Rigid contact line comprehensive inspection and polishing device

Abstract

The invention provides a comprehensive inspection and polishing device for a rigid contact line. The problems that when an existing contact line is abraded abnormally, the contact line is manually polished, labor intensity is large, and efficiency is low are solved. The suspension unit is erected on the busbar through the clamping unit and is driven to move along the busbar, and after the abrasion condition of a contact line on the busbar is detected through the detection module on the suspension unit, the height of the grinding wheel at the corresponding position is adjusted through the adjusting mechanism for grinding; the stability of the grinding quality in the grinding process is guaranteed through height step type adjustment grinding of the multiple grinding wheels and step-by-step progressive grinding degree, and through automatic operation, the inspection and grinding period is greatly shortened, the maintenance efficiency is improved, manual operation is reduced, the operation risk is reduced, and the operation safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of track power supply, and particularly relates to a comprehensive inspection and grinding device for a rigid contact wire. Background Art

[0002] In recent years, with the increasing living standards of people and the promotion of rural urbanization, a large number of urban populations have flocked in. Compared with public transportation, rail transit has many advantages such as large carrying capacity, fast driving speed, and good safety, so many cities have carried out the construction of urban rail transit in order to relieve traffic pressure.

[0003] For the subway power supply system, flexible contact wires or third rails are generally used in subway yards and elevated sections; rigid contact wires or third rails are generally used for power supply in underground tunnel sections. These three power supply methods of flexible contact wires, rigid contact wires, and third rails have their own advantages and disadvantages. The rigid contact wire mainly consists of structures such as an overhead rigid busbar, a contact wire, a support and positioning device, an insulating component, and an overhead ground wire. Due to its simple structure, no tension on the contact wire, no worry of wire breakage, and convenient maintenance, etc., it is widely used in subway tunnel sections, that is, most subway tunnel sections in China use rigid contact wires for power supply. When using the third rail for power supply, the vehicle takes current by using a contact shoe; when using flexible or rigid contact wires for power supply, the vehicle takes current by directly contacting the contact wire through a pantograph.

[0004] The uneven loss of the rigid contact wire is a problem that is centrally reflected during operation and maintenance. During the operation of the train, especially in the acceleration section, the vehicle will swing rapidly, the pantograph will vibrate, and the current between the pantograph and the catenary is very large, resulting in the softening of the contact wire due to temperature rise, which will cause the contact wire and the pantograph to wear faster, making its surface not smooth and uneven. In view of the current abnormal wear of the contact wire, in order to avoid having a negative impact on the operation of electric multiple units, at present, the method of manually grinding the contact wire is adopted to ensure its surface is smooth and relieve abnormal wear.

[0005] Since there is no special machine for grinding the rigid contact wire in the current market, pure manual grinding is generally adopted. Coarse sandpaper and fine sandpaper are used to grind along the direction of the contact wire. Its advantages are fine grinding and low consumable cost; its disadvantages are that a large amount of manpower needs to be invested, the operation intensity is very high, the grinding efficiency is not high, and there are some safety hazards. For example, the burrs generated during the daily operation of the contact wire may scratch the hands; a large amount of metal particles and dust generated during the grinding process will seriously affect physical health.

[0006] Operations that need to be carried out at night after the suspension of operation are carried out in a relatively traditional way. It is necessary to set up a ladder car in advance and have four people push it forward beside. At the same time, there are operators on the car to grind the contact wire until it is smooth and free of burrs. The whole operation is carried out in the tunnel section. At least 6 people are required in one operation group to carry out the grinding operation alternately, with a large labor intensity. There are areas for improvement in the existing technology. Summary of the Invention

[0007] The device of the present invention is provided in view of the above existing situation, and provides a rigid contact wire comprehensive inspection and grinding device, including a suspension unit suspended below the busbar for information collection and processing and a clamping unit arranged on both sides of the suspension unit for clamping and walking on the busbar. A plurality of grinding wheels for grinding the contact wire are arranged at the upper end of the suspension unit, and the plurality of grinding wheels are distributed along the length direction of the suspended contact wire. A plurality of inspection modules for detecting the contact wire are fixedly arranged at the front end of the suspension walking unit. A regulating mechanism is arranged below the grinding wheel for adjusting the center height of the grinding wheel after processing the information through the suspension unit according to the wear degree detected by the above inspection module.

