Obstacle-avoidance magnetic wheel set for internal welding seam detection mobile platform

Abstract

The utility model relates to an obstacle-avoidance magnetic wheel set for an internal welding seam detection mobile platform, which comprises a first mounting structure, a second mounting structure, a main wheel, an auxiliary wheel assembly, a limiting piece and a locking piece, one end of the second mounting structure is connected with the first mounting structure, and the other end is provided with a locking structure; a flange is formed between the first mounting structure and the second mounting structure; the main wheel is arranged at the end, close to the flange, of the second mounting structure. The auxiliary wheel assembly is arranged on the second mounting structure, and the auxiliary wheel assembly and the main wheel are arranged at intervals; the auxiliary wheel assembly comprises a plurality of auxiliary wheels which are arranged at intervals; at least one limiting piece is arranged between the main wheel and the auxiliary wheel assembly, and at least one limiting piece is arranged between every two adjacent auxiliary wheels. The locking piece is arranged on the locking structure and is detachably connected with the locking structure; a gap is formed between the main wheel and the auxiliary wheel assembly. And a gap is also formed between two adjacent auxiliary wheels, so that the situation that the wheel set cannot rotate or is directly separated from the mobile platform due to clamping is avoided.

Description

Technical Field

[0001] This application relates to the field of welding inspection technology, specifically to an obstacle-avoiding magnetic wheel assembly for a mobile platform for internal weld inspection. Background Technology

[0002] Currently, the construction of large bridges, oil pipelines, pressure vessels, and other structures with internal spaces requires a significant amount of internal welding work. The number and total length of these internal welds can approach or even exceed those of external welds. Furthermore, welders often face difficulties accessing the structure's interior and enduring prolonged exposure to high temperatures, high dust levels, and poor ventilation. Therefore, increasingly, automated welding platforms are being used for internal welding operations. Non-destructive testing of internal welds is a crucial step; however, this testing also faces challenges such as poor personnel accessibility and harsh working conditions, necessitating the replacement of manual labor with automated weld inspection platforms.

[0003] Welding processes include MIG welding and laser welding. MIG welding, also known as consumable electrode inert gas welding, uses a consumable electrode and an externally supplied gas as the arc medium to protect the molten metal droplets, weld pool, and high-temperature metal in the weld zone. During the welding process, the welder uses a welding torch to continuously supply consumable heating electrodes and shielding gas. The arc forms at the end of the consumable electrode and is consumed along with the workpiece to form a molten pool. The molten pool is protected by the shielding gas, which is delivered through a gas nozzle on the arc.

[0004] Laser welding uses an optical system to focus a laser beam into a very small area, creating a highly concentrated heat source zone at the weld site in a very short time, thereby melting the workpiece and forming a strong weld point and weld seam.

[0005] During welding, the molten metal in the weld pool vibrates due to the contraction of the keyhole, causing a large number of molten metal droplets to splash out. These droplets solidify upon cooling in the air, forming spatter particles, or simply spatter. These spatter particles landing on the workpieces on both sides of the weld can pose a hazard to subsequent weld inspection operations on the moving platform. The wheels of the moving platform may detach from the workpiece due to the impact of the spatter, or even become completely jammed, significantly reducing the efficiency and accuracy of weld inspection. In summary, current technology has failed to effectively address the impact of spatter particles on the wheel assembly of the weld inspection moving platform. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the purpose of this application is to provide an obstacle-avoiding magnetic wheel set for a mobile platform for internal weld inspection, so as to solve the technical problem that the wheels of the existing mobile platform are stuck by flying metal particles and cannot rotate or directly detach from the mobile platform.

[0007] The obstacle-avoiding magnetic wheel set for an internal weld inspection mobile platform described in this application includes a first mounting structure connected to the internal weld inspection mobile platform, and also includes a second mounting structure, a main wheel, a secondary wheel assembly, a limiting component, and a locking component.

[0008] One end of the second mounting structure is connected to the first mounting structure, and the other end is provided with a locking structure; a flange is formed at the connection between the first mounting structure and the second mounting structure;

[0009] The main wheel is disposed on one end of the second mounting structure near the flange;

[0010] The auxiliary wheel assembly is disposed on the second mounting structure and spaced apart from the main wheel; the auxiliary wheel assembly includes a plurality of auxiliary wheels spaced apart; at least one limiting member is disposed between the main wheel and the auxiliary wheel assembly, and at least one limiting member is disposed between two adjacent auxiliary wheels;

[0011] The locking element is disposed on the locking structure and is detachably connected to the locking structure.

