Anti-blocking device of belt conveyor
By introducing annular and linear moving mechanisms into the conveyor belt discharge chute, combined with a stirring rod and vertical chain curtain structure, the problem of easy clogging of the discharge chute is solved, material conveying efficiency is improved, equipment damage and dust generation are reduced, and the adaptability and practicality of the device are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DUOJI RENEWABLE RESOURCES CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-21
AI Technical Summary
In the existing technology, the material chute is prone to blockage, resulting in low material conveying efficiency, and the vibration motor has a slow unblocking efficiency, which may lead to belt conveyor overload and equipment damage.
A material blocking device for belt conveyors is designed, which adopts a ring and linear movement mechanism in combination with a stirring rod and a vertical rod chain curtain structure. By stirring and guiding the material, the impact force of the material on the discharge chute is reduced, and the position of the vertical rod is precisely controlled by a motor to optimize material guidance and buffering.
It improves the efficiency of material flow, reduces dust generation, lowers the risk of equipment damage, enhances the anti-clogging ability and adaptability of the material chute, and reduces maintenance costs.
Smart Images

Figure CN224146752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of anti-blocking material devices, specifically an anti-blocking material device for belt conveyors. Background Technology
[0002] In industrial production, belt conveyors are a commonly used material conveying equipment, widely applied in mining, metallurgy, chemical, and power industries. During the material conveying process, the discharge chute is an indispensable component, guiding the material on the belt conveyor to a designated location. However, in actual use, material blockage frequently occurs in the discharge chute. Once the discharge chute is blocked, it not only affects the normal material conveying and reduces production efficiency, but may also lead to overload operation of the belt conveyor, equipment damage, and increased maintenance costs.
[0003] To solve the problem of chute blockage, the traditional method is to install a chute detector and a vibrating motor on the chute. The chute detector detects the blockage of material in the chute, and when a blockage is detected, the vibrating motor starts, vibrating the chute to force the material to fall and clear the blockage. However, this method has the problem of slow clearing efficiency of the vibrating motor. Utility Model Content
[0004] The present invention mainly provides a belt conveyor anti-blocking device to solve the problem of slow unblocking efficiency of vibratory motor.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A conveyor belt anti-clogging device includes a discharge chute with a circular mounting section. An annular moving mechanism is arranged inside the circular mounting section, and a connecting frame is mounted on the annular moving mechanism. A stirring rod is vertically mounted on the connecting frame. A linear moving mechanism is mounted on the discharge chute, and the moving direction of the linear moving mechanism is the conveying direction of the conveyor belt. A crossbeam is mounted on the linear moving mechanism, and the crossbeam is perpendicular to the conveying direction of the conveyor belt. Multiple vertical rods are suspended below the crossbeam. The vertical rods can be mounted in any existing manner, such as by attaching a chain to the upper end of the vertical rod, and the crossbeam is equipped with a connecting seat, hook, clamp, etc., detachably connected to the chain. The lower end of the vertical rod is higher than the upper end of the stirring rod, so that the stirring rod will not collide with the vertical rod during circumferential movement. Working Principle: A ring-shaped moving mechanism drives the connecting frame to move in a ring, which in turn drives the vertically arranged stirring rods to circumferentially agitate within a certain range in the middle of the discharge chute. This, in conjunction with the vibrating motor, accelerates the material falling into the discharge chute. Simultaneously, a linear moving mechanism can move multiple vertical rods forming a chain curtain closer to or further away from the output end of the conveyor belt, thus targeting different materials. Beneficial Effects: The circumferential agitation of the stirring rods within a certain range in the discharge chute, in conjunction with the vibrating motor, accelerates the material falling, thereby improving dredging efficiency. By setting up a horizontal frame with multiple vertical rods suspended at its lower end, these rods form a chain curtain. When material from the conveyor belt enters the discharge chute, it first impacts the vertical rods forming the chain curtain. Upon impact, the vertical rods swing within a certain range to dissipate force, thereby reducing the direct impact force of the material on the discharge chute, reducing dust generation. Furthermore, the falling range of the material after impacting the chain curtain is smaller than the falling range after directly impacting the discharge chute. Thus, the vertical rods forming the chain curtain guide the material in a concentrated manner, improving the anti-clogging effect of the discharge chute in advance.
