A guide bracket for assisting in the replacement of an overhead conveyor belt

Abstract

This utility model discloses a guide bracket for assisting in the replacement of high-level conveyor belts, belonging to the field of belt replacement technology. It includes two parallel support frames, a dragging section, and a combing section. The dragging section and combing section are fixed to both ends of the support frames, with the combing section located at the end of the support frames. The support frames are fixed to the factory floor by support rods. A receiving rod extending to the outside of the factory floor is provided at the front end of the support frames for directly connecting to the hoisted new belt. The dragging section is located inside the receiving rod and is driven by a motor to pull the belt. The dragging section is located inside the factory floor. Guide frames are symmetrically arranged on the support frames on the front side of the dragging section for guiding the belt. Through ground-fixed automated transmission and multi-stage guiding anti-deviation design, the high-risk and inefficient problems of high-level belt replacement are solved. It reduces the need for manual high-altitude operations, realizes mechanized ground traction and guidance of the belt, and improves replacement efficiency and ensures operational safety through optimization of the entire process of traction, buffering, and combing.

Description

Technical Field

[0001] This utility model belongs to the field of belt replacement technology, specifically relating to a guide bracket for assisting in the replacement of belts on high-level conveyors. Background Technology

[0002] Belt conveyors, with their outstanding advantages such as large conveying capacity, simple structure, convenient maintenance, and highly standardized components, have become core conveying equipment in heavy industries such as mining, metallurgy, and coal. They can efficiently transport loose materials (such as coal, gravel, sand, cement, and fertilizer) or packaged goods. Flexible combinations are possible according to process requirements; they can operate as standalone units, multiple units connected in series, or integrated with other conveying equipment into horizontal / inclined conveying systems to meet the layout requirements of complex production lines. Their applicable material range is clearly defined as powdery, granular, and small lump materials (such as grain and mineral powder) with a bulk density of less than 1.67 tons / cubic meter, low abrasiveness, and easy handling, or standard bagged goods. However, belts that have been in operation for a long time are prone to overall wear and thinning, and multi-directional surface cracks. If not replaced in time, this may lead to sudden breakage accidents, threatening the safe operation of the unit. In such cases, belt replacement is necessary.

[0003] In large industrial plants, belt conveyors are often installed at heights of 20-34 meters (such as in power plant coal conveying systems). When replacing aging belts, traditional methods have significant drawbacks. The working environment is complex; the coal conveyor belt is located 34 meters above the ground, surrounded by dense pipelines and limited space. New belts (typically 1.2 meters wide and 500 meters long) cannot be directly transported to the installation floor. A crane must be used to hoist the belt in sections to the corresponding floors, and then manually drag it to the frame position before pulling it into the plant. However, when moving heavy belts at heights and dragging them into the plant, personnel must pull them inwards from workbenches inside the plant. Furthermore, the conveyor belt's speed affects the speed at which subsequent conveying equipment can replace belts. This operation is not only time-consuming and labor-intensive but also quite difficult, and safety management is challenging due to the height. Taking the replacement of a 500-meter belt conveyor as an example, when encountering outdated or unsupported auxiliary equipment, the current method requires 10 workers to operate continuously for 12 hours. During this time, the entire conveyor line is shut down, directly affecting the continuity of the blast furnace feeding system. This means significant production losses for continuous production enterprises such as metallurgy and power. Therefore, it is necessary to install auxiliary devices at the corresponding height inside the plant, in conjunction with tower cranes, to connect the belt conveyor and facilitate the rapid replacement of the belt conveyor. Utility Model Content

[0004] To overcome the problems of high safety risks, low efficiency, and high cost in existing technologies when replacing belts, this utility model provides a guide bracket to assist in replacing belts of high-level conveyors, as detailed below:

[0005] A guide bracket for assisting in the replacement of a high-level conveyor belt includes two parallel support frames, a dragging part, and a combing part. The dragging part and the combing part are fixed to both ends of the support frames, with the combing part located at the end of the support frame. The support frames are fixed to the factory floor by support rods. The front end of the support frame is provided with a receiving rod extending to the outside of the factory for direct connection to the new belt being hoisted. The dragging part is located inside the receiving rod and is driven by a motor to pull the belt. The dragging part is located inside the factory. Guide frames are symmetrically provided on the support frames on the front side of the dragging part for guiding the belt.

