Expansion ring assembly

Abstract

The utility model relates to an expansive force ring assembly, which relates to the technical field of storage tank production and comprises an expansive force ring body coaxially arranged in a storage tank and an electric hoist vertically arranged in the storage tank and used for gradually lifting the expansive force ring body. The expansive force ring body comprises a plurality of sections of arc-shaped channel steel which are spliced together in an inserted mode and jacks fixed to inner rings of the arc-shaped channel steel, supporting parts of the jacks are fixed to the inner rings of the adjacent arc-shaped channel steel, and the multiple sets of jacks work synchronously to expand the expansive force ring body to abut against the inner wall of the storage tank. The expansion ring has the beneficial effects that the expansion ring is gradually descended and supported from top to bottom during use, so that the operations such as welding, dismounting and the like on the expansion ring are reduced, and the expansion ring is more convenient and quicker to use.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank production, in particular to an expansion ring assembly. Background Art

[0002] With the vigorous development of industry, the demand for the manufacture of vertical cylindrical storage tanks has increased, and on-site manufacture of vertical cylindrical storage tanks has become a commonly used equipment in modern industrial installations. At present, conventional manufacturing methods include upright method, inverted method and gas cap method. Among them, the inverted method has the advantages of low cost, less high-altitude work, short construction period and low safety risk, and is widely used. In the process of manufacturing storage tanks using the inverted method, problems such as large deformation of the tank wall, excessive angles and verticality after welding are often encountered. Based on actual on-site experience, it is found that expansion rings are an important tool for controlling the deformation of the tank wall during the lifting process of the tank. By selecting reasonable expansion ring types and effectively arranging them appropriately, we can control and reduce the deformation of the cylinder during the tank manufacturing process, or even eliminate deformation.

[0003] However, the expansion ring usually needs to be assembled, welded and disassembled multiple times inside the tank when in use, which is very inconvenient. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an expansion ring assembly, which solves the technical problem that the expansion ring usually needs to be assembled, welded and disassembled multiple times inside the storage tank when in use, which is very inconvenient.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] An embodiment of the present utility model provides an expansion ring assembly, including an expansion ring body coaxially arranged inside a storage tank and an electric hoist vertically arranged inside the storage tank for gradually lifting the expansion ring body, the expansion ring body including multiple sections of arc-shaped channel steels plugged into and assembled together, and a jack fixed to the inner ring of the arc-shaped channel steel, the support portion of the jack being fixed to the inner ring of the adjacent arc-shaped channel steel, and multiple groups of the jacks working synchronously to expand the expansion ring body until it is pressed against the inner wall of the storage tank.

[0009] The embodiment of the present invention proposes an expansion ring assembly. When using the expansion ring assembly, the electric hoist is transported and fixed inside the storage tank, and then the arc-shaped channel steels are placed in sequence inside the storage tank and plugged into one end close to each other, and the jack is fixed to the inner ring of the arc-shaped channel steel, so that the support part and the base of the jack are respectively fixed to the adjacent arc-shaped channel steels. After the entire expansion ring body is vertically lifted to a certain height by the electric hoist, all the jacks work synchronously, so that the ends of the adjacent arc-shaped channel steels plugged into each other gradually slide and are pulled outward, thereby realizing the gradual expansion of the diameter of the entire expansion ring body until it is pressed against the inner wall of the storage tank, thereby supporting the inner wall of the storage tank. At this time, welding and other operations can be performed on the inside of the storage tank. This scheme enables the expansion ring to gradually descend and support from the top to the bottom when in use, reducing the welding and disassembly operations of the expansion ring, making the use of the expansion ring more convenient and quick.

[0010] Optionally, the inner ring of the arc-shaped channel steel is vertically fixed with a top plate near both ends, the base and support part of the jack are respectively fixed on two top plates close to each other on adjacent arc-shaped channel steels, and the end face of the top plate away from the jack is vertically fixed with a reinforcing rib plate vertically connected to the inner ring of the arc-shaped channel steel.

