Pipe belt type conveyor

Abstract

The invention belongs to the technical field of material transportation equipment, and particularly relates to a pipe belt conveyor which comprises a head unloading section, a tail receiving section and a middle conveying section. The middle conveying section comprises a conveying belt supporting frame, and the conveying belt supporting frame is configured to support the conveying belt and enable the conveying belt to be kept in a circular tube shape; the conveying belt supporting frame comprises a pipe belt dragging wheel which is configured to support the conveying belt of the bearing section and maintain the round pipe shape of the conveying belt of the bearing section and the conveying belt of the return stroke section. The upper belt pressing wheel is configured to be matched with the pipe belt dragging wheel so as to maintain the round pipe shape of the bearing section conveying belt; and the lower belt supporting wheel is configured to support the return section conveying belt and is matched with the pipe belt supporting wheel to maintain the circular pipe shape of the return section conveying belt. The invention aims to solve the problems of high construction cost, time and labor waste in maintenance or replacement of a carrier roller and the like caused by poor sealing, easiness in material scattering, easiness in clamping stagnation of a conveying belt and complicated structure of an existing pipe belt conveyor.

Description

Technical Field

[0001] The present invention belongs to the technical field of material transportation equipment, and particularly relates to a pipe belt conveyor. Background Art

[0002] The pipe belt conveyor is an important branch of the traditional belt conveyor. It is mainly to avoid the serious environmental pollution caused by dust and material scattering during the transportation of the traditional open belt conveyor, which prompts the industry to seek a closed solution. The pipe belt conveyor forms an "O"-shaped cylindrical structure by rolling up and enclosing both sides of the flat conveyor belt, thus can well solve the above problems.

[0003] With the demand for the development of modern industry, the technology of the pipe belt conveyor has developed rapidly. Because it not only has the initial advantages of being closed, environmentally friendly and non-spilling, but also has the characteristics of long-distance transportation, building on complex terrains, climbing at large angles, turning horizontally at small angles, and combining various layout forms; it can also meet the requirements of low investment and short construction period. Therefore, the technical improvement of the pipe belt conveyor is the future development direction of continuously transporting bulk materials.

[0004] In the prior art, a pipe belt conveyor generally includes a tail receiving section, a head discharging section and a middle conveying section. The conveyor belts connected end to end run reciprocally between these three positions to convey materials from the tail to the head. Among them, the tail receiving section includes: a feeding device for loading materials onto the conveyor belt; and a conveyor belt shape conversion device composed of 4-5 sets of conversion mechanisms, which are arranged in sequence in the tail receiving section and are used to convert the conveyor belt of the load-carrying section from a flat shape to a round tube shape, and convert the conveyor belt of the no-load return section from a round tube shape to a flat shape; the head discharging section includes: a driving device for providing operating power for the whole conveyor; a discharging device for discharging the materials on the conveyor belt to the material site; a tensioning device for adjusting the tension of the whole conveyor belt; and a conveyor belt shape conversion device, whose structure is similar to that of the tail conversion structure, and is used to convert the conveyor belt of the load-carrying section from a round tube shape to a flat shape, and convert the conveyor belt of the no-load return section from a flat shape to a round tube shape; the middle conveying section includes several sets of conveyor belt support frames for supporting the conveyor belts of the load-carrying section and the return section, and maintaining the round tube shape of the conveyor belt to prevent material spillage.

[0005] The conveyor belt support frames in the middle conveying section of the existing pipe belt conveyor usually adopt a hexagonal idler structure (such as Figure 1As shown in the figure, it includes upper and lower hexagonal idler groups (each idler group consists of 6 idlers arranged in a hexagon) and an idler group support. The upper hexagonal idler group is used to support the conveyor belt in the loading section, and the lower hexagonal idler is used to support the conveyor belt in the return section. For the conveyor belt support frame with this structure, since the idlers in contact with the conveyor belt are hexagonal instead of round tube-shaped that matches the conveyor belt, the interface of the conveyor belt cannot be well sealed, so it is easy to cause material spillage; and when multiple idlers support the conveyor belt, it is inevitable that the force is uneven, resulting in serious wear and rotation jamming of some of the idlers, and then causing the conveyor belt to jam, affecting the operation of the overall conveyor; in addition, the hexagonal idler has a complex structure. The conveying distance of the conveyor is usually several hundred meters at least and dozens of kilometers at most. Usually, a set of conveyor belt support frames need to be set every 0.5m - 1m, and a corridor needs to be built around for personnel maintenance and reducing contact with the external environment. Therefore, the required cost is very high, and due to the complex structure, it is time-consuming and laborious to repair or replace the idlers, affecting the material transportation process.

[0006] In view of the above situation, there is an urgent need for a new type of pipe belt conveyor, which can solve the problems existing in the conveyor belt support frame in the middle conveying section of the existing pipe belt conveyor through structural optimization.

