Steel rail welding equipment

Abstract

The steel rail welding equipment comprises a support, a flash welding machine, a transverse deviation rectifying assembly and a longitudinal deviation rectifying assembly, the transverse deviation rectifying assembly comprises a plurality of threaded rods, the threaded rods are distributed on the two sides of the flash welding machine, and threads on the surfaces of the threaded rods are symmetrical along the center line and are connected with two moving blocks symmetrical along the center line; the longitudinal deviation rectifying assembly comprises supporting seats, the supporting seats are symmetrically arranged on the two sides of the flash welding machine, each set of supporting seats is composed of two supporting seats, a first lifting block is arranged on the top of each supporting seat, and a guide rod is fixedly connected to the bottom of each first lifting block. The guide rods are slidably connected into the supporting seats, springs are fixedly connected between the guide rods and the inner side walls of the supporting seats, first deviation rectifying rollers are rotationally connected between each set of supporting seats and between each set of first lifting blocks, and the multiple first deviation rectifying rollers are arranged in parallel. Therefore, the steel rail butt joint precision can be effectively improved, the unevenness condition of the welding position is reduced, and stable and safe train operation is effectively guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of rail welding, and particularly to a rail welding device. Background Art

[0002] Rail is the main component of railway tracks. In the field of rail transit, it mainly functions to guide the train operation. It provides precise guidance for the wheels of locomotives and vehicles, ensures that the train runs along the predetermined track, guarantees the safety and accuracy of railway transportation, and also plays a role in bearing loads. The surface of the rail provides a smooth rolling surface for the wheels, reduces the frictional resistance, improves the operation efficiency and comfort of the train. During the production and construction of rails, it is often necessary to weld them into longer units, such as 500-meter-long rails, in the factory for subsequent transportation to the site for laying.

[0003] In the related art, the commonly used rail welding method is flash welding. This welding method uses the resistance heat generated by the current passing through the butt joint surface of the rail to heat the end of the rail to the plastic state, and then applies upsetting force to complete the welding. However, during the welding process, due to the lack of a rail position adjustment device, the situation of misaligned rail butts frequently occurs, resulting in unevenness at the rail welding joint. When the train runs, it will cause bumps and shakes, which not only reduces the comfort of passengers but also increases the risk of train derailment. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems in the related art to some extent.

[0005] For this reason, an object of this application is to provide a rail welding device, which can effectively improve the butt joint accuracy of the rail, reduce the unevenness at the welding joint, and thus effectively ensure the smooth and safe operation of the train.

[0006] To achieve the above object, an embodiment of the first aspect of this application provides a rail welding device, including a support, a flash welding machine, a lateral deviation correction component, and a longitudinal deviation correction component. Among them, the flash welding machine, the lateral deviation correction component, and the longitudinal deviation correction component are respectively arranged on the support; the lateral deviation correction component includes a plurality of threaded rods, the threaded rods are distributed on both sides of the flash welding machine and are located inside the support. The threads on the surface of the threaded rod are symmetric along the center line, and two symmetrically arranged moving blocks along the center line are threadedly connected. The top of the moving block is fixedly connected with a support frame, and a second deviation correction roller is rotatably connected to the support frame; the longitudinal deviation correction component includes a support seat, the support seats are symmetrically arranged on both sides of the flash welding machine, each group of support seats consists of two, a first lifting block is provided at the top of each support seat, a guide rod is fixedly connected to the bottom of the first lifting block, the guide rod is slidably connected inside the support seat and a spring is fixedly connected between the guide rod and the inner side wall of the support seat. A first deviation correction roller is rotatably connected between each group of support seats and between each group of first lifting blocks, and the plurality of first deviation correction rollers are arranged in parallel.

[0007] The rail welding equipment according to the embodiments of the present application can effectively improve the butt joint accuracy of rails, reduce the unevenness at the welding part, and thus effectively ensure the smooth and safe operation of trains.

[0008] In addition, the rail welding equipment proposed above according to the present application may further have the following additional technical features:

[0009] In an embodiment of the present application, a splash guard is fixedly connected to the top of the support, a push block is slidably connected inside the support, a push rod is slidably connected inside the splash guard, the push block and the push rod are arranged oppositely, guide grooves are fixedly connected to both side walls of the splash guard, sliders driven by electric wheels are slidably connected inside the guide grooves, the push rod is slidably connected inside the sliders, the push block and the push rod are driven to slide by an electric push rod, grinding saw blades driven by motors are installed inside both of them, a dust blocking curtain is fixedly connected inside the splash guard, and a weight block is fixedly connected inside the dust blocking curtain near the bottom end.

