A modular adaptive concrete steel fiber electromagnetic orientation device

Abstract

This invention discloses an assembled adaptive concrete steel fiber electromagnetic orientation device, comprising several splicing units arranged in a polygonal structure. Each splicing unit includes: two hollow panels connected by a connecting component for disassembly and angle control; and electrical circuits housed within the hollow panels, with connecting components at both ends. Electrical circuits in adjacent splicing units are connected via these components. Fixed support points are provided on the sides of the hollow panels. This invention enables electromagnetic orientation of steel fibers within concrete at arbitrary angles, is simple to assemble, convenient to transport, highly adaptable, and allows adjustment of the coil size according to the dimensions of the cast-in-place specimen.

Description

Technical Field

[0001] This invention relates to the field of construction machinery, and in particular to an assembled adaptive concrete steel fiber electromagnetic orientation device. Background Technology

[0002] Steel fibers are the most commonly used reinforcing and toughening materials for concrete. The addition of steel fibers can significantly enhance the tensile, bending and crack resistance of concrete and improve its fracture toughness. If the steel fibers are oriented in a certain direction (angle) during the pouring stage, the "bridging effect" of steel fibers can be better utilized, and the mechanical properties of steel fiber reinforced concrete components in a certain direction can be improved. At present, common steel fiber orientation methods include flow orientation, electromagnetic orientation, and bar magnet orientation. All existing orientation methods have their own technical defects: (1) Flow orientation controls the orientation of steel fibers by controlling the outflow characteristics of concrete slurry during the pouring of the specimen. This method has low orientation efficiency and has a significant impact on the construction speed. (2) Electromagnetic orientation has high orientation efficiency, but its integrated design greatly limits its orientation angle and the range of oriented specimen sizes. At the same time, it cannot be used to orient cast-in-place beams and other components. (3) Bar magnet orientation does not require a power source and has a good orientation effect, but it can only be used to orient small specimens horizontally and cannot achieve multi-angle orientation. It is difficult to effectively orient large specimens. Therefore, there is an urgent need to develop a high-efficiency, widely applicable electromagnetic orientation device for concrete steel fibers. Summary of the Invention

[0003] The purpose of this invention is to provide an assembled adaptive concrete steel fiber electromagnetic orientation device to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a modular adaptive concrete steel fiber electromagnetic orientation device, comprising splicing units, wherein a plurality of splicing units are arranged in a polygonal structure, and each splicing unit includes:

[0005] Hollow sheet material, wherein two hollow sheet materials are provided, and the two hollow sheet materials are detachably connected and angle controlled by a connecting component;

[0006] The power supply line is disposed within the hollow sheet material, and each end of the power supply line is provided with a docking component. The power supply lines of adjacent splicing units are connected through the docking components.

[0007] The hollow sheet has a fixed support point on its side, and the hollow sheet is fixed at an angle by connecting the fixed support point through a connecting rod.

[0008] According to the assembled adaptive concrete steel fiber electromagnetic orientation device provided by the present invention, the power supply line includes a plurality of segmented wires, the plurality of segmented wires are arranged side by side at equal intervals in the hollow plate, the two ends of the segmented wires are respectively arranged corresponding to the ends of the two hollow plates that are far away from each other, and the two ends of the segmented wires are respectively provided with the docking components.

[0009] In this configuration, one end of the segmented wire is fixed to the end of one of the hollow panels, and the other end extends out of the other hollow panel.

[0010] According to the assembled adaptive concrete steel fiber electromagnetic orientation device provided by the present invention, the docking assembly includes a female docking terminal and a male docking terminal. One end of the segmented wire is fixed to the end of the hollow plate and is fixedly connected to the female docking terminal. The male docking terminal is fixedly connected to one end of the segmented wire extending out of the hollow plate. The female docking terminal and the male docking terminal are adapted to each other. A plurality of female docking terminals and a plurality of male docking terminals are fixed by fasteners.

[0011] According to the modular adaptive concrete steel fiber electromagnetic orientation device provided by the present invention, the fixing component includes a plastic cluster, and a plurality of female terminals are fixed to the ends of the hollow plate by the plastic cluster; a plurality of male terminals are fixed together by the plastic cluster.

[0012] According to the modular adaptive concrete steel fiber electromagnetic orientation device provided by the present invention, the connecting component includes a hinge plate, which can rotate arbitrarily within 0 to 180°, and the hinge plate is detachably connected to the hollow plate by bolts.

[0013] According to the modular adaptive concrete steel fiber electromagnetic orientation device provided by the present invention, the length of one end of the segmented wire that is fixedly connected to the male connector of the mating terminal that extends out of the hollow plate is 10cm-15cm.

