An auxiliary device for the construction of a steel tank by the electric hoist inverted installation method

Abstract

The present invention discloses an auxiliary device for the construction of a steel tank by the electric hoist inverted installation method. After the telescopic end of the third hydraulic cylinder is extended through the first steel plate radian shaping plate, the second steel plate radian shaping plate, the second arc-shaped clamping plate and the first arc-shaped clamping plate, it can effectively extrude the arc-shaped steel plate, thereby effectively correcting the arc-shaped steel plate; it can flexibly and conveniently move the heavy arc-shaped steel plate, making its welding surface easy to align with the upper layer of the tank body or the arc-shaped steel plates welded on the adjacent two sides, facilitating the alignment of the welding surfaces and being conducive to the welding work of the tank body; through the second arc-shaped insertion plate and the first arc-shaped insertion plate, the second arc-shaped clamping plate and the first arc-shaped clamping plate, it can be clamped on the tank wall of the upper layer of the tank body and the arc-shaped steel plates welded on the two sides, so as to effectively further limit the arc-shaped steel plate aligned with the welding surface, making its welding surface better aligned and avoiding displacement, and improving the construction efficiency and construction quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel tank welding, and particularly relates to an auxiliary device for the construction of a steel tank by the electric hoist reverse installation method. Background Art

[0002] Currently, steel tanks are usually used for storing liquids and gases. In the prior art, many large steel tanks are constructed by the electric hoist reverse installation method.

[0003] The electric hoist reverse installation method is to use lifting equipment such as group-hoisting electric hoists to synchronously lift the storage tank. First, the wall plates are welded layer by layer starting from the top of the tank body, and then the welded top ring of the tank body is synchronously lifted by several electric hoists until the height of the top ring of the tank body from the ground is higher than the height of the next layer of the steel plate of the tank body. Then, the next layer of the steel plate of the tank body is welded below it, and so on, adding plates layer by layer until the last layer, until the entire tank body is welded.

[0004] In some engineering projects, when the number of various tanks is large or the size of the tanks is large, there are the following defects when welding the tanks by the electric hoist reverse installation method:

[0005] 1. Each layer of the tank body is a ring formed by welding multiple arc-shaped steel plates. The radian of each arc-shaped steel plate forming the ring is different, resulting in difficulty in aligning adjacent two arc-shaped steel plates during the welding process. Workers need to use equipment such as crowbars or hammers to correct the steel plates before welding, which is time-consuming and laborious and seriously affects the welding effect of the tank body.

[0006] 2. The weights of the multiple arc-shaped steel plates forming the ring are very large, and it is very laborious to move and adjust the positions of the arc-shaped steel plates. When the upper wall plate is lifted and the arc-shaped steel plates are welded one by one below it, it is necessary not only to align the top of the arc-shaped steel plate with the bottom of the upper wall plate, but also to align the two ends of the arc-shaped steel plate with the ends of the adjacent arc-shaped steel plates. Due to the very heavy arc-shaped steel plates, it is particularly laborious for workers to align the three welding surfaces of the arc-shaped steel plates at the same time, thus affecting the construction progress. Summary of the Invention

[0007] The present invention provides an auxiliary device for the construction of a steel tank by the electric hoist reverse installation method, which can effectively extrude and correct the arc-shaped steel plates, and is convenient for moving the heavy arc-shaped steel plates, facilitating the alignment of the welding surfaces of the arc-shaped steel plates with the upper tank body or the arc-shaped steel plates already welded on the adjacent two sides, improving the construction efficiency and construction quality.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] An auxiliary device for the construction of an electric hoist inverted installation method for a steel tank body, including a base, a circular guide rail is arranged on the top surface of the base, an n-shaped base is slidably installed on the circular guide rail, and a first hydraulic cylinder is installed on the top surface of the n-shaped base;

[0010] The telescopic end of the first hydraulic cylinder is connected with a cross plate, one side of the cross plate is connected with the top end of a vertical plate, the bottom end of the vertical plate is connected with a mounting plate, and a support plate is slidably installed on the mounting plate;

[0011] One side of the top surface of the support plate is fixed with a first steel plate arc shaping plate, one side of the first steel plate arc shaping plate is an inner arc surface, two first arc-shaped clamping plates are symmetrically and slidably installed on the arc surface of the first steel plate arc shaping plate, the adjacent ends of the two first arc-shaped clamping plates are in contact, a first arc-shaped inserting plate is slidably installed on the inner arc surface of the first arc-shaped clamping plate, the inner arc surface of the first arc-shaped inserting plate is the same diameter as the inner arc surface of the first arc-shaped clamping plate, and a first stop block is fixed on the outer arc surface of the first arc-shaped inserting plate;

[0012] The top parts of the two end faces of the first steel plate arc shaping plate are respectively connected with first positioning plates, first positioning rings are respectively connected to the two first positioning plates, and the two first positioning rings are respectively fixed to the two first arc-shaped clamping plates;

[0013] The two ends of the first steel plate arc shaping plate are respectively symmetrically provided with first arc-shaped top plates, and the first arc-shaped top plates are arranged below the first stop block;

