Conveyor belt roller anti-deviation structure

Abstract

The embodiment of the utility model provides an anti-deviation structure of a conveying belt roller, and relates to the technical field of transportation equipment. The conveying belt roller anti-deviation structure comprises a frame, the inner wall of the frame is rotatably connected with a rolling cylinder, the center of the outer wall of the rolling cylinder is slidably connected with a convex ring, the convex ring is used for bearing the gravity center of a conveyed material, the outer wall of the frame is slidably connected with a balance rod, and the upper end of the balance rod is rotatably connected with a balance plate used for assisting the convex ring in bearing the gravity center of the conveyed material. The anti-deviation structure based on automatic response of material gravity center deviation is arranged, the supporting plate is used for sensing unbalance loading pressure, the toothed plate, the gear and the threaded rod are linked to drive the balance rod and the balance plate to automatically adjust the position, and therefore materials are guided to return to the center area of the roller. The structure is sensitive in response and accurate in adjustment, dynamic deviation correction in the running process of the conveying belt can be achieved without depending on an external control system, and the stability and running safety of a conveying system are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of transportation equipment technology, and in particular to a conveyor belt roller anti-deviation structure. Background Technology

[0002] Conveyor belt misalignment is a common and serious malfunction during the long-term operation of belt conveyors. Misalignment not only leads to wear and tear on the conveyor belt edges, and even causes downtime, affecting production efficiency and equipment lifespan, but can also cause material spillage and environmental pollution. This problem is particularly prominent in long-distance, high-capacity, or continuously operating conveyor systems. Since these systems typically handle material transport in critical production processes, severe misalignment can damage equipment and even disrupt the entire production line, resulting in significant economic losses.

[0003] Traditional roller structures typically employ a simple cylindrical design with a smooth surface or only a basic rubber coating, lacking effective deviation correction capabilities. While this structure is easy to manufacture and inexpensive, it falls short in handling minor deviations during conveyor belt operation. Even slight misalignment often requires manual adjustment of the roller angle or the addition of self-aligning idlers for correction. However, manual intervention suffers from lag and low adjustment precision, failing to meet the demands of modern industrial automation and continuous production. Furthermore, frequent manual maintenance increases operating costs and workload, reducing the overall system efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a conveyor belt roller anti-deviation structure that can prevent belt deviation caused by the shift of the material's center of gravity.

[0005] This utility model provides a conveyor belt roller anti-deviation structure, including a frame, a rolling drum rotatably connected to the inner wall of the frame, a convex ring slidably connected to the center of the outer wall of the rolling drum, the convex ring being used to support the center of gravity of the transported material, a balance bar slidably connected to the outer wall of the frame, and a balance plate rotatably connected to the upper end of the balance bar, the balance plate being used to assist the convex ring in supporting the center of gravity of the transported material.

[0006] Preferably, the two ends of the outer wall of the frame are fixedly connected to fixing rods, and the fixing rods are symmetrical to each other based on the balance rod as the center.

[0007] Preferably, the end of the balance bar furthest from the balance plate is threaded with a threaded rod, which is used for helical transmission to drive the balance bar to slide against the outer wall of the frame.

[0008] Preferably, a sliding rod is slidably connected to the inner wall of the fixed rod, one end of which passes through the upper end of the fixed rod and is fixedly connected to a support plate, the support plate being used for auxiliary support when the center of the material shifts.

[0009] Preferably, a toothed plate is fixedly connected to the end of the sliding rod away from the support plate, a spur gear is meshed with the tooth grooves of the toothed plate, a rotating shaft is fixedly connected to the side of the spur gear away from the toothed plate, a one-way bearing is fixedly connected to the side of the rotating shaft away from the spur gear, a threaded rod is rotatably connected to the side of the one-way bearing away from the rotating shaft, and a telescopic spring is fixedly connected to the opposite side of the support plate and the sliding rod.

[0010] Preferably, a round rod is fixedly connected to the inner side of the frame, a clamping plate is slidably connected to the outer wall of the round rod, a cleaning scraper is fixedly connected to the side wall of the clamping plate, and the inner wall of the cleaning scraper is slidably connected to the outer wall of the rolling cylinder.

[0011] Preferably, a push plate is fixedly connected to the side of the balance bar near the rolling cylinder, and a return spring is fixedly connected to the opposite side of the push plate and the clamping plate.

