An anti-piling mechanism for sand and gravel belt conveyors
By installing an anti-stacking mechanism on the transport machine, and using a motor-driven turntable to generate centrifugal force and high-pressure gas for cleaning, the problem of sand and gravel agglomeration and accumulation is solved, achieving efficient transportation and storage of sand and gravel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIAOTOU YONGXIN MINING CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-03
AI Technical Summary
Sand and gravel tend to clump together and accumulate under the conveyor during transportation, causing inconvenience in transportation and storage, and existing technologies are unable to effectively solve this problem.
An anti-stacking mechanism is installed on the conveyor, including a turntable, a motor, and baffles. The motor's forward, reverse, or alternating forward and reverse rotation generates centrifugal force to disperse the sand and gravel. The turntable is cleaned with high-pressure gas. Combined with the inclined discharge hole and baffle design, the sand and gravel are dispersed and prevented from accumulating.
It effectively breaks up agglomerated sand and gravel, prevents accumulation, improves transportation efficiency, reduces manual intervention, has a self-cleaning function, and ensures the normal operation of the transport vehicle.
Smart Images

Figure CN224449585U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand and gravel transportation, and more specifically, to an anti-stacking mechanism for sand and gravel belt conveyors and a conveyor having the anti-stacking mechanism. Background Technology
[0002] Sand and gravel are widely used as essential raw materials for construction, roads, and infrastructure. In mining companies, raw ore undergoes coarse crushing, fine crushing, and shaping processes after being mined, before being transported to warehouses or buffer depots by belt conveyors. After crushing, the sand and gravel particles are relatively fine, approximately 0.075-5mm. During the crushing process, water is often sprayed into the sand and gravel to prevent dust contamination; this process is called "wet sand making." However, wet sand making can lead to the sand and gravel agglomerating, which negatively impacts subsequent transportation and storage.
[0003] In addition, after the sand and gravel are discharged from the discharge end of the conveyor, they pile up in the shape of hills below the conveyor. When the height exceeds the height of the conveyor, it will affect the operation of the equipment. Therefore, in actual work, when the sand and gravel piles up to a certain height, manual intervention will be carried out to spread the sand and gravel out. Summary of the Invention
[0004] The purpose of this application is to solve the problem of sand and gravel agglomerating and accumulating.
[0005] On the one hand, an anti-stacking mechanism is provided, including a transport component and an anti-stacking mechanism disposed on the transport component. The anti-stacking mechanism includes a turntable and a motor connected to the turntable. A rotating component is disposed between the motor and the turntable. The rotation of the anti-stacking mechanism generates centrifugal force, and the sand and gravel are broken up and dispersed under the action of centrifugal force.
[0006] Furthermore, in an embodiment of the anti-stacking mechanism, a baffle is provided on the side of the turntable near the transport component.
[0007] Furthermore, in an embodiment of the anti-stacking mechanism, the motor has a forward rotation mode, a reverse rotation mode, and a forward and reverse alternating mode, and the three modes are switched by a force sensor installed on the motor.
[0008] Furthermore, in an embodiment of the anti-stacking mechanism, the turntable is formed by side walls and a bottom, and the bottom is provided with a connection part for connecting to a motor.
[0009] Furthermore, in an embodiment of the anti-stacking mechanism, a first discharge hole and a second discharge hole are provided on the side wall, wherein the height from the apex of the first discharge hole to the bottom edge is less than the diameter of the first discharge hole.
[0010] Furthermore, in an embodiment of the anti-stacking mechanism, the bottom is configured as an umbrella-shaped structure with both sides inclined, and the angle between the inclined surface and the bottom is an acute angle.
[0011] Furthermore, in an embodiment of the anti-stacking mechanism, this application provides another turntable, wherein a first discharge hole and a second discharge hole are provided on the side wall of the turntable, and the diameter of the second discharge hole is larger than the diameter of the first discharge hole.
[0012] Furthermore, in an embodiment of the anti-stacking mechanism, the baffle is configured in a shape corresponding to the turntable, and the gap between the baffle and the turntable is smaller than the particle size of the sand and gravel.
[0013] Furthermore, in an embodiment of the anti-stacking mechanism, the baffle is provided with at least one air inlet and at least one air outlet, and the air inlet and air outlet are connected.
[0014] On the other hand, a transport vehicle is provided, which includes the anti-stacking mechanism described in various embodiments.
