Cold pulley ladder type contact network detection device

Abstract

The utility model discloses a cold block ladder type contact network detection device, which relates to the technical field of railway tracks and comprises a supporting seat, two groups of sliding rods are connected to the inner wall of the supporting seat in a sliding manner, a fixing plate is fixed at one end of each sliding rod, a supporting plate is fixed at the top of the fixing plate, a detection assembly is arranged at the top of the supporting plate, and the detection assembly is arranged at the bottom of the supporting plate. An adjusting assembly used for adjusting the detection position is arranged in the supporting seat. The beneficial effects of the utility model are that the detection assembly is used for recording detection data, detecting temperature distribution of the overhead line system and measuring geometric parameters of the overhead line system, the detection effect is improved, the adjusting assembly drives the bidirectional screw rod to rotate through the driving motor, so that the sliding rod moves horizontally, the detection position can be flexibly adjusted according to different track gauges, various line detection requirements are met, and the detection efficiency is improved. The transmission part drives the driving gear to be engaged with the tooth column through the second motor, height adjustment of the detection assembly is achieved, and contact networks of different heights can be detected.

Description

Technical Field

[0001] This utility model relates to the field of railway track technology, and in particular to a cold-rolled trolley ladder-type contact wire detection device. Background Technology

[0002] The overhead contact system is a crucial power supply device in electrified railways. It is erected along the railway line to provide continuous and stable power to electric locomotives or EMUs. The overhead contact system mainly consists of contact suspension, support devices, positioning devices, and pillars and foundations. The contact suspension is in direct contact with the train's pantograph to transmit electrical energy to the train.

[0003] To ensure the safety of train operation, it is necessary to inspect the overhead contact line. However, existing inspection devices are usually installed on the train ladder to inspect the overhead contact line. However, the inspection devices are usually installed in a fixed position on the train ladder and cannot be adjusted according to different track gauges. When the track gauge is different, the spatial position of the overhead contact line will shift, but the measurement reference cannot be adjusted with the track gauge, which affects the inspection effect of the overhead contact line. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A cold-roller ladder-type contact wire inspection device includes a support base. Two sets of slide rods are slidably connected to the inner wall of the support base. A fixing plate is fixed to one end of each slide rod. A support plate is fixed to the top of the fixing plate. A detection component is provided on the top of the support plate. An adjustment component for adjusting the detection position is provided inside the support base. Two sets of limiting frames are fixed to the top of the support plate. A support frame is fixed between the two sets of limiting frames. A transmission component is provided on the top of the support frame. A toothed column is slidably connected to the inner wall of the support frame. A support rod for adjusting the detection height is fixed to the top of the toothed column.

[0006] The detection assembly includes a support plate fixed to the top of the support rod, and a recorder, an infrared thermal imager, and a lidar are respectively mounted on the top of the support plate;

[0007] The adjustment assembly includes a threaded sleeve fixed to one end of the slide rod, a limit seat fixed to the inner wall of the support base, a bidirectional screw rotatably connected to the inner wall of the limit seat via a rotating shaft, and the two ends of the bidirectional screw are respectively threaded to the inner walls of two sets of threaded sleeves. A drive component for driving the bidirectional screw to rotate is provided on one side of the support base.

[0008] As a preferred embodiment of the cold sliding car ladder-type contact wire detection device of this utility model, the driving component includes a mounting base fixed to one side of the support base, a drive motor fixed to one side of the mounting base, a first bevel gear fixed to the output end of the drive motor, and a second bevel gear fixed to the outer side of the bidirectional screw, and the outer side of the first bevel gear meshes with the outer side of the second bevel gear.

[0009] In a preferred embodiment of the cold sliding car ladder-type contact wire detection device of this utility model, a fixing rod is fixed on the other side of the support base, a sleeve rod is slidably connected to the outside of the fixing rod, and a handle is fixed to one end of the sleeve rod.

[0010] As a preferred embodiment of the cold sliding ladder-type contact network detection device of this utility model, the inner cavity of the fixing rod is provided with multiple sets of threaded holes, the inner wall of the sleeve rod is threaded with a positioning bolt, and the outer side of the positioning bolt is threadedly connected to the inner wall of the threaded hole.