[0011] By vertically fixing the top plate at the inner rings at both ends of the arc-shaped channel steel, the base and support part of the jack can be fixed to the top plate respectively when the jack is installed, so that the jacking force when the jack is working is closer to the direction of relative sliding of the arc-shaped channel steel, thereby providing more sufficient jacking force and making the installation and fixation of the jack more convenient. At the same time, a reinforcing rib plate is set at the end of the top plate away from the jack, so that the reinforcing rib plate is fixed to the inner ring of the arc-shaped channel steel, so that when the jack applies pressure to the top plate, the top plate can be more stable and firm.

[0012] Optionally, the two ends of the arc-shaped channel steel are a first joint channel steel and a second joint channel steel with gradually narrowing widths, the narrowing degree of the first joint channel steel is smaller than the narrowing degree of the second joint channel steel, the second joint channel steel of the adjacent arc-shaped channel steel is inserted into the first joint channel steel, and the inner ring of the first joint channel steel is provided with a plurality of limit bars for limiting the movement of the second joint channel steel along the diameter direction of the arc-shaped channel steel.

[0013] By arranging the first joint channel steel and the second joint channel steel at both ends of the arc-shaped channel steel, when splicing the expansion ring, the adjacent second joint channel steel is directly inserted into the first joint channel steel. At this time, the limit strip limits the second joint channel steel, so that the second joint channel steel can only slide along the length direction relative to the first joint channel steel. When the expansion ring is contracted and expanded, the adjacent arc-shaped channel steels can always maintain a sliding connection, avoiding the expansion ring from splitting and disengaging during multiple contraction and expansion processes, thereby making the expansion ring assembly more convenient to use.

[0014] Optionally, the electric hoist is provided in plurality and is circumferentially spaced apart inside the storage tank, and a lifting lug for hooking the hook on the electric hoist is provided in the middle of the inner ring of the arc-shaped channel steel.

[0015] By arranging a plurality of electric hoists, the hook extending from each electric hoist can be hooked on a lifting lug, thereby making it easier to lift and lower the expansion ring body by using the plurality of electric hoists.

[0016] Optionally, a rotating platform is vertically provided in the middle of the expansion ring body, a rotating disk is rotatably provided on the upper end of the rotating platform, and the plurality of electric hoists are fixed to the upper end surface of the rotating disk and rotate synchronously with the rotation of the rotating disk.

[0017] By setting up a rotating table, the electric hoist is fixed on the rotating disk. By rotating the rotating disk, the hoist can be driven to rotate, and then the contracted expansion ring body can be driven to rotate. Therefore, during operation, the support position of the expansion ring body can be adjusted by rotating the rotating disk to facilitate operation.

[0018] Optionally, a center rod is vertically arranged in the middle of the rotating disk, and a plurality of infrared emitters are evenly spaced circumferentially on the top of the center rod. The infrared emitters are rotatably connected to the top of the center rod and illuminate and mark the inner wall of the tank in the same tilted state.

[0019] By using multiple infrared emitters to illuminate and mark the inner wall of the tank at the same inclination, when the expansion ring body is driven vertically downward by the electric hoist, the downward position can be observed more clearly, making it more convenient for the operator to operate.

[0020] Optionally, an adjustment slot is coaxially opened on the top of the center rod, an adjustment circular plate is vertically slidably arranged in the adjustment slot, the end of the infrared emitter away from the emitting end is rotatably connected to the adjustment rod, and the end of the adjustment rod away from the infrared emitter is fixed to the upper end surface of the adjustment circular plate.

[0021] The vertically movable adjustment circular plate drives multiple adjustment rods to move synchronously to control the rotation angles of multiple infrared emitters, thereby ensuring that the infrared rays emitted by the infrared emitters are more synchronized and accurate.

[0022] Optionally, a plurality of universal pulleys are provided at the lower end of the rotating platform.