[0015] Compared with the prior art, the present invention has the following technical effects:
[0016] 1. The conveyor is equipped with an anti-stacking mechanism, which can break up the aggregated sand and gravel in time, making it convenient for the transportation and storage of sand and gravel; on the other hand, it can spread the sand and gravel in all directions to prevent them from piling up under the conveyor, saving manual labor.
[0017] 2. The motor of the anti-stacking mechanism has three operating modes: forward rotation, reverse rotation, and alternating forward and reverse rotation. These modes are switched via a force sensor mounted on the motor. Different operating modes can be freely switched according to the state of the sand and gravel. For example, when the force exerted by the sand and gravel on the anti-stacking mechanism is small, the motor operates in forward or reverse rotation mode, which facilitates the rapid passage of sand and gravel. When the force exerted by the sand and gravel on the anti-stacking mechanism is large, the motor operates in alternating forward and reverse rotation mode, which can break up the compacted sand and gravel.
[0018] 3. The baffle of the anti-stacking mechanism is equipped with air inlet and exhaust ports. High-pressure gas enters through the air inlet and flows out through the exhaust port, blowing off the sand and gravel remaining on the turntable, thus having a self-cleaning function. Attached Figure Description
[0019] Referring to the accompanying drawings, the disclosure of this utility model will become more readily understood. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, similar numbers in the drawings are used to denote similar components, wherein:
[0020] Figure 1An installation diagram of the anti-stacking mechanism according to an embodiment is shown;
[0021] Figure 2 A partially enlarged view of the installation diagram of the anti-stacking mechanism according to an embodiment is shown;
[0022] Figure 3 A perspective view of the anti-stacking mechanism according to an embodiment is shown;
[0023] Figure 4 A partial cross-sectional view of the anti-stacking mechanism according to an embodiment is shown;
[0024] Figure 5 A perspective view of the turntable according to an embodiment is shown;
[0025] Figure 6 A cross-sectional view of the turntable according to an embodiment is shown;
[0026] Figure 7 A perspective view of the turntable according to an embodiment is shown;
[0027] Figure 8 A perspective view of the baffle according to an embodiment is shown; Detailed Implementation
[0028] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be construed as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0029] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.
[0030] refer to Figure 1 and Figure 2 This paper illustrates an anti-stacking mechanism 20 for a sand and gravel belt conveyor, comprising a conveyor assembly 10 and an anti-stacking mechanism 20 disposed on the conveyor assembly 10. Preferably, the anti-stacking mechanism 20 is disposed at the discharge end of the conveyor assembly 10. The conveyor assembly 10 is provided with a belt and pulleys. Driven by an electric motor, the pulleys rotate, causing the belt to perform a cyclical motion, thereby conveying sand and gravel from one end of the belt to the other end.
[0031] Continue to refer to Figure 3and Figure 4 The anti-stacking mechanism 20 includes a turntable 201 and a motor 203 connected to the turntable 201. A rotating component 202 is provided between the motor 203 and the turntable 201. The turntable 201 rotates under the drive of the motor 203 via the rotating component 202. A baffle 204 is provided on the side of the turntable 201 near the transport component 10. In use, the anti-stacking mechanism 20 is fixed to the transport component 10. Driven by the motor 203, the turntable 201 rotates. Sand and gravel fall from the pulley into the turntable 201. Under the action of centrifugal force, the sand and gravel are scattered and dispersed in all directions.
[0032] Furthermore, motor 203 has three operating modes: forward rotation mode, reverse rotation mode, and alternating forward and reverse rotation mode, which are switched by a force sensor installed on motor 203. When the anti-stacking mechanism 20 encounters less resistance, motor 203 operates in reverse or forward rotation mode, which helps to quickly break up and disperse the sand and gravel; when the anti-stacking mechanism 20 encounters greater resistance, motor 203 operates in alternating forward and reverse rotation mode, which can break up and disperse the compacted sand and gravel.
[0033] Continue to refer to Figure 5 and Figure 6 The diagram illustrates one structural configuration of a turntable 201. The turntable 201 is formed by a side wall 2011 and a bottom 2014, with the bottom 2014 having a connecting portion 2015 for connection to a motor 203. The side wall 2011 has a first discharge hole 2012 and a second discharge hole 2013. Preferably, there are multiple first discharge holes 2012 and second discharge holes 2013. The height from the apex of the first discharge hole 2012 to the edge of the bottom 2014 is less than the diameter of the first discharge hole 2012. This configuration allows sand and gravel to pass through the first discharge hole 2012 without obstruction. The bottom 2014 is configured as an umbrella-shaped structure with inclined sides, the angle between the inclined surface and the bottom being an acute angle, preferably 5° to 10°. This configuration allows sand and gravel to quickly disperse to both sides and be discharged from the discharge holes. During use, the sand and gravel are gradually discharged from the first discharge hole 2012 and the second discharge hole 2013 along the inclined surface of the bottom 2014 under the action of centrifugal force.
