A support device for a conveyor and a conveyor

By using articulated and adjustable tensioning structures to connect truss segments on long-distance conveyors, the problem of internal stress caused by foundation deformation in the truss is solved, thereby improving the stability and safety of the truss and enabling automatic adjustment and intelligent control.

CN224428887UActive Publication Date: 2026-06-30HUADIAN HEAVY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUADIAN HEAVY IND CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The truss of long-distance conveyors generates internal stress due to its inability to adapt to foundation deformation, leading to truss deformation or breakage.

Method used

The truss segments are connected by a hinged structure and an adjustable tension structure. The relative position of the truss segments can be adjusted by adjusting the tension structure, releasing internal stress and adapting to uneven settlement of the foundation.

Benefits of technology

It effectively avoids disorderly deformation or fracture of trusses, improves structural stability and safety, realizes automatic adjustment and intelligent control, and reduces the need for manual intervention.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224428887U_ABST
    Figure CN224428887U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of conveying equipment technology, and discloses a support device for a conveyor and a conveyor. The support device includes: multiple support trusses, each support truss comprising multiple truss segments. Two truss segments connected end-to-end are designated as a first truss segment and a second truss segment. The upper part of the tail end of the first truss segment and the upper part of the head end of the second truss segment are connected by a hinge structure. The lower part of the tail end of the first truss segment and the lower part of the head end of the second truss segment are connected by an adjustable tensioning structure. The tensioning structure is used to adjust the relative positional relationship between the first and second truss segments. When uneven settlement occurs in the foundation, adjusting the tensioning structure adjusts the relative positional relationship of the two truss segments connected end-to-end, thereby releasing the internal stress of the support truss, ensuring the structural stability and relative positional relationship of the support truss, and preventing disordered deformation or breakage of the support truss.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, specifically to a support device for a conveyor and a conveyor. Background Technology

[0002] Long-distance conveyors are a type of continuous conveying equipment widely used in industries such as mining, ports, power, and metallurgy. They are mainly used for long-distance, high-volume transport of bulk materials, such as coal, ore, and sand.

[0003] Long-distance conveyors often cross areas such as soft soil layers or mining subsidence areas. Due to the low density of the soil, the foundation will settle. Since the foundation and truss are usually rigidly connected, the truss cannot adapt to the deformation of the foundation and will generate internal stress, which will lead to deformation or even breakage of the truss. Utility Model Content

[0004] In view of this, the present invention provides a support device for a conveyor and a conveyor to solve the problem that the truss of a long-distance conveyor cannot adapt to the deformation of the foundation, resulting in internal stress that causes the truss to deform or even break.

[0005] In a first aspect, this utility model provides a support device for a conveyor, comprising: multiple support trusses connected end-to-end along the conveying direction, each support truss comprising multiple truss segments connected end-to-end along the conveying direction, the two truss segments connected end-to-end being a first truss segment and a second truss segment, the upper part of the tail end of the first truss segment and the upper part of the head end of the second truss segment being connected by a hinge structure, the lower part of the tail end of the first truss segment and the lower part of the head end of the second truss segment being connected by an adjustable tensioning structure, the tensioning structure being used to adjust the relative positional relationship between the first truss segment and the second truss segment.

[0006] Beneficial effects: The two truss segments connected end to end are linked by a hinged structure and a tensioning structure, which allows for a certain degree of adjustment in angle and sag between the truss segments. When uneven settlement occurs in the foundation, the columns also deform irregularly. By adjusting the tensioning structure, the relative position of the two truss segments connected end to end can be adjusted, thereby releasing the deformation internal stress of the supporting truss, ensuring the structural stability and relative position of the supporting truss, and preventing disordered deformation or breakage of the supporting truss. This effectively solves the problem that the truss of long-distance conveyors cannot adapt to the deformation of the foundation, resulting in internal stress that causes truss deformation or even breakage.

[0007] In one optional embodiment, the tensioning structure includes a tie rod and a first locking nut. The lower part of the tail end of the first truss segment is provided with a first through hole for the first end of the tie rod to pass through. The first end of the tie rod passes through the first through hole and is threadedly connected to the first locking nut. The relative positional relationship between the first truss segment and the second truss segment can be adjusted by rotating the tie rod or the first locking nut.

