Leveling device and method for ballastless track slab concrete pouring

Abstract

The invention relates to the field of ballastless track construction, in particular to a ballastless track slab concrete pouring leveling device and method.The ballastless track slab concrete pouring leveling device comprises a base, a supporting seat used for containing a track slab is fixedly connected to the base, a supporting frame is arranged on the base, and a walking frame is installed on the supporting frame in a sliding mode; a scraping plate is fixedly connected to the walking frame, the bottom of the scraping plate is attached to the top of the track plate, a penetrating opening matched with a sleeper on the track plate is formed in the bottom of the scraping plate, and a walking mechanism used for driving the walking frame to move is installed on the supporting frame. The ballastless track slab leveling device solves the problem that the ballastless track slab leveling efficiency is low.

Description

Technical Field

[0001] This invention relates to the field of ballastless track construction, and in particular to a leveling device and method for pouring concrete for ballastless track slabs. Background Technology

[0002] The CRTSⅢ slab track system consists of rails, fasteners with elastic shoulders, precast track slabs, a self-compacting concrete filling layer, limiting grooves, an intermediate isolation layer (made of geotextile), and a reinforced concrete base plate. It features stable performance, high durability, and a long service life. The slab track is not only the core component for load transfer but also a key structural unit ensuring high smoothness, high durability, and low maintenance costs for high-speed railways.

[0003] In related technologies, the leveling method for concrete pouring of ballastless track slabs includes the following steps: S1, base surface cleaning: the base surface is pre-wetted with water, and debris is removed to ensure there is no standing water or oil stains; S2, formwork installation: standardized steel formwork is installed, the formwork surface is smooth, the joints are tight, and a release agent is applied; S3, concrete placement: concrete is poured continuously from one side to the other, pumped into the formwork to avoid impacting the track panel; S4, vibration process: a Φ50 immersion vibrator is used to vibrate in a staggered pattern for 15-90 seconds, with the surface showing slurry, no air bubbles, and no settling as the signs of compaction; S5, leveling fixture installation: a traveling track is erected on the formwork, the traveling mechanism of the leveling fixture is placed into the traveling track, and the scraper connected below the traveling mechanism is placed on the track slab. The bottom elevation of the scraper is adjusted to meet the elevation requirements of the top surface of the track slab.

[0004] Regarding the aforementioned technologies, in the leveling process of ballastless track slabs, because the top surface of the double-block sleepers on the track slab is slightly higher than the top surface of the track slab itself, the leveling process requires repeated adjustments to the leveling gauge, making the operation more complicated for workers and resulting in low leveling efficiency of ballastless track slabs. Summary of the Invention

[0005] To address the problem of low leveling efficiency in ballastless track slabs, this invention provides a leveling device and method for concrete pouring of ballastless track slabs.

[0006] In a first aspect, the leveling device for concrete pouring of ballastless track slabs provided by the present invention adopts the following technical solution:

[0007] A leveling device for concrete pouring of ballastless track slabs includes a base, a support seat for placing the track slab is fixedly connected to the base, a support frame is provided on the base, a traveling frame is slidably installed on the support frame, a scraper is fixedly connected to the traveling frame, the bottom of the scraper is in contact with the top of the track slab, the bottom of the scraper has a through-hole that matches the sleeper rail on the track slab, and a traveling mechanism for driving the traveling frame to move is installed on the support frame.

[0008] Preferably, a movable guide rod is fixedly connected to the traveling frame, a bearing plate is slidably connected to the movable guide rod, a sliding mechanism for driving the bearing plate to slide along the length direction of the sleeper rail is installed on the traveling frame, and a smoothing plate that contacts the top of the sleeper rail is slidably connected to the bottom of the bearing plate.

