A tank polishing device

Abstract

The present invention provides a tank body polishing device, belonging to the technical field of tank body processing. The tank body polishing device includes a base, and further includes: a polishing airbag, one end of the polishing airbag is closed, the other end is rotatably connected to the base and is connected to the output port of an air delivery component; a plurality of universal components, the universal components are arranged inside the polishing airbag, a synchronous rod connected to the polishing airbag is arranged on the universal components, and the plurality of universal components are connected end to end through a cross shaft; by arranging a plurality of universal components and enabling only the universal components near the corner to rotate, when the device enters a straight pipe section, it is in a rigid state, and when it is at the corner, the plurality of universal components can turn in sequence, so that the device is more convenient to penetrate into the inside of a bent pipe.

Description

Technical Field

[0001] The present invention belongs to the technical field of tank processing, and particularly relates to a tank polishing device. Background Art

[0002] In the fields of industrial production and storage, as an important container device, tanks are used in the storage, transportation, and processing of liquids, gases, and some solid substances. The design, manufacture, and material selection of tanks are directly related to their service life and safety, and also directly affect production efficiency, energy consumption, environmental protection, etc. Tanks are generally connected to pipelines to transport media, and when processing tanks, it is necessary to polish the interior of the pipelines on the tanks.

[0003] In a Chinese patent with the authorization publication number CN113601339B, a deburring treatment device for exhaust elbows is disclosed, including a frame; an elbow fixing device arranged on the frame; a grinding device, which includes a sand belt and two wire carrying devices. The two wire carrying devices are respectively arranged at the top and bottom of the frame, and both ends of the sand belt are respectively arranged on the two wire carrying devices. The wire carrying devices are used to roll up or release the sand belt; two driving devices arranged on the frame for driving the wire carrying devices to rotate; an airbag placed inside the elbow, with an air inlet pipe and an air outlet pipe arranged on the airbag. The air inlet pipe is connected to an external air supply device, and the air outlet pipe is connected to an external air extraction device; a control device arranged on the frame, and the control device is used to indirectly control the operation of the two driving devices and, at the same time, indirectly control the operation of the external air supply device and the external air extraction device.

[0004] The above technical solution can automatically perform deburring treatment on the inner wall of the elbow, and the deburring treatment on the inside of the elbow is uniform without any untreated situation, and the effect is good.

[0005] However, considering that both the airbag and the sand belt are flexible, it is not easy for the airbag and the sand belt to penetrate into the inside of the elbow. In addition, the current technical solution relies on pulling the sand belt to contact and grind the inside of the elbow. Especially when processing complex areas such as corner A or corner B of the elbow (as shown in Figure 11 ), problems will appear. In this scenario, the sand belt is prone to exerting a squeezing effect on the airbag during the force application process, and the compressibility of the gas inside the airbag causes it to deform when subjected to pressure. This deformation not only weakens the effective contact between the sand belt and the elbow corner (such as corner A or corner B), but also may cause a significant reduction in friction. In some cases, the sand belt may even completely lose contact with the grinding area, thus greatly affecting the grinding effect at the elbow corner and making the grinding of this area particularly difficult. In addition, the above technical solution is difficult to weld the pipelines welded to the tank. Summary of the Invention

[0006] The object of the present invention is to provide a tank body polishing device, aiming to solve the problems that the polishing structure in the prior art is difficult to penetrate into the elbow pipe and cannot effectively polish the corner.

[0007] To achieve the above object, the present invention provides the following technical solutions: A tank body polishing device, including: a base, and further including:

[0008] A polishing airbag, one end of the polishing airbag is in a closed shape, the other end is rotatably connected to the base and is connected to the output port of the air supply component;

[0009] A plurality of universal components, the universal components are arranged inside the polishing airbag, a synchronizing rod connected to the polishing airbag is arranged on the universal components, and the plurality of universal components are connected end to end through a cross shaft. The universal component includes a housing, a limiting structure and an abutting member. The limiting structure and the abutting member are arranged on the housing. The limiting structure can limit the relative rotation between the head and tail ends of the universal component and the cross shaft. When the limiting structure limits the universal component, the plurality of universal components are arranged on the same axis. The abutting member can release the limitation of the limiting structure on the universal component.