[0014] The adjacent ends of the two first arc-shaped top plates are connected to each other, and a second hydraulic cylinder is arranged at the lower part of the connection, the second hydraulic cylinder is fixedly installed on the top surface of the support plate, the other side of the top surface of the support plate is connected with a support plate, a third hydraulic cylinder is installed on the side wall of the support plate, the telescopic end of the third hydraulic cylinder passes through the support plate and is fixed with a second steel plate arc shaping plate, and the bottom end of the second steel plate arc shaping plate is in sliding connection with the top surface of the support plate in a fitting manner;

[0015] The adjacent side surfaces of the second steel plate arc shaping plate and the first steel plate arc shaping plate are outer arc surfaces, two second arc-shaped clamping plates are symmetrically and slidably arranged on the arc surface of the second steel plate arc shaping plate, the adjacent ends of the two second arc-shaped clamping plates are in contact, and a second arc-shaped inserting plate is slidably arranged on the outer arc surface of the second arc-shaped clamping plate; the outer arc surface of the second arc-shaped inserting plate is the same diameter as the outer arc surface of the second arc-shaped clamping plate;

[0016] A second stop block is connected to the inner arc surface of the second arc-shaped insertion plate. The second stop block is slidably connected to the second arc-shaped clamping plate and the second steel plate radian shaping plate. At the top of the end faces of both ends of the second steel plate radian shaping plate, second positioning plates are respectively connected. Second positioning rings are respectively connected to the two second positioning plates. The two second positioning rings are respectively connected to the two second arc-shaped clamping plates. Second arc-shaped top plates are symmetrically arranged at both ends of the second steel plate radian shaping plate. The second arc-shaped top plates are arranged below the second stop block.

[0017] Fourth hydraulic cylinders are respectively arranged at the lower ends of the two second arc-shaped top plates. The telescopic ends of the two fourth hydraulic cylinders are respectively connected to the bottom ends of the two second arc-shaped top plates. The fourth hydraulic cylinders are fixedly installed on the top surface of the support plate. A fifth hydraulic cylinder is installed on the top surface of the support plate. The telescopic end of the fifth hydraulic cylinder passes through the support plate and is fixed with a first arc-shaped push plate and a second arc-shaped push plate. The end faces at both ends of the first arc-shaped push plate and the second arc-shaped push plate are inclined surfaces. The inner arc surface diameter of the first arc-shaped push plate is the same as that of the inner arc surface of the first arc-shaped clamping plate. The outer arc surface diameter of the second arc-shaped push plate is the same as that of the outer arc surface of the second arc-shaped clamping plate.

[0018] For the auxiliary device for the electric hoist reverse installation method of a steel tank body in the present invention, after the telescopic end of the third hydraulic cylinder is extended by controlling the first steel plate radian shaping plate, the second steel plate radian shaping plate, the second arc-shaped clamping plate and the first arc-shaped clamping plate, the arc-shaped steel plate can be effectively extruded and corrected. At the same time, it is convenient to move the arc-shaped steel plate to align its welding surface with the upper tank body or the arc-shaped steel plates welded on the adjacent two sides, so as to achieve the alignment of the welding surfaces. In addition, through the second arc-shaped insertion plate and the first arc-shaped insertion plate, the second arc-shaped clamping plate and the first arc-shaped clamping plate, it can be clamped on the tank wall of the upper tank body and the arc-shaped steel plates welded on the two sides, so as to effectively further limit the arc-shaped steel plate aligned with the welding surface, make its welding surface better aligned, and avoid displacement.

[0019] Preferably, at least two first sliding grooves are evenly formed on the inner arc surface of the first arc-shaped clamping plate. The first arc-shaped insertion plate is slidably arranged in the first sliding groove.

[0020] Preferably, a second sliding groove is formed on the outer arc surface of the first arc-shaped clamping plate. The first stop block is slidably arranged in the second sliding groove. The first stop block slides through the second sliding groove.

[0021] Preferably, first T-shaped sliders are respectively connected to both ends of the first stop block. First T-shaped sliding grooves are respectively formed on the inner walls of both sides of the second sliding groove. The first T-shaped sliders are respectively slidably arranged in the first T-shaped sliding grooves.

[0022] Preferably, first slots are respectively formed on the end faces at both ends of the first steel plate arc shaping plate, and the first stoppers are slidably arranged in the first slots.

[0023] Preferably, at least two second slots which are evenly distributed are respectively formed on the end faces of the two second arc-shaped clamping plates facing away from each other.

[0024] Preferably, at least two third chutes which are evenly distributed are formed on the outer arc surface of the second arc-shaped clamping plate, and the second arc-shaped insertion plate is slidably arranged in the third chutes.

[0025] Preferably, a fourth chute is formed on the inner arc surface of the second arc-shaped clamping plate, and the second stopper slides through the fourth chute.

[0026] Preferably, third slots are respectively formed on the end faces at both ends of the second steel plate arc shaping plate, and the second stoppers are slidably arranged in the third slots.

[0027] Preferably, a grip is connected to the side wall of the n-shaped base, and a U-shaped handle is connected to the bottom of the side wall of the support plate.

