Special pad for rail moving welding and climbing of ballast track

By designing a special shim for moving and climbing ballast rails, and using rail base corner blocks and positioning plugs to fix the rails to the pre-embedded iron base, the problem of structural conflict between the welding machine and the pre-embedded iron base of the ballast rail was solved. This achieved reliable fixing of the rails, avoided the risk of the welding machine derailing and overturning, and improved welding safety and efficiency.

CN224543519UActive Publication Date: 2026-07-24BEIJING RAILWELD NEW MATERIAL TECH CO LTD +4
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING RAILWELD NEW MATERIAL TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the existing technology, the welding machine cannot be directly positioned for welding due to the conflict between the size of the welding machine and the structure of the pre-embedded iron seat of the ballasted track. In addition, the existing pad tools are of different sizes, making it difficult to reliably fix the rails, which poses safety hazards and risks of derailment and overturning.

Method used

Design a special pad block for moving and climbing rails for ballasted tracks, including a rail base corner pressure block, a pad block body, a first positioning plug and a second positioning plug. It is fixed to the pre-embedded iron seat by snap-fit ​​and abutment, so as to realize the lateral and longitudinal locking of the rail and ensure stable welding by the welding machine.

Benefits of technology

This ensures reliable rail fixation, avoids the risk of welding machine derailment and overturning, and improves welding safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special pad for rail moving welding and climbing of ballast track, including rail bottom angle pressure block, pad main part, first locating insert, second locating insert, the both sides of pad main part are provided with first mounting panel and second mounting panel, the first locating insert abuts on one side of the convex surface of pre -buried iron seat, the second locating insert abuts on the convex surface of the other side of pre -buried iron seat, and first clamping piece is used for clamping in the recess of one side of pre -buried iron seat, and second clamping piece is used for clamping in the recess of the other side of pre -buried iron seat, the bottom surface of abutment plate is used for the track bottom angle one side of the inclined surface of pad, the utility model provides a special pad for rail moving welding and climbing of ballast track, has adapted the welding operation working condition of ballast track FC type fastener type, can realize the pre -buried iron seat of pad and ballast track FC type fastener, the double locking of rail and pad, realizes the fixed of rail's horizontal and longitudinal, reduces the hidden danger of safety, avoids the risk of falling and overturning of welding machine.
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Description

Technical Field

[0001] This utility model relates to the field of rail welding technology, and more specifically, to a special pad for moving and climbing rails for ballasted tracks. Background Technology

[0002] Currently, during on-site mobile welding operations, the welding machine cannot be directly positioned for welding due to a conflict between its size and the embedded iron base structure of the ballasted track. It is necessary to raise the rails on both sides of the weld joint to prevent interference between the welding machine and the embedded iron base structure of the FC-type fasteners on the ballasted track when clamped. Raising the rails on both sides of the weld joint creates a slope, known as a slope support. Once the welding machine climbs the slope, the welding operation can be completed smoothly.

[0003] Existing technologies for slope support of FC-type fastener rails involve on-site personnel using wooden planks, round steel bars, or steel plates of a certain height to support the rail base. This method is somewhat arbitrary, with inconsistent sizes and specifications of support tools, unreliable structural strength, difficulty in achieving lateral and longitudinal positioning and fixation, posing safety hazards, and increasing the risk of welding machines derailing or overturning. Existing technologies use sleeper bolts as a fixing reference to achieve lateral and longitudinal locking of the support blocks on the rail bearing groove. This technology is only suitable for track work on ballast track with anchor bolts, and its size and specifications are set based on the anchor bolts on the concrete sleeper bearing groove. It is not suitable for slope support work on FC-type fastener rails on ballast tracks. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a special pad for climbing slope of steel rail for moving welding of ballasted rail, which is suitable for welding operation conditions of FC type fasteners for ballasted rail. It can realize the double locking of the pad and the pre-embedded iron seat of FC type fastener of ballasted rail, and the rail and the pad, so as to realize the horizontal and vertical fixation of the rail, reduce safety hazards, and avoid the risk of welding machine derailment and overturning.

