Flexible belt pressing device and belt conveyor

Abstract

Embodiments of the present invention provide a flexible belt-pressing device and a belt conveyor, relating to the field of belt conveying materials. The device aims to improve the problem of conveyor belts being easily suspended, which can lead to the conveyor belt being easily deviated and materials being easily spilled. The flexible belt-pressing device includes a frame, a hinged support, a frame, a roller assembly, a pressure roller, and a counterweight. The frame is swingably mounted on the frame. The roller assembly and the pressure roller are disposed at a first swinging end of the frame, with the roller assembly located obliquely below the pressure roller. The roller assembly is used to lift the conveyor belt, while the pressure roller is used to press down on the conveyor belt. The counterweight is disposed at a second swinging end of the frame. The belt conveyor includes a ground belt conveyor and a flexible belt-pressing device. The conveyor belt passes between the roller assembly and the pressure roller. The pressure roller acts on the conveyor belt to press down on the conveyor belt, limiting the suspension of the conveyor belt and shortening the suspended section of the conveyor belt. The roller assembly supports the conveyor belt from below, ensuring stable operation of the conveyor belt and the material it carries.

Description

Technical Field

[0001] The present invention relates to the field of belt conveying materials, in particular to a flexible belt pressing device and a belt conveyor. Background Art

[0002] At present, stackers and reclaimers are highly efficient and modern mechanical equipment for stacking and reclaiming bulk materials in storage yards. There is a large angle between their loading car and the ground belt, generally 15°. To reduce the belt from hanging in the air at the angle, a fixed belt pressing device is installed at the angled bend. However, when this type of fixed belt pressing device is running with empty materials, especially at the moment of equipment start-up and stop, a large extrusion and impact force is generated between the belt and the fixed belt pressing device. Under the action of the tension, the belt tends to be straight, resulting in a long continuous non-contact section with the fixed rollers on the ground at the angle, that is, a suspended section. When the belt is suspended and loses the restraint of the rollers, it is prone to shaking and deviation, which is detrimental to the operation of the belt. Therefore, the extrusion and impact forces reduce the service life of the belt and increase the risk of operational safety. When conveying materials normally, the belt falls to the fixed rollers on the ground under the action of the gravity of the materials and runs out of contact with the fixed belt pressing device. However, when the amount of material on the belt is small or the conveying is unbalanced, the belt cannot completely fall to the fixed rollers on the ground. The suspended belt surface is flat and vibrates severely. Materials, especially loose pellets and lump ore, are easily spilled onto the ground on the flat and vibrating belt, polluting the environment and increasing the labor intensity of workers. They will also splash onto the lower belt and be brought to the head or tail roller, causing the belt to deviate and be damaged. Summary of the Invention

[0003] The purpose of the present invention includes, for example, providing a flexible belt pressing device, which can improve the problem that the conveyor belt is easily suspended in the air, causing the conveyor belt to easily deviate and materials to be easily spilled.

[0004] The purpose of the present invention also includes providing a belt conveyor, which can improve the problem that the conveyor belt is easily suspended in the air, causing the conveyor belt to deviate and materials to be easily spilled.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the present invention provides a flexible belt-pressing device for cooperating with a conveyor belt, the flexible belt-pressing device comprising a vehicle frame, a hinge support, a frame, a roller assembly, a belt-pressing roller, and a counterweight; the hinge support is disposed on the vehicle frame, the frame is swingably disposed on the hinge support, and the frame forms a first swing end and a second swing end along the length direction of the conveyor belt that can swing up and down relative to each other;

[0007] The roller group and the pressure roller are arranged at intervals at the first swinging end of the frame, and the roller group is away from the hinge support relative to the pressure roller. The roller group is located obliquely below the pressure roller. The roller group is used to cooperate with the lower surface of the conveyor belt to lift the conveyor belt, and the pressure roller is used to cooperate with the upper surface of the conveyor belt to press down the conveyor belt; the counterweight is set at the second swinging end of the frame.

