CN113525450B - Railway track external defect detection device - Google Patents
Railway track external defect detection device Download PDFInfo
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- CN113525450B CN113525450B CN202111085434.2A CN202111085434A CN113525450B CN 113525450 B CN113525450 B CN 113525450B CN 202111085434 A CN202111085434 A CN 202111085434A CN 113525450 B CN113525450 B CN 113525450B
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- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 230000007547 defect Effects 0.000 title claims abstract description 20
- 238000001125 extrusion Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000005484 gravity Effects 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 14
- 230000008844 regulatory mechanism Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000737 periodic effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/08—Railway inspection trolleys
- B61D15/12—Railway inspection trolleys power propelled
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
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Abstract
The invention relates to the technical field of steel rails and discloses a railway track external defect detection device which comprises a detection vehicle, wherein the bottom of the detection vehicle is fixedly connected with a support frame, the side surface of the support frame is rotatably connected with a support shaft, one side of the support shaft, which is far away from the support frame, is rotatably connected with a wheel, a speed regulation mechanism is arranged in the wheel, an extrusion air plate is arranged on one side of a horizontal cavity and one side of a gravity block, a brake block is fixedly connected to the other side of a push rod, a driving wheel is arranged above the wheel, a centrifugal plate is slidably connected in the driving wheel, and a transmission rod is fixedly connected to the side surface of the centrifugal plate. This railway rails external defect detection device uses through the cooperation of wheel with speed adjusting mechanism to reached and when detecting the rail through detecting the car, avoided causing because of rail undulation and detect the effect that the car speed changes and then influence detection precision.
Description
Technical Field
The invention relates to the technical field of steel rails, in particular to a device for detecting external defects of a railway track.
Background
The steel rail is a basic bearing structure of a railway track, is used for guiding locomotive vehicles to run, transmitting the borne load to sleepers, track beds and roadbed, and providing a contact surface with minimum resistance for the rolling of wheels, and has enough bearing capacity, bending strength, fracture toughness, stability and corrosion resistance. In the 80 s of the 20 th century, i-shaped section rails were laid on railways of various countries in the world except for double rails laid on British railways. It is composed of three parts of rail head, rolling waist and rail bottom.
Present railway department needs regularly to carry out periodic detection to the rail, the rail that prevents to appear damaging causes adverse effect to the operation of train, the detection mode of present rail is through detecting the car and remove going on the rail, this kind of detection car can send the detection sound wave at the in-process that removes, just can make the mark automatically when detecting unusually, it is very high-efficient, however at the in-process that detects actual removal, because the rail can appear undulant, the detection speed that detects the car needs to be stable, so when meetting the rail section of undulant, it can accelerate or slow down to detect the car under the effect of self gravity, the change of speed can influence and detect the precision.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a railway track external defect detection device which has the advantages of avoiding the influence on the detection precision caused by overlarge speed fluctuation of a detection vehicle due to the fluctuation of a steel rail when the steel rail is detected by the detection vehicle, and solving the problem that the influence on the detection precision caused by the overlarge speed fluctuation of the detection vehicle due to the fluctuation of the steel rail when the steel rail is detected by the detection vehicle.
(II) technical scheme
In order to realize the purpose of avoiding the influence on the detection precision caused by the speed change of the detection vehicle due to the fluctuation of the steel rail when the steel rail is detected by the detection vehicle, the invention provides the following technical scheme: the utility model provides a railway track external defect detection device, is including detecting the car, the bottom fixedly connected with support frame that detects the car, the side of support frame is rotated and is connected with the back shaft, one side that the support frame was kept away from to the back shaft is rotated and is connected with the wheel, the inside and the top of wheel are provided with speed regulating mechanism, speed regulating mechanism's inside is provided with the recess, speed regulating mechanism's inside is provided with reminds the mechanism, the below of detecting the car is provided with the rail.
Preferably, the inner wall fixedly connected with supporting spring of recess, supporting spring's opposite side fixedly connected with holds the ball, the horizontal cavity has been seted up to the inside of back shaft, the inside sliding connection in horizontal cavity has the gravity piece, the side fixedly connected with extension spring of gravity piece, one side in horizontal cavity and the one side that is located the gravity piece are provided with the extrusion gas board, one side fixedly connected with ejector pin that the gravity piece was kept away from to the extrusion gas board, the opposite side fixedly connected with brake block of ejector pin, the top of wheel is provided with the action wheel, the inside sliding connection of action wheel has the centrifugal plate, the side fixedly connected with transfer line of centrifugal plate.
