Support roller stand for can body welding

Abstract

The application discloses a supporting roller frame for tank welding and relates to the technical field of welding auxiliary equipment. The supporting roller frame comprises a bearing unit and an adjusting unit. The bearing unit comprises a base and multiple groups of contact structures arranged on the base in sequence. The contact structure comprises two oppositely arranged supporting assemblies. The supporting assembly comprises a supporting seat, multiple bearing seats connected to the supporting seat, a bearing roller corresponding rotatingly arranged on the bearing seat and a bearing power element drivingly connected to the bearing roller. The supporting seat is provided with an adjusting cavity communicating with the outside. The bearing seat is slidingly connected to the inner wall of the adjusting cavity in the vertical direction. The bearing power element is used for driving the bearing roller to rotate with the first direction as the rotating shaft. The adjusting unit is arranged in the adjusting cavity. The adjusting unit comprises an extrusion block slidingly arranged on the inner wall of the adjusting cavity and a displacement structure drivingly connected to the extrusion block. The extrusion block is provided with an extrusion surface corresponding to the bearing seat. The displacement structure is used for driving the extrusion block to move in the second direction. The application improves the applicability of the device.

Description

Technical Field

[0001] This invention relates to the field of welding auxiliary equipment technology, specifically to a support roller frame for tank welding. Background Technology

[0002] Support roller frames for tank welding are core process equipment in the production lines for circumferential seam welding of pressure vessels, wind turbine towers, prefabricated pipelines, and storage tanks. They typically consist of a set of active roller frames and a set of passive roller frames, positioned at the bottom of both ends of the tank. Utilizing the friction between the tank's own weight and the rubber-coated or steel rollers, a motor-driven reducer rotates the active rollers, causing the tank to rotate at a uniform speed. This, combined with an external welding manipulator, enables automated circumferential seam welding.

[0003] Most commercially available support roller frames use a fixed roller position design, meaning each set of rollers is fixedly installed in a predetermined position on the base, making displacement adjustment impossible. This structure means that each roller frame can only accommodate a single specific diameter tank. If welding is required with a tank of a different diameter, the contact angle between the roller and the tank surface will deviate significantly from the ideal range. This can lead to insufficient friction and drive slippage, or even the rollers failing to simultaneously contact and support the outer wall of the tank, rendering the equipment unusable. This results in poor applicability of the device. Summary of the Invention

[0004] The purpose of this invention is to provide a support roller frame for tank welding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a support roller frame for tank welding, comprising:

[0006] The receiving unit includes a base and multiple sets of contact structures sequentially arranged on the base along a first direction. Each contact structure includes two support components arranged opposite each other along a second direction. Each support component includes a support base, multiple receiving seats connected to the support base, receiving rollers rotatably mounted on the receiving seats, and a receiving power component connected to the receiving rollers. The support base has an adjustment cavity communicating with the outside. The receiving seats are slidably connected to the inner wall of the adjustment cavity along a vertical direction. The receiving power component drives the receiving rollers to rotate about the first direction as a rotation axis.

[0007] An adjustment unit is disposed within the adjustment cavity. The adjustment unit includes a pressing block slidably disposed on the inner wall of the adjustment cavity and a shifting structure connected to the pressing block. The pressing block has pressing surfaces that abut against the receiving seat one by one. The shifting structure is used to drive the pressing block to move along the second direction.

[0008] In one possible implementation, a measurement unit is provided between two adjacent sets of contact structures, the measurement unit comprising two acquisition structures disposed opposite each other on both sides of the base along the second direction;

[0009] The acquisition structure includes:

[0010] A tray is rotatably connected to the receiving seat, and the tray rotates about the first direction as its axis of rotation.

[0011] A measuring power component is connected to the pallet and is used to drive the pallet to rotate;

[0012] Multiple collection capsules are arranged sequentially along the extension direction of the tray;

[0013] A pneumatic component, connected to the collection capsule, and used to inflate or deflat the collection capsule; and

[0014] Multiple monitoring components are provided, each corresponding to a collection capsule, and are used to monitor the air pressure and gas flow rate of the corresponding collection capsule.

