Steel structure bridge T profile surface polishing device

Abstract

The invention discloses a steel structure bridge T-shaped profile surface grinding device, and belongs to the technical field of steel structure bridge T-shaped profile surface grinding, the steel structure bridge T-shaped profile surface grinding device comprises two grinding supporting frames, and a plane grinding mechanism is arranged between the two grinding supporting frames; an adjustable conveying mechanism is arranged at the bottoms of the two polishing supporting frames. By means of the plane grinding mechanism and the adjustable conveying mechanism, the grinding requirements of bridge T-shaped profiles of different specifications can be met, in addition, the surfaces of the bridge T-shaped profiles can be automatically ground, grinding operation can be continuously and stably conducted, and the grinding device is faster and more efficient than manual operation. Compared with the prior art, the device has the advantages that the manual intervention is reduced, the longer-time operation and larger production capacity are realized, the labor cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of surface grinding of T-shaped steel structure bridges, and in particular relates to a surface grinding device for T-shaped steel structure bridges. Background Art

[0002] T-profiles in steel structure bridges are a common structural element, usually used in key locations such as supports, beams, and beam-column connections. Due to its cross-sectional shape, T-profiles can provide good load-bearing capacity at a relatively small cross-sectional size, which makes it widely used as a support or connector in bridge structures.

[0003] Currently, when grinding the surface of T-profiles of steel structure bridges, manual grinding is often used. Since the T-profiles of steel structure bridges are usually very long and in large numbers, a large amount of manpower and time are required for surface grinding, which leads to high labor costs and production costs. Traditional manual grinding may be inefficient, especially for large bridge projects, which require multiple treatments to achieve the ideal surface quality, thereby increasing construction time and costs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a surface grinding device for T-profiles of steel structure bridges.

[0005] The technical solution adopted to solve the above technical problems is: a surface grinding device for T-shaped steel structure bridges, comprising two grinding support frames, a plane grinding mechanism is arranged between the two grinding support frames, and an adjustable conveying mechanism is arranged at the bottom of the two grinding support frames; The plane grinding mechanism includes a connecting frame, both ends of the connecting frame are connected to the outer wall of the grinding support frame, the center of the connecting frame is hollowed out, a second grinding roller is arranged at the center of the connecting frame, both ends of the second grinding roller are rotatably connected with a first slider, both ends of the connecting frame are provided with a first slide groove, the first slider is located in the first slide groove, and the connecting frame limits the first slider, and a through end of the second grinding roller is fixedly connected to the first bevel gear; The adjustable conveying mechanism includes two second connecting plates, and the two second connecting plates are respectively located at the bottom of the two grinding support frames, and the second connecting plates are rotatably connected to the grinding support frame at the center of the bottom end surface of the second connecting plates, and a third gear is rotatably connected to the center of the top end surface of one of the second connecting plates, and the second gear and the fourth gear are rotatably connected to the third gear at both ends of the second connecting plates, and the second gear and the fourth gear are meshed with the third gear for transmission, the bottom surface of one end of the second connecting plate is rotatably connected to the first connecting plate, and the bottom surface of the other end of the second connecting plate is rotatably connected to the third connecting plate, and a fifth motor is installed at the bottom of the grinding support frame, and the fifth motor is rotatably connected to the grinding support frame and the second connecting plate, and the through end of the fifth motor is fixedly connected to the third gear.

[0006] Through the above technical solution, the oxide layer, rust, burrs and other uneven impurities on the surface of the T-profile can be effectively removed, making the surface smoother and more uniform, which not only improves the appearance quality, but also helps the adhesion of the coating and protective layer.

[0007] Furthermore, the first bevel gear is transmission-connected to the second bevel gear, a first transmission rod is slidingly connected through the center of the second bevel gear, the first transmission rod limits the second bevel gear, one side of the second bevel gear is rotationally connected to a fixed frame, one end of the fixed frame is fixedly connected to the first slider, the other end of the fixed frame is threadedly connected to the first threaded rod, a sliding rod is arranged between the fixed frame and the first threaded rod, and the sliding rod is slidingly connected to the fixed frame.

