CN210005455U - visual inspection vehicle for surface defects of rail parts - Google Patents
visual inspection vehicle for surface defects of rail parts Download PDFInfo
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- CN210005455U CN210005455U CN201920610620.5U CN201920610620U CN210005455U CN 210005455 U CN210005455 U CN 210005455U CN 201920610620 U CN201920610620 U CN 201920610620U CN 210005455 U CN210005455 U CN 210005455U
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Abstract
The utility model relates to a machine vision surface defect detects technical field, kinds of track part surface defect vision inspection vehicle is disclosed, including the automobile body chassis underframe, the symmetry sets up the actuating system in four wheels and the drive wheel of automobile body chassis underframe bottom, interval between two symmetrical wheels and the interval phase-match between two tracks, coaxial coupling has photoelectric encoder on the wheel of being connected with actuating system, be equipped with two breachs on the automobile body chassis underframe, the position and two tracks of two breachs are corresponding, two image acquisition devices for gathering two track images correspond two breach settings on the automobile body chassis underframe, still include control system, photoelectric encoder and two image acquisition devices respectively with control system electric signal connection, this kind of track part surface defect vision inspection vehicle can drive, be used for the track to patrol and examine and acquire track data in real time, can replace people's eye to patrol and examine the track state, detection efficiency is high, and simple structure, economical and practical.
Description
Technical Field
The utility model relates to a machine vision surface defect detects technical field, in particular to kinds of track parts surface defect vision inspection car.
Background
With the rapid development of national economy, the rail transit in China is also rapidly developed, subways and high-speed rails become important transportation tools for people to go out, and meanwhile, the running speed and the running density of the subways and the high-speed rails are continuously increased. The integrity and reliability of the rail as a key part of rail transportation plays a crucial role in the safe operation of rail transportation. However, the destructive force of the train on the track component is increased, and the phenomenon is as follows: the fasteners are lost and broken, and various defects such as stripping, abrasion, crushing, fine cracks and the like are formed on the surface of the steel rail.
At present, the mode that manual detection and large-scale professional detection equipment are combined is mostly adopted in domestic track detection, but subways and high-speed railways have the characteristics of large passenger capacity, high traveling density, short maintenance time, narrow field and the like, so most of track inspection is implemented in daily maintenance and can only be carried out by means of manual work and small-sized equipment, and the detection efficiency of track detection is low. Therefore, the detection requirement of modern rail transit cannot be met more and more only by means of manpower and small handheld equipment, and large professional equipment needs a large amount of capital investment and is high in cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides an kinds of track part surface defect vision inspection car can solve the above-mentioned problem among the prior art.
The utility model provides an track parts surface defect vision inspection vehicle, including the automobile body chassis underframe, the symmetry sets up in automobile body chassis underframe bottom and through four wheels of hub connection, the actuating system of drive wheel, a serial communication port is that the interval between two symmetrical wheels and the interval phase-match between two tracks, coaxial coupling has photoelectric encoder on the wheel of being connected with actuating system, be equipped with two breachs on the automobile body chassis underframe, the position of two breachs corresponds with two tracks, two image acquisition devices for gathering two track images correspond two breach settings on the automobile body chassis underframe, still include control system, photoelectric encoder and two image acquisition devices respectively with control system electric signal connection.
And light source devices for providing exposure for the track images are further arranged at the two notches.
The light source device comprises a hinge, a light source supporting tube, pull rings and a screw rod, wherein the lower end of the light source supporting tube is fixed on a chassis frame of a vehicle body, surfaces of the hinge are fixed on the light source supporting tube, the other surfaces of the hinge are fixedly connected with a shell of the light source, the screw rod sequentially penetrates through the shell of the light source, a movable surface and a fixed surface of the hinge and is fixedly connected with the pull rings arranged on the light source supporting tube, two nuts are sleeved on the screw rod, nuts are positioned on the outer side of the light source shell, the other nuts are positioned on the inner side of the movable surface of the hinge, the angle of the light source is adjusted by adjusting the positions of the two nuts, the light source is electrically connected with a light source controller, and the light source controller.
The image acquisition device is a linear array CCD camera and is arranged on the chassis frame of the vehicle body in a sliding mode.
