A pantograph structure for rail transit vehicles

Abstract

The present invention belongs to the pantograph structure of rail transit vehicles in the technical field of rail transit vehicles. The pantograph assembly mounting bracket (1) of the pantograph structure of rail transit vehicles is connected to the carbon brush fixing bracket (10). The carbon brush arm (2) is connected to the carbon brush assembly (39) through the boot pressure spring (21). The carbon brush assembly (39) includes a carbon brush assembly A (11), a carbon brush assembly B (12), a carbon brush assembly C (13), and a carbon brush assembly GND (14). The pantograph structure of rail transit vehicles includes a left rail transit vehicle pantograph (3) and a right rail transit vehicle pantograph (4). The pantograph structure of rail transit vehicles according to the present invention realizes three-phase power supply, meets the integrated pantograph for three-phase current collection, can configure any one of the phases according to the vehicle power supply needs, has flexible cooperation, better stability, comprehensively improves the use performance and reliability, and reduces the volume.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit vehicles, and more specifically, relates to a pantograph structure for rail transit vehicles. Background Art

[0002] A good current collection state of rail transit vehicles is very important. There are two types of vehicle power supply in the rail transit field, one is DC power supply and the other is AC power supply. DC power supply is divided into positive and negative poles. For the subway rail system, only one pantograph is needed for power supply as the positive pole, and the steel wheel serves as the negative pole and the ground, without the need for more pantographs as current collectors. In the prior art, there is also a type of rail transit vehicle with a rubber wheel power supply system. In the actual design, the pantograph consists of three independent pantographs or grounding boots, namely the positive pantograph, the negative pantograph, and the grounding boot, and the three boots are independent of each other and not an integral structure, and need to be installed separately. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: aiming at the deficiencies of the prior art, to provide an integrated pantograph with a simple structure that can achieve three-phase power supply and meet three-phase current collection, which can be configured with any phase according to the vehicle power supply needs, has flexible cooperation, better stability, comprehensively improves the service performance and reliability, and reduces the volume of the rail transit vehicle pantograph structure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] The present invention is a pantograph structure for rail transit vehicles, which includes a pantograph assembly mounting bracket. The pantograph assembly mounting bracket is connected to a carbon brush fixing bracket. The carbon brush arm is connected to the carbon brush assembly through a boot pressure spring. The carbon brush assembly includes carbon brush assembly A, carbon brush assembly B, carbon brush assembly C, and carbon brush assembly GND14. One end of spring 7 is connected to one carbon brush assembly, and the other end of each spring is connected to the carbon brush fixing bracket. Carbon brush assembly A, carbon brush assembly B, and carbon brush assembly C are connected to a three-phase carbon brush assembly connecting piece. Each carbon brush arm holder is connected to one carbon brush arm and one carbon brush assembly. The pantograph structure for rail transit vehicles includes a left rail transit vehicle pantograph and a right rail transit vehicle pantograph.

[0006] The pantograph structure for rail transit vehicles includes a left rail transit vehicle pantograph and a right rail transit vehicle pantograph. The left rail transit vehicle pantograph and the right rail transit vehicle pantograph are arranged on both sides of the rail of the rail transit. The left rail transit vehicle pantograph and the right rail transit vehicle pantograph are set to have a symmetric structure.

[0007] The carbon brush assembly of the left rail transit vehicle pantograph includes left carbon brush assembly A, left carbon brush assembly B, left carbon brush assembly C, and left carbon brush assembly GND.

[0008] The carbon brush assembly of the right pantograph of the rail transit vehicle includes a right carbon brush assembly A, a right carbon brush assembly B, a right carbon brush assembly C, and a right carbon brush assembly GND.

[0009] The left pantograph and the right pantograph of the pantograph structure of the rail transit vehicle also respectively include fixing pins, and each fixing pin connects a U-shaped carbon brush arm holder and a carbon brush fixing bracket.

[0010] The left pantograph and the right pantograph of the pantograph structure of the rail transit vehicle also respectively include a plurality of carbon brush arm holders, and each carbon brush arm holder connects a carbon brush arm and a carbon brush assembly.

[0011] The pantograph structure of the rail transit vehicle also includes a safety stop, and the safety stop is arranged to prevent the extreme bounce of the carbon brush assembly.

[0012] The pantograph structure of the rail transit vehicle also includes a connecting rod of the grounding shoe.

[0013] The pantograph assembly mounting bracket is mounted on the rail transit vehicle.

[0014] The carbon brush assemblies of the left pantograph and the right pantograph of the rail transit vehicle are arranged to form a structure capable of multiple pantograph configurations.

