A coarse aggregate vibrating screening device

Abstract

The application relates to a coarse aggregate vibration screening device and relates to the technical field of vibration screening, which comprises two groups of bottom plates, a cleaning assembly and two groups of mounting plates, the two groups of mounting plates are arranged at the top of the two groups of bottom plates, the cleaning assembly is arranged in the two groups of mounting plates, the top of each of the two groups of mounting plates is provided with a vertical plate, one side of each of the two groups of vertical plates is provided with an electric push rod, and the opposite ends of the two groups of electric push rods are provided with the same feeding pipe. When a first driving motor operates and a motor drives a rotating disc to rotate, a movable rod can convert the circular motion of the rotating disc into the reciprocating motion of the cleaning assembly, the vibration effect of a filter screen can be enhanced, the speed of fine aggregate passing through the filter screen holes can be accelerated, the separation efficiency of coarse and fine aggregates can be improved, manual operation intensity can be reduced, the electric push rod on the vertical plate can flexibly adjust the position of the feeding pipe, and the feeding pipe can accurately aim at the filter screen in the cleaning assembly according to screening requirements.

Description

Technical Field

[0001] This application relates to vibration screening, and more particularly to a vibration screening device for coarse aggregate. Background Technology

[0002] Concrete aggregates are key granular materials that play a crucial role in the skeleton support and volume filling of concrete. They are classified into coarse aggregates and fine aggregates according to their particle size differences. The accurate grading and screening of these two types of aggregates directly affects the density, strength, and workability of concrete. In the concrete processing and production process, the coarse aggregate vibration screening device is the core equipment for separating coarse and fine aggregates. Through the vibration mechanism, the filter screen is driven to vibrate at high frequency, allowing the fine aggregates to pass through the filter screen holes and complete the separation. This type of device is widely used in concrete preparation scenarios such as building engineering and road and bridge construction.

[0003] A current patent (publication number: CN213494863U) discloses a coarse aggregate vibration screening device. This device connects one end of a filter screen to the inner wall of the screening chamber and the other end to a lifting drive mechanism. A solenoid valve and a counting component are installed at the feeding end of the feeding chamber. The counting component records the number of times the solenoid valve opens to feed material. When the number of feedings reaches a set value, the counting component controls the lifting drive mechanism to tilt the filter screen, causing the coarse aggregate on the screen to automatically slide into the feeding trough for collection. This effectively solves the problem of high labor intensity and low production efficiency caused by the need for manual cleaning of coarse aggregate in traditional devices. However, this solution still has significant technical shortcomings. During long-term screening, some fine aggregate or aggregate impurities easily embed themselves in the mesh of the filter screen. As the screening operation continues, the number of clogged mesh openings gradually increases, directly leading to a decrease in the pass rate of fine aggregate. This not only significantly reduces screening efficiency but may also cause incomplete separation of coarse and fine aggregates due to insufficient filter screen permeability, affecting the quality of subsequent concrete products. The existing structure does not have a cleaning mechanism for the filter screen surface and mesh openings, and therefore cannot address the filter screen clogging problem.

[0004] To address the shortcomings of the aforementioned patents, such as easy clogging and lack of effective cleaning methods, this application proposes a coarse aggregate vibration screening device. Its core innovation lies in the addition of a functional structure that can actively clean the filter screen surface. This structure can remove residual fine aggregate, impurities, and blockages stuck in the mesh on the filter screen in real time or periodically, fundamentally preventing filter screen clogging and ensuring that the filter screen always maintains a good permeability. This, in turn, maintains the device's stable screening efficiency and accurate separation effect, thus overcoming the deficiencies of the prior art. Utility Model Content

[0005] The purpose of this application is to provide a coarse aggregate vibratory screening device, which has the advantages of easy cleaning of the filter screen and solves the problem of filter screen clogging caused by long-term use.

[0006] The coarse aggregate vibrating screening device provided in this application adopts the following technical solution: it includes two sets of base plates, a cleaning component and two sets of mounting plates. The two sets of mounting plates are respectively set on the top of the two sets of base plates. The cleaning component is set inside the two sets of mounting plates. Each set of mounting plates has a vertical plate on its top. Each set of vertical plates has an electric push rod on one side. The opposite ends of the two sets of electric push rods are provided with the same feed pipe. By adopting the above technical solution, the electric push rod on the upright plate can flexibly adjust the position of the feed pipe, so that the feed pipe can be accurately aligned with the filter screen in the cleaning component according to the screening requirements.

