Waste asphalt pavement material crushing and screening device

Abstract

The utility model relates to a waste asphalt pavement material crushing and screening device which comprises an installation base, a flow guide plate connected to the upper side of the installation base, an installation frame connected to the flow guide plate, a crushing assembly installed in the installation frame, a screening plate connected between the left side and the right side of the upper portion of the installation base, and an anti-blocking mechanism arranged on the installation base. The anti-blocking mechanism is used for cleaning the screening plate. According to the anti-blocking mechanism, the screw rod is driven by the first driving motor, and feedback control of the sensor is combined, so that the anti-blocking roller can automatically roll back and forth along the surface of the screening plate, materials blocked in screening holes are cleaned, mechanical clamping stagnation is avoided, frequent shutdown cleaning is avoided, and the operation continuity is improved.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to a crushing and screening device for waste asphalt pavement materials. Background Technology

[0002] Waste asphalt pavement materials are generated during road maintenance, renovation, or demolition. These materials typically contain asphalt, aggregates, and additives. Recycling and reusing waste asphalt pavement materials can meet the needs of environmental protection construction and achieve resource recycling. Crushing and screening are key steps in recycling and reuse. In the actual crushing and screening process, vibrating screens are used to separate particles of different sizes, which are then conveyed by belts. However, when screening viscous asphalt materials, screen clogging is likely to occur, requiring frequent shutdowns for cleaning, resulting in poor operational continuity. At the same time, open conveying systems can easily cause fine particles to scatter, leading to material waste and potentially dust pollution.

[0003] To address the above problems, a crushing and screening device for waste asphalt pavement materials has been developed. Utility Model Content

[0004] To overcome the shortcomings of using vibrating screens to separate particles of different sizes and conveying them via belts in actual crushing and screening processes, which can easily lead to screen hole blockage when screening viscous asphalt materials, requiring frequent shutdowns for cleaning and resulting in poor operational continuity, and open conveying systems that can easily cause fine particles to scatter, resulting in material waste and potentially dust pollution, this utility model provides a waste asphalt pavement material crushing and screening device.

[0005] The technical solution of this utility model is as follows:

[0006] A waste asphalt pavement material crushing and screening device includes a mounting base, a guide plate connected to the upper side of the mounting base, a mounting frame connected to the guide plate, and a crushing assembly installed inside the mounting frame. The crushing assembly includes a drive motor, a bevel gear, a first gear, a second gear, and crushing rollers. The drive motor is installed on the left side of the mounting frame, and the bevel gear is connected to the output shaft of the drive motor. Two crushing rollers are rotatably connected inside the mounting frame. The first gear is connected to the left side of the front crushing roller, and the second gear is connected to the left side of the rear crushing roller. The first gear meshes with the bevel gear, and the first gear meshes with the second gear. A screening plate is connected between the left and right sides of the upper part of the mounting base. An anti-clogging mechanism is provided on the mounting base for cleaning the screening plate.

[0007] As a further preferred embodiment, the anti-clogging mechanism includes a first drive assembly, which is mounted on the upper part of the mounting base. The first drive assembly includes a first drive motor and a lead screw. The first drive motor is mounted on the upper right side of the mounting base. The lead screw is connected to the output shaft of the first drive motor. An installation rod is threadedly connected to the lead screw. A guide rod is connected to the upper rear side of the mounting base. The installation rod is slidably connected to the guide rod. An anti-clogging roller is rotatably connected to the installation rod. A sensor is connected to the front of the installation rod. The sensor is in contact with the mounting base.

[0008] As a further preferred embodiment, a conveying mechanism is also included. The conveying mechanism includes a second drive assembly, which is mounted on the lower part of the mounting base. The second drive assembly includes a second drive motor and a transmission roller. The second drive motor is mounted on the front left side of the mounting base. The transmission roller is connected to the output shaft of the second drive motor and is rotatably connected to the mounting base. The transmission roller is also rotatably connected to the right side of the mounting base. Belts are provided between the front and rear left and right sides of the two transmission rollers. There are two belts, and several partition plates are provided on the belts. The partition plates can play a role in quantitative conveying.

[0009] As a further preferred embodiment, the mounting frame is reinforced with triangular ribs on both the front and rear sides.

[0010] As a further preferred option, the upper side of the mounting frame has a funnel-shaped structure to facilitate material delivery.

[0011] As a further preferred embodiment, baffles are rotatably connected between the front and rear left and right sides of the two drive rollers. There are two baffles, which can block small particles of material and prevent them from falling accidentally.