[0010] In an embodiment of the present application, a water collecting tank is arranged inside the support on the side away from the flash welder of the splash guard, a spray pipe is fixedly connected inside the support, and a plurality of spray heads located above the water collecting tank are installed on the side wall of the spray pipe.

[0011] In an embodiment of the present application, two parallel and symmetric second lifting blocks are arranged on the top of the support, a conveyor belt is installed between them, the rotation direction of the conveyor belt is the same as that of the first deviation rectifying roller, a plurality of anti-deviation rods are fixedly connected to the top of the support, and the second lifting blocks are slidably connected to the anti-deviation rods and driven to lift by an electric push rod.

[0012] In an embodiment of the present application, a sliding groove is arranged inside the support on the side away from the flash welder of the second lifting block, a sliding block is slidably connected inside the sliding groove, an adjusting screw rod is threadedly connected inside the sliding block, a hexagonal head is fixedly connected to the side wall of the adjusting screw rod, and a bracket is rotatably connected to the top.

[0013] In an embodiment of the present application, an anti-slip gasket is fixedly connected to the top of the bracket.

[0014] In an embodiment of the present application, a positioning block is fixedly connected to the side wall of the threaded rod, and the positioning block is rotatably connected inside the support.

[0015] In an embodiment of the present application, a plurality of anti-wear balls are arranged between the support and the positioning block, and the side walls of the anti-wear balls are in contact with the side walls of the support and the positioning block.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] 1. The rail welding equipment of the present application has a structural design that simultaneously adjusts the position of the rail through a lateral deviation correction component and a longitudinal deviation correction component, achieving a situation where the rail is less likely to tilt during welding, resulting in an uneven welding joint of the rail. This effectively solves the problem that when welding rails in a factory, the rails are prone to being misaligned, and the uneven welding joint of the rail will cause bumps and vibrations when the train is running.

[0018] 2. When the rail welding equipment of the present application conveys and welds the rail, the first deviation correction rollers on both sides of the flash welding machine will clamp the rail, and then support the rail. This structural design realizes that the rail is less likely to deform during welding, making the welding effect of the rail better. At the same time, by pushing the guide rod with a spring, the first deviation correction roller at the top can squeeze and fix the rail, so that the rail is less likely to displace during welding.

[0019] Additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. Brief Description of the Drawings

[0020] The above-mentioned and / or additional aspects and advantages of the present application will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0021] Figure 1 is a schematic structural diagram of a rail welding equipment according to an embodiment of the present application;

[0022] Figure 2 is a partial structural diagram of a support according to an embodiment of the present application;

[0023] Figure 3 is a partial structural diagram of a moving block according to an embodiment of the present application;

[0024] Figure 4 is a cross-sectional view of a moving block according to an embodiment of the present application;

[0025] Figure 5 is a cross-sectional view of a splash guard according to an embodiment of the present application;

[0026] Figure 6 is a partial structural diagram of a conveyor belt according to an embodiment of the present application;

[0027] Figure 7 is a cross-sectional view of a sliding block according to an embodiment of the present application;

[0028] Figure 8 is Figure 3 a partial enlarged view of part A in

[0029] As shown in the figure: 1. Support; 2. Flash welding machine; 3. Support base; 4. First lifting block; 5. Guide rod; 6. First deviation rectifying roller; 7. Threaded rod; 8. Moving block; 9. Support frame; 10. Second deviation rectifying roller; 11. Splash guard; 12. Pushing block; 13. Pushing rod; 14. Grinding saw blade; 15. Guide groove; 16. Slide block; 17. Dust-proof curtain; 18. Counterweight block; 19. Spraying pipe; 20. Water collecting tank; 21. Second lifting block; 22. Conveyor belt; 23. Deviation prevention rod; 24. Sliding groove; 25. Sliding block; 26. Adjusting screw; 27. Hexagonal head; 28. Bracket; 29. Anti-slip gasket; 30. Positioning block; 31. Anti-wear ball. Specific implementation manners

[0030] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0031] The rail welding equipment of the embodiments of the present application will be described below with reference to the accompanying drawings.

