A heavy belt conveyor and a deviation preventing device of the heavy belt conveyor

Abstract

The utility model provides a kind of heavy belt conveyor's anti-deviation device and heavy belt conveyor, it is related to heavy belt conveyor field, the scheme used is: including constraint frame, the upper and lower ends of the constraint frame are respectively connected with the support frame and drive frame of heavy belt conveyor, constraint idler is rotatably arranged on the constraint frame, multiple constraint idlers are arranged along the length direction of the constraint frame, multiple constraint idlers are respectively located at the both sides of belt overhang portion, the axial direction of the constraint idler is consistent with the width direction of belt.The utility model can be constrained along the thickness direction of belt, greatly reduce shaking, avoid its deviation.

Description

Technical Field

[0001] This utility model relates to the field of heavy-duty belt conveyors, and in particular to an anti-deviation device for a heavy-duty belt conveyor and a heavy-duty belt conveyor. Background Technology

[0002] Heavy-duty belt conveyors often need to achieve long-distance transport of kilometers and heavy loads of tens of thousands of tons per hour (such as iron ore unloading belt conveyors in ports). The drive rollers need to provide sufficient traction. The drive motors that power the drive rollers are often large in size and heavy in weight. To ensure their support, large and strong supports are often built at the belt head. However, there is still a risk of insufficient support strength during use.

[0003] In the prior art, Chinese utility model patent with authorization announcement number CN220448808 U provides a permanent magnet electric roller belt conveyor head device. The permanent magnet electric roller belt conveyor head device includes a frame, an unloading frame, a tensioning frame, a permanent magnet electric roller, an unloading roller, an idler roller, and a tensioning roller. The frame is installed on the ground, the permanent magnet electric roller is installed at the lower part of the frame, and the unloading frame is installed at the upper end of the frame near the permanent magnet electric roller and protrudes outside the frame. In this solution, the permanent magnet electric roller, i.e., the drive roller, is located at the lower part of the frame. The belt winds down from the unloading roller around the drive roller and then returns to the idler roller on the belt conveyor via the tensioning roller. With this arrangement, there is no need to set up a separate support for the drive motor, which improves the safety of use.

[0004] When using the above technical solutions, in certain working conditions of heavy-duty belt conveyors, the belt is high above the ground, and the distance from the upper support frame to the drive drum is longer. This part of the belt is suspended. When the drive motor starts or stops, the force balance of the belt is broken, causing vibration. During the vibration, the contact position between the belt and the drive drum will momentarily shift (such as the belt lifting up locally or tilting to one side), resulting in inconsistent contact pressure between different areas of the belt and the drive drum surface, forming a difference in lateral friction, causing the belt to run off-track, and affecting the stability of the system. Utility Model Content

[0005] In order to solve the technical problem of belt vibration and deviation caused by the start-up and shutdown of heavy belt conveyors in the prior art, this utility model provides a device for preventing deviation of heavy belt conveyors and a heavy belt conveyor, which can constrain the belt, greatly reduce vibration, and greatly prevent deviation.

[0006] In a first aspect, this utility model provides an anti-deviation device for a heavy-duty belt conveyor to solve the above-mentioned technical problems. The device includes a constraint frame, the upper and lower ends of which are respectively connected to the support frame and the drive frame of the heavy-duty belt conveyor. A constraint roller is rotatably mounted on the constraint frame. Multiple constraint rollers are arranged along the length of the constraint frame. The multiple constraint rollers are located on both sides of the suspended part of the belt. The axial direction of the constraint rollers is consistent with the width direction of the belt.

[0007] This invention uses a constraint frame and multiple alternately arranged constraint rollers to constrain the thickness of the suspended belt, ensuring that the belt always moves within a relatively stable vertical plane. Furthermore, when the belt contacts the constraint rollers, it drives the contact rollers to rotate, achieving energy transfer and fundamentally reducing the belt's kinetic energy. This significantly reduces belt vibration during startup and shutdown, preventing uneven contact between the belt and the drive rollers, and thus greatly minimizing belt misalignment.

