Clamping belt type large-angle lifting belt conveyor

Abstract

A clamping belt type large-angle lifting belt conveyor comprises an inner ring conveying belt, an outer ring conveying belt, a progress carrier roller set, a return carrier roller set, a transmission drum, a turnabout drum and a tensioning device, the inner ring conveying belt is connected with the outer ring conveying belt in a sleeved mode, and the progress carrier roller set is arranged at the bottom of the inner ring conveying belt in the feeding direction. The return roller set is arranged at the bottom of the outer-ring conveying belt in the return direction, the transmission drum is arranged at the tail end of the inner-ring conveying belt in the feeding direction so as to drive the inner-ring conveying belt to rotate, and the tensioning device is arranged at the head end of the inner-ring conveying belt in the feeding direction so as to adjust the tightness of the inner-ring conveying belt and the outer-ring conveying belt; the conveyor is divided into a feeding area, a conveying area and a discharging area by the inner ring conveying belt and the outer ring conveying belt, and the feeding area is provided with a plurality of turnabout drums; the discharging area is provided with a plurality of turnabout drums, so that the inner ring conveying belt and the outer ring conveying belt define the discharging area, and materials flow out from the side edge of the discharging area.

Description

Technical Field

[0001] The invention relates to the technical field of conveyors, and in particular to a belt-entraining large-angle lifting belt conveyor. Background Art

[0002] When conveying materials at a large angle over a long distance, a belt conveyor with corrugated sidewalls is generally used. The corrugated sidewall belt conveyor can transport materials at any angle below 90°, but due to the influence of the sidewalls of the corrugated sidewall conveyor belt, the cleaning problem has not been well solved during the unloading process, affecting the use environment, and due to the influence of the structure of the conveyor belt itself, the material conveying capacity is small. At present, there are also entrainment conveyors that allow materials to be transported between two belts. For example, the patent number is: 201810378871.5, and the name is environmentally friendly belt-pressing continuous ship loader. This solution is adopted. The solution uses a large-angle lifting conveying system composed of two sets of belt conveyors to transport materials between two conveyor belts. However, the two sets of conveyor belts of this conveying system are independent of each other, that is, the independent conveyor belt system on the lower layer is responsible for conveying materials, and the conveyor belt system on the upper layer is responsible for squeezing materials. The entire conveying system has two independent drive devices, each driving the upper conveyor belt or the lower conveyor belt, which consumes a lot of energy. In actual use, due to the different tightness of the two independent conveyor belts, they often cannot run synchronously, causing the drive device to overload and even damage the drive device in severe cases. Summary of the invention

[0003] In view of this, it is necessary to provide an entrainment-type large-angle lifting belt conveyor, which can realize the synchronous operation of two conveyor belts and reduce the energy consumption of the entrainment-type conveyor.

[0004] A belt-entraining large-angle lifting belt conveyor comprises an inner ring conveyor belt, an outer ring conveyor belt, a process roller group, a return roller group, a driving roller, a redirecting roller, and a tensioning device. The inner ring conveyor belt is sleeved and connected with the outer ring conveyor belt. The process roller group is arranged at the bottom of the inner ring conveyor belt in the feeding direction, and the return roller group is arranged at the bottom of the outer ring conveyor belt in the return direction. The driving roller is arranged at the end of the inner ring conveyor belt in the feeding direction to drive the inner ring conveyor belt to rotate. The tensioning device is arranged at the head end of the inner ring conveyor belt in the feeding direction to adjust the tightness of the inner ring conveyor belt and the outer ring conveyor belt; the inner ring conveyor belt and the outer ring conveyor belt divide the conveyor into a feeding area, a conveying area, and a discharging area. The feeding area is provided with a plurality of redirecting rollers so that the inner ring conveyor belt and the outer ring conveyor belt surround the feeding area, and the material is put into the inner ring conveyor belt from the side of the feeding area; the discharging area is provided with a plurality of redirecting rollers so that the inner ring conveyor belt and the outer ring conveyor belt surround the discharging area, and the material flows out from the side of the discharging area.