[0008] Furthermore, the first transmission rod is rotatably connected to the fixed frame via a bearing, two ends of the first threaded rod are rotatably connected to the inner wall of the connecting frame, two ends of the first transmission rod are rotatably connected to the inner wall of the connecting frame, two ends of the sliding rod are fixedly connected to the inner wall of the connecting frame, a third motor and a fourth motor are installed on one side of the outer wall of the connecting frame, an output end of the third motor is rotatably connected to the connecting frame, a through end of the third motor is fixedly connected to the first transmission rod, an output end of the fourth motor is rotatably connected to the connecting frame, and a through end of the fourth motor is fixedly connected to the first threaded rod.

[0009] Through the above technical solution, the surface treatment quality of each T-profile can be ensured to be consistent. They are operated through preset programs and parameters, avoiding uneven grinding or negligence caused by human factors. At the same time, it reduces dependence on manual labor, reduces manual labor intensity and physical exertion of operation.

[0010] Furthermore, a fourth slide groove is provided on the top of the polishing support frame, and second slide grooves are provided on both sides of the top of the polishing support frame. Two second sliders are arranged in the fourth slide groove, and the second sliders are slidably connected to the polishing support frame, and the polishing support frame limits the second sliders, and the first connecting plate is rotatably connected to the first gear at one end away from the second connecting plate.

[0011] Furthermore, the first gear is meshed with the second gear for transmission, the third connecting plate is rotatably connected to the top of one end away from the second connecting plate with a fifth gear, the fifth gear is transmission-connected to the fourth gear, a first annular tooth is provided on the top of the fifth gear, the first annular tooth is transmission-connected to a first tooth column, the top of the first tooth column is rotatably connected to the second fixed plate, the other end of the second fixed plate is fixedly connected to a fixed column, the fixed column is rotatably connected to the fifth gear, and the through end of the fixed column is fixedly connected to the third connecting plate.

[0012] Through the above technical solutions, production efficiency can be improved and manual operations can be reduced, while at the same time, the overall production cost can be reduced in the long run.

[0013] Furthermore, the top of the fixed column is rotatably connected to a rotating tube, the inner wall of the rotating tube is provided with a second annular tooth, the bottom end surface of the rotating tube is slidably connected to the top surface of the fifth gear, the second annular tooth is transmission-connected to a second tooth column, the second tooth column is fixedly connected to the fixed column through a second fixed plate, and the second tooth column is rotatably connected to the second fixed plate, and the bottom of the second tooth column is transmission-connected to the top of the first tooth column.

[0014] Furthermore, a second transmission rod is fixedly connected to the top surface of the rotating tube and the top surface of the first gear, and the other end of the second transmission rod is rotatably connected to the second slider, a third slide groove is opened on one side of the grinding support frame, and the second threaded rod is connected to the fourth slide groove, and a second threaded rod is rotatably connected to one side of the grinding support frame, and the second threaded rod is threadedly connected to one of the second sliders, and a synchronous belt assembly is rotatably connected to one side of the two grinding support frames, and a connecting shaft of the synchronous wheel of the synchronous belt assembly is rotatably connected to the grinding support frame, and the connecting shaft of the synchronous wheel of the synchronous belt assembly is fixedly connected to the second threaded rod at the through end, and a handle is fixedly connected to one side of one of the synchronous wheels in the synchronous belt assembly.

[0015] Through the above technical solutions, it is possible to switch seamlessly between different production batches, ensuring that the equipment is always in an efficient operating state, maximizing production capacity and profits.

[0016] Furthermore, a plurality of support plates are arranged on the top of the two grinding support frames, a plurality of rollers are rotatably connected between the support plates, a chain assembly is arranged on the bottom of the plurality of rollers, the sprockets in the chain assembly are respectively fixedly connected to the plurality of rollers, the through end of the second transmission rod is fixedly connected to the support plate, and the through end of the second transmission rod is fixedly connected to one of the sprockets in the chain assembly, and a bridge T-profile is slidably connected between the rollers on both sides.

