Electric vehicle pantograph pressure detection device

Abstract

A kind of electric car pantograph pressure detection device, it includes main beam, slide plate, boom device, adjusting device, measuring rod, counterweight assembly, insulator, pressure sensor and wire clamping device, the main beam is equipped with the rail group of horizontal extension perpendicular to contact wire, the slide plate is equipped on slide rail, adjusting device and the upper end of boom device are all equipped on slide plate;The measuring rod is arranged below the main beam, counterweight assembly, adjusting device, boom device, insulator and wire clamping device are sequentially installed on measuring rod from back to front, pressure sensor is arranged in adjusting device.The pressure detection device of the utility model is simpler than traditional structure, overall weight is reduced, so that high-altitude construction difficulty is reduced.It keeps free along the displacement of contact wire extension direction, can reduce the problem of inaccurate data caused by length change caused by thermal expansion and stress, ensure that detection precision is higher, more accurate.The utility model has strong practicability, and has strong popularization significance.

Description

Technical Field

[0001] This utility model relates to a pantograph pressure detection device, and more particularly to a pantograph pressure detection device for electric buses. Background Technology

[0002] In recent years, my country's high-speed electrified railways have developed rapidly. In these systems, to ensure stable current collection by the locomotive, a stable contact pressure between the pantograph and the overhead contact line is crucial. Insufficient contact pressure can cause the pantograph to detach from the contact line, forming an electric arc and posing a safety hazard. Excessive contact pressure can cause the contact line to bend, accelerating wear on both the pantograph and the contact line, leading to fatigue damage and affecting the lifespan of the overhead contact line. In severe cases, it can even directly damage the carbon sliding plate or the contact line, potentially causing a pantograph-catenary accident. Therefore, pressure detection devices are needed to measure the pantograph pressure.

[0003] However, most existing pressure detection devices use multiple insulators combined to form a fixed triangular structure, such as the pantograph pressure detection device described in Chinese Patent CN 220751424 U. These devices suffer from complex structures, heavy overall weight, inconvenience for high-altitude construction, and a high probability of failure. Furthermore, the contact wire is fixed in its extension direction, and thermal expansion and contraction can cause changes in its length, leading to inaccurate detection data. Utility Model Content

[0004] Therefore, it is necessary to provide a pantograph pressure detection device for electric buses to address the shortcomings of existing technologies.

[0005] A pantograph pressure detection device for electric passenger vehicles includes a main beam, a sliding plate, a boom assembly, an adjusting device, a measuring rod, a counterweight assembly, an insulator, a pressure sensor, and a wire clamping device. The main beam has a horizontally extending slide rail, and the sliding plate is mounted on the slide rail. The upper ends of the adjusting device and the boom assembly are both mounted on the sliding plate and arranged along the extension direction of the slide rail. The measuring rod is located below the main beam. The counterweight assembly, adjusting device, boom assembly, insulator, and wire clamping device are sequentially mounted on the measuring rod from back to front. The pressure sensor is located on the adjusting device. The wire clamping device includes a limiting seat, a lifting adjusting device, a base, a wire clamping seat, and a wire clamp. The limiting seat is located on a mounting base, and the lifting adjusting device is mounted on the limiting seat. The bottom of the lifting adjusting device has an adjusting rod, the bottom end of which is mounted on the base. The bottom of the base has a horizontally extending guide groove, and the top of the wire clamping seat has a guide rail. The guide rail is installed in the guide groove and can move relative to the guide rail. The wire clamp is mounted on the bottom end of the wire clamping seat.

[0006] Furthermore, the measuring rod has a pivot part in the middle, which includes two opposite side plates. A swing shaft is provided between the two side plates, and the two ends of the swing shaft are installed on the two side plates. The swing shaft passes through the bottom end of the suspension rod device, and the measuring rod rotates along the swing shaft.

[0007] Furthermore, the outer end of the measuring rod is provided with a mounting base, and the wire clamping device is mounted on the mounting base; the insulator is mounted on the measuring rod between the pivot and the mounting base.

[0008] Furthermore, two wire clamps are provided, and the wire clamps are installed at intervals on the wire clamp base.

[0009] Furthermore, the bottom end of the wire clamp is provided with two opposite sides with limiting grooves, and the inner side of the wire clamp is provided with limiting protrusions, which are embedded in the limiting grooves.

