Current collection device of rail transit vehicle

Abstract

The invention discloses a current collecting device of a rail transit vehicle, which is characterized in that an A-phase current collecting shoe, a C-phase current collecting shoe and a G-phase grounding shoe are respectively arranged on two right side current collector assemblies at the front and rear sides of the vehicle from top to bottom; a B-phase collector shoe and a G-phase ground shoe are arranged on two left side collector assemblies on the front side and the rear side of the vehicle from top to bottom respectively. And the collector shoe and the grounding shoe are in contact with an electric conductor on the power rail and can slide on the electric conductor. By adopting the technical scheme, the collector shoe assembly which does not work and a matched cable thereof are removed, the structure is simpler, and the cost is lower; meanwhile, after the vehicle enters the power rail section, the movement of the collector shoe and the grounding shoe is limited by the guide rail, and the work is stable; according to the utility model, the current collection shoe assembly which does not work is not in a free state, thereby eliminating the possible collision and pulling risks caused by the redundant current collection shoe assembly which does not work and the cable, reducing the fault rate, and improving the working reliability.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit vehicles, and relates to a rubber-wheeled automatic guided rail transit system. More specifically, the present invention relates to a rail transit vehicle power collection device. Background Art

[0002] There are two ways to power rail transit vehicles, one is DC power supply and the other is AC power supply. The APM300R vehicle belongs to the field of rubber-wheeled automatic guided rail transit systems. It uses AC600V three-phase power supply and requires U / V / W / GND three-phase power supply.

[0003] The APM300R vehicle collector device (i.e., collector) in the prior art adopts an integrated design. A group of collectors contains two left and right parts. The left and right parts are symmetrically designed. Each part is equipped with four collector shoes A / B / C / G, which correspond to the three-phase power supply and grounding U / V / W / GND respectively, so that the vehicle obtains power from the power rail for use.

[0004] However, in order to make full use of the space under the vehicle, the A, B, C three-phase power rails and the G-phase ground rail of the power rail are arranged on both sides of the rail according to a fixed layout plan, such as A, C, G phases on one side and B, G phases on the other side. In this way, some collector shoes on each collector are not working. For example, in the corresponding power rail layout, the B-phase collector shoe on one side and the A and C-phase collector shoes on the other side are not working. These non-contacting collector shoes and their accompanying cables cause material waste, occupy the limited interface space between the collector and the power rail, and also increase the risk of failure.

[0005] The collector shoe that is not in contact with the work is in a free state because it is not restricted by the power rail slot. The collector shoe and cable are prone to friction and pulling with the power rail and its bracket.

[0006] Using keywords such as "track; vehicle; power collection" to search existing public technical literature, the following search results were obtained:

[0007] 1. Chinese patent document: "Current collector shoe, rail vehicle and rail transit system having the same", patent (application) number: 201810118288; the technical solution recorded therein is:

[0008] "A collector shoe, a rail vehicle and a rail transit system having the same, wherein the collector shoe comprises: a sliding seat assembly, a sliding frame, a charging knife assembly and an elastic reset structure, wherein the sliding frame is slidably connected to the sliding seat assembly in the transverse direction; the charging knife assembly is connected to the sliding frame; the elastic reset structure is respectively connected to the sliding frame and the sliding seat assembly, and the elastic reset structure often drives the sliding frame to reset to an initial position";

[0009] The technical effects recorded are:

[0010] "The collector shoe can adapt to the deviation of the vehicle body and can automatically reset to the initial position, thereby providing compensation when the vehicle body deviates and returning to the normal position when the vehicle body is not deviated. This can reduce the probability of blade or rail deviating accidents and can make the charging blade assembly and the charging rail form a better coordination state, which can improve charging stability."

