A double webbed frame low stress conformal transfer device and method thereof

Abstract

The application provides a double-webbed-rib structure low-stress conformal transfer device and a method thereof. The device comprises an outer frame, a lifting lug, a fixed rod connecting hole, a lower end web support, an upper end web support and a fixed rod. The outer frame comprises a vertical plate and a circular ring. The fixed rod connecting hole is arranged in a circumferential array in the radial direction of the vertical plate and is distributed in the axial direction of the vertical plate. The lower end web support is arranged in a circumferential array in the radial direction of the circular ring and is uniformly distributed and corresponds to the arrangement position of the fixed rod connecting hole. The upper end web support is a threaded structure, is arranged in a circumferential array in the radial direction of the circular ring and is adjusted in height through internal and external threads. The support is arranged between the lower end web and the upper end web, is uniformly distributed and corresponds to the arrangement position of the lower end web support, is provided with a bolt hole in the middle of the upper end web support. One end of the fixed rod penetrates through the bolt hole on the upper end web support, abuts against the panel of the double-webbed-rib structure cylinder and the other end penetrates through the fixed rod connecting hole on the vertical plate and is connected with the vertical plate. The lifting lug is arranged in a circumferential array at the top end of the vertical plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of double web frame, in particular to a double web frame structure low stress conformal transfer device and method thereof. BACKGROUND

[0002] In the manufacturing process of pressure vessel structure, the transfer of double web frame of various sizes is often involved. Due to the large diameter of the double web frame structure, the maximum diameter can reach nearly 10 meters, the web is long, the longest can reach nearly 2 meters, and the double web frame structure itself is weak in rigidity in the construction of hoisting and other operations. The precision requirement of the double web frame structure itself is high, the diameter and web perpendicularity deviation reaches millimeter level, and after production, the web end face needs to be machined and transferred to multiple process stations. If effective conformal transfer measures are not taken, there is a great risk of deformation during transfer.

[0003] When transferring traditionally, there are usually two methods, one is to weld lifting lugs on the face plate of the double web frame structure with excess amount, and the other is to clamp the web of the double web frame structure by a clamp.

[0004] However, the present inventors found at least the following technical problems in the process of implementing the technical solutions of the embodiments of the present application:

[0005] Both of the above methods directly apply lifting force to a certain point on the double web frame structure, which can cause stress increase in a certain local part of the double web frame structure, and may even cause lifting deformation in severe cases. Meanwhile, the double web frame structure needs to be fitted and welded to the cylindrical structure of the pressure vessel, and the double web frame structure itself and the web after welding require high perpendicularity, which puts higher requirements on lifting and needs to control the lifting deformation of the two webs in the double web frame structure.

[0006] Therefore, how to reduce the lifting stress of the double web frame structure of the pressure vessel and control the lifting deformation, and further improve the manufacturing precision and quality of the pressure vessel structure has become an urgent problem. SUMMARY

[0007] In order to solve the problems existing in the prior art, in view of the problem of controlling the lifting deformation of the double web frame structure, the embodiments of the present application provide a double web frame structure low stress conformal transfer device and method thereof. The method uses a double web frame structure low stress conformal transfer device, sets a lower web support and an adjustable upper web support, and is free of welding and fixing on the double web frame structure, which effectively reduces the risk of deformation during transfer of the double web frame structure, effectively improves the construction precision and quality of the double web frame structure, and solves the technical problem of lifting deformation of the double web frame structure.

[0008] The solution adopted by the embodiments of the present application to solve the technical problems is as follows:

[0009] A low-stress conformal transfer device of double-webbed frame structure, the double-webbed frame structure comprising a lower end web, an upper end web and a cylinder, the lower end web and the upper end web being sequentially sleeved on the cylinder;

[0010] The double-webbed frame structure low-stress conformal transfer device comprises an outer frame, an ear, a fixed rod connecting hole, a lower end web support, an upper end web support and a fixed rod;

[0011] The outer frame is a cylinder structure with a half-enclosed bottom, comprising a vertical plate and a circular ring, and is used for accommodating the double-webbed frame structure; the circular ring is arranged at the bottom of the cylinder body and is used for supporting the double-webbed frame structure;

[0012] The fixed rod connecting hole is a through hole structure, is arranged in a circumferential array in the radial direction of the vertical plate, is arranged in a distribution in the axial direction of the vertical plate, and is distributed at intervals of 45° in the circumferential direction.

