A segment unloading device

By using a connecting frame and adjusting components in the segment unloading device to adjust the position of the unloading component so that it is parallel to the segments on the trailer, the problem of unloading failure caused by trailer position deviation is solved, and the unloading efficiency is improved.

CN224315009UActive Publication Date: 2026-06-02CHINA RAILWAY CONSTR HEAVY IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY CONSTR HEAVY IND
Filing Date
2025-07-15
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the existing technology, when the trailer travels to the segment unloading device, it is easy to cause positional deviation, resulting in unloading failure. This requires repeated adjustment of the trailer position, which reduces the unloading efficiency.

Method used

The frame is connected via a connecting bracket. The unloading and adjustment components are installed and adjusted to make the unloading component parallel to the segments on the trailer. The segments are then unloaded using the unloading component to avoid positional deviation.

Benefits of technology

This reduces the difficulty of trailer operation, improves the efficiency of segment unloading, and avoids the need for repeated position adjustments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224315009U_ABST
    Figure CN224315009U_ABST
Patent Text Reader

Abstract

The embodiment of the application provides a pipe piece unloading device, and relates to the technical field of tunnel pipe piece unloading. A connecting frame is used for being connected with a frame; an unloading assembly is connected with the connecting frame, and the unloading assembly is used for unloading a pipe piece; an adjusting assembly is arranged on the connecting frame and connected with the unloading assembly, and the adjusting assembly is used for adjusting the position of the unloading assembly, so that the unloading assembly is parallel to the pipe piece. The pipe piece unloading device of the application reduces the influence of the trailer parking position on unloading, and improves the unloading efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of tunnel segment unloading technology, and in particular to a segment unloading device. Background Technology

[0002] With the continuous development and construction of urban subways, intercity railways, and mountain water diversion tunnels, full-face tunnel boring machines with a diameter of 8 meters or more have been widely used. Due to the narrow space in tunnels, trackless rubber-wheeled vehicles were initially used to transport tunnel segments, and later trailers were added to travel directly on the inner wall of the tunnel.

[0003] In the existing technology, the segment unloading device is suspended on both sides of the rear-mounted trailer frame. The segment unloading device unloads and stores the segments on the trackless rubber-tired vehicle, and then the segment crane lifts the segments from the segment unloading device to the segment feeder or segment assembly area, and finally the assembly machine completes the assembly of the segments.

[0004] However, when the trailer travels to the segment unloading device, there is a certain positional deviation between it and the device, making it impossible for the device to unload the segments, which requires repeated adjustments to the trailer's position. Utility Model Content

[0005] This application provides a segment unloading device to solve the problem that when a trailer travels to the segment unloading device, the trailer's position deviation is not conducive to unloading the segments.

[0006] This application provides a segment unloading device, including:

[0007] A connecting frame for connecting to a frame;

[0008] An unloading component is connected to the connecting frame and is used to unload the tube segment.

[0009] An adjustment component is disposed on the connecting frame and connected to the unloading component. The adjustment component is used to adjust the position of the unloading component so that the unloading component is parallel to the segments on the trailer.

[0010] In one possible implementation, the adjustment assembly includes a transverse frame and two sets of adjustment members. The transverse frame is slidably disposed on the connecting frame, and the adjustment members are disposed on the transverse frame. The two sets of adjustment members are respectively connected to both sides of the transverse frame, and the adjustment members respectively drive both sides of the transverse frame to move so that the transverse frame is offset to be parallel to the tube segment.

[0011] In one possible implementation, the transverse frame includes a movable frame and an offset frame, the movable frame being slidably disposed on the connecting frame, the offset frame being hinged to the movable frame, and the adjusting member including an adjusting cylinder hinged to the connecting frame, the piston rod of the adjusting cylinder being hinged to the offset frame to drive the end of the offset frame to move.

[0012] In one possible implementation, the adjustment assembly further includes guides rotatably mounted on the connecting frame, the guides guiding both sides of the transverse frame to move the transverse frame out of the connecting frame.

[0013] In one possible implementation, the transverse frame is provided with wheels that contact the connecting frame to assist in the movement of the transverse frame.