[0007] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0008] The present invention provides a pipe belt conveyor, which replaces the hexagonal idler structure in the conveyor belt support frame in the middle conveying section with a structure in which a pipe belt pulley cooperates with an upper pressing belt pulley and a lower supporting belt pulley, solving the problems of easy material spillage due to poor sealing of the existing pipe belt conveyor, easy jamming of the conveyor belt, and high construction cost and time-consuming and laborious repair or replacement of idlers caused by complex structure; the specific content of the invention is as follows:

[0009] A pipe belt conveyor includes:

[0010] A head discharging section, arranged at one end of the conveyor, configured to drive the conveyor to operate, dump the material on the conveyor belt to the material site, adjust the tension of the overall conveyor belt, and convert the conveyor belt between a round tube shape and a flat shape;

[0011] A tail receiving section, arranged at the other end of the conveyor, configured to load the material onto the conveyor belt, and convert the conveyor belt between a round tube shape and a flat shape;

[0012] and a middle conveying section, arranged in the middle of the conveyor, including several sets of conveyor belt support frames arranged in sequence along the conveyor, configured to support the conveyor belt and maintain the conveyor belt in a circular tube shape;

[0013] The conveyor belt support frame includes:

[0014] A pipe belt idler, arranged in the middle of the conveyor belt support frame, configured to support the conveyor belt in the load-carrying section and maintain the circular tube shape of the conveyor belt in the load-carrying section and the return section;

[0015] An upper pressing idler, arranged at the upper part of the conveyor belt support frame, configured to cooperate with the pipe belt idler to maintain the circular tube shape of the conveyor belt in the load-carrying section;

[0016] A lower supporting idler, arranged at the lower part of the conveyor belt support frame, configured to support the conveyor belt in the return section and cooperate with the pipe belt idler to maintain the circular tube shape of the conveyor belt in the return section.

[0017] Further, the pipe belt idler includes:

[0018] A first rotating roller, fixed to the structural member of the middle conveying section corridor through a support, and capable of rotating on the support;

[0019] A first arc-shaped shaping belt, in a hub shape, sleeved on the first rotating roller, and the contact surface with the conveyor belt is arc-shaped;

[0020] And a first support plate, in a plate shape, arranged on both sides of the first arc-shaped shaping belt, configured to support the first arc-shaped shaping belt to maintain the arc shape of the contact surface between the first arc-shaped shaping belt and the conveyor belt.

[0021] Further, the central parts of the first arc-shaped shaping belt and the first support plate are fixedly connected to the first rotating roller through a bushing.

[0022] Further, the upper pressing idler and the lower supporting idler have the same structure, including:

[0023] A second rotating roller, fixed between the structural members on both sides of the middle conveying section corridor through a support, and capable of rotating on the support;

[0024] A second arc-shaped shaping belt, in a hub shape, sleeved on the second rotating roller, and the contact surface with the conveyor belt is arc-shaped;

[0025] And a second support plate, in a plate shape, arranged on both sides of the second arc-shaped shaping belt, configured to support the second arc-shaped shaping belt to maintain the arc shape of the contact surface between the second arc-shaped shaping belt and the conveyor belt.

[0026] Further, the central parts of the second arc shaping belt and the second support plate are fixedly connected to the second roller through a bushing.

[0027] Further, the middle conveying section includes a horizontal arc section; the conveyor belt support frame arranged on the horizontal arc section is provided with two pipe belt idlers arranged up and down, an upper pressing belt wheel arranged on the side of the upper pipe belt idler close to the center of the arc, and a lower supporting belt wheel arranged on the side of the lower pipe belt idler close to the center of the arc; the second arc shaping belts of the upper pressing belt wheel and the lower supporting belt wheel respectively form a circular channel with the same shape as the conveyor belt with the upper first arc shaping belt and the lower first arc shaping belt.

[0028] Further, the middle conveying section further includes a slope arc section; the conveyor belt support frame arranged on the slope arc section is provided with one pipe belt idler, an upper pressing belt wheel arranged above the pipe belt idler, and a lower supporting belt wheel arranged below the pipe belt idler; an included angle inclined inward to the arc is formed between the upper pressing belt wheel, the pipe belt idler and the center line above the lower supporting belt wheel and the vertical direction; the angle of the included angle is equal to the spiral rising angle or the spiral falling angle of the conveyor on the slope arc section; the second arc shaping belts of the upper pressing belt wheel and the lower supporting belt wheel and the first arc shaping belt form a circular channel with the same shape as the conveyor belt.

[0029] Further, the bushing is connected to the first roller or the second roller through a driving key.

[0030] Further, a photovoltaic panel is arranged on the top of the corridor of each conveyor belt support frame, and an intelligent charge and discharge control system electrically connected to the photovoltaic panel is arranged inside.

[0031] Further, the pipe belt idler further includes a driving part; the output end of the driving part is connected to the first roller and is electrically connected to the intelligent charge and discharge control system.