[0015] Adopting the technical solution of the present invention, the working principle and beneficial effects are as follows:

[0016] The pantograph structure of the rail transit vehicle described in the present invention proposes an integrated pantograph structure that can be flexibly configured as needed. 1) Flexible configuration: The pantograph is divided into left and right sides. The carbon brush assembly of the left rail transit vehicle pantograph includes left carbon brush assembly A, left carbon brush assembly B, left carbon brush assembly C, and left carbon brush assembly GND. The carbon brush assembly of the right rail transit vehicle pantograph includes right carbon brush assembly A, right carbon brush assembly B, right carbon brush assembly C, and right carbon brush assembly GND. In this way, the left and right sides are each composed of four boots A / B / C / GND, and the carbon brush assemblies on the left and right sides can be selected according to needs to form the pantograph configuration actually required by the vehicle. For example, left carbon brush assembly B on the left side, right carbon brush assembly A and right carbon brush assembly C on the right side can be selected; or right carbon brush assembly B on the right side, left carbon brush assembly A and left carbon brush assembly C on the left side can be selected. The left carbon brush assembly GND and the right carbon brush assembly GND are both configured on both sides to increase the grounding reliability. 2) Integrated configuration, better stability. The power supply on the line is divided into power supply zones, while the GND on the pantograph does not require a power supply zone. The GND will always be within the grounding rail. The grounding boot is fixedly connected to the pantographs of other phases through a connecting rod. At this time, because the grounding boot slides stably within the grounding rail, the pantographs of other phases will also be in relatively fixed positions due to the fixation of the connecting rod and can stably pass through the dead zone. The pantograph structure of the rail transit vehicle described in the present invention has a simple structure, realizes three-phase power supply, meets the integrated pantograph for three-phase current collection, can select any phase according to the vehicle power supply needs for configuration, has flexible cooperation, better stability, comprehensively improves the service performance and reliability, and reduces the volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following briefly describes the content expressed in each drawing of this specification and the marks in the drawings:

[0018] Figure 1 is the front view schematic diagram of the pantograph structure of the rail transit vehicle described in the present invention;

[0019] Figure 2 is the side view schematic diagram of the pantograph structure of the rail transit vehicle described in the present invention;

[0020] The marks in the drawings are respectively: 1. Pantograph assembly mounting bracket; 2. Carbon brush arm; 3. Left rail transit vehicle pantograph; 4. Right rail transit vehicle pantograph; 7. Spring; 8. Connecting rod; 9. Fixed pin; 10. Carbon brush fixing bracket; 11. Carbon brush assembly A; 12. Carbon brush assembly B; 13. Carbon brush assembly C; 14. Carbon brush assembly GND; 16. Three-phase carbon brush assembly connecting piece; 17. Safety stop; 18. U-shaped carbon brush arm fixator; 19. Carbon brush arm fixator; 21. Boot pressure spring; 27. Carbon brush fixing bracket fixing fastener I; 30. U-shaped carbon brush arm fixator fixing pin; 36. Fixed pin; 39. Carbon brush assembly. Detailed implementation manners

[0021] The following will further elaborate in detail on the specific implementation manners of the present invention, such as the shapes, structures of the components involved, the mutual positions and connection relationships between various parts, the functions of each part, and the working principles, etc., with reference to the accompanying drawings and through the description of the embodiments:

