Railway Freight Train Coupler Buffer Welding and Repair Equipment

Abstract

The present invention belongs to the technical field of buffer welding repair equipment, especially a welding repair equipment for the coupler buffer of railway freight trains. Aiming at the problems in the existing welding repair process of coupler buffers, such as it is not convenient to fully clean the surface of the coupler buffer and it is not convenient to preheat the welding part, thus affecting the welding repair effect. The following scheme is now proposed. It includes a machine table; a water tank, the water tank is fixedly installed at the bottom of the machine table, four feet are fixedly installed at the bottom of the water tank, a cleaning mechanism is arranged in the water tank, and the cleaning mechanism is used for cleaning the buffer; a protective cover, the protective cover is fixedly installed on the top of the machine table, a storage battery and a box body are fixedly installed on the top of the protective cover, and a preheating mechanism is arranged in the box body. The present invention can facilitate the full cleaning of the surface of the coupler buffer during use and facilitate the preheating of the welding part, thereby effectively improving the welding repair effect and efficiency. The structure is simple and the use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of buffer welding repair equipment, and in particular to a welding repair equipment for the coupler buffer of a railway freight train. Background Art

[0002] During the transportation of railway freight trains, the coupler buffer device, as a key component connecting vehicles, bears huge traction and impact forces. Due to long-term use and wear, the welded parts in the coupler buffer device are prone to defects such as cracks and fractures, seriously affecting the operation safety and efficiency of the train. Welding repair equipment is a device used to weld and repair metal structures, components or parts. It repairs, restores or enhances the performance of metal components through welding technology and is widely used in various industrial fields.

[0003] In the prior art, during the welding repair process of the coupler buffer, it is not convenient to fully clean the surface of the coupler buffer and it is not convenient to preheat the welded part, thus affecting the welding repair effect. Therefore, we propose a welding repair equipment for the coupler buffer of a railway freight train to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages in the prior art that during the welding repair process of the coupler buffer, it is not convenient to fully clean the surface of the coupler buffer and it is not convenient to preheat the welded part, thus affecting the welding repair effect, and to propose a welding repair equipment for the coupler buffer of a railway freight train.

[0005] The welding repair equipment for the coupler buffer of a railway freight train provided in this application adopts the following technical solutions:

[0006] The welding repair equipment for the coupler buffer of a railway freight train includes:

[0007] A machine table;

[0008] A water tank, which is fixedly installed at the bottom of the machine table. Four foot pads are fixedly installed at the bottom of the water tank. A cleaning mechanism is arranged inside the water tank, and the cleaning mechanism is used to clean the buffer.

[0009] A protective cover, which is fixedly installed on the top of the machine table. A storage battery and a box body are fixedly installed on the top of the protective cover. A baking and preheating mechanism is arranged inside the box body, and the baking and preheating mechanism is used to bake and preheat the buffer.

[0010] A positioning plate, which is slidably installed on the top of the machine table. A collection groove is opened on the top of the machine table. A water outlet is opened on the bottom inner wall of the collection groove, and the water outlet is communicated with the water tank. Two symmetrical vertical plates are fixedly installed on the top inner wall of the protective cover, and a cleaning mechanism is arranged on the two vertical plates.

[0011] The left plate and the right plate are respectively slidably mounted on the inner walls of both sides of the protective cover. A through groove is formed in the left plate, and a grinding mechanism is arranged in the through groove. The grinding mechanism is used for grinding the buffer, and a welding head is fixedly mounted at the bottom of the right plate.

[0012] Further, two symmetrical guide shafts are slidably mounted on both the left plate and the right plate. The two ends of the guide shafts are respectively fixedly connected to the inner wall of the top of the protective cover and the top of the machine table. A threaded rod is rotatably mounted on the protective cover. The threaded rod is threadedly connected to the positioning plate. A second motor is fixedly mounted on the outside of the protective cover. The output shaft of the second motor is fixedly connected to the threaded rod. When the second motor is turned on, the threaded rod drives the positioning plate to move horizontally.

[0013] Further, two symmetrical chutes are formed in the top of the positioning plate. Two clamping plates are slidably mounted in the two chutes. A bidirectional lead screw is rotatably mounted on the positioning plate. The bidirectional lead screw is threadedly connected to the two clamping plates. A hand wheel is fixedly connected to the bidirectional lead screw. When the hand wheel is rotated, the bidirectional lead screw drives the two clamping plates to move towards each other.

