Head and spherical tank cross-section measuring instrument

Abstract

This invention proposes a cross-sectional inspection instrument for end caps and spherical storage tanks. It includes a base, a horizontal rotating seat, a vertical rotating seat, a 3D scanner, and a support base. The horizontal rotating seat is located on the upper part of the base and rotates horizontally. The vertical rotating seat is mounted on the horizontal rotating seat and rotates vertically. The 3D scanner is mounted on the vertical rotating seat and is used for cross-sectional inspection of end caps and spherical storage tanks. The support base is located at the lower part of the base to support the base and maintain the stability of the 3D scanner. The vertical rotating seat rotates vertically simultaneously with the horizontal rotating seat, achieving 360-degree omnidirectional scanning without blind spots. The vertical rotating seat's horizontal rotation during scanning improves the measurement accuracy and working efficiency of the 3D scanner. The support base includes a spherical tank support and an end cap support, used for supporting the cross-sectional inspection of end caps and spherical storage tanks, respectively. This multi-functional instrument improves product utilization and reduces production costs.

Description

Technical Field

[0001] This invention relates to cross-sectional inspection in the field of pressure vessels, and particularly to a cross-sectional inspection instrument for end caps and spherical storage tanks. Background Technology

[0002] Currently, the inspection of the curved surface shape and dimensions of spherical storage tanks and heads relies entirely on manual use of conventional measuring tools, such as tape measures, rulers, and angle gauges, combined with geometric calculations, or the use of optical instruments, such as theodolites and levels, for local or overall dimensional verification. For spherical tank shell plates and heads, a template inspection method is used, which involves making templates with the same curvature as the design and fitting them to the curved surface to check the gaps and determine the shape deviation.

[0003] However, in the process of implementing the technical solutions of the embodiments of this application, the inventors of this application discovered that the above technical solutions have at least the following technical problems: Excessive cross-sectional shape of spherical storage tanks and heads can have the following effects on pressure vessels: 1. Increased internal stress, leading to strength failure: Dimensional errors in spherical tanks and heads can cause uneven stress distribution, reducing their load-bearing capacity and making them prone to deformation or breakage. This affects the overall strength and stability of the container, increasing the risk of accidents during use.

[0004] 2. Shortened fatigue life: Dimensional errors in spherical storage tanks and end caps increase stress concentration areas within the vessel, leading to a reduced fatigue life. Excessive dimensional errors can cause fatigue fracture within a short period, significantly shortening the vessel's service life.

[0005] 3. Increased maintenance costs: If the dimensional error of the spherical tank and the head is too large, it may cause problems with the overall design of the container, which will require maintenance of the spherical shell plate and the head.

[0006] In summary, the cross-sectional shape and dimensions of the spherical storage tank and its head affect a series of factors, including the safety and cost of the overall equipment.

[0007] Currently, neither of the above two methods can provide a holistic and macroscopic assessment, resulting in significant measurement errors. All inspections of spherical storage tanks and end caps are conducted manually, leading to low efficiency, insufficient accuracy, and susceptibility to subjective biases from operators.

[0008] The purpose of this invention is to provide a digital instrument for detecting the cross-sectional shape of spherical storage tanks and their heads. Through an automated detection process and high-precision data analysis, it can accurately detect the cross-sectional shape of spherical storage tanks and their heads and quickly determine whether they meet the standard requirements. Summary of the Invention

[0009] To address the shortcomings of existing technologies and the problem of detecting the curved shape and dimensions of end caps and spherical storage tanks, this application provides a cross-sectional inspection instrument for end caps and spherical storage tanks. This instrument rotates horizontally along with a horizontal rotating base, and can also rotate vertically. A 3D scanner is housed in the vertical rotating base, enabling 360-degree omnidirectional scanning without blind spots, thus solving the technical problem of detecting the curved shape and dimensions of end caps and spherical storage tanks.

