Self-cleaning grain conveyor belt tensioning device

Abstract

The utility model provides a kind of self-cleaning type grain conveying belt tensioner, belong to grain transport technical field, including, workbench, the outer wall top of workbench is fixedly arranged with slide rail, and the outer wall top of slide rail is slidably sleeved with mounting bracket, and the both ends of mounting bracket are grooved and slidably embedded with moving frame, the inner wall of moving frame is rotatably embedded with driving wheel, and the outer wall of driving wheel is sleeved with conveyor belt. Driving cylinder pushes down lifting plate, linkage rod drives tensioning wheel to move along limiting groove, accurately extruding conveyor belt to quickly complete tensioning operation, mounting rod rotates with tensioning wheel to drive drying box and cleaning box to deflect synchronously, ensure that cleaning wheel and spray head always adhere to the surface of conveyor belt, drive servo rotates at high speed through transmission belt linkage double cleaning wheel, combine the residual material on the surface of conveyor belt in cleaning tank is efficiently removed by spray water flow, spray head in drying box continuously sprays hot air flow, and the instant drying of conveyor belt is realized by the secondary guidance of supporting wheel.

Description

Technical Field

[0001] This utility model belongs to the field of grain transportation technology, specifically relating to a self-cleaning grain conveyor belt tensioning device. Background Technology

[0002] In grain conveying systems, the tension of the conveyor belt directly affects conveying efficiency and equipment lifespan. Traditional tensioning devices mostly use manual adjusting screws or hydraulic mechanisms, requiring frequent shutdowns for operation. This not only reduces production efficiency but also limits adjustment accuracy, easily leading to conveyor belt slippage or overstretching. Furthermore, grain dust, grease, and other contaminants easily remain during grain conveying, and existing equipment generally lacks integrated cleaning functions, requiring regular manual washing, which not only increases maintenance costs but also causes production interruptions due to downtime for cleaning. While some equipment has attempted to add cleaning modules, the following drawbacks exist:

[0003] Separation of cleaning and tensioning functions: The cleaning wheel and the tensioning wheel operate independently, resulting in structural redundancy, large space occupation, and the inability to dynamically adjust the cleaning angle according to the position of the tensioning wheel, leading to unstable cleaning effect;

[0004] Lack of drying function: After rinsing, residual moisture on the surface of the conveyor belt can easily breed mold or clumps in grain transportation scenarios, posing a health and safety hazard.

[0005] Low dynamic cleaning efficiency: Relying on the friction drive of the conveyor belt to drive the cleaning wheel, the insufficient speed leads to incomplete cleaning, while adding an extra motor increases energy consumption and complexity;

[0006] Weak resistance to deviation: Conveyor belts are prone to deviation during long-term operation, and traditional guide wheel sets have poor adjustment flexibility, which exacerbates wear and the risk of grain spillage. Utility Model Content

[0007] The purpose of this invention is to provide a self-cleaning grain conveyor belt tensioning device, which aims to solve the problems mentioned in the background art.

[0008] A self-cleaning grain conveyor belt tensioning device includes,

[0009] The workbench has slide rails fixedly installed on both sides of the top of its outer wall, and a mounting frame is slidably sleeved on the top of the outer wall of the slide rails. The mounting frame has slots at both ends and a movable frame is slidably embedded therein. The inner wall of the movable frame is rotatably embedded with a drive wheel, and the outer wall of the drive wheel is sleeved with a conveyor belt.

[0010] A self-cleaning tensioning assembly is located on the outer wall of the workbench. The assembly includes a lifting plate, a limiting frame, support wheels, limiting grooves, a linkage rod, a mounting rod, a drying chamber, a cleaning chamber, tension wheels, cleaning wheels, a nozzle, and a drive assembly. The limiting frame is fixed to the inner wall of the workbench by a bracket. The limiting grooves are located on the outer walls of both ends of the limiting frame. One end of the linkage rod is rotatably inserted into the outer walls of both ends of the lifting plate. The tension wheels are rotatably embedded in the inner wall of the limiting grooves. The other end of the linkage rod is rotatably inserted into... At the center of the outer walls of both ends of the tensioning wheel, the support wheel is rotatably embedded in the bottom opening of the inner wall of the limiting frame. One end of the mounting rod is rotatably inserted into the outer wall of the limiting frame, and the other end of the mounting rod is rotatably sleeved on the outer wall of the tensioning wheel. The drying box and the cleaning box are respectively fixedly installed at the center of the outer wall of the mounting rod by the bracket. The cleaning wheel is rotatably embedded in the inner wall of the drying box, the nozzle is embedded in the inner wall of the cleaning box, the tensioning wheel is attached to the outer wall of the conveyor belt, and the drive assembly is located on the inner wall of the workbench.

