Pipe belt anti-unwinding and twisting device

Abstract

The utility model relates to a tubular belt conveyor technology field especially discloses a kind of tubular belt anti-expansion and torsion device, it includes: roller bank, roller bank includes multiple rollers, multiple rollers are arranged as in vertical direction to pipe belt exert constraint force;Multiple arc-shaped steel skeleton, the radian of multiple arc-shaped steel skeleton is consistent with the curvature of the turning section of tubular belt, arc-shaped steel skeleton is used to install and fix roller;Roller bank fixing frame, roller bank fixing frame is fixedly connected with arc-shaped steel skeleton;Fixing piece, fixing piece is used to install and fix roller bank fixing frame on belt corridor.This scheme avoids the leakage loss and environmental pollution of material, reduces the labor intensity of cleaning material, prevents belt torsion and damage, greatly reduces equipment downtime and maintenance replacement cost, ensures the continuous stable operation of production line.

Description

Technical Field

[0001] This utility model relates to the field of tubular belt conveyor technology, and in particular to a device for preventing tubular belt from unfolding and twisting. Background Technology

[0002] Tubular belt conveyors rely on multiple sets of ring-arranged idlers to maintain the belt's tubular structure for sealed transport during material conveying. However, this type of conveyor has significant technical problems in horizontal turning sections: due to insufficient structural constraints and uneven stress, the belt often becomes loosely wrapped at turns, easily leading to partial unwinding or overall twisting. This causes the conveyed material to leak and spill through the gaps, resulting in material loss and environmental pollution, requiring machine shutdown for cleaning, and increasing the labor intensity of workers. More seriously, belt unwinding and twisting exacerbate belt wear and can even cause tearing, leading to equipment downtime or damage. Belt replacement and related maintenance are time-consuming, severely impacting the continuous operation of subsequent production lines and negatively affecting overall production efficiency and economic benefits.

[0003] Therefore, there is an urgent need to provide a device that can effectively ensure that the belt is tightly wrapped at bends and prevent it from unwinding and twisting. Utility Model Content

[0004] In existing tubular belt conveyors, insufficient structural constraints and uneven stress during material transport often lead to loose belt wrapping at bends, resulting in partial unwinding or overall twisting. This causes material leakage and spillage, negatively impacting overall production efficiency and economic benefits. This disclosure provides a device to prevent tubular belt unwinding and twisting, comprising: A roller assembly comprising a plurality of rollers arranged to apply a constraint force to a tubular belt in a vertical direction; Multiple arc-shaped steel frames, the curvature of which matches the curvature of the turning section of the tubular belt, are used to install and fix the idler roller. A roller assembly fixing frame is fixedly connected to the arc-shaped steel frame; A fastener is used to install and fix the idler assembly frame onto the belt conveyor.

[0005] In some embodiments, the number of idlers in the idler group is 6.

[0006] In some embodiments, the multiple idlers in the idler group are divided into at least three groups, and each group of idlers is arranged sequentially along the running direction of the tubular belt, together forming a continuous constraint on the tubular belt.

[0007] In some embodiments, the number of the plurality of arc-shaped steel frames is four, and they are arranged in pairs to fix different idler rollers.

[0008] In some embodiments, the arc-shaped steel frame is fixedly connected to the idler roller assembly fixing frame by welding.

[0009] In some embodiments, the fastener is a bolt.

[0010] In some embodiments, the plurality of idlers are arranged to symmetrically compress the tubular belt in the vertical direction.

[0011] In some embodiments, the tubular belt anti-spreading and anti-torsion device further includes a protective cover disposed on the outside of the idler group.

[0012] In some embodiments, the arc-shaped steel frame is provided with elongated holes, and the idler roller is connected to the elongated holes by bolts. The installation position of the idler roller in the elongated holes is adjustable.

[0013] In some embodiments, the inner surface of the arc-shaped steel frame is provided with a wear-resistant layer for increasing friction.

