Rail transit obstacle clearing system and method based on Internet of Things technology

Abstract

The invention belongs to the technical field of rail transit facility obstacle clearance, and particularly relates to a rail transit obstacle clearance system and method based on the Internet of Things technology. A server is arranged at a section station, and data results of ultrasonic distance measuring sensors are transmitted back to the server by means of vehicle-mounted wireless equipment; remote control and supervision based on the Internet of Things technology are realized by combining the foreign matters with actual gravel coverage pictures shot by a camera device on the rail, and meanwhile, the height distance between the foreign matters and a roller base surface or a sensor mounting base surface is monitored in real time by virtue of an arranged ultrasonic distance measuring sensor, so that the accumulated thickness of the foreign matters relative to the surface of the sleeper is judged; and when a preset value is exceeded, a cleaning program is triggered, and cleaning operation is started, so that a relatively good obstacle cleaning effect is ensured, and driving safety is prevented from being harmed.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit facility obstacle removal, and in particular relates to a rail transit obstacle removal system and method based on Internet of Things technology. Background Art

[0002] With the rapid development of railway construction in recent years, railway construction in harsh environmental areas such as the Gobi Desert and desert has also developed greatly. However, with the increase in railway mileage in these areas, how to ensure the safe operation of rail transit has become an urgent problem to be solved.

[0003] In environments such as the Gobi Desert and deserts, due to wind, track facilities are at risk of being buried by the accumulation of slow-moving objects such as sand and gravel brought by the wind. Once the rails are buried, it will seriously threaten the safety of train travel. At present, the main method is to install a push plate at the front position of the inspection train to remove and move the accumulated sand and gravel, such as pushing it to the shoulders on both sides of the track, so as to avoid the burial of the track. The sand and gravel between the rails can only be continuously moved forward by the push plate and overflowed outside the rails, and then pushed to the shoulders by the outer push shovel, which is not efficient and has great travel resistance. Moreover, sand and gravel need to overflow from the rails and are easy to accumulate on the rails. Although the inspection train runs at a low speed, there are still operating risks. Moreover, this method only moves the sand and gravel between the rails to the shoulders, and it is still easy to bury the track facilities again under the action of wind, and the inspection and obstacle removal effect lasts for a short time. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a rail transit obstacle removal system and method based on Internet of Things technology, which can effectively clear invading foreign objects such as sand and gravel accumulated between the tracks, and can ensure a relatively long obstacle removal effect to avoid endangering driving safety.

[0005] The specific technical solution adopted by the present invention is: The rail transit obstacle clearing system based on the Internet of Things technology includes a frame and an obstacle clearing mechanism. The obstacle clearing mechanism is arranged at the front end of the supporting vehicle body with the help of the frame. The obstacle clearing mechanism includes a scraping roller and a throwing mechanism. The scraping roller is a hollow structure. The outer ring side of the scraping roller is provided with a feeding port for foreign matter to enter. The inner ring of the scraping roller is sleeved with a conveying screw. The output end of the conveying screw is connected to the input end of the throwing mechanism. The scraping roller has the freedom to rotate around its own axis with the help of the roller driving mechanism. The foreign matter enters the scraping roller through the feeding port of the scraping roller and enters the throwing mechanism with the help of the conveying screw, and is finally thrown out of the track with the help of the throwing mechanism.

[0006] The scraping roller comprises a plurality of groups of coaxially arranged screw shell barrels, the left and right ends of the screw shell barrels are closed structures and are provided with through holes for conveying screws to pass through, the arc-shaped side walls of the screw shell barrels present a spiral structure along their radial cross-section, and the overlapping parts of the arc side surfaces form a feeding channel of the screw shell barrels, the outer opening of the feeding channel forms a feeding port of the scraping roller, the diameter of the feeding channel is small outside and large inside, and the inner end of the feeding channel is connected to the conveying screw.

[0007] A supporting groove fixed to the frame is arranged below the conveying screw. The supporting groove is a strip-shaped groove structure and passes through the through holes at the left and right ends of the screw shell barrel. The cross-section of the supporting groove is an arc shape. The supporting groove and the conveying screw form a conveying channel for conveying foreign matter.