[0010] The beneficial effect of the present invention is that by arranging a plurality of universal components and making the universal components be on the same axis before contacting the corner of the elbow pipe. When the topmost universal component abuts against the corner of the elbow pipe, the limiting structure will cancel the limitation on the topmost universal component, so that the topmost universal component can rotate towards the corner. Then, through the rotation of the topmost universal component, it can drive the adjacent limiting structure to cancel the limitation of another universal component, so that the other universal component can rotate at the corner, so that the device is in a rigid state between the corners and can turn in sequence after contacting the corner, making the device easier to penetrate into the elbow pipe. In addition, through the rotation of the polishing airbag, the inner wall of the pipe can be polished evenly, effectively avoiding the situation of incomplete polishing and improving the polishing effect.

[0011] A further technical solution of the present invention is that the limiting structure includes a limiting groove arranged on the cross shaft, and the housing is respectively provided with a first limiting component and a second limiting component adapted to the limiting grooves in the two cross shafts at the head and tail ends. The first limiting component is connected to the abutting member, and the first limiting component and the second limiting component are connected through a first elastic member. A second elastic member capable of pushing the first limiting component and the second limiting component to engage with the limiting groove is arranged inside the housing.

[0012] The effect is that by arranging the first limiting component and the second limiting component and making the first limiting component and the second limiting component cooperate with the limiting groove, the rotation of the housing can be limited.

[0013] A further technical solution of the present invention is that the first limiting member includes a sliding plate which slides inside the housing. A first clamping block is provided on the sliding plate, and the second elastic member can make the first clamping block snap into the limiting groove to limit the cross shaft.

[0014] The effect is that the movement of the first clamping block can be driven by the sliding of the sliding plate, so that the first clamping block can cooperate with the limiting groove and limit the rotation of the cross shaft at one end.

[0015] A further technical solution of the present invention is that the second limiting member includes a connecting column. One end of the connecting column is connected to the sliding plate through a first elastic member. A second clamping block is provided on the connecting column, and the first elastic member can make the second clamping block snap into the limiting groove to limit the cross shaft.

[0016] The effect is that the movement of the connecting column can be driven by the sliding of the sliding plate. When the connecting column moves, the second clamping block can be driven to snap into the limiting groove of the cross shaft at the other end, so that the rotation of the cross shaft can be limited.

[0017] A further technical solution of the present invention is that the synchronizing rod is hinged to the housing. A stop rod is provided on the first limiting member, and the stop rod abuts against one side of the synchronizing rod. The swinging of the synchronizing rod can disengage the first limiting member and the second limiting member from the limiting groove through the stop rod.

[0018] The effect is that after the first limiting member and the second limiting member are disengaged from the limiting groove by driving the synchronizing rod, when the universal joint assembly is driven to rotate, the universal joint assembly can drive the polishing airbag to polish inside the elbow pipe.

[0019] A further technical solution of the present invention is that the polishing airbag includes an airbag body and polishing strips. The polishing strips are arranged on the outer surface of the airbag body and protrude from the airbag body.

[0020] A further technical solution of the present invention is that when the angle between two adjacent universal joint assemblies changes, the limitation of the adjacent universal joint assemblies can be released.

[0021] A further technical solution of the present invention is that two mounting ears are provided at both ends of the housing. The included angle between the mounting ears at one end and the mounting ears at the other end is set at 90 degrees, and the cross shaft is mounted on the mounting ears.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. By setting multiple universal components and allowing only the universal components near the corners to rotate, when the device enters the straight pipe section, it is in a rigid straight state, and when at the corner, the multiple universal components can turn sequentially, making the device more convenient to penetrate into the inside of the bent pipe.

