Automatic track laying device for track traffic engineering construction

Abstract

The invention relates to the field of rail traffic engineering, and discloses an automatic rail laying device for rail traffic engineering construction, which comprises a front frame, a plurality of laying boxes are mounted on one side of the front frame, a rear frame is mounted on one sides of the laying boxes, a plurality of mounting blocks are fixedly connected to the inner wall of one laying box, and the mounting blocks are fixedly connected to the inner wall of the other laying box. An oil cylinder is installed on the sides, close to each other, of the two installation blocks, the output end of the oil cylinder is rotationally connected with a push rod, a positioning block is fixedly connected to the inner wall of the laying box, a communicating column is rotationally connected to the inner wall of the positioning block, a stress rod is fixedly connected to one side of the outer wall of the communicating column, and a stabilizing block is fixedly connected to the inner wall of the laying box. And one side of the stabilizing block is rotationally connected with an adjusting block. Through coordinated linkage of the clamping assembly and the conveying assembly, automatic grabbing, conveying and accurate placement of sleepers are achieved, dependence on manpower in the traditional track laying process is avoided, and the construction efficiency and the automation level are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit engineering, and in particular to an automatic track laying device for rail transit engineering construction. Background Art

[0002] Rail transit construction is an important support for urbanization and regional economic development. Its main task is to provide people with fast, safe and environmentally friendly transportation through scientific planning and efficient construction. Rail transit projects cover a variety of forms, from subways, light rails, high-speed rails to intercity railways, and are an important part of the modern integrated transportation system. With the improvement of global urbanization and the increase in population mobility, rail transit has been favored for its high transportation capacity, low environmental impact and high operating efficiency, and has become one of the core infrastructures to ease urban traffic pressure and promote economic development.

[0003] In rail transit project construction, track laying is a basic link, which is directly related to the safety and stability of train operation. The main contents of track laying include ballast shaping, sleeper placement, track connection and welding, etc.

[0004] Traditional construction methods mostly rely on manual or semi-mechanized operations. Although they can meet basic construction requirements, since track projects usually require long-distance, high-precision laying, traditional methods have obvious deficiencies in construction efficiency, laying accuracy, and adaptability to the construction environment. Especially in large-scale track construction, construction delays and quality deviations often occur. In addition, complex terrain and construction environments pose severe challenges to traditional construction methods. For example, untimely cleaning of ballast or debris will affect the accuracy of sleeper laying and the long-term stability of the track. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an automatic track laying device for rail transit engineering construction, which solves the problems of the prior art track laying technology relying on manual operation or semi-automatic equipment, low construction efficiency, insufficient precision, discontinuous material feeding and poor adaptability to the construction environment.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic track laying device for rail transit engineering construction, comprising a front frame, a plurality of laying boxes are installed on one side of the front frame, a rear frame is installed on one side of the plurality of laying boxes, the inner wall of one of the laying boxes is fixedly connected with a plurality of mounting blocks, a cylinder is installed on the adjacent side of two mounting blocks, a push rod is rotatably connected to the output end of the cylinder, a positioning block is fixedly connected to the inner wall of the laying box, a connecting column is rotatably connected to the inner wall of the positioning block, a force-bearing rod is fixedly connected to one side of the outer wall of the connecting column, a stabilizing block is fixedly connected to the inner wall of the laying box, an adjusting block is rotatably connected to one side of the stabilizing block, a moving rod is slidably connected to the inner wall of the adjusting block, a connecting rod is fixedly provided on the outer wall of the moving rod, a bearing plate is fixedly connected to the middle part of the outer wall of the connecting rod, a clamping assembly is provided on the inner wall of the bearing plate, a positioning assembly is provided on the inner wall of the laying box, a conveying assembly is provided on one side of the rear frame, and a scraping assembly is installed on the left side of the front frame.

[0007] Preferably, the connecting rod is rotatably connected to the inner walls of the plurality of force-bearing rods, and the push rod is fixedly connected to one side of the outer wall of the connecting column.

