Controllable belt-floating-preventing device and belt conveyor comprising same

Abstract

The invention provides a controllable belt floating prevention device and a belt conveyor comprising the same. The belt floating prevention device comprises a supporting frame, a belt pressing wheel, a belt pressing wheel mounting shaft, a lifting device and an electric oil cylinder, the supporting frame is provided with a fixed base and is suitable for being fixed to a machine body frame of the belt conveyor through the fixed base, and the belt pressing wheel is used for pressing a floating conveying belt. The pinch roller is connected to the two lifting devices through pinch roller installation shafts, the two lifting devices are installed on stand columns on the two sides of the supporting frame respectively, and the electric oil cylinder controls the pinch roller to ascend and descend through the lifting devices. According to the conveying device, normal material conveying on the conveying belt can be allowed while belt floating is prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of belt conveyors; specifically, the present invention relates to a controllable anti-floating belt device and a belt conveyor comprising the same. Background Art

[0002] For the belt surface of the belt conveyor in the concave arc section, due to the tension of the conveyor belt, when the component of the conveyor belt gravity in the vertical direction is smaller than the component of the tension in the vertical direction, the conveyor belt tends to leave the load-bearing roller, resulting in the phenomenon of streamers, causing material spillage. In severe cases, the conveyor belt will interfere with the tunnel roof or other facilities, causing tearing, resulting in production accidents.

[0003] The existing belt pressing device structure uses a fixed pressing wheel placed on the upper belt surface to limit the displacement of the conveyor belt, so that the conveyor belt and the upper load-bearing roller will not deviate too much. However, this structure will block the normal transportation of coal flow during the normal coal transportation stage, and even cause material spillage or jamming. Summary of the invention

[0004] In view of this, the present invention provides a controllable anti-floating belt device and a belt conveyor comprising the same, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] To achieve the aforementioned objectives, the first aspect of the present invention provides a controllable anti-floating device for a belt conveyor, wherein the anti-floating device includes a support frame, a belt pressure roller, a belt pressure roller mounting shaft, a lifting device, and an electric cylinder. The support frame has a fixed base and is suitable for being fixed to the body frame of the belt conveyor through the fixed base. The belt pressure roller is used to press the floating conveyor belt. The belt pressure roller is connected to two lifting devices through the belt pressure roller mounting shaft. The two lifting devices are respectively installed on the two side columns of the support frame, and the electric cylinder controls the lifting and lowering of the belt pressure roller through the lifting device.

[0006] In the anti-floating device as described above, optionally, the electric cylinder is located at the lower part of the two side columns of the support frame, the lifting device is located above the electric cylinder, and the output shaft of the electric cylinder is connected to the lifting device and drives the lifting device to control the lifting and lowering of the belt pressure wheel.

[0007] In the anti-floating belt device as described above, optionally, cushion blocks are respectively fixed at the bottom of the columns, and the electric cylinders are respectively mounted on the cushion blocks.

[0008] In the anti-floating belt device as described above, optionally, the lifting device includes a sliding frame and a guide rail, both ends of the guide rail are fixed to the column, the main part of the guide rail is parallel and spaced from the column, the sliding frame is sleeved on the main part of the guide rail, and the output shaft end of the electric cylinder is connected to the sliding frame.

[0009] In the anti-floating belt device as described above, optionally, the guide rail is a hollow square tube, the sliding frame includes a flat lining plate and a grooved cover plate, the flat lining plate and the grooved cover plate are fixed together to form a hollow sliding frame, and the guide rail is sleeved between the flat lining plate and the grooved cover plate.

[0010] In the anti-floating device as described above, optionally, the belt pressure roller mounting shaft is connected to the sliding frame through a bearing, and a plurality of mounting holes are provided on the sliding frame, so that the bearing seat of the bearing can have a plurality of mounting positions on the sliding frame.