[0013] The lower end web support is an inner-outer threaded lifting structure, is arranged in a circumferential array in the radial direction of the circular ring, is distributed at intervals of 45° in the circumferential direction, and the positions at the intervals correspond to the positions of the fixed rod connecting holes; the lower part of the lower end web support is an inner threaded structure, the upper part is an outer threaded structure, the height is adjusted through the threaded lifting, and the lower end web support is supported on the bottom surface of the lower end web of the double-webbed frame structure.

[0014] The upper end web support is a threaded structure for adjusting the height of the upper end and the lower end, is arranged in a circumferential array in the radial direction of the circular ring, is distributed at intervals of 45° in the circumferential direction, and the height is adjusted through the inner-outer threads; the upper end web support is supported between the lower end web and the upper end web, the positions at the intervals correspond to the positions of the lower end web support, the lower end web and the upper end web are supported at the same positions, and a bolt hole is arranged in the middle of the upper end web support.

[0015] The fixed rod is a threaded shaft provided with a protruding head, penetrates the bolt hole in the upper end web support at one end, abuts against the panel of the cylinder of the double-webbed frame structure, and is connected with the vertical plate at the other end through the fixed rod connecting hole.

[0016] The ear is arranged in a circumferential array at the top end of the vertical plate and is used for connecting a sling.

[0017] In the radial direction, the lower end web support, the upper end web support and the fixed rod correspond to each other and are collinear in the axial direction, uniform stress points are applied to the lower end web and the upper end web, and the risk of deformation of the double-webbed frame structure is reduced; the upper end web support is fixed in position without welding, and the ear is arranged at the top of the vertical plate of the outer frame.

[0018] In a preferred embodiment, the vertical plate of the outer frame is provided with manholes arranged in a circumferential array, and the manholes are staggered with the fixed rod connecting holes.

[0019] In a preferred embodiment, the fixed rod connecting holes are distributed at intervals of 45° in the circumferential direction on the vertical plate, and the total number of the fixed rod connecting holes is eight, and each column is provided with five fixed rod connecting holes.

[0020] In the preferred embodiment, the upper end of the upper end web support is provided with a hard rubber or copper plate in contact with the bottom surface of the lower end web of the double webbed rib structure.

[0021] In the preferred embodiment, the upper end web support comprises a base, an adjusting nut and a top seat.

[0022] The base is a boss structure with its bottom resting on the top surface of the lower end web, and an external thread is provided on the boss.

[0023] The top seat is also a boss structure with its top in contact with the bottom surface of the upper end web, and an external thread is provided on the boss, and the external thread of the top seat is in the opposite direction of the external thread of the base.

[0024] The adjusting nut is a long nut with a hollow slot in the middle, and the internal threads at both ends of the adjusting nut are in opposite directions. When the adjusting nut is screwed with the base and the top seat respectively, the base and the top seat will rise and fall with the adjusting nut. A radial through hole is provided in the middle of the adjusting nut for assembling the fixing rod.

[0025] In the preferred embodiment, a rubber plate is provided on the top seat of the upper end web support to form a flexible contact at the position where the top seat of the upper end web support is in contact with the bottom surface of the upper end web.

[0026] In the preferred embodiment, the lifting lugs are evenly distributed at 90° on the vertical plate, and the total number is four.

[0027] In order to further solve the technical problems to be solved in the embodiments of the present application, a double webbed rib structure low stress conformal transfer method is provided, which applies a double webbed rib structure low stress conformal transfer device, comprising the following steps:

[0028] Step one, according to the diameter and height of the double webbed rib structure, select the appropriate conformal transfer device for transfer; adjust the height of the lower end web support on the semi-sealing structure of the conformal transfer device before formal use;

[0029] Step two, mark the four hearts of the cylinder of the double webbed rib structure, hoist the double webbed rib structure to the device, when the distance is about 200mm, confirm the accurate alignment of the four hearts of the double webbed rib structure with the lower end web support, then lower the double webbed rib structure to ensure that the four hearts of the double webbed rib structure are effectively supported; the four hearts include upper heart, lower heart, left heart and right heart, which are the positioning reference for subsequent sleeving and assembling of the double webbed rib structure;

[0030] Step three, accurately adjust the lower end web support through the manhole and effectively support the lower end web, at the same time, arrange the upper end web support on the vertical and collinear position with the lower end web support space through the manhole, and adjust the height.

