Device and method for detecting wear of rigid contact line of subway
By designing a wear detection device for rigid contact lines in the subway, using carbon skateboards to maintain contact and paint marking wear, the problem of difficulty in detection and marking in the prior art is solved, the detection efficiency and maintenance efficiency are improved, and the railway safety is ensured.
Patent Information
- Application Number
- CN202510599317.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-10
- Publication Date
- 2025-08-01
AI Technical Summary
The prior art is difficult to efficiently and at low cost to detect and mark contact lines wear degree, and it is difficult to automatically mark line segments that need to be replaced or polished, affecting the safe operation of the railway.
A subway rigid contact line wear detection device is designed, including a mobile car, a lifting mechanism, a marking mechanism and an oil wiping mechanism. It maintains contact through a carbon skateboard, uses displacement sensors and spray paint to mark the wear degree, and scrapes away contaminated conductive grease through the oil wiping mechanism and applies new grease.
It realizes efficient detection and marking of contact line wear, improves maintenance efficiency, ensures safe operation of railways, and extends the service life of contact line.
Smart Images
Figure CN120403534A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rigid catenary detection, and specifically to a subway rigid catenary wear detection device and method. Background Art
[0002] A electric locomotive obtains electric energy from the catenary mainly by the sliding contact between the pantograph slider on the top of the locomotive and the catenary. In the contact between the pantograph and the catenary, if the contact pressure is too large, it will increase the abnormal wear of the pantograph and the catenary and shorten their service life; if the contact pressure is too small, the power supply between the pantograph and the catenary will be intermittent, increasing the electrical wear, and even causing an electric arc to burn the catenary. Due to the continuous friction between the catenary and the pantograph, wear occurs on the surface of the catenary, which will affect the stability of the traction power supply system. And when the wear degree exceeds a certain limit, it will directly affect the normal operation of the train, and may even lead to an operation accident in severe cases. In the electrified railway system, the wear detection of the catenary is one of the key technologies to ensure the safe operation of the railway. According to the "High-speed Rail Catenary Maintenance Operation Guide", a warning should be issued when the wear amount of the catenary reaches 15%, and it needs to be replaced when it exceeds 20%. Therefore, strengthening the monitoring of the catenary, especially the wear condition of the catenary, is of great significance for maintaining the operation safety of the electrified railway and improving the maintenance quality of the traction power supply system.
[0003] At present, there are already a variety of detection technologies applied to monitor the wear condition of the catenary. Each technology has its own advantages and limitations based on different physical principles. The main detection methods used are: non-contact detection such as image recognition, laser detection, implanted optical fiber warning, neural network prediction, etc. The image processing method relies on lighting and camera technology to detect the wear state of the catenary. The biggest advantage of this method is high detection accuracy, which can reach a high precision of ±0.2mm, and it can also perform live detection, avoiding the interruption of railway operation caused by power-off detection. However, in the image recognition detection method, a line array camera, a line laser, and various sensors are used, so the cost of the detection equipment is relatively high, and the detection process is easily affected by external environmental factors such as weather and lighting conditions. This requires light compensation processing, and the time delay of image processing also reduces its timeliness. After the wear degree is detected, maintenance personnel need to grind or replace the segments of the rigid catenary with a large wear amount. However, the existing detection devices are difficult to automatically mark the segments with severe wear detected, and maintenance personnel cannot intuitively see which segments need to be ground or which need to directly replace the rigid catenary.
[0004] The application of conductive oil (conductive grease or conductive lubricating grease) on the rigid contact wire is mainly to improve the conductivity and reduce wear. After long-term use, the conductive oil will contain dust impurities or metal or carbon powder particles generated by friction with the pantograph. The rolling of these impurities on the contact surface will exacerbate the wear of the contact surface. Therefore, it is necessary to regularly maintain the conductive oil on the rigid contact wire. Summary of the Invention
[0005] The purpose of the present invention is to provide a wear detection device and method for subway rigid contact wires to solve the problems raised in the above background technology.
[0006] To achieve the above purpose, the present invention provides the following technical solutions:
[0007] A wear detection device for subway rigid contact wires, comprising:
[0008] A mobile trolley, which is used to drive the detection device to move on the subway track;
[0009] A lifting mechanism, which is used to raise the detection structure to the height of the busbar or lower the height of the detection structure for storage;
[0010] A marking mechanism, which is used to detect the wear amount of the rigid contact wire and mark the wear degree by spraying paint. The marking mechanism includes a liquid storage tank. The input end of a suction pump is fixedly connected to the top of the liquid storage tank. The output end of the suction pump is fixedly connected to a right-angle pipe. The end of the right-angle pipe is fixedly connected to a sector nozzle. A triangular shell is fixedly sleeved outside the sector nozzle. A round cover is fixedly connected in the right-angle pipe. A blocking round plate is rotatably connected in the round cover. A communication groove is opened on the blocking round plate. The output end of a driving motor is fixedly connected to the central position of the blocking round plate. A column is fixedly connected between the driving motor and the suction pump;
[0011] An oiling mechanism, which is used to scrape off the contaminated conductive grease on the surface of the rigid contact wire and apply new conductive grease at the same time.
