A track measuring device

Abstract

The present application belongs to the field of track measurement technology, and discloses a track measurement device. The track measurement device comprises a track inspection trolley, a measurement mechanism, a double-axis tilt sensor, a gauge sensor, a gyro device and an odometer. The measurement mechanism comprises a mounting assembly, a measurement assembly and a servo motor. The mounting assembly, the double-axis tilt sensor, the gauge sensor, the gyro device and the odometer are all mounted on the track inspection trolley. The servo motor is arranged on the mounting assembly. The output end of the servo motor is in transmission connection with the measurement assembly. The measurement assembly comprises a CCD camera and a laser ranging module. The CCD camera is used for collecting track side images in real time. The track inspection trolley adjusts the position of the track inspection trolley on the track according to the track side images. The servo motor adjusts the direction of the measurement assembly according to the track side images, so that the laser point of the laser ranging module hits the center of the reflecting target. The track measurement device can continuously, dynamically, quickly and high-precisely measure the spatial position and geometric state of the track, and has low cost.

Description

Technical Field

[0001] This invention relates to the field of track measurement technology, and in particular to a track measurement device. Background Technology

[0002] In the construction, overhaul, operation, and maintenance of high-speed railways, conventional railways, subways, and intercity railways, precise measurement of track spatial position and geometric state data is required. Existing absolute measuring trolleys are used. After setting up the station with an automatic total station, the coordinates of a precision prism on the absolute measuring trolley are locked and measured, and data from tilt and gauge sensors are read. This method requires the absolute measuring trolley to be stationary during measurement. In actual operation, the absolute measuring trolley is pushed to the sleeper to be measured to begin the measurement, and after the measurement is completed, the absolute measuring trolley is pushed to the next sleeper. This method offers high measurement accuracy but has very low operational efficiency.

[0003] Existing inertial navigation measurement trolleys continuously measure the spatial position and geometric state data of the track using an inertial navigation system mounted on the trolley. To ensure accuracy, the trolley stops and comes to a standstill every 120-150 meters, and a high-precision fully automatic total station mounted on the trolley observes eight CP3 control points to obtain the spatial position (absolute coordinates) of the total station, which in turn yields the spatial position of the inertial navigation system, allowing for correction of the inertial navigation data. In this mode, the inertial navigation system and the high-precision fully automatic total station are expensive. Observing eight CP3 control points with the fully automatic total station requires the installation of precision prisms, and the time spent installing and observing the prisms is far greater than the time required for continuous measurement of a section using inertial navigation. Furthermore, the human operator's non-uniform motion during the trolley movement introduces inertia and acceleration changes, affecting the measurement accuracy of the inertial navigation system.

[0004] Therefore, there is an urgent need for a track measuring device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a track measuring device that enables continuous, dynamic, rapid, and high-precision measurement of track spatial position and geometric state at low cost.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A track measuring device, comprising:

[0008] A track inspection trolley is used to move along a track, and a reflective target is installed at each control point of the area to be tested on the track.

[0009] The measuring mechanism includes a mounting component, a measuring component, and a servo motor. The mounting component is mounted on the track inspection trolley, and the servo motor is mounted on the mounting component. The output end of the servo motor is connected to the measuring component. The measuring component includes a CCD camera and a laser ranging module. The CCD camera is configured to acquire track-side images in real time. The track inspection trolley adjusts its position on the track based on the track-side images. The servo motor adjusts the direction of the measuring component based on the track-side images so that the laser point of the laser ranging module hits the center of the reflective target.

[0010] The track inspection trolley includes a dual-axis tilt sensor, a track gauge sensor, a gyroscope, and an odometer.

[0011] The distance data to the reflective target is measured by the laser ranging module, and the angle data of the absolute dial built into the servo motor is read. The target tilt data of the track inspection trolley is collected by the dual-axis tilt sensor, and the target track gauge data is measured by the track gauge sensor. Based on the distance data, the angle data, the target tilt data, and the target track gauge data, the target track data of the current reflective target position is determined, and the mileage value of the odometer is set according to the target track data. The track inspection trolley is controlled to move to the next reflective target, and the travel angular velocity data of the gyroscope device, the travel mileage data of the odometer, the travel tilt data of the dual-axis tilt sensor, and the travel track gauge data of the track gauge sensor are read in real time. Based on the travel angular velocity data, travel mileage data, travel tilt data, and travel track gauge data, the travel track data between the two reflective targets is determined. The travel track data between the two reflective targets is linearly corrected based on the target track data of the two reflective target positions.

[0012] As an optional solution, the track inspection trolley includes:

[0013] The trolley body is used to move along the track;

[0014] A quick-release assembly is provided, on which the measuring mechanism or the gyroscope device is mounted. The quick-release assembly includes a mounting plate, a fixed positioning block, a movable positioning block, and an adjusting component. The mounting plate is detachably connected to the trolley body, and the dual-axis tilt sensor is mounted on the mounting plate. The fixed positioning block is fixedly disposed on the mounting plate and abuts against a first side of the measuring mechanism or the gyroscope device. The movable positioning block and the fixed positioning block are arranged at relative intervals, and the movable positioning block is slidably connected to the mounting plate. The adjusting component is configured to adjust the movable positioning block to move towards or away from the fixed positioning block, and the movable positioning block abuts against a second side of the measuring mechanism or the gyroscope device.

[0015] As an optional solution, the adjusting component is a locking knob, which is rotatably connected to the mounting plate, and one end of the locking knob passes through the mounting plate and is threadedly connected to the movable positioning block.

[0016] As an optional solution, the abutting side of the fixed positioning block and / or the abutting side of the movable positioning block is provided with a first abutting slope, and the abutting side of the measuring mechanism or the gyroscope device is provided with a second abutting slope that fits against the first abutting slope.