[0012] Preferably, the outer periphery of the auxiliary wheel has a plurality of notches, and the plurality of notches are arranged in a circumferential array.

[0013] Preferably, the auxiliary wheel assembly includes a first auxiliary wheel, a second auxiliary wheel, a third auxiliary wheel, and a fourth auxiliary wheel; a limiting member is provided between the main wheel and the first auxiliary wheel, two limiting members are provided between the first auxiliary wheel and the second auxiliary wheel, three limiting members are provided between the second auxiliary wheel and the third auxiliary wheel, and four limiting members are provided between the third auxiliary wheel and the fourth auxiliary wheel.

[0014] Preferably, the auxiliary wheel assembly includes a first auxiliary wheel, a second auxiliary wheel, a third auxiliary wheel, a fourth auxiliary wheel, a fifth auxiliary wheel, a sixth auxiliary wheel, and a seventh auxiliary wheel; a limiting member is provided between the main wheel and the first auxiliary wheel, between the first auxiliary wheel and the second auxiliary wheel, between the second auxiliary wheel and the third auxiliary wheel, between the third auxiliary wheel and the fourth auxiliary wheel, between the fourth auxiliary wheel and the fifth auxiliary wheel, between the fifth auxiliary wheel and the sixth auxiliary wheel, and between the sixth auxiliary wheel and the seventh auxiliary wheel.

[0015] Preferably, the second mounting structure is in the shape of a regular hexagonal prism, the cross-section of the second mounting structure is a regular hexagon, the diameter W of the inscribed circle of the cross-section of the second mounting structure is 1.2 to 3 cm, and the length of the second mounting structure is 6 to 18 cm.

[0016] Preferably, the diameter of the main wheel is 5 to 12 cm, and the thickness of the main wheel is 2 to 6 cm.

[0017] Preferably, the diameter of the auxiliary wheel is 5 to 12 cm, and the thickness of the auxiliary wheel is 0.25 to 1.5 cm.

[0018] Preferably, the diameter of the limiting member is 3 to 5.5 cm, and the thickness of the limiting member is 0.15 to 1 cm.

[0019] Preferably, the outer edge of the main wheel has a first chamfer, the first chamfer extending axially along the main wheel by a dimension d1 of 0.4 to 1.2 cm; the angle between the inclined surface of the first chamfer and the radial plane of the main wheel is 45°; the outer edge of the auxiliary wheel has a second chamfer, the second chamfer extending axially along the auxiliary wheel by a dimension d2 of 0.05 to 0.3 cm.

[0020] Preferably, the locking element is threadedly connected to the locking section.

[0021] The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform described in this application has the following advantages:

[0022] By setting the main wheel and auxiliary wheel assemblies, with the main wheel and auxiliary wheel assemblies spaced apart, and adjacent auxiliary wheels in the auxiliary wheel assembly spaced apart, a gap is formed between the main wheel and auxiliary wheel assemblies; a gap is also formed between adjacent auxiliary wheels. When there are splashed metal particles, the splashed metal particles pass through the gaps, avoiding jamming of the obstacle-avoiding magnetic wheel assembly for the internal weld inspection mobile platform described in this application, and preventing the wheel assembly from being unable to rotate or directly detaching from the mobile platform due to being jammed by splashed metal particles. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the obstacle-avoiding magnetic wheel assembly of a mobile platform for internal weld inspection as described in this application;

[0024] Figure 2 This is a schematic diagram of another embodiment of the obstacle-avoiding magnetic wheel set for an internal weld inspection mobile platform described in this application;

[0025] Figure 3 These are schematic diagrams of the first mounting structure and the second mounting structure;

[0026] Figure 4 This is a schematic diagram of the first auxiliary wheel.

[0027] Explanation of reference numerals in the attached drawings: 1-First mounting structure, 2-Second mounting structure, 3-Main wheel, 4-Sub-wheel assembly, 41-First sub-wheel, 42-Second sub-wheel, 43-Third sub-wheel, 44-Fourth sub-wheel, 45-Fifth sub-wheel, 46-Sixth sub-wheel, 47-Seventh sub-wheel, 5-Limiting component, 6-Locking component, 7-Locking structure, 8-Flange. Detailed Implementation

[0028] like Figures 1-4 As shown, an obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to this application includes a first mounting structure 1, which is connected to the internal weld inspection mobile platform, and also includes a second mounting structure 2, a main wheel 3, a secondary wheel assembly 4, a limiting member 5, and a locking member 6.

[0029] One end of the second mounting structure 2 is connected to the first mounting structure 1, and the other end is provided with a locking structure 7; a flange 8 is formed at the connection between the first mounting structure 1 and the second mounting structure 2.