[0011] Furthermore, the drive assembly includes a drive cylinder, a drive servo, and a transmission belt. The drive cylinder is fixedly disposed at the top center of the outer wall of the limit frame, and the output end of the drive cylinder is fixedly disposed at the bottom center of the outer wall of the lifting plate. The drive servo is fixedly disposed on one side of the outer wall of the drying chamber, and the output end of the drive servo is fixedly disposed on the outer wall of the cleaning wheel through the opening of the outer wall of the drying chamber. The transmission belt is connected to one end of the outer wall of the two cleaning wheels through a concave wheel drive.

[0012] Furthermore, an angle rod is fixedly installed on one side of the outer wall of the workbench by a bracket, and a guide wheel set is rotatably embedded on the inner wall of the angle rod.

[0013] Furthermore, positioning rods are fixedly installed on both sides of the top of the outer wall of the workbench, and a return spring is sleeved on the outer wall of the positioning rod. One end of the return spring is fixedly installed on the outer wall of the movable frame.

[0014] Furthermore, the outer wall of the movable frame is provided with positioning holes, and the positioning holes are matched with the positioning rods.

[0015] Furthermore, the conveyor belt is matched with the guide wheel assembly.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This system achieves integrated operation of conveyor belt tension adjustment and cleaning / drying. When adjusting tension, the drive cylinder pushes the lifting plate downwards, and the linkage rod moves the tensioning wheel along the limiting groove, precisely squeezing the conveyor belt to quickly complete the tensioning operation. Simultaneously, the mounting rod rotates with the tensioning wheel, causing the drying and cleaning chambers to deflect synchronously, ensuring the cleaning wheel and nozzles remain in contact with the conveyor belt surface. During cleaning, the drive servo, via the transmission belt, links the dual cleaning wheels to rotate at high speed, effectively removing residues from the conveyor belt surface in conjunction with the water spray inside the cleaning chamber. The nozzles inside the drying chamber continuously spray hot air, working in conjunction with the secondary guidance of the support wheels to achieve immediate drying of the conveyor belt, effectively preventing secondary contamination during grain transport. Furthermore, the angle rod and guide wheel assembly work together to ensure stable conveyor belt operation, while the return spring and positioning rod buffer the displacement impact of the moving frame. The overall structure significantly enhances self-cleaning efficiency and drying effect while improving tension adjustment accuracy, reducing equipment maintenance costs, and extending service life, making it particularly suitable for high-hygiene scenarios such as grain transport. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a perspective view of the lifting plate of this utility model;

[0021] Figure 3 This is a perspective view of the linkage rod of this utility model;

[0022] Figure 4 This is a perspective view of the angle rod of this utility model;

[0023] Figure 5 This is a perspective view of the tensioning wheel of this utility model.

[0024] In the diagram: 1. Workbench; 2. Mounting frame; 3. Moving frame; 4. Drive wheel; 5. Conveyor belt; 6. Angle rod; 7. Guide wheel assembly; 8. Lifting plate; 9. Limiting frame; 10. Limiting groove; 11. Linkage rod; 12. Mounting rod; 13. Drying box; 14. Cleaning box; 15. Tensioning wheel; 101. Slide rail; 102. Positioning rod; 103. Return spring; 301. Positioning hole; 801. Drive cylinder; 901. Support wheel; 1301. Drive servo; 1302. Transmission belt; 1303. Cleaning wheel; 1401. Nozzle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0028] Please see Figure 1-5 The technical solution provided in this embodiment is as follows:

[0029] A self-cleaning grain conveyor belt tensioning device includes,

[0030] Workbench 1, with slide rails 101 fixedly installed on both sides of the top of the outer wall of workbench 1, and mounting bracket 2 slidably sleeved on the top of the outer wall of slide rail 101, and movable bracket 3 slidably embedded in the slots at both ends of mounting bracket 2, drive wheel 4 rotatably embedded in the inner wall of movable bracket 3, and conveyor belt 5 sleeved on the outer wall of drive wheel 4.

[0031] A self-cleaning tensioning assembly is located on the outer wall of the workbench 1. The assembly includes a lifting plate 8, a limiting frame 9, support wheels 901, limiting grooves 10, a linkage rod 11, a mounting rod 12, a drying chamber 13, a cleaning chamber 14, a tensioning wheel 15, a cleaning wheel 1303, a nozzle 1401, and a drive assembly. The limiting frame 9 is fixed to the inner wall of the workbench 1 by a bracket. The limiting grooves 10 are located on the outer walls of both ends of the limiting frame 9. One end of the linkage rod 11 is rotatably inserted into the outer walls of both ends of the lifting plate 8. The tensioning wheel 15 is rotatably embedded in the inner wall of the limiting groove 10. The other end of the linkage rod 11... The tension wheel 15 is rotatably inserted at the center of the outer wall of both ends. The support wheel 901 is rotatably embedded in the bottom opening of the inner wall of the limit frame 9. One end of the mounting rod 12 is rotatably inserted into the outer wall of the limit frame 9, and the other end of the mounting rod 12 is rotatably sleeved on the outer wall of the tension wheel 15. The drying box 13 and the cleaning box 14 are respectively fixedly set at the center of the outer wall of the mounting rod 12 by the bracket. The cleaning wheel 1303 is rotatably embedded in the inner wall of the drying box 13. The nozzle 1401 is embedded in the inner wall of the cleaning box 14. The tension wheel 15 is attached to the outer wall of the conveyor belt 5. The drive assembly is located on the inner wall of the workbench 1.