[0007] Preferably, a turntable is provided on one side of each of the two sets of upright plates via a rotating shaft, and a movable rod is movably connected to the surface of each of the two sets of turntables via a pin. The other end of each of the two sets of movable rods is movably connected to the top of the cleaning assembly via a pin. A first drive motor is provided on the other side of each of the two sets of upright plates, and the other end of the output shaft of each of the two sets of first drive motors is fixedly connected to the other end of each of the two sets of turntables via a rotating shaft.

[0008] By adopting the above technical solution, when the first drive motor operates and drives the turntable to rotate, the movable rod can convert the circumferential motion of the turntable into the reciprocating motion of the cleaning component. This can enhance the vibration effect of the filter screen, accelerate the speed at which fine aggregate passes through the filter screen, improve the separation efficiency of coarse and fine aggregate, and reduce the intensity of manual operation.

[0009] Preferably, the cleaning assembly includes a mounting frame, a filter screen is provided inside the mounting frame, the other ends of the two sets of movable rods are movably connected to the top of the mounting frame by pins, and a limiting groove is provided on one side of each of the two sets of base plates, a slider is slidably connected in the limiting groove, and the slider is fixedly connected to one side of the mounting frame.

[0010] By adopting the above technical solution, the sliding cooperation between the slider and the limiting groove can accurately limit the movement direction of the cleaning component, prevent it from deviating or shaking during movement, and make the movement of the cleaning component more stable.

[0011] Preferably, the bottom of the mounting frame is provided with grooves near both sides, a lead screw is provided in one of the grooves, a threaded block is threaded to the surface of the lead screw, a brush plate is provided on one side of the threaded block, the brush plate is in contact with the filter screen, a second drive motor is provided on one side of the mounting frame, and the other end of the output shaft of the second drive motor is fixedly connected to the shaft end of the lead screw through a rotating shaft.

[0012] By adopting the above technical solution, and with the help of the second drive motor, lead screw, threaded block and brush plate, the filter cleaning operation can be automated. When the second drive motor drives the lead screw to rotate, the threaded block can move smoothly along the axis of the lead screw, thereby driving the brush plate to slide along the surface of the filter screen. The close contact between the brush plate and the filter screen can remove the fine aggregate, impurities and blockages stuck in the mesh on the surface of the filter screen in real time. There is no need to manually disassemble the filter screen for cleaning, which effectively avoids filter screen clogging, maintains the transparency of the filter screen, ensures stable screening efficiency, and greatly reduces the intensity of manual labor.

[0013] Preferably, another set of the grooves is provided with a slide rod, and a slide plate is slidably connected to the surface of the slide rod, the slide plate being disposed on the other side of the brush plate.

[0014] By adopting the above technical solution, the cooperative structure of the slide bar and the slide plate can provide additional guidance and support for the brush plate. When the brush plate moves under the drive of the lead screw, the slide plate can slide synchronously along the slide bar, avoiding the brush plate from tilting or shifting due to the unilateral driving force of the lead screw, and ensuring that the brush plate is always in close contact with the filter screen surface.

[0015] Preferably, the top of the mounting frame is provided with sliding grooves near both sides, and the brush plate is slidably connected in the sliding grooves.

[0016] By adopting the above technical solution, and by opening a sliding groove, the brush plate can move more smoothly by sliding within the groove.

[0017] Preferably, a slot is provided on one side of the feed pipe, a filter plate is provided in the slot, and a cover plate is movably connected to the top of the feed pipe via a hinge.

[0018] By adopting the above technical solution, the filter plate on the feed pipe can perform preliminary filtration of the input aggregate raw materials, intercept the oversized impurities mixed in the raw materials in advance, reduce the wear rate of the filter screen, and the slot structure facilitates quick disassembly, cleaning or replacement of the filter plate, making operation convenient. The cover plate can close the top opening of the feed pipe during screening operations to prevent dust generated during aggregate screening from overflowing.

[0019] Preferably, both sets of base plates are provided with a soft pad at the bottom, and the soft pad is made of rubber.