[0015] In one possible implementation, the pallet includes an active support rotatably connected to the receiving seat, a passive support rotatably connected to the active support, and a spring-loaded member installed between the active support and the passive support. The active support is connected to the measuring power member, the passive support is rotated about the first direction, and the spring-loaded member has a preload force that causes the passive support to rotate upward.

[0016] In one possible implementation, the measurement unit further includes a stable structure that corresponds one-to-one with the acquisition structure;

[0017] The stabilizing structure includes a stabilizing bracket rotatably connected to the base and a stabilizing power component pulsatingly connected to the stabilizing bracket. The stabilizing power component is used to drive the stabilizing components to rotate about the second direction as the rotation axis.

[0018] In one possible implementation, the stabilizing structure further includes positioning posts fixed to the stabilizing bracket, each positioning post corresponding to a passive support, and the bottom wall of the passive support having a positioning groove adapted to be inserted into the positioning post.

[0019] In one possible implementation, the collection bag is equipped with a fall-prevention roller, which is slidably mounted on the passive support. The fall-prevention roller moves radially along the passive support. The passive support has a groove for the fall-prevention roller to slide in. An elastic member is fixed between the inner wall of the groove and the fall-prevention roller. The elastic member has a preload force that causes the fall-prevention roller to move upward. A limiting structure is provided in the groove and is driven to the fall-prevention roller. The limiting structure is used to fix the fall-prevention roller and the inner wall of the groove together.

[0020] In one possible implementation, the anti-fall roller includes a lower section slidably disposed in the groove and a pressure section hinged to the lower section, the pressure section rotating about the first direction as a rotation axis.

[0021] In one possible implementation, a fluid bladder is provided on the outer periphery of the pressure section, and the fluid bladder contains a viscous agent;

[0022] The pressure section has multiple receiving slots, and each receiving slot has a piercing unit. The piercing unit includes a needle that slides in the receiving slot and an ejector connected to the needle. The ejector is used to drive the needle out of the receiving slot and pierce the fluid sac.

[0023] In one possible implementation, the outer periphery of the collection capsule is provided with a wear-resistant layer.

[0024] In one possible implementation, the extrusion block is recessed inward at the extrusion surface to form a control cavity, and the adjustment unit further includes a control block slidably disposed in the control cavity and a control component drively connected to the control block, the control component being used to drive the control block to move.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a receiving seat that can slide vertically, and an extrusion block and a shifting structure that drive the receiving seat to rise and fall synchronously, the height position of the receiving roller is adjusted. When changing tanks of different diameters, there is no need to change the equipment; the adjustment can be quickly completed by simply controlling the movement of the shifting structure. This allows one piece of equipment to adapt to tanks of various diameters, greatly improving the versatility of the equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the support roller frame for tank welding according to the present invention;

[0027] Figure 2 This is a partial cross-sectional view of the present invention to illustrate the method of adjusting the position of the receiving roller;

[0028] Figure 3 This is a partial cross-sectional view illustrating the method of supporting the pallet in this invention;

[0029] Figure 4 This is a partial cross-sectional view illustrating the fall protection method of the present invention.

[0030] In the diagram: 10. Receiving unit; 101. Base; 102. Support seat; 1021. Adjustment cavity; 103. Receiving seat; 1031. Inclined surface; 104. Receiving roller;

[0031] 20. Adjustment unit; 201. Extrusion block; 2011. Extrusion surface; 2012. Control cavity; 202. Displacement structure; 203. Control block;

[0032] 30. Measuring unit; 301. Support plate; 3011. Active support; 3012. Passive support; 3013. Positioning slot; 3014. Groove; 302. Measuring power component; 303. Data collection bag; 304. Stabilizing bracket; 305. Positioning column;

[0033] 40. Anti-fall roller; 401. Sinking section; 4011. Collection trough; 402. Pressure-bearing section; 4021. Fluid bladder;

[0034] 50. Piercing unit; 501. Piercing needle; 502. Ejector. Detailed Implementation

[0035] 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.