[0028] The present invention can achieve the following beneficial effects:

[0029] For the auxiliary device for the construction of the steel tank electric hoist inverted installation method of the present invention, after the telescopic end of the third hydraulic cylinder is extended through the first steel plate arc shaping plate, the second steel plate arc shaping plate, the second arc-shaped clamping plate and the first arc-shaped clamping plate, the arc-shaped steel plate can be effectively extruded, so as to effectively correct the arc-shaped steel plate.

[0030] The auxiliary device for the construction of the steel tank electric hoist inverted installation method of the present invention can flexibly and conveniently move the heavy arc-shaped steel plate, so that its welding surface is convenient to align with the upper layer of the tank body or the arc-shaped steel plates welded on the adjacent two sides, which is convenient to align the welding surface and is beneficial to the welding work of the tank body.

[0031] For the auxiliary device for the construction of the steel tank electric hoist inverted installation method of the present invention, through the second arc-shaped insertion plate, the first arc-shaped insertion plate, the second arc-shaped clamping plate and the first arc-shaped clamping plate, it can be clamped on the tank wall of the upper layer of the tank body and the arc-shaped steel plates welded on the two sides, so as to effectively further limit the arc-shaped steel plate aligned with the welding surface, make its welding surface better aligned, avoid displacement, and can improve the construction efficiency and construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings:

[0033] Figure 1Schematic diagram of the structure of an auxiliary device for the construction of an electric hoist inverted installation method for a steel tank body according to an embodiment of the present invention;

[0034] Figure 2 is an embodiment of the present invention Figure 1 Partial enlarged view of part of the structure in;

[0035] Figure 3 is an embodiment of the present invention Figure 1 Partial top view of the structure of;

[0036] Figure 4 is an embodiment of the present invention Figure 3 Partial enlarged view of part A in;

[0037] Figure 5 is an embodiment of the present invention Figure 1 Schematic three - dimensional structure diagram of the first arc-shaped clamping plate and the second arc-shaped clamping plate in;

[0038] Figure 6 is an embodiment of the present invention Figure 1 Schematic three - dimensional structure diagram of the first arc-shaped pushing plate and the second arc-shaped pushing plate in;

[0039] Figure 7 is an embodiment of the present invention Figure 1 Side view of the first steel plate radian shaping plate in;

[0040] Figure 8 is an embodiment of the present invention Figure 1 Side view of the second steel plate radian shaping plate in.

[0041] Reference numerals in the figure:

[0042] 1 is the base, 2 is the annular guide rail, 3 is the first annular dovetail groove, 4 is the second annular dovetail groove, 5 is the first dovetail block, 6 is the second dovetail block, 7 is the n-shaped base, 8 is the grip, 9 is the first hydraulic cylinder, 10 is the cross plate, 11 is the first guide rod, 12 is the vertical plate, 13 is the mounting plate, 14 is the T-shaped chute, 15 is the T-shaped slider, 16 is the connecting rod, 17 is the support plate, 18 is the first steel plate arc shaping plate, 19 is the mounting groove, 20 is the first arc-shaped clamping plate, 21 is the first arc-shaped dovetail groove, 22 is the first dovetail slide bar, 23 is the first ball, 24 is the first chute, 25 is the first arc-shaped insertion plate, 26 is the second ball, 27 is the first connecting block, 28 is the first positioning ring, 29 is the first positioning plate, 30 is the slot, 31 is the second hydraulic cylinder, 32 is the first connecting plate, 33 is the second chute, 34 is the first stop block, 35 is the support plate, 36 is the U-shaped handle, 37 is the third hydraulic cylinder, 38 is the second steel plate arc shaping plate, 39 is the second guide rod, 40 is the first mounting groove, 41 is the second arc-shaped clamping plate, 42 is the second arc-shaped dovetail groove, 43 is the second dovetail slide bar, 44 is the third ball, 45 is the third chute, 46 is the second arc-shaped insertion plate, 47 is the fourth ball, 48 is the second connecting block, 49 is the second positioning ring, 50 is the second positioning plate, 51 is the second slot, 52 is the fourth hydraulic cylinder, 53 is the second arc-shaped top plate, 54 is the fourth chute, 55 is the second stop block, 56 is the fifth hydraulic cylinder, 57 is the second connecting plate, 58 is the first arc-shaped push plate, 59 is the fifth ball, 60 is the first T-shaped slider, 61 is the first T-shaped chute, 62 is the first slot, 63 is the first arc-shaped top plate, 64 is the second T-shaped slider, 65 is the second T-shaped chute, 66 is the second arc-shaped push plate, 67 is the sixth ball, 68 is the third slot. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] The following will, with reference to the drawings, elaborate on the technical solutions provided by each embodiment of the present invention.