[0008] Preferably, the positioning assembly includes a limit block, which is fixedly connected to the middle part of the stabilizing block, the left end of the inner wall of the limit block is fixedly connected to a column, the top of the column is rotatably connected to a ball nut, the outer wall of the ball nut is fixedly connected to a first pulley, the inner wall of the ball nut is threadedly connected to a lead screw, the bottom of the lead screw is fixedly connected to a pressure ring, a spring is installed on the inner wall of the column, the right end of the inner wall of the limit block is rotatably connected to a gear, the top of the gear is fixedly connected to a second pulley, and one side of the limit block is slidably connected to an extrusion plate.

[0009] Preferably, the two extrusion plates are arranged opposite to each other, the extrusion plates are meshingly connected to the gears, and the outer walls of the first pulley and the second pulley are sleeved with belts.

[0010] Preferably, the clamping assembly comprises an electric telescopic rod, a plurality of the electric telescopic rods are mounted opposite to each other on the inner wall of the bearing plate, and the output ends of the electric telescopic rods are fixedly connected to the pulling plates.

[0011] Preferably, the conveying assembly includes multiple assembly plates, which are fixedly connected to the top of the rear frame, and the adjacent sides of two of the assembly plates are rotatably connected to multiple transmission shafts, and the outer walls of the multiple transmission shafts are sleeved with a plate conveyor belt, one end of one of the transmission shafts is fixedly connected to a third pulley, and wheels are installed on both sides of the rear frame, and the axis of one of the wheels is fixedly connected to a fourth pulley.

[0012] Preferably, the plurality of wheels are mounted on both sides of the front frame, and a towing hook is mounted on the front side of the front frame.

[0013] Preferably, the outer walls of the third pulley and the fourth pulley are sleeved with belts.

[0014] Preferably, the scraper assembly comprises a scraper plate, and a plurality of the scrapers are fixedly connected to opposite sides of the bottom of the front frame.

[0015] Preferably, the pressure ring is slidably connected to the inner wall of the column, and the spring is connected to the bottom of the pressure ring.

[0016] Working principle: When the staff uses this device for automatic track laying, they first connect it with the tractor through the trailer hook installed on the front frame. After the connection, the whole device is towed to the top of the gangue, and then the cylinder is opened after positioning. The push rod is pushed to displace the force-bearing rod connected to the connecting column through the output work of the cylinder. During the displacement process, the angle of the clamping assembly connected to the connecting rod will be first driven to change, and then the clamping surface of the bearing plate will be changed from downward to right, that is, corresponding to one side of the conveying assembly, through the cooperation between the moving rod connected to both sides of the connecting rod and the adjustment block, so as to open the electric telescopic rod used by the clamping assembly to complete the material collection of the sleepers on the top of the conveying assembly, and the force-bearing rod can be returned to the initial position, that is, the horizontal parallel state, by the retraction of the stabilizing block. At the same time, during the displacement process, the force-bearing rod changes the angle of the bearing plate from right to downward as the distance between the connecting rod and the adjustment block moves away, thereby correctly placing the sleepers on the top of the ballast stone.

[0017] During the above-mentioned pick-up and delivery function, when the force-bearing rod returns to the parallel state, it will drive the moving rod to contact the screw and provide downward pressure on the screw; when the screw is pressed on the inner wall of the column and slides, the position of the screw can be limited by the pressure ring, so that it remains vertical up and down, thereby squeezing the internal spring of the column, and in the process of the screw descending, the ball nut and the first pulley connected to it are driven to rotate through the threaded connection, and the belt synchronization gear set on the outer wall of the first pulley and the second pulley also rotates. When the gear rotates, the extrusion plate is periodically pushed out through the meshing connection, and when no pressure is applied to the screw, the stress rebound of the spring makes the screw return to the initial position, thereby achieving the effect of recovering the extrusion plate, thereby assisting the position of the previously laid sleepers to ensure that multiple groups of sleepers are arranged according to the positioning line.