[0012] Furthermore, the lifting mechanism includes a lifting platform fixedly connected to the top of the moving trolley. The lifting platform is a scissor-type lifting structure. A support plate is fixedly connected to the top of the lifting platform. Two C-shaped frames are symmetrically and fixedly connected to the top of the support plate. Two limiting grooves are symmetrically formed on each of the two C-shaped frames. A moving seat is slidably and embeddedly connected in the limiting grooves. Two cylinders fixedly connected to the moving seat are symmetrically and fixedly connected to the inner side walls of the C-shaped frames. A clamping wheel is rotatably connected to the side wall of the moving seat. The clamping wheel clamps the busbar. Four limiting columns are symmetrically and fixedly connected to the bottom of each of the two C-shaped frames. A connecting block is slidably connected between the bottoms of two adjacent limiting columns. A tension spring fixedly connected to the connecting block is sleeved outside the limiting column.
[0013] Furthermore, a displacement sensor is fixedly arranged in the connecting block. A moving plate is fixedly connected between two connecting blocks on one side. A fixing rod is fixedly connected between the two moving plates. A mounting seat is fixedly connected at the central position of the fixing rod. A bidirectional screw rod is rotatably connected in the mounting seat. Two sliding blocks are symmetrically and screwed onto the outside of the bidirectional screw rod. The sliding blocks are slidably and embeddedly connected to the mounting seat. T-shaped plates are fixedly connected to the tops of the two sliding blocks. The T-shaped plates are in contact with the carbon sliding plate.
[0014] Furthermore, a carbon sliding plate is clamped at the center of the mounting seat. An L-shaped block is fixedly connected to the end of the fixing rod. A limiting frame is slidably sleeved on one side of the L-shaped block. The limiting frame is fixedly connected to the top of the support plate. A vertical plate is fixedly connected to the top of the L-shaped block. A chute plate is fixedly connected to the side wall of the vertical plate.
[0015] Furthermore, a baffle is slidably and embeddedly connected in the triangular shell. One end of a connecting rod is rotatably connected to the bottom end of the baffle. The other end of the connecting rod is rotatably connected to a rotating plate. A fixed shaft column fixedly connected to the limiting frame is rotatably connected in the rotating plate. A driving member is fixedly connected to the side wall of the rotating plate. The driving member is slidably clamped with the chute plate.
[0016] Furthermore, an inclined plane block is slidably abutted against one side of the L-shaped block. A positioning rod is slidably sleeved at the bottom of the inclined plane block. A return spring fixedly connected to the inclined plane block is sleeved outside the positioning rod. A power connection piece is fixedly connected to the end of the inclined plane block. A docking column is arranged on the opposite side of the inclined plane block. A storage battery is fixedly arranged on one side of the docking column.
[0017] Furthermore, a liquid guiding hole is formed on the inner wall of the triangular shell. One end of a return pipe docked with the liquid guiding hole is fixedly connected to the outer wall of the triangular shell. The other end of the return pipe is fixedly connected to the top of the liquid storage tank.
[0018] Furthermore, the oiling mechanism includes two positioning seats fixedly connected to the side wall of the support plate. Two diagonal braces are rotatably connected between the two positioning seats. A torsion spring is fixedly connected to the connection between the diagonal brace and the positioning seat. The other ends of the two diagonal braces are rotatably connected to a rotating shaft. A plurality of soft scraping blades are fixedly connected to the outer wall of the rotating shaft at equal intervals in a circular shape. The end of the rotating shaft is fixedly connected to the output end of a servo motor. A first synchronous pulley is fixedly sleeved on the end of the rotating shaft. A cleaning plate is fixedly connected between the two diagonal braces. A waste box is fixedly connected to the end of the cleaning plate.
[0019] Furthermore, a dipping box is fixedly connected between the ends of the two diagonal braces. A roller body is rotatably connected in the dipping box. A second synchronous pulley is fixedly sleeved at the center position of the end of the roller body. A synchronous belt is sleeved between the first synchronous pulley and the second synchronous pulley. A sponge ring is fixedly sleeved in the roller body.
[0020] A method for detecting the wear of a rigid catenary in a subway specifically includes the following steps:
[0021] Step 1: Start multiple cylinders to drive the moving seat to slide in the limit groove in the U-shaped frame, thereby driving the relative clamping wheels to move closer to the busbar, so that the bottom of the clamping wheels makes rolling contact with the busbar. The tension spring at the bottom of the U-shaped frame can drive the connecting block and the mounting seat to rise, so that the carbon sliding plate in the mounting seat always remains in contact with the surface of the rigid catenary.
[0022] Step 2: When the carbon sliding plate follows the moving trolley and slides from the unworn section to the worn section of the catenary, the bottom surface of the rigid catenary gradually changes from an arc shape to a flat shape. The greater the wear degree, the greater the width of the flat surface at the bottom of the catenary. Therefore, the worn catenary will cause the carbon sliding plate to rise under the action of the tension spring, thereby driving the L-shaped block to rise accordingly.
[0023] Step 3: The inclined plane block contacts the electrical contact piece and the docking column under the extrusion of the return spring. Since the inclined plane block is electrically connected to the driving motor and the suction pump through the column, the storage battery can instantaneously energize the driving motor and the suction pump. The suction pump can pump the water-soluble paint in the liquid storage tank into the right-angle pipe, and then spray the easily erasable water-soluble paint on the side wall of the busbar through the fan-shaped nozzle.
