Track power supply system

Abstract

The utility model discloses a track power supply system, and relates to the technical field of track power supply. The device comprises a plurality of supporting columns, connecting plates are fixedly connected to one sides of the supporting columns, upper pull rods are symmetrically and fixedly connected to one sides of the connecting plates, cantilevers are symmetrically and obliquely hinged to one sides of the connecting plates, and the ends, away from the connecting plates, of the cantilevers are hinged to the upper pull rods. The device is provided with the tensioning assembly, an electric telescopic rod is started to push an adjusting block to drive a tensioning wheel and a contact line to move up and down in a cavity, so that the tension of the contact line can be remotely adjusted without manual operation of a worker, and the contact line can be always kept stable; good contact between the contact line and the train pantograph is ensured, so that power transmission efficiency is improved, abrasion of the contact line is reduced, breakage or excessive abrasion of the contact line caused by too large or too small tension is avoided, and the service life of the contact line is prolonged.

Description

Technical Field

[0001] The present application relates to the field of track power supply technology, and in particular to a track power supply system. Background Art

[0002] The track power supply system is one of the important methods of railway electrification, and is particularly commonly used in mass transit systems. This system enables the collector of an electric train to contact and slide on a live track, thereby obtaining electricity for running. The track power supply system has the advantages of saving land, reducing noise and interference, saving energy, and reducing pollution.

[0003] Existing rail power supply systems generally use urban rail power supply contact networks for power supply, providing power to trains through wires suspended above the tracks. This technology is relatively mature and widely used outdoors. It is a special power supply line erected along the tracks in urban rail transit, responsible for transmitting power from the substation to the vehicles.

[0004] However, during daily use, the contact line will be affected by the vibration of the rail train, causing a certain deformation. Especially in the summer or winter when there is thermal expansion and contraction, the contact line will usually sag or become tight. At this time, staff need to go to the site to manually adjust the position of the contact line, which is extremely inconvenient and also greatly affects the power supply quality of the rail train. For this reason, the present application provides a rail power supply system. Utility Model Content

[0005] The purpose of this application is to solve the problem that when thermal expansion and contraction occur in summer or winter, the contact line usually sags or becomes tight, and workers need to go to the site to manually adjust the position of the contact line, which is extremely inconvenient. This application provides a rail power supply system.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A rail power supply system comprises a plurality of support columns, one side of each of the support columns is fixedly connected to a connecting plate, one side of each of the connecting plates is symmetrically fixedly connected to an upper pull rod, one side of each of the connecting plates is symmetrically and tiltedly hinged with a wrist arm, one end of the wrist arm away from the connecting plate is hinged to the upper pull rod, one end of the upper pull rod away from the connecting plate is fixedly connected to a load-bearing cable, the bottom of the load-bearing cable is fixedly connected to a suspension string, the bottom of the wrist arm is hinged with a positioning tube, the end of the suspension string away from the load-bearing cable is fixedly connected to the positioning tube, the bottom of one end of the positioning tube is fixedly connected to a positioning ring, the tops of the plurality of support columns are fixedly connected to a blocking plate, the bottom of the blocking plate is installed with a tensioning assembly, the two adjacent sides of the plurality of support columns are fixedly connected to a connecting block, and the interior of the connecting block is installed with an adjustment assembly.

[0008] By adopting the above technical solution, during daily use, the vibration caused by the running of rail trains and the thermal expansion and contraction in summer and winter will cause the contact line to deform, resulting in sagging or tension. At this time, the tensioning assembly at the bottom of the blocking plate can be started. The tensioning assembly can be used to remotely adjust the tension of the contact line without manual operation by the staff, so that the contact line can always remain stable, ensuring good contact between the contact line and the train pantograph. In addition, during daily use, birds usually stay on the contact line, and their excrement may fall on the contact line, causing the contact line to become dirty. Therefore, the adjustment assembly can be continuously started and moved back and forth on the contact line through the adjustment assembly to drive away the birds. The protection of the blocking plate and the connecting block can prevent the excrement from falling directly on the contact line, thereby reducing the occurrence of power supply line short circuit, tripping and other faults, allowing the equipment to operate normally.