[0011] 2. Chinese patent document: "Railway vehicle including multiple current collectors and method for operating a rail vehicle", patent (application) number: 202280015613.5; the technical solution recorded therein is:

[0012] The rail vehicle comprises a plurality of current collectors, each of which electrically connects the rail vehicle to an energy supply network; a plurality of converters, including a first converter and a second converter, each of which is respectively assigned to a designated one of the plurality of current collectors and converts a direct current on an input side of the converter into an alternating current on an output side of the converter by repeatedly switching on and off a converter switch according to phase information about a phase position of an alternating voltage and / or a phase current on an output side of the converter; an alternating current line electrically connects the output side of the converter, wherein when the rail vehicle passes through a segmentation point of the energy supply network, the alternating current line is connected to the output side of the converter via the first converter. "When an energy supply to an input side of a first converter from a designated collector of a first converter is interrupted, a. detecting the interruption; b. stopping the conversion of a direct current on the input side of the first converter into an alternating current on the output side of the first converter; c. continuing to process phase information about the phase position of the alternating voltage and / or alternating current on the output side of the first converter during the interruption period; d. detecting the return of energy supply from the energy supply network to the input side of the first converter; and e. continuing to process the phase information during the interruption period, the processing result of which is used to restart the conversion of the direct current on the input side of the first converter into the alternating current on the output side of the first converter."

[0013] The technical effects recorded are:

[0014] "Small time gaps for suspending the generation of alternating current can be provided at the segmentation points, and only a small amount of construction work is required; there is no need to connect the electrical lines on the input sides of different collectors, and after the energy supply from the energy supply network to the input side of the current converter through the designated collector is restored, alternating current can be immediately generated on the output side of the current converter in sync with the other alternating currents fed into the alternating current line."

[0015] However, the technical solutions recorded in the above-mentioned technical documents and the existing publicly applied related technical solutions have not been able to solve the problems and defects existing in the prior art, such as "the non-contact collector shoes and their accompanying cables cause material waste" and "the non-contact collector shoes and cables are prone to friction and pulling failures with the power supply rails and their brackets". Summary of the invention

[0016] The present invention provides a rail transit vehicle current collector, which aims to save non-working current collector shoes, thereby not only saving costs but also avoiding problems caused by insufficient electrical safety distance.

[0017] In order to achieve the above object, the technical solution adopted by the present invention is:

[0018] The rail transit vehicle current collector device of the present invention comprises a rail transit vehicle comprising a bogie and a guide wheel, wherein the guide wheel is guided by a guide rail; a power rail fixedly connected to the guide rail is arranged above the guide rail; two bogies on the left and right sides in front of each vehicle and two bogies on the left and right sides in the rear are respectively equipped with a group of collector assemblies; on the two right collector assemblies at the front and rear of the vehicle, two-phase A and C collector shoes and a G-phase grounding shoe are respectively arranged from top to bottom; on the two left collector assemblies at the front and rear of the vehicle, a B-phase collector shoe and a G-phase grounding shoe are respectively arranged from top to bottom; the collector shoes and the grounding shoes are both in contact with the conductor on the power rail and can slide thereon.

[0019] The collector assembly is provided with a collector mounting bracket, and the collector mounting bracket mounts the collector assembly on a vehicle bogie.

[0020] An A-phase front swing arm is arranged on the A-phase collector shoe assembly at the front right side of the vehicle; an A-phase rear swing arm is arranged on the A-phase collector shoe assembly at the rear right side of the vehicle; a U-shaped joint is arranged on the column of the bogie; the A-phase collector shoe assembly is provided with a mounting knuckle; the A-phase front swing arm and the A-phase rear swing arm are respectively connected to the U-shaped joint and the mounting knuckle.

[0021] A C-phase front swing arm is arranged on the C-phase collector shoe assembly at the front right side of the vehicle; a C-phase rear swing arm is arranged on the C-phase collector shoe assembly at the rear right side of the vehicle; a U-shaped joint is arranged on the column of the bogie; the C-phase collector shoe assembly is provided with a mounting knuckle; the C-phase front swing arm and the C-phase rear swing arm are respectively connected to the U-shaped joint and the mounting knuckle.

[0022] A G-phase front swing arm is arranged on the ground shoe assembly at the front right side of the vehicle; a G-phase rear swing arm is arranged on the ground shoe assembly at the rear right side of the vehicle; a U-shaped joint is arranged on the column of the bogie; a grounding steering knuckle is arranged on the ground shoe assembly; the G-phase front swing arm and the G-phase rear swing arm are respectively connected to the U-shaped joint and the grounding steering knuckle.