[0014] In one possible implementation, there is a gap between both sides of the transverse frame and the connecting frame, allowing the transverse frame to deflect.

[0015] In one possible implementation, a longitudinal translation component is further included, which includes a longitudinal translation frame and a drive unit. The longitudinal translation frame is longitudinally slidably disposed on the offset frame, and the drive unit is disposed on the offset frame and connected to the longitudinal translation frame. The unloading component is disposed on the longitudinal translation frame, and the drive unit drives the longitudinal translation frame to slide on the offset frame.

[0016] In one possible implementation, the bottom of the offset frame is provided with a traveling member for placement on the tunnel to support the offset frame.

[0017] In one possible implementation, the unloading assembly includes an external frame and a lifting member, the external frame being connected to the longitudinal translation frame, and the lifting member being disposed on the external frame for lifting the segment.

[0018] In one possible implementation, the lifting component includes an inner frame, a pawl, and a lifting cylinder. The pawl is rotatably mounted on the inner frame, the inner frame is slidably mounted on the outer frame, and the lifting cylinder is mounted on the outer frame and connected to the inner frame. The lifting cylinder drives the inner frame to move up and down.

[0019] The segment unloading device provided in this application embodiment is connected to a frame via a connecting bracket. The unloading component is installed on the connecting bracket for unloading segments from the trailer. An adjustment component is installed on the connecting bracket to adjust the position of the unloading component, deflecting it to be parallel to the segments on the trailer. The segments are then unloaded via the unloading component. This avoids the need to repeatedly move the trailer to adjust its position after the trailer deviates from the unloading device during travel, reducing the difficulty of trailer operation and improving the efficiency of segment unloading. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] Figure 1 A schematic diagram of the segment unloading device provided in this application;

[0022] Figure 2 for Figure 1 A schematic diagram of the unloading device for the middle section of the tube from another angle;

[0023] Figure 3 for Figure 1 Schematic diagram of the connection structure of the medium-speed mobile frame;

[0024] Figure 4 for Figure 1 Schematic diagram of the connection structure of the offset frame;

[0025] Figure 5 for Figure 1 Schematic diagram of the standby state of the segment unloading device;

[0026] Figure 6 for Figure 1 Schematic diagram of the unloading status of the segment unloading device;

[0027] Figure 7 for Figure 6 Top view of the unloading status of the segment unloading device.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Frame; 2. Segment; 3. Trailer; 4. Walking platform; 5. Tunnel;

[0030] 100. Connecting frame; 200. Unloading assembly; 210. External frame; 220. Lifting component; 221. Internal frame; 222. Pawl; 223. Lifting cylinder; 300. Adjusting assembly; 310. Lateral movement frame; 311. Offset frame; 312. Moving frame; 313. Traveling wheel; 320. Adjusting component; 330. Guide component; 331. Adjusting bolt; 400. Longitudinal translation component; 410. Longitudinal translation frame; 421. Traveling component; 420. Drive unit.

[0031] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] With the continuous development and construction of urban subways, intercity railways, and mountain water diversion tunnels, full-face tunnel boring machines with a diameter of 8 meters or more have been widely used. Due to the narrow space in tunnels, trackless rubber-wheeled vehicles were initially used to transport tunnel segments, and later trailers were added to travel directly on the inner wall of the tunnel.

[0034] In the existing technology, the segment unloading device is suspended on both sides of the rear-mounted trailer frame. The segment unloading device unloads and stores the segments on the trackless rubber-tired vehicle, and then the segment crane lifts the segments from the segment unloading device to the segment feeder or segment assembly area, and finally the assembly machine completes the assembly of the segments.

[0035] However, when the trailer travels to the segment unloading device, there is a certain positional deviation between it and the device, making it impossible for the device to unload the segments, which requires repeated adjustments to the trailer's position.