[0009] Preferably, a guide plate is fixedly connected to the traveling frame, and the guide plate has protrusions formed with the same shape as the sleeper rail. The guide plate and the sleeper rail are symmetrically arranged on the upper and lower sides of the support plate. A mating plate that contacts the bottom of the guide plate is slidably installed on the top of the support plate. A first baffle is fixedly connected to the mating plate, and a second baffle is fixedly connected to the support plate. A spring is fixedly connected between the first baffle and the second baffle. The mating plate and the squeegee are connected through a transmission mechanism, and the mating plate and the squeegee move synchronously towards each other.

[0010] Preferably, the transmission mechanism includes two sets of transmission components respectively corresponding to the mating plate and the smoothing plate. A transmission guide rod is fixedly connected to the bearing plate, and a moving rod is slidably installed on the transmission guide rod. The two sets of transmission components are symmetrically arranged on both sides of the transmission guide rod. Each transmission component includes a first connecting rod rotatably installed on the bearing plate and a second connecting rod rotatably installed on the mating plate. A sliding sleeve is slidably installed on the first connecting rod, and the sliding sleeve is rotatably connected to the moving rod. A connecting seat is rotatably installed at the end of the first connecting rod away from the bearing plate, and the second connecting rod is rotatably connected to the connecting seat.

[0011] Preferably, the transmission mechanism includes a first rack and a second rack slidably mounted on a support plate. The first rack is fixedly connected to a mating plate, and the second rack is fixedly connected to a smoothing plate. A transmission gear that meshes with both the first and second racks is rotatably mounted on the support plate.

[0012] Preferably, a concrete storage box is fixedly connected to the walking frame, and a spray pipe facing the sleeper rail is fixedly connected to the bearing plate. The spray pipe and the concrete storage box are connected to an air pump through a pipe.

[0013] Preferably, nozzles are provided on both sides of the support plate.

[0014] Preferably, the sliding mechanism includes a cylinder fixedly connected to the traveling frame and a scissor-type telescopic frame mounted on the traveling frame. One side of the scissor-type telescopic frame is fixedly connected to the extension shaft of the cylinder, and the other side of the scissor-type telescopic frame is fixedly connected to the bearing plate.

[0015] Preferably, the walking mechanism includes a second guide rail fixedly connected to the support frame, a fixed plate fixedly connected to the walking frame, a walking motor fixedly connected to the fixed plate, and a second roller that cooperates with the second guide rail fixedly connected to the output shaft of the walking motor.

[0016] Secondly, the leveling method for concrete pouring of ballastless track slabs provided by the present invention adopts the following technical solution:

[0017] A leveling method for concrete pouring of ballastless track slabs includes the following steps:

[0018] S1. First, start the drive motor 18. The drive motor 18 will move the support frame 12 to the top of the track plate 2.

[0019] S2. Then start the walking motor 32. The walking motor 32 drives the walking frame 13 to move along the track plate 2. The walking frame 13 drives the scraper 14 to scrape the top of the track plate 2.

[0020] S3. When the scraper 14 moves to one side of the sleeper rail 21, the smearing plate 51 is opposite to the sleeper rail 21. The walking motor 32 is turned off, the cylinder 41 is started, and the cylinder 41 drives the bearing plate 16 to move. The bearing plate 16 drives the smearing plate 51 to smooth the top of the sleeper rail 21.

[0021] S4. After the two sleeper rails 21 in the same column are smoothed, the smoothing plate 51 returns to the initial position, the cylinder 41 is turned off, the walking motor 32 is started, and the track plate 2 is continued to be smoothed.

[0022] S5. Repeat the above operation until the entire track plate 2 is smoothed.

[0023] In summary, the present invention has at least the following beneficial technical effects:

[0024] 1. When leveling ballastless track slabs, first start the drive motor. The drive motor moves the support frame above the track slab. Then start the travel motor. The travel motor moves the travel frame along the track slab. The travel frame moves the scraper to level the top of the track slab. At the same time, the sleeper can pass through the through-hole without adjusting the height of the scraper. The top surface of the through-hole can also level the top of the sleeper, solving the problem of low leveling efficiency of ballastless track slabs.