[0024] 2. By inflating the polishing airbag and then driving the polishing airbag to rotate by the universal component, the inner wall of the bent pipe can be polished evenly, avoiding the situation where there is an area that cannot be polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0026] Figure 1 is the overall structural schematic diagram of the specific embodiment in the present invention;

[0027] Figure 2 is the installation structural schematic diagram of the universal component in the specific embodiment in the present invention;

[0028] Figure 3 is the assembly structural schematic diagram of the universal component in the specific embodiment in the present invention;

[0029] Figure 4 is the structural schematic diagram of the first limiting component in the specific embodiment in the present invention;

[0030] Figure 5 is the installation structural schematic diagram of the second limiting component in the specific embodiment in the present invention;

[0031] Figure 6 is the axonometric sectional view of the universal component in the specific embodiment in the present invention;

[0032] Figure 7 is the structural schematic diagram of the cross shaft in the specific embodiment in the present invention;

[0033] Figure 8 is the schematic diagram of the polishing state of the polishing airbag in the specific embodiment in the present invention;

[0034] Figure 9 is Figure 5 the enlarged structural schematic diagram at position A in

[0035] Figure 10 is Figure 5 the enlarged structural schematic diagram at position B in

[0036] Figure 11 is the structural schematic diagram of the prior art.

[0037] In the figure: 1. Base; 2. Polishing airbag; 21. Bladder body; 22. Polishing strip; 3. Air delivery component; 4. Universal joint assembly; 5. Cross shaft; 51. Limiting groove; 6. Limiting structure; 61. First limiting component; 611. Sliding plate; 612. First clamping block; 613. Shift lever; 62. Second limiting component; 621. Connecting column; 622. Second clamping block; 63. First elastic component; 64. Second elastic component; 7. Abutting component; 8. Synchronous rod; 9. Housing; 91. Mounting ear. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 - 10 , the present invention provides the following technical solutions: A tank body polishing device includes: a base 1, and further includes: a polishing airbag 2 and a plurality of universal joint assemblies 4;

[0040] Among them, one end of the polishing airbag 2 is in a closed state, and when the polishing airbag 2 is in a fully inflated state, the polishing airbag 2 is in a cylindrical shape. The other end is connected to the base 1 through a rotating disk, and the rotating disk can be driven to rotate by a driving member. In this embodiment, a motor (not shown in the figure) is used to drive a transmission component to drive the rotating disk to rotate. The transmission component can be a gear transmission, a belt transmission or a chain transmission, etc. When the rotating disk rotates, it can drive the polishing airbag 2 to rotate, and an air delivery component 3 is installed on the base 1. When the air delivery component 3 works, it can fill the inside of the polishing airbag 2 with gas and make the polishing airbag 2 expand, so that the outer surface of the polishing airbag 2 contacts the inner wall of the elbow pipe. When it is necessary to polish the elbow pipe, through the rotation of the polishing airbag 2, relative movement can be generated between the polishing airbag 2 and the elbow pipe, so that the inner wall of the elbow pipe can be polished, and the inner wall of the elbow pipe can be filled by inflating the polishing airbag 2, thus avoiding the appearance of polishing dead corners;

[0041] Please refer to Figure 2 , a plurality of universal joint assemblies 4 are all arranged inside the polishing airbag 2, and a synchronous rod 8 connected to the polishing airbag 2 is arranged on the universal joint assembly 4, so that when the universal joint assembly 4 rotates, it can rotate synchronously with the polishing airbag 2, thus avoiding the torsion of the polishing airbag 2 itself caused by the friction between the polishing airbag 2 and the elbow pipe when the polishing airbag 2 rotates. In order to achieve the function that the universal joint assembly 4 can rotate in all directions, a plurality of universal joint assemblies 4 are connected end to end through a cross shaft 5, and the cross shaft 5 can rotate relative to the universal joint assembly 4;

[0042] Please refer to Figures 2 - 6 Figures 2 - 6 , the universal joint assembly 4 includes a housing 9, a limiting structure 6 and a contact member 7. The housing 9 is cylindrical, and two mounting ears 91 are integrally formed at both ends. The two mounting ears 91 are arranged in a mirror image. The cross shaft 5 is mounted on the mounting ears 91. The included angle between the mounting ears 91 at one end and the mounting ears 91 at the other end is set to 90 degrees. That is to say, the mirror plane between the two mounting ears 91 at one end intersects with the mirror plane between the two mounting ears 91 at the other end and is set to 90 degrees;

[0043] The limiting structure 6 and the contact member 7 are arranged on the housing 9. The limiting structure 6 can limit the relative rotation between the head and tail ends of the universal joint assembly 4 and the cross shaft 5. When the limiting structure 6 limits the universal joint assembly 4, multiple universal joint assemblies 4 are arranged on the same axis. The contact member 7 can release the limitation of the limiting structure 6 on the universal joint assembly 4.

