Railway bridge walkway screeding apparatus

Abstract

The utility model discloses a railway bridge walking board plastering equipment concretely relates to railway bridge maintenance construction technical field, including annular base, the right side of annular base is provided with drive mechanism, the front side of annular base is provided with vibrating mechanism, the left side of annular base is provided with plastering mechanism, the inner ring of annular base is provided with recovery mechanism, the top fixed mounting of annular base has annular turntable, the top annular array fixed mounting of annular base has a plurality of mould positioning mechanism, the lateral wall fixed mounting of annular turntable has outer gear ring, drive mechanism includes and has extension board. The utility model discloses a railway bridge walking board plastering equipment, through automatic plastering mechanism, has realized the mechanization and standardization of plastering operation, effectively improved the evenness of plastering quality, reduced surface wave, pockmark and flatness and so on the defect of excess error, reduced the dependence on manual operation skill.

Description

Technical Field

[0001] This utility model relates to the field of railway bridge maintenance and construction technology, and in particular to a railway bridge pedestrian slab plastering device. Background Technology

[0002] Railway bridge pedestrian walkways are an important component of railway bridge inspection vehicle access routes, typically made of precast reinforced concrete. During the production process, after the concrete is poured into the mold, its surface must be finished to create a smooth, solid, and clean surface. This process is crucial for ensuring the dimensional accuracy, user comfort, durability, and preventing surface water accumulation. The existing technology has the following problems: In the prefabrication of railway bridge pedestrian slabs, the quality of the finishing process is highly dependent on the skill level and proficiency of the operators, as well as their working conditions at the time. The flatness, smoothness, and density of the finishing work completed by different workers or by the same worker at different times often vary, making it difficult to achieve uniformity and standardization of product quality. This can easily lead to quality defects such as surface waviness, localized pitting, and unevenness exceeding tolerances. Although there are large-scale automated finishing equipment suitable for building flooring, they are bulky, complex to operate, and expensive. They are also unsuitable for the specific working conditions of railway bridge pedestrian slabs, which are relatively small in size, have a compact production line layout, and require fast and flexible operation. Therefore, they lack specificity and practicality. Utility Model Content

[0003] The main purpose of this utility model is to provide a railway bridge pedestrian slab plastering equipment, which can effectively solve the problems in the existing technology of railway bridge pedestrian slab plastering quality relying on manual labor, difficulty in standardization, easy generation of quality defects, and lack of efficient and compact automated equipment suitable for small prefabricated components.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A railway bridge pedestrian slab finishing device includes an annular base. A drive mechanism is located on the right side of the annular base, a vibration mechanism is located on the front side of the annular base, a finishing mechanism is located on the left side of the annular base, a recycling mechanism is located on the inner ring of the annular base, an annular turntable is fixedly installed on the top of the annular base, and several mold positioning mechanisms are fixedly installed in an annular array on the top of the annular base. An external gear ring is fixedly installed on the side wall of the annular turntable. The drive mechanism includes an extension plate, a vertical pole is fixedly installed on the top of the extension plate, and an L-shaped concrete conveying pipe is fixedly installed on the top of the vertical pole. The bottom output end of the vertical part of the L-shaped concrete conveying pipe is located directly above one of the mold positioning mechanisms. An electric control valve is provided on the outer wall of the vertical part of the L-shaped concrete conveying pipe for controlling the concrete output. A servo motor is fixedly installed on the bottom of the extension plate, and the output shaft of the servo motor extends through to the top of the extension plate and is fixedly installed with a drive gear. The drive gear meshes with the external gear ring.

[0005] Preferably, each of the plurality of mold positioning mechanisms includes an L-shaped base plate. The L-shaped base plate is located vertically away from the center of the annular turntable. The L-shaped base plate has a drive chamber. A positive and negative threaded rod is rotatably installed on one side of the inner wall of the drive chamber. The other end of the positive and negative threaded rod passes through the side wall of the L-shaped base plate and is fixedly installed with a rotating handle. The outer walls of the positive and negative threaded rods are respectively provided with threaded walls with opposite threads. A movable plate is threadedly installed on the outer walls of both threaded walls. A limit slide rod is fixedly installed between the two sides of the inner wall of the drive chamber. Both movable plates are slidably connected to the limit slide rod.