[0008] Beneficial effects: The relative position of the two truss segments connected end to end is adjusted by tie rods and the first locking nut. The structure is simple, easy to install, flexible to adjust, convenient to maintain, and low in cost.

[0009] In one alternative embodiment, the tensioning structure further includes a first hinge member, which is rotatably disposed at the lower part of the tail end of the first truss segment. The first hinge member is provided with a first through hole for the tie rod to pass through, and the first end of the tie rod passes through the first through hole and the first through hole to connect with the first locking nut.

[0010] Beneficial effects: The first hinge allows the first end of the tie rod to have a certain degree of freedom of spatial rotation, which can adapt to nonlinear displacement, tilting and torsion caused by foundation settlement, and avoid stress concentration and structural fatigue failure caused by rigid connection between truss segments.

[0011] In one optional embodiment, the tensioning structure further includes a first pressure sensor, a controller, and an alarm component. The first pressure sensor is sleeved on the pull rod and located between the first hinge and the first locking nut. The controller is communicatively connected to the first pressure sensor and the alarm component, and is used to control whether the alarm component alarms based on the pressure detected by the first pressure sensor.

[0012] Beneficial effects: The first pressure sensor detects the preload of the tensioning structure in real time. When the change in the preload of the first locking nut detected by the first pressure sensor exceeds the preset threshold, the controller controls the alarm component to issue an alarm signal, reminding the maintenance personnel that uneven settlement has occurred in the truss segment. At the same time, the maintenance personnel can readjust the profile of the support truss by adjusting the tensioning structure to meet the cross-sectional requirements of the conveyor.

[0013] In one optional embodiment, the tensioning structure further includes a second locking nut. The lower part of the first end of the second truss segment is provided with a second through hole for the second end of the tie rod to pass through. The second end of the tie rod passes through the second through hole and is threadedly connected to the second locking nut. The relative positional relationship between the first truss segment and the second truss segment can be adjusted by rotating the tie rod or the second locking nut.

[0014] Beneficial effects: Nuts are provided at both ends of the tie rod, making both ends of the tie rod adjustable, which makes on-site operation more flexible. The adjustment end can be flexibly selected according to the settlement direction, making it easier to achieve precise angle and sag adjustment, ensuring the suspension shape of each span of the support truss, improving the structural stability and safety of the support truss, effectively absorbing the additional bending moment and shear force caused by settlement, and avoiding weld cracking, truss twisting or even breakage caused by rigid connection.

[0015] In one alternative embodiment, the tensioning structure further includes a second hinge member, which is rotatably disposed at the lower part of the first end of the second truss segment. The second hinge member is provided with a second through hole for the tie rod to pass through, and the second end of the tie rod passes through the second through hole and the second through hole to connect with the second locking nut.

[0016] Beneficial effects: The second hinge allows the second end of the tie rod to also have a certain degree of spatial rotational freedom, which can adapt to nonlinear displacement, tilting and torsion caused by foundation settlement, and avoid stress concentration and structural fatigue failure caused by rigid connection between truss segments.

[0017] In one alternative embodiment, the tensioning structure further includes a second pressure sensor, which is sleeved on the pull rod and located between the second hinge and the second locking nut.

[0018] Beneficial effects: The second pressure sensor monitors the preload of the tensioning structure in real time. When the change in preload of the second locking nut detected by the second pressure sensor exceeds a preset threshold, the controller activates the alarm component to issue an alarm signal, alerting maintenance personnel that uneven settlement has occurred in this truss segment. Simultaneously, maintenance personnel can adjust the tensioning structure to readjust the profile of the supporting truss to meet the conveyor's cross-sectional requirements. Furthermore, by installing a first pressure sensor and a second pressure sensor at both ends of the tie rod, the balance of forces at both ends can be compared. Significant deviations indicate asymmetrical settlement or loose connections, improving data accuracy and reliability.

[0019] In one alternative embodiment, a first locking nut is fixed to a first truss segment, a second locking nut is fixed to a second truss segment, and the tensioning structure further includes a driving member connected to a tie rod, which drives the tie rod to rotate.