[0008] Furthermore, the constraint frame includes two opposing support beams, with multiple base plates arranged along their length on the support beams. The base plates on the two support beams, on which the same constraint roller is mounted, are arranged opposite each other. A support seat is provided on the base plate, and one end of the support seat is provided with an upward-facing receiving groove. The constraint roller is rotatably provided with a support shaft, and both ends of the support shaft are located in the corresponding receiving grooves. A limit plate is also detachably provided at the end of the support seat, spanning the receiving groove, with the lower side of the limit plate close to the constraint roller.

[0009] This utility model, through the combination of a limiting plate and a support base, facilitates the disassembly and assembly of the constraint roller, thereby improving maintenance convenience.

[0010] Furthermore, the bottom of the receiving groove and the surface opposite to the support shaft have an arc-shaped structure.

[0011] Furthermore, the cross-section of the supporting beam has an H-shaped structure.

[0012] This invention ensures the strength of the support beam and reduces deformation by setting the cross-section of the support beam into an H-shaped structure.

[0013] Furthermore, both the upper and lower ends of the support beam are provided with connecting plates, and the connecting plates are provided with pin holes.

[0014] Furthermore, multiple constraint rollers are alternately arranged on both sides of the belt.

[0015] This invention, by alternately setting constraint rollers, enables the suspended part of the belt to vibrate slightly, which more accurately adapts to the dynamic motion characteristics of the belt, reduces additional resistance and wear, and improves long-term operational stability.

[0016] Secondly, this utility model provides a heavy-duty belt conveyor, including a support frame, a belt mounted on the support frame, a drive frame below the support frame, a drive roller, a tension roller, a first redirecting roller, and a second redirecting roller rotatably mounted on the drive frame, the first redirecting roller and the second redirecting roller being opposite each other on the drive frame, the drive roller and the tension roller being opposite each other on the drive frame, the belt extending downward from the support frame to the drive frame, the belt sequentially wrapping around the first redirecting roller, the tension roller, the drive roller, and the second redirecting roller, and the belt extending upward back to the support frame, and also including two anti-deviation devices for the aforementioned heavy-duty belt conveyor, the two anti-deviation devices being opposite each other on the drive frame, and constraint rollers alternately mounted on both sides of the belt's suspended portion, the constraint rollers being able to rotate under the drive of the belt.

[0017] Furthermore, the drive frame is provided with four lower mounting supports, which are rotatably connected to the corresponding connecting plates, and the bottom of the support frame is provided with four upper mounting supports, which are rotatably connected to the corresponding connecting plates.

[0018] This utility model uses a connecting plate to rotatably connect with the upper or lower mounting support, which reduces the requirements for the relative positional accuracy of the upper and lower mounting supports and the manufacturing accuracy of the constraint frame, and facilitates the appropriate adjustment of the position of the upper or lower mounting support during on-site installation.

[0019] As can be seen from the above technical solutions, this utility model has the following advantages: This invention provides an anti-deviation device for a heavy-duty belt conveyor, as well as the heavy-duty belt conveyor itself. By setting a constraint frame and multiple alternately arranged constraint rollers, the thickness direction of the suspended belt can be constrained, ensuring that the belt always moves within a relatively stable vertical plane. Furthermore, when the belt contacts the constraint rollers, it drives the contact roller to rotate, achieving energy transfer and reducing the belt's kinetic energy at its source. This significantly reduces belt vibration during startup and shutdown, preventing uneven contact between the belt and the drive roller, thus preventing belt deviation. The combination of a limit plate and a support seat facilitates the disassembly and assembly of the constraint rollers, improving maintenance convenience. The H-shaped cross-section of the support beam ensures its strength and reduces deformation. The alternating constraint rollers allow for slight vibration in the suspended belt section, more accurately adapting to the belt's dynamic motion characteristics, reducing additional resistance and wear, and improving long-term operational stability. The rotatable connection between the connecting plate and the upper or lower mounting support reduces the requirements for the relative positional accuracy of the upper and lower mounting supports and the manufacturing precision of the constraint frame, facilitating assembly. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the assembly structure of a heavy-duty belt with a specific embodiment of the present invention.