[0006] Through the above technical solution, the receiving rod extends to the outside of the factory to directly connect with the new belt transported by the crane, avoiding segmented hoisting and manual high-altitude handling, eliminating the defects of traditional methods that cannot be directly transported to the installation layer. The combined design of the drag section and the comb section with the guide frame ensures that the belt moves in a directional manner in narrow high-altitude environments, preventing deviation and jamming, and dealing with space-constrained working environments. In addition, the support frame is fixed to the ground to provide a stable foundation, reducing the risks of high-altitude manual operations, and specifically solving the problem of high safety management difficulty.

[0007] Furthermore, the dragging part includes a drive motor, an active roller, and an adjustable pressure roller. The upper end of the support frame is symmetrically fixed with a fixing plate. The middle of each fixing plate is vertically opened with a limiting groove. Both ends of the pressure roller are installed in the limiting groove through adjustable clamping parts.

[0008] A fixed support member is fixedly provided on the bottom of the fixed plate on the side opposite to the adjustable support member. Both ends of the pressure roller are rotatably connected to the adjustable support member. One end of the drive roller is rotatably connected to the adjustable support member, and the other end is fixedly connected to the output end of the drive motor. A motor frame is provided at the bottom of the drive motor, and the motor frame is fixed to the factory floor. The drive motor is fixed to the upper surface of the motor frame.

[0009] Through the above technical solution, the first drive motor plus the active roller / pressure roller realizes automatic belt dragging, directly solving the pain points of traditional manual dragging which is time-consuming and labor-intensive, and reducing reliance on manpower. In addition, the first limiting groove plus the adjustable clamping component allows the first pressure roller to adapt to different belt thicknesses, preventing slippage or excessive compression, and avoiding changes in working conditions such as belt wear and thinning.

[0010] Furthermore, the guide frame includes a vertical connecting rod, a horizontal guide rod, a lifting rod, and a connecting base fixedly connected to the upper end face of the support frame. One end of the connecting rod is fixed to the support frame through the connecting base, and the other end is fixedly connected to the guide rod. Reinforcing rods are provided on both sides of the connecting rod. One end of the lifting rod is fixedly connected to the support frame, and the other end is fixedly connected to the guide rod. The lifting rod has a gradually increasing slope along the belt path.

[0011] Furthermore, a C-shaped guide frame is fixedly provided at the guide rod and the connecting rod. A blocking rod is fixedly provided on the inner side of the open end of the guide frame. The two ends of the blocking rod are perpendicularly connected to the guide frame. An extension plate extends outward from the side of the guide frame near the support frame. An auxiliary wheel is embedded in the middle of the extension plate. A rotating cylinder is sleeved on the outer side of the blocking rod. One end of the reinforcing rod is fixedly connected to the connecting base, and the other end is fixedly connected to the guide frame.

[0012] Furthermore, a buffer wheel is provided in the middle of the support frame, and the buffer wheel is fixed to the support frame through the buffer frame. A top support member is fixedly connected to the top of the buffer frame, and both ends of the buffer wheel are rotatably connected to the top support member.

[0013] Furthermore, the adjustable clamping member, the fixed clamping member, and the top clamping member are all U-shaped fixing grooves. The two opposite connecting plates of the U-shaped fixing groove are provided with U-shaped clamping grooves in the same direction as the opening of the fixing groove. A blocking plate is provided in the U-shaped clamping groove, and the interior of the U-shaped clamping groove and the blocking plate form a non-closed confinement ring. The connecting ends of the drive roller and the pressure roller are both placed in the confinement ring.

[0014] Furthermore, each of the drive motors is connected to a controller, which adjusts the synchronous speed of the two drive motors, and the controller is electrically connected to the drive motor.

[0015] Furthermore, a plurality of stabilizing rods are provided between the two support frames, and both ends of the stabilizing rods are fixedly connected to the support frames.

[0016] Furthermore, both ends of the receiving rod are fixedly connected to the inner side of the support frame, and a rotating cylinder is sleeved on the outer side of the receiving rod.

[0017] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0018] (1) This utility model achieves continuous traction force by cooperating with the support frame, the dragging part and the combing part. The support frame is fixed to the ground inside the factory building by the support rod. The front receiving rod extends to the outside through the factory building conveyor window. The motor drives the double rollers to provide continuous traction force, replacing manual dragging and solving the problem of difficult movement of heavy belts. The overall bracket realizes the continuous automated transmission of the belt from the outside to the frame. The compact design adapts to the dense pipeline space. The reinforced structure has high load-bearing stability.