[0024] Step 4: The displacement sensor set in the connecting block can obtain the wear depth of the current section and mark it by spraying paint on the side wall of the busbar. Thus, after the detection, it is convenient for subway maintenance personnel to maintain the worn rigid catenary through the mark. The length of the continuous mark can intuitively show the proportion of the length of the worn line segment to the length of the entire rigid catenary segment.
[0025] Step Five: The driving member slides in the chute plate, which can drive the rotating plate to rotate around the fixed shaft column. Then, the end of the rotating plate can drive the connecting rod. Subsequently, one end of the connecting rod can drive the baffle to slide downward in the triangular shell. In this way, the opening between the baffle and the triangular shell gradually increases. Since the fixed shaft column is close to the driving member, even if the rising distance of the vertical plate is tiny, the width of the marked pattern on the side wall of the busbar will increase. On the contrary, when the wear degree of the rigid contact line decreases, the width of the marked strip pattern will also decrease. Therefore, when it is observed that the width of the marked pattern has a gradually increasing trend, the entire worn segment can be replaced. When it is observed that the width of the marked pattern gradually decreases, the rigid contact line can be polished.
[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0027] 1. The carbon skateboard in the mounting seat always keeps in contact with the surface of the rigid contact line. When the carbon skateboard follows the moving trolley and slides from the unworn segment to the worn segment of the contact line, the bottom surface of the rigid contact line gradually changes from an arc shape to a flat shape. The greater the wear degree, the greater the width of the flat surface at the bottom of the contact line. Therefore, the worn contact line will cause the carbon skateboard to rise under the action of the tension spring, driving the L-shaped block to rise accordingly. In this way, the inclined plane block contacts the electrical connecting piece and the docking column under the extrusion of the return spring. Since the inclined plane block is electrically connected to the driving motor and the suction pump through the column, the storage battery can instantaneously energize the driving motor and the suction pump. The water-soluble paint in the liquid storage tank can be pumped into the right-angle pipe through the suction pump, and then sprayed on the side wall of the busbar through the fan-shaped nozzle with the easily erasable water-soluble paint. The displacement sensor set in the connecting block can know the current wear depth of the segment, and mark it by spraying paint on the side wall of the busbar, so that after the detection, the subway maintenance personnel can maintain the worn rigid contact line through the mark. The length of the continuous mark can intuitively show how much the length of the worn line occupies the length of the entire rigid contact line segment, enabling the maintenance personnel to clearly know the wear amount of this segment at the first time.
[0028] 2. When the wear degree of the rigid contact wire increases, the L-shaped block will drive the vertical plate and the chute plate to rise. As a result, the driving member will slide in the chute plate, which can drive the rotating plate to rotate around the fixed shaft column. Then, the end of the rotating plate can drive the connecting rod. Subsequently, one end of the connecting rod can drive the baffle plate to slide downward in the triangular shell. In this way, the opening between the baffle plate and the triangular shell gradually increases. Since the fixed shaft column is close to the driving member, even if the rising distance of the vertical plate is small, the width of the marked pattern on the side wall of the current collector plate will increase. On the contrary, when the wear degree of the rigid contact wire decreases, the width of the marked strip pattern will also decrease. Therefore, when it is observed that the width of the marked pattern has a gradually increasing trend, the entire worn segment can be replaced. When it is observed that the width of the marked pattern gradually decreases, the rigid contact wire can be polished. In this way, the wear trend of the rigid contact wire can be judged by the width of the marked pattern and different maintenance can be carried out according to this trend, which is beneficial to improving the maintenance efficiency of the rigid contact wire.
[0029] 3. The torsion spring in the oiling mechanism can drive the two struts to always approach the rigid contact wire. Therefore, the soft scraping blade and the sponge ring are kept in contact with the surface of the contact wire. During the movement of the oiling mechanism following the device, the output end of the servo motor can drive the rotating shaft and the multiple soft scraping blades on the outer wall to rotate, so that the contaminated conductive oil on the surface of the rigid contact wire can be continuously scraped off. When the soft scraping blade scrapes against the cleaning plate, the waste oil can be introduced into the waste box for collection; under the action of the synchronous belt, the first synchronous pulley will drive the second synchronous pulley and the roller to rotate synchronously. Thus, the sponge ring in the roller can rotate to dip the conductive oil in the dipping box and apply it to the surface of the rigid contact wire. Therefore, the old conductive oil can be cleaned and replaced, which is convenient for ensuring the normal operation of the rigid contact wire and extending its service life. Brief Description of the Drawings
[0030] Figure 1 is the schematic diagram of the overall structure of the present invention;
[0031] Figure 2 is the schematic diagram of the overall front view structure of the present invention;
[0032] Figure 3 is the schematic diagram of the usage state structure of the device in the present invention;
[0033] Figure 4 is the schematic diagram of the lifting mechanism structure of the present invention;
[0034] Figure 5 is the schematic diagram of the connection structure of the mounting seat in the present invention;
[0035] Figure 6 is the schematic diagram of the marking mechanism structure of the present invention;
[0036] Figure 7 is the schematic diagram of the right-angle pipe connection structure of the present invention;
[0037] Figure 8 It is a schematic structural diagram of the oiling mechanism in the present invention;
[0038] Figure 9 It is a schematic top view structural diagram of the oiling mechanism in the present invention.
