Novel pressing belt type large-dip-angle belt conveyor

Abstract

The invention relates to a novel pressing belt type large-dip-angle belt conveyor which comprises a lower-layer driven roller, an upper-layer driven roller, a pressing belt, an upper-layer return supporting roller, a main body truss, an upper-layer roller driving device, an upper-layer driving roller, a lower-layer driving roller, a lower-layer roller driving device, a bearing belt, a pressing belt device, a middle-layer bearing supporting roller and a lower-layer return supporting roller. The pressing belt is provided with a corrugated flange and a baffle structure, the pressing belt device presses the pressing belt to the position above the bearing belt, and then the pressing belt and the bearing belt are recycled through the upper-layer driving roller and the lower-layer driving roller respectively and conveyed to the machine head through the upper-layer return carrier roller and the lower-layer return carrier roller respectively. Bulk materials are not prone to slipping off from the two sides of the conveying belt in the material conveying process, the structure is simple, the conveying efficiency is high, and the weight is lighter; a belt pressing device with a spring in the middle is arranged, so that the stability of the conveying belt passing through the carrier roller is improved; a flexible carrier roller structure is adopted, unbalance loading can be corrected, and adaptability to different load working conditions is high.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying, in particular to a novel belt-pressed large-angle belt conveyor. Background Art

[0002] Belt conveyor is one of the most important material transportation equipment in my country, which can realize continuous material transportation. Belt conveyor has the advantages of strong terrain adaptability, convenient laying, strong conveying capacity and high economic benefits, and undertakes most of the bulk material transportation work. When transporting at a large inclination angle to the ground, traditional high-angle belt conveyors mainly include corrugated sidewall conveyors and pressed belt conveyors. The corrugated sidewall conveyor uses a corrugated sidewall conveyor belt with straight rollers for transportation. When this type of conveyor belt is used to transport bulk materials at a large inclination angle, under full load, the conveyor belt will vibrate when passing over the rollers, and the bulk materials can easily slide off from both sides. The pressed belt conveyor uses a clamping mechanism with a covering belt, a bearing belt and trough rollers for transportation. Traditional trough rollers can only transport at a fixed trough angle, and have poor adaptability to working conditions with different transport volumes. The clamping mechanism has a complex structure and is very heavy. In addition, the transportation efficiency of these two traditional high-angle conveyors is not high when transporting materials at a large inclination angle. Therefore, it is necessary to design a new type of pressed belt high-angle belt conveyor with high efficiency, energy saving, simple structure and adaptability to various load conditions. Summary of the invention

[0003] Aiming at the problems of low transport efficiency, complex structure and poor adaptability to different working conditions of existing belt conveyors when transporting at a large inclination angle with the ground, the present invention invents a novel belt-pressing large-inclination belt conveyor.

[0004] The technical scheme is as follows: a new type of belt-pressing type large-angle belt conveyor, comprising a lower driven roller, an upper driven roller, a pressure belt, an upper return roller, a main truss, an upper roller driving device, an upper driving roller, a lower driving roller, a lower roller driving device, a bearing belt, a pressure belt device, a middle bearing roller, and a lower return roller; the upper driving roller is installed at the head of the upper layer of the main truss, and is driven by the upper roller driving device to rotate; the upper driven roller is installed at the tail of the upper layer of the main truss; the pressure belt is installed at both ends of the upper driving roller and the upper driven roller, and is supported by the upper return roller in the middle; the upper roller driving device is installed at the head of the upper layer of the main truss to provide power for the upper driving roller ; The belt pressing device is installed at the inclined part of the middle layer of the main truss and is evenly and symmetrically distributed at a certain interval; the lower driving roller is installed at the head of the lower layer of the main truss, and is driven to rotate by the lower roller driving device; the lower driven roller is installed at the tail of the lower layer of the main truss; the bearing belt is installed at both ends of the lower driving roller and the lower driven roller, and is supported by the middle bearing roller and the lower return roller in the middle; the lower roller driving device is installed at the head of the lower layer of the main truss, which plays a role in providing power for the lower driving roller; the main truss is divided into three layers, the middle layer is the bearing layer, used to transport materials, the upper and lower layers are empty layers, the upper layer is used to transmit the upper empty conveyor belt, and the lower layer is used to transmit the lower empty conveyor belt.