The left and right sides of two breachs on the automobile body chassis underframe all is equipped with two horizontal slide rails, all is equipped with horizontal slider on two horizontal slide rails, and the top of horizontal slider is fixed with vertical slide rail, all is equipped with vertical slider on two vertical slide rails, connects through the camera fixed plate between two vertical sliders, and the linear array CCD camera is fixed on the camera fixed plate.
The driving system comprises a motor, an th gear, an auxiliary gear, a second gear, a short shaft and a bearing seat, wherein the motor is fixed on a motor fixing pipe on a chassis frame of the vehicle body, the th gear is installed on an output shaft of the motor, the auxiliary gear is arranged on the motor fixing pipe through the short shaft and the bearing seat, the second gear is fixed on a shaft between two symmetrical rear wheels, the th gear is matched with the second gear through the auxiliary gear, and the motor is connected with a power supply through a starting switch.
The control system includes: the lithium cell, the dc-to-ac converter, control circuit module and industrial computer, the lithium cell provides the direct current, the dc-to-ac converter turns into the direct current, for entire system power supply, control circuit module includes the singlechip, the singlechip is used for reading and handling photoelectric encoder's output signal, and according to photoelectric encoder just reverse the difference of output signal, judge the turning to of track inspection car wheel, the pulse count to photoelectric encoder output simultaneously, thereby record the mileage, two image acquisition device are connected with industrial computer signal respectively, industrial computer is used for receiving, show and store the image information that image acquisition device gathered.
A computer supporting tube is also fixed on the chassis frame of the car body, a computer supporting plate is obliquely fixed at the top of the computer supporting tube, the industrial computer is placed on the computer supporting plate, and an anti-skid plate is arranged around the computer supporting plate; and a seat support frame is also arranged on the chassis frame of the vehicle body, and a seat is arranged on the seat support frame.
A plurality of supporting pipes are arranged around the motor, and dust covers are arranged at the tops of the supporting pipes.
The vehicle body chassis frame includes: the fixed pipe of two wheels, the fixed pipe of many motors, many square tubes, many rectangular pipes and polylith steel sheet, the axle of symmetry wheel passes through the bearing and fixes the setting on the fixed pipe of wheel, the both ends of the fixed pipe of many motors, the both ends of many rectangular pipes respectively with square tub of fixed connection, polylith steel sheet is fixed on the support that the fixed pipe of wheel, the fixed pipe of many motors, many square tubes and many rectangular pipes are constituteed.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a high-speed industrial camera, the light source, equipment such as computer is used for track image data's acquirement, it conveys to control circuit to produce pulse signal with the coaxial rotation of wheel through photoelectric encoder, control circuit reads and handles pulse signal, simultaneously to the pulse count, realize the mileage record, pulse transfer after the processing conveys to the camera, be used for triggering the camera and shoot track image in real time, the image that acquires shows through ethernet transmission to industrial computer, storage and processing, this kind of track part surface defect vision inspection car can gather clear track image in real time and be convenient for follow-up image analysis, a for replace people's eye to patrol the track, high detection efficiency, and simple structure, economical and practical.
Drawings
Fig. 1 is the schematic view of the bottom view structure of the visual inspection vehicle for surface defects of rail components provided by the present invention.
Fig. 2 is the utility model provides a structural schematic is looked to kinds of track part surface defect vision inspection car's owner.
Fig. 3 is the utility model provides a structure sketch map is looked to the left side of kinds of track part surface defect vision inspection cars.
Fig. 4 is a schematic view of the top view structure of the visual inspection vehicle for surface defects of rail components provided by the present invention.
Fig. 5 is a schematic perspective view of the visual inspection vehicle for surface defects of kinds of rail components provided by the present invention.
Description of reference numerals:
in the figure, 1-wheel fixing tube, 2-motor fixing tube, 3-square tube, 4-rectangular tube, 5-motor, 6- gear, 7-auxiliary gear, 8-second gear, 9-short shaft, 10-bearing seat, 11-supporting tube, 12-dust cover, 13-seat supporting frame, 14-computer supporting plate, 15-seat, 16-lithium battery, 17-control circuit module, 18-light source controller, 19-hinge, 20-light source, 21-light source supporting tube, 22-steel plate, 23-pull ring, 24-screw rod, 25-linear array CCD camera, 26-camera fixing plate, 27-vertical slide rail, 28-vertical slide block, 29-slide rail connecting tube, 30-horizontal slide rail, 31-column rod, 32-wheel, 33-photoelectric encoder, 34-encoder fixing plate, 35-industrial computer, 36-antiskid plate and 37-computer supporting tube.
