A contact line automatic maintenance vehicle

Abstract

The utility model provides a kind of contact line automatic maintenance car, including rail car, be equipped with lifting platform on the rail car, be equipped with rotary table on the lifting platform, be equipped with mounting seat above the rotary table, be equipped with polishing mechanism and visual detection module on the mounting seat, and visual detection module is located in front of polishing mechanism, the working surface state of contact line is identified continuously by visual detection module, and the working surface of contact line is chamfered, polished and polished in real time by starting polishing mechanism.This application sets visual detection module and polishing mechanism on rail car, and the working surface state of contact line is identified continuously by visual detection module, and the working surface of contact line is chamfered, polished and polished in real time by starting polishing mechanism, with high operation and maintenance efficiency and good safety, while reducing the number of operation and maintenance personnel and reducing operation and maintenance cost.

Description

Technical Field

[0001] This invention belongs to the field of overhead contact line maintenance technology for electrified railways, and particularly relates to an automatic contact line maintenance vehicle. Background Technology

[0002] In the overhead contact system of electrified railways, vehicles draw current through contact with the contact wire via pantographs. In certain sections, arcing, abnormal friction, and other factors can cause roughness, burrs, and wire breakage on the contact wire's working surface. If contact wire maintenance is not performed promptly, severe uneven wear on the contact wire and pantograph contactor can easily occur, and excessive wire breakage can lead to short circuits. Abnormal friction between the contact wire and the pantograph contactor causes a sharp increase in wear and damage to the surface of the sectional insulators in contact with the pantograph contactor, shortening the replacement cycle of the contact wire, pantograph contactor, and sectional insulators, and increasing maintenance costs.

[0003] Currently, the main method of contact wire maintenance is manual on-site inspection and manual or auxiliary simple equipment for grinding and maintenance. The labor cost and workload are very high, the grinding and repair accuracy and quality cannot be guaranteed, and the grinding efficiency is low. At the same time, the large amount of metal particles and dust generated during the grinding process will seriously affect the health of the workers and pollute the environment. In addition, manual high-altitude work also poses safety hazards. Summary of the Invention

[0004] This invention provides an automatic contact line maintenance vehicle to overcome the shortcomings of the prior art.

[0005] The technical solution adopted in this invention is: an automatic contact line maintenance vehicle, including a railcar, a lifting platform on the railcar, a rotary table on the lifting platform, a mounting base above the rotary table, a grinding mechanism and a vision inspection module on the mounting base, and the vision inspection module is located in front of the grinding mechanism. The vision inspection module continuously identifies the working surface state of the contact line and starts the grinding mechanism in real time to chamfer, grind and polish the working surface of the contact line.

[0006] Furthermore, the polishing mechanism includes a left chamfering polishing module, a right chamfering polishing module, a bottom surface polishing module, and a bottom surface polishing module arranged sequentially from front to back.

[0007] The left chamfering grinding module, right chamfering grinding module, bottom surface grinding module, and bottom surface polishing module all include a base, a grinding roller, and an electric push rod. An electric push rod and a guide rod are vertically mounted on the base. A grinding roller mounting bracket is fixed to the top of the electric push rod and guide rod. A grinding roller and a motor are horizontally mounted on the grinding roller mounting bracket, with the grinding roller arranged perpendicular to the line direction. The electric push rod drives the grinding roller mounting bracket to move up and down, and the motor drives the grinding roller to rotate. The base of the left chamfering grinding module is tilted and fixed to the mounting base, causing the grinding roller on it to tilt to the right side of the line. The base of the right chamfering grinding module is tilted and fixed to the mounting base, causing the grinding roller on it to tilt to the left side of the line. The bases of the bottom surface grinding module and the bottom surface polishing module are horizontally fixed to the mounting base, ensuring that the grinding roller on them is parallel to the bottom surface of the contact line.

[0008] Furthermore, the railcar is equipped with a dust removal device, and a dust collection hood is installed below the grinding roller, with the dust collection hood connected to the dust removal device via a pipe.

[0009] Furthermore, the railcar is equipped with an electrical control box and a power supply, which supplies power to the railcar, lifting platform, rotary table, vision inspection module, electric push rod, and motor through the electrical control box.

[0010] Furthermore, the driver's cab of the railcar is equipped with a touch control screen, which is electrically connected to the electrical control box. The touch control screen displays the images collected by the visual inspection module and starts the grinding mechanism in real time to chamfer, grind and polish the working surface of the contact line.