[0006] Preferably, connecting rods are fixedly installed on the opposite sides of the two movable plates, and the other ends of the two connecting rods respectively penetrate to both sides of the L-shaped base plate and are fixedly installed with L-shaped clamps. Rubber pads are fixedly bonded to the opposite ends of the two L-shaped clamps. A walking board mold is provided at the top of the horizontal part of the L-shaped base plate. One side of the walking board mold is attached to the vertical part of the L-shaped base plate, and the other side extends to the upper part of the inner ring of the annular turntable.

[0007] Preferably, the vibration mechanism includes a base plate, which is fixedly installed on the front side of the annular base. A second servo motor is fixedly installed on the top of the base plate. A plurality of rotating rods are fixedly installed in an annular array on the outer wall of the output shaft of the second servo motor. A striking rubber ball is fixedly installed on the other end of each of the rotating rods. The striking rubber balls strike the outer wall of the L-shaped base plate in sequence.

[0008] Preferably, the surface-applying mechanism includes an L-shaped bracket fixedly installed on the left side of the annular base. A servo motor is fixedly installed on the left side of the vertical part of the L-shaped bracket. A vertically penetrating moving groove is opened on the horizontal part of the L-shaped bracket. The output shaft of the servo motor passes through the inner side of the moving groove and is fixedly installed with a lead screw. A moving hanging plate is threaded on the outer wall of the lead screw. A sliding rod is fixedly installed between the left and right sides of the inner ring of the moving groove. The moving hanging plate is slidably connected to the sliding rod.

[0009] Preferably, an electric push rod and a guide rod are fixedly installed at the bottom end of the movable hanging platform. The guide rod is located on one side of the electric push rod. A V-shaped trowel is fixedly installed at the output end of the electric push rod. The bottom of the V-shaped trowel is in contact with the top of the walking board mold. The V-shaped trowel is slidably connected to the guide rod. The outer wall of the V-shaped trowel is fixedly coated with a release agent.

[0010] Preferably, the recycling mechanism includes a concrete recycling cylinder. Several supporting legs are fixedly installed in a circular array at the bottom of the concrete recycling cylinder. The top of the concrete recycling cylinder is located below a circular turntable. A servo motor is fixedly installed at the center of the bottom of the concrete recycling cylinder. The output shaft of the servo motor extends through the inner cavity of the concrete recycling cylinder, and a stirring rod is fixedly installed on its outer wall. A scraper is fixedly installed at the other end of the stirring rod, and the scraper fits against the inner ring of the concrete recycling cylinder. A discharge pipe penetrating the bottom of the inner cavity is fixedly connected to the outer wall of the concrete recycling cylinder for discharging excess collected concrete for reuse. A release agent is fixedly coated on the inner wall of the concrete recycling cylinder.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a railway bridge pedestrian slab plastering equipment. Through an automated plastering mechanism, the plastering operation is mechanized and standardized, which effectively improves the uniformity of plastering quality, reduces defects such as surface waves, pitting, and unevenness, and reduces the reliance on manual operation skills.

[0012] 2. This utility model provides a railway bridge pedestrian slab finishing equipment, which improves the density of concrete and material utilization by integrating a vibration mechanism and a recycling mechanism. At the same time, it realizes continuous operation in a compact layout, is suitable for mass production of railway bridge pedestrian slabs, and reduces labor costs and labor intensity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the drive mechanism structure of this utility model; Figure 3This is a schematic diagram of the mold positioning mechanism of this utility model; Figure 4 This is a schematic diagram of the vibration mechanism structure of this utility model; Figure 5 This is a schematic diagram of the smearing mechanism of this utility model; Figure 6 This is a schematic diagram of the recycling mechanism of this utility model.

[0014] In the diagram: 1. Annular base; 11. Annular turntable; 12. External gear ring; 2. Mold positioning mechanism; 21. L-shaped base plate; 22. Drive chamber; 23. Positive and negative threaded rod; 24. Rotary handle; 25. Moving plate; 26. L-shaped clamping plate; 27. Rubber pad; 28. Walking board mold; 29. ​​Limiting slide bar; 3. Drive mechanism; 31. Extension plate; 32. Upright pole; 33. L-shaped concrete conveying pipe; 34. Electric control valve; 35. Servo motor one; 36. Active gear 4. Vibration mechanism; 41. Base plate; 42. Servo motor II; 43. Rotating rod; 44. Striking rubber ball; 5. Smoothing mechanism; 51. L-shaped bracket; 52. Servo motor III; 53. Moving groove; 54. Lead screw; 55. Slide rod; 56. Moving hanging plate; 57. Electric push rod; 58. V-shaped smoothing scraper; 59. Guide rod; 6. Recycling mechanism; 61. Concrete recycling round box; 62. Servo motor IV; 63. Mixing rod; 64. Scraper; 65. Discharge pipe. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] The equipment of this utility model is uniformly controlled by a PLC or microcontroller, which coordinates the actions of the drive mechanism 3, vibration mechanism 4, surface-applying mechanism 5 and recycling mechanism 6 to achieve automated production. The PLC controls the start, stop, speed and direction of the servo motor and the opening and closing timing of the electric control valve through a preset program to ensure that each station operates in sequence.

