Track laying device for subway engineering construction
By using automated clamping components and laser-assisted positioning devices, the problem of manual operation in rail clamping and transportation has been solved, achieving efficient and safe rail laying and reducing construction costs and risks.
Patent Information
- Application Number
- CN202520554295.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing subway construction projects, the manual operation of rail clamping and transportation consumes a lot of manpower, it is difficult to accurately clamp rails of different specifications and there is a risk of collision and damage. The lack of automated control leads to high construction costs and poor safety.
The system employs an automated clamping assembly, including a second electric push rod, connecting rod, connecting block, and clamping components. It utilizes a third motor to drive the screw for precise clamping, combined with laser-assisted positioning, a four-wheel drive moving module, and an electric push rod adjustment device to achieve efficient and flexible rail transport and laying.
It enables automated clamping and movement of steel rails, reducing labor intensity, improving construction safety and precision, adapting to complex site requirements, and enhancing construction efficiency and quality.
Smart Images

Figure CN223936917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of subway construction technology, and in particular to a track laying device for subway construction. Background Technology
[0002] Rail transit, as a mode of transportation that runs on specific tracks, has become an indispensable part of modern society. It achieves efficient and rapid transportation of people and goods between or within cities by precisely laying tracks at predetermined locations and gradually connecting them to form a complete network. In the field of subway engineering construction, track laying is a crucial step, requiring extremely high complexity and precision.
[0003] Rail clamping and transport are crucial steps in track laying. Previously, rail clamping relied heavily on manual operation, using simple clamps for fixation. This method was not only labor-intensive but also struggled to ensure precise clamping of rails of different specifications, such as I-beams. During transport, the lack of automated vertical movement control prevented flexible adjustments to rail height according to construction needs, increasing the risk of rail damage from impacts and collisions, thus raising construction costs and safety risks. Utility Model Content
[0004] To overcome the aforementioned shortcomings, this utility model provides a track laying device for subway construction.
[0005] Technical Solution: A track laying device for subway construction includes a base, a support platform, a support frame, a first motor, rollers, a support plate, a second electric push rod, connecting rods, connecting blocks, and clamping components. Two support platforms are provided, each rotatably connected to a base. A first motor is symmetrically mounted on the bottom of the base. The first motor is a dual-output shaft motor, with its front and rear output shafts connected to rollers via couplings. A support frame is connected to the top left side of the support platform, and a support plate is connected to the upper left side of the support frame. Second electric push rods are symmetrically mounted on the support plate, and connecting rods are connected to the telescopic rods of the second electric push rods. A connecting block is connected between the bottoms of each pair of corresponding connecting rods, and a clamping component for clamping the rails is provided at the bottom of the connecting block.
[0006] In one embodiment, the clamping assembly includes a third motor, a screw, and a clamping block. The third motor is installed in the center of the connecting block. The third motor is also a dual-axis motor. Screws are connected to the output shafts on its left and right sides, respectively. The screws are rotatably connected to the inside of the connecting block. Each screw is threadedly connected to a clamping block. The clamping block is slidably connected to the inside of the connecting block, and the clamping block is L-shaped.
[0007] In one embodiment, an anti-slip rubber pad is provided on the inner side of the clamping block.
[0008] In one embodiment, the system further includes a first electric push rod and a frame. The first electric push rods are symmetrically installed on the top right side of the support platform. The two first electric push rods on the same side are connected to the frame, which is located outside the support platform.
[0009] In one embodiment, a second motor is also included, which is installed inside the support platform and whose output shaft is connected to the base.
[0010] In one embodiment, a laser is also included, with the laser mounted at the center of the bottom of the connecting block.
[0011] The present invention has the following advantages: 1. The second electric push rod, connecting rod, connecting block and clamping assembly realize the automated clamping and up-and-down movement of the rail. The third motor in the clamping assembly drives the screw, so that the L-shaped clamping block accurately clamps the I-beam rail. No manual handling is required, reducing labor intensity and improving construction safety and accuracy.