[0032] The rail welding equipment provided by the embodiments of the present application can be applied in the technical field of rail welding and is used for the production welding of train rails.

[0033] As Figures 1 to 4 shown, the rail welding equipment of the embodiments of the present application may include a support 1. A flash welding machine 2 is installed on the top of the support 1. A lateral deviation rectifying assembly and a longitudinal deviation rectifying assembly are provided on the top of the support 1. The lateral deviation rectifying assembly includes a threaded rod 7. A plurality of threaded rods 7 are provided inside the support 1, and the threaded rods 7 are distributed on both sides of the flash welding machine 2. The threads on the surface of the threaded rod 7 are symmetrically arranged along the center line of the threaded rod 7, and two moving blocks 8 are threadedly connected to the threaded rod 7. The two moving blocks 8 are symmetrically arranged on the threaded rod 7 along the center line of the threaded rod 7. A support frame 9 is fixedly connected to the top of the moving block 8, and a second deviation rectifying roller 10 is rotatably connected to the support frame 9.

[0034] Specifically, when welding the rail is required, the rail can be placed at the position between the two sets of second alignment rollers 10 on the top of the support 1. After that, the threaded rod 7 can be controlled to rotate, so that the threaded rod 7 drives the two moving blocks 8 to approach or move away from each other, thereby controlling the position of the second alignment rollers 10, so that the rail can be kept at the position corresponding to the center of the support 1. Then, the height of the rail can be adjusted by the longitudinal adjustment component. Then, the butt joint of the rail can be conveyed to the position corresponding to the flash welding machine 2, and the rail can be flash welded by the flash welding machine 2. By rotating the threaded rod 7 to adjust the position of the moving block 8 at the same time, the rail can be better kept at the center position of the corresponding support 1, so that the rail can enter the interior of the flash welding machine 2 more accurately. At the same time, by adjusting the position of the rail by the transverse alignment component and the longitudinal alignment component at the same time, the rail can be less inclined during welding, resulting in the unevenness of the welded joint of the rail, making the welding effect of the rail better.

[0035] In an embodiment of the present application, as Figures 1 to 4 shown, the longitudinal adjustment component includes a support base 3. The support base 3 is provided on both sides of the flash welding machine 2, and the support base 3 is arranged on the side of the threaded rod 7 away from the flash welding machine 2. A set of support bases 3 are respectively provided on both sides of the flash welding machine 2, and a set of support bases 3 is composed of two support bases 3. Each set of support bases 3 is symmetrically arranged on the top of the support 1, and a first alignment roller 6 is rotatably connected between each set of support bases 3. The first alignment roller 6 is arranged at the position corresponding to the flash welding machine 2. A first lifting block 4 is provided on the top of each support base 3. A guide rod 5 is fixedly connected to the bottom of the first lifting block 4. The guide rod 5 is slidably connected to the inner position of the support base 3. A spring is fixedly connected between the guide rod 5 and the inner side wall of the support base 3. A first alignment roller 6 is rotatably connected between each set of first lifting blocks 4, and the first alignment roller 6 between each set of first lifting blocks 4 is parallel to the first alignment roller 6 between each set of support bases 3.

[0036] Specifically, when conveying and welding the rail, the first alignment rollers 6 on both sides of the flash welding machine 2 will clamp the rail and support the rail, so that the rail can be less deformed during welding, making the welding effect of the rail better. At the same time, by pushing the guide rod 5 by the spring, the first alignment roller 6 at the top can squeeze and fix the rail, so that the rail can be less displaced during welding.

[0037] In an embodiment of the present application, as Figure 1 and Figure 5As shown in the figure, a splash guard 11 is fixedly connected to the top of the support 1. A push block 12 is slidably connected inside the support 1. A push rod 13 is slidably connected inside the splash guard 11. The push block 12 and the push rod 13 are arranged oppositely. Guide grooves 15 are fixedly connected to both opposite side walls of the splash guard 11. A slider 16 is slidably connected inside the guide groove 15. The movement of the slider 16 is driven by an electric wheel. A push rod 13 is slidably connected inside the slider 16. The sliding of both the push block 12 and the push rod 13 is driven by an electric push rod. Grinding saw blades 14 are installed inside both the push block 12 and the push rod 13, and the rotation of the grinding saw blades 14 is driven by a motor. A dust-proof curtain 17 is fixedly connected inside the splash guard 11. The dust-proof curtain 17 is arranged at the position corresponding to the flash welder 2. A counterweight block 18 is fixedly connected inside the dust-proof curtain 17, and the counterweight block 18 is arranged at a position close to the bottom end of the dust-proof curtain 17.