[0036] This application provides a segment unloading device that is connected to a frame via a connecting bracket. An unloading component is installed on the connecting bracket for unloading segments from a trailer. An adjustment component is installed on the connecting bracket to adjust the position of the unloading component, deflecting it to be parallel to the segments on the trailer. The segments are then unloaded via the unloading component. This avoids the need to repeatedly move the trailer to adjust its position after the trailer deviates from the unloading device during travel, reducing the difficulty of trailer operation and improving the efficiency of segment unloading.

[0037] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0038] This application provides a segment unloading device, referring to... Figure 1 and Figure 2 The segment unloading device includes:

[0039] Connecting bracket 100, the connecting bracket 100 is used to connect with frame 1;

[0040] Unloading component 200 is connected to connecting bracket 100 and is used to unload segment 2;

[0041] Adjustment component 300 is mounted on connecting frame 100 and connected to unloading component 200. Adjustment component 300 is used to adjust the position of unloading component 200 so that unloading component 200 is parallel to segment 2 on trailer.

[0042] The system includes two segment unloading devices, symmetrically positioned on both sides of the frame 1. These devices work together to lift the bottom ends of the segment 2, thus unloading the segment 2. In other embodiments, a segment unloading device may be installed on only one side of the frame 1, with a single device lifting the segment 2. This will not be elaborated upon further here.

[0043] The frame 1 is a trailer frame, which is installed inside the tunnel 5. A segment installation device is mounted on the trailer frame to install the segments 2 inside the tunnel 5, thus providing support for the tunnel 5. The tunnel 5 has a traveling platform 4, on which the trailer 3 travels. The trailer frame is installed on both sides of the traveling platform 4. This is existing technology and will not be described in detail here.

[0044] By adjusting the position of the unloading component 200 through the adjusting component 300, the unloading component 200 is tilted to be parallel to the segment 2 on the trailer. Then, the segment 2 is unloaded through the unloading component 200. This avoids the need to repeatedly move the trailer to adjust its position after the trailer deviates from the unloading device during the journey, thus reducing the difficulty of trailer operation and improving the efficiency of unloading the segment 2.

[0045] In one possible implementation, refer to Figure 2 and Figure 3 The adjustment assembly 300 includes a transverse frame 310 and two sets of adjustment members 320. The transverse frame 310 is slidably mounted on the connecting frame 100, and the adjustment members 320 are mounted on the transverse frame 310. The two sets of adjustment members 320 are respectively connected to both sides of the transverse frame 310. The adjustment members 320 respectively drive both sides of the transverse frame 310 to move, so that the transverse frame 310 is offset to be parallel to the tube segment 2.

[0046] Reference Figure 3 and Figure 4The transverse frame 310 includes a movable frame 312 and an offset frame 311. The movable frame 312 is slidably mounted on the connecting frame 100, and the offset frame 311 is hinged to the movable frame 312. The middle part of the offset frame 311 is hinged to the movable frame 312 via a hinge axis. The offset frame 311 is located outside the connecting frame 100, and the hinge axis of the offset frame 311 is vertical. Two adjusting members 320 are respectively connected to both ends of the offset frame 311 to drive the two ends of the offset frame 311 to move respectively. By adjusting the moving distance of the two ends of the offset frame 311, the offset frame 311 can be deflected. Furthermore, in the process of moving the offset frame 311, the movable frame 312 will also be moved.

[0047] The movable frame 312 is slidably mounted on the connecting frame 100 in a horizontal direction. The connecting frame 100 is a rectangular frame structure and is fixed to the frame 1 by bolts or welding. The connecting frame 100 has an internal cavity and an opening on one side, through which the movable frame 312 slides within the cavity. There is a gap between both sides of the transverse frame 310 and the connecting frame 100 for the transverse frame 310 to deflect. That is, there is a gap between the two sides of the transverse frame 310 and the sidewalls of the cavity, allowing the transverse frame 310 a certain deflection space. Two adjusting members 320 are installed in the cavity of the connecting member and connected to both sides of the transverse frame 310 respectively, to drive the two sides of the transverse frame 310 to move.

[0048] By driving the two adjusting components 320 to move the transverse frame 310 to different distances on both sides, the transverse frame 310 is deflected so that it is parallel to the tube segment 2. Simultaneously, the unloading assembly 200 on the transverse frame 310 is also made parallel to the tube segment 2, so as to facilitate the unloading of the tube segment 2 by the unloading assembly 200.