[0032] Compared with the prior art, the technical effects achieved by the present invention are as follows:

[0033] 1. This technical solution abandons the traditional hexagonal roller structure of the conveyor belt support frame, adopts a structure in which the pipe belt idler is matched with the upper pressing belt wheel and the lower supporting belt wheel, and forms a circular channel matching the circular tube shape of the conveyor belt on the load-bearing section and the return section of the conveyor belt respectively; effectively reduces the probability of easy material scattering, easy belt jamming and easy damage of the existing pipe belt conveyor, and has a simple structure, which can reduce the construction cost and facilitate subsequent maintenance and replacement of parts;

[0034] 2. Set up pipe belt idlers to enable a single roller to cooperate with both the load-carrying section and the return section of the conveyor belt, facilitating the subsequent installation of independent drive devices for each roller, and using photovoltaic power supply to provide operating power for the overall pipe belt conveyor, effectively reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of the conveyor belt support frame of a pipe belt conveyor in the prior art, where Figure 1 A is a schematic structural diagram of a seamless hexagonal idler group, Figure 1 B is a schematic structural diagram of the idler arrangement with 3 idlers in the front and 3 idlers in the rear;

[0036] Figure 2 It is a schematic overall structural diagram of the pipe belt conveyor of the present invention, where Figure 2 A is a front view, Figure 2 B is a top view;

[0037] Figure 3 It is a schematic structural diagram of the conveyor belt support frame of the pipe belt conveyor of the present invention;

[0038] Figure 4 It is a schematic structural diagram of the pipe belt idler of the pipe belt conveyor of the present invention, where Figure 4 A is a front view, Figure 4 B is a left view;

[0039] Figure 5 It is a schematic structural diagram of the assembly of the first roller and the structural member of the pipe belt conveyor of the present invention, where Figure 5 A is a front view, Figure 5 B is a left view, Figure 5 C is a top view;

[0040] Figure 6 It is a schematic structural diagram of the first roller of the pipe belt conveyor of the present invention;

[0041] Figure 7 It is a schematic structural diagram of the upper belt pressing wheel (lower belt supporting wheel) of the pipe belt conveyor of the present invention, where Figure 7 A is a front view, Figure 7 B is a left view;

[0042] Figure 8 It is a schematic structural diagram of the conveyor belt support frame of the pipe belt conveyor of the present invention in the horizontal straight section or the slope straight section Figure Ⅰ ;

[0043] Figure 9 It is a schematic structural diagram of the conveyor belt support frame of the pipe belt conveyor of the present invention in the horizontal straight section or the slope straight section Figure Ⅱ ;

[0044] Figure 10Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the horizontal straight section or the slope straight section Figure Ⅲ ;

[0045] Figure 11 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the horizontal straight section or the slope straight section Figure Ⅳ ;

[0046] Figure 12 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the horizontal arc section Figure Ⅰ ;

[0047] Figure 13 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the horizontal arc section Figure Ⅱ ;

[0048] Figure 14 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the horizontal arc section Figure Ⅲ ;

[0049] Figure 15 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the horizontal arc section Figure Ⅳ ;

[0050] Figure 16 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the slope arc section Figure Ⅰ ;

[0051] Figure 17 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the slope arc section Figure Ⅱ ;

[0052] Figure 18 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the slope arc section Figure Ⅲ ;

[0053] Figure 19 Schematic diagram of the conveyor belt support structure of the pipe belt conveyor of the present invention in the slope arc section Figure Ⅳ ;

[0054] Figure 20 Schematic diagram of the installation of the drive part of the pipe belt conveyor of the present invention;

[0055] Figure 21 Framework diagram of the intelligent charge and discharge control system of the pipe belt conveyor of the present invention.

[0056] Explanation of the main reference numerals:

[0057] 1 - Head discharging section, 2 - Tail receiving section, 3 - Middle conveying section, 301 - Conveyor belt support frame, 302 - Pipe belt idler, 3021 - First rotating roller, 3022 - First arc-shaped sizing belt, 3023 - First support plate, 3024 - Bushing, 3025 - Driving key, 3026 - Rubberized layer, 303 - Upper pressure idler, 3031 - Second rotating roller, 3032 - Second arc-shaped sizing belt, 3033 - Second support plate, 304 - Lower supporting idler, 305 - Support, 306 - Corridor, 307 - Horizontal straight section, 308 - Slope straight section, 309 - Horizontal arc section, 310 - Slope arc section, 311 - Included angle, 312 - Bearing, 313 - Structural member, 4 - Photovoltaic panel, 5 - Driving part, 6 - Hexagonal idler group, 601 - Idler, 7 - Idler group support, 8 - Load-bearing section conveyor belt, 9 - Return section conveyor belt, 10 - Material. Detailed implementation manners

[0058] Unless otherwise clearly stated, throughout the specification and claims, the term "comprise" or its variations such as "comprises" or "including" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0059] The technical solutions of the present invention are illustrated by the following specific embodiments. It should be understood that one or more steps mentioned in the present invention do not exclude the existence of other methods and steps before and after the combined steps, or other methods and steps can be inserted between these clearly mentioned steps. It should also be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. Unless otherwise specified, the numbers of each method step are only for the purpose of identifying each method step, rather than limiting the arrangement order of each method or limiting the implementation scope of the present invention. The change or adjustment of its relative relationship, under the condition of no substantial change in technical content, can also be regarded as the scope where the present invention can be implemented.