[0017] As an optional solution, the abutting side of the fixed positioning block or the abutting side of the movable positioning block is provided with a positioning protrusion, and the abutting side of the measuring mechanism or the gyroscope device is provided with a positioning groove that engages with the positioning protrusion.

[0018] As an optional solution, the track inspection trolley includes a trolley body, which includes a body beam, a double-wheel mechanism, and a single-wheel mechanism. The odometer is installed on both the double-wheel mechanism and the single-wheel mechanism, and the track gauge sensor is installed on the body beam.

[0019] The dual-wheel mechanism includes a dual-wheel frame and two dual-wheel assemblies. The dual-wheel frame is connected to the first end of the vehicle body crossbeam. The two dual-wheel assemblies are arranged at intervals along the extension direction of the track. Each dual-wheel assembly includes a first traveling wheel and a first traveling drive motor. The first traveling drive motor is disposed on the dual-wheel frame. The first traveling wheel is rotatably connected to the dual-wheel frame. The output end of the first traveling drive motor is drively connected to the first traveling wheel. The first traveling drive motor is configured to drive the first traveling wheel to rotate.

[0020] The single-wheel mechanism includes a second traveling wheel and a second traveling drive motor. The second traveling drive motor is disposed at the second end of the vehicle body crossbeam. The second traveling wheel is rotatably connected to the second end of the vehicle body crossbeam. The second traveling wheel is located between the two first traveling wheels. The output end of the second traveling drive motor is connected to the second traveling wheel in a transmission manner. The second traveling drive motor is configured to drive the second traveling wheel to rotate.

[0021] As an optional solution, the vehicle body crossbeam includes a first connecting crossbeam and a second connecting crossbeam. The end of the first connecting crossbeam is provided with the two-wheel frame, and the end of the second connecting crossbeam is provided with the single-wheel mechanism. The first connecting crossbeam and the second connecting crossbeam are rotatably connected by a pivot. The first connecting crossbeam has a folded position and an unfolded position relative to the second connecting crossbeam. When the first connecting crossbeam is in the unfolded position, the first connecting crossbeam and the second connecting crossbeam extend sequentially along the extension direction of the vehicle body crossbeam. When the first connecting crossbeam is in the folded position, the first connecting crossbeam and the second connecting crossbeam are stacked and arranged.

[0022] The trolley body also includes a connecting component. When the first connecting beam is in the unfolded position, the connecting component locks the first connecting beam and the second connecting beam.

[0023] As an optional solution, a first magnetic chuck is provided on the first connecting beam, and a second magnetic chuck is provided on the second connecting beam. When the first connecting beam is in the folded position, the first magnetic chuck and the second magnetic chuck attract each other.

[0024] As an optional solution, the track measuring device also includes a support mechanism and a control module. The support mechanism and the control module are both installed on the track inspection trolley. The support mechanism is used to install the host computer. The track inspection trolley, the CCD camera, the laser ranging module, the dual-axis tilt sensor, the track gauge sensor, the gyroscope device, and the odometer are all connected to the host computer through the control module.

[0025] As an optional solution, the support mechanism includes:

[0026] A connecting plate, which is installed on the track inspection trolley;

[0027] A telescopic rod, wherein the telescopic rod is rotatably connected to the connecting plate about the direction of movement of the track inspection trolley;

[0028] An installation tray is connected to the top of the telescopic rod, and the host computer is mounted on the installation tray.

[0029] The beneficial effects of this invention are:

[0030] The track measurement device provided by this invention comprises a track inspection trolley, a measuring mechanism, a dual-axis tilt sensor, a gauge sensor, a gyroscope, and an odometer that work in concert. A CCD camera captures real-time side views of the track, allowing the track inspection trolley to adjust its position on the track based on these images. A servo motor adjusts the direction of the measuring components according to the side views, ensuring the laser point of the laser ranging module hits the center of the reflective target. At this position, the laser ranging module measures the distance to the reflective target and reads the angle data from the servo motor's built-in absolute scale. The dual-axis tilt sensor collects the target tilt data, and the gauge sensor measures the target gauge data. Based on the distance... The target trajectory data for the current reflector target position is determined based on the target position angle data, target tilt data, and target track gauge data. The odometer mileage value is set according to the target trajectory data. After completing the measurement of one target, the track inspection trolley moves to the next reflector target. During the movement, the angular velocity data from the gyroscope, the mileage data from the odometer, the tilt data from the dual-axis tilt sensor, and the track gauge data from the track gauge sensor are read in real time. Based on these data, the track data between the two reflectors is determined, and linear corrections are made to the track data between the two reflectors based on their target position trajectory data. This setup allows the track measurement device to automatically identify control points and move precisely to those points for automatic measurement. After completing the control point measurement, it automatically starts moving to begin the next interval measurement. Furthermore, only one reflector target needs to be measured at each control point, significantly improving measurement efficiency. Meanwhile, the synergistic effect of the gyroscope, laser ranging module, absolute scale, odometer, and dual-axis tilt sensor ensures measurement accuracy. Compared with the inertial navigation trolley, it eliminates the need for expensive inertial navigation devices and automatic total stations, greatly reducing costs. Moreover, it has a high level of overall intelligence and significantly reduces the technical requirements for operators. Attached Figure Description

[0031] Figure 1 This is a first structural schematic diagram of the track measuring device provided in an embodiment of the present invention;

[0032] Figure 2 This is a second structural schematic diagram of the track measuring device provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the third structure of the track measuring device provided in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the first quick-release assembly provided in an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the control module provided in an embodiment of the present invention;

[0036] Figure 6 This is a first structural schematic diagram of the gyroscope device provided in an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the second structure of the gyroscope device provided in an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the second quick-release assembly provided in an embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the measuring mechanism provided in an embodiment of the present invention.