[0020] Beneficial effects: When uneven settlement occurs in the foundation, the drive mechanism rotates the tie rods, thereby adjusting the relative positions of the truss segments. This achieves structural deformation compensation and stress release, enabling automatic adjustment, improving the level of intelligence, eliminating the need for manual adjustment, and saving manpower. The drive mechanism can be a motor, offering high adjustment precision and fast response speed, shortening adjustment time and saving time. Of course, a drive mechanism can also be omitted, requiring manual adjustment of the tie rods.

[0021] In one optional embodiment, the support device further includes multiple columns arranged sequentially along the conveying direction. Any two adjacent columns along the conveying direction support the first and last ends of a support truss, and the two support trusses connected end to end are hinged to the corresponding columns.

[0022] Beneficial effects: The two adjacent support trusses are hinged at their ends to the columns, allowing for a certain angle change between the adjacent support trusses; when a column at a certain point sinks due to foundation settlement, the support trusses can compensate by rotating the hinge point, avoiding stress concentration, weld cracking or truss breakage caused by rigid connection between support trusses.

[0023] Secondly, this utility model also provides a conveyor, including the aforementioned support device. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a perspective view of a conveyor according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 The front view of one support truss and two columns of the conveyor shown;

[0027] Figure 3 for Figure 2 A three-dimensional view of a supporting truss and two columns is shown.

[0028] Figure 4 for Figure 3 A magnified view of part A in the diagram;

[0029] Figure 5 for Figure 3 A magnified view of part B in the diagram;

[0030] Figure 6 for Figure 4 A perspective view of a supporting truss and two columns from another viewpoint;

[0031] Figure 7 for Figure 6 A magnified view of part C in the diagram.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Support truss; 101. Truss segment; 1011. First through hole; 1012. Second through hole;

[0034] 2. Hinged structure;

[0035] 3. Tensioning structure; 301. Pull rod; 302. First locking nut; 303. First hinge; 304. First pressure sensor; 305. Second locking nut; 306. Second hinge; 307. Second pressure sensor;

[0036] 4. Columns;

[0037] 5. Conveyor body; 501. Frame; 502. Idler roller. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] The following is combined with Figures 1 to 7 The following describes embodiments of the present invention.

[0040] According to an embodiment of this utility model, a support device for a conveyor is provided, comprising: multiple support trusses 1, which are connected end-to-end along the conveying direction. Each support truss 1 includes multiple truss segments 101 connected end-to-end along the conveying direction. Two truss segments 101 connected end-to-end are respectively a first truss segment and a second truss segment. The upper part of the tail end of the first truss segment and the upper part of the head end of the second truss segment are connected by a hinge structure 2. The lower part of the tail end of the first truss segment and the lower part of the head end of the second truss segment are connected by an adjustable tensioning structure 3. The tensioning structure 3 is used to adjust the relative positional relationship between the first truss segment and the second truss segment. It should be noted that the support trusses 1 are mounted on a foundation via columns 4.

[0041] The support device of the conveyor in this embodiment connects two truss segments 101 at their ends via a hinge structure 2 and a tensioning structure 3, allowing for a certain degree of angle and sag adjustment between the truss segments 101. When uneven settlement occurs in the foundation, the column 4 also undergoes irregular deformation. By adjusting the tensioning structure 3, the relative positional relationship of the two truss segments 101 at their ends can be adjusted, thereby releasing the deformation internal stress of the support truss 1, ensuring the structural stability and relative positional relationship of the support truss 1, and preventing disordered deformation or breakage of the support truss 1. This effectively solves the problem that the truss of long-distance conveyors cannot adapt to the deformation of the foundation, resulting in internal stress that causes truss deformation or even breakage.

[0042] Furthermore, the hinge structure 2 is specifically a hinge shaft, and the first and second truss segments are provided with hinge holes that mate with the hinge shaft. Through the adjustable tensioning structure 3 working in conjunction with the hinge shaft, it meets the cross-sectional requirements of the conveyor, enabling timely alarm and rapid adjustment of the truss after uneven settlement occurs.

