Distributing device of asphalt concrete mixing plant

Abstract

The utility model relates to the technical field of concrete processing equipment, and discloses a material distributing device of an asphalt concrete mixing plant. The device comprises a bottom frame, and guide strips with T-shaped sliding grooves are fixed to the two sides of the bottom of the bottom frame. Side baffles with T-shaped steps are arranged on the two sides of the sieve plate and matched with the T-shaped sliding grooves, a tail baffle is arranged at one end of the sieve plate, the sieve plate is divided into a coarse sieve area, a medium sieve area and a fine sieve area through division bars, and the diameters of sieve holes are gradually decreased; and the driving mechanism is used for driving the sieve plate to do reciprocating motion along the T-shaped sliding grooves. The multi-screening-area design is adopted, aggregate of different particle sizes can be screened at the same time, the screening efficiency and precision are improved, the equipment structure is simplified, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete processing equipment, specifically to a material distribution device for an asphalt concrete mixing plant. Background Technology

[0002] In the production of asphalt concrete, aggregate screening is a crucial step. Traditional aggregate screening devices typically use screens with a single mesh size, which cannot efficiently screen coarse, medium, and fine aggregates simultaneously. This single-mesh screening method has the following problems:

[0003] 1. Low screening efficiency: Screening devices with a single screen aperture require multiple screenings to separate aggregates according to different particle size requirements, resulting in low screening efficiency and increased production time and cost.

[0004] 2. Insufficient screening accuracy: Traditional screening devices are prone to aggregate mixing during the screening process, and cannot accurately separate coarse, medium and fine aggregates completely, which affects the quality of asphalt concrete.

[0005] 3. Complex equipment structure: In order to achieve multi-stage screening, traditional equipment usually needs to be equipped with multiple screening devices, which is complex in structure, occupies a large area, and has high maintenance costs.

[0006] Therefore, developing a material distribution device that can simultaneously screen coarse, medium, and fine aggregates with a simple structure, high screening efficiency, and high screening accuracy is of great significance for improving the production efficiency and quality of asphalt concrete. Utility Model Content

[0007] In view of the shortcomings of the prior art, this utility model provides a material distribution device for an asphalt concrete mixing plant.

[0008] The technical solution adopted in this utility model is: a material distribution device for an asphalt concrete mixing plant, comprising:

[0009] The bottom frame has guide strips fixed on both sides of its bottom, and the guide strips are provided with "T" shaped grooves.

[0010] The sieve plate has side baffles on both sides, and the side baffles are provided with "T"-shaped steps that slide in conjunction with the "T"-shaped grooves. One end of the sieve plate is provided with a tail baffle. The sieve plate is divided into a coarse sieve area, a medium sieve area and a fine sieve area by partitions. The diameter of the sieve holes in the coarse sieve area, the medium sieve area and the fine sieve area is set from large to small.

[0011] A drive mechanism is used to drive the screen plate to reciprocate along the "T"-shaped groove.

[0012] Furthermore, the drive mechanism includes a drive motor fixed on the bottom frame, a rotating shaft driven and connected to the drive motor, an eccentric wheel fixed on the rotating shaft, a reset elastic element disposed between the tail baffle and the bottom frame, and a driven component fixed on the screen plate, wherein the driven component is in contact with the eccentric wheel.

[0013] Furthermore, a motor mounting plate is fixed on the bottom frame, and the drive motor is fixedly mounted on the motor mounting plate.

[0014] Furthermore, the rotating shaft is connected to the drive motor via a pulley.

[0015] Furthermore, the driven component includes a bracket fixed to the sieve plate and an arc-shaped member fixed to the bracket, the surface of which has a positioning ring groove for the outer edge of the eccentric wheel to extend into.

[0016] Furthermore, the outer ring surface of the eccentric wheel is provided with a number of rolling steel balls at intervals.

[0017] Furthermore, the reset elastic element is a helical spring, and the bottom frame and tail baffle are provided with spring posts for connecting the two ends of the helical spring.

[0018] The beneficial effects of this utility model are:

[0019] 1. Improved screening efficiency: This device adopts a multi-screening zone design, with coarse, medium, and fine screening zones that can simultaneously screen aggregates according to their particle size, eliminating the need for multiple screenings to separate aggregates of different sizes. Compared to traditional single-screen screening devices, this significantly reduces screening time, substantially improves production efficiency, and lowers production costs.