[0045] Embodiment

[0046] As Figures 1 to 4 shown, an auxiliary device for the construction of an electric hoist for upside-down installation of a steel tank body includes a base 1. An annular guide rail 2 is provided on the top surface of the base 1. An n-shaped base 7 is slidably installed on the annular guide rail 2. A first hydraulic cylinder 9 is installed on the top surface of the n-shaped base 7;

[0047] The telescopic end of the first hydraulic cylinder 9 is connected with a cross plate 10. One side of the cross plate 10 is connected with the top end of a vertical plate 12, the bottom end of the vertical plate 12 is connected with a mounting plate 13, and a support plate 17 is slidably mounted on the mounting plate 13;

[0048] As Figure 5 and 7 shown, one side of the top surface of the support plate 17 is fixed with a first steel plate arc shaping plate 18. One side of the first steel plate arc shaping plate 18 is an inner arc surface. Two first arc-shaped clamping plates 20 are symmetrically and slidably mounted on the arc surface of the first steel plate arc shaping plate 18. The adjacent ends of the two first arc-shaped clamping plates 20 are in contact. A first arc-shaped inserting plate 25 is slidably mounted on the inner arc surface of the first arc-shaped clamping plate 20. The inner arc surface of the first arc-shaped inserting plate 25 is of the same diameter as the inner arc surface of the first arc-shaped clamping plate 20. A first stop block 34 is fixed on the outer arc surface of the first arc-shaped inserting plate 25;

[0049] The top parts of the two end faces of the first steel plate arc shaping plate 18 are respectively connected with first positioning plates 29. First positioning rings 28 are respectively connected to the two first positioning plates 29, and the two first positioning rings 28 are respectively fixedly connected with the two first arc-shaped clamping plates 20;

[0050] Two first arc-shaped top plates 63 are symmetrically arranged at both ends of the first steel plate arc shaping plate 18 respectively. The first arc-shaped top plates 63 are arranged below the first stop block 34;

[0051] As Figure 8 shown, the adjacent ends of the two first arc-shaped top plates 63 are connected to each other. A second hydraulic cylinder 31 is provided at the lower end of the connection part. The second hydraulic cylinder 31 is fixedly mounted on the top surface of the support plate 17. Another side of the top surface of the support plate 17 is connected with a support plate 35. A third hydraulic cylinder 37 is mounted on the side wall of the support plate 35. The telescopic end of the third hydraulic cylinder 37 passes through the support plate 35 and is fixed with a second steel plate arc shaping plate 38. The bottom end of the second steel plate arc shaping plate 38 is in sliding fit with the top surface of the support plate 17;

[0052] As Figure 5 shown, the adjacent side surfaces of the second steel plate arc shaping plate 38 and the first steel plate arc shaping plate 18 are outer arc surfaces. Two second arc-shaped clamping plates 41 are symmetrically and slidably arranged on the arc surface of the second steel plate arc shaping plate 38. The adjacent ends of the two second arc-shaped clamping plates 41 are in contact. A second arc-shaped inserting plate 46 is slidably arranged on the outer arc surface of the second arc-shaped clamping plate 41; The outer arc surface of the second arc-shaped inserting plate 46 is of the same diameter as the outer arc surface of the second arc-shaped clamping plate 41;

[0053] A second stop block 55 is connected to the inner arc surface of the second arc-shaped insertion plate 46. The second stop block 55 is slidably connected to the second arc-shaped clamping plate 41 and the second steel plate radian shaping plate 38. At the top of the end faces at both ends of the second steel plate radian shaping plate 38, second positioning plates 50 are respectively connected. Second positioning rings 49 are respectively connected to the two second positioning plates 50. The two second positioning rings 49 are respectively connected to the two second arc-shaped clamping plates 41. Second arc-shaped top plates 53 are symmetrically arranged at both ends of the second steel plate radian shaping plate 38 respectively. The second arc-shaped top plates 53 are arranged at the lower end of the second stop block 55;

[0054] As Figure 6 shown, fourth hydraulic cylinders 52 are respectively arranged at the lower ends of the two second arc-shaped top plates 53. The telescopic ends of the two fourth hydraulic cylinders 52 are respectively connected to the bottom ends of the two second arc-shaped top plates 53. The fourth hydraulic cylinders 52 are fixedly installed on the top surface of the support plate 17. A fifth hydraulic cylinder 56 is installed on the top surface of the support plate 17. The telescopic end of the fifth hydraulic cylinder 56 passes through the support plate 17 and is fixed with a first arc-shaped push plate 58 and a second arc-shaped push plate 66. The end faces at both ends of the first arc-shaped push plate 58 and the second arc-shaped push plate 66 are inclined surfaces; the inner arc surface diameter of the first arc-shaped push plate 58 is the same as that of the inner arc surface of the first arc-shaped clamping plate 20; the outer arc surface diameter of the second arc-shaped push plate 66 is the same as that of the outer arc surface of the second arc-shaped clamping plate 41.

[0055] As Figure 1 shown, for the auxiliary device for the electric hoist reverse installation method of the steel tank body of the present invention, after the telescopic end of the third hydraulic cylinder 37 is extended by controlling the first steel plate radian shaping plate 18, the second steel plate radian shaping plate 38, the second arc-shaped clamping plate 41 and the first arc-shaped clamping plate 20, the arc-shaped steel plate can be effectively extruded and corrected. At the same time, it is convenient to move the arc-shaped steel plate so that its welding surface is aligned with the upper tank body or the arc-shaped steel plates welded on the adjacent two sides, realizing the alignment of the welding surfaces. In addition, through the second arc-shaped insertion plate 46 and the first arc-shaped insertion plate 25, the second arc-shaped clamping plate 41 and the first arc-shaped clamping plate 20, it can be clamped on the tank wall of the upper tank body and the arc-shaped steel plates welded on the two sides, so as to effectively limit the arc-shaped steel plate aligned with the welding surface further, making its welding surface better aligned and avoiding displacement.

