Traffic track detection device

Abstract

The invention discloses a traffic track detection device, comprising a base, a detection box is arranged on the base, a first storage platform is arranged in the detection box, two support plates are arranged on the first storage platform, the two support plates are rotatably connected with transmission wheels, conveyor belts are sleeved on the two transmission wheels, tracks are placed on the conveyor belts, light sources and linear array cameras are arranged in the detection boxes on both sides of the conveyor belts, and an ultrasonic flaw detection device is arranged on the conveyor belt. The invention can accurately obtain the surface defects and internal defects of the track, and can also simulate the bearing conditions and crack conditions of the track in a humid and hot environment and under different pressure environments, analyze the overall performance of the track, and provide a theoretical basis for further improvement and adjustment of the track material.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transportation, and in particular relates to a transportation track detection device. Background Art

[0002] my country has entered the era of high-speed and heavy-load railways. With the development of railway transportation becoming more and more mature, the increase in train speed and load has led to higher and higher requirements for train tracks. The surface defects and wear resistance of rails seriously affect the stability and safety of train operation. How to detect and control surface defects in the rail production process has become the main task of quality improvement for rail companies.

[0003] At present, the main tests for rail shape, temperature stress and cracks are carried out during rail production. The operation of the testing instruments is complex and the measurement speed is slow. The coupling effect between the probe and the track is poor during internal defect detection, and the measurement accuracy is low. In addition, the working environment of the rails is relatively complex during service, including salt spray erosion in coastal cities and the influence of high-altitude climate and terrain. The existing testing equipment is unable to simulate the service environment of the rails, and then conduct systematic testing and overall analysis of their performance, resulting in low reliability of the rail inspection results. Summary of the invention

[0004] The purpose of the present invention is to provide a traffic track detection device, which has a simple structure and is easy to operate. The detection results are accurate when the device is used to detect internal defects and surface defects of the track. The present invention can also simulate different humidity, heat and pressure environments, comprehensively analyze the overall performance of the track, and provide a theoretical basis for the improvement of the track.

[0005] The technical solution adopted by the present invention is that the traffic track detection device includes a base, a detection box is provided on the base, a first storage platform is provided in the detection box, support plates are fixed at both ends of the top surface of the first storage platform, the two support plates are respectively rotatably connected with the central axis of a transmission wheel, a conveyor belt is sleeved on the two transmission wheels, the central axis of one of the transmission wheels is connected with the output shaft of the motor, the motor is fixed on the first storage platform, a track is placed on the conveyor belt, electric telescopic rods a are fixed to the side walls of the detection box on both sides of the track, the two electric telescopic rods a are rotatably connected to a light source at one end close to the track, linear array cameras are provided on the side walls of the detection box on both sides of the track and the top of the detection box, and the linear array camera and the light source are located in the same longitudinal plane;

[0006] An ultrasonic flaw detection device is fixed on the first storage table, and the ultrasonic flaw detection device includes a p-shaped support frame, and the support frame cover is arranged outside the conveyor belt and the track, and the three inner side walls of the support frame are fixed with electric telescopic rods b, and the three electric telescopic rods b are fixed to the probe bracket at one end close to the track, and the shape of the probe bracket is similar to that of the track, and a plurality of ultrasonic probes are arranged on the side of the probe bracket close to the track;

[0007] The base is provided with a power supply and a controller, and the power supply is respectively connected to the electric telescopic rod a, the motor, the light source, the linear array camera, the ultrasonic probe, and the electric telescopic rod b to supply power to them, and the electric telescopic rod b, the linear array camera, and the ultrasonic probe are all connected to the controller.

[0008] Furthermore, the probe bracket is composed of a bracket a and a bracket b, and an electric telescopic rod b is provided between the bracket a, the bracket b and the support frame. One end of the bracket a is sleeved in the bracket b, and a spring is provided between the end of the bracket a and the side wall of the bracket b; the two side walls of the support frame are provided with slide grooves, and the two slide grooves are respectively located on both sides of the conveyor belt and perpendicular to the conveyor belt. The other end of the bracket a and the other end of the bracket b are respectively slidably connected in the slide grooves, and a pad and a telescopic spring are provided between the bracket a, the bracket b and the bottom end of the slide groove.

[0009] Furthermore, a plurality of laser rangefinders are provided on one side of the probe bracket close to the track, and the laser rangefinders are respectively connected to the controller and the power supply.

