A support device for preventing deformation at the large-angle seams of large storage tanks

Abstract

The present invention provides a support device for preventing deformation at the large-angle seams of a large storage tank, comprising: a support base placed at the bottom side of the large storage tank; an assembly seat fittingly inserted into the upper end surface of the support base, and the support base and the assembly seat are fixedly connected into an integral structure; a transmission mechanism penetrating between the support base and the assembly seat; a support assembly installed at the end of the transmission mechanism, and the support assembly can generate structural changes along with the operation of the transmission mechanism; this support device for preventing deformation at the large-angle seams of a large storage tank uses an adjustable support structure to support the large storage tank, facilitating the support assembly work of the large storage tank. By using a combination of clamping and supporting to support the large storage tank, the force-bearing position of the large storage tank is no longer concentrated at the welded large-angle seams of the large storage tank, but is dispersed at the bottom and the body of the tank.

Description

Technical Field

[0001] The invention relates to the technical field of development of anti-deformation support structure forms at large angle joints of large storage tanks, in particular to a support device for preventing deformation of large angle joints of large storage tanks. Background Art

[0002] Large storage tanks refer to large containers for storing crude oil or other petroleum products with a capacity of more than 100 cubic meters, which are composed of tank walls, tank tops, tank bottoms and tank accessories. Large storage tanks are containers for storing oil products. They are the main equipment of oil depots and are mainly used in refineries, oil fields, oil depots and other industries. However, serious welding deformation of large angle seams at the bottom of the tank will reduce the bearing capacity and stability of large storage tanks, and even make the bottom plate of the tank scrapped. Therefore, the tank bottom is the key part of the entire storage tank, which is related to the quality of the entire storage tank manufacturing and installation. There are still serious deficiencies in the existing large storage tanks for large angle seam welding. For example, after the large angle seam welding is completed, there is a lack of reasonable support structure;

[0003] The existing supporting points of large storage tank support structures are located at the bottom of the tank, which will cause the tank bottom to excessively support all the gravity of the large storage tank. Most of the stress will fall on the large angle seam annular connection between the tank body and the tank bottom, which can easily cause the fragile structure of the welded large angle seam to be damaged. In addition, wind and sun exposure will make it more likely to cause leakage problems in large storage tanks.

[0004] Therefore, a supporting device is needed to prevent deformation of large angle seams of large storage tanks to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a support device for preventing deformation of large angle seams of large storage tanks, thereby solving the problem that the support point of the existing large storage tank support structure is located at the bottom of the tank, which will cause the tank bottom to excessively concentrate on supporting all the gravity of the large storage tank. Most of the stress will fall on the annular connection of the large angle seam between the tank body and the tank bottom, which can easily cause the fragile structure of the welded large angle seam to be damaged by stress. In addition, wind and sun exposure will make it more likely to cause leakage problems in large storage tanks.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A support device for preventing large-angle seams of large storage tanks from deforming, comprising:

[0009] A support base, which is placed on the bottom side of the large storage tank;

[0010] An assembly seat, the assembly seat is fitted and inserted into the upper end surface of the support base, and the support base and the assembly seat are fixedly connected to form an integrated structure;

[0011] A transmission mechanism, which is disposed through between a support base and an assembly seat;

[0012] A support assembly, which is installed at the end of the transmission mechanism, and the support assembly can generate structural changes along with the operation of the transmission mechanism;

[0013] A connecting plate, which is disposed at the upper driving end of the support assembly, so that the support assembly can drive the connecting plate to move linearly towards the axis of the support device;

[0014] A first support plate, which is detachably assembled inside the connecting plate, so that the first support plate can drive the connecting plate to move to enclose a receiving space for clamping large storage tanks of different sizes;

[0015] A second support plate, which is hingedly connected to the first support plate, and the second support plate can be supported by the lower driving end of the support assembly, so that the second support plate can support the bottom side of the large storage tank;

[0016] A flexible member, which is disposed to connect between the first support plate and the second support plate, and the flexible member is in contact with the large corner joint of the large storage tank;

[0017] A protective shell, which is embedded between the support base and the assembly seat, so that the transmission mechanism and the support assembly can both be covered inside the protective shell.

[0018] Adopting the above technical solution, it facilitates the support assembly work of large storage tanks, and uses a combination of clamping and supporting to support large storage tanks, which makes the force-bearing positions of large storage tanks no longer concentrated at the welded large corner joints of large storage tanks, but dispersed at the bottom and the body of the tank.