[0036] like Figures 1-4 As shown, the present invention provides a technical solution: a support roller frame for tank welding, including a receiving unit 10 and an adjusting unit 20; the receiving unit 10 includes a base 101 and multiple sets of contact structures sequentially arranged on the base 101 along a first direction, the contact structures including two support components arranged opposite to each other along a second direction, the support components including a support seat 102, multiple receiving seats 103 connected to the support seat 102, receiving rollers 104 rotatably arranged on the receiving seats 103 in a corresponding manner, and a receiving power component connected to the receiving rollers 104 in a transmission manner, the support seat 102 having an opening The adjustment cavity 1021 is connected to the outside world. The receiving seat 103 is slidably connected to the inner wall of the adjustment cavity 1021 in the vertical direction. The receiving power component is used to drive the receiving roller 104 to rotate around the first direction as the rotation axis. The adjustment unit 20 is disposed in the adjustment cavity 1021. The adjustment unit 20 includes an extrusion block 201 slidably disposed on the inner wall of the adjustment cavity 1021 and a shifting structure 202 connected to the extrusion block 201. The extrusion block 201 has an extrusion surface 2011 that corresponds to and abuts against the receiving seat 103. The shifting structure 202 is used to drive the extrusion block 201 to move along the second direction.

[0037] It should be noted that the receiving seat 103 has an inclined surface 1031 for the extrusion block 201 to extrude, and different degrees of extrusion can be achieved at different positions of the receiving seat 103 by controlling the inclination of the inclined surface 1031.

[0038] The tank welding support roller frame provided in this application embodiment allows the tank to be welded to be placed on the receiving unit 10 using a hoisting device before use. The tank is laid horizontally along the first direction (i.e., the tank axis), with its outer bottom contacting the receiving rollers 104 in multiple contact structures. The multiple contact structures are arranged sequentially to support the entire length of the tank. In each contact structure, two support components are arranged opposite each other along the second direction (i.e., the width direction of the base 101), supporting the left and right sides of the tank respectively to form a stable bottom support.

[0039] When it is necessary to adapt to tanks of different diameters, the adjustment unit 20 is activated. The shifting structure 202 (telescopic cylinder, lead screw assembly, or hydraulic assembly) of the adjustment unit 20 begins to operate, driving the extrusion block 201 to move. Since the extrusion block 201 has multiple extrusion surfaces 2011, each extrusion surface 2011 abuts against the receiving seat 103 in a corresponding manner. The horizontal displacement of the extrusion block 201 is converted into the vertical lifting and lowering movement of the receiving seat 103 by the inclined surface 1031 of the receiving seat 103. The sliding of the receiving seat 103 along the inner wall of the adjustment cavity 1021 causes the receiving roller 104 to be synchronously adjusted to a height position that matches the diameter of the target tank. After the adjustment is in place, the shifting structure 202 stops and self-locks, fixing the extrusion block 201 and the receiving seat 103 in the current working position.

[0040] After height adjustment, a contact angle is formed between the outer wall of the tank and each receiving roller 104. The receiving power unit (servo motor) is activated, driving the receiving rollers 104 to rotate. The friction between the outer edge of the receiving rollers 104 and the outer wall of the tank causes the tank to rotate uniformly around its own axis. Multiple sets of contact structures are distributed axially, ensuring a uniform rotational driving force along the entire length of the tank, guaranteeing the stability and coaxiality of the tank's rotation. Combined with an external welding manipulator, automated circumferential welding operations can be performed.

[0041] Compared with existing technologies, by setting up a vertically sliding receiving seat 103, and a pressing block 201 and a shifting structure 202 that drive the receiving seat 103 to rise and fall synchronously, the height position of the receiving roller 104 can be adjusted. When changing tanks of different diameters, there is no need to change the equipment; the adjustment can be quickly completed by simply controlling the movement of the shifting structure 202. This allows one piece of equipment to adapt to tanks of various diameters, greatly improving the equipment's versatility and processing flexibility, and reducing the equipment investment cost and workshop space occupation for users to purchase dedicated roller frames for various tank diameters.