[0019] (2) The guide groove and auxiliary wheel ensure that the belt always moves along the predetermined path to prevent deviation and jamming; the raised design reduces the friction between the belt and the bracket and improves the smoothness of dragging. The dual roller drive combined with the buffer wheel forms a three-stage sorting mechanism, which performs traction, buffering and correction in sequence to avoid belt folding and twisting. The two pressure rollers and the active roller can be adapted to belts of different thicknesses, which can prevent overpressure damage and extend the life of new belts. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a front view of a guide bracket for assisting in the replacement of belts on a high-level conveyor, according to this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of a guide bracket for assisting in the replacement of belts on a high-level conveyor, according to this utility model.

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of a guide bracket support component that assists in replacing the belt of a high-level conveyor.

[0025] The components are as follows: 1. Support frame; 2. Dragging part; 3. Combing part; 4. Receiving rod; 5. Guide frame; 6. First active roller; 7. First pressure roller; 8. First drive motor; 9. First fixing plate; 10. First limiting groove; 11. First adjustable support member; 12. First fixed support member; 13. First motor frame; 14. Second active roller; 15. Second pressure roller; 16. Second drive motor; 17. Second fixing plate; 18. Second limiting groove; 19. Second adjustable support member; 20. Second fixed support member; 21. Second motor frame; 22. Connecting rod; 23. Guide rod; 24. Lifting rod; 25. Connecting base; 26. Reinforcing rod; 27. Guide frame; 28. Blocking rod; 29. ​​Auxiliary wheel; 30. Buffer wheel; 31. Buffer frame; 32. Top support member. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] This implementation method utilizes a ground-fixed automated transmission system with a multi-stage guiding and anti-deviation design to systematically solve the high-risk, inefficient, and high-cost problems associated with high-level conveyor belt replacement. It significantly reduces manual labor at height, enabling mechanized ground-based traction and guidance of the conveyor belt. Furthermore, through optimization of the entire process—traction, buffering, and sorting—it significantly improves replacement efficiency and ensures operational safety. The specific implementation method is as follows:

[0028] Reference Figures 1-4 As shown, a guide bracket for assisting in the replacement of a high-level conveyor belt includes two parallel support frames 1, a dragging part 2, and a combing part 3. The dragging part 2 and the combing part 3 are fixed to both ends of the support frame 1, and the combing part 3 is located at the end of the support frame 1. The support frame 1 is fixed to the factory floor by a support rod. The front end of the support frame 1 is provided with a receiving rod 4 extending to the outside of the factory for direct connection to the new belt being hoisted. The dragging part 2 is located inside the receiving rod 4 and is driven by a motor to pull the belt. The dragging part 2 is located inside the factory. The front side of the dragging part 2 is symmetrically provided with guide frames 5 on the support frame 1 for guiding the belt.

[0029] Here, the receiving rod 4 extends outside the factory to directly connect with the new belt transported by the crane, avoiding segmented hoisting and manual high-altitude handling, eliminating the defects of traditional methods that cannot directly transport to the installation layer. The combined design of the drag section 2 and the combing section 3 with the guide frame 5 ensures that the belt moves in a directional manner in a narrow high-altitude environment, preventing deviation and jamming, and dealing with space-constrained working environments. In addition, the support frame 1 is fixed to the ground to provide a stable foundation, reducing the risk of high-altitude manual operations and specifically solving the problem of high safety management difficulty.

[0030] In a preferred embodiment, the dragging part 2 includes a first drive motor 8, a first active roller 6, and an adjustable first pressure roller 7. A first fixing plate 9 is symmetrically fixed on the upper end of the support frame 1. A first limiting groove 10 is vertically opened in the middle of the first fixing plate 9. The two ends of the pressure roller are installed in the first limiting groove 10 through the first adjustable support member 11. A first fixing support member 12 is fixed on the side of the middle of the first fixing plate 9 opposite to the first adjustable support member 11. The two ends of the first pressure roller 7 are rotatably connected to the first fixing support member 12. One end of the first active roller 6 is rotatably connected to the first adjustable support member 11, and the other end is fixedly connected to the output end of the first drive motor 8. A first motor frame 13 is provided at the bottom of the first drive motor 8 and the first motor frame 13 is fixed to the factory floor. The first drive motor 8 is fixed to the upper end of the first motor frame 13.

[0031] Here, the first drive motor 8, combined with the first active roller 6 and the first pressure roller 7, realizes automatic belt dragging, directly solving the pain points of traditional manual dragging which is time-consuming and labor-intensive, and reducing reliance on manpower. In addition, the first limiting groove 10 with the adjustable support component 32 allows the first pressure roller 7 to adapt to different belt thicknesses, preventing slippage or excessive compression and avoiding changes in working conditions such as belt wear and thinning.