[0014] By adopting the above technical solution, this utility model has at least the following beneficial effects: The device for preventing the tubular belt from unwinding and twisting provided in this application, by setting up idler rollers and applying a constraint force to the tubular belt in the vertical direction, ensures that the belt maintains a tight, cylindrical wrapping shape at the turning section, fundamentally preventing local unwinding of the belt and leakage of materials from gaps. By employing multiple arc-shaped steel frames with their curvature precisely matching the curvature of the tubular belt's turning section, an installation base is provided for the idler rollers that perfectly matches the turning trajectory, ensuring the uniformity and continuity of the constraint force distribution. This effectively counteracts the uneven force that causes belt twisting, preventing abnormal wear and tearing caused by twisting. By setting up idler roller fixing frames and firmly connecting them to the arc-shaped steel frames, a rigid overall support unit is formed, greatly enhancing the structural stability and load-bearing capacity of the device and ensuring reliability under long-term operation. The entire device is securely installed on the belt conveyor using fasteners, ensuring its installation rigidity and positional accuracy under complex working conditions, providing a solid foundation for the coordinated function of the aforementioned components. The overall technical solution of this application not only avoids material leakage and environmental pollution, but also reduces the labor intensity of cleaning materials, prevents belt twisting and damage, significantly reduces equipment downtime and maintenance and replacement costs, ensures the continuous and stable operation of the production line, and creates significant economic and social benefits. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of a tubular belt anti-unwinding and anti-torsion device disclosed in some embodiments of the present invention; Figure 2 This is a vertical cross-sectional view of a tubular belt anti-unwinding and anti-torsion device disclosed in some embodiments of this utility model; Explanation of reference numerals in the attached figures: 1. Belt conveyor corridor; 2. Tubular belt; 3. Idler assembly; 4. Arc-shaped steel frame; 5. Idler assembly fixing frame; 6. Fixing component; 7. Running direction; 31. First idler; 32. Second idler; 33. Third idler; 34. Fourth idler; 35. Fifth idler; 36. Sixth idler; 41. First arc-shaped steel frame; 42. Second arc-shaped steel frame; 43. Third arc-shaped steel frame; 44. Fourth arc-shaped steel frame; 61. First bolt; 62. Second bolt; 100. Device for preventing tubular belt from unfolding and twisting. Detailed Implementation

[0017] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0018] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0019] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure 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 disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0021] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0022] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0023] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0024] Please refer to Figure 1-2 , Figure 1 This is a top view of the tubular belt anti-unwinding and anti-torsion device 100 disclosed in some embodiments of the present invention. Figure 2This is a vertical cross-sectional view of a tubular belt anti-unwinding and anti-torsion device 100 disclosed in some embodiments of the present invention. The tubular belt anti-unwinding and anti-torsion device 100 includes: an idler group 3, multiple arc-shaped steel frames 4, an idler group fixing frame 5, and fixing components. The idler group 3 includes multiple idlers arranged to apply a constraint force to the tubular belt 2 in the vertical direction to prevent the tubular belt 2 from unwinding. The arc of the multiple arc-shaped steel frames 4 is a key supporting structure of the tubular belt anti-unwinding and anti-torsion device 100. Its arc is precisely designed to match the curvature of the turning section of the tubular belt 2. The arc-shaped steel frames 4 are used to install and fix the idlers, ensuring a perfect fit between the idler mounting base and the belt running trajectory. Each arc-shaped steel frame 4 is used to install and reliably fix one or more idlers. The idler assembly fixing frame 5, as an integral rigid base, is fixedly connected to the arc-shaped steel frame 4, for example by welding, so that the multiple arc-shaped steel frames 4 are integrated into a stable whole; fasteners, such as high-strength bolts, are used to install and fix the idler assembly fixing frame 5 to the belt conveyor 1.