[0020] By adopting the above technical solution, the rubber pad at the bottom of the base plate can effectively buffer the vibration and impact force generated when the device is working, and can significantly reduce the noise caused by vibration. The mounting plate and the cleaning assembly are in an inclined state.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This coarse aggregate vibrating screening device operates via a first drive motor. When the motor drives the turntable to rotate, the movable rod converts the turntable's circular motion into the reciprocating motion of the cleaning components. This enhances the vibration effect of the filter screen, accelerates the speed at which fine aggregate passes through the filter screen openings, and improves the separation efficiency of coarse and fine aggregates. It also reduces the intensity of manual operation. With the help of a second drive motor, lead screw, threaded block, and brush plate, the filter screen cleaning can be automated. When the second drive motor drives the lead screw to rotate, the threaded block can move smoothly along the lead screw axis, thereby driving the brush plate to slide along the filter screen surface. The close contact between the brush plate and the filter screen can remove residual fine aggregate, impurities, and blockages stuck in the mesh openings in real time. There is no need for manual disassembly and cleaning of the filter screen, effectively avoiding filter screen clogging, maintaining filter screen permeability, ensuring stable screening efficiency, and significantly reducing the intensity of manual labor. Attached Figure Description

[0022] Figure 1 This is a frontal three-dimensional structural diagram of this application; Figure 2 This is a schematic diagram of the feed pipe structure in this application; Figure 3 This is a schematic diagram of the cleaning component in this application; Figure 4 This is a schematic diagram of the mounting frame in this application; Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Base plate; 2. Mounting plate; 3. Vertical plate; 4. First drive motor; 5. Turntable; 6. Movable rod; 7. Feed pipe; 701. Filter plate; 702. Cover plate; 703. Slot; 8. Electric push rod; 9. Cleaning assembly; 901. Mounting frame; 902. Filter screen; 903. Slide groove; 904. Brush plate; 905. Second drive motor; 906. Groove; 907. Threaded block; 908. Slide rod; 909. Slide plate; 910. Lead screw; 10. Soft pad; 11. Limiting groove; 12. Slider. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A coarse aggregate vibrating screening device, referring to Figure 1It includes two sets of base plates 1, a cleaning component 9, and two sets of mounting plates 2. The two sets of mounting plates 2 are respectively set on top of the two sets of base plates 1. The cleaning component 9 is set inside the two sets of mounting plates 2. Each set of mounting plates 2 has a vertical plate 3 on its top. Each set of vertical plates 3 has an electric push rod 8 on one side. The opposite ends of the two sets of electric push rods 8 are provided with the same feed pipe 7. The electric push rod 8 on the vertical plate 3 can flexibly adjust the position of the feed pipe 7 so that the feed pipe 7 can be accurately aligned with the filter screen 902 in the cleaning component 9 according to the screening requirements.

[0026] Example 2: A coarse aggregate vibrating screening device, referring to... Figure 1 , Figure 3 and Figure 4Each of the two sets of upright plates 3 has a turntable 5 mounted on one side via a pivot. The surfaces of both turntables 5 are movably connected to movable rods 6 via pins. The other ends of the movable rods 6 are movably connected to the top of the cleaning assembly 9 via pins. Each of the two sets of upright plates 3 has a first drive motor 4 mounted on its other side. The other ends of the output shafts of the two first drive motors 4 are fixedly connected to the other ends of the two turntables 5 via pivots. When the first drive motors 4 operate, driving the turntables 5 to rotate, the movable rods 6 convert the circular motion of the turntables 5 into the reciprocating motion of the cleaning assembly 9, thus enhancing the vibration effect of the filter 902. The cleaning component 9 accelerates the speed at which fine aggregate passes through the filter screen 902, improving the separation efficiency of coarse and fine aggregates while reducing manual operation intensity. It includes a mounting frame 901, within which the filter screen 902 is installed. The other ends of two sets of movable rods 6 are movably connected to the top of the mounting frame 901 via pins. Limit grooves 11 are provided on one side of each of the two base plates 1, with sliders 12 slidably connected within the limit grooves 11. The sliders 12 are fixedly connected to one side of the mounting frame 901. The sliding cooperation between the sliders 12 and the limit grooves 11 precisely restricts the movement direction of the cleaning component 9, preventing deviation during movement. The shaking makes the movement of the cleaning component 9 more stable. The bottom of the mounting frame 901 has grooves 906 near both sides. A lead screw 910 is installed in one groove 906. A threaded block 907 is threaded onto the surface of the lead screw 910. A brush plate 904 is installed on one side of the threaded block 907, and the brush plate 904 contacts the filter screen 902. A second drive motor 905 is installed on one side of the mounting frame 901. The other end of the output shaft of the second drive motor 905 is fixedly connected to the shaft end of the lead screw 910 via a rotating shaft. The cleaning component 902 is formed by the second drive motor 905, the lead screw 910, the threaded block 907, and the brush plate 902. The drive mechanism 04 enables automated cleaning of the filter screen 902. When the second drive motor 905 drives the lead screw 910 to rotate, the threaded block 907 can move smoothly along the axis of the lead screw 910, thereby driving the brush plate 904 to slide along the surface of the filter screen 902. The close contact between the brush plate 904 and the filter screen 902 can remove fine aggregates, impurities, and blockages stuck in the mesh on the surface of the filter screen 902 in real time. There is no need to manually disassemble the filter screen 902 for cleaning, which effectively avoids clogging of the filter screen 902, maintains the transparency of the filter screen 902, ensures stable screening efficiency, and greatly reduces the intensity of manual labor.