[0056] As Figure 1 and Figure 2 shown, preferably, a first annular dovetail groove 3 and a second annular dovetail groove 4 are respectively opened on the inner circumferential surface and the outer circumferential surface of the annular guide rail 2. A first dovetail block 5 and a second dovetail block 6 are respectively slidably arranged in the first annular dovetail groove 3 and the second annular dovetail groove 4. The opposite ends of the first dovetail block 5 and the second dovetail block 6 are respectively connected to the inner walls on both sides of the n-shaped base 7.

[0057] Preferably, a handle 8 is connected to the side wall of the n-shaped base 7.

[0058] Preferably, the transverse plate 10 is provided with a first guiding hole, and the transverse plate 10 is slidably sleeved on the first guiding rod 11 through the first guiding hole. The bottom end of the first guiding rod 11 is connected to the top surface of the n-shaped base 7.

[0059] Preferably, the top surface of the mounting plate 13 is provided with a T-shaped sliding groove 14. Two T-shaped sliding blocks 15 are slidably arranged in the T-shaped sliding groove 14. The top ends of the two T-shaped sliding blocks 15 are respectively connected to the bottom end of the connecting rod 16. The supporting plate 17 is connected to the top ends of the two connecting rods 16.

[0060] As Figure 3 shown, preferably, at least two uniformly distributed slotted grooves 30 are respectively formed on the opposite end faces of the two first arc-shaped clamping plates 20.

[0061] As Figure 1 and Figure 2 shown, preferably, an installation groove 19 is formed on the arc-shaped surface of the first steel plate curvature shaping plate 18. The two first arc-shaped clamping plates 20 are symmetrically and slidably arranged in the installation groove 19.

[0062] Preferably, a first arc-shaped dovetail groove 21 is formed on the inner wall of the installation groove 19. Two first dovetail sliding strips 22 are symmetrically and slidably arranged in the first arc-shaped dovetail groove 21. The two first dovetail sliding strips 22 are respectively connected to the outer arc surfaces of the two first arc-shaped clamping plates 20.

[0063] Preferably, the bottom ends of the adjacent end faces of the two first arc-shaped clamping plates 20 are both inclined surfaces. At least two first balls 23 are uniformly embedded on the inner arc surface of the first arc-shaped clamping plate 20.

[0064] As ​ shown, preferably, at least two first sliding grooves 24 are uniformly formed on the inner arc surface of the first arc-shaped clamping plate 20. The first arc-shaped inserting plate 25 is slidably arranged in the first sliding groove 24.

[0065] As ​ shown, preferably, at least two second balls 26 are uniformly embedded on the inner arc surface of the first arc-shaped inserting plate 25.

[0066] Preferably, a second sliding groove 33 is formed on the outer arc surface of the first arc-shaped clamping plate 20. The first stopper 34 is slidably arranged in the second sliding groove 33. The first stopper 34 slides through the second sliding groove 33. The two ends of the first stopper 34 are respectively connected with first T-shaped sliding blocks 60. First T-shaped sliding grooves 61 are respectively formed on the two inner side walls of the second sliding groove 33. The first T-shaped sliding blocks 60 are respectively slidably arranged in the first T-shaped sliding grooves 61. First slotted grooves 62 are respectively formed on the two end faces of the first steel plate curvature shaping plate 18. The first stopper 34 is slidably arranged in the first slotted grooves 62.

[0067] As ​As shown in the figure, preferably, the first positioning ring 28 is fixedly connected to the first positioning plate 29 by a bolt.

[0068] Preferably, the first positioning ring 28 is fixedly connected to the first arc-shaped clamping plate 20 through the first connecting block 27.

[0069] As shown in ​ and ​ the figure, preferably, a first connecting plate 32 is fixedly connected between adjacent ends of two first arc-shaped top plates 63, a second hydraulic cylinder 31 is arranged directly below the first connecting plate 32, and the telescopic end of the second hydraulic cylinder 31 is fixedly connected to the bottom end of the first connecting plate 32.

[0070] As shown in ​ and ​ the figure, preferably, a U-shaped handle 36 is connected to the bottom of the side wall of the support plate 35.

[0071] Preferably, a second guide rod 39 is connected to the side wall of the second steel plate radian shaping plate 38, the support plate 35 is provided with a second guide hole, and the support plate 35 is slidably sleeved on the second guide rod 39 through the second guide hole.

[0072] Preferably, a first installation groove 40 is formed on the arc-shaped surface of the second steel plate radian shaping plate 38, and two second arc-shaped clamping plates 41 are symmetrically and slidably arranged in the first installation groove 40.

[0073] Preferably, at least two uniformly distributed second slots 51 are respectively formed on the end faces of the two second arc-shaped clamping plates 41 facing away from each other.