[0023] The A-phase collector shoe assembly and the C-phase collector shoe assembly are connected via a collector shoe assembly connector.

[0024] The A-phase collector shoe assembly is connected to the ground shoe assembly via an AG connecting rod mechanism.

[0025] A B-phase front swing arm is arranged on the B-phase collector shoe assembly at the left front of the vehicle; a B-phase rear swing arm is arranged on the B-phase collector shoe assembly at the left rear of the vehicle; a U-shaped joint is arranged on the column of the bogie; a steering knuckle is arranged on the A-phase collector shoe assembly; the B-phase front swing arm and the B-phase rear swing arm are respectively connected to the U-shaped joint and the steering knuckle.

[0026] The upright column of the bogie is connected to the front end of the collector shoe and the G-phase ground shoe through a tension spring, and the tension spring is used to provide downward pressure toward the center of the vehicle to the collector shoe assembly and the G-phase ground shoe.

[0027] An anti-loosening device assembly is arranged on the column of the bogie, and the anti-loosening device assembly is used to fix each tension spring and is provided with a hook hole structure for adjusting the upper and lower positions of the ends of the tension springs.

[0028] A safety stop is provided on each phase collector shoe, and the safety stop is used to prevent extreme bouncing of the collector shoe assembly.

[0029] A cable fixing bracket is arranged at the rear of the current collector assembly, and the cable fixing bracket is used for installing and fixing the cables of the current collector assembly.

[0030] The grounding shoe assembly and the B-phase collector shoe assembly are connected through a front connecting rod mechanism.

[0031] A parallel pull rod mechanism is arranged on the B phase collector shoe assembly.

[0032] Each front and rear swing arm is provided with a C-shaped groove, and the C-shaped groove is used for wiring and fixing the collector shoe cable.

[0033] The present invention adopts the above-mentioned technical scheme. Compared with the prior art, the non-working collector shoe assembly and its supporting cables are removed, and the structure is simpler and the cost is lower. At the same time, after the vehicle enters the power rail section, the collector shoes and grounding shoes on each side enter the corresponding power supply rail and grounding rail guide grooves of the power rail respectively, and all sliding shoes, including the movement of the collector shoes and the grounding shoes, are restricted by the guide rails, and the operation is stable. The non-working collector shoe assembly will not be in a free state, eliminating the risk of friction and pulling caused by the presence of excess non-working collector shoe assemblies and cables, reducing the failure rate and improving working reliability. In addition, a limit device is provided at the cable installation end of each collector shoe, which can keep the working posture of each collector shoe stable after the cable installation and adjustment, and prevent the collector shoe carbon brush from wearing unevenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The contents shown in the attached drawings and the symbols in the drawings are briefly described as follows:

[0035] Figure 1 It is a schematic structural diagram of a rail transit vehicle current collector of the present invention;

[0036] Figure 2 It is a three-dimensional schematic diagram of the right structure of the front current collector assembly of the present invention;

[0037] Figure 3-1 for Figure 2 A front view of the structure shown;

[0038] Figure 3-2 for Figure 3-1 A schematic left side view of the structure shown;

[0039] Figure 3-3 for Figure 3-1 a schematic rear view of the structure shown;

[0040] Figure 4 It is a three-dimensional schematic diagram of the left structure of the front current collector assembly of the present invention;

[0041] Figure 5-1 for Figure 4 A front view of the structure shown;

[0042] Figure 5-2 for Figure 5-1 A schematic left side view of the structure shown;

[0043] Figure 5-3 for Figure 5-1 a schematic rear view of the structure shown;

[0044] Figure 6 Schematic diagram of the application scenario of the novel current collecting device of the present invention.