[0042] The adjustment unit 20 is integrated inside the receiving unit 10, eliminating the need for external tools or complex disassembly and assembly operations. Operators only need to control the shifting structure 202 to quickly switch from one tank diameter to another, significantly reducing auxiliary time. For multi-variety, small-batch production modes, the efficiency of frequent production changes is greatly improved, enabling the equipment to better adapt to the increasingly fragmented order specifications of downstream manufacturing industries.

[0043] In some embodiments, see Figure 1 A measurement unit 30 is provided between two adjacent sets of contact structures. The measurement unit 30 includes two acquisition structures that are arranged opposite each other on both sides of the base 101 along the second direction.

[0044] The acquisition structure includes a tray 301, a measuring power component 302, multiple acquisition bags 303, a pneumatic component, and multiple monitoring components. The tray 301 is rotatably connected to the receiving seat 103, and the tray 301 is a rotating axis in the first direction. The measuring power component 302 is driven to the tray 301 and is used to drive the tray 301 to rotate. Multiple acquisition bags 303 are arranged sequentially along the extension direction of the tray 301. The pneumatic component is connected to the acquisition bags 303 and is used to inflate or de-inflate the acquisition bags 303. Multiple monitoring components correspond one-to-one with the acquisition bags 303 and are used to monitor the air pressure and gas flow rate of the corresponding acquisition bag 303.

[0045] After the tank is hoisted and suspended in the air, the measurement is started. At this time, the measurement power component 302 (servo motor) starts to move, driving the support plate 301 to rotate upward, so that the support plate 301 and the multiple collection bags 303 installed on it gradually approach the outer wall of the tank.

[0046] The tray 301 rotates to a preset angle and stops, ensuring that the mounting surface of the collection bladder 303 faces the center area of ​​the tank. Then, the pneumatic actuator activates, simultaneously or sequentially inflating each collection bladder 303 through the pipeline. The collection bladders 303 gradually expand under air pressure until they abut against the outer wall surface of the tank. The tank is then lowered so that the collection bladders 303 are in close contact with the outer wall. Since the collection bladders 303 are arranged along the extension direction of the tray 301, they cover an arc-shaped section around the circumference of the tank, and multiple collection bladders 303 form close contact with the outer wall at different circumferential positions of the tank.

[0047] Once each collection capsule 303 has achieved a stable fit with the outer wall of the tank, the pneumatic components maintain the air supply pressure, and the monitoring components connected to each collection capsule 303 begin operation. The monitoring components (pressure sensor and gas flow sensor) collect real-time data on the air pressure inside each collection capsule 303 and the cumulative gas flow rate during inflation. Since the tank diameter determines the volume change and steady-state air pressure required for the collection capsule 303 to expand to fit the tank, a larger tank diameter requires a smaller expansion range for the collection capsule 303, resulting in less gas being injected; conversely, a smaller tank diameter requires a larger expansion range for the collection capsule 303, resulting in more gas being injected.

[0048] Based on the "air pressure-inflation volume-tank diameter" relationship model established in advance through calibration experiments, and combined with the known installation position and angle of each collection capsule 303, the actual curvature or diameter of the tank at the measurement section is calculated by a multi-point fitting algorithm.

[0049] The measuring unit 30, a type 303 sampling capsule, is integrated into the roller frame. After the tank is positioned, it automatically measures the diameter. The measurement result directly drives the subsequent automatic height adjustment, requiring no manual intervention throughout the process. This simplifies the changeover process from a multi-step cycle of "lifting-trial assembly-re-lifting and adjustment" to a one-click process of "lifting-measurement-automatic adjustment," significantly reducing auxiliary time and enabling the equipment to quickly respond to the needs of multi-variety, small-batch production.