[0014] Further, the drying and preheating mechanism includes a support plate. The support plate is fixedly mounted in the box body. A third motor is fixedly mounted on the top of the support plate. A plurality of electric heating rods are fixedly mounted in the box body. A first rotating shaft is rotatably mounted on the support plate. The first rotating shaft is fixedly connected to the output shaft of the third motor. An impeller is fixedly connected to the outside of the first rotating shaft. When the third motor is turned on, the first rotating shaft drives the impeller to rotate.

[0015] Further, a second rotating shaft is rotatably mounted on the support plate. A second sprocket and a first sprocket are respectively fixedly mounted on the outside of the second rotating shaft and the outside of the first rotating shaft. The second sprocket and the first sprocket are engaged with the same first chain. A small gear is fixedly mounted on the second rotating shaft. The small gear is engaged with a large gear. When the second rotating shaft rotates, the small gear drives the large gear to rotate.

[0016] Further, the cleaning mechanism includes a third rotating shaft. A second bevel gear and a first bevel gear are respectively fixedly mounted on the outside of the third rotating shaft and the outside of the first rotating shaft. The second bevel gear and the first bevel gear are engaged with each other. A same transmission rod is rotatably mounted on two vertical plates. A cleaning roller is fixedly connected to the transmission rod. A fourth sprocket and a third sprocket are respectively fixedly mounted on the transmission rod and the third rotating shaft. The fourth sprocket and the third sprocket are engaged with the same second chain. When the third rotating shaft rotates, the third sprocket drives the fourth sprocket to rotate through the second chain.

[0017] Further, an air inlet is formed in the top of the box body. A filter screen is fixedly mounted in the air inlet. The bottom of the box body and the top of the protective cover are rotatably mounted with a same ventilation pipe. An air outlet hood is fixedly communicated with the ventilation pipe. A large gear is fixedly mounted on the outside of the ventilation pipe.

[0018] Further, mounting grooves are formed in the top of the left side plate and the inner wall of the top of the protective cover. A first conductive column and a second conductive column are slidably mounted in the two mounting grooves respectively. Springs are fixedly connected to the first conductive column and the second conductive column. The two springs are fixedly connected to the inner walls of the two mounting grooves respectively. The water pump, the first conductive column, the second conductive column and the storage battery are connected in sequence. When the first conductive column contacts the second conductive column, the water pump can be automatically started.

[0019] Further, the cleaning mechanism includes a water pump fixedly mounted on the inner wall of the bottom of the water tank. The same connecting pipe is fixedly mounted on the water tank and the protective cover. The connecting pipe is fixedly communicated with the output port of the water pump. The connecting pipe is fixedly communicated with a spray head. A sliding port is formed in the water tank. A pull plate is slidably mounted in the sliding port. A filter plate is fixedly connected to the pull plate. When the water pump is started, the water pump can convey the water in the water tank to the spray head through the connecting pipe.

[0020] Further, the grinding mechanism includes a first motor fixedly mounted on the inner wall of the bottom of the through groove. A grinding disc is fixedly connected to the output shaft of the first motor. A first air cylinder and a second air cylinder are fixedly mounted on the top of the protective cover. The output shafts of the first air cylinder and the second air cylinder are fixedly connected to the tops of the left side plate and the right side plate respectively. When the first air cylinder and the second air cylinder are started, the first air cylinder drives the left side plate to move vertically, and the second air cylinder drives the right side plate to move vertically.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. In this solution, the coupler buffer is placed on the top of the positioning plate, and the handwheel is rotated. The handwheel drives the bidirectional lead screw to rotate, and the bidirectional lead screw drives the two clamping plates to approach each other. Thus, the two clamping plates can clamp and position the coupler buffer.

[0023] 2. In this solution, by starting the first motor, the first motor drives the grinding disc to rotate. Thus, the grinding disc can grind the coupler buffer. After grinding, the first air cylinder is started again. The first air cylinder drives the left side plate to move vertically upward. When the left side plate moves vertically upward to a certain position, the first conductive column contacts the second conductive column. Thus, the water pump can be automatically started. The water pump can convey the water in the water tank to the spray head through the connecting pipe. Thus, the spray head can wash the coupler buffer.

