Rail adjusting and aligning device suitable for welding of long rail in metro section
By designing a tooling main frame and an adjusting bolt rail alignment device, the problem of aligning 100-meter-long rails on curved sections was solved, achieving precise alignment and insulation between new and old rails, and improving welding quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 刘迎
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-14
AI Technical Summary
When welding 100-meter-long rails in subway sections, especially on curved sections with small radii, the rails are affected by the curvature of the curve, resulting in a large deviation in the alignment of the rail ends. Furthermore, the superelevation of the curve causes twisting, making it difficult to achieve effective alignment.
A rail alignment device was designed, comprising a tooling main frame, a slide rail, a new rail slide plate, and vertical and horizontal adjusting bolts. The horizontal position and height of the new rail are adjusted by adjusting the bolts, and the insulating pads are used to prevent current from damaging the old rail, thus achieving alignment and insulation between the new and old rails.
This achieved effective alignment of the ends of the 100-meter-long rails, improved welding precision, avoided electric shock damage from the old rails, and ensured welding quality and safety.
Smart Images
Figure CN224115519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail welding equipment technology, and in particular to a rail alignment device suitable for welding long rails in subway sections. Background Technology
[0002] Rails are one of the main components of the track structure. Their function is to guide the movement of locomotives and rolling stock, directly support the load of the vehicles, and transfer it to the sleepers and ballast foundation. Rails must provide the wheels with a continuous, smooth, and least resistance-prone rolling surface. Therefore, the quality and working condition of the rails have a direct impact on the overall quality of the track and traffic safety.
[0003] Currently, common mobile flash welding machines can weld 25-meter standard rails within a given section. The welding machine chuck can effectively control the alignment of the rail ends, making alignment and rail adjustment relatively straightforward. However, for 100-meter long rails, especially on curves with small radii, the rail end alignment is significantly affected by the curve curvature. Furthermore, the superelevation of the curve causes some twisting at the 100-meter rail ends, posing a greater challenge to alignment. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a rail alignment device suitable for welding long rails in subway sections, aiming to improve the problem of aligning the ends of 100-meter-long rails and the difficulty of rail adjustment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rail alignment device suitable for welding long rails in subway sections, comprising a main tooling frame, two slide rails at the top of the main tooling frame, a new rail slide plate slidably connected to the top of the main tooling frame, a vertical adjustment bolt I threadedly connected to the inner wall of the main tooling frame, a second vertical adjustment bolt threadedly connected to the right side of the main tooling frame, a new rail placed at the top of the new rail slide plate, two new rail fastening plates slidably connected to the top of the new rail slide plate, multiple new rail fixing bolts threadedly connected to the inner wall of the new rail slide plate, a horizontal adjustment bolt threadedly connected to the top of the new rail fastening plates, and an insulating component provided on the left side of the main tooling frame.
[0006] Preferably, an insulating pad is installed at the top of the main tooling frame, an in-service old rail is placed on the inner wall of the insulating pad, an in-service rail fastener is slidably connected to the outer wall of the main tooling frame, and a plurality of in-service rail fixing bolts are threadedly connected to the inner wall of the main tooling frame.
[0007] Preferably, the new rail fastener is slidably connected to the outer wall of the new rail, and a plurality of the new rail fixing bolts are slidably connected to the outer wall of the new rail fastener.
[0008] Preferably, the lateral adjusting bolt is threaded onto the inner wall of the new rail buckle plate and contacts the new rail.
[0009] Preferably, one of the vertical adjusting bolts is threadedly connected to the inner wall of the main frame of the tooling and in contact with the track bed surface, and the other vertical adjusting bolt is threadedly connected to the inner wall of the main frame of the tooling and in contact with the track bed surface.
[0010] Preferably, the in-service rail fastening plate is slidably connected to the outer wall of the insulating gasket, and the plurality of in-service rail fixing bolts are slidably connected to the outer wall of the in-service rail fastening plate.
[0011] Preferably, the new track slide is slidably connected to the inner wall of the slide rail.
[0012] This utility model has the following beneficial effects:
[0013] 1. In this utility model, the new rail slide plate is installed on the top of the main frame of the tooling, and the new rail fastener and the new rail fixing bolts fix the new rail on the new rail slide plate. By rotating the two horizontal adjusting bolts, the horizontal position of the new rail is changed. By rotating the first vertical adjusting bolt and the second vertical adjusting bolt, the height and deflection angle of the new rail end are changed, so as to facilitate the alignment of the new rail end.
[0014] 2. In this utility model, by installing the insulating gasket on the outer wall of the bottom end of the main frame of the tooling, the in-service rail fastener plate fixes the main frame of the tooling to the insulating gasket through the in-service rail fixing bolts, so that the in-service old rail fixes the position of the main frame of the tooling, and the in-service old rail can achieve the effect of avoiding the current discharge from damaging the in-service old rail when welding the new rail through the insulating gasket. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of a rail alignment device for welding long rails in subway sections, as proposed in this utility model.
[0016] Figure 2 This is a top view of a rail alignment device for welding long rails in subway sections, as proposed in this utility model.
