Superlarge box ship section assembly precision monitoring equipment and monitoring method thereof

Abstract

The invention belongs to the technical field of precision monitoring, and discloses an oversized box ship segmented assembly precision monitoring device and a monitoring method thereof.The oversized box ship segmented assembly precision monitoring device comprises a rack, mounting shafts are movably mounted at the positions, close to the top end, of the left side and the right side of the rack correspondingly, and the outer side faces of the two mounting shafts are fixedly sleeved with adjusting frames correspondingly; and three-dimensional laser scanners are fixedly installed at the positions, close to the bottom end of the rack, of the adjusting frames correspondingly, a rail assembly is arranged at the bottom end of the rack, and transverse guide rails are installed at the left end and the right end of an inner cavity of the rack correspondingly. Through cooperation of the driving gear and the track assembly and cooperation between the rack and the track assembly, the device can complete autonomous movement to expand the scanning range through active displacement of the rack on the premise that a small number of mounting shafts are mounted, the device does not need to be manually held by hands, and the device is convenient to use. The whole process can be automatically completed, and the use cost and the monitoring quality can be effectively considered.

Description

Technical Field

[0001] This invention belongs to the field of precision monitoring technology, specifically a precision monitoring device and monitoring method for the segmented assembly of ultra-large container ships. Background Technology

[0002] The precision monitoring of the assembly of ultra-large container ships is achieved through the integration of modular processes and intelligent technologies. Its core lies in 3D data acquisition, dynamic adjustment, and end-to-end digital management. A digital twin model of the hull is constructed using 3D laser scanning technology, allowing for real-time comparison between design data and the actual assembly status, accurately identifying surface deformation and docking deviations. In key processes, laser calibration of the reference line during the jig manufacturing stage ensures the basic precision of each section; the welding process utilizes automated equipment combined with thermal deformation prediction algorithms to optimize the welding sequence and reduce deformation.

[0003] During its segmented assembly process, it is necessary to monitor its assembly accuracy. Currently, the main monitoring method used is to scan it with a 3D laser scanner. However, due to the huge size of the ship, conventional laser scanners can only cover a part of the area. Therefore, it is necessary to use multiple laser scanners in combination, or to use a handheld laser scanner for mobile scanning. The former is more expensive, while the latter has lower scanning accuracy.

[0004] Meanwhile, due to the ship's height, when facing ships at lower or higher elevations, the scanner's scanning angle is limited, making it impossible to accurately scan their vertical positions. This results in some data loss, affecting the monitoring quality, and urgently needs improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a monitoring device and method for the precision of assembling sections of ultra-large container ships, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precision monitoring device for the segmented assembly of ultra-large container ships, comprising a frame, on which mounting shafts are movably mounted on both the left and right sides near the top, and adjusting frames are fixedly sleeved on the outer sides of both mounting shafts. A three-dimensional laser scanner is fixedly mounted on each adjusting frame near the bottom of the frame. A track assembly is provided at the bottom of the frame. Transverse guide rails are installed at both the left and right ends of the frame's inner cavity. Self-adjusting components are movably engaged inside each of the two transverse guide rails. The other end of each self-adjusting component is connected to the inner side of the adjusting frame. A driven gear is movably mounted in the middle of the frame. Limit plates are fixedly mounted at both the front and rear ends of the driven gear, and the front and rear ends of the limit plates are connected to the two self-adjusting components.

[0007] Before using the device, the track assembly can be connected to the hull or external frame, and the track assembly should be located in the middle of the hull to ensure that the scanning positions of the upper and lower 3D laser scanners can cover the upper and lower ends of the hull. After the track assembly is installed, the frame and track assembly need to be interlocked to complete the preparation work.

[0008] As a further technical solution of the present invention, a locking frame is fixedly installed on one side of the frame, a motor is fixedly installed on the inner side of the locking frame, and a main shaft is fixedly installed at the output end of the motor.

[0009] As a further technical solution of the present invention, the main shaft passes through the front and rear ends of the frame and is movably connected to the frame, and a drive gear located inside the frame is fixedly sleeved on the outer side of the main shaft.

[0010] During scanning and monitoring, two 3D laser scanners, one above and one below, can be used to scan and monitor the assembly area of ​​the hull. When the left and right scanning range of the 3D laser scanner is insufficient, the motor can be turned on to drive the main shaft to rotate. At this time, the drive gear on the outer side of the main shaft rotates accordingly and transmits power to the driven gear, driving the driven gear to rotate.