[0007] Furthermore, the annular moving mechanism includes an annular tooth disposed on the circular mounting section, an annular guide rail disposed on the lower side of the annular tooth, a slide block slidably connected to the annular guide rail, a first motor disposed on the slide block, and a transmission tooth meshing with the annular tooth disposed at the output end of the first motor; the connecting frame is disposed on the slide block. In use, the first motor is energized and drives the transmission tooth to rotate. Since the transmission tooth meshes with the annular tooth and the annular tooth is fixed to the circular mounting section, the slide block is driven to slide annularly on the annular guide rail. The stirring rod and the connecting frame are synchronously displaced through the annular movement of the slide block, so that the stirring rod can perform circumferential stirring within a certain range in the middle of the discharge chute. This structure, with its ring teeth and ring guide rails working together, provides stable and precise guidance for the movement of the slide, ensuring that the slide can run stably along a predetermined ring trajectory. Furthermore, the first motor, through the strong stability of its meshing with the ring teeth via transmission teeth, ensures that the stirring rod always performs circumferential stirring at a stable speed and trajectory, continuously and effectively assisting the material in falling. When the belt conveyor is conveying materials, the movement of the first motor drives the slide, connecting frame, stirring rod, and other components to move to the back side of the chain curtain formed by the vertical rod, thereby preventing the material from directly impacting the components.
[0008] Furthermore, the upper end of the discharge chute is detachably connected to a leak-proof groove. With this structure, during material conveying by the belt conveyor, the leak-proof groove is installed at the upper end of the discharge chute, forming a transition area. The material first passes through the leak-proof groove before entering the main body of the discharge chute, preventing the material from overflowing from the upper edge of the discharge chute due to impact or discharge angle. When cleaning or maintenance of the leak-proof groove or the discharge chute is required, the leak-proof groove can be separated from the discharge chute by disassembling the connecting parts.
[0009] Furthermore, the linear movement mechanism includes a mounting frame disposed at the top of the leak-proof groove. The mounting frame is equipped with a linear guide rod and a linear screw rotatably connected thereto. One end of the linear screw passes through the mounting frame on the same side and is connected to the output end of a second motor. The crossbeam is threadedly connected to the linear screw, and the crossbeam is slidably connected to the linear guide rod. In use, after the second motor starts, it drives the linear screw to rotate. Under the limiting action of the linear guide rod, the crossbeam moves along the axial direction of the linear screw. Using this structure, the position of the crossbeam and the vertical chain curtain in the conveyor direction can be precisely controlled through the cooperation of the linear guide rod and the linear screw. The operator can flexibly adjust the position of the vertical chain curtain by controlling the forward and reverse rotation of the second motor according to the characteristics of the material (such as particle size, conveying speed, flow rate, etc.) and the actual material feeding situation. For example, for materials with larger particles and higher flow rates, the vertical bar chain curtain can be adjusted to a position closer to the conveyor belt output end for better material guidance and buffering; for materials with smaller particles and lower flow rates, the vertical bar chain curtain can be adjusted to be further away from the conveyor belt output end to optimize the material discharge effect. This precise position adjustment function greatly improves the device's adaptability to different materials and enhances the anti-clogging capability of the discharge chute.
[0010] Furthermore, the stirring rod is detachably connected to the connecting frame, and the crossbar is detachably connected to the displacement seat. This structure facilitates the replacement of the stirring rod, reduces maintenance costs, and eliminates the need for extensive disassembly and repair of the entire annular moving mechanism when the stirring rod malfunctions; only the stirring rod needs to be quickly replaced. The detachable connection between the crossbar and the displacement seat makes maintenance, cleaning, and replacement of the crossbar and vertical rods more convenient. Vertical rods of different materials, lengths, or densities can be flexibly replaced according to the actual material conditions to optimize material guidance and buffering effects, improve the anti-clogging performance of the discharge chute, and enhance the versatility and practicality of the device.
[0011] Beneficial effects: 1. By agitating the material within a certain range in the chute, the stirring rod can accelerate the falling of materials in conjunction with the vibrating motor, thereby improving the dredging efficiency; 2. By setting up a horizontal frame and suspending multiple vertical rods at the lower end of the frame, the multiple vertical rods form a chain curtain. When the material from the conveyor belt enters the chute, it first impacts the vertical rods forming the chain curtain. When impacted, the vertical rods swing within a certain range to dissipate the force, thereby reducing the impact force of the material directly on the chute, reducing dust generation, and the falling range of the material after impacting the chain curtain is smaller than the falling range of the material directly impacting the chute. Thus, the vertical rods forming the chain curtain can be used to concentrate and guide the material, thereby improving the anti-clogging effect of the chute in advance. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the installation of the ring-shaped moving mechanism in this embodiment;
[0013] Figure 2 This is a schematic diagram of the installation of the linear motion mechanism in this embodiment;
[0014] Figure 3 This is a cross-sectional view of the anti-leakage groove in this embodiment.
[0015] Reference numerals: 1. Circular mounting section; 2. Annular moving mechanism; 201. Annular gear; 202. Annular guide rail; 203. Slide seat; 204. First motor; 205. Transmission gear; 3. Connecting frame; 4. Stirring rod; 5. Linear moving mechanism; 5. Mounting frame; 501. Linear screw; 502. Second motor; 503. Linear guide rod; 504. Horizontal frame; 6. Vertical rod; 7. Leak-proof groove; 8. Detailed Implementation
[0016] The following will provide a more detailed description of the technical solution of the belt conveyor anti-blocking device of this utility model in conjunction with the embodiments.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 this utility model based on the specific circumstances.