[0044] During use, multiple universal joint assemblies 4 will first be limited by the limiting structure 6 to be on the same axis. Then, the universal joint assembly 4 is inserted into the inside of the bent pipe, and the corner of the bent pipe abuts against the contact member 7, and the limitation of the limiting structure 6 on the universal joint assembly 4 is released in sequence, so as to facilitate the device to penetrate into the inside of the bent pipe.

[0045] The limiting structure 6 includes a limiting groove 51 provided on the cross shaft 5. As Figure 7 shown, the limiting groove 51 is formed by a C-shaped ring sleeved on the cross shaft 5. The C-shaped ring can be fixed on the cross shaft 5 by a welding process, and the two ends of the C-shaped ring form the limiting groove 51. The housing 9 is also provided with a first limiting member 61 and a second limiting member 62. The first limiting member 61 and the second limiting member 62 are respectively adapted to the limiting grooves 51 on the cross shafts 5 at the head and tail ends. The first limiting member 61 is connected to the contact member 7, so that the contact member 7 can directly release the limitation of the first limiting member 61 on the cross shaft 5. The first limiting member 61 and the second limiting member 62 are connected by a first elastic member 63. When the first limiting member 61 moves, the second limiting member 62 can be driven to move through the first elastic member 63, so that the second limiting member 62 can release the limitation on the cross shaft 5. A second elastic member 64 capable of pushing the first limiting member 61 and the second limiting member 62 to engage with the limiting groove 51 is arranged in the housing 9, so that the first limiting member 61 and the second limiting member 62 are in a state of limiting the cross shaft 5 in a natural state. At this time, multiple universal joint assemblies 4 are in a coaxial state.

[0046] In use, when the abutting member 7 abuts against the corner of the elbow pipe, the abutting member 7 is pushed to move towards the housing 9, which can directly drive the first limiting member 61 out of the limiting groove 51, thereby releasing the limitation between one end of the housing 9 and the cross shaft 5. When the first limiting member 61 moves, the second limiting member 62 can be driven to move by the first elastic member 63, and the limitation between the other end of the housing 9 and the cross shaft 5 can be released through the movement of the second limiting member 62, so as to facilitate the swinging of the universal joint assembly 4.

[0047] Please refer to Figures 2 - 6 , the first limiting member 61 includes a sliding plate 611 which slides inside the housing 9. Of course, a chamber for the sliding plate 611 to slide is provided inside the housing 9. A first clamping block 612 is arranged on the sliding plate 611 through a cylinder, and the first clamping block 612 can slide up and down in the mounting ear 91. The second elastic member 64 can make the first clamping block 612 snap into the limiting groove 51 to limit the cross shaft 5. The second elastic member 64 is a compression spring, one end of which is fixed to the bottom of the housing 9 and the other end is connected to the sliding plate 611. When the second elastic member 64 releases energy, the first clamping block 612 can snap into the inside of the limiting groove 51.

[0048] The second limiting member 62 includes a connecting column 621 which penetrates through the sliding plate 611 and is connected to the first elastic member 63. The first elastic member 63 is a tension spring, one end of which is fixed to the sliding plate 611 and the other end is fixed to one end of the connecting column 621. A second clamping block 622 is arranged at the end of the connecting column 621 far from the first elastic member 63, and the second clamping block 622 can slide inside the mounting ear 91. When the first limiting member 61 releases the limitation on the cross shaft 5, the connecting column 621 can be pulled to move through the first elastic member 63, and the second clamping block 622 on the connecting column 621 can release the limitation on the cross shaft 5.

[0049] Please refer to Figure 2 and Figure 4 , the synchronizing rod 8 is hinged to the housing 9, and the other end slides along the axis direction of the polishing air bag 2 on the inner wall of the polishing air bag 2. A sliding groove (not shown in the figure) can be arranged on the inner wall of the polishing air bag 2, and one end of the synchronizing rod 8 can slide inside the sliding groove for a certain distance. A stop rod 613 is arranged on the first limiting member 61, and the stop rod 613 can move along with the first limiting member 61. The stop rod 613 abuts against one side of the synchronizing rod 8, and the swinging of the synchronizing rod 8 can disengage the first limiting member 61 and the second limiting member 62 from the limiting groove 51 through the stop rod 613.