[0008] In addition, the flexible belt pressing device provided by the embodiment of the present invention may also have the following additional technical features:

[0009] Optionally, the flexible belt pressing device further comprises a trough-type hanger, and the trough-type hanger is arranged below the first swinging end of the frame;

[0010] The roller group includes a first roller, a second roller and a third roller arranged in the trough-shaped hanger; the first roller, the second roller and the third roller are arranged in sequence along the width direction of the conveyor belt, the first roller is inclined outward relative to the second roller, and the third roller is inclined outward relative to the second roller; the first roller, the second roller and the third roller are jointly used to lift the conveyor belt.

[0011] Optionally, the flexible belt pressing device further comprises a plurality of conveying roller groups, and the plurality of conveying roller groups are sequentially spaced apart and arranged on the frame along the length direction of the conveying belt;

[0012] One of the conveying roller groups is arranged below the pinch roller and can be used to lift the conveying belt below the pinch roller.

[0013] Optionally, the weight of the counterweight is adjustable to adjust the force with which the pressure wheel presses down the conveyor belt.

[0014] Optionally, the moment of force exerted by the belt pulley on the hinge support is greater than the moment of force exerted by the counterweight on the hinge support.

[0015] Optionally, the flexible belt pressing device further includes a limiting mechanism, which is arranged on the vehicle frame and located below the frame. The limiting mechanism is located between the belt pressing wheel and the hinge support, and is used to abut against the frame to prevent the first swing end of the frame from swinging downward.

[0016] Optionally, the height of the limiting mechanism is adjustable to adjust the gap between the pinch wheel and the conveyor belt.

[0017] Optionally, the flexible belt pressing device further includes a pin shaft, and the frame and the hinge support are swingably connected via the pin shaft.

[0018] An embodiment of the present invention further provides a belt conveyor comprising a ground belt conveyor and a flexible belt pressing device, wherein the ground belt conveyor is provided with the conveying belt, and the roller assembly and the belt pressing wheel are used to cooperate with the conveying belt.

[0019] Optionally, the ground belt conveyor includes a ground support and a plurality of fixed roller groups, and the plurality of fixed roller groups are sequentially spaced apart and arranged on the ground support;

[0020] The flexible belt pressing device further comprises a running wheel, the frame is arranged on the running wheel, and the running wheel is used to drive the frame to move above the ground belt conveyor.

[0021] The flexible belt pressing device and the belt conveyor of the embodiment of the present invention have the following beneficial effects, for example:

[0022] The flexible belt pressing device includes a frame, a hinge support, a frame, a roller group, a pressure roller and a counterweight; the hinge support is arranged on the frame, the frame is swingably arranged on the hinge support, and the frame forms a first swing end and a second swing end that can swing up and down relatively along the length direction of the conveyor belt; the roller group and the pressure roller are arranged at intervals at the first swing end of the frame, and the roller group is away from the hinge support relative to the pressure roller, the roller group is located obliquely below the pressure roller, the roller group is used to cooperate with the lower surface of the conveyor belt to lift the conveyor belt, and the pressure roller is used to cooperate with the upper surface of the conveyor belt to press down the conveyor belt; the counterweight is set at the second swing end of the frame.

[0023] The conveyor belt passes between the roller assembly and the pinch roller. The pinch roller acts on the conveyor belt, pressing it down to limit and shorten the length of the belt that is suspended in the air. The roller assembly supports the conveyor belt from below, ensuring stable operation of the conveyor belt and the material it carries.

[0024] The conveyor belt runs on the roller group under the action of gravity and gradually separates from the pressure roller and creates a gap, so that the pressure roller no longer wears and squeezes the belt. When the material cross-section width is greater than the gap between the pressure rollers, it can also pass smoothly, thereby achieving the purpose of protecting the belt and reducing material spillage.

[0025] When the conveyor belt moves up and down due to changes in force, the pinch roller moves up and down synchronously, maintaining a predetermined pressure on the conveyor belt and reducing damage to the conveyor belt caused by the pinch roller.

[0026] Belt conveyors, including ground belt conveyors and flexible belt pressing devices, can improve the problem that the conveyor belt is easily suspended in the air, causing the conveyor belt to deviate and materials to be easily spilled. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A front view of a flexible belt pressing device provided in an embodiment of the present invention;

[0029] Figure 2 A top view of a flexible belt pressing device provided in an embodiment of the present invention;

[0030] Figure 3 A schematic structural diagram of a belt conveyor in an empty state provided by an embodiment of the present invention;

[0031] Figure 4 This is a structural schematic diagram of the belt conveyor carrying material provided by an embodiment of the present invention.