[0031] Step four, the fixed rod is inserted through the bolt hole in the middle of the upper end web support device and abuts against the panel of the double webbed rib structure, and is connected and fixed through the fixed rod connecting hole on the vertical plate of the outer frame. A rubber plate is inserted into the top of the upper end web support to fix the upper end web support device.

[0032] Step five, appropriate lifting slings are selected according to the weight of the double webbed rib structure, the lengths of the lifting slings are ensured to be the same, the lifting slings are connected with the lifting lugs, the connection is checked before formal lifting, the double webbed rib structure is checked when it is lifted by about 300 mm for the first time, and the cylinder four-core protection and the cylinder horizontal posture are checked to be normal, and then the double webbed rib structure is transported.

[0033] Active effects, the technical scheme provided in the embodiments of the present application has at least the following technical effects or advantages:

[0034] 1. Since the embodiments of the present application adopt the technical means of circumferential array of lifting lugs at the top end of the vertical plate and the upper end web support in the case of free welding, the double webbed rib structure panel is free of welding, local stress rise and lifting deformation hidden danger are avoided, the technical problem of low stress shape preserving transportation of the double webbed rib structure in the prior art is effectively solved, and the technical effect of eliminating the adverse effects of deformation or performance reduction of the double webbed rib structure caused by welding is realized.

[0035] 2. Since the embodiments of the present application adopt the technical means of the lower end web support, the upper end web support and the fixed rod in the radial corresponding and axial collinear state, the uniform stress points on the lower end web and the upper end web correspond to each other, the technical problem of low stress shape preserving transportation of the double webbed rib structure in the prior art is effectively solved, the web perpendicularity of the double webbed rib structure is effectively ensured, the deformation risk of the double webbed rib structure is reduced, and the technical effect of ensuring the assembly accuracy of the double webbed rib structure is realized.

[0036] 3. Since the embodiments of the present application adopt the technical means that one end of the fixed rod penetrates through the bolt hole on the upper end web support and abuts against the panel of the cylinder of the double webbed rib structure, and the other end penetrates through the fixed rod connecting hole and is connected with the vertical plate, the upper end web support is fixed and limited in the case of free welding, the technical problem of low stress shape preserving transportation of the double webbed rib structure in the prior art is effectively solved, the upper end web support is firmly clamped and has no risk of loosening and slipping, and the technical effect of high operation safety is realized.

[0037] 4. Due to the technical means that the outer thread of the top base is opposite to the outer thread of the bottom base, and the inner thread of the adjusting nut is opposite to the inner thread of the adjusting nut, when the adjusting nut is screwed with the bottom base and the top base respectively, the bottom base and the top base are lifted with the adjusting nut, which effectively solves the technical problem of low stress conformal transfer of the double web rib structure in the prior art, effectively ensures the web perpendicularity of the double web rib structure, reduces the deformation risk of the double web rib structure, and further realizes the technical effect of ensuring the assembly precision of the double web rib structure.

[0038] Suitable as a double web rib structure low stress conformal transfer device and method. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0040] Figure 1 It is a schematic diagram of double web rib structure;

[0041] Figure 2 It is a schematic diagram of the structure of the present embodiment;

[0042] Figure 3 It is a schematic diagram of the working state of the present embodiment;

[0043] Figure 4 It is a schematic diagram of the main view of the upper end web support structure;

[0044] Figure 5 It is a schematic diagram of the upper end web support structure from the top.

[0045] In the figure:

[0046] 0. Double web rib structure, 01. Lower end web, 02. Upper end web, 03. Cylinder,

[0047] 1. Outer frame, 11. Vertical plate, 111. Lightened hole, 12. Circular ring,

[0048] 2. Lifting lug,

[0049] 3. Fixed rod connecting hole,

[0050] 4. Lower end web support,

[0051] 5. Upper end web support, 51. Bottom base, 52. Adjusting nut, 53. Top base,

[0052] 6. Fixed rod. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0054] The embodiments of the present application solve the problem that double-web rib structures are prone to deformation during lifting applications in the prior art by providing a low-stress conformal transfer device and method for a double-web rib structure. In a low-stress conformal transfer device for a double-web rib structure, lower-end web supports, upper-end web supports and fixing rods are radially corresponding and axially collinear, and uniform force points are applied to the lower-end web and the upper-end web to reduce the risk of deformation of the double-web rib structure. A lifting lug is provided on the top of the vertical plate of the outer frame, which solves the problem of no welding on the double-web rib structure panel, thereby achieving the technical effect of avoiding local stress increase and the hidden danger of lifting deformation.