[0025] 2. Start the sliding mechanism. The sliding mechanism drives the bearing plate to slide along the length of the sleeper rail. The bearing plate drives the screed plate to smooth the upper surface of the sleeper rail, which facilitates the operation of the staff and improves the leveling efficiency of the ballastless track slab.

[0026] 3. During the movement of the bearing plate, the bearing plate drives the mating plate to move. The spring provides a continuous force to the mating plate, so that the mating plate is in close contact with the guide plate and slides along the guide plate. The mating plate drives the squeegee to move synchronously in opposite directions through the transmission mechanism, so that the squeegee can smooth the shape of the sleeper rail and avoid affecting the quality of the sleeper rail. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the leveling device for concrete pouring of ballastless track slabs according to an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the support frame according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the scraper structure according to an embodiment of the present invention.

[0030] Figure 4 This is a schematic diagram of the track slab according to an embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the sliding mechanism according to an embodiment of the present invention.

[0032] Figure 6 This is a schematic diagram of the smoothing mechanism according to an embodiment of the present invention.

[0033] Figure 7 This is a schematic diagram of the transmission mechanism according to an embodiment of the present invention.

[0034] Figure 8 This is a schematic diagram of the transmission component according to an embodiment of the present invention.

[0035] Figure 9 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0036] Explanation of reference numerals in the attached drawings: 1. Base; 11. Support base; 12. Support frame; 13. Traveling frame; 131. Fixed plate; 14. Scraper; 141. Through opening; 15. Moving guide rod; 16. Bearing plate; 17. First guide rail; 18. Drive motor; 19. First roller; 2. Track plate; 21. Sleeper rail; 3. Traveling mechanism; 31. Second guide rail; 32. Traveling motor; 33. Second roller; 4. Sliding mechanism; 41. Cylinder; 42. Scissor-type telescopic frame; 5. Smoothing mechanism; 51. Smoothing plate; 52. Guide plate; 53. Matching plate; 54. First baffle; 55. Second baffle; 56. Spring; 57. Smoothing guide rod; 6. Transmission mechanism; 61. Transmission guide rod; 62. Moving rod; 63. First connecting rod; 631. Sliding sleeve; 632. First gear; 64. Second connecting rod; 641. Second gear; 65. Connecting seat; 66. First rack; 67. Second rack; 68. Transmission gear; 7. Repair mechanism; 71. Concrete storage box; 72. Spray pipe. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 The present invention will be described in further detail below.

[0038] This invention discloses a leveling device and method for concrete pouring of ballastless track slabs.

[0039] Example 1

[0040] Reference Figures 1 to 3The leveling device for concrete pouring of ballastless track slabs includes a base 1, a support seat 11 for placing track slabs 2 fixedly connected to the base 1, a support frame 12 provided on the base 1, a first guide rail 17 fixedly connected to the base 1, a drive motor 18 fixedly connected to the bottom of the support frame 12, and a first roller 19 cooperating with the first guide rail 17 fixedly connected to the output shaft of the drive motor 18. When the drive motor 18 is started, the drive motor 18 drives the support frame 12 to slide on the base 1. A traveling frame 13 is slidably installed on the support frame 12, and a scraper 14 is fixedly connected to the traveling frame 13. The bottom of the scraper 14 is in contact with the top of the track slab 2, and the bottom of the scraper 14 has an opening that connects with the track slab 2. The sleeper rail 21 has a through-hole 141 that matches it. The support frame 12 is equipped with a traveling mechanism 3 for driving the traveling frame 13 to move. When it is necessary to level the ballastless track slab, first start the drive motor 18. The drive motor 18 drives the support frame 12 to move above the track slab 2. Then start the traveling motor 32. The traveling motor 32 drives the traveling frame 13 to move along the track slab 2. The traveling frame 13 drives the scraper 14 to level the top of the track slab 2. At the same time, the sleeper rail 21 can pass through the through-hole 141 without adjusting the height of the scraper 14. The top surface of the through-hole 141 can also level the top of the sleeper rail 21, solving the problem of low leveling efficiency of ballastless track slabs.