[0032] Icons: 10- conveyor belt; 20- flexible belt pressing device; 200- frame; 210- hinge support; 211- pin shaft; 220- frame; 230- trough hanger; 231- roller group; 232- first roller; 233- second roller; 234- third roller; 240- belt pressure roller; 250- counterweight; 260- walking wheel; 270- conveyor roller group; 280- limiting mechanism; 30- ground belt conveyor; 31- ground bracket; 32- fixed roller group. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0038] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0039] The following combination Figures 1 to 4 The flexible belt pressing device 20 provided in this embodiment is described in detail.

[0040] Please refer to Figures 1 to 4 The embodiment of the present invention provides a flexible belt pressing device 20 for cooperating with the conveyor belt 10. The flexible belt pressing device 20 includes a frame 200, a hinge support 210, a frame 220, a roller group 231, a belt pressing roller 240 and a counterweight 250; the hinge support 210 is set on the frame 200, and the frame 220 is swingably set on the hinge support 210, and the frame 220 forms a first swing end and a second swing end that can swing up and down relatively along the length direction of the conveyor belt 10; The roller group 231 and the pressure roller 240 are arranged at intervals at the first swing end of the frame 220, and the roller group 231 is away from the hinge support 210 relative to the pressure roller 240. The roller group 231 is located obliquely below the pressure roller 240. The roller group 231 is used to cooperate with the lower surface of the conveyor belt 10 to lift the conveyor belt 10, and the pressure roller 240 is used to cooperate with the upper surface of the conveyor belt 10 to press down the conveyor belt 10; the counterweight 250 is set at the second swing end of the frame 220.

[0041] The "conveyor belt 10" is used to transport materials from a low place to a high place. The hinge support 210 is welded to the frame 200, and the frame 220 is swingably mounted on the frame 200 made at the tail end of the stacker-reclaimer incoming material vehicle or loading vehicle through the hinge support 210. The roller group 231, the belt pressure roller 240 and the counterweight 250 are arranged on the frame 220 in sequence along the length direction of the conveyor belt 10, wherein the roller group 231 is located at the lower left of the belt pressure roller 240. The flexible belt pressure device 20 is used to cooperate with a portion of the conveyor belt 10. Specifically, the belt pressure roller 240 and the roller group 231 are respectively located on the upper and lower sides of the conveyor belt 10, and cooperate with the upper surface and lower surface of the conveyor belt 10 respectively. There is no need to add a power source or external actuator. By utilizing the lever principle, the flexible belt pressing device 20, the weight of the conveyor belt 10 and the tendency of the conveyor belt 10 to be straightened due to tension generate an upward force to move up and down on both sides of the hinge support 210.

[0042] The roller assembly 231 and the pinch roller 240 are positioned at one end of the frame 220, i.e., at the first swinging end. The counterweight 250 is positioned at the other end of the frame 220, i.e., at the second swinging end. The conveyor belt 10 swings up and down with the hinge support 210 as the fulcrum. The conveyor belt 10 passes between the roller assembly 231 and the pinch roller 240. The pinch roller 240 exerts downward pressure on the conveyor belt 10, limiting its suspension and shortening the suspended section. The roller assembly 231 supports the conveyor belt 10 from below, ensuring stable operation of the conveyor belt 10 and the material it carries. The counterweight 250 is mounted at the other end of the frame 220 and controls the pressure exerted by the pinch roller 240 on the conveyor belt 10.

[0043] The roller assembly 231 and pinch roller 240 can swing up and down with the hinge support 210 as the amount of material on the conveyor belt 10 changes, providing agile and reliable operation. When the conveyor belt 10 is unloaded or running with a small amount of material, the pressure from the pinch roller 240 is insufficient to fully press the conveyor belt 10 downward at the angle, but it can shorten the distance the conveyor belt 10 is suspended, enhancing operational stability. Simultaneously, the conveyor belt 10, under the action of the pinch roller 240 and the conveyor belt 10, falls onto the roller assembly 231. The roller assembly 231 provides additional support at the bend of the suspended section of the conveyor belt 10. The roller assembly 231 flexibly supports the conveyor belt 10, dividing the suspended section of the conveyor belt 10 into two shorter sections. This ensures stable operation of the conveyor belt 10 and reduces the risk of material spillage, thereby improving the operational reliability of the conveyor belt 10.