[0009] Furthermore, a support rod is hinged on the outer wall of the upper pull rod, and one end of the support rod away from the upper pull rod is hinged to the outer wall of the wrist arm.

[0010] By adopting the above technical solution, the connection stability between the upper pull rod and the wrist arm can be effectively improved through the support rod, reducing the risk of the upper pull rod and the wrist arm shaking and falling off under the influence of bad weather.

[0011] Furthermore, arc extinguishing coils are fixedly connected to the outer walls of the upper pull rod and the arm.

[0012] By adopting the above technical solution, the arc extinguishing coil can be set to control and eliminate the arc when it is generated, so as to prevent the arc from spreading and causing damage to the contact line.

[0013] Furthermore, the tensioning assembly includes a fixed block fixedly connected to the bottom of the blocking plate, a cavity is opened inside the fixed block, an electric telescopic rod is fixedly connected to the internal top surface of the cavity, the output end of the electric telescopic rod is fixedly connected to a connecting column, the end of the connecting column away from the electric telescopic rod is fixedly connected to an adjusting block, and one side of the adjusting block is fixedly connected to a tensioning wheel.

[0014] By adopting the above technical solution, the position of the tensioning wheel and the contact line can be adjusted together by moving the adjustment block up and down, so that the tension of the contact line can be adjusted remotely without manual operation by the staff, so that the contact line can always remain stable.

[0015] Furthermore, a sliding groove is provided on one side of the fixed block, and the adjusting block is T-shaped, and the adjusting block is slidably connected in the sliding groove.

[0016] By adopting the above technical solution, the adjustment block is pushed to move up and down inside the cavity according to the guidance of the sliding groove.

[0017] Furthermore, the adjustment component includes a motor fixedly connected to one side of the connecting block, a screw rod is rotatably connected to the inside of the connecting block, the output end of the motor is fixedly connected to one end of the screw rod, a moving block is threadedly connected to the screw rod, and a resistance wheel is rotatably connected to the bottom of the moving block.

[0018] By adopting the above technical solution, the motor is started to drive the screw rod to rotate, so that the reciprocating resistance wheel can drive away the birds on the contact line and prevent the birds from staying on the contact line.

[0019] Furthermore, a guide groove is provided at the bottom of the connecting block, and the moving block is slidably connected in the guide groove.

[0020] By adopting the above technical solution, as the screw rod rotates, the moving block will move back and forth inside the connecting block according to the guidance of the guide groove.

[0021] Furthermore, each of the plurality of support columns is fixedly connected with an embedded part.

[0022] By adopting the above technical solution, the bottom of the support column and the embedded parts are buried underground, so that the support column can be more stable when in use and the possibility of tilting and falling is reduced.

[0023] In summary, this application has at least one of the following beneficial effects:

[0024] 1. This application is provided with a tensioning assembly, which drives the tensioning wheel and the contact wire to move up and down inside the cavity by starting the electric telescopic rod to push the adjustment block. In this way, the tension of the contact wire can be adjusted remotely without manual operation by the staff, so that the contact wire can always remain stable, ensuring good contact between the contact wire and the train pantograph, thereby improving the power transmission efficiency, reducing the wear of the contact wire, and avoiding breakage or excessive wear of the contact wire due to excessive or insufficient tension, thereby extending its service life.

[0025] 2. The present application is provided with an adjustment component, which drives the screw to rotate by starting the motor, thereby driving the contact wheel to move together. The reciprocating contact wheel can drive away birds on the contact line to prevent the birds from staying on the contact line, and through the protection of the blocking plate and the connecting block, the excrement will not fall directly on the contact line, thereby reducing the occurrence of power supply line short circuit, tripping and other faults, so that the equipment can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the tensioning assembly in this application.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment component in this application.