[0022] As shown in the attached Figure 1 - attached Figure 2 figures, the present invention relates to a pantograph structure for rail transit vehicles, which includes a pantograph assembly mounting bracket 1. The pantograph assembly mounting bracket 1 is connected to a carbon brush fixing bracket 10. The carbon brush arm 2 is connected to a carbon brush assembly 39 through a boot pressure spring 21. The carbon brush assembly 39 includes a carbon brush assembly A 11, a carbon brush assembly B 12, a carbon brush assembly C 13, and a carbon brush assembly GND 14. One end of each spring 7 is connected to a carbon brush assembly 39, and the other end of each spring 7 is connected to the carbon brush fixing bracket 10. The carbon brush assembly A 11, the carbon brush assembly B 12, and the carbon brush assembly C 13 are connected to a three-phase carbon brush assembly connector 16. Each carbon brush arm holder 19 is connected to a carbon brush arm 2 and a carbon brush assembly 39. The pantograph structure for rail transit vehicles includes a left rail transit vehicle pantograph 3 and a right rail transit vehicle pantograph 4. For the deficiencies in the prior art, the above structure proposes a brand-new technical solution. To overcome the defects, an integrated pantograph structure that can be flexibly configured according to needs is proposed. 1) It can be flexibly configured: The pantograph is divided into left and right sides and is symmetrically arranged. The carbon brush assembly 39 of the left rail transit vehicle pantograph 3 includes a left carbon brush assembly A, a left carbon brush assembly B, a left carbon brush assembly C, and a left carbon brush assembly GND. The carbon brush assembly 39 of the right rail transit vehicle pantograph 4 includes a right carbon brush assembly A, a right carbon brush assembly B, a right carbon brush assembly C, and a right carbon brush assembly GND. In this way, the left and right sides are each composed of four boots A / B / C / GND, and the carbon brush assemblies on the left and right sides can be selected according to needs to form the pantograph configuration actually required by the vehicle. For example: the left carbon brush assembly B on the left side, the right carbon brush assembly A and the right carbon brush assembly C on the right side can be selected; or the right carbon brush assembly B on the right side, the left carbon brush assembly A and the left carbon brush assembly C on the left side can be selected. The left carbon brush assembly GND and the right carbon brush assembly GND are both selected on both sides to increase the grounding reliability. 2) The integrated configuration has better stability. The power supply on the line is divided into power supply zones, while the GND on the pantograph does not require a power supply zone. The GND will always be within the grounding rail. The grounding boot is fixedly connected to the pantographs of other phases through a connecting rod 8. At this time, because the grounding boot slides stably within the grounding rail, the pantographs of other phases will also be in relatively fixed positions due to the fixation of the connecting rod and can stably pass through the dead zone. The pantograph structure for rail transit vehicles described in the present invention has a simple structure, realizes three-phase power supply, meets the integrated pantograph for three-phase current collection, can select any phase according to the vehicle power supply needs for configuration, has flexible cooperation, better stability, comprehensively improves the service performance and reliability, and reduces the volume.

[0023] The pantograph structure of the rail transit vehicle described above includes a left rail transit vehicle pantograph 3 and a right rail transit vehicle pantograph 4. The left rail transit vehicle pantograph 3 and the right rail transit vehicle pantograph 4 are arranged on both sides of the rail of the rail transit. The left rail transit vehicle pantograph 3 and the right rail transit vehicle pantograph 4 are set to have a symmetric structure. In the above structure, the pantograph is divided into the left side and the right side. The carbon brush assembly 39 of the left rail transit vehicle pantograph 3 includes a left carbon brush assembly A, a left carbon brush assembly B, a left carbon brush assembly C, and a left carbon brush assembly GND. The carbon brush assembly 39 of the right rail transit vehicle pantograph 4 includes a right carbon brush assembly A, a right carbon brush assembly B, a right carbon brush assembly C, and a right carbon brush assembly GND. In this way, the left side and the right side are each composed of four boots A / B / C / GND, and the carbon brush assemblies on the left side and the right side can be selected as needed to form the pantograph configuration actually required by the vehicle, effectively meeting the requirements of the rail transit vehicle.

[0024] The structure described in the present invention mainly provides a pantograph for integrated U / V / W / GND three-phase power supply. The designed structure can be configured with any of the phases according to the power supply needs of the vehicle. For example, A / B can be used as the positive and negative poles of direct current, and the carbon brushes of other phases can be removed; A / B / C can be used as U / V / W. The left side and the right side are each composed of four boots A / B / C / GND, and the carbon brush assemblies on the left side and the right side can be selected as needed to form the pantograph configuration actually required by the vehicle. For example, B on the left side, A and C on the right side can be selected; or B on the right side, A and C on the left side can be selected; or A on the left side and A on the right side can be used as the positive and negative poles respectively. During the above use process, GND should be kept in the grounding rail, and the position of the grounding boot can be fixed in the grounding rail. The connection through the connecting rod 8 can keep the positions of other boots fixed.

[0025] The carbon brush assemblies 39 of the left rail transit vehicle current collector shoe 3 include a left carbon brush assembly A, a left carbon brush assembly B, a left carbon brush assembly C, and a left carbon brush assembly GND. The carbon brush assemblies 39 of the right rail transit vehicle current collector shoe 4 include a right carbon brush assembly A, a right carbon brush assembly B, a right carbon brush assembly C, and a right carbon brush assembly GND. In the above structure, the left rail transit vehicle current collector shoe 3 and the right rail transit vehicle current collector shoe 4 are mirror-symmetrical left and right. The left and right sides are each composed of four shoes A / B / C / GND. The carbon brush assemblies on the left and right sides can be selected as needed to form the current collector shoe configuration required for the vehicle. For example, B on the left side, A and C on the right side can be selected; or B on the right side, A and C on the left side can be selected; or A on the left side and A on the right side can be used as the positive and negative electrodes respectively. During the above use process, GND must be kept within the grounding rail, and the grounding shoe can keep its position fixed within the grounding rail. Through the connection of the connecting rod 8, the positions of other shoes can be kept fixed. The settings of the spring 7 and the shoe pressure spring 21 keep the carbon brush in contact with the track groove with a certain force, and at the same time have a certain resilience when the shoe bounces.