[0025] The aforementioned device 100 for preventing the tubular belt from unwinding and twisting, through the synergistic effect of the above structures, fundamentally overcomes the problem of unwinding and twisting of the tubular belt 2 at bends due to insufficient restraint. The vertical restraint force provided by the idler roller group 3 directly ensures the tight wrapping of the belt, eliminating material leakage at the source. The consistency between the arc-shaped steel frame 4 and the bending radius of the bend ensures the uniform distribution of restraint force along the bend arc, effectively counteracting the unbalanced forces that cause belt twisting. The idler roller group fixing frame 5 integrates each arc-shaped steel frame 4 into a rigid unit, greatly enhancing the stability and load-bearing capacity of the overall structure and ensuring long-term operational reliability. The fixing components ensure the stable and precise installation of the entire device 100 for preventing the tubular belt from unwinding and twisting. This device 100 for preventing the tubular belt from unwinding and twisting significantly reduces material leakage and damage to the tubular belt 2, lowers maintenance costs and labor intensity, and improves equipment operating rate.

[0026] According to several embodiments of the present invention, the number of idlers in the idler roller group 3 is 6. For example, these 6 idlers can be referred to... Figure 1 The markings on the chart indicate the number of idlers: first idler 31, second idler 32, third idler 33, fourth idler 34, fifth idler 35, and sixth idler 36. This configuration ensures sufficient and uniform constraint on the belt while avoiding overly complex structures, making it an optimized and resource-saving solution for effectively preventing unwinding and torsion.

[0027] According to several embodiments of this utility model, the multiple idlers in the idler group 3 are divided into at least three groups, and each group of idlers is arranged sequentially along the running direction 7 of the tubular belt 2, together forming a continuous constraint on the tubular belt 2. For example, please refer to... Figure 1 , Figure 1 The six idlers can be divided into three groups of two idlers each. Idler 31 and idler 32 form one group, idler 33 and idler 34 form another group, and idler 35 and idler 36 form the third group. They are arranged along... Figure 1 The tubular belt 2 shown is arranged in the direction of travel 7. This continuous arrangement of groups ensures that the restraining force covers the entire turning section of the belt, continuously suppressing the belt's tendency to unwind, thus ensuring the continuity and reliability of the protective effect.

[0028] According to several embodiments of this utility model, the number of multiple arc-shaped steel frames 4 is four, and they are arranged in pairs to fix different idler rollers. Please refer to... Figure 1 and Figure 2 The first arc-shaped steel frame 41 and the second arc-shaped steel frame 42 form a group, jointly fixing the first idler 31, the third idler 33, and the fifth idler 35. The third arc-shaped steel frame 43 and the fourth arc-shaped steel frame 44 form a group, jointly fixing the second idler 32, the fourth idler 34, and the sixth idler 36. This symmetrical design of two groups optimizes the stress distribution, enhances the structural rigidity, and makes the idler fixing more stable.

[0029] According to several embodiments of this utility model, the arc-shaped steel frame 4 and the idler roller assembly fixing frame 5 are fixedly connected by welding. Welding can achieve a high-strength, high-rigidity permanent connection, ensuring that there will be no relative displacement or loosening between the components under the vibration and impact generated by the operation of the belt conveyor, thereby maintaining the geometric accuracy and constraint effect of the device for a long time.

[0030] According to several embodiments of this utility model, the fixing element is a bolt. Specifically, it can be adopted... Figure 2 The high-strength bolt shown is... Figure 2 The first bolt 61 and the second bolt 62 are shown. The bolt connection method is standardized, easy to install and debug, reliable, and convenient for future maintenance and disassembly.

[0031] According to several embodiments of this utility model, multiple idlers are arranged to symmetrically compress the tubular belt 2 in the vertical direction. This indicates that the idlers are arranged symmetrically up and down and left and right around the center line of the belt, that is... Figure 1The symmetrical relationship between the first idler 31 and the second idler 32, the third idler 33 and the fourth idler 34, and the fifth idler 35 and the sixth idler 36 shown in the diagram applies a balanced compressive force to the belt. This symmetrical arrangement avoids belt misalignment or additional torsion caused by uneven force distribution, ensuring stable belt operation in the center position.