[0032] In a preferred embodiment, each combing unit 3 includes a second drive motor 16, a second active roller 14, and an adjustable second pressure roller 15. A second fixing plate 17 is symmetrically fixed on the upper end of the support frame 1. A second limiting groove 18 is vertically opened in the middle of each second fixing plate 17. The two ends of the pressure roller are installed in the second limiting groove 18 through the second adjustable support member 19. A second fixing support member 20 is fixed on the side of the bottom of the second fixing plate 17 opposite to the second adjustable support member 19. The two ends of the second pressure roller 15 are rotatably connected to the second adjustable support member 19. One end of the second active roller 12 is rotatably connected to the second adjustable support member 19, and the other end is fixedly connected to the output end of the second drive motor 21. A second motor frame 21 is provided at the bottom of the second drive motor 16, and the second motor frame 21 is fixed to the factory floor. The second drive motor 21 is fixed to the upper end of the second motor frame 21.

[0033] Here, the dual motor drive of the drag section 2 and the combing section 3 forms a relay traction, which avoids belt tearing caused by excessive force at a single point, and is especially suitable for replacing long belts; the second limiting groove 18 works with the adjustable second pressure roller 15 to keep the belt tension consistent.

[0034] In a preferred embodiment, the guide frame 5 includes a vertical connecting rod 22, a horizontal guide rod 23, a lifting rod 24, and a connecting base 25 fixedly connected to the upper end face of the support frame 1. One end of the connecting rod 22 is fixed to the support frame 1 through the connecting base 25, and the other end is fixedly connected to the guide rod 23. Reinforcing rods 26 are provided on both sides of the connecting rod 22. One end of the lifting rod 24 is fixedly connected to the support frame 1, and the other end is fixedly connected to the guide rod 23. The lifting rod 24 has a gradually increasing slope along the belt path.

[0035] In a preferred embodiment, a C-shaped guide frame 27 is fixedly provided at the guide rod 23 and the connecting rod 22. A blocking rod 28 is fixedly provided on the inner side of the open end of the guide frame 27. The two ends of the blocking rod 28 are perpendicularly connected to the guide frame 27. An extension plate extends outward from the side of the guide frame 27 near the support frame 1. An auxiliary wheel 29 is embedded in the middle of the extension plate. A rotating cylinder is sleeved on the outer side of the blocking rod 28. One end of the reinforcing rod 26 is fixedly connected to the connecting base 25, and the other end is fixedly connected to the guide frame 27.

[0036] Here, the gradually increasing slope of the lifting rod 24 guides the belt smoothly into the guide groove, preventing edge curling; the C-shaped frame and guide rod 23 constrain the lateral displacement of the belt, solving the problem of high-altitude towing difficulties; in addition, the auxiliary wheel 29 and rotating cylinder convert sliding friction into rolling friction, reducing drag resistance and meeting the long-distance movement requirements of heavy belts.

[0037] In a preferred embodiment, a buffer wheel 30 is provided in the middle of the support frame 1. The buffer wheel 30 is fixed to the support frame 1 by a buffer frame 31. A top support member 32 is fixedly connected to the top of the buffer frame 31. Both ends of the buffer wheel 30 are rotatably connected to the top support member 32.

[0038] Here, the buffer pulley 30 absorbs the energy of the belt's instantaneous vibration, preventing belt layer peeling during sudden stops or starts and reducing the risk of sudden breakage.

[0039] In a preferred embodiment, the first adjustable support member 11, the second adjustable support member 19, the first fixed support member 12, the second fixed support member 20, and the top support member 32 are all U-shaped fixed grooves. The two opposite connecting plates of the U-shaped fixed grooves are provided with U-shaped clamping grooves in the same direction as the opening of the fixed groove. A baffle plate is provided in the U-shaped clamping groove, and the interior of the U-shaped clamping groove and the baffle plate form an open confinement ring. The connecting ends of the first active roller 6, the second active roller 14, the first pressure roller 7, and the second pressure roller 15 are all placed inside the confinement ring.

[0040] Here, the U-shaped clamping groove and the baffle plate form a retaining ring that fits the roller end. It is suitable for different roller diameters. If you change to a different type of belt, the retaining ring design can prevent the roller from coming off and ensure the safety of high-altitude operations.

[0041] In a preferred embodiment, both the first drive motor 8 and the second drive motor 16 are connected to a controller. The controller adjusts the synchronous speed of the first drive motor 8 and the second drive motor 16, and the controller is electrically connected to the first drive motor 8 and the second drive motor 16.

[0042] In a preferred embodiment, a plurality of stabilizing rods are provided between the two support frames 1, and both ends of the stabilizing rods are fixedly connected to the support frame 1.