[0024] 3. In this solution, by starting the third motor and multiple electric heating rods, the third motor drives the first rotating shaft to rotate, and the first rotating shaft drives the impeller to rotate. The wind pressure generated by the rotation of the impeller discharges the heat generated by the multiple electric heating rods through the ventilation pipe and the air outlet cover. Thus, the water stains on the coupler buffer can be dried, and the coupler buffer can be preheated.

[0025] The present invention can facilitate the full cleaning of the surface of the coupler buffer during use and facilitate the preheating of the welding part, thereby effectively improving the welding repair effect and efficiency. The structure is simple and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic structural diagram of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0027] Figure 2 FIG. is a schematic structural diagram of a water tank of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0028] Figure 3 FIG. is a schematic structural diagram of a machine table of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0029] Figure 4 FIG. is a schematic structural diagram of a cleaning mechanism of a left side plate of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0030] Figure 5 FIG. is a schematic structural diagram of a left side plate of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0031] Figure 6 FIG. is a schematic structural diagram of a right side plate of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0032] Figure 7 FIG. is a schematic structural diagram of a positioning plate of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0033] Figure 8 FIG. is a schematic structural diagram of a drying and preheating mechanism of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0034] Figure 9 FIG. is a schematic structural diagram of the cooperation between a third sprocket and a fourth sprocket of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0035] Figure 10 FIG. is a schematic structural diagram of a cleaning mechanism of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention;

[0036] Figure 11 FIG. is of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention Figure 1 Schematic enlarged view of part A;

[0037] Figure 12 FIG. is of a welding repair device for a coupler buffer of a railway freight train proposed by the present invention Figure 5 Schematic enlarged view of part B;

[0038] Figure 13 The enlarged structural schematic diagram of part C in the Figure 8 railway freight train coupler buffer welding and repair equipment proposed by the present invention;

[0039] Figure 14 The enlarged structural schematic diagram of part D in the Figure 8 railway freight train coupler buffer welding and repair equipment proposed by the present invention;

[0040] Figure 15 The enlarged structural schematic diagram of part E in the Figure 9 railway freight train coupler buffer welding and repair equipment proposed by the present invention.

[0041] Reference numerals: 1, machine platform; 2, water tank; 3, foot pad; 4, protective cover; 5, pull plate; 6, filter plate; 7, water pump; 8, connecting pipe; 9, spray head; 10, collection tank; 11, water outlet; 12, left side plate; 13, right side plate; 14, vertical plate; 15, positioning plate; 16, storage battery; 17, box body; 18, first cylinder; 19, second cylinder; 20, guide shaft; 21, through groove; 22, first motor; 23, grinding disc; 24, welding head; 25, sliding groove; 26, clamping plate; 27, bidirectional lead screw; 28, hand wheel; 29, second motor; 30, threaded rod; 32, filter screen; 33, ventilation pipe; 34, air outlet hood; 35, electric heating rod; 36, support plate; 37, third motor; 38, first rotating shaft; 39, impeller; 40, second rotating shaft; 41, first sprocket; 42, first chain; 43, second sprocket; 44, small gear; 45, large gear; 46, first bevel gear; 47, second bevel gear; 48, third rotating shaft; 49, third sprocket; 50, second chain; 51, fourth sprocket; 52, transmission rod; 53, cleaning roller; 54, first conductive column; 55, second conductive column; 56, installation groove; 57, spring. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0043] Embodiment 1

[0044] Referring to Figures 1 - 15 , the railway freight train coupler buffer welding and repair equipment includes:

[0045] Machine platform 1;

[0046] Water tank 2, which is fixedly installed at the bottom of the machine table 1. Four feet 3 are fixedly installed at the bottom of the water tank 2. A cleaning mechanism is arranged in the water tank 2, and the cleaning mechanism is used to clean the buffer;

[0047] Protective cover 4, which is fixedly installed on the top of the machine table 1. A storage battery 16 and a box body 17 are fixedly installed on the top of the protective cover 4. A drying and preheating mechanism is arranged in the box body 17, and the drying and preheating mechanism is used to dry and preheat the buffer;

