Adjustable idler for a belt conveyor

Abstract

The utility model relates to the technical field of belt conveyor, concretely relates to an adjustable carrier roller of belt conveyor, including liftable support column assembly, the bottom of support column assembly is connected with adjustable steel sheet and cooperates with adjustable steel sheet in the transverse direction perpendicular to the conveying direction and slips, the upper end of support column assembly connects roller group, and the both ends of roller group are provided with adjustable support and cooperate with support column assembly through adjustable support, and a plurality of connecting positions for cooperating with support column assembly are arranged on adjustable support. The utility model adjusts the position of support column assembly on the transverse direction, realizes the displacement of roller group transverse, thereby adjusts the horizontal camber of the conveyer belt, and the height of roller group can be adjusted through the lifting adjustment of support column assembly, and the adjustment of the vertical plane camber of roller group can be realized through the cooperation of support column assembly and adjustable support. The utility model can adjust the conveyer belt from multiple dimensions, keeps the stable reliability of conveyer belt operation, and guarantees the convenient and efficient and stable reliability of conveying operation.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and specifically to an adjustable idler roller for a belt conveyor. Background Technology

[0002] Belt conveyors are a type of bulk material transport equipment that has been developed for many years and is widely used in industries such as mining, ports, and metallurgy. With continuous technological advancements and changing societal needs, belt conveyors are increasingly capable of transporting longer distances. Compared to the traditional method of connecting multiple belt conveyors, single long-distance belt conveyors are more cost-effective and simpler to construct and maintain, thus leading to their increasingly widespread application.

[0003] Long-distance belt conveyors are typically all-terrain belt conveyors, designed to handle diverse environments such as mountains, rivers, and roads. To meet these environmental requirements, they are often installed in an elevated, integrated truss configuration. Large-span trusses effectively reduce the need for columns and foundations.

[0004] Cross-country belt conveyors typically feature long, large-radius vertical and horizontal curved sections. However, the integrated truss structure is usually straight. To reduce belt tension and increase belt life, it's necessary to adjust the idler height in the vertical curved sections to allow the conveyor belt to run along the vertical curve, and adjust the horizontal position and tilt angle of the idlers in the horizontal curved sections to allow the conveyor belt to run along the horizontal curve. Traditional idlers, however, are usually fixed in height, angle, and position, making them unsuitable for the actual needs of cross-country curved belt conveyors.

[0005] It is evident that current off-road belt conveyors still have room for improvement and should be optimized to enhance their adjustability in horizontal and inner arc sections, ensuring conveying capacity. This requires idlers to provide corresponding adjustment functions, thus necessitating the development of more reasonable technical solutions to address the existing technical problems. Utility Model Content

[0006] To overcome at least one of the aforementioned defects, this utility model proposes an adjustable idler roller for a belt conveyor, which aims to achieve horizontal and longitudinal position adjustment, satisfying the adaptability of the belt conveyor in horizontal and inner arc sections, thereby providing a more stable and reliable cross-country conveying capability.

[0007] To achieve the above objectives, the adjustable idler disclosed in this utility model can adopt the following solution: An adjustable idler roller for a belt conveyor includes a liftable support assembly. The bottom of the support assembly is connected to an adjustable steel plate, which can be adjusted laterally by sliding perpendicular to the conveying direction of the conveyor. The upper end of the support assembly is connected to a roller assembly, and both ends of the roller assembly are provided with adjustable brackets that cooperate with the support assembly. The adjustable brackets are provided with several connection positions for cooperating with the support assembly.

[0008] The aforementioned adjustable idler roller uses an adjustable steel plate as a support to support and adjust the roller assembly; according to the lateral sliding cooperation between the support assembly and the adjustable steel plate, the position of the support assembly in the lateral direction can be adjusted, thereby adjusting the position of the roller assembly in the lateral direction, and thus adjusting the horizontal curvature of the entire conveyor belt; through the cooperation between the adjustable bracket and the support assembly, the longitudinal rotation curvature of the roller assembly can be adjusted, thereby satisfying the adjustment of the inner arc segment.