Detailed Description
The following detailed description of specific embodiments of the present invention will be made with reference to the accompanying drawings of fig. 1-5, but it should be understood that the scope of the present invention is not limited by the specific embodiments.
As shown in FIG. 1, the utility model provides an kinds of track part surface defect vision inspection vehicle, including the automobile body chassis underframe, the symmetry sets up four wheels 32 in automobile body chassis underframe bottom and through the hub connection, the actuating system of driving wheel, the interval between two symmetrical wheels 32 and the interval phase-match between two tracks, coaxial coupling has photoelectric encoder 33 on the wheel 32 of being connected with actuating system, be equipped with two breachs on the automobile body chassis underframe, the position of two breachs corresponds with two tracks, two image acquisition devices for gathering two track images correspond two breach settings on the automobile body chassis underframe, still include control system, photoelectric encoder and two image acquisition devices respectively with control system electric signal connection.
The use method and the working principle are as follows: the car that patrols and examines starts the back, and photoelectric encoder produces pulse signal with the coaxial rotation of wheel and conveys to control system, and control system reads and handles pulse signal, counts the pulse simultaneously, realizes patrolling and examining car mileage record, and pulse after the processing conveys to image acquisition device, is used for triggering image acquisition device and shoots track image in real time, and the image transmission who acquires shows to control system, storage and processing, the utility model discloses can gather orbital image in real time, replace people's eye to patrol to the track, detection efficiency is high.
The photoelectric encoder 33 is fixed to the encoder fixing plate 34, and the rotary terminal of the photoelectric encoder 33 is fixed to the axle center of the wheel 32 via the cylindrical rod 31.
The photoelectric encoder 33 is connected with the wheel 32 of the rail inspection vehicle and rotates with the wheel 32 , the coaxial rotation is kept to generate pulse signals, the pulse signals are transmitted to the control system, the control system reads and processes the output signals of the photoelectric encoder 33, the steering of the wheel of the rail inspection vehicle is judged according to the difference of the positive and negative rotation output signals of the photoelectric encoder 33, and meanwhile, the pulses output by the photoelectric encoder 33 are counted to realize mileage recording.
In order to make the image captured by the image acquisition device more effective, a light source device for providing exposure for the track image is also arranged at the two notches.
In order to better acquire the pictures of the surface defects of the rail parts, the angle of the light source needs to be adjusted, the light source device adopted by the utility model comprises a hinge 19, a light source 20, a light source supporting tube 21, a pull ring 23 and a screw rod 24, wherein the lower end of the light source supporting tube 21 is fixed on a chassis frame of the vehicle body, faces of the hinge 19 are fixed on the light source supporting tube 21, another faces of the hinge 19 are fixedly connected with a shell of the light source 20, the screw rod 24 sequentially passes through the shell of the light source 20, the movable face and the fixed face of the hinge 19 and is fixedly connected with the pull ring 23 arranged on the light source supporting tube 21, two nuts are sleeved on the screw rod 24, nuts are positioned on the outer side of the shell of the light source 20, another nuts are positioned on the inner side of the movable face of the hinge 19, the angle of the light source 20 is adjusted by adjusting the positions of the two nuts, the light source 20 is electrically connected with the light source controller 18.
The using method comprises the following steps: the angle between the movable surface and the fixed surface of the hinge 19 is adjusted by adjusting the positions of the two nuts, so that the angle of the light source 20 is adjusted, the light source controller provides a constant current source for the light source, the stability of the current of the input light source is ensured, and the illumination intensity is uniform. The two nuts fix the light source to avoid shaking of the light source.
In order to better acquire the pictures of the defects on the surface of the rail component, the image acquisition device adopts a linear array CCD camera 25, and the image acquisition device is arranged on a chassis frame of the vehicle body in a sliding mode.
The left and right sides of two breachs on the automobile body chassis underframe all is equipped with two horizontal slide rails 30, all is equipped with horizontal slider on two horizontal slide rails 30, and the top of horizontal slider is fixed with vertical slide rail 27, all is equipped with vertical slider 28 on two vertical slide rails 27, connects through camera fixed plate 26 between two vertical slider 28, and linear array CCD camera 25 fixes on camera fixed plate 26.