[0048] Positioning plate 15, which is slidably installed on the top of the machine table 1. A collection groove 10 is opened on the top inner wall of the machine table 1. A water outlet 11 is opened on the bottom inner wall of the collection groove 10, and the water outlet 11 communicates with the water tank 2. Two symmetric vertical plates 14 are fixedly installed on the top inner wall of the protective cover 4, and a cleaning mechanism is arranged on the two vertical plates 14;

[0049] Left side plate 12 and right side plate 13, which are respectively slidably installed on the two inner walls of the protective cover 4. A through groove 21 is opened on the left side plate 12, and a grinding mechanism is arranged in the through groove 21. The grinding mechanism is used to grind the buffer. A welding head 24 is fixedly installed at the bottom of the right side plate 13.

[0050] In this embodiment, two symmetric guide shafts 20 are slidably installed on both the left side plate 12 and the right side plate 13. The two ends of the guide shaft 20 are respectively fixedly connected with the top inner wall of the protective cover 4 and the top of the machine table 1. A threaded rod 30 is rotatably installed on the protective cover 4, and the threaded rod 30 is threadedly connected with the positioning plate 15. A second motor 29 is fixedly installed on the outside of the protective cover 4, and the output shaft of the second motor 29 is fixedly connected with the threaded rod 30. When the second motor 29 is started, the threaded rod 30 drives the positioning plate 15 to move horizontally. Two symmetric chutes 25 are opened on the top of the positioning plate 15, and two clamping plates 26 are slidably installed in the two chutes 25. A bidirectional lead screw 27 is rotatably installed on the positioning plate 15, and the bidirectional lead screw 27 is threadedly connected with the two clamping plates 26. A hand wheel 28 is fixedly connected to the bidirectional lead screw 27. When the hand wheel 28 is rotated, the bidirectional lead screw 27 drives the two clamping plates 26 to move towards each other. The grinding mechanism includes a first motor 22, which is fixedly installed on the bottom inner wall of the through groove 21. The output shaft of the first motor 22 is fixedly connected with a grinding disc 23. A first cylinder 18 and a second cylinder 19 are fixedly installed on the top of the protective cover 4. The output shafts of the first cylinder 18 and the second cylinder 19 are respectively fixedly connected with the tops of the left side plate 12 and the right side plate 13. When the first cylinder 18 and the second cylinder 19 are started, the first cylinder 18 drives the left side plate 12 to move vertically, and the second cylinder 19 drives the right side plate 13 to move vertically.

[0051] In this embodiment, the baking preheating mechanism includes a support plate 36 which is fixedly installed inside the box body 17. A third motor 37 is fixedly installed at the top of the support plate 36. A plurality of electric heating rods 35 are fixedly installed inside the box body 17. A first rotating shaft 38 is rotatably installed on the support plate 36. The first rotating shaft 38 is fixedly connected to the output shaft of the third motor 37. An impeller 39 is fixedly connected to the outer side of the first rotating shaft 38. When the third motor 37 is turned on, the first rotating shaft 38 drives the impeller 39 to rotate. A second rotating shaft 40 is rotatably installed on the support plate 36. A second sprocket 43 and a first sprocket 41 are respectively fixedly installed on the outer sides of the second rotating shaft 40 and the first rotating shaft 38. The second sprocket 43 and the first sprocket 41 are meshed with the same first chain 42. A small gear 44 is fixedly installed on the second rotating shaft 40. The small gear 44 is meshed with a large gear 45. When the second rotating shaft 40 rotates, the small gear 44 drives the large gear 45 to rotate. An air inlet is formed at the top of the box body 17. A filter screen 32 is fixedly installed inside the air inlet. The bottom of the box body 17 and the top of the protective cover 4 are rotatably installed with the same ventilation pipe 33. An air outlet cover 34 is fixedly communicated with the ventilation pipe 33. The large gear 45 is fixedly installed on the outer side of the ventilation pipe 33.