[0020] 2. Improve screening accuracy: The coarse, medium, and fine screening zones of the screen plate are equipped with screen holes of different diameters, arranged in descending order of diameter. This allows for precise separation of coarse, medium, and fine aggregates, avoiding the problem of aggregate mixing in traditional screening devices. This ensures the quality of aggregates in asphalt concrete and improves the performance of the final product.

[0021] 3. Simplified equipment structure and reduced maintenance costs: This device achieves multi-stage screening by setting multiple screening zones on a single screen plate, eliminating the need for additional screening devices, greatly simplifying the equipment structure and reducing the floor space required. At the same time, the simplified structure reduces the equipment failure rate, maintenance workload, and maintenance costs.

[0022] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a top view of the present invention.

[0025] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0026] Figure 1-3 Components: 1. Bottom frame; 2. Guide bar; 3. "T" shaped chute; 4. Screen plate; 5. Side baffle; 6. "T" shaped step; 7. Tail baffle; 8. Coarse screening zone; 9. Medium screening zone; 10. Fine screening zone; 11. Drive motor; 12. Rotating shaft; 13. Eccentric wheel; 14. Reset elastic element; 15. Motor mounting plate; 16. Bracket; 17. Arc-shaped element; 18. Positioning ring groove; 19. Rolling steel ball; 20. Spring column; 21. Spacer bar. Detailed Implementation

[0027] 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.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] This utility model provides a material distribution device for an asphalt concrete mixing plant.

[0030] In this embodiment, refer to Figure 1-3 The material distribution device of the asphalt concrete mixing plant includes:

[0031] The bottom frame 1 has guide strips 2 fixed on both sides of its bottom, and the guide strips 2 are provided with "T"-shaped grooves 3;

[0032] The sieve plate 4 has side baffles 5 on both sides. The side baffles 5 are provided with "T"-shaped steps 6 that slide in conjunction with the "T"-shaped groove. One end of the sieve plate is provided with a tail baffle 7. The sieve plate is divided into a coarse sieve area 8, a medium sieve area 9 and a fine sieve area 10 by a partition strip 21. The diameter of the sieve holes in the coarse sieve area, the medium sieve area and the fine sieve area is set from large to small.

[0033] A drive mechanism is used to drive the screen plate to reciprocate along the "T"-shaped groove.

[0034] In the above technical solution, guide bars with "T"-shaped grooves are provided on both sides of the bottom of the base frame, providing a stable track for the sliding of the screen plate and ensuring the accuracy and stability of the screen plate's movement. At the same time, "T"-shaped steps that slide in conjunction with the "T"-shaped grooves are provided on the side baffles on both sides of the screen plate, allowing the screen plate to smoothly reciprocate along the guide bars of the base frame. This mechanism also prevents the screen plate from shifting or shaking during movement.

[0035] In addition, the screen plate is divided into coarse screening zone, medium screening zone and fine screening zone by partitions, and the screen hole diameter of each screening zone is set from large to small, which can screen and separate materials of different particle sizes entering the material distribution device, realize the grading and distribution of materials, and improve the efficiency and accuracy of material distribution.

[0036] Specifically, the drive mechanism includes a drive motor 11 fixed on the bottom frame 1, a rotating shaft 12 driven and connected to the drive motor 11, an eccentric wheel 13 fixed on the rotating shaft 12, a reset elastic element 14 disposed between the tail baffle and the bottom frame, and a driven component fixed on the screen plate, wherein the driven component is in contact with the eccentric wheel.

[0037] In this embodiment, the drive mechanism includes a drive motor, a rotating shaft, an eccentric wheel, a reset elastic element, and a driven component, which can convert the rotational motion of the drive motor into the reciprocating motion of the screen plate along the "T"-shaped groove.

[0038] The eccentric wheel design makes the movement of the screen plate periodic and regular, which helps in the screening and separation of materials. The reset elastic element plays a role in resetting and buffering during the movement of the screen plate, ensuring that the screen plate can accurately return to its initial position, reducing the impact force during the movement, and extending the service life of the equipment.

[0039] Specifically, a motor mounting plate 15 is fixed on the bottom frame, and the drive motor is fixedly mounted on the motor mounting plate 15.