[0011] Furthermore, an automatic lubrication mechanism is also fixed on the mounting base, and the automatic lubrication mechanism is located behind the grinding mechanism to lubricate the bottom surface of the contact line.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This invention sets up a vision inspection module and a grinding mechanism on a railcar. The vision inspection module continuously identifies the working surface status of the contact line, and the grinding mechanism is activated in real time to chamfer, grind and polish the working surface of the contact line. This results in high operation and maintenance efficiency, good safety, and reduces the number of operation and maintenance personnel and lower operation and maintenance costs.

[0014] 2. The grinding mechanism of this invention is equipped with four automatic grinding modules: left chamfer grinding, right chamfer grinding, bottom surface grinding, and polishing. It can grind the working surface of the contact line in all directions, and improve the grinding accuracy through the polishing module, improve the relationship between the pantograph and the catenary, reduce abnormal wear of the contact line and the pantograph plate, and extend the service life of the contact line and the pantograph plate.

[0015] 3. The present invention can also activate the corresponding left chamfer grinding, right chamfer grinding, bottom grinding and polishing modules in a timely manner according to different states of the working surface of the contact line, which can not only ensure that the working surface is in good condition after the contact line maintenance, but also minimize the wear caused by the contact line maintenance.

[0016] 4. The present invention is not affected by changes in the pull-out value and conductor height of the contact wire during grinding and polishing. It is also not affected by the anchor joint and segment insulator when grinding the contact wire of the rigid busbar. It can work continuously and has high work efficiency.

[0017] 5. The present invention also provides an automatic lubrication mechanism behind the grinding mechanism to lubricate the bottom surface of the contact wire, thereby reducing the friction coefficient between the pantograph slide plate and the contact wire and reducing the wear of the contact wire and the pantograph slide plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the grinding module structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation and arrangement of the grinding mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the working state of the grinding roller of the present invention;

[0022] Figure 5 This is a schematic diagram of the automatic lubrication mechanism of the present invention. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in detail below with reference to specific embodiments.

[0024] An automatic contact wire maintenance vehicle includes a railcar 1, a lifting platform 2 on the railcar 1, a rotary table 3 on the lifting platform 2, a mounting base 4 above the rotary table 3, a grinding mechanism 5 and a vision inspection module 6 on the mounting base 4, with the vision inspection module 6 located in front of the grinding mechanism 5. The vision inspection module 6 continuously identifies the working surface state of the contact wire 18 and starts the grinding mechanism 5 in real time to chamfer, grind and polish the working surface of the contact wire 18.

[0025] In one embodiment, the grinding mechanism 5 includes a left chamfering grinding module 5-1, a right chamfering grinding module 5-2, a bottom surface grinding module 5-3, and a bottom surface polishing module 5-4 arranged sequentially from front to back. Each of the left chamfering grinding module 5-1, right chamfering grinding module 5-2, bottom surface grinding module 5-3, and bottom surface polishing module 5-4 includes a base 7, a grinding roller 8, and an electric push rod 9. The electric push rod 9 and a guide rod 12 are vertically mounted on the base 7. A grinding roller mounting bracket 11 is fixed to the top of the electric push rod 9 and the guide rod 12. The grinding roller 8 and a motor 10 are horizontally mounted on the grinding roller mounting bracket 11, and the grinding roller 8 is arranged perpendicular to the circuit direction. Grinding is driven by the electric push rod 9. The roller mounting bracket 11 moves up and down, driving the grinding roller 8 to rotate via the motor 10; the base 7 of the left chamfering grinding module 5-1 is tilted and fixed on the mounting base 4, causing the grinding roller 8 on it to tilt to the right side of the line; the base 7 of the right chamfering grinding module 5-2 is tilted and fixed on the mounting base 4, causing the grinding roller 8 on it to tilt to the left side of the line; the base 7 of the bottom surface grinding module 5-3 and the bottom surface polishing module 5-4 is horizontally fixed on the mounting base 4, making the grinding roller 8 on them parallel to the bottom surface of the contact line 18.