[0010] The solution adopted by the embodiments of this application to solve the technical problem is: The head and spherical tank cross-section inspection instrument includes a base, a horizontal rotating seat, a vertical rotating seat, a 3D scanner, and a support base; The base consists of a horizontal rotating seat located on top of the base for horizontal rotation, a vertical rotating seat mounted on top of the horizontal rotating seat for vertical rotation, a 3D scanner mounted on the vertical rotating seat for inspection of end caps and cross-sections of spherical storage tanks, and a support base located at the bottom of the base for supporting the base and maintaining the stability of the 3D scanner. The vertical rotating base rotates horizontally while simultaneously rotating vertically, enabling the 3D scanner to perform 360-degree all-around scanning without blind spots.

[0011] In order to further solve the technical problems to be solved by the embodiments of this application, the horizontal rotating seat of the head and spherical tank section detector provided by the embodiments of this application includes a horizontal seat and a horizontal rotating mechanism; The horizontal seat is rotatably connected to the base, and the horizontal rotation mechanism drives the horizontal seat to rotate in the horizontal direction.

[0012] Furthermore, the horizontal seat includes a base plate, a connecting seat, and a support frame; The base plate is set on one end of the base; the upper end of the connecting seat is connected to the base plate, and the lower end is connected to the base; the connecting seat is a hollow structure and is fixed to the base; bearings are set at both ends of the connecting seat, and a horizontal rotating shaft is assembled between the bearings to form the rotation center of the horizontal seat, and is limited by the end cover and bolt assembly; the upper part of the horizontal rotating shaft is provided with a shoulder to support the base plate, and the base plate can rotate around the rotation center of the horizontal seat; the support frame is symmetrically arranged on the upper surface of the base plate around the rotation center of the horizontal seat to form symmetrical support wing plates, which are used to assemble the vertical rotating seat, so that the vertical rotating seat can rotate vertically between the two support frames.

[0013] Furthermore, the horizontal rotation mechanism includes a first motor, a first reducer, a first drive gear, a first driven gear, and a first battery; A first motor is provided on the lower surface of the other end of the base. A first reducer is connected to the first motor. The output end of the first reducer passes through the base plate and is connected to a first drive gear. A first driven gear is provided at the bottom of the base plate. The first drive gear meshes with the first driven gear. The base plate is driven to rotate by the first motor and the first reducer, thereby realizing the horizontal rotation mechanism driving the horizontal seat to rotate in the horizontal direction. A first battery is installed on the lower surface of the base to provide power to the first motor.

[0014] Furthermore, the vertical rotating seat includes a vertical seat and a vertical rotating mechanism; The vertical mount is used to house the 3D scanner and is cantilevered between two support frames; the vertical rotation mechanism drives the vertical mount to rotate in the vertical direction.

[0015] Furthermore, the vertical seat includes a seat body, a cantilever shaft, and a shaft seat; The base has a box-like structure, and the 3D scanner is housed inside the base. Cantilever shafts are set on both sides of the base to form support points for the rotation of the base. The bearing seat is set on the top of the support frame of the horizontal base, and cantilever shafts with bearings are installed inside to form two rotation support points for the vertical base.

[0016] Furthermore, the vertical rotation mechanism includes a second motor, a second reducer, a second drive gear, a second driven gear, and a second battery; A second motor is installed on one side of the support frame, and a second reducer is connected to the second motor. The output end of the second reducer extends inward through the support frame and is equipped with a second drive gear. A second driven gear is mounted on a cantilever shaft in the top bearing of the support frame. The second drive gear meshes with the second driven gear, and the second motor and the second reducer drive the vertical seat to rotate vertically on the horizontal seat. A second battery is installed on the other side of the support frame to provide power to the second motor.

[0017] Furthermore, the support includes a spherical tank support and a head support; The head support is installed on the head and is used for head section inspection support; the spherical tank support is installed on the manhole flange of the spherical storage tank and is used for spherical tank section inspection support.