[0055] As shown in the figure, the double-web rib structure 0 includes a lower web 01, an upper web 02 and a cylinder 03; the lower web 01 and the upper web 02 are sequentially mounted on the cylinder 03.

[0056] A low-stress conformal transport device with a double-web rib structure, comprising an outer frame 1, a lifting lug 2, a fixing rod connection hole 3, a lower web support 4, an upper web support 5, and a fixing rod 6;

[0057] The outer frame 1 is a cylindrical structure 03 with a semi-enclosed bottom, including a vertical plate 11 and a circular ring 12. The vertical plate 11 covers the double-web rib structure 0 and is used to accommodate the double-web rib structure 0. The circular ring 12 is provided at the bottom of the cylinder to bear the load of the double-web rib structure 0 and is used to support the double-web rib structure 0.

[0058] The fixing rod connection holes 3 are through-hole structures, arranged in a circumferential array in the radial direction of the vertical plate 11, and arranged and distributed in the axial direction of the vertical plate 11, and evenly distributed every 45° in the circumferential direction;

[0059] The lower end web support 4 is an inner and outer threaded lifting structure, arranged in a circumferential array in the radial direction of the circular ring 12, and evenly distributed at every 45°. The evenly distributed positions correspond to the positions of the fixing rod connecting holes 3. The lower part of the lower end web support 4 is an inner threaded structure, welded to the circular ring 12, and the upper part is an outer threaded structure, with the height adjusted by the threaded lifting structure, supported on the bottom surface of the lower end web 01 of the double-web frame structure 0.

[0060] The upper end web support 5 is a threaded structure with adjustable height, arranged in a circumferential array in the radial direction of the circular ring 12, and evenly distributed at every 45°. The height is adjusted by the inner and outer threads. The upper end web support 5 is supported between the lower end web 01 and the upper end web 02, and the evenly distributed positions correspond to the positions of the lower end web support 4, ensuring that the double-web frame structure 0 is supported at the same position and improving the shape retention effect. A bolt hole is provided in the middle of the upper end web support 5.

[0061] The fixing rod 6 is a threaded shaft with a protruding head, one end of which penetrates the bolt hole in the upper end web support 5 and abuts against the panel of the cylinder 03 of the double-web frame structure 0, and the other end penetrates the fixing rod connecting hole 3 in the upper end web support 5 and is connected to the vertical plate 11. By selecting fixing rod connecting holes 3 of different heights, the upper end web support 5 is fixed without welding.

[0062] The lifting lugs 2 are arranged in a circumferential array at the top of the vertical plate 11, used to connect lifting slings, and then carry the outer frame 1, thereby realizing the lifting and carrying of the double-web frame structure 0. The load borne by the lifting lugs 2 matches the weight of the double-web frame structure 0 being transported.

[0063] In this embodiment, the lower end web support 4, the upper end web support 5, and the fixing rod 6 correspond in the radial direction and are coaxial in the axial direction, and uniformly distributed stress points are applied to the lower end web 01 and the upper end web 02, thereby reducing the risk of deformation of the double-web frame structure 0. The upper end web support 5 is fixed without welding, and the vertical plate 11 of the outer frame 1 is provided with lifting lugs 2 at the top, avoiding the welding of lifting lugs 2 on the panel of the double-web frame structure 0, thereby eliminating the need for welding of the double-web frame structure 0, and solving the problem of local stress increase and the hidden danger of lifting deformation.

[0064] In order to ensure the stability of the structure of the embodiment, the vertical plate 11 of the outer frame 1 is provided with lightening manholes 111 arranged in a circumferential array, which are distributed alternately with the fixing rod connecting holes 3. One is used to reduce the weight of the device, and the other is used to provide a construction space for construction personnel, facilitating the adjustment of the specific position of the upper end web support 5 and the support and fixation.