[0040] In the picture:

[0041] 1. Track inspection trolley; 11. Trolley body; 111. Car body crossbeam; 1111. First connecting crossbeam; 11111. First crossbeam; 11112. Second crossbeam; 111121. First magnetic chuck; 1112. Second connecting crossbeam; 11121. Second magnetic chuck; 112. Two-wheel mechanism; 1121. Two-wheel frame; 1122. Two-wheel assembly; 11221. First traveling wheel; 11222. First traveling drive motor; 11223. First close-fitting wheel; 113. Single-wheel mechanism; 1131. Second traveling wheel 1132. Wheel; 1133. Second travel drive motor; 1134. Track gauge measuring head; 1135. Track gauge measuring connecting rod; 1136. Track gauge measuring protective plate; 12. First quick-release assembly; 121. First mounting plate; 122. First fixed positioning block; 123. First movable positioning block; 124. First adjusting component; 13. Second quick-release assembly; 131. Second mounting plate; 132. Second fixed positioning block; 133. Second movable positioning block; 134. Second adjusting component; 14. First abutting slope; 15. Positioning protrusion;

[0042] 2. Measuring mechanism; 21. Mounting components; 22. Measuring components; 221. CCD camera; 222. Laser ranging module; 23. Servo motor;

[0043] 3. Dual-axis tilt sensor;

[0044] 4. Track gauge sensor;

[0045] 5. Gyroscope device; 51. Fixing plate; 52. Handle; 53. Power switch; 54. Data communication socket; 55. Status indicator light; 56. Communication indicator light;

[0046] 6. Odometer;

[0047] 7. Control module; 71. Control module status indicator; 72. Main switch; 73. Bluetooth indicator; 74. First communication port of host computer; 75. Second communication port of host computer; 76. Communication port of measuring mechanism; 77. Communication port of gyroscope device; 78. Type-C power port; 79. DC port; 70. Bluetooth antenna mount;

[0048] 8. Positioning groove;

[0049] 9. Support mechanism; 91. Connecting plate; 92. Telescopic rod; 93. Mounting tray. Detailed Implementation

[0050] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0051] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0054] like Figures 1-4As shown, this embodiment provides a track measuring device, which includes a track inspection trolley 1, a measuring mechanism 2, a dual-axis tilt sensor 3, a track gauge sensor 4, a gyroscope device 5, and an odometer 6. The track inspection trolley 1 is used to move along the track, and a reflective target is installed at each control point of the track's test area. The measuring mechanism 2 includes a mounting assembly 21, a measuring assembly 22, and a servo motor 23. The mounting assembly 21 is mounted on the track inspection trolley 1, and the servo motor 23 is disposed on the mounting assembly 21. The output end of the servo motor 23 is connected to the measuring assembly 22 for transmission. The measuring assembly 22 includes a CCD camera 221 and a laser ranging module 222. The CCD camera 221 is configured to acquire track side images in real time. The track inspection trolley 1 adjusts its position on the track according to the track side images, and the servo motor 23 adjusts the direction of the measuring assembly 22 according to the track side images so that the laser point of the laser ranging module 222 hits the center of the reflective target. The dual-axis tilt sensor 3, the track gauge sensor 4, the gyroscope device 5, and the odometer 6 are all mounted on the track inspection trolley 1. The distance data of the reflective target is measured by the laser ranging module 222, and the angle data of the absolute dial built into the servo motor 23 is read. The target tilt data of the track inspection trolley 1 is collected by the dual-axis tilt sensor 3, and the target track gauge data is measured by the track gauge sensor 4. Based on the distance data, angle data, target tilt data, and target track gauge data, the target track data of the current reflective target position is determined. The mileage value of the odometer 6 is set according to the target track data, and the track inspection trolley 1 is controlled to move to the next reflective target. The travel angular velocity data of the gyroscope device 5, the travel mileage data of the odometer 6, the travel tilt data of the dual-axis tilt sensor 3, and the travel track gauge data of the track gauge sensor 4 are read in real time. The travel track data between the two reflective targets is determined according to the travel angular velocity data, travel mileage data, travel tilt data, and travel track gauge data. The travel track data between the two reflective targets is linearly corrected according to the target track data of the two reflective target positions.

[0055] The track measurement device provided in this embodiment comprises a track inspection trolley 1, a measuring mechanism 2, a dual-axis tilt sensor 3, a track gauge sensor 4, a gyroscope device 5, and an odometer 6 that work in concert. A CCD camera 221 acquires real-time side views of the track, allowing the track inspection trolley 1 to adjust its position on the track based on these images. A servo motor 23 adjusts the direction of the measuring component 22 based on the side views, ensuring that the laser point of the laser ranging module 222 hits the center of the reflective target. At this position, the laser ranging module 222 measures the distance to the reflective target, and the servo motor 23 reads the angle data from its built-in absolute scale. The dual-axis tilt sensor 3 acquires the target tilt data of the track inspection trolley 1, and the track gauge sensor 4 measures the target position. Based on distance, angle, target tilt, and target gauge data, the target trajectory data for the current reflector position is determined. The odometer 6 is then set to its mileage value based on this data. After completing a target measurement, the track inspection trolley 1 moves to the next reflector. During movement, the angular velocity data from the gyroscope 5, the mileage data from the odometer 6, the tilt data from the dual-axis tilt sensor 3, and the track gauge data from the gauge sensor 4 are read in real time. The track data between the two reflectors is determined based on these data, and linear corrections are made to the track data between the two reflectors. This setup allows the track measurement device to automatically identify control points and precisely move to them for automatic measurement. After completing the control point measurement, it automatically starts moving to begin the next interval measurement. Furthermore, only one reflector needs to be measured at each control point, significantly improving measurement efficiency. Meanwhile, the gyroscope 5, laser ranging module 222, absolute scale, odometer 6, and dual-axis tilt sensor 3 work together to ensure measurement accuracy. Compared with inertial navigation trolley, it eliminates the need for expensive inertial navigation devices and automatic total station, greatly reducing costs. Moreover, it has a high level of overall intelligence and significantly reduces the technical requirements for operators.