[0008] The throwing mechanism is provided with a throwing impeller, the throwing impeller is fixedly connected to the conveying screw, the throwing impeller is provided with a circle of throwing blades around the conveying screw, and the throwing impeller rotates synchronously with the conveying screw.

[0009] The outer openings of the feeding channels of the adjacent spiral shell barrels on the scraping roller are staggered.

[0010] The frame includes an extension frame and a mounting frame. The extension frame is hinged to the load-bearing body, and an extension telescopic cylinder for adjusting the swing angle of the extension frame relative to the load-bearing body is provided between the extension frame and the load-bearing body. A scraping roller is provided on the mounting frame. The extension frame is hinged to the mounting frame, and a mounting telescopic cylinder for adjusting the swing angle of the mounting frame relative to the extension frame is provided between the mounting frame and the extension frame.

[0011] The roller driving mechanism is arranged on the mounting frame, the scraping roller is provided with a driving gear ring, the output end of the roller driving mechanism drives the scraping roller to rotate by means of the driving gear ring, and the roller driving mechanism is a hydraulic motor.

[0012] The obstacle removal system also includes an ultrasonic distance measuring sensor arranged on the mounting frame at the front end of the scraping roller, and the load-bearing vehicle body is also provided with a camera device facing the direction of the rails.

[0013] The present application also includes a rail transit obstacle removal method of an obstacle removal system, comprising the following steps: S1. The extension frame and the mounting frame extend to the mounting frame and are placed on the rails with the help of rollers provided thereon; S2. An ultrasonic ranging sensor disposed on a mounting frame detects the cumulative thickness of foreign matter between the rails; S3. When the accumulation of foreign matter exceeds the set safety value, the throwing mechanism is turned on to throw it, and then the scraping roller is turned on to remove the foreign matter.

[0014] The beneficial effects of the present invention are: The present invention adopts the method of setting up a scraping roller to collect the foreign objects invading between the rails into the inside of the scraping roller, and pushes them into the throwing mechanism through the conveying screw arranged inside the scraping roller. With the help of the throwing mechanism, the foreign objects such as sand and gravel are thrown out of the rails, and are pushed away from the rails by the throwing mechanism, thereby effectively clearing the sand and gravel and other invading foreign objects accumulated between the rails, and can ensure a relatively long obstacle removal effect to avoid endangering driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of the obstacle removal system; Figure 3 for Figure 1 Schematic diagram of the left side of the obstacle removal system; Figure 4 This is a schematic diagram of the obstacle removal system when viewed from above; Figure 5 This is a schematic diagram of the internal structure of a snail shell barrel; Figure 6 It is a schematic diagram of the cooperation between the spiral shell barrel and the supporting groove; Figure 7 It is a schematic diagram of the structure of the throwing fan blade and the conveying screw in the throwing mechanism; In the attached drawings, 1. the carrier body, 2. the scraping roller, 3. the throwing mechanism, 4. the feeding port, 5. the conveying screw, 6. the roller driving mechanism, 7. the screw shell barrel, 8. the feeding channel, 9. the supporting groove, 10. the throwing impeller, 11. the throwing blades, 12. the extension frame, 13. the mounting frame, 14. the extending telescopic cylinder, 15. the mounting telescopic cylinder, 16. the driving gear ring, 17. the ultrasonic ranging sensor, and 18. the roller. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments: Specific implementation examples Figure 1 , Figure 2 and Figure 3As shown, the present invention is a rail transit obstacle removal system based on Internet of Things technology, including a frame and an obstacle removal mechanism, wherein the obstacle removal mechanism is arranged at the front end of the supporting vehicle body 1 with the help of the frame, and the obstacle removal mechanism includes a scraping roller 2 and a throwing mechanism 3, wherein the scraping roller 2 is a hollow structure, and the outer ring side of the scraping roller 2 is provided with a feeding port 4 for foreign matter to enter, and the inner ring of the scraping roller 2 is provided with a conveying screw 5, and the output end of the conveying screw 5 is connected to the input end of the throwing mechanism 3, and the scraping roller 2 has the freedom to rotate around its own axis with the help of a roller driving mechanism 6, and the foreign matter enters the scraping roller 2 through the feeding port 4 of the scraping roller 2 and enters the throwing mechanism 3 with the help of the conveying screw 5, and is finally thrown out of the track with the help of the throwing mechanism 3.