[0050] Meanwhile, the collection capsule 303 itself is flexible and can adapt to slight unevenness, weld scars or oxide scale on the surface of the tank, ensuring the success rate of bonding and the consistency of measurement, and avoiding the problems of jamming or measurement jump that may occur on the surface of the rigid measuring probe.

[0051] In some embodiments, see Figure 1 The pallet 301 includes an active pallet 3011 rotatably connected to the receiving seat 103, a passive pallet 3012 rotatably connected to the active pallet 3011, and a spring-loaded component installed between the active pallet 3011 and the passive pallet 3012. The active pallet 3011 is connected to the measuring power component 302. The passive pallet 3012 rotates about a first direction. The spring-loaded component has a preload force that causes the passive pallet 3012 to rotate upward. Optionally, the spring-loaded component is a torsion spring.

[0052] When the integrated rigid support plate 301 is close to the tank, its posture is entirely determined by the drive mechanism and cannot be adjusted according to the actual contour of the tank surface. When the tank has ellipticity, local deformation, or diameter deviation, the distance between the collection capsules 303 at different positions on the rigid support plate 301 and the tank surface is inconsistent, causing some collection capsules 303 to be over-compressed and partially suspended, which seriously affects the fitting accuracy of multi-point measurements.

[0053] The support plate 301 is divided into two sections: an active support 3011 and a passive support 3012. A spring-loaded component with upward preload is installed at the hinge, allowing the passive support 3012 to automatically adjust its deflection angle based on the reaction force from the tank surface after contacting the tank. This floating hinge structure enables the passive support 3012 and its associated collection bladders 303 to conform to the actual contour of the tank, ensuring consistent fit among the collection bladders 303.

[0054] In some embodiments, see Figure 1 The measurement unit 30 also includes a stabilizing structure that corresponds one-to-one with the acquisition structure.

[0055] The stabilizing structure includes a stabilizing bracket 304 rotatably connected to the base 101 and a stabilizing power component that is drively connected to the stabilizing bracket 304. The stabilizing power component is used to drive the stabilizing components to rotate about the second direction as the rotation axis.

[0056] After the pallet 301 flips upward, the stabilizing power component (servo motor) starts to operate. The stabilizing power component drives the stabilizing bracket 304 to rotate, changing the stabilizing bracket 304 from a horizontal state to a vertical state, thereby forming a supporting posture for the pallet 301.

[0057] After the tank is lowered, its own weight presses down on the passive support 3012, which abuts against the stabilizing bracket 304. When the collection bladder 303 is inflated and presses against the tank, the force generated by the tank on the collection bladder 303 and the support plate 301 is transmitted to the stabilizing bracket 304, which shares part of the load and reduces the load on the measuring power component 302.

[0058] After the measurement is completed and the collection capsule 303 is deflated and detached from the tank surface, the tank is lifted, causing the passive support 3012 to detach from the stabilizing bracket 304. Then, the stabilizing power component drives the stabilizing bracket 304 to rotate in the opposite direction, changing the stabilizing bracket 304 from a vertical to a horizontal position. After the stabilizing bracket 304 resets, it makes room for the downward flipping reset of the support plate 301. Subsequently, the support plate 301 resets under the drive of the measuring power component 302, and the entire measuring unit 30 returns to a non-working state, awaiting the next measurement command.

[0059] Without the stabilizing bracket 304, the reaction force of the tank on the pallet 301 is entirely borne by the bearings at the rotating connection of the pallet 301 and the measuring power component 302. Especially when measuring large-diameter, heavy tanks, prolonged exposure to continuous off-center loads can lead to increased clearance in the rotating joint, overload of the measuring power component 302, or wear of the self-locking mechanism. The stabilizing bracket 304 distributes part of the load, reducing the force and torque transmitted to the rotating connection and the measuring power component 302. The measuring power component 302 only needs to provide the driving force for the pallet 301 to rotate into place, without continuously resisting the reaction force of the tank during measurement. This helps reduce the power requirement and size of the measuring power component 302, extending its service life.