[0011] As a preferred embodiment of the cold sliding car ladder-type contact wire detection device of this utility model, the bottom of the sliding rod is fixed with a fixed seat, and the bottom of the fixed seat is provided with two sets of moving wheels for moving on the railway track.

[0012] As a preferred embodiment of the cold sliding car ladder-type contact wire detection device of this utility model, the transmission component includes a second motor fixed to the top of the support frame, a protective frame fixed to one side of the support frame, the output end of the second motor penetrates the inner wall of the protective frame and is fixed with a drive gear, and the outer side of the drive gear meshes with the outer side of the gear post.

[0013] In a preferred embodiment of the cold sliding trolley-type contact wire detection device of this utility model, a slider is slidably connected to the inner wall of the limiting frame, a limiting rod is fixed to the top of the slider, and the top of the limiting rod passes through the top of the limiting frame and is fixed to the bottom of the bearing plate.

[0014] In summary, this utility model has the following beneficial effects: the detection component is used to record detection data, detect the temperature distribution of the contact wire, and measure the geometric parameters of the contact wire, thereby improving the detection effect; the adjustment component drives the bidirectional screw to rotate through the drive motor, causing the slide bar to move horizontally, which can flexibly adjust the detection position according to different track gauges and adapt to various line detection needs; the transmission component drives the drive gear to mesh with the toothed column through the second motor, thereby realizing the height adjustment of the detection component, which can detect contact wires at different heights. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a structural diagram of the cold sliding car ladder-type contact network detection device.

[0017] Figure 2 This is a schematic diagram of the support base in this utility model.

[0018] Figure 3 This is a schematic diagram of the detection component in this utility model.

[0019] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0020] The following components are labeled in the diagram: 1. Support base; 2. Slide rod; 3. Fixing plate; 4. Support plate; 5. Detection component; 51. Bearing plate; 52. Recorder; 53. Infrared thermal imager; 54. LiDAR; 6. Adjustment component; 61. Threaded sleeve; 62. Limiting seat; 63. Bidirectional screw; 64. Drive component; 641. Mounting base; 642. Drive motor; 643. First bevel gear; 644. Second bevel gear; 7. Limiting frame; 8. Support frame; 9. Transmission component; 91. Second motor; 92. Protective frame; 93. Drive gear; 10. Gear column; 11. Support rod; 12. Fixing rod; 13. Sleeve rod; 14. Handle; 15. Threaded hole; 16. Positioning bolt; 17. Fixing seat; 18. Moving wheel; 19. Slider; 20. Limiting rod. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1:

[0025] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a cold sliding trolley type contact wire detection device, including a support base 1. Two sets of sliding rods 2 are slidably connected to the inner wall of the support base 1. A fixing plate 3 is fixed to one end of the sliding rod 2. A support plate 4 is fixed to the top of the fixing plate 3. A detection component 5 is provided on the top of the support plate 4. An adjustment component 6 for adjusting the detection position is provided inside the support base 1. Two sets of limiting frames 7 are fixed to the top of the support plate 4. A support frame 8 is fixed between the two sets of limiting frames 7. A transmission component 9 is provided on the top of the support frame 8. A toothed column 10 is slidably connected to the inner wall of the support frame 8. A support rod 11 for adjusting the detection height is fixed to the top of the toothed column 10.

[0026] The adjustment component 6 can drive the two sets of sliding rods 2 to slide inside the support base 1, so that the sliding rods 2 drive the support plate 4 to move, thereby adjusting the position of the detection component 5. This ensures that the detection component 5 can detect key parts of the contact network. At the same time, it can be adjusted according to different track gauges, so that contact network detection can be carried out on lines with different track gauges. The detection component 5 is used to record detection data, detect the temperature distribution of the contact network, and measure the geometric parameters of the contact network, thereby improving the detection effect. The transmission component 9 can drive the toothed column 10 and the support rod 11 to rise and fall, thereby adjusting the height of the detection component 5 to meet the contact network detection needs at different heights.

[0027] The detection component 5 includes a support plate 51 fixed to the top of the support rod 11, and a recorder 52, an infrared thermal imager 53 and a lidar 54 are respectively mounted on the top of the support plate 51.