[0044] When the conveyor belt 10 is normally carrying material, the material's gravity causes the suspended section of the conveyor belt 10 to descend and land on the fixed rollers of the belt conveyor. Because the distance between the roller assembly 231 and the hinge support 210 is greater than the distance between the pinch roller 240 and the hinge support 210, the roller assembly 231 descends more rapidly than the pinch roller 240 when moving about the same fulcrum. As the roller assembly 231 and the pinch roller 240 descend, the vertical distance between them gradually increases. As the conveyor belt 10 travels over the roller assembly 231 under the action of gravity, it gradually separates from the pinch roller 240, creating a gap. This prevents the pinch roller 240 from abrading or squeezing the belt, creating a gap between the pinch roller 240 and the conveyor belt 10. This allows material with a cross-sectional width greater than the gap between the pinch rollers 240 to pass smoothly, thereby protecting the belt and reducing spillage. If the pinch roller 240 and the conveyor belt 10 remain connected, only material with a cross-sectional width less than the gap between the pinch rollers 240 can pass smoothly.

[0045] When the conveyor belt 10 moves up and down due to changes in force, the pinch roller 240 moves up and down synchronously, that is, the pinch roller 240 can swing up and down according to the size of the tensioning force of the conveyor belt 10, maintaining a predetermined pressure on the conveyor belt 10. When the equipment is started and stopped or the material changes greatly, causing the conveyor belt 10 to be tightened upward, the pressure on the pinch roller 240 remains basically unchanged, which can reduce the damage of the pinch roller 240 to the conveyor belt 10.

[0046] Reference Figure 1 In this embodiment, the flexible belt pressing device 20 further includes a pin 211, and the frame 220 and the hinge support 210 are swingably connected via the pin 211. The frame 220 is connected to the hinge support 210 welded to the vehicle frame 200 via the pin 211.

[0047] Reference Figure 1 as well as Figure 2 In this embodiment, the flexible belt pressing device 20 also includes a trough-type hanger 230, which is arranged below the first swinging end of the frame 220; the roller group 231 includes a first roller 232, a second roller 233 and a third roller 234 arranged in the trough-type hanger 230; the first roller 232, the second roller 233 and the third roller 234 are arranged in sequence along the width direction of the conveyor belt 10, the first roller 232 is inclined outward relative to the second roller 233, and the third roller 234 is inclined outward relative to the second roller 233; the first roller 232, the second roller 233 and the third roller 234 are jointly used to lift the conveyor belt 10.

[0048] Specifically, the second roller 233 is set horizontally, the first roller 232 is set obliquely downward from the upper left to the lower right of the second roller 233, and is connected to the second roller 233, and the third roller 234 is set obliquely from the upper right to the lower left of the second roller 233, and is connected to the second roller 233. The first roller 232, the second roller 233 and the third roller 234 form a concave surface that is concave downward.

[0049] The trough hanger 230 and pinch roller 240 are bolted to the frame 220, located above and below the conveyor belt. The first, second, and third rollers 232, 233, and 234 flexibly support the conveyor belt 10, creating a concave arc on the belt surface. This ensures stable operation of the conveyor belt 10 and prevents spillage. The first, second, and third rollers 232, 233, 234 support the conveyor belt 10 from below, maintaining a concave arc, ensuring stable operation of the belt and the material it carries.

[0050] Reference Figure 3 In this embodiment, the flexible belt pressing device 20 also includes a plurality of conveyor roller groups 270, which are arranged on the frame 200 in sequence along the length direction of the conveyor belt 10; one of the conveyor roller groups 270 is arranged below the belt pressing wheel 240 and can be used to lift the conveyor belt 10 below the belt pressing wheel 240.

[0051] When the conveyor belt 10 is separated from the pressure roller 240 under the action of the material and the gravity of the conveyor belt 10, the material is transported from the gap between the pressure roller 240 and the conveyor belt 10. At this time, the conveyor belt 10 under the pressure roller 240 is pressed down onto the conveying roller group 270 under the pressure roller 240. The conveying roller group 270 can support the material on the conveyor belt 10, further improving the transportation stability of the conveyor belt 10.