[0010] Furthermore, a second storage table is provided in the detection box on both sides of the first storage table, and two rows of buckle plates are hinged on the second storage table, the spacing between the two rows of buckle plates is greater than or equal to the width of the bottom of the track, and the buckle plates are provided with threaded through holes; a through slot is provided on the top of the detection box, and the pressure head extends into the detection box through the through slot, and the end of the pressure head is detachably connected to the top of the connecting plate, and a rotating shaft is fixed at the bottom of the connecting plate, and grinding wheels are rotatably connected to both ends of the rotating shaft, and the rotating surfaces of the two grinding wheels are respectively located between the two rows of buckle plates of the two second storage tables.

[0011] Furthermore, a storage box is provided on the base, the outlet of the storage box is connected to one end of the pipeline, a through pipe is passed through the side wall of the detection box, the other end of the pipeline passes through the through pipe and is fixed to the nozzle, a pressure sensor and a humidity sensor are fixed in the detection box, the power cords of the pressure sensor and the humidity sensor are connected to the power supply, and the pressure sensor and the humidity sensor are also connected to the controller.

[0012] Furthermore, a rack is provided below the part of the through pipe extending out of the detection box, and limit blocks are provided on the through pipe at both ends of the rack. The rack is meshed with a gear plate, and the central axis of the gear plate is connected to the output shaft of the forward and reverse motor. The forward and reverse motor is fixed on the outside of the detection box and connected to a power supply.

[0013] Furthermore, a heating resistor is provided in the side wall of the detection box, a temperature sensor is fixed in the detection box, the power supply is respectively connected to the temperature sensor and the heating resistor to supply power to them, and the temperature sensor is also connected to the controller.

[0014] Furthermore, the model of the controller is ATMEGA16.

[0015] Furthermore, the model of the humidity sensor is HR06.

[0016] Furthermore, the temperature sensor is a PT100 temperature sensor.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention arranges the light source and the linear array camera in the same longitudinal plane, so that the obtained track surface image has no shadow and a complete structure, and uses the electric telescopic rod b to timely adjust the distance between the ultrasonic probe and the track, so that the ultrasonic probe is well coupled with the track surface, which can meet the rail head, rail waist and rail bottom detection of tracks of various sizes, and the surface defect and internal defect detection results of the track are accurate; 2. The present invention can simulate the service environment of humidity, salt, alkali, etc., comprehensively detect the wear resistance and temperature stress of the track, and comprehensively analyze the overall performance of the track in combination with the surface defect and internal defect detection, so as to provide a basis for railway track performance detection and design parameter improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is the overall structural diagram of the present invention.

[0020] Figure 2 It is the internal structure diagram of the present invention.

[0021] Figure 3 yes Figure 1 Cross-section of AA.

[0022] Figure 4 It is a structural diagram of the ultrasonic flaw detection device.

[0023] Figure 5 yes Figure 2 Enlarged view of B.

[0024] Figure 6 yes Figure 4 Enlarged view of C in the middle.

[0025] Figure 7 yes Figure 6 Cross-sectional view at point D in the middle.

[0026] In the figure: 1. base, 2. detection box, 3. controller, 4. power supply, 5. storage box, 6. first storage table, 7. second storage table, 8. support plate, 9. conveyor belt, 10. light source, 11. linear array camera, 12. pressure head, 13. grinding wheel, 14. motor, 15. buckle plate, 16. temperature sensor, 17. humidity sensor, 18. pressure sensor, 19. heating resistor, 20. gear plate, 21. limit block, 22. support frame, 23. probe bracket, 24. electric telescopic rod b, 25. ultrasonic probe, 26. laser rangefinder, 27. pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1 As shown, the traffic track detection device includes a base 1, a controller 3 and a power supply 4 are fixed on the base 1, a detection box 2 is arranged on the top of the base 1, a transparent observation window is arranged on the front of the detection box 2, a through slot is arranged on the top of the detection box 2, and a sealing plate is detachably installed in the through slot; Figure 2 , Figure 3 As shown, a first storage table 6 is provided in the detection box 2, and a support plate 8 is fixed at both ends of the top surface of the first storage table 6. The two support plates 8 are respectively rotatably connected to the central axis of a transmission wheel. A conveyor belt 9 is sleeved on the two transmission wheels, and the central axis of one of the transmission wheels is connected to the output shaft of a motor 14. The motor 14 is fixed on the first storage table 6, and a track is placed on the conveyor belt 9. Electric telescopic rods a are fixed to the side walls of the detection box 2 on both sides of the track, and the electric telescopic rod a is rotatably connected to one end of the track. Linear array cameras 11 are provided on the side walls of the detection box 2 on both sides of the track and on the top of the detection box 2. The linear array camera 11 and the light source 10 are located in the same longitudinal plane. The signal output end of the linear array camera 11 is connected to the controller 3, and the power supply 4 is respectively connected to the electric telescopic rod a, the motor 14, the linear array camera 11, and the light source 10 to supply power to them.