[0045] The markings in the figure are:

[0046] 1. Collector mounting bracket, 2. A-phase front swing arm, 3. A-phase rear swing arm, 4. C-phase front swing arm, 5. C-phase rear swing arm, 6. Right G-phase front swing arm, 7. Right G-phase rear swing arm, 8. U-shaped joint, 9. Install steering knuckle, 10. A-phase collector shoe assembly, 11. C-phase collector shoe assembly, 12. Collector assembly connector, 13. Grounding shoe assembly, 14. Grounding steering knuckle, 15. AG connecting rod mechanism, 16. Extension spring, 17. Anti-loosening device assembly, 18. Safety stop, 19. Cable fixing bracket, 20. B-phase front swing arm, 21. B-phase rear swing arm, 22. B-phase collector shoe assembly, 23. BG connecting rod mechanism, 24. Parallel pull rod mechanism, 25. Guide wheel, 26. Power rail, 27. Guide rail, 28. Bogie. DETAILED DESCRIPTION

[0047] The specific implementation modes of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0048] like Figures 1 to 6 The structure of the present invention is a current collecting device for a rail transit vehicle.

[0049] like Figure 6 As shown, the rail transit vehicle includes a bogie 28 and a guide wheel 25, and the guide wheel 25 is guided by a guide rail 27; a power rail 26 fixedly connected to the guide rail 27 is arranged above the guide rail 27; and a group of collector assemblies are installed on the two bogies 28 on the left and right sides in front of each vehicle and the two bogies 28 on the left and right sides in the rear.

[0050] In order to solve the problems existing in the prior art and overcome its defects, realize the invention purpose of saving the non-working collector shoe, not only saving costs, but also avoiding the problems caused by insufficient electrical safety distance, the technical solution adopted by the present invention is:

[0051] like Figures 1 to 6 As shown, the rail transit vehicle collector device of the present invention has A and C phase collector shoes and G phase grounding shoes respectively arranged on the two right collector assemblies at the front and rear of the vehicle from top to bottom; B phase collector shoes and G phase grounding shoes are respectively arranged on the two left collector assemblies at the front and rear of the vehicle from top to bottom; the collector shoes and grounding shoes are both in contact with the conductor on the power rail 26 and can slide thereon.

[0052] The collector device of the present invention optimizes its structure according to the power supply rail layout scheme. Compared with the prior art, it removes the non-working collector shoe assembly and its supporting cables, and has a simpler structure and lower cost. At the same time, it also increases the distance between the collector shoes of each phase to avoid problems caused by insufficient electrical safety distance. After the vehicle equipped with the new collector device enters the power rail 26, the collector shoes and grounding shoes on each side enter the corresponding power supply rail and grounding rail guide grooves of the power rail 26 respectively. All collector shoes (including collector shoes and grounding shoes) are working shoes, and their movements are restricted by the guide rails, so they work stably. There will be no non-working collector shoe assemblies in a free state, eliminating the risks of friction and pulling that may be caused by the presence of excess non-working collector shoe assemblies and cables, reducing the failure rate and improving working reliability. In addition, a limit device is provided at the cable installation end of each collector shoe, which can keep the working posture of each collector shoe stable after the cable installation and adjustment, and prevent the carbon brush of the collector shoe from wearing unevenly.

[0053] like Figure 1 As shown, the current collector device of the present invention comprises a group of current collector components installed on each front and rear bogie of each vehicle, with a total of two groups of four current collectors. Each component comprises a left and a right part respectively. The front and rear components are in a mirror relationship.

[0054] Among them, H1 is the front right current collector, H2 is the front left current collector, R1 is the rear right current collector, and R2 is the rear left current collector.

[0055] The specific analysis is as follows:

[0056] like Figure 3-2 As shown: the collector assembly is provided with a collector mounting bracket 1, and the collector mounting bracket 1 is used to mount the collector assembly on the vehicle bogie 28.

[0057] Front assembly right collector assembly Figure 2 , Figure 3-1 , Figure 3-2 and Figure 3-3 As shown:

[0058] An A-phase front swing arm 2 is arranged on the A-phase collector shoe assembly 10 at the front right side of the vehicle; an A-phase rear swing arm 3 is arranged on the A-phase collector shoe assembly 10 at the rear right side of the vehicle; a U-shaped joint 8 is arranged on the column of the bogie 28; the A-phase collector shoe assembly 10 is provided with an installation knuckle 9; the A-phase front swing arm 2 and the A-phase rear swing arm 3 are respectively connected to the U-shaped joint 8 and the installation knuckle 9.