[0018] During the movement of the entire device, as the wheels at the bottom of the rear frame rotate, the conveying assembly will be connected through the belt between the third pulley and the fourth pulley, gradually driving the transmission shaft to rotate, thereby achieving the effect of synchronous feeding.

[0019] During the overall operation of the device, the scraper assembly can discharge the road waste that blocks the wheels from passing through to the middle, thereby improving the passability and stability when the sleepers are placed.

[0020] The present invention provides an automatic track laying device for rail transit engineering construction, which has the following beneficial effects:

[0021] 1. The present invention realizes the automatic grabbing, conveying and precise placement of sleepers through the coordinated linkage of the clamping assembly and the conveying assembly, avoids the reliance on a large number of manual labor in the traditional track laying process, and improves the construction efficiency and automation level.

[0022] 2. The present invention adopts a linkage clamping design so that the sleepers can always remain in the center position of the load-bearing plate, thereby ensuring the laying accuracy and alignment effect of the materials, effectively improving the accuracy and stability of the sleeper laying, and reducing the rework rate that may be caused by deviation during the construction process.

[0023] 3. The present invention realizes the synchronous feeding function as the device moves forward by linkage with the device movement system, thereby significantly improving the construction efficiency, and is particularly suitable for large-scale and long-distance track laying scenarios.

[0024] 4. The present invention plastically treats the gangue of the track base through a gangue scraper assembly to ensure the flatness of the construction path, which not only improves the distribution of ballast stones, but also reduces the horizontal error when placing sleepers, significantly improving the laying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the bearing plate of the present invention;

[0028] Figure 4 It is a schematic diagram of the internal structure of the layout box of the present invention from a side view;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the load-bearing plate of the present invention;

[0030] Figure 6 It is an exploded schematic diagram of the limit block structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the cross-sectional structure of a column of the present invention;

[0032] Figure 8 It is a schematic diagram of the scraper structure of the present invention.

[0033] Among them, 1. front frame; 2. layout box; 3. rear frame; 4. installation block; 5. stabilizing block; 6. cylinder; 7. positioning block; 8. force rod; 9. push rod; 10. connecting column; 11. adjustment block; 12. motion rod; 13. connecting rod; 14. load-bearing plate; 15. electric telescopic rod; 16. pull plate; 17. limit block; 18. column; 19. lead screw; 20. pressure ring; 21. spring; 22. ball nut; 23. first pulley; 24. gear; 25. second pulley; 26. extrusion plate; 27. assembly plate; 28. transmission shaft; 29. ​​plate conveyor belt; 30. third pulley; 31. wheel; 32. fourth pulley; 33. scraper. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example:

[0036] Please refer to the attached Figure 2 -Attached Figure 4 The embodiment of the present invention provides an automatic track laying device for rail transit engineering construction, including a front frame 1, a plurality of laying boxes 2 are installed on one side of the front frame 1, a rear frame 3 is installed on one side of the plurality of laying boxes 2, the inner wall of one of the laying boxes 2 is fixedly connected with a plurality of mounting blocks 4, a cylinder 6 is installed on the adjacent side of the two mounting blocks 4, the output end of the cylinder 6 is rotatably connected with a push rod 9, the inner wall of the laying box 2 is fixedly connected with a positioning block 7, the inner wall of the positioning block 7 is rotatably connected with a connecting column 10, one side of the outer wall of the connecting column 10 is fixedly connected with a force-bearing rod 8, the inner wall of the laying box 2 is fixedly connected with a stabilizing block 5, one side of the stabilizing block 5 is rotatably connected with an adjusting block 11, the inner wall of the adjusting block 11 is slidably connected with a moving rod 12, the outer wall of the moving rod 12 is fixedly provided with a connecting rod 13, and the middle part of the outer wall of the connecting rod 13 is fixedly connected with a bearing plate 14; the connecting rod 13 is rotatably connected to the inner wall of the plurality of force-bearing rods 8, and the push rod 9 is fixedly connected to one side of the outer wall of the connecting column 10.