[0060] There is no specific limitation on the sources of the raw materials and instruments used in the embodiments, and they can be purchased in the market or prepared according to the conventional methods well-known to those skilled in the art.

[0061] Please refer to Figures 1 to 21 the content shown, so as to better understand the specific structure of the present invention. As Figure 2 shown, a pipe belt conveyor includes:

[0062] The head discharging section 1, arranged at one end of the conveyor, is configured to drive the conveyor to operate, dump the material 10 on the conveyor belt to the material site, adjust the tension of the overall conveyor belt, and convert the conveyor belt between the circular tube shape and the planar shape;

[0063] The tail loading section 2 is arranged at the other end of the conveyor, and is configured to load the material 10 onto the conveyor belt and convert the conveyor belt between a circular tube shape and a planar shape;

[0064] and the middle conveying section 3 is arranged in the middle of the conveyor, and includes a plurality of sets of conveyor belt support frames 301 arranged in sequence along the conveyor, and is configured to support the conveyor belt and maintain the circular tube shape of the conveyor belt;

[0065] As Figure 3 shown, the conveyor belt support frame 301 includes:

[0066] The pipe belt idler 302 is arranged in the middle of the conveyor belt support frame 301, and is configured to support the conveyor belt of the load-carrying section and maintain the circular tube shape of the load-carrying section conveyor belt 8 and the return section conveyor belt 9;

[0067] The upper pressing idler 303 is arranged at the upper part of the conveyor belt support frame 301, and is configured to cooperate with the pipe belt idler 302 to maintain the circular tube shape of the load-carrying section conveyor belt 8;

[0068] The lower supporting idler 304 is arranged at the lower part of the conveyor belt support frame 301, and is configured to support the return section conveyor belt 9 and cooperate with the pipe belt idler 302 to maintain the circular tube shape of the return section conveyor belt 9.

[0069] It should be noted that the head unloading section 1 is provided with a driving device, a unloading device, a tensioning device and a conveyor belt shape conversion device to achieve the above functions; the tail loading section 2 is provided with a feeding device and a conveyor belt shape conversion device to achieve the above functions; in the present invention, both the head unloading section 1 and the tail loading section 2 preferably adopt the equipment in the prior art, as long as the corresponding functions can be achieved, and there is no limitation here.

[0070] In specific implementation, the present invention abandons the traditional hexagonal idler group 6 structure of the conveyor belt support frame 301, and adopts a structure in which the pipe belt idler 302 cooperates with the upper pressing idler 303 and the lower supporting idler 304 to form circular channels matching the circular tube shape of the conveyor belt at the load-carrying section and the return section of the conveyor belt respectively; effectively reducing the probability of material scattering, belt jamming and damage of the existing pipe belt conveyor, and the structure is simple, which can reduce the construction cost and facilitate subsequent maintenance and replacement of parts; the pipe belt idler 302 is provided to enable one rotating roller to cooperate with both the load-carrying section and the return section of the conveyor belt at the same time, which is convenient for installing an independent driving device for each rotating roller subsequently, and photovoltaic power supply is adopted to provide operating power for the overall pipe belt conveyor, effectively reducing energy consumption.

[0071] In the embodiment provided by the present invention, as Figures 4 to 6 shown, the pipe belt idler 302 includes:

[0072] The first rotating roller 3021 is fixed on the structural member 313 of the aisle 306 of the middle conveying section 3 through the support 305 and can rotate on the support 305;

[0073] The first arc shaping belt 3022 is of a hub-shaped structure, sleeved on the first rotating roller 3021, and the contact surface with the conveyor belt is arc-shaped;

[0074] And the first support plate 3023 is of a plate-shaped structure, arranged on both sides of the first arc shaping belt 3022, and is configured to support the first arc shaping belt 3022 to maintain the arc shape of the contact surface of the first arc shaping belt 3022 with the conveyor belt; the central parts of the first arc shaping belt 3022 and the first support plate 3023 are fixedly connected to the first rotating roller 3021 through the bushing 3024; the bushing 3024 is connected to the first rotating roller 3021 through the transmission key 3025.

[0075] It should be noted that the aisle 306 is a conveying corridor built in the middle conveying section 3, providing basic support for several conveyor belt support frames 301, supported on the ground through brackets at the bottom, and internally fixed with steel structural members 313; covering the aisle 306 with a ceiling can protect the conveyor belt from wind and rain and reduce interference from the external environment, and is also convenient for maintenance personnel to pass through.

[0076] It should be noted that the middle conveying section 3 is usually built according to the terrain. The middle conveying section 3 in a flat and unobstructed area is a horizontal straight section 307; the middle conveying section 3 on a hillside terrain without obstacles is a slope straight section 308; when encountering obstacles such as buildings or trees on flat ground, the middle conveying section 3 is a horizontal arc section 309 (to bypass the obstacles); when encountering terrains such as hillsides, the middle conveying section 3 is a slope arc section 310 (including uphill arc sections and downhill arc sections).

