Railway track maintenance rail fixing and reinforcing device
By designing an adjustable rail fixing device, the problems of insufficient versatility and environmental adaptability of existing devices are solved, achieving stable clamping of different rails and ground surfaces, and improving the safety and efficiency of railway line maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY HOHHOT BUREAU GROUP CO LTD BAOTOU PUBLIC WORKS SECTION
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
The existing rail fixing and reinforcement devices for railway line maintenance lack versatility, cannot adapt to rails of different sizes, have poor environmental adaptability, and are difficult to cope with differences in sleeper spacing and changes in track bed slope, resulting in poor stability.
A device comprising a crossbeam, a vertical pole, a bidirectional screw, a knob, a positioning component, and a support component was designed. The position of the vertical pole and the support plate can be adjusted by the knob to achieve clamping and limiting of steel rails of different sizes and to adapt to uneven ground. High-strength and lightweight materials and a damping shaft are used to improve stability.
This improves the versatility and stability of the device, enabling it to adapt to rails of different sizes and uneven ground, ensuring the stability and safety of the rails during maintenance.
Smart Images
Figure CN224531362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail fixing, and in particular to a rail fixing and reinforcement device for railway line maintenance. Background Technology
[0002] Rail fixing is a temporary or auxiliary fastening method used in railway line maintenance, employing specialized equipment to secure rails. Its purpose is to limit rail displacement, vibration, or deformation during maintenance, ensuring operational safety and maintenance quality. Addressing rail damage, loose joints, and weld defects, it utilizes the mechanical force of the fixing device to create a stable constraint, counteracting stresses generated by train loads and track vibrations, preventing deterioration of the rail's condition during maintenance. It also provides a stable foundation for track gauge adjustment and ballast maintenance. Once maintenance is complete, the device can be removed without affecting normal line operation, making it a crucial means of maintaining track structural stability during maintenance.
[0003] However, current rail fixing and reinforcement devices for railway line maintenance have the following shortcomings: First, they lack versatility, cannot adapt to rails of different sizes, and have a limited clamping and limiting range, making it difficult to meet the reinforcement needs of various rail types. Second, they have poor environmental adaptability, cannot cope with differences in sleeper spacing and changes in ballast slope, and their stability during reinforcement is poor, making them susceptible to changes in track conditions. In response to this technical problem, this application proposes a rail fixing and reinforcement device for railway line maintenance. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rail fixing and reinforcement device for railway line maintenance. The device aims to clamp and limit rails of different sizes, improve its versatility, adapt to differences in sleeper spacing and track bed slope, and enhance its stability during reinforcement.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A rail fixing and reinforcement device for railway line maintenance includes a crossbeam with two uprights slidably connected inside. A bidirectional screw is rotatably connected inside the crossbeam, and the uprights are threaded to the outer wall of the bidirectional screw. A first knob is rotatably connected to the left side of the crossbeam via a damping shaft. The left end of the bidirectional screw is fixedly connected to the inside of the first knob. A positioning component is provided on one side of the upright to clamp the rail, and a support component is provided on the other side of the upright to support the reinforcement device.
[0006] Furthermore, the positioning assembly includes a rotating rod rotatably connected to one side of the upright, one end of the rotating rod being fixedly connected to an eccentric disk, and a rubber ring being fixedly connected to the outer wall of the eccentric disk.
[0007] Furthermore, a gear is fixedly connected to the outer wall of the rotating rod, and a rack is slidably connected to the inside of the upright rod. The rack and the gear mesh with each other, and the gear is located inside the upright rod.
[0008] Furthermore, the upright is rotatably connected to a first threaded rod, the rack is threaded to the outer wall of the first threaded rod, and the top side of the upright is rotatably connected to a second knob via a damping shaft, with the top end of the first threaded rod fixedly connected to the inside of the second knob.
[0009] Furthermore, the support assembly includes a groove formed on the other side of the upright, a slider is slidably connected inside the groove, a second threaded rod is rotatably connected inside the groove, and the slider is threadedly connected to the outer wall of the second threaded rod.
[0010] Furthermore, a support plate is rotatably connected to the bottom end of the upright, and the support plate and the slider are connected by a connecting rod. One end of the connecting rod is rotatably connected to one side of the support plate, and the other end of the connecting rod is rotatably connected to the inside of the slider.
[0011] Furthermore, a third knob is rotatably connected to the top side of the slide via a damping shaft, the top end of the second threaded rod is fixedly connected to the inside of the third knob, and a rubber pad is fixedly connected to the bottom side of the support plate.