[0060] In some embodiments, see Figure 1 and Figure 3 The stabilizing structure also includes a positioning post 305 fixed to the stabilizing bracket 304. The positioning post 305 corresponds one-to-one with the passive support 3012. The bottom wall of the passive support 3012 is provided with a positioning groove 3013 that is compatible with the positioning post 305.

[0061] It should be noted that the opening of the positioning groove 3013 can be designed with an flared or conical surface to provide a certain guide tolerance for the positioning post 305.

[0062] When the direction of the tank's reaction force changes or vibration occurs, a slight relative slippage or separation may occur between the two, weakening the support effect. A positioning post 305 is installed on the stabilizing bracket 304, and a matching positioning groove 3013 is opened on the bottom wall of the passive support 3012. Through the plug-in connection, the stabilizing bracket 304 and the passive support 3012 are upgraded from a "butt-on support" to a "locking connection." This plug-in connection effectively constrains the degrees of freedom of the passive support 3012 in multiple directions, eliminates relative displacement gaps between the contact surfaces, and ensures that the passive support 3012 maintains precise spatial positioning during measurement. This guarantees that the contact state between each collection capsule 303 and the tank does not drift throughout the entire measurement cycle, improving the repeatability and reliability of the measurement data.

[0063] In some embodiments, see Figure 4 The collection bag 303 is equipped with an anti-fall roller 40, which is slidably mounted on the passive support 3012. The anti-fall roller 40 moves radially along the passive support 3012. The passive support 3012 has a groove 3014 for the anti-fall roller 40 to slide. An elastic element is fixed between the inner wall of the groove 3014 and the anti-fall roller 40. The elastic element has a preload force that causes the anti-fall roller 40 to move upward. A limiting structure is provided in the groove 3014 and is connected to the anti-fall roller 40. The limiting structure is used to fix the anti-fall roller 40 and the inner wall of the groove 3014 together.

[0064] When the measuring unit 30 is operating normally, the collection capsule 303 is in good condition. At this time, the limiting structure is not triggered, and the anti-fall roller 40 can slide freely in the groove 3014. The highest point of the anti-fall roller 40 is aligned with the surface of the collection capsule 303 under the compression of the tank. However, if the collection capsule 303 fails due to rupture or other reasons, the limiting structure is triggered, causing the anti-fall roller 40 to maintain its original position. Thus, the anti-fall roller 40 replaces the position of the collection capsule 303, thereby supporting the tank.

[0065] During normal operation, the anti-fall roller 40 floats with the surface of the tank under the preload of the elastic component, with its highest point always in contact with the outer wall of the tank and at the same support height as the surface of the collection bladder 303. When the collection bladder 303 fails, the limiting structure simply locks the anti-fall roller 40, already in its supported position, back into place. The anti-fall roller 40 directly assumes its supporting function without any displacement. This "zero-stroke switching" mechanism eliminates the time delay in protection response in principle. The tank is mechanically supported and supported simultaneously with the failure of the collection bladder 303, preventing any fall displacement and significantly improving the timeliness and reliability of safety assurance.

[0066] In some embodiments, see Figure 4 The anti-fall roller 40 includes a sinking section 401 slidably disposed in the groove 3014 and a pressure-bearing section 402 hinged to the sinking section 401. The pressure-bearing section 402 rotates about a first direction as a rotation axis.

[0067] In the rigid integral anti-fall roller 40 design, the top surface of the anti-fall roller 40 is a plane with a fixed angle or an arc surface with a fixed curvature. Its posture is determined by the linear guidance of the chute and cannot be adjusted according to changes in the tangential direction of the tank surface. When the tank diameter changes or the measurement point is located at different positions around the tank circumference, the contact angle between the top surface of the anti-fall roller 40 and the tank surface may not match, potentially resulting in only edge contact or single-point contact. This leads to stress concentration, damaging the tank surface coating or base material, and also reduces the stability of the support.