[0043] In one embodiment, such as Figure 5 As shown, the tensioning structure 3 includes a tie rod 301 and a first locking nut 302. A first through hole 1011 is provided on the lower part of the tail end of the first truss segment for the first end of the tie rod 301 to pass through. The first end of the tie rod 301 passes through the first through hole 1011 and is threadedly connected to the first locking nut 302. The relative positional relationship between the first and second truss segments can be adjusted by rotating the tie rod 301 or the first locking nut 302. The relative positional relationship of the two truss segments 101 connected end-to-end is adjusted by the tie rod 301 and the first locking nut 302. This method is simple in structure, easy to install, flexible in adjustment, convenient in maintenance, and low in cost.

[0044] In one embodiment, such as Figure 5 As shown, the tensioning structure 3 also includes a first hinge member 303, which is rotatably disposed at the lower part of the tail end of the first truss segment. The first hinge member 303 has a first through hole for the tie rod 301 to pass through. The first end of the tie rod 301 passes through the first through hole 1011 and the first through hole and is connected to the first locking nut 302. The first hinge member 303 provides the first end of the tie rod 301 with a certain degree of spatial rotational freedom, which can adapt to nonlinear displacement, tilting and torsion caused by foundation settlement, and avoid stress concentration and structural fatigue failure caused by rigid connection between truss segments 101.

[0045] In one embodiment, such as Figure 5As shown, the tensioning structure 3 also includes a first pressure sensor 304, which is sleeved on the tie rod 301 and located between the first hinge 303 and the first locking nut 302. The controller is communicatively connected to the first pressure sensor 304 and the alarm component. The controller controls whether the alarm component alarms based on the pressure detected by the first pressure sensor 304. The first pressure sensor 304 detects the preload of the tensioning structure 3 in real time. When the change in the preload of the first locking nut 302 detected by the first pressure sensor 304 exceeds a preset threshold, the controller controls the alarm component to issue an alarm signal, reminding maintenance personnel that uneven settlement has occurred in the truss segment 101 at this location. At the same time, maintenance personnel can readjust the profile of the supporting truss 1 by adjusting the tensioning structure 3 to meet the cross-sectional requirements of the conveyor.

[0046] In one embodiment, such as Figure 5 and Figure 7 As shown, the tensioning structure 3 also includes a second locking nut 305. The lower part of the first end of the second truss segment has a second through hole 1012 for the second end of the tie rod 301 to pass through. The second end of the tie rod 301 passes through the second through hole 1012 and is threadedly connected to the second locking nut 305. The relative positional relationship between the first and second truss segments can be adjusted by rotating the tie rod 301 or the second locking nut 305. Nuts are provided at both ends of the tie rod 301, making both ends adjustable. This allows for more flexible on-site operation, enabling the selection of the adjustment end based on the settlement direction. It also facilitates precise angle and sag adjustments, ensuring the suspension shape of each span of the support truss, improving the structural stability and safety of the support truss 1, effectively absorbing additional bending moments and shear forces caused by settlement, and preventing weld cracking, truss twisting, or even breakage caused by rigid connections.

[0047] It is understood that in another embodiment, the second locking nut 305 may not be provided, and the second end of the tie rod 301 is hinged to the second truss segment. Specifically, the second end of the tie rod 301 and the second truss segment are both provided with pin holes, and the pin shaft is set in the pin hole.

[0048] In one embodiment, the tensioning structure 3 further includes a second hinge member 306, which is rotatably disposed at the lower part of the first end of the second truss segment. The second hinge member 306 has a second through hole for the tie rod 301 to pass through. The second end of the tie rod 301 passes through the second through hole 1012 and the second through hole and is connected to the second locking nut 305. The second hinge member 306 provides the second end of the tie rod 301 with a certain degree of spatial rotational freedom, which can adapt to nonlinear displacement, tilting and torsion caused by foundation settlement, and avoid stress concentration and structural fatigue failure caused by rigid connection between truss segments 101.

[0049] Furthermore, both the first hinge member 303 and the second hinge member 306 include a hinge block and a rotating shaft. The hinge block has rotating shafts at both ends, and the first truss segment and the second truss segment have mounting holes that mate with the rotating shafts. The hinge block has a rectangular cross-section.