[0011] In the anti-floating belt device as described above, optionally, the anti-floating belt device has two belt pressing wheels, the belt pressing wheels are respectively fixed to the belt pressing wheel mounting shafts, and the two belt pressing wheels are spaced apart and respectively used to press two sides of the floating conveyor belt.

[0012] In the anti-floating belt device as described above, optionally, the anti-floating belt device has a detection device and a controller, and the detection device and the controller are arranged side by side with the electric cylinder, and the detection device is vertically aligned with the belt pressure wheel. The detection device is used to detect the material on the conveyor belt, and when the material on the conveyor belt is lower than a preset value, the controller controls the lifting device to lower the belt pressure wheel, and when the material on the conveyor belt is higher than a preset value, the controller controls the lifting device to raise the belt pressure wheel.

[0013] In the anti-floating device as described above, optionally, the detection device and the controller determine whether to control the belt pressing wheel to perform the belt pressing action according to the pressure value of the electric cylinder, and when the pressure value of the electric cylinder is higher than the upper limit of a preset threshold, the belt pressing wheel is controlled to rise a predetermined distance; when the pressure value of the electric cylinder is lower than the lower limit of the preset threshold, the belt pressing wheel is controlled to lower a predetermined distance.

[0014] In the anti-floating device as described above, optionally, the support frame has a crossbeam, and the two ends of the crossbeam are respectively connected to the tops of the columns on both sides to stabilize the support frame, and the crossbeam and the columns are both channel steels, the crossbeam is located on one side of the support frame, and the electric cylinder, the lifting device and the belt pressure wheel are located on the other side of the support frame.

[0015] In order to achieve the aforementioned objective, a second aspect of the present invention provides a belt conveyor, wherein the belt conveyor has a concave arc segment, and an anti-floating belt device as described in any one of the aforementioned first aspects is installed on the concave arc segment.

[0016] It can be seen from the above technical solutions of the present invention that the present invention proposes a novel controllable belt pressure structure device, which can prevent the conveyor belt from drifting in the concave arc section of the conveyor, and also prevent material from being scattered and allow smooth coal passing.

[0017] It can be seen from the optional technical solutions of the present invention that the anti-floating belt device can start the electric cylinder only when necessary, that is, use electricity when the conveyor belt is unloaded, thereby saving energy.

[0018] It can be seen from the further optional technical solutions of the present invention that the present invention can improve the working efficiency of the belt conveyor, reduce the failure rate and / or reduce the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings: Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a controllable anti-floating belt device for a belt conveyor of the present invention is shown; and Figure 2 Shows Figure 1 Schematic side view of a controllable anti-floating belt device for a medium belt conveyor.

[0020] Figure numerals: 1-fixed base; 2-electric cylinder; 3-sliding frame; 4-bearing seat; 5-pressing wheel; 6-mounting shaft; 7-guide rail; 8-column; 9-crossbeam; 10-pad; 11-detection device and controller. DETAILED DESCRIPTION

[0021] With reference to the accompanying drawings and specific embodiments, the structure, composition, characteristics and advantages of the anti-floating belt device of the present invention and the belt conveyor including the same will be described below in an exemplary manner. However, all descriptions should not be used to form any limitation on the present invention.

[0022] For any single technical feature described or implied in the embodiments mentioned in this document, or any single technical feature displayed or implied in the accompanying drawings, the present invention still allows any combination or deletion between these technical features (or their equivalents) without any technical obstacles, and thus it should be considered that these more embodiments according to the present invention are also within the scope of the description of this document.

[0023] Figure 1A three-dimensional structural schematic diagram of an embodiment of a controllable anti-floating belt device for a belt conveyor of the present invention is shown.

[0024] As can be seen from the figure, the anti-floating device includes the following structures, namely, a support frame, a belt-pressing roller 5, a belt-pressing roller mounting shaft 6, a lifting device and an electric cylinder 2. The support frame in the figure may include two side columns 8, a crossbeam 9 and a fixed base 1, and the lifting device may include a guide rail 7 and a sliding frame 3.