[0012] By adopting the above technical solution, compared with the prior art, this utility model has the following advantages:

[0013] 1. This utility model uses an anti-clogging mechanism, with a first drive motor driving a lead screw and combined with sensor feedback control, to enable the anti-clogging roller to automatically reciprocate along the surface of the screening plate, thereby clearing the material clogging the screen holes, avoiding mechanical jamming, avoiding frequent shutdowns for cleaning, and improving the continuity of operation.

[0014] 2. This utility model uses a conveying mechanism with baffles and partitions to form a closed conveying channel during belt drive, which can prevent fine particulate materials from scattering and ensure the integrity and efficiency of material conveying. At the same time, the partitions can achieve quantitative and uniform discharge. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a three-dimensional cross-sectional view of the first type of anti-clogging mechanism of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the second type of anti-clogging mechanism of this utility model.

[0019] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the conveying mechanism of this utility model.

[0020] Wherein: 1-mounting frame, 2-crushing component, 3-guide plate, 4-mounting base, 5-screening plate, 6-anti-clogging mechanism, 61-first drive component, 62-guide rod, 63-mounting rod, 64-anti-clogging roller, 65-sensor, 7-conveying mechanism, 71-second drive component, 72-belt, 73-separator plate. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances. Example 1

[0022] A waste asphalt pavement material crushing and screening device, such as Figure 1 and Figure 2As shown, the system includes a mounting base 4, a guide plate 3 connected to the upper side of the mounting base 4, a mounting frame 1 connected to the guide plate 3, and triangular ribs for reinforcement connected to both the front and rear sides of the mounting frame 1. The upper side of the mounting frame 1 has a funnel-shaped structure for easy material feeding. A crushing component 2 is installed inside the mounting frame 1. The crushing component 2 includes a drive motor, a bevel gear, a first gear, a second gear, and crushing rollers. The drive motor is installed on the left side of the mounting frame 1, and a bevel gear is connected to the output shaft of the drive motor. Two crushing rollers are rotatably connected inside the mounting frame 1. The first gear is connected to the left side of the front crushing roller, and the second gear is connected to the left side of the rear crushing roller. The first gear meshes with the bevel gear, and the first gear meshes with the second gear. A screening plate 5 is connected between the left and right sides of the upper part of the mounting base 4. An anti-clogging mechanism 6 is provided on the mounting base 4 for cleaning the screening plate 5.

[0023] like Figure 1 and Figure 4 As shown, the anti-clogging mechanism 6 includes a first drive assembly 61. The first drive assembly 61 is mounted on the upper part of the mounting base 4. The first drive assembly 61 includes a first drive motor and a lead screw. The first drive motor is mounted on the upper right side of the mounting base 4. The lead screw is connected to the output shaft of the first drive motor. The mounting rod 63 is threadedly connected to the lead screw. The guide rod 62 is connected to the upper rear part of the mounting base 4. The mounting rod 63 is slidably connected to the guide rod 62. The anti-clogging roller 64 is rotatably connected to the mounting rod 63. The sensor 65 is connected to the front of the mounting rod 63. The sensor 65 is in contact with the mounting base 4.

[0024] It should be noted that waste asphalt pavement materials are generated during road maintenance, renovation, or demolition. These materials typically contain asphalt, aggregates, and additives. Recycling and reusing waste asphalt pavement materials can meet the needs of environmental protection and achieve resource recycling. Crushing and screening are key steps in recycling. During crushing and screening, the material is first fed into the installation frame 1. Then, the drive motor is started. The rotation of the drive motor's output shaft drives the bevel gear, causing the first gear to rotate. This, in turn, drives the front crushing roller, the second gear, and the rear crushing roller to rotate successively. The two crushing rollers rotate in opposite directions, compressing and shearing the waste asphalt material, breaking it into smaller particles. The crushed material passes through the installation frame 1. The material falls from the bottom onto the screening plate 5, which classifies the material according to its particle size. Coarse particles remain above the screening plate 5, while fine particles fall through the sieve holes. During the screening process, the sieve holes may become clogged by the material, affecting the screening efficiency. The first drive motor can be activated to start the first drive motor. The output shaft of the first drive motor rotates, driving the lead screw to rotate, which in turn drives the mounting rod 63 to slide under the guidance of the guide rod 62, causing the anti-clogging roller 64 to move. This allows the surface of the screening plate 5 to be rolled and cleaned to prevent the sieve holes from becoming clogged. When the mounting rod 63 moves to the left limit position, the sensor 65 contacts the mounting base 4. The sensor 65 will control the first drive motor to reverse, which in turn drives the mounting rod 63 to move to the right, thereby repeatedly cleaning the sieve holes to achieve a rapid cleaning effect. Example 2