[0077] It should be noted that the first rotating roller 3021 is made of metal material, preferably a series of steel materials, fixed at both ends on the structural member 313 of the aisle 306 through the support 305, and supported on the support 305 through the bearing 312.

[0078] It should be noted that the first arc shaping belt 3022 can be made of metal materials such as steel or aluminum alloy, or non-metal materials such as PVC or fiberglass. The present invention preferably uses a series of steel materials, and the surface in contact with the conveyor belt can be subjected to rubber coating or glue injection treatment to form a rubber coating layer 3026 to improve wear resistance; the arc dimension of the first arc shaping belt 3022 can be customized according to the shape and size of the conveyor belt round tube actually used to provide better wrapping.

[0079] It should be noted that the first support plate 3023 can be made of the same material as the first arc-shaped shaping belt 3022. Since it has no contact with the conveyor belt, it does not need to be rubber-coated or injected with glue. The inner surface of the first support plate 3023 is fixedly connected to the outer side of the first arc-shaped shaping belt 3022. It is preferably fixed by riveting or welding and can be made into a circular, square, polygonal or other symmetric plate-shaped structure. The present invention preferably uses a circular plate-shaped structure. The first support plate 3023 is fixed on both sides of the first arc-shaped shaping belt 3022, which can provide sufficient support force for the sides of the first arc-shaped shaping belt 3022 to maintain the arc shape of the first arc-shaped shaping belt 3022 and prevent deformation under the pressure of the material 10.

[0080] It should be noted that the bushing 3024 connects and fixes the middle part of the first support plate 3023 and the first arc-shaped shaping belt 3022, preferably by welding or riveting. The bushing 3024 is sleeved on the first roller 3021, and the rotational torque is transmitted through the transmission key 3025, and the bushing 3024 is axially positioned by the positioning lock rings at both ends.

[0081] In specific implementation, the pipe belt idler 302 can keep the lower part of the load-bearing section of the conveyor belt and the upper part of the return section of the conveyor belt in a complete and stable circular pipe shape through the first arc-shaped shaping belt 3022 and the first support plate 3023, providing favorable conditions for solving problems such as material scattering and belt jamming.

[0082] In one embodiment, as Figure 7 shown, the upper idler pulley 303 and the lower idler pulley 304 have the same structure, including:

[0083] A second roller 3031, fixed between the structural members 313 on both sides of the corridor 306 of the middle conveying section 3 through the support 305, and capable of rotating on the support 305;

[0084] A second arc-shaped shaping belt 3032, which is a hub-shaped structure, sleeved on the second roller 3031, and the contact surface with the conveyor belt is arc-shaped;

[0085] And a second support plate 3033, which is a plate-shaped structure, arranged on both sides of the second arc-shaped shaping belt 3032, and is configured to support the second arc-shaped shaping belt 3032 to maintain the arc shape of the contact surface between the second arc-shaped shaping belt 3032 and the conveyor belt. The central parts of the second arc-shaped shaping belt 3032 and the second support plate 3033 are fixedly connected to the second roller 3031 through the bushing 3024. The bushing 3024 is connected to the second roller 3031 through the transmission key 3025.

[0086] It should be noted that the upper pressure belt pulley 303 and the lower supporting belt pulley 304 have the same structure but different layout positions. The upper pressure belt pulley 303 uses the arc shape below the second arc-shaped shaping belt 3032 to cooperate with the arc shape above the first arc-shaped shaping belt 3022 to form a circular channel with the same shape as the conveyor belt's round tube. Its function is to press the upper half of the conveyor belt in the loading section to prevent the opening of the conveyor belt joint and material spillage. The lower supporting belt pulley 304 uses the arc shape above the second arc-shaped shaping belt 3032 to cooperate with the arc shape below the first arc-shaped shaping belt 3022 to form a circular channel with the same shape as the conveyor belt's round tube. Its function is to press the lower half of the conveyor belt in the return section to prevent the opening of the conveyor belt joint.

[0087] It should be noted that the upper pressure belt pulley 303 and the lower supporting belt pulley 304 are made of the same material and have the same connection method. The second roller 3031 is made of metal material, preferably a series of steel materials, and both ends are fixed on the structural member 313 of the corridor 306 through the support 305 and supported by the bearing 312 on the support 305.

[0088] It should be noted that the second arc-shaped shaping belt 3032 can be made of metal materials such as steel or aluminum alloy, or non-metal materials such as PVC or fiberglass. In the present invention, a series of steel materials are preferably used. The surface in contact with the conveyor belt can be subjected to rubber coating or glue injection treatment to form a rubber coating layer 3026 to improve wear resistance. The arc dimension of the second arc-shaped shaping belt 3032 can be customized according to the shape and size of the actual conveyor belt round tube to provide better wrapping performance.