[0025] As mentioned above, in the figure, the support frame may include two side columns 8, a crossbeam 9 and a fixed base 1, which are described below respectively.

[0026] In this embodiment, the two side columns 8 are used to support other components such as the cross beam 9 and the pinch roller 5, and the pinch roller 5 is allowed to rise and fall through the lifting device. As shown in the figure, the two side columns 8 are both vertically arranged and parallel to each other.

[0027] The two side columns 8 can be made of channel steel, and are provided with transverse and vertical reinforcement ribs on the side to ensure that the columns 8 have sufficient support strength. The two side columns 8 are respectively fixed to the body frame of the conveyor through the fixed base 1 on both sides of the conveyor belt, so that the belt pressing wheel 5 located between the two columns 8 can press the conveyor belt that may float.

[0028] In this embodiment, the cross beam 9 can be fixed to the top of the two side columns 8, specifically, both ends of the cross beam 9 are fixed to the top of the two side columns 8, and the cross beam 9 can be perpendicular to the two side columns 8. The specific fixing method of the cross beam 9 and the two side columns 8 can be, for example, welding, bolt connection, etc.

[0029] The crossbeam 9 provides a horizontal support surface by connecting the two side columns 8. As mentioned above, in order to ensure the firmness and reliability of the connection between the crossbeam 9 and the column 8, welding or high-strength bolt connection can be adopted. The crossbeam 9 and the column 8 can be made of channel steel to facilitate bearing the weight of the lifting device, the belt pressure roller mounting shaft and the belt pressure roller.

[0030] The fixed base 1 of the anti-floating belt device is connected to the body frame of the belt conveyor by bolts, so that the support frame is fixed to the body frame of the belt conveyor. This design can ensure the stability of the anti-floating belt device and will not shake or deflect and displace, thereby affecting the operation of the belt conveyor.

[0031] In this example, the fixed base 1 may have a bottom plate, the area of ​​which is larger than the bottom area of ​​the column 8, so as to increase the contact area with the body frame of the conveyor, disperse the weight, avoid excessive local pressure, and make the entire anti-floating belt device more stable. The bottom plate also provides support for some reinforcing ribs on the column 8.

[0032] In addition, pads 10 are provided at the bottom of the two side columns 8. In the illustrated example, the electric cylinder 2, the detection device and the controller 11 are fixed on the pads 10, ensuring that the electric cylinder 2 can be stably installed at the bottom of the column 8, while providing sufficient support area to distribute the weight of the electric cylinder 2. The pads 10 can also be advantageously used to adjust the height of the electric cylinder 2, the detection device and the controller 11. For example, from Figure 1 It can be seen that the electric cylinder 2 is installed on the pad 10 at the bottom of the columns 8 on both sides of the support frame. This design allows the electric cylinders 2 on both sides to be located at the same height, achieving synchronous lifting and lowering of the electric cylinders 2 on both sides, ensuring that both ends of the pressure wheel belt installation shaft 6 are level. The detection device and controller 11 can be used to detect the coal on the conveyor belt, and control the lifting and lowering of the pressure wheel 5 based on the coal situation, lowering the anti-floating belt when there is no coal, and raising it when there is coal to allow the coal to pass.

[0033] Lifting devices are installed on the same side of the two side columns 8. The two lifting devices can be located above the electric cylinder 2, respectively, to facilitate the driving of the electric cylinder 2. The output shaft of the electric cylinder 2 is connected to the lifting device, and the lifting device can be used to control the lifting of the belt-pressing roller 5 by driving the lifting device. The belt-pressing roller 5 can be used to press the floating conveyor belt as needed.

[0034] As shown in the figure, in this embodiment, the lifting device can include a sliding frame 3 and a guide rail 7, and the guide rail 7 is fixed on the column 8, and the sliding frame 3 can move along the guide rail 7. Since the two ends of the belt-pressing roller mounting shaft 6 are connected to the sliding frame 3, the lifting and lowering of the sliding frame 3 can drive the lifting and lowering of the belt-pressing roller mounting shaft 6 and the belt-pressing roller 5, and perform the action of pressing and releasing the belt-pressing. The belt-pressing roller 5 can rotate on the mounting shaft 6, so under the belt-pressing state, it still does not hinder the normal travel of the conveyor belt.