[0052] In this embodiment, the cleaning mechanism includes a third rotating shaft 48. A second bevel gear 47 and a first bevel gear 46 are respectively fixedly installed on the outer sides of the third rotating shaft 48 and the first rotating shaft 38. The second bevel gear 47 and the first bevel gear 46 are meshed with each other. The same transmission rod 52 is rotatably installed on two vertical plates 14. A cleaning roller 53 is fixedly connected to the transmission rod 52. A fourth sprocket 51 and a third sprocket 49 are respectively fixedly installed on the transmission rod 52 and the third rotating shaft 48. The fourth sprocket 51 and the third sprocket 49 are meshed with the same second chain 50. When the third rotating shaft 48 rotates, the third sprocket 49 drives the fourth sprocket 51 to rotate through the second chain 50.

[0053] In this embodiment, the cleaning mechanism includes a water pump 7 which is fixedly installed on the bottom inner wall of the water tank 2. The water tank 2 and the protective cover 4 are fixedly installed with the same connecting pipe 8. The connecting pipe 8 is fixedly communicated with the output port of the water pump 7. The connecting pipe 8 is fixedly communicated with a spray head 9. A sliding opening is formed in the water tank 2. A pull plate 5 is slidably installed inside the sliding opening. A filter plate 6 is fixedly connected to the pull plate 5. When the water pump 7 is turned on, the water pump 7 can convey the water in the water tank 2 to the spray head 9 through the connecting pipe 8. Installation grooves 56 are respectively formed at the top of the left side plate 12 and the inner wall of the top of the protective cover 4. A first conductive column 54 and a second conductive column 55 are respectively slidably installed inside the two installation grooves 56. Springs 57 are fixedly connected to both the first conductive column 54 and the second conductive column 55. The two springs 57 are respectively fixedly connected to the inner walls of the two installation grooves 56. The water pump 7, the first conductive column 54, the second conductive column 55 and the storage battery 16 are connected in sequence. When the first conductive column 54 contacts the second conductive column 55, the water pump 7 can be automatically turned on.

[0054] The implementation principle in this embodiment is as follows: When in use, place the coupler buffer on the top of the positioning plate 15, rotate the handwheel 28, the handwheel 28 drives the bidirectional lead screw 27 to rotate, the bidirectional lead screw 27 drives the two clamping plates 26 to approach each other, and then the two clamping plates 26 can clamp and position the coupler buffer. Then, turn on the second motor 29, the second motor 29 drives the threaded rod 30 to rotate, the threaded rod 30 drives the positioning plate 15 to move horizontally to the left. When the positioning plate 15 moves to a certain position, turn on the first cylinder 18, the first cylinder 18 drives the left side plate 12 to move vertically, the left side plate 12 drives the first motor 22 and the grinding disc 23 to move vertically downward. When the grinding disc 23 contacts the surface of the coupler buffer, turn on the first motor 22, the first motor 22 drives the grinding disc 23 to rotate, and then the grinding disc 23 can grind the coupler buffer. After grinding, turn on the first cylinder 18 again, the first cylinder 18 drives the left side plate 12 to move vertically upward. When the left side plate 12 moves vertically upward to a certain position, the first conductive column 54 contacts the second conductive column 55, and then the water pump 7 can be automatically turned on. The water pump 7 can transport the water in the water tank 2 to the nozzle 9 through the connecting pipe 8, and then the nozzle 9 can wash the coupler buffer. At the same time, the waste water flows back to the water tank 2 through the collection tank 10 and the drain port 11 for recycling. The filter plate 6 can intercept the impurities in the waste water. After washing, turn on the first cylinder 18 to reset the left side plate 12, and then turn on the second motor 29. The second motor 29 drives the threaded rod 30 to rotate, the threaded rod 30 drives the positioning plate 15 to move horizontally. When the positioning plate 15 moves to the middle position of the machine table 1, turn on the third motor 37 and multiple electric heating rods 35. The third motor 37 drives the first rotating shaft 38 to rotate, the first rotating shaft 38 drives the impeller 39 to rotate, and the wind pressure generated by the rotation of the impeller 39 discharges the heat generated by the multiple electric heating rods 35 through the ventilation pipe 33 and the air outlet hood 34. Then, the water stains on the coupler buffer can be dried, and the coupler buffer can be preheated. At the same time, the first rotating shaft 38 drives the first sprocket 41 to rotate, the first sprocket 41 drives the second sprocket 43 to rotate through the first chain 42, the second sprocket 43 drives the second rotating shaft 40 to rotate, the second rotating shaft 40 drives the small gear 44 to rotate, the small gear 44 drives the large gear 45 to rotate, and the large gear 45 drives the ventilation pipe 33 and the air outlet hood 34 to rotate. Then, the heat can be discharged evenly, achieving the effect of uniform drying and preheating. At the same time, the first rotating shaft 38 drives the first bevel gear 46 to rotate, the first bevel gear 46 drives the second bevel gear 47 to rotate, the second bevel gear 47 drives the third rotating shaft 48 to rotate, the third rotating shaft 48 drives the third sprocket 49 to rotate, the third sprocket 49 drives the fourth sprocket 51 to rotate through the second chain 50, the fourth sprocket 51 drives the transmission rod 52 to rotate, and the transmission rod 52 drives the cleaning roller 53 to rotate. The cleaning roller 53 can clean the surface of the coupler buffer to avoid residual debris. When the preheating is completed, turn on the second motor 29, the second motor 29 drives the threaded rod 30 to rotate,The threaded rod 30 drives the positioning plate 15 to move horizontally to the right. When the positioning plate 15 moves horizontally to the right to a certain position, the second cylinder 19 is activated. The second cylinder 19 drives the right side plate 13 to move vertically downward, and then the coupler buffer can be repaired and welded through the welding head 24.

