A precast beam assembly line

By installing moving parts within the frame in the precast beam production line to drive the alternating movement of steam pipes, the problem of steam not being able to evenly cover the surface of the precast beams was solved, achieving efficient curing of the precast beams and ensuring the rapid attainment of compressive strength.

CN224275556UActive Publication Date: 2026-05-26SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the existing precast beam production process, the steam curing device cannot evenly cover the surface of the precast beam, resulting in insufficient curing.

Method used

By installing moving parts within the frame in the precast beam production line, two sets of installation parts are driven to make the steam pipe move back and forth alternately along the length of the precast beam, and steam is sprayed out through steam nozzles to ensure that the steam evenly covers the entire surface of the precast beam.

Benefits of technology

This ensures uniform steam coverage, avoids insufficient curing, improves the curing efficiency of precast beams, and guarantees that precast beams reach the required compressive strength in a short time.

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Abstract

This utility model discloses a precast beam assembly line, relating to the field of precast beam production technology. It includes: a base plate with guide rails, a conveyor trolley slidably embedded in the inner wall of the guide rails, a steam curing chamber fixedly mounted on the top of the outer wall of the base plate, and multiple steam curing mechanisms. Each steam curing mechanism is located on the inner wall of the steam curing chamber. Each steam curing mechanism includes a mounting frame, a moving component, two sets of mounting components, two steam pipes, and multiple steam nozzles. The mounting frame is fixedly mounted on one side of the inner wall of the steam curing chamber, and the moving component is located within the mounting frame. This precast beam assembly line uses the moving component within the mounting frame to drive the two sets of mounting components, allowing the two steam pipes to move alternately back and forth along the length of the precast beam. Steam is then sprayed through the steam nozzles, ensuring that the steam evenly covers the entire surface of the precast beam. This avoids the situation where steam is only sprayed at a fixed position, resulting in uneven coverage and insufficient curing.
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Description

Technical Field

[0001] This utility model relates to the field of precast beam production technology, specifically a precast beam assembly line. Background Technology

[0002] Precast beams are an important component of bridge engineering. The quality of precast beams and the construction progress are important factors affecting the performance of construction contracts. The precast beam assembly line is a factory-style production method, mainly used to produce precast beams. Steam curing is a step in the precast beam assembly line. Steam curing can accelerate the hydration reaction of concrete and plays a key role in the precast beam production process. It can enable precast beams to reach the required compressive strength in a short time, which can significantly reduce the construction period.

[0003] In the production of precast beams, the curing of precast concrete components is a crucial step. Most precast beam steam curing devices use fixed steam pipes, and the steam coverage and jet angle are fixed. The steam cannot evenly cover the entire surface of the precast beam, which can easily lead to insufficient curing. Utility Model Content

[0004] This utility model provides a precast beam production line. The moving parts in the mounting frame drive two sets of mounting parts, so that two steam pipes can move back and forth alternately along the length of the precast beam. Steam is sprayed out through steam nozzles to ensure that the steam can evenly cover the entire surface of the precast beam. This avoids the situation where the steam can only be sprayed in a fixed position, which would result in the steam not being evenly covered on the entire surface of the precast beam and causing insufficient curing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precast beam assembly line, comprising:

[0006] A base plate equipped with guide rails;

[0007] The conveyor is slidably embedded in the inner wall of the guide rail;

[0008] The steam curing box is fixedly installed on the top of the outer wall of the base plate;

[0009] The steam curing mechanism is provided in multiple sets. Each set of the steam curing mechanism is located on the inner wall of the steam curing chamber. Each set of the steam curing mechanism includes a mounting frame, a moving part, two sets of mounting parts, two steam pipes, and multiple steam nozzles. The mounting frame is fixedly set on one side of the inner wall of the steam curing chamber. The moving part is located inside the mounting frame. Each set of mounting parts is located on the moving part. Each steam pipe is located on the mounting part. Each steam nozzle is installed horizontally at equal intervals on one side of the outer wall of the steam pipe.