[0035] According to the illustrated example, optionally, the guide rail 7 is a hollow square tube, which provides guidance and support for the sliding frame 3. The hollow design increases the strength and rigidity of the guide rail 7, while also reducing the weight, making it strong and light.

[0036] The sliding frame 3 may include a flat lining plate and a grooved cover plate, which are fixed together to form a hollow sliding frame 3, and the flat lining plate provides a plane in contact with the guide rail 7, ensuring that the sliding frame 3 can slide smoothly along the guide rail 7. The main part of the guide rail 7 is parallel to the two side columns 8 of the support frame and is separated by a distance, so that the guide rail 7 is conveniently sleeved between the flat lining plate and the grooved cover plate of the sliding frame 3, ensuring that the sliding frame 3 can slide smoothly therebetween.

[0037] The belt-pressing roller installation shaft 6 can be parallel to the crossbeam 9 of the support frame. The belt-pressing roller installation shaft 6 can have a belt-pressing roller 5 on each side, with a certain interval between the two belt-pressing rollers 5, and the interval can be adjustable, which is used to press the conveyor belt on both sides to prevent it from drifting. In an optional embodiment, the position of the belt-pressing roller 5 on the belt-pressing roller installation shaft 6 can also be adjustable; in a further optional embodiment, the detection device and the controller 11 can independently control the lifting devices on the two side columns 8 according to the specific situation, flexibly adjust the height of the two side belt-pressing rollers 5, and more effectively prevent the belt from drifting.

[0038] according to Figure 1 , both ends of the belt-pressing roller mounting shaft 6 can be connected to the sliding frame 3 through the bearing seat 4. The arrangement of the bearing seat 4 enables the mounting shaft 6 to rotate smoothly on the sliding frame 3 and can withstand the weight of the belt-pressing roller 5 and the friction generated during operation.

[0039] In order to improve the flexibility of the device, multiple groups of mounting holes can be provided on the sliding frame 3, and the bearing seat 4 can be selectively installed on the sliding frame 3 through different mounting holes. This enables the bearing seat 4 to have multiple mounting positions on the sliding frame 3. The design of multiple mounting positions enables the anti-drifting device to adjust the position of the belt-pressing wheel 5 according to different working requirements, thereby better adapting to conveyor belts of different widths or positions.

[0040] The electric cylinder 2 is located at the lower part of the two side columns 8 of the support frame. The lifting device is located above the electric cylinder 2. The electric cylinder 2 controls the lifting and lowering of the belt-pressing roller 5 through the lifting device. The belt-pressing roller 5 can be adjusted to a suitable position according to actual needs, thereby preventing the conveyor belt from running or drifting.

[0041] like Figure 1 As shown, a detection device and a controller 11 are also installed at the bottom of the anti-floating belt device. The detection device and the controller 11 can be arranged side by side with the electric cylinder 2. Figure 2 , the detection device and the controller 11 may include a detection device at the bottom and a controller at the top. The detection device is aligned with the belt-pressing wheel 5 in the vertical direction, so that the detection device can more accurately detect the material condition on the conveyor belt at the position aligned with the belt-pressing wheel. When the material on the conveyor belt is lower than the preset value, the controller controls the lifting device to lower the belt-pressing wheel 5, and when the material on the conveyor belt is higher than the preset value, the controller controls the lifting device to raise the belt-pressing wheel 5, and the entire adjustment process does not require manual intervention. The above-mentioned preset values ​​for lowering the belt-pressing wheel 5 and raising the belt-pressing wheel 5 can be selected based on experience. When a specific value of the material height on the conveyor belt is detected, the lifting height of the belt-pressing wheel 5 can be determined based on the specific value, so that it can achieve anti-floating belt while allowing material to pass.