[0028] The recorder 52, model M320Pro, uses digital video technology to record the road conditions ahead or around in real time with the help of a camera. It converts the video signal into a digital signal, compresses it, and stores it in the built-in memory. This is existing technology and will not be described in detail here. The recorder 52 is used to record the real-time status of the contact network, including the wear, corrosion, or loosening of key components such as conductors, insulators, and support devices, providing a basis for subsequent analysis and processing.

[0029] The infrared thermal imager 53, model number E09Pro, uses an infrared detector and an optical imaging lens to receive the infrared radiation energy distribution pattern of the target under test and reflects it onto the photosensitive element of the infrared detector to obtain an infrared thermal image. This is existing technology and will not be described in detail here. The infrared thermal imager 53 is used to detect the temperature distribution of various components of the contact network and to discover potential fault points, such as poor contact or internal defects, by detecting temperature anomalies.

[0030] The model of the lidar 54 is Pandar40P. The lidar 54 detects targets by emitting laser beams and receives their reflected signals to calculate the target's position, distance, and shape information. The lidar emits short-pulse laser beams, which are projected in different directions through the scanning structure. When the laser beam encounters an object, it is reflected. The receiver captures the reflected light signal and converts it into an electrical signal. This is existing technology and will not be described in detail here.

[0031] The lidar 54 scans the contact wire by emitting a laser beam and uses the received reflected signals to determine the spatial position of the contact wire in the horizontal and vertical directions. When measuring the pull-out value and guide height value of the contact wire, for the pull-out value, the lidar 54 emits a horizontal laser beam to scan the contact wire. After the laser beam hits the contact wire, it is reflected back. The lidar 54 determines the deflection angle of the laser beam relative to the preset line centerline by analyzing the reflected signal, and at the same time measures the distance from the contact wire to the laser source in real time. Combining these two pieces of information, the internal algorithm of the lidar 54 can directly calculate the horizontal offset of the contact wire relative to the line center. Based on the positive or negative value, it can distinguish whether the offset is to the left or to the right. This offset is the pull-out value.

[0032] For the guide height value, the lidar 54 vertically emits a laser beam to scan the contact line. It first obtains a fixed reference distance from the laser source to the rail surface. Based on the time difference between laser emission and reception and the speed of light, it calculates the vertical distance from the laser source to the rail surface. Then, it measures the vertical distance from the contact line to the laser source. Based on the time difference and the speed of light, it calculates the vertical distance from the contact line to the laser source. Simultaneously, it considers the angle information during vertical scanning. By combining these data, the lidar 54 can accurately determine the vertical height of the contact line from the rail plane, i.e., the guide height value, through its own algorithm. The entire measurement process relies on real-time calculation of point cloud data, achieving high-precision and dynamic measurement without contact with the contact wire. The internal algorithm of the lidar 54 is a series of mathematical models and calculation methods used to process the data collected by the lidar 54 to calculate the position, distance, shape, and other information of the target object (such as the contact line). It combines the working principle of the lidar 54, geometric relationships, and related mathematical and physical knowledge to analyze and process the received reflected signals, thereby obtaining the required measurement results. This is an existing technology and will not be elaborated here.

[0033] The adjusting assembly 6 includes a threaded sleeve 61 fixed to one end of the slide rod 2, a limit seat 62 fixed to the inner wall of the support base 1, a bidirectional screw 63 rotatably connected to the inner wall of the limit seat 62 via a rotating shaft, and the two ends of the bidirectional screw 63 are respectively threaded to the inner walls of two sets of threaded sleeves 61. A driving component 64 for driving the bidirectional screw 63 to rotate is provided on one side of the support base 1.

[0034] The drive component 64 can drive the bidirectional screw 63 to rotate. The rotation of the bidirectional screw 63 can cause the two sets of threaded sleeves 61 to move towards each other or away from each other at the same time, thereby driving the slide rod 2 to move horizontally inside the support base 1, adjusting the position of the detection component 5. At the same time, the detection position can be adjusted according to different track gauges. It should be noted that both the support base 1 and the slide rod 2 are rectangular, so the slide rod 2 will move horizontally inside the support base 1 and will not rotate.

[0035] Example 2:

[0036] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] Specifically, the drive component 64 includes a mounting base 641 fixed to one side of the support base 1, a drive motor 642 fixed to one side of the mounting base 641, a first bevel gear 643 fixed to the output end of the drive motor 642, a second bevel gear 644 fixed to the outer side of the bidirectional screw 63, and the outer side of the first bevel gear 643 meshing with the outer side of the second bevel gear 644.