[0039] In the figure: 100, mobile trolley; 200, lifting mechanism; 201, lifting platform; 202, support plate; 203, U-shaped frame; 204, limiting groove; 205, cylinder; 206, moving seat; 207, clamping wheel; 208, limiting column; 209, connecting block; 210, tension spring; 211, moving plate; 212, fixed rod; 213, mounting seat; 214, T-shaped plate; 215, sliding block; 216, bidirectional screw; 217, carbon sliding plate; 218, L-shaped block; 219, limiting frame; 220, vertical plate; 221, chute plate; 300, marking mechanism; 301, storage battery; 302, docking column; 303, positioning rod; 304, inclined plane block; 305, power connection piece; 306, reset spring; 307, liquid storage tank; 308, suction pump; 309, column; 310, driving motor; 311, right-angle pipe; 312, round cover; 313, sector nozzle; 314, blocking round plate; 315, communication groove; 316, triangular shell; 317, liquid guide hole; 318, return pipe; 319, baffle; 320, connecting rod; 321, rotating plate; 322, driving part; 323, fixed shaft column; 400, oiling mechanism; 401, positioning seat; 402, diagonal brace; 403, torsion spring; 404, rotating shaft; 405, soft scraping blade; 406, cleaning plate; 407, waste box; 408, synchronous pulley one; 409, synchronous pulley two; 410, synchronous belt; 411, servo motor; 412, roller body; 413, sponge ring; 414, dipping box. Detailed implementation manners
[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0041] Please refer to Figures 1-9In an embodiment of the present invention, a wear detection device for a subway rigid contact wire includes: a moving trolley 100, a lifting mechanism 200, a marking mechanism 300, and an oiling mechanism 400. The moving trolley 100 is used to drive the detection device to move on the subway track; the lifting mechanism 200 is used to raise the detection structure to the height of the busbar or lower the detection structure for storage. The lifting mechanism 200 includes a lifting platform 201 fixedly connected to the top of the moving trolley 100. The lifting platform 201 is a scissor-type lifting structure. A support plate 202 is fixedly connected to the top of the lifting platform 201. Two U-shaped frames 203 are symmetrically and fixedly connected to the top of the support plate 202. Two limiting grooves 204 are symmetrically formed on each of the two U-shaped frames 203. A moving seat 206 is slidably and embeddedly connected in the limiting grooves 204. A clamping wheel 207 is rotatably connected to the side wall of the moving seat 206. The clamping wheel 207 clamps the busbar, driving the opposite clamping wheels 207 to move closer to the busbar, so that the bottom of the clamping wheel 207 is in rolling contact with the busbar. Through the tension spring 210 at the bottom of the U-shaped frame 203, the connecting block 209 and the mounting seat 213 can be driven to rise, so that the carbon sliding plate 217 in the mounting seat 213 always remains in contact with the surface of the rigid contact wire. Four limiting columns 208 are symmetrically and fixedly connected to the bottom of each of the two U-shaped frames 203. A connecting block 209 is slidably connected between the bottoms of the two adjacent limiting columns 208. A tension spring 210 fixedly connected to the connecting block 209 is sleeved outside the limiting column 208.
[0042] The marking mechanism 300 is used to detect the wear amount of the rigid contact wire and mark the wear degree by spraying paint. The marking mechanism 300 includes a liquid storage tank 307. The input end of a suction pump 308 is fixedly connected to the top of the liquid storage tank 307. The output end of the suction pump 308 is fixedly connected to a right-angle pipe 311. The end of the right-angle pipe 311 is fixedly connected to a sector nozzle 313. A triangular shell 316 is fixedly sleeved outside the sector nozzle 313. A column 309 is fixedly connected between a driving motor 310 and the suction pump 308. Through the suction pump 308, the water-soluble paint in the liquid storage tank 307 can be pumped into the right-angle pipe 311, and then the water-soluble paint that is easy to erase is sprayed on the side wall of the busbar through the sector nozzle 313. The wear depth of the current line segment can be known through a displacement sensor arranged in the connecting block 209. The oiling mechanism 400 is used to scrape off the contaminated conductive grease on the surface of the rigid contact wire and apply new conductive grease at the same time.