[0018] As shown in Figures 1, 2, and 3, a conveyor belt anti-blocking device according to this embodiment includes a discharge chute with a circular mounting section 1. An annular moving mechanism 2 is provided on the inner side of the circular mounting section 1. A connecting frame 3 is provided on the annular moving mechanism 2. A stirring rod 4 is vertically provided on the connecting frame 3. A linear moving mechanism 5 is provided on the discharge chute. The moving direction of the linear moving mechanism 5 is the conveying direction of the conveyor belt. A crossbeam 6 is provided on the linear moving mechanism 5. The setting direction of the crossbeam 6 is perpendicular to the conveying direction of the conveyor belt. Multiple vertical rods 7 are suspended below the crossbeam 6. The annular moving mechanism 2 includes an annular tooth 201 disposed on the circular mounting section 1. An annular guide rail 202 is disposed on the lower side of the annular tooth 201. A slide block 203 is slidably connected to the annular guide rail 202. A first motor 204 is disposed on the slide block 203. The output end of the first motor 204 is provided with a transmission tooth 205 that meshes with the annular tooth 201. The connecting frame 3 is disposed on the slide block 203. A leak-proof groove 8 is detachably connected to the upper end of the discharge chute. The linear moving mechanism 5 includes a mounting frame 501 disposed at the top of the leak-proof groove 8. The mounting frame 501 is equipped with a linear guide rod 504 and a linear screw 502 rotatably connected thereto. One end of the linear screw 502 passes through the mounting frame 501 on the same side and is connected to the output end of a second motor 503. A crossbeam 6 is threadedly connected to the linear screw 502, and the crossbeam 6 is slidably connected to the linear guide rod 504. The stirring rod 4 is detachably connected to the connecting frame 3, and the crossbeam 6 is detachably connected to the displacement seat. Working principle: The annular moving mechanism 2 drives the connecting frame 3 to move in annular motion, which in turn drives the vertically arranged stirring rod 4 to circumferentially stir within a certain range in the middle of the discharge chute, thereby cooperating with the vibrating motor to accelerate the falling of material in the discharge chute. Simultaneously, the linear moving mechanism 5 can drive multiple vertical rods 7 forming a chain curtain to move closer to or further away from the output end of the belt conveyor, thus working for different materials.Beneficial effects: By agitating the material within a certain range in the chute, the stirring rod 4 can accelerate the falling of materials in conjunction with the vibrating motor, thereby improving the dredging efficiency. By setting up a crossbeam 6 and suspending multiple vertical rods 7 at the lower end of the crossbeam 6, the multiple vertical rods 7 form a chain curtain. When the material from the belt conveyor enters the chute, it first impacts the vertical rods 7 forming the chain curtain. When impacted, the vertical rods 7 will swing within a certain range to dissipate force, thereby reducing the impact force of the material directly on the chute, reducing dust generation, and the falling range of the material after impacting the chain curtain is smaller than the falling range of the material directly impacting the chute. Thus, the vertical rods 7 forming the chain curtain can be used to guide the material in a concentrated manner, thereby improving the anti-clogging effect of the chute in advance.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A belt plow device, characterized in that: The device includes a discharge chute with a circular mounting section. An annular moving mechanism is provided on the inner side of the circular mounting section. A connecting frame is provided on the annular moving mechanism. A stirring rod is vertically provided on the connecting frame. A linear moving mechanism is provided on the discharge chute. The moving direction of the linear moving mechanism is the conveying direction of the belt conveyor. A cross frame is provided on the linear moving mechanism. The setting direction of the cross frame is perpendicular to the conveying direction of the belt conveyor. Multiple vertical rods are suspended below the cross frame.
2. The material blocking prevention device for a belt conveyor according to claim 1, characterized in that: The annular moving mechanism includes an annular tooth disposed on the circular mounting section, an annular guide rail disposed on the lower side of the annular tooth, a slide block slidably connected to the annular guide rail, a first motor disposed on the slide block, and a transmission tooth that meshes with the annular tooth disposed at the output end of the first motor; the connecting frame is disposed on the slide block.
3. The material blocking prevention device of the belt conveyor according to claim 1, characterized in that: The upper end of the feeding chute is detachably connected to a leak-proof groove.
4. The material blocking prevention device of the belt conveyor according to claim 3, characterized in that: The linear movement mechanism includes a mounting frame disposed at the top of the leak-proof groove. The mounting frame is provided with a linear guide rod and a linear screw rod rotatably connected thereto. Either end of the linear screw rod passes through the mounting frame on the same side and is connected to the output end of a second motor. The cross frame is threadedly connected to the linear screw rod, and the cross frame is slidably connected to the linear guide rod.
5. The material plugging prevention device of a belt conveyor according to claim 4, characterized in that: The stirring rod is detachably connected to the connecting frame, and the crossbar is detachably connected to the displacement seat.