[0022] Figure 2 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0023] Figure 3 This is a schematic diagram of the assembly structure of the base plate, the limiting plate and the support base in a specific embodiment of this utility model.

[0024] Figure 4 This is a partial structural diagram of the second specific embodiment of the present utility model.

[0025] Figure 5 This is a schematic diagram of the assembly structure of the anti-deviation device of the heavy-duty belt conveyor, the upper mounting support, and the lower mounting support in the second specific embodiment of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the constraint roller.

[0027] In the diagram, 1. Upper mounting support; 2. Support beam; 3. Base plate; 4. Support seat; 5. Constraint roller; 6. Connecting plate; 601. Pin hole; 7. Belt; 9. Limiting plate; 10. Receiving groove; 11. Drive frame; 12. Tensioning roller; 13. Drive roller; 14. Secondary roller; 15. First secondary roller; 17. Support frame; 18. Support shaft; 19. Lower mounting support; 20. Constraint frame; 21. Bearing. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent. Specific Implementation Method 1 like Figure 1 and Figure 2As shown in the figure, this specific embodiment provides an anti-deviation device for a heavy-duty belt conveyor, including a constraint frame 20 and multiple constraint rollers 5. The upper and lower ends of the constraint frame 20 are respectively connected to the support frame 17 and the drive frame 11 of the heavy-duty belt conveyor. The constraint rollers 5 are rotatably mounted on the constraint frame 20 and can rotate under the action of the belt 7. Multiple constraint rollers 5 are arranged along the length direction of the constraint frame 20. The multiple constraint rollers 5 are respectively located on both sides of the suspended part of the belt 7. The axial direction of the constraint rollers 5 is consistent with the width direction of the belt 7.

[0030] This specific embodiment uses a constraint frame 20 and multiple alternately arranged constraint rollers 5 to constrain the thickness direction of the suspended belt 7, ensuring that the belt 7 always moves in a relatively stable vertical plane. After the belt 7 contacts the constraint rollers 5, it drives the contact roller to rotate, realizing energy transfer. This reduces the kinetic energy of the belt 7 at its source, greatly reduces the vibration amplitude of the belt 7 during start-up and stop, and greatly avoids uneven contact between the belt 7 and the drive roller 13, thereby greatly preventing the belt 7 from running off-track.

[0031] like Figures 1 to 3 As shown, in this specific embodiment, the constraint frame 20 includes two opposing support beams 2. Multiple base plates 3 are arranged along the length of each support beam 2. The base plates 3 on which the same constraint roller 5 is mounted are arranged opposite each other. A support seat 4 is provided on each base plate 3. In this specific embodiment, the support seat 4 has a rectangular ring structure. One end of the support seat 4 has an upward-facing receiving groove 10. The constraint roller 5 is rotatably equipped with a support shaft 18. Bearings 21 are provided at both ends inside the constraint roller 5. The support shaft 18 passes through two bearings, and both ends of the support shaft 18 extend out of the constraint roller 5 and are positioned within the corresponding receiving groove 10. A limit plate 9 is also detachably mounted at the end of the support seat 4 via bolts. The limit plate 9 spans the receiving groove 10. The lower side of the limiting plate 9 is close to the circumferential surface of the support shaft 18. With this arrangement, both ends of the constraint roller 5 can be simultaneously placed into the corresponding support seat 4 during installation, which facilitates the disassembly and assembly of the constraint roller 5 and improves maintenance convenience. To enhance the support stability of the support shaft 18, a limiting surface is provided on the outer circumferential surface of the support shaft 18. The limiting surface is a plane, which, compared to a circular arc surface, can increase the contact area with the groove wall of the receiving groove 10. The bottom of the receiving groove 10 and the surface opposite to the support shaft 18 are arc-shaped. Furthermore, to maintain the strength of the constraint frame 20, the cross-section of the support beam 2 is H-shaped. Connecting plates 6 are welded to both the upper and lower ends of the support beam 2. The connecting plates 6 are provided with pin holes 601 for installation and connection with the support frame 17 and frame of the heavy-duty belt conveyor 7.

