Belt conveyor

Abstract

The utility model provides a belt conveyor which comprises a belt, a machine frame, a carrier roller assembly and a driving mechanism, the carrier roller assembly is fixedly installed on the machine frame and used for supporting the belt, the driving mechanism is used for driving the belt to rotate, the machine frame comprises a first machine frame body, a second machine frame body and a sub-machine frame body, and the first machine frame body and the second machine frame body are fixedly connected through the sub-machine frame body. The sub-rack is provided with a plurality of first connecting holes and a plurality of second connecting holes, the first connecting holes are formed in the length direction of the sub-rack, and the second connecting holes are formed in the length direction of the sub-rack and located in the two ends of the sub-rack correspondingly; the distance between the two first connecting holes is smaller than the distance between the two second connecting holes, when the rack is in a conveying state, the first rack and the second rack are fixedly connected to the sub-racks through the first connecting holes correspondingly, and when the rack is in a working state, the second rack is fixedly connected to the sub-racks through the second connecting holes correspondingly. The first rack and the second rack are fixedly connected to the sub-racks through the second connecting holes respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyors, in particular to a belt conveyor. Background Art

[0002] Belt conveyors offer advantages such as high conveying capacity, simple structure, easy maintenance, and standardized components. They are widely used in industries such as mining, metallurgy, and coal mining to transport both bulk materials and finished goods. Belt conveyors are of considerable length and comprise a complex set of components. Their main structure is typically a steel or truss frame, upon which idlers, drive rollers, and bend pulleys are mounted. These idlers and pulleys collectively support the conveyor belt.

[0003] The structure and length of belt conveyors often make them difficult to pre-install and pre-adjust on-site. For example, in a concrete mixing station, the structure of this type of product means that the length of the loading belt conveyor after assembly cannot be controlled within 12 meters, which means it cannot meet the length requirements for container transportation. Large-scale on-site assembly of belt conveyors will incur significant labor costs and installation quality risks. Existing belt conveyors mainly use vertical folding to shorten the conveyor length, which facilitates container transportation. However, this method cannot avoid inverting some rollers, and rollers are generally fixed by gravity and tension. If they are inverted, there is a risk of them falling off. Utility Model Content

[0004] The utility model aims to provide a belt conveyor to solve the risk of rollers falling off caused by roller inversion when the existing conveyor is deformed.

[0005] The utility model provides a belt conveyor, comprising a belt, a frame, a roller assembly and a driving mechanism, the roller assembly is fixedly mounted on the frame, the roller assembly is used to support the belt, and the driving mechanism is used to drive the belt to rotate, the frame comprises a first frame, a second frame and a sub-frame, the first frame and the second frame are fixedly connected through the sub-frame, the sub-frame is provided with a first connecting hole and a second connecting hole, the first connecting hole is provided with a plurality of first connecting holes, the first connecting holes are arranged along the length direction of the sub-frame, the second connecting holes are provided with a plurality of second connecting holes, the distance between two first connecting holes is smaller than the distance between two second connecting holes, when the frame is in a transport state, the first frame and the second frame are respectively fixedly connected to the sub-frame through one of the first connecting holes, when the frame is in a working state, the first frame and the second frame are respectively fixedly connected to the sub-frame through one of the second connecting holes, the second connecting holes are arranged along the length direction of the sub-frame and are respectively located at two ends of the sub-frame.

[0006] In one embodiment of the present invention, in a direction perpendicular to the length direction of the rack, the cross-sectional shape of the first rack is the same as the cross-sectional shape of the second rack, the cross-sectional shape of the sub-rack is similar to the cross-sectional shape of the first rack, the first rack is sleeved on the sub-rack, and the second rack is sleeved on the sub-rack.

[0007] In one embodiment of the present invention, the first frame includes a first plate segment, a second plate segment, and a third plate segment connected in sequence, the first plate segment, the second plate segment, and the third plate segment enclosed to form a receiving groove, the sub-frame includes a fourth plate segment, a fifth plate segment, and a sixth plate segment, the sub-frame is placed in the receiving groove, and the fourth plate segment is in surface contact with the first plate segment, the fifth plate segment is in surface contact with the second plate segment, and the sixth plate segment is in surface contact with the third plate segment.

[0008] In an embodiment of the present invention, the first frame, the second frame and the sub-frame are all U-shaped bent plates, the first plate segment is parallel to the third plate segment, and the fourth plate segment is parallel to the sixth plate segment.