[0049] Furthermore, distance detection elements are also provided on both sides of the offset frame 311. The distance detection elements are used to detect the distance between the offset frame 311 and the segment 2. The unloading device has a controller. The distance detection elements are position sensors. The controller is communicatively connected to the distance detection elements and the adjustment element 320, so that the controller adjusts the position of both ends of the offset frame 311 in real time according to the distance between the offset frame 311 and the segment 2 detected by the distance detection elements. This ensures that the offset frame 311 is parallel to the segment 2 and that the distance between the offset frame 311 and the segment 2 is appropriate, which facilitates the unloading assembly 200 to unload the segment 2.

[0050] By setting up distance detection and control components, the automation level of the device can be improved, the difficulty of manual operation can be reduced, and the work efficiency can be increased.

[0051] In one possible implementation, refer to Figure 3The adjusting component 320 includes an adjusting cylinder, which is hinged to the connecting frame 100. The piston rod of the adjusting cylinder is hinged to the offset frame 311 to drive the offset frame 311 to move.

[0052] The adjusting cylinder is hinged within the connecting member, and the adjusting cylinder extends and retracts the piston rod in the horizontal direction. The adjusting piston rod and the offset frame 311 are also hinged together, so that when the adjusting cylinder pushes the offset frame 311 out, the adjusting cylinder, the offset frame 311 and the connecting frame 100 can all tilt at a certain angle to facilitate the offset of the offset frame 311.

[0053] In one possible implementation, refer to Figure 3 The adjustment assembly 300 also includes a guide 330, which is rotatably mounted on the transverse frame 310. The guide 330 guides both sides of the transverse frame 310 so that the transverse frame 310 moves out of the connecting frame 100.

[0054] The guide component 330 is mounted on the movable frame 312. The guide component 330 is a guide wheel, which is rotatably mounted on the movable frame 312. The axis of rotation of the guide wheel is in the vertical direction. Several guide wheels are installed on both side walls of the movable frame 312 to guide the movable frame 312. This prevents the movable frame 312 from abutting against the side wall of the cavity during deflection, which could cause the movable frame 312 to jam and become impossible to remove.

[0055] Furthermore, an adjusting bolt 331 is installed on the movable frame 312. The adjusting bolt 331 is connected to the guide wheel to fix the guide wheel on the movable frame 312. By changing the length of the adjusting bolt 331, the position of the guide wheel can be changed, thereby adjusting the distance between the guide wheel and the connecting frame 100.

[0056] In one possible implementation, refer to Figure 3 The transverse frame 310 is equipped with wheels that contact the connecting frame 100 to assist in the movement of the transverse frame 310.

[0057] The walking wheels 313 are provided in multiple ways and are mounted on the moving frame 312. The rotation axis of the walking wheels 313 is in the horizontal direction so as to drive the moving frame 312 to move within the connecting frame 100 and reduce frictional resistance.

[0058] In one possible implementation, refer to Figure 1 and Figure 2The unloading device also includes a longitudinal translation component 400, which includes a longitudinal translation frame 410 and a drive unit 420. The longitudinal translation frame 410 is longitudinally slidably disposed on the offset frame 311, and the drive unit 420 is disposed on the offset frame 311 and connected to the longitudinal translation frame 410. The unloading assembly 200 is disposed on the longitudinal translation frame 410, and the drive unit 420 drives the longitudinal translation frame 410 to slide on the offset frame 311.

[0059] The offset frame 311 is arranged along the length of the trailer's travel direction, and the longitudinal translation frame 410 is slidably connected to the offset frame 311 along its length. The unloading assembly 200 is mounted on the longitudinal translation frame 410. The longitudinal translation frame 410 is an arc-shaped hook, which is hung on the offset frame 311. The drive unit 420 is a structure consisting of a hydraulic cylinder, an electric push rod, or a pneumatic cylinder. The drive unit 420 is fixed to the offset frame 311, and its piston rod is connected to the longitudinal translation frame 410. Thus, the drive unit 420 drives the longitudinal translation frame 410 to move, thereby adjusting the movement of the unloading assembly 200. This allows for adjustment of the longitudinal position of the unloading assembly 200 according to the position of the segment 2, further reducing the trailer's parking accuracy requirements and improving the unloading efficiency of the segment 2.