[0068] The anti-fall roller 40 is divided into a sinking section 401 and a pressure-bearing section 402. A rotating pair with a first direction as the rotation axis is set at the hinge, so that the pressure-bearing section 402 can automatically deflect according to the actual tangential direction of the tank surface at that point, achieving surface contact between the contact surface and the tank surface. This adaptive contact posture fundamentally solves the technical problem of inconsistent contact state of the rigid integral anti-fall roller 40 at different tank diameters and different measurement points, ensuring the stability of the support and the protective effect on the tank surface.

[0069] In some embodiments, see Figure 4 A fluid bladder 4021 is provided on the outer periphery of the pressure section 402, and a viscous agent is provided inside the fluid bladder 4021.

[0070] The pressure section 402 is provided with multiple storage slots 4011. A piercing unit 50 is provided in the storage slot 4011. The piercing unit 50 includes a needle 501 that slides in the storage slot 4011 and an ejector 502 that is connected to the needle 501. The ejector 502 is used to drive the needle 501 out of the storage slot 4011 and pierce the fluid sac 4021.

[0071] A fluid bladder 4021 containing a thickener is installed around the outer periphery of the pressure section 402, and an impact-triggered puncture unit 50 is configured to automatically release the high-viscosity damping medium while the anti-fall roller 40 is subjected to the impact of falling. The viscous resistance generated by the thickener at the contact interface and in the moving pair converts the gravitational potential energy of the tank into heat energy and dissipates it slowly, so that the transition process from zero load to steady state is changed from transient impact to smooth loading.

[0072] Meanwhile, placing the fluid layer between the collection capsule 303 and the anti-fall wheel avoids direct hard contact between the collection capsule 303 and the anti-fall wheel, thereby reducing wear on the collection capsule 303 and improving its service life.

[0073] In some embodiments, the collection capsule 303 is provided with a wear-resistant layer on its outer periphery.

[0074] The substrate of the collection capsule 303 is usually made of a high-molecular elastomer with excellent airtightness. Its core function is to inflate and seal the pressure, but its tear resistance, scratch resistance, and wear resistance are often limited. The surface of the tank in the welding workshop is generally covered with oxide scale, weld scars, local rust, and weld spatter residue. These hard and rough features are very easy to scratch or wear through the capsule substrate in direct contact and sliding friction, leading to air leakage and failure.

[0075] The inner capsule substrate focuses on airtight sealing and elastic deformation, while the outer wear-resistant layer focuses on withstanding mechanical wear. The wear-resistant layer can be made of materials with high wear resistance (such as wear-resistant rubber, polyurethane elastomers, aramid fiber fabrics, ceramic particle coatings, etc.), which are different from the capsule substrate and have far superior wear resistance. This functional layered design, where each layer performs its specific function, significantly extends the effective working life of the collection capsule 303, reducing replacement frequency and maintenance costs.

[0076] In some embodiments, see Figure 2 The extrusion block 201 is recessed inward at the extrusion surface 2011 to form a control cavity 2012. The adjustment unit 20 also includes a control block 203 slidably disposed in the control cavity 2012 and a control component that is driven to the control block 203. The control component is used to drive the control block 203 to move. The control component is a pneumatic component or a hydraulic component.

[0077] Optionally, the support assembly also includes a transverse sliding seat slidably disposed on the receiving seat 103 along the second direction and a transverse sliding member drively connected to the transverse sliding seat. The receiving roller 104 is rotatably connected to the transverse sliding seat, and the transverse sliding member is used to drive the transverse sliding seat to move.

[0078] By adjusting the extension of the control block 203 through the control components, the squeezing degree of the extrusion block 201 on each receiving seat 103 is different, thereby achieving personalized adjustment of the position of the receiving roller 104. At the same time, through the coordinated cooperation of the transverse component (linear module) and the shifting structure 202, the position adjustment of the receiving roller 104 is flexible, enabling the device to adapt to more tank sizes and further improving the applicability of the device.

[0079] 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 embodiments and their equivalents.