[0018] Furthermore, the spherical tank support includes a first support rod, a first telescopic support arm, a first adjusting screw, a first screw nut, a limit block, a support foot, and a first adjusting wrench; The first support rod is a rectangular tube, used to fix one end of the spherical tank support base to the lower surface of the base, and arranged in a circular array around the rotation center of the horizontal seat; the first telescopic support arm is a curved rod, with one end telescopically connected to the first support rod; the support foot is a U-shaped structure, connected to the other end of the first telescopic support arm, used to support the manhole flange and fix the base; the first adjusting screw is a stepped threaded shaft, located at the lower part of the first telescopic support arm, used to adjust the extension or retraction of the first telescopic support arm; the first nut is fixed at the lower part of the first support rod, one end of the first adjusting screw is screwed to the first nut, and the first adjusting screw passes through the first nut and extends towards the rotation center of the horizontal seat; the limiting block is located at the lower part of the first telescopic support arm, used to limit the first adjusting screw; the first adjusting wrench is used to rotate the first adjusting screw to adjust the position of the support foot on the manhole flange.

[0019] Furthermore, the head support includes a second support rod, a second telescopic arm, a second adjusting screw, a second screw nut, a suction cup, and a second adjusting wrench; The second support rod is a rectangular tube used to fix one end of the end cap support seat to the lower surface of the base, and is arranged in a circular array around the rotation center of the horizontal seat; the second telescopic arm is a curved rod, one end of which is telescopically connected to the second support rod; a suction cup is used to place the other end of the second telescopic arm on the end cap and fix the base; the second adjusting screw is a stepped threaded shaft, located at the lower part of the second telescopic arm, used to adjust the extension or retraction of the second telescopic support arm; the second nut is fixed at the lower part of the second support rod, one end of the second adjusting screw is screwed to the second nut, and the second adjusting screw passes through the second nut and extends towards the rotation center of the horizontal seat; the other end of the second adjusting screw abuts against the curved part of the second telescopic arm for limiting; the second adjusting wrench is used to rotate the second adjusting screw to adjust the position of the second telescopic arm; The suction cup is inserted into the other end of the second telescopic arm and is detachably connected to the cotter pin via a pin.

[0020] Furthermore, the head and spherical tank cross-section detector also includes a controller. The controller remotely controls the first and second motors to drive the horizontal rotating seat to rotate horizontally and the vertical rotating seat to rotate vertically; at the same time, it controls the three-dimensional scanner to perform a 360-degree all-round scan without blind spots.

[0021] Positive effects: One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. Because the embodiments of this application adopt the technical means of horizontal rotating seat sitting on the base and rotating in the horizontal direction, and vertical rotating seat rotating in the vertical direction, the vertical rotating seat can rotate in the vertical direction while rotating horizontally along with the horizontal rotating seat. The 3D scanner is housed in the vertical rotating seat, which effectively solves the technical problem of detecting the curved shape and size of the end cap and spherical storage tank in the prior art. The 3D scanner can perform 360-degree all-round scanning without dead angles, thereby achieving the technical effect of improving the measurement accuracy and working efficiency of the 3D scanner. 2. Because the embodiments of this application adopt the technical means of support base including spherical tank support base and head support base, the head support base is set on the head and used for head cross-section detection support; the spherical tank support base is set on the manhole flange of the spherical storage tank and used for spherical storage tank cross-section detection support; it effectively solves the technical problem of detecting the curved shape and size of the head and spherical storage tank in the prior art. This device can scan the head and spherical storage tank and complete the detection of the head and spherical storage tank cross-section. It is multi-functional and thus achieves the technical effect of improving product utilization and reducing production costs.

[0022] It is suitable for use as a cross-sectional inspection instrument for end caps and spherical storage tanks. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is the southeast isometric view of this embodiment; Figure 2 This is a partial view of embodiment D; Figure 3 This is the southwest isometric view of this embodiment; Figure 4 This is the northwest isometric view of this embodiment; Figure 5 This is a partial view of embodiment E; Figure 6 This is the front view of this embodiment; Figure 7 This is the isometric view AA of this embodiment; Figure 8 This is the right view of this embodiment; Figure 9 This is a CC cross-sectional view of this embodiment; Figure 10 This is a top view of this embodiment; Figure 11 This is the isometric view of BB in this embodiment; Figure 12 This is the southeast isometric view of the spherical storage tank; Figure 13 This is the southwest isometric view of the spherical storage tank; Figure 14 This is the southwest isometric view of the head; Figure 15 This is the isometric view of the northwest end cap.