[0019] Preferably, the transmission mechanism includes:

[0020] A large gear ring, which is clamped and limited between the support base and the assembly seat, and the large gear ring can rotate circularly along the outer periphery of the support base. Slip rings are arranged on both sides of the large gear ring, and the two slip rings are respectively adapted to the concave ring structures on the adjacent sides of the support base and the assembly seat;

[0021] Connecting shafts, which are equidistantly distributed outside the large gear ring, and the connecting shafts are all in transmission connection with the large gear ring. The bottom ends of the connecting shafts are inserted into the end face circular grooves of the support base. A small gear that is in meshing connection with the large gear ring is fixedly sleeved in the middle of the connecting shafts. The top ends of the connecting shafts pass through the assembly seat and are fixedly connected with driving bevel gears. Among them, the bottom ends of at least one of the connecting shafts pass through the support base.

[0022] With the above technical solution, the structure of the supporting device is streamlined. When installing a large storage tank, there is no need to support the large storage tank side by side, the assembly is simpler, the operation efficiency is higher, and it can be commonly used for large storage tanks with similar sizes, avoiding the manufacturing cost of making specific supporting devices.

[0023] Preferably, the support assembly includes:

[0024] A translation slide, the translation slides are arranged equidistantly around the axis of the supporting device, and the translation slides are restricted to move linearly along the radial chute formed by the splicing of the supporting base and the assembly seat, and a support rod is hingedly connected between the translation slide and the adjacent second support plate;

[0025] Driving members, the driving members are distributed equidistantly on the outer edge of the assembly seat.

[0026] With the above technical solution, the stress area is enlarged, and the threaded driving method has a self-locking function. The stress is concentrated in the threaded hole, and the installation accident will not occur due to the failure of the power equipment.

[0027] Preferably, the support assembly further includes:

[0028] A translation carriage, the translation carriage is arranged on one side of the driving member and moves along the track of the translation slide; a driven member, the driven member is arranged on the assembly seat to maintain a parallel transmission relationship with the driving member.

[0029] With the above technical solution, the load of the tank body structure on the tank bottom is reduced, and further the stress on the large fillet weld is reduced. Moreover, in the friction transmission method, after the large storage tank is clamped, the driving member can still operate without affecting the support of the bottom of the large storage tank.

[0030] Preferably, a driven bevel gear is installed at one end of the driving member, the driven bevel gear is meshed with a driving bevel gear for transmission, and a driving friction wheel is sleeved on the outer periphery of the driven bevel gear. The other end of the driving member is threadedly driven with a translation slide;

[0031] With the above technical solution, the transmission direction is changed. Driving a single connecting shaft can drive the transmission structure of the large gear ring and all connecting shafts to operate, streamlining the structure of the supporting device.

[0032] Preferably, a driven friction wheel is fixedly connected to one end of the driven member, and the driven friction wheel and the driving friction wheel are in friction transmission. The other end of the driven member is threadedly connected to the translation carriage, and a connecting plate is fixedly connected to one end of the translation carriage;

[0033] With the above technical solution, in the friction transmission method, after the large storage tank is clamped, the driving member can still operate without affecting the support of the bottom of the large storage tank.

[0034] Preferably, the cross-section of the support base is a double-layer stepped symmetric structure. A plurality of nail holes are provided on the outer edge of the support base, and a plurality of first linear grooves are provided on the inner edge of the support base. The assembly seat is adapted to the upper structure of the support base, and a second linear groove is provided on the assembly seat corresponding to the first linear groove. The first linear groove and the second linear groove are combined to form a linear chute structure.

[0035] By adopting the above technical solution, the first linear groove and the second linear groove can be combined into a linear chute structure, so that the translation slide and the translation slide frame can move along a straight line, and the assembly is convenient.

[0036] Preferably, the protective shell is designed in a ring structure. Protrusion blocks are provided on both the inner and outer edges of the protective shell, and the protrusion blocks are respectively arranged corresponding to the concave groove structures on the outer periphery of the assembly seat and the end face of the support base.

[0037] By adopting the above technical solution, the installation process of the protective shell can be facilitated, and the protective shell can play a role in protecting the internal components.

[0038] Preferably, anti-slip ridges are provided on the inner walls of the first support plate and the second support plate. Among them, the first support plate is designed in an arc shape, and the second support plate is designed in a fan shape.

[0039] By adopting the above technical solution, the friction between the first support plate and the second support plate and the outer wall of the large storage tank can be enhanced, and the large storage tank can be prevented from being easily loosened.

