Rail structure suitable for bridge steel bridge deck ultra high performance concrete pavement

Abstract

This utility model provides a track structure suitable for ultra-high performance concrete paving of steel bridge decks, relating to the field of concrete paving technology. It includes a paving mechanism comprising a storage cavity with a protective ring and a mixer within the protective ring. In this utility model, the concrete to be paved is poured into the storage cavity, and a working motor is started, causing the motor to rotate a auger. This allows the mixer, engaged with the outer surface of the auger, to rotate and adjust. The two ends of the mixer are respectively engaged with the protective ring for limited rotation, mixing the concrete and allowing it to flow into the storage cavity away from the working motor, lifting a baffle plate for paving. During paving, workers can move the track along a sliding frame using pulleys, thus improving its practicality in actual use.

Description

Technical Field

[0001] This utility model relates to the field of concrete paving technology, and in particular to a track structure suitable for ultra-high performance concrete paving of bridge steel decks. Background Technology

[0002] With the rapid development of long-span bridge construction, ultra-high performance concrete (UHPC) pavement technology for steel bridge decks has become a core technology for ensuring the stability and service life of bridge deck structures due to its high strength, high durability, and fatigue resistance. During construction, UHPC requires precise integrated equipment for mixing, conveying, and laying to achieve uniform material distribution, avoiding problems such as interlayer delamination and cracking caused by uneven mixing, insufficient fluidity, or deviations in paving thickness. Traditional paving equipment often uses a separate design of fixed mixing tanks and independent material placement devices, requiring repeated concrete transfers, which can easily lead to material segregation or construction interruptions. At the same time, existing track-type material placement structures are limited by transmission efficiency and mobility, making it difficult to achieve continuous, high-precision paving operations on narrow steel bridge decks. Therefore, there is an urgent need for a track structure that integrates mixing, conveying, and adaptive movement functions to meet the demands of modern bridge engineering for efficient and high-quality construction.

[0003] Existing ultra-high performance concrete (UHVPC) paving equipment suffers from several drawbacks in practical applications. The separate design of the mixing system and the placing device makes the concrete susceptible to environmental influences during transfer, leading to loss of fluidity or localized hardening. Traditional screw-driven structures, with their rigid connections and lack of dynamic limiting and buffering design for the mixer, are prone to vibration or transmission failure due to sudden changes in material resistance, resulting in reduced mixing efficiency or even equipment jamming. The placing track often relies on manual pushing or a single motor drive, resulting in poor trajectory accuracy and difficulty in achieving uniform and continuous paving in complex bridge deck environments, easily leading to uneven thickness or joint defects. Furthermore, existing mixing chamber protection measures are weak, and long-term impact from the high-strength aggregates of UHVPC can cause structural wear or deformation, further affecting equipment lifespan and construction quality. Therefore, we offer a track structure suitable for UHVPC paving of steel bridge decks. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a track structure suitable for ultra-high performance concrete paving of bridge steel decks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a track structure suitable for ultra-high performance concrete paving of steel bridge decks, comprising: a paving mechanism, the paving mechanism including a storage cavity, a protective ring provided on the storage cavity, a stirrer provided in the protective ring, a spiral rod provided at the bottom of the stirrer, a working motor provided at one end of the spiral rod, a cover frame provided on the side of the storage cavity away from the working motor, a cover baffle provided on one side of the cover frame, and a moving mechanism provided on the outer surface of one end of the storage cavity;

[0006] The moving mechanism includes a sliding frame with pulleys, and a connecting frame between two sliding frames.

[0007] In a preferred embodiment, the bottom of the pulley in the sliding frame is provided with a frame mechanism, the frame mechanism includes an adjustable support frame, one end of the adjustable support frame is provided with an adjustable crossbar, the adjustable crossbar is provided with a slide rail, and one side of the slide rail is provided with a paving movable frame.

[0008] In a preferred embodiment, the bottom of the adjusting crossbeam is welded to the adjusting support frame, the slide rail is limited on the adjusting crossbeam for sliding adjustment, and the two ends of the paving moving frame are respectively welded between two slide rails.

[0009] In a preferred embodiment, the outer surface of the protective ring is nested in the storage cavity, both ends of the stirrer are nested in the protective ring, and the outer surface of the bottom of the stirrer is engaged in the spiral rod.

[0010] In a preferred embodiment, one end of the screw rod is connected to the working motor, one side of the working motor is welded to the storage cavity, and one end of the cover frame is connected to the side of the storage cavity away from the working motor.