[0008] Preferably, a mounting seat is fixedly arranged at the upper end of the suspension unit. The mounting seat is U-shaped, and the opening of the mounting seat faces the above contact wire. The above clamping unit is arranged on the mounting seat. Grinding motors for driving the above grinding wheels to rotate are arranged on both sides of the mounting seat. Vertical guide wheels abutted against the lower end of the above busbar are respectively arranged on both sides of the upper end of the opening.

[0009] Preferably, the grinding motor drives the above grinding wheel to rotate through a roller. The grinding wheel is sleeved on the outer circumference of the roller, and the inner diameter of the grinding wheel is larger than the outer diameter of the above roller. The outer circumference of the roller is always meshed with the inner wall of the above grinding wheel. A grinding layer is fixedly arranged on the outer circumference of the grinding wheel, and the length of the grinding layer is less than the length of the above grinding wheel. The regulating mechanism includes a base arranged below the grinding wheel. The base is fixedly arranged in the above mounting seat. A rotating seat that always presses the grinding wheel against the roller is movably arranged on the base. A worm for driving the rotating seat to rotate around the center of the above roller is arranged below the base.

[0010] Preferably, the base includes two mounting plates fixedly arranged on the above-mentioned mounting seat. The two mounting plates are arranged oppositely, and two rotating rods are rotatably arranged between the two mounting plates. The above-mentioned rotating seat includes two oppositely arranged arc-shaped plates. The center of the arc-shaped plate coincides with the center of the above-mentioned roller. The arc-shaped plate is mounted on the two rotating rods. Two connecting rods and a mounting rod are fixedly arranged between the two arc-shaped plates respectively. Driven wheels that abut against the outer wall of the above-mentioned grinding wheel are rotatably arranged at both ends of the mounting rod. The two mounting rods are located between the two connecting rods. A bottom plate is fixedly arranged between the two arc-shaped plates. The bottom plate is arc-shaped, and its center coincides with the center of the above-mentioned roller. The heights of the connecting rod, the mounting rod and the bottom plate decrease in sequence. An arc-shaped rack is fixedly arranged at the lower end of the bottom plate. The rack is always engaged with the above-mentioned worm. A limiting wheel is rotatably arranged on the mounting plate. The limiting wheel is located above the above-mentioned arc-shaped plate. The arc-shaped plate is inserted between the limiting wheel and the two rotating rods.

[0011] Preferably, buckle plates for restricting the rotation position of the arc-shaped plate are fixedly arranged at both ends of the arc-shaped plate respectively.

[0012] Preferably, two rotating frames are fixedly arranged below the base. The above-mentioned worm is rotatably arranged on the rotating frame, and a driving motor for driving the worm to rotate is arranged at one end of the worm.

[0013] Preferably, the clamping unit includes a rotating plate movably arranged on the above-mentioned mounting seat. A transverse guide wheel for abutting against the side wall of the busbar is arranged on the upper end of the rotating plate facing the busbar side. A traveling wheel for driving the suspension unit to move along the length direction of the busbar is arranged on the side of the rotating plate facing the busbar. The traveling wheel is located above the above-mentioned longitudinal guide wheel. A traveling motor for driving the above-mentioned traveling wheel to rotate is arranged on the side of the rotating plate far from the above-mentioned busbar.

[0014] Preferably, a handle for easy gripping is fixedly arranged on the rotating plate.

[0015] Preferably, baffles for buckling on the outer periphery of the above-mentioned grinding motor are fixedly arranged on both sides of the mounting seat. A pressing plate for rotating the above-mentioned rotating plate towards the busbar and pressing the transverse guide wheel against the busbar is arranged on the baffle.

[0016] Preferably, the pressing plate is in the shape of a "7". One end of the pressing plate facing the rotating plate abuts against the rotating plate, and a connecting plate is rotatably arranged at the other end of the pressing plate. The other end of the connecting plate is rotatably arranged on the baffle plate. The connecting plate is located on the side of the pressing plate away from the busbar. A locking plate is arranged below the pressing plate, and the locking plate is fixedly arranged on the baffle plate. A waist-shaped hole penetrating the pressing plate is formed on one side of the pressing plate opposite to the locking plate. The pressing plate is fixedly arranged on the locking plate through a locking pin. The locking pin penetrates the waist-shaped hole, and a certain gap is left between the waist-shaped hole and the locking plate.