[0017] Through the above technical solution, new settings can be quickly adjusted, thereby reducing production line downtime and adjustment time, helping to improve production efficiency and reduce production costs.

[0018] Furthermore, a plurality of first fixed plates are fixedly connected to the top surface of the support plate at the top of the roller shaft, and a rectangular structure is arranged between the plurality of first fixed plates. Two hydraulic rods are arranged at the bottom of the first fixed plates, one of the hydraulic rods is rotatably connected to the bottom of the first fixed plate, and the telescopic end of one of the hydraulic rods is rotatably connected to a connecting seat.

[0019] Furthermore, another hydraulic rod is rotatably connected to the side wall of the support plate, and the telescopic end of the other hydraulic rod is rotatably connected to the side wall of the connecting seat, a first grinding roller is rotatably connected between the two connecting seats, a first motor is installed at the connection between the telescopic end of the hydraulic rod and the side wall of the connecting seat, an output end of the first motor is rotatably connected to the connecting seat, and a through end of the first motor is fixedly connected to the first grinding roller.

[0020] Through the above technical solution, the depth and strength of grinding can be accurately controlled to minimize the cutting and loss of materials. Compared with manual operation, materials can be used more effectively, costs can be saved and waste can be reduced.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention adopts an adjustable conveying mechanism, and the staff can drive the second threaded rods on both sides to rotate simultaneously by turning the handle, so that the second sliders connected to the two grinding support frames slide in the fourth slide grooves of the grinding support frames. When the second sliders move, the third connecting plate connected to the bottom rotates, and under the linkage between the first connecting plate, the second connecting plate and the third connecting plate, the two second sliders inside the grinding support frame can move towards each other, which can adapt to the sizes of bridge T-profiles of different specifications and can be adjusted according to T-profiles of different sizes and shapes to ensure that each material can pass the grinding process smoothly; (2) The present invention adopts a plane grinding mechanism. When the bridge T-shaped material is moving, the third motor and the fourth motor on one side of the connecting frame are operated, so that the second grinding roller can move horizontally and rotate at the same time to grind the plane of the bridge T-shaped material. By making the fourth motor rotate forward and reverse, the second grinding roller can move back and forth horizontally, so that the bridge T-shaped material can be automatically ground when it moves. When the bridge T-profile is moving, the rotation of the first motor drives the first grinding roller to rotate. At the same time, the two hydraulic rods work in coordination to make the first grinding roller move along the L-shaped surface of the bridge T-profile, so that the first grinding roller moves along an L-shaped trajectory for grinding. The outer surface of the bridge T-profile can be automatically polished, which is faster and more consistent than manual operation. The grinding operation can be performed continuously, reducing the need for manual intervention, thereby improving production efficiency and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle; Figure 2 is a schematic diagram of the structure of the present invention from a second viewing angle; Figure 3 It is a third perspective structural schematic diagram of the present invention; Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at B; Figure 5 is a schematic diagram of the structure from a fourth viewing angle of the present invention; Figure 6 It is a schematic diagram of the side view structure of the plane grinding mechanism of the present invention; Figure 7 It is a schematic diagram of the internal structure of the plane grinding mechanism of the present invention; Figure 8 yes Figure 7 A schematic diagram of the structure at D of FIG. Fig. 9 yes Figure 5 A schematic diagram of the enlarged structure at point A; Fig.10 It is a schematic diagram of the local structure of the polishing support frame of the present invention; Fig.11 yes Fig.10 A schematic diagram of the enlarged structure at C; Fig.12 It is a schematic structural diagram of the connection between the fifth gear and the rotating tube of the present invention; Fig.13 yes Fig.12 First-person exploded view; Fig.14 yes Fig.12 Second perspective exploded view.