[0025] Based on Example 1, such as Figure 1 , Figure 2 and Figure 5 As shown, it also includes a conveying mechanism 7, which includes a second drive assembly 71. The second drive assembly 71 is installed on the lower part of the mounting base 4. The second drive assembly 71 includes a second drive motor and a transmission roller. The second drive motor is installed on the front left side of the mounting base 4. The output shaft of the second drive motor is connected to the transmission roller, which is rotatably connected to the mounting base 4. The right side of the mounting base 4 is also rotatably connected to the transmission roller. There are two baffles rotatably connected between the front and rear left and right sides of the two transmission rollers. The baffles can block small particles of material and prevent them from falling accidentally. There are two belts 72 between the front and rear left and right sides of the two transmission rollers. There are several separators 73 on the belts 72. The separators 73 can play a role in quantitative conveying.

[0026] It should be noted that the coarse particles after screening will remain above the screening plate 5, while the fine particles will fall onto the belt 72 at the bottom of the mounting base 4. The second drive motor is started, and the output shaft of the second drive motor rotates, driving the transmission roller to rotate, which in turn drives the belt 72 to move. The separator plate 73 can quantitatively transport the fine particles to the designated position. At the same time, the baffles on the front and rear sides of the belt 72 can prevent small particles from falling accidentally during the conveying process, thereby ensuring the integrity and efficiency of material conveying.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A crushing and screening device for waste asphalt pavement materials, characterized in that: The device includes a mounting base (4), a guide plate (3) connected to the upper side of the mounting base (4), a mounting frame (1) connected to the guide plate (3), a crushing component (2) installed inside the mounting frame (1), the crushing component (2) including a drive motor, a bevel gear, a first gear, a second gear and a crushing roller, the drive motor is installed on the left side of the mounting frame (1), the bevel gear is connected to the output shaft of the drive motor, two crushing rollers are rotatably connected inside the mounting frame (1), the first gear is connected to the left side of the front crushing roller and the second gear is connected to the left side of the rear crushing roller, the first gear meshes with the bevel gear and the first gear meshes with the second gear, a screening plate (5) is connected between the left and right sides of the upper part of the mounting base (4), and an anti-clogging mechanism (6) is provided on the mounting base (4) for cleaning the screening plate (5).

2. The waste asphalt pavement material crushing and screening device as described in claim 1, characterized in that: The anti-clogging mechanism (6) includes a first drive assembly (61). The first drive assembly (61) is mounted on the upper part of the mounting base (4). The first drive assembly (61) includes a first drive motor and a lead screw. The first drive motor is mounted on the upper right side of the mounting base (4). The lead screw is connected to the output shaft of the first drive motor. An installation rod (63) is threadedly connected to the lead screw. A guide rod (62) is connected to the upper rear side of the mounting base (4). The installation rod (63) is slidably connected to the guide rod (62). An anti-clogging roller (64) is rotatably connected to the installation rod (63). A sensor (65) is connected to the front of the installation rod (63). The sensor (65) is in contact with the mounting base (4).

3. The waste asphalt pavement material crushing and screening device as described in claim 2, characterized in that: It also includes a conveying mechanism (7), which includes a second drive assembly (71). The second drive assembly (71) is installed on the lower part of the mounting base (4). The second drive assembly (71) includes a second drive motor and a transmission roller. The second drive motor is installed on the front left side of the mounting base (4). The transmission roller is connected to the output shaft of the second drive motor. The transmission roller is rotatably connected to the mounting base (4). The transmission roller is also rotatably connected to the right side of the mounting base (4). Belts (72) are provided between the front and rear left and right sides of the two transmission rollers. There are two belts (72). Several partition plates (73) are provided on the belts (72). The partition plates (73) can play the role of quantitative conveying.

4. The waste asphalt pavement material crushing and screening device as described in claim 1, characterized in that: The mounting frame (1) is reinforced by triangular ribs on both the front and rear sides.

5. The waste asphalt pavement material crushing and screening device as described in claim 1, characterized in that: The upper side of the mounting frame (1) has a funnel-shaped structure, which facilitates material delivery.

6. The waste asphalt pavement material crushing and screening device as described in claim 3, characterized in that: Two baffles are rotatably connected between the front and rear left and right sides of the two drive rollers. The baffles can block small particles and prevent them from falling accidentally.

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