[0052] Reference Figure 1 、 Figure 3 as well as Figure 4 In this embodiment, the weight of the counterweight 250 is adjustable to adjust the force with which the pinch roller 240 presses down on the conveyor belt 10. By increasing or decreasing the weight of the counterweight 250, the pinch roller 240 can be adjusted to maintain an appropriate pressure on the conveyor belt 10, thereby improving the reliability and safety of the flexible pinch roller 20.

[0053] Reference Figure 1 、 Figure 3 as well as Figure 4In this embodiment, the torque exerted by the pinch roller 240 on the hinge support 210 is greater than the torque exerted by the counterweight 250 on the hinge support 210. The torque at the pinch roller 240 end is greater than that at the counterweight 250 end. This torque difference between the two ends ensures that the pinch roller 240 and the roller assembly 231 are in close contact with the surface of the conveyor belt 10 and exert a certain amount of pressure, ensuring that the conveyor belt 10 does not overhang and maintaining the groove-shaped concave arc surface of the roller assembly 231.

[0054] Reference Figure 1 、 Figure 3 as well as Figure 4 In this embodiment, the flexible belt-holding device 20 further includes a limiting mechanism 280. The limiting mechanism 280 is disposed on the vehicle frame 200 and is located below the frame 220. The limiting mechanism 280 is located between the belt-holding roller 240 and the hinge support 210. The limiting mechanism 280 is configured to abut against the frame 220 to prevent the first swing end of the frame 220 from swinging downward. The limiting mechanism 280 limits the lower limit position of the roller assembly 231 and the belt-holding roller 240 when the conveyor belt 10 is normally conveying material.

[0055] In this embodiment, the height of the limiting mechanism 280 is adjustable to adjust the gap between the pinch roller 240 and the conveyor belt 10 .

[0056] The height of the limiter mechanism 280 is adjustable. Adjusting the limiter mechanism 280 allows the pinch roller 240 to disengage from the conveyor belt 10 during normal material conveying, maintaining a certain distance between the pinch roller 240 and the conveyor belt 10 to prevent belt surface wear and facilitate material passage. Adjusting the limiter mechanism 280 allows the gap between the pinch roller 240 and the conveyor belt 10 to be adjusted to facilitate the smooth passage of different materials, thereby improving the reliability and safety of the flexible belt-holding device 20.

[0057] According to a flexible belt pressing device 20 provided in this embodiment, the working principle of the flexible belt pressing device 20 is:

[0058] Reference Figure 3When the conveyor belt 10 is running without load, the pressure roller 240 presses the conveyor belt 10 downward, but its torque is not enough to push the conveyor belt 10 to the lowest point. The size of this torque is adjusted by the counterweight 250. The purpose of this is that the straight tendency of the conveyor belt 10 at the turning point under the action of tension causes it to generate a larger reaction force with the pressure roller 240. Moreover, the larger the turning angle, the greater the force. The edge of the pressure roller 240 is more likely to cause pressure loss or damage to the conveyor belt 10. In order to avoid damage to the conveyor belt 10 or affecting its service life, the pressure is adjusted within an appropriate range. In this state, the conveyor belt 10 falls on the roller group 231 inside the trough hanger 230, stabilizing the conveyor belt 10 and forming an arc surface to facilitate material transportation. The pressure roller 240 presses the conveyor belt 10 at point b. At the moment the equipment is started, the conveyor belt 10 suddenly rises, and the pressure roller 240 moves upward synchronously, eliminating the damage to the conveyor belt 10 caused by the impact force.

[0059] Reference Figure 4 The material pushes the conveyor belt 10 downward, and the flexible belt pressing device 20 moves downward together with the conveyor belt 10 under the pressure of the conveyor belt 10 at point a. The conveyor belt 10 falls on the roller group 231 and runs. The belt pressing roller 240 reaches the limit position under the action of the limiting mechanism 280, and the conveyor belt 10 and the belt pressing roller 240 are out of contact and run.

[0060] The flexible belt pressing device 20 provided in this embodiment has at least the following advantages:

[0061] The roller group 231 always supports the conveyor belt 10 when it is empty, fully loaded or running with a small amount of material, which is beneficial to the stable operation of the conveyor belt 10. During the inevitable running period with a small amount of material, the material spilling phenomenon caused by the suspended vibration of the conveyor belt 10 is eliminated.