[0011] In a preferred embodiment, one side of the cover baffle is welded to one side of the cover frame, the two sliding frames are respectively mounted on both sides of the outer surface of the storage cavity, and the two ends of the connecting frame are respectively welded between the two sliding frames.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention involves pouring the concrete to be laid into a storage chamber, then starting a working motor to drive a auger. This causes the mixer, which meshes with the outer surface of the auger, to rotate. The two ends of the mixer are connected to protective rings for limiting rotation, thus mixing the concrete. The concrete flows into the storage chamber away from the working motor, lifting the cover baffle and allowing it to flow out for laying. During the laying process, workers can move the concrete along a sliding frame using pulleys, thereby improving its practicality in actual use. Attached Figure Description

[0014] Figure 1 This utility model provides a schematic diagram of a track structure suitable for ultra-high performance concrete paving of bridge steel decks.

[0015] Figure 2 This is an exploded view of the track structure provided by this utility model for use in ultra-high performance concrete paving of bridge steel decks.

[0016] Figure 3 This utility model provides a schematic diagram of the paving mechanism and the moving mechanism for a track structure suitable for ultra-high performance concrete paving of bridge steel decks.

[0017] Figure 4 This utility model provides a schematic diagram of the frame structure for a track structure suitable for ultra-high performance concrete paving of bridge steel decks.

[0018] Legend:

[0019] 1. Paving mechanism; 11. Storage chamber; 12. Protective ring; 13. Mixer; 14. Spiral rod; 15. Working motor; 16. Covering frame; 17. Covering baffle;

[0020] 2. Moving mechanism; 21. Sliding frame; 22. Pulley; 23. Connecting frame;

[0021] 3. Frame structure; 31. Adjustable support frame; 32. Adjustable crossbeam; 33. Slide rail; 34. Paving moving frame. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0023] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Example 1

[0028] like Figure 1-4 As shown, this utility model provides a technical solution: a track structure suitable for ultra-high performance concrete paving of steel bridge decks, including: a paving mechanism 1, the paving mechanism 1 including a storage cavity 11, a protective ring 12 provided on the storage cavity 11, a stirrer 13 provided in the protective ring 12, a spiral rod 14 provided at the bottom of the stirrer 13, a working motor 15 provided at one end of the spiral rod 14, a cover frame 16 provided on the side of the storage cavity 11 away from the working motor 15, a cover baffle 17 provided on one side of the cover frame 16, and a moving mechanism 2 provided on the outer surface of one end of the storage cavity 11;

[0029] The moving mechanism 2 includes a sliding frame 21, in which a pulley 22 is provided, and a connecting frame 23 is provided between two sliding frames 21;

[0030] The outer surface of the protective ring 12 is nested in the storage cavity 11. Both ends of the stirrer 13 are nested in the protective ring 12. The outer surface of the bottom of the stirrer 13 is engaged in the spiral rod 14. One end of the spiral rod 14 is connected to the working motor 15. One side of the working motor 15 is welded to the storage cavity 11. One end of the cover frame 16 is connected to the side of the storage cavity 11 away from the working motor 15. One side of the cover baffle 17 is welded to one side of the cover frame 16. Two sliding frames 21 are respectively mounted on both sides of the outer surface of the storage cavity 11. Both ends of the connecting frame 23 are respectively welded between the two sliding frames 21.

[0031] In this embodiment, when using this paving device to pave a steel bridge, the worker can pour the concrete to be paved into the storage chamber 11, and then start the working motor 15. This will cause the working motor 15 to drive the spiral rod 14 to rotate, which will cause the agitator 13 engaged on the outer surface of the spiral rod 14 to rotate and adjust. The two ends of the agitator 13 are respectively connected to the protective ring 12 for limited rotation to mix the concrete. The concrete flows into the storage chamber 11 away from the working motor 15 and lifts the cover baffle 17 to pave it. During the paving process, the worker can drive the pulley 22 to move it in the sliding frame 21 for paving, thereby improving its practicality in actual use.

[0032] Example 2

[0033] like Figure 1-4 As shown, a frame mechanism 3 is provided at the bottom of the pulley 22 in the sliding frame 21. The frame mechanism 3 includes an adjusting support frame 31. An adjusting crossbar 32 is provided at one end of the adjusting support frame 31. A slide rail 33 is provided on the adjusting crossbar 32. A paving moving frame 34 is provided on one side of the slide rail 33.

[0034] The bottom of the adjusting crossbeam 32 is welded to the adjusting support frame 31, and the slide rail 33 is limited on the adjusting crossbeam 32 for sliding adjustment. The two ends of the paving moving frame 34 are respectively welded between the two slide rails 33.

[0035] In this embodiment, to further improve its practicality in actual use, a corresponding paving moving frame 34 is provided at the bottom of the pulley 22. The two ends of the paving moving frame 34 are respectively welded to two slide rails 33. The slide rails 33 can be slightly adjusted on the adjusting crossbeam 32. The adjusting support frame 31 at the bottom of the adjusting crossbeam 32 can be adjusted in height according to the needs of the working environment, thereby further improving its practicality in actual use.