[0005] Preferably, the feed zone is provided with four redirecting rollers, two of which are located on both horizontal sides of the upper part of the outer ring conveyor belt and are in contact with the outer ring conveyor belt, and the other two redirecting rollers are located on both horizontal sides of the lower part of the inner ring conveyor belt and are in contact with the outer ring conveyor belt.

[0006] Preferably, the feed zone is provided with a plow-shaped feed plate to guide external materials to the inner ring conveyor belt.

[0007] Preferably, the unloading area has four redirecting rollers, two of which are located on both horizontal sides of the upper part of the outer ring conveyor belt and fit with the outer ring conveyor belt, and the other two are located on both horizontal sides of the lower part of the inner ring conveyor belt and fit with the outer ring conveyor belt.

[0008] Preferably, the unloading area is provided with a plow-shaped unloading plate to guide the materials on the inner ring conveyor belt out.

[0009] Preferably, the entrainment-type large-angle lifting belt conveyor also includes an entrainment device to make the material close to the outer ring conveyor belt. The entrainment device is located in the conveying area. The entrainment device includes a fixed bracket, a belt pressing roller group, a connecting rod, a spring, and an adjusting nut. The side of the fixed bracket is hinged to the belt pressing roller group, the bottom of the belt pressing roller group is in contact with the outer ring conveyor belt, the belt pressing roller group is movably connected to the lower end of the connecting rod, the upper end of the connecting rod is sleeved with the fixed bracket, the spring is located below the fixed bracket and is arranged between the fixed bracket and the adjusting nut, and the adjusting nut is threadedly connected to the connecting rod.

[0010] Preferably, the belt holding roller group includes a short roller, a long roller, and a pin shaft, one end of the short roller is rotatably connected to a fixed bracket, the other end of the short roller is rotatably connected to one end of the long roller, the other end of the long roller is rotatably connected to an adjacent long roller, and a pin shaft is provided at the connection between the short roller and the long roller, and the long roller and the long roller, and the pin shaft is sleeved and connected to the lower end of the connecting rod.

[0011] Beneficial effects: When the present invention is working, the material first enters the inner ring conveyor belt from the feeding area. As the inner ring conveyor belt moves, the material is clamped by the inner ring conveyor belt and the outer ring conveyor belt in the conveying area, and then transported to the unloading area and transferred out. The inner ring conveyor belt and the outer ring conveyor belt use the same transmission roller and tensioning device, and can run synchronously. At the same time, since only one driving motor is required, the energy consumption is relatively low. In the process of conveying materials, the inner ring conveyor belt and the outer ring conveyor belt are clamped together by the entrainment device, and the material is wrapped between the two belt surfaces to achieve large-angle transportation. By setting a redirecting roller in the feeding area and the unloading area, space for the material to enter and exit is reserved, thereby facilitating feeding and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the entrainment type large-angle lifting belt conveyor of the present invention.

[0013] Figure 2 It is a schematic diagram of the working state of the entrainment device of the present invention.

[0014] Figure 3 This is a top view of the unloading area in operation.

[0015] In the figure: an entrainment-type large-angle lifting belt conveyor 10, an inner ring conveyor belt 20, an outer ring conveyor belt 30, a feeding area 301, a conveying area 302, a unloading area 303, a plow-shaped unloading plate 3031, a process roller group 40, a return roller group 50, an idler bracket 501, an inclined idler 502, a horizontal idler 503, a transmission roller 60, a redirecting roller 70, a tensioning device 80, an entrainment device 90, a fixed bracket 901, a belt pressing roller group 902, a connecting rod 903, a spring 904, and an adjusting nut 905. DETAILED DESCRIPTION