[0023] Figure numerals: 1, grinding support frame; 2, plane grinding mechanism; 3, adjustable conveying mechanism; 4, bridge T-shaped material; 5, support plate; 6, roller shaft; 7, first fixed plate; 8, connecting seat; 9, hydraulic rod; 10, first motor; 11, chain assembly; 12, first grinding roller; 21, connecting frame; 22, first slide; 23, second grinding roller; 24, third motor; 25, fourth motor; 26, first threaded rod; 27, slide rod; 28, first transmission rod; 29, first slide block; 210, first bevel gear; 211, second bevel gear; 212, fixed frame; 31, fifth motor; 32. First gear; 33. Second gear; 34. Third gear; 35. Fourth gear; 36. Fifth gear; 37. First connecting plate; 38. Second connecting plate; 39. Third connecting plate; 310. Second transmission rod; 311. Second slide groove; 312. Second threaded rod; 313. Rotating tube; 314. First annular meshing teeth; 315. First tooth column; 316. Second fixed plate; 317. Second tooth column; 318. Second annular meshing teeth; 319. Fixed column; 320. Second slider; 321. Third slide groove; 322. Fourth slide groove; 323. Synchronous belt assembly; 324. Handle. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] like Figure 1-Figure 5As shown, a surface grinding device for a T-shaped steel structure bridge of the present embodiment comprises two grinding support frames 1, a plurality of support plates 5 are arranged on the top of the two grinding support frames 1, a plurality of roller shafts 6 are rotatably connected between the plurality of support plates 5, a plurality of first fixed plates 7 are fixedly connected to the top surface of the support plate 5 on the top of the roller shaft 6, a plurality of first fixed plates 7 are arranged in a rectangular structure, two hydraulic rods 9 are arranged at the bottom of the first fixed plates 7, another hydraulic rod 9 is rotatably connected to the side wall of the support plate 5, and the telescopic end of the other hydraulic rod 9 is rotatably connected to the side wall of the connecting seat 8, a first grinding roller 12 is rotatably connected between the two connecting seats 8, a first motor 10 is installed at the connection between the telescopic end of the hydraulic rod 9 and the side wall of the connecting seat 8, the output end of the first motor 10 is rotatably connected to the connecting seat 8, and the through end of the first motor 10 is rotatably connected to the first grinding roller 12 fixed connection, can effectively remove the oxide layer, rust, burr and other uneven impurities on the surface of the T-profile, making its surface smoother and more uniform, not only improving the appearance quality, but also contributing to the adhesion of the coating and protective layer, one of the hydraulic rods 9 is rotatably connected to the bottom of the first fixed plate 7, and the telescopic end of one of the hydraulic rods 9 is rotatably connected to the connecting seat 8, a chain assembly 11 is arranged at the bottom of several rollers 6, the sprockets in the chain assembly 11 are respectively fixedly connected to several rollers 6, the through end of the second transmission rod 310 is through-fixedly connected to the support plate 5, and the through end of the second transmission rod 310 is fixedly connected to one of the sprockets in the chain assembly 11, a bridge T-profile 4 is slidably connected between the rollers 6 on both sides, a plane grinding mechanism 2 is arranged between the two grinding support frames 1, and an adjustable conveying mechanism 3 is arranged at the bottom of the two grinding support frames 1; like Figure 6-Figure 8As shown, the plane grinding mechanism 2 includes a connecting frame 21, both ends of the connecting frame 21 are connected to the outer wall of the grinding support frame 1, the center of the connecting frame 21 is hollowed out, a second grinding roller 23 is arranged at the center of the connecting frame 21, both ends of the second grinding roller 23 are rotatably connected with a first slider 29, first slide grooves 22 are opened in both ends of the connecting frame 21, the first slider 29 is located in the first slide groove 22, and the connecting frame 21 limits the first slider 29, one end of the second grinding roller 23 is fixedly connected to the first bevel gear 210, and the first bevel gear The wheel 210 is transmission-connected with the second bevel gear 211, and the center of the second bevel gear 211 is slidably connected with the first transmission rod 28, and the first transmission rod 28 is rotationally connected with the fixed frame 212 through a bearing, and the two ends of the first threaded rod 26 are rotationally connected with the inner wall of the connecting frame 21, and the two ends of the first transmission rod 28 are rotationally connected with the inner wall of the connecting frame 21, and the two ends of the sliding rod 27 are fixedly connected with the inner wall of the connecting frame 21, which can ensure that the surface treatment quality of each T-profile is consistent. They are operated through preset programs and parameters to avoid human factors. The uneven grinding or negligence caused by this can be avoided. At the same time, the dependence on manual labor is reduced, and the intensity of manual labor and the physical exertion of operation are reduced. A third motor 24 and a fourth motor 25 are installed on one side of the outer wall of the connecting frame 21. The output end of the third motor 24 is connected to the connecting frame 21 through rotation. The through end of the third motor 24 is fixedly connected to the first transmission rod 28. The output end of the fourth motor 25 is connected to