[0009] Furthermore, the support assembly can be constructed in various forms to support the roller assembly, and its structure is not limited to a single type. Here, we optimize and propose one feasible option: the support assembly includes a lower support and an upper support, which are longitudinally movable and used to adjust the overall height of the support assembly. When adopting the above scheme, the lower and upper supports can be aligned and adjusted in height through support holes, and the height value of the support assembly can be locked by locking pins, thereby achieving height adjustment of the support assembly.

[0010] Furthermore, to facilitate the adjustment of the vertical curvature of the roller assembly and to increase the adjustment space between the support assembly and the roller assembly, an optimization is proposed, and one feasible option is suggested: the upper section of the upper support column forms an arc-shaped segment that bends towards the roller assembly. When adopting this scheme, the central angle corresponding to the arc-shaped segment is equal to the groove angle of the roller assembly, for example, it can be set to 30°.

[0011] Furthermore, the mating structure between the adjustable steel plate and the support assembly can adopt various schemes, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the adjustable steel plate is provided with transverse sliding holes, and connecting fasteners are provided at the transverse sliding holes to cooperate with the supporting foundation to adjust the position of the adjustable steel plate laterally. In the above scheme, the transverse sliding holes are oblong holes, and the fasteners pass through the transverse sliding holes to connect and fix with the supporting foundation. The transverse position of the adjustable steel plate can be changed by adjusting the tightness of the fasteners. In some schemes, the transverse sliding holes can also be round holes. By setting multiple round holes, the connection and cooperation between the adjustable steel plate and the supporting foundation can be achieved, thereby realizing transverse displacement.

[0012] Furthermore, the adjustable support can be constructed in various forms, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the adjustable support includes an adjusting part that cooperates with the support assembly and a connecting part that cooperates with the roller assembly. The adjusting part includes an arc-shaped adjusting surface, and the connecting parts are formed on the adjusting surface and evenly distributed at intervals. In this scheme, both the adjusting part and the connecting part are plate components, wherein the adjusting part is an arc-shaped plate and the connecting part is a straight plate. The adjusting part and the connecting part are formed by welding or integral molding.

[0013] Furthermore, the connecting part is connected to the top of the support assembly. The connection structure can adopt various schemes and is not limited to a single one. Here, we optimize and propose one feasible option: the connecting position on the connecting part includes connecting holes arranged in rows and columns. The connecting holes in the same column are evenly spaced along the adjustment circumference, and the central angle between adjacent adjustment holes is 2°. When using the above scheme, the connecting holes are fixed by using connecting bolts or connecting pins. In some schemes, the top of the support assembly is provided with an arc-shaped plate that fits against the connecting part. The arc-shaped plate has corresponding mating holes, which are aligned with the connecting holes and then fixed by connecting bolts or connecting pins.

[0014] Furthermore, the roller assembly supports the conveyor belt and limits its movement during transport to ensure smooth operation. Its structure is not uniquely limited; optimization is proposed here, suggesting one feasible option: the roller assembly includes a crossbeam tube with several bent sections forming a concave structure. Each bent section is connected to a roller, and stop rollers are also provided at both ends of the crossbeam tube. When using the above scheme, the crossbeam tube can be formed by connecting multiple tubes or by bending a single tube.

[0015] Furthermore, when setting the rollers, the rollers are arranged along the crossbeam tube, and the specific connection structure can be constructed in various forms, and its structure is not limited to one. Here, we optimize and propose one feasible option: the crossbeam tube is provided with a first middle support plate group, a second middle support plate group, and a side support plate for connecting the rollers. The first and second middle support plate groups extend in opposite directions at 180° in the material conveying direction, and the side support plates extend in the same direction as the second middle support plate group. In adjacent bending sections, the first and second middle support plate groups are spaced apart, and the side support plates are located at both ends of the crossbeam tube. When adopting the above scheme, the first, second, and side support plate groups are welded to the crossbeam tube, and the first, second, and side support plate groups are provided with slots for connecting and engaging the rollers.

