Pipe belt machine anti-overlap device

Abstract

This invention provides an anti-overlapping device for a conveyor belt system. The device is installed on the frame of the conveyor belt's unfolding section, and a conveyor belt is mounted on the frame. It includes a detection component and a limiting component arranged sequentially along the conveyor belt's conveying direction. The detection component includes detectors fixed to both sides of the frame's width. The limiting component includes two horizontally rotatably mounted pressure rollers and two vertically rotatably mounted deflector rollers on the frame. The two deflector rollers and two pressure rollers are located on both sides of the conveyor belt's width. The two deflector rollers abut against both sides of the conveyor belt, and the two pressure rollers press against the top of the conveyor belt. A preset gap is provided between each deflector roller and pressure roller. This invention monitors the conveyor belt's running status in real time through the detection component. Once a deviation is detected, the limiting component immediately activates, using the synergistic effect of the deflector rollers and pressure rollers to limit belt deviation, prevent overlapping, and ensure the normal operation of the conveyor belt system.

Description

Technical Field

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

[0002] With the continuous improvement of industrial automation, tubular belt conveyors, as indispensable conveying equipment in modern industrial production, are widely used in mining, ports, chemical and other industries. Their stable and efficient operation is crucial for ensuring production processes. A tubular belt conveyor consists of a receiving section, a forming section, and a unfolding section. After receiving material in the receiving section, the belt gradually transitions from a flat shape to a trough shape and then a deep trough shape before entering the forming section. In the forming section, the belt is forcibly wrapped into a circular tube by hexagonally arranged rollers, and the conveyed material is completely enclosed within the circular tube and travels with the belt. In the unfolding section, the belt unfolds again from a circular tube into a flat belt to complete the feeding process. However, in actual use, belt overlap occurs frequently in tubular belt conveyors, which not only affects production efficiency but may also lead to safety accidents.

[0003] In the prior art, some hydraulic belt alignment devices are used to adjust the belt alignment. For example, patent number: CN203486508U, patent name: A fully automatic hydraulic belt alignment device without power source, is used to adjust the belt alignment. However, when the belt is severely curled, the detection wheel of the hydraulic belt alignment device may not be able to contact the belt, resulting in the hydraulic belt alignment device being unable to correct the belt. Utility Model Content

[0004] The main purpose of this utility model is to provide a device to prevent belt overlap in conveyor belt machines, so as to solve the problem that belt overlap in conveyor belt machines affects production efficiency and may also cause safety accidents in the prior art.

[0005] To solve the above problems, this utility model adopts the following technical solution: a belt-stacking prevention device for a conveyor belt machine, which is installed on the frame of the unfolding section of the conveyor belt machine. The frame is equipped with a belt and includes a detection component and a limiting component arranged sequentially along the conveying direction of the conveyor belt machine. The detection component includes detectors fixed on both sides of the width direction of the frame. The limiting component includes two pressure rollers horizontally and rotatably mounted on the frame and two deflector rollers vertically and rotatably mounted on the frame. The two deflector rollers and the two pressure rollers are respectively located on both sides of the width direction of the belt. The two deflector rollers abut against both sides of the belt, and the two pressure rollers press against the top of the belt. A preset gap is provided between each deflector roller and the pressure roller.

[0006] Furthermore, the pressure roller is located on the side of the belt deflector roller closer to the detection component.

[0007] Furthermore, there are multiple limiting components, which are arranged at intervals along the conveying direction of the conveyor belt.

[0008] Furthermore, multiple connecting plates are fixed on both sides of the frame in the width direction, and each of the belt deflector rollers and each of the belt pressing rollers are rotatably connected to the corresponding connecting plate.

[0009] Furthermore, the detector is a two-stage deviation switch.

[0010] Furthermore, it also includes a first hydraulic alignment device, wherein the two drive wheels of the first hydraulic alignment device are respectively disposed on both sides of the belt width direction and located within a preset gap of one of the limiting components.

[0011] Furthermore, it also includes a second hydraulic alignment device, wherein the two drive wheels of the second hydraulic alignment device are respectively disposed on both sides of the belt width direction and located between the two limiting components.