[0040] In this embodiment, a motor mounting plate is fixed on the base frame, providing a stable mounting platform for the drive motor. This makes the drive motor more stable during operation, reduces displacement and noise caused by vibration, improves the working stability and reliability of the drive motor, and thus ensures the normal operation of the entire drive mechanism.

[0041] Specifically, the rotating shaft and the drive motor are connected by a pulley.

[0042] In this embodiment, the rotating shaft and the drive motor are connected by a pulley, which has the advantages of smooth transmission and damping vibration.

[0043] Specifically, the driven component includes a bracket 16 fixed on the sieve plate and an arc-shaped member 17 fixed on the bracket 16, the surface of which has a positioning ring groove 18 for the outer edge of the eccentric wheel to extend into.

[0044] In this embodiment, the bracket in the driven assembly is fixed to the screen plate, providing support and connection for the arc-shaped component. The positioning ring groove on the surface of the arc-shaped component can mate with the outer edge of the eccentric wheel, allowing the eccentric wheel to stably contact the arc-shaped component during rotation, thereby accurately driving the screen plate to reciprocate and improving the connection stability between the two. This mating method ensures the accuracy and stability of motion transmission between the drive mechanism and the screen plate, improving the working efficiency of the material distribution device.

[0045] Specifically, the outer ring surface of the eccentric wheel is provided with a number of rolling steel balls 19 at intervals.

[0046] In this embodiment, a number of rolling steel balls are spaced apart on the outer ring of the eccentric wheel, transforming the sliding friction between the eccentric wheel and the arc-shaped component into rolling friction, which greatly reduces friction. This not only reduces energy loss and improves the transmission efficiency of the drive mechanism, but also reduces wear on the eccentric wheel and the arc-shaped component, extending their service life, and also reduces noise during equipment operation.

[0047] Specifically, the reset elastic element is a helical spring, and the bottom frame and tail baffle are provided with spring posts 20 for connecting the two ends of the helical spring.

[0048] In this embodiment, the reset elastic element is a helical spring, which has good elasticity and cushioning performance. The spring posts on the bottom frame and tail baffle facilitate the installation, fixing, and positioning of the helical spring, enabling it to accurately perform its reset and cushioning functions. When the sieve plate reciprocates, the helical spring absorbs and releases energy, ensuring the sieve plate smoothly returns to its initial position.

[0049] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A material distribution device for an asphalt concrete mixing plant, characterized in that... include: The bottom frame has guide bars fixed on both sides of its bottom, and the guide bars are provided with "T"-shaped grooves; The sieve plate has side baffles on both sides, and the side baffles are provided with "T"-shaped steps that slide in conjunction with the "T"-shaped grooves. One end of the sieve plate is provided with a tail baffle. The sieve plate is divided into a coarse sieve area, a medium sieve area and a fine sieve area by partitions. The diameter of the sieve holes in the coarse sieve area, the medium sieve area and the fine sieve area is set from large to small. A drive mechanism is used to drive the screen plate to reciprocate along the "T"-shaped groove.

2. The material distribution device of the asphalt concrete mixing plant according to claim 1, characterized in that: The drive mechanism includes a drive motor fixed on the bottom frame, a rotating shaft driven by the drive motor, an eccentric wheel fixed on the rotating shaft, a reset elastic element disposed between the tail baffle and the bottom frame, and a driven component fixed on the screen plate, wherein the driven component is in contact with the eccentric wheel.

3. The material distribution device for an asphalt concrete mixing plant according to claim 2, characterized in that: A motor mounting plate is fixed on the bottom frame, and the drive motor is fixedly mounted on the motor mounting plate.

4. The material distribution device for an asphalt concrete mixing plant according to claim 3, characterized in that: The rotating shaft is connected to the drive motor via a pulley.

5. The material distribution device for an asphalt concrete mixing plant according to claim 2, characterized in that: The driven component includes a bracket fixed to the sieve plate and an arc-shaped component fixed to the bracket, the surface of which has a positioning ring groove for the outer edge of the eccentric wheel to extend into.

6. The material distribution device for an asphalt concrete mixing plant according to claim 5, characterized in that: The outer ring surface of the eccentric wheel is provided with a number of rolling steel balls at intervals.

7. The material distribution device for an asphalt concrete mixing plant according to claim 2, characterized in that: The reset elastic element is a helical spring, and the bottom frame and tail baffle are provided with spring posts for connecting the two ends of the helical spring.

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