[0017] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.
[0018] Legend:
[0019] 1. Tooling main frame; 2. New rail slide plate; 3. Vertical adjustment bolt one; 4. Vertical adjustment bolt two; 5. Insulating gasket; 6. In-service rail fastening plate; 7. In-service rail fixing bolt; 8. Horizontal adjustment bolt; 9. New rail fixing bolt; 10. New rail fastening plate; 11. Slide rail; 12. New rail; 13. In-service old rail. Detailed Implementation
[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a rail alignment device suitable for welding long rails in subway sections, comprising a main tooling frame 1, two slide rails 11 at the top of the main tooling frame 1, a new rail slide plate 2 slidably connected to the top of the main tooling frame 1, a vertical adjustment bolt 3 threadedly connected to the inner wall of the main tooling frame 1, a vertical adjustment bolt 4 threadedly connected to the right side of the main tooling frame 1, a new rail 12 placed at the top of the new rail slide plate 2, two new rail fastening plates 10 slidably connected to the top of the new rail slide plate 2, multiple new rail fixing bolts 9 threadedly connected to the inner wall of the new rail slide plate 2, a horizontal adjustment bolt 8 threadedly connected to the top of the new rail fastening plates 10, an insulating component provided on the left side of the main tooling frame 1, and the new rail slide plate 2 slidably connected to the inner wall of the slide rails 11.
[0022] Specifically, by installing the new rail slide plate 2 inside the slide rail 11, the new rail slide plate 2 can slide on the top outer wall of the tooling main frame 1. Then, the new rail 12 is placed on the new rail slide plate 2, and two new rail fastening plates 10 are placed on the left and right sides of the new rail 12 respectively. The new rail fastening plates 10 are fixed to the new rail 12 by the horizontal adjusting bolts 8 and the new rail fixing bolts 9. By rotating the horizontal adjusting bolts 8 on the left and right sides of the new rail 12, the horizontal position of the new rail 12 can be adjusted. Then, the vertical adjusting bolts 1 3 and 2 4 are threaded to the tooling main frame 1 on the left and right sides of the new rail slide plate 2. By adjusting the vertical adjusting bolts 1 3 and 2 4, the height of the rail end of the new rail 12 and the rotation deflection angle of the rail end cross section can be controlled, thereby achieving the effect of facilitating the alignment of the rail end of the new rail 12.
[0023] Reference Figure 1 and Figure 2 An insulating pad 5 is installed at the top of the main frame 1 of the fixture. An in-service old rail 13 is placed on the inner wall of the insulating pad 5. An in-service rail buckle plate 6 is slidably connected to the outer wall of the main frame 1 of the fixture. Multiple in-service rail fixing bolts 7 are threadedly connected to the inner wall of the main frame 1 of the fixture.
[0024] Specifically, by wrapping an insulating pad 5 around the bottom outer wall of the old rail 13, the left side of the insulating pad 5 is secured in the left inner wall of the main frame 1 of the tooling, and the right side of the insulating pad 5 is secured by the rail fastening plate 6 and the rail fixing bolt 7, thus fixing the bottom of the old rail 13 and achieving insulation between the 100-meter rail and the existing rail, preventing the external discharge of current during flash welding from damaging the old rail 13.
[0025] Reference Figure 1 , Figure 2 and Figure 3 The new rail fastener 10 is slidably connected to the outer wall of the new rail 12, and multiple new rail fixing bolts 9 are slidably connected to the outer wall of the new rail fastener 10. The transverse adjusting bolts 8 are threadedly connected to the inner wall of the new rail fastener 10 and contact the new rail 12.
[0026] Specifically, by placing a new rail 12 at the top center of the new rail slide plate 2, and fixing two new rail buckle plates 10 to the left and right ends of the new rail slide plate 2 respectively by four new rail fixing bolts 9, the new rail buckle plates 10 restrict the up and down movement of the new rail 12. Then, by rotating two horizontal adjustment bolts 8 to make them contact the outer wall of the new rail 12, the left and right movement of the new rail 12 can be restricted. Adjusting the two horizontal adjustment bolts 8 can change the horizontal position of the new rail 12, so as to facilitate the fixing and horizontal alignment of the new rail 12.
[0027] Reference Figure 1 Vertical adjusting bolt 3 is threadedly connected to the inner wall of the main frame 1 of the tooling and contacts the track bed surface. Vertical adjusting bolt 4 is threadedly connected to the inner wall of the main frame 1 of the tooling and contacts the track bed surface.
[0028] Specifically, vertical adjusting bolts 1-3 and 2-4 are located on the left and right sides of the new track slide plate 2 and are threadedly connected to the inner wall of the main frame 1 of the tooling. The bottom end is in contact with the track bed surface. Rotating vertical adjusting bolt 1-3 can change the height of the left side of the new track slide plate 2, and rotating vertical adjusting bolt 2-4 can change the height of the right side of the new track slide plate 2. By adjusting vertical adjusting bolts 1-3 and 2-4, the height and angle of the new track 12 can be adjusted.