[0038] Specifically, when flash welding the steel rail, since flash welding will apply pressure to the steel rail, there is likely to be excess stock at the joint of the welded steel rail. At this time, after the steel rail stays and cools for a period of time, the joint of the steel rail is conveyed into the inside of the splash guard 11, and the push block 12 and the push rod 13 are pushed by the electric push rod. At the same time, the position of the slider 16 is adjusted by the electric wheel, so that the excess stock at the joint of the steel rail can be polished by the grinding saw blade 14, making the joint of the steel rail smoother. At the same time, a dust-proof curtain 17 is arranged inside the splash guard 11, and the counterweight block 18 is used to pull the dust-proof curtain 17 to droop, which can block the metal debris generated by grinding and prevent the debris from rising, thereby making the working environment cleaner.

[0039] In an embodiment of the present application, as Figures 1 to 2 shown, a water collecting tank 20 is opened inside the support 1. The water collecting tank 20 is arranged at a position on the side of the splash guard 11 away from the flash welder 2. A spray pipe 19 is fixedly connected inside the support 1. A plurality of spray heads are installed on the side wall of the spray pipe 19, and the spray heads are arranged at positions corresponding to the top of the water collecting tank 20.

[0040] Specifically, after the grinding of the steel rail is completed, water can be conveyed through the spray pipe 19 and the water flows out through the spray heads, so as to spray and wash the passing steel rail, making the surface of the steel rail cleaner and cooling the steel rail at the same time, saving the cooling time and making the production efficiency of the steel rail higher.

[0041] In an embodiment of the present application, as Figure 1 shown in Figure 6As shown in the figure, two second lifting blocks 21 are provided on the top of the support 1. The two second lifting blocks 21 are arranged in parallel and symmetrically. A conveyor belt 22 is installed between the two second lifting blocks 21. The rotation direction of the conveyor belt 22 is the same as that of the first deviation correction roller 6. A plurality of anti-deviation rods 23 are fixedly connected to the top of the support 1. The second lifting block 21 is slidably connected to the anti-deviation rod 23. The lifting of the second lifting block 21 is driven by an electric push rod.

[0042] Specifically, by providing a conveyor belt 22 on the top of the support 1 to support the steel rail, it can effectively avoid the wear between the steel rail and the support 1 during the conveying process, thereby protecting the steel rail and the support 1, and at the same time effectively avoiding the deformation of the steel rail.

[0043] In an embodiment of the present application, as Figure 2 And Figure 7 As shown in the figure, a sliding groove 24 is opened inside the support 1. The sliding groove 24 is arranged on the side of the second lifting block 21 away from the flash welding machine 2. A sliding block 25 is slidably connected inside the sliding groove 24. An adjusting screw 26 is threadedly connected inside the sliding block 25. A hexagonal head 27 is fixedly connected to the side wall of the adjusting screw 26. The top of the adjusting screw 26 is rotatably connected to a bracket 28.

[0044] Specifically, by providing a slidable sliding block 25 inside the support 1 and a bracket 28 on the top of the sliding block 25, the longer steel rail can be further supported, so that the supporting effect on the steel rail is better. At the same time, the hexagonal head 27 can be rotated, so that the hexagonal head 27 drives the adjusting screw 26 to rotate. Then, through the cooperation of the sliding block 25 and the thread of the adjusting screw 26, the height of the bracket 28 can be adjusted, so that it is more convenient to support the steel rail.

[0045] In an embodiment of the present application, as Figure 7 As shown in the figure, an anti-slip gasket 29 is fixedly connected to the top of the bracket 28. During operation, when the steel rail is supported by the bracket 28, by providing an anti-slip gasket 29 on the top of the bracket 28, the friction between the bracket 28 and the steel rail can be made larger, so that the bracket 28 moves more stably with the steel rail. At the same time, the steel rail and the bracket 28 can be protected, effectively avoiding the wear between the steel rail and the bracket 28.