[0062] The conveyor belt 10 passes between the roller assembly 231 and the pinch roller 240. The pinch roller 240 acts on the conveyor belt 10 to press down on it, limiting the amount of overhang and shortening the overhanging section of the conveyor belt 10. The roller assembly 231 supports the conveyor belt 10 from below, ensuring stable operation of the conveyor belt 10 and the material it carries.

[0063] The conveyor belt 10 runs on the roller set 231 under the action of gravity and gradually separates from the pressure roller 240 and creates a gap, so that the pressure roller 240 no longer wears and squeezes the belt. When the cross-sectional width of the material is greater than the spacing between the pressure rollers 240, it can also pass smoothly, thereby achieving the purpose of protecting the belt and reducing material spillage.

[0064] When the conveyor belt 10 is subjected to a force change and moves up and down, the pinch roller 240 moves up and down synchronously, maintaining a predetermined pressure on the conveyor belt 10 and reducing damage to the conveyor belt 10 caused by the pinch roller 240 .

[0065] The embodiment of the present invention further provides a belt conveyor, which includes a ground belt conveyor 30 and a flexible belt pressing device 20 . The ground belt conveyor 30 is provided with a conveying belt 10 , and a roller assembly 231 and a belt pressing roller 240 are used to cooperate with the conveying belt 10 .

[0066] The flexible belt pressing device 20 can be used as a stacker-reclaimer incoming car or loading car. The basic principles and functions of the stacker-reclaimer incoming car and loading car are the same. The stacker-reclaimer incoming car transports materials to the stacker-reclaimer via the incoming car, where they are then stacked to a designated location via the onboard cantilever belt conveyor. The loading car carries materials to the loading car via a belt conveyor, where they are unloaded to a designated location through the movement of the loading car and the distribution hopper. The stacker-reclaimer incoming car is a working unit of the stacker-reclaimer, while the loading car is an independent process facility within the belt conveyor's conveying process.

[0067] The hinge support 210 and the limit mechanism 280 are arranged on the frame 200 of the stacker or the loading vehicle. The flexible belt pressing device 20 is used to eliminate the adverse effects of the conveyor belt 10 hanging in the stacker or the belt conveyor, and ensure the stable operation of the conveyor belt 10.

[0068] During the operation of the belt conveyor, a group of flexible grooved rollers 231 are added to the conveyor belt 10 at the suspended angle between the parallel section of the ground belt conveyor 30 and the rising section of the loading car, so as to increase the concave surface and stability of the conveyor belt 10. When loading is started and the material amount is small, material spillage is avoided, and spilled material is avoided from being carried to the head and tail rollers through the lower conveyor belt 10, causing the belt to deviate, be damaged, and other faults.

[0069] In this embodiment, the ground belt conveyor 30 includes a ground bracket 31 and multiple fixed roller groups 32, and the multiple fixed roller groups 32 are arranged on the ground bracket 31 in sequence; the flexible belt pressing device 20 also includes a walking wheel 260, and the frame 200 is arranged on the walking wheel 260, and the walking wheel 260 is used to drive the frame 200 to move above the ground belt conveyor 30.

[0070] Multiple fixed roller groups 32 are spaced from left to right. The running wheels 260 drive the frame 200 to move above the floor conveyor 30. As the conveyor belt 10 passes between the roller group 231 and the pinch roller 240 and begins to convey material, the pinch roller 240 exerts downward pressure on the conveyor belt 10, limiting its overhang and shortening the overhanging section. The roller group 231 supports the conveyor belt 10 from below, ensuring stable operation of the conveyor belt 10 and the material it carries.