[0012] This utility model has the following beneficial effects: 1. In this utility model, the first threaded rod is rotated by rotating the second knob, which drives the rack to slide. The rack drives the rotating rod to rotate through the gear, which in turn drives the eccentric disc to rotate. This adjusts the distance between the edge of the eccentric disc and the top side of the rail, allowing the eccentric disc to fit against the top side of the rail. This enables the device to clamp and limit rails of different sizes, improving the versatility of the device.
[0013] 2. In this utility model, the second threaded rod is rotated by rotating the third knob, which drives the slider to slide up and down. The slider drives the support plate to rotate at the bottom of the upright through the connecting rod, so that the support plate can abut against the ground and the angle of the support plate can be adjusted to adapt to various uneven ground. This allows the device to adapt to differences in sleeper spacing and changes in track bed slope, while improving the stability of the device during reinforcement. Attached Figure Description
[0014] Figure 1This is a perspective view of a rail fixing and reinforcement device for railway line maintenance proposed in this utility model; Figure 2 This is a side view of a rail fixing and reinforcement device for railway line maintenance proposed in this utility model; Figure 3 This is a schematic diagram of the internal structure of the upright of a rail fixing and reinforcement device for railway line maintenance proposed in this utility model; Figure 4 This is a schematic diagram of the support leg structure of a rail fixing and reinforcement device for railway line maintenance proposed in this utility model.
[0015] Legend: 1. First knob; 2. Third knob; 3. Two-way screw; 4. Crossbeam; 5. Second knob; 6. Support plate; 7. Eccentric disc; 8. Rubber ring; 9. Vertical rod; 10. Connecting rod; 11. Slider; 12. Rubber pad; 13. Rotating rod; 14. Gear; 15. Rack; 16. First threaded rod; 17. Second threaded rod. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Reference Figures 1-3This utility model provides an embodiment of a rail fixing and reinforcement device for railway line maintenance, comprising a crossbeam 4, two uprights 9 slidably connected inside the crossbeam 4, a bidirectional screw 3 rotatably connected inside the crossbeam 4, the uprights 9 being threaded to the outer wall of the bidirectional screw 3, a first knob 1 rotatably connected to the left side of the crossbeam 4 via a damping shaft, the left end of the bidirectional screw 3 being fixedly connected inside the first knob 1, and rotating the first knob 1 causes the bidirectional screw 3 to rotate, thereby driving the two uprights 9 to slide in relative or opposite directions, thus limiting the rails of different widths. A rotating rod 13 is rotatably connected to one side of the upright 9. An eccentric disk 7 is fixedly connected to one end of the rotating rod 13. A rubber ring 8 is fixedly connected to the outer wall of the eccentric disk 7. A gear 14 is fixedly connected to the outer wall of the rotating rod 13. A rack 15 is slidably connected inside the upright 9. The rack 15 and the gear 14 mesh with each other. The gear 14 is located inside the upright 9. A first threaded rod 16 is rotatably connected inside the upright 9. The rack 15 is threaded onto the outer wall of the first threaded rod 16. A second knob 5 is rotatably connected to the top side of the upright 9 via a damping shaft. The top end of the first threaded rod 16 is fixedly connected to the inside of the second knob 5. Rotating the second knob 5 enables... The first threaded rod 16 rotates, causing the rack 15 to slide. This causes the rack 15 to drive the rotating rod 13 to rotate via the gear 14. The rotating rod 13 then rotates the eccentric disk 7, adjusting the distance between the edge of the eccentric disk 7 and the top side of the rail. This allows the eccentric disk 7 to fit against the top side of the rail, enabling the device to clamp and limit rails of different sizes, improving its versatility. The rubber ring 8 prevents direct contact between the eccentric disk 7 and the rail, thus avoiding damage. It also increases the friction between the eccentric disk 7 and the rail, further enhancing the clamping stability.
[0018] Reference Figure 1 , Figure 2 and Figure 4A groove is provided on the other side of the upright 9. A slider 11 is slidably connected inside the groove, and a second threaded rod 17 is rotatably connected inside the groove. The slider 11 is threaded onto the outer wall of the second threaded rod 17. A support plate 6 is rotatably connected to the bottom end of the upright 9. The support plate 6 and the slider 11 are connected by a connecting rod 10. One end of the connecting rod 10 is rotatably connected to one side of the support plate 6, and the other end is rotatably connected to the inside of the slider 11. A third knob 2 is rotatably connected to the top side of the groove via a damping shaft. The top end of the second threaded rod 17 is fixedly connected to the inside of the third knob 2. A rubber pad 12 is fixedly connected to the bottom side of the support plate 6. Rotating the third knob 2 causes the second threaded rod 17 to rotate, thereby driving the slider 11 to move up and down. The sliding mechanism allows the slider 11 to rotate the support plate 6 at the bottom of the upright 9 via the connecting rod 10. This allows the support plate 6 to contact the ground and adjust its angle to adapt to various uneven surfaces. This enables the device to adapt to differences in sleeper spacing and track bed slope, while also improving the stability of the device during reinforcement. The rubber pad 12 further enhances the friction between the support plate 6 and the ground, further improving stability. The entire device is made of high-strength, lightweight materials to reduce overall weight and facilitate carrying by workers. Additionally, the damping shaft of this device is of a high-damping type to prevent the rotation of the bidirectional screw 3, the first threaded rod 16, and the second threaded rod 17, which could cause the device to loosen.