[0010] Furthermore, each set of moving parts includes a first forward and reverse motor, a first gear, and two sets of movable components. The first forward and reverse motor is bolted to one side of the inner wall of the mounting frame, the first gear is fixedly sleeved on the output end of the first forward and reverse motor, and each set of movable components is located inside the mounting frame.

[0011] Furthermore, each set of the movable components includes a rack, a connecting rod, and a movable hole. The movable hole is opened on one side of the outer wall of the mounting frame. The connecting rod is slidably embedded in the inner wall of the movable hole. The rack is fixedly set on one side of the outer wall of the connecting rod, and the rack meshes with the first gear.

[0012] Furthermore, each set of the installation components includes a mounting plate, two mounting brackets, and an adjustment assembly. The mounting plate is fixedly disposed on one side of the outer wall of the connecting rod, each mounting bracket is fixedly disposed on one side of the outer wall of the mounting plate, the adjustment assembly is disposed on the mounting plate, and each steam pipe is rotatably embedded in the inner wall of the mounting bracket.

[0013] Furthermore, each set of adjustment components includes a second forward and reverse motor, a second gear, and a third gear. The second forward and reverse motor is bolted to one side of the outer wall of the mounting plate. The second gear is fixedly sleeved on the output end of the second forward and reverse motor. The third gear is fixedly sleeved on the outer wall of the steam pipe, and the third gear meshes with the second gear.

[0014] Furthermore, each of the steam pipes is provided with a steam hose on one side of its outer wall, and a connecting pipe is fixed between every two steam hoses.

[0015] This utility model provides a precast beam assembly line. It has the following advantages: This precast beam assembly line uses moving parts within the mounting frame to drive two sets of mounting components, enabling two steam pipes to move alternately back and forth along the length of the precast beam. Steam is then sprayed out through steam nozzles, ensuring that the steam can evenly cover the entire surface of the precast beam. This avoids the situation where steam can only be sprayed at a fixed position, resulting in uneven coverage and insufficient curing. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a sectional view of the mounting frame of this utility model;

[0019] Figure 4 This is a schematic diagram of the steam curing mechanism of this utility model;

[0020] Figure 5This is an exploded view of the steam curing mechanism of this utility model;

[0021] Figure 6 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. Base plate; 2. Guide rail; 3. Conveyor vehicle; 4. Steam curing chamber; 5. Steam curing mechanism; 501. Mounting frame; 502. Steam pipe; 503. Steam nozzle; 504. First forward / reverse motor; 505. First gear; 506. Rack; 507. Connecting rod; 508. Moving hole; 509. Mounting plate; 510. Mounting bracket; 511. Second forward / reverse motor; 512. Second gear; 513. Third gear; 6. Steam hose; 7. Connecting pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a precast beam assembly line, comprising:

[0025] A base plate 1 with guide rail 2;

[0026] The conveyor 3 is slidably embedded in the inner wall of the guide rail 2;

[0027] The steam curing box 4 is fixedly installed on the top of the outer wall of the base plate 1;

[0028] The steam curing mechanism 5 is provided in multiple sets. Each set of steam curing mechanism 5 is located on the inner wall of the steam curing chamber 4. Each set of steam curing mechanism 5 includes a mounting frame 501, a moving part, two sets of mounting parts, two steam pipes 502 and multiple steam nozzles 503. The mounting frame 501 is fixedly set on one side of the inner wall of the steam curing chamber 4. The moving part is located inside the mounting frame 501. Each set of mounting parts is located on the moving part. Each steam pipe 502 is located on the mounting part. Each steam nozzle 503 is installed equidistantly on one side of the outer wall of the steam pipe 502 in the horizontal direction.

