A ballastless track slab laying auxiliary device
By combining a screw, worm gear, hydraulic cylinder, and moving wheel, the problem of inconvenient operation and difficult movement of the ballastless track slab laying device during the alignment process is solved, realizing rapid alignment and convenient movement of the track slab and improving laying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUJIAN CHANGTONG RAILWAY ENG CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-26
AI Technical Summary
Existing ballastless track slab laying devices are inconvenient to operate during alignment, prone to excessive pushing distance deviations, and lack mobility, resulting in low efficiency.
It adopts a combination structure of lead screw, worm gear, dual-axis motor, rotating shaft, shaft frame, worm gear, sleeve block, hydraulic cylinder and push plate. The hydraulic control system realizes the precise alignment and movement of the track plate. Combined with the design of moving wheels and hydraulic cylinders, it realizes the convenient movement of the device.
It enables rapid alignment of track slabs, avoids excessive deviation due to excessive pushing distance, improves laying efficiency, and allows for easy movement of the device after use, enhancing operational convenience and efficiency.
Smart Images

Figure CN224412221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of track slab laying auxiliary devices, specifically a ballastless track slab laying auxiliary device. Background Technology
[0002] Ballastless track refers to a track structure that uses an integral foundation of concrete, asphalt mixture, etc., instead of loose gravel track. It is also known as ballastless track and is the world's most advanced track technology. Compared with ballasted track, ballastless track avoids ballast splashing, has better smoothness, stability, service life, durability, and requires less maintenance.
[0003] Currently, during the laying of ballastless track slabs, there is a certain deviation between the newly laid track slabs and the existing ones. This necessitates adjusting the flatness of the track slabs to prevent misalignment. Existing ballastless track slab alignment devices can only push the track slab from one side for alignment, which inevitably leads to excessive pushing distances during operation, requiring adjustment from the other side. This makes the overall operation inconvenient and inefficient, thus presenting certain shortcomings. Furthermore, existing track slab laying auxiliary devices often require fixing during use and lack mobility, making them difficult to move during and after use. Therefore, we propose a ballastless track slab laying auxiliary device. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for laying ballastless track slabs, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for laying ballastless track slabs, comprising a base, an installation frame fixedly mounted on the top of one side of the base, an installation groove formed on the inner side of the installation frame, lead screws rotatably mounted on both sides of the installation groove, one end of each lead screw extending to the outer side of the top of the installation frame and fixedly mounted with a worm gear, a dual-axis motor fixedly mounted on the top of the installation frame, a rotating shaft fixedly mounted on the output end of the dual-axis motor, two shaft brackets fixedly mounted on the top of the installation frame, the rotating shaft rotatably connected to the shaft brackets, a worm gear fixedly mounted on the outer side of the rotating shaft, the worm gear cooperating with the worm gear, a sleeve block threaded onto the outer side of the lead screw, a first mounting plate fixedly mounted on one side of the sleeve block, two first hydraulic cylinders fixedly mounted inside the first mounting plate, a first push plate fixedly mounted on the output end of the first hydraulic cylinders, a beam plate fixedly mounted on the top of the first mounting plate, a second mounting plate fixedly mounted on one side of the beam plate, two second hydraulic cylinders fixedly mounted inside the second mounting plate, and a second push plate fixedly mounted on the output end of the second hydraulic cylinders.
[0006] Preferably, two third hydraulic cylinders are fixedly installed on both sides of the top of the base, and an L-shaped support rod is fixedly installed at the output end of the third hydraulic cylinder. A moving wheel is fixedly installed at the bottom of the L-shaped support rod, and two through slots are opened inside both sides of the base.
[0007] Preferably, fixing nails are inserted into the interior of both sides of the base, and holes that mate with the fixing nails are opened in the interior of both sides of the base.
[0008] Preferably, both the L-shaped support rod and the movable wheel are fitted with the through groove.
[0009] Preferably, the top of the mounting frame is provided with a bearing that engages with the lead screw.
[0010] Preferably, the sleeve has a hole inside that mates with the lead screw.