[0023] By arranging a universal pulley at the lower end of the rotating table, on the one hand, the entire expansion ring assembly can be driven to move through the outward pulley, thereby facilitating the support of different storage tanks. On the other hand, when the expansion ring body supports the inner wall of the storage tank, the rotating table can also be moved through the universal pulley under the action of the reaction force to ensure that the expansion ring body is coaxial with the inner wall of the storage tank.

[0024] Optionally, a spirit level is fixed to the middle of the upper end of the arc-shaped channel steel.

[0025] By fixing a spirit level in the middle of the upper end of the arc-shaped channel steel, when the expansion ring body is moved, adjustments can be made by observing the status of the spirit levels at the upper ends of different arc-shaped channel steels to ensure that each position adjustment will not result in a large error in the horizontal state, which will affect the supporting effect of the expansion ring assembly on the inner wall of the tank.

[0026] (3) Beneficial effects

[0027] The beneficial effects of the present invention are as follows: when using the expansion ring assembly of the present invention, the electric hoist is transported and fixed inside the storage tank, and then the arc-shaped channel steels are placed in sequence inside the storage tank and plugged into one end close to each other, and the jack is fixed to the inner ring of the arc-shaped channel steel, so that the support part and the base of the jack are respectively fixed to the adjacent arc-shaped channel steels, and after the entire expansion ring body is vertically lifted to a certain height by the electric hoist, all the jacks work synchronously, so that the ends of the adjacent arc-shaped channel steels plugged into each other gradually slide and are pulled outward, thereby realizing the gradual expansion of the diameter of the entire expansion ring body until it is tightly pressed against the inner wall of the storage tank, thereby supporting the inner wall of the storage tank, and at this time, welding and other operations can be performed on the inside of the storage tank. This scheme enables the expansion ring to gradually descend and support from the top to the bottom when in use, reducing the welding and disassembly operations of the expansion ring, making the use of the expansion ring more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional schematic diagram of an embodiment of the utility model;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of .

[0030] [Description of Reference Numerals]

[0031] 1. Expansion ring body; 11. Arc-shaped channel steel; 12. Jack; 13. First joint channel steel; 14. Second joint channel steel; 15. Limit strip; 16. Top plate; 17. Reinforcement rib plate; 18. Lifting lug; 19. Level; 2. Electric hoist; 3. Rotating table; 31. Rotating disk; 32. Center rod; 321. Adjustment slot; 322. Adjustment circular plate; 323. Adjustment rod; 33. Universal pulley; 4. Infrared transmitter. DETAILED DESCRIPTION

[0032] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0033] The expansion ring assembly proposed in the embodiment of the present invention, when using the expansion ring assembly, the electric hoist is transported and fixed inside the storage tank, and then the arc-shaped channel steels are placed in sequence inside the storage tank and plugged into one end close to each other, and the jack is fixed to the inner ring of the arc-shaped channel steel, so that the support part and the base of the jack are respectively fixed to the adjacent arc-shaped channel steels, and after the entire expansion ring body is vertically lifted to a certain height by the electric hoist, all the jacks work synchronously, so that the ends of the adjacent arc-shaped channel steels plugged into each other gradually slide and are pulled outward, thereby realizing the gradual expansion of the diameter of the entire expansion ring body until it is pressed against the inner wall of the storage tank, thereby supporting the inner wall of the storage tank, and at this time, welding and other operations can be performed on the inside of the storage tank. This scheme enables the expansion ring to gradually descend and support from the top to the bottom when in use, reducing the welding and disassembly operations of the expansion ring, making the use of the expansion ring more convenient and quick.

[0034] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0035] Reference Figure 1 and Figure 2 , an expansion ring assembly, including an expansion ring body 1 coaxially arranged inside a storage tank and an electric hoist 2 vertically arranged inside the storage tank for gradually lifting the expansion ring body 1.