[0026] Specifically, the railcar 1 is preferably an electric railcar, the lifting platform 2 is preferably an electric scissor lift platform, and the rotary table 3 is preferably an electric rotary table. The railcar 1 is equipped with an electrical control box 15 and a power supply 16. The power supply 16 supplies power to the railcar 1, lifting platform 2, rotary table 3, vision inspection module 6, electric push rod 10, and motor 12 via the electrical control box 15. The power supply 16 is a battery or a generator. The electrical control box 15 contains a servo driver, frequency converter, PLC, industrial computer, etc., for controlling the railcar, dust removal device, lifting platform, rotary table, grinding mechanism, and vision inspection module.

[0027] Since the contact wire 18 is arranged in a Z-shape in the horizontal direction, the visual inspection module 6 preferably uses a high-definition camera, or two high-definition cameras are arranged side by side, to ensure that the image obtained when identifying the working surface state of the contact wire 18 is clear and complete. A supplementary light can also be installed on the outside of the visual inspection module 6 to increase the brightness in the shooting area and ensure imaging effect.

[0028] In order to collect and recycle the metal shavings that fall off during the grinding process and protect the environment, the track vehicle 1 is equipped with a dust removal device 13, and a dust collection hood 14 is provided below the grinding roller 8, and the dust collection hood 14 is connected to the dust removal device 13 through a pipe.

[0029] The electric push rod 9 is equipped with a pressure sensor. The pressure signal detected by the pressure sensor is sent to the electrical control box 15. The electrical control box 15 controls the upward stroke of the electric push rod 9 to maintain the grinding roller 8 continuously applying a pressure of 50N to 80N to the contact line 18 to ensure the grinding effect of the contact line.

[0030] When the railcar 1 needs to reverse through the turnout to enter the other side of the track for maintenance, the turntable 3 rotates horizontally by 180°, driving the mounting base 4 to rotate horizontally by 180°, keeping the visual inspection module 6 always in front of the grinding mechanism 5, and completing the maintenance of the contact wire of the other side of the track in the opposite direction.

[0031] Furthermore, an automatic lubrication mechanism 19 is also fixed on the mounting base 4, and the automatic lubrication mechanism 19 is located behind the grinding mechanism 5. In one embodiment, the automatic lubrication mechanism 19 includes a graphite plate 19-1, a bracket 19-2, and a mounting frame 19-3; the graphite plate 19-1 is embedded in the top of the bracket 19-2, and the bracket 19-2 is connected to the mounting frame 19-3 through a vertical guide rod at its lower end. A compression spring 19-4 is fitted on the vertical guide rod between the bracket 19-2 and the mounting frame 19-3. The compression spring 19-4 forces the graphite plate 19-1 to always be in close contact with the bottom surface of the contact line 18, and the bottom surface of the contact line 18 is lubricated by the friction of the graphite plate 19-1 against the bottom surface of the contact line 18.

[0032] Working principle: The track car 1 starts and stops at the working point of the line at a speed of 20km / h. The electric lifting platform 2 is raised to the working position, and the graphite plate 19-1 is in close contact with the contact wire 18. The track car 1 travels at a working speed of 5km / h, and the graphite plate 19-1 rubs against the bottom surface of the contact wire 18, continuously lubricating the bottom surface of the contact wire 18. At the same time, the vision detection module 6 takes pictures of the working surface area of ​​the contact wire and transmits the video signal to the touch control screen 17 through the electrical control box 15. The electrical control box 15 analyzes the video signal to identify whether there are roughness, burrs, or wire-like phenomena on the working surface of the contact wire 18. Then, it sends instructions to the grinding mechanism 5 to chamfer, grind, and polish the working surface of the contact wire 18.

[0033] Working Mode 1: When the vision inspection module 6 detects burrs on the working surface of the contact line, the four grinding modules are simultaneously activated through the electrical control box 15. At this time, the motor 10 drives the grinding roller 8 to rotate at high speed, and the electric push rod 9 pushes the grinding roller 8 to contact the contact line 18, maintaining continuous pressure on the contact line. While the railcar is moving, the working surface of the contact line is continuously chamfered, rough ground, and polished. When the vision inspection module 6 detects that the working surface of the contact line is in normal condition, the electric push rod retracts, the grinding roller disengages from the contact line to a safe position, and stops rotating.

[0034] Working mode 2: When the vision inspection module detects that the roughness value of the bottom surface of the contact line is greater than the normal value, the electrical control box starts the bottom surface grinding module and the bottom surface polishing module, and performs continuous rough grinding and polishing maintenance on the bottom surface of the contact line through the grinding roller.