[0041] Reference Figure 4 and Figure 5 A movable guide rod 15 is fixedly connected to the traveling frame 13, and a bearing plate 16 is slidably connected to the movable guide rod 15. A sliding mechanism 4 is installed on the traveling frame 13 to drive the bearing plate 16 to slide along the length direction of the sleeper rail 21. A smoothing mechanism 5 is provided in the traveling frame 13. The smoothing mechanism 5 includes a smoothing plate 51 that is slidably connected to the bottom of the bearing plate 16. The smoothing plate 51 contacts the top of the sleeper rail 21. When the sliding mechanism 4 is activated, the sliding mechanism 4 drives the bearing plate 16 to slide along the length direction of the sleeper rail 21. The bearing plate 16 drives the smoothing plate 51 to smooth the upper surface of the sleeper rail 21, which facilitates the operation of the workers and improves the leveling efficiency of the ballastless track slab.

[0042] Reference Figures 4 to 6A guide plate 52 is fixedly connected to the traveling frame 13. The guide plate 52 has protrusions formed on it, identical in shape to the sleeper rail 21. The guide plate 52 and sleeper rail 21 are symmetrically arranged on the upper and lower sides of the support plate 16. The bottom of the support plate 16 contacts the track plate 2. A first connection port is opened at the bottom of the support plate 16, and a second connection port is opened at the top of the support plate 16. The first connection port allows the sleeper rail 21 to pass through. A smoothing plate 51 is slidably installed in the first connection port. A mating plate 53, which contacts the bottom of the guide plate 52, is slidably installed in the second connection port. A first baffle 54 is fixedly connected to the mating plate 53, and a second baffle 55 is fixedly connected to the support plate 16. The first baffle 54 and the second baffle 55... A spring 56 is fixedly connected between the two sides. A smoothing guide rod 57 passing through the second baffle 55 is fixedly connected to the first baffle 54. The mating plate 53 and the smoothing plate 51 are connected by a transmission mechanism 6. The mating plate 53 and the smoothing plate 51 move synchronously towards each other. During the movement of the bearing plate 16, the bearing plate 16 drives the mating plate 53 to move. The spring 56 provides a continuous force to the mating plate 53, so that the mating plate 53 is tightly attached to the guide plate 52 and slides along the guide plate 52. The mating plate 53 drives the smoothing plate 51 to move synchronously towards each other through the transmission mechanism 6, so that the smoothing plate 51 can smooth along the shape of the sleeper rail 21 and avoid affecting the quality of the sleeper rail 21.

[0043] Reference Figures 6 to 8 The transmission mechanism 6 includes two sets of transmission components respectively corresponding to the mating plate 53 and the smoothing plate 51. A transmission guide rod 61 is fixedly connected to the bearing plate 16, and a moving rod 62 is slidably mounted on the transmission guide rod 61. The two sets of transmission components are symmetrically arranged on both sides of the transmission guide rod 61. The transmission components include a first connecting rod 63 rotatably mounted on the bearing plate 16 and a second connecting rod 64 rotatably mounted on the mating plate 53. A sliding sleeve 631 is slidably mounted on the first connecting rod 63 and is rotatably connected to the moving rod 62. A connecting seat 65 is rotatably mounted on the end of the first connecting rod 63 away from the bearing plate 16, and the second connecting rod 64 is rotatably connected to the connecting seat 65. The second connecting rod 64 is connected to the first connecting rod 63. The rods 63 are symmetrically arranged. A first gear 632 is fixedly connected to the shaft of the first connecting rod 63, and a second gear 641 that meshes with the first gear 632 is fixedly connected to the shaft of the second connecting rod 64. During the sliding process of the mating plate 53 along the guide plate 52, the mating plate 53 drives the second connecting rod 64 to rotate, the second connecting rod 64 drives the first connecting rod 63 to rotate, the first connecting rod 63 drives the moving rod 62 to slide along the transmission guide rod 61, and the moving rod 62 drives the second connecting rod 64 in another set of transmission components to rotate, thereby driving the squeegee plate 51 to move synchronously in opposite directions. The squeegee plate 51 is driven to move up and down through the linkage, and the movement accuracy of the squeegee plate 51 is higher.