The using method comprises the following steps: by moving the two vertical slide rails 27, the two vertical slide rails 27 slide back and forth in the two horizontal slide rails 30, so that the linear array CCD camera 25 moves back and forth along the rail to adjust the front and back position, and by moving the camera fixing plate 26 up and down, the linear array CCD camera 25 can be adjusted in the up and down position, so that when the surface defects of the rail are found, the surface defects of the rail can be shot clearly, the surface of the rail can be repaired conveniently, and the use is convenient.
As shown in fig. 2, in order to make the line CCD camera 25 more stable, a slide rail connecting pipe 29 may be fixed to the horizontal slider, and the horizontal slider may be connected to the vertical slide rail 27 through the slide rail connecting pipe 29.
As shown in fig. 2 and 3, the driving system comprises a motor 5, an th gear 6, an auxiliary gear 7, a second gear 8, a stub shaft 9 and a bearing seat 10, wherein the motor 5 is fixed on a motor fixing pipe 2 on a chassis frame of a vehicle body, the th gear 6 is installed on an output shaft of the motor 5, the auxiliary gear 7 is arranged on the motor fixing pipe 2 through the stub shaft 9 and the bearing seat 10, the second gear 8 is fixed on a shaft between two symmetrical rear wheels 32, the th gear 6 is matched with the second gear 8 through the auxiliary gear 7, and the motor 5 is connected with a power supply through a starting switch.
The driving system has the working principle that the motor 5 drives the th gear 6 to rotate, the th gear 6 drives the second gear 8 to rotate through the auxiliary gear 7, the second gear 8 drives the shaft to rotate, the shaft rotates to drive the two rear wheels 32 to rotate, and therefore the wheels move forwards, and the wheels move backwards through the reverse rotation of the motor 5.
The control system includes: lithium cell 16, the dc-to-ac converter, control circuit module 17 and light source controller 18 and industrial computer 35, lithium cell 16 converts the direct current into the alternating current through the inverter, for whole system power supply, control circuit module 17 includes the singlechip, the singlechip is used for reading and handling photoelectric encoder 33's output signal, and according to photoelectric encoder 33 forward reverse output signal's difference, judge the turning to of track inspection car wheel, the pulse count to photoelectric encoder output simultaneously, thereby record the mileage, two image acquisition device are with industrial computer 35 signal connection respectively, industrial computer 35 is used for receiving, the image information that the image acquisition device gathered.
The working principle of the control system is as follows: the inverter converts direct current into alternating current, the power supply is a lithium battery 16, and the direct current is converted into alternating current through the inverter to supply power to each power consumption device. The control circuit module takes the single chip microcomputer as a control center and is used for reading and processing output signals of the photoelectric encoder, judging the steering of the wheels of the rail inspection vehicle according to the difference of positive and negative rotation output signals of the photoelectric encoder, and counting pulses output by the photoelectric encoder to realize mileage recording.
A computer support tube 37 is further fixed on the chassis frame of the vehicle body, a computer support plate 14 is obliquely fixed on the top of the computer support tube 37, the industrial computer 35 is placed on the computer support plate 14, and an anti-slip plate 36 is arranged around the computer support plate 14 to prevent the industrial computer 35 from slipping in the running process of the inspection vehicle.
Still be equipped with seat support frame 13 on the automobile body chassis underframe, be equipped with seat 15 on the seat support frame 13, make things convenient for the personnel of patrolling and examining to look over the picture or the video of image acquisition device collection.
A plurality of supporting pipes 11 are arranged on the periphery of the motor 5, a dustproof cover 12 is arranged at the top of each supporting pipe 11, and the motor 5 is protected through the dustproof cover 12.
The vehicle body chassis frame includes: fixed pipe 1 of two wheels, the fixed pipe 2 of many motors, many square type pipes 3, many rectangular pipes 4 and polylith steel sheet 22, the axle of symmetry wheel 32 passes through the bearing and fixes the setting on the fixed pipe 1 of wheel, the fixed both ends of managing 1 of wheel, the both ends of the fixed pipe 2 of many motors, the both ends of many rectangular pipes 4 respectively with 3 fixed connection of square type pipe, polylith steel sheet 22 is fixed on the support that the fixed pipe 1 of wheel, the fixed pipe 2 of many motors, many square type pipes 3 and many rectangular pipes 4 are constituteed, automobile body chassis frame simple structure, the steel sheet adopts the thin steel sheet, economical and practical.