[0059] The A-phase front swing arm 2 and the A-phase rear swing arm 3 are used to connect the U-shaped joint 8 and the mounting knuckle 9 of the A-phase collector shoe assembly 10 .

[0060] The right part of the front collector assembly is mainly composed of the following parts:

[0061] A C-phase front swing arm 4 is arranged on the C-phase collector shoe assembly 11 at the front right side of the vehicle; a C-phase rear swing arm 5 is arranged on the C-phase collector shoe assembly 11 at the rear right side of the vehicle; a U-shaped joint 8 is arranged on the column of the bogie 28; the C-phase collector shoe assembly 11 is provided with an installation knuckle 9; the C-phase front swing arm 4 and the C-phase rear swing arm 5 are respectively connected to the U-shaped joint 8 and the installation knuckle 9.

[0062] The C-phase front swing arm 4 and the C-phase rear swing arm 5 are used to connect the U-shaped joint 8 and the mounting knuckle 9 of the C-phase collector shoe assembly 11 .

[0063] A G-phase front swing arm 6 is arranged on the ground shoe assembly 13 at the front right side of the vehicle; a G-phase rear swing arm 7 is arranged on the ground shoe assembly 13 at the rear right side of the vehicle; a U-shaped joint 8 is arranged on the column of the bogie 28; a grounding knuckle 14 is arranged on the ground shoe assembly 13; the G-phase front swing arm 6 and the G-phase rear swing arm 7 are respectively connected to the U-shaped joint 8 and the grounding knuckle 14.

[0064] The G-phase front swing arm 6 and the G-phase rear swing arm 7 are used to connect the U-shaped joint 8 and the mounting knuckle 14 of the G-phase ground shoe assembly 13 .

[0065] like Figure 3-2 As shown:

[0066] The A-phase collector shoe assembly 10 and the C-phase collector shoe assembly 11 are connected via a collector shoe assembly connector 12 .

[0067] The collector shoe assembly connector 12 is used to connect the A-phase collector shoe assembly 10 and the C-phase collector shoe assembly 11;

[0068] The A-phase collector shoe assembly 10 is connected to the ground shoe assembly 13 via an AG connecting rod mechanism 15 .

[0069] The AG connecting rod mechanism 15 is used to connect the grounding shoe assembly 13 and the A-phase collector shoe assembly 10 .

[0070] like Figure 4 , Figure 5-1 , Figure 5-2 and Figure 5-3 As shown:

[0071] A B-phase front swing arm 20 is arranged on the B-phase collector shoe assembly 22 at the left front part of the vehicle; a B-phase rear swing arm 21 is arranged on the B-phase collector shoe assembly 22 at the left rear part of the vehicle; a U-shaped joint 8 is arranged on the column of the bogie 28; the A-phase collector shoe assembly 10 is provided with an installation knuckle 9; the B-phase front swing arm 20 and the B-phase rear swing arm 21 are respectively connected to the U-shaped joint 8 and the installation knuckle 9.

[0072] The B-phase front swing arm 20 and the B-phase rear swing arm 21 are used to connect the U-shaped joint 8 and the mounting knuckle 9 of the B-phase collector shoe assembly 22 .

[0073] The components on the left side of the front include the B-phase collector shoe and the G-phase grounding shoe, and the components on the right include the A-phase and C-phase collector shoes and the G-phase grounding shoe. Due to functional and grounding safety requirements, each collector must be equipped with a G-phase grounding shoe.

[0074] like Figure 3-3 As shown:

[0075] The upright column of the bogie 28 is connected to the front end of the collector shoe and the G-phase ground shoe through a tension spring 16, and the tension spring 16 is used to provide downward pressure toward the center of the vehicle to each collector shoe assembly and the G-phase ground shoe.