[0009] In an embodiment of the present invention, the ratio of the distance between two of the first connection holes to the distance between two of the second connection holes is 1:3 to 1:8.

[0010] In an embodiment of the present invention, the first connecting hole and the second connecting hole are both opened in the fifth plate segment.

[0011] In one embodiment of the present invention, the driving mechanism includes a transmission roller and a redirecting roller both connected to the belt, the transmission roller is located on one side of the frame and is rotatably connected to the frame, and the redirecting roller is located on the other side of the frame and is rotatably connected to the frame.

[0012] In one embodiment of the present invention, the roller assembly includes a plurality of roller units arranged in sequence along the length direction of the frame, and the roller unit includes a first roller, a second roller, and a third roller arranged in an arc shape.

[0013] In one embodiment of the present invention, a support plate is installed on the outer side of the first roller, a connecting frame is installed between the first roller and the second roller, the connecting frame is installed between the second roller and the third roller, the support plate is installed on the outer side of the third roller, the bottom of the support plate and the bottom of the connecting frame are fixedly connected to the frame, and the first roller, the second roller and the third roller are connected to the belt.

[0014] In the belt conveyor of the present invention, the first frame and the second frame are relatively fixedly connected via a sub-frame, and the sub-frame is provided with a first connection hole and a second connection hole. When both the first frame and the second frame are connected to the first connection hole, the frame can be placed in a transport state. When both the first frame and the second frame are connected to the second connection hole, the frame can be placed in a working state. The overall lengths of the frames in the two states are different, which can prevent the overall deformation of the belt conveyor to the point where the rollers are inverted in the transport state, resulting in the risk of the rollers falling off. This deformable belt conveyor structure can be deformed after pre-assembly in the factory to reduce the overall dimensions in the transport state, and can be deformed without disassembling major components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the belt conveyor of the present utility model in a working state.

[0016] Figure 2 It is a structural schematic diagram of the belt conveyor of the present utility model in the transport state.

[0017] Figure 3 This is a schematic structural diagram of the sub-frame of the belt conveyor of the present utility model.

[0018] Figure 4 for Figure 1 Cross-sectional view of AA in the figure.

[0019] Description of reference numerals:

[0020] 10-belt, 20-frame, 21-first frame, 211-first plate segment, 212-second plate segment, 213-third plate segment, 22-second frame, 23-sub-frame, 231-first connecting hole, 232-second connecting hole, 233-fourth plate segment, 234-fifth plate segment, 235-sixth plate segment, 30-roller unit, 40-drive roller, 50-redirecting roller. DETAILED DESCRIPTION

[0021] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] The utility model provides a belt conveyor, such as Figure 1-3As described above, a belt conveyor according to an embodiment includes a belt 10, a frame 20, a roller assembly and a driving mechanism. The roller assembly is fixedly mounted on the frame 20, and the roller assembly is used to support the belt 10. The driving mechanism is used to drive the belt 10 to rotate. The frame 20 includes a first frame 21, a second frame 22 and a sub-frame 23. The first frame 21 and the second frame 22 are fixedly connected through the sub-frame 23. The sub-frame 23 is provided with a first connecting hole 231 and a second connecting hole 232. There are a plurality of first connecting holes 231, and the first connecting holes 231 are arranged along the length direction of the sub-frame 23. There are a plurality of second connecting holes 232, and the second connecting holes 232 are arranged along the length direction of the sub-frame 23 and are respectively located at both ends of the sub-frame 23. When the frame 20 is in a transport state, as shown in FIG. Figure 2 As shown, the first rack 21 and the second rack 22 are fixedly connected to the sub-rack 23 through a first connecting hole 231 respectively; when the rack 20 is in working state, as shown in FIG. Figure 1 As shown, the first rack 21 and the second rack 22 are respectively fixedly connected to the sub-rack 23 through a second connection hole 232 ; the distance between the two first connection holes 231 is smaller than the distance between the two second connection holes 232 .