the connecting frame 21 through rotation. The through end of the fourth motor 25 is fixedly connected to the first threaded rod 26. The first transmission rod 28 limits the second bevel gear 211. One side of the second bevel gear 211 is connected to the fixed frame 212 through rotation. The grinding depth and strength can be accurately controlled to minimize the cutting and loss of materials. Compared with manual operation, materials can be used more effectively, costs can be saved and waste can be reduced. One end of the fixed frame 212 is fixedly connected to the first slider 29, and the other end of the fixed frame 212 is connected to the first threaded rod 26 through threading. A slide bar 27 is provided between the fixed frame 212 and the first threaded rod 26, and the slide bar 27 is connected to the fixed frame 212 through sliding. like Figure 9-Figure 14As shown, the adjustable conveying mechanism 3 includes two second connecting plates 38, and the two second connecting plates 38 are respectively located at the bottom of the two grinding support frames 1. The center of the bottom end surface of the second connecting plate 38 is rotatably connected to the grinding support frame 1. A fourth slide groove 322 is provided on the top of the grinding support frame 1, and second slide grooves 311 are provided on both sides of the top of the grinding support frame 1. Two second sliders 320 are arranged in the fourth slide groove 322. The second slider 320 is slidably connected to the grinding support frame 1, and the grinding support frame 1 limits the second slider 320. The end of the first connecting plate 37 away from the second connecting plate 38 is rotatably connected to the first gear 32, which can improve production efficiency and reduce manual operation. At the same time, the overall production cost can be reduced in the long run. The first gear 32 and the second The gear 33 is meshed for transmission. The top of one end of the third connecting plate 39 away from the second connecting plate 38 is rotatably connected to the fifth gear 36. The fifth gear 36 is transmission-connected to the fourth gear 35. A first annular meshing tooth 314 is provided on the top of the fifth gear 36. The first annular meshing tooth 314 is transmission-connected to the first tooth column 315. The top of the first tooth column 315 is rotatably connected to the second fixed plate 316. The other end of the second fixed plate 316 is fixedly connected to a fixed column 319. The top of the fixed column 319 is rotatably connected to a rotating tube 313. The top surface of the rotating tube 313 and the top surface of the first gear 32 are fixedly connected to a second transmission rod 310. The other end of the second transmission rod 310 is rotatably connected to the second slider 320. A third slide groove 321 is provided on one side of the polishing support frame 1. The second threaded rod 312 is connected with the fourth slide groove 322, and the second threaded rod 312 is rotatably connected to one side of the grinding support frame 1. The second threaded rod 312 is threadedly connected to one of the second sliders 320. One side of the two grinding support frames 1 is rotatably connected with a synchronous belt assembly 323. The connecting shaft of the synchronous wheel of the synchronous belt assembly 323 is rotatably connected to the grinding support frame 1. The connecting shaft through-end of the synchronous wheel of the synchronous belt assembly 323 is fixedly connected to the second threaded rod 312, and can seamlessly switch between different production batches to ensure that the equipment is always in an efficient operation state, maximizing production capacity and profit. One side of one of the synchronous wheels in the synchronous belt assembly 323 is fixedly connected with a handle 324, and the inner wall of the rotating tube 313 is provided with a second annular meshing The tooth 318, the bottom surface of the rotating tube 313 is slidably connected with the top surface of the fifth gear 36, the second annular meshing tooth 318 is transmission-connected with the second tooth column 317, the second tooth column 317 is fixedly connected with the fixing column 319 through the second fixing plate 316, and the second tooth column 317 is rotationally connected with the second fixing plate 316, the bottom of the second tooth column 317 is transmission-connected with the top of the first tooth column 315, the fixing column 319 is through-connected with the fifth gear 36 for rotation, and the through end of the fixing column 319 is fixedly connected with the third connecting plate 39, which can be quickly adjusted to a new setting, thereby reducing the time of production line downtime and adjustment, helping to improve production efficiency and reduce production costs, one of the second connecting plates 38 The top surface center is rotationally connected with the third gear 34,The second connecting plate 38 is rotatably connected with the second gear 33 and the fourth gear 35 at both ends, and the second gear 33 and the fourth gear 35 are meshed with the third gear 34 for transmission. The bottom surface of one end of the second connecting plate 38 is rotatably connected with the first connecting plate 37, and the bottom surface of the other end of the second connecting plate 38 is rotatably connected with the third connecting plate 39. The bottom of the grinding support frame 1 is installed with the fifth motor 31, which is rotatably connected with the grinding support frame 1 and the second connecting plate 38, and the through end of the fifth motor 31 is fixedly connected with the third gear 34.