[0017] like Figure 1 As shown, a railway bridge pedestrian slab finishing device includes an annular base 1, a drive mechanism 3 is provided on the right side of the annular base 1, a vibration mechanism 4 is provided on the front side of the annular base 1, a finishing mechanism 5 is provided on the left side of the annular base 1, a recycling mechanism 6 is provided on the inner ring of the annular base 1, an annular turntable 11 is fixedly installed on the top of the annular base 1, a plurality of mold positioning mechanisms 2 are fixedly installed in an annular array on the top of the annular base 1, and an external gear ring 12 is fixedly installed on the side wall of the annular turntable 11. The drive mechanism 3 includes an extension plate 31, a vertical rod 32 fixedly installed on the top of the extension plate 31, an L-shaped concrete conveying pipe 33 fixedly installed on the top of the vertical rod 32, the bottom output end of the vertical part of the L-shaped concrete conveying pipe 33 is located directly above one of the mold positioning mechanisms 2, an electric control valve 34 is provided on the outer wall of the vertical part of the L-shaped concrete conveying pipe 33, the electric control valve 34 adopts an electric control gate valve design, and controls the flow of concrete by vertically lifting the gate. The gate moves vertically, perpendicular or nearly perpendicular to the direction of concrete flow, with strong shear force, suitable for concrete pumping, and used to control the concrete output. A servo motor 35 is fixedly installed at the bottom of the extension plate 31, the output shaft of the servo motor 35 passes through to the top of the extension plate 31 and a drive gear 36 is fixedly installed thereon, the drive gear 36 meshes with the external gear ring 12.

[0018] like Figure 2 As shown, the drive mechanism 3 drives the drive gear 36 to rotate via the servo motor 35. The drive gear 36 meshes with the external gear ring 12, thereby driving the annular turntable 11 to rotate. The annular turntable 11 drives the mold positioning mechanism 2 to pass through the concrete conveying, vibration and finishing stations in sequence. The servo motor 35 is controlled by a PLC to realize the intermittent rotation of the annular turntable 11. Each rotation angle is a fixed value, for example, 90 degrees each time, corresponding to 4 mold positioning mechanisms, so that each mold positioning mechanism 2 stops accurately at the concrete injection, vibration and finishing station in sequence; the rotation interval time is adjustable, usually 10 to 30 seconds, to ensure that each station has enough processing time.

[0019] like Figure 3 As shown, the mold positioning mechanism 2 includes an L-shaped base plate 21. The L-shaped base plate 21 is located vertically away from the center of the annular turntable 11. The L-shaped base plate 21 has a drive chamber 22. A positive and negative threaded rod 23 is rotatably installed on one side of the inner wall of the drive chamber 22. The other end of the positive and negative threaded rod 23 passes through the side wall of the L-shaped base plate 21 and is fixedly installed with a rotating handle 24. The outer walls of the positive and negative threaded rod 23 have opposite threaded walls on both sides. A movable plate 25 is threadedly installed on the outer walls of both threaded walls. A limit slide rod 29 is fixedly installed between the two sides of the inner wall of the drive chamber 22. Both movable plates 25 are slidably connected to the limit slide rod 29. Connecting rods are fixedly installed on the opposite sides of the two movable plates 25, and the other ends of the two connecting rods pass through to both sides of the L-shaped base plate 21 and are fixedly installed with L-shaped clamping plates 26. Rubber pads 27 are fixedly glued to the opposite ends of the two L-shaped clamping plates 26. A walking board mold 28 is set at the top of the horizontal position of the L-shaped base plate 21. One side of the walking board mold 28 is attached to the vertical position of the L-shaped base plate 21, and the other side extends to the upper part of the inner ring of the annular turntable 11. By rotating the handle 24, the positive and negative threaded rods 23 rotate, driving the two moving plates 25 to move towards or away from each other along the limiting slide bar 29, thereby clamping or releasing the walking plate mold 28 through the L-shaped clamping plate 26. The rubber pad 27 provides cushioning and anti-slip function to ensure that the mold is fixed reliably.