[0017] Preferably, a plurality of fixing rods are fixedly arranged at the bottom of the rotating plate. The length direction of the fixing rods is perpendicular to the length direction of the busbar, and the plurality of fixing plates are uniformly arranged along the length direction of the rotating plate. Connecting seats are respectively arranged at the lower ends of the fixing rods, and air cylinders for driving the fixing rods to move to make the rotating plate move towards or away from the busbar are arranged. The connecting seats are located between the busbar and the air cylinders. An installation block extending away from the connecting seat is fixedly arranged at the upper end of the air cylinder. A first rotating block is rotatably arranged at one end of the fixing rod close to the busbar, and the other end of the first rotating block is rotatably arranged at the upper end of the connecting seat. A second rotating block is rotatably arranged at the end of the fixing rod away from the busbar, and the other end of the second rotating block is rotatably arranged at the end of the installation block away from the busbar. A third rotating block is rotatably arranged on the first rotating block, and the other end of the third rotating block is rotatably arranged on the installation block, and the end of the third rotating block rotatably arranged on the installation block is located between the first rotating block and the second rotating block.

[0018] Compared with the prior art, in the present invention, the suspension unit is erected on the busbar by the clamping unit and driven to move along the busbar. After the wear condition of the contact wire on the busbar is detected by the inspection module on the suspension unit, the height of the grinding wheel at the corresponding position is adjusted by the adjusting mechanism for grinding. Through the stepped adjustment of the heights of multiple grinding wheels for grinding, the grinding degree gradually increases, ensuring the stability of the grinding quality during the grinding process. Through automated operation, the inspection and grinding cycle is greatly shortened, the maintenance efficiency is improved, manual operation is reduced, the operation risk is reduced, and the operation safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention after installation; Figure 2 is a front view of the present invention; Figure 3 is a schematic structural diagram of the installation of the present invention; Figure 4 is a schematic structural diagram of the adjusting mechanism; Figure 5 is an exploded view of the adjusting mechanism; Figure 6 Section view at the adjusting mechanism; Figure 7 is Figure 3 enlarged view of the position A in Figure 8 Schematic structural view at the rotating plate in Embodiment 2; Figure 9 Schematic structural view at the fixed rod; Figure 10 Schematic structural view at the fixed rod when the rotating plate is opened.

[0020] Markings in the figure: 1, busbar; 2, suspension unit; 3, clamping unit; 4, grinding wheel; 5, inspection module; 6, adjusting mechanism; 7, mounting seat; 8, opening; 9, grinding motor; 10, vertical guide wheel; 11, roller; 12, abrasive layer; 13, base; 14, rotating seat; 15, worm; 16, mounting plate; 17, rotating rod; 18, arc plate; 19, connecting rod; 20, mounting rod; 21, driven wheel; 22, bottom plate; 23, rack; 24, limiting wheel; 25, buckle plate; 26, rotating frame; 27, driving motor; 28, rotating plate; 29, horizontal guide wheel; 30, traveling wheel; 31, traveling motor; 32, handle; 33, baffle; 34, locking pin; 35, pressing plate; 36, connecting plate; 37, locking plate; 38, waist-shaped hole; 39, fixed rod; 40, connecting seat; 41, cylinder; 42, mounting block; 43, first rotating block; 44, second rotating block; 45, third rotating block. Specific embodiments

[0021] The present invention will be further described below in conjunction with the embodiments shown in the drawings: Embodiment 1

[0022] As Figures 1-7A comprehensive inspection and grinding device for rigid contact lines is shown, including a suspension unit 2 suspended below the busbar 1 for information collection and processing, and clamping units 3 arranged on both sides of the suspension unit 2 for clamping and walking on the busbar 1. At the upper end of the suspension unit 2, there are multiple grinding wheels 4 for grinding the contact line. There are four grinding wheels 4, and multiple said grinding wheels 4 are distributed along the length direction of the suspended contact line. At the front end of the suspended walking unit, several inspection modules 5 for detecting the wear degree of the contact line are fixedly arranged. Below the grinding wheels 4, there is an adjustment mechanism 6 for adjusting the center height of the grinding wheels 4 after processing the information through the suspension unit 2 according to the wear degree detected by the above inspection modules 5. At the upper end of the suspension unit 2, a mounting seat 7 is fixedly arranged. The mounting seat 7 is U-shaped, and the opening 8 of the mounting seat 7 faces the above contact line. The above clamping unit 3 is arranged on the mounting seat 7. On both sides of the mounting seat 7, there are grinding motors 9 for driving the grinding wheels 4 to rotate. On both sides of the upper end of the opening 8, vertical guide wheels 10 abutted against the lower end of the above busbar 1 are respectively arranged. The suspension unit 2 is erected on the busbar 1 through the clamping unit 3 and driven to move along the busbar 1. After detecting the wear condition of the contact line on the busbar 1 through the inspection module 5 on the suspension unit 2, the height of the corresponding grinding wheel 4 is adjusted through the adjustment mechanism 6 for grinding. Through the stepped adjustment of the heights of multiple grinding wheels 4 for grinding, the grinding effect is more precise. Through automated operation, the inspection and grinding cycle is greatly shortened, the maintenance efficiency is improved, manual operation is reduced, the operation risk is reduced, and the operation safety is improved.