[0029] In this implementation plan: the base plate 1 and the guide rail 2 are located between the precast beam production lines to facilitate the movement of the conveyor 3 between the raw material pretreatment area, steel bar processing area, mold preparation area, concrete pouring area, steam curing area and finished product output area in the precast beam production line. The conveyor 3 can transport the poured precast beams to the steam curing box 4. The steam curing box 4 is equipped with steam curing doors on both sides. Through the steam curing mechanism 5 in the steam curing box 4, the precast beams can reach the required compressive strength in a short time. The moving parts in the mounting frame 501 drive the two sets of mounting parts, so that the two steam pipes 502 can move back and forth alternately along the length of the precast beam. Steam is sprayed out through the steam nozzle 503 to ensure that the steam can evenly cover the entire surface of the precast beam, avoiding insufficient or excessive curing, thereby improving curing efficiency.

[0030] Specifically, each set of moving parts includes a first forward and reverse motor 504, a first gear 505, and two sets of movable components. The first forward and reverse motor 504 is bolted to one side of the inner wall of the mounting frame 501, and the first gear 505 is fixedly sleeved on the output end of the first forward and reverse motor 504. Each set of movable components is located inside the mounting frame 501.

[0031] In this embodiment: when the first forward and reverse motor 504 is energized, it drives the first gear 505 to rotate, which in turn drives two sets of movable components, which in turn drive the mounting plate 509 to move.

[0032] Specifically, each set of movable components includes a rack 506, a connecting rod 507, and a moving hole 508. The moving hole 508 is opened on one side of the outer wall of the mounting frame 501. The connecting rod 507 is slidably embedded in the inner wall of the moving hole 508. The rack 506 is fixedly set on one side of the outer wall of the connecting rod 507, and the rack 506 meshes with the first gear 505.

[0033] In this embodiment, each pair of racks 506 is located at the top and bottom of the first gear 505. As the first gear 505 rotates, it can simultaneously drive the two racks 506 to move, so that the racks 506 drive the connecting rod 507 to slide within the moving hole 508.

[0034] Specifically, each set of installation components includes a mounting plate 509, two mounting brackets 510, and an adjustment assembly. The mounting plate 509 is fixedly installed on one side of the outer wall of the connecting rod 507, each mounting bracket 510 is fixedly installed on one side of the outer wall of the mounting plate 509, the adjustment assembly is installed on the mounting plate 509, and each steam pipe 502 is rotatably embedded in the inner wall of the mounting bracket 510.

[0035] In this embodiment: Two mounting brackets 510 on the mounting plate 509 are used for the installation and placement of the steam pipe 502. As the connecting rod 507 moves, it can drive the steam pipe 502 on the mounting bracket 510 to move, so that the steam is evenly sprayed on the precast beam, improving the curing efficiency and avoiding the situation where the steam can only be sprayed in a fixed position, resulting in the steam not being evenly covered on the entire surface of the precast beam and causing insufficient curing. By adjusting the component, the steam pipe 502 can be driven to rotate on the mounting bracket 510, changing the jet direction of the steam nozzle 503 to adapt to the curing needs of different precast beams.

[0036] Specifically, each set of adjustment components includes a second forward and reverse motor 511, a second gear 512, and a third gear 513. The second forward and reverse motor 511 is bolted to one side of the outer wall of the mounting plate 509. The second gear 512 is fixedly sleeved on the output end of the second forward and reverse motor 511. The third gear 513 is fixedly sleeved on the outer wall of the steam pipe 502, and the third gear 513 meshes with the second gear 512.

[0037] In this embodiment: when the second forward and reverse motor 511 is energized, it drives the second gear 512 to rotate, which in turn drives the third gear 513 to rotate the steam pipe 502 on the mounting bracket 510, thereby changing the jet direction of the steam nozzle 503. The power of the second forward and reverse motor 511, the first forward and reverse motor 504 and the conveyor 3 comes from an external power source, and they should be electrically connected to the external power source. The internal circuit principle and structure are common knowledge to those skilled in the art and will not be described in detail here. Their models can be selected according to the actual use.

[0038] Specifically, each steam pipe 502 has a steam hose 6 on one side of its outer wall, and a connecting pipe 7 is fixed between every two steam hoses 6.