[0076] The column of the bogie 28 is provided with an anti-loosening assembly 17 , which is used to fix each tension spring 16 and is provided with a hook hole structure for adjusting the upper and lower positions of the ends of the tension spring 16 .

[0077] The anti-loosening device assembly 17 is used to fix each tension spring 16 and can adjust its up and down position.

[0078] The tension spring 16 provides contact pressure between the sliding shoe and the power rail 26, and cooperates with the front and rear swing arms to follow the lateral and vertical movement of the vehicle, always keeping each sliding shoe in the corresponding guide groove of the power rail 26 to actually provide continuous and stable power supply.

[0079] A safety stopper 18 is provided on each phase collector shoe, and the safety stopper 18 is used to prevent extreme bouncing of the collector shoe assembly.

[0080] A cable fixing bracket 19 is provided at the rear of the collector assembly, and the cable fixing bracket 19 is used for installing and fixing the cables of the collector assembly.

[0081] like Figure 5-2 As shown:

[0082] The ground shoe assembly 13 and the B-phase collector shoe assembly 22 are connected via a front link mechanism 23 .

[0083] The front connecting rod mechanism 23 is used to connect the grounding shoe assembly 13 and the B-phase collector shoe assembly 22 .

[0084] like Figure 5-3 As shown:

[0085] A parallel pull rod mechanism 24 is provided on the B-phase collector shoe assembly 22 .

[0086] like Figures 3-1 to 3-3 , Figures 5-1 to 5-3As shown, the main structure of the left collector assembly of the front component is basically the same as that of the right component, and both are equipped with a grounding shoe assembly 13. The main difference is that the right component has two sets of collector shoe assemblies, namely, the A-phase collector shoe assembly 10 and the C-phase collector shoe assembly 11; while the left component has only one set of collector shoe assemblies, namely, the B-phase collector shoe assembly 22, and the number of tension springs 16 is also reduced accordingly. In order to ensure force balance and stable operation, a parallel pull rod mechanism 24 is added.

[0087] Each front and rear swing arm is provided with a C-shaped groove, and the C-shaped groove is used for wiring and fixing the collector shoe cable.

[0088] The front swing arms 2, 4 and 6, and the front swing arm 22 are all provided with C-shaped grooves for wiring and fixing the collector cables.

[0089] In addition, a limit device is set at the cable installation end of each collector shoe, which can keep the working posture of each collector shoe stable after the cable installation and adjustment, and prevent the collector shoe carbon brush from eccentric wear.

[0090] The usage scenarios of the present invention are as follows:

[0091] like Figure 6 As shown, in order to make full use of the space under the vehicle, the A, B, C three-phase power supply rails and the G-phase grounding rail of the power rail 26 are arranged on both sides of the guide rail according to a fixed layout scheme, such as A, C, G phases on one side and B, G phases on the other side.

[0092] After the vehicle equipped with the novel current collecting device enters the power rail 26 , the current collecting shoes and grounding shoes on each side enter the corresponding power supply rail and grounding rail guide grooves of the power rail 26 .

[0093] The vehicle can obtain electric power for use from the three-phase power supply rails A, B, and C of the power rail 26 through the three-phase collector shoes of the collector devices A, B, and C.

[0094] When the vehicle passes through the switch, the collectors in front and behind the vehicle can complete continuous power collection operation.

[0095] After the vehicle goes online, each collector grounding shoe is always located in the guide groove of the grounding rail. When passing through the power supply rail disconnection area such as the switch area, although the collector shoes of the collector are separated from the power supply rail, they will still maintain the correct relative height position due to the limitation of the front connecting rod mechanism connected to the grounding shoe. When reaching the end of the disconnection area, they will be re-introduced into the power supply rail through the guide elbow of the power supply rail to resume power supply.