[0030] The main wheel 3 is located on the second mounting structure 2 at one end near the flange 8;

[0031] The auxiliary wheel assembly 4 is disposed on the second mounting structure 2 and is spaced apart from the main wheel 3; the auxiliary wheel assembly 4 includes a number of auxiliary wheels spaced apart; at least one limiting member 5 is disposed between the main wheel 3 and the auxiliary wheel assembly 4, and at least one limiting member 5 is disposed between two adjacent auxiliary wheels;

[0032] The locking element 6 is located on the locking structure 7 and is detachably connected to the locking structure 7.

[0033] Specifically, the first mounting structure 1 of the obstacle-avoiding magnetic wheel assembly for the internal weld inspection mobile platform described in this application is used to connect with the inspection mobile platform; the first mounting structure 1 and the second mounting structure 2 can be integrally formed or separately connected. In one embodiment of this application, the first mounting structure 1 and the second mounting structure 2 are integrally formed, that is, the first mounting structure 1 and the second mounting structure 2 are two parts of the shaft. Since the main wheel 3 and the auxiliary wheel assembly 4 are set on the second mounting structure 2, in order to prevent the main wheel 3 and the auxiliary wheel assembly 4 from moving onto the first mounting structure 1, a flange 8 is formed at the connection between the first mounting structure 1 and the second mounting structure 2. The function of the flange 8 is to separate the first mounting structure 1 and the second mounting structure 2 and prevent the main wheel 3 and the auxiliary wheel assembly 4 from sliding onto the first mounting structure 1.

[0034] More specifically, the main wheel 3 and the auxiliary wheel assembly 4 are spaced apart, and at least one limiting block is provided between the main wheel 3 and the auxiliary wheel assembly 4. The auxiliary wheel assembly 4 includes several auxiliary wheels, and adjacent auxiliary wheels are spaced apart, with at least one limiting block provided between adjacent auxiliary wheels. The function of the limiting block is to separate the main wheel 3 and the auxiliary wheel assembly 4 according to the set interval, and to separate adjacent auxiliary wheels, so that gaps are formed between the main wheel 3 and the auxiliary wheel assembly 4 and between adjacent auxiliary wheels, to prevent splashed metal particles from jamming the obstacle-avoiding magnetic wheel assembly, thus enabling the obstacle-avoiding magnetic wheel assembly for the internal weld inspection mobile platform described in this application to achieve the "obstacle avoidance" function.

[0035] More specifically, the above design can prevent splashed metal particles from getting stuck in the obstacle-avoiding magnetic wheel assembly. Based on the above, the main wheel 3 can be made of magnetic material, and in one embodiment of this application, a magnet can be used; similarly, several auxiliary wheels in the auxiliary wheel assembly 4 can also be made of magnets. By using magnetic material, when splashed metal particles pass through the gap, they are attracted by the magnet and directly adsorbed onto the main wheel 3 or the auxiliary wheels. This allows the obstacle-avoiding magnetic wheel assembly for the internal weld inspection mobile platform described in this application to not only achieve the "obstacle avoidance" function, but also to collect splashed metal particles.

[0036] Furthermore, such as Figure 4 As shown, the outer circumference of the secondary wheel has several notches, and these notches are arranged in a circular array.

[0037] Specifically, since not all the splashed metal particles can pass directly through the gap, some splashed metal particles come into contact with the edge of the auxiliary wheel. Both the splashed metal particles and the edge of the auxiliary wheel have high hardness, and their collision can easily cause wear on the auxiliary wheel. To prevent the auxiliary wheel from wearing out too quickly, several notches are formed on the outer circumference of the auxiliary wheel, and these notches are arranged in a circumferential array.

[0038] For example, the outer periphery of the auxiliary wheel has nine notches, and the number of notches can be set according to actual needs.

[0039] In one embodiment of this application, when installing the secondary wheel assembly 4, the notches corresponding to two adjacent secondary wheels can be staggered. The specific stagger angle can be adjusted according to actual needs. In one embodiment of this application, the stagger angle can be 60°. This setting enables an additional rim gap to be formed between two adjacent secondary wheels. Splashed metal particles can be guided into the gap that matches their own size by the rim gap, thereby avoiding excessive collision with the edge of the secondary wheel.

[0040] Furthermore, in order to address the spatter issues that arise in both MIG welding and laser welding, this application includes the following embodiments: Example

[0041] Through actual observation, the spattered metal particles generated by the MIG welding process exhibit the following characteristics: the farther away from the weld, the smaller the size of the spattered metal particles; and the larger the maximum size of the spattered particles is at positions further away from the weld.