[0056] It should be noted that the principles of data acquisition and measurement by the CCD camera 221, laser ranging module 222, dual-axis tilt sensor 3, track gauge sensor 4, gyroscope device 5, and odometer 6 are existing technologies and will not be elaborated here.

[0057] In addition, it should be noted that the track inspection trolley 1 adjusts its position on the track according to the track side image, and the servo motor 23 adjusts the direction of the measuring component 22 according to the track side image so that the laser point of the laser ranging module 222 hits the center of the reflective target. This specific adjustment method is an existing adjustment method and will not be described in detail here. Furthermore, it should be noted that the specific control acquisition method described above, which involves "determining the target trajectory data of the current reflective target position based on distance data, angle data, target tilt data, and target gauge data, setting the mileage value of the odometer 6 based on the target trajectory data, controlling the track inspection trolley 1 to move to the next reflective target, and reading the travel angular velocity data of the gyroscope device 5, the travel mileage data of the odometer 6, the travel tilt data of the dual-axis tilt sensor 3, and the travel gauge data of the gauge sensor 4 in real time, determining the travel trajectory data between the two reflective targets based on the travel angular velocity data, travel mileage data, travel tilt data, and travel gauge data, and linearly correcting the travel trajectory data between the two reflective targets based on the target trajectory data of the two reflective target positions," belongs to existing technology and will not be elaborated here.

[0058] In this embodiment, as Figure 2 and Figure 5 As shown, the track measurement device also includes a support mechanism 9 and a control module 7. Both the support mechanism 9 and the control module 7 are mounted on the track inspection trolley 1. The support mechanism 9 is used to mount the host computer. The track inspection trolley 1, CCD camera 221, laser ranging module 222, dual-axis tilt sensor 3, track gauge sensor 4, gyroscope device 5, and odometer 6 are all connected to the host computer via the control module 7. This configuration facilitates operation of the control module 7 and the host computer from the track inspection trolley 1, and the control module 7 and the host computer move with the track inspection trolley 1, making on-site operation more convenient. It should be noted that the host computer is a computer device, specifically a mobile terminal such as a laptop computer.

[0059] In this embodiment, as Figure 5As shown, the control module 7 is in the form of a control panel, which includes a control module status indicator light 71, a main switch 72, a Bluetooth indicator light 73, a first communication port 74 for the host computer, a second communication port 75 for the host computer, a communication port 76 for the measuring mechanism, a communication port 77 for the gyroscope device, a Type-C power port 78, a DC port 79, and a Bluetooth antenna mount 70. The control module status indicator light 71 displays the operating status of the control module 7, the main switch 72 controls the opening and closing of the control module 7, and the Bluetooth indicator light 73 indicates whether the connection has been established. Bluetooth enables communication. When control module 7 communicates with the host computer via a serial port, it communicates with the host computer via the first communication port 74. When control module 7 communicates with the host computer via a USB port, it communicates with the host computer via the second communication port 75. When control module 7 communicates with the host computer via Bluetooth, a Bluetooth antenna is installed on the Bluetooth antenna mount 70 to enable data transmission and reception between control module 7 and the host computer. This embodiment does not specifically limit the communication connection method between the host computer and control module 7. In this embodiment, control module 7 communicates with the devices in measurement mechanism 2 via measurement mechanism communication port 76, and communicates with gyroscope device 5 via gyroscope device communication port 77. In actual use, the user can power on control module 7 and start working via the main switch 72. Then, the host computer can collect data from gyroscope device 5, measurement mechanism 2, track gauge sensor 4, and dual-axis tilt sensor 3, and perform calibrations accordingly. After calibration, the track inspection trolley 1 can be pushed to the vicinity of the control point P0 at the starting point of the area to be tested. Then, the host computer can control the CCD camera 221 to start taking continuous high-speed pictures and process each returned image.

[0060] In this embodiment, as Figure 1 and Figure 2As shown, the support mechanism 9 includes a connecting plate 91, a telescopic rod 92, and a mounting tray 93. The connecting plate 91 is mounted on the track inspection trolley 1. The telescopic rod 92 is rotatably connected to the connecting plate 91 around the moving direction of the track inspection trolley 1. The mounting tray 93 is connected to the top of the telescopic rod 92, and a host computer is mounted on the mounting tray 93. The telescopic rod 92 facilitates adjustment of the height of the mounting tray 93, making it easier for operators of different heights to operate the host computer. Furthermore, by allowing the telescopic rod 92 and the connecting plate 91 to rotatably connect around the moving direction of the track inspection trolley 1, the angle of the mounting tray 93 can be adjusted, allowing operators to operate the host computer from different positions, making the position adjustment of the host computer more flexible. It should be noted that the specific telescopic structure of the telescopic rod 92 is existing technology and will not be described in detail here. It should also be noted that after adjusting the rotation angle of the telescopic rod 92 relative to the connecting plate 91, the relative position of the telescopic rod 92 and the connecting plate 91 is locked by tightening the adjustment knob. Since the specific structure and locking principle of the adjustment knob are existing technologies, they will not be described in detail here.

[0061] In this embodiment, the track inspection trolley 1 includes a trolley body 11 and a quick-release assembly. The trolley body 11 is used to move along the track. The quick-release assembly is equipped with a measuring mechanism 2 or a gyroscope device 5. The quick-release assembly includes a mounting plate, a fixed positioning block, a movable positioning block, and an adjusting component. The mounting plate is detachably connected to the trolley body 11 and is equipped with a dual-axis tilt sensor 3. The fixed positioning block is fixedly mounted on the mounting plate and abuts against the first side of the measuring mechanism 2 or the gyroscope device 5. The movable positioning block and the fixed positioning block are arranged at relative intervals and are slidably connected to the mounting plate. The adjusting component is configured to adjust the movable positioning block to move closer to or further away from the fixed positioning block and abuts against the second side of the measuring mechanism 2 or the gyroscope device 5. The above-mentioned structural design of the quick-release assembly enables the rapid installation and removal of the measuring mechanism 2 or the gyroscope device 5, and also enables the clamping and fixing of measuring mechanisms 2 or gyroscope devices 5 of different sizes, improving the versatility of the quick-release assembly.