[0044] Reference Figures 5 to 7A repair mechanism 7 is installed on the traveling frame 13. The repair mechanism 7 includes a concrete storage box 71 fixedly connected to the traveling frame 13. A spray pipe 72 facing the sleeper rail 21 is fixedly connected to the bearing plate 16. The spray pipe 72 and the concrete storage box 71 are connected to an air pump through a pipe. Spray pipes 72 are provided on both sides of the bearing plate 16. During the process of smoothing the upper surface of the sleeper rail 21 by the screed plate 51, the concrete in the concrete storage box 71 is pumped to the spray pipe 72 through the air pump and the pipe and sprayed onto the sleeper rail 21, which can repair the potholes on the sleeper rail 21.

[0045] Reference Figure 5 The sliding mechanism 4 includes a cylinder 41 fixedly connected to the traveling frame 13 and a scissor-type telescopic frame 42 installed on the traveling frame 13. One side of the scissor-type telescopic frame 42 is fixedly connected to the extension shaft of the cylinder 41, and the other side of the scissor-type telescopic frame 42 is fixedly connected to the bearing plate 16. When the cylinder 41 is activated, the cylinder 41 drives the scissor-type telescopic frame 42 to extend and retract, and the scissor-type telescopic frame 42 drives the bearing plate 16 to move.

[0046] Reference Figure 3 The walking mechanism 3 includes a second guide rail 31 fixedly connected to the support frame 12, a fixed plate 131 fixedly connected to the walking frame 13, a walking motor 32 fixedly connected to the fixed plate 131, and a second roller 33 that cooperates with the second guide rail 31 fixedly connected to the output shaft of the walking motor 32. When the walking motor 32 is started, the walking motor 32 drives the second roller 33 to rotate, and the second roller 33 drives the walking frame 13 to move.

[0047] The implementation principle of a leveling device for concrete pouring of ballastless track slabs according to an embodiment of the present invention is as follows: When leveling of the ballastless track slab is required, firstly, the drive motor 18 is started, which drives the support frame 12 to move above the track slab 2. Then, the travel motor 32 is started, which drives the travel frame 13 to move along the track slab 2. The travel frame 13 drives the scraper 14 to level the upper part of the track slab 2. When the scraper 14 moves to one side of the sleeper rail 21, the screed plate 51 is opposite to the sleeper rail 21. The travel motor 32 is turned off, and the cylinder 41 is started. The cylinder 41 drives the bearing plate 16 to move, which drives the screed plate 51 and the mating plate 53 to move. The spring 56 provides a continuous force to the mating plate 53, so that the mating plate 53 is tightly attached to the guide plate 52 and moves along the guide plate. 52 slides, and the cooperating plate 53 drives the second connecting rod 64 to rotate. The second connecting rod 64 drives the first connecting rod 63 to rotate. The first connecting rod 63 drives the moving rod 62 to slide along the transmission guide rod 61. The moving rod 62 drives the second connecting rod 64 in another set of transmission components to rotate, thereby driving the screed plate 51 to move synchronously in opposite directions, so that the screed plate 51 can smooth along the shape of the sleeper rail 21, avoiding affecting the quality of the sleeper rail 21. At the same time, the concrete in the concrete storage box 71 is pumped to the spray pipe 72 through the air pump and pipeline and sprayed onto the sleeper rail 21, which can repair the pits on the sleeper rail 21. After the two sleeper rails 21 in the same column are smoothed, the screed plate 51 returns to the initial position, the cylinder 41 is closed, the walking motor 32 is started, and the track plate 2 is continued to be smoothed.