[0010] Furthermore, the clamp includes two limiting blocks, a bolt, and a nut. The two limiting blocks are arranged opposite to each other, the bolt passes through the two limiting blocks, and the nut is installed on the screw outside the limiting blocks for limiting.

[0011] Furthermore, the upper ends of both limiting blocks are provided with limiting protrusions corresponding to the limiting grooves, and the limiting protrusions are embedded in the limiting grooves; the bottom ends of the two limiting blocks are formed with lower limiting grooves for limiting the contact wire.

[0012] Furthermore, the clamp seat is provided with two limiting blocks, which are located at both ends of the guide rail.

[0013] Furthermore, the adjustment device includes an adjustment part and an adjustment rod. The bottom end of the adjustment rod is connected to the measuring rod, and the top end of the adjustment rod is connected to the adjustment part. The adjustment rod drives the measuring rod to move up and down.

[0014] Furthermore, the boom device includes a lifting and adjusting device, a boom disposed at the bottom end of the lifting and adjusting device, and a guide sleeve disposed outside the boom. The guide sleeve is limited on the sliding plate, and the bottom end of the boom is pivotally connected to the swing shaft.

[0015] In summary, the pressure detection device of this utility model has a simpler overall structure and lighter weight compared to traditional structures, thus reducing the difficulty of high-altitude construction. The use of a separate clamp for the contact wire connection further enhances its overall lightweight design. Furthermore, the height of the contact wire and its vertical position can be adjusted during installation by changing the vertical position of the measuring rod and the suspension rod, as well as the position of the sliding plate on the slide rail. After adjustment, the device is locked to restrict vertical and height displacement of the contact wire, while allowing free displacement along its extension direction. This effectively isolates the contact wire from inaccurate data caused by contact wire movement or offset due to other equipment or external forces outside the pantograph pressure detection position, ensuring higher and more accurate detection precision. This utility model is highly practical and has significant potential for widespread application. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the pantograph pressure detection device for electric passenger vehicles according to this utility model;

[0017] Figure 2 for Figure 1 A partially enlarged structural diagram of the central main beam;

[0018] Figure 3 for Figure 1 Enlarged structural diagram of the mounting base;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the clamping device;

[0020] Figure 5 for Figure 4 A side view of the clamping device. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] like Figures 1 to 5 As shown, this utility model provides a pantograph pressure detection device for electric buses, which includes an installation component 10 and a detection component 20 installed on the installation component 10. In this embodiment, the installation component 10 includes a main beam 11, on which a slide rail 111 is provided, and the detection component 20 is installed on the slide rail 111.

[0023] The detection assembly 20 includes a sliding plate 21, a suspension rod device 22, an adjustment device 23, a measuring rod 24, a counterweight assembly 25, an insulator 26, a pressure sensor 27, and a wire clamping device 28. The sliding plate 21 is mounted on a slide rail 111 and can move back and forth along the slide rail 111 for position adjustment. The suspension rod device 22 and the adjustment device 23 are both mounted on the sliding plate 21 and arranged in the front-back direction. The sliding plate 21 drives the suspension rod device 22 and the adjustment device 23 to move back and forth. The measuring rod 24 is located below the main beam 11. The counterweight assembly 25, the adjustment device 23, the suspension rod device 22, the insulator 26, and the wire clamping device 28 are sequentially mounted on the measuring rod 24 from back to front. The pressure sensor 27 is mounted on the adjustment device 23. In this embodiment, the pressure sensor 27 is a conventional sensor.

[0024] Specifically, the bottom end of the suspension rod device 22 is pivotally connected to the measuring rod 24, the bottom end of the adjusting device 23 is fixedly installed on the measuring rod 24, the counterweight assembly 25 is installed above the rear end of the measuring rod 24, and the wire clamping device 28 is located below the front side of the measuring rod. The measuring rod 24 has a pivot part 241 in its middle, and a swing shaft 242 in its middle. The swing shaft 242 passes through the bottom end of the suspension rod device 24, allowing the measuring rod 24 to rotate along the swing shaft 242, causing the front and rear sides to tilt up or down respectively. The outer end of the measuring rod 24 has a mounting base 243, and the wire clamping device 28 is installed on the mounting base 243. The insulator 26 is installed on the measuring rod 24 between the pivot part 241 and the mounting base 243.