[0050] In one embodiment, the tensioning structure 3 further includes a second pressure sensor 307, which is sleeved on the tie rod 301 and located between the second hinge 306 and the second locking nut 305. The second pressure sensor 307 detects the preload of the tensioning structure 3 in real time. When the change in the preload of the second locking nut 305 detected by the second pressure sensor 307 exceeds a preset threshold, the controller controls the alarm component to issue an alarm signal, reminding maintenance personnel that uneven settlement has occurred in the truss segment 101. At the same time, maintenance personnel can readjust the profile of the supporting truss 1 by adjusting the tensioning structure 3 to meet the cross-sectional requirements of the conveyor. Furthermore, by setting a first pressure sensor 304 and a second pressure sensor 307 at both ends of the tie rod 301, the forces at both ends of the tie rod 301 can be compared to see if they are balanced. If a significant deviation occurs, it indicates that there is asymmetrical settlement or loose connection in the structure, improving the accuracy and reliability of the data.

[0051] In one embodiment, the relative positional relationship of the truss segment 101 is adjusted by manually rotating the first locking nut 302 or the second locking nut 305 to achieve structural deformation compensation. The adjustment function can be achieved by simply rotating the first locking nut 302 or the second locking nut 305, without the need for complex machinery or control systems. The operation is simple and the cost is low.

[0052] Understandably, in another embodiment, the first locking nut 302 is fixed to the first truss segment, and the second locking nut 305 is fixed to the second truss segment. The tensioning structure 3 also includes a driving component connected to the tie rod 301, which drives the tie rod 301 to rotate. When uneven settlement occurs in the foundation, the drive component drives the tie rod 301 to rotate, thereby adjusting the relative position of the truss segments 101, thus achieving structural deformation compensation and stress release, realizing automatic adjustment, improving the level of intelligence, eliminating the need for manual adjustment, and saving manpower. The driving component can be a motor, which has high adjustment accuracy and fast response speed, shortening the adjustment time and saving time. Of course, the driving component can also be omitted, requiring manual adjustment of the tie rod 301.

[0053] In one embodiment, the support device further includes multiple columns 4 arranged sequentially along the conveying direction. Any two adjacent columns 4 along the conveying direction support the first and last ends of a support truss 1, and the two support trusses 1 connected end-to-end are hinged to the corresponding columns 4. The hinged connection of two adjacent support trusses 1 to the columns 4 allows for a certain angle change between adjacent support trusses 1. When a column 4 at a certain point sinks due to foundation settlement, the support truss 1 can compensate by rotating at the hinge point, avoiding stress concentration, weld cracking, or truss breakage caused by rigid connection between support trusses 1.

[0054] Furthermore, the two supporting trusses 1 connected end to end are also connected by a hinged structure 2 and a tensioning structure 3. When uneven settlement occurs in the foundation, the relative position of the two supporting trusses 1 connected end to end can be adjusted by adjusting the tensioning structure 3, thereby releasing the internal stress of the supporting trusses 1, ensuring the structural stability of the supporting trusses 1, and preventing the supporting trusses 1 from deforming or breaking.

[0055] According to an embodiment of the present invention, another aspect provides a conveyor, including the aforementioned support device.

[0056] Furthermore, multiple support trusses 1 of the support device are sequentially hinged end to end, and several truss segments 101 in the support trusses 1 are sequentially hinged end to end. The upper parts of two truss segments 101 connected end to end are connected by a hinge shaft, and the lower parts are connected by a tensioning structure 3. Multiple truss segments 101 are connected by the tensioning structure 3 and the hinge shaft to simulate the truss shape required by the conveyor. The tensioning structure 3 includes a tie rod 301, a first locking nut 302, a second locking nut 305, a first pressure sensor 304, a second pressure sensor 307, a first hinge 303, and a second hinge 306. The first pressure sensor 304 and the second pressure sensor 307 monitor the preload of the tensioning structure 3 in real time.

[0057] When uneven settlement occurs in the foundation, the preload of the tensioning structure 3 will decrease accordingly. When the change in the preload of the tensioning structure 3 is less than the set threshold, an alarm signal can be issued to remind the maintenance personnel that uneven settlement has occurred. At the same time, the maintenance personnel can adjust the tensioning structure 3 according to the actual uneven settlement, and then readjust the contour of the supporting truss 1 to refit the foundation position after settlement, so as to meet the cross-sectional requirements of the conveyor. This realizes timely alarm and rapid adjustment of the truss after uneven settlement. Furthermore, by adjusting the relative position of the two truss segments 101 connected end to end, the uneven settlement between the two columns 4 is balanced, releasing the internal stress of the truss caused by the uneven settlement of the conveyor foundation, and preventing damage to the truss.