[0042] In an optional embodiment, the detection devices on both sides can also be set to be aligned with the upper surface of the conveyor belt. For example, the contour of the upper surface of the conveyor belt can be detected at this time, and the presence and amount of materials can be judged based on the contour. When the detection device detects that the material on the conveyor belt is lower than the preset value, the controller controls the electric cylinder 2 to start, the lifting device descends, and the belt-pressing wheel 5 also slowly descends to press the conveyor belt to prevent the conveyor belt from drifting; when the detection device detects that the material on the conveyor belt is higher than the preset value, the controller controls the electric cylinder 2 to start, the lifting device rises, and the belt-pressing wheel 5 rises together to allow smooth coal passing.

[0043] In a further optional embodiment, the detection device and the controller can determine whether to control the belt-pressing wheel to perform the belt-pressing action according to the pressure value of the electric oil cylinder. When the pressure value of the electric oil cylinder is higher than the upper limit of the preset threshold, the belt-pressing wheel is controlled to rise by a predetermined distance, and when the oil pressure value of the electric oil cylinder is lower than the lower limit of the preset threshold, the belt-pressing wheel is controlled to lower by a predetermined distance. The oil pressure value of the electric oil cylinder reflects the tension of the conveyor belt during the operation of the belt conveyor, and thus the conveyor belt streamer condition can be determined based on it, and anti-streamer control can be performed.

[0044] It can be seen that in this embodiment, the purpose of the electric cylinder is not simply to extend and retract, but to determine whether to perform a belt pressing action through the pressure of the hydraulic oil during the movement. The basis of the oil pressure value is the tension of the conveyor belt in operation. The action of the electric cylinder can be adjusted in real time according to the tension of the conveyor and the change of materials during the movement.

[0045] In some optional embodiments, driving forces can be provided for the two belt-pressing rollers of the controllable anti-floating device. For example, these driving forces can be realized by a motor and a speed change mechanism. In the belt-pressing state, once the detection device (not shown) detects that the conveyor belt may be wrinkled or deviated, which has a tendency to make the belt-pressing ineffective, driving forces are provided for the two belt-pressing rollers respectively, so that the two belt-pressing rollers rotate at different speeds, and the conveyor belt can be rubbed at different speeds respectively. The wrinkles or deviations of the conveyor belt can be fine-tuned by controlling the friction force and friction speed of the two belt-pressing rollers on the conveyor belt. The detection device can detect the wrinkles or deviations of the conveyor belt by real-time photography or video recording. The magnitude of the friction force can be achieved by adjusting the electric cylinder shown in the figure. In addition, in order to increase the friction force, the wheel rim of the belt-pressing roller can be set to a rubber material. When the conveyor belt is wrinkled or deviated due to the different forms of coal materials, the wrinkles or deviations of the conveyor belt can be reduced by the active friction participation of the belt-pressing roller, and the belt-pressing effect can be improved. Furthermore, the rim of the pinch roller can be provided with a spiral pattern or an inclined groove, so that the spiral pattern or the inclined groove of the pinch roller can provide part of the lateral force through friction and extrusion with the wrinkles or offset parts of the conveyor belt.

[0046] Figure 2 Shows Figure 1 Schematic side view of a controllable anti-floating belt device for a medium belt conveyor.

[0047] As can be seen from the figure, the support frame of the controllable anti-floating belt device can be fixed to the body frame of the conveyor through a fixed base 1. A reinforcing rib is arranged on the left side of the fixed base 1 in the figure, and a support base is arranged on the right side of the fixed base in the figure, and a cushion block 10 is arranged on the support base, and an electric cylinder 2, a detection device and a controller 11 are arranged on the cushion block 10.

[0048] According to the figure, the crossbeam 9 is located on the supporting frame at a different side from the lifting device, the belt-pressing roller 5, the electric cylinder 2, the detection device and the controller 11. The bottom plate at the lower end of the fixed base 1 advantageously maintains the stability of the entire controllable anti-floating belt device.