[0025] In the picture: 100. Base; 200. Horizontal rotating seat, 210. Horizontal seat; 211. Base plate; 212. Connecting seat; 213. Support frame; 220. Horizontal rotation mechanism; 221. First motor; 222. First reducer; 223. First drive gear; 224. First driven gear; 225. First battery; 300. Vertical rotating seat, 310. Vertical seat; 311. Seat body; 312. Cantilever shaft; 313. Shaft seat; 320. Vertical rotation mechanism; 321. Second motor; 322. Second reducer; 323. Second drive gear; 324. Second driven gear; 325. Second battery; 400 3D scanner; 500. Support base; 510. Spherical tank support base; 511. First support rod; 512. First telescopic support arm; 513. First adjusting screw; 514. First screw nut; 515. Limit block; 516. Support foot; 517. First adjusting wrench; 520. Head support seat; 521. Second support rod; 522. Second telescopic arm; 523. Second adjusting screw; 524. Second screw nut; 525. Second adjusting wrench; 526. Suction cup. Detailed Implementation

[0026] 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. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] According to the instruction manual Figure 1-15 As shown, the head and spherical tank cross-section inspection instrument includes a base 100, a horizontal rotating seat 200, a vertical rotating seat 300, a 3D scanner 400, and a support seat 500. The base 100 is a plate-shaped structure used to support the horizontal rotating base 200, the vertical rotating base 300, and the 3D scanner 400; A horizontal rotating seat 200 is disposed on the upper part of the base 100 for rotating in the horizontal direction; The vertical rotary seat 300 is mounted on the horizontal rotary seat 200 for rotation in the vertical direction; The 3D scanner 400 is mounted on the vertical rotating base 300 and is used to acquire the geometric shape and structural information of the surface of the head and spherical storage tank through optical, laser or photogrammetric techniques, and convert it into a digital model for the cross-sectional inspection of the head and spherical storage tank. In this embodiment, the 3D scanner 400 is equipped with a memory card and uses a GeoScanS2 3D LiDAR scanner. The 3D scanner 400 can be remotely powered on and off, and data transmission can also be remotely achieved. The support base 500 is located at the lower part of the base 100 to support the base 100 and maintain the stability of the 3D scanner 400; The vertical rotating base 300 rotates in the horizontal direction while the horizontal rotating base 200 rotates in the vertical direction, thereby enabling the 3D scanner 400 to perform 360-degree all-round scanning without blind spots, thus improving measurement accuracy and work efficiency.

[0028] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: Since the horizontal rotating base 200 sits on the base 100 and rotates horizontally, while the vertical rotating base 300 rotates vertically, the vertical rotating base 300 can rotate vertically while the horizontal rotating base 200 rotates horizontally. The 3D scanner 400 is housed in the vertical rotating base 300, thereby enabling the 3D scanner 400 to perform 360-degree all-around scanning without blind spots, improving the measurement accuracy and working efficiency of the 3D scanner 400. Since the support base 500 includes a spherical tank support base 510 and a head support base 520, with the head support base 520 mounted on the head for head section inspection support and the spherical tank support base 510 mounted on the manhole flange of the spherical storage tank for spherical tank section inspection support, this device can scan the head and spherical storage tank, and complete the inspection of the head and spherical storage tank sections. It is a multi-purpose device, improving product utilization and reducing production costs.

[0029] To ensure the stability of the structure of this invention, please refer to the appendix to the specification. Figure 1 , 2 3, 7, 9, 10, The horizontal rotating seat 200 includes a horizontal seat 210 and a horizontal rotating mechanism 220; The horizontal seat 210 is rotatably connected to the base 100, and the horizontal rotation mechanism 220 drives the horizontal seat 210 to rotate in the horizontal direction.

[0030] Specifically, the horizontal seat 210 includes a base plate 211, a connecting seat 212, and a support frame 213; The base plate 211 is a disc structure and is set on one end of the base 100; The upper end of the connecting seat 212 is connected to the base plate 211, and the lower end is connected to the base 100. The connecting seat 212 has a hollow structure and is fixed to the base 100. Bearings are provided at both ends of the connecting seat 212, and a horizontal rotating shaft is assembled between the bearings to form the rotation center of the horizontal seat 210, and is limited by the end cover and bolt assembly. The upper part of the horizontal rotating shaft is provided with a shoulder to support the base plate 211, and the base plate 211 can rotate around the rotation center of the horizontal seat 210. The support frame 213 is a structural plate, symmetrically arranged on the upper surface of the base plate 211 with the rotation center of the horizontal seat 210 as the center, forming symmetrical support wing plates, which are used to assemble the vertical rotating seat 300, so that the vertical rotating seat 300 can rotate vertically between the two support frames 213.