[0011] This utility model provides an auxiliary device for laying ballastless track slabs, which has the following beneficial effects:
[0012] 1. This ballastless track slab laying auxiliary device, through the configuration of a lead screw, worm gear, dual-axis motor, rotating shaft, shaft frame, worm, sleeve block, first mounting plate, first hydraulic cylinder, first push plate, beam plate, second mounting plate, second hydraulic cylinder, and second push plate, can assist in aligning track slabs of different heights. During alignment, based on the offset position of the track slab, the second hydraulic cylinder can be activated to push the second push plate to a certain position to position the track slab. Subsequently, the first hydraulic cylinder can be activated to push the first push plate and the track slab to move, thus quickly aligning them. There will be no deviation due to excessive pushing distance, which would affect the laying efficiency. It is more convenient and faster to use.
[0013] 2. The ballastless track slab laying auxiliary device, through the setting of a third hydraulic cylinder, L-shaped frame rod, moving wheels and through groove, can be used to support the entire device after the device is used. This is achieved by opening the third hydraulic cylinder to retract it, thereby driving the L-shaped frame rod and moving wheels to move down. The device can also be moved after the moving wheels are grounded. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the back structure of this utility model;
[0016] Figure 3 This is a partial side view of the structure of this utility model;
[0017] Figure 4 This utility model Figure 2 Enlarged view of point A in the image.
[0018] In the diagram: 1. Base; 2. Mounting frame; 3. Mounting slot; 4. Lead screw; 5. Worm gear; 6. Dual-axis motor; 7. Rotating shaft; 8. Shaft bracket; 9. Worm gear; 10. Sleeve block; 11. First mounting plate; 12. First hydraulic cylinder; 13. First push plate; 14. Beam plate; 15. Second mounting plate; 16. Second hydraulic cylinder; 17. Second push plate; 18. Third hydraulic cylinder; 19. L-shaped support rod; 20. Moving wheel; 21. Through slot; 22. Fixing nail. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figures 1 to 4 This utility model provides a technical solution: an auxiliary device for laying ballastless track slabs, including a base 1, an installation frame 2 fixedly installed on the top of one side of the base 1, an installation groove 3 opened on the inner side of the installation frame 2, and lead screws 4 rotatably installed on both sides inside the installation groove 3. One end of each lead screw 4 extends to the outer side of the top of the installation frame 2 and is fixedly installed with a worm gear 5. A bearing that cooperates with the lead screw 4 is provided inside the top of the installation frame 2. A dual-axis motor 6 is fixedly installed on the top of the installation frame 2, and a rotating shaft 7 is fixedly installed on the output end of the dual-axis motor 6. Two shaft brackets 8 are fixedly installed on the top of the installation frame 2, and the rotating shaft 7 is rotatably connected to the shaft brackets 8. A worm gear 9 is fixedly installed on the outer side of the rotating shaft 7. In conjunction with the worm gear 5, a sleeve block 10 is threaded on the outer side of the lead screw 4. The sleeve block 10 has a hole that mates with the lead screw 4. A first mounting plate 11 is fixedly mounted on one side of the sleeve block 10. Two first hydraulic cylinders 12 are fixedly mounted inside the first mounting plate 11. A first push plate 13 is fixedly mounted on the output end of the first hydraulic cylinder 12. A beam plate 14 is fixedly mounted on the top of the first mounting plate 11. A second mounting plate 15 is fixedly mounted on one side of the beam plate 14. Two second hydraulic cylinders 16 are fixedly mounted inside the second mounting plate 15. A second push plate 17 is fixedly mounted on the output end of the second hydraulic cylinder 16. Rubber pads are provided on one side of both the first push plate 13 and the second push plate 17.
[0021] Two third hydraulic cylinders 18 are fixedly installed on both sides of the top of the base 1. An L-shaped support rod 19 is fixedly installed at the output end of the third hydraulic cylinder 18. A movable wheel 20 is fixedly installed at the bottom of the L-shaped support rod 19. Two through slots 21 are opened inside both sides of the base 1. The L-shaped support rod 19 and the movable wheel 20 are both engaged with the through slots 21.
[0022] Fixing nails 22 are inserted into the interior of both sides of the base 1. Holes that mate with the fixing nails 22 are opened inside the interior of both sides of the base 1. The fixing nails 22 are used to fix the base 1 at the place of use.