[0012] The beneficial effects of this application are:

[0013] This conveyor belt roller anti-deviation structure utilizes an automatic response mechanism based on material center of gravity shift. It senses off-center load pressure using a support plate and, through the linkage of a toothed plate, gears, and threaded rod, automatically adjusts the position of the balance bar and balance plate, guiding the material back to the center area of ​​the roller. This structure is highly responsive and precise, enabling dynamic correction of the conveyor belt during operation without relying on an external control system. It effectively prevents roller deviation caused by uneven material distribution, significantly improving the stability and operational safety of the conveyor system.

[0014] This conveyor belt roller anti-deviation structure utilizes a linked cleaning scraper mechanism. While adjusting the conveyor belt roller to prevent deviation, a push plate drives a clamping plate to slide along a circular rod, thereby driving the cleaning scraper to simultaneously clean the outer wall of the roller. This cleaning structure requires no external power source, relying entirely on mechanical linkage control. It automatically removes impurities from the roller surface during each adjustment, effectively preventing changes in roller diameter and uneven friction caused by dust and debris accumulation, thus avoiding conveyor belt slippage or deviation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 This is a partial three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 4 This is an embodiment of the present utility model. Figure 2 Enlarged 3D structural diagram at point A.

[0020] icon:

[0021] 101. Frame; 102. Rolling cylinder; 103. Convex ring;

[0022] 201. Balance bar; 202. Balance plate; 203. Fixed bar; 204. Sliding bar; 205. Support plate;

[0023] 301. Threaded rod; 302. One-way bearing; 303. Shaft; 304. Spur gear; 305. Gear plate; 306. Telescopic spring;

[0024] 401. Round rod; 402. Return spring; 403. Cleaning scraper; 404. Clamping plate; 405. Push plate. Detailed Implementation

[0025] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Please refer to Figures 1 to 4 This utility model embodiment provides a conveyor belt roller anti-deviation structure, including a frame 101, which serves as the basic support part of the entire structure. A rolling cylinder 102 is rotatably connected inside the frame 101 to support the conveyor belt above and provide running support. A convex ring 103 is slidably connected at the center of the outer wall of the rolling cylinder 102. The convex ring 103 is made of wear-resistant material and has good sliding performance and load-bearing capacity. It is worth noting that the conveyor belt is laid on the roller 102 and the convex ring 103, and the material is placed on the surface of the conveyor belt. Therefore, the roller 102 and the convex ring 103 together form a support layer for the conveyor belt and the material. The convex ring 103 has a larger diameter in the middle of the roller 102, so that the conveyor belt mainly bears the force in the convex ring 103 part during transportation, and gradually decreases towards both sides. When the conveyor belt deviates due to uneven tension or other factors, the tension on the deviated side will decrease accordingly because the conveyor belt itself has a certain degree of tensile strength, while the other side will bear a greater supporting force and guiding force due to the gradually increasing diameter of the convex ring 103, thereby generating a reverse restoring torque, which causes the conveyor belt to automatically return to its original position.

[0027] A balance bar 201 is installed in the center of the outer wall of the frame 101, positioned below the central area of ​​the conveyor belt. A sliding bar 204 is slidably connected inside the fixed bar 203. A support plate 205 is fixedly connected to the lower end of the sliding bar 204, located below the edge of the conveyor belt, and is used to sense whether the center of gravity of the material has shifted. When the material shifts to one side, it presses down on the support plate 205 on the corresponding side, causing the sliding bar 204 to move downwards. A toothed plate 305 is fixedly connected to the lower end of the sliding bar 204, and the tooth grooves of the toothed plate 305 mesh with a spur gear 304 for transmission. A rotating shaft 303 is fixedly connected to the side of the spur gear 304 away from the toothed plate 305, and a one-way bearing 302 and a threaded rod 301 are sequentially connected to the other end of the rotating shaft 303. Among them, the design of the one-way bearing 302 is crucial: it allows the spur gear 304 to drive the threaded rod 301 to rotate in the forward direction through the shaft 303, but prohibits the threaded rod 301 from rotating and driving the shaft 303 to rotate. That is, the threaded rod 301 will only be driven to rotate when the gear plate 305 is subjected to pressure and pushes the spur gear 304 to rotate.