[0016] 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. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Please see Figures 1 to 3 A belt-entrained large-angle lifting belt conveyor 10 includes an inner ring conveyor belt 20, an outer ring conveyor belt 30, a process roller group 40, a return roller group 50, a drive roller 60, a redirecting roller 70, and a tensioning device 80. The inner ring conveyor belt 20 is sleeved and connected with the outer ring conveyor belt 30. The process roller group 40 is arranged at the bottom of the inner ring conveyor belt 20 in the feeding direction, the return roller group 50 is arranged at the bottom of the outer ring conveyor belt 30 in the return direction, the drive roller 60 is arranged at the end of the inner ring conveyor belt 20 in the feeding direction to drive the inner ring conveyor belt 20 to rotate, and the tensioning device 80 is arranged at the inner ring conveyor belt The head end of the feeding direction of 20 is used to adjust the tightness of the inner ring conveyor belt 20 and the outer ring conveyor belt 30; the inner ring conveyor belt 20 and the outer ring conveyor belt 30 divide the conveyor into a feeding area 301, a conveying area 302, and a discharge area 303. The feeding area 301 is provided with a plurality of redirecting rollers 70 so that the inner ring conveyor belt 20 and the outer ring conveyor belt 30 enclose the feeding area 301, and the material is put into the inner ring conveyor belt 20 from the side of the feeding area 301; the discharge area 303 is provided with a plurality of redirecting rollers 70 so that the inner ring conveyor belt 20 and the outer ring conveyor belt 30 enclose the discharge area 303, and the material flows out from the side of the discharge area 303.

[0018] The two conveyor belts of the present invention are connected by sleeves, while the two conveyor belts of the prior art are independent of each other. The entrainment type conveyor conveys materials mainly by the clamping force between the two conveyor belts acting on the materials, so that the materials obtain sufficient static friction to offset the gravity during the rising process and prevent the materials from sliding down. In the prior art, the clamping force between the two independent conveyor belts is greatly affected by the tightness of the two belts and the gap between the two belts during installation. If the conveyor belt is loose, the clamping force between the two belts is small. At the same time, when the gap between the two is large during installation, and the incoming material is small, the clamping force between the two belts is small. In this way, the feeding process is unstable, and the materials are easy to accumulate in the rising section, causing the belt to loosen, which will further aggravate the material accumulation, forming a vicious circle, and the maintenance frequency is high. The inner ring conveyor belt 20 and the outer ring conveyor belt 30 of the present invention are sleeved together and share a tensioning device. The consistency of the tightness is good, and the clamping force between the belts is relatively stable, so the feeding process is also relatively stable. The belt is not easy to loosen, the maintenance frequency is significantly reduced, and the synchronization of the belt is also better. At the same time, a transmission roller 60 is shared, and the transmission roller 60 is connected to the driving motor and driven by the driving motor. The inner ring conveyor belt 20 and the outer ring conveyor belt 30 share a driving motor, so that the transmission efficiency is improved and the energy consumption is reduced.

[0019] Due to the need to convey materials, the friction force on the surface of the conveyor belt is relatively large, so even if a tensioning device and a driving roller 60 are shared, the inner ring conveyor belt 20 and the outer ring conveyor belt 30 will not slip.

[0020] The structures of the process roller group 40 and the return roller group 50 of the present invention are the same, both of which are composed of multiple roller assemblies, and the difference lies in the different installation positions. The process roller group 40 is located above the return roller group 50. The structure of the roller assembly is shown in the figure, including a roller bracket 501, two inclined rollers 502, and a horizontal roller 503. The roller assembly is a conventional component in the art and will not be described in detail.

[0021] The transmission drum 60 of the present invention is used to drive the inner ring conveyor belt 20 to rotate, and the inner ring conveyor belt 20 rotates while driving the outer ring conveyor belt 30 to rotate. The transmission drum 60 is connected to a driving motor to obtain power.

[0022] The redirecting roller 70 of the present invention acts on the outer ring conveyor belt 30 , so that the outer ring conveyor belt 30 and the inner ring conveyor belt 20 enclose two spaces convenient for loading and unloading, namely, the feeding area 301 and the unloading area 303 .

[0023] In a preferred embodiment, the feed zone 301 is provided with four redirection rollers 70, two of which are located at the horizontal sides of the upper part of the outer ring conveyor belt 30 and are in contact with the outer ring conveyor belt 30, and the other two redirection rollers 70 are located at the horizontal sides of the lower part of the inner ring conveyor belt 20 and are in contact with the outer ring conveyor belt 30. In this way, the outer ring conveyor belt 30 first changes direction upward, then changes direction horizontally, then changes direction downward, and then changes direction horizontally. The redirection rollers 70 can also play a role in tensioning the outer ring conveyor belt 30.