[0030] Description of reference numerals:

[0031] 1. Support column; 2. Connecting plate; 3. Upper pull rod; 4. Arm; 5. Load-bearing cable; 6. Hanging string; 7. Positioning tube; 8. Positioning ring; 9. Support rod; 10. Arc suppression coil; 11. Blocking plate; 12. Fixed block; 13. Cavity; 14. Electric telescopic rod; 15. Connecting column; 16. Adjusting block; 17. Tensioning pulley; 18. Slide; 19. Connecting block; 20. Motor; 21. Screw; 22. Moving block; 23. Interference wheel; 24. Guide groove; 25. Deep embedded parts. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a rail power supply system.

[0034] Reference Figure 1 and Figure 2 A rail power supply system includes a plurality of support columns 1, each of which is fixedly connected to a connecting plate 2 on one side, and an upper pull rod 3 is symmetrically fixedly connected to one side of the connecting plate 2. An arm 4 is symmetrically and tiltedly hinged on one side of the connecting plate 2. The end of the arm 4 away from the connecting plate 2 is hinged to the upper pull rod 3, and the end of the upper pull rod 3 away from the connecting plate 2 is fixedly connected to a load-bearing cable 5. The bottom of the load-bearing cable 5 is fixedly connected to a suspension string 6. A positioning tube 7 is hinged to the bottom of the arm 4, and the end of the suspension string 6 away from the load-bearing cable 5 is fixedly connected to the positioning tube 7. The bottom of one end of the positioning tube 7 is fixedly connected to a positioning ring 8. The tops of the plurality of support columns 1 are fixedly connected to a blocking plate 11, and a tensioning assembly is installed at the bottom of the blocking plate 11. The adjacent two sides of the plurality of support columns 1 are fixedly connected to a connecting block 19, and an adjustment assembly is installed inside the connecting block 19. Deep-buried parts 25 are fixedly connected to the plurality of support columns 1.

[0035] During use, first, multiple support columns 1 are evenly installed and fixed on both sides of the track according to construction requirements. When installing and fixing the support columns 1, the bottom of the support columns 1 and the embedded parts 25 can be buried underground, so that the support columns 1 can be more stable during use and the possibility of tilting and tilting can be reduced. Then the contact line is passed through the positioning ring 8 and around the tensioning assembly. The provided suspension string 6 and positioning tube 7 can make the contact line and the pantograph slide on the top of the track train within the working range, and the contact line is set in a zigzag shape to complete the erection of the contact network. In daily use, the vibration generated by the running of the track train and the thermal expansion and contraction in summer and winter will cause the contact line to deform, resulting in sagging or tension. At this time, the tensioning assembly at the bottom of the blocking plate 11 can be started, and the tensioning assembly can be used without the need for work. The operator can manually operate and remotely adjust the tension of the contact line so that the contact line can always remain stable, ensuring good contact between the contact line and the train pantograph, thereby improving the power transmission efficiency, reducing the wear of the contact line, and avoiding breakage or excessive wear of the contact line due to excessive or insufficient tension, thereby extending its service life. In daily use, birds usually stay on the contact line, so that their excrement may fall on the contact line, causing the contact line to become dirty. Therefore, the adjustment component can be continuously started and operated, and the adjustment component can be moved back and forth on the contact line to drive away the birds. The protection of the blocking plate 11 and the connecting block 19 can prevent the excrement from falling directly on the contact line, thereby reducing the occurrence of power supply line short circuit, tripping and other faults, allowing the equipment to operate normally.

[0036] Reference Figure 1 and Figure 2 A support rod 9 is hinged on the outer wall of the upper pull rod 3, and one end of the support rod 9 away from the upper pull rod 3 is hinged to the outer wall of the arm 4. The outer walls of the upper pull rod 3 and the arm 4 are fixedly connected with an arc extinguishing coil 10.

[0037] During use, the support rod 9 can effectively improve the connection stability between the upper pull rod 3 and the arm 4, reducing the risk of the upper pull rod 3 and the arm 4 shaking and falling off under the influence of bad weather. The arc extinguishing coil 10 can be set to control and eliminate the arc when it is generated, avoiding the arc from spreading and causing damage to the contact line.