[0043] Specifically, the moving trolley 100 can drive the detection device to continuously advance on the railway track. The lifting platform 201 can be raised to drive the support plate 202 to rise to the bottom of the busbar. Then, multiple cylinders 205 are started to drive the moving seat 206 to slide in the limiting groove 204 in the C-shaped frame 203, thereby driving the opposite clamping wheels 207 to move closer to the busbar, so that the bottom of the clamping wheels 207 makes rolling contact with the busbar. The tension spring 210 at the bottom of the C-shaped frame 203 can drive the connecting block 209 and the mounting seat 213 to rise, so that the carbon sliding plate 217 in the mounting seat 213 always remains in contact with the surface of the rigid contact wire. When the carbon sliding plate 217 follows the moving trolley 100 and slides from the unworn section to the worn section of the contact wire, the bottom surface of the rigid contact wire gradually changes from an arc shape to a flat shape. The greater the wear degree, the wider the flat width at the bottom of the contact wire. Therefore, the worn flat contact wire will cause the carbon sliding plate 217 to rise under the action of the tension spring 210, thereby driving the L-shaped block 218 to rise accordingly. In this way, the inclined block 304 presses the electrical contact piece 305 to contact the docking column 302 under the extrusion of the return spring 306. Since the inclined block 304 is electrically connected to the drive motor 310 and the suction pump 308 through the column 309, the storage battery 301 can instantaneously energize the drive motor 310 and the suction pump 308. The suction pump 308 can pump the water-soluble paint in the liquid storage tank 307 into the right-angle pipe 311, and then spray the easily erasable water-soluble paint on the side wall of the busbar through the fan-shaped nozzle 313. The displacement sensor is arranged in the connecting block 209 to know the wear depth of the current section, and the worn rigid contact wire is marked by spraying paint on the side wall of the busbar, so that after the detection, the subway maintenance personnel can maintain the worn rigid contact wire through the mark. The length of the continuous mark can intuitively show the proportion of the length of the worn line to the length of the entire rigid contact wire segment, so that the maintenance personnel can clearly know the wear amount of this segment at the first time.
[0044] Embodiment 1
[0045] As Figures 5-6 shown, in this embodiment, a moving plate 211 is fixedly connected between the two connecting blocks 209 on one side. A fixing rod 212 is fixedly connected between the two moving plates 211. A mounting seat 213 is fixedly connected at the central position of the fixing rod 212. A carbon sliding plate 217 is clamped at the center of the mounting seat 213. An L-shaped block 218 is fixedly connected to the end of the fixing rod 212. A limiting frame 219 is slidably sleeved on one side of the L-shaped block 218. The limiting frame 219 is fixedly connected to the top of the support plate 202. A vertical plate 220 is fixedly connected to the top of the L-shaped block 218. A chute plate 221 is fixedly connected to the side wall of the vertical plate 220;
[0046] A baffle plate 319 is slidably and embeddedly connected in the triangular shell 316. One end of a connecting rod 320 is rotatably connected to the bottom end of the baffle plate 319. The other end of the connecting rod 320 is rotatably connected to a rotating plate 321. A fixed shaft column 323 fixedly connected to the limit frame 219 is rotatably connected in the rotating plate 321. A driving member 322 is fixedly connected to the side wall of the rotating plate 321. The driving member 322 is slidably and snap-connected to the chute plate 221. One end of the connecting rod 320 can drive the baffle plate 319 to slide downward in the triangular shell 316, so that the opening between the baffle plate 319 and the triangular shell 316 gradually increases. One side of the L-shaped block 218 slidably abuts against an inclined plane block 304. A positioning rod 303 is slidably sleeved at the bottom of the inclined plane block 304. A return spring 306 fixedly connected to the inclined plane block 304 is sleeved outside the positioning rod 303. An electric contact piece 305 is fixedly connected to the end of the inclined plane block 304. A docking column 302 is arranged on the opposite side of the inclined plane block 304. A storage battery 301 is fixedly arranged on one side of the docking column 302; A displacement sensor is fixedly arranged in the connecting block 209. A bidirectional screw 216 is rotatably connected in the mounting seat 213. Two sliding blocks 215 are symmetrically screwed and sleeved outside the bidirectional screw 216. The sliding blocks 215 are slidably and embeddedly connected to the mounting seat 213. T-shaped plates 214 are fixedly connected to the tops of the two sliding blocks 215. The T-shaped plates 214 abut against the carbon sliding plate 217.
[0047] During specific implementation, when the wear degree of the rigid contact wire deepens, the L-shaped block 218 will drive the vertical plate 220 and the chute plate 221 to rise, so that the driving member 322 will slide in the chute plate 221, so as to drive the rotating plate 321 to rotate around the fixed shaft column 323. Then, the connecting rod 320 can be driven by the end of the rotating plate 321. After that, one end of the connecting rod 320 can drive the baffle plate 319 to slide downward in the triangular shell 316, so that the opening between the baffle plate 319 and the triangular shell 316 gradually increases. Since the fixed shaft column 323 is close to the driving member 322, even if the rising distance of the vertical plate 220 is small, the width of the marked pattern on the side wall of the current collector plate will increase. On the contrary, when the wear degree of the rigid contact wire decreases, the width of the marked strip pattern will also decrease. Therefore, when it is observed that the width of the marked pattern has a gradually increasing trend, the worn segment can be replaced as a whole. When it is observed that the width of the marked pattern gradually decreases, the rigid contact wire can be polished. In this way, the wear trend of the rigid contact wire can be judged by the width of the marked pattern and different maintenance can be carried out according to this trend, which is beneficial to improving the maintenance efficiency of the rigid contact wire.
[0048] As Figure 7As shown, in this embodiment, a liquid guide hole 317 is formed in the inner wall of the triangular shell 316, and one end of a return pipe 318 that is fixedly connected to the outer wall of the triangular shell 316 and is docked with the liquid guide hole 317 is fixedly connected to the top of the liquid storage tank 307; a round cover 312 is fixedly connected in the right-angle pipe 311, a plugging round plate 314 is rotatably connected in the round cover 312, a communication groove 315 is formed in the plugging round plate 314, and the output end of a driving motor 310 is fixedly connected to the central position of the plugging round plate 314.