[0023] Specifically, in this embodiment, the sub-frame 23 defines two first connection holes 231 and two second connection holes 232. The two first connection holes 231 and the two second connection holes 232 are spaced apart along the length of the sub-frame 23, with the two first connection holes 231 located between the two second connection holes 232. The distance between the two first connection holes 231 is L1, and the distance between the two second connection holes 232 is L2, with L2 being much greater than L1. The first frame 21 has a first mounting hole that mates with the first and second connection holes 231, 232; the second frame 22 has a third mounting hole that mates with the first and second connection holes 231, 232. When the rack 20 is in the transport state, the first mounting hole corresponds to one of the first connection holes 231, and the second mounting hole corresponds to another of the first connection holes 231. Fasteners such as bolts or screws are placed between the first mounting hole and the first connection hole 231 to securely connect the first rack 21 to the sub-rack 23. Fasteners such as bolts or screws are placed between the second mounting hole and the first connection hole 231 to securely connect the second rack 22 to the sub-rack 23. When the rack 20 is in the operating state, the first mounting hole corresponds to one of the second connection holes 232, and the second mounting hole corresponds to one of the second connection holes 232. Fasteners such as bolts or screws are placed between the first mounting hole and the second connection hole 232 to securely connect the first rack 21 to the sub-rack 23. Fasteners such as bolts or screws are placed between the second mounting hole and the second connection hole 232 to securely connect the second rack 22 to the sub-rack 23. During the switching process between the working state and the transport state, the frame 20 is deformed after being pre-assembled in the factory to reduce the outline size in the transport state. This deformation does not require disassembly of the main components, but only requires removal of the fasteners at the mounting holes and connection holes to achieve the deformation of the entire belt conveyor.

[0024] In the belt conveyor of the present invention, the first frame 21 and the second frame 22 are relatively fixedly connected via a sub-frame 23, and the sub-frame 23 is provided with a first connection hole 231 and a second connection hole 232. When both the first frame 21 and the second frame 22 are connected to the first connection hole 231, the frame 20 can be placed in a transport state. When both the first frame 21 and the second frame 22 are connected to the second connection hole 232, the frame 20 can be placed in a working state. The overall lengths of the frames 20 in the two states are different, which can prevent the overall deformation of the belt conveyor to the point where the rollers are inverted in the transport state, causing the rollers to fall off. This deformable belt conveyor structure can be deformed after pre-assembly in the factory to reduce the profile in the transport state, and can be deformed without disassembling major components.

[0025] It should be noted that the length direction of the rack 20 is parallel to the length directions of the first rack 21 , the second rack 22 , and the sub-rack 23 .

[0026] In this embodiment, Figure 4 As shown, in a direction perpendicular to the length of the frame 20, the cross-sectional shape of the first frame 21 is the same as that of the second frame 22, and the cross-sectional shape of the sub-frame 23 is similar to that of the first frame 21. The first frame 21 is sleeved on the sub-frame 23, and the second frame 22 is sleeved on the sub-frame 23. The cross-sectional shape of the sub-frame 23 is slightly smaller than that of the first frame 21 and the second frame 22, and can be accommodated within the first frame 21 and the second frame 22.

[0027] In this embodiment, the first frame 21 includes a first plate segment 211, a second plate segment 212, and a third plate segment 213 connected in sequence. The first plate segment 211, the second plate segment 212, and the third plate segment 213 enclose a receiving slot. The sub-frame 23 includes a fourth plate segment 233, a fifth plate segment 234, and a sixth plate segment 235. The sub-frame 23 is placed in the receiving slot, with the fourth plate segment 233 in surface contact with the first plate segment 211, the fifth plate segment 234 in surface contact with the second plate segment 212, and the sixth plate segment 235 in surface contact with the third plate segment 213. Similarly, the second frame 22 includes a seventh plate segment 233, an eighth plate segment, and a ninth plate segment connected in sequence. The seventh plate segment, the eighth plate segment, and the ninth plate segment enclose a receiving slot. The sub-frame 23 is placed in the receiving slot of the second frame 22, with the fourth plate segment 233 in surface contact with the seventh plate segment, the fifth plate segment 234 in surface contact with the eighth plate segment, and the sixth plate segment 235 in surface contact with the ninth plate segment.

[0028] Specifically, the first frame 21, the second frame 22, and the sub-frame 23 are all U-shaped bent plates. The first plate segment 211 is parallel to the third plate segment 213, and both the first plate segment 211 and the third plate segment 213 are perpendicular to the second plate segment 212. The fourth plate segment 233 is parallel to the sixth plate segment 235, and both the fourth plate segment 233 and the sixth plate segment 235 are perpendicular to the fifth plate segment 234.