[0023] The grinding motor 9 drives the grinding wheel 4 to rotate through the roller 11. The grinding wheel 4 is sleeved on the outer periphery of the roller 11, and the inner diameter of the grinding wheel 4 is greater than the outer diameter of the roller 11. The outer periphery of the roller 11 is always meshed with the inner wall of the grinding wheel 4. A grinding layer 12 is fixedly arranged on the outer periphery of the grinding wheel 4, and the length of the grinding layer 12 is less than the length of the grinding wheel 4. The adjusting mechanism 6 includes a base 13 arranged below the grinding wheel 4. The base 13 is fixedly arranged in the mounting seat 7. A rotating seat 14 that always presses the grinding wheel 4 against the roller 11 is movably arranged on the base 13. A worm 15 that drives the rotating seat 14 to rotate around the center of the roller 11 is arranged below the base 13. The base 13 includes two mounting plates 16 fixedly arranged on the mounting seat 7. The two mounting plates 16 are arranged oppositely, and two rotating rods 17 are rotatably arranged between the two mounting plates 16. The rotating seat 14 includes two oppositely arranged arc-shaped plates 18. The center of the arc-shaped plate 18 coincides with the center of the roller 11. The arc-shaped plate 18 is erected on the two rotating rods 17. Two connecting rods 19 and mounting rods 20 are respectively fixedly arranged between the two arc-shaped plates 18. Driven wheels 21 that abut against the outer wall of the grinding wheel 4 are respectively rotatably arranged at both ends of the mounting rod 20. The two mounting rods 20 are located between the two connecting rods 19. An arc-shaped bottom plate 22 is fixedly arranged between the two arc-shaped plates 18. The bottom plate 22 is arc-shaped, and the center coincides with the center of the roller 11. The heights of the connecting rod 19, the mounting rod 20, and the bottom plate 22 decrease in sequence. An arc-shaped rack 23 is fixedly arranged at the lower end of the bottom plate 22. The rack 23 is always meshed with the worm 15. A limiting wheel 24 is rotatably arranged on the mounting plate 16. The limiting wheel 24 is located at the upper end of the arc-shaped plate 18. The arc-shaped plate 18 is inserted between the limiting wheel 24 and the two rotating rods 17. Clamping plates 25 that limit the rotation position of the arc-shaped plate 18 are respectively fixedly arranged at both ends of the arc-shaped plate 18. When driving the rotating seat 14 to rotate. Two rotating frames 26 are fixedly arranged below the base 13. The worm 15 is rotatably arranged on the rotating frame 26, and a driving motor 27 for driving the worm 15 to rotate is arranged at one end of the worm 15.When adjusting the grinding position, the worm 15 is driven to rotate by the driving motor 27. The rotating seat 14 is driven to rotate around the center of the roller 11 by the rack 23 that is always meshed with the worm 15. The movement paths of the two rotating rods 17 and the limiting pair of wheel arc plates 18 are limited, and the rotation angle of the arc plate 18 is further limited by the buckle plates 25 at both ends of the arc plate 18. After the rotating seat 14 rotates, the grinding wheel 4 is pressed against the roller 11 by the driven wheel 21 on the rotating seat 14. When the rotating seat 14 rotates, it drives the grinding wheel 4 to perform eccentric rotation, causing the height of the center of the grinding wheel 4 to change, thereby realizing the adjustment of the height of the grinding wheel 4. The height of the grinding wheel 4 is adjusted separately by the driving motor 27. During the actual grinding process, the heights of the four grinding wheels 4 increase in sequence, gradually increasing the grinding depth, avoiding the situation of uneven grinding due to excessive pressure during one-time grinding and forming.