[0026] The working principle of this embodiment is as follows: according to different specifications of the bridge T-profile 4, the staff can drive the second threaded rods 312 on both sides to rotate at the same time by turning the handle 324 under the action of the synchronous belt assembly 323, so that the second sliders 320 connected to them in the two grinding support frames 1 slide in the fourth slide groove 322 of the grinding support frame 1, and when the second sliders 320 move, the third connecting plate 39 connected to the bottom rotates, and under the linkage between the first connecting plate 37, the second connecting plate 38 and the third connecting plate 39, the two second sliders 320 inside the grinding support frame 1 can move towards each other, so as to adapt to the sizes of bridge T-profiles 4 of different specifications; After that, the fifth motor 31 runs and drives the third gear 34 to rotate, thereby driving the second gear 33 and the third connecting plate 39 on both sides to rotate synchronously, and the rotation of the second gear 33 drives the first gear 32 to rotate. At this time, the first gear 32 and the third gear 34 have the same rotation direction, and the fifth gear 36 and the third gear 34 have the same rotation direction, and the fourth gear 35 rotates and drives the fifth gear 36 to rotate. Under the action of the first annular meshing teeth 314, the first tooth column 315 rotates, thereby causing the second tooth column 317 to rotate. Under the action of the second annular meshing teeth 318, the rotating tube 313 rotates synchronously. At this time, the rotation direction of the rotating tube 313 is opposite to that of the fifth gear 36, so that the rotation directions of the two second transmission rods 310 are opposite. When the bridge T-shaped material 4 is placed between the two side rollers 6 on the top of the grinding support frame 1, with the cooperation of the chain assembly 11, the rollers 6 on both sides rotate in opposite directions, so that the bridge T-shaped material 4 is transported forward; When the bridge T-shaped material 4 is moving, the third motor 24 and the fourth motor 25 on one side of the connecting frame 21 are running, and the fourth motor 25 drives the first threaded rod 26 to rotate, so that the fixing frame 212 moves along the linear direction of the first threaded rod 26, and the third motor 24 drives the second bevel gear 211 to rotate, and at the same time, the first bevel gear 210 on one side rotates synchronously, so that the second grinding roller 23 moves horizontally and rotates at the same time, and the plane of the bridge T-shaped material 4 is ground. By making the fourth motor 25 rotate forward and reverse, the second grinding roller 23 can move back and forth horizontally, and automatic grinding of the bridge T-shaped material 4 is realized when it moves; When the bridge T-profile 4 is moving, the first motor 10 rotates to drive the first grinding roller 12 to rotate. At the same time, the two hydraulic rods 9 cooperate to operate so that the first grinding roller 12 moves along the L-shaped surface of the bridge T-profile 4, thereby making the first grinding roller 12 move in an L-shaped trajectory for grinding.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A surface grinding device for a T-shaped steel structure bridge, comprising two grinding support frames (1), characterized in that: A plane grinding mechanism (2) is arranged between the two grinding support frames (1), and an adjustable conveying mechanism (3) is arranged at the bottom of the two grinding support frames (1); The plane grinding mechanism (2) comprises a connecting frame (21), the two ends of the connecting frame (21) are connected to the outer wall of the grinding support frame (1), the center of the connecting frame (21) is in a hollow state, a second grinding roller (23) is arranged at the center of the connecting frame (21), the two ends of the second grinding roller (23) are rotatably connected to a first slider (29), the two ends of the connecting frame (21) are provided with a first slide groove (22), the first slider (29) is located in the first slide groove (22), and the connecting frame (21) limits the first slider (29), and a through end of the second grinding roller (23) is fixedly connected to the first bevel gear (210); The adjustable conveying mechanism (3) comprises two second connecting plates (38), the two second connecting plates (38) are respectively located at the bottom of the two grinding support frames (1), the center of the bottom surface of the second connecting plates (38) is rotatably connected to the grinding support frame (1), the center of the top surface of one of the second connecting plates (38) is rotatably connected to a third gear (34), the second connecting plates (38) are rotatably connected to the second gear (33) and the fourth gear (35) at both ends, the second gear (33) and the fourth gear (35) are meshed with the third gear (34) for transmission, the bottom surface of one end of the second connecting plate (38) is rotatably connected to the first connecting plate (37), and the bottom surface of the other end of the second connecting plate (38) is rotatably connected to the third connecting plate (39), and a fifth motor (31) is installed at the bottom of the grinding support frame (1), the fifth motor (31) is rotatably connected to the grinding support frame (1) and the second connecting plates (38), and the through end of the fifth motor (31) is fixedly connected to the third gear (34).