[0071] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A flexible belt pressing device for cooperating with a conveyor belt (10), characterized in that: The flexible belt pressing device comprises: A vehicle frame (200), a hinge support (210), a machine frame (220), a roller assembly (231), a belt pressure roller (240), and a counterweight (250); The hinge support (210) is arranged on the vehicle frame (200), the frame (220) is swingably arranged on the hinge support (210), and the frame (220) forms a first swing end and a second swing end that can swing up and down relatively along the length direction of the conveyor belt (10); The roller group (231) and the belt-pressing roller (240) are arranged at intervals at the first swing end of the frame (220), and the roller group (231) is away from the hinge support (210) relative to the belt-pressing roller (240), and the roller group (231) is located obliquely below the belt-pressing roller (240). The roller group (231) is used to cooperate with the lower surface of the conveyor belt (10) to lift the conveyor belt (10), and the belt-pressing roller (240) is used to cooperate with the upper surface of the conveyor belt (10) to press down the conveyor belt (10); the counterweight (250) is arranged at the second swing end of the frame (220); The weight of the counterweight (250) is adjustable to adjust the force with which the belt-pressing wheel (240) presses down the conveyor belt (10); the torque of the belt-pressing wheel (240) on the hinge support (210) is greater than the torque of the counterweight (250) on the hinge support (210); The conveyor belt (10) passes between the roller group (231) and the belt pressing wheel (240), and the belt pressing wheel (240) exerts a downward pressure on the conveyor belt (10) on the conveyor belt (10), thereby limiting the suspension of the conveyor belt (10) and shortening the suspended section of the conveyor belt (10); The conveyor belt (10) runs on the roller group (231) under the action of gravity and gradually separates from the belt pressing wheel (240) to form a gap, so that the belt pressing wheel (240) no longer wears and squeezes the belt, and the material can pass smoothly even when the cross-sectional width is greater than the gap between the belt pressing wheels (240), thereby achieving the purpose of protecting the belt and reducing spillage of materials.

2. The flexible belt pressing device according to claim 1, characterized in that: The flexible belt pressing device further comprises a groove-shaped hanger (230), wherein the groove-shaped hanger (230) is arranged below the first swing end of the frame (220); The roller group (231) includes a first roller (232), a second roller (233) and a third roller (234) arranged in the trough-shaped hanger (230); the first roller (232), the second roller (233) and the third roller (234) are arranged in sequence along the width direction of the conveyor belt (10), the first roller (232) is inclined outward relative to the second roller (233), and the third roller (234) is inclined outward relative to the second roller (233); the first roller (232), the second roller (233) and the third roller (234) are used together to lift the conveyor belt (10).

3. The flexible belt pressing device according to claim 1, characterized in that: The flexible belt pressing device further comprises a plurality of conveying roller groups (270), wherein the plurality of conveying roller groups (270) are sequentially arranged on the vehicle frame (200) at intervals along the length direction of the conveying belt (10); One of the conveying roller groups (270) is arranged below the belt pressing wheel (240) and can be used to lift the conveying belt (10) below the belt pressing wheel (240).

4. The flexible belt pressing device according to any one of claims 1 to 3, characterized in that: The flexible belt pressing device further comprises a limiting mechanism (280), wherein the limiting mechanism (280) is arranged on the vehicle frame (200), and the limiting mechanism (280) is located below the frame (220), and the limiting mechanism (280) is located between the belt pressing wheel (240) and the hinge support (210), and the limiting mechanism (280) is used to abut against the frame (220) to prevent the first swing end of the frame (220) from swinging downward.

5. The flexible belt pressing device according to claim 4, characterized in that: The height of the limiting mechanism (280) is adjustable to adjust the gap between the pressure wheel (240) and the conveyor belt (10).

6. The flexible belt pressing device according to claim 1, characterized in that: The flexible belt pressing device further comprises a pin shaft (211), and the frame (220) and the hinge support (210) are swingably connected via the pin shaft (211).

7. A belt conveyor, characterized in that: The belt conveyor comprises a ground belt conveyor (30) and the flexible belt pressing device according to any one of claims 1 to 6, wherein the ground belt conveyor (30) is provided with the conveying belt (10), and the roller group (231) and the belt pressing wheel (240) are used to cooperate with the conveying belt (10).

8. The belt conveyor according to claim 7, characterized in that: The ground belt conveyor (30) comprises a ground support (31) and a plurality of fixed roller groups (32), wherein the plurality of fixed roller groups (32) are sequentially arranged at intervals on the ground support (31); The flexible belt pressing device further comprises a running wheel (260), the frame (200) is arranged on the running wheel (260), and the running wheel (260) is used to drive the frame (200) to move above the floor tape machine (30).

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