[0042] Therefore, in one embodiment of this application, such as Figure 1As shown, the auxiliary wheel assembly 4 includes a first auxiliary wheel 41, a second auxiliary wheel 42, a third auxiliary wheel 43, and a fourth auxiliary wheel 44; a limiting member 5 is provided between the main wheel 3 and the first auxiliary wheel 41, two limiting members 5 are provided between the first auxiliary wheel 41 and the second auxiliary wheel 42, three limiting members 5 are provided between the second auxiliary wheel 42 and the third auxiliary wheel 43, and four limiting members 5 are provided between the third auxiliary wheel 43 and the fourth auxiliary wheel 44.

[0043] It should be noted that the specific number of auxiliary wheels in the auxiliary wheel assembly 4 can be set according to actual needs. At the same time, the distance between the main wheel 3 and the auxiliary wheel assembly 4, and the distance between two adjacent auxiliary wheels (in this embodiment, the distance between the first auxiliary wheel 41 and the second auxiliary wheel 42, the distance between the second auxiliary wheel 42 and the third auxiliary wheel 43, and the distance between the third auxiliary wheel 43 and the fourth auxiliary wheel 44) can also be adjusted according to actual needs by the number of limiting members 5 placed. Example

[0044] Through actual observation, the spattered metal particles produced by laser welding process have the following characteristics: the size of the spattered metal particles is smaller than that of the spattered metal particles produced by MIG welding, and the distribution of the spattered metal particles is more uniform than that of the spattered metal particles produced by MIG welding.

[0045] Therefore, in one embodiment of this application, such as Figure 2 As shown, the auxiliary wheel assembly 4 includes a first auxiliary wheel 41, a second auxiliary wheel 42, a third auxiliary wheel 43, a fourth auxiliary wheel 44, a fifth auxiliary wheel 45, a sixth auxiliary wheel 46, and a seventh auxiliary wheel 47; a limiting member 5 is provided between the main wheel 3 and the first auxiliary wheel 41, between the first auxiliary wheel 41 and the second auxiliary wheel 42, between the second auxiliary wheel 42 and the third auxiliary wheel 43, between the third auxiliary wheel 43 and the fourth auxiliary wheel 44, between the fourth auxiliary wheel 44 and the fifth auxiliary wheel 45, between the fifth auxiliary wheel 45 and the sixth auxiliary wheel 46, and between the sixth auxiliary wheel 46 and the seventh auxiliary wheel 47.

[0046] It should be noted that the specific number of auxiliary wheels in the auxiliary wheel assembly 4 can be set according to actual needs. At the same time, the distance between the main wheel 3 and the auxiliary wheel assembly 4, and the distance between two adjacent auxiliary wheels (in this embodiment, this refers to the distance between the first auxiliary wheel 41 and the second auxiliary wheel 42, the distance between the second auxiliary wheel 42 and the third auxiliary wheel 43, the distance between the third auxiliary wheel 43 and the fourth auxiliary wheel 44, the distance between the fourth auxiliary wheel 44 and the fifth auxiliary wheel 45, the distance between the fifth auxiliary wheel 45 and the sixth auxiliary wheel 46, and the distance between the sixth auxiliary wheel 46 and the seventh auxiliary wheel 47) can also be adjusted according to actual needs by the number of limiting members 5 placed.

[0047] Furthermore, such as Figure 3As shown, the second mounting structure 2 is in the shape of a regular hexagonal prism, the cross-section of the second mounting structure 2 is a regular hexagon, the diameter W of the inscribed circle of the cross-section of the second mounting structure is 1.2 to 3 cm, and the length of the second mounting structure 2 is 6 to 18 cm.

[0048] Furthermore, the diameter of the main wheel 3 is 5-12cm, and the thickness of the main wheel 3 is 2-6cm.

[0049] Furthermore, the diameter of the auxiliary wheel is 5 to 12 cm, and the thickness of the auxiliary wheel is 0.25 to 1.5 cm.

[0050] Furthermore, the diameter of the limiting member 5 is 3 to 5.5 cm, and the thickness of the limiting member 5 is 0.15 to 1 cm.

[0051] Furthermore, to facilitate the smoother entry of splashed metal particles into the gap from the edge of the main wheel 3 or the auxiliary wheel, the outer edge of the main wheel 3 is formed with a first chamfer, the dimension d1 of which extends axially along the main wheel 3 is 0.4 to 1.2 cm; the angle between the inclined surface of the first chamfer and the radial plane of the main wheel 3 is 45°; the outer edge of the auxiliary wheel is formed with a second chamfer, the dimension d2 of which extends axially along the auxiliary wheel is 0.05 to 0.3 cm.