Preferably, the receiving ball is located inside the groove, the boundary of the receiving ball does not extend out of the groove, and the groove is formed in one surface, connected with the rail, of the outer portion of the wheel.
Preferably, the centrifugal plates are connected through a connecting spring, and the centrifugal plates cannot be thrown out of the driving wheel when the driving wheel rotates.
Preferably, the reminding mechanism comprises a moving groove, a friction wheel is arranged in the moving groove, an extrusion block is connected to the surface of the friction wheel in a rotating mode, and a pressure buzzer is arranged on one side, close to the inside of the moving groove, of the extrusion block.
Preferably, the friction wheel has a squeezing force with the inner wall of the wheel initially, and the moving groove is formed on the side of the brake block away from the center of the support shaft.
Preferably, a limiting spring is arranged on the side surface of the extrusion block, and the other side of the limiting spring is fixed on the inner wall of the moving groove.
(III) advantageous effects
Compared with the prior art, the invention provides a railway track external defect detection device, which has the following beneficial effects:
1. this railway rails external defect detection device, use through the cooperation of wheel and speed adjusting mechanism, when detecting, need will detect the car and place the surface of rail, start the inside motor that detects the car, detect the car can be at the surface uniform velocity removal of rail, when the rail appears undulant, speed adjusting mechanism can carry out speed control to detecting the car, make to detect the car and continuously be in the state of uniform velocity removal, thereby reached and detected time measuring the rail through detecting the car, avoid causing because of the rail undulation that detection car speed is undulant too big and then influence the effect that detects the precision.
2. This railway rails external defect detection device, use with the cooperation of reminding the mechanism through the brake pads, when the brake pads brakes the wheel, the brake pads can rub with the inner wall of wheel, along with the continuation of friction time, the wearing and tearing that the brake pads received can continuously aggravate, so the thickness of brake pads reduces gradually, along with the thickness of brake pads reduces, the friction pulley will drive the inside removal of extrusion piece to the shifting chute, when the extrusion piece leads to the fact the extrusion to pressure squealer the ware, pressure squealer starts to send the ring, remind the workman to change, avoid some to detect the car speed governing, thereby reached when the brake pads wearing and tearing are too big, remind the workman to change the effect of avoiding some detection car speed governing automatically.
Drawings
FIG. 1 is a schematic cross-sectional view of the entire structure of the present invention;
FIG. 2 is a schematic view of the connection between the driving wheel and the wheel according to the present invention;
FIG. 3 is a side cross-sectional view of the support shaft and wheel connection of the present invention;
FIG. 4 is a schematic cross-sectional view of the interior of a wheel constructed in accordance with the present invention;
FIG. 5 is an enlarged view of part A of the block diagram of FIG. 4.
In the figure: 1. detecting a vehicle; 2. a support frame; 3. a support shaft; 4. a wheel; 5. a speed regulating mechanism; 501. a groove; 502. a support spring; 503. receiving the ball; 504. a driving wheel; 505. a centrifugal plate; 506. a transmission rod; 507. a horizontal cavity; 508. a gravity block; 509. an extension spring; 510. extruding the gas plate; 511. a top rod; 512. a brake pad; 6. a reminder mechanism; 601. a moving groove; 602. a friction wheel; 603. extruding the block; 604. a pressure squealer; 7. a steel rail.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1-5, a railway track external defect detecting device comprises a detecting vehicle 1, a supporting frame 2 is fixedly connected to the bottom of the detecting vehicle 1, a supporting shaft 3 is rotatably connected to the side surface of the supporting frame 2, a wheel 4 is rotatably connected to one side of the supporting shaft 3 away from the supporting frame 2, a speed adjusting mechanism 5 is arranged inside and above the wheel 4, a groove 501 is arranged inside the speed adjusting mechanism 5, the groove 501 is formed through the surface of the wheel 4 connected with the track, a supporting spring 502 is fixedly connected to the inner wall of the groove 501, a receiving ball 503 is fixedly connected to the other side of the supporting spring 502, the receiving ball 503 is positioned inside the groove 501, the boundary of the receiving ball does not extend out of the groove 501, a horizontal cavity 507 is formed inside the supporting shaft 3, a gravity block 508 is slidably connected inside the horizontal cavity 507, an extension spring 509 is fixedly connected to the side surface of the gravity block 508, an extrusion air plate 510 is arranged on one side of the horizontal cavity 507 and on one side of the gravity block 508, one side of the extrusion air plate 510, which is far away from the gravity block 508, is fixedly connected with a top rod 511, the other side of the top rod 511 is fixedly connected with a brake block 512, a driving wheel 504 is arranged above the wheel 4, a centrifugal plate 505 is slidably connected inside the driving wheel 504, the centrifugal plates 505 are connected through a connecting spring, the centrifugal plates cannot be thrown out of the driving wheel 504 when the driving wheel 504 rotates, a transmission rod 506 is fixedly connected to the side surface of the centrifugal plate 505, a reminding mechanism 6 is arranged inside the speed regulating mechanism 5, and a steel rail 7 is arranged below the detection vehicle 1.