[0089] It should be noted that the second support plate 3033 can be made of the same material as the second arc-shaped shaping belt 3032. Since it has no contact with the conveyor belt, it does not need to be rubber-coated or glue-injected. The inner surface of the second support plate 3033 is fixedly connected to the outer side of the second arc-shaped shaping belt 3032, preferably fixed by riveting or welding, and can be made into a circular, square, polygonal or other symmetric plate-shaped structure. In the present invention, a circular plate-shaped structure is preferably used. The second support plate 3033 is fixed on both sides of the second arc-shaped shaping belt 3032 to provide sufficient support force for both sides of the second arc-shaped shaping belt 3032 to maintain the arc shape of the second arc-shaped shaping belt 3032 and prevent deformation under the pressure of the material 10.

[0090] It should be noted that the bushing 3024 connects and fixes the middle part of the second support plate 3033 and the second arc-shaped shaping belt 3032, preferably fixed by welding or riveting. The bushing 3024 is sleeved on the second roller 3031 to transmit the rotational torque through the transmission key 3025, and is axially positioned by the positioning lock ring at both ends of the bushing 3024.

[0091] It should be noted that in the prior art, for the idler support 7 with the hexagonal idler set 6 structure, during the process of conveying the material 10, especially the idlers in the loading section are unevenly stressed under the action of the gravity of the material 10. For example, in the horizontal straight section 307, the lowest idler 601 in the loading section of the hexagonal idler structure is under the greatest pressure and is most prone to wear. Only by increasing its own structural size can the wear be reduced, but this will cause asymmetry in the overall structure, or by increasing the size of all idlers, the cost will increase. However, for the conveyor belt support frame 301 provided by the present invention, the pressure of the material 10 is concentrated on the pipe belt idler 302, especially the first idler 3021 is under the greatest stress. Therefore, only by increasing the structural size of the pipe belt idler 302 can the wear of the components be reduced, thereby reducing the production losses caused by belt jamming, shutdown for maintenance, component replacement, etc. due to component damage.

[0092] In specific implementation, the pipe belt idler 302 cooperates with the upper pressing belt wheel 303 and the lower supporting belt wheel 304 to form a closed circular channel that matches the circular tube shape of the conveyor belt, which can better maintain the circular tube shape of the conveyor belt and effectively prevent the occurrence of material scattering. By utilizing its unique structural advantages, the risk of belt jamming and component damage caused by uneven stress is reduced, which is beneficial to the safe, stable and smooth progress of production.

[0093] In the embodiment provided by the present invention, as Figure 12 shown, the middle conveying section 3 includes a horizontal arc section 309; the conveyor belt support frame 301 arranged on the horizontal arc section 309 is provided with 2 pipe belt idlers 302 arranged up and down, as well as the upper pressing belt wheel 303 arranged on the side of the upper pipe belt idler 302 close to the center of the arc, and the lower supporting belt wheel 304 arranged on the side of the lower pipe belt idler 302 close to the center of the arc; the second arc shaping belt 3032 of the upper pressing belt wheel 303 and the lower supporting belt wheel 304 respectively forms a circular channel with the same shape as the conveyor belt with the first arc shaping belt 3022 above and the first arc shaping belt 3022 below.

[0094] It should be noted that the horizontal arc section 309 is a horizontal corridor 306 with a certain radian, and its purpose is to bypass the above-ground obstacles in the plain area, such as buildings, trees, large rocks or small hillocks, etc. When the conveyor belt runs to the horizontal arc section 309, the acting forces of the tensioning device at the head discharging section 1 on the inner and outer sides are different. The tension force received by the outer side due to the increased length is greater than that of the inner side, and the pressure of the material 10 under the outward centrifugal action will also cause the force on the outer side of the conveyor belt to increase. This situation becomes more obvious as the radian increases. When the conveyor belt turns with a radian in the prior art, the forces on the inner and outer sides are uneven, which will cause the outer idler to be subjected to greater force and be easily worn, and the increased force on the outer side of the conveyor belt will pull open the joint and cause material scattering. In the technical solution provided by the present invention, two horizontally arranged pipe belt carrier rollers 302 are provided on the horizontal arc section 309, and the upper pressure belt roller 303 and the lower supporting belt roller 304 are both arranged on the inner side close to the radian center of the two pipe belt carrier rollers 302. When the force on the outer side of the conveyor belt increases, it is all borne by the first idler 3021, and the increased force can be completely borne structurally, and the circular tube shape of the conveyor belt can be maintained without deformation, thereby preventing situations such as material scattering, belt jamming, and wear.

[0095] In specific implementation, the horizontal arc section 309 adopts the above structure, which can reduce the influence of the outward force on the conveyor belt and further ensure the smooth progress of production and transportation.

[0096] In one embodiment, as Figure 16 shown, the middle conveying section 3 further includes a slope arc section 310; one of the pipe belt carrier rollers 302 is provided on the conveyor belt support frame 301 arranged on the slope arc section 310, the upper pressure belt roller 303 arranged above the pipe belt carrier roller 302, and the lower supporting belt roller 304 arranged below the pipe belt carrier roller 302; an included angle 311 that inclines towards the inner side of the radian is formed between the upper side of the center point connection line of the upper pressure belt roller 303, the pipe belt carrier roller 302 and the lower supporting belt roller 304 and the vertical direction; the angle of the included angle 311 is equal to the spiral rising angle or the spiral falling angle of the conveyor on the slope arc section 310; the second circular arc shaping belt 3032 of the upper pressure belt roller 303 and the lower supporting belt roller 304 forms a circular channel with the same shape as the conveyor belt with the first circular arc shaping belt 3022.