The computer support tube 37 is placed right in front of the seat 15, the end of the computer support tube 37 is fixed on a chassis frame of the vehicle body, the other end is fixed with a computer support plate 38 at an oblique angle, and the periphery of the computer support plate is provided with a skid-proof plate 39 for placing an industrial computer 35.
The utility model discloses a module assembly mode divide into camera module, light source module, wheel module, control system and automobile body chassis underframe, through connector interconnect between a plurality of modules for the inspection vehicle easily assembles and reequips, and expandable ability is strong.
The utility model discloses a track part surface defect vision inspection vehicle wholly adopts the modularization, and expandable ability is strong, easily equipment and repacking.
The visual inspection vehicle for the surface defects of the rail parts provides platforms for carrying cameras and light sources and also provides platforms for workers.
The light source can rely on hinge angle regulation, and the camera can rely on the slide rail to reciprocate from beginning to end, and both cooperate to reach best shooting effect.
The visual inspection vehicle for the surface defects of the rail parts can collect and process the defects of the rail parts on line.
The camera fixing plate may be set according to the type of camera, for example, a two-dimensional camera and a three-dimensional camera.
The utility model discloses a high-speed industrial camera, the light source, equipment such as computer is used for track image data's acquirement, it conveys to control circuit to produce pulse signal with the coaxial rotation of wheel through photoelectric encoder, control circuit reads and handles pulse signal, simultaneously to the pulse count, realize the mileage record, pulse transfer after the processing conveys to the camera, be used for triggering the camera and shoot track image in real time, the image that acquires shows through ethernet transmission to industrial computer, storage and processing, this kind of track part surface defect vision inspection car can gather clear track image in real time and be convenient for follow-up image analysis, a for replace people's eye to patrol the track, high detection efficiency, and simple structure, economical and practical.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.
Claims (10)
- The visual inspection vehicle for the surface defects of the track parts comprises a vehicle body chassis frame, four wheels (32) which are symmetrically arranged at the bottom of the vehicle body chassis frame and connected through a shaft, and a driving system for driving the wheels, and is characterized in that the distance between the two symmetrical wheels (32) is matched with the distance between the two tracks, a photoelectric encoder (33) is coaxially connected onto the wheel (32) connected with the driving system, two notches are arranged on the vehicle body chassis frame, the positions of the two notches correspond to the two tracks, two image acquisition devices for acquiring images of the two tracks are arranged on the vehicle body chassis frame corresponding to the two notches, and the visual inspection vehicle further comprises a control system, wherein the photoelectric encoder and the two image acquisition devices are respectively in electrical signal connection with the control system.
- 2. The visual inspection vehicle of surface defects of rail parts according to claim 1, characterized in that light source devices for providing exposure for rail images are further arranged at the two notches.
- 3. The visual inspection vehicle for the surface defects of the rail parts as claimed in claim 2, wherein the light source device comprises a hinge (19), a light source (20), a light source supporting tube (21), a pull ring (23) and a screw rod (24), the lower end of the light source supporting tube (21) is fixed on a chassis frame of the vehicle body, faces of the hinge (19) are fixed on the light source supporting tube (21), the other faces of the hinge (19) are fixedly connected with a shell of the light source (20), the screw rod (24) sequentially penetrates through the shell of the light source (20), a movable face and a fixed face of the hinge (19) and the pull ring (23) arranged on the light source supporting tube (21), two nuts are sleeved on the screw rod (24), nuts are positioned on the outer side of the shell of the light source (20), the other nuts are positioned on the inner side of the movable face of the hinge (19), the angle of the light source (20) is adjusted by adjusting the positions of the two nuts, the light source (20) is electrically connected with the light source controller (18), the light source is used for providing the light source (20), ensuring the input of the light source (20.
- 4. The visual inspection vehicle for surface defects of track parts according to claim 1, characterized in that the image acquisition device adopts a line CCD camera (25), and the image acquisition device is slidably arranged on a chassis frame of the vehicle body.