[0060] In one possible implementation, refer to Figure 1 and Figure 2 The bottom of the offset frame 311 is provided with a traveling member 421, which is used to place on the tunnel to support the offset frame 311.

[0061] The traveling component 421 is a roller, which is installed at the bottom of the offset frame 311. The roller rolls on the tunnel to support the offset frame 311. During the lifting process of the lifting component 220, the weight of the segment 2 is transferred to the roller through the lifting component 220, thereby improving the load-bearing capacity of the unloading device and reducing the possibility of the segment 2 bending or deforming the unloading device or frame 1 during the lifting process, thus reducing damage to the unloading device and frame 1.

[0062] In one possible implementation, refer to Figure 1 and Figure 2 The unloading component 200 includes an outer frame 210 and a lifting component 220. The outer frame 210 is connected to the longitudinal translation frame 410, and the lifting component 220 is mounted on the outer frame 210. The lifting component 220 is used to lift the tube segment 2.

[0063] The outer frame 210 includes a crossbeam and two support legs, which are fixed at both ends of the crossbeam. The lifting components 220 are configured in two sets, which are respectively set at both ends of the crossbeam and connected to the inner frame 221.

[0064] Two support legs are welded and fixed to the ends of the crossbeam, making the outer frame 210 form a "door" shape, with the lifting component 220 located between the two support legs. There is a gap between the crossbeam and the lifting component 220, and even after the lifting assembly lifts the segment 2, there is still a gap between the lifting component 220 and the crossbeam to provide space for the mechanical claw of the segment 2 crane to move and avoid interference with the segment 2 crane.

[0065] Furthermore, the lifting component 220 includes an inner frame 221, a pawl 222, and a lifting cylinder 223. The pawl 222 is rotatably mounted on the inner frame 221, and the inner frame 221 is slidably mounted on the outer frame 210. The lifting cylinder 223 is mounted on the outer frame 210 and connected to the inner frame 221. The lifting cylinder 223 drives the inner frame 221 to rise and fall.

[0066] The inner frame 221 is slidably connected to the outer frame 210 in the vertical direction. The lifting cylinder 223 is fixed on the outer frame 210. The piston rod of the lifting cylinder 223 moves with the inner frame 221, thereby driving the inner frame 221 to move. The pawl 222 is installed on the inner frame 221. The pawl 222 moves by the lifting and lowering of the inner frame 221, thereby realizing the lifting and unloading of the pipe segment 2.

[0067] Reference Figure 1 and Figure 6 The lifting component 220 also includes a rotating component, which is a swing cylinder. The rotating component is mounted on the outer frame 210 and is connected to the pawl 222 to drive the pawl 222 to rotate.

[0068] The rotating component allows for the rotation of the pawl 222. When it is necessary to lift the segment 2, the pawl 222 is rotated out to the underside of the segment 2 to lift it. After lifting is completed, the pawl 222 is rotated to the inside of the outer frame 210 via the rotating component, thereby reducing the volume occupied by the entire device and facilitating the passage of vehicles transporting the segment 2.

[0069] Reference Figure 5 , Figure 6 and Figure 7 During unloading, trailer 3, carrying segment 2, stops at the segment unloading area. After the sensors in the unloading device measure the relative position of trailer 3 and a set of unloading devices, the unloading device control drive unit 420 moves the unloading assembly 200 to the center position of segment 2 and opens the pawl 222. Then, it controls the two adjusting components 320 to extend their piston rods, push the offset frame 311 out, and swing it at a certain angle to make the offset frame 311 parallel to segment 2. The offset frame 311 continues to move, inserting the pawl 222 into the bottom of segment 2, and lifting segment 2 through the unloading assembly 200. After the pawl 22 is lifted to a suitable position, trailer 3 is driven out, and segment 2 is placed on the ground, waiting for the segment crane to enter the segment unloading area to lift segment 2.