[0039] In this embodiment: the steam hose 6 allows the steam pipe 502 to move flexibly, and the connecting pipe 7 connects it to an external steam generator to continuously and stably provide high-temperature and high-pressure steam. A control valve is installed on the connecting pipe 7.

[0040] In use, the precast beams after casting are transported to the steam curing chamber 4 via the conveyor vehicle 3. The first forward and reverse motor 504 is started, which drives the first gear 505 to rotate, driving the two racks 506 to move. The racks 506 drive the connecting rods 507 to slide in the moving holes 508, causing the steam pipes 502 on each mounting bracket 510 to move, so that the steam is evenly sprayed on the precast beam, improving the curing efficiency and avoiding the problem of steam being sprayed only in a fixed position, which would result in the steam not being evenly covered on the entire surface of the precast beam and causing insufficient curing. According to the curing requirements of the precast beam, the second forward and reverse motor 511 is started, which drives the second gear 512 to rotate, which drives the third gear 513 to rotate the steam pipes 502 on the mounting bracket 510, thereby changing the jet direction of the steam nozzles 503 and improving the curing effect.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precast beam assembly line characterized by, include: A base plate (1) with guide rails (2); The conveyor (3) is slidably embedded in the inner wall of the guide rail (2); The steam curing box (4) is fixedly installed on the top of the outer wall of the base plate (1); The steam curing mechanism (5) is provided in multiple groups. Each group of steam curing mechanisms (5) is located on the inner wall of the steam curing box (4). Each group of steam curing mechanisms (5) includes a mounting frame (501), a moving part, two sets of mounting parts, two steam pipes (502) and multiple steam nozzles (503). The mounting frame (501) is fixedly set on one side of the inner wall of the steam curing box (4). The moving part is located inside the mounting frame (501). Each set of mounting parts is located on the moving part. Each steam pipe (502) is located on the mounting part. Each steam nozzle (503) is installed equidistantly on one side of the outer wall of the steam pipe (502) in the horizontal direction.

2. The precast beam assembly line according to claim 1, characterized in that: Each set of moving parts includes a first forward and reverse motor (504), a first gear (505), and two sets of movable components. The first forward and reverse motor (504) is bolted to one side of the inner wall of the mounting frame (501). The first gear (505) is fixedly sleeved on the output end of the first forward and reverse motor (504). Each set of movable components is located inside the mounting frame (501).

3. The precast beam assembly line according to claim 2, characterized in that: Each set of the movable components includes a rack (506), a connecting rod (507), and a moving hole (508). The moving hole (508) is opened on one side of the outer wall of the mounting frame (501). The connecting rod (507) is slidably embedded in the inner wall of the moving hole (508). The rack (506) is fixedly disposed on one side of the outer wall of the connecting rod (507), and the rack (506) meshes with the first gear (505).

4. A precast beam assembly line according to claim 3, characterized in that: Each set of mounting components includes a mounting plate (509), two mounting brackets (510), and an adjustment assembly. The mounting plate (509) is fixedly disposed on one side of the outer wall of the connecting rod (507). Each mounting bracket (510) is fixedly disposed on one side of the outer wall of the mounting plate (509). The adjustment assembly is disposed on the mounting plate (509). Each steam pipe (502) is rotatably embedded in the inner wall of the mounting bracket (510).

5. A precast beam assembly line according to claim 4, characterized in that: Each set of adjustment components includes a second forward and reverse motor (511), a second gear (512), and a third gear (513). The second forward and reverse motor (511) is bolted to one side of the outer wall of the mounting plate (509). The second gear (512) is fixedly sleeved on the output end of the second forward and reverse motor (511). The third gear (513) is fixedly sleeved on the outer wall of the steam pipe (502), and the third gear (513) meshes with the second gear (512).

6. A precast beam assembly line according to claim 5, characterized in that: Each of the steam pipes (502) has a steam hose (6) on one side of its outer wall, and a connecting pipe (7) is fixed between every two steam hoses (6).