[0014] According to the modular adaptive concrete steel fiber electromagnetic orientation device provided by the present invention, the hollow plate includes a plastic shell, and a grid is provided inside the plastic shell. The segmented wires are fixed inside the plastic shell through the grid.

[0015] The present invention discloses the following technical effects:

[0016] In this invention, a suitable number of splicing units are selected according to the specimen size and spliced ​​together to form a coil. After determining the appropriate orientation angle, the power is turned on to generate a magnetic field within the coil, thereby orienting the steel fibers. The device of this invention is simple to assemble, convenient to transport, and highly adaptable, allowing the coil size to be adjusted according to the dimensions of the cast-in-place specimen. After orienting the steel fibers using this method, the shear and bending resistance of fiber-reinforced concrete beams, slabs, and other components is significantly enhanced, fully utilizing the reinforcing effect of the steel fibers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the principle structure of the assembled electromagnetic orientation device of the present invention;

[0019] Figure 2 This is a schematic diagram of the oriented steel fiber reinforced concrete plate of the assembled electromagnetic orientation device of the present invention;

[0020] Figure 3 This is a schematic diagram of the directional steel fiber reinforced concrete beam of the assembled electromagnetic orientation device of the present invention;

[0021] Figure 4 This is a schematic diagram of the assembled electromagnetic orientation device of the present invention.

[0022] Figure 5 This is a schematic diagram of the assembly unit of the present invention.

[0023] Among them, 1. hollow sheet material; 2. segmented wire; 3. female connector; 4. male connector; 5. plastic bundler; 6. hinge plate; 7. grid; 8. fixed support point; 9. connecting rod. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1-5 The present invention provides a modular adaptive concrete steel fiber electromagnetic orientation device, including splicing units, wherein a plurality of splicing units are provided, and the plurality of splicing units are arranged in a polygonal structure. In this embodiment, the splicing unit is configured as a rectangle.

[0027] Hollow sheet 1, there are two hollow sheet 1, and the two hollow sheet 1 are connected and disassembled and angle controlled by a connecting component;

[0028] The power supply line is set inside the hollow panel 1. The power supply line is equipped with a docking component at both ends. The power supply lines of adjacent splicing units are connected by the docking component.

[0029] The hollow panel 1 has a fixed support point 8 on its side, and a connecting rod 9 is used to connect the fixed support point 8 to fix the angle of the hollow panel 1. Different included angles between the hollow panels correspond to connecting rods of different lengths and curvatures.

[0030] When using this invention, a suitable number of splicing units are selected according to the size of the specimen and spliced ​​together to form a coil. It is worth noting that before assembly, it is necessary to ensure that there are splicing units with power input and power output. After determining the appropriate orientation angle, the power supply is turned on to form a magnetic field in the coil, thereby orienting the steel fiber.

[0031] For cast-in-place steel fiber reinforced concrete (SFR) panels, the steel fibers are typically horizontally oriented to enhance their flexural strength. First, the panels must be assembled according to the correct assembly sequence and wiring connection sequence to ensure that the magnetic field generated by the coil is horizontal after energization. Then, the cast-in-place SFR panel is placed inside the coil and left to stand for 30-60 seconds according to the set current intensity (the mold containing the SFR panel can be tapped or vibrated during orientation if necessary) to complete the orientation of the steel fibers. See [link to detailed procedure] for more information. Figure 2 and Figure 4 .

[0032] For cast-in-place steel fiber reinforced concrete beams, horizontal orientation of the flexural section or specific angle orientation of the scissor span section is typically performed. Horizontal orientation of the flexural section is similar to that of steel fiber reinforced concrete panels. Specific angle orientation of the scissor span section needs to be set according to the calculated angle of the diagonal crack. First, the cast-in-place steel fiber reinforced concrete beam must be assembled according to the correct assembly sequence and wiring connection sequence, using connecting rods to connect and fix the support points, tightly securing adjacent hollow panels together. Then, the assembled electromagnetic orientation device is tilted to the required angle and left to stand for 30-60 seconds according to the set current intensity (the mold containing the steel fiber reinforced concrete can be tapped or vibrated during orientation as needed) to complete the orientation of the steel fibers. See the detailed operation process below. Figure 3 and Figure 4 .

[0033] The device of this invention is simple to assemble, convenient to transport, and highly adaptable, allowing the coil size to be adjusted according to the dimensions of the cast-in-place specimen. After orienting the steel fibers using this method, the shear and bending resistance of fiber-reinforced concrete beams, slabs, and other components is significantly enhanced, fully utilizing the reinforcing effect of the steel fibers.