[0005] The large-angle conveying part is composed of a pressure belt device, a pressure belt, a bearing belt and a middle-layer bearing roller. When conveying materials at a large angle, the pressure belt and the bearing belt are combined to form an envelope for the materials. The materials are carried by the bearing belt, and the bearing belt is carried by the middle-layer bearing roller. To prevent the materials from slipping, the pressure belt is buckled and pressed on the bearing belt. The pressure belt is flexibly positioned by a pressure belt device with a spring in the middle to prevent the pressure belt and the bearing belt from lateral slipping. At the same time, a small displacement of the pressure belt along the vertical direction of the material conveying angle is retained, leaving space for a small displacement of the pressure belt along the vertical direction of the material conveying angle caused by large irregular materials during transportation.

[0006] The conveyor belt is divided into a pressure belt and a carrying belt. The pressure belt has corrugated ribs on both sides to prevent materials from sliding off the sides of the conveyor belt when transporting materials at a large angle. Baffles are evenly arranged in the middle of the pressure belt to prevent large pieces of materials from sliding downward along the inclination direction when transporting materials at a large angle. The baffles are arranged at an angle of 125 degrees to the surface of the pressure belt. Compared with the vertical arrangement, this arrangement increases the inclination angle by 35 degrees. This inclination angle is exactly the dynamic repose angle of the raw coal, which can reduce the load on the pressure belt.

[0007] The belt pressing device is composed of a pressure roller, a pressure roller frame, an outrigger, a spring and a pin. The outrigger has an angle of 8 degrees, so that the pressure roller installed on it forms an angle of 8 degrees with the horizontal direction. The pressure roller is installed at the bottom of the pressure roller frame. The pressure roller frame and the outrigger are connected by a fixed pin extending from the upper part of the pressure roller frame. The connecting part is equipped with a spring, so that the belt pressing device has flexibility in the vertical direction along the material conveying inclination angle. The outrigger is hinged to the main truss through the pin, so that the belt pressing device can rotate around the pin to adjust the position of the belt pressing device on the pressure belt to adapt to different load conditions.

[0008] The rollers are divided into three layers of rollers, namely, an upper return roller, a middle load-bearing roller and a lower return roller. The middle load-bearing roller adopts a flexible roller structure and is evenly installed at a certain distance on the middle layer of the main truss, playing the role of supporting the middle layer of the load-bearing belt. The rollers include rollers, tension springs, universal joints, joints, cylindrical pins and roller frames. The six rollers are connected in sequence by springs and universal joints, and the two ends are connected to the two joints by springs and universal joints. The two joints are respectively installed on the roller frames by cylindrical pins. The tension spring can absorb vibration and impact, and the flexible roller structure can automatically adapt to the load conditions of different transport volumes and reduce the bending resistance of the load-bearing belt. At the same time, when an unbalanced load occurs, the groove point at the bottom can automatically align with the center of gravity of the load to achieve the purpose of correcting the unbalanced load. The upper return roller and the lower return roller adopt a straight roller structure and are evenly installed at a certain distance on the upper and lower layers of the main truss, respectively playing the role of recovering the upper empty conveyor belt and the lower empty conveyor belt.

[0009] The roller drive device is divided into an upper roller drive device and a lower roller drive device. The upper roller drive device is composed of a DC motor, a closed coupling, a reduction box and an open coupling. The DC motor is connected to the reduction box through a closed coupling, and the reduction box is connected to the upper drive roller through an open coupling. The structure of the lower roller drive device is the same as that of the upper roller drive device.