[0038] The drive motor 642 is started to drive the first bevel gear 643 and the second bevel gear 644 to rotate, which in turn drives the bidirectional screw 63 to rotate, thereby achieving the effect of adjusting the position of the detection component 5.

[0039] Specifically, a fixing rod 12 is fixed on the other side of the support base 1, and a sleeve rod 13 is slidably connected to the outside of the fixing rod 12. A handle 14 is fixed to one end of the sleeve rod 13.

[0040] The device can be manually pushed or pulled by the handle 14 to facilitate subsequent contact wire inspection. The handle 14 can be adjusted to allow for adjustment of the length of the handle 14, thus adapting to different scenarios and different users.

[0041] Specifically, the inner cavity of the fixing rod 12 has multiple sets of threaded holes 15, and the inner wall of the sleeve rod 13 is threaded with a positioning bolt 16, and the outer side of the positioning bolt 16 is threaded with the inner wall of the threaded hole 15.

[0042] After adjusting the length of the handle 14, screw the positioning bolt 16 into the threaded hole 15 to fix the sleeve 13 to the outside of the fixing rod 12 and position the sleeve 13.

[0043] Specifically, the bottom of the slide bar 2 is fixed with a fixed base 17, and the bottom of the fixed base 17 is provided with two sets of moving wheels 18 for moving on the railway track.

[0044] The movable wheel 18 allows the detection device to move freely on the railway track, facilitating detection in different sections. Furthermore, the movement of the slide bar 2 can drive the fixed base 17 to move, enabling the movable wheel 18 to adapt to tracks with different gauges.

[0045] Example 3:

[0046] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0047] Specifically, the transmission component 9 includes a second motor 91 fixed to the top of the support frame 8. A protective frame 92 is fixed to one side of the support frame 8. The output end of the second motor 91 passes through the inner wall of the protective frame 92 and is fixed with a drive gear 93. The outer side of the drive gear 93 is meshed with the outer side of the gear post 10.

[0048] The protective frame 92 can protect the drive gear 93, reducing the impact of dust on the drive gear 93. Starting the second motor 91 can drive the drive gear 93 to rotate, causing the gear column 10 to move up and down inside the support frame 8, thereby driving the bearing plate 51 to rise and fall, achieving the effect of adjusting the detection height, and enabling the detection of contact wires at different heights.

[0049] It should be noted that during transmission, the tooth surface of the drive gear 93 and the tooth post 10 experiences high contact stress and relative sliding. If dust enters the meshing area, it will act as abrasive particles, exacerbating tooth surface wear, leading to tooth deformation, tooth thickness reduction, and even pitting or spalling. It is necessary to regularly apply an appropriate amount of lubricating oil to their surfaces for protection. The lubricant can form a protective film on the surfaces of the drive gear 93 and the tooth post 10, which can not only reduce friction and wear, but also adsorb dust particles, preventing dust from accumulating on the meshing surface and affecting the transmission effect. The replenishment and replacement cycle of the lubricating oil needs to be determined according to the frequency of use and working conditions of the equipment.

[0050] Specifically, a slider 19 is slidably connected to the inner wall of the limiting frame 7, and a limiting rod 20 is fixed to the top of the slider 19. The top of the limiting rod 20 passes through the top of the limiting frame 7 and is fixed to the bottom of the bearing plate 51.

[0051] When the support plate 51 is raised or lowered, it will drive the limit rod 20 to move up and down, causing the slider 19 to slide inside the limit frame 7. Since both the limit frame 7 and the slider 19 are rectangular, the movement of the slider 19 will cause the support plate 51 to move vertically up and down.