[0031] In this embodiment, the bearing selected is 61906 GB276.

[0032] Specifically, the horizontal rotation mechanism 220 includes a first motor 221, a first reducer 222, a first drive gear 223, a first driven gear 224, and a first battery 225; A first motor 221 is provided on the lower surface of the other end of the base 100. A first reducer 222 is connected to the first motor 221. The output end of the first reducer 222 passes through the base plate 211 and is connected to a first driving gear 223. The first driven gear 224 is a gear ring structure and is provided at the lower part of the base plate 211. The first driving gear 223 meshes with the first driven gear 224. The base plate 211 is driven to rotate by the first motor 221 and the first reducer 222, thereby realizing that the horizontal rotation mechanism 220 drives the horizontal seat 210 to rotate in the horizontal direction. A first battery 225 is provided on the lower surface of the base 100 to provide power to the first motor 221.

[0033] In this embodiment, the first driving gear 223 has a module of 2 and 20 teeth; the first driven gear 224 has a module of 2 and 115 teeth. To further ensure the stability of the structure of this invention, please refer to the appendix to the specification. Figure 4 , 56, 8, 9, 10, 11, Vertical Rotation Stand 300, including Vertical Stand 310 and Vertical Rotation Mechanism 320; Vertical Stand 310 is used to house 3D Scanner 400 and is cantilevered between two support frames 213; Vertical Rotation Mechanism 320 drives Vertical Stand 310 to rotate in the vertical direction.

[0034] Specifically, the vertical seat 310 includes a seat body 311, a cantilever shaft 312, and a shaft seat 313; The base 311 has a box-like structure, and the 3D scanner 400 is housed in the base 311. The cantilever shaft 312 is provided on both sides of the base 311 to form a support point for the rotation of the base 311; The bearing seat 313 is set on the horizontal seat 210, specifically on the top of the support frame 213, and a cantilever shaft 312 with a bearing is installed inside it, forming two rotational support points of the vertical seat 310.

[0035] In this embodiment, the bearing selected is 628 GB276.

[0036] Specifically, the vertical rotation mechanism 320 includes a second motor 321, a second reducer 322, a second drive gear 323, a second driven gear 324, and a second battery 325; A second motor 321 is provided on one side of the support frame 213. A second reducer 322 is connected to the second motor 321. The output end of the second reducer 322 extends inward through the support frame 213 and is provided with a second drive gear 323. A second driven gear 324 is mounted on the cantilever shaft 312 in the top bearing 313 of the support frame 213. The second drive gear 323 meshes with the second driven gear 324, and the second motor 321 and the second reducer 322 drive the vertical seat 310 to rotate vertically on the horizontal seat 210. A second battery 325 is provided on the other side of the support frame 213 to provide power to the second motor 321; It also provides power to the 3D scanner 400.

[0037] In this embodiment, the second driving gear 323 has a module of 1 and 20 teeth; the second driven gear 324 has a module of 1 and 100 teeth. In this embodiment, the first motor 221, the first reducer 222, the second motor 321, and the second reducer 322 are all 5840-31ZY-2435, with a speed of 3 and a voltage of 24V. The first battery 225 and the second battery 325 are both 24V 3AH.

[0038] To optimize the structure of this invention, please refer to the appendix to the specification. Figure 12-15The support 500 includes a spherical tank support 510 and a head support 520; The head support seat 520 is installed on the head and is used for head section inspection support; The spherical tank support 510 is installed on the manhole flange of the spherical storage tank and is used for cross-sectional inspection support of the spherical storage tank.