[0010] The advantages of the present invention are: 1. The new type of belt-pressed high-angle belt conveyor adopts a structure in which a belt-pressed belt with corrugated sidewalls and baffles is buckled with the carrying belt to transport materials at a high angle, so that bulk materials are not easy to slide off the sides of the conveyor belt during transportation. The baffles are arranged at an angle of 125 degrees to the belt surface, which increases the inclination angle by 35 degrees compared with the vertical arrangement. This inclination angle is exactly the dynamic repose angle of the raw coal. The arrangement of baffles can prevent materials from sliding off and reduce the load on the belt. 2. When the new type of belt-pressing high-angle belt conveyor realizes the transportation of materials at a high angle, a belt-pressing device is provided above the belt-pressing device, which increases the stability of the conveyor belt when passing the roller; a spring is provided in the belt-pressing device, so that the belt-pressing device can absorb the impact force generated during the transportation of large pieces of irregular materials; the belt-pressing device can rotate along the pin shaft to adjust the position of the belt-pressing device on the belt-pressing device to adapt to various load conditions; 3. When the new type of belt-pressed high-angle belt conveyor realizes the transportation of materials at a high angle, the middle-layer load-bearing roller adopts the structure of flexible roller. The tension spring between the rollers can absorb vibration and impact. The structure of the flexible roller can automatically adapt to the load conditions of different transport volumes and reduce the bending resistance of the load-bearing belt. At the same time, when the load is offset, the groove point at the bottom can automatically align with the center of gravity of the load to achieve the purpose of correcting the offset load. 4. The new type of pressure belt type high-angle belt conveyor adopts a structure in which the pressure belt and the carrying belt are buckled together to form a closed envelope on all sides. Compared with other existing forms of high-angle belt conveyors, it has the advantages of simple structure and lighter weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of the structure of a new type of belt-pressing large-angle belt conveyor of the present invention; Figure 2 This is a main structure diagram of a new type of belt-pressing large-angle belt conveyor of the present invention; Figure 3 It is a schematic diagram of a new type of belt-pressing type large-angle belt conveyor of the present invention, in which a pressing belt and a carrying belt are mutually buckled during transportation at a large angle; Figure 4 This is a schematic diagram of a new type of belt pressing structure of a large-angle belt conveyor according to the present invention; Figure 5 It is a structural schematic diagram of a new type of belt pressing device of a belt conveyor with a large inclination angle according to the present invention; Figure 6 This is a schematic structural diagram of an upper roller driving device of a new type of belt-pressing large-angle belt conveyor of the present invention; Figure 7 It is a schematic diagram of the state of the middle-layer bearing roller of a new type of belt-pressing large-angle belt conveyor under no-load; Figure 8 It is a schematic diagram of the state of the middle-layer bearing roller of a new type of belt-pressing large-angle belt conveyor under normal load of the present invention; Fig. 9 It is a schematic diagram of the state of the middle-layer bearing roller of a new type of belt-pressing large-angle belt conveyor under an eccentric load of the present invention; In the figure: lower driven roller 1, upper driven roller 2, pressure belt 3, upper return roller 4, main truss 5, upper roller driving device 6, upper drive roller 7, lower drive roller 8, lower roller driving device 9, bearing belt 10, pressure belt device 11, middle bearing roller 12, lower return roller 13; the pressure belt 3 includes corrugated rib 31 and baffle 32; the pressure belt device 11 includes pressure roller 111, pressure roller frame 112, outrigger 113, spring 114, pin 115; the upper roller driving device 6 includes DC motor 61, closed coupling 62, reduction box 63, open coupling 64; the middle bearing roller 12 includes roller 121, tension spring 122, universal joint 123, joint 124, cylindrical pin 125, roller frame 126. DETAILED DESCRIPTION