[0016] Furthermore, when the conveyor belt is installed on the guide roller and bears the load, the stress on the crossbeam tube needs to be considered to maintain the stress balance of the crossbeam tube, which helps to improve the stability and reliability of the conveying. Here, optimization is carried out and one feasible option is proposed: the number of the first middle support plate group is less than the sum of the number of the second middle support plate group and the side support plate, the extension length of the first middle support plate group is greater than the extension length of the second middle support plate group, the first middle support plate group is equipped with rollers, and the second middle support plate group and the side support plate are jointly equipped with rollers and bear the load, the rollers on both sides of the crossbeam form a lever balance structure with the crossbeam tube as the center.

[0017] In one embodiment, the crossbeam tube comprises five bent sections, with a second middle support plate assembly installed on the middle and end bent sections, and a first middle support plate assembly installed on the other two sections, thereby forming a lever balance.

[0018] Furthermore, to maintain the stability of the conveyor belt and prevent it from deviating, an optimization is proposed, and one feasible option is suggested: guide roller frames are connected to both ends of the crossbeam tube, and the guide rollers are mounted on the guide roller frames. When using this solution, the guide rollers can be perpendicular to the ends of the crossbeam tube.

[0019] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include: This invention adjusts the horizontal curvature of the conveyor belt by adjusting the position of the support assembly in the lateral direction, thereby achieving lateral displacement of the roller assembly. Furthermore, the height of the roller assembly can be adjusted by raising and lowering the support assembly. The cooperation between the support assembly and the adjustable bracket also allows for adjustment of the vertical curvature of the roller assembly. This invention enables adjustment of the conveyor belt from multiple dimensions, maintaining stable and reliable operation and ensuring convenient, efficient, and reliable conveying operations. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view schematic diagram of an adjustable idler roller.

[0022] Figure 2 This is a top view of the adjustable idler roller.

[0023] Figure 3 This is a side view of the adjustable idler roller.

[0024] In the above attached figures, the meanings of each label are as follows: 1. Adjustable steel plate; 2. Lower support column; 3. Upper support column; 4. Adjustable bracket; 5. Crossbeam tube; 6. First middle support plate group; 7. Second middle support plate group; 8. Side support plate; 9. Roller; 10. Roller guard frame; 11. Roller guard; 12. Transverse sliding hole; 13. Connecting hole; 14. Support column hole. Detailed Implementation

[0025] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this embodiment.

[0026] In view of the fact that the existing conveyor belt structure is relatively fixed and simple, it is difficult to adapt well to complex conveying environments, and the conveying stability and reliability are poor, the following embodiments are optimized and overcome the defects of the existing technology.

[0027] Example like Figures 1-3 As shown, this embodiment provides an adjustable idler roller for a belt conveyor; it includes a liftable support assembly; the bottom of the support assembly is connected to an adjustable steel plate 1, which can be adjusted laterally by sliding vertically to the conveying direction of the conveyor; the upper end of the support assembly is connected to a roller assembly; both ends of the roller assembly are provided with adjustable brackets 4, which cooperate with the support assembly; the adjustable brackets 4 are provided with several connection positions for cooperating with the support assembly.

[0028] The adjustable roller 9 disclosed in this embodiment supports the roller assembly using an adjustable steel plate 1. The roller assembly is adjusted by the lateral sliding cooperation between the support assembly and the adjustable steel plate 1. This allows for adjustment of the lateral position of the support assembly, thereby adjusting the lateral position of the roller assembly and consequently the horizontal curvature of the entire conveyor belt. Furthermore, the adjustable bracket 4, in cooperation with the support assembly, allows for adjustment of the longitudinal rotation curvature of the roller assembly, thus satisfying the adjustment of the inner arc segment.