[0035] Working Mode 3: When the vision inspection module captures particles such as copper shavings, carbon powder, and dust adhering to the bottom surface of the contact line, the electrical control box activates the bottom surface polishing module, which continuously polishes and maintains the bottom surface of the contact line using a polishing roller.

[0036] Working Mode 4: When maintenance is required on the other side of the track after maintenance on one side of the track is completed, the railcar reverses through the turnout to enter the other side of the track. Then, the turntable 3 is started to rotate horizontally by 180° through the electrical control box 15. The visual inspection module 6 is always in front of the grinding mechanism 5. The maintenance of the contact wire of the other side of the track can be completed in the reverse direction according to the working modes 1, 2, and 3 above.

[0037] The driver's cab of the railcar 1 described in this invention is equipped with a touch control screen 17, which is electrically connected to the electrical control box 15. The touch control screen 17 displays images collected by the vision inspection module 6 and activates the grinding mechanism 5 in real time to chamfer, grind, and polish the working surface of the contact line. When the automatic control system of this invention malfunctions, manual operation via the touch control screen 17 can also activate the grinding mechanism 5 in real time to chamfer, grind, and polish the working surface of the contact line.

[0038] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent variations made to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. An automatic contact line maintenance vehicle, comprising a railcar (1), characterized in that: The railcar (1) is equipped with a lifting platform (2), the lifting platform (2) is equipped with a rotary table (3), the rotary table (3) is equipped with a mounting base (4), the mounting base (4) is equipped with a grinding mechanism (5) and a vision inspection module (6), and the vision inspection module (6) is located in front of the grinding mechanism (5). The vision inspection module (6) continuously identifies the working surface status of the contact line (18) and starts the grinding mechanism (5) in real time to chamfer, grind and polish the working surface of the contact line (18). The polishing mechanism (5) includes a left chamfering polishing module (5-1), a right chamfering polishing module (5-2), a bottom surface polishing module (5-3), and a bottom surface polishing module (5-4) arranged sequentially from front to back. Each of the left chamfering polishing module (5-1), right chamfering polishing module (5-2), bottom surface polishing module (5-3), and bottom surface polishing module (5-4) includes a base (7), a polishing roller (8), and an electric push rod (9). The electric push rod (9) and a guide rod (12) are vertically mounted on the base (7). A polishing roller mounting bracket (11) is fixed to the top of the electric push rod (9) and the guide rod (12). The polishing roller (8) is horizontally mounted on the polishing roller mounting bracket (11). The grinding roller (8) is arranged perpendicular to the line direction and is driven by the electric push rod (9) to move the grinding roller mounting frame (11) up and down, and driven by the motor (10) to rotate the grinding roller (8); the base (7) of the left chamfer grinding module (5-1) is tilted and fixed on the mounting base (4) so ​​that the grinding roller (8) on it is tilted to the right side of the line, the base (7) of the right chamfer grinding module (5-2) is tilted and fixed on the mounting base (4) so ​​that the grinding roller (8) on it is tilted to the left side of the line, and the base (7) of the bottom surface grinding module (5-3) and the bottom surface polishing module (5-4) is horizontally fixed on the mounting base (4) so ​​that the grinding roller (8) on it is parallel to the bottom surface of the contact line; The railcar (1) is equipped with an electrical control box (15) and a power supply (16). The power supply (16) supplies power to the railcar (1), lifting platform (2), turntable (3), vision inspection module (6), electric push rod (9), and motor (10) through the electrical control box (15). The driver's cab of the railcar (1) is equipped with a touch control screen (17). The touch control screen (17) is electrically connected to the electrical control box (15). The touch control screen (17) displays the images collected by the vision inspection module (6) and starts the grinding mechanism (5) in real time to chamfer, grind, and polish the working surface of the contact line.

2. The automatic contact wire maintenance vehicle according to claim 1, characterized in that: The track vehicle (1) is equipped with a dust removal device (13), and a dust collection hood (14) is provided below the grinding roller (8), and the dust collection hood (14) is connected to the dust removal device (13) through a pipe.

3. The automatic contact line maintenance vehicle according to claim 2, characterized in that: An automatic lubrication mechanism (19) is also fixed on the mounting base (4), and the automatic lubrication mechanism (19) is located behind the grinding mechanism (5) to lubricate the bottom surface of the contact line (18).

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