[0011] As a further technical solution of the present invention, the top end of the driving gear is meshed with the driven gear, and the bottom end of the driving gear is meshed with the top end of the track assembly.

[0012] As a further technical solution of the present invention, the track assembly includes a locking track, a rack is fixedly installed at the top of the locking track, and snap-fit ​​components are fixedly installed on both the left and right sides of the top of the locking track. The locking track is movably snapped into the bottom of the frame through the snap-fit ​​components.

[0013] When the drive gear rotates, it meshes with the rack, driving the frame to move relative to the track assembly. This synchronously moves the two 3D laser scanners left and right, expanding their scanning range and enabling them to cover a larger area for monitoring.

[0014] By utilizing the coordination between the drive gear and the track assembly, as well as the coordination between the frame and the track assembly, the device can autonomously move to expand the scanning range by actively displacing the frame, with only a few mounting shafts installed. This is achieved without manual handling of the device, and the entire process can be completed automatically, effectively balancing operating costs and monitoring quality.

[0015] As a further technical solution of the present invention, the self-adjusting component includes a first fixed seat, which is connected to the middle of the inner side of the adjusting frame. The end of the first fixed seat away from the adjusting frame is movably connected to a connecting rod through a rotating shaft, and the end of the connecting rod away from the first fixed seat is movably connected to a second fixed seat through a rotating shaft.

[0016] As a further technical solution of the present invention, a guide block is fixedly installed at the end of the second fixed seat away from the first fixed seat. The second fixed seat is movably engaged with the transverse guide rail through the guide block, and the guide block moves up and down relative to the second fixed seat.

[0017] As a further technical solution of the present invention, one end of each guide block is fixedly mounted with an installation shaft, and a first transmission rod is movably sleeved on the outer side of the installation shaft. The end of the first transmission rod away from the installation shaft is movably connected to a second transmission rod through a rotating shaft.

[0018] As a further technical solution of the present invention, the second transmission rod is fixedly connected to the front and rear ends of the limiting plate through a locking shaft, and the two locking shafts are symmetrically installed at the front and rear ends of the limiting plate.

[0019] When the driven gear rotates, it drives the front and rear limit plates to rotate. At this time, it can synchronously drive the second transmission rod to swing, and also drive the first transmission rod to swing, and apply a pushing or pulling force to the guide block. As the limit plates continue to rotate, they can drive the guide block to move back and forth relative to the transverse guide rail. At this time, the connecting rod is subjected to the pulling and pushing forces and swings continuously, and applies a certain pulling and pushing force to the adjusting frame. At this time, the adjusting frame can swing back and forth relative to the mounting shaft, and finally drive the three-dimensional laser scanner on one side to swing up and down, expanding the vertical scanning range.

[0020] By utilizing the active displacement process of the rack and the coordinated action between the driven gear, the driving gear, and the self-adjusting components, the rack can actively move while simultaneously driving the 3D laser scanner to swing up and down. The entire process can be completed synchronously, allowing the 3D laser scanner to cover a larger scanning range and eliminate blind spots. At the same time, it eliminates the need for multiple 3D laser scanners, effectively reducing operating costs while increasing the scanning and monitoring range and improving the overall monitoring quality.

[0021] A monitoring method for a precision monitoring device for the segmented assembly of ultra-large container ships includes the following steps: S1: When monitoring assembly accuracy, the locking track is connected to the hull or external frame and the track assembly is kept in the middle of the hull. The assembly part of the hull is scanned and monitored by two 3D laser scanners, one above and one below. S2: During scanning and monitoring, the motor drives the spindle to rotate. At this time, the drive gear rotates and drives the meshing driven gear to rotate. The front and rear limit plates rotate accordingly. When the drive gear rotates, it can drive the entire frame to move relative to the rack and drive the two upper and lower 3D laser scanners to move left and right, thus completing the mobile scanning and monitoring. S3: When the two limit plates rotate, the second transmission rod swings accordingly and drives the first transmission rod to swing, and applies pushing and pulling forces to the guide block, causing the guide block to move up and down. At this time, the connecting rod deflects accordingly and applies pulling and pushing forces to the adjustment frame, ultimately driving the adjustment frame to rotate back and forth relative to the mounting shaft, that is, driving the 3D laser scanner to swing up and down, covering a larger scanning area and completing the overall monitoring.

[0022] The beneficial effects of this invention are as follows: (1) This invention utilizes the cooperation between the active gear and the track assembly, as well as the cooperation between the frame and the track assembly, so that the device can move autonomously to expand the scanning range by the active displacement of the frame, provided that a small number of mounting shafts are installed. Moreover, no manual hand-held device is required, and the whole process can be completed automatically, effectively balancing the cost of use and the quality of monitoring.