[0036] The expansion ring body 1 includes multiple sections of arc-shaped channel steels 11 that are plugged into and assembled with each other, and a jack 12 fixed to the inner ring of the arc-shaped channel steels 11. The support part of the jack 12 is fixed to the inner ring of the adjacent arc-shaped channel steels 11. Multiple groups of jacks 12 work synchronously to expand the expansion ring body 1 until it is close to the inner wall of the storage tank.

[0037] The two ends of the arc-shaped channel steel 11 are a first joint channel steel 13 and a second joint channel steel 14 with gradually narrowing widths. The narrowing degree of the first joint channel steel 13 is smaller than that of the second joint channel steel 14. The second joint channel steel 14 of the adjacent arc-shaped channel steel 11 is inserted into the first joint channel steel 13. The inner ring of the first joint channel steel 13 is welded with multiple limit bars 15 that limit the movement of the second joint channel steel 14 along the diameter direction of the arc-shaped channel steel 11. When splicing the expansion ring, the adjacent second joint channel steel 14 is directly inserted into the first joint channel steel 13. At this time, the limit bars 15 limit the second joint channel steel 14 so that the second joint channel steel 14 can only slide along the length direction relative to the first joint channel steel 13. When the expansion ring is contracted and expanded, the adjacent arc-shaped channel steels 11 can always maintain a sliding connection, preventing the expansion ring from splitting and disengaging during multiple contraction and expansion processes.

[0038] The inner ring of the arc-shaped channel steel 11 is vertically welded with a top plate 16 near both ends. The base and support part of the jack 12 are respectively welded and fixed to two top plates 16 close to each other on adjacent arc-shaped channel steels 11. The end surface of the top plate 16 away from the jack 12 is vertically welded with a reinforcing rib plate 17 vertically connected to the inner ring of the arc-shaped channel steel 11.

[0039] There are multiple electric hoists 2 and they are distributed circumferentially inside the tank. A lifting lug 18 for hooking the hooks on the electric hoists 2 is welded to the middle of the inner circle of the arc-shaped channel steel 11. Each hook extending from the electric hoist 2 can be hooked on a lifting lug 18, making it easier to lift and lower the expansion ring body 1 by using multiple electric hoists 2.

[0040] A rotating platform 3 is vertically installed in the middle of the expansion ring body 1, and a rotating disk 31 is rotatably installed on the upper end of the rotating platform 3. Multiple electric hoists 2 are vertically fixed to the upper end surface of the rotating disk 31 by bolts and rotate synchronously with the rotation of the rotating disk 31. By rotating the rotating disk 31, the hoists are driven to rotate, and then the contracting expansion ring body 1 is driven to rotate. Therefore, during operation, the support position of the expansion ring body 1 can be adjusted by rotating the rotating disk 31.

[0041] A central rod 32 is vertically welded to the center of the rotating disk 31. Multiple infrared emitters 4 are evenly spaced around the top of the central rod 32. These emitters 4 are pivotally connected to the top of the central rod 32 via a rotating shaft and illuminate and mark the inner wall of the tank at the same angle. An adjustment slot 321 is coaxially defined at the top of the central rod 32. An adjustment plate 322 slides vertically within the adjustment slot 321. The end of each infrared emitter 4, away from the emitting end, is pivotally connected to an adjustment rod 323. The end of the adjustment rod 323, away from the infrared emitter 4, is fixed to the upper end surface of the adjustment plate 322. The vertically movable adjustment plate 322 drives the synchronous movement of the multiple adjustment rods 323, controlling the rotational angles of the multiple infrared emitters 4 and ensuring more synchronized and precise infrared radiation from the emitters 4.

[0042] The lower end of the rotating platform 3 is fixed with multiple universal pulleys 33 by bolts. On the one hand, the outward pulleys can drive the entire expansion ring assembly to move, thereby facilitating the support of different storage tanks. On the other hand, when the expansion ring body 1 supports the inner wall of the storage tank, the rotating platform 3 can also move through the universal pulleys 33 under the action of the reaction force, ensuring that the expansion ring body 1 is coaxial with the inner wall of the storage tank.