[0028] Furthermore, a telescopic spring 306 is provided between the pallet 205 and the sliding rod 204, with both ends of the spring 306 fixed to the pallet 205 and the sliding rod 204 respectively. When the material's center of gravity returns to normal, the pressure on the pallet 205 disappears, and the telescopic spring 306 pushes the pallet 205 and the sliding rod 204 upward to reset. At this time, the toothed plate 305 drives the balance bar 201 to reset synchronously, so that the entire system returns to its initial equilibrium state. A balance plate 202 is rotatably connected to the upper end of the balance bar 201. It is located above the central area of ​​the conveyor belt and moves closer to the direction of the material's center of gravity offset as the balance bar 201 moves, playing an auxiliary support and guiding role, helping the material return to the central area of ​​the roller, and preventing the belt from running off-center due to uneven force.

[0029] Please refer to Figures 1 to 4 A round rod 401 is fixedly connected to the inner side of the frame 101. This round rod 401 serves as a guide and support structure for the cleaning component. A clamping plate 404 is slidably connected to its outer wall to drive the cleaning scraper 403 to achieve lateral displacement. The cleaning scraper 403 is fixedly connected to one side of the clamping plate 404. The cleaning scraper 403 is made of a material with certain elasticity and wear resistance. Its inner wall is slidably connected to the outer wall of the roller 102. As the clamping plate 404 moves, it can closely adhere to the surface of the roller to remove dust, debris, and other impurities attached to the roller, preventing the accumulation of foreign objects from affecting the normal operation of the roller and thus causing unstable operation of the conveyor belt.

[0030] To achieve coordinated control of the cleaning function and anti-deviation adjustment, a push plate 405 is fixedly connected to the side of the balance bar 201 near the rolling cylinder 102. The push plate 405 is positioned opposite to the clamping plate 404 and is connected between the two by a return spring 402. The two ends of the return spring 402 are fixedly connected to the push plate 405 and the clamping plate 404 respectively, providing a rebound force for the cleaning scraper 403.

[0031] When the material's center of gravity shifts, the pallet 205 is pressed down, driving the threaded rod 301 to rotate via the toothed plate 305 and the spur gear 304, thereby pushing the balance bar 201 to slide in the direction of the shift. At the same time, the push plate 405 on the balance bar 201 moves synchronously and pushes the clamping plate 404 to slide along the round rod 401, thereby driving the cleaning scraper 403 to scrape and clean close to the outer wall of the rolling drum 102.

[0032] The balance bar 201 returns to its original position, and the push plate 405 also resets accordingly. At this time, the return spring 402 releases its elastic force, causing the clamping plate 404 to drive the cleaning scraper 403 to slide in the opposite direction along the round rod 401, returning to the initial position and completing one cleaning action.

[0033] In summary, the working principle of a conveyor belt roller anti-deviation structure according to an embodiment of this utility model is as follows:

[0034] When the conveyor belt is running normally, the material is laid on the surface of the conveyor belt and supported by the roller 102 and the centrally slidably connected convex ring 103. The convex ring 103 is made of wear-resistant material and is located in the middle of the conveyor belt to support the center of gravity of the material. The convex ring 103 has a larger diameter in the middle of the roller 102, so that the conveyor belt mainly bears the force at the convex ring 103 part during transportation, and gradually decreases towards both sides. When the conveyor belt deviates due to uneven tension or other factors, the tension on the deviated side will decrease accordingly because the conveyor belt itself has a certain degree of tensile strength, while the other side will bear a greater supporting force and guiding force due to the gradually increasing diameter of the convex ring 103, thereby generating a reverse restoring torque, which causes the conveyor belt to automatically return to its original position.