2. A surface grinding device for T-shaped steel structure bridges according to claim 1, characterized in that: The first bevel gear (210) is transmission-connected to the second bevel gear (211); a first transmission rod (28) is slidably connected to the center of the second bevel gear (211); the first transmission rod (28) limits the position of the second bevel gear (211); a fixing frame (212) is rotationally connected to one side of the second bevel gear (211); one end of the fixing frame (212) is fixedly connected to the first sliding block (29); the other end of the fixing frame (212) is threadedly connected to the first threaded rod (26); a sliding rod (27) is provided between the fixing frame (212) and the first threaded rod (26); the sliding rod (27) is slidably connected to the fixing frame (212).

3. The surface grinding device for T-shaped steel structure bridge according to claim 2 is characterized in that: The first transmission rod (28) is rotatably connected to the fixed frame (212) via a bearing, two ends of the first threaded rod (26) are rotatably connected to the inner wall of the connecting frame (21), two ends of the first transmission rod (28) are rotatably connected to the inner wall of the connecting frame (21), two ends of the sliding rod (27) are fixedly connected to the inner wall of the connecting frame (21), and a third motor (24) and a fourth motor (25) are mounted on one side of the outer wall of the connecting frame (21), an output end of the third motor (24) is rotatably connected to the connecting frame (21), a through end of the third motor (24) is fixedly connected to the first transmission rod (28), an output end of the fourth motor (25) is rotatably connected to the connecting frame (21), and a through end of the fourth motor (25) is fixedly connected to the first threaded rod (26).

4. The surface grinding device for T-shaped steel structure bridge according to claim 1 is characterized in that: A fourth slide groove (322) is provided on the top of the polishing support frame (1), and second slide grooves (311) are provided on both sides of the top of the polishing support frame (1). Two second sliders (320) are provided in the fourth slide groove (322), and the second sliders (320) are slidably connected to the polishing support frame (1), and the polishing support frame (1) limits the second sliders (320), and one end of the first connecting plate (37) away from the second connecting plate (38) is rotatably connected to the first gear (32).