[0097] It should be noted that the slope arc section 310 is a corridor 306 with a certain slope and radian, aiming to bypass the above-ground obstacles in the hilly area, such as buildings, trees, large rocks or small hillocks, etc.; when the conveyor belt runs to the slope arc section 310, it takes on a spiral upward or spiral downward form, which also causes different forces exerted by the tensioning device at the head discharge section 1 on the inner and outer sides of the conveyor belt. The outer side is subjected to a greater tension force due to the increased length, which is greater than that of the inner side. Moreover, under the outward spiral centrifugal force, the pressure of the material 10 will also cause an increase in the force on the outer side of the conveyor belt. This situation becomes more obvious as the slope and radian increase; in the prior art, when the conveyor belt turns at the slope arc, the forces on the inner and outer sides are uneven, which will also lead to an increase in the force on the outer side rollers, making them prone to wear. In addition, the increase in the force on the outer side of the conveyor belt will pull open the joint, resulting in material scattering; in the technical solution provided by the present invention, one transversely arranged pipe belt idler 302 is provided at the slope arc section 310, and an included angle 311 that inclines towards the inner side of the radian is formed between the upper center line connecting the center points of the upper pressing idler 303, the pipe belt idler 302 and the lower supporting idler 304 and the vertical direction; the angle of the included angle 311 is equal to the spiral upward angle or spiral downward angle of the conveyor at the slope arc section 310 (since the direction of the centripetal force caused by the spiral upward or downward forms an included angle with the horizontal direction, that is, the spiral upward angle or spiral downward angle); when the force on the outer side of the conveyor belt increases, since the first roller 3021 is inclined, its outer end can bear a greater force, and the circular tube shape of the conveyor belt can be maintained without deformation, thereby preventing situations such as material scattering, belt jamming, and wear from occurring.

[0098] In specific implementation, the slope arc section 310 adopts the above structure, which can reduce the influence of the outward force on the conveyor belt and further ensure the smooth progress of production and transportation.

[0099] In the implementation manner provided by the present invention, as Figures 8 to 19 shown, a photovoltaic panel 4 is provided on the top of the corridor 306 of each conveyor belt support frame 301, and an intelligent charge and discharge control system electrically connected to the photovoltaic panel 4 is provided inside; as Figure 20 shown, the pipe belt idler 302 further includes a driving part 5; the output end of the driving part 5 is connected to the first roller 3021 and is electrically connected to the intelligent charge and discharge control system.

[0100] It should be noted that the driving part 5 is preferably a speed-regulating motor; the output shaft of the motor is the output end of the driving part 5, which can drive the roller to rotate, and then drive the carrying section and the return section of the conveyor belt to rotate in opposite directions.

[0101] It should be noted that, as Figure 21As shown, the intelligent charge and discharge control system is a prior art, including a charge and discharge controller, an energy storage battery, sensors, LED lighting, an external power supply, and an inverter. All of them are preferably devices in the prior art and can achieve intelligent charge and discharge control. When the weather is sunny, the photovoltaic panel 4 powers the driving part 5 and stores the excess electric energy in the energy storage battery. When it is cloudy or at night, the energy storage battery can power the driving part 5 and the lighting equipment, or the external power supply can supply power through the inverter.

[0102] It should be noted that in the corresponding middle conveying section 3, the corridor 306 structure can be built in any structure such as a horizontal straight section 307, a slope straight section 308, a slope arc section 310, and a horizontal arc section 309. Figures 8 to 19 where Figures 8 to 11 the structure is applicable to the horizontal straight section 307 and the slope straight section 308; Figures 12 to 15 the structure is applicable to the horizontal arc section 309; Figures 16 to 19 the structure is applicable to the slope arc section 310; Figure 11 and Figure 15 and Figure 19 the structure is suitable for important occasions where the corridor 306 needs to be fully enclosed. The structures shown in other figures are simple in construction and low in cost. The specific structure to be adopted can be determined according to the actual situation on site.

[0103] It should be noted that the plate used for enclosing the corridor 306 of the present invention can preferably be replaced by the photovoltaic panel 4, which can not only block wind, rain, and snow, but also generate electricity using light energy.

[0104] In specific implementation, since the pipe belt conveyor has a long conveying distance and is composed of several transport lines, the corridor 306 structure can serve as the support for the conveyor equipment and is also a good support for the photovoltaic panel 4. At the same time, the photovoltaic panel 4 can also replace the enclosing material of the corridor 306, saving the land for building a separate photovoltaic power generation facility and enabling the comprehensive utilization of material 10 transportation and power generation, achieving immeasurable efficiency. By adopting independent roller drive, the speed control motor of the roller of each conveyor belt support frame 301 can be controlled separately according to the actual situation, which not only increases the overall transmission driving force but also effectively reduces the energy consumption cost.