[0005] Based on the above objectives, this utility model provides a special pad block for movable welding and climbing of ballast track rails, including a rail base corner pressure block, a pad block body, a first positioning plug, and a second positioning plug. The pad block body has a groove in its center, and a first mounting plate and a second mounting plate are provided on both sides of the pad block body. The first mounting plate has a first insertion hole, and the second mounting plate has a second insertion hole. The lower end of the first positioning plug passes through the first insertion hole and abuts against a convex surface on one side of the embedded iron base. The lower end of the second positioning plug passes through the second insertion hole and abuts against a convex surface on the other side of the embedded iron base. The bottom surface of the first mounting plate has a first locking member for engaging with a groove on one side of the embedded iron base. The bottom surface of the second mounting plate has a second locking member for engaging with a groove on the other side of the embedded iron base. The top of the rail base corner pressure block has an abutment plate, the bottom surface of which is used to conform to the inclined surface of one side of the rail base corner. The bottom of the rail base corner pressure block is embedded in the groove of the pad block.

[0006] Optionally, it also includes bolts. The top surface of the abutment plate has a first mounting hole, and the bottom surface of the pad groove has a second mounting hole. The bolts pass through the first mounting hole and the second mounting hole in sequence to install the rail bottom corner pressure block on the pad body.

[0007] Optionally, it also includes a first anti-drop pin and a second anti-drop pin. The first positioning plug has a first pin hole on its side, and the second positioning plug has a second pin hole on its side. The first positioning plug has a first upper plate on its top, and the second positioning plug has a second upper plate on its top. The outer dimensions of the first upper plate are larger than the inner diameter of the first insertion hole, and the outer dimensions of the second upper plate are larger than the inner diameter of the second insertion hole.

[0008] Optionally, the pad groove includes a first sidewall and a second sidewall disposed opposite to each other, the first mounting plate is mounted on the outer surface of the first sidewall and the top surface of the first mounting plate is flush with the top surface of the first sidewall, the second mounting plate is mounted on the outer surface of the second sidewall and the top surface of the second mounting plate is flush with the top surface of the second sidewall.

[0009] Optionally, a height pad is also included, which is used to place on the bottom surface of the rail base, and the top surface of the height pad has weight-reducing holes.

[0010] Optionally, the pad body is integrally formed.

[0011] This utility model provides a special pad for movable welding and climbing of ballast track rails, including a rail base corner pressure block, a pad body, a first positioning plug, and a second positioning plug. First, the bottom of the rail base corner pressure block is embedded in the groove of the pad. Then, the lower end of the first positioning plug passes through the first insertion hole, and the lower end of the second positioning plug passes through the second insertion hole. Finally, the first clip is engaged in the groove on one side of the pre-embedded iron seat, and the second clip is engaged in the groove on the other side of the pre-embedded iron seat. The first positioning plug is pressed down so that its lower end abuts against the convex surface on one side of the pre-embedded iron seat, and the second positioning plug is pressed down so that its lower end abuts against the convex surface on the other side of the pre-embedded iron seat. The bottom surface of the abutment plate at the top of the rail base corner pressure block is attached to the inclined surface on one side of the rail base corner. This utility model provides a special shim for moving and climbing rails for ballasted tracks, suitable for welding operations using FC-type fasteners for ballasted tracks. By engaging a first clip in a groove on one side of the embedded iron seat and a second clip in a groove on the other side of the embedded iron seat, the shim is fixed longitudinally along the length of the rail and vertically to the ground. By engaging a first positioning plug and its lower end against a convex surface on one side of the embedded iron seat, and by engaging a second positioning plug and its lower end against a convex surface on the other side of the embedded iron seat, the shim is fixed laterally perpendicular to the length of the rail. By attaching the bottom surface of the abutment plate at the top of the rail base corner pressure block to the inclined surface on one side of the rail base corner, the rail is fixed laterally and longitudinally. This achieves a double locking between the shim and the embedded iron seat of the FC-type fastener for ballasted tracks, and between the rail and the shim, reducing safety hazards and avoiding the risk of the welding machine derailing or overturning. Attached Figure Description

[0012] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, which will help to understand the purpose and advantages of this utility model, wherein:

[0013] Figure 1 This is a schematic diagram of the structure of a special rail movable welding and climbing pad for ballasted tracks according to an embodiment of the present invention;