[0038] Reference Figure 1 and Figure 3The tensioning assembly includes a fixed block 12 fixedly connected to the bottom of the blocking plate 11, a cavity 13 is opened inside the fixed block 12, an electric telescopic rod 14 is fixedly connected to the inner top surface of the cavity 13, the output end of the electric telescopic rod 14 is fixedly connected to a connecting column 15, and the end of the connecting column 15 away from the electric telescopic rod 14 is fixedly connected to an adjusting block 16, one side of the adjusting block 16 is fixedly connected to a tensioning wheel 17, a slide groove 18 is opened on one side of the fixed block 12, the adjusting block 16 is T-shaped, and the adjusting block 16 is slidably connected in the slide groove 18.

[0039] When in use, first pass the contact wire through one of the positioning rings 8 and then wrap it around the tensioning wheel 17. Then start the electric telescopic rod 14 to drive the connecting column 15 to extend and retract inside the fixed block 12, thereby pushing the adjusting block 16 to move up and down inside the cavity 13 according to the guidance of the slide groove 18. The up and down movement of the adjusting block 16 can drive the tensioning wheel 17 and the contact wire to adjust their positions together. In this way, the tension of the contact wire can be adjusted remotely without manual operation by the staff, so that the contact wire can always remain stable, ensuring good contact between the contact wire and the train pantograph, thereby improving the power transmission efficiency, reducing the wear of the contact wire, and avoiding breakage or excessive wear of the contact wire due to excessive or insufficient tension, thereby extending its service life.

[0040] Reference Figure 1 and Figure 4 The adjustment component includes a motor 20 fixedly connected to one side of the connecting block 19, a screw rod 21 is rotatably connected to the inside of the connecting block 19, the output end of the motor 20 is fixedly connected to one end of the screw rod 21, a moving block 22 is threadedly connected to the screw rod 21, and the bottom of the moving block 22 is rotatably connected to a resistance wheel 23. A guide groove 24 is provided at the bottom of the connecting block 19, and the moving block 22 is slidably connected in the guide groove 24.

[0041] When in use, first start the motor 20 to drive the screw rod 21 to rotate. As the screw rod 21 rotates, the moving block 22 will move back and forth inside the connecting block 19 according to the guidance of the guide groove 24, thereby driving the friction wheel 23 to move together. At this time, the friction wheel 23 will be in contact with the outer wall of the contact line. The reciprocating friction wheel 23 can drive away birds on the contact line to prevent birds from staying on the contact line.

[0042] The implementation principle of a track power supply system in this embodiment is as follows: when in use, first, multiple support columns 1 are evenly installed and fixed on both sides of the track according to construction requirements. When installing and fixing the support columns 1, the bottom of the support columns 1 and the embedded parts 25 can be buried underground, so that the support columns 1 can be more stable during use and the possibility of tilting and tilting can be reduced. Then the contact line is passed through the positioning ring 8 and wrapped around the tensioning wheel 17. The provided suspension string 6 and positioning tube 7 can make the contact line within the working range of the pantograph slide on the top of the track train, and the contact line is set in a zigzag shape to complete the erection of the contact network. The support rod 9 can effectively improve the connection stability between the upper pull rod 3 and the arm 4, and reduce the risk of the upper pull rod 3 and the arm 4 shaking and falling off under the influence of bad weather. The provided arc suppression coil 10 can control and eliminate the arc when it is generated, so as to avoid the arc from spreading and causing damage to the contact line.

[0043] In daily use, the vibration caused by the running of the rail train, as well as the thermal expansion and contraction in summer and winter, may cause the contact line to deform and sag or become tight. At this time, the electric telescopic rod 14 may be started to drive the connecting column 15 to expand and contract inside the fixed block 12, thereby pushing the adjusting block 16 to move up and down inside the cavity 13 according to the guidance of the slide groove 18. The up and down movement of the adjusting block 16 may drive the tensioning wheel 17 and the contact line to adjust their positions together. In this way, the tension of the contact line can be remotely adjusted without manual operation by the staff, so that the contact line can always remain stable, ensuring good contact between the contact line and the train pantograph, thereby improving the power transmission efficiency, reducing the wear of the contact line, and avoiding breakage or excessive wear of the contact line due to excessive or insufficient tension, thereby extending its service life.