[0026] The left rail transit vehicle current collector shoe 3 and the right rail transit vehicle current collector shoe 4 of the rail transit vehicle current collector shoe structure each further include a fixing pin 9. Each fixing pin 9 connects a U-shaped carbon brush arm holder 18 and a carbon brush fixing bracket 10. The left rail transit vehicle current collector shoe 3 and the right rail transit vehicle current collector shoe 4 of the rail transit vehicle current collector shoe structure each further include a plurality of carbon brush arm holders 19. Each carbon brush arm holder 19 connects a carbon brush arm 2 and a carbon brush assembly 39. The rail transit vehicle current collector shoe structure further includes a safety stop 17. The safety stop 17 is configured to prevent extreme bouncing of the carbon brush assembly 39. The rail transit vehicle current collector shoe structure further includes a connecting rod 8 for the grounding shoe. In the structure of the present invention, the current collector shoe assembly mounting bracket 1 is used for mounting on the vehicle; the carbon brush arm 2 is used for connecting the carbon brush assembly 39 and the carbon brush fixing bracket 10; the spring 7 is used to apply a fixed pulling force to the carbon brush assembly; the connecting rod 8 is for the fixed connection of the grounding shoe and other grounded shoes; the fixing pin 9 is used for fixing the U-shaped carbon brush arm holder 18 and the carbon brush arm; the carbon brush fixing bracket 10 is used for mounting the carbon brush assembly; the three-phase carbon brush assembly connecting piece 16 is used for connecting between the three-phase carbon brush assemblies; the safety stop 17 is used to prevent extreme bouncing of the carbon brush assembly 39; the U-shaped carbon brush arm holder 18 is used for fixing the carbon brush arm 2 and the carbon brush fixing bracket 10; the carbon brush arm holder 19 is used for connecting the carbon brush arm and the carbon brush assembly; the shoe pressure spring 21 applies a certain pressure from the carbon brush assembly to the carbon brush on the power supply rail; the carbon brush fixing bracket 10 is connected to the current collector shoe assembly mounting bracket 1 through a plurality of carbon brush fixing bracket fixing fasteners I 27, carbon brush fixing bracket fixing fasteners II, and carbon brush fixing bracket fixing fasteners III; the U-shaped carbon brush arm holder 18 has a fixing pin 30.

[0027] The installation bracket 1 of the current collector shoe assembly is installed on the rail transit vehicle. In the above structure, the installation bracket 1 of the current collector shoe assembly is installed on the rail transit vehicle and moves synchronously with the rail vehicle. During the movement of the rail vehicle, the current collector shoe 3 of the rail transit vehicle contacts and acts on the track.

[0028] The carbon brush assemblies 39 of the left current collector shoe 3 of the rail transit vehicle and the carbon brush assemblies 39 of the right current collector shoe 4 of the rail transit vehicle are arranged to form a structure capable of multiple current collector shoe configurations.

[0029] The current collector shoe structure of the rail transit vehicle described in the present invention proposes an integrated current collector shoe structure that can be flexibly configured as needed. 1) Flexible configuration: The current collector shoe is divided into left and right sides and is symmetrically arranged. The carbon brush assembly of the left current collector shoe of the rail transit vehicle includes left carbon brush assembly A, left carbon brush assembly B, left carbon brush assembly C, and left carbon brush assembly GND. The carbon brush assembly of the right current collector shoe of the rail transit vehicle includes right carbon brush assembly A, right carbon brush assembly B, right carbon brush assembly C, and right carbon brush assembly GND. In this way, the left and right sides are each composed of four shoes A / B / C / GND, and the carbon brush assemblies on the left and right sides can be selected according to needs to form the current collector shoe configuration actually required by the vehicle. For example: the left carbon brush assembly B on the left side, the right carbon brush assembly A and right carbon brush assembly C on the right side can be selected; or the right carbon brush assembly B on the right side, the left carbon brush assembly A and left carbon brush assembly C on the left side can be selected. The left carbon brush assembly GND and the right carbon brush assembly GND are both selected on both sides to increase the grounding reliability. 2) Integrated configuration, better stability. The power supply on the line is divided into power supply zones, while the GND on the current collector shoe does not require a power supply zone. The GND will always be within the grounding rail. The grounding shoe is fixedly connected to the current collector shoes of other phases through a connecting rod. At this time, because the grounding shoe slides stably within the grounding rail, the current collector shoes of other phases will also be in relatively fixed positions due to the fixation of the connecting rod and can stably pass through the dead zone. The current collector shoe structure of the rail transit vehicle described in the present invention has a simple structure, realizes three-phase power supply, meets the integrated current collector shoe for three-phase current collection, can select any phase for configuration according to the vehicle power supply needs, has flexible cooperation, better stability, comprehensively improves the use performance and reliability, and reduces the volume.