[0025] The adjustment device 23 includes an adjustment part 231 and an adjustment rod 232. The bottom end of the adjustment rod 232 is connected to the measuring rod 24, and the top end of the adjustment rod 232 is connected to the adjustment part 231. The adjustment part 231 drives the adjustment rod 232 to move up and down. The movement of the adjustment rod 232 can be adjusted by means of motor adjustment, cylinder adjustment, etc. Specifically, in an embodiment, the adjustment part 231 includes an adjustment screw 2311 and an adjustment seat 2312. The bottom end of the adjustment screw 2311 is fixed to the top end of the adjustment rod 232. Rotating the adjustment screw 2311 can pull the measuring rod 24 up or down. In this embodiment, the pressure sensor 27 is disposed on the adjustment rod 232; the detection method of the pressure sensor 27 is a conventional method in this technical field.

[0026] The boom device 22 includes a lifting adjustment device and a boom 221 disposed at the bottom of the lifting adjustment device. The lifting adjustment device can be a conventional motor adjustment, cylinder adjustment, or other method to drive the boom 221 to move up and down. In this embodiment, the boom device 22 also includes a guide sleeve 222 disposed outside the boom 221. The guide sleeve 222 is positioned on the slide plate 21, and the bottom end of the boom 221 is pivotally connected to the swing shaft 242.

[0027] The mounting base 243 is provided with a mounting groove 2431, and mounting holes are provided on both sides of the mounting groove 2431. The mounting hole group includes at least one row of mounting holes 2432 arranged in a front-to-back direction. The wire clamping device 28 includes a limiting seat 281, a lifting adjustment device 282, a connecting flange 283, a base 284, a wire clamping seat 285, and a wire clamp 286. The limiting seat 281 is provided on the mounting base 243 and is installed by screws locked into the mounting holes 2432. The lifting adjustment device 282 is installed on the limiting seat 281 and is provided with an adjusting rod. The connecting flange 283 is installed at the bottom end of the adjusting rod and is installed on the base 284. In this embodiment, the lifting adjustment device 282 can be a conventional adjustment structure such as a motor or cylinder. The base 284 has a horizontally extending guide groove 2841 at its bottom, and the wire clamp 285 has a guide rail 2851 at its top. The guide rail 2851 is installed in the guide groove 2841 and can move relative to it. In addition, the wire clamp 285 has limiting blocks 2852 at both ends of the guide rail 2851.

[0028] The wire clamp 285 has two opposite sides at its bottom end with limiting grooves 2853, and the wire clamp 286 has a limiting protrusion on its inner side. The limiting protrusion is embedded in the limiting groove 2853, thereby realizing the installation of the wire clamp 286. In this embodiment, two wire clamps 286 are provided at intervals.

[0029] The wire clamp 286 includes two limiting blocks 2861, a bolt 2862, and a nut 2863. The two limiting blocks 2861 are arranged opposite to each other. The bolt 2862 passes through the two limiting blocks 2861, and the nut 2863 is mounted on the screw 2862 on the outside of the limiting blocks 2861 for limiting. Each of the upper ends of the two limiting blocks 2861 has a limiting protrusion 2865 corresponding to the limiting groove 2853, and the limiting protrusion 2865 is embedded in the limiting groove 2853. Furthermore, the bottom ends of the two limiting blocks 2861 form lower limiting grooves 2866 for limiting the contact wire.

[0030] Furthermore, the installation assembly 10 of this invention also includes a horizontal transition plate 12, which reduces the requirements for on-site construction. A reinforcing support 13 is also provided at the bottom of the filter plate 12 to improve its stability when installed on a column.

[0031] During operation, the two contact wire clamps 286 of this device clamp the contact wire 100, and the area between the two contact wire clamps 286 is the detection area. When a locomotive passes by, the pantograph on the locomotive lifts the contact wire in the detection area from the bottom up, creating contact pressure between the contact wire and the pantograph. This pressure is transmitted through the contact wire to the clamp seat 285 and the measuring rod 24 at one end of the insulator 26. Since the measuring rod 24 can rotate along the pivot 241, forming a lever structure, when the outer end of the measuring rod 24 is subjected to an upward pushing force, the inner end of the measuring rod 24 generates a downward pulling force. This pulling force acts on the pressure sensor 27, causing the tension sensor 27 to generate detection data. When the contact wire changes length due to thermal expansion and contraction or tension adjustment, the clamp seat 285 drives the clamps 286 and the entire contact wire to move along the guide groove 2841 to compensate for the length change, thereby ensuring the accuracy and stability of the pressure detection device's measurement data.