[0052] During operation, the recorder 52 uses a camera to record the status of the contact network in real time, converts the video signal into a digital signal for storage, and records the condition of key components of the contact network. The infrared thermal imager 53 uses an infrared detector to obtain the temperature distribution of various components of the contact network and discover potential fault points. The lidar 54 emits a laser beam to scan the contact network, determines the spatial position of the contact wire through reflected signals, calculates the pull-out value for horizontal scanning, and determines the guide height value by combining relevant distances for vertical scanning. When it is necessary to adjust the position of the detection component 5 to adapt to different track gauge detection, the drive motor 642 is started to drive the first bevel gear 643 and the second bevel gear. The rotation of wheel 644 drives the bidirectional screw 63 to rotate within the limiting seat 62. When the bidirectional screw 63 rotates, it causes the two sets of threaded sleeves 61 to move towards or away from each other, thereby driving the slide bar 2 to move horizontally within the rectangular support seat 1, thus adjusting the detection position. The moving wheel 18 moves with the slide bar 2, which can adapt to different track gauges. The second motor 91 is started, and its output end drives the drive gear 93 to rotate within the protective frame 92. The drive gear 93 meshes with the toothed column 10, causing the toothed column 10 to slide up and down within the support frame 8, thereby adjusting the height of the detection component 5, which can detect contact wires of different heights.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cold-rolled trolley ladder-type contact wire detection device, comprising a support base (1), characterized in that: The inner wall of the support base (1) is slidably connected with two sets of slide rods (2). One end of the slide rod (2) is fixed with a fixing plate (3). The top of the fixing plate (3) is fixed with a support plate (4). The top of the support plate (4) is provided with a detection component (5). The inside of the support base (1) is provided with an adjustment component (6) for adjusting the detection position. The top of the support plate (4) is fixed with two sets of limit frames (7). The two sets of limit frames (7) are fixed with a support frame (8). The top of the support frame (8) is provided with a transmission component (9). The inner wall of the support frame (8) is slidably connected with a toothed column (10). The top of the toothed column (10) is fixed with a support rod (11) for adjusting the detection height. The detection component (5) includes a support plate (51) fixed to the top of the support rod (11), and a recorder (52), an infrared thermal imager (53) and a lidar (54) are respectively installed on the top of the support plate (51). The adjustment assembly (6) includes a threaded sleeve (61) fixed to one end of the slide rod (2), a limit seat (62) is fixed to the inner wall of the support base (1), and a bidirectional screw (63) is rotatably connected to the inner wall of the limit seat (62) via a rotating shaft. The two ends of the bidirectional screw (63) are respectively threaded to the inner walls of two sets of threaded sleeves (61). A drive member (64) for driving the bidirectional screw (63) to rotate is provided on one side of the support base (1).

2. The cold-rolled sliding car ladder-type contact wire detection device as described in claim 1, characterized in that: The drive unit (64) includes a mounting base (641) fixed to one side of the support base (1), a drive motor (642) fixed to one side of the mounting base (641), a first bevel gear (643) fixed to the output end of the drive motor (642), a second bevel gear (644) fixed to the outer side of the bidirectional screw (63), and the outer side of the first bevel gear (643) meshing with the outer side of the second bevel gear (644).

3. The cold-rolled sliding car ladder-type contact wire detection device as described in claim 1, characterized in that: A fixing rod (12) is fixed on the other side of the support base (1), and a sleeve rod (13) is slidably connected to the outside of the fixing rod (12). A handle (14) is fixed to one end of the sleeve rod (13).

4. The cold-rolled sliding car ladder-type contact wire detection device as described in claim 3, characterized in that: The inner cavity of the fixing rod (12) has multiple sets of threaded holes (15), and the inner wall of the sleeve rod (13) is threaded with a positioning bolt (16), and the outer side of the positioning bolt (16) is threaded with the inner wall of the threaded hole (15).

5. The cold-rolled trolley ladder-type contact wire detection device as described in claim 1, characterized in that: The bottom of the slide bar (2) is fixed with a fixed seat (17), and the bottom of the fixed seat (17) is provided with two sets of moving wheels (18) for moving on the railway track.

6. The cold-rolled sliding car ladder-type contact wire detection device as described in claim 1, characterized in that: The transmission component (9) includes a second motor (91) fixed to the top of the support frame (8). A protective frame (92) is fixed to one side of the support frame (8). The output end of the second motor (91) passes through the inner wall of the protective frame (92) and is fixed with a drive gear (93). The outer side of the drive gear (93) meshes with the outer side of the gear column (10).

7. The cold-rolled sliding car ladder-type contact wire detection device as described in claim 1, characterized in that: The inner wall of the limiting frame (7) is slidably connected to a slider (19), and a limiting rod (20) is fixed to the top of the slider (19). The top of the limiting rod (20) passes through the top of the limiting frame (7) and is fixed to the bottom of the bearing plate (51).

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