[0017] The obstacle removal system of the present invention uses an inspection train as a carrier body 1, and removes invading foreign objects between the rails by being arranged at the front end of the carrier body 1. Specifically, when the obstacle removal mechanism is running, the scraping roller 2 rotates to roll sand and gravel and other foreign objects into the scraping roller 2. The conveying screw 5 is fixed to the main shaft of the throwing mechanism 3 as a whole. With the help of the rotation of the conveying screw 5, the sand and gravel and other foreign objects existing in the scraping roller 2 are transported to the feeding port 4 of the throwing mechanism 3, and the sand and gravel are thrown away with the help of the throwing mechanism 3.

[0018] Furthermore, the scraping roller 2 includes a plurality of coaxially arranged screw shell barrels 7, the left and right ends of the screw shell barrel 7 are closed structures and are provided with through holes for the conveying screw 5 to pass through, the arc-shaped side wall of the screw shell barrel 7 presents a spiral structure along its radial cross-section, and the overlapping part of the arc side surface forms a feeding channel 8 of the screw shell barrel 7, and the outer opening of the feeding channel 8 forms a feeding port 4 of the scraping roller 2. The diameter of the feeding channel 8 is small on the outside and large on the inside, and the inner end of the feeding channel 8 is connected to the conveying screw 5.

[0019] The spiral shell barrel 7 forms independent cavities with its closed left and right ends. The conveying screw 5 crosses the inner cavity of the spiral shell barrel 7 and rotates and takes away the sand and gravel retained in the spiral shell barrel 7. The conveying process is closed and there is no possibility of secondary discharge of sand and gravel, which avoids the formation of dust and fog at the front end of the carrying vehicle body 1 that affects the driving vision. In addition, since the interior of the spiral shell barrel 7 is spirally curled, Figure 5 As shown, the sand and gravel that have entered the spiral shell barrel 7 cannot be output from the feed channel 8 again due to gravity and the rotation of the spiral shell barrel 7, thereby avoiding leakage. At the same time, the sand and gravel will be accumulated at the conveying screw 5 along with the internal spiral structure of the spiral shell barrel 7, which makes it easier for the conveying screw 5 to deliver the sand and gravel, thereby improving the conveying efficiency.

[0020] Furthermore, a supporting groove 9 fixed to the frame is provided below the conveying screw 5. The supporting groove 9 is a strip-shaped groove structure and passes through the through holes at the left and right ends of the screw shell barrel 7. The cross-section of the supporting groove 9 is an arc shape. The supporting groove 9 and the conveying screw 5 form a conveying channel for conveying foreign matter.

[0021] The conveying channel is formed by means of the supporting groove 9 to further improve the conveying efficiency of sand and gravel.

[0022] Furthermore, a throwing impeller 10 is provided in the throwing mechanism 3 , and the throwing impeller 10 is fixedly connected to the conveying screw 5 . The throwing impeller 10 is provided with a circle of throwing blades 11 around the conveying screw 5 , and the throwing impeller 10 rotates synchronously with the conveying screw 5 .

[0023] The side wall of the throwing mechanism 3 is provided with a through hole for the conveying screw 5 to pass through. The shell of the throwing mechanism 3 is fixedly connected to the mounting frame 13. The throwing impeller 10 rotates synchronously with the conveying screw 5 so that the sand and gravel in the screw shell barrel 7 are drawn into the throwing mechanism 3 through the through hole. The sand and gravel are accelerated by the throwing impeller 10 and discharged from the throwing pipe provided on the throwing mechanism 3 to the outside of the equipment. Due to the effect of inertia, the sand and gravel can be thrown a long distance, thereby improving the duration of the cleaning effect.