[0012] The present invention will be further described below in conjunction with the embodiments of the present invention, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0013] See also Figure 1 , Figure 2The present invention relates to a novel belt-pressing type large-angle belt conveyor, comprising a lower driven roller 1, an upper driven roller 2, a belt-pressing 3, an upper return roller 4, a main truss 5, an upper roller driving device 6, an upper driving roller 7, a lower driving roller 8, a lower roller driving device 9, a bearing belt 10, a belt-pressing device 11, a middle bearing roller 12, and a lower return roller 13; the upper driving roller 7 is installed at the head of the upper layer of the main truss 5, and is driven by the upper roller driving device 6 to rotate; the upper driven roller 2 is installed at the tail of the upper layer of the main truss 5; the belt-pressing 3 is installed at both ends of the upper driving roller 7 and the upper driven roller 2, and is supported by the upper return roller 4 in the middle; the upper roller driving device 6 is installed at the head of the upper layer of the main truss 5, and provides power for the upper driving roller 7 The action of force; the belt pressing device 11 is installed at the inclined part of the middle layer of the main truss 5, and is evenly and symmetrically distributed at a certain interval; the lower driving roller 8 is installed at the head of the lower layer of the main truss 5, and is driven by the lower roller driving device 9 to rotate; the lower driven roller 1 is installed at the tail of the lower layer of the main truss 5; the bearing belt 10 is installed at both ends of the lower driving roller 8 and the lower driven roller 1, and is supported by the middle bearing roller 12 and the lower return roller 13 in the middle; the lower roller driving device 9 is installed at the head of the lower layer of the main truss 5, which plays a role in providing power for the lower driving roller 8; the main truss 5 is divided into three layers, the middle layer is the bearing layer, used to transport materials, the upper and lower layers are empty layers, the upper layer is used to transmit the upper empty conveyor belt, and the lower layer is used to transmit the lower empty conveyor belt.

[0014] See also Figure 3 , Figure 4 , Figure 5 The press belt 3 includes a corrugated rib 31 and a baffle 32. The corrugated rib 31 prevents the material from sliding off the sides of the conveyor belt when the material is transported at a large angle. The baffle 32 prevents the large piece of material from sliding downward along the inclination direction when the material is transported at a large angle. The baffle 32 is arranged at an angle of 35 degrees to the vertical plane of the surface of the press belt 3. This angle is exactly the dynamic repose angle of the raw coal, which can reduce the load on the press belt 3. The large-angle conveying part is composed of a belt pressing device 11, a belt pressing device 3, a carrying belt 10 and a middle-layer carrying roller 12. When conveying materials at a large angle, the belt pressing device 11 and the carrying belt 10 are combined to form an envelope for the materials. The materials are carried by the carrying belt 10, and the carrying belt 10 is carried by the middle-layer carrying roller 12. To prevent the materials from slipping, the belt pressing device 11 with a spring 114 is used to flexibly position the belt pressing device 11 to prevent the belt pressing device 11 and the carrying belt 10 from lateral slipping. At the same time, a small displacement of the belt pressing device 11 along the vertical direction of the material conveying angle is retained, leaving space for a small displacement of the belt pressing device 11 along the vertical direction of the material conveying angle caused by large irregular materials during the conveying process.

[0015] See also Figure 5 The belt pressing device 11 includes a pressure roller 111, a pressure roller frame 112, an outrigger 113, a spring 114 and a pin 115. The outrigger 113 has an angle of 8 degrees, so that the pressure roller 111 installed thereon forms an angle of 8 degrees with the horizontal direction. The pressure roller 111 is installed at the bottom of the pressure roller frame 112. The pressure roller frame 112 and the outrigger 113 are connected by a fixed pin extending outward from the upper part of the pressure roller frame 112. The connecting part is equipped with a spring 114, so that the belt pressing device 11 has flexibility in the vertical direction along the material conveying inclination angle. The outrigger 113 is hinged to the main truss 5 through the pin 115, so that the belt pressing device 11 can rotate around the pin to adjust the position of the belt pressing device 11 on the pressure belt 3 to adapt to different load conditions.

[0016] See also Figure 6 The upper roller driving device 6 includes a DC motor 61, a closed coupling 62, a reduction box 63 and an open coupling 64. The DC motor 61 is connected to the reduction box 63 through the closed coupling 62, and the reduction box 63 is connected to the upper driving roller 7 through the open coupling 64. The structure of the lower roller driving device 9 is the same as that of the upper roller driving device 6.

[0017] See also Figure 7 , Figure 8 , Fig. 9 The middle-layer load-bearing roller 12 adopts a flexible roller structure, including a roller 121, a tension spring 122, a universal joint 123, a joint 124, a cylindrical pin 125, and a roller frame 126. The six rollers 121 are connected in sequence through springs 122 and universal joints 123, and the two ends are connected to the two joints 124 through springs 122 and universal joints 123. The two joints 124 are respectively installed on the roller frame 126 through cylindrical pins 125. The tension spring 122 can absorb vibration and impact, and the structure of the flexible roller can automatically adapt to the load conditions of different transport volumes, reduce the bending resistance of the carrying belt 10, and at the same time, when an unbalanced load occurs, the groove point at the bottom can automatically align with the center of gravity of the load to achieve the purpose of correcting the unbalanced load.