[0032] Multiple constraint rollers 5 can be arranged in pairs on both sides of the suspended portion of the belt 7, such as... Figure 2 and Figure 5 As shown, in this specific embodiment, multiple constraint rollers 5 are alternately arranged on both sides of the belt 7. This alternating arrangement is equivalent to providing flexible segmented limiting for the belt 7, reserving a small buffer space for the local deformation of the belt 7. The staggered arrangement can cover both sides of the entire length of the suspended part of the belt 7, so that no risk of deviation on any side is overlooked, and there is no conflict between rigid limiting and the dynamic deformation of the belt 7. This allows the belt 7 to maintain a certain degree of movement flexibility under constraint, reduces the additional stress caused by forced limiting, more accurately adapts to the dynamic movement characteristics of the belt 7, reduces additional resistance and wear, and improves long-term operational stability. Specific Implementation Method Two like Figure 4 As shown in the figure, this specific embodiment provides a heavy-duty belt conveyor, including a support frame 17, on which a belt 7 is supported. Multiple idlers are arranged along the length of the support frame 17. A drive frame 11 is arranged below the support frame 17 and is mounted on the ground. A drive roller 13, a tension roller 12, a first idler roller 15, and a second idler roller 14 are rotatably mounted on the drive frame 11 via bearing seats. The first idler roller 15 and the second idler roller 14 are arranged opposite each other on the drive frame 11, as are the drive roller 13 and the tension roller 12. The first idler roller 15 is... The belt 7 is placed on the upper part of the tensioning roller 12, and the second redirecting roller 14 is placed on the upper part of the drive roller 13. The belt 7 extends downward from the support frame 17 to the drive frame 11. The belt 7 sequentially surrounds the first redirecting roller 15, the tensioning roller 12, the drive roller 13 and the second redirecting roller 14, and then extends upward back to the support frame 17. It also includes an anti-deviation device for the heavy-duty belt 7 conveyor of the first embodiment. The two anti-deviation devices of the heavy-duty belt 7 conveyor are arranged opposite to each other on the drive frame 11. The constraint rollers 5 are alternately arranged on both sides of the suspended part of the belt 7. The constraint rollers 5 can rotate under the drive of the belt 7.

[0034] like Figure 5 As shown, for ease of assembly, in this specific embodiment, four lower mounting supports 19 are welded onto the drive frame 11, and the lower mounting supports 19 are rotatably connected to the corresponding connecting plates 6. Four upper mounting supports 1 are welded onto the crossbeam at the bottom of the support frame 17, and the upper mounting supports 1 are rotatably connected to the corresponding connecting plates 6.

[0035] During installation, first, four lower mounting seats are spot-welded to the designated positions. Then, the constraint frame 20 is installed using pins or long bolts. Next, the upper mounting seat is rotatably connected to the corresponding connecting plate 6 using pins or long bolts. Then, the constraint frame 20 is rotated to the corresponding position so that the upper mounting seat can fit against the surface of the bottom crossbeam of the support frame 17. After fitting, welding is performed. After installing the constraint frame 20, the constraint rollers 5 are installed, so that multiple constraint rollers 5 are alternately distributed on both sides of the belt 7. Finally, the four upper mounting seats are fully welded. In this specific embodiment, three constraint rollers 5 are provided, and the distance between adjacent constraint rollers 5 is 1 meter. After installing one side, the other side is installed using the same steps.