[0012] The beneficial effects of this utility model are:

[0013] 1. The belt running status is monitored in real time by the detection component. Once the belt deviation trend is detected, the limit component immediately takes effect. By using the synergistic action of the belt deflector and the belt pressure roller, the belt deviation is limited, the belt overlap phenomenon is prevented, and the normal operation of the tube belt conveyor is guaranteed.

[0014] 2. A reasonable preset gap setting can not only ensure the normal operation of the belt, but also effectively prevent the shear effect and extend the service life of the belt.

[0015] 3. Multiple limit components are arranged at intervals along the conveyor belt direction, which can limit and adjust the belt in all directions and at multiple stages, reducing equipment downtime caused by belt deviation and overlap, and improving the operating efficiency of the conveyor belt. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a three-dimensional structural diagram of the anti-overlapping device for a conveyor belt machine according to the present invention;

[0018] Figure 2 This is a top view of the anti-overlapping device for conveyor belt machines according to this utility model;

[0019] Figure 3 for Figure 2 AA view;

[0020] Figure 4 for Figure 2 BB view.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Frame; 11. Belt; 12. Connecting plate; 2. Detector; 3. Pressure roller; 4. Baffle roller; 5. Preset gap; 6. Inspection drive wheel. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Please see Figures 1 to 4 As shown, an anti-overlapping device for a conveyor belt machine is installed on the frame 1 of the conveyor belt machine's unfolding section. It should be noted that because the conveyor belt is cylindrical and smooth during operation in the forming section, detecting deviation and torsional deviation is very difficult. Therefore, the anti-overlapping device is installed in the unfolding section. The conveyor belt machine includes a frame 1 and a belt 11 mounted on the frame 1. The frame 1 is existing technology and is used to support the belt 11 and the material on the belt 11; it will not be described in detail here.

[0025] In this embodiment, the anti-overlapping device for the conveyor belt includes a detection component and a limiting component, which are arranged sequentially along the conveying direction of the conveyor belt. The detection component includes detectors 2 fixed on both sides of the frame 1 in the width direction, used to detect whether the belt 11 is misaligned. Specifically, detector 2 is a two-stage misalignment switch in the prior art, model PK-20 / 35 AC380V. The output end of detector 2 extends obliquely towards the belt 11 and abuts against the belt 11. The specific detection principle can be found in the two-stage misalignment switch in patent number CN218641699U, and will not be elaborated here. In implementation, detector 2 is electrically connected to the distributed control system (DCS) and can monitor the operating status of the belt 11 in real time. When the belt 11 shows slight misalignment, a warning signal can be issued. When the misalignment worsens, a protection mechanism can be triggered in time to prevent the belt 11 from further misaligning and causing overlapping.

[0026] The limiting assembly includes two horizontally and rotatably mounted pressure rollers 3 on the frame 1 and two vertically and rotatably mounted deflector rollers 4 on the frame 1. The two deflector rollers 4 and the two pressure rollers 3 are located on both sides of the belt 11 in the width direction. Specifically, multiple connecting plates 12 are fixed on both sides of the frame 1 in the width direction, and each deflector roller 4 and each pressure roller 3 is rotatably connected to the corresponding connecting plate 12. The two deflector rollers 4 abut against both sides of the belt 11 to limit the belt 11 and prevent it from deviating excessively in the width direction. The two pressure rollers 3 press down on the belt 11 to apply a certain pressure to keep it running smoothly.

[0027] Specifically, the pressure roller 3 is located on the side of the guide roller 4 closer to the detection component to facilitate the limiting of the belt 11, restricting its operation within a fixed area and preventing belt overlap. A preset gap 5 is provided between each guide roller 4 and the pressure roller 3. In this embodiment, the preset gap is 15 to 30 cm. This gap setting ensures the normal operation of the belt 11 while effectively preventing the scissor effect.

[0028] Preferably, there are multiple limiting components, which are arranged at intervals along the conveying direction of the belt conveyor. This allows for comprehensive and multi-stage limiting and adjustment of the belt 11, improving the anti-overlapping effect.