[0046] In an embodiment of the present application, as Figure 3 And Figure 8 As shown in the figure, a positioning block 30 is fixedly connected to the side wall of the threaded rod 7. The positioning block 30 is rotatably connected to the inside of the support 1.

[0047] Specifically, when the threaded rod 7 rotates inside the support 1, the rotation of the positioning block 30 is restricted by the support 1, so that the threaded rod 7 is less likely to tilt during rotation, making the rotation of the threaded rod 7 more stable.

[0048] In an embodiment of the present application, as Figure 3 with Figure 8 shown, a plurality of anti-wear balls 31 are provided between the support 1 and the positioning block 30. The side walls of the anti-wear balls 31 are in contact with the side walls of both the support 1 and the positioning block 30. During operation, when the positioning block 30 rotates inside the support 1, by providing the anti-wear balls 31 between the support 1 and the positioning block 30, the friction between the support 1 and the positioning block 30 can be made smaller, thereby reducing the wear between the support 1 and the positioning block 30.

[0049] Specifically, the overall working process and principle of the rail welding equipment of the present application are as follows:

[0050] Preparation stage: Place the rail to be welded between two sets of second alignment rollers 10 on the top of the support 1. The threads on the surface of the threaded rod 7 are symmetric along the center line. When the threaded rod 7 rotates, it drives two symmetrically arranged moving blocks 8 to approach or move away from each other, thereby adjusting the position of the second alignment rollers 10 to prepare for the subsequent precise adjustment of the lateral position of the rail.

[0051] Position adjustment stage: Control the rotation of the threaded rod 7 to drive the moving block 8 and the second alignment roller 10 to move, so that the rail is kept at the center position of the support 1 in the lateral direction. At the same time, the longitudinal adjustment assembly starts to work. On the support seats 3 on both sides of the flash welder 2, each pair of support seats 3 and the first alignment rollers 6 rotatably connected between each pair of first lifting blocks 4 clamp and support the rail. The bottom of the first lifting block 4 on the top of the support seat 3 is fixedly connected with a guide rod 5. The spring between the guide rod 5 and the inner side wall of the support seat 3 pushes the guide rod 5, so that the first alignment roller 6 on the top presses and fixes the rail, further stabilizing the position of the rail in the longitudinal direction and realizing the precise adjustment of the rail position.

[0052] Welding stage: Convey the butt joint of the rail with adjusted position to the position of the flash welder 2 and perform welding through the flash welder 2. During this process, the previously adjusted position of the rail ensures the stability of the rail during welding, reducing welding quality problems caused by position deviation.

[0053] Post - processing stage: After welding is completed, the rail is left to cool for a period of time, and then the connection part is conveyed into the splash guard 11. At this time, the splash guard 11, the push block 12, the push rod 13, and the grinding saw blade 14 work together. The electric push rod pushes the push block 12 and the push rod 13. The electric wheel adjusts the position of the slider 16 in the guide groove 15, driving the push rod 13 to move, so that the grinding saw blade 14 grinds the piled - up material at the welding joint. Using the principle that the grinding saw blade 14 is driven by a motor to rotate, the excess piled - up material is removed, making the connection part of the rail smoother. At the same time, the dust - blocking curtain 17 in the splash guard 11 droops under the action of the counterweight 18. According to its blocking principle, it blocks the metal debris generated by grinding, prevents the debris from rising, and keeps the working environment clean. After grinding is completed, the spray pipe 19 starts to work. Using the principle that the spray heads on its side wall spray water, it sprays and flushes the passing rail. It not only cleans the surface of the rail but also cools the rail according to the principle of heat exchange, saving the cooling time and improving production efficiency.