[0032] In a specific embodiment of this utility model, the self-cleaning tensioning assembly first deploys the workbench 1 into the working environment. The nozzle 1401 is connected to an external drying airflow supply device via a hose and valve to supply cleaning water to the internal cleaning wheel of the drying chamber 13, facilitating the cleaning wheel 1303 to clean and rinse the conveyor belt 5. The drive cylinder 801 is activated, causing the lifting plate 8 to descend. The lifting plate 8 is pressed down via the linkage rod 11, and finally, the linkage rod 11 squeezes the tensioning wheel 15, causing the tensioning wheel 15 to move within the inner wall of the limiting groove 10, thereby achieving the function of cleaning the conveyor belt. The tension is adjusted by the compression of the tensioning wheel 15. Then, the drying box 13 and the cleaning box 14 rotate along with the tensioning wheel 15 by the rotation of the mounting rod 12 on the limit frame 9. The cleaning wheel 1303 is driven to rotate by the drive servo 1301. The cleaning wheel 1303 rotates continuously at high speed through the conveyor belt 5 to complete the rinsing and cleaning of the conveyor belt 5. Then, the support wheel 901 is used for reguiding. Hot air is supplied by the nozzle 1401 to achieve continuous drying of the conveyor belt. The angle rod 6 and the guide wheel group 7 are used to guide the conveyor belt 5 to prevent misalignment.

[0033] Specifically, the drive assembly includes a drive cylinder 801, a drive servo 1301, and a transmission belt 1302. The drive cylinder 801 is fixedly installed at the top center of the outer wall of the limit frame 9. The output end of the drive cylinder 801 is fixedly installed at the bottom center of the outer wall of the lifting plate 8. The drive servo 1301 is fixedly installed on one side of the outer wall of the drying chamber 13. The output end of the drive servo 1301 is fixedly installed on the outer wall of the cleaning wheel 1303 through the opening of the outer wall of the drying chamber 13. The transmission belt 1302 is connected to one end of the outer wall of the two cleaning wheels 1303 through a concave wheel drive.

[0034] In a specific embodiment of this utility model, the transmission belt 1302 is connected to the outer wall of one end of the two cleaning wheels 1303 via a concave wheel drive, which can ensure transmission stability.

[0035] Specifically, an angle rod 6 is fixedly installed on one side of the outer wall of the workbench 1 by a bracket, and a guide wheel set 7 is rotatably embedded in the inner wall of the angle rod 6.

[0036] In a specific embodiment of this utility model, the inner wall of the angle rod 6 is rotatably embedded with a guide wheel group 7, which can conveniently and continuously guide the conveyor belt 5.

[0037] Specifically, positioning rods 102 are fixedly installed on both sides of the top of the outer wall of the workbench 1, and a return spring 103 is sleeved on the outer wall of the positioning rods 102. One end of the return spring 103 is fixedly installed on the outer wall of the movable frame 3.

[0038] In a specific embodiment of this utility model, one end of the reset spring 103 is fixedly disposed on the outer wall of the movable frame 3, which can prevent it from hitting the positioning rod 102 when it touches the bottom.

[0039] Specifically, the outer wall of the movable frame 3 is provided with a positioning hole 301, and the positioning hole 301 matches the positioning rod 102.

[0040] In a specific embodiment of this utility model, the positioning hole 301 and the positioning rod 102 are matched to ensure the movement accuracy.

[0041] Specifically, the conveyor belt 5 and the guide wheel set 7 are matched with each other.

[0042] In a specific embodiment of this utility model, the conveyor belt 5 and the guide wheel group 7 are matched to each other to ensure guiding accuracy.