[0029] like Figure 4 As shown, an ultrasonic flaw detection device is fixed on the first storage table 6, and the ultrasonic flaw detection device includes a p-shaped support frame 22, and the support frame 22 is covered on the outside of the conveyor belt 9 and the track. The three inner side walls of the support frame 22 are fixed with electric telescopic rods b24, and the electric telescopic rod b24 is fixed to the probe bracket 23 at one end close to the track. The shape of the probe bracket 23 is similar to that of the track. A plurality of ultrasonic probes 25 and a laser rangefinder 26 are provided on the side of the probe bracket 23 close to the track; Figure 6As shown, the probe bracket 23 is composed of a bracket a and a bracket b, and an electric telescopic rod b24 is provided between the bracket a, the bracket b and the support frame 22. One end of the bracket a is slidably connected in the bracket b, and a spring is provided between the end of the bracket a and the side wall of the bracket b. The two inner side walls of the support frame 22 are provided with a slide groove, and the two slide grooves are respectively located on both sides of the conveyor belt 9 and are perpendicular to the conveyor belt 9. The other end of the bracket a and the other end of the bracket b are respectively slidably connected in the slide groove, and a pad 27 and a telescopic spring are provided between the bracket a, the bracket b and the bottom end of the slide groove. Figure 7 The electric telescopic rod b24 is shown to be extended and retracted. When the distance between bracket a, bracket b and the side of the track is adjusted, the ends of bracket a and bracket b can move left and right on the pad 27. When the electric telescopic rod b24 drives bracket a and bracket b to adjust their distance from the top of the track, the ends of bracket a and bracket b slide up and down in the slide groove.

[0030] A second storage table 7 is provided in the detection box 2 on both sides of the first storage table 6, and two rows of buckle plates 15 are hinged on the two second storage tables 7. The spacing between the two rows of buckle plates 15 is greater than or equal to the width of the bottom of the track. The buckle plates 15 are provided with threaded through holes. The pressure head 12 of the pressure testing machine passes through the through slot at the top of the detection box 2 and extends into the detection box 2. The end of the pressure head 12 is detachably connected to the top of the connecting plate, the bottom of the connecting plate is fixed to the connecting shaft, and both ends of the connecting shaft are rotatably connected to the grinding wheel 13. The rotating surfaces of the two grinding wheels 13 are respectively located between the two rows of buckle plates 15 on the two second storage tables 7.

[0031] A storage box 5 is provided on the base 1, and the outlet of the storage box 5 is connected to one end of the pipeline. Figure 5 As shown, a through pipe is passed through the side wall of the detection box 2, and the other end of the pipe passes through the through pipe and is fixed to the nozzle. A rack is provided at the bottom of the through pipe located on the outside of the detection box 2, and limit blocks 21 are provided on the through pipes at both ends of the rack. The rack is meshed with a gear plate 20, and the central axis of the gear plate 20 is connected to the output shaft of the forward and reverse motor, and the forward and reverse motor is fixed on the outside of the detection box 2; a pressure sensor 18 and a humidity sensor 17 are provided in the detection box 2, and the power supply 4 is respectively connected to the pressure sensor 18 and the humidity sensor 17 to power them, and the pressure sensor 18 and the humidity sensor 17 transmit the detection data to the controller 3 for storage.

[0032] A heating resistor 19 and a temperature sensor 16 are also provided in the detection box 2. The power supply 4 is connected to the temperature sensor 16 and the heating resistor 19 to supply power to them. The temperature sensor 16 transmits the detection data to the controller 3 for storage.

[0033] The model of the controller 3 is ATMEGA16, the temperature sensor 16 is a PT100 temperature sensor, and the model of the humidity sensor 17 is HR06.