[0040] Preferably, a plurality of openings are provided on one side of the connecting plate, and a plurality of countersunk holes are provided on the inner wall of the first support plate corresponding to the openings.

[0041] By adopting the above technical solution, the loading and unloading process of the first support plate can be greatly facilitated, so that the first support plate and the second support plate can be replaced and used.

[0042] (III) Beneficial effects

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows: The support device for preventing the deformation of the large-angle seam of the large storage tank adopts an adjustable support structure to support the large storage tank, which facilitates the support assembly work of the large storage tank. The large storage tank is supported by a combination of clamping and supporting, so that the stress position of the large storage tank is no longer concentrated at the welded large-angle seam of the large storage tank, but is dispersed at the bottom and the body of the tank:

[0044] 1. By providing a large gear ring and connecting shafts distributed on the outer periphery of the large gear ring, driving a single connecting shaft can drive the transmission structure of the large gear ring and all connecting shafts, streamlining the structure of the support device. When installing a large storage tank, it is not necessary to support the large storage tank side by side, the assembly is simpler, the operation efficiency is higher, and it can be commonly used for large storage tanks with similar sizes, avoiding the manufacturing cost of making specific support devices;

[0045] 2. Through the connecting shaft transmission driving member, the driving member drives the translation slide by means of threads, which enables multiple translation slides to approach each other and reduce the spacing, so that the second support plate can support from the bottom of the large storage tank, expanding the force-bearing area. Moreover, the way of thread driving has a self-locking function, and the force is concentrated in the threaded holes, preventing the occurrence of installation accidents due to power equipment failures;

[0046] 3. Through the driving member frictionally driving the follower member, the follower member drives the translation carriage by means of threads, which enables multiple translation carriages to approach each other and reduce the spacing, so that the first support plate can clamp the position of the tank body, reducing the load of the tank body structure on the tank bottom, and further reducing the force on the large fillet weld. Moreover, the way of friction drive allows the driving member to still operate after the large storage tank is clamped, without affecting the support of the bottom of the large storage tank;

[0047] 4. By providing a flexible member, the load at the large fillet weld can be dispersed to the first support plate and the second support plate, thus avoiding the situation of excessive local force at the large fillet weld, preventing leakage at the large fillet weld of the large storage tank, and ensuring storage safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following describes the preferred embodiments of the present invention in detail in conjunction with the drawings.

[0049] Figure 1 It is a sectional view of a support device for preventing deformation at the large fillet weld of a large storage tank according to the present invention;

[0050] Figure 2 It is a sectional elevation view of a support device for preventing deformation at the large fillet weld of a large storage tank according to the present invention;

[0051] Figure 3 It is a support device for preventing deformation at the large fillet weld of a large storage tank according to the present invention Figure 2 The enlarged structural schematic diagram of point A in;

[0052] Figure 4 It is a support device for preventing deformation at the large fillet weld of a large storage tank according to the present invention Figure 2 The enlarged structural schematic diagram of point B in;

[0053] Figure 5 Distribution diagram of the large gear ring and small gear in the support device for preventing deformation at the large corner joint of a large storage tank according to the present invention;

[0054] Figure 6 Connection position diagram of the connecting plate in the support device for preventing deformation at the large corner joint of a large storage tank according to the present invention;

[0055] Figure 7 Schematic diagram of the support device for preventing deformation at the large corner joint of a large storage tank according to the present invention;

[0056] Figure 8 Structural diagram of the driving member in the support device for preventing deformation at the large corner joint of a large storage tank according to the present invention.

[0057] Legend: 1. Support base; 101. Nail hole; 102. First linear groove; 2. Assembly seat; 201. Second linear groove; 3. Transmission mechanism; 301. Large gear ring; 3011. Slip ring; 302. Connecting shaft; 3021. Small gear; 3022. Driving bevel gear; 4. Support assembly; 401. Translation slide; 4011. Support rod; 402. Driving member; 4021. Driven bevel gear; 4022. Active friction wheel; 403. Translation carriage; 404. Driven member; 4041. Passive friction wheel; 5. Connecting plate; 501. Opening; 6. First support plate; 601. Countersunk head hole; 7. Second support plate; 8. Flexible member; 9. Protective shell; 901. Protruding block. Detailed implementation manners

[0058] 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 making creative efforts belong to the scope of protection of the present invention. In addition, for the convenience of description below, the "upper", "lower", "left", "right", etc. cited are consistent with the upper, lower, left, right, etc. of the accompanying drawings themselves. The "first", "second", etc. in the following text are for distinction in description and have no other special meanings.