[0029] Reference Figure 1 The in-service rail fastening plate 6 is slidably connected to the outer wall of the insulating pad 5, and multiple in-service rail fixing bolts 7 are slidably connected to the outer wall of the in-service rail fastening plate 6.
[0030] Specifically, the tooling main frame 1 is connected to the tooling main frame 1 by four in-service rail fixing bolts 7 and they contact the in-service rail fastening plate 6, so that the in-service rail fastening plate 6 is fixed. The in-service rail fastening plate 6 and the inner wall of the left side of the tooling main frame 1 together fix the insulating gasket 5 to the outer wall of the bottom end of the tooling main frame 1, so as to achieve the effect of insulation between the new rail 12 and the in-service old rail 13.
[0031] Working principle: Install two sets of rail alignment devices at a distance of 1 meter from the front and rear long rail ends respectively. Then install the insulating pad 5 on the bottom of the old rail 13 in service. The main frame of the tooling is fastened to the bottom of the old rail 13 in service. The main frame of the tooling is fixed to the outer wall of the insulating pad 5 through the old rail fastening plate 6 and the old rail fixing bolt 7 in service, so that the main frame of the tooling is fixed to the old rail 13 in service and the old rail 13 in service is insulated from the main frame of the tooling.
[0032] After the main frame 1 is fixed, the new rail slide plate 2 is installed inside the slide rail 11, allowing the new rail slide plate 2 to slide on the outer wall of the main frame 1. Then, the vertical adjusting bolt 24 is threaded onto the inner right wall of the main frame 1, and the vertical adjusting bolt 3 is threaded onto the inner left wall of the main frame 1, ensuring the bottom ends of the vertical adjusting bolts 3 and 4 contact the track bed surface. Using a track lifter and pry bar, the rail end of the new rail 12 is moved above the new rail slide plate 2. Two new rail fastening plates 10 are placed on both sides of the new rail 12 and fixed using the horizontal adjusting bolts 8 and the new rail fixing bolts 9. The lateral position of the new rail 12 is adjusted by adjusting the length difference of the two lateral adjusting bolts 8; the height of the rail end of the new rail 12 can be adjusted by simultaneously adjusting the vertical adjusting bolts 1-3 and 2-4 in the same direction; the deflection angle of the new rail 12 can be adjusted by adjusting the height difference of the vertical adjusting bolts 1-3 and 2-4; when the height adjustment is difficult, a height adjustment shim can be added between the new rail 12 and the new rail slide plate 2 to assist in the adjustment; when the deflection angle adjustment is difficult, a slope shim can be added between the new rail 12 and the new rail slide plate 2 to assist in the adjustment, so as to facilitate the alignment of the rail end of the new rail 12.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rail alignment device suitable for welding long rails in subway sections, comprising a main tooling frame (1), characterized in that: The tooling main frame (1) has two slide rails (11) at its top. A new rail slide plate (2) is slidably connected to the top of the tooling main frame (1). A vertical adjustment bolt (3) is threadedly connected to the inner wall of the tooling main frame (1). A vertical adjustment bolt (4) is threadedly connected to the right side of the tooling main frame (1). A new rail (12) is placed at the top of the new rail slide plate (2). Two new rail fasteners (10) are slidably connected to the top of the new rail slide plate (2). Multiple new rail fixing bolts (9) are threadedly connected to the inner wall of the new rail slide plate (2). A horizontal adjustment bolt (8) is threadedly connected to the top of the new rail fastener (10). An insulation component is provided on the left side of the tooling main frame (1).
2. The rail alignment device for long rail welding in subway sections according to claim 1, characterized in that: An insulating pad (5) is installed at the top of the main frame (1). An in-service old rail (13) is placed on the inner wall of the insulating pad (5). An in-service rail fastening plate (6) is slidably connected to the outer wall of the main frame (1). A plurality of in-service rail fixing bolts (7) are threadedly connected to the inner wall of the main frame (1).
3. The rail alignment device for long rail welding in subway sections according to claim 1, characterized in that: The new rail fastener (10) is slidably connected to the outer wall of the new rail (12), and a plurality of the new rail fixing bolts (9) are slidably connected to the outer wall of the new rail fastener (10).
4. The rail alignment device for long rail welding in subway sections according to claim 1, characterized in that: The lateral adjusting bolt (8) is threadedly connected to the inner wall of the new rail buckle plate (10) and contacts the new rail (12).
5. A rail alignment device for welding long rails in subway sections according to claim 1, characterized in that: The first vertical adjusting bolt (3) is threadedly connected to the inner wall of the main frame (1) of the tooling and in contact with the track bed surface. The second vertical adjusting bolt (4) is threadedly connected to the inner wall of the main frame (1) of the tooling and in contact with the track bed surface.
6. A rail alignment device for long rail welding in subway sections according to claim 2, characterized in that: The in-service rail fastening plate (6) is slidably connected to the outer wall of the insulating gasket (5), and a plurality of the in-service rail fixing bolts (7) are slidably connected to the outer wall of the in-service rail fastening plate (6).
7. A rail alignment device for long rail welding in subway sections according to claim 1, characterized in that: The new track slide (2) is slidably connected to the inner wall of the slide (11).