[0034] When the present invention is used to detect surface defects and internal defects of a traffic track, the track is first placed on a conveyor belt 9, the power of the light source 10 and the linear array camera 11 is turned on, the motor 14 is started, the motor 14 drives the transmission wheel to rotate, and then drives the track on the conveyor belt 9 to move forward, the light source 10 is evenly irradiated on the track surface, four groups of linear array cameras 11 are used to collect surface images of the track from different directions in a time series, and the images are transmitted to the controller 3 for storage and processing, so as to obtain the shape defects of the track such as scratches, depressions, protrusions, etc.; when the track moves to the inner side of the support frame 22, the laser rangefinder 26 is started, the laser rangefinder 26 detects the distance between the probe bracket 23 and the top and side of the track, and inputs the detection data into the controller 3, the controller 3 compares the distance data with the working distance of the ultrasonic probe 25, and controls the extension or extension of the electric telescopic rod b24 according to the comparison result. Contraction, and then adjust the distance between each ultrasonic probe 25 on the inner side of the probe bracket 23 and the track. When the probe bracket 23 moves up and down, bracket a and bracket b slide in the slide groove inside the support frame 22 respectively. When bracket a and bracket b move left and right, bracket a slides in bracket b. One end of bracket a and bracket b extends into the support frame 22 and moves left and right on the pad 27 in the slide groove. The telescopic spring and the spring can support bracket a and bracket b to keep them stable, so that the coupling effect of the ultrasonic probe 25 and various parts of the track is better, the detection result is more accurate, and the internal defects of tracks of different sizes can also be detected. The present invention places the linear array camera 11 and the light source 10 in the same longitudinal plane, and the surface image obtained has no shadow and a complete structure. The probe bracket 23 is used to adjust the coupling effect of the ultrasonic probe 25 and the track surface in real time, so that the surface detection result and the internal flaw detection result of the track are more accurate.

[0035] When the present invention is used to detect the wear resistance of the track, the track is placed between two rows of buckle plates 15 on two second storage tables 7, the buckle plates 15 are rotated to align the threaded through holes on the buckle plates 15 with the threaded holes on the track, the track is fixed to the second storage table 7 with bolts and nuts, the sealing plate in the through groove is taken out, the pressure head 12 of the pressure testing machine is extended into the detection box 2, the connecting plate and the grinding wheel 13 are installed on the pressure head 12, the pressure testing machine is started to move the pressure head 12 in the through groove, and then the grinding wheel 13 is driven to move on the track to rub the track, after the friction is completed, the track is disassembled and placed on the conveyor belt 9, the surface image and internal cracks, strains, etc. of the track are detected, and then the wear performance of the track is determined according to the friction time, friction force and wear conditions.

[0036] The process of using the present invention to detect the temperature stress of the track is as follows: before the detection begins, the pressure head 12 is taken out, the sealing plate is installed in the through groove, the track is placed on the conveyor belt 9, the power supply of the heating resistor 19 is turned on, the temperature of the environment in which the track is located is adjusted, and the temperature sensor 16 is used to detect the temperature in the detection box 2 in real time. The motor 14 and the ultrasonic probe 25 are turned on to detect the strain conditions at various locations inside the track at various temperatures to determine the temperature stress of the track and the use environment.

[0037] The present invention can also be used to detect the corrosion resistance and pressure resistance of the track. During the detection, the track is placed on the conveyor belt 9, the sealing plate in the through groove is fastened, and the acid, alkali and salt solutions are sprayed into the detection box 2 through the storage box 5 and the nozzle, so that the track is in various possible working environments, and the surface defects and internal defects of the track are detected. The humidity sensor 17 is used to detect the humidity changes in the detection box 2 in real time to judge the corrosion resistance of the track; the storage box 5 and the nozzle are used to spray gas into the detection box 2 to change the pressure in the detection box 2, so that the track is under different pressures, and the surface defects and internal defects of the track are detected. The pressure sensor 18 is used to detect the pressure in the detection box 2 in real time to understand the performance changes of the track under different pressures.

[0038] During the corrosion resistance and pressure resistance test, the forward and reverse motors can also be started to drive the rack to move through the gear plate 20, thereby adjusting the length of the through pipe extending into the test box 2, so that the water mist or gas sprayed from the spray port is evenly distributed in the test box 2, the effect on the track is also more uniform, and the test result is more reliable.

[0039] The device of the present invention has a simple structure and is easy to operate. The surface defects and internal defects of the track can be detected by using the present invention, and the detection result is more accurate. The present invention can also simulate the service environment of the track (such as different temperatures, different acid and alkali, different pressure environments, etc.), combine the surface defect and internal defect detection, respectively detect the temperature stress, wear resistance, corrosion resistance, etc. of the track, comprehensively analyze the overall performance of the track, have a deeper understanding of the use environment and performance of the track, and provide a theoretical basis for the performance detection and design parameter improvement of the railway track.