[0052] By setting the first chamfer and the second chamfer, when the splashed metal particles come into contact with the edge of the main wheel 3 or the edge of the secondary wheel, they can enter the gap along the first chamfer or the second chamfer.

[0053] Furthermore, the locking element 6 is threadedly connected to the locking section.

[0054] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application.

[0055] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this application.

Claims

1. An obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform, comprising a first mounting structure (1) connected to the internal weld inspection mobile platform, characterized in that, It also includes a second mounting structure (2), a main wheel (3), a secondary wheel assembly (4), a limiting member (5), and a locking member (6); One end of the second mounting structure (2) is connected to the first mounting structure (1), and the other end is provided with a locking structure (7); a flange (8) is formed at the connection between the first mounting structure (1) and the second mounting structure (2); The main wheel (3) is disposed on the second mounting structure (2) at one end near the flange (8); The auxiliary wheel assembly (4) is disposed on the second mounting structure (2) and spaced apart from the main wheel (3); the auxiliary wheel assembly (4) includes a plurality of auxiliary wheels spaced apart; at least one limiting member (5) is disposed between the main wheel (3) and the auxiliary wheel assembly (4), and at least one limiting member (5) is disposed between two adjacent auxiliary wheels. The locking member (6) is disposed on the locking structure (7) and is detachably connected to the locking structure (7).

2. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 1, characterized in that, The outer periphery of the auxiliary wheel has several notches, and the notches are arranged in a circular array.

3. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 1 or 2, characterized in that, The auxiliary wheel assembly (4) includes a first auxiliary wheel (41), a second auxiliary wheel (42), a third auxiliary wheel (43), and a fourth auxiliary wheel (44); a limiting member (5) is provided between the main wheel (3) and the first auxiliary wheel (41), two limiting members (5) are provided between the first auxiliary wheel (41) and the second auxiliary wheel (42), three limiting members (5) are provided between the second auxiliary wheel (42) and the third auxiliary wheel (43), and four limiting members (5) are provided between the third auxiliary wheel (43) and the fourth auxiliary wheel (44).

4. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 1 or 2, characterized in that, The auxiliary wheel assembly (4) includes a first auxiliary wheel (41), a second auxiliary wheel (42), a third auxiliary wheel (43), a fourth auxiliary wheel (44), a fifth auxiliary wheel (45), a sixth auxiliary wheel (46), and a seventh auxiliary wheel (47); a limiting member (5) is provided between the main wheel (3) and the first auxiliary wheel (41), between the first auxiliary wheel (41) and the second auxiliary wheel (42), between the second auxiliary wheel (42) and the third auxiliary wheel (43), between the third auxiliary wheel (43) and the fourth auxiliary wheel (44), between the fourth auxiliary wheel (44) and the fifth auxiliary wheel (45), between the fifth auxiliary wheel (45) and the sixth auxiliary wheel (46), and between the sixth auxiliary wheel (46) and the seventh auxiliary wheel (47).

5. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 1, characterized in that, The second mounting structure (2) is in the shape of a regular hexagonal prism. The cross section of the second mounting structure (2) is a regular hexagon. The diameter W of the inscribed circle of the cross section of the second mounting structure is 1.2 to 3 cm. The length of the second mounting structure (2) is 6 to 18 cm.

6. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 1, characterized in that, The diameter of the main wheel (3) is 5 to 12 cm, and the thickness of the main wheel (3) is 2 to 6 cm.

7. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 1, characterized in that, The diameter of the auxiliary wheel is 5 to 12 cm, and the thickness of the auxiliary wheel is 0.25 to 1.5 cm.

8. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 7, characterized in that, The diameter of the limiting member (5) is 3 to 5.5 cm, and the thickness of the limiting member (5) is 0.15 to 1 cm.

9. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 8, characterized in that, The outer edge of the main wheel (3) has a first chamfer, the first chamfer extending along the axial direction of the main wheel (3) by a dimension d1 of 0.4 to 1.2 cm; the angle between the inclined surface of the first chamfer and the radial plane of the main wheel (3) is 45°; the outer edge of the auxiliary wheel has a second chamfer, the second chamfer extending along the axial direction of the auxiliary wheel by a dimension d2 of 0.05 to 0.3 cm.

10. The obstacle-avoiding magnetic wheel assembly for an internal weld inspection mobile platform according to claim 1, characterized in that, The locking element (6) is threadedly connected to the locking section.

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