[0023] The base 1 is equipped with a hydraulic control system on its top. The first hydraulic cylinder 12, the second hydraulic cylinder 16 and the third hydraulic cylinder 18 are all controlled by the hydraulic control system. The hydraulic control system is located on the base 1 and can be used to counterweight the base 1 to ensure its movement and stability during use.
[0024] In summary, this ballastless track slab laying auxiliary device, when in use, after the device is moved to the location, the hydraulic control system controls the third hydraulic cylinder 18 to push upward, thereby pushing the L-shaped frame rod 19 and the moving wheel 20 upward and grounding the base 1. Then, the fixing nail 22 is inserted into the hole in the base 1 and pushed into the ground to fix the base 1. Then, the auxiliary alignment can begin. First, the dual-axis motor 6 is turned on to drive the rotating shaft 7 and the worm gear 9 to rotate. After the worm gear 9 meshes with the worm wheel 5, it drives the lead screw 4 to rotate, thereby driving the sleeve block 10 to move downward through the lead screw 4, so that the first push plate 13 and the second push plate 17 are respectively displaced to both sides of the track slab. Then, according to the deviation direction of the track slab, the second hydraulic cylinder 16 is first turned on to push the second push plate 17 to a certain position to position the track slab. Then, by turning on the first hydraulic cylinder 12 to push the first push plate 13 and the track slab to move, it can be quickly aligned. It is convenient and fast to use.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An auxiliary device for laying ballastless track slabs, comprising a base (1), characterized in that: A mounting frame (2) is fixedly installed on the top of one side of the base (1). A mounting groove (3) is provided on the inner side of the mounting frame (2). Screws (4) are rotatably installed on both sides inside the mounting groove (3). One end of each screw (4) extends to the outer side of the top of the mounting frame (2) and a worm gear (5) is fixedly installed thereon. A dual-axis motor (6) is fixedly installed on the top of the mounting frame (2). A rotating shaft (7) is fixedly installed on the output end of the dual-axis motor (6). Two shaft brackets (8) are fixedly installed on the top of the mounting frame (2). The rotating shaft (7) is rotatably connected to the shaft bracket (8). A worm gear (9) is fixedly installed on the outer side of the rotating shaft (7). The worm gear (9) is connected to the shaft bracket (8). The worm gear (5) is engaged, and a sleeve block (10) is threaded on the outer side of the lead screw (4). A first mounting plate (11) is fixedly installed on one side of the sleeve block (10). Two first hydraulic cylinders (12) are fixedly installed inside the first mounting plate (11). A first push plate (13) is fixedly installed at the output end of the first hydraulic cylinder (12). A beam plate (14) is fixedly installed on the top of the first mounting plate (11). A second mounting plate (15) is fixedly installed on one side of the beam plate (14). Two second hydraulic cylinders (16) are fixedly installed inside the second mounting plate (15). A second push plate (17) is fixedly installed at the output end of the second hydraulic cylinder (16).
2. The ballastless track slab laying auxiliary device according to claim 1, characterized in that: Two third hydraulic cylinders (18) are fixedly installed on both sides of the top of the base (1). An L-shaped support rod (19) is fixedly installed at the output end of the third hydraulic cylinder (18). A moving wheel (20) is fixedly installed at the bottom of the L-shaped support rod (19). Two through slots (21) are opened inside both sides of the base (1).
3. The ballastless track slab laying auxiliary device according to claim 1, characterized in that: Fixing nails (22) are inserted into the interior of both sides of the base (1), and holes that cooperate with the fixing nails (22) are opened in the interior of both sides of the base (1).
4. The ballastless track slab laying auxiliary device according to claim 2, characterized in that: The L-shaped support rod (19) and the moving wheel (20) are both fitted with the through groove (21).
5. The ballastless track slab laying auxiliary device according to claim 1, characterized in that: The mounting frame (2) has a bearing inside its top that cooperates with the lead screw (4).
6. The ballastless track slab laying auxiliary device according to claim 1, characterized in that: The sleeve (10) has a hole inside that mates with the lead screw (4).