[0027] Example 3: A coarse aggregate vibrating screening device, referring to Figure 1 , Figure 2 and Figure 4Another set of grooves 906 is provided with a slide rod 908, and a slide plate 909 is slidably connected to the surface of the slide rod 908. The slide plate 909 is located on the other side of the brush plate 904. The cooperation structure between the slide rod 908 and the slide plate 909 can provide additional guidance and support for the brush plate 904. When the brush plate 904 moves under the drive of the lead screw 910, the slide plate 909 can slide synchronously along the slide rod 908, preventing the brush plate 904 from tilting or shifting due to the driving force of the lead screw 910 on one side, ensuring that the brush plate 904 is always in close contact with the surface of the filter screen 902. Slide grooves 903 are provided on the top of the mounting frame 901 near both sides, and the brush plate 904 is slidably connected in the slide grooves 903. By providing slide grooves 903, the brush plate 904 can move more smoothly through the sliding action of the slide grooves 903. A slot 703 is provided on one side of the feed pipe 7, and the filter plate 701 is installed in the slot 703. The top of the feed pipe 7 is movably connected to... The cover plate 702 and the filter plate 701 on the feed pipe 7 can perform preliminary filtration of the input aggregate raw materials, intercepting the oversized impurities mixed in the raw materials in advance, reducing the wear rate of the filter screen 902. The slot 703 structure facilitates the quick disassembly, cleaning or replacement of the filter plate 701, making operation convenient. The cover plate 702 can close the top opening of the feed pipe 7 during screening operations to prevent dust generated during aggregate screening from overflowing. Both sets of base plates 1 are equipped with soft pads 10 at the bottom. The soft pads 10 are made of rubber. The mounting plate 2 and the cleaning component 9 are in an inclined state. The rubber soft pads 10 at the bottom of the base plate 1 can effectively buffer the vibration and impact force generated during the operation of the device, which can significantly reduce the noise caused by vibration.

[0028] The implementation principle of this application embodiment is as follows: When using the coarse aggregate vibrating screening device, open the cover plate 702 connected to the top of the feed pipe 7 by the hinge, confirm that the filter plate 701 in the slot 703 on one side of the feed pipe 7 is installed in place, start the electric push rod 8 on one side of the vertical plate 3, and drive the feed pipe 7 at its opposite end to move laterally through the extension and retraction action of the electric push rod 8 until the discharge port of the feed pipe 7 is accurately aligned with the filter screen 902 in the mounting frame 901, ensuring that the subsequent aggregate feeding can fall evenly on the filter screen 902, avoiding excessive local load or uneven screening of the filter screen 902 due to feeding deviation, and preventing the feed pipe 7 from being fed into the feed pipe 7. The concrete aggregate to be screened is poured in. During the descent of the aggregate, the filter plate 701 in the feed pipe 7 will first perform preliminary filtration of the aggregate, intercepting oversized impurities in advance, reducing the impact and clogging of such impurities on the filter screen 902. At the same time, the first drive motor 4 on the other side of the vertical plate 3 is started. The output shaft of the first drive motor 4 drives the turntable 5 to rotate around the axis. The movable rod 6 connected to the surface of the turntable 5 by the pin rotates with the turntable 5, converting the circular motion into the reciprocating motion of the mounting frame 901. The slider 12 fixed on one side of the mounting frame 901 slides synchronously along the limiting groove 11 opened in the bottom plate 1, for installation. The movement of frame 901 provides guidance, preventing it from shifting or wobbling. Driven by the reciprocating motion of frame 901, filter screen 902 vibrates at high frequency. Fine aggregates in the aggregate are separated by the vibration and pass through the holes of filter screen 902, while coarse aggregates remain on filter screen 902. During or after screening, filter screen 902 needs to be automatically cleaned to prevent clogging. The second drive motor 905 on one side of frame 901 is activated. The output shaft of the second drive motor 905 drives the lead screw 910 in the groove 906 at the bottom of frame 901 to rotate. The threaded block 910 is threaded onto the surface of the lead screw 910. 07 moves along the axis of the lead screw 910, thereby driving the brush plate 904 on one side of the threaded block 907 to move synchronously. At this time, the slide plate 909 connected to the other side of the brush plate 904 will slide along the slide rod 908 in another set of grooves 906. At the same time, the top of the brush plate 904 slides smoothly in the slide groove 903 at the top of the mounting frame 901. The multiple guiding structure ensures that the brush plate 904 is always in close contact with the surface of the filter screen 902 and the movement trajectory is stable. During the movement, the brush plate 904 can completely remove the fine aggregate, impurities and blockages stuck in the mesh on the filter screen 902 without the need for manual disassembly of the filter screen 902.