[0024] Furthermore, the outer openings of the feeding channels 8 of the adjacent screw shell barrels 7 on the scraping roller 2 are staggered, so that the feeding timings of different screw shell barrels 7 on the scraping roller 2 are staggered, and the inspection train travels at a slow speed, so that the screw shell barrels 7 have more sufficient time to shovel in the material and reduce the driving resistance.

[0025] Furthermore, the frame includes an extension frame 12 and a mounting frame 13, the extension frame 12 is hinged to the carrier body 1, and an extension telescopic cylinder 14 for adjusting the swing angle of the extension frame 12 relative to the carrier body 1 is also provided between the extension frame 12 and the carrier body 1, a scraping roller 2 is provided on the mounting frame 13, the extension frame 12 is hinged to the mounting frame 13, and a mounting telescopic cylinder 15 for adjusting the swing angle of the mounting frame 13 relative to the extension frame 12 is also provided between the mounting frame 13 and the extension frame 12.

[0026] like Figure 4 As shown, the obstacle removal mechanism of the present application is lifted or lowered from the rail by means of the extension frame 12, and the degree of fit with the rail is adjusted by means of the provided mounting frame 13, so as to facilitate the cleaning of foreign objects in the gap between the rails. Figure 4 When the extension telescopic cylinder 14 is extended or retracted, the extension frame 12 is swung or oriented relative to the rail, and when the installation telescopic cylinder 15 is extended or retracted, the installation frame 13 is swung relative to the extension frame 12, so that the obstacle removal mechanism can better fit the rail.

[0027] Furthermore, the roller driving mechanism 6 is arranged on the mounting frame 13, and the scraping roller 2 is provided with a driving ring gear 16. The output end of the roller driving mechanism 6 drives the scraping roller 2 to rotate by means of the driving ring gear 16, and the roller driving mechanism 6 is a hydraulic motor.

[0028] Hollow shaft sleeves are respectively arranged at both ends of the scraping roller 2, and the two sides of the scraping roller 2 are hinged to the mounting frame 13 by means of the hollow shaft sleeves. The conveying screw 5 passes through the inside of the hollow shaft sleeve. A driving gear ring 16 is arranged on the outer wall of the hollow shaft sleeve, and the scraping roller 2 is driven by means of the meshing of the hydraulic motor and the driving gear ring 16.

[0029] Furthermore, the obstacle removal system also includes an ultrasonic distance measuring sensor 17 arranged on the mounting frame 13 at the front end of the scraping roller 2, and the supporting vehicle body 1 is also provided with a camera device facing the direction of the rails.

[0030] The present application sets up a server at the section station, transmits the data results of the ultrasonic ranging sensor 17 back to the server through the vehicle-mounted wireless device, and combines the actual sand and gravel coverage image on the rail taken by the camera device to realize remote control and supervision based on the Internet of Things technology. At the same time, with the help of the set ultrasonic ranging sensor 17, the height distance between the foreign object and the base surface of the roller 18 or the sensor installation base surface is monitored in real time, and then the cumulative thickness of the foreign object relative to the surface of the sleeper is determined. When it exceeds the preset value, the cleaning program is triggered to start the cleaning operation.

[0031] The rail traffic obstacle clearing method of the obstacle clearing system comprises the following steps: S1. The extension frame 12 and the mounting frame 13 extend to the mounting frame 13 and are placed on the rails with the aid of rollers 18 disposed thereon; S2. The ultrasonic ranging sensor 17 disposed on the mounting frame 13 detects the cumulative thickness of foreign matter between the rails; S3. When the accumulation of foreign matter exceeds the set safety value, the throwing mechanism 3 is turned on to throw, and then the scraping roller 2 is turned on to remove the foreign matter.

Claims

1. A rail transit obstacle removal system based on the Internet of Things technology, comprising a frame and an obstacle removal mechanism, wherein the obstacle removal mechanism is arranged at the front end of a supporting vehicle body (1) with the aid of the frame, and is characterized in that: The obstacle removal mechanism comprises a scraping roller (2) and a throwing mechanism (3); the scraping roller (2) is a hollow structure; an inlet (4) for foreign matter to enter is arranged on the outer ring side of the scraping roller (2); a conveying screw (5) is sleeved on the inner ring of the scraping roller (2); the output end of the conveying screw (5) is connected to the input end of the throwing mechanism (3); the scraping roller (2) has the freedom to rotate around its own axis by means of a roller driving mechanism (6); the foreign matter enters the scraping roller (2) through the inlet (4) of the scraping roller (2) and enters the throwing mechanism (3) by means of the conveying screw (5); and is finally thrown out of the track by means of the throwing mechanism (3).