[0036] Working principle:

[0037] like Figure 1-4 As shown, when using this paving device to pave a steel bridge, the workers first pour the concrete to be paved into the storage chamber 11 to prepare for the subsequent paving work. Next, the workers start the working motor 15, and by controlling the motor's switch, drive the auger 14 to rotate. The rotation of the auger 14 causes the mixer 13, which meshes with its outer surface, to rotate accordingly, starting to mix the concrete to ensure its uniformity and workability.

[0038] The two ends of the mixer 13 are fixed and limited by protective rings 12 to ensure that it does not deviate from the predetermined trajectory due to excessive rotation during operation. In this way, the mixer 13 can stably mix the concrete in the storage chamber 11, ensuring that it maintains good fluidity even when flowing into the storage chamber 11 away from the working motor 15. During the mixing process, the concrete gradually flows into the storage chamber 11 and flows out smoothly for laying through the action of the top of the covering baffle 17.

[0039] During the laying process, workers can drive the pulley 22 to move it smoothly within the sliding frame 21, thus successfully completing the laying task. The design of the pulley 22 allows workers to easily control the laying path and speed, improving work efficiency and greatly enhancing the flexibility and ease of operation of the device.

[0040] To further enhance the adaptability and practicality of the equipment in actual use, a paving moving frame 34 is provided at the bottom of the pulley 22. The two ends of the paving moving frame 34 are welded to two slide rails 33, which can be slightly adjusted on the adjusting crossbeam 32. This design allows workers to precisely adjust the paving path according to different paving requirements, thus coping with various complex construction environments.

[0041] The bottom of the adjusting crossbeam 32 is also equipped with an adjusting support frame 31, allowing workers to adjust the height of the support frame 31 according to the needs of the actual working environment. This adjustment function enables the device to operate flexibly on construction platforms at different heights, ensuring the accuracy and effectiveness of concrete paving. Through this series of precise adjustment functions, this device can provide extremely high operational precision and efficiency in the paving process of steel bridges, thereby further enhancing the practicality and adaptability of the equipment.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0043] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Track structure suitable for use in bridge steel bridge deck ultra-high performance concrete pavement, characterized by, include: The paving mechanism (1) includes a storage cavity (11), a protective ring (12) is provided on the storage cavity (11), a stirrer (13) is provided in the protective ring (12), a spiral rod (14) is provided at the bottom of the stirrer (13), a working motor (15) is provided at one end of the spiral rod (14), a cover frame (16) is provided on the side of the storage cavity (11) away from the working motor (15), a cover baffle (17) is provided on one side of the cover frame (16), and a moving mechanism (2) is provided on the outer surface of one end of the storage cavity (11). The moving mechanism (2) includes a sliding frame (21), in which a pulley (22) is provided, and a connecting frame (23) is provided between two sliding frames (21).

2. A track structure suitable for use in bridge steel bridge deck ultra-high performance concrete pavement according to claim 1, characterized in that: The bottom of the pulley (22) in the sliding frame (21) is provided with a frame mechanism (3). The frame mechanism (3) includes an adjustable support frame (31). One end of the adjustable support frame (31) is provided with an adjustable crossbar (32). A slide rail (33) is provided on the adjustable crossbar (32). A paving moving frame (34) is provided on one side of the slide rail (33).

3. The track structure suitable for use in bridge steel bridge deck ultra-high performance concrete pavement according to claim 2, characterized in that: The bottom of the adjusting crossbeam (32) is welded to the adjusting support frame (31), the slide rail (33) is limited on the adjusting crossbeam (32) for sliding adjustment, and the two ends of the paving moving frame (34) are respectively welded between the two slide rails (33).

4. The track structure suitable for use in bridge steel bridge deck ultra-high performance concrete pavement according to claim 1, characterized in that: The outer surface of the protective ring (12) is nested in the storage cavity (11), and the two ends of the stirrer (13) are respectively nested in the protective ring (12). The outer surface of the bottom of the stirrer (13) is engaged in the spiral rod (14).

5. The track structure suitable for use in bridge steel bridge deck ultra-high performance concrete pavement of claim 1, wherein: One end of the spiral rod (14) is connected to the working motor (15), one side of the working motor (15) is welded to the storage cavity (11), and one end of the cover frame (16) is connected to the side of the storage cavity (11) away from the working motor (15).

6. The track structure for ultra-high performance concrete pavement of steel bridge decks according to claim 1, characterized in that: One side of the cover baffle (17) is welded to one side of the cover frame (16), and the two sliding frames (21) are respectively mounted on both sides of the outer surface of the storage cavity (11). The two ends of the connecting frame (23) are respectively welded between the two sliding frames (21).

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