[0024] The clamping unit 3 includes a rotating plate 28 movably arranged on the mounting seat 7. A transverse guide wheel 29 for abutting against the side wall of the bus bar 1 is arranged on the upper end of the rotating plate 28 facing the bus bar 1. A traveling wheel 30 for driving the suspension unit 2 to move along the length direction of the bus bar 1 is arranged on the side of the rotating plate 28 facing the bus bar 1 and is mounted on the bus bar 1. The traveling wheel 30 is located above the longitudinal guide wheel. A traveling motor 31 for driving the traveling wheel 30 to rotate is arranged on the side of the rotating plate 28 away from the bus bar 1. A handle 32 convenient for holding is fixedly arranged on the rotating plate 28. Baffles 33 for buckling around the outer periphery of the grinding motor 9 are fixedly arranged on both sides of the mounting seat 7. A pressing plate 35 for rotating the rotating plate 28 towards the bus bar 1 and pressing the transverse guide wheel 29 against the bus bar 1 is arranged on the baffle 33. The pressing plate 35 is in the shape of a "7". One end of the pressing plate 35 facing the rotating plate 28 abuts against the rotating plate 28, and a connecting plate 36 is rotatably arranged at the other end of the pressing plate 35. The other end of the connecting plate 36 is rotatably arranged on the baffle 33. The connecting plate 36 is located on the side of the pressing plate 35 away from the bus bar 1. A locking plate 37 is arranged below the pressing plate 35 and is fixedly arranged on the baffle 33. A waist-shaped hole 38 penetrating the pressing plate 35 is formed on the side of the pressing plate 35 facing the locking plate 37. The pressing plate 35 is fixedly arranged on the locking plate 37 through a locking pin 34. The locking pin 34 penetrates through the waist-shaped hole 38, and a certain gap is left between the waist-shaped hole 38 and the locking plate 37. When installing the suspension unit 2, after the vertical guide wheel 10 on the mounting seat 7 is mounted on the lower end of the bus bar 1, the rotating plate 28 is rotated towards the bus bar 1 until the transverse guide wheel 29 presses against the bus bar 1, and the pressing plate 35 is rotated towards the rotating plate 28 and abuts against the rotating plate 28. The locking pin 34 is passed through the waist-shaped hole 38 and inserted into the locking plate 37, and then the locking of the rotating plate 28 by the pressing plate 35 can be completed. It is ensured that during the traveling of the suspension unit 2, the transverse guide wheel 29 on the rotating plate 28 always presses against the bus bar 1 and drives the suspension unit 2 to travel by driving the traveling wheel 30 to rotate through the traveling motor 31. The structure is simple and safer and more reliable. Embodiment 2

[0025] The difference from Embodiment 1 is that, as Figures 8-10As shown, a plurality of fixing rods 39 are fixedly arranged at the bottom of the rotating plate 28. The length direction of the fixing rod 39 is perpendicular to the length direction of the bus bar 1, and the plurality of fixing plates are uniformly arranged along the length direction of the rotating plate 28. A connecting seat 40 and a cylinder 41 for driving the fixing rod 39 to move and making the rotating plate 28 move towards or away from the bus bar 1 are respectively arranged at the lower ends of the fixing rods 39. The connecting seat 40 is located between the bus bar 1 and the cylinder 41, and the connecting seat 40 is fixedly arranged on the mounting seat 7. The upper end of the cylinder 41 is fixedly provided with a mounting block 42 extending in a direction away from the connecting seat 40. One end of the fixing rod 39 close to the bus bar 1 is rotatably provided with a first rotating block 43, and the other end of the first rotating block 43 is rotatably arranged at the upper end of the connecting seat 40. One end of the fixing rod 39 away from the bus bar 1 is rotatably provided with a second rotating block 44, and the other end of the second rotating block 44 is rotatably arranged at the end of the mounting block 42 away from the bus bar 1. A third rotating block 45 is rotatably arranged on the first rotating block 43, and the other end of the third rotating block 45 is rotatably arranged on the mounting block 42, and the end of the third rotating block 45 rotatably arranged on the mounting block 42 is located between the first rotating block 43 and the second rotating block 44. By jacking up the mounting block 42 with the cylinder 41, the mounting block 42 moves towards the bus bar 1 and abuts against the bus bar 1. And through the five-bar linkage structure composed of the fixing rod 39, the mounting block 42, the first rotating block 43, the second rotating block 44 and the third rotating block 45, the moving path of the fixing rod 39 is an arc-shaped movement. When the fixing rod 39 moves towards the bus bar 1, while the front end of the fixing rod 39 approaches the bus bar 1, the rear end of the fixing rod 39 is gradually lifted upwards under the drive of the second rotating block 44, so that when the traveling wheels 30 on the rotating plate 28 are pressed against the bus bar 1, there is always a downward force, and at the same time, the lateral guide wheels 29 have a lateral pressing force against the side wall of the bus bar 1, and through the action of the cylinder 41 on the suspension unit 2, the suspension unit 2 has an upward force, and the vertical guide wheels 10 have an upward force and always abut against the lower part of the bus bar 1. The suspension unit 2 is integrally locked on the bus bar 1 through the cylinder 41, which is more stable and reliable.