2. The rail transit obstacle removal system based on Internet of Things technology according to claim 1 is characterized in that: The scraping roller (2) comprises a plurality of groups of coaxially arranged screw shell barrels (7), the left and right ends of the screw shell barrel (7) are closed structures and are provided with through holes for the conveying screw (5) to pass through, the arc-shaped side wall of the screw shell barrel (7) presents a spiral structure along its radial cross section, and the overlapping part of the arc side surface forms a feed channel (8) of the screw shell barrel (7), the outer opening of the feed channel (8) forms a feed port (4) of the scraping roller (2), the diameter of the feed channel (8) is small on the outside and large on the inside, and the inner end of the feed channel (8) is connected to the conveying screw (5).

3. The rail transit obstacle removal system based on Internet of Things technology according to claim 2 is characterized in that: A supporting groove (9) fixed to the frame is provided below the conveying screw (5); the supporting groove (9) is a strip-shaped groove structure and passes through the through holes at the left and right ends of the screw shell barrel (7); the cross section of the supporting groove (9) is an arc shape; the supporting groove (9) and the conveying screw (5) form a conveying channel for conveying foreign matter.

4. The rail transit obstacle removal system based on Internet of Things technology according to claim 1 is characterized in that: The throwing mechanism (3) is provided with a throwing impeller (10), the throwing impeller (10) is fixedly connected to the conveying screw (5), the throwing impeller (10) is provided with a circle of throwing blades (11) around the conveying screw (5), and the throwing impeller (10) rotates synchronously with the conveying screw (5).

5. The rail transit obstacle removal system based on Internet of Things technology according to claim 2 is characterized in that: The outer openings of the feeding channels (8) of the adjacent spiral shell barrels (7) on the scraping roller (2) are arranged in a staggered manner.

6. The rail transit obstacle removal system based on Internet of Things technology according to claim 2 is characterized in that: The frame comprises an extension frame (12) and a mounting frame (13); the extension frame (12) is hinged to the carrier body (1), and an extension telescopic cylinder (14) for adjusting the swing angle of the extension frame (12) relative to the carrier body (1) is provided between the extension frame (12) and the carrier body (1); a scraping roller (2) is provided on the mounting frame (13); the extension frame (12) is hinged to the mounting frame (13), and a mounting telescopic cylinder (15) for adjusting the swing angle of the mounting frame (13) relative to the extension frame (12) is provided between the mounting frame (13) and the extension frame (12).

7. The rail transit obstacle removal system based on Internet of Things technology according to claim 6 is characterized in that: The roller drive mechanism (6) is arranged on the mounting frame (13), and a driving ring gear (16) is arranged on the scraping roller (2). The output end of the roller drive mechanism (6) drives the scraping roller (2) to rotate by means of the driving ring gear (16), and the roller drive mechanism (6) is a hydraulic motor.

8. The rail transit obstacle removal system based on Internet of Things technology according to claim 6 is characterized in that: The obstacle removal system further comprises an ultrasonic distance measuring sensor (17) arranged on the mounting frame (13) at the front end of the scraping roller (2), and the supporting vehicle body (1) is further provided with a camera device facing the direction of the rails.

9. A rail transit obstacle removal method based on the obstacle removal system of claim 8, characterized in that: The steps include: S1. The extension frame (12) and the mounting frame (13) extend to the mounting frame (13) and are placed on the rails by means of rollers (18) provided thereon; S2. An ultrasonic ranging sensor (17) disposed on a mounting frame (13) detects the cumulative thickness of foreign matter between the rails; S3. When the accumulation of foreign matter exceeds the set safety value, the throwing mechanism (3) is turned on to throw the foreign matter, and then the scraping roller (2) is turned on to remove the foreign matter.

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