[0050] When in use, gas is filled into the polishing airbag 2 to increase the diameter of the polishing airbag 2, thereby driving one end of the synchronization rod 8 to swing. The synchronization rod 8 and the gear rod 613 are abutted against each other, thereby preventing the first limiting component 61 and the second limiting component 62 from being stuck in the limiting groove 51 and affecting the rotation of multiple universal assemblies 4, so that the polishing airbag 2 can achieve the effect of polishing the bent pipe.

[0051] Specifically, the polishing airbag 2 includes a bladder body 21 and a polishing strip 22. The polishing strip 22 is arranged on the surface of the bladder body 21 and is in a protruding state on the bladder body 21. The polishing strip 22 and the synchronization rod 8 are arranged in a staggered manner. When the polishing airbag 2 is filled with gas, the bladder body 21 at the connection position of the synchronization rod 8 is in a concave state (such as Figure 8 As shown), the capsule 21 is prevented from directly rubbing against the inside of the pipe, causing wear of the capsule 21. Since the synchronization rod 8 and the grinding strip 22 are staggered, the grinding strip 22 can contact the inner wall of the bent pipe, thereby playing a grinding role.

[0052] Specifically, when the angle between two adjacent universal joints 4 changes, the limit of the adjacent universal joints 4 can be released. When the first universal joint 4 swings, it can abut against the adjacent abutment member 7, thereby releasing the limit of the adjacent universal joint 4 and allowing the universal joint 4 to swing as well.

Claims

1. A tank polishing device, comprising: Base, characterized in that it further includes: A grinding airbag, one end of the grinding airbag is closed, the other end is rotatably connected to the base and is connected to the output port of the air delivery component; A plurality of universal components, the universal components are arranged inside the grinding airbag, a synchronizing rod connected to the grinding airbag is arranged on the universal components, and the plurality of universal components are connected end to end through a cross shaft. The universal component includes a housing, a limiting structure and an abutting member. The limiting structure and the abutting member are arranged on the housing. The limiting structure can limit the relative rotation between the two ends of the universal component and the cross shaft. When the limiting structure limits the universal component, the plurality of universal components are arranged on the same axis. The abutting member can release the limitation of the limiting structure on the universal component; The limiting structure includes a limiting groove arranged on the cross shaft. The housing is respectively provided with a first limiting component and a second limiting component adapted to the limiting groove in the two cross shafts at the head and tail ends. The first limiting component is connected to the abutting member, and the first limiting component and the second limiting component are connected by a first elastic member. A second elastic member capable of pushing the first limiting component and the second limiting component to engage with the limiting groove is arranged inside the housing. The first limiting component includes a sliding plate, the sliding plate slides inside the housing, a first clamping block is arranged on the sliding plate, and the second elastic member can make the first clamping block snap into the limiting groove to limit the cross shaft. The second limiting component includes a connecting column, one end of the connecting column is connected to the sliding plate through the first elastic member, a second clamping block is arranged on the connecting column, and the first elastic member can make the second clamping block snap into the limiting groove to limit the cross shaft. The synchronizing rod is hinged on the housing, a retaining rod is arranged on the first limiting component, and the retaining rod abuts against one side of the synchronizing rod. The swinging of the synchronizing rod can disengage the first limiting component and the second limiting component from the limiting groove through the retaining rod.

2. The tank body polishing device according to claim 1, characterized in that: The grinding airbag includes a bladder and grinding strips. The grinding strips are arranged on the outer surface of the bladder and protrude from the bladder. The grinding strips are arranged in a staggered manner with the synchronizing rod.

3. A tank body polishing device according to claim 1, characterized in that: When the angle between two adjacent universal components changes, the limitation of the adjacent universal components can be released.

4. A tank body polishing device according to claim 1, characterized in that: Two mounting ears are arranged at both ends of the housing, and the included angle between the mounting ears at one end and the mounting ears at the other end is set at 90 degrees. The cross shaft is mounted on the mounting ears.

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