[0018] Working principle of the present invention: the main truss 5 is divided into three layers, the middle layer is the bearing layer, used to transport materials, the upper and lower layers are empty layers, the upper layer is used to transport the upper empty conveyor belt, and the lower layer is used to transport the lower empty conveyor belt; the belt pressing conveyor is divided into three parts, the front, the middle and the back, the front and the back parts are horizontal parts, used for horizontal transportation of materials, and the middle part is an inclined part, used for large-angle transportation of materials; the upper and lower layers of the front of the belt pressing conveyor are respectively installed with an upper driven roller 2 and a lower driven roller 1; the upper and lower layers of the rear of the belt pressing conveyor are respectively installed with an upper driving roller 7 and a lower driving roller 8, and the driving force is provided by an upper roller driving device 6 and a lower roller driving device 9 respectively; in the bearing layer, the belt pressing conveyor loads materials at the tail of the machine, and when the materials are transported in the front horizontal part, the pressing belt 3 and the bearing belt 10 are in a separated state, and the bearing belt 10 is supported by the middle-layer bearing roller 12 for material transportation; when the materials are transported to the inclined part in the middle of the belt pressing conveyor, the pressing belt 3 acts on the pressing device 11 The material is wrapped between the pressing belt 3 and the carrying belt 10 and transported upward, and is carried by the middle-layer carrying rollers 12 at the bottom and the pressing belt device 11 at the top; when the material is transported to the horizontal part at the rear of the pressing belt conveyor, the pressing belt 3 loses the downward pressure of the pressing belt device 11, and is separated from the carrying belt 10 under the lifting action of the upper driving roller 7 and the upper driven roller 2, and continues to be supported by the middle-layer carrying rollers 12 to transport the material; when the material is transported to the horizontal part at the rear of the pressing belt conveyor, the pressing belt 3 loses the downward pressure of the pressing belt device 11, and is separated from the carrying belt 10 under the lifting action of the upper driving roller 7 and the upper driven roller 2, and continues to be supported by the middle-layer carrying rollers 12 to transport the material; When the lower driving roller 8 is in operation, the material is unloaded through the lower driving roller 8, the pressing belt 3 runs to the upper return section of the main truss 5, and the carrying belt 10 runs to the lower return section of the main truss 5; in the upper return section of the main truss 5, the pressing belt 3 is transported by the upper return roller 4 to the upper driven roller 2 at the tail of the pressing belt conveyor, and in the lower return section of the main truss 5, the carrying belt 10 is transported by the lower return roller 13 to the lower driven roller 1 at the tail of the pressing belt conveyor to be refilled with materials, completing a working cycle.

Claims

1. A new type of belt-pressed large-angle belt conveyor, characterized in that: The invention comprises a lower driven roller (1), an upper driven roller (2), a pressure belt (3), an upper return roller (4), a main truss (5), an upper roller driving device (6), an upper driving roller (7), a lower driving roller (8), a lower roller driving device (9), a bearing belt (10), a pressure belt device (11), a middle bearing roller (12), and a lower return roller (13); the upper driving roller (7) is installed at the head of the upper layer of the main truss (5), and is driven by the upper roller driving device (6) to rotate; the upper driven roller (2) is installed at the tail of the upper layer of the main truss (5); the pressure belt (3) is installed at both ends of the upper driving roller (7) and the upper driven roller (2), and is supported by the upper return roller (4) in the middle; the upper roller driving device (6) is installed at the head of the upper layer of the main truss (5), and provides power for the upper driving roller (7). Function; the belt pressing device (11) is installed at the inclined part of the middle layer of the main truss (5) and is evenly and symmetrically distributed at a certain interval; the lower driving roller (8) is installed at the head of the lower layer of the main truss (5), and the lower driving roller (8) is driven to rotate by the lower roller driving device (9); the lower driven roller (1) is installed at the tail of the lower layer of the main truss (5); the bearing belt (10) is installed at both ends of the lower driving roller (8) and the lower driven roller (1), and is supported by the middle bearing roller (12) and the lower return roller (13) in the middle; the lower roller driving device (9) is installed at the head of the lower layer of the main truss (5) to provide power for the lower driving roller (8); the main truss (5) is divided into three layers: upper, middle and lower. The middle layer is the bearing layer for conveying materials, and the upper and lower layers are empty layers. The upper layer is used to convey the upper empty conveyor belt, and the lower layer is used to convey the lower empty conveyor belt.