[0055] Embodiment 2

[0056] The difference between this embodiment and Embodiment 1 is that a circulation pipe is fixedly installed in the air inlet, and the circulation pipe is fixedly communicated with the top of the protective cover 4. When the third motor 37 and multiple electric heating rods 35 are turned on, the third motor 37 drives the first rotating shaft 38 to rotate, the first rotating shaft 38 drives the impeller 39 to rotate, and the wind pressure generated by the rotation of the impeller 39 discharges the heat generated by the multiple electric heating rods 35 through the ventilation pipe 33 and the air outlet cover 34. At the same time, the waste heat at the top of the protective cover 4 can be recycled through the circulation pipe to avoid waste of resources.

[0057] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. Railway freight train coupler buffer welding and repair equipment, characterized by: include: Machine (1); A water tank (2), the water tank (2) is fixedly mounted on the bottom of the machine platform (1), four pads (3) are fixedly mounted on the bottom of the water tank (2), a cleaning mechanism is arranged inside the water tank (2), and the cleaning mechanism is used to clean the buffer; A protective cover (4), the protective cover (4) is fixedly mounted on the top of the machine platform (1), a storage battery (16) and a box (17) are fixedly mounted on the top of the protective cover (4), a drying and preheating mechanism is arranged in the box (17), and the drying and preheating mechanism is used to dry and preheat the buffer; A positioning plate (15) is slidably mounted on the top of the machine platform (1). A collecting trough (10) is provided on the top of the machine platform (1). A water outlet (11) is provided on the bottom inner wall of the collecting trough (10). The water outlet (11) is communicated with the water tank (2). Two symmetrical vertical plates (14) are fixedly mounted on the top inner wall of the protective cover (4). Cleaning mechanisms are provided on the two vertical plates (14). A left side plate (12) and a right side plate (13) are respectively slidably mounted on the inner walls of both sides of the protective cover (4); a through slot (21) is provided on the left side plate (12); a grinding mechanism is provided in the through slot (21); the grinding mechanism is used to grind the buffer; a welding head (24) is fixedly mounted on the bottom of the right side plate (13).

2. The railway freight train coupler buffer welding and repair equipment according to claim 1 is characterized in that: The grinding mechanism comprises a first motor (22), the first motor (22) is fixedly mounted on the bottom inner wall of the through groove (21), the output shaft of the first motor (22) is fixedly connected to the grinding disc (23), the top of the protective cover (4) is fixedly mounted with a first cylinder (18) and a second cylinder (19), the output shafts of the first cylinder (18) and the second cylinder (19) are fixedly connected to the top of the left side plate (12) and the top of the right side plate (13), respectively.