[0020] like Figure 4 As shown, the vibration mechanism 4 includes a base plate 41, which is fixedly installed on the front side of the annular base 1. A servo motor 42 is fixedly installed on the top of the base plate 41. A number of rotating rods 43 are fixedly installed in an annular array on the outer wall of the output shaft of the servo motor 42. A striking rubber ball 44 is fixedly installed on the other end of each of the rotating rods 43. The striking rubber balls 44 strike the outer wall of the L-shaped base plate 21 in sequence. Servo motor 42 drives the rotating rod 43 to rotate, which strikes the rubber ball 44 periodically to strike the L-shaped base plate 21, generating vibration, which makes the concrete in the walking board mold 28 dense and removes air bubbles. The rotational speed of servo motor 42 is set to 50-100 revolutions per minute. The vibration frequency can be controlled by adjusting the rotational speed. The striking force of the rubber ball 44 is adjusted by selecting rubber materials of different hardness to ensure that the concrete is fully compacted and air bubbles are eliminated, while avoiding excessive vibration that could cause the mold to shift.

[0021] like Figure 5 As shown, the surface-applying mechanism 5 includes an L-shaped bracket 51 fixedly installed on the left side of the annular base 1. A servo motor 52 is fixedly installed on the left side of the vertical part of the L-shaped bracket 51. A vertically penetrating moving groove 53 is opened on the horizontal part of the L-shaped bracket 51. The output shaft of the servo motor 52 passes through the inner side of the moving groove 53 and a lead screw 54 is fixedly installed thereon. A moving hanging plate 56 is threaded on the outer wall of the lead screw 54. A sliding rod 55 is fixedly installed between the left and right sides of the inner ring of the moving groove 53. The moving hanging plate 56 is slidably connected to the sliding rod 55. An electric push rod 57 and a guide rod 59 are fixedly installed at the bottom of the movable hanging plate 56. The guide rod 59 is located on one side of the electric push rod 57. A V-shaped trowel 58 is fixedly installed at the output end of the electric push rod 57. The bottom of the V-shaped trowel 58 is in contact with the top of the walking board mold 28. The V-shaped trowel 58 is slidably connected to the guide rod 59. The outer wall of the V-shaped trowel 58 is fixedly coated with a release agent. Servo motor 3 52 drives screw 54 to rotate, causing movable hanging plate 56 to move along slide bar 55. At the same time, electric push rod 57 controls the height of V-shaped trowel 58 to ensure it is in contact with the concrete surface and completes the troweling operation. Release agent 1 prevents concrete from sticking. The servo motor 52 is controlled by the PLC, which moves the movable plate 56 along the slide bar 55 at a constant speed. The pressure applied by the electric push rod 57 is adjustable to maintain appropriate contact between the V-shaped trowel 58 and the concrete surface. During the troweling process, the tilt angle of the V-shaped trowel 58 can be finely adjusted by adjusting the stroke of the electric push rod 57 to ensure a smooth and clean surface.

[0022] like Figure 6 As shown, the recycling mechanism 6 includes a concrete recycling cylinder 61. Several support legs are fixedly installed in a circular array at the bottom of the concrete recycling cylinder 61. The top of the concrete recycling cylinder 61 is located below the circular turntable 11. A servo motor 62 is fixedly installed at the center of the bottom of the concrete recycling cylinder 61. The output shaft of the servo motor 62 passes through the inner cavity of the concrete recycling cylinder 61, and a stirring rod 63 is fixedly installed on the outer wall. A scraper 64 is fixedly installed at the other end of the stirring rod 63. The scraper 64 fits against the inner ring of the concrete recycling cylinder 61. A discharge pipe 65 that passes through the bottom of its inner cavity is fixedly connected to the outer wall of the concrete recycling cylinder 61 for discharging the collected excess concrete for reuse. The inner wall of the concrete recycling cylinder 61 is fixedly coated with a release agent. Servo motor 4 62 drives the mixing rod 63 and scraper 64 to rotate, preventing the concrete from solidifying, and discharges the collected concrete through discharge pipe 65. Release agent 2 prevents the concrete from adhering to the inner wall of the recycling bin. Servo motor 62 rotates continuously at low speed to prevent concrete from solidifying. The discharge pipe 65 is equipped with a pneumatic or electric valve, which is controlled by PLC to open periodically, for example, once after processing 10 molds to discharge the recycled concrete. The design of the mixing rod 63 and scraper 64 ensures that the concrete is mixed evenly and avoids sedimentation.