[0074] Preferably, a second arc-shaped dovetail groove 42 is formed on the inner wall of the first installation groove 40, two second dovetail slide bars 43 are symmetrically and slidably arranged in the second arc-shaped dovetail groove 42, and the two second dovetail slide bars 43 are respectively connected to the inner arc surfaces of the two second arc-shaped clamping plates 41.

[0075] Preferably, the bottom of the end faces of the adjacent ends of the two second arc-shaped clamping plates 41 are both inclined planes.

[0076] As shown in ​ the figure, preferably, at least two third balls 44 are uniformly embedded on the outer arc surface of the second arc-shaped clamping plate 41.

[0077] As shown in ​ and ​ the figure, preferably, at least two uniformly distributed third chutes 45 are formed on the outer arc surface of the second arc-shaped clamping plate 41, and the second arc-shaped plug 46 is slidably arranged in the third chutes 45.

[0078] As shown in ​ the figure, preferably, at least two fourth balls 47 are uniformly embedded on the outer arc surface of the second arc-shaped plug 46.

[0079] As shown ​ in the figure, preferably, a fourth chute 54 is formed on the inner arc surface of the second arc-shaped clamping plate 41, and the second stop block 55 slides through the fourth chute 54.

[0080] As shown ​ in the figure, second T-shaped sliders 64 are respectively fixed at both ends of the second stop block 55, second T-shaped chutes 65 are respectively formed on the inner walls of both sides of the fourth chute 54, and the second T-shaped sliders 64 are slidably arranged in the second T-shaped chutes 65.

[0081] As shown ​ and ​ in the figure, preferably, third slots 68 are respectively formed on the end faces of both ends of the second steel plate radian shaping plate 38, and the second stop block 55 is slidably arranged in the third slots 68.

[0082] As shown ​ in the figure, preferably, the second positioning ring 49 is fixedly connected to the second positioning plate 50 through a bolt.

[0083] Preferably, the second positioning ring 49 is fixedly connected to the second arc-shaped clamping plate 41 through a second connecting block 48.

[0084] As shown ​ and ​ in the figure, preferably, the telescopic end of the fifth hydraulic cylinder 56 passes through the supporting plate 17 and is connected to the second connecting plate 57, and the first arc-shaped push plate 58 and the second arc-shaped push plate 66 are connected to the top surface of the second connecting plate 57.

[0085] Preferably, the tops of both the first arc-shaped push plate 58 and the second arc-shaped push plate 66 pass through the supporting plate 17 and are respectively inserted into the installation slot 19 and the first installation slot 40.

[0086] Preferably, at least two fifth balls 59 are evenly embedded on the inner arc surface of the first arc-shaped push plate 58.

[0087] Preferably, at least two sixth balls 67 are evenly embedded on the outer arc surface of the second arc-shaped push plate 66.

[0088] Preferably, the first hydraulic cylinder 9, the second hydraulic cylinder 31, the third hydraulic cylinder 37, the fourth hydraulic cylinder 52 and the fifth hydraulic cylinder 56 are respectively connected to an external hydraulic station pipeline through a conduit.

[0089] Preferably, chamfers are arranged at the adjacent ends of the tops of the first arc-shaped insertion plate 25 and the second arc-shaped insertion plate 46.

[0090] The working principle of the auxiliary device for the construction of the steel tank electric hoist inverted installation method in this embodiment is as follows: When in use, as shown ​As shown, the welding work of the steel tank body is carried out within the annular guide rail 2 on the base 1, and the axis of the tank body is aligned with the axis of the annular guide rail 2. Then, hoisting equipment such as group lifting electric hoists is fixedly installed on the top surface of the base 1 in advance for lifting the upper-layer tank body. Subsequently, the welding work of the topmost layer of the tank body is carried out. After the topmost layer of the tank body is welded, it is lifted by hoisting equipment such as group lifting electric hoists.

[0091] After the topmost layer of the tank body is lifted, the next layer of the tank body is welded to its bottom. During this process, the arc-shaped steel plate for fabricating the next layer of the tank body is first placed between the second steel plate radian shaping plate 38 and the first steel plate radian shaping plate 18 on the support plate 17. Then, the third hydraulic cylinder 37 is started, so that the telescopic end of the third hydraulic cylinder 37 extends. At this time, the telescopic end of the third hydraulic cylinder 37 pushes the second steel plate radian shaping plate 38 towards the first steel plate radian shaping plate 18, so that the arc-shaped steel plate is finally squeezed between the second steel plate radian shaping plate 38 and the first steel plate radian shaping plate 18. When the arc-shaped steel plate is squeezed between the second steel plate radian shaping plate 38 and the first steel plate radian shaping plate 18, the arc-shaped steel plate can be effectively corrected, so that the radian of the arc-shaped steel plate matches the overall radian of the tank body. By starting the first hydraulic cylinder 9, the height of the arc-shaped steel plate can be raised or lowered. The position of the arc-shaped steel plate can be adjusted in the left-right direction by pushing and pulling the support plate 35 through the U-shaped handle 36. At the same time, the n-shaped base 7 can be moved along the annular guide rail 2 by holding the handle 8. In this way, after the upper layer of the tank body is lifted, when welding the next layer of the arc-shaped steel plate to its bottom, the heavy arc-shaped steel plate can be moved flexibly and conveniently, so that its welding surface is convenient to align with the upper-layer tank body or the arc-shaped steel plates welded on the adjacent two sides. Thus, not only can the arc-shaped steel plate be effectively corrected, but also the heavy arc-shaped steel plate can be moved conveniently, which is conducive to achieving the purpose of aligning the welding surface and provides convenience for the welding work of the tank body.