[0036] As can be seen from the above specific embodiments, this utility model has the following beneficial effects: 1. By setting the constraint frame 20 and multiple alternately arranged constraint rollers 5, the thickness direction of the suspended belt 7 can be constrained, so that the belt 7 always moves in a relatively stable vertical plane. After the belt 7 contacts the constraint rollers 5, it drives the contact roller to rotate, realizing energy transfer. This reduces the kinetic energy of the belt 7 from the source, greatly reduces the vibration amplitude of the belt 7 during start-up and stop, greatly avoids uneven contact between the belt 7 and the drive roller 13, and thus greatly avoids belt 7 running off-track. 2. By setting the limit plate 9 and the support base 4 together, it is easy to disassemble and install the constraint roller 5, thus improving the convenience of maintenance; 3. By setting the cross-section of the support beam 2 into an H-shaped structure, the strength of the support beam 2 can be guaranteed and deformation can be reduced; 4. By alternately setting the constraint rollers 5, the suspended part of the belt 7 can be made to vibrate slightly, which can more accurately adapt to the dynamic motion characteristics of the belt 7, reduce additional resistance and wear, and improve long-term operating stability. 5. The connecting plate 6 is rotatably connected to the upper mounting support 1 or the lower mounting support 19, which can reduce the requirements for the relative positional accuracy of the upper and lower mounting supports 19 and the manufacturing accuracy requirements of the constraint frame 20, and facilitate assembly.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing belt misalignment in a heavy-duty belt conveyor, comprising a constraint frame (20), characterized in that, The upper and lower ends of the constraint frame (20) are respectively connected to the support frame (17) and the drive frame of the heavy belt conveyor. A constraint roller (5) is rotatably arranged on the constraint frame (20). Multiple constraint rollers (5) are arranged along the length direction of the constraint frame (20). The multiple constraint rollers (5) are located on both sides of the suspended part of the belt. The axial direction of the constraint roller (5) is consistent with the width direction of the belt.

2. The anti-deviation device for a heavy-duty belt conveyor as described in claim 1, characterized in that, The constraint frame (20) includes two support beams (2) arranged opposite to each other. Multiple base plates (3) are arranged on the support beams (2) along their length direction. The base plates (3) on which the same constraint roller (5) is mounted are arranged opposite to each other. A support seat (4) is arranged on the base plate (3). One end of the support seat (4) is provided with an upward-facing receiving groove (10). The constraint roller (5) is rotatably provided with a support shaft (18). Both ends of the support shaft (18) are arranged in the receiving groove (10). A limit plate (9) is also detachably provided at the end of the support seat (4). The limit plate (9) spans the receiving groove (10). The lower side of the limit plate (9) is close to the constraint roller (5).

3. The anti-deviation device for a heavy-duty belt conveyor as described in claim 2, characterized in that, The bottom of the receiving groove (10) and the surface opposite to the support shaft (18) are arc-shaped.

4. The anti-deviation device for a heavy-duty belt conveyor as described in claim 3, characterized in that, The cross-section of the supporting beam (2) is H-shaped.

5. The anti-deviation device for a heavy-duty belt conveyor as described in claim 4, characterized in that, The upper and lower ends of the support beam (2) are provided with connecting plates (6), and the connecting plates (6) are provided with pin holes (601).

6. The anti-deviation device for a heavy-duty belt conveyor as described in claim 5, characterized in that, Multiple constraint rollers (5) are alternately arranged on both sides of the belt.

7. A heavy-duty belt conveyor, comprising a support frame (17), on which a belt (7) is disposed, and a drive frame (11) is disposed below the support frame (17). A drive roller (13), a tension roller (12), a first redirecting roller (15), and a second redirecting roller (14) are rotatably disposed on the drive frame (11). The first redirecting roller (15) and the second redirecting roller (14) are disposed opposite to each other on the drive frame (11), and the drive roller (13) and the tension roller (12) are disposed opposite to each other on the drive frame (11). The belt (7) flows from the support frame (17)... The belt (7) extends downward to the drive frame (11), and the belt (7) sequentially surrounds the first redirecting roller (15), the tensioning roller (12), the drive roller (13), and the second redirecting roller (14). The belt (7) extends upward back to the support frame (17). It also includes two anti-deviation devices for the heavy-duty belt conveyor as described in claim 6. The two anti-deviation devices for the heavy-duty belt conveyor are arranged opposite to each other on the drive frame (11). The constraint rollers (5) are alternately arranged on both sides of the suspended part of the belt (7). The constraint rollers (5) can rotate under the drive of the belt (7).

8. The heavy-duty belt conveyor as described in claim 7, characterized in that, The drive frame (11) is provided with four lower mounting supports (19), which are rotatably connected to the corresponding connecting plates (6). The support frame (17) is provided with four upper mounting supports (1) at the bottom, which are rotatably connected to the corresponding connecting plates (6).

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