[0029] It is understood that in another embodiment, the first plate segment 211 and the second plate segment 212 intersect at a first angle, and the third plate segment 213 intersects at a second angle with the second plate segment 212. The side of the first plate segment 211 facing away from the second plate segment 212 and the side of the third plate segment 213 facing away from the second plate segment 212 are close to each other. The sub-rack 23 can be accommodated in the receiving slots of the first rack 21 and the second rack 22, and the structural shape of the sub-rack 23 matches the first rack 21 and the second rack 22.

[0030] In this embodiment, the ratio of the distance L1 between the two first connection holes 231 to the distance L2 between the two second connection holes 232 is 1:8 to 1:3. Those skilled in the art may set the ratio of the distance L1 between the two first connection holes 231 to the distance L2 between the two second connection holes 232 to 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, etc. according to actual conditions, and this is not limited here.

[0031] In this embodiment, the first connecting hole 231 and the second connecting hole 232 are both opened in the fifth plate segment 234 .

[0032] In another preferred embodiment, the first connection holes 231 are formed in the fourth plate segment 233 and / or the sixth plate segment 235, and the second connection holes 232 are formed in the fourth plate segment 233 and / or the sixth plate segment 235. Specifically, there are four first connection holes 231 and four second connection holes 232. Two first connection holes 231 are located in the fourth plate segment 233, and the other two first connection holes 231 are located in the sixth plate segment 235. The first connection holes 231 located in the fourth and sixth plate segments 233 and 235 correspond to each other in the longitudinal direction (vertical direction) of the sub-rack 23. Two second connection holes 232 are located in the fourth plate segment 233, and the other two second connection holes 232 are located in the sixth plate segment 235. The second connection holes 232 located in the fourth and sixth plate segments 233 and 235 correspond to each other in the longitudinal direction (vertical direction) of the sub-rack 23. The first frame 21 has first mounting holes that mate with each first connection hole 231 or each second connection hole 232, and the second frame 22 has second mounting holes that mate with each first connection hole 231 or each second connection hole 232. There are two first mounting holes and two second mounting holes, respectively located in the first plate segment 211 and the third plate segment 213, and two second mounting holes located in the seventh plate segment and the ninth plate segment.

[0033] In this embodiment, the drive mechanism includes a drive roller 40 and a bend roller 50, both of which are connected to the belt 10. The drive roller 40 is located on one side of the frame 20 and is rotatably connected to the frame 20. The bend roller 50 is located on the other side of the frame 20 and is rotatably connected to the frame 20. The belt 10 is caused to circulate through the drive roller 40 and the bend roller 50.

[0034] In this embodiment, the roller assembly includes a plurality of roller units 30 arranged in sequence along the length of the frame 20. The roller unit 30 includes a first roller, a second roller, and a third roller arranged in an arc shape. A support plate is installed on the outside of the first roller, a connecting frame is installed between the first roller and the second roller, a connecting frame is installed between the second roller and the third roller, and a support plate is installed on the outside of the third roller. The bottom of the support plate and the bottom of the connecting frame are both fixedly connected to the frame 20. The first roller, the second roller, and the third roller are connected to the belt 10. It should be noted that the first roller and the third roller are both rotatably connected to the support plate, and the first roller, the second roller, and the third roller are all rotatably connected to the connecting frame.

[0035] Description of the working process: The driving mechanism is used to drive the belt 10 to rotate, and the roller assembly is used to support the belt 10. The interval between the roller units 30 and the number of the roller units 30 are determined according to the length direction of the frame 20. The belt 10 is supported by the roller unit 30 to prevent the belt 10 from falling and deforming prematurely, and at the same time enable the belt 10 to withstand heavier materials, thereby extending the service life of the belt 10. In addition, the advantage of designing the first roller, the second roller and the third roller into an arc shape is that the belt 10 can transport relatively thicker and more materials. The side of the existing belt 10 for transporting materials is in a horizontal plane. When transporting materials, the materials are easy to fall out from both sides of the belt 10. Designing the first roller, the second roller and the third roller into an arc shape makes the belt 10 also in an arc shape. The two sides of the arc-shaped belt 10 are tilted upward so that the materials will not easily fall out from both sides of the belt 10.