[0092] A gap can be provided between two adjacent second arc-shaped insertion plates 46, and a gap can also be provided between two adjacent first arc-shaped insertion plates 25. After the welding surfaces of the arc-shaped steel plates are aligned, the fourth hydraulic cylinder 52 and the second hydraulic cylinder 31 are activated to synchronously lift the second arc-shaped top plate 53 and the first arc-shaped top plate 63. At this time, the second arc-shaped top plate 53 and the first arc-shaped top plate 63 will simultaneously push the second stop block 55 and the first stop block 34 upward, causing the second arc-shaped insertion plate 46 and the first arc-shaped insertion plate 25 to rise synchronously. As the second arc-shaped insertion plate 46 and the first arc-shaped insertion plate 25 rise, finally the tops of the second arc-shaped insertion plate 46 and the first arc-shaped insertion plate 25 are clamped on both sides of the tank wall of the upper layer of the tank body, so that when the welding surface at the top of the arc-shaped steel plate is welded to the upper layer of the tank body, displacement can be effectively avoided; when the welding surface at the top of the arc-shaped steel plate is welded to the bottom of the upper layer of the tank body, only the area between two adjacent second arc-shaped insertion plates 46 or two adjacent first arc-shaped insertion plates 25 needs to be welded, so that the arc-shaped steel plate can be pre-fixed to the bottom of the upper layer of the tank body. At the same time, the pins between the second positioning ring 49 and the second positioning plate 50, and the pins between the first positioning ring 28 and the first positioning plate 29 can be pulled out first to remove the connections between the second positioning ring 49 and the second positioning plate 50, and between the first positioning ring 28 and the first positioning plate 29. Then the fifth hydraulic cylinder 56 is activated to make the telescopic end of the fifth hydraulic cylinder 56 retract, causing the first arc-shaped push plate 58 and the second arc-shaped push plate 66 to rise simultaneously; when the first arc-shaped push plate 58 rises, the inclined surfaces on both sides thereof will push the two first arc-shaped clamping plates 20 to both sides, and when the second arc-shaped push plate 66 rises, the inclined surfaces on both sides thereof will push the two second arc-shaped clamping plates 41 to both sides, so that the gap between the side ends of the second arc-shaped clamping plate 41 and the side ends of the first arc-shaped clamping plate 20 is clamped on the adjacent welded arc-shaped steel plates; thus, when the welding surfaces at both ends of the arc-shaped steel plate are welded to the welding surfaces of the adjacent welded arc-shaped steel plates on both sides, displacement can be effectively avoided. When the welding surfaces at both ends of the arc-shaped steel plate are welded to the welding surfaces of the adjacent welded arc-shaped steel plates on both sides, only the welds in the slotted groove 30 and the second slotted groove 51 need to be welded, so that the arc-shaped steel plate can be pre-fixed to the adjacent welded arc-shaped rod plates. It can be seen that the auxiliary device for the electric hoist inverted installation method of the steel tank body of the present invention can also effectively further limit the arc-shaped steel plate aligned with the welding surface, and play a role in pre-fixing the arc-shaped rod plate by welding the welds in the slotted groove 30, the second slotted groove 51, the gap between two adjacent second arc-shaped insertion plates 46 or the gap between two adjacent first arc-shaped insertion plates 25.