[0026] Obviously, the above embodiments are only examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A rigid contact line comprehensive inspection and polishing device, characterized in that: The invention comprises a suspension unit (2) suspended below a bus (1) for information collection and processing, and a clamping unit (3) arranged on both sides of the suspension unit (2) for clamping and walking on the bus (1), wherein a plurality of grinding wheels (4) for grinding the contact line are arranged at the upper end of the suspension unit (2), and the plurality of grinding wheels (4) are distributed along the length direction of the suspension contact line, and a plurality of inspection modules (5) for detecting the degree of wear of the contact line are fixedly arranged at the front end of the suspension walking unit, and an adjustment mechanism (6) for adjusting the center height of the grinding wheel (4) after processing the information according to the degree of wear detected by the inspection module (5) through the suspension unit (2) is arranged below the grinding wheel (4).

2. A rigid contact line comprehensive inspection and polishing device according to claim 1, characterized in that: A mounting seat (7) is fixedly provided at the upper end of the suspension unit (2). The mounting seat (7) is U-shaped, and an opening (8) of the mounting seat (7) faces the contact line. The clamping unit (3) is arranged on the mounting seat (7). Grinding motors (9) for driving the grinding wheel (4) to rotate are arranged on both sides of the mounting seat (7). Vertical guide wheels (10) abutting against the lower end of the busbar (1) are respectively arranged on both sides of the upper end of the opening (8).

3. A rigid contact line comprehensive inspection and polishing device according to claim 2, characterized in that: The grinding motor (9) drives the grinding wheel (4) to rotate via the roller (11); the grinding wheel (4) is sleeved on the outer circumference of the roller (11); the inner diameter of the grinding wheel (4) is larger than the outer diameter of the roller (11); the outer circumference of the roller (11) is always meshed with the inner wall of the grinding wheel (4); a circle of abrasive layer (12) is fixedly provided on the outer circumference of the grinding wheel (4); the length of the abrasive layer (12) is smaller than the length of the grinding wheel (4); the adjustment mechanism (6) comprises a base (13) provided below the grinding wheel (4); the base (13) is fixedly provided in the mounting seat (7); a rotating seat (14) is movably provided on the base (13) for always pressing the grinding wheel (4) against the roller (11); a worm (15) is provided below the base (13) for driving the rotating seat (14) to rotate around the center of the roller (11) 4. A rigid contact line comprehensive inspection and polishing device according to claim 3, characterized in that: The base (13) comprises two mounting plates (16) fixedly mounted on the mounting seat (7), the two mounting plates (16) being arranged opposite to each other and two rotating rods (17) being rotatably mounted between the two mounting plates (16), the rotating seat (14) comprising two arc-shaped plates (18) being arranged opposite to each other, the center of the arc-shaped plates (18) coinciding with the center of the roller (11), the arc-shaped plates (18) being mounted on the two rotating rods (17), two connecting rods (19) and mounting rods (20) being respectively fixedly mounted between the two arc-shaped plates (18), two ends of the mounting rods (20) being rotatably mounted with driven wheels (21) abutting against the outer wall of the grinding wheel (4), the two mounting rods (20) is located between the two connecting rods (19), a bottom plate (22) is fixedly arranged between the two arc plates (18), the bottom plate (22) is arc-shaped, and the center of the circle coincides with the center of the circle of the above-mentioned roller (11), and the heights of the connecting rod (19), the mounting rod (20) and the bottom plate (22) are successively reduced, an arc-shaped rack (23) is fixedly arranged at the lower end of the bottom plate (22), and the rack (23) is always meshed with the above-mentioned worm (15), and a limiting wheel (24) is rotatably arranged on the mounting plate (16), and the limiting wheel (24) is located at the upper end of the above-mentioned arc plate (18), and the arc plate (18) is inserted between the limiting wheel (24) and the two rotating rods (17).