[0036] In another preferred embodiment, there can be two or more sub-racks 23. Taking two sub-racks 23 as an example, the rack 20 includes a first rack 21, a second rack 22, and a third rack. The first rack 21 and the second rack 22 are relatively fixedly connected via a sub-rack 23, and the second rack 22 and the third rack are relatively fixedly connected via a sub-rack 23. In this embodiment, by utilizing multiple main racks (the first rack 21, the second rack 22, and the third rack) and multiple sub-racks 23, the overall structure can achieve a greater degree of deformation.

[0037] In this document, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms based on specific circumstances.

[0038] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description. Therefore, they should not be understood as limitations on the present invention.

[0039] As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A belt conveyor, characterized in that: The invention comprises a belt (10), a frame (20), a roller assembly and a driving mechanism, wherein the roller assembly is fixedly mounted on the frame (20), the roller assembly is used to support the belt (10), and the driving mechanism is used to drive the belt (10) to rotate. The frame (20) comprises a first frame (21), a second frame (22) and a sub-frame (23), the first frame (21) and the second frame (22) are fixedly connected through the sub-frame (23), the sub-frame (23) is provided with a first connecting hole (231) and a second connecting hole (232), the first connecting hole (231) has a plurality of first connecting holes (231), and the first connecting holes (231) are arranged along the length direction of the sub-frame (23), There are a plurality of second connection holes (232), which are arranged along the length direction of the sub-frame (23) and are respectively located at both ends of the sub-frame (23). When the frame (20) is in a transport state, the first frame (21) and the second frame (22) are respectively fixedly connected to the sub-frame (23) through one of the first connection holes (231). When the frame (20) is in a working state, the first frame (21) and the second frame (22) are respectively fixedly connected to the sub-frame (23) through one of the second connection holes (232). The distance between the two first connection holes (231) is smaller than the distance between the two second connection holes (232).

2. The belt conveyor according to claim 1, characterized in that In a direction perpendicular to the length direction of the frame (20), the cross-sectional shape of the first frame (21) is the same as the cross-sectional shape of the second frame (22), the cross-sectional shape of the sub-frame (23) is similar to the cross-sectional shape of the first frame (21), the first frame (21) is sleeved on the sub-frame (23), and the second frame (22) is sleeved on the sub-frame (23).

3. The belt conveyor according to claim 2, characterized in that The first frame (21) comprises a first plate segment (211), a second plate segment (212) and a third plate segment (213) connected in sequence, the first plate segment (211), the second plate segment (212) and the third plate segment (213) enclosed to form a receiving groove, the sub-frame (23) comprises a fourth plate segment (233), a fifth plate segment (234) and a sixth plate segment (235), the sub-frame (23) is placed in the receiving groove, and the fourth plate segment (233) is in surface contact with the first plate segment (211), the fifth plate segment (234) is in surface contact with the second plate segment (212), and the sixth plate segment (235) is in surface contact with the third plate segment (213).

4. The belt conveyor according to claim 3, characterized in that The first frame (21), the second frame (22) and the sub-frame (23) are all U-shaped bent plates, the first plate segment (211) is parallel to the third plate segment (213), and the fourth plate segment (233) is parallel to the sixth plate segment (235).

5. The belt conveyor according to claim 3, characterized in that: The ratio of the distance between the two first connection holes (231) to the distance between the two second connection holes (232) is 1:8 to 1:

3.

6. The belt conveyor according to claim 3, characterized in that The first connecting hole (231) and the second connecting hole (232) are both opened in the fifth plate section (234).

7. The belt conveyor according to claim 1, wherein: The driving mechanism comprises a transmission roller (40) and a redirecting roller (50) both connected to the belt (10); the transmission roller (40) is located on one side of the frame (20) and is rotatably connected to the frame (20); the redirecting roller (50) is located on the other side of the frame (20) and is rotatably connected to the frame (20).

8. The belt conveyor according to claim 1, wherein: The roller assembly comprises a plurality of roller units (30) arranged in sequence along the length direction of the frame (20), and the roller unit (30) comprises a first roller, a second roller, and a third roller arranged in an arc shape.

9. The belt conveyor according to claim 8, characterized in that A support plate is installed on the outer side of the first roller, a connecting frame is installed between the first roller and the second roller, the connecting frame is installed between the second roller and the third roller, the support plate is installed on the outer side of the third roller, the bottom of the support plate and the bottom of the connecting frame are fixedly connected to the frame (20), and the first roller, the second roller and the third roller are connected to the belt (10).

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