[0032] In summary, the pressure detection device of this utility model has a simpler overall structure and lighter weight compared to traditional structures, thus reducing the difficulty of high-altitude construction. The use of a separate wire clamp 286 for connection with the contact wire further enhances its overall lightness. Furthermore, the height of the contact wire and its vertical position can be adjusted during installation by changing the vertical position of the measuring rod 24 and the hanging rod 221, as well as the forward and backward position of the sliding plate 21 on the slide rail 111. After adjustment, these adjustments are locked to restrict vertical and height displacement of the contact wire 100, while allowing free displacement along the contact wire's extension direction. This isolates inaccurate data caused by contact wire movement or offset due to other equipment or external forces outside the pantograph pressure detection position, ensuring higher and more accurate detection precision. This utility model is highly practical and has significant potential for widespread application.

[0033] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pantograph pressure detection device for electric passenger vehicles, characterized in that: The device includes a main beam, a sliding plate, a suspension rod assembly, an adjustment device, a measuring rod, a counterweight assembly, an insulator, a pressure sensor, and a wire clamping device. The main beam has a horizontally extending slide rail, and the sliding plate is mounted on the slide rail. The upper ends of the adjustment device and the suspension rod assembly are both mounted on the sliding plate and arranged along the extension direction of the slide rail. The measuring rod is located below the main beam. The counterweight assembly, adjustment device, suspension rod assembly, insulator, and wire clamping device are sequentially installed on the measuring rod from back to front. The pressure sensor is located on the adjustment device. The wire clamping device includes a limiting seat, a lifting adjustment device, a base, a wire clamping seat, and a wire clamp. The limiting seat is located on a mounting base, and the lifting adjustment device is mounted on the limiting seat. The bottom of the lifting adjustment device has an adjusting rod, the bottom end of which is mounted on the base. The bottom of the base has a horizontally extending guide groove, and the top of the wire clamping seat has a guide rail. The guide rail is installed in the guide groove and can move relative to the guide rail. The wire clamp is mounted on the bottom end of the wire clamping seat.

2. The pantograph pressure detection device for electric passenger vehicles as described in claim 1, characterized in that: The measuring rod has a pivot part in the middle, and a swing shaft is provided in the middle of the pivot part. The swing shaft passes through the bottom end of the suspension rod device, and the measuring rod rotates along the swing shaft.

3. The pantograph pressure detection device for electric passenger vehicles as described in claim 2, characterized in that: The outer end of the measuring rod is provided with a mounting base, and the wire clamping device is mounted on the mounting base; the insulator is mounted on the measuring rod between the pivot and the mounting base.

4. The pantograph pressure detection device for electric passenger vehicles as described in claim 1, characterized in that: Two wire clamps are provided, and the wire clamps are installed at intervals on the wire clamp base.

5. The pantograph pressure detection device for electric passenger vehicles as described in claim 4, characterized in that: The bottom end of the wire clamp is provided with two opposite sides with limiting grooves, and the inner side of the wire clamp is provided with limiting protrusions, which are embedded in the limiting grooves.

6. The pantograph pressure detection device for electric passenger vehicles as described in claim 5, characterized in that: The clamp includes two limiting blocks, a bolt, and a nut. The two limiting blocks are arranged opposite to each other. The bolt passes through the two limiting blocks, and the nut is installed on the screw outside the limiting blocks for limiting.

7. The pantograph pressure detection device for electric passenger vehicles as described in claim 6, characterized in that: The upper ends of both limiting blocks are provided with limiting protrusions corresponding to the limiting grooves, and the limiting protrusions are embedded in the limiting grooves; the bottom ends of the two limiting blocks are formed with lower limiting grooves for limiting the contact wire.

8. The pantograph pressure detection device for electric passenger vehicles as described in claim 1, characterized in that: The clamp seat is equipped with two limiting blocks, which are located at both ends of the guide rail.

9. The pantograph pressure detection device for electric passenger vehicles as described in claim 1, characterized in that: The adjustment device includes an adjustment part and an adjustment rod. The bottom end of the adjustment rod is connected to the measuring rod, and the top end of the adjustment rod is connected to the adjustment part. The adjustment rod drives the measuring rod to move up and down.

10. The pantograph pressure detection device for electric passenger vehicles as described in claim 2, characterized in that: The boom assembly includes a lifting and adjusting device, a boom disposed at the bottom of the lifting and adjusting device, and a guide sleeve disposed outside the boom. The guide sleeve is positioned on the sliding plate, and the bottom end of the boom is pivotally connected to the swing shaft.

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