[0034] Further optimization of the scheme: the power line includes several segmented wires 2, which are arranged side by side at equal intervals within the hollow panel 1. The two ends of the segmented wires 2 are respectively positioned corresponding to the ends of two hollow panels 1 that are far apart from each other, and the two ends of the segmented wires 2 are respectively provided with connecting components. The splicing unit can be vertical, zigzag, or straight. In this embodiment, a vertical structure is adopted. One end of the segmented wire 2 is fixed to the end of one of the hollow panels 1, and the other end extends out of the other hollow panel 1.

[0035] The scheme is further optimized. The docking component includes a female docking terminal 3 and a male docking terminal 4. One end of the segmented wire 2 is fixed to the end of the hollow plate 1 and is fixedly connected to the female docking terminal 3. The male docking terminal 4 is fixedly connected to the end of the segmented wire 2 that extends out of the hollow plate 1. The female docking terminal 3 and the male docking terminal 4 are compatible. Several female docking terminals 3 and several male docking terminals 4 are fixed by fasteners.

[0036] The scheme is further optimized. The fasteners include a plastic cluster 5. Several female terminals 3 are fixed to the ends of the hollow plate 1 by the plastic cluster 5. Several male terminals 4 are fixed together by the plastic cluster 5.

[0037] The design is further optimized so that the connecting components include a hinge plate 6, which can rotate freely and is detachably connected to the hollow sheet 1 by bolts.

[0038] The design was further optimized so that the length of the end of the segmented wire 2 that is fixedly connected to the male connector 4 extends out of the hollow plate 1 by 10cm-15cm.

[0039] The solution is further optimized so that the hollow board 1 includes a plastic shell, and a grid 7 is provided inside the plastic shell. The segmented wires 2 are fixed inside the plastic shell through the grid 7.

[0040] When steel fibers need to be oriented, this invention uses a suitable number of hollow plates to form a coil by splicing them together according to the size of the specimen. After determining the appropriate orientation angle, the power is turned on to form a magnetic field in the coil, thereby orienting the steel fibers. At the same time, hollow plates with an appropriate number of segmented wires or an appropriate current intensity can be selected according to the thickness of the specimen to ensure the orientation quality. To ensure the simplicity and safety of coil splicing and to meet the current intensity requirements, the segmented wires 2 all use wires with an area of ​​4 square millimeters or more. This device is easy to assemble, easy to carry, has high orientation efficiency, and good orientation effect, and can quickly and accurately orient steel fibers at multiple angles.

[0041] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0042] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A modular adaptive concrete steel fiber electromagnetic orientation device, characterized in that, The system includes splicing units, wherein a plurality of splicing units are provided, and the plurality of splicing units are arranged in a polygonal structure. Each splicing unit includes: Hollow sheet material (1), two hollow sheet materials (1) are provided, and the two hollow sheet materials (1) are connected and detached and angle controlled by a connecting component; The power supply line is set inside the hollow board (1), and the two ends of the power supply line are respectively provided with docking components. The power supply lines of adjacent splicing units are connected through the docking components. The hollow board (1) is provided with a fixed support point (8) on its side, and the fixed support point (8) is connected by a connecting rod (9) to fix the angle of the hollow board (1); The power line includes several segmented wires (2), which are arranged side by side at equal intervals in the hollow sheet (1). The two ends of the segmented wires (2) are respectively arranged to correspond to the ends of the two hollow sheets (1) that are far away from each other, and the two ends of the segmented wires (2) are respectively provided with the docking components. One end of the segmented wire (2) is fixed to the end of one of the hollow plates (1), and the other end extends out of the other hollow plate (1); The docking assembly includes a female docking terminal (3) and a male docking terminal (4). One end of the segmented wire (2) is fixed to the end of the hollow plate (1) and is fixedly connected to the female docking terminal (3). The male docking terminal (4) is fixedly connected to one end of the segmented wire (2) extending out of the hollow plate (1). The female docking terminal (3) and the male docking terminal (4) are adapted to each other. Several female docking terminals (3) and several male docking terminals (4) are fixed by fasteners. The fastener includes a plastic cluster (5), and a plurality of female terminals (3) are fixed to the ends of the hollow plate (1) by the plastic cluster (5); a plurality of male terminals (4) are fixed together by the plastic cluster (5).

2. The modular adaptive concrete steel fiber electromagnetic orientation device according to claim 1, characterized in that: The connecting assembly includes a hinge plate (6) which is rotatable and is detachably connected to the hollow plate (1) by bolts.

3. The modular adaptive concrete steel fiber electromagnetic orientation device according to claim 1, characterized in that: The length of the end of the segmented wire (2) that is fixedly connected to the male connector (4) extending out of the hollow plate (1) is 10cm-15cm.

4. The modular adaptive concrete steel fiber electromagnetic orientation device according to claim 1, characterized in that: The hollow sheet (1) includes a plastic shell, and a grid (7) is provided inside the plastic shell. The segmented wire (2) is fixed inside the plastic shell through the grid (7).

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