[0049] During specific implementation, the output end of the driving motor 310 can drive the plugging round plate 314 to rotate, so that the communication groove 315 and the right-angle pipe 311 can be reciprocally communicated, so that a water-soluble paint can be intermittently sprayed on the side wall of the busbar, thereby reducing the paint spraying amount during marking, and the paint blocked by the baffle 319 can be introduced into the return pipe 318 through the liquid guide hole 317, so as to facilitate the recovery of the water-soluble paint, and thus prevent environmental pollution.
[0050] A method for detecting the wear of a subway rigid contact line specifically includes the following steps:
[0051] Step 1: Start a plurality of cylinders 205 to drive the moving seat 206 to slide in the limiting groove 204 in the U-shaped frame 203, so as to drive the relative clamping wheels 207 to move closer to the busbar, so that the bottom of the clamping wheels 207 is in rolling contact with the busbar, and the tension spring 210 at the bottom of the U-shaped frame 203 can drive the connecting block 209 and the mounting seat 213 to rise, so that the carbon slide plate 217 in the mounting seat 213 always remains in contact with the surface of the rigid contact line;
[0052] Step 2: When the carbon slide plate 217 follows the moving trolley 100 and slides from the unworn section of the contact line to the worn section of the contact line, the bottom surface of the rigid contact line gradually changes from an arc shape to a flat shape, and the wider the flat width of the bottom of the contact line is, the greater the wear degree is. Therefore, the worn contact line will cause the carbon slide plate 217 to rise under the action of the tension spring 210, thereby driving the L-shaped block 218 to rise accordingly;
[0053] Step 3: The inclined plane block 304 contacts the electric contact piece 305 and the docking column 302 under the extrusion of the return spring 306. Since the inclined plane block 304 is electrically connected to the driving motor 310 and the suction pump 308 through the column 309, the storage battery 301 can instantaneously power on the driving motor 310 and the suction pump 308. The suction pump 308 can pump the water-soluble paint in the liquid storage tank 307 into the right-angle pipe 311, and then spray the easily erasable water-soluble paint on the side wall of the busbar through the fan-shaped nozzle 313;
[0054] Step 4: The displacement sensor is arranged in the connecting block 209 to obtain the wear depth of the current line segment, and paint is sprayed on the side wall of the busbar for marking, so that after the detection, the subway maintenance personnel can maintain the worn rigid contact line through the marking. The length of the continuous marking can intuitively show the proportion of the length of the worn line segment to the length of the whole rigid contact line segment;
[0055] Step 5: The driving member 322 slides in the chute plate 221, so as to drive the rotating plate 321 to rotate around the fixed shaft column 323. Then, the end of the rotating plate 321 can drive the connecting rod 320. After that, one end of the connecting rod 320 can drive the baffle 319 to slide downward in the triangular shell 316. In this way, the opening between the baffle 319 and the triangular shell 316 gradually increases. Since the fixed shaft column 323 is close to the driving member 322, even if the rising distance of the vertical plate 220 is small, the width of the marked pattern on the side wall of the busbar will increase. On the contrary, when the wear degree of the rigid contact line decreases, the width of the marked strip pattern will also decrease. Therefore, when observing that the width of the marked pattern has a gradually increasing trend, the whole worn line segment can be replaced. When observing that the width of the marked pattern gradually decreases, the rigid contact line can be polished.
[0056] Embodiment 2
[0057] As Figures 8-9 shown, in this embodiment, the oiling mechanism 400 includes two positioning seats 401 fixedly connected to the side wall of the support plate 202. Two diagonal braces 402 are rotatably connected between the two positioning seats 401. A torsion spring 403 is fixedly connected to the connection between the diagonal brace 402 and the positioning seat 401. The torsion spring 403 in the oiling mechanism 400 can drive the two diagonal braces 402 to always approach the rigid contact line, so as to keep the soft scraper 405 and the sponge ring 413 in contact with the surface of the contact line. The other ends of the two diagonal braces 402 are rotatably connected with a rotating shaft 404. A plurality of soft scrapers 405 are fixedly connected to the outer wall of the rotating shaft 404 at equal intervals in the circumferential direction. The output end of the servo motor 411 can drive the rotating shaft 404 and the plurality of soft scrapers 405 on the outer wall to rotate, so as to continuously scrape the contaminated conductive oil on the surface of the rigid contact line; The end of the rotating shaft 404 is fixedly connected to the output end of the servo motor 411. A cleaning plate 406 is fixedly connected between the two diagonal braces 402. A waste box 407 is fixedly connected to the end of the cleaning plate 406; A dipping box 414 is fixedly connected between the ends of the two diagonal braces 402. A roller body 412 is rotatably connected in the dipping box 414. A second synchronous pulley 409 is fixedly sleeved at the central position of the end of the roller body 412. A synchronous belt 410 is sleeved between the first synchronous pulley 408 and the second synchronous pulley 409. A sponge ring 413 is fixedly sleeved in the roller body 412.