[0035] When the material shifts to one side, the corresponding support plate 205 is pressured downwards, causing the sliding rod 204 to move downwards as well, which in turn drives the toothed plate 305 fixed to it to move downwards. The toothed plate 305 meshes with the spur gear 304, causing the spur gear 304 to rotate, and the power is transmitted to the one-way bearing 302 and the threaded rod 301 through the rotating shaft 303. The rotation of the threaded rod 301 causes the balance bar 201 to slide along the frame 101, moving it in the direction of material shift. At the same time, it drives the balance plate 202, which is rotatably connected at the upper end, to move closer to the center of gravity of the material, providing auxiliary support and guidance, helping the material to return to the center area of ​​the drum, and achieving automatic correction. When the center of gravity of the material returns to normal, the pressure on the support plate 205 disappears, the telescopic spring 306 pushes the support plate 205 and the sliding rod 204 to return upwards, and the toothed plate 305 drives the balance bar 201 and the balance plate 202 to return to their original positions simultaneously, and the system returns to its initial balanced state. In addition, to improve the cleanliness of the drum's operating environment and extend its service life, when the material's center of gravity shifts, the support plate 205 located below the edge of the conveyor belt moves downward under pressure, causing the connected sliding rod 204 and toothed plate 305 to move downward simultaneously. The toothed plate 305 drives the spur gear 304 to rotate, which in turn drives the threaded rod 301 to rotate via the rotating shaft 303 and the one-way bearing 302. This pushes the balance bar 201 to slide along the frame 101 and move in the direction of material shift. At the same time, the push plate 405 fixed on the balance bar 201 moves accordingly, pushing the clamping plate 404 to slide along the round rod 401. The clamping plate 404 drives the cleaning scraper 403 to press against the outer wall of the drum 102 to scrape away surface impurities. When the material returns to the center position, the balance bar 201 returns to its original position, and the push plate 405 also resets. At this time, the return spring 402 releases its elasticity, pushing the clamping plate 404 to slide in the opposite direction along the round rod 401, causing the cleaning scraper 403 to return to its initial position, completing one cleaning operation.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A conveyor belt roller anti-deviation structure, comprising a frame (101), characterized in that: A rolling cylinder (102) is rotatably connected to the inner wall of the frame (101), and a convex ring (103) is slidably connected to the center of the outer wall of the rolling cylinder (102). The convex ring (103) is used to support the center of gravity of the transported material. A balance bar (201) is slidably connected to the outer wall of the frame (101), and a balance plate (202) is rotatably connected to the upper end of the balance bar (201). The balance plate (202) is used to assist the convex ring (103) in supporting the center of gravity of the transported material.

2. The conveyor belt roller anti-deviation structure according to claim 1, characterized in that: The frame (101) has fixed rods (203) at both ends of its outer wall. The fixed rods (203) are symmetrical about each other with the balance rod (201) as the center.

3. The conveyor belt roller anti-deviation structure according to claim 2, characterized in that: The end of the balance bar (201) away from the balance plate (202) is threadedly connected to a threaded rod (301), which is used for helical transmission to drive the balance bar (201) to slide on the outer wall of the frame (101).

4. The conveyor belt roller anti-deviation structure according to claim 3, characterized in that: A sliding rod (204) is slidably connected to the inner wall of the fixed rod (203). One end of the sliding rod (204) passes through the upper end of the fixed rod (203) and is fixedly connected to a support plate (205). The support plate (205) is used for auxiliary support when the center of the material shifts.

5. The conveyor belt roller anti-deviation structure according to claim 4, characterized in that: A toothed plate (305) is fixedly connected to one end of the sliding rod (204) away from the support plate (205). A spur gear (304) is meshed with the tooth groove of the toothed plate (305). A rotating shaft (303) is fixedly connected to the side of the spur gear (304) away from the toothed plate (305). A one-way bearing (302) is fixedly connected to the side of the rotating shaft (303) away from the spur gear (304). A threaded rod (301) is rotatably connected to the side of the one-way bearing (302) away from the rotating shaft (303). A telescopic spring (306) is fixedly connected to the opposite side of the support plate (205) and the sliding rod (204).

6. The conveyor belt roller anti-deviation structure according to claim 5, characterized in that: A round rod (401) is fixedly connected to the inner side of the frame (101), a clamping plate (404) is slidably connected to the outer wall of the round rod (401), a cleaning scraper (403) is fixedly connected to the side wall of the clamping plate (404), and the inner wall of the cleaning scraper (403) is slidably connected to the outer wall of the rolling cylinder (102).

7. The conveyor belt roller anti-deviation structure according to claim 6, characterized in that: A push plate (405) is fixedly connected to the side of the balance bar (201) near the rolling cylinder (102), and a return spring (402) is fixedly connected to the opposite side of the push plate (405) and the clamping plate (404).

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