[0037] Specifically, a plurality of layout boxes 2 are fixedly installed on one side of the front frame 1, and a rear frame 3 is fixedly connected to the other side of the plurality of layout boxes 2. A plurality of mounting blocks 4 are fixedly installed on the inner wall of one of the layout boxes 2 by bolt fastening, and a cylinder 6 is hingedly installed on the adjacent side of the two mounting blocks 4. The output end of the cylinder 6 is rotatably connected to a push rod 9 through a joint bearing. The push rod 9 can realize smooth reciprocating motion under the action of the cylinder 6, thereby providing thrust.

[0038] The inner wall of the layout box 2 is fixedly connected with a positioning block 7, and the inner wall of the positioning block 7 is movably connected to the connecting column 10 through a rotating pin. A force-bearing rod 8 is fixedly welded to one side of the outer wall of the connecting column 10. The force-bearing rod 8 slides along the internal track of the positioning block 7 to complete the force transmission, thereby effectively transmitting the thrust to the downstream components, further optimizing the overall mechanical properties and movement accuracy of the device.

[0039] A stabilizing block 5 is fixedly installed on the top of the inner wall of the layout box 2 by welding, and one side of the stabilizing block 5 is connected to an adjusting block 11 by a rotating hinge. A sliding groove is provided on the inner wall of the adjusting block 11, and the inside of the sliding groove is slidably connected to the moving rod 12. The moving rod 12 can perform smooth linear motion under the restriction of the adjusting block 11, thereby realizing precise adjustment.

[0040] The outer wall of the movement rod 12 is fixedly mounted with a connecting rod 13 by riveting, and the middle portion of the connecting rod 13 is fixedly connected to the bearing plate 14 by a reinforcing rib structure.

[0041] The connecting rod 13 is rotatably connected to the inner wall of the multiple force-bearing rods 8 through a pin structure, and the front end of the push rod 9 is fixedly connected to the outer wall of the connecting column 10 through a thread. The connecting column 10 transmits power to the force-bearing rod 8 under the push of the push rod 9, so that the force-bearing rod 8 can drive the connecting rod 13 to complete the angle adjustment action. During the adjustment process, the connecting rod 13 realizes the dynamic change of the clamping direction through the supporting plate 14 connected to it, so as to adapt to the angle requirements of the conveying component or the laying area.

[0042] Through the cooperation among the stabilizing block 5, the adjusting block 11 and the moving rod 12, the angle adjustment of the supporting plate 14 is not only flexible but also has high positioning accuracy, which can avoid unnecessary errors in the process of clamping and placing, and ensure the quality of laying.

[0043] In addition, through the restraining effect of the stabilizing block 5 in the layout box 2, the movement of the force-bearing rod 8 can be accurately guided to the initial position, realizing the automatic reset function, and providing a stable starting state for subsequent cyclic operations. This design combines the characteristics of multi-point active connection and rigid support, making the device both reliable and flexible in construction.

[0044] Please refer to the attached Figure 5 The inner wall of the carrier plate 14 is provided with a clamping assembly; the clamping assembly includes an electric telescopic rod 15, a plurality of electric telescopic rods 15 are mounted opposite to the inner wall of the carrier plate 14, and the output end of the electric telescopic rod 15 is fixedly connected to a pull plate 16.

[0045] Specifically, a plurality of electric telescopic rods 15 are arranged opposite to each other on the inner wall of the bearing plate 14 and fixedly installed by bolts to ensure its stability and durability during operation. The output end of each electric telescopic rod 15 is fixedly connected to the pull plate 16 by a high-strength connection method. The pull plate 16 is set as a planar structure, which can evenly withstand the force applied during the clamping process to avoid uneven force during clamping.

[0046] When the electric telescopic rod 15 receives the control signal, its output end drives the fixedly connected pull plate 16 to extend in the target clamping direction, thereby clamping the target object (such as sleepers or other track laying components). When the clamping action is completed, the electric telescopic rod 15 drives the pull plate 16 to retract to the initial position, ready for the next operation.