[0039] For further optimization of the structure of this invention, please refer to the appendix to the specification. Figure 12 , 13 The spherical tank support base 510 includes a first support rod 511, a first telescopic support arm 512, a first adjusting screw 513, a first screw nut 514, a limiting block 515, a support foot 516, and a first adjusting wrench 517. The first support rod 511 is a rectangular tube, used to fix one end of the spherical tank support seat 510 to the lower surface of the base 100, and to rotate around the horizontal seat 210 in a central circular array. The first telescopic support arm 512 is a curved rod, with one end telescopically connected to the first support rod 511; The support foot 516 has a U-shaped structure and is connected to the other end of the first telescopic support arm 512. It is used to support the manhole flange and fix the base 100. The first adjusting screw 513 is a stepped threaded shaft, located at the lower part of the first telescopic support arm 512, and is used to adjust the extension or retraction of the first telescopic support arm 512. The first nut 514 is fixed at the lower part of the first support rod 511. One end of the first adjusting screw 513 is screwed to the first nut 514, and the first adjusting screw 513 passes through the first nut 514 and extends toward the rotation center of the horizontal seat 210. A limiting block 515 is located at the lower part of the first telescopic support arm 512 and is used to limit the first adjusting screw 513. The first adjusting wrench 517 is used to rotate the first adjusting screw 513 to adjust the position of the support foot 516 on the manhole flange.

[0040] To further optimize the structure of this invention, please refer to the appendix to the specification. Figure 14 , 15 The head support base 520 includes a second support rod 521, a second telescopic arm 522, a second adjusting screw 523, a second screw nut 524, a suction cup 526, and a second adjusting wrench 525; The second support rod 521 is a rectangular tube, used to fix one end of the head support seat 520 to the lower surface of the base 100, and to rotate around the horizontal seat 210 in a central circular array. The second telescopic arm 522 is a curved rod, one end of which is telescopically connected to the second support rod 521; The suction cup 526 is a circular disc-shaped adsorption accessory used to place the other end of the second telescopic arm 522 on the end cap and to fix the base 100. The second adjusting screw 523 is a stepped threaded shaft, located at the lower part of the second telescopic arm 522, and is used to adjust the extension or retraction of the second telescopic support arm 522. The second nut 524 is fixed to the lower part of the second support rod 521. One end of the second adjusting screw 523 is screwed to the second nut 524, and the second adjusting screw 523 passes through the second nut 524 and extends toward the rotation center of the horizontal seat 210. The other end of the second adjusting screw 523 abuts against the bent part of the second telescopic arm 522 for limiting. The second adjusting wrench 525 is used to rotate the second adjusting screw 523 to adjust the position of the second telescopic arm 522; The suction cup 526 is inserted into the other end of the second telescopic arm 522 and is detachably connected to the cotter pin via a pin.

[0041] As a standard technical option, the head and spherical tank cross-section detector also includes a controller. The controller remotely controls the first motor 221 and the second motor 321 to drive the horizontal rotating seat 200 to rotate horizontally and the vertical rotating seat 300 to rotate vertically; at the same time, it controls the three-dimensional scanner 400 to perform a 360-degree all-round scan without blind spots.

[0042] The working process of this embodiment: Includes the following steps: 1. Assemble the horizontal rotating base 200 and the vertical rotating base 300 on the base 100, house the 3D scanner 400 in the base body 311, and fix it in a limited position; 2. Assemble support base 500, wherein head support base 520 is used for head cross-section inspection, and spherical tank support base 510 is used for spherical tank cross-section inspection; 3. Transport the device into the head and spherical tank; 4. Assemble the support base 500 and level the horizontal rotating base 200, wherein the head support base 520 is used for head cross-section inspection, and the spherical tank support base 510 is used for spherical tank cross-section inspection; 5. Adjust the support base 500, wherein the head support base 520 adapts to different curvatures of the head by adjusting the angle of the suction cup 526, and the spherical tank support base 510 adapts to different manhole flanges of the spherical tank by adjusting the support foot 516. 6. The controller remotely controls the first motor 221 and the second motor 321 to perform a 360-degree all-round scanning without blind spots; 7. After scanning, remove the 400 memory card from the 3D scanner and use CloudCompare and FreeCAD software to read the PCD format data to form a 3D model of the tank. Export the model as a STEP file and then use SolidWorks software to compare the model with the tank design values. By comparing the measured shape with the standard shape, determine the degree to which the standard requirements are met.