[0029] The support column assembly can be constructed in various forms to support the roller assembly; its structure is not uniquely limited; this embodiment optimizes and adopts one feasible option: the support column assembly includes a lower support column 2 and an upper support column 3; the lower support column 2 and the upper support column 3 are movably coupled in the longitudinal direction to adjust the overall height of the support column assembly. When the above scheme is adopted, the lower support column 2 and the upper support column 3 can be aligned and adjusted in height through the support hole 14 and the height value of the support column assembly is locked by the locking pin; thereby realizing the height adjustment of the support column assembly.

[0030] To make the adjustment of the vertical curvature of the roller assembly more convenient and to increase the adjustment space between the support assembly and the roller assembly, this embodiment is optimized and adopts one of the feasible options: the upper section of the upper support 3 forms an arc-shaped section that bends toward the roller assembly.

[0031] Preferably, in this embodiment, the central angle corresponding to the arc segment is equal to the groove angle of the roller group; specifically, the central angle corresponding to the arc segment is 30°.

[0032] The mating structure between the adjustable steel plate 1 and the support assembly can adopt various schemes; its structure is not limited to a single one; this embodiment optimizes and adopts one feasible option: the adjustable steel plate 1 is provided with a transverse sliding hole 12; a connecting fastener is provided at the transverse sliding hole 12 and cooperates with the support foundation to adjust the position of the adjustable steel plate 1 laterally. When adopting the above scheme; the transverse sliding hole 12 is an oblong hole; the fastener passes through the transverse sliding hole 12 and is connected and fixed to the support foundation. In some schemes; the transverse sliding hole 12 can also be a round hole; by setting multiple round holes, the connection and cooperation between the adjustable steel plate 1 and the support foundation can be achieved, thereby realizing the lateral displacement of the adjustable steel plate 1.

[0033] The adjustable support 4 can be constructed in various forms; its structure is not limited to a single one; this embodiment optimizes and adopts one feasible option: the adjustable support 4 includes an adjusting part that cooperates with the support column assembly and a connecting part that cooperates with the roller assembly; the adjusting part includes an arc-shaped adjusting surface; the connecting parts are formed on the adjusting surface and are evenly distributed on the adjusting surface. When the above scheme is adopted; both the adjusting part and the connecting part are plate parts; wherein the adjusting part is an arc-shaped plate; the connecting part is a straight plate; the adjusting part and the connecting part are formed by welding; or integrally formed.

[0034] The connecting part is connected to the top of the support assembly; the connecting structure can adopt various schemes; its structure is not limited to one; this embodiment optimizes and adopts one feasible option: the connecting position on the connecting part includes connecting holes 13 arranged in rows and columns; the connecting holes 13 in the same column are evenly spaced along the adjustment circumference; the central angle between adjacent adjustment holes is 2°. When the above scheme is adopted; the connecting holes 13 are fixed by setting connecting bolts or connecting pins. In some schemes; the top of the support assembly is provided with an arc-shaped plate that fits with the connecting part; the arc-shaped plate is provided with corresponding mating holes; after the mating holes and connecting holes 13 are aligned, they are fixed by connecting bolts or connecting pins.

[0035] The roller assembly supports the conveyor belt and also limits its movement during transport to ensure smooth operation. Its structure is not uniquely limited; this embodiment optimizes the design and adopts one feasible option: the roller assembly includes a crossbeam tube 5; the crossbeam tube 5 includes several bent sections forming a concave structure; each bent section is connected to a roller 9; and stop rollers 11 are also provided at both ends of the crossbeam tube 5. When using the above scheme, the crossbeam tube 5 can be formed by connecting multiple tubes or by bending a single tube.