[0047] The design of installing multiple electric telescopic rods 15 opposite to each other ensures that the pull plate 16 can evenly clamp the target object and the clamping force is evenly distributed to prevent the target object from shaking or slipping during the clamping or transportation process. In addition, the clamping assembly is installed on the inner wall of the carrier plate 14, and the stability of the carrier plate 14 is used to provide support for the clamping process.

[0048] Please refer to the attached Figure 6 -Attached Figure 7 , a positioning assembly is provided on the inner wall of the layout box 2; the positioning assembly includes a limit block 17, the limit block 17 is fixedly connected to the middle part of the stabilizing block 5, the left end of the inner wall of the limit block 17 is fixedly connected to the column 18, the top of the column 18 is rotatably connected to the ball nut 22, the outer wall of the ball nut 22 is fixedly connected to the first pulley 23, the inner wall of the ball nut 22 is threadedly connected to the lead screw 19, the bottom of the lead screw 19 is fixedly connected to the pressure ring 20, the inner wall of the column 18 is installed with a spring 21, the right end of the inner wall of the limit block 17 is rotatably connected to the gear 24, the top of the gear 24 is fixedly connected to the second pulley 25, one side of the limit block 17 is slidably connected to the extrusion plate 26, the pressure ring 20 is slidably connected to the inner wall of the column 18, and the spring 21 is connected to the bottom of the pressure ring 20.

[0049] The two extrusion plates 26 are arranged opposite to each other, and the extrusion plates 26 are meshedly connected with the gear 24 . The outer walls of the first belt pulley 23 and the second belt pulley 25 are sleeved with belts.

[0050] Specifically, the limiting block 17 is fixedly connected to the middle of the stabilizing block 5, and is fixed in position by being fastened and installed so as to have good anti-vibration performance during operation.

[0051] The left end of the inner wall of the limit block 17 is fixedly connected to a column 18 by welding. The column 18 is vertically arranged, and its top is rotatably connected to a ball nut 22 through a bearing mechanism. The outer wall of the ball nut 22 is fastened with a first pulley 23 by screws, which is used to transmit the rotational motion of the ball nut 22 to the second pulley 25.

[0052] The inner wall of the ball nut 22 is threadedly connected with a lead screw 19 . The lead screw 19 is precisely machined to ensure smooth thread fit and can slide up and down under the action of the ball nut 22 .

[0053] The bottom of the lead screw 19 is fixedly connected with a pressure ring 20. The pressure ring 20 is designed as a ring structure, and its outer diameter is matched with the inner wall clearance of the column 18 to ensure that the lead screw 19 always remains in a vertical state during the sliding process in the column 18. A spring 21 is installed on the inner wall of the column 18, and the top of the spring 21 is in contact with the pressure ring 20. When the lead screw 19 is forced to move downward, the spring 21 is compressed to store energy;

[0054] When the external pressure is released, the spring 21 pushes the pressure ring 20 and the lead screw 19 back to the initial position through the rebound force, thereby ensuring the reset function of the device.

[0055] The right end of the inner wall of the limit block 17 is rotatably connected with a gear 24 through a pin structure, and the top of the gear 24 is fixed with a second pulley 25 through a fastening connection. The outer wall of the first pulley 23 and the second pulley 25 are connected through a sleeved belt, thereby achieving synchronous movement of the two.

[0056] When the ball nut 22 rotates through the thread of the lead screw 19, it drives the first pulley 23 to rotate, and further drives the second pulley 25 and the gear 24 to rotate synchronously through the belt.

[0057] The squeezing plate 26 is slidably connected to one side of the limit block 17 through a sliding groove, and the two squeezing plates 26 are arranged opposite to each other and meshed with the gear 24. When the gear 24 rotates, the squeezing plate 26 is pushed to move outward or inward along the sliding groove through meshing to achieve squeezing or releasing operation.