When using, need to place the surface of rail 7 with detection car 1, start the inside motor of detection car 1, action wheel 504 can rotate, throw away inside centrifugal plate 505, and then drive transfer line 506 and rotate extrusion reception ball 503, reception ball 503 drives wheel 4 through supporting spring 502 and rotates, make detection car 1 at the surperficial uniform velocity removal of rail 7, when rail 7 appears undulant, wheel 4 supports the inside horizontal cavity 507 of shaft 3 and can appear inclining, its inside gravity piece 508 can drive extension spring 509 and move in the inside of horizontal cavity 507 under the effect of gravity, because the inside of horizontal cavity 507 has certain atmospheric pressure, so along with the removal of gravity piece 508, extrusion gas board 510 can move under the effect of atmospheric pressure.
Because the air compression plate 510 drives the brake block 512 to generate compression on the inner wall of the wheel 4 through the mandril 511 initially, the compression force of the brake block 512 on the inner wall of the wheel 4 changes along with the change of the air pressure in the horizontal cavity 507, namely the friction force of the brake block 512 on the wheel 4 changes, therefore, when the detection vehicle 1 goes down the slope, the brake force of the brake block 512 on the wheel 4 is increased, so that the speed fluctuation of the detection vehicle 1 is reduced, when the detection vehicle 1 goes up the slope, the brake force of the brake block 512 on the wheel 4 is reduced, the resistance generated by gravity is offset, and the speed fluctuation of the detection vehicle 1 is reduced, so that the effect of avoiding the influence on the detection precision caused by the overlarge speed fluctuation of the detection vehicle 1 due to the fluctuation of the steel rail 7 when the detection vehicle 1 detects the steel rail 7 is achieved.
Example two: referring to fig. 1-5, a railway track external defect detecting device comprises a detecting vehicle 1, a supporting frame 2 is fixedly connected to the bottom of the detecting vehicle 1, a supporting shaft 3 is rotatably connected to the side surface of the supporting frame 2, a wheel 4 is rotatably connected to one side of the supporting shaft 3 away from the supporting frame 2, a speed regulating mechanism 5 is arranged inside and above the wheel 4, a groove 501 is arranged inside the speed regulating mechanism 5, the groove 501 is formed by the surface of the wheel 4 connected with a track, a reminding mechanism 6 is arranged inside the speed regulating mechanism 5, the reminding mechanism 6 comprises a moving groove 601, the moving groove 601 is formed in one side of a brake block 512 away from the center of the supporting shaft 3, a friction wheel 602 is arranged inside the moving groove 601, an extrusion force exists between the friction wheel 602 and the inner wall of the wheel 4 at the initial time, an extrusion block 603 is rotatably connected to the surface of the friction wheel 602, and a limit spring is arranged on the side surface of the extrusion block 603, the other side of the limiting spring is fixed on the inner wall of the moving groove 601, a pressure buzzer 604 is arranged on one side of the extrusion block 603 close to the inside of the moving groove 601, and a steel rail 7 is arranged below the detection vehicle 1.
When brake block 512 brakes wheel 4, brake block 512 can rub with the inner wall of wheel 4, along with the continuation of friction time, the wearing and tearing that brake block 512 received can continue the aggravation, so brake block 512's thickness reduces gradually, along with brake block 512's thickness reduces, friction wheel 602 will drive extrusion block 603 and remove to the inside of shifting chute 601, when extrusion block 603 causes the extrusion to pressure squealer 604, pressure squealer 604 starts to send out the ring, remind the workman to change, avoid some to detect car 1 speed governing, thereby reached when brake block 512 wearing and tearing are too big, remind the workman to change the effect of avoiding some to detect car 1 speed governing automatically.