[0023] The working principle of this railway bridge pedestrian slab finishing equipment will be explained in detail below.

[0024] like Figure 1-6As shown, the operator places the walkway mold 28 on the L-shaped base plate 21, and drives the positive and negative threaded rods 23 to rotate by rotating the rotating handle 24, causing the two moving plates 25 to move towards each other along the limiting slide bar 29, driving the L-shaped clamping plate 26 to clamp the walkway mold 28. The rubber pad 27 provides cushioning and anti-slip to ensure the mold is stably fixed. The external concrete supply system is connected to the L-shaped concrete delivery pipe 33. When the mold positioning mechanism 2 rotates with the annular turntable 11 to below the L-shaped concrete delivery pipe 33, the electric control valve 34 opens, and concrete is injected into the walkway mold 28. The electric control valve 34 precisely controls the concrete output to avoid waste. The servo motor... 35 operates, driving the drive gear 36 to rotate. The drive gear 36 meshes with the external gear ring 12, causing the annular turntable 11 to rotate intermittently or continuously. This causes the mold positioning mechanism 2 to pass sequentially through the vibration mechanism 4 and the finishing mechanism 5. When the walking board mold 28 passes the vibration mechanism 4, the servo motor 22 drives the rotating rod 43 to rotate. The striking rubber ball 44 at the end of the rotating rod 43 periodically strikes the L-shaped base plate 21, generating vibration, which densifies the concrete inside the mold, removes air bubbles, and improves the uniformity of the concrete. When the walking board mold 28 reaches the finishing mechanism 5, the servo motor 32 drives the lead screw 54 to rotate, causing the moving hanging plate 56 to move along the slide rod 55. At the same time, the electric push rod 57 pushes the V-shaped trowel 58 downward, so that its bottom is in contact with the concrete surface. The movement of the movable hanging plate 56 drives the V-shaped trowel 58 to smooth the concrete surface. Release agent one prevents concrete from sticking and ensures a smooth surface. During the concrete injection and troweling process, excess concrete falls into the concrete recycling box 61 in the inner ring of the annular turntable 11. Servo motor four 62 drives the mixing rod 63 and the trowel 64 to rotate to prevent the concrete from solidifying and discharge it through the discharge pipe 65 for reuse. Release agent two prevents concrete from sticking to the inner wall of the recycling box. The equipment runs continuously, and the annular turntable 11 drives multiple mold positioning mechanisms 2 This cyclical operation automates the concrete injection, vibration compaction, and finishing process, improving production efficiency and product quality consistency. Through automated design, this invention reduces manual labor, ensuring uniform and standardized finishing quality, and is suitable for mass production of railway bridge walkway slabs. The entire equipment's work cycle is precisely controlled by a PLC, and the processing time for each station can be adjusted according to the concrete properties: concrete injection time is typically 10–20 seconds, vibration time is typically 15–30 seconds, and finishing time is typically 10–15 seconds. The rotation interval of the annular turntable 11 matches these times, ensuring a continuous and stable production cycle.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A railway bridge pedestrian slab finishing device, comprising an annular base (1), characterized in that: A driving mechanism (3) is provided on the right side of the annular base (1), a vibration mechanism (4) is provided on the front side of the annular base (1), a smoothing mechanism (5) is provided on the left side of the annular base (1), a recycling mechanism (6) is provided on the inner ring of the annular base (1), an annular turntable (11) is fixedly installed on the top of the annular base (1), a number of mold positioning mechanisms (2) are fixedly installed in an annular array on the top of the annular base (1), an external gear ring (12) is fixedly installed on the side wall of the annular turntable (11), the driving mechanism (3) includes an extension plate (31), and the top of the extension plate (31) is fixedly installed with... There is a pole (32), and an L-shaped concrete conveying pipe (33) is fixedly installed on the top of the pole (32). The bottom output end of the vertical part of the L-shaped concrete conveying pipe (33) is located directly above one of the several mold positioning mechanisms (2). An electric control valve (34) is provided on the outer wall of the vertical part of the L-shaped concrete conveying pipe (33) to control the concrete output. A servo motor (35) is fixedly installed on the bottom of the extension plate (31). The output shaft of the servo motor (35) extends through to the top of the extension plate (31) and a drive gear (36) is fixedly installed thereon. The drive gear (36) meshes with the external gear ring (12).