[0049] It can also be seen from the figure that there is a gap between the guide rail 7 and the column 8 of the lifting device, so that the sliding frame 3 can be sleeved on the guide rail 7 and can be lifted and slid along the guide rail 7. Specifically, the main part of the guide rail 7 is parallel to the column 8 and the sliding frame 3 is sleeved on the main part of the guide rail. The output shaft of the electric cylinder 2 is connected to the sliding frame 3; specifically, in the illustrated example, the output shaft of the electric cylinder 2 extends into the guide rail 7 and is connected to the sliding frame 3 inside the guide rail 7. The guide rail 7 can have a slot to allow the output shaft of the electric cylinder 2 to connect to the sliding frame 3 without affecting its movement.

[0050] In this embodiment, both ends of the guide rail 7 are fixed to the column 8. As shown in the figure, both ends of the guide rail 7 can be fixed to the column 8 by bolts. In order to achieve that the main part of the guide rail 7 is parallel to the column 8, gaskets can be provided at the connection between the upper and lower ends of the guide rail 7 and the column 8.

[0051] It can also be seen from the figure that the sliding frame 3 includes a flat lining plate and a grooved cover plate, which are fixed together by bolts to form a hollow sliding frame 3, and the guide rail 7 is sleeved between the flat lining plate and the grooved cover plate. The flat lining plate is on the side close to the column 8.

[0052] because Figure 2 It is a side view. Due to the viewing angle, only the columns 8, guide rails 7, sliding frame 3, belt-pressing roller 5, detection device and controller 11 on one side can be seen in the figure. Therefore, the columns 8 on both sides of the support frame can be aligned in parallel, so that the overall structure of the support frame is more stable and not easy to shake due to the vibration of the conveyor belt; the mounting shaft 6 of the belt-pressing roller 5 can be set horizontally to ensure that the belt-pressing rollers 5 on both sides can evenly apply pressure to the conveyor belt. It can also be seen from the figure that in order to reduce weight, a hollow hole can be set on the belt-pressing roller 5, and radial reinforcing ribs can be set to strengthen the structure.

[0053] The electric cylinder 2, the detection device and the controller 11 are placed on the bottom pads 10 on both sides of the support frame. The electric cylinder 2 controls the lifting and lowering of the belt-pressing rollers 5 on both sides through the lifting device, so that the position of the belt-pressing rollers 5 can be adjusted as needed. The detection field of the detection device can be aligned with the conveyor belt to detect whether there is material on the conveyor belt.

[0054] When the conveyor belt is unloaded, that is, the detection device detects that there is no material on the conveyor belt, the controller receives the signal from the detection device, controls the electric cylinder 2 to start, retracts the output shaft, pulls the lifting device downward, connects the belt pressure wheel 5 to descend, and applies pressure to the conveyor belt to prevent the belt from drifting.

[0055] When materials appear on the conveyor belt, the detection device detects the presence of materials. After receiving the new signal, the controller controls the electric cylinder 2 to start, the output shaft extends, and the lifting device moves upward. The connected belt pressure wheel 5 moves upward and no longer applies pressure to the conveyor belt, allowing the material to pass smoothly.

[0056] The invention can automatically adjust the position of the belt pressure wheel to adapt to different states of the conveyor belt. It provides necessary pressure to prevent the belt from drifting when it is unloaded, and releases the pressure when it is loaded to ensure that the material can pass smoothly. This can improve the working efficiency of the belt conveyor, reduce the failure rate, and reduce the maintenance cost.

[0057] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above implementation without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. A controllable anti-floating belt device for a belt conveyor, characterized in that: The anti-floating belt device comprises a support frame, a belt-pressing wheel (5), a belt-pressing wheel mounting shaft (6), a lifting device, and an electric cylinder (2); the support frame has a fixed base (1) and is suitable for being fixed to a body frame of a belt conveyor through the fixed base (1); the belt-pressing wheel (5) is used to press the floating conveyor belt; the belt-pressing wheel (5) is connected to two lifting devices through the belt-pressing wheel mounting shaft (6); the two lifting devices are respectively mounted on two side columns (8) of the support frame; and the electric cylinder (2) controls the lifting and lowering of the belt-pressing wheel (5) through the lifting device.