[0048] A leveling method for concrete pouring of ballastless track slabs includes the following steps:

[0049] S1. First, start the drive motor 18. The drive motor 18 will move the support frame 12 to the top of the track plate 2.

[0050] S2. Then start the walking motor 32. The walking motor 32 drives the walking frame 13 to move along the track plate 2. The walking frame 13 drives the scraper 14 to scrape the top of the track plate 2.

[0051] S3. When the scraper 14 moves to one side of the sleeper rail 21, the smearing plate 51 is opposite to the sleeper rail 21. The walking motor 32 is turned off, and the cylinder 41 is started. The cylinder 41 drives the bearing plate 16 to move, and the bearing plate 16 drives the smearing plate 51 to smooth the top of the sleeper rail 21.

[0052] S4. After the two sleeper rails 21 in the same column are smoothed, the smoothing plate 51 returns to the initial position, the cylinder 41 is turned off, the walking motor 32 is started, and the track plate 2 is continued to be smoothed.

[0053] S5. Repeat the above operation until the entire track plate 2 is smoothed.

[0054] Example 2

[0055] Reference Figure 9 The difference between this embodiment and embodiment 1 is that the transmission mechanism 6 includes a first rack 66 and a second rack 67 slidably mounted on the support plate 16. The first rack 66 is fixedly connected to the mating plate 53, and the second rack 67 is fixedly connected to the smearing plate 51. A transmission gear 68 is rotatably mounted on the support plate 16, which meshes with both the first rack 66 and the second rack 67. During the sliding process of the mating plate 53 along the guide plate 52, the mating plate 53 drives the first rack 66 to move, the first rack 66 drives the transmission gear 68 to rotate, the transmission gear 68 drives the second rack 67 to move, and the second rack 67 drives the smearing plate 51 to move synchronously in opposite directions.

[0056] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A leveling device for concrete pouring of ballastless track slabs, comprising a base (1), wherein a support seat (11) for placing track slabs (2) is fixedly connected to the base (1), characterized in that: A support frame (12) is provided on the base (1), and a traveling frame (13) is slidably installed on the support frame (12). A scraper (14) is fixedly connected to the traveling frame (13). The bottom of the scraper (14) is in contact with the top of the track plate (2). The bottom of the scraper (14) has a through-hole (141) that matches the sleeper rail (21) on the track plate (2). A traveling mechanism (3) for driving the traveling frame (13) to move is installed on the support frame (12).

2. The leveling device for concrete pouring of ballastless track slabs according to claim 1, characterized in that: A movable guide rod (15) is fixedly connected to the walking frame (13), and a bearing plate (16) is slidably connected to the movable guide rod (15). A sliding mechanism (4) for driving the bearing plate (16) to slide along the length direction of the sleeper rail (21) is installed on the walking frame (13). A smearing plate (51) that contacts the top of the sleeper rail (21) is slidably connected to the bottom of the bearing plate (16).

3. A leveling device for concrete pouring of ballastless track slabs according to claim 2, characterized in that: A guide plate (52) is fixedly connected to the walking frame (13). The guide plate (52) has a protrusion with the same shape as the sleeper rail (21). The guide plate (52) and the sleeper rail (21) are symmetrically arranged on the upper and lower sides of the bearing plate (16). A mating plate (53) that contacts the bottom of the guide plate (52) is slidably installed on the top of the bearing plate (16). A first baffle (54) is fixedly connected to the mating plate (53). A second baffle (55) is fixedly connected to the bearing plate (16). A spring (56) is fixedly connected between the first baffle (54) and the second baffle (55). The mating plate (53) and the squeegee plate (51) are connected through a transmission mechanism (6). The mating plate (53) and the squeegee plate (51) move synchronously towards each other.