[0023] (2) By utilizing the active displacement process of the frame and the cooperation between the driven gear, the driving gear and the self-adjusting component, the active displacement of the frame can drive the three-dimensional laser scanner to swing up and down simultaneously. The whole process can be completed synchronously, so that the three-dimensional laser scanner can cover a larger scanning range and monitoring blind spots. At the same time, it is not necessary to set up a large number of three-dimensional laser scanners for scanning, which effectively reduces the cost of use, while increasing the scanning monitoring range and improving the overall monitoring quality. Attached Figure Description

[0024] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 This is an exploded view of the frame and track assembly structure of the present invention; Figure 3 This is a separate schematic diagram of the track assembly structure of the present invention; Figure 4 This is a separate schematic diagram of the adjusting frame structure of the present invention; Figure 5 This is a cross-sectional schematic diagram of the internal structure of the frame of the present invention; Figure 6 This is a schematic diagram of the engagement of the driving gear and driven gear structure of the present invention; Figure 7 This is a separate schematic diagram of the self-adjusting component structure of the present invention; In the diagram: 1. Frame; 2. Mounting shaft; 3. Adjusting frame; 4. 3D laser scanner; 5. Track assembly; 501. Locking track; 502. Rack; 503. Snap-fit ​​component; 6. Transverse guide rail; 7. Locking frame; 8. Motor; 9. Main shaft; 10. Driving gear; 11. Driven gear; 12. Limiting plate; 13. Self-adjusting assembly; 131. First fixed seat; 132. Second fixed seat; 133. Connecting rod; 134. Guide block; 135. Mounting shaft; 136. First transmission rod; 137. Second transmission rod. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1 to 7 As shown in the embodiment of the present invention, a precision monitoring device for the segmented assembly of an ultra-large container ship includes a frame 1. Mounting shafts 2 are movably installed on both sides of the frame 1 near the top. Adjustment frames 3 are fixedly sleeved on the outer sides of the two mounting shafts 2. Three-dimensional laser scanners 4 are fixedly installed on the adjustment frames 3 near the bottom of the frame 1. A track assembly 5 is provided at the bottom of the frame 1. Transverse guide rails 6 are installed on both the left and right ends of the inner cavity of the frame 1. Self-adjusting components 13 are movably engaged inside the two transverse guide rails 6. The other end of the self-adjusting components 13 is connected to the inner side of the adjustment frame 3. A driven gear 11 is movably installed in the middle of the frame 1. Limiting plates 12 are fixedly installed on both the front and rear ends of the driven gear 11. The front and rear ends of the limiting plates 12 are connected to the two self-adjusting components 13.

[0027] Before using the device, the track assembly 5 can be connected to the hull or external frame, and the track assembly 5 should be located in the middle of the hull to ensure that the scanning positions of the two 3D laser scanners 4 can cover the upper and lower ends of the hull. After the installation of the track assembly 5 is completed, the frame 1 and the track assembly 5 should be interlocked to complete the preparation work.

[0028] like Figure 1 and Figure 2 as well as Figure 5 and Figure 6 As shown, a locking frame 7 is fixedly installed on one side of the frame 1, a motor 8 is fixedly installed on the inner side of the locking frame 7, a spindle 9 is fixedly installed at the output end of the motor 8, the spindle 9 passes through the front and rear ends of the frame 1 and is movably connected to the frame 1, and a drive gear 10 located inside the frame 1 is fixedly sleeved on the outer side of the spindle 9.

[0029] During scanning and monitoring, two 3D laser scanners 4, one above the other, can be used to scan and monitor the assembly area of ​​the hull. When the left and right scanning range of the 3D laser scanner 4 is insufficient, the motor 8 can be turned on to drive the main shaft 9 to rotate. At this time, the drive gear 10 on the outer side of the main shaft 9 will rotate and transmit power to the driven gear 11, driving the driven gear 11 to rotate.

[0030] like Figure 5 and Figure 6 As shown, the top end of the driving gear 10 is meshed with the driven gear 11, and the bottom end of the driving gear 10 is meshed with the top end of the track assembly 5. The track assembly 5 includes a locking track 501, a rack 502 is fixedly installed on the top end of the locking track 501, and snap-fit ​​pieces 503 are fixedly installed on both the left and right sides of the top end of the locking track 501. The locking track 501 is movably snapped with the bottom end of the frame 1 through the snap-fit ​​pieces 503.