[0024] The external materials enter the inner ring conveyor belt 20 of the feeding area 301 from the side. There is a certain angle between the direction in which the materials enter the feeding area 301 and the feeding direction of the inner ring conveyor belt 20. In order to prevent the materials from spilling outside during this process, in a preferred embodiment, the feeding area 301 is provided with a plow-shaped feeding plate to guide the external materials to the inner ring conveyor belt 20. Specifically, the plow-shaped feeding plate is inclined, which can prevent the materials from spilling and change the direction of the materials.

[0025] Similarly, for the unloading area 303, in a preferred embodiment, the unloading area 303 has four redirecting rollers 70, two of which are located on the horizontal sides of the upper part of the outer ring conveyor belt 30 and are in contact with the outer ring conveyor belt 30, and the other two redirecting rollers 70 are located on the horizontal sides of the lower part of the inner ring conveyor belt 20 and are in contact with the outer ring conveyor belt 30.

[0026] In a preferred embodiment, the unloading area 303 is provided with a plow-shaped unloading plate 3031 to guide the materials on the inner ring conveyor belt 20 out. The plow-shaped unloading plate 3031 of the unloading area 303 can be straight or V-shaped. If it is straight, the materials are unloaded on one side; if it is V-shaped, the materials are unloaded on both sides.

[0027] In actual use, in the ascending section, due to the force of the material's gravity, the outer ring conveyor belt 30 and the inner ring conveyor belt 20 are still loose, thereby increasing the conveying energy consumption and the risk of slippage.

[0028] Therefore, in a preferred embodiment, the entrainment-type large-angle lifting belt conveyor 10 also includes an entrainment device 90 to make the material close to the outer ring conveyor belt 30. The entrainment device 90 is located in the conveying area 302. The entrainment device 90 includes a fixed bracket 901, a belt pressing roller group 902, a connecting rod 903, a spring 904, and an adjusting nut 905. The side of the fixed bracket 901 is hinged to the belt pressing roller group 902, the bottom of the belt pressing roller group 902 is in contact with the outer ring conveyor belt 30, the belt pressing roller group 902 is movably connected to the lower end of the connecting rod 903, the upper end of the connecting rod 903 is sleeved and connected to the fixed bracket 901, the spring 904 is located below the fixed bracket 901 and is arranged between the fixed bracket 901 and the adjusting nut 905, and the adjusting nut 905 is threadedly connected to the connecting rod 903.

[0029] In this way, when the material is climbing, under the action of the spring 904, the connecting rod 903 acts on the belt pressing roller group 902, always pressing the outer ring conveyor belt 30 against the material, so that the outer ring conveyor belt 30 and the inner ring conveyor belt 20 clamp the material, thereby reducing the risk of slipping and improving the material transportation efficiency.

[0030] In a preferred embodiment, the belt holding roller group 902 includes a short roller, a long roller, and a pin shaft. One end of the short roller is rotatably connected to the fixed bracket 901, the other end of the short roller is rotatably connected to one end of the long roller, and the other end of the long roller is rotatably connected to the adjacent long roller. Pin shafts are provided at the connection between the short roller and the long roller, and the long roller and the long roller, and the pin shaft is sleeved and connected to the lower end of the connecting rod 903.

[0031] In this way, the long roller can always keep in contact with and press the outer ring conveyor belt 30, thereby reducing the occurrence of slippage problems.

[0032] The above-mentioned entrainment type large angle lifting belt conveyor 10 is only the main form of the present invention. In terms of specific use, such as the selection of the drive motor, the width of the belt holding roller group 902, the length of the conveyor belt, the material of each component, etc., are all selected according to actual conditions.

[0033] The most basic form of the tensioning device 80 of the present invention is a tensioning wheel. As for the tensioning device 80 of the conveyor belt, the prior art is very mature, and there is no technical obstacle to its application in the conveyor belt of the present invention, so it will not be described in detail.