[0032] According to several embodiments of the present invention, the tubular belt anti-spreading and anti-torsion device 100 further includes a protective cover disposed on the outside of the idler roller group 3. It is understood that the protective cover is not shown in the figures, but is a common additional component in the art. The protective cover can prevent external dust, material particles, or foreign objects from entering the rotating parts of the idler roller, reducing idler roller wear and the risk of jamming, while also providing safety protection and extending the service life of the device.

[0033] According to several embodiments of this utility model, the arc-shaped steel frame 4 is provided with elongated holes, and the idler rollers are connected to the elongated holes by bolts, making their installation positions adjustable. Specifically, the first idler roller 31, the third idler roller 33, and the fifth idler roller 35 are respectively connected to the elongated holes of the first arc-shaped steel frame 41 and the second arc-shaped steel frame 42 by bolts, making their installation positions adjustable. The second idler roller 32, the fourth idler roller 34, and the sixth idler roller 36 are respectively connected to the elongated holes of the third arc-shaped steel frame 43 and the fourth arc-shaped steel frame 44 by bolts, making their installation positions adjustable. This adjustable design greatly enhances the applicability and long-term effectiveness of the device, effectively improving its flexibility and adjustability.

[0034] According to several embodiments of this utility model, the inner surface of the arc-shaped steel frame 4 is provided with a wear-resistant layer to increase friction. The inner surface of the arc-shaped steel frame 4 refers to the surface that may come into contact or rub against the belt. This wear-resistant layer can be a welded or sprayed wear-resistant alloy material layer or a special ceramic layer. When the belt comes into contact with the arc-shaped steel frame 4, this wear-resistant layer can effectively resist wear, protect the arc-shaped steel frame 4 body, and its high coefficient of friction helps to inhibit lateral slippage of the belt to a certain extent, thereby further enhancing the anti-torsion effect.

[0035] The aforementioned tubular belt anti-unwinding and anti-torsion device 100 not only avoids material leakage and environmental pollution, reduces the labor intensity of cleaning materials, prevents belt torsion and damage, significantly reduces equipment downtime and maintenance and replacement costs, ensures continuous and stable operation of the production line, and creates significant economic and social benefits.

[0036] To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0037] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A tubular belt anti-unwinding and anti-torsion device, characterized in that, include: A roller assembly comprising a plurality of rollers arranged to apply a constraint force to a tubular belt in a vertical direction; Multiple arc-shaped steel frames, the curvature of which matches the curvature of the turning section of the tubular belt, are used to install and fix the idler roller. A roller assembly fixing frame is fixedly connected to the arc-shaped steel frame; A fastener is used to install and fix the idler assembly frame onto the belt conveyor.

2. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The number of idlers in the idler group is 6.

3. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The idler rollers in the idler roller group are divided into at least three groups, and each group of idler rollers is arranged sequentially along the running direction of the tubular belt, together forming a continuous constraint on the tubular belt.

4. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The number of the plurality of arc-shaped steel frames is four, and they are arranged in pairs to fix different idler rollers.

5. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The arc-shaped steel frame is fixedly connected to the idler roller assembly fixing frame by welding.

6. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The fastener is a bolt.

7. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The plurality of idlers are arranged to symmetrically compress the tubular belt in the vertical direction.

8. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The tubular belt anti-spreading and anti-torsion device also includes a protective cover disposed on the outside of the idler group.

9. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The arc-shaped steel frame is provided with elongated holes, and the idler roller is connected to the elongated holes by bolts. The installation position of the idler roller in the elongated holes is adjustable.

10. The tubular belt anti-unwinding and anti-torsion device according to claim 1, characterized in that, The inner surface of the arc-shaped steel frame is provided with a wear-resistant layer to increase friction.

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