle grounding device of claim 1, wherein the angle between the first bracket and the second bracket is 90 degrees.
3. The rail vehicle grounding device of claim 1, wherein the mounting bracket is a metal piece, the grounding device comprising: and one end of the connecting cable is connected with the mounting frame, and the other end of the connecting cable is connected with the vehicle body or the bogie.
4. The rail vehicle grounding device of claim 3, wherein one end of the connection cable has a connection terminal connected to the mounting bracket, the connection terminal having a flat plate shape.
5. The rail vehicle grounding device of claim 1, wherein the conductive sheet has an elastic deformation capability.
6. The grounding device of a railway vehicle as claimed in claim 1, wherein the included angle between the contact surfaces of the conductive strips and the grounding rail is α, and the included angle α satisfies 60 ° ≦ α ≦ 90 °.
7. The rail vehicle grounding device according to claim 6, wherein the contact portion is formed in a trapezoidal shape, and a side wall surface of the contact portion that abuts the grounding rail extends obliquely in a width direction of the conductive sheet.
8. The rail vehicle grounding device of claim 1, wherein the conductive sheet is in the form of an elongated strip.
9. The rail vehicle grounding device of claim 1, wherein the conductive sheet is a carbon fiber piece or a spring steel piece.
10. The grounding device of a railway vehicle as claimed in claim 1, wherein the width direction of the conductive sheet is the same as the width direction of the contact surface of the grounding rail.
11. The rail vehicle grounding device of any one of claims 1 to 10, characterized by comprising: the clamping piece is arranged on the second support, a clamping space is limited in the clamping piece, and the mounting part is clamped in the clamping space.
12. The grounding device of a railway vehicle as claimed in claim 11, wherein the clamping member comprises two clamping pieces which are oppositely arranged at intervals, the clamping space is defined between the two clamping pieces, one end of each clamping piece adjacent to the contact portion is formed into a bent section, and the bent section extends obliquely towards a direction away from the center line of the conducting strip in a direction from the mounting portion to the contact portion.
13. The rail vehicle ground engaging apparatus of claim 12, wherein the bend section is formed in an arc.
14. The rail vehicle grounding device of claim 11, comprising: and the fastener penetrates through the clamping piece, the conducting strip and the second bracket so as to fix the clamping piece and the conducting strip on the second bracket.
15. A grounding system for a rail vehicle, comprising:
the rail vehicle grounding device of any one of claims 1 to 14, wherein the mounting bracket is connected to a bogie of the rail vehicle, and the conductive strip is connected to a body of the rail vehicle or the bogie;
the grounding rail is arranged on the rail beam, and the contact part is suitable for being abutted against the grounding rail.
16. The rail vehicle grounding system of claim 15, wherein the grounding rail includes a main body and connecting portions provided at both ends of the main body in a length direction thereof, the connecting portions being connected to the rail beam, the main body being spaced apart from the rail beam.
17. The rail vehicle grounding system of claim 16, wherein the connecting portion includes a first connecting section and a second connecting section connected to each other, one end of the first connecting section is connected to the main body, the other end of the first connecting section extends toward the rail beam, one end of the second connecting section is connected to the other end of the first connecting section, and the other end of the second connecting section is connected to the rail beam.
18. The rail vehicle grounding system of claim 16, wherein the body is arcuate and convex away from the rail beam.
19. The rail vehicle grounding system of any one of claims 15 to 18, characterized in that the grounding rail is provided at a side of the rail beam and the grounding rail extends in the extension direction of the rail beam.
20. The rail vehicle grounding system of any one of claims 15 to 18, wherein the rail beams include two oppositely and spaced apart rail beams, the grounding rail is disposed between the two rail beams and is connected to the two rail beams, respectively, and the extension direction of the grounding rail is perpendicular to the extension direction of the rail beams.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861819.5A CN110797673A (en) | 2018-08-01 | 2018-08-01 | Grounding device and grounding system of railway vehicle |
| PCT/CN2019/098826 WO2020025017A1 (en) | 2018-08-01 | 2019-08-01 | Grounding device and grounding system for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861819.5A CN110797673A (en) | 2018-08-01 | 2018-08-01 | Grounding device and grounding system of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110797673A true CN110797673A (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810861819.5A Pending CN110797673A (en) | 2018-08-01 | 2018-08-01 | Grounding device and grounding system of railway vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN110797673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619626A (en) * | 2021-08-20 | 2021-11-09 | 中车唐山机车车辆有限公司 | Vehicle body and magnetic levitation vehicle |
| CN115158367A (en) * | 2022-07-19 | 2022-10-11 | 中车株洲电力机车有限公司 | Empty rail rubber wheel vehicle and active safety grounding device and method thereof |
-
2018
- 2018-08-01 CN CN201810861819.5A patent/CN110797673A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619626A (en) * | 2021-08-20 | 2021-11-09 | 中车唐山机车车辆有限公司 | Vehicle body and magnetic levitation vehicle |
| CN113619626B (en) * | 2021-08-20 | 2023-01-24 | 中车唐山机车车辆有限公司 | Vehicle body and magnetic levitation vehicle |
| CN115158367A (en) * | 2022-07-19 | 2022-10-11 | 中车株洲电力机车有限公司 | Empty rail rubber wheel vehicle and active safety grounding device and method thereof |
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