Claims

1. A support roller frame for tank welding, characterized in that, include: The receiving unit includes a base and multiple sets of contact structures sequentially arranged on the base along a first direction. Each contact structure includes two support components arranged opposite to each other along a second direction. Each support component includes a support base, multiple receiving seats connected to the support base, receiving rollers rotatably disposed on the receiving seats, and a receiving power component connected to the receiving rollers. The support base has an adjustment cavity communicating with the outside. The receiving seats are slidably connected to the inner wall of the adjustment cavity along the vertical direction. The receiving power component is used to drive the receiving rollers to rotate about the first direction as the rotation axis. as well as An adjustment unit is disposed within the adjustment cavity. The adjustment unit includes a pressing block slidably disposed on the inner wall of the adjustment cavity and a shifting structure connected to the pressing block. The pressing block has pressing surfaces that abut against the receiving seat one by one. The shifting structure is used to drive the pressing block to move along the second direction.

2. The support roller frame for tank welding according to claim 1, characterized in that, A measurement unit is provided between two adjacent sets of contact structures. The measurement unit includes two acquisition structures disposed opposite each other on both sides of the base along the second direction. The acquisition structure includes: A tray is rotatably connected to the receiving seat, and the tray rotates about the first direction as its axis of rotation. A measuring power component is connected to the pallet and is used to drive the pallet to rotate; Multiple collection capsules are arranged sequentially along the extension direction of the tray; A pneumatic component, connected to the collection capsule, and used to inflate or deflat the collection capsule; and Multiple monitoring components are provided, each corresponding to a collection capsule, and are used to monitor the air pressure and gas flow rate of the corresponding collection capsule.

3. The support roller frame for tank welding according to claim 2, characterized in that, The pallet includes an active support rotatably connected to the receiving seat, a passive support rotatably connected to the active support, and a spring-loaded member installed between the active support and the passive support. The active support is connected to the measuring power member, the passive support is rotated about the first direction, and the spring-loaded member has a preload force that causes the passive support to rotate upward.

4. The support roller frame for tank welding according to claim 3, characterized in that, The measurement unit also includes a stable structure that corresponds one-to-one with the acquisition structure; The stabilizing structure includes a stabilizing bracket rotatably connected to the base and a stabilizing power component pulsatingly connected to the stabilizing bracket. The stabilizing power component is used to drive the stabilizing components to rotate about the second direction as the rotation axis.

5. The support roller frame for tank welding according to claim 4, characterized in that, The stabilizing structure also includes positioning columns fixed to the stabilizing bracket. Each positioning column corresponds to a passive support, and the bottom wall of the passive support has a positioning groove that is compatible with the positioning column.

6. The support roller frame for tank welding according to claim 3, characterized in that, The collection bag is equipped with an anti-fall roller, which is slidably mounted on the passive support. The anti-fall roller moves radially along the passive support. The passive support has a groove for the anti-fall roller to slide in. An elastic member is fixed between the inner wall of the groove and the anti-fall roller. The elastic member has a preload force that causes the anti-fall roller to move upward. A limiting structure is provided in the groove and is connected to the anti-fall roller. The limiting structure is used to fix the anti-fall roller and the inner wall of the groove.

7. The support roller frame for tank welding according to claim 6, characterized in that, The anti-fall roller includes a lower section that slides in the groove and a pressure section that is hinged to the lower section. The pressure section rotates about the first direction as a rotation axis.

8. The support roller frame for tank welding according to claim 7, characterized in that, The outer periphery of the pressure-bearing section is provided with a fluid bladder, and the fluid bladder contains a viscous agent; The pressure section has multiple receiving slots, and each receiving slot has a piercing unit. The piercing unit includes a needle that slides in the receiving slot and an ejector connected to the needle. The ejector is used to drive the needle out of the receiving slot and pierce the fluid sac.

9. The support roller frame for tank welding according to claim 2, characterized in that, The collection capsule has a wear-resistant layer on its outer periphery.

10. The support roller frame for tank welding according to claim 1, characterized in that, The extrusion block is recessed inward at the extrusion surface to form a control cavity. The adjustment unit also includes a control block slidably disposed in the control cavity and a control component drively connected to the control block. The control component is used to drive the control block to move.

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