[0043] Features of this embodiment: 1. Capable of inspecting the overall cross-sectional shape of end caps and spherical storage tanks to ensure the inherent safety of pressure-bearing equipment; 2. High detection efficiency; 3. High detection accuracy; 4. The test results are not affected by the subjective factors of the operator.

[0044] 5. The test data can be stored and accessed by relevant personnel at any time.

[0045] It is worth noting that all contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of the first motor 221, the second motor 321 and the 3D scanner 400 are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cross-sectional inspection instrument for end caps and spherical storage tanks, characterized by: include: Base (100); A horizontal rotating seat (200) is disposed on the upper part of the base (100) and is used for rotating in the horizontal direction; A vertical rotating seat (300) is mounted on the horizontal rotating seat (200) for rotating in the vertical direction; A 3D scanner (400), mounted on the vertical rotating base (300), is used for inspecting the cross-sections of end caps and spherical storage tanks; and A support base (500) is disposed at the lower part of the base (100) to support the base (100) and maintain the stability of the 3D scanner (400); The vertical rotating base (300) rotates in the horizontal direction while the horizontal rotating base (200) rotates in the vertical direction, thereby enabling the 3D scanner (400) to perform 360-degree all-round scanning without blind spots.

2. The head and spherical tank cross-section testing instrument according to claim 1, characterized in that: The horizontal rotating seat (200) includes a horizontal seat (210) and a horizontal rotating mechanism (220); The horizontal seat (210) is rotatably connected to the base (100), and the horizontal rotation mechanism (220) drives the horizontal seat (210) to rotate in the horizontal direction.

3. The head and spherical tank cross-section testing instrument according to claim 2, characterized in that: The horizontal seat (210) includes: A base plate (211) is disposed on one end of the base (100); A connecting seat (212) is provided, the upper end of which is connected to the base plate (211), and the lower end is connected to the base (100); the connecting seat (212) is a hollow structure and is fixed to the base (100); bearings are provided at both ends of the connecting seat (212), and a horizontal rotating shaft is assembled between the bearings to form the rotation center of the horizontal seat (210), and is limited by end caps and bolt assemblies; the upper part of the horizontal rotating shaft is provided with a shoulder to support the base plate (211), and the base plate (211) can rotate around the rotation center of the horizontal seat (210); and The support frame (213) is symmetrically arranged on the upper surface of the base plate (211) with the rotation center of the horizontal seat (210) as the center, forming a symmetrical support wing plate, which is used to assemble the vertical rotating seat (300) so that the vertical rotating seat (300) can rotate vertically between the two support frames (213).

4. The head and spherical tank cross-section inspection instrument according to claim 3, characterized in that: The horizontal rotation mechanism (220) includes a first motor (221), a first reducer (222), a first drive gear (223), a first driven gear (224), and a first battery (225). The first motor (221) is provided on the lower surface of the other end of the base (100). The first reducer (222) is connected to the first motor (221). The output end of the first reducer (222) passes through the base plate (211) and is connected to the first driving gear (223). The first driven gear (224) is provided at the lower part of the base plate (211). The first driving gear (223) meshes with the first driven gear (224). The base plate (211) is driven to rotate by the first motor (221) and the first reducer (222), so that the horizontal rotation mechanism (220) drives the horizontal seat (210) to rotate in the horizontal direction. The first battery (225) is disposed on the lower surface of the base (100) for providing power to the first motor (221).

5. The head and spherical tank cross-section testing instrument according to claim 4, characterized in that: The vertical rotating base (300) includes a vertical base (310) and a vertical rotating mechanism (320); The vertical mount (310) is used to house the three-dimensional scanner (400) and is cantilevered between the two support frames (213); The vertical rotation mechanism (320) drives the vertical seat (310) to rotate in the vertical direction.