Example three: referring to fig. 1-5, a railway track external defect detecting device comprises a detecting vehicle 1, a supporting frame 2 is fixedly connected to the bottom of the detecting vehicle 1, a supporting shaft 3 is rotatably connected to the side surface of the supporting frame 2, a wheel 4 is rotatably connected to one side of the supporting shaft 3 away from the supporting frame 2, a speed adjusting mechanism 5 is arranged inside and above the wheel 4, a groove 501 is arranged inside the speed adjusting mechanism 5, the groove 501 is formed through the surface of the wheel 4 connected with the track, a supporting spring 502 is fixedly connected to the inner wall of the groove 501, a receiving ball 503 is fixedly connected to the other side of the supporting spring 502, the receiving ball 503 is positioned inside the groove 501, the boundary of the receiving ball does not extend out of the groove 501, a horizontal cavity 507 is formed inside the supporting shaft 3, a gravity block 508 is slidably connected inside the horizontal cavity 507, an extension spring 509 is fixedly connected to the side surface of the gravity block 508, an extrusion air plate 510 is arranged on one side of the horizontal cavity 507 and on one side of the gravity block 508, a top rod 511 is fixedly connected to one side of the extrusion air plate 510 far away from the gravity block 508, a brake block 512 is fixedly connected to the other side of the top rod 511, a driving wheel 504 is arranged above the wheel 4, a centrifugal plate 505 is connected to the inside of the driving wheel 504 in a sliding manner, the centrifugal plate 505 is connected through a connecting spring, the driving wheel 504 cannot be thrown out of the driving wheel 504 when rotating, a transmission rod 506 is fixedly connected to the side surface of the centrifugal plate 505, a reminding mechanism 6 is arranged inside the speed regulating mechanism 5, a steel rail 7 is arranged below the detection vehicle 1, a groove 501 is arranged inside the speed regulating mechanism 5, a reminding mechanism 6 is arranged inside the speed regulating mechanism 5, the reminding mechanism 6 comprises a moving groove 601, the moving groove 601 is arranged on one side of the brake block 512 far away from the center of the support shaft 3, a friction wheel 602 is arranged inside the moving groove 601, extrusion force exists between the friction wheel 602 and the inner wall of the wheel 4 when the friction wheel 602 is initially, the surface of the friction wheel 602 is rotatably connected with the extrusion block 603, a limiting spring is arranged on the side surface of the extrusion block 603, the other side of the limiting spring is fixed on the inner wall of the moving groove 601, a pressure buzzer 604 is arranged on one side of the extrusion block 603 close to the inside of the moving groove 601, and a steel rail 7 is arranged below the detection vehicle 1.
The working principle is as follows: when using, need to place the surface of rail 7 with detection car 1, start the inside motor of detection car 1, action wheel 504 can rotate, throw away inside centrifugal plate 505, and then drive transfer line 506 and rotate extrusion reception ball 503, reception ball 503 drives wheel 4 through supporting spring 502 and rotates, make detection car 1 at the surperficial uniform velocity removal of rail 7, when rail 7 appears undulant, wheel 4 supports the inside horizontal cavity 507 of shaft 3 and can appear inclining, its inside gravity piece 508 can drive extension spring 509 and move in the inside of horizontal cavity 507 under the effect of gravity, because the inside of horizontal cavity 507 has certain atmospheric pressure, so along with the removal of gravity piece 508, extrusion gas board 510 can move under the effect of atmospheric pressure.
Because the air compression plate 510 drives the brake block 512 to generate compression on the inner wall of the wheel 4 through the mandril 511 initially, along with the change of the air pressure in the horizontal cavity 507, the compression force of the brake block 512 on the inner wall of the wheel 4 changes, namely the friction force of the brake block 512 on the wheel 4 changes, when the detection vehicle 1 goes down the slope, the brake force of the brake block 512 on the wheel 4 is increased, so that the speed fluctuation of the detection vehicle 1 is reduced, when the detection vehicle 1 goes up the slope, the brake force of the brake block 512 on the wheel 4 is reduced, the resistance generated by gravity is offset, and the speed fluctuation of the detection vehicle 1 is reduced still, so that the effect of avoiding the influence on the detection precision caused by the overlarge speed fluctuation of the detection vehicle 1 due to the fluctuation of the steel rail 7 when the detection vehicle 1 detects the steel rail 7 is achieved.