3. The railway freight train coupler buffer welding and repair equipment according to claim 2 is characterized in that: Two symmetrical guide shafts (20) are slidably mounted on the left side plate (12) and the right side plate (13), and the two ends of the guide shafts (20) are respectively fixedly connected to the top inner wall of the protective cover (4) and the top of the machine platform (1). A threaded rod (30) is rotatably mounted on the protective cover (4), and the threaded rod (30) is threadedly connected to the positioning plate (15). A second motor (29) is fixedly mounted on the outer side of the protective cover (4), and the output shaft of the second motor (29) is fixedly connected to the threaded rod (30).

4. The railway freight train coupler buffer welding and repair equipment according to claim 3 is characterized in that: The cleaning mechanism comprises a water pump (7), the water pump (7) being fixedly mounted on the bottom inner wall of the water tank (2), the water tank (2) and the protective cover (4) being fixedly mounted with a same connecting pipe (8), the connecting pipe (8) being fixedly connected to an output port of the water pump (7), the connecting pipe (8) being fixedly connected to a nozzle (9), a sliding opening being opened on the water tank (2), a pull plate (5) being slidably mounted in the sliding opening, and a filter plate (6) being fixedly connected to the pull plate (5).

5. The railway freight train coupler buffer welding and repair equipment according to claim 4, characterized in that: The top of the positioning plate (15) is provided with two symmetrical slide grooves (25), and clamping plates (26) are slidably mounted in the two slide grooves (25). A bidirectional screw rod (27) is rotatably mounted on the positioning plate (15), and the bidirectional screw rod (27) is threadedly connected to the two clamping plates (26). A hand wheel (28) is fixedly connected to the bidirectional screw rod (27).

6. The railway freight train coupler buffer welding and repair equipment according to claim 5, characterized in that: The top of the left side plate (12) and the top inner wall of the protective cover (4) are both provided with mounting grooves (56), and a first conductive column (54) and a second conductive column (55) are respectively slidably mounted in the two mounting grooves (56). The first conductive column (54) and the second conductive column (55) are both fixedly connected to springs (57), and the two springs (57) are respectively fixedly connected to the inner walls of the two mounting grooves (56). The water pump (7), the first conductive column (54), the second conductive column (55) and the storage battery (16) are connected in sequence.

7. The railway freight train coupler buffer welding and repair equipment according to claim 6, characterized in that: The drying and preheating mechanism comprises a support plate (36), the support plate (36) being fixedly mounted in a box body (17), a third motor (37) being fixedly mounted on the top of the support plate (36), a plurality of electric heating rods (35) being fixedly mounted in the box body (17), a first rotating shaft (38) being rotatably mounted on the support plate (36), the first rotating shaft (38) being fixedly connected to an output shaft of the third motor (37), and an impeller (39) being fixedly connected to the outer side of the first rotating shaft (38).

8. The railway freight train coupler buffer welding and repair equipment according to claim 7, characterized in that: The top of the box body (17) is provided with an air inlet, in which a filter screen (32) is fixedly installed, the bottom of the box body (17) and the top of the protective cover (4) are rotatably mounted with a ventilation pipe (33), the ventilation pipe (33) is fixedly connected to an air outlet cover (34), and a large gear (45) is fixedly installed on the outside of the ventilation pipe (33).

9. The railway freight train coupler buffer welding and repair equipment according to claim 8, characterized in that: A second rotating shaft (40) is rotatably mounted on the support plate (36); a second sprocket (43) and a first sprocket (41) are fixedly mounted on the outer side of the second rotating shaft (40) and the outer side of the first rotating shaft (38), respectively; the second sprocket (43) and the first sprocket (41) are meshed with a first chain (42); a small gear (44) is fixedly mounted on the second rotating shaft (40); and the small gear (44) is meshed with a large gear (45).

10. The railway freight train coupler buffer welding and repair equipment according to claim 9, characterized in that: The cleaning mechanism comprises a third rotating shaft (48), a second bevel gear (47) and a first bevel gear (46) are fixedly mounted on the outer sides of the third rotating shaft (48) and the first rotating shaft (38), the second bevel gear (47) and the first bevel gear (46) are meshed with each other, a common transmission rod (52) is rotatably mounted on the two vertical plates (14), a cleaning roller (53) is fixedly connected to the transmission rod (52), a fourth sprocket (51) and a third sprocket (49) are fixedly mounted on the transmission rod (52) and the third rotating shaft (48), and a common second chain (50) is meshed with the fourth sprocket (51) and the third sprocket (49).

Images