[0065] In this embodiment, the lightening manholes 111 are evenly distributed at every 45° on the vertical plate 11, and the total number is eight.

[0066] In order to further ensure the stability of the structure of the embodiment, in the embodiment, the fixing rod connecting holes 3 are evenly distributed at 45° on the vertical plate 11, and there are a total of eight columns, each column having five holes.

[0067] In order to optimize the structure of the embodiment, the upper end of the lower end web support 4 is provided with a hard rubber or copper plate in contact with the bottom surface of the lower end web 01 of the double-web frame structure 0, so as to avoid scratching the surface of the lower end web 01 of the double-web frame structure 0.

[0068] In order to further optimize the structure of the embodiment, the upper end web support 5 comprises a base 51, an adjusting nut 52 and a top seat 53.

[0069] The base 51 is a boss structure, and the bottom of the base 51 is located on the top surface of the lower end web 01. An external thread is arranged on the boss.

[0070] The top seat 53 is also a boss structure, and the top of the top seat 53 is in contact with the bottom surface of the upper end web 02. An external thread is arranged on the boss of the top seat 53, and the external thread of the top seat 53 is opposite to the external thread of the base 51 in the spiral direction.

[0071] The adjusting nut 52 is a long nut, and the middle part of the adjusting nut 52 has a hollow groove. The internal threads at both ends of the adjusting nut 52 are opposite in the spiral direction. When the adjusting nut 52 is screwed with the base 51 and the top seat 53 respectively, the base 51 and the top seat 53 are raised and lowered by rotating the adjusting nut 52. A radial through hole is arranged in the middle part of the adjusting nut 52 for assembling the fixing rod 6.

[0072] In the embodiment, the upper end web support 5 is evenly distributed at 45° on the upper end web 02, and there are a total of eight supports.

[0073] In order to further optimize the structure of the embodiment, a rubber plate is arranged on the top seat 53 of the upper end web support 5, so as to form a flexible contact at the position where the top seat 53 of the upper end web support 5 is in contact with the bottom surface of the upper end web 02, thereby enhancing the stability of the support.

[0074] As a conventional technical selection, the lifting lugs 2 are evenly distributed at 90° on the vertical plate 11, and there are a total of four lifting lugs.

[0075] The technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0076] Since the circumferential array of the lifting lugs 2 is limited and fixed at the top end of the vertical plate 11 and the upper end web support 5 is fixed without welding, the panel of the double-web frame structure 0 is free of welding, thereby avoiding local stress increase and lifting deformation hidden danger, and eliminating the adverse effects of welding on the deformation or performance reduction of the double-web frame structure 0.

[0077] Because the lower end web support 4, the upper end web support 5 and the fixed rod 6 are radially corresponding and axially collinear, the uniform stress points on the lower end web 01 and the upper end web 02 correspond to each other, effectively ensuring the web perpendicularity of the double-web frame structure 0, reducing the risk of deformation of the double-web frame structure 0, and ensuring the precision of the assembly of the double-web frame structure 0.

[0078] Because one end of the fixed rod 6 penetrates the bolt hole on the upper end web support 5, abuts against the face plate of the double-web frame structure 0 cylinder 03, and the other end passes through the fixed rod connecting hole 3 on the upper end web support 5 and is connected with the vertical plate 11, the upper end web support 5 is fixed and limited without welding, and the upper end web support 5 is firmly clamped without the risk of loosening and slipping, and the operation safety is high.

[0079] Because the outer thread of the top seat 53 and the outer thread of the base 51 are in opposite directions, and the inner thread of the adjusting nut 52 at both ends is in opposite directions, when the adjusting nut 52 is screwed with the base 51 and the top seat 53 respectively, the base 51 and the top seat 53 are lifted with the adjusting nut 52, effectively ensuring the web perpendicularity of the double-web frame structure 0, reducing the risk of deformation of the double-web frame structure 0, and ensuring the precision of the assembly of the double-web frame structure 0.

[0080] The working process of the embodiment is as follows:

[0081] Taking the double-web frame structure 0 with a hoisted web height of 1.5 meters and a face plate diameter of 8 meters as an example.

[0082] (1) According to the diameter size and height size of the double-web frame structure 0, a suitable shape-preserving transfer device is selected for transfer. Before formal use, the height of the lower end web support 4 on the semi-sealed bottom structure of the shape-preserving transfer device is adjusted. If the height is not suitable, it needs to be adjusted in time.