[0012] 2. The device adopts a four-wheel drive mobile module, with two dual-output shaft first motors driving the rollers to achieve efficient movement. At the same time, through the coordinated operation of the first electric push rod, the frame and the second motor, the horizontal angle of the rollers can be easily adjusted, the movement direction of the device can be flexibly controlled, adapt to the needs of complex construction sites, and improve construction efficiency.
[0013] 3. The laser installed at the bottom of the connecting block emits a laser to help determine whether the clamping block is within the clamping range when the device is aligned with the rail, providing a reliable benchmark for precise clamping, improving construction accuracy, and ensuring the quality of track laying. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the base, support platform, and support frame of this utility model.
[0016] Figure 3 This is a cross-sectional view of the support platform component of this utility model.
[0017] Figure 4 This is a cross-sectional view of the connecting block component of this utility model.
[0018] In the attached diagram, the following are the reference numerals: 1. Rail, 2. Base, 3. Support platform, 4. Support frame, 5. First motor, 6. Roller, 7. Second motor, 8. First electric push rod, 9. Frame, 10. Support plate, 11. Second electric push rod, 12. Connecting rod, 13. Connecting block, 14. Third motor, 15. Screw, 16. Clamping block, 17. Laser. Detailed Implementation
[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.
[0020] Example: A track laying device for subway construction, such as... Figure 1 , Figure 2 and Figure 4 As shown, the device includes a base 2, a support platform 3, a support frame 4, a first motor 5, rollers 6, a support plate 10, a second electric push rod 11, a connecting rod 12, a connecting block 13, and a clamping assembly. Two support platforms 3 are provided, each rotatably connected to the base 2 at its bottom. The first motor 5 is symmetrically mounted on the bottom of the base 2 via bolts. The first motor 5 is a dual-output shaft motor, with its front and rear output shafts connected to the rollers 6 via couplings, forming a four-wheel drive mobile module. When the first motor 5 is started, its output shaft rotates, thereby driving the rollers 6 to rotate. The rotation of the rollers 6 drives the entire device to move smoothly on the ground, enabling flexible transport of the device at the construction site. The two sets of four-wheel drive mobile modules can be flexibly adjusted in position according to the length of the steel rail 1. The support platform 3 has a support frame 4 connected to its top left side. The support plate 10 is bolted to the upper left side of the support frame 4. The support plate 10 has second electric push rods 11 symmetrically installed on its left and right sides. The telescopic rods of the second electric push rods 11 are connected to connecting rods 12. A connecting block 13 is welded between the bottom of each pair of corresponding connecting rods 12. The bottom of the connecting block 13 is provided with a clamping assembly for clamping the rail 1. The clamping assembly can reliably clamp the rail 1, providing the necessary conditions for the device to transfer the rail 1. By controlling the extension or retraction of the telescopic rods of the second electric push rods 11, the connecting rods 12, connecting blocks 13 and clamping assemblies can be driven to move in the vertical direction. During the transfer of the rail 1, the raising and lowering operations of the rail 1 can be flexibly realized.
[0021] like Figure 4 As shown, the clamping assembly includes a third motor 14, a screw 15, and clamping blocks 16. The third motor 14 is bolted to the center of the connecting block 13. This third motor 14 is also a dual-axis motor, with screws 15 connected to its left and right output shafts respectively. The screws 15 are rotatably connected to the inside of the connecting block 13, and clamping blocks 16 are threaded onto each screw 15. The clamping blocks 16 are slidably connected to the inside of the connecting block 13. Anti-slip rubber pads are provided on the inner side of the clamping blocks 16 to buffer and improve the coefficient of friction. The clamping blocks 16 are L-shaped. By controlling the position of the control device, the two clamping blocks 16 are aligned with the rail 1 and located outside the rail 1. Then, the third motor 14 is started, and the output shaft of the third motor 14 rotates, driving the screw 15 to rotate synchronously, thereby moving the clamping blocks 16 closer to or further away from each other. When the clamping blocks 16 move to clamp the rail 1, the rail 1 can be transferred to the target location for laying work, realizing precise clamping and efficient transfer of the I-beam rail 1.