5. A rigid contact line comprehensive inspection and polishing device according to claim 4, characterized in that: Buckle plates (25) for limiting the rotational position of the arc-shaped plate (18) are respectively fixedly provided at both ends of the arc-shaped plate (18).

6. A rigid contact line comprehensive inspection and polishing device according to claim 3, characterized in that: Two rotating frames (26) are fixedly arranged below the base (13), the worm (15) is rotatably arranged on the rotating frames (26), and a driving motor (27) for driving the worm (15) to rotate is arranged at one end of the worm (15).

7. A rigid contact line comprehensive inspection and polishing device according to claim 2, characterized in that: The clamping unit (3) comprises a rotating plate (28) movably arranged on the mounting seat (7); a transverse guide wheel (29) for abutting against a side wall of the bus (1) is arranged on the upper end of the rotating plate (28) facing the bus (1); a walking wheel (30) mounted on the bus (1) and driving the suspension unit (2) to move along the length direction of the bus (1) is arranged on the side of the rotating plate (28) facing the bus (1); the walking wheel (30) is located above the longitudinal guide wheel; a walking motor (31) for driving the walking wheel (30) to rotate is arranged on the side of the rotating plate (28) away from the bus (1); and a handle (32) for easy gripping is fixedly arranged on the rotating plate (28).

8. A rigid contact line comprehensive inspection and polishing device according to claim 7, characterized in that: A plurality of fixing rods (39) are fixedly arranged at the bottom of the rotating plate (28), the length direction of the fixing rods (39) being perpendicular to the length direction of the bus bar (1), and the plurality of fixing plates are evenly arranged along the length direction of the rotating plate (28), the lower ends of the fixing rods (39) are respectively provided with connecting seats (40) and cylinders (41) for driving the fixing rods (39) to move the rotating plate (28) toward the bus bar (1) or away from the bus bar (1), the connecting seat (40) is located between the bus bar (1) and the cylinder (41), the upper end of the cylinder (41) is fixedly provided with a mounting block (42) extending in a direction away from the connecting seat (40), and the fixing rods (39) are close to the bus bar (1). A first rotating block (43) is rotatably provided at one end of the fixing rod (39), and the other end of the first rotating block (43) is rotatably provided at the upper end of the connecting seat (40); a second rotating block (44) is rotatably provided at one end of the fixing rod (39) away from the bus bar (1), and the other end of the second rotating block (44) is rotatably provided at one end of the mounting block (42) away from the bus bar (1); a third rotating block (45) is rotatably provided on the first rotating block (43), and the other end of the third rotating block (45) is rotatably provided on the mounting block (42), and one end of the third rotating block (45) rotatably provided on the mounting block (42) is located between the first rotating block (43) and the second rotating block (44).

9. A rigid contact line comprehensive inspection and polishing device according to claim 7, characterized in that: Baffles (33) for buckling on the outer periphery of the grinding motor (9) are fixedly provided on both sides of the mounting seat (7), and a pressing plate (35) for rotating the rotating plate (28) towards the bus bar (1) and pressing the transverse guide wheel (29) against the bus bar (1) is provided on the baffle (33).

10. A rigid contact line comprehensive inspection and polishing device according to claim 9, characterized in that: The pressing plate (35) is in a 7-shaped shape. One end of the pressing plate (35) facing the rotating plate (28) abuts against the rotating plate (28), and the other end of the pressing plate (35) is rotatably provided with a connecting plate (36). The other end of the connecting plate (36) is rotatably provided on the baffle (33). The connecting plate (36) is located on a side of the pressing plate (35) away from the bus bar (1). A locking plate (37) is provided below the pressing plate (35). The locking plate (37) is fixedly provided on the baffle (33). A waist-shaped hole (38) penetrating the pressing plate (35) is provided on a side of the pressing plate (35) facing the locking plate (37). The pressing plate (35) is fixedly provided on the locking plate (37) via a locking pin (34). The locking pin (34) penetrates the waist-shaped hole (38), and a certain gap is left between the waist-shaped hole (38) and the locking plate (37).

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