[0014] Figure 2 An exploded view of a special rail movable welding and climbing pad for ballasted tracks according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram illustrating the installation of a special intermediate pad for movable welding of ballast rails for climbing slopes, the rail, the embedded iron seat of the FC type fastener, and the sleeper, according to an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the height pad in the special pad block for moving and climbing ballast rails in an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the embedded iron base for FC type fasteners.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1: Rail base corner pressure block; 2: Pad body; 3: First positioning plug; 4: Second positioning plug; 5: Pad groove; 6: First mounting plate; 7: Second mounting plate; 8: First insertion hole; 9: Second insertion hole; 10: One side convex surface of the embedded iron seat; 11: One side groove of the embedded iron seat; 12: First clamp; 13: Second clamp; 14: Abutment plate; 15: Bolt; 16: First mounting hole; 17: Second mounting hole; 18: First anti-drop pin; 19: Second anti-drop pin; 20: First upper plate; 21: Second upper plate; 22: First side wall; 23: Second side wall; 24: Height pad; 25: Weight reduction hole; 26: Rail; 27: Special pad for rail moving and welding for climbing slopes in ballasted track; 28: Embedded iron seat; 29: Sleeper. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] like Figures 1 to 5 As shown, the present invention provides a special shim for movable welding and climbing of ballast track rails, comprising a rail base corner block 1, a shim body 2, a first positioning plug 3, and a second positioning plug 4. The shim body 2 has a shim groove 5 in the middle, and a first mounting plate 6 and a second mounting plate 7 on both sides. The first mounting plate 6 has a first insertion hole 8, and the second mounting plate 7 has a second insertion hole 9. The lower end of the first positioning plug 3 passes through the first insertion hole 8 and abuts against the convex surface 10 of the pre-embedded iron base. The second positioning plug 4... The lower end of component 4 passes through the second insertion hole 9 and abuts against the convex surface on the other side of the embedded iron seat. The bottom surface of the first mounting plate 6 is provided with a first clip 12, which is used to clip into the groove 11 on one side of the embedded iron seat. The bottom surface of the second mounting plate 7 is provided with a second clip 13, which is used to clip into the groove on the other side of the embedded iron seat. The top of the rail bottom corner pressure block 1 is provided with an abutment plate 14, the bottom surface of which is used to fit against the inclined surface on one side of the rail bottom corner of the rail. The bottom of the rail bottom corner pressure block 1 is embedded in the groove of the pad block 5.

[0022] This utility model provides a special pad for moving and welding ballast rails for climbing slopes, including a rail base corner pressure block 1, a pad body 2, a first positioning plug 3, and a second positioning plug 4. First, the bottom of the rail base corner pressure block 1 is embedded in the pad groove 5. Then, the lower end of the first positioning plug 3 passes through the first insertion hole 8, and the lower end of the second positioning plug 4 passes through the second insertion hole 9. Finally, the first clip 12 is snapped into the groove 11 on one side of the pre-embedded iron seat, and the second clip 13 is snapped into the groove on the other side of the pre-embedded iron seat. The first positioning plug 3 is pressed down so that its lower end abuts against the convex surface 10 on one side of the pre-embedded iron seat, and the second positioning plug 4 is pressed down so that its lower end abuts against the convex surface on the other side of the pre-embedded iron seat. The bottom surface of the abutment plate 14 at the top of the rail base corner pressure block 1 is attached to the inclined surface on one side of the rail base corner. This utility model provides a special rail moving welding and climbing pad for ballasted tracks, applicable to welding operations using FC-type fasteners for ballasted tracks. By engaging the first clamp 12 into the groove 11 on one side of the pre-embedded iron seat and the second clamp 13 into the groove on the other side of the pre-embedded iron seat, the pad is fixed longitudinally along the length of the rail and vertically to the ground on the pre-embedded iron seat. The first positioning plug 3 abuts against the convex surface 10 on one side of the pre-embedded iron seat. By using the second positioning plug 4 and abutting the lower end of the second positioning plug against the convex surface on the other side of the pre-embedded iron seat, the pad block is horizontally fixed on the pre-embedded iron seat perpendicular to the length of the rail. By attaching the bottom surface of the abutting plate 14 at the top of the rail bottom corner pressure block 1 to the inclined surface on one side of the rail bottom corner, the rail is horizontally and longitudinally fixed. This achieves double locking between the pad block and the pre-embedded iron seat of the ballast track FC type fastener, and between the rail and the pad block, reducing safety hazards and avoiding the risk of the welding machine derailing and overturning.

[0023] It should be noted that: the embedded iron base refers to the embedded iron base of the FC type fastener; the convex surface 10 on one side of the embedded iron base, the convex surface on the other side of the embedded iron base, the groove 11 on one side of the embedded iron base, and the groove on the other side of the embedded iron base are all existing structures in the existing embedded iron bases of the FC type fastener, such as... Figure 5 As shown; the bottom surface of the abutment plate 14 is an inclined surface that matches the inclined surface of the rail bottom corner, which can better fit with the inclined surface of the rail bottom corner side of the rail.