[0022] like Figure 3 As shown, it also includes a second motor 7, a first electric push rod 8 and a frame 9. The second motor 7 is installed inside the support platform 3 by bolts. The output shaft of the second motor 7 is connected to the base 2. The first electric push rods 8 are symmetrically installed on the top right side of the support platform 3 by bolts. The two first electric push rods 8 on the same side are connected to the telescopic rods by the frame 9. The frame 9 is located outside the support platform 3.
[0023] When it is necessary to adjust the horizontal angle of roller 6 during the use of the device to control its movement direction, the following steps can be taken: First, start the first electric push rod 8 to shorten its telescopic rod, which will cause the frame 9 to move downwards until it gradually contacts the ground. As the frame 9 continues to move, the base 2 and support platform 3 can be raised as a whole, thereby causing roller 6 to lose contact with the ground. At this time, start the second motor 7, and the rotation of its output shaft will drive the base 2 to rotate horizontally, thereby causing roller 6 to rotate horizontally as a whole, realizing the adjustment of the orientation of roller 6. After the orientation adjustment of roller 6 is completed, turn off the second motor 7, and then control the telescopic rod of the first electric push rod 8 to extend and reset, causing the frame 9 to move upwards, so that roller 6 re-contacts the ground. Through the above operation, the movement direction of the device can be freely controlled.
[0024] like Figure 4 As shown, it also includes a laser 17. The laser 17 is installed in the middle of the bottom of the connecting block 13 by bolts. When using this device, the laser 17 is turned on and will emit a laser downward. During the process of aligning the direction of the control device with the rail 1 to be transferred, by observing the position of the laser on the rail 1, it is possible to determine whether the positions of the clamping blocks 16 on both sides are within the clamping range. The laser 17 plays an important role as an auxiliary reference here.
[0025] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.
Claims
1. A track laying device for subway construction, characterized in that, It includes a base (2), a support platform (3), a support frame (4), a first motor (5), a roller (6), a support plate (10), a second electric push rod (11), a connecting rod (12), a connecting block (13), and a clamping assembly. There are two support platforms (3), with the base (2) rotatably connected to the bottom of each platform. The first motor (5) is symmetrically installed on the bottom of the base (2). The first motor (5) is a dual-output shaft motor, and its front and rear output shafts are connected to the roller (6) through a coupling. The support frame (4) is connected to the top left of the support platform (3). The support plate (10) is connected to the upper left of the support frame (4). The second electric push rod (11) is symmetrically installed on the support plate (10). The connecting rod (12) is connected to the telescopic rod of the second electric push rod (11). A connecting block (13) is connected between the bottoms of each pair of corresponding connecting rods (12). The bottom of the connecting block (13) is provided with a clamping assembly for clamping the rail (1).
2. The track laying device for subway construction as described in claim 1, characterized in that, The clamping assembly includes a third motor (14), a screw (15) and a clamping block (16). The third motor (14) is installed in the middle of the connecting block (13). The third motor (14) is also a dual-axis motor. The output shafts on its left and right sides are respectively connected to the screw (15). The screw (15) is rotatably connected to the inside of the connecting block (13). Each screw (15) is threadedly connected to the clamping block (16). The clamping block (16) is slidably connected to the inside of the connecting block (13), and the clamping block (16) is L-shaped.
3. The track laying device for subway construction as described in claim 2, characterized in that, The inner side of the clamp (16) is provided with an anti-slip rubber pad.
4. The track laying device for subway construction as described in claim 3, characterized in that, It also includes a first electric push rod (8) and a frame (9). The first electric push rod (8) is symmetrically installed on the right side of the top of the support platform (3). The two first electric push rods (8) on the same side are connected to the telescopic rods of the frame (9). The frame (9) is located outside the support platform (3).
5. The track laying device for subway construction as described in claim 4, characterized in that, It also includes a second motor (7), which is installed inside the support platform (3). The output shaft of the second motor (7) is connected to the base (2).
6. The track laying device for subway construction as described in claim 5, characterized in that, It also includes a laser (17), and the laser (17) is installed in the middle of the bottom of the connecting block (13).