[0029] A hydraulic alignment device (not shown in the figure) is installed at one end of the frame 1 near the detection component. This hydraulic alignment device is existing technology and widely used in this field. It includes self-aligning rollers, valve blocks, detection drive wheel 6, and alignment cylinders. For details, please refer to patent number CN203486508U, patent title: A Fully Automatic Hydraulic Alignment Device Without a Power Source. Further details will not be provided here. It should be noted that due to the characteristics of the conveyor belt system, once deviation occurs, the winding will be particularly severe. In this case, the detection drive wheel 6 of the hydraulic alignment device may not be able to reach the belt 11, thus failing to perform its alignment function. Therefore, the inventor has optimized and adjusted the position of the hydraulic alignment device.

[0030] Specifically, in this embodiment, a first hydraulic belt alignment device and a second hydraulic belt alignment device are provided. The two detection wheels 6 of the first hydraulic belt alignment device are respectively located on both sides of the belt width direction and within a preset gap of one of the limiting components. That is, the detection wheels 6 are located between the belt guide roller 4 and the belt pressure roller 3. In actual use, the belt 11 is limited by the belt guide roller 4 and the belt pressure roller 3, thereby ensuring that the detection wheels 6 of the first hydraulic belt alignment device can contact the belt 11. Preferably, the two detection wheels 6 of the second hydraulic belt alignment device are respectively located on both sides of the belt width direction and between the two limiting components. In implementation, when the belt curls, the belt is limited by the two limiting components, which also ensures that the two detection wheels 6 of the second hydraulic belt alignment device contact the belt. This further improves the correction of belt misalignment.

[0031] In a specific implementation of this invention, the detection component monitors the running status of the belt 11 in real time. The belt guide roller 4 and belt pressure roller 3 of the limiting component limit the belt 11 on both sides and above, respectively, ensuring that the belt 11 runs within the specified width and height range. When the belt 11 shows a tendency to deviate for some reason, the two-stage deviation switch near the deviation side first detects the deviation signal and issues a warning. At this time, the belt guide roller 4 and belt pressure roller 3 of the limiting component play a role in preventing the belt 11 from deviating and overlapping. At the same time, the belt drive detection wheel 6 rotates to adjust the running direction of the belt 11 through the hydraulic deviation adjuster, so that the belt 11 gradually returns to the normal position.

[0032] The above description is only a preferred embodiment of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A device for preventing belt overlap on a conveyor belt machine, disposed on a frame (1) of the unfolding section of the conveyor belt machine, wherein a belt (11) is provided on the frame (1), characterized in that, The device includes a detection assembly and a limiting assembly arranged sequentially along the conveying direction of the belt conveyor. The detection assembly includes detectors (2) fixed on both sides of the width direction of the frame (1). The limiting assembly includes two pressure rollers (3) horizontally and rotatably mounted on the frame (1) and two deflector rollers (4) vertically and rotatably mounted on the frame (1). The two deflector rollers (4) and the two pressure rollers (3) are located on both sides of the width direction of the belt (11). The two deflector rollers (4) abut against both sides of the belt (11). The two pressure rollers (3) press against the top of the belt (11). A preset gap (5) is provided between each deflector roller (4) and the pressure roller (3).

2. The anti-overlapping device for a conveyor belt machine according to claim 1, characterized in that, The pressure roller (3) is located on the side of the belt deflector roller (4) closer to the detection component.

3. The anti-overlapping device for conveyor belt machines according to claim 1, characterized in that, The limiting components are multiple, and the multiple limiting components are arranged at intervals along the conveying direction of the conveyor belt.

4. The anti-overlapping device for a conveyor belt machine according to claim 1, characterized in that, Multiple connecting plates (12) are fixed on both sides of the frame (1) in the width direction. Each of the belt deflector rollers (4) and each of the belt pressing rollers (3) are rotatably connected to the corresponding connecting plate (12).

5. The anti-overlapping device for a conveyor belt machine according to claim 1, characterized in that, The detector (2) is a two-stage deviation switch.

6. The anti-overlapping device for a conveyor belt machine according to claim 3, characterized in that, It also includes a first hydraulic alignment device, wherein the two drive wheels (6) of the first hydraulic alignment device are respectively disposed on both sides of the width direction of the belt (11) and located within a preset gap of one of the limiting components.

7. The anti-overlapping device for a conveyor belt machine according to claim 6, characterized in that, It also includes a second hydraulic alignment device, wherein the two drive wheels (6) of the second hydraulic alignment device are respectively disposed on both sides of the belt (11) in the width direction and located between the two limiting components.

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