[0024] like Figure 1 and Figure 2As shown, it also includes bolts 15. The top surface of the abutment plate 14 has a first mounting hole 16, and the bottom surface of the pad groove 5 has a second mounting hole 17. After the bolts 15 pass through the first mounting hole 16 and the second mounting hole 17 in sequence, the rail base corner pressure block 1 is installed on the pad body 2. In this embodiment, the bolts 15 can pass through the first mounting hole 16 in the rail base corner pressure block 1 and the second mounting hole 17 in the pad body 2. Power tools and sockets can be used to quickly tighten and loosen the rail base corner fixing pressure block. The bolts 15 can fix the rail base corner pressure block 1 to the rail base corner, which improves the convenience of disassembly and installation of the special pad for moving and welding the rail for ballast track.

[0025] like Figure 1 and Figure 2 As shown, it also includes a first anti-drop pin 18 and a second anti-drop pin 19. A first pin hole is provided on the side of the first positioning plug 3, and a second pin hole is provided on the side of the second positioning plug 4. A first upper plate 20 is provided on the top of the first positioning plug 3, and a second upper plate 21 is provided on the top of the second positioning plug 4. The outer dimensions of the first upper plate 20 are larger than the inner diameter of the first insertion hole 8, and the outer dimensions of the second upper plate 21 are larger than the inner diameter of the second insertion hole 9. In this embodiment, the first anti-drop pin 18 and the first upper plate 20 can limit the first positioning plug 3, preventing it from falling out of the first insertion hole 8 and onto the railway site, thus reducing safety hazards. Similarly, the second anti-drop pin 19 and the second upper plate 21 can limit the second positioning plug 4, preventing it from falling out of the second insertion hole 9 and onto the railway site, thus reducing safety hazards.

[0026] like Figure 1 and Figure 2 As shown, the top of the first positioning plug 3 is provided with a first upper plate 20, and the top of the second positioning plug 4 is provided with a second upper plate 21. When the first positioning plug 3 is installed in the first socket 8, the first upper plate 20 is attached to the first mounting plate 6. When the second positioning plug 4 is installed in the second socket 9, the second upper plate 21 is attached to the second mounting plate 7. In this embodiment, the first upper plate 20 can limit the first positioning plug 3 from above, preventing the first positioning plug 3 from falling out from the top of the first socket 8, thus reducing safety hazards. The second upper plate 21 can limit the second positioning plug 4 from above, preventing the second positioning plug 4 from falling out from the top of the second socket 9, thus reducing safety hazards.

[0027] like Figure 2As shown, the pad groove 5 includes a first sidewall 22 and a second sidewall 23 disposed opposite to each other. A first mounting plate 6 is mounted on the outer surface of the first sidewall 22, and the top surface of the first mounting plate 6 is flush with the top surface of the first sidewall 22. A second mounting plate 7 is mounted on the outer surface of the second sidewall 23, and the top surface of the second mounting plate 7 is flush with the top surface of the second sidewall 23. In this embodiment, the installation of the bolt 15 is facilitated, and the processing difficulty of the pad body 2 is reduced.

[0028] like Figure 3 and Figure 4 As shown, it also includes a height pad 24, which is used to support the bottom surface of the rail base. The top surface of the height pad 24 has a weight-reducing hole 25. In this embodiment, the height pad 24 can be made of Q235 steel, which has high strength and wear resistance. Before attaching the rail base corner clamping block 1 to the inclined surface of the rail base corner, the height pad 24 is placed on the bottom of the rail. After raising the rail, it is convenient to attach the rail base corner clamping block 1 to the inclined surface of the rail base corner. The weight-reducing hole 25 reduces the weight of the height pad 24 and also makes it easier for manual one-handed operation.

[0029] It should be noted that the installation diagram of the special climbing pad 27 for ballasted track, the rail 26, the embedded iron seat 28 of the FC type fastener, and the sleeper 29 is as follows: Figure 3 As shown.

[0030] In one embodiment of this utility model, the main body 2 of the pad is integrally formed, which reduces the number of molds required, simplifies the manufacturing process, facilitates mass production, and improves production efficiency.