[0058] Please refer to the attached Figure 1 -Attached Figure 2 A conveying assembly is provided on one side of the rear frame 3; the conveying assembly includes a plurality of assembly plates 27, the assembly plates 27 are fixedly connected to the top of the rear frame 3, a plurality of transmission shafts 28 are rotatably connected to the adjacent sides of two assembly plates 27, the outer walls of the plurality of transmission shafts 28 are sleeved with a plate conveyor belt 29, one end of one of the transmission shafts 28 is fixedly connected to a third pulley 30, wheels 31 are installed on both sides of the rear frame 3, and a fourth pulley 32 is fixedly connected to the axis of one of the wheels 31.

[0059] A plurality of wheels 31 are installed on both sides of the front frame 1, and a traction hook is installed on the front side of the front frame 1. The outer walls of the third belt pulley 30 and the fourth belt pulley 32 are sleeved with belts.

[0060] Specifically, the assembly plate 27 is fixedly mounted on the top of the rear frame 3 by welding or bolting, providing a stable support structure. Multiple assembly plates 27 are arranged in sequence along the conveying direction, and the adjacent sides of two assembly plates 27 are rotatably connected with multiple transmission shafts 28 through bearing seats, and the transmission shafts 28 can rotate smoothly under the support of the assembly plates 27.

[0061] The outer wall of each transmission shaft 28 is sleeved with a plate conveyor belt 29, which is made of high-strength flexible material and has an anti-skid texture on its upper surface to ensure that the conveyed material does not slip during operation.

[0062] One end of one of the transmission shafts 28 is fixed with a third pulley 30 through a key connection, and the outer wall of the third pulley 30 is connected to the fourth pulley 32 in the wheels 31 on both sides of the rear frame 3 through a belt. The wheels 31 are installed on both sides of the rear frame 3 and are connected to the frame structure through bearings to provide good rolling performance and stability. In addition, wheels 31 are also installed on both sides of the front frame 1, and are supported by bearings to ensure the smooth movement of the device on the track or other construction areas. A towing hook is installed on the front side of the front frame 1, which can be connected to a towing vehicle through the towing hook to achieve the overall towing movement of the device.

[0063] The power of the conveying assembly is provided by the rotation of the wheel 31. When the device is towed, the wheel 31 rolls on the ground, and the fourth pulley 32 on its axis drives the third pulley 30 to rotate through the belt. The rotation of the third pulley 30 further drives the transmission shaft 28 connected to it to rotate, so that the plate conveyor belt 29 sleeved on the transmission shaft 28 runs. Under the action of the transmission shaft 28, the plate conveyor belt 29 forms a continuous cycle of motion, gradually transporting the track laying material to the designated position, and providing stable feeding support for the clamping assembly.

[0064] Please refer to the attached Figure 8 A scraper assembly is installed on the left side of the front frame 1; the scraper assembly includes a scraper plate 33, and a plurality of scrapers 33 are fixedly connected to both sides of the bottom of the front frame 1 in opposite directions.

[0065] Specifically, the scraper 33 is designed to be arc-shaped or flat, and its front edge is set to be wedge-shaped, so that obstacles on the road surface can be effectively removed or pushed when the device moves.

[0066] The design of the opposing installation positions of the scraper discs 33 enables them to clean both sides of the front frame 1 at the same time, expanding the cleaning range to both sides of the vehicle body, further improving the passability and operating efficiency of the device.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic track laying device for rail transit engineering construction, comprising a front frame (1), characterized in that: A plurality of layout boxes (2) are installed on one side of the front frame (1), and a rear frame (3) is installed on one side of the plurality of layout boxes (2). The inner wall of one of the layout boxes (2) is fixedly connected to a plurality of mounting blocks (4), and a cylinder (6) is installed on the adjacent sides of two mounting blocks (4). The output end of the cylinder (6) is rotatably connected to a push rod (9). The inner wall of the layout box (2) is fixedly connected to a positioning block (7), and the inner wall of the positioning block (7) is rotatably connected to a connecting column (10). One side of the outer wall of the connecting column (10) is fixedly connected to a force-bearing rod (8). The inner wall of the layout box (2) is fixedly connected with a stabilizing block (5), one side of the stabilizing block (5) is rotatably connected with an adjusting block (11), the inner wall of the adjusting block (11) is slidably connected with a moving rod (12), the outer wall of the moving rod (12) is fixedly provided with a connecting rod (13), the middle part of the outer wall of the connecting rod (13) is fixedly connected with a bearing plate (14), the inner wall of the bearing plate (14) is provided with a clamping assembly, the inner wall of the layout box (2) is provided with a positioning assembly, one side of the rear frame (3) is provided with a conveying assembly, and the left side of the front frame (1) is equipped with a scraping assembly.