[0059] In view of the problems existing in the prior art, the present invention provides a support device for preventing deformation at the large corner joint of a large storage tank, as Figures 1 - 8As shown in the figure, it includes: a support base 1, which is placed at the bottom side of a large storage tank; an assembly seat 2, which is fitted and inserted on the upper end surface of the support base 1, and the support base 1 and the assembly seat 2 are fixedly connected into an integral structure; a transmission mechanism 3, which is arranged through between the support base 1 and the assembly seat 2; a support assembly 4, which is installed at the end of the transmission mechanism 3, and the support assembly 4 can generate structural changes along with the operation of the transmission mechanism 3; a connecting plate 5, which is arranged at the upper driving end of the support assembly 4, so that the support assembly 4 can drive the connecting plate 5 to move linearly towards the axis of the support device; a first support plate 6, which is detachably assembled inside the connecting plate 5, so that the first support plate 6 can drive the connecting plate 5 to move to enclose a receiving space for clamping large storage tanks of different sizes; a second support plate 7, which is hinged to the first support plate 6, and the second support plate 7 can be supported by the lower driving end of the support assembly 4, so that the second support plate 7 can support the bottom side of the large storage tank; a flexible member 8, which is arranged to connect between the first support plate 6 and the second support plate 7, and the flexible member 8 is in contact with the large corner joint of the large storage tank; a protective shell 9, which is embedded between the support base 1 and the assembly seat 2, so that the transmission mechanism 3 and the support assembly 4 can be covered inside the protective shell 9. A small gear 3021 and a large gear ring 301 are clamped and limited between the assembly seat 2 and the support base 1. During assembly, first install the small gear 3021 and the large gear ring 301 on the support base 1, and then buckle the assembly seat 2 at the end of the support base 1, and fix the assembly seat 2 and the support base 1 into an integral body by welding or screwing; the flexible member 8 avoids the situation of excessive local stress at the large corner joint, can prevent leakage at the large corner joint of the welded large storage tank, and ensures storage safety; the first support plate 6 plays a role of clamping and fixing, and the second support plate 7 plays a role of supporting, which can disperse the force received by the large storage tank and has strong adjustability.

[0060] As Figures 2 - 3As shown, the transmission mechanism 3 includes: a large toothed ring 301, which is clamped and limited between the support base 1 and the assembly seat 2, and the large toothed ring 301 can circulate along the outer periphery of the support base 1, and both sides of the large toothed ring 301 are provided with slip rings 3011, and the two slip rings 3011 are respectively adapted to the concave ring structures on the adjacent sides of the support base 1 and the assembly seat 2; connecting shafts 302, which are equidistantly distributed on the outside of the large toothed ring 301, and the connecting shafts 302 are all transmission-connected with the large toothed ring 301, and the connecting shafts 30 The bottom end of the connecting shaft 302 is inserted into the end face circular groove of the supporting base 1, the middle part of the connecting shaft 302 is fixedly sleeved with a small gear 3021 which is in meshing connection with the large gear ring 301, and the top end of the connecting shaft 302 passes through the assembly seat 2 and is fixedly connected with a driving bevel gear 3022, wherein the bottom end of at least one of the connecting shafts 302 passes through the supporting base 1, and one of the connecting shafts 302 is driven to rotate by the output shaft of the external motor, then the small gear 3021 meshes with the large gear ring 301, and the large gear ring 301 then continues to drive the remaining small gears 3021 to rotate.

[0061] like Figure 2 and Figure 3 As shown, the support assembly 4 includes: a translation slide 401, which is equidistantly arranged around the axis of the support device, and the translation slide 401 is limited to move linearly along the radial slide groove composed of the support base 1 and the assembly seat 2, and a support rod 4011 is hingedly connected between the translation slide 401 and the adjacent second support plate 7; a driving member 402, which is equidistantly distributed on the outer edge of the assembly seat 2, and a driven bevel gear 4021 is installed at one end of the driving member 402, and the driven bevel gear The wheel 4021 is meshed with the driving bevel gear 3022 for transmission, and the outer periphery of the driven bevel gear 4021 is also sleeved with an active friction wheel 4022, and the other end of the driving member 402 is threadedly driven with a translation slide 401, the driving bevel gear 3022 drives the driven bevel gear 4021 to turn and rotate, the driven bevel gear 4021 drives the driving member 402 to rotate, the driving member 402 thread drives the translation slide 401 to move in a straight line, and the translation slide 401 drives the support rod 4011 to lift the second support plate 7 to achieve angle adjustment.