[0044] In addition, during daily use, birds usually stay on the contact line, and their excrement may fall on the contact line, causing the contact line to become dirty. Therefore, the motor 20 can be continuously started to drive the screw rod 21 to rotate. As the screw rod 21 rotates, the moving block 22 will move back and forth inside the connecting block 19 according to the guidance of the guide groove 24, thereby driving the contact wheel 23 to move together. At this time, the contact wheel 23 will be in contact with the outer wall of the contact line. The reciprocating contact wheel 23 can drive away the birds on the contact line to prevent the birds from staying on the contact line, and the excrement will not fall directly on the contact line through the protection of the blocking plate 11 and the connecting block 19, thereby reducing the occurrence of faults such as short circuit and tripping of the power supply line, so that the equipment can operate normally.

Claims

1. A track power supply system comprising a plurality of support columns (1), characterized in that: One side of the plurality of support columns (1) is fixedly connected to a connecting plate (2), one side of the connecting plate (2) is symmetrically fixedly connected to an upper pull rod (3), one side of the connecting plate (2) is symmetrically tilted and hinged to a wrist arm (4), one end of the wrist arm (4) away from the connecting plate (2) is hinged to the upper pull rod (3), one end of the upper pull rod (3) away from the connecting plate (2) is fixedly connected to a load-bearing cable (5), the bottom of the load-bearing cable (5) is fixedly connected to a suspension string (6), and the wrist arm (4) The bottom of the support column (1) is hinged with a positioning tube (7), one end of the suspension string (6) away from the load-bearing cable (5) is fixedly connected to the positioning tube (7), and the bottom of one end of the positioning tube (7) is fixedly connected to a positioning ring (8), the tops of the plurality of support columns (1) are fixedly connected to a blocking plate (11), the bottom of the blocking plate (11) is installed with a tensioning assembly, and the adjacent two sides of the plurality of support columns (1) are fixedly connected to a connecting block (19), and the interior of the connecting block (19) is installed with an adjustment assembly.

2. A rail power supply system according to claim 1, characterized in that: A support rod (9) is hinged on the outer wall of the upper pull rod (3), and one end of the support rod (9) away from the upper pull rod (3) is hinged to the outer wall of the arm (4).

3. The rail power supply system according to claim 1, characterized in that: Arc extinguishing coils (10) are fixedly connected to the outer walls of the upper pull rod (3) and the arm (4).

4. The track power supply system according to claim 1, characterized in that: The tensioning assembly comprises a fixed block (12) fixedly connected to the bottom of the blocking plate (11), a cavity (13) is provided inside the fixed block (12), an electric telescopic rod (14) is fixedly connected to the inner top surface of the cavity (13), an output end of the electric telescopic rod (14) is fixedly connected to a connecting column (15), an end of the connecting column (15) away from the electric telescopic rod (14) is fixedly connected to an adjusting block (16), and a tensioning wheel (17) is fixedly connected to one side of the adjusting block (16).

5. A track power supply system according to claim 4, characterized in that: A sliding groove (18) is provided on one side of the fixed block (12), and the adjusting block (16) is T-shaped, and the adjusting block (16) is slidably connected in the sliding groove (18).

6. The track power supply system according to claim 1, characterized in that: The adjustment assembly comprises a motor (20) fixedly connected to one side of an inner portion of a connecting block (19); a screw rod (21) is rotatably connected to the inner portion of the connecting block (19); an output end of the motor (20) is fixedly connected to one end of the screw rod (21); a moving block (22) is threadedly connected to the screw rod (21); and a bottom portion of the moving block (22) is rotatably connected to a contact wheel (23).

7. A rail power supply system according to claim 6, characterized in that: A guide groove (24) is provided at the bottom of the connecting block (19), and the moving block (22) is slidably connected in the guide groove (24).

8. The track power supply system according to claim 1, characterized in that: A plurality of support columns (1) are all fixedly connected with embedded parts (25).

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