[0030] The present invention has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A pantograph structure for rail transit vehicles, characterized in that: The mounting bracket (1) of the current collector shoe assembly is connected to the carbon brush fixing bracket (10). The carbon brush arm (2) is connected to the carbon brush assembly (39) through the shoe pressure spring (21). The carbon brush assembly (39) includes carbon brush assembly A (11), carbon brush assembly B (12), carbon brush assembly C (13), and carbon brush assembly GND (14). One end of each spring (7) is connected to a carbon brush assembly (39), and the other end of each spring (7) is connected to the carbon brush fixing bracket (10). Carbon brush assembly A (11), carbon brush assembly B (12), and carbon brush assembly C (13) are connected to the three-phase carbon brush assembly connector (16). Each carbon brush arm holder (19) is connected to a carbon brush arm (2) and a carbon brush assembly (39). The current collector shoe structure of the rail transit vehicle includes a left rail transit vehicle current collector shoe (3) and a right rail transit vehicle current collector shoe (4). The current collector shoe structure of the rail transit vehicle includes a left rail transit vehicle current collector shoe (3) and a right rail transit vehicle current collector shoe (4). The left rail transit vehicle current collector shoe (3) and the right rail transit vehicle current collector shoe (4) are arranged on both sides of the rail of the rail transit. The left rail transit vehicle current collector shoe (3) and the right rail transit vehicle current collector shoe (4) are set to have a symmetric structure. The carbon brush assembly (39) of the left rail transit vehicle current collector shoe (3) includes a left carbon brush assembly A, a left carbon brush assembly B, a left carbon brush assembly C, and a left carbon brush assembly GND. The carbon brush assembly (39) of the right rail transit vehicle current collector shoe (4) includes a right carbon brush assembly A, a right carbon brush assembly B, a right carbon brush assembly C, and a right carbon brush assembly GND. The left and right sides are each composed of four shoes A / B / C / GND. The carbon brush assemblies on the left and right sides are selected as needed to form the current collector shoe configuration actually required by the vehicle, meeting the requirements of the rail transit vehicle. The left rail transit vehicle current collector shoe (3) and the right rail transit vehicle current collector shoe (4) of the current collector shoe structure of the rail transit vehicle also each include a plurality of carbon brush arm holders (19). Each carbon brush arm holder (19) is connected to a carbon brush arm (2) and a carbon brush assembly (39). GND is always within the ground rail at any time. The grounding shoe is fixedly connected to the current collector shoes of other phases through a connecting rod. The grounding shoe slides stably within the ground rail, and the current collector shoes of other phases are fixed in a relatively fixed position by the connecting rod and can stably pass through the dead zone.

2. The pantograph structure of the rail transit vehicle according to claim 1, wherein: The left rail transit vehicle current collector shoe (3) and the right rail transit vehicle current collector shoe (4) of the current collector shoe structure of the rail transit vehicle also each include a fixing pin (9). Each fixing pin (9) is connected to the U-shaped carbon brush arm holder (18) and the carbon brush fixing bracket (10).

3. The pantograph structure of the rail transit vehicle according to claim 1 or 2, characterized in that: The current collector shoe structure of the rail transit vehicle also includes a safety stop (17). The safety stop (17) is set to be a structure that can prevent extreme bouncing of the carbon brush assembly (39).

4. The pantograph structure of the rail transit vehicle according to claim 1 or 2, characterized in that: The current collector shoe structure of the rail transit vehicle also includes the connecting rod (8) of the grounding shoe.

5. The pantograph structure of the rail transit vehicle according to claim 1 or 2, characterized in that: The mounting bracket (1) of the current collector shoe assembly is mounted on the rail transit vehicle.

6. The pantograph structure of the rail transit vehicle according to claim 1 or 2, characterized in that: The carbon brush assemblies (39) of the left rail vehicle current collector shoe (3) and the carbon brush assemblies (39) of the right rail vehicle current collector shoe (4) are arranged to form a structure capable of forming multiple sets of current collector shoe configurations.

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