[0062] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown, the quick-release assembly includes a first quick-release assembly 12, which includes a first mounting plate 121, a first fixed positioning block 122, a first movable positioning block 123, and a first adjusting member 124. The first mounting plate 121 is detachably connected to the trolley body 11. A dual-axis tilt sensor 3 is mounted on the first mounting plate 121. The first fixed positioning block 122 is fixedly disposed on the first mounting plate 121 and abuts against the first side of the gyroscope device 5. The first movable positioning block 123 and the first fixed positioning block 122 are arranged at intervals relative to each other. The first movable positioning block 123 is slidably connected to the first mounting plate 121. The first adjusting member 124 is configured to adjust the first movable positioning block 123 to move towards or away from the first fixed positioning block 122. The first movable positioning block 123 abuts against the second side of the gyroscope device 5. The structural design of the first quick-release component 12 described above enables rapid installation and disassembly of the gyroscope device 5, and also allows for clamping and fixing of gyroscope devices 5 of different sizes, thus improving the versatility of the first quick-release component 12. It should be noted that the first mounting plate 121 is connected to the trolley body 11 by bolts or screws.

[0063] Optionally, the adjusting element is a locking knob, which is rotatably connected to the mounting plate, and one end of the locking knob passes through the mounting plate and is threadedly connected to the movable positioning block. Specifically, for example... Figure 4 As shown, the first adjusting member 124 is a locking knob. The first adjusting member 124 is rotatably connected to the first mounting plate 121, and one end of the first adjusting member 124 passes through the first mounting plate 121 and is threadedly connected to the first movable positioning block 123. When it is necessary to install the gyroscope device 5 on the first quick-release assembly 12, place the gyroscope device 5 on the first mounting plate 121, positioning it between the first fixed positioning block 122 and the first movable positioning block 123. Then, rotate the first adjusting member 124 relative to the first mounting plate 121, causing the first movable positioning block 123 to move closer to the first fixed positioning block 122 until the first movable positioning block 123 and the first fixed positioning block 122 together clamp the gyroscope device 5. When it is necessary to remove the gyroscope device 5 from the first quick-release assembly 12, rotate the first adjusting member 124 relative to the first mounting plate 121, causing the first movable positioning block 123 to move away from the first fixed positioning block 122 until the first movable positioning block 123 removes its contact with the gyroscope device 5. This configuration makes operation convenient.

[0064] Optionally, the abutting side of the fixed positioning block and / or the abutting side of the movable positioning block are provided with a first abutting slope 14, and the abutting side of the measuring mechanism 2 or the gyroscope device 5 is provided with a second abutting slope that fits against the first abutting slope 14. Specifically, in this embodiment, as... Figure 4As shown, both the abutting side of the first fixed positioning block 122 and the abutting side of the first movable positioning block 123 are provided with a first abutting slope 14, which abuts and cooperates with the abutting side of the gyroscope device 5 to ensure the stability of clamping and fixing the gyroscope device 5. Optionally, the first abutting slope 14 is inclined from bottom to top towards the inside, further ensuring the stability of clamping the gyroscope device 5. In other embodiments, the first abutting slope 14 can be provided only on the abutting side of the first fixed positioning block 122 or the abutting side of the first movable positioning block 123, and then a second abutting slope can be provided on the corresponding abutting side of the gyroscope device 5.

[0065] Optionally, a positioning protrusion 15 is provided on the abutting side of the fixed positioning block or the abutting side of the movable positioning block, and a positioning groove 8 is provided on the abutting side of the measuring mechanism 2 or the gyroscope device 5 to engage with the positioning protrusion 15. This arrangement ensures the reliability of the installation and positioning of the measuring mechanism 2 or the gyroscope device 5. Specifically, as shown... Figure 4 and Figure 6 As shown, a positioning protrusion 15 is provided on the abutting side of the first fixed positioning block 122. The positioning protrusion 15 is inserted and engaged with the positioning groove 8 on the abutting side of the gyroscope device 5, ensuring the reliability of the first quick-release assembly 12 in positioning the gyroscope device 5. In other embodiments, a positioning protrusion 15 may also be provided on the abutting side of the first movable positioning block 123, and a positioning groove 8 may be provided on the abutting side of the gyroscope device 5.

[0066] In this embodiment, as Figure 6 and Figure 7 As shown, the gyroscope device 5 includes a fixing plate 51, a handle 52, a power switch 53, a data communication socket 54, a status indicator light 55, and a communication indicator light 56. The fixing plate 51 is provided with a second abutment slope (not shown in the figure) and a positioning groove 8. The fixing plate 51 is also provided with a handle 52 for easy handling of the gyroscope device 5. The fixing plate 51 is also provided with a power switch 53, a data communication socket 54, a status indicator light 55, and a communication indicator light 56. The power switch 53 is used to control the opening and closing of the gyroscope device 5. The status indicator light 55 is used to display the working status of the gyroscope device 5. The gyroscope device 5 is connected to the control module 7 through the data communication socket 54. The communication indicator light 56 ​​is used to display the communication connection status of the gyroscope device 5.