[0034] The application scenarios of the present invention are generally long-distance, large-flow, and continuous material transportation, such as underground coal transportation. The height in the mine is limited, and the height occupied by the present invention is also smaller than that of two independent conveyor systems. Therefore, it is more applicable to narrow places such as mines.

[0035] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A belt-entraining large-angle lifting belt conveyor, characterized in that: The conveyor belt comprises an inner ring conveyor belt, an outer ring conveyor belt, a process roller group, a return roller group, a transmission roller, a redirecting roller and a tensioning device. The inner ring conveyor belt is sleeved and connected with the outer ring conveyor belt. The process roller group is arranged at the bottom of the inner ring conveyor belt in the feeding direction, the return roller group is arranged at the bottom of the outer ring conveyor belt in the return direction, the transmission roller is arranged at the end of the inner ring conveyor belt in the feeding direction to drive the inner ring conveyor belt to rotate, and the tensioning device is arranged at the head end of the inner ring conveyor belt in the feeding direction to adjust the tightness of the inner ring conveyor belt and the outer ring conveyor belt; the inner ring conveyor belt and the outer ring conveyor belt divide the conveyor into a feeding area, a conveying area and a discharging area, and the feeding area is provided with a plurality of redirecting rollers so that the inner ring conveyor belt and the outer ring conveyor belt form a feeding area, and the material is put into the inner ring conveyor belt from the side of the feeding area; the discharging area is provided with a plurality of redirecting rollers so that the inner ring conveyor belt and the outer ring conveyor belt form a discharging area, and the material flows out from the side of the discharging area.

2. The entrained belt conveyor with large lifting angle as claimed in claim 1, characterized in that: The feeding area is provided with four redirecting rollers, two of which are located at the horizontal sides of the upper part of the outer ring conveyor belt and are in contact with the outer ring conveyor belt, and the other two redirecting rollers are located at the horizontal sides of the lower part of the inner ring conveyor belt and are in contact with the outer ring conveyor belt.

3. The entrained belt conveyor with large lifting angle as claimed in claim 1, characterized in that: The feeding area is provided with a plow-shaped feeding plate to guide external materials to the inner ring conveyor belt.

4. The entrained belt conveyor with large lifting angle as claimed in claim 1, characterized in that: The unloading area has four redirecting rollers, two of which are located on both horizontal sides of the upper part of the outer ring conveyor belt and fit with the outer ring conveyor belt, and the other two redirecting rollers are located on both horizontal sides of the lower part of the inner ring conveyor belt and fit with the outer ring conveyor belt.

5. The entrained belt conveyor with large lifting angle as claimed in claim 1, characterized in that: The unloading area is provided with a plow-shaped unloading plate to guide the materials on the inner ring conveyor belt out.

6. The entrained belt conveyor with large lifting angle as claimed in claim 1, characterized in that: The entrainment-type large-angle lifting belt conveyor also includes an entrainment device to make the material close to the outer ring conveyor belt. The entrainment device is located in the conveying area. The entrainment device includes a fixed bracket, a belt pressing roller group, a connecting rod, a spring, and an adjusting nut. The side of the fixed bracket is hinged to the belt pressing roller group, the bottom of the belt pressing roller group is in contact with the outer ring conveyor belt, the belt pressing roller group is movably connected to the lower end of the connecting rod, the upper end of the connecting rod is sleeved and connected to the fixed bracket, the spring is located below the fixed bracket and is arranged between the fixed bracket and the adjusting nut, and the adjusting nut is threadedly connected to the connecting rod.

7. The entrained belt conveyor with large lifting angle as claimed in claim 6, characterized in that: The belt holding roller group includes a short roller, a long roller, and a pin shaft. One end of the short roller is rotatably connected to a fixed bracket, the other end of the short roller is rotatably connected to one end of the long roller, and the other end of the long roller is rotatably connected to an adjacent long roller. Pin shafts are provided at the connections between the short roller and the long roller, and between the long roller and the long roller, and the pin shaft is sleeved and connected to the lower end of the connecting rod.

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