2. The new type of belt-pressed high-angle belt conveyor according to claim 1 is characterized in that: The large-angle conveying part is composed of a belt pressing device (11), a belt pressing device (3), a bearing belt (10) and a middle-layer bearing roller (12). When conveying materials at a large angle, the belt pressing device (3) and the bearing belt (10) are combined to form an envelope for the materials. The materials are carried by the bearing belt (10), and the bearing belt (10) is carried by the middle-layer bearing roller (12). The belt pressing device (11) with a spring (114) in the middle is used to flexibly position the belt pressing device (11) on the bearing belt (10).

3. The new type of belt-pressed high-angle belt conveyor according to claim 1 is characterized in that The conveyor belt is divided into a pressure belt (3) and a carrying belt (10). The pressure belt (3) has corrugated sidewalls (31) on both sides. Baffles (32) are evenly arranged in the middle of the pressure belt (3). The baffles (32) and the surface of the pressure belt (3) are arranged at an angle of 125 degrees. Compared with the vertical arrangement, this arrangement increases the inclination angle by 35 degrees, which is exactly the dynamic repose angle of the raw coal.

4. The new type of belt-pressed high-angle belt conveyor according to claim 1 is characterized in that The belt pressing device (11) is composed of a pressure roller (111), a pressure roller frame (112), an outrigger (113), a spring (114) and a pin (115). The outrigger (113) has an angle of 8 degrees, so that the pressure roller (111) installed thereon forms an angle of 8 degrees with the horizontal direction. The pressure roller (111) is installed at the bottom of the pressure roller frame (112). The pressure roller frame (112) and the outrigger (113) are connected by a fixed pin extending outward from the upper part of the pressure roller frame (112). The connecting part is equipped with a spring (114), so that the belt pressing device (11) has flexibility in the vertical direction along the material conveying inclination angle. The outrigger (113) is hinged to the main truss (5) through the pin (115), so that the belt pressing device (11) can rotate around the pin to adjust the position of the belt pressing device (11) on the pressure belt (3).

5. The new type of belt-pressed high-angle belt conveyor according to claim 1 is characterized in that: The rollers are divided into three layers of rollers, namely, an upper return roller (4), a middle load-bearing roller (12) and a lower return roller (13). The middle load-bearing roller (12) adopts a flexible roller structure and is evenly installed at a certain distance in the middle layer of the main truss (5), playing the role of supporting the middle layer of the load-bearing belt (10). The rollers include rollers (121), tension springs (122), universal joints (123), joints (124), cylindrical pins (125) and roller frames (126). The six rollers (121) are connected to each other. The two ends are connected in sequence through springs (122) and universal joints (123), and are connected to two joints (124) through springs (122) and universal joints (123). The two joints (124) are respectively installed on roller frames (126) through cylindrical pins (125); the upper return rollers (4) and the lower return rollers (13) adopt the structure of straight rollers, and are evenly installed at a certain distance on the upper and lower layers of the main truss (5), respectively playing the role of recovering the upper empty conveyor belt and the lower empty conveyor belt.

6. The new type of belt-pressed high-angle belt conveyor according to claim 1 is characterized in that: The roller drive device is divided into an upper roller drive device (6) and a lower roller drive device (9). The upper roller drive device (6) is composed of a DC motor (61), a closed coupling (62), a reduction box (63) and an open coupling (64). The DC motor (61) is connected to the reduction box (63) through the closed coupling (62), and the reduction box (63) is connected to the upper driving roller (7) through the open coupling (64). The structure of the lower roller drive device (9) is the same as that of the upper roller drive device (6).

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