[0058] In one embodiment, the conveyor further includes a conveyor body 5, which is mounted on a support device. The conveyor body 5 includes a frame 501, a conveyor belt, idlers 502, and a drive device. The frame 501 is mounted on the support device, the idlers 502 and the drive device are mounted on the frame 501, the conveyor belt is supported on the idlers 502, and the drive device drives the conveyor belt to run, thereby conveying the material on the conveyor belt.

[0059] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A support device for a conveyor, characterized in that include: Multiple support trusses (1) are connected end to end along the conveying direction. Each support truss (1) includes multiple truss segments (101) connected end to end along the conveying direction. The two truss segments (101) connected end to end are the first truss segment and the second truss segment, respectively. The upper part of the tail end of the first truss segment and the upper part of the head end of the second truss segment are connected by a hinge structure (2). The lower part of the tail end of the first truss segment and the lower part of the head end of the second truss segment are connected by an adjustable tensioning structure (3). The tensioning structure (3) is used to adjust the relative positional relationship between the first truss segment and the second truss segment.

2. The support device according to claim 1, characterized in that, The tensioning structure (3) includes a tie rod (301) and a first locking nut (302). The lower part of the tail end of the first truss segment is provided with a first through hole (1011) through which the first end of the tie rod (301) passes. The first end of the tie rod (301) passes through the first through hole (1011) and is threadedly connected to the first locking nut (302). The relative positional relationship between the first truss segment and the second truss segment can be adjusted by rotating the tie rod (301) or the first locking nut (302).

3. The support device according to claim 2, characterized in that, The tensioning structure (3) further includes a first hinge (303), which is rotatably disposed at the lower part of the tail end of the first truss segment. The first hinge (303) is provided with a first through hole for the pull rod (301) to pass through. The first end of the pull rod (301) passes through the first through hole (1011) and the first through hole is connected to the first locking nut (302).

4. The support device according to claim 3, characterized in that, The tensioning structure (3) further includes a first pressure sensor (304), a controller, and an alarm component. The first pressure sensor (304) is sleeved on the pull rod (301) and located between the first hinge (303) and the first locking nut (302). The controller is communicatively connected to the first pressure sensor (304) and the alarm component. The controller is used to control whether the alarm component alarms based on the pressure detected by the first pressure sensor (304).

5. The support device according to claim 2, characterized in that, The tensioning structure (3) also includes a second locking nut (305). The lower part of the first end of the second truss segment is provided with a second through hole (1012) for the second end of the tie rod (301) to pass through. The second end of the tie rod (301) passes through the second through hole (1012) and is threadedly connected to the second locking nut (305). The relative positional relationship between the first truss segment and the second truss segment can be adjusted by rotating the tie rod (301) or the second locking nut (305).

6. The support device according to claim 5, characterized in that, The tensioning structure (3) further includes a second hinge (306), which is rotatably disposed at the lower part of the first end of the second truss segment. The second hinge (306) is provided with a second through hole for the tie rod (301) to pass through. The second end of the tie rod (301) passes through the second through hole (1012) and the second through hole and is connected to the second locking nut (305).

7. The support device according to claim 6, characterized in that, The tensioning structure (3) further includes a second pressure sensor (307), which is sleeved on the pull rod (301) and located between the second hinge (306) and the second locking nut (305).

8. The support device according to claim 5, characterized in that, The first locking nut (302) is fixed on the first truss segment, and the second locking nut (305) is fixed on the second truss segment. The tensioning structure (3) also includes a driving member, which is connected to the tie rod (301) and drives the tie rod (301) to rotate.

9. The support device according to any one of claims 1 to 8, characterized in that, The support device also includes multiple columns (4), which are arranged sequentially along the conveying direction. Any two adjacent columns (4) along the conveying direction support the first and last ends of a support truss (1), and the two support trusses (1) connected end to end are hinged on the corresponding columns (4).

10. A conveyor, characterized in that, include: The support device according to any one of claims 1 to 9.