[0058] During specific implementation, the torsion spring 403 in the oiling mechanism 400 can drive the two struts 402 to always approach the rigid contact wire, so as to keep the soft wiper 405 and the sponge ring 413 in contact with the surface of the contact wire. During the movement of the oiling mechanism 400 following the device, the output end of the servo motor 411 can drive the rotating shaft 404 and the multiple soft wipers 405 on the outer wall to rotate, so as to continuously scrape the contaminated conductive oil on the surface of the rigid contact wire. After the soft wiper 405 and the cleaning plate 406 scrape against each other, the waste oil can be introduced into the waste box 407 to complete the collection; the first synchronous pulley 408 will drive the second synchronous pulley 409 and the roller body 412 to rotate synchronously under the action of the synchronous belt 410, so that the sponge ring 413 in the roller body 412 can rotate to dip the conductive oil in the dipping material box 414 and apply it to the surface of the rigid contact wire. Therefore, the old conductive oil can be replaced after cleaning, so as to ensure the normal operation of the rigid contact wire and extend its service life.
[0059] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claim.
[0060] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A wear detection device for a rigid contact line of a subway, characterized in that, Including: A mobile trolley (100), which is used to drive the detection device to move on the subway track; A lifting mechanism (200), which is used to raise the detection structure to the height of the busbar or lower the height of the detection structure for storage; A marking mechanism (300), which is used to detect the wear amount of the rigid contact wire and mark the wear degree by spraying paint. The marking mechanism (300) includes a liquid storage tank (307). The input end of a suction pump (308) is fixedly connected to the top of the liquid storage tank (307). The output end of the suction pump (308) is fixedly connected to a right-angle pipe (311). The end of the right-angle pipe (311) is fixedly connected to a sector nozzle (313). A triangular shell (316) is fixedly sleeved outside the sector nozzle (313). A round cover (312) is fixedly connected in the right-angle pipe (311). A blocking circular plate (314) is rotatably connected in the round cover (312). A communication groove (315) is formed in the blocking circular plate (314). The output end of a driving motor (310) is fixedly connected to the central position of the blocking circular plate (314). A column (309) is fixedly connected between the driving motor (310) and the suction pump (308); An oiling mechanism (400), which is used to scrape off the contaminated conductive grease on the surface of the rigid contact wire and apply new conductive grease at the same time.
2. The wear detection device for the rigid contact wire of a subway according to claim 1, wherein, The lifting mechanism (200) includes a lifting platform (201) fixedly connected to the top of the mobile trolley (100). The lifting platform (201) is a scissor-type lifting structure. A support plate (202) is fixedly connected to the top of the lifting platform (201). Two U-shaped frames (203) are symmetrically and fixedly connected to the top of the support plate (202). Two limiting grooves (204) are symmetrically formed in each of the two U-shaped frames (203). A moving seat (206) is slidably and embeddedly connected in the limiting grooves (204). A clamping wheel (207) is rotatably connected to the side wall of the moving seat (206). Two cylinders (205) fixedly connected to the moving seat (206) are symmetrically and fixedly connected to the inner side walls of the U-shaped frames (203). The clamping wheel (207) clamps the busbar. Four limiting columns (208) are symmetrically and fixedly connected to the bottom of each of the two U-shaped frames (203). A connecting block (209) is slidably connected between the bottoms of two adjacent limiting columns (208). A tension spring (210) fixedly connected to the connecting block (209) is sleeved outside the limiting column (208).
3. The wear detection device for a subway rigid contact wire according to claim 2, characterized in that, A displacement sensor is fixedly arranged in the connecting block (209). A moving plate (211) is fixedly connected between two connecting blocks (209) on one side. A fixing rod (212) is fixedly connected between the two moving plates (211). An installation seat (213) is fixedly connected at the central position of the fixing rod (212). A bidirectional screw rod (216) is rotatably connected in the installation seat (213). Two sliding blocks (215) are symmetrically screwed and sleeved on the outer part of the bidirectional screw rod (216). The sliding blocks (215) are slidably and embeddedly connected with the installation seat (213). T-shaped plates (214) are fixedly connected to the tops of the two sliding blocks (215). The T-shaped plates (214) are in contact with the carbon sliding plate (217).
4. The wear detection device for a subway rigid contact wire according to claim 3, wherein A carbon sliding plate (217) is clamped at the center of the installation seat (213). An L-shaped block (218) is fixedly connected to the end of the fixing rod (212). A limiting frame (219) is slidably sleeved on one side of the L-shaped block (218). The limiting frame (219) is fixedly connected to the top of the support plate (202). A vertical plate (220) is fixedly connected to the top of the L-shaped block (218). A chute plate (221) is fixedly connected to the side wall of the vertical plate (220).
5. The wear detection device for the rigid contact wire of a subway according to claim 4, characterized in that, A baffle (319) is slidably and embeddedly connected in the triangular shell (316). One end of a connecting rod (320) is rotatably connected to the bottom end of the baffle (319). The other end of the connecting rod (320) is rotatably connected to a rotating plate (321). A fixed shaft column (323) fixedly connected with the limiting frame (219) is rotatably connected in the rotating plate (321). A driving part (322) is fixedly connected to the side wall of the rotating plate (321). The driving part (322) is slidably clamped with the chute plate (221).