2. The anti-floating ribbon device according to claim 1, characterized in that: The electric cylinder (2) is located at the lower part of the two side columns (8) of the support frame, the lifting device is located above the electric cylinder (2), and the output shaft of the electric cylinder (2) is connected to the lifting device and drives the lifting device to control the lifting of the belt pressing wheel (5).

3. The anti-floating belt device as claimed in claim 2, characterized in that: Cushion blocks (10) are respectively fixed at the bottom of the upright columns (8), and the electric oil cylinders are respectively mounted on the cushion blocks (10).

4. The anti-floating ribbon device as claimed in claim 2, characterized in that: The lifting device comprises a sliding frame (3) and a guide rail (7), the two ends of the guide rail (7) are fixed to the column (8), the main body of the guide rail (7) is parallel to and spaced from the column (8), the sliding frame (3) is sleeved on the main body of the guide rail (7), and the shaft end of the electric cylinder (2) is connected to the sliding frame (3).

5. The anti-floating ribbon device according to claim 4, characterized in that: The guide rail (7) is a hollow square tube, the sliding frame (3) comprises a flat lining plate and a grooved cover plate, the flat lining plate and the grooved cover plate are fixed together to form a hollow sliding frame (3), and the guide rail (7) is sleeved between the flat lining plate and the grooved cover plate.

6. The anti-floating ribbon device according to claim 4, characterized in that: The belt-pressing wheel mounting shaft (6) is connected to the sliding frame (3) via a bearing, and a plurality of groups of mounting holes are provided on the sliding frame (3), so that the bearing seat (4) of the bearing can have a plurality of mounting positions on the sliding frame (3).

7. The anti-floating ribbon device according to claim 1, characterized in that: The anti-floating belt device comprises two belt pressing wheels (5), the belt pressing wheels (5) are respectively fixed to the belt pressing wheel mounting shafts (6), and the two belt pressing wheels (5) are arranged at intervals and are respectively used to press two sides of the floating conveyor belt.

8. The anti-floating ribbon device according to claim 1, characterized in that: The anti-floating belt device comprises a detection device and a controller (11), wherein the detection device and the controller (11) are arranged side by side with the electric cylinder (2), and the detection device is vertically aligned with the belt-pressing wheel (5). The detection device is used to detect the material on the conveyor belt. When the material on the conveyor belt is lower than a preset value, the controller controls the lifting device to lower the belt-pressing wheel (5), and when the material on the conveyor belt is higher than a preset value, the controller controls the lifting device to raise the belt-pressing wheel (5).

9. The anti-floating ribbon device according to claim 1, characterized in that: The detection device and the controller (11) determine whether to control the belt pressing wheel (5) to perform a belt pressing action based on the pressure value of the electric cylinder (2); when the pressure value of the electric cylinder (2) is higher than a preset upper threshold value, the belt pressing wheel (5) is controlled to be raised by a preset distance; when the pressure value of the electric cylinder (2) is lower than a preset lower threshold value, the belt pressing wheel (5) is controlled to be lowered by a preset distance.

10. The anti-floating ribbon device according to claim 1, characterized in that: The support frame comprises a crossbeam (9), the two ends of which are respectively connected to the tops of the columns (8) on both sides, so as to stabilize the support frame. The crossbeam (9) and the columns (8) are both channel steels. The crossbeam (9) is located on one side of the support frame, and the electric cylinder (2), the lifting device and the belt-pressing wheel (5) are located on the other side of the support frame.

11. A belt conveyor, characterized in that: The belt conveyor has a concave arc section, and the anti-floating belt device according to any one of claims 1 to 10 is installed on the concave arc section.

Images