[0043] In a preferred embodiment, the two ends of the receiving rod 4 are fixedly connected to the inner side of the support frame 1, and a rotating cylinder is sleeved on the outer side of the receiving rod 4.

[0044] Here, stabilizing bars are provided between the support frames 1 to enhance the rigidity of the support and resist high-altitude wind loads or belt sway. The rotating cylinder of the receiving rod 4 further reduces the friction between the belt and the rod, improves the crane's feeding efficiency, and avoids surface damage caused by manual dragging.

[0045] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A guide bracket for assisting in the replacement of belts on a high-level conveyor, characterized in that, It includes two parallel support frames (1), a dragging part (2) and a combing part (3). The dragging part (2) and the combing part (3) are fixed at both ends of the support frame (1), and the combing part (3) is located at the end of the support frame (1). The support frame (1) is fixed to the factory floor by a support rod. The front end of the support frame (1) is provided with a receiving rod (4) extending to the outside of the factory for direct connection of the new belt being hoisted. The dragging part (2) is located inside the receiving rod (4) and drives the belt by a motor. The dragging part (2) is located inside the factory. The front side of the dragging part (2) is symmetrically provided with guide frames (5) on the support frame (1) for guiding the belt.

2. The guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 1, characterized in that, The dragging part (2) includes a drive motor, an active roller and an adjustable pressure roller. The upper end of the support frame (1) is symmetrically fixed with a fixing plate. The middle of the fixing plate is vertically opened with a limit groove. The two ends of the pressure roller are installed in the limit groove through adjustable clamping parts. A fixed support member is fixedly provided on the bottom of the fixed plate on the side opposite to the adjustable support member. Both ends of the pressure roller are rotatably connected to the adjustable support member. One end of the drive roller is rotatably connected to the adjustable support member, and the other end is fixedly connected to the output end of the drive motor. A motor frame is provided at the bottom of the drive motor, and the motor frame is fixed to the factory floor. The drive motor is fixed to the upper surface of the motor frame.

3. The guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 1, characterized in that, The guide frame (5) includes a vertical connecting rod (22), a horizontal guide rod (23), a lifting rod (24), and a connecting base (25) fixedly connected to the upper end face of the support frame (1). One end of the connecting rod (22) is fixed to the support frame (1) through the connecting base (25), and the other end is fixedly connected to the guide rod (23). Reinforcing rods (26) are provided on both sides of the connecting rod (22). One end of the lifting rod (24) is fixedly connected to the support frame (1), and the other end is fixedly connected to the guide rod (23). The lifting rod (24) has a gradually increasing slope along the belt path.

4. A guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 3, characterized in that, A C-shaped guide frame (27) is fixedly provided at the guide rod (23) and the connecting rod (22). A blocking rod (28) is fixedly provided on the inner side of the opening end of the guide frame (27). The two ends of the blocking rod (28) are perpendicularly connected to the guide frame (27). An extension plate extends outward from the side of the guide frame (27) near the support frame (1). An auxiliary wheel (29) is embedded in the middle of the extension plate. A rotating cylinder is sleeved on the outer side of the blocking rod (28). One end of the reinforcing rod (26) is fixedly connected to the connecting base (25), and the other end is fixedly connected to the guide frame (27).

5. A guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 1, characterized in that, A buffer wheel (30) is provided in the middle of the support frame (1). The buffer wheel (30) is fixed to the support frame (1) by a buffer frame (31). A top support member (32) is fixedly connected to the top of the buffer frame (31). Both ends of the buffer wheel (30) are rotatably connected to the top support member (32).

6. A guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 2, characterized in that, The adjustable clamping member, the fixed clamping member, and the top clamping member (32) are all U-shaped fixed grooves. The two opposite connecting plates of the U-shaped fixed groove are provided with U-shaped clamping grooves in the same direction as the opening of the fixed groove. A blocking plate is provided in the U-shaped clamping groove, and the interior of the U-shaped clamping groove and the blocking plate form a non-closed confinement ring. The connecting ends of the drive roller and the pressure roller are both placed in the confinement ring.

7. A guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 2, characterized in that, Each drive motor is connected to a controller, which adjusts the synchronous speed of the two drive motors, and the controller is electrically connected to the drive motor.

8. A guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 1, characterized in that, Several stabilizing rods are provided between the two support frames (1), and both ends of the stabilizing rods are fixedly connected to the support frame (1).

9. A guide bracket for assisting in the replacement of a high-level conveyor belt according to claim 1, characterized in that, The two ends of the receiving rod (4) are fixedly connected to the inner side of the support frame (1), and a rotating cylinder is sleeved on the outer side of the receiving rod (4).

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