[0067] In this embodiment, as Figure 2 , Figure 3 , Figure 8 and Figure 9As shown, the quick-release assembly also includes a second quick-release assembly 13. The second quick-release assembly 13 includes a second mounting plate 131, a second fixed positioning block 132, a second movable positioning block 133, and a second adjusting member 134. The second mounting plate 131 is detachably connected to the trolley body 11. The second fixed positioning block 132 is fixedly disposed on the second mounting plate 131 and abuts against the first side of the mounting assembly 21. The second movable positioning block 133 and the second fixed positioning block 132 are arranged at intervals relative to each other. The second movable positioning block 133 is slidably connected to the second mounting plate 131. The second adjusting member 134 is configured to adjust the second movable positioning block 133 to move closer to or further away from the second fixed positioning block 132. The second movable positioning block 133 abuts against the second side of the mounting assembly 21. The structural design of the second quick-release assembly 13 enables rapid installation and disassembly of the measuring mechanism 2, and also allows for clamping and fixing of measuring mechanisms 2 of different sizes, improving the versatility of the second quick-release assembly 13. It should be noted that the second mounting plate 131 is connected to the trolley body 11 by bolts or screws.

[0068] Optionally, such as Figure 8 As shown, the second adjusting member 134 is a locking knob. The second adjusting member 134 is rotatably connected to the second mounting plate 131, and one end of the second adjusting member 134 passes through the second mounting plate 131 and is threadedly connected to the second movable positioning block 133. When it is necessary to install the measuring mechanism 2 on the second quick-release assembly 13, place the measuring mechanism 2 on the second mounting plate 131, positioning it between the second fixed positioning block 132 and the second movable positioning block 133. Then, rotate the second adjusting member 134 relative to the second mounting plate 131, causing the second movable positioning block 133 to move closer to the second fixed positioning block 132 until the second movable positioning block 133 and the second fixed positioning block 132 together clamp the mounting assembly 21 of the measuring mechanism 2. When it is necessary to remove the measuring mechanism 2 from the second quick-release assembly 13, rotate the second adjusting member 134 relative to the second mounting plate 131, causing the second movable positioning block 133 to move away from the second fixed positioning block 132 until the second movable positioning block 133 removes its contact with the measuring mechanism 2. This configuration makes operation convenient.

[0069] In this embodiment, as Figure 8As shown, both the abutting side of the second fixed positioning block 132 and the abutting side of the second movable positioning block 133 are provided with a first abutting slope 14, which abuts and cooperates with the abutting side of the mounting assembly 21 to ensure the stability of clamping and fixing the measuring mechanism 2. Optionally, the first abutting slope 14 is inclined from bottom to top towards the inside, further ensuring the stability of clamping the measuring mechanism 2. In other embodiments, the first abutting slope 14 can be provided only on the abutting side of the second fixed positioning block 132 or the abutting side of the second movable positioning block 133, and then the second abutting slope can be provided on the corresponding abutting side of the measuring mechanism 2.

[0070] like Figure 8 and Figure 9 As shown, a positioning protrusion 15 is provided on the abutting side of the second fixed positioning block 132. This positioning protrusion 15 is engaged with the positioning groove 8 on the abutting side of the mounting component 21, ensuring the reliability of the second quick-release component 13 in positioning the measuring mechanism 2. In other embodiments, a positioning protrusion 15 can also be provided on the abutting side of the second movable positioning block 133, and a positioning groove 8 can be provided on the matching abutting side of the mounting component 21.

[0071] In this embodiment, as Figures 1-3As shown, the vehicle body 11 includes a body beam 111, a two-wheel mechanism 112, and a single-wheel mechanism 113. Both the two-wheel mechanism 112 and the single-wheel mechanism 113 are equipped with odometers 6. A track gauge sensor 4 is mounted on the body beam 111. The two-wheel mechanism 112 includes a two-wheel frame 1121 and two two-wheel assemblies 1122. The two-wheel frame 1121 is connected to the first end of the body beam 111. The two two-wheel assemblies 1122 are arranged at intervals along the extension direction of the track. Each two-wheel assembly 1122 includes a first traveling wheel 11221 and a first traveling drive motor 11222. The first traveling drive motor 11222 is mounted on the two-wheel frame 1121, and the first traveling wheel 11221 is rotatably connected to the two-wheel frame 1122. 21. The output end of the first travel drive motor 11222 is connected to the first travel wheel 11221. The first travel drive motor 11222 is configured to drive the first travel wheel 11221 to rotate. The single wheel mechanism 113 includes a second travel wheel 1131 and a second travel drive motor 1132. The second travel drive motor 1132 is located at the second end of the vehicle body crossbeam 111. The second travel wheel 1131 is rotatably connected to the second end of the vehicle body crossbeam 111 and is located between the two first travel wheels 11221. The output end of the second travel drive motor 1132 is connected to the second travel wheel 1131 and is configured to drive the second travel wheel 1131 to rotate. The above-described structural design of the vehicle body 11 makes the vehicle body 11 a three-point load-bearing structure, which effectively improves the structural reliability and operational stability of the vehicle body 11. It should be noted that both the first walking drive motor 11222 and the second walking drive motor 1132 are connected to the host computer via the control module 7. The host computer controls the first walking drive motor 11222 and the second walking drive motor 1132 to work according to the information received from the CCD camera 221, so that the trolley body 11 moves forward, backward or stops along the two tracks, realizing the automatic movement and stopping of the trolley body 11, and ensuring that the trolley body 11 moves automatically and accurately to the control point.

[0072] In this embodiment, as Figure 1 and Figure 2As shown, each dual-wheel assembly 1122 includes a first contact wheel 11223, which is rotatably connected to the dual-wheel frame 1121 and rolls against the inner wall of the track. The single-wheel mechanism 113 also includes a track gauge measuring connecting rod 1134 and a track gauge measuring head 1133. The track gauge measuring connecting rod 1134 is located at the second end of the vehicle body crossbeam 111, and the track gauge measuring head 1133 is mounted on the track gauge measuring connecting rod 1134. The connection position between the track gauge measuring connecting rod 1134 and the vehicle body crossbeam 111 is adjustable along the width direction of the two tracks, and the track gauge measuring head 1133 rolls against the inner wall of the other track. Through the coordinated operation of the first contact wheel 11223 and the track gauge measuring head 1133, the reliability of the trolley body 11's movement along the two tracks is ensured, preventing the trolley body 11 from deviating on the track, and enabling the trolley body 11 to adapt to tracks of different widths. It should be noted that the connection position between the track gauge measuring connecting rod 1134 and the car body crossbeam 111 is adjustable along the width direction of the two tracks, which can be achieved by a lead screw and nut. Since the specific structure of the lead screw and nut is existing technology, it will not be described in detail here.

[0073] In this embodiment, as Figure 1 and Figure 2 As shown, the single-wheel mechanism 113 also includes a gauge measurement protection plate 1135, which is disposed on the gauge measurement connecting rod 1134 and protects the outer periphery of the gauge measurement head 1133, thereby improving the protection of the gauge measurement head 1133.

[0074] In this embodiment, as Figure 1 and Figure 2As shown, the vehicle body crossbeam 111 includes a first connecting crossbeam 1111 and a second connecting crossbeam 1112. A two-wheeled frame 1121 is provided at the end of the first connecting crossbeam 1111, and a single-wheel mechanism 113 is provided at the end of the second connecting crossbeam 1112. The first connecting crossbeam 1111 and the second connecting crossbeam 1112 are rotatably connected by a pivot. The first connecting crossbeam 1111 has a folded position and an unfolded position relative to the second connecting crossbeam 1112. When the first connecting crossbeam 1111 is in the unfolded position, the first connecting crossbeam 1111 and the second connecting crossbeam 1112 extend sequentially along the extension direction of the vehicle body crossbeam 111. When the first connecting crossbeam 1111 is in the folded position, the first connecting crossbeam 1111 and the second connecting crossbeam 1112 are stacked and arranged. The vehicle body 11 also includes a connecting assembly (not shown in the figure). When the first connecting crossbeam 1111 is in the unfolded position, the connecting assembly locks the first connecting crossbeam 1111 and the second connecting crossbeam 1112. The above configuration allows the first connecting beam 1111 to be in a folded position when the track measuring device completes its measurement, thereby reducing the overall volume of the track measuring device and facilitating its handling and transportation. Furthermore, the connecting assembly ensures the stability of the first connecting beam 1111 in the unfolded position, making the structure more reliable. Optionally, the connecting assembly is a bolt, which passes through the first connecting beam 1111 and the second connecting beam 1112 for a threaded connection, making the locking and unlocking operations of the connecting assembly on the first connecting beam 1111 more convenient. Optionally, in this embodiment, the first connecting beam 1111 is equipped with a first quick-release assembly 12 and a connecting plate 91, and a two-wheeled frame 1121 is provided on the first connecting beam 1111. The second connecting beam 1112 is equipped with a second quick-release assembly 13 and a single-wheel mechanism 113.

[0075] Optionally, in this embodiment, a first magnetic chuck 111121 is provided on the first connecting beam 1111, and a second magnetic chuck 11121 is provided on the second connecting beam 1112. When the first connecting beam 1111 is in the folded position, the first magnetic chuck 111121 and the second magnetic chuck 11121 attract each other. This arrangement ensures the reliability of the first connecting beam 1111 when it is in the folded position and also facilitates direct rotation of the first connecting beam 1111 to the unfolded position under external force, making operation convenient.

[0076] Optionally, in this embodiment, the first connecting crossbeam 1111 includes a detachably connected first crossbeam 11111 and a second crossbeam 11112. The first crossbeam 11111 is provided with a first quick-release assembly 12, a connecting plate 91, and a two-wheeled frame 1121. The second crossbeam 11112 is rotatably connected to the second connecting crossbeam 1112 via a pivot. When the track measuring device completes the measurement, the first crossbeam 11111 is detached from the second crossbeam 11112, and then the second crossbeam 11112 is stacked under the second connecting crossbeam 1112, further reducing the volume of the entire track measuring device and making it easier to handle and transport. Optionally, the first crossbeam 11111 and the second crossbeam 11112 are detachably connected by bolts or screws.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A track measuring device, characterized in that, include: Track inspection trolley (1), the track inspection trolley (1) is used to move along the track, and a reflective target is installed at each control point of the area to be tested on the track; The measuring mechanism (2) includes an installation component (21), a measuring component (22), and a servo motor (23). The installation component (21) is installed on the track inspection trolley (1), and the servo motor (23) is located on the installation component (21). The output end of the servo motor (23) is connected to the measuring component (22) for transmission. The measuring component (22) includes a CCD camera (221) and a laser ranging module (222). The CCD camera (221) is configured to acquire track side images in real time. The track inspection trolley (1) adjusts its position on the track according to the track side images. The servo motor (23) adjusts the direction of the measuring component (22) according to the track side images so that the laser point of the laser ranging module (222) hits the center of the reflective target. A dual-axis tilt sensor (3), a track gauge sensor (4), a gyroscope device (5), and an odometer (6) are installed on the track inspection trolley (1). The distance data of the reflective target is measured by the laser ranging module (222), and the angle data of the absolute dial built into the servo motor (23) is read. The target tilt data of the track inspection trolley (1) is collected by the dual-axis tilt sensor (3), and the target track gauge data is measured by the track gauge sensor (4). The target track data of the current reflective target position is determined according to the distance data, the angle data, the target tilt data, and the target track gauge data. The mileage value of the odometer (6) is set according to the target track data. The track inspection trolley is controlled. (1) Proceed to the next reflector target and read in real time the angular velocity data of the gyroscope device (5), the mileage data of the odometer (6), the tilt data of the dual-axis tilt sensor (3), and the track gauge data of the track gauge sensor (4); determine the track data between the two reflector targets based on the angular velocity data, the mileage data, the tilt data, and the track gauge data; and perform linear correction on the track data between the two reflector targets based on the target position track data of the two reflector targets.

2. The track measuring device according to claim 1, characterized in that, The track inspection trolley (1) includes: The trolley body (11) is used to move along the track; A quick-release assembly is provided, on which the measuring mechanism (2) or the gyroscope device (5) is mounted. The quick-release assembly includes a mounting plate, a fixed positioning block, a movable positioning block, and an adjusting component. The mounting plate is detachably connected to the trolley body (11). The dual-axis tilt sensor (3) is mounted on the mounting plate. The fixed positioning block is fixedly disposed on the mounting plate. The fixed positioning block abuts against the first side of the measuring mechanism (2) or the gyroscope device (5). The movable positioning block and the fixed positioning block are arranged at relative intervals. The movable positioning block is slidably connected to the mounting plate. The adjusting component is configured to adjust the movable positioning block to move toward or away from the fixed positioning block. The movable positioning block abuts against the second side of the measuring mechanism (2) or the gyroscope device (5).

3. The track measuring device according to claim 2, characterized in that, The adjusting component is a locking knob, which is rotatably connected to the mounting plate, and one end of the locking knob passes through the mounting plate and is threadedly connected to the movable positioning block.

4. The track measuring device according to claim 2, characterized in that, The fixed positioning block and / or the movable positioning block are provided with a first abutting slope (14), and the measuring mechanism (2) or the gyroscope device (5) is provided with a second abutting slope that fits against the first abutting slope (14).

5. The track measuring device according to claim 2, characterized in that, The fixed positioning block or the movable positioning block is provided with a positioning protrusion (15) on its abutting side, and the measuring mechanism (2) or the gyroscope device (5) is provided with a positioning groove (8) that is inserted and cooperates with the positioning protrusion (15) on its abutting side.

6. The track measuring device according to claim 1, characterized in that, The track inspection trolley (1) includes a trolley body (11), which includes a body beam (111), a double-wheel mechanism (112), and a single-wheel mechanism (113). The odometer (6) is installed on both the double-wheel mechanism (112) and the single-wheel mechanism (113), and the track gauge sensor (4) is installed on the body beam (111). The dual-wheel mechanism (112) includes a dual-wheel frame (1121) and two dual-wheel assemblies (1122). The dual-wheel frame (1121) is connected to the first end of the vehicle body crossbeam (111). The two dual-wheel assemblies (1122) are arranged at intervals along the extension direction of the track. Each dual-wheel assembly (1122) includes a first traveling wheel (11221) and a first traveling drive motor (11222). The first traveling drive motor (11222) is disposed on the dual-wheel frame (1121). The first traveling wheel (11221) is rotatably connected to the dual-wheel frame (1121). The output end of the first traveling drive motor (11222) is connected to the first traveling wheel (11221) in a transmission connection. The first traveling drive motor (11222) is configured to drive the first traveling wheel (11221) to rotate. The single-wheel mechanism (113) includes a second traveling wheel (1131) and a second traveling drive motor (1132). The second traveling drive motor (1132) is disposed at the second end of the vehicle body crossbeam (111). The second traveling wheel (1131) is rotatably connected to the second end of the vehicle body crossbeam (111). The second traveling wheel (1131) is located between two first traveling wheels (11221). The output end of the second traveling drive motor (1132) is connected to the second traveling wheel (1131) in a transmission manner. The second traveling drive motor (1132) is configured to drive the second traveling wheel (1131) to rotate.

7. The track measuring device according to claim 6, characterized in that, The vehicle body crossbeam (111) includes a first connecting crossbeam (1111) and a second connecting crossbeam (1112). The end of the first connecting crossbeam (1111) is provided with the two-wheel frame (1121), and the end of the second connecting crossbeam (1112) is provided with the single-wheel mechanism (113). The first connecting crossbeam (1111) and the second connecting crossbeam (1112) are rotatably connected by a pivot. The first connecting crossbeam (1111) has a folded position and an unfolded position relative to the second connecting crossbeam (1112). When the first connecting crossbeam (1111) is in the unfolded position, the first connecting crossbeam (1111) and the second connecting crossbeam (1112) extend sequentially along the extension direction of the vehicle body crossbeam (111). When the first connecting crossbeam (1111) is in the folded position, the first connecting crossbeam (1111) and the second connecting crossbeam (1112) are stacked and arranged. The trolley body (11) also includes a connecting component. When the first connecting beam (1111) is in the unfolded position, the connecting component locks the first connecting beam (1111) and the second connecting beam (1112).

8. The track measuring device according to claim 7, characterized in that, The first connecting beam (1111) is provided with a first magnetic absorbing element (111121), and the second connecting beam (1112) is provided with a second magnetic absorbing element (11121). When the first connecting beam (1111) is in the folded position, the first magnetic absorbing element (111121) and the second magnetic absorbing element (11121) attract each other.

9. The track measuring device according to any one of claims 1 to 8, characterized in that, The track measuring device also includes a support mechanism (9) and a control module (7). The support mechanism (9) and the control module (7) are both installed on the track inspection trolley (1). The support mechanism (9) is used to install the host computer. The track inspection trolley (1), the CCD camera (221), the laser ranging module (222), the dual-axis tilt sensor (3), the track gauge sensor (4), the gyroscope device (5), and the odometer (6) are all connected to the host computer through the control module (7).

10. The track measuring device according to claim 9, characterized in that, The support mechanism (9) includes: A connecting plate (91) is installed on the track inspection trolley (1). Telescopic rod (92), the telescopic rod (92) and the connecting plate (91) are rotatably connected around the moving direction of the track inspection trolley (1); The mounting tray (93) is connected to the top of the telescopic rod (92), and the host computer is mounted on the mounting tray (93).

Images