4. A leveling device for concrete pouring of ballastless track slabs according to claim 3, characterized in that: The transmission mechanism (6) includes two sets of transmission components respectively corresponding to the mating plate (53) and the trowel plate (51). A transmission guide rod (61) is fixedly connected to the bearing plate (16). A moving rod (62) is slidably installed on the transmission guide rod (61). The two sets of transmission components are symmetrically arranged on both sides of the transmission guide rod (61). The transmission component includes a first connecting rod (63) rotatably installed on the bearing plate (16) and a second connecting rod (64) rotatably installed on the mating plate (53). A sliding sleeve (631) is slidably installed on the first connecting rod (63). The sliding sleeve (631) is rotatably connected to the moving rod (62). A connecting seat (65) is rotatably installed at the end of the first connecting rod (63) away from the bearing plate (16). The second connecting rod (64) is rotatably connected to the connecting seat (65).

5. A leveling device for concrete pouring of ballastless track slabs according to claim 3, characterized in that: The transmission mechanism (6) includes a first rack (66) and a second rack (67) slidably mounted on a support plate (16). The first rack (66) is fixedly connected to a mating plate (53), and the second rack (67) is fixedly connected to a smoothing plate (51). A transmission gear (68) is rotatably mounted on the support plate (16) and simultaneously meshes with the first rack (66) and the second rack (67).

6. A leveling device for concrete pouring of ballastless track slabs according to claim 2, characterized in that: A concrete storage box (71) is fixedly connected to the walking frame (13), and a spray pipe (72) facing the sleeper rail (21) is fixedly connected to the bearing plate (16). The spray pipe (72) and the concrete storage box (71) are connected to an air pump through a pipe.

7. A leveling device for concrete pouring of ballastless track slabs according to claim 6, characterized in that: The bearing plate (16) is provided with nozzles (72) on both sides.

8. A leveling device for concrete pouring of ballastless track slabs according to claim 2, characterized in that: The sliding mechanism (4) includes a cylinder (41) fixedly connected to the walking frame (13) and a scissor telescopic frame (42) installed on the walking frame (13). One side of the scissor telescopic frame (42) is fixedly connected to the extension shaft of the cylinder (41), and the other side of the scissor telescopic frame (42) is fixedly connected to the bearing plate (16).

9. A leveling device for concrete pouring of ballastless track slabs according to claim 1, characterized in that: The walking mechanism (3) includes a second guide rail (31) fixedly connected to the support frame (12), a fixed plate (131) fixedly connected to the walking frame (13), a walking motor (32) fixedly connected to the fixed plate (131), and a second roller (33) that cooperates with the second guide rail (31) fixedly connected to the output shaft of the walking motor (32).

10. A leveling method for concrete pouring of ballastless track slabs, using a leveling device for concrete pouring of ballastless track slabs as described in any one of claims 1-9, characterized in that... Includes the following steps: S1. First, start the drive motor (18). The drive motor (18) drives the support frame (12) to move above the track plate (2). S2. Then start the walking motor (32). The walking motor (32) drives the walking frame (13) to move along the track plate (2). The walking frame (13) drives the scraper (14) to scrape the top of the track plate (2). S3. When the scraper (14) moves to one side of the sleeper rail (21), the smearing plate (51) is opposite to the sleeper rail (21). The walking motor (32) is turned off, and the cylinder (41) is started. The cylinder (41) drives the bearing plate (16) to move. The bearing plate (16) drives the smearing plate (51) to smooth the top of the sleeper rail (21). S4. After the two sleeper rails (21) in the same column are smoothed, the smoothing plate (51) returns to the initial position, the cylinder (41) is closed, the walking motor (32) is started, and the track plate (2) is continued to be smoothed. S5. Repeat the above operation until the entire track plate (2) is smoothed.

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