[0093] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. An auxiliary device for the construction of a steel tank by the electric hoist reverse installation method, including a base, characterized in that, The top surface of the base is provided with an annular guide rail, on which an n-shaped base is slidably mounted, and a first hydraulic cylinder is mounted on the top surface of the n-shaped base; The telescopic end of the first hydraulic cylinder is connected to a cross plate, one side of the cross plate is connected to the top end of a vertical plate, the bottom end of the vertical plate is connected to a mounting plate, and a support plate is slidably mounted on the mounting plate; One side of the top surface of the support plate is fixed with a first steel plate arc shaping plate, one side of the first steel plate arc shaping plate is an inner arc surface, two first arc-shaped clamping plates are symmetrically and slidably mounted on the arc surface of the first steel plate arc shaping plate, the adjacent ends of the two first arc-shaped clamping plates are in contact, a first arc-shaped inserting plate is slidably mounted on the inner arc surface of the first arc-shaped clamping plate, the inner arc surface of the first arc-shaped inserting plate is of the same diameter as the inner arc surface of the first arc-shaped clamping plate, and a first stop block is fixed on the outer arc surface of the first arc-shaped inserting plate; The top parts of the two end faces of the first steel plate arc shaping plate are respectively connected with first positioning plates, first positioning rings are respectively connected to the two first positioning plates, and the two first positioning rings are respectively fixedly connected to the two first arc-shaped clamping plates; The two ends of the first steel plate arc shaping plate are respectively symmetrically provided with first arc-shaped top plates, and the first arc-shaped top plates are arranged below the first stop blocks; The adjacent ends of the two first arc-shaped top plates are connected to each other, and a second hydraulic cylinder is arranged at the lower end of the connection part. The second hydraulic cylinder is fixedly mounted on the top surface of the support plate. A support plate is connected to the other side of the top surface of the support plate, and a third hydraulic cylinder is mounted on the side wall of the support plate. The telescopic end of the third hydraulic cylinder passes through the support plate and is fixed with a second steel plate arc shaping plate, and the bottom end of the second steel plate arc shaping plate is in sliding fit with the top surface of the support plate; The adjacent side surfaces of the second steel plate arc shaping plate and the first steel plate arc shaping plate are outer arc surfaces, two second arc-shaped clamping plates are symmetrically slidably arranged on the arc surface of the second steel plate arc shaping plate, the adjacent ends of the two second arc-shaped clamping plates are in contact, and a second arc-shaped inserting plate is slidably arranged on the outer arc surface of the second arc-shaped clamping plate; The outer arc surface of the second arc-shaped inserting plate is of the same diameter as the outer arc surface of the second arc-shaped clamping plate; A second stop block is connected to the inner arc surface of the second arc-shaped inserting plate, and the second stop block is slidably connected to the second arc-shaped clamping plate and the second steel plate arc shaping plate. The top parts of the two end faces of the second steel plate arc shaping plate are respectively connected with second positioning plates, second positioning rings are respectively connected to the two second positioning plates, the two second positioning rings are respectively connected to the two second arc-shaped clamping plates, and the two ends of the second steel plate arc shaping plate are respectively symmetrically provided with second arc-shaped top plates, and the second arc-shaped top plates are arranged below the second stop blocks; Fourth hydraulic cylinders are respectively arranged at the lower ends of the two second arc-shaped top plates. The telescopic ends of the two fourth hydraulic cylinders are respectively connected to the bottom ends of the two second arc-shaped top plates. The fourth hydraulic cylinders are fixedly installed on the top surface of the support plate. A fifth hydraulic cylinder is installed on the top surface of the support plate. The telescopic end of the fifth hydraulic cylinder passes through the support plate and is fixed with a first arc-shaped push plate and a second arc-shaped push plate. The end faces at both ends of the first arc-shaped push plate and the second arc-shaped push plate are inclined surfaces; the inner arc surface of the first arc-shaped push plate has the same diameter as the inner arc surface of the first arc-shaped clamping plate; the outer arc surface of the second arc-shaped push plate has the same diameter as the outer arc surface of the second arc-shaped clamping plate.

2. The auxiliary device for the construction of the electric hoist inverted installation method of the steel tank according to claim 1, characterized in that, At least two first chutes are evenly opened on the inner arc surface of the first arc-shaped clamping plate. The first arc-shaped inserting plate is slidably arranged in the first chute.

3. The auxiliary device for the construction of the steel tank electric hoist inverted installation method according to claim 1, characterized in that, A second chute is opened on the outer arc surface of the first arc-shaped clamping plate. The first stopper is slidably arranged in the second chute. The first stopper slidably passes through the second chute.

4. The auxiliary device for the construction of the electric hoist inverted installation method of the steel tank according to claim 3, characterized in that, First T-shaped sliders are respectively connected to both ends of the first stopper. First T-shaped chutes are respectively opened on the inner walls of both sides of the second chute. The first T-shaped sliders are respectively slidably arranged in the first T-shaped chutes.

5. The auxiliary device for the construction of the electric hoist reverse installation method of the steel tank according to claim 1, characterized in that, First slots are respectively opened on the end faces at both ends of the first steel plate radian shaping plate. The first stopper is slidably arranged in the first slots.

6. The auxiliary device for the construction of the steel tank electric hoist inverted installation method according to claim 1, characterized in that, At least two uniformly distributed second slots are respectively opened on the opposite end faces of the two second arc-shaped clamping plates.

7. The auxiliary device for the construction of the electric chain hoist inverted installation method of the steel tank as described in claim 1, wherein, At least two uniformly distributed third chutes are opened on the outer arc surface of the second arc-shaped clamping plate. The second arc-shaped inserting plate is slidably arranged in the third chute.

8. The auxiliary device for the construction of the steel tank electric hoist inverted installation method according to claim 1, characterized in that, A fourth chute is opened on the inner arc surface of the second arc-shaped clamping plate. The second stopper slidably passes through the fourth chute.

9. The auxiliary device for the construction of the electric hoist inverted installation method of the steel tank according to claim 1, characterized in that, Third slots are respectively opened on the end faces at both ends of the second steel plate radian shaping plate. The second stopper is slidably arranged in the third slots.

10. The auxiliary device for the construction of the electric hoist inverted installation method of the steel tank body according to any one of claims 1-8, characterized in that, A handle is connected to the side wall of the n-shaped base. A U-shaped handle is connected to the bottom of the side wall of the support plate.

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