[0036] When setting the roller 9, the roller 9 is arranged along the crossbeam tube 5. The specific connection structure can be constructed in various forms; its structure is not limited to one. This embodiment optimizes and adopts one feasible option: the crossbeam tube 5 is provided with a first middle support plate group 6, a second middle support plate group 7, and a side support plate 8 for connecting the roller 9. The first middle support plate group 6 and the second middle support plate group 7 extend in opposite directions at 180° in the material conveying direction. The side support plate 8 extends in the same direction as the second middle support plate group 7. In adjacent bending sections, the first middle support plate group 6 and the second middle support plate group 7 are spaced apart. The side support plate 8 is set at both ends of the crossbeam tube 5. When adopting the above scheme, the first middle support plate group 6, the second middle support plate group 7, and the side support plate 8 are welded to the crossbeam tube 5. The first middle support plate group 6, the second middle support plate group 7, and the side support plate 8 are provided with slots for connecting and engaging the roller 9.

[0037] When the conveyor belt is installed on the guide roller 9 and bears the load, the stress on the crossbeam tube 5 needs to be considered. Maintaining the stress balance of the crossbeam tube 5 helps to improve the stability and reliability of the conveyor. This embodiment optimizes and adopts one of the feasible options: the number of the first middle support plate group 6 is less than the sum of the number of the second middle support plate group 7 and the side support plate 8; the extension length of the first middle support plate group 6 is greater than the extension length of the second middle support plate group 7; the first middle support plate group 6 is equipped with rollers 9; and after the second middle support plate group 7 and the side support plate 8 are jointly equipped with rollers 9 and bear the load, the rollers 9 on both sides of the crossbeam form a lever balance structure with the crossbeam tube 5 as the center.

[0038] In one embodiment, the crossbeam tube 5 comprises five bent sections; a second middle support plate group 7 is provided on the middle bent section and the bent sections at both ends; and a first middle support plate group 6 is provided on the other two sections, thereby forming a lever balance.

[0039] To maintain the smoothness of the conveyor belt and prevent it from deviating, this embodiment optimizes the process by employing one feasible option: guide roller frames 10 are connected to both ends of the crossbeam tube 5; guide rollers 11 are mounted on the guide roller frames 10. When using the above solution, the guide rollers 11 can be perpendicular to the ends of the crossbeam tube 5.

[0040] Here is a practical example to illustrate the adjustable idler disclosed in the above embodiments.

[0041] like Figure 1 , Figure 2 , Figure 3The diagram shows an adjustable idler roller for a belt conveyor. An adjustable steel plate 1 is arranged at the bottom of the idler roller; the bottom of the adjustable steel plate 1 has a transverse elongated hole, allowing adjustment of the idler roller's transverse position. A lower support column 2 is welded above the adjustable steel plate 1; the lower support column 2 has two vertically arranged through holes with a spacing of 42 mm and a diameter of Φ14 mm on its side. An upper support column 3 has seven vertically arranged through holes with a spacing of 21 mm and a diameter of Φ14 mm on its side. The upper support column 3 and the lower support column 2 are connected by two M12 bolts. The bending angle γ at the middle of the upper support column 3 is 30°. The top connecting plate of the upper support column 3 has two through holes with a diameter of Φ14 mm.

[0042] The adjustable bracket 4 is welded from a connecting plate and an adjusting plate. The adjusting plate has a bending radius of 750mm and two rows of through holes; the interval between each row of through holes is 2°; the hole diameter is Φ14mm. The adjustable bracket 4 and the upper support column 3 are connected by two M12 bolts. The crossbeam tube 5 has four bends; each bend angle is 30°. The crossbeam tube 5 and the adjustable bracket 4 are welded together.

[0043] The crossbeam tube 5 has a first and a second middle support plate in its middle section. The second middle support plate is 100mm longer than the first middle support plate; it is used to balance the pressure on both sides of the crossbeam tube 5. Side support plates 8 are welded to both ends of the crossbeam tube 5; their length is the same as that of the first middle support plate. Five rollers are connected to the second middle support plate, the first middle support plate, and the side support plates, respectively.