[0096] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using 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 rail transit vehicle current collector, the rail transit vehicle comprising a bogie (28) and a guide wheel (25), wherein the guide wheel (25) is limited and guided by a guide rail (27); a power rail (26) fixedly connected to the guide rail (27) is arranged above the guide rail (27); two bogies (28) on the left and right sides in front of each vehicle and two bogies (28) on the left and right sides in the rear of each vehicle are respectively installed with a group of current collector components, characterized in that: On the two right collector assemblies at the front and rear of the vehicle, A and C phase collector shoes and a G phase grounding shoe are respectively arranged from top to bottom; on the two left collector assemblies at the front and rear of the vehicle, B phase collector shoes and G phase grounding shoes are respectively arranged from top to bottom; the collector shoes and grounding shoes are both in contact with the conductor on the power rail (26) and can slide thereon.

2. The rail transit vehicle current collector according to claim 1, characterized in that: The current collector assembly is provided with a current collector mounting bracket (1), and the current collector mounting bracket (1) mounts the current collector assembly on a vehicle bogie (28).

3. The rail transit vehicle current collector according to claim 1, characterized in that: An A-phase front swing arm (2) is arranged on the A-phase collector shoe assembly (10) at the front right side of the vehicle; an A-phase rear swing arm (3) is arranged on the A-phase collector shoe assembly (10) at the rear right side of the vehicle; a U-shaped joint (8) is arranged on the column of the bogie (28); the A-phase collector shoe assembly (10) is provided with a mounting knuckle (9); the A-phase front swing arm (2) and the A-phase rear swing arm (3) are respectively connected to the U-shaped joint (8) and the mounting knuckle (9).

4. The rail transit vehicle current collector according to claim 3, characterized in that: A C-phase front swing arm (4) is arranged on the C-phase collector shoe assembly (11) at the front right side of the vehicle; a C-phase rear swing arm (5) is arranged on the C-phase collector shoe assembly (11) at the rear right side of the vehicle; a U-shaped joint (8) is arranged on the column of the bogie (28); the C-phase collector shoe assembly (11) is provided with a mounting knuckle (9); the C-phase front swing arm (4) and the C-phase rear swing arm (5) are respectively connected to the U-shaped joint (8) and the mounting knuckle (9).

5. The rail transit vehicle current collector according to claim 3, characterized in that: A G-phase front swing arm (6) is arranged on a grounding shoe assembly (13) at the front right side of the vehicle; a G-phase rear swing arm (7) is arranged on a grounding shoe assembly (13) at the rear right side of the vehicle; a U-shaped joint (8) is arranged on the column of the bogie (28); a grounding knuckle (14) is arranged on the grounding shoe assembly (13); the G-phase front swing arm (6) and the G-phase rear swing arm (7) are respectively connected to the U-shaped joint (8) and the grounding knuckle (14).

6. The rail transit vehicle current collector according to claim 4, characterized in that: The A-phase collector shoe assembly (10) and the C-phase collector shoe assembly (11) are connected via a collector shoe assembly connector (12).

7. The rail transit vehicle current collector according to claim 5, characterized in that: The A-phase collector shoe assembly (10) is connected to the ground shoe assembly (13) via an AG connecting rod mechanism (15).

8. The rail transit vehicle current collector according to claim 1, characterized in that: A B-phase front swing arm (20) is arranged on the B-phase collector shoe assembly (22) at the left front of the vehicle; a B-phase rear swing arm (21) is arranged on the B-phase collector shoe assembly (22) at the left rear of the vehicle; a U-shaped joint (8) is arranged on the column of the bogie (28); the A-phase collector shoe assembly (10) is provided with a mounting knuckle (9); the B-phase front swing arm (20) and the B-phase rear swing arm (21) are respectively connected to the U-shaped joint (8) and the mounting knuckle (9).

9. The rail transit vehicle current collector according to claim 1, characterized in that: The column of the bogie (28) is connected to the front end of the collector shoe and the G-phase ground shoe through a tension spring (16), and the tension spring (16) is used to provide downward pressure toward the center of the vehicle to the collector shoe assembly and the G-phase ground shoe.

10. The rail transit vehicle current collector according to claim 9, characterized in that: An anti-loosening assembly (17) is arranged on the column of the bogie (28), and the anti-loosening assembly (17) is used to fix each tension spring (16), and is provided with a hook hole structure for adjusting the upper and lower positions of the ends of the tension springs (16).

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