Claims

1. A coarse aggregate vibrating screening device, comprising two sets of base plates (1), a cleaning assembly (9), and two sets of mounting plates (2), characterized in that: The two sets of mounting plates (2) are respectively set on the top of the two sets of base plates (1), the cleaning component (9) is set inside the two sets of mounting plates (2), the top of the two sets of mounting plates (2) is provided with a vertical plate (3), the side of the two sets of vertical plates (3) is provided with an electric push rod (8), and the opposite ends of the two sets of electric push rods (8) are provided with the same feed pipe (7).

2. The coarse aggregate vibrating screening device according to claim 1, characterized in that: One side of each of the two sets of upright plates (3) is provided with a turntable (5) via a rotating shaft. The surfaces of the two sets of turntables (5) are movably connected to movable rods (6) via pins. The other ends of the two sets of movable rods (6) are movably connected to the top of the cleaning assembly (9) via pins. The other side of each of the two sets of upright plates (3) is provided with a first drive motor (4). The other ends of the output shafts of the two sets of first drive motors (4) are respectively fixedly connected to the other ends of the two sets of turntables (5) via rotating shafts.

3. The coarse aggregate vibrating screening device according to claim 2, characterized in that: The cleaning component (9) includes a mounting frame (901), a filter screen (902) is provided in the mounting frame (901), the other ends of the two sets of movable rods (6) are movably connected to the top of the mounting frame (901) by a pin, and a limiting groove (11) is opened on one side of each of the two sets of base plates (1), and a slider (12) is slidably connected in the limiting groove (11), and the slider (12) is fixedly connected to one side of the mounting frame (901).

4. The coarse aggregate vibrating screening device according to claim 3, characterized in that: The mounting frame (901) has grooves (906) on both sides near the bottom. A lead screw (910) is installed in one of the grooves (906). A threaded block (907) is threaded onto the surface of the lead screw (910). A brush plate (904) is installed on one side of the threaded block (907). The brush plate (904) is in contact with the filter screen (902). A second drive motor (905) is installed on one side of the mounting frame (901). The other end of the output shaft of the second drive motor (905) is fixedly connected to the shaft end of the lead screw (910) through a rotating shaft.

5. The coarse aggregate vibrating screening device according to claim 4, characterized in that: Another set of grooves (906) is provided with a slide rod (908), and a slide plate (909) is slidably connected to the surface of the slide rod (908). The slide plate (909) is located on the other side of the brush plate (904).

6. The coarse aggregate vibrating screening device according to claim 5, characterized in that: The top of the mounting frame (901) is provided with grooves (903) near both sides, and the brush plate (904) is slidably connected in the grooves (903).

7. A coarse aggregate vibrating screening device according to claim 6, characterized in that: A slot (703) is provided on one side of the feed pipe (7), and a filter plate (701) is provided in the slot (703). A cover plate (702) is movably connected to the top of the feed pipe (7) via a hinge.

8. The coarse aggregate vibrating screening device according to claim 1, characterized in that: Both sets of base plates (1) are provided with soft pads (10) at the bottom. The soft pads (10) are made of rubber. The mounting plate (2) and the cleaning component (9) are in an inclined state.

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