[0044] The roller retainer 10 is welded to the outside of the side support plate 8; the roller retainer 11 is placed above the roller retainer.

[0045] The above are the embodiments listed in this example; however, this example is not limited to the optional embodiments described above; those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments; anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example; the scope of protection of this example should be determined by the claims.

Claims

1. An adjustable idler roller for a belt conveyor, characterized in that: The system includes a liftable support assembly, the bottom of which is connected to an adjustable steel plate (1), which slides laterally perpendicular to the conveying direction of the conveyor; the upper end of the support assembly is connected to a roller assembly, and the two ends of the roller assembly are provided with adjustable brackets (4) and cooperate with the support assembly through the adjustable brackets (4); the adjustable brackets (4) are provided with several connection positions for cooperating with the support assembly.

2. The adjustable idler roller of the belt conveyor according to claim 1, characterized in that: The support assembly includes a lower support (2) and an upper support (3), wherein the lower support (2) and the upper support (3) are movable in the longitudinal direction to adjust the overall height of the support assembly.

3. The adjustable idler roller of the belt conveyor according to claim 2, characterized in that: The upper section of the upper support (3) forms an arc-shaped section that bends toward the roller assembly.

4. The adjustable idler roller of the belt conveyor according to claim 1, 2, or 3, characterized in that: The adjustable steel plate (1) is provided with a transverse sliding hole (12), and a connecting fastener is provided at the transverse sliding hole (12) and cooperates with the support base to adjust the position of the adjustable steel plate (1) in the transverse direction.

5. The adjustable idler roller of the belt conveyor according to claim 1, characterized in that: The adjustable support (4) includes an adjustment part that cooperates with the support assembly and a connecting part that cooperates with the roller assembly. The adjustment part includes an arc-shaped adjustment surface, and the connecting parts are formed on the adjustment surface and are evenly distributed on the adjustment surface.

6. The adjustable idler roller of the belt conveyor according to claim 5, characterized in that: The connecting part includes connecting holes (13) arranged in rows and columns. The connecting holes (13) in the same column are evenly spaced along the circumference of the adjustment surface, and the central angle between adjacent adjustment holes is 2°.

7. The adjustable idler roller of the belt conveyor according to claim 1, characterized in that: The roller assembly includes a crossbeam tube (5), which includes several bent sections and forms a concave structure. Each bent section is connected to a roller (9), and the two ends of the crossbeam tube (5) are also provided with stop rollers (11).

8. The adjustable idler roller of the belt conveyor according to claim 7, characterized in that: The crossbeam tube (5) is provided with a first middle support plate group (6), a second middle support plate group (7) and a side support plate (8) for connecting rollers (9). The first middle support plate group (6) and the second middle support plate group (7) extend in opposite directions at 180° in the material conveying direction. The side support plate (8) extends in the same direction as the second middle support plate group (7). In adjacent bending sections, the first middle support plate group (6) and the second middle support plate group (7) are spaced apart. The side support plate (8) is provided at both ends of the crossbeam tube (5).

9. The adjustable idler roller of the belt conveyor according to claim 8, characterized in that: The number of the first middle support plate group (6) is less than the sum of the number of the second middle support plate group (7) and the side support plate (8). The extension length of the first middle support plate group (6) is greater than the extension length of the second middle support plate group (7). The first middle support plate group (6) is equipped with rollers (9), and the second middle support plate group (7) and the side support plate (8) are equipped with rollers (9) and bear the load. The rollers (9) on both sides of the crossbeam form a lever balance structure with the crossbeam tube (5) as the center.

10. The adjustable idler roller of the belt conveyor according to claim 7, characterized in that: The two ends of the crossbeam tube (5) are connected to a roller frame (10), and the roller (11) is mounted on the roller frame (10).

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