[0034] Continue to refer to Figure 7 This illustrates another structural configuration of the turntable 201. The diameter of the second discharge hole 2013 is larger than the diameter of the first discharge hole 2012, and the diameter increases layer by layer. Other configurations are the same as those of the turntable in the above embodiment. The advantage of this configuration is that the sand and gravel stratify under centrifugal force, with larger particles on the upper layer and smaller particles on the lower layer. This allows the larger particles to be discharged from the larger diameter second discharge hole 2013, and the smaller particles to be discharged from the smaller diameter first discharge hole 2012.
[0035] Continue to refer to Figure 8 The baffle 204 is configured in a shape corresponding to the turntable 201, preferably an arc shape, and the gap between the baffle 204 and the turntable 201 is small. Preferably, the gap between the baffle 204 and the turntable 201 is smaller than the particle size of the sand. In use, when the sand in the turntable 201 turns to the side of the baffle 204, it is blocked by the baffle 204 and cannot pass through. Therefore, the sand can only be scattered from the direction away from the baffle 204. The advantage of this design is that the sand will not scatter under the pulley or on the transport assembly 10.
[0036] The baffle 204 is provided with at least one air inlet 2041 and at least one air outlet 2042. In use, gas enters through the air inlet 2041, circulates inside, and then exits through the air outlet 2042, thereby blowing off the sand and gravel adhering to the turntable 201 and playing a self-cleaning role.
[0037] On the other hand, a transport vehicle is provided, which includes the anti-stack mechanism 20 according to various embodiments.
[0038] The specific embodiments described above are merely for the purpose of more clearly illustrating the principle of this utility model, wherein the various components are clearly shown or described to make the principle of this utility model easier to understand. Various modifications or variations can be easily made to this utility model by those skilled in the art without departing from the scope of this utility model. Therefore, it should be understood that all such modifications or variations should be included within the patent protection scope of this utility model.
Claims
1. A material pile-up prevention mechanism for a sandstone belt conveyor, comprising a conveying assembly (10), and a material pile-up prevention mechanism (20) arranged on the conveying assembly (10), characterized in that, The anti-stacking mechanism (20) includes a turntable (201) and a motor (203) connected to the turntable (201). The turntable (201) is formed by a side wall (2011) and a bottom (2014). The bottom (2014) is provided with a connecting part (2015) connected to the motor (203). The side wall (2011) is provided with a first discharge hole (2012) and a second discharge hole (2013). The height from the top of the first discharge hole (2012) to the edge of the bottom (2014) is less than the diameter of the first discharge hole (2012). The diameter of the second discharge hole (2013) is greater than the diameter of the first discharge hole (2012). A rotating part (202) is provided between the motor (203) and the turntable (201). The anti-stacking mechanism (20) rotates to generate centrifugal force, and the sand and gravel are broken up and scattered under the action of centrifugal force.
2. The anti-piling mechanism of claim 1, wherein, A baffle (204) is provided on the side of the turntable (201) near the transport component (10).
3. The anti-piling mechanism of claim 1, wherein, The motor (203) has a forward rotation mode, a reverse rotation mode, and a forward and reverse alternating mode. The three modes are switched by a force sensor installed on the motor (203).
4. The anti-piling mechanism of claim 1, wherein, The bottom (2014) is configured as an umbrella-shaped structure with both sides tilted, and the angle between the inclined surface and the bottom is an acute angle.
5. The anti-stacking mechanism according to claim 2, characterized in that, The baffle (204) is configured in a shape corresponding to the turntable (201), and the gap between the baffle (204) and the turntable (201) is smaller than the particle size of the sand.
6. A material pile preventing mechanism according to any one of claims 2 or 5, characterized in that, The baffle (204) is provided with at least one air inlet (2041) and at least one air outlet (2042), and the air inlet (2041) and the air outlet (2042) are connected.
7. A conveyor characterized by The transport aircraft includes an anti-stack mechanism (20) as described in any one of claims 1-6.