[0043] Working principle:

[0044] The self-cleaning tensioning assembly first deploys the workbench 1 into the working environment. The nozzle 1401 is connected to an external drying air supply device via a hose and valve to supply cleaning water to the internal cleaning wheel of the drying chamber 13, facilitating the cleaning wheel 1303 to clean and rinse the conveyor belt 5. The drive cylinder 801 is activated, causing the lifting plate 8 to descend. The lifting plate 8 is pressed down via the linkage rod 11, finally squeezing the tensioning wheel 15 through the linkage rod 11. This causes the tensioning wheel 15 to move within the inner wall of the limiting groove 10, thereby squeezing the conveyor belt 5 and achieving [cleaning effect]. The tension is adjusted, and then the installation rod 12 rotates on the limit frame 9, causing the drying box 13 and cleaning box 14 to rotate along with the tensioning wheel 15. The driving servo 1301 drives the cleaning wheel 1303 to rotate, and the continuous high-speed rotation of the cleaning wheel 1303 is achieved through the conveyor belt 5, completing the rinsing and cleaning of the conveyor belt 5. Then, the support wheel 901 is used for reguiding, and the nozzle 1401 supplies hot air to achieve continuous drying of the conveyor belt. The angle rod 6 and the guide wheel group 7 are used to guide the conveyor belt 5 to prevent misalignment.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-cleaning grain conveyor belt tensioning device, characterized by, include, The workbench (1) has slide rails (101) fixedly installed on both sides of the top of the outer wall of the workbench (1), and a mounting frame (2) is slidably sleeved on the top of the outer wall of the slide rails (101). The mounting frame (2) has slots at both ends and a movable frame (3) is slidably embedded therein. The inner wall of the movable frame (3) is rotatably embedded with a drive wheel (4), and the outer wall of the drive wheel (4) is sleeved with a conveyor belt (5). A self-cleaning tensioning assembly is located on the outer wall of the workbench (1). The self-cleaning tensioning assembly includes a lifting plate (8), a limiting frame (9), a support wheel (901), a limiting groove (10), a linkage rod (11), a mounting rod (12), a drying chamber (13), a cleaning chamber (14), a tensioning wheel (15), a cleaning wheel (1303), a nozzle (1401), and a drive assembly. The limiting frame (9) is fixedly mounted on the inner wall of the workbench (1) by a bracket. The limiting groove (10) is located on the outer walls of both ends of the limiting frame (9). One end of the linkage rod (11) is rotatably inserted into the outer walls of both ends of the lifting plate (8). The tensioning wheel (15) is rotatably embedded in the inner wall of the limiting groove (10). The other end of the linkage rod (11)... One end of the support wheel (901) is rotatably inserted into the center of the outer wall of the tensioning wheel (15). The support wheel (901) is rotatably embedded in the bottom opening of the inner wall of the limiting frame (9). One end of the mounting rod (12) is rotatably inserted into the outer wall of the limiting frame (9). The other end of the mounting rod (12) is rotatably sleeved on the outer wall of the tensioning wheel (15). The drying box (13) and the cleaning box (14) are respectively fixedly set at the center of the outer wall of the mounting rod (12) by the bracket. The cleaning wheel (1303) is rotatably embedded in the inner wall of the drying box (13). The nozzle (1401) is embedded in the inner wall of the cleaning box (14). The tensioning wheel (15) is attached to the outer wall of the conveyor belt (5). The drive assembly is located on the inner wall of the workbench (1).

2. The self-cleaning grain conveyor belt tensioning device of claim 1, wherein, The drive assembly includes a drive cylinder (801), a drive servo (1301), and a transmission belt (1302). The drive cylinder (801) is fixedly disposed at the top center of the outer wall of the limit frame (9). The output end of the drive cylinder (801) is fixedly disposed at the bottom center of the outer wall of the lifting plate (8). The drive servo (1301) is fixedly disposed on one side of the outer wall of the drying chamber (13). The output end of the drive servo (1301) is fixedly disposed at the outer wall of the cleaning wheel (1303) through the opening of the outer wall of the drying chamber (13). The transmission belt (1302) is connected to the outer wall of one end of the two cleaning wheels (1303) through a concave wheel drive.

3. The self-cleaning grain conveyor belt tensioning device of claim 2, wherein, An angle rod (6) is fixedly installed on one side of the outer wall of the workbench (1) by a bracket, and a guide wheel assembly (7) is rotatably embedded in the inner wall of the angle rod (6).

4. The self-cleaning grain conveyor belt tensioning device of claim 3, wherein, Positioning rods (102) are fixedly installed on both sides of the top of the outer wall of the workbench (1), and a return spring (103) is sleeved on the outer wall of the positioning rods (102). One end of the return spring (103) is fixedly installed on the outer wall of the movable frame (3).

5. The self-cleaning grain conveyor belt tensioning device of claim 4, wherein, The outer wall of the movable frame (3) is provided with a positioning hole (301), and the positioning hole (301) matches the positioning rod (102).

6. A self-cleaning grain conveyor belt tensioning device according to claim 5, wherein, The conveyor belt (5) is matched with the guide wheel assembly (7).

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