6. The wear detection device for a subway rigid contact wire according to claim 5, characterized in that, An inclined plane block (304) is slidably abutted against one side of the L-shaped block (218). A positioning rod (303) is slidably sleeved at the bottom of the inclined plane block (304). A return spring (306) fixedly connected with the inclined plane block (304) is sleeved on the outer part of the positioning rod (303). An electric connection piece (305) is fixedly connected to the end of the inclined plane block (304). A docking column (302) is arranged on the opposite side of the inclined plane block (304). A storage battery (301) is fixedly arranged on one side of the docking column (302).
7. The wear detection device for a subway rigid contact wire according to claim 6, characterized in that, A liquid guiding hole (317) is formed in the inner wall of the triangular shell (316). One end of a return pipe (318) opposite to the liquid guiding hole (317) is fixedly connected to the outer wall of the triangular shell (316). The other end of the return pipe (318) is fixedly connected to the top of the liquid storage tank (307).
8. The wear detection device for a subway rigid contact wire according to claim 7, characterized in that, The oiling mechanism (400) includes two positioning seats (401) fixedly connected to the side wall of the support plate (202). Two diagonal braces (402) are rotatably connected between the two positioning seats (401). A torsion spring (403) is fixedly connected to the connection between the diagonal brace (402) and the positioning seat (401). The other ends of the two diagonal braces (402) are rotatably connected by a rotating shaft (404). A plurality of soft scraping blades (405) are fixedly connected to the outer wall of the rotating shaft (404) at equal intervals in a circular shape. A first synchronous pulley (408) is fixedly sleeved on the end of the rotating shaft (404). The end of the rotating shaft (404) is fixedly connected to the output end of a servo motor (411). A cleaning plate (406) is fixedly connected between the two diagonal braces (402). A waste box (407) is fixedly connected to the end of the cleaning plate (406).
9. The wear detection device for a subway rigid contact wire according to claim 8, characterized in that, A dipping box (414) is fixedly connected between the ends of the two diagonal braces (402). A roller body (412) is rotatably connected in the dipping box (414). A second synchronous pulley (409) is fixedly sleeved at the central position of the end of the roller body (412). A synchronous belt (410) is sleeved between the first synchronous pulley (408) and the second synchronous pulley (409). A sponge ring (413) is fixedly sleeved in the roller body (412).
10. A method for detecting wear of a rigid contact wire of a subway according to claim 9, characterized in that, Specifically, it includes the following steps: Step 1: Start a plurality of cylinders (205) to drive the moving seat (206) to slide in the limiting groove (204) of the U-shaped frame (203), thereby driving the relative clamping wheels (207) to move closer to the busbar, so that the bottom of the clamping wheel (207) makes rolling contact with the busbar. The tension spring (210) at the bottom of the U-shaped frame (203) can drive the connecting block (209) and the mounting seat (213) to rise, so that the carbon sliding plate (217) in the mounting seat (213) always remains in contact with the surface of the rigid contact wire; Step 2: When the carbon sliding plate (217) follows the moving trolley (100) and slides from the unworn section of the contact wire to the worn section of the contact wire, the bottom surface of the rigid contact wire gradually changes from an arc shape to a flat shape. The greater the wear degree, the wider the flat width at the bottom of the contact wire. Therefore, the worn flat contact wire will cause the carbon sliding plate (217) to rise under the action of the tension spring (210), thereby driving the L-shaped block (218) to rise accordingly; Step 3: The inclined plane block (304) squeezes the electrical contact piece (305) to contact the docking column (302) under the action of the return spring (306). Since the inclined plane block (304) is electrically connected to the driving motor (310) and the suction pump (308) through the column (309), the storage battery (301) can instantaneously power on the driving motor (310) and the suction pump (308). The suction pump (308) can pump the water-soluble paint in the liquid storage tank (307) into the right-angle pipe (311), and then spray the easily erasable water-soluble paint on the side wall of the busbar through the fan-shaped nozzle (313); Step 4: The displacement sensor is arranged in the connecting block (209) to obtain the wear depth of the current line segment, and paint is sprayed on the side wall of the busbar for marking, so that after the detection, subway maintenance personnel can maintain the worn rigid contact line through the marking. The length of the continuous marking can intuitively show the proportion of the length of the worn line segment to the length of the whole rigid contact line segment; Step 5: The driving part (322) slides in the chute plate (221), so as to drive the rotating plate (321) to rotate around the fixed shaft column (323). Then, the end of the rotating plate (321) can drive the connecting rod (320). After that, one end of the connecting rod (320) can drive the baffle plate (319) to slide down in the triangular shell (316). In this way, the opening between the baffle plate (319) and the triangular shell (316) gradually increases. Since the fixed shaft column (323) is close to the driving part (322), even if the rising distance of the vertical plate (220) is small, the width of the marked pattern on the side wall of the busbar will increase. On the contrary, when the wear degree of the rigid contact line decreases, the width of the marked strip pattern will also decrease. Therefore, when it is observed that the width of the marked pattern has a gradually increasing trend, the whole worn line segment can be replaced. When it is observed that the width of the marked pattern gradually decreases, the rigid contact line can be polished.