2. The automatic track laying device for rail transit engineering construction according to claim 1, characterized in that: The connecting rod (13) is rotatably connected to the inner walls of the plurality of force-bearing rods (8), and the push rod (9) is fixedly connected to one side of the outer wall of the connecting column (10).

3. The automatic track laying device for rail transit engineering construction according to claim 1, characterized in that: The positioning assembly comprises a limit block (17), wherein the limit block (17) is fixedly connected to the middle part of the stabilizing block (5), the left end of the inner wall of the limit block (17) is fixedly connected to a column (18), the top of the column (18) is rotatably connected to a ball nut (22), the outer wall of the ball nut (22) is fixedly connected to a first pulley (23), the inner wall of the ball nut (22) is threadedly connected to a lead screw (19), the bottom of the lead screw (19) is fixedly connected to a pressure ring (20), the inner wall of the column (18) is provided with a spring (21), the right end of the inner wall of the limit block (17) is rotatably connected to a gear (24), the top of the gear (24) is fixedly connected to a second pulley (25), and one side of the limit block (17) is slidably connected to an extrusion plate (26).

4. The automatic track laying device for rail transit engineering construction according to claim 3 is characterized in that: The two extrusion plates (26) are arranged opposite to each other, the extrusion plates (26) are meshingly connected with the gear (24), and the outer walls of the first belt pulley (23) and the second belt pulley (25) are sleeved with belts.

5. The automatic track laying device for rail transit engineering construction according to claim 1, characterized in that: The clamping assembly comprises an electric telescopic rod (15), a plurality of the electric telescopic rods (15) are mounted opposite to each other on the inner wall of a bearing plate (14), and the output ends of the electric telescopic rods (15) are fixedly connected to a pulling plate (16).

6. The automatic track laying device for rail transit engineering construction according to claim 1, characterized in that: The conveying assembly comprises a plurality of assembly plates (27), wherein the assembly plates (27) are fixedly connected to the top of the rear frame (3), and a plurality of transmission shafts (28) are rotatably connected to the adjacent sides of two assembly plates (27), and the outer walls of the plurality of transmission shafts (28) are sleeved with a plate conveyor belt (29), and one end of one of the transmission shafts (28) is fixedly connected to a third pulley (30), and wheels (31) are installed on both sides of the rear frame (3), and the axis of one of the wheels (31) is fixedly connected to a fourth pulley (32).

7. The automatic track laying device for rail transit engineering construction according to claim 6, characterized in that: The plurality of wheels (31) are mounted on both sides of the front frame (1), and a towing hook is mounted on the front side of the front frame (1).

8. The automatic track laying device for rail transit engineering construction according to claim 6, characterized in that: The outer walls of the third belt pulley (30) and the fourth belt pulley (32) are sleeved with belts.

9. The automatic track laying device for rail transit engineering construction according to claim 1, characterized in that: The scraper assembly comprises a scraper plate (33), and a plurality of the scraper plates (33) are fixedly connected to opposite sides of the bottom of the front frame (1).

10. The automatic track laying device for rail transit engineering construction according to claim 3, characterized in that: The pressure ring (20) is slidably connected to the inner wall of the column (18), and the spring (21) is connected to the bottom of the pressure ring (20).

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