[0070] The segment unloading device provided in this application embodiment is connected to the frame 1 via a connecting frame 100. The unloading component 200 is installed on the connecting frame 100 for unloading the segment 2 on the trailer. The adjusting component 300 is installed on the connecting frame 100 to adjust the position of the unloading component 200, deflecting the unloading component 200 to be parallel to the segment 2 on the trailer. The segment 2 is then unloaded by the unloading component 200. This avoids the need to repeatedly move the trailer to adjust its position after the trailer deviates from the unloading device during travel, reducing the difficulty of trailer operation and improving the efficiency of unloading the segment 2.

[0071] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A segment unloading device, characterized in that, include: A connecting bracket (100) for connecting to a frame; An unloading component (200) is connected to the connecting frame (100) and is used to unload the tube segment; An adjustment component (300) is disposed on the connecting frame (100) and connected to the unloading component (200). The adjustment component (300) is used to adjust the position of the unloading component (200) so that the unloading component (200) is parallel to the segments on the trailer.

2. The segment unloading device according to claim 1, characterized in that, The adjustment assembly (300) includes a transverse frame (310) and two sets of adjustment members (320). The transverse frame (310) is slidably disposed on the connecting frame (100). The adjustment members (320) are disposed on the transverse frame (310). The two sets of adjustment members (320) are respectively connected to both sides of the transverse frame (310). The adjustment members (320) respectively drive both sides of the transverse frame (310) to move, so that the transverse frame (310) is offset to be parallel to the tube segment.

3. The segment unloading device according to claim 2, characterized in that, The transverse frame (310) includes a movable frame (312) and an offset frame (311). The movable frame (312) is slidably disposed on the connecting frame (100). The offset frame (311) is hinged to the movable frame (312). The adjusting member (320) includes an adjusting cylinder. The adjusting cylinder is hinged to the connecting frame (100). The piston rod of the adjusting cylinder is hinged to the offset frame (311) to drive the end of the offset frame (311) to move.

4. The segment unloading device according to claim 2, characterized in that, The adjustment assembly (300) further includes a guide (330), which is rotatably mounted on the connecting frame (100). The guide (330) guides both sides of the transverse frame (310) so that the transverse frame (310) moves out of the connecting frame (100).

5. The segment unloading device according to claim 2, characterized in that, The transverse frame (310) is provided with a traveling wheel (313), which contacts the connecting frame (100) to assist the transverse frame (310) in moving.

6. The segment unloading device according to claim 2, characterized in that, The transverse frame (310) has a distance between its two sides and the connecting frame (100) for the transverse frame (310) to deflect.

7. The segment unloading device according to claim 3, characterized in that, It also includes a longitudinal translation component (400), which includes a longitudinal translation frame (410) and a drive unit (420). The longitudinal translation frame (410) is longitudinally slidably disposed on the offset frame (311). The drive unit (420) is disposed on the offset frame (311) and connected to the longitudinal translation frame (410). The unloading component (200) is disposed on the longitudinal translation frame (410). The drive unit (420) drives the longitudinal translation frame (410) to slide on the offset frame (311).

8. The segment unloading device according to claim 7, characterized in that, The offset frame (311) is provided with a walking component (421) at its bottom, which is used to place on the tunnel to support the offset frame (311).

9. The segment unloading device according to claim 7, characterized in that, The unloading assembly (200) includes an outer frame (210) and a lifting member (220). The outer frame (210) is connected to the longitudinal translation frame (410). The lifting member (220) is disposed on the outer frame (210) and is used to lift the tube segment.

10. The segment unloading device according to claim 9, characterized in that, The lifting component (220) includes an inner frame (221), a pawl (222), and a lifting cylinder (223). The pawl (222) is rotatably mounted on the inner frame (221), and the inner frame (221) is slidably mounted on the outer frame (210). The lifting cylinder (223) is mounted on the outer frame (210) and connected to the inner frame (221). The lifting cylinder (223) drives the inner frame (221) to rise and fall.