[0062] like Figure 2 and Figure 3As shown, the support assembly 4 further includes: a translation carriage 403, which is arranged on one side of the driving member 402 and moves along the track of the translation stage 401; a driven member 404, which is arranged on the mounting seat 2 to maintain a parallel transmission relationship with the driving member 402. One end of the driven member 404 is fixedly connected with a passive friction wheel 4041, and the passive friction wheel 4041 is in frictional transmission with the active friction wheel 4022. The other end of the driven member 404 is threadedly connected to the translation carriage 403. One end of the translation carriage 403 is fixedly connected with a connecting plate 5. The active friction wheel 4022 drives the passive friction wheel 4041 to rotate, the passive friction wheel 4041 drives the driven member 404 to rotate, and the driven member 404 then drives the translation carriage 403 to move along the track of the translation stage 401 by means of threading.

[0063] As Figure 1 and Figure 2As shown, the cross-section of the support base 1 is a double-layer stepped symmetric structure. A number of nail holes 101 are provided on the outer edge of the support base 1, and a number of first linear grooves 102 are provided on the inner edge of the support base 1. The assembly base 2 is adapted to the upper structure of the support base 1, and a second linear groove 201 is provided on the assembly base 2 corresponding to the first linear groove 102. The first linear groove 102 and the second linear groove 201 are combined to form a linear sliding groove structure. The cross-sections of the first linear groove 102 and the second linear groove 201 are both in a "T" shape structure, and their sizes are the same, so that the translation carriage 403 and the translation slide 401 slide along a straight line. The protective shell 9 is designed in a ring structure. Protrusion blocks 901 are provided on both the inner and outer edges of the protective shell 9. The protrusion blocks 901 are respectively provided corresponding to the concave groove structures on the outer periphery of the assembly base 2 and the end face of the support base 1. After the protective shell 9 is extruded and deformed, the protrusion blocks 901 can be respectively embedded into the concave groove structures on the outer periphery of the assembly base 2 and the end face of the support base 1, so that the protective shell 9 can be fully fixed. It is worth mentioning that there are multiple concave groove structures, and the advantage of this is that the protective shell 9 also plays a connecting role, so that the support base 1 and the assembly base 2 will not rotate relative to each other. Anti-slip ridges are provided on the inner walls of both the first support plate 6 and the second support plate 7. Among them, the first support plate 6 is designed in an arc shape, and the second support plate 7 is designed in a fan shape structure. The first support plate 6 can be enclosed into a circular ring structure, and the second support plate 7 can be enclosed into a circular block structure, respectively playing the roles of clamping and supporting. A number of through holes 501 are provided on one side of the connecting plate 5, and a number of counterbore holes 601 are provided on the inner wall of the first support plate 6 corresponding to the through holes 501. By passing bolts through the through holes 501 and the counterbore holes 601 and then tightening nuts in the counterbore holes 601, the first support plate 6 can be replaced and fixed. It is worth mentioning that both hinge structures of the second support plate 7 adopt the method of inserting bolts. The advantage of this is that the first support plate 6 and the second support plate 7 can be easily replaced. Those skilled in the art can understand that the drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the drawings are not necessarily essential for implementing the present invention.