2. The railway bridge pedestrian slab finishing equipment according to claim 1, characterized in that: Each of the aforementioned mold positioning mechanisms (2) includes an L-shaped base plate (21). The L-shaped base plate (21) is located vertically away from the center of the annular turntable (11). The L-shaped base plate (21) has a drive chamber (22). A positive and negative threaded rod (23) is rotatably installed on one side of the inner wall of the drive chamber (22). The other end of the positive and negative threaded rod (23) passes through the side wall of the L-shaped base plate (21) and is fixedly installed with a rotating handle (24). The outer walls of the positive and negative threaded rod (23) are respectively provided with threaded walls with opposite threads. The outer walls of the two threaded walls are threaded with movable plates (25). A limit slide rod (29) is fixedly installed between the two sides of the inner wall of the drive chamber (22). The two movable plates (25) are slidably connected to the limit slide rod (29).

3. The railway bridge pedestrian slab finishing equipment according to claim 2, characterized in that: Connecting rods are fixedly installed on the opposite sides of the two movable plates (25), and the other ends of the two connecting rods pass through to both sides of the L-shaped base plate (21) and are fixedly installed with L-shaped clamps (26). Rubber pads (27) are fixedly glued to the opposite ends of the two L-shaped clamps (26). A walking board mold (28) is provided at the top of the horizontal position of the L-shaped base plate (21). One side of the walking board mold (28) is attached to the vertical position of the L-shaped base plate (21), and the other side extends to the upper part of the inner ring of the annular turntable (11).

4. The railway bridge pedestrian slab finishing equipment according to claim 1, characterized in that: The vibration mechanism (4) includes a base plate (41), which is fixedly installed on the front side of the annular base (1). A servo motor (42) is fixedly installed on the top of the base plate (41). A number of rotating rods (43) are fixedly installed in an annular array on the outer wall of the output shaft of the servo motor (42). A striking rubber ball (44) is fixedly installed on the other end of each of the rotating rods (43). The striking rubber balls (44) strike the outer wall of the L-shaped base plate (21) in sequence.

5. The railway bridge pedestrian slab finishing equipment according to claim 1, characterized in that: The smearing mechanism (5) includes an L-shaped bracket (51) fixedly installed on the left side of the annular base (1). A servo motor (52) is fixedly installed on the left side of the vertical part of the L-shaped bracket (51). A vertically penetrating moving groove (53) is opened on the horizontal part of the L-shaped bracket (51). The output shaft of the servo motor (52) passes through the inner side of the moving groove (53) and a lead screw (54) is fixedly installed. A moving hanging plate (56) is threaded on the outer wall of the lead screw (54). A sliding rod (55) is fixedly installed between the left and right sides of the inner ring of the moving groove (53). The moving hanging plate (56) and the sliding rod (55) are slidably connected.

6. The railway bridge pedestrian slab finishing equipment according to claim 5, characterized in that: An electric push rod (57) and a guide rod (59) are fixedly installed at the bottom end of the movable hanging plate (56). The guide rod (59) is located on one side of the electric push rod (57). A V-shaped trowel (58) is fixedly installed at the output end of the electric push rod (57). The bottom of the V-shaped trowel (58) is in contact with the top of the walking board mold (28). The V-shaped trowel (58) is slidably connected to the guide rod (59). The outer wall of the V-shaped trowel (58) is fixedly coated with a release agent.

7. The railway bridge pedestrian slab finishing equipment according to claim 1, characterized in that: The recycling mechanism (6) includes a concrete recycling cylinder (61). Several support legs are fixedly installed in a circular array at the bottom of the concrete recycling cylinder (61). The top of the concrete recycling cylinder (61) is located below the circular turntable (11). A servo motor (62) is fixedly installed at the center of the bottom of the concrete recycling cylinder (61). The output shaft of the servo motor (62) passes through the inner cavity of the concrete recycling cylinder (61) and a stirring rod (63) is fixedly installed on the outer wall. A scraper (64) is fixedly installed at the other end of the stirring rod (63). The scraper (64) fits against the inner ring of the concrete recycling cylinder (61). A discharge pipe (65) that passes through the bottom of the inner cavity is fixedly connected to the outer wall of the concrete recycling cylinder (61) for discharging the collected excess concrete for reuse. The inner wall of the concrete recycling cylinder (61) is fixedly coated with a release agent.

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