When brake block 512 brakes wheel 4, brake block 512 can rub with the inner wall of wheel 4, along with the continuation of friction time, the wearing and tearing that brake block 512 received can continue the aggravation, so brake block 512's thickness reduces gradually, along with brake block 512's thickness reduces, friction wheel 602 will drive extrusion block 603 and remove to the inside of shifting chute 601, when extrusion block 603 causes the extrusion to pressure squealer 604, pressure squealer 604 starts to send out the ring, remind the workman to change, avoid some to detect car 1 speed governing, thereby reached when brake block 512 wearing and tearing are too big, remind the workman to change the effect of avoiding some to detect car 1 speed governing automatically.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A railway track external defect detection device, includes detection car (1), its characterized in that: the bottom of the detection vehicle (1) is fixedly connected with a support frame (2), the side face of the support frame (2) is rotatably connected with a support shaft (3), one side, far away from the support frame (2), of the support shaft (3) is rotatably connected with wheels (4), speed regulating mechanisms (5) are arranged inside and above the wheels (4), each speed regulating mechanism (5) comprises a groove (501) formed in one side, connected with a rail, of each wheel (4), each speed regulating mechanism (5) comprises a reminding mechanism (6), and a steel rail (7) is arranged below the detection vehicle (1);
the inner wall of the groove (501) is fixedly connected with a supporting spring (502), the other side of the supporting spring (502) is fixedly connected with a receiving ball (503), a horizontal cavity (507) is arranged inside the supporting shaft (3), a gravity block (508) is connected inside the horizontal cavity (507) in a sliding manner, an extension spring (509) is fixedly connected to the side surface of the gravity block (501), an extrusion air plate (510) is arranged on one side of the horizontal cavity (507) and on one side of the gravity block (508), one side of the extrusion air plate (510) far away from the gravity block (508) is fixedly connected with a top rod (511), the other side of the mandril (511) is fixedly connected with a brake block (512), a driving wheel (504) is arranged above the wheel (4), the inner part of the driving wheel (504) is connected with a centrifugal plate (505) in a sliding mode, and the side face of the centrifugal plate (505) is fixedly connected with a transmission rod (506).
2. A railway track external defect detection apparatus as claimed in claim 1, wherein: the receiving ball (503) is positioned in the groove (501), the boundary of the receiving ball does not extend out of the groove (501), and the groove (501) is formed in one surface, connected with the rail, of the outer portion of the wheel (4).
3. A railway track external defect detection apparatus as claimed in claim 2, wherein: the centrifugal plates (505) are connected through a connecting spring, and cannot be thrown out of the driving wheel (504) when the driving wheel (504) rotates.
4. A railway track external defect detection apparatus as claimed in claim 1, wherein: reminding mechanism (6) including removal groove (601), the inside in removal groove (601) is provided with friction pulley (602), the surperficial rotation of friction pulley (602) is connected with extrusion piece (603), extrusion piece (603) are close to the inside one side in removal groove (601) and are provided with pressure squealer (604).
5. The apparatus for detecting external defects of a railway track according to claim 4, wherein: the friction wheel (602) has extrusion force with the inner wall of the wheel (4) at the beginning, and the moving groove (601) is formed in one side, away from the center of the supporting shaft (3), of the brake block (512).
6. A railway track external defect detection apparatus as claimed in claim 5, wherein: and a limiting spring is arranged on the side surface of the extrusion block (603), and the other side of the limiting spring is fixed on the inner wall of the moving groove (601).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085434.2A CN113525450B (en) | 2021-09-16 | 2021-09-16 | Railway track external defect detection device |
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| CN202111085434.2A CN113525450B (en) | 2021-09-16 | 2021-09-16 | Railway track external defect detection device |
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| CN113525450A CN113525450A (en) | 2021-10-22 |
| CN113525450B true CN113525450B (en) | 2021-12-03 |
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| CN114537467B (en) * | 2022-01-12 | 2023-05-05 | 东南数字经济发展研究院 | Rail weld joint detection device for rail fault diagnosis |
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| CN102390408B (en) * | 2011-10-25 | 2013-12-18 | 张健 | Safety monitoring system of rail wagon |
| CN103171588B (en) * | 2013-03-25 | 2016-03-09 | 湖南铁道职业技术学院 | A kind of locomotive brake brake shoe and rim wear working condition on-line monitoring device |
| CN104442913A (en) * | 2014-12-01 | 2015-03-25 | 南车株洲电力机车有限公司 | Railway vehicle monitoring device |
| CN109572759A (en) * | 2018-11-19 | 2019-04-05 | 中车戚墅堰机车有限公司 | Net rail detects vehicle speed-limiting protection system |
| CN110588710B (en) * | 2019-09-12 | 2024-07-12 | 五邑大学 | Rail inspection vehicle based on rail environment monitoring |
| CN210663833U (en) * | 2019-10-14 | 2020-06-02 | 无锡市力胜粉体科技有限公司 | Explosion-proof device of closed-loop dryer |
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