6. The head and spherical tank cross-section testing instrument according to claim 5, characterized in that: The vertical seat (310) includes: The base (311) is a box-type structure, and the 3D scanner (400) is housed in the base (311); A cantilever shaft (312) is disposed on both sides of the seat (311) to form a support point for the rotation of the seat (311); and A bearing seat (313) is provided on the top of the support frame (213) of the horizontal seat (210), and a cantilever shaft (312) with a bearing is installed inside it, forming two rotational support points of the vertical seat (310).

7. The head and spherical tank cross-section inspection instrument according to claim 6, characterized in that: The vertical rotation mechanism (320) includes a second motor (321), a second reducer (322), a second drive gear (323), a second driven gear (324), and a second battery (325). A second motor (321) is provided on one side of the support frame (213). A second reducer (322) is connected to the second motor (321). The output end of the second reducer (322) extends inward through the support frame (213) and is provided with a second driving gear (323). A second driven gear (324) is mounted on the cantilever shaft (312) in the bearing seat (313) at the top of the support frame (213). The second driving gear (323) meshes with the second driven gear (324). The second motor (321) and the second reducer (322) drive the vertical seat (310) to rotate vertically on the horizontal seat (210). The second battery (325) is provided on the other side of the support frame (213) to provide power to the second motor (321).

8. The head and spherical tank cross-section testing instrument according to claim 1, characterized in that: The support base (500) includes a spherical tank support base (510) and a head support base (520). The head support (520) is installed on the head and is used for head section detection support; The spherical tank support (510) is installed on the manhole flange of the spherical storage tank and is used for cross-sectional inspection support of the spherical storage tank.

9. The head and spherical tank cross-section testing instrument according to claim 8, characterized in that: The spherical tank support (510) includes: The first support rod (511) is a rectangular tube used to fix one end of the spherical tank support seat (510) on the lower surface of the base (100) and to rotate around the horizontal seat (210) in a circular array. The first telescopic support arm (512) is a curved rod, one end of which is telescopically connected to the first support rod (511); The support foot (516) is a U-shaped structure and is connected to the other end of the first telescopic support arm (512) for supporting the manhole flange and fixing the base (100). The first adjusting screw (513) is a stepped threaded shaft, which is located at the lower part of the first telescopic support arm (512) and is used to adjust the extension or retraction of the first telescopic support arm (512). The first nut (514) is fixed to the lower part of the first support rod (511). One end of the first adjusting screw (513) is screwed to the first nut (514), and the first adjusting screw (513) passes through the first nut (514) and extends toward the rotation center of the horizontal seat (210). A limiting block (515) is disposed at the lower part of the first telescopic support arm (512) to limit the first adjusting screw (513); and The first adjusting wrench (517) is used to rotate the first adjusting screw (513) to adjust the position of the support foot (516) on the manhole flange; The head support (520) includes: The second support rod (521) is a rectangular tube used to fix one end of the end cap support seat (520) on the lower surface of the base (100) and rotate around the horizontal seat (210) in a circular array. The second telescopic arm (522) is a curved rod, one end of which is telescopically connected to the second support rod (521); A suction cup (526) is used to place the other end of the second telescopic arm (522) on the end cap and to fix the base (100); The second adjusting screw (523) is a stepped threaded shaft, which is located at the lower part of the second telescopic arm (522) and is used to adjust the extension or retraction of the second telescopic support arm 522. The second nut (524) is fixed to the lower part of the second support rod (521). One end of the second adjusting screw (523) is screwed to the second nut (524), and the second adjusting screw (523) passes through the second nut (524) and extends towards the rotation center of the horizontal seat (210). The other end of the second adjusting screw (523) abuts against the curved part of the second telescopic arm (522) for limiting its position. The second adjusting wrench (525) is used to rotate the second adjusting screw (523) to adjust the position of the second telescopic arm (522); The suction cup (526) is inserted into the other end of the second telescopic arm (522) and is detachably connected to the cotter pin via a pin.

10. The head and spherical tank cross-section inspection instrument according to claim 7, characterized in that: It also includes a controller that remotely controls the first motor (221) and the second motor (321) to drive the horizontal rotating seat (200) to rotate in the horizontal direction and the vertical rotating seat (300) to rotate in the vertical direction; at the same time, it controls the three-dimensional scanner (400) to perform a 360-degree all-round scanning without blind spots.

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