[0083] (2) Mark the four hearts of the double-web frame structure 0 cylinder 03, hoist the double-web frame structure 0 to the device, when the distance is about 200mm, confirm that the four hearts of the double-web frame structure 0 are accurately aligned with the lower end web support 4, then lower the double-web frame structure 0 to ensure that the four hearts of the double-web frame structure 0 are effectively supported; the four hearts include the upper heart, the lower heart, the left heart and the right heart, which are the positioning reference for the subsequent sleeving and assembly of the double-web frame structure 0.

[0084] (3) Adjust the lower end web support 4 to be accurately supported by the lower end web 01 through the lightening manhole 111, and at the same time, arrange the upper end web support 5 at a vertically collinear position in space with the lower end web support 4 and adjust the height.

[0085] (4) the fixed rod 6 is inserted into the bolt hole in the middle of the upper end web support 5 device, and is in contact with the panel of the double web frame structure 0; on the other hand, it is inserted into the fixed rod connecting hole 3 on the vertical plate 11 of the outer frame 1, and is connected and fixed; the rubber plate is inserted into the top of the upper end web support 5 to ensure better fixation of the upper end web support 5 device.

[0086] (5) according to the weight of the hoisted double web frame structure 0, select appropriate sling, ensure the same length of the sling, connect the sling with the lifting lug 2, check the connection before formal lifting, when the first lifting is about 300mm, slow down and check the four-core protection of the cylinder 03 of the double web frame structure 0 and the horizontal posture of the cylinder 03, and then transport.

[0087] It is worth mentioning that the contents not described in detail in the specification are all prior art known to those skilled in the art, and the model parameters of the fixed rod 6 and the lifting lug 2 are not specifically limited, and can be determined by using conventional equipment. In the present technical solution, the electric control elements not mentioned belong to the prior art, and therefore are not shown in the figure, and will not be described here.

[0088] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A low-stress conformal transport device with a double-web rib structure, wherein the double-web rib structure (0) comprises a lower web (01), an upper web (02) and a cylinder (03), wherein the lower web (01) and the upper web (02) are sequentially mounted on the cylinder (03); the device is characterized in that: It comprises an outer frame (1), a lifting lug (2), a fixing rod connection hole (3), a lower end web support (4), an upper end web support (5) and a fixing rod (6); The outer frame (1) is a cylindrical (03) structure with a semi-closed bottom surface, comprising a vertical plate (11) and a circular ring (12), for accommodating the double-web rib structure (0); a circular ring (12) is provided at the bottom of the cylinder for supporting the double-web rib structure (0); The fixing rod connection holes (3) are through-hole structures, arranged in a circumferential array in the radial direction of the vertical plate (11), and arranged and distributed in the axial direction of the vertical plate (11), and uniformly distributed every 45° in the circumferential direction; The lower end web support (4) is an internal and external thread lifting structure, which is arranged in a circumferential array on the radial direction of the ring (12), and is evenly distributed every 45° circumferentially, and the evenly distributed position corresponds to the arrangement position of the fixing rod connection hole (3); the lower part of the lower end web support (4) is an internal thread structure, and the upper part is an external thread structure, and the height is adjusted by thread lifting, and the support is on the bottom surface of the lower end web (01) of the double web rib structure (0); The upper web support (5) is a threaded structure for adjusting the height at the upper and lower ends, and is arranged in a circumferential array on the radial direction of the ring (12), uniformly distributed every 45° circumferentially, and the height is adjusted by internal and external threads; it is supported between the lower web (01) and the upper web (02), and the uniformly distributed position corresponds to the arrangement position of the lower web support (4), and the lower web (01) and the upper web (02) are supported at the same position; a bolt hole is provided in the middle of the upper web support (5); The fixing rod (6) is a threaded shaft with a raised column head, one end of which passes through the bolt hole on the upper web support (5) and rests on the panel of the double web rib structure (0) cylinder (03), and the other end passes through the upper fixing rod connection hole (3) and is connected to the vertical plate (11); The lifting lugs (2) are arranged in a circular array at the top of the vertical plate (11) and are used to connect the lifting slings; Among them, the lower end web support (4), the upper end web support (5) and the fixing rod (6) correspond in radial direction and are axially collinear, and evenly apply force points on the lower end web (01) and the upper end web (02) to reduce the deformation risk of the double web rib structure (0); the upper end web support (5) is fixed in a limited position without welding, and a lifting lug (2) is provided on the top of the vertical plate (11) of the outer frame (1).