[0064] Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be correspondingly changed and located in one or more devices different from this implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0065] The above-disclosed are only specific implementation scenarios of the present invention. However, the present invention is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A support device for preventing deformation at the large-angle seams of a large storage tank, characterized in that, Comprising: A support base (1), which is placed at the bottom side position of a large storage tank; An assembly seat (2), which is fitted and inserted on the upper end surface of the support base (1), and the support base (1) and the assembly seat (2) are fixedly connected into an integral structure; A transmission mechanism (3), which is arranged through between the support base (1) and the assembly seat (2); A support component (4), which is installed at the end of the transmission mechanism (3), and the support component (4) can generate structural changes along with the operation of the transmission mechanism (3); A connecting plate (5), which is arranged at the upper driving end of the support component (4), so that the support component (4) can drive the connecting plate (5) to move linearly towards the axis of the support device; A first support plate (6), which is detachably assembled inside the connecting plate (5), so that the first support plate (6) can drive the connecting plate (5) to move to enclose a receiving space for clamping large storage tanks of different sizes; A second support plate (7), which is hingedly connected to the first support plate (6), and the second support plate (7) can be supported by the lower driving end of the support component (4), so that the second support plate (7) can support the bottom side of the large storage tank; A flexible member (8), which is arranged and connected between the first support plate (6) and the second support plate (7), and the flexible member (8) is in contact with the large angle joint of the large storage tank; A protective shell (9), which is embedded between the support base (1) and the assembly seat (2), so that the transmission mechanism (3) and the support component (4) can both be covered inside the protective shell (9); Wherein, the support component (4) includes: A translation slide (401), which is arranged equidistantly around the axis of the support device, and the translation slide (401) is restricted to linearly move along the radial chute formed by the splicing of the support base (1) and the assembly seat (2), and a support rod (4011) is hingedly connected between the translation slide (401) and the adjacent second support plate (7); A driving member (402), which is distributed equidistantly on the outer edge of the assembly seat (2); The support component (4) further includes: A translation slide frame (403), which is arranged on one side of the driving member (402) and moves along the track of the translation slide (401); A driven member (404), which is arranged on the assembly seat (2) to maintain a parallel transmission relationship with the driving member (402); One end of the driving member (402) is installed with a driven bevel gear (4021), the driven bevel gear (4021) is meshed and driven with a driving bevel gear (3022), and an active friction wheel (4022) is also sleeved on the outer periphery of the driven bevel gear (4021), and the other end of the driving member (402) is threaded to drive the translation slide (401); One end of the driven member (404) is fixedly connected with a driven friction wheel (4041), and the driven friction wheel (4041) is in frictional transmission with the driving friction wheel (4022). The other end of the driven member (404) is in threaded connection with the translation carriage (403), and one end of the translation carriage (403) is fixedly connected with a connecting plate (5).

2. The supporting device for preventing deformation at the large-angle seams of a large storage tank according to claim 1, characterized in that, The transmission mechanism (3) includes: A large gear ring (301) which is clamped and limited between the support base (1) and the assembly seat (2), and the large gear ring (301) can rotate circularly along the outer periphery of the support base (1). Slide rings (3011) are arranged on both sides of the large gear ring (301), and the two slide rings (3011) respectively fit the concave ring structures on the adjacent sides of the support base (1) and the assembly seat (2). Connecting shafts (302) which are equidistantly distributed on the outer side of the large gear ring (301), and the connecting shafts (302) are all in transmission connection with the large gear ring (301). The bottom ends of the connecting shafts (302) are inserted into the end face circular grooves of the support base (1). A small gear (3021) which maintains a meshing connection relationship with the large gear ring (301) is fixedly sleeved on the middle parts of the connecting shafts (302). The top ends of the connecting shafts (302) pass through the assembly seat (2) and are fixedly connected with driving bevel gears (3022). Among them, the bottom end of at least one connecting shaft (302) passes through the support base (1).

3. A support device for preventing deformation at the large-angle seams of a large storage tank according to claim 1, characterized in that, The cross section of the support base (1) is of a double-layer stepped symmetric structure. A plurality of nail holes (101) are arranged on the outer edge of the support base (1), and a plurality of first linear grooves (102) are arranged on the inner edge of the support base (1). The assembly seat (2) fits the upper layer structure of the support base (1), and second linear grooves (201) corresponding to the first linear grooves (102) are arranged on the assembly seat (2). The first linear grooves (102) and the second linear grooves (201) are combined to form a linear sliding groove structure.

4. A support device for preventing deformation at the large-angle seams of a large storage tank as described in claim 1, characterized in that, The protective shell (9) is designed in a ring structure. Raised blocks (901) are arranged on both the inner and outer edges of the protective shell (9), and the raised blocks (901) are respectively arranged corresponding to the recessed groove structures on the outer periphery of the assembly seat (2) and the end face of the support base (1).

5. A support device for preventing deformation at the large-angle seams of a large storage tank according to claim 1, characterized in that: Anti-slip ridges are arranged on the inner walls of the first support plate (6) and the second support plate (7). Among them, the first support plate (6) is designed in an arc shape, and the second support plate (7) is designed in a fan shape.

6. The supporting device for preventing deformation at the large-angle seams of a large storage tank according to claim 1, characterized in that: A plurality of through holes (501) are arranged on one side of the connecting plate (5), and a plurality of counterbore holes (601) are arranged on the inner wall of the first support plate (6) corresponding to the through holes (501).

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