- 5. The visual inspection vehicle for the surface defects of the rail parts according to claim 4, wherein two horizontal slide rails (30) are arranged on the left and right sides of the two notches on the chassis frame of the vehicle body, horizontal slide blocks are arranged on the two horizontal slide rails (30), vertical slide rails (27) are fixed on the tops of the horizontal slide blocks, vertical slide blocks (28) are arranged on the two vertical slide rails (27), the two vertical slide blocks (28) are connected through a camera fixing plate (26), and the linear array CCD camera (25) is fixed on the camera fixing plate (26).
- 6. The visual inspection vehicle for the surface defects of the rail parts, according to claim 1, is characterized in that the driving system comprises a motor (5), a th gear (6), an auxiliary gear (7), a second gear (8), a stub shaft (9) and a bearing seat (10), wherein the motor (5) is fixed on a motor fixing pipe (2) on a chassis frame of a vehicle body, the th gear (6) is installed on an output shaft of the motor (5), the auxiliary gear (7) is arranged on the motor fixing pipe (2) through the stub shaft (9) and the bearing seat (10), the second gear (8) is fixed on a shaft between two symmetrical rear wheels (32), the th gear (6) is matched with the second gear (8) through the auxiliary gear (7), and the motor (5) is connected with a power supply through a starting switch.
- 7. The rail component surface imperfection visual inspection vehicle of claim 1, wherein the control system comprises: lithium cell (16), the inverter, control circuit module (17) and industrial computer (35), lithium cell (16) provide the direct current, the inverter turns into the alternating current with the direct current, for entire system power supply, control circuit module (17) include the singlechip, the singlechip is used for reading and handling photoelectric encoder (33)'s output signal, and according to photoelectric encoder (33) difference of positive reverse output signal, judge the turning to of track inspection car wheel, the pulse count to photoelectric encoder output simultaneously, thereby record the mileage, two image acquisition device respectively with industrial computer (35) signal connection, industrial computer (35) are used for receiving, show and store the image information that image acquisition device gathered.
- 8. The visual inspection vehicle for the surface defects of the rail parts according to claim 7, characterized in that a computer support tube (37) is further fixed on the chassis frame of the vehicle body, a computer support plate (14) is obliquely fixed on the top of the computer support tube (37), an industrial computer (35) is placed on the computer support plate (14), and a skid plate (36) is arranged around the computer support plate (14); a seat support frame (13) is further arranged on the chassis frame of the vehicle body, and a seat (15) is arranged on the seat support frame (13).
- 9. The visual inspection vehicle for surface defects of track parts according to claim 6, characterized in that a plurality of support pipes (11) are arranged around the motor (5), and a dust cover (12) is arranged on the top of the plurality of support pipes (11).
- 10. The rail component surface imperfection visual inspection vehicle of claim 1, wherein the vehicle body chassis frame comprises: fixed pipe (1) of two wheels, many fixed pipes of motor (2), many square tube (3), many rectangular pipe (4) and polylith steel sheet (22), the axle of symmetry wheel (32) passes through the fixed setting on fixed pipe of wheel (1) of bearing, the both ends of the fixed pipe of wheel (1), the both ends of the fixed pipe of many motors (2), the both ends of many rectangular pipe (4) respectively with square tube (3) fixed connection, polylith steel sheet (22) are fixed at fixed pipe of wheel (1), many fixed pipes of motor (2), many square tube (3) and many support that rectangular pipe (4) are constituteed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610620.5U CN210005455U (en) | 2019-04-29 | 2019-04-29 | visual inspection vehicle for surface defects of rail parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610620.5U CN210005455U (en) | 2019-04-29 | 2019-04-29 | visual inspection vehicle for surface defects of rail parts |
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| Publication Number | Publication Date |
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| CN210005455U true CN210005455U (en) | 2020-01-31 |
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| CN201920610620.5U Expired - Fee Related CN210005455U (en) | 2019-04-29 | 2019-04-29 | visual inspection vehicle for surface defects of rail parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975315A (en) * | 2019-04-29 | 2019-07-05 | 南昌工程学院 | A kind of track component surface defect vision inspection car |
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2019
- 2019-04-29 CN CN201920610620.5U patent/CN210005455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975315A (en) * | 2019-04-29 | 2019-07-05 | 南昌工程学院 | A kind of track component surface defect vision inspection car |
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Granted publication date: 20200131 Termination date: 20210429 |