[0019] Working principle: First, move the device to the rail that needs reinforcement, positioning the two uprights 9 on either side of the rail. Then, rotate the first knob 1 to rotate the double-acting screw 3, causing it to drive the two uprights 9 to slide relative to each other, allowing them to slide towards the rail. During this step, hold the crossbeam 4 to prevent the uprights 9 from contacting the ground and obstructing their sliding. Once the uprights 9 are in contact with both sides of the rail, turn the crossbeam 4 so that the uprights 9 fall onto the sleepers supporting the rail. Then, rotate the second knob 5 to rotate the first threaded rod 16, causing it to drive the rack 15 to slide. This causes the rack 15 to drive the rotating rod 13 through the gear 14, causing the rotating rod 13 to carry the eccentric disc 7 into the rail. The eccentric disc 7 is rotated to adjust the distance between its edge and the top of the rail, allowing it to fit against the rail and clamp it in place, thus providing reinforcement and preventing rail deviation during maintenance. Then, the third knob 2 is rotated to make the second threaded rod 17 rotate, driving the slider 11 to slide up and down. The slider 11, through the connecting rod 10, causes the support plate 6 to rotate at the bottom of the upright 9, bringing it into contact with the ground. The support plate 6, through the connecting rod 10, forms a diagonal brace with the slider 11, supporting the entire device and improving its stability. The rail can then be repaired. After repair, the process is repeated in reverse to remove the device from the rail.
[0020] 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 fixing and reinforcement device for railway line maintenance, characterized in that: The device includes a crossbeam (4), which has two vertical rods (9) slidably connected inside. The crossbeam (4) has a double-acting screw (3) rotatably connected inside. The vertical rods (9) are threaded to the outer wall of the double-acting screw (3). The left side of the crossbeam (4) is rotatably connected to a first knob (1) via a damping shaft. The left end of the double-acting screw (3) is fixedly connected inside the first knob (1). A positioning component is provided on one side of the vertical rod (9) to clamp the rail. A support component is provided on the other side of the vertical rod (9) to support the reinforcement device.
2. The rail fixing and reinforcement device for railway line maintenance according to claim 1, characterized in that: The positioning assembly includes a rotating rod (13) rotatably connected to one side of the upright (9), an eccentric disk (7) fixedly connected to one end of the rotating rod (13), and a rubber ring (8) fixedly connected to the outer wall of the eccentric disk (7).
3. The rail fixing and reinforcement device for railway line maintenance according to claim 2, characterized in that: A gear (14) is fixedly connected to the outer wall of the rotating rod (13), and a rack (15) is slidably connected inside the upright rod (9). The rack (15) and the gear (14) mesh with each other, and the gear (14) is located inside the upright rod (9).
4. The rail fixing and reinforcement device for railway line maintenance according to claim 3, characterized in that: The upright (9) is rotatably connected to a first threaded rod (16), and the rack (15) is threadedly connected to the outer wall of the first threaded rod (16). The top side of the upright (9) is rotatably connected to a second knob (5) via a damping shaft, and the top end of the first threaded rod (16) is fixedly connected to the inside of the second knob (5).
5. The rail fixing and reinforcement device for railway line maintenance according to claim 1, characterized in that: The support assembly includes a groove formed on the other side of the upright (9), a slider (11) is slidably connected inside the groove, and a second threaded rod (17) is rotatably connected inside the groove. The slider (11) is threadedly connected to the outer wall of the second threaded rod (17).
6. The rail fixing and reinforcement device for railway line maintenance according to claim 5, characterized in that: The bottom end of the upright (9) is rotatably connected to a support plate (6). The support plate (6) and the slider (11) are connected by a connecting rod (10). One end of the connecting rod (10) is rotatably connected to one side of the support plate (6), and the other end of the connecting rod (10) is rotatably connected to the inside of the slider (11).
7. A rail fixing and reinforcement device for railway line maintenance according to claim 6, characterized in that: The top side of the slide is rotatably connected to a third knob (2) via a damping shaft. The top end of the second threaded rod (17) is fixedly connected to the inside of the third knob (2). The bottom side of the support plate (6) is fixedly connected to a rubber pad (12).