5. The surface grinding device for T-shaped steel structure bridge according to claim 4 is characterized in that: The first gear (32) is meshed with the second gear (33) for transmission; the top of one end of the third connecting plate (39) away from the second connecting plate (38) is rotatably connected to a fifth gear (36); the fifth gear (36) is transmission-connected to a fourth gear (35); a first annular meshing tooth (314) is provided on the top of the fifth gear (36); the first annular meshing tooth (314) is transmission-connected to a first tooth column (315); the top of the first tooth column (315) is rotatably connected to a second fixed plate (316); the other end of the second fixed plate (316) is fixedly connected to a fixed column (319); the fixed column (319) is rotatably connected to the fifth gear (36); and the through end of the fixed column (319) is fixedly connected to the third connecting plate (39).

6. The surface grinding device for T-shaped steel structure bridge according to claim 5, characterized in that: The top end of the fixed column (319) is rotatably connected to a rotating tube (313); the inner wall of the rotating tube (313) is provided with a second annular tooth (318); the bottom end surface of the rotating tube (313) is slidably connected to the top end surface of the fifth gear (36); the second annular tooth (318) is transmission-connected to a second tooth column (317); the second tooth column (317) is fixedly connected to the fixed column (319) via a second fixed plate (316); the second tooth column (317) is rotatably connected to the second fixed plate (316); and the bottom of the second tooth column (317) is transmission-connected to the top of the first tooth column (315).

7. The surface grinding device for T-shaped steel structure bridge according to claim 6, characterized in that: The top surface of the rotating tube (313) and the top surface of the first gear (32) are fixedly connected with a second transmission rod (310), and the other end of the second transmission rod (310) is rotatably connected to the second slider (320). A third slide groove (321) is provided on one side of the grinding support frame (1), and the second threaded rod (312) is connected to the fourth slide groove (322). The second threaded rod (312) is rotatably connected to one side of the grinding support frame (1), and the second threaded rod (312) is threadably connected to one of the second sliders (320). A synchronous belt assembly (323) is rotatably connected to one side of the two grinding support frames (1), and a connecting shaft of a synchronous wheel of the synchronous belt assembly (323) is rotatably connected to the grinding support frame (1). The connecting shaft end of the synchronous wheel of the synchronous belt assembly (323) is fixedly connected to the second threaded rod (312), and a handle (324) is fixedly connected to one side of one of the synchronous wheels in the synchronous belt assembly (323).

8. The surface grinding device for T-shaped steel structure bridge according to claim 7, characterized in that: A plurality of support plates (5) are arranged on the top of the two grinding support frames (1), a plurality of roller shafts (6) are rotatably connected between the plurality of support plates (5), a chain assembly (11) is arranged at the bottom of the plurality of roller shafts (6), sprocket wheels in the chain assembly (11) are respectively fixedly connected to the plurality of roller shafts (6), a through end of the second transmission rod (310) is through-fixedly connected to the support plate (5), and a through end of the second transmission rod (310) is fixedly connected to one of the sprocket wheels in the chain assembly (11), and a bridge T-shaped material (4) is slidably connected between the roller shafts (6) on both sides.

9. The surface grinding device for T-shaped steel structure bridge according to claim 8, characterized in that: A plurality of first fixing plates (7) are fixedly connected to the top surface of the support plate (5) at the top of the roller shaft (6), and the plurality of first fixing plates (7) are arranged in a rectangular structure. Two hydraulic rods (9) are arranged at the bottom of the first fixing plate (7), one of the hydraulic rods (9) is rotatably connected to the bottom of the first fixing plate (7), and the telescopic end of one of the hydraulic rods (9) is rotatably connected to a connecting seat (8).

10. A surface grinding device for T-shaped steel structure bridges according to claim 9, characterized in that: Another hydraulic rod (9) is rotatably connected to the side wall of the support plate (5), and the telescopic end of the other hydraulic rod (9) is rotatably connected to the side wall of the connecting seat (8), a first grinding roller (12) is rotatably connected between the two connecting seats (8), a first motor (10) is installed at the connection between the telescopic end of the hydraulic rod (9) and the side wall of the connecting seat (8), an output end of the first motor (10) is rotatably connected to the connecting seat (8), and a through end of the first motor (10) is fixedly connected to the first grinding roller (12).

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