[0105] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A pipe belt conveyor, characterized in that, Comprising: A head discharging section, arranged at one end of the conveyor, configured to drive the conveyor to operate, dump the materials on the conveyor belt to the material site, adjust the tension of the overall conveyor belt, and convert the conveyor belt between a circular tube shape and a planar shape; A tail receiving section, arranged at the other end of the conveyor, configured to load materials onto the conveyor belt, and convert the conveyor belt between a circular tube shape and a planar shape; And a middle conveying section, arranged in the middle of the conveyor, including a number of sets of conveyor belt support frames arranged in sequence along the conveyor, configured to support the conveyor belt and maintain the circular tube shape of the conveyor belt; The conveyor belt support frame includes: A pipe belt idler, arranged in the middle of the conveyor belt support frame, configured to support the conveyor belt of the load-carrying section and maintain the circular tube shape of the conveyor belt of the load-carrying section and the return section; An upper pressing idler, arranged on the upper part of the conveyor belt support frame, configured to cooperate with the pipe belt idler to maintain the circular tube shape of the conveyor belt of the load-carrying section; A lower supporting idler, arranged on the lower part of the conveyor belt support frame, configured to support the conveyor belt of the return section, and cooperate with the pipe belt idler to maintain the circular tube shape of the conveyor belt of the return section.

2. The pipe belt conveyor according to claim 1, characterized in that, The pipe belt idler includes: A first roller, fixed to the structural member of the middle conveying section corridor through a support, and capable of rotating on the support; A first arc-shaped shaping belt, in a hub-shaped structure, sleeved on the first roller, and the contact surface with the conveyor belt is arc-shaped; And a first support plate, in a plate-shaped structure, arranged on both sides of the first arc-shaped shaping belt, configured to support the first arc-shaped shaping belt to maintain the arc shape of the contact surface between the first arc-shaped shaping belt and the conveyor belt.

3. The pipe belt conveyor according to claim 2, characterized in that, The central parts of the first arc-shaped shaping belt and the first support plate are fixedly connected to the first roller through a bushing.

4. The pipe belt conveyor according to claim 3, characterized in that, The upper pressing idler and the lower supporting idler have the same structure, including: A second roller, fixed between the structural members on both sides of the middle conveying section corridor through a support, and capable of rotating on the support; A second arc-shaped shaping belt, in a hub-shaped structure, sleeved on the second roller, and the contact surface with the conveyor belt is arc-shaped; And a second support plate, in a plate-shaped structure, arranged on both sides of the second arc-shaped shaping belt, configured to support the second arc-shaped shaping belt to maintain the arc shape of the contact surface between the second arc-shaped shaping belt and the conveyor belt.

5. The pipe belt conveyor according to claim 4, wherein, The central parts of the second arc-shaped shaping belt and the second support plate are fixedly connected to the second roller through the bushing.

6. The pipe belt conveyor according to claim 5, wherein, The middle conveying section includes a horizontal arc section; there are 2 pipe belt idlers arranged up and down on the conveyor belt support frame arranged in the horizontal arc section, and an upper pressing idler arranged on the side of the upper pipe belt idler close to the center of the arc, and a lower supporting idler arranged on the side of the lower pipe belt idler close to the center of the arc; the second arc-shaped shaping belts of the upper pressing idler and the lower supporting idler respectively form a circular channel with the same shape as the conveyor belt with the upper first arc-shaped shaping belt and the lower first arc-shaped shaping belt.

7. The pipe belt conveyor according to claim 5, characterized in that, The middle conveying section further includes a slope arc section; one pipe belt supporting wheel is arranged on the belt conveyor support frame disposed in the slope arc section, an upper pressing belt wheel disposed above the pipe belt supporting wheel, and a lower supporting belt wheel disposed below the pipe belt supporting wheel; an included angle that inclines inwardly toward the arc is formed between the vertical direction and the upper side of the center point connection line of the upper pressing belt wheel, the pipe belt supporting wheel, and the lower supporting belt wheel; the angle of the included angle is equal to the angle of the spiral rising angle or the spiral descending angle of the conveyor in the slope arc section; the second circular arc shaping belt of the upper pressing belt wheel and the lower supporting belt wheel forms a circular channel having the same shape as the conveyor belt with the first circular arc shaping belt.

8. The pipe belt conveyor according to claim 5, characterized in that, A transmission key connection is provided between the bushing and the first roller or the second roller.

9. The pipe belt conveyor according to claim 5, characterized in that, Photovoltaic panels are provided on the top of the corridor of each belt conveyor support frame, and an intelligent charge and discharge control system electrically connected to the photovoltaic panels is provided inside.

10. The pipe belt conveyor according to claim 9, characterized in that, The pipe belt supporting wheel further includes a driving part; the output end of the driving part is connected to the first roller and is electrically connected to the intelligent charge and discharge control system.

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