2. The low-stress conformal transport device with a double-web rib structure according to claim 1, characterized in that: The vertical plate (11) of the outer frame (1) is provided with a circumferential array of lightening manholes (111), which are staggered with the fixing rod connection holes (3).

3. The low-stress conformal transport device with a double-web rib structure according to claim 2, characterized in that: The fixing rod connection holes (3) are evenly distributed on the vertical plate (11) at 45° in the circumferential direction, with a total of eight rows, and five holes in each row.

4. The low-stress conformal transport device with a double-web rib structure according to claim 3, characterized in that: The upper top of the lower end web support (4) is provided with a hard rubber or copper plate and contacts the bottom surface of the lower end web (01) of the double web rib structure (0).

5. The low-stress conformal transport device with a double-web rib structure according to claim 4, characterized in that: The upper web support (5) includes a base (51), an adjustment nut (52) and a top seat (53); The base (51) is a boss structure, the bottom of which is located on the top surface of the lower end web (01), and an external thread is provided on the boss; The top seat (53) is also a boss structure, the top of which contacts the bottom surface of the upper web (02), and an external thread is provided on the boss, and the external thread of the top seat (53) is in the opposite direction to the external thread of the base (51); The adjusting nut (52) is a long nut with an empty knife groove in the middle. The internal thread spiral lines at both ends of the adjusting nut (52) are in opposite directions. When the adjusting nut (52) is screwed to the base (51) and the top seat (53) respectively, the adjusting nut (52) is rotated, and the base (51) and the top seat (53) rise and fall with it. A radial through hole is provided in the middle of the adjusting nut (52) for assembling the fixing rod (6).

6. The low-stress conformal transport device with a double-web rib structure according to claim 5, characterized in that: A rubber plate is provided on the top seat (53) of the upper end web support (5), and a flexible contact is formed at the contact position between the top seat (53) of the upper end web support (5) and the bottom surface of the upper end web (02).

7. The low-stress conformal transport device with a double-web rib structure according to claim 6, characterized in that: The lifting lugs (2) are evenly distributed in a 90° circumferential direction on the vertical plate (11), and there are four of them in total.

8. A low-stress, shape-preserving transport method for a double-web rib structure, characterized by: The low-stress conformal transport device with a double-web rib structure according to claim 7 comprises the following steps: Step 1: Select a suitable conformal transfer device for transfer according to the diameter and height of the double web rib structure (0); and adjust the height of the lower web support (4) on the semi-enclosed bottom structure of the conformal transfer device before formal use; Step 2: Mark the four centers of the cylinder (03) of the double-web rib structure (0), hoist the double-web rib structure (0) onto the device, and when the distance is about 200 mm, confirm that the four centers of the double-web rib structure (0) are accurately aligned with the lower end web support (4), then drop the double-web rib structure (0) to ensure that the four centers of the double-web rib structure (0) are effectively supported; the four centers include the upper center, the lower center, the left center, and the right center, which are the positioning references for the subsequent assembly of the double-web rib structure (0); Step 3: accurately adjust the lower end web support (4) to effectively support the lower end web (01) through the lightening manhole (111); at the same time, arrange the upper end web support (5) in a vertically collinear position with the lower end web support (4) through the lightening manhole (111), and adjust the height; Step 4: On one hand, pass the fixing rod (6) through the bolt hole in the middle of the upper web support (5) device and press it against the panel of the double web rib structure (0); on the other hand, pass it through the fixing rod connection hole (3) on the vertical plate (11) of the outer frame (1) to connect and fix it; insert the rubber plate on the top of the upper web support (5) to fix the upper web support (5) device; Step 5. Select appropriate slings according to the weight of the double-web rib structure (0) to be hoisted, ensure that the slings are of the same length, connect the slings to the lifting lugs (2), and check the connection before formal lifting. When the first lifting is about 300mm, stop slowly to check the four-center protection of the cylinder (03) of the double-web rib structure (0) and the horizontal posture of the cylinder (03). After there are no problems, transfer.

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