[0031] This utility model provides a special pad for moving and welding ballast rails for climbing slopes, including a rail base corner pressure block 1, a pad body 2, a first positioning plug 3, and a second positioning plug 4. First, the bottom of the rail base corner pressure block 1 is embedded in the pad groove 5. Then, the lower end of the first positioning plug 3 passes through the first insertion hole 8, and the lower end of the second positioning plug 4 passes through the second insertion hole 9. Finally, the first clip 12 is snapped into the groove 11 on one side of the pre-embedded iron seat, and the second clip 13 is snapped into the groove on the other side of the pre-embedded iron seat. The first positioning plug 3 is pressed down so that its lower end abuts against the convex surface 10 on one side of the pre-embedded iron seat, and the second positioning plug 4 is pressed down so that its lower end abuts against the convex surface on the other side of the pre-embedded iron seat. The bottom surface of the abutment plate 14 at the top of the rail base corner pressure block 1 is attached to the inclined surface on one side of the rail base corner. This utility model provides a special rail moving welding and climbing pad for ballasted tracks, applicable to welding operations using FC-type fasteners for ballasted tracks. By engaging the first clamp 12 into the groove 11 on one side of the pre-embedded iron seat and the second clamp 13 into the groove on the other side of the pre-embedded iron seat, the pad is fixed longitudinally along the length of the rail and vertically to the ground on the pre-embedded iron seat. The first positioning plug 3 abuts against the convex surface 10 on one side of the pre-embedded iron seat. By using the second positioning plug 4 and abutting the lower end of the second positioning plug against the convex surface on the other side of the pre-embedded iron seat, the pad block is horizontally fixed on the pre-embedded iron seat perpendicular to the length of the rail. By attaching the bottom surface of the abutting plate 14 at the top of the rail bottom corner pressure block 1 to the inclined surface on one side of the rail bottom corner, the rail is horizontally and longitudinally fixed. This achieves double locking between the pad block and the pre-embedded iron seat of the ballast track FC type fastener, and between the rail and the pad block, reducing safety hazards and avoiding the risk of the welding machine derailing and overturning.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A special pad block for moving and climbing ballast tracks, characterized in that, Includes rail base corner pressure block, pad block body, first positioning plug, and second positioning plug, wherein: The main body of the pad has a pad groove in the middle, and a first mounting plate and a second mounting plate are provided on both sides of the main body of the pad. The first mounting plate has a first insertion hole, and the second mounting plate has a second insertion hole. The lower end of the first positioning plug passes through the first insertion hole and abuts against the convex surface of one side of the embedded iron base. The lower end of the second positioning plug passes through the second insertion hole and abuts against the convex surface of the other side of the embedded iron base. The bottom surface of the first mounting plate is provided with a first clip, which is used to engage with the groove on one side of the embedded iron base. The bottom surface of the second mounting plate is provided with a second clip, which is used to engage with the groove on the other side of the embedded iron base. The top of the rail base corner pressure block is provided with an abutment plate, the bottom surface of which is used to fit against the inclined surface of one side of the rail base corner, and the bottom of the rail base corner pressure block is embedded in the groove of the pad block.

2. The special rail moving and climbing pad for ballasted tracks according to claim 1, characterized in that, It also includes bolts. The top surface of the abutment plate has a first mounting hole, and the bottom surface of the pad groove has a second mounting hole. The bolts pass through the first mounting hole and the second mounting hole in sequence to install the rail bottom corner pressure block on the pad body.

3. The special rail moving and climbing pad for ballasted tracks according to claim 1, characterized in that, It also includes a first anti-drop pin and a second anti-drop pin. The first positioning plug has a first pin hole on its side, and the second positioning plug has a second pin hole on its side. The first positioning plug has a first upper plate on its top, and the second positioning plug has a second upper plate on its top. The outer dimensions of the first upper plate are larger than the inner diameter of the first insertion hole, and the outer dimensions of the second upper plate are larger than the inner diameter of the second insertion hole.

4. The special rail moving and climbing pad for ballasted tracks according to claim 1, characterized in that, The pad groove includes a first sidewall and a second sidewall disposed opposite to each other. The first mounting plate is mounted on the outer surface of the first sidewall, and the top surface of the first mounting plate is flush with the top surface of the first sidewall. The second mounting plate is mounted on the outer surface of the second sidewall, and the top surface of the second mounting plate is flush with the top surface of the second sidewall.

5. The special rail moving and climbing pad for ballasted tracks according to claim 1, characterized in that, It also includes a height pad, which is used to place on the bottom surface of the rail base, and the top surface of the height pad has weight reduction holes.

6. The special rail moving weld climbing pad for ballasted tracks according to claim 4, characterized in that, The main body of the pad is integrally formed.