[0031] Example: When the drive gear 10 rotates, it meshes with the rack 502. When the drive gear 10 rotates, it can drive the frame 1 to move relative to the track assembly 5. At this time, it can synchronously drive the two upper and lower three-dimensional laser scanners 4 to move left and right, thereby expanding the left and right scanning position of the three-dimensional laser scanners 4. This allows the three-dimensional laser scanners 4 to cover a larger scanning range and achieve large-area monitoring.

[0032] By utilizing the cooperation between the drive gear 10 and the track assembly 5, as well as the cooperation between the frame 1 and the track assembly 5, the device can move autonomously to expand the scanning range by actively displacing the frame 1, provided that a small number of mounting shafts 2 are installed. This eliminates the need for manual handling of the device, and the entire process can be completed automatically, effectively balancing operating costs and monitoring quality.

[0033] like Figure 1 and Figure 2 as well as Figure 5 and Figure 7As shown, the self-adjusting assembly 13 includes a first fixed seat 131, which is connected to the middle of the inner side of the adjusting frame 3. The end of the first fixed seat 131 away from the adjusting frame 3 is movably connected to a connecting rod 133 via a pivot. The end of the connecting rod 133 away from the first fixed seat 131 is movably connected to a second fixed seat 132 via a pivot. A guide block 134 is fixedly installed on the end of the second fixed seat 132 away from the first fixed seat 131. The second fixed seat 132 is connected to the horizontal... The guide rails 6 are movably engaged, and the guide block 134 moves up and down relative to the second fixed seat 132. One end of each guide block 134 is fixedly mounted with an installation shaft 135. The outer side of the installation shaft 135 is movably sleeved with a first transmission rod 136. The end of the first transmission rod 136 away from the installation shaft 135 is movably connected to a second transmission rod 137 through a rotating shaft. The second transmission rod 137 is fixedly connected to the front and rear ends of the limiting plate 12 through a locking shaft. The two locking shafts are symmetrically installed at the front and rear ends of the limiting plate 12.

[0034] Example: When the driven gear 11 rotates, it can drive the two limiting plates 12 at the front and rear to rotate. At this time, it can synchronously drive the second transmission rod 137 to swing, and drive the first transmission rod 136 to swing, and apply a pushing or pulling force to the guide block 134. As the limiting plate 12 continues to rotate, it can drive the guide block 134 to move back and forth relative to the transverse guide rail 6. At this time, the connecting rod 133 is subjected to the pulling and pushing forces and swings continuously, and applies a certain pulling and pushing force to the adjusting frame 3. At this time, the adjusting frame 3 can swing back and forth relative to the mounting shaft 2, and finally drive the three-dimensional laser scanner 4 on one side to swing up and down, expanding the vertical scanning range.

[0035] By utilizing the active displacement process of the frame 1, and the cooperation between the driven gear 11, the driving gear 10, and the self-adjusting component 13, the frame 1 can drive the 3D laser scanner 4 to swing up and down simultaneously during its active displacement. The entire process can be completed synchronously, allowing the 3D laser scanner 4 to cover a larger scanning range and monitoring blind spots. At the same time, it eliminates the need to set up a large number of 3D laser scanners 4 for scanning, effectively reducing operating costs, while increasing the scanning and monitoring range and improving the overall monitoring quality.

[0036] A monitoring method for a precision monitoring device for the segmented assembly of ultra-large container ships includes the following steps: S1: When monitoring the assembly accuracy, the locking track 501 is connected to the hull or external frame and the track assembly 5 is kept in the middle of the hull. The assembly part of the hull is scanned and monitored by two upper and lower three-dimensional laser scanners 4. S2: During scanning and monitoring, the motor 8 is turned on to drive the spindle 9 to rotate. At this time, the drive gear 10 rotates and drives the meshing driven gear 11 to rotate. At this time, the two limit plates 12 at the front and rear rotate. When the drive gear 10 rotates, it can drive the frame 1 to move relative to the rack 502, and drive the two upper and lower three-dimensional laser scanners 4 to move left and right, thus completing the mobile scanning and monitoring. S3: When the two limit plates 12 rotate, the second transmission rod 137 swings accordingly and drives the first transmission rod 136 to swing, and applies pushing and pulling forces to the guide block 134, causing the guide block 134 to move up and down. At this time, the connecting rod 133 deflects accordingly and applies pulling and pushing forces to the adjusting frame 3, ultimately driving the adjusting frame 3 to rotate back and forth relative to the mounting shaft 2, that is, driving the three-dimensional laser scanner 4 to swing up and down, covering a larger scanning area and completing the overall monitoring.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision monitoring device for the segmented assembly of ultra-large container ships, comprising a frame (1), characterized in that: Mounting shafts (2) are movably mounted on both sides of the frame (1) near the top. Adjustment frames (3) are fixedly sleeved on the outer sides of the two mounting shafts (2). Three-dimensional laser scanners (4) are fixedly mounted on the adjustment frames (3) near the bottom of the frame (1). A track assembly (5) is provided at the bottom of the frame (1). Horizontal guide rails (6) are installed on both the left and right ends of the inner cavity of the frame (1). Self-adjusting components (13) are movably engaged inside the two horizontal guide rails (6). The other end of the self-adjusting components (13) is connected to the inner side of the adjustment frame (3). A driven gear (11) is movably mounted in the middle of the frame (1). Limit plates (12) are fixedly mounted on both the front and rear ends of the driven gear (11). The front and rear ends of the limit plates (12) are connected to the two self-adjusting components (13).

2. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 1, characterized in that: A locking frame (7) is fixedly installed on one side of the frame (1), and a motor (8) is fixedly installed on the inner side of the locking frame (7). A spindle (9) is fixedly installed at the output end of the motor (8).

3. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 2, characterized in that: The main shaft (9) passes through the front and rear ends of the frame (1) and is movably connected to the frame (1). The outer side of the main shaft (9) is fixedly sleeved with a drive gear (10) located inside the frame (1).

4. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 3, characterized in that: The top end of the driving gear (10) is meshed with the driven gear (11), and the bottom end of the driving gear (10) is meshed with the top end of the track assembly (5).

5. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 4, characterized in that: The track assembly (5) includes a locking track (501), a rack (502) is fixedly installed at the top of the locking track (501), and snap-fit ​​pieces (503) are fixedly installed on both the left and right sides of the top of the locking track (501). The locking track (501) is movably snapped to the bottom of the frame (1) through the snap-fit ​​pieces (503).

6. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 5, characterized in that: The self-adjusting assembly (13) includes a first fixed seat (131), which is connected to the middle of the inner side of the adjusting frame (3). The end of the first fixed seat (131) away from the adjusting frame (3) is movably connected to a connecting rod (133) via a rotating shaft. The end of the connecting rod (133) away from the first fixed seat (131) is movably connected to a second fixed seat (132) via a rotating shaft.

7. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 6, characterized in that: The second fixed seat (132) is fixedly installed with a guide block (134) at the end away from the first fixed seat (131). The second fixed seat (132) is movably engaged with the transverse guide rail (6) through the guide block (134). The guide block (134) moves up and down relative to the second fixed seat (132).

8. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 7, characterized in that: One end of each guide block (134) is fixedly mounted with an installation shaft (135), and the outer side of the installation shaft (135) is movably sleeved with a first transmission rod (136). The end of the first transmission rod (136) away from the installation shaft (135) is movably connected to a second transmission rod (137) through a rotating shaft.

9. The monitoring equipment for the assembly accuracy of ultra-large container ship sections according to claim 8, characterized in that: The second transmission rod (137) is fixedly connected to the front and rear ends of the limiting plate (12) through the locking shaft, and the two locking shafts are symmetrically installed at the front and rear ends of the limiting plate (12).

10. The monitoring method for a precision monitoring device for the segmented assembly of an ultra-large container ship according to claim 9, characterized in that: Includes the following steps: S1: When monitoring the assembly accuracy, the locking rail (501) is connected to the hull or external frame and the rail assembly (5) is kept in the middle of the hull. The assembly part of the hull is scanned and monitored by two upper and lower three-dimensional laser scanners (4). S2: During scanning monitoring, the motor (8) is turned on to drive the spindle (9) to rotate. At this time, the drive gear (10) rotates and drives the meshing driven gear (11) to rotate. At this time, the front and rear limit plates (12) rotate. When the drive gear (10) rotates, it can drive the frame (1) to move relative to the rack (502) and drive the upper and lower three-dimensional laser scanners (4) to move left and right to complete the mobile scanning monitoring. S3: When the two limit plates (12) rotate, the second transmission rod (137) swings and drives the first transmission rod (136) to swing, and applies a pushing and pulling force to the guide block (134), causing the guide block (134) to move up and down. At this time, the connecting rod (133) deflects and applies a pulling and pushing force to the adjusting frame (3), which eventually drives the adjusting frame (3) to rotate back and forth relative to the mounting shaft (2), that is, drives the three-dimensional laser scanner (4) to swing up and down, covering a larger scanning area and completing the overall monitoring.

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