[0054] Conveying and supporting stage: The rail is conveyed by the conveyor belt 22. The rotation direction of the conveyor belt 22 is the same as that of the first deviation - correcting roller 6. According to the principle of rolling friction, the friction between the rail and the support 1 is reduced, avoiding wear between the rail and the support 1 during the conveying process and preventing the rail from deforming. For longer rails, by sliding the sliding block 25 in the sliding groove 24 and using the principle of the threaded fit between the adjusting screw 26 and the sliding block 25, turning the hexagonal head 27 drives the adjusting screw 26 to rotate, thereby adjusting the height of the bracket 28 to provide further support for the rail, making the support effect on the rail better. In addition, the anti - slip gasket 29 fixedly connected to the top of the bracket 28 increases the friction force with the rail. According to the friction force principle, the bracket 28 moves more stably with the rail, and at the same time protects the rail and the bracket 28, avoiding wear between the two. During the operation of the entire device, the positioning block 30 on the side wall of the threaded rod 7 is rotatably connected inside the support 1, restricting the inclination of the threaded rod 7 when it rotates, making the rotation of the threaded rod 7 more stable. The anti - wear rolling balls 31 between the support 1 and the positioning block 30 reduce the friction force between the two. According to the principle that rolling friction replaces sliding friction to reduce friction force, wear is reduced, ensuring the stable operation of the device.

[0055] In summary, the rail welding equipment of the present application can effectively improve the butt - joint accuracy of the rail, reduce the unevenness at the welding joint, and thus effectively ensure the smooth and safe operation of the train.

[0056] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0057] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A rail welding device, characterized in that, It includes a support, a flash welding machine, a lateral deviation correction component, and a longitudinal deviation correction component. Among them, the flash welding machine, the lateral deviation correction component, and the longitudinal deviation correction component are respectively arranged on the support; the lateral deviation correction component includes a plurality of threaded rods, which are distributed on both sides of the flash welding machine and inside the support. The threads on the surface of the threaded rods are symmetric along the center line, and two symmetrically arranged moving blocks along the center line are threadedly connected. A support frame is fixedly connected to the top of the moving block, and a second deviation correction roller is rotatably connected to the support frame; the longitudinal deviation correction component includes support seats, which are symmetrically arranged on both sides of the flash welding machine. Each group of support seats consists of two. A first lifting block is provided at the top of each support seat. A guide rod is fixedly connected to the bottom of the first lifting block. The guide rod is slidably connected inside the support seat and a spring is fixedly connected between the guide rod and the inner side wall of the support seat. A first deviation correction roller is rotatably connected between each group of support seats and between each group of first lifting blocks. The plurality of first deviation correction rollers are arranged in parallel.

2. The rail welding equipment according to claim 1, characterized in that, A splash-proof cover is fixedly connected to the top of the support. A push block is slidably connected inside the support. A push rod is slidably connected inside the splash-proof cover. The push block and the push rod are arranged opposite to each other. Guide grooves are fixedly connected to both side walls of the splash-proof cover. A slider driven by an electric wheel is slidably connected inside the guide groove. The push rod is slidably connected inside the slider. The push block and the push rod are driven to slide by an electric push rod. A grinding saw blade driven by a motor is installed inside both of them. A dust-proof curtain is fixedly connected inside the splash-proof cover, and a counterweight block is fixedly connected inside the dust-proof curtain near the bottom end.

3. The rail welding equipment according to claim 2, characterized in that, A water collecting tank is provided inside the support on the side of the splash-proof cover away from the flash welding machine. A spray pipe is fixedly connected inside the support. A plurality of spray heads are installed on the side wall of the spray pipe at the top of the water collecting tank.

4. The rail welding equipment according to claim 1, characterized in that, Two parallel and symmetric second lifting blocks are provided on the top of the support. A conveyor belt is installed between them. The rotation direction of the conveyor belt is the same as that of the first deviation correction roller. A plurality of anti-deviation rods are fixedly connected to the top of the support. The second lifting blocks are slidably connected to the anti-deviation rods and are driven to lift by an electric push rod.

5. The rail welding equipment according to claim 4, characterized in that, A sliding groove is provided inside the support on the side of the second lifting block away from the flash welding machine. A sliding block is slidably connected inside the sliding groove. An adjusting screw is threadedly connected inside the sliding block. A hexagonal head is fixedly connected to the side wall of the adjusting screw, and a bracket is rotatably connected to the top.

6. The rail welding equipment according to claim 5, characterized in that, An anti-slip gasket is fixedly connected to the top of the bracket.

7. The rail welding equipment according to claim 1, characterized in that, A positioning block is fixedly connected to the side wall of the threaded rod, and the positioning block is rotatably connected inside the support.

8. The rail welding equipment according to claim 7, characterized in that A plurality of anti-wear balls are provided between the support and the positioning block. The side walls of the anti-wear balls are in contact with the side walls of the support and the positioning block.

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