[0043] A level 19 is bolted to the middle of the upper end of the arc-shaped channel steel 11. When the expansion ring body 1 is moved, adjustments can be made by observing the state of the level 19 at the upper end of different arc-shaped channel steels 11 to ensure that each position adjustment will not cause a large error in the horizontal state.

[0044] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An expansion ring assembly, characterized in that: The invention comprises an expansion ring body (1) coaxially arranged inside a storage tank and an electric hoist (2) vertically arranged inside the storage tank for gradually lifting the expansion ring body (1); the expansion ring body (1) comprises a plurality of sections of arc-shaped channel steels (11) plugged and assembled together and a jack (12) fixed to the inner ring of the arc-shaped channel steels (11); the support portion of the jack (12) is fixed to the inner ring of the adjacent arc-shaped channel steels (11); and a plurality of groups of the jacks (12) work synchronously to expand the expansion ring body (1) until it is pressed against the inner wall of the storage tank.

2. The expansion ring assembly according to claim 1, characterized in that: The inner ring of the arc-shaped channel steel (11) is vertically fixed with a top plate (16) near both ends, and the base and support part of the jack (12) are respectively fixed to two top plates (16) close to each other on adjacent arc-shaped channel steels (11). The end face of the top plate (16) away from the jack (12) is vertically fixed with a reinforcing rib plate (17) vertically connected to the inner ring of the arc-shaped channel steel (11).

3. The expansion ring assembly according to claim 1, characterized in that: The two ends of the arc-shaped channel steel (11) are a first joint channel steel (13) and a second joint channel steel (14) with gradually narrowing widths. The narrowing degree of the first joint channel steel (13) is smaller than the narrowing degree of the second joint channel steel (14). The second joint channel steel (14) adjacent to the arc-shaped channel steel (11) is inserted into the first joint channel steel (13). The inner ring of the first joint channel steel (13) is provided with a plurality of limiting bars (15) for limiting the movement of the second joint channel steel (14) along the diameter direction of the arc-shaped channel steel (11).

4. The expansion ring assembly according to claim 1, characterized in that: The electric hoist (2) is provided in plurality and is circumferentially spaced and distributed inside the storage tank. A lifting lug (18) for hooking the hook on the electric hoist (2) is provided in the middle of the inner circle of the arc-shaped channel steel (11).

5. The expansion ring assembly according to claim 4, characterized in that: A rotating platform (3) is vertically arranged in the middle of the expansion ring body (1); a rotating disk (31) is rotatably arranged on the upper end of the rotating platform (3); and a plurality of electric hoists (2) are fixed to the upper end surface of the rotating disk (31) and rotate synchronously with the rotation of the rotating disk (31).

6. The expansion ring assembly according to claim 5, characterized in that: A central rod (32) is vertically arranged in the middle of the rotating disk (31), and a plurality of infrared emitters (4) are evenly spaced circumferentially arranged on the top of the central rod (32). The infrared emitters (4) are rotatably connected to the top of the central rod (32) and illuminate and mark the inner wall of the storage tank in the same tilted state.

7. The expansion ring assembly according to claim 6, characterized in that: An adjusting slot (321) is coaxially provided on the top of the center rod (32), an adjusting circular plate (322) is vertically slidably provided in the adjusting slot (321), an end of the infrared emitter (4) away from the emitting end is rotatably connected to an adjusting rod (323), and an end of the adjusting rod (323) away from the infrared emitter (4) is fixed to the upper end surface of the adjusting circular plate (322).

8. The expansion ring assembly according to claim 5, characterized in that: A plurality of universal pulleys (33) are provided at the lower end of the rotating platform (3).

9. The expansion ring assembly according to claim 1, characterized in that: A level (19) is fixed at the middle of the upper side end of the arc-shaped channel steel (11).

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