[0040] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A traffic track detection device, characterized in that: The invention comprises a base (1), a detection box (2) being provided on the base (1), a first storage platform (6) being provided in the detection box (2), support plates (8) being fixed at both ends of the top surface of the first storage platform (6), the two support plates (8) being respectively rotatably connected to the central axis of a transmission wheel, a conveyor belt (9) being sleeved on the two transmission wheels, the central axis of one of the transmission wheels being connected to the output shaft of a motor (14), the motor (14) being fixed on the first storage platform (6), a track being placed on the conveyor belt (9), electric telescopic rods a being fixed to the side walls of the detection box (2) on both sides of the track, the two electric telescopic rods a being rotatably connected to a light source (10), the side walls of the detection box (2) on both sides of the track and the top of the detection box (2) being provided with linear array cameras (11), the linear array cameras (11) and the light source (10) being located in the same longitudinal plane; An ultrasonic flaw detection device is fixed on the first storage table (6), and the ultrasonic flaw detection device includes a p-shaped support frame (22), the support frame (22) is covered on the outside of the conveyor belt (9) and the track, and three inner side walls of the support frame (22) are fixed with electric telescopic rods b (24), and the three electric telescopic rods b (24) are fixed to the probe bracket (23) near one end of the track, and the shape of the probe bracket (23) is similar to that of the track. A plurality of ultrasonic probes (25) are provided on the side of the probe bracket (23) near the track; The base (1) is provided with a power supply (4) and a controller (3); the power supply (4) is respectively connected to the electric telescopic rod a, the motor (14), the light source (10), the linear array camera (11), the ultrasonic probe (25), and the electric telescopic rod b (24) to supply power to them; and the electric telescopic rod b (24), the linear array camera (11), and the ultrasonic probe (25) are all connected to the controller (3); The probe bracket (23) is composed of a bracket a and a bracket b, and an electric telescopic rod b (24) is provided between the bracket a, the bracket b and the support frame (22), one end of the bracket a is sleeved in the bracket b, and a spring is provided between the end of the bracket a and the side wall of the bracket b; the two side walls of the support frame (22) are provided with a slide groove, and the two slide grooves are respectively located on both sides of the conveyor belt (9) and are perpendicular to the conveyor belt (9), the other end of the bracket a and the other end of the bracket b are respectively slidably connected in the slide groove, and a pad (27) and a telescopic spring are provided between the bracket a, the bracket b and the bottom end of the slide groove; A plurality of laser rangefinders (26) are provided on one side of the probe bracket (23) close to the track, and the laser rangefinders (26) are respectively connected to the controller (3) and the power supply (4).

2. The traffic track detection device according to claim 1, characterized in that: A second storage platform (7) is provided in the detection box (2) on both sides of the first storage platform (6), and two rows of buckle plates (15) are hinged on the second storage platform (7), the spacing between the two rows of buckle plates (15) is greater than or equal to the width of the bottom of the track, and the buckle plates (15) are provided with threaded through holes; a through slot is provided on the top of the detection box (2), and the pressure head (12) passes through the through slot and extends into the detection box (2), and the end of the pressure head (12) is detachably connected to the top of the connecting plate, and a rotating shaft is fixed at the bottom of the connecting plate, and grinding wheels (13) are rotatably connected at both ends of the rotating shaft, and the rotating surfaces of the two grinding wheels (13) are respectively located between the two rows of buckle plates (15) of the two second storage platforms (7).

3. The traffic track detection device according to claim 1, characterized in that: The base (1) is provided with a storage box (5), the outlet of the storage box (5) is connected to one end of the pipeline, a through pipe is passed through the side wall of the detection box (2), the other end of the pipeline passes through the through pipe and is fixed to the nozzle, a pressure sensor (18) and a humidity sensor (17) are fixed in the detection box (2), power lines of the pressure sensor (18) and the humidity sensor (17) are connected to the power supply (4), and the pressure sensor (18) and the humidity sensor (17) are also connected to the controller (3).

4. The traffic track detection device according to claim 3, characterized in that: A rack is provided below the portion of the through pipe extending out of the detection box (2), and limit blocks (21) are provided on the through pipe at both ends of the rack. The rack meshes with a gear plate (20), and the central axis of the gear plate (20) is connected to the output shaft of a forward and reverse motor. The forward and reverse motor is fixed outside the detection box (2), and the forward and reverse motor is connected to a power source (4).

5. The traffic track detection device according to claim 1, characterized in that: A heating resistor (19) is provided in a side wall of the detection box (2), a temperature sensor (16) is fixed in the detection box (2), the power supply (4) is respectively connected to the temperature sensor (16) and the heating resistor (19) to supply power to them, and the temperature sensor (16) is also connected to the controller (3).

6. The traffic track detection device according to claim 1, characterized in that: The model of the controller (3) is ATMEGA16.

7. The traffic track detection device according to claim 3, characterized in that: The model of the humidity sensor (17